CN217550836U - Conductive arm bending and shape correcting device of scissor type isolating switch - Google Patents

Abstract

The utility model belongs to scissors formula isolator field, in particular to scissors formula isolator's the manufacturing of electrically conductive arm. The conductive arm bending and shape correcting device of the scissor type isolating switch comprises a device base, wherein a clamping device used for clamping and fixing a straight section of a conductive arm and enabling the bent section of the conductive arm to be in a suspension state is arranged on the device base; the device base is also provided with a pressure device, and the pressure device is provided with a lead screw fixing seat which is movably arranged along the bending direction of the bending section to reversely bend the bending section; the conductive arm bending and shape correcting device further comprises a protective cap which is buckled at the tail end of the bending section, and the protective cap is used for being isolated between the tail end of the bending section and the screw rod fixing seat to protect the tail end of the bending section. The problem of low yield that the deflection volume is difficult to control when adopting the bending forming process to make the conductive arm among the prior art is solved.

Description

Conductive arm bending and shape correcting device of scissor type isolating switch

Technical Field

The utility model belongs to scissors formula isolator field, in particular to scissors formula isolator's electrically conductive arm's manufacturing.

Background

A typical structure of a scissors-type disconnecting switch in the prior art is shown in fig. 1, and includes a mounting bracket 100, a conductive arm 1 in a scissors form is disposed on the mounting bracket 100, and an operating mechanism 12 drives the conductive arm 1 to open and close in the scissors form during operation, so that a moving contact at the top end of the conductive arm 1 clamps or releases a stationary contact rod 17 serving as a stationary contact 16, thereby implementing connection and disconnection of a circuit. The above structure can also refer to a scissors type isolation switch with high parameter bus conversion current as disclosed in patent document CN 113593969A.

Currently, the conductive arm 1 has various cross-sectional forms, such as a circle, a rectangle, and an oblong, however, the conductive arm 1 can be divided into a straight section 101 and a bent section 102 along the extending direction, and the bent section 102 is used for arranging a movable contact. In order to avoid the static contact rod 7 from slipping under the action of the two inclined conductive arms 1 and enable the movable contact to reliably clamp the static contact rod 17, the bending section 102 needs to be bent towards one side relative to the straight section 101 and meets a certain deflection amount. In order to ensure that the switching-on position of the conductive arm 1 is matched with the static contact rod 17 and the movable contact is reliably contacted with the static contact rod 17, the deflection between the bending section 102 and the straight section 101 needs to meet the requirement of higher precision. As shown in fig. 2, the conductive arm 1 is divided into a straight section 101 and a bending section 102, the bending section 102 and the horizontal section 101 form a certain included angle, and a height h from a vertex of an end surface of the bending section 102 to a horizontal plane is a fixed value to be ensured.

In the prior art, the conductive arm 1 is usually made by butt welding two sections of aluminum alloy pipes arranged at a certain angle, but waste slag and waste gas are easily generated during welding, which is not beneficial to environmental protection, and a complex welding process is needed to avoid thermal deformation of the welded pipes, so that the manufacturing cost is high, and the connection strength of the welding joint is limited. The novel manufacturing process of the conductive arm 1 developed at present adopts a bending forming process, and the bending section 102 is formed by bending an integral pipe body. However, when the pipe is bent, the deflection of the conductive arm 1 is not easily controlled by the bending process due to the influence of factors such as the positioning accuracy of the pipe on the bending machine and the resilience of the bent pipe, so that the yield of the conductive arm manufactured by the conventional bending process is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a scissors formula isolator's electrically conductive arm school shape device of bending solves the problem that the yield is low that leads to because the beat volume is wayward when adopting the shaping technology of bending to make electrically conductive arm among the prior art.

In order to solve the problem, the utility model discloses the electrically conductive arm bending school shape device that well adoption provided shear type isolator's the technical scheme who adopts is: the device comprises a device base, wherein a clamping device used for clamping and fixing a straight section of a conductive arm and enabling a bent section of the conductive arm to be in a cantilever state is arranged on the device base; the device base is also provided with a pressure device, and the pressure device is provided with a lead screw fixing seat which is movably arranged along the bending direction of the bending section so as to bend the bending section reversely; the conductive arm bending and shape correcting device further comprises a protective cap which is buckled at the tail end of the bending section, and the protective cap is used for being isolated between the tail end of the bending section and the screw rod fixing seat to protect the tail end of the bending section.

Has the beneficial effects that: the clamping device in the device base can clamp and fix the straight section of the conductive arm so as to keep the stability of the conductive arm when the pressure applying device applies pressure to the conductive arm, the pressure applying device jacking seat can apply force to the bending section of the conductive arm along the bending direction of the bending section, the deflection between the bending section and the straight section of the conductive arm can be corrected, the tail end of the bending section can be protected by the protective cap, the outer surface of the conductive arm is prevented from being scratched by the jacking seat in the process of applying force to the conductive arm, other defects caused by the correction process are avoided, the correction process can be smoothly carried out, the yield of the bending forming process is favorably improved, and the environmental protection advantages, the cost advantages and the strength advantages of the bending forming process compared with the welding mode adopted in the prior art can be better exerted.

Furthermore, a shape correction amount indicating scale for measuring the shape correction amount of the conductive arm is mounted on the device, and the shape correction amount indicating scale is arranged corresponding to the lead screw fixing seat.

Has the beneficial effects that: the deflection between the correction bent section and the straight section of the conductive arm can be observed more accurately, so that the deflection of the conductive tube can be controlled with higher precision.

Furthermore, the protective cap is provided with an edge part for pressing the screw rod fixing seat, and the edge part is of an arc-shaped structure formed by a fillet between two corresponding side surfaces of the protective cap.

Has the beneficial effects that: the edge part of the arc-shaped structure bears the jacking pressure of the jacking seat, and when the protective cap moves along with the swinging of the bending section, the protective cap can be prevented from being greatly abraded with the jacking seat, so that the service life is prolonged, and the jacking seat is prevented from being damaged.

Furthermore, the pressing device comprises a lead screw nut mechanism, a lead screw for outputting linear displacement is arranged on the lead screw, and the lead screw fixing seat is connected to the lead screw of the lead screw nut mechanism.

Has the beneficial effects that: the screw rotation of the screw nut mechanism enables the screw fixing seat assembled on the screw to realize reciprocating motion, and the screw nut mechanism has the characteristics of labor saving, micro-feeding and self-locking, so that the reciprocating motion of the screw fixing seat can be adjusted more accurately and not only is labor saving.

Furthermore, the conductive arm bending and shape correcting device comprises a guide rod, the lead screw fixing seat is a sliding plate which is assembled on the guide rod in a guiding mode, the sliding plate is provided with a lead screw fixing seat, the tail end of the lead screw is in rotating fit with the lead screw fixing seat, and an axial stopping structure is arranged between the lead screw and the lead screw fixing seat; the top of the guide rod is fixed with a nut fixing seat, and a nut in the screw nut mechanism is fixed on the nut fixing seat and forms thread transmission with a screw.

Furthermore, the guide rod is a vertical rod, the lead screw fixing seat is assembled on the guide rod along the vertical direction in a guiding mode, and an elastic resetting piece used for applying an upward acting force to the lead screw fixing seat to offset the gravity of the lead screw fixing seat is arranged between the lead screw fixing seat and the nut fixing seat.

Has the advantages that: because this device is by manual operation, the setting that elasticity resets is in order to offset the gravity of lead screw fixing base, has alleviateed operating personnel's manipulation strength.

Furthermore, a righting column extending along the deflection direction of the bending section on the conductive arm is further arranged on the device base, and the righting column is used for limiting two corresponding side walls of the bending section so as to prevent the bending section of the conductive arm from deflecting.

Has the advantages that: because the conductive arm is provided with the inclined end, the rotation of the conductive arm relative to the axial direction of the conductive arm is limited by the arrangement of the righting column, and the deflection of the bent section when the bent section is pressed can be avoided, so that the shape correction process is more stable, and the accuracy of the shape correction amount is favorably ensured.

Furthermore, the righting column comprises a mandrel, a rotating sleeve is rotatably sleeved on the mandrel, and the rotating sleeve is used for rolling and supporting the bending section.

Has the beneficial effects that: when the conductive arm horizontally passes through the space between the two righting columns, the rotating sleeve can rotate relative to the mandrel, so that sliding friction of the conductive arm relative to the conductive arm is converted into rolling friction, and the abrasion of the surface of the conductive arm is reduced.

Furthermore, the clamping device comprises a supporting block for supporting the straight section of the conductive arm and a pressing block for pressing the straight section, wherein the supporting block and the pressing block are respectively provided with a positioning groove, and the two positioning grooves are respectively used for enabling one side of the straight section close to the device base and one side of the straight section far away from the device base to be embedded in an inosculating mode.

Has the beneficial effects that: the positioning groove is adaptive to the shape of the outer surface of the conductive arm, so that the conductive arm is prevented from moving left and right relative to the clamping device, and the supporting block and the pressing block are enabled to better compress the conductive arm.

Furthermore, the bottom of the positioning groove on the supporting block is higher than the top surface of the base of the device, and the positioning groove is used for lifting the conductive arm so that the conductive arm is spaced from the base of the clamping device.

Has the advantages that: in the process of clamping the electric conduction to the device base, only two parts of the electric conduction rod are contacted, and unnecessary abrasion caused by contact of the electric conduction arm and other parts can be avoided as much as possible.

Drawings

FIG. 1 is a schematic structural diagram of a scissors-type isolator in the prior art;

FIG. 2 is a schematic diagram of a conductive arm of a scissors-type isolator in the prior art;

fig. 3 is a front view of an embodiment 1 of the bending and shape-correcting device for the conductive arm of the middle-shear type disconnecting switch according to the present invention;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a schematic view of the structure of the base of the device of FIG. 3;

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a schematic view of the support block of FIG. 3;

FIG. 8 is a left side view of FIG. 7;

FIG. 9 is a schematic view of a pressing block in the isolating switch of the present invention;

FIG. 10 is a schematic view of the structure of the middle stem of the septum cap of the present invention;

FIG. 11 is a schematic view showing a structure of a rotary sleeve in the isolating switch according to the present invention;

FIG. 12 is a front view of the protective cap of the septum cap of the present invention;

fig. 13 is a left side view of fig. 12.

The names of the components corresponding to the corresponding reference numerals in the drawings are:

1. a conductive arm; 100. mounting a bracket; 101. a straight section; 102. bending sections; 12. an operating mechanism; 13. a conductive arm; 16. static contact; 17. a stationary contact bar; 3. a device base; 31. a long groove; 33. a pressing device fixing hole; 4. a pressure applying device; 41. a guide bar; 42. a base plate; 44. a nut fixing seat; 45. a slide plate; 46. a lead screw fixing seat; 48. a thin-walled plate; 49. a lead screw; 50. a gland; 51. a T-shaped connecting section; 52. a hand wheel; 6. a clamping device; 61. a supporting block; 62. a circular positioning groove; 63. fastening the threaded hole; 64. a support block fixing hole; 65. briquetting; 66. a circular arc-shaped groove; 7. a righting column; 8. a mandrel; 81. an outer flange; 9. a rotating sleeve; 91. the inner wall of the rotary sleeve; 10. a protective cap; 111. a clamping cavity; 112. a card interface; 113. a side cavity wall; 115. an end face cavity wall; 114. a land portion; 11. and correcting the shape quantity indicating scale.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the possible occurrence of the phrases "comprising a limited element of '8230', \8230;" 8230; "etc. does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" should be understood broadly, for example, the object provided may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model discloses well scissors formula isolator's electrically conductive arm school shape device's embodiment 1 of bending:

referring to fig. 3 and 4, the conductive arm bending and shape correcting device of the scissors type disconnecting switch comprises a device base 3, the device base 3 is of a T-shaped structure and is formed by welding channel steel, and the device base 3 is horizontally placed on the ground when in use, as shown in fig. 5 and 6. The top surface of the left end of the device base 3 is provided with a long groove 31 for installing the clamping device, the right side of the long groove 31 is provided with a fixing hole 32 for installing the clamping device, and the right end is provided with a fixing hole 33 for installing the pressure device.

As shown in fig. 3 and 4, the pressing device 4 includes four guide rods 41, the bottom ends of the four guide rods 41 are fixedly mounted on a bottom plate 42, the bottom plate 42 is fixedly mounted on the device base 3, and the upper ends of the guide rods 41 are fixedly assembled with nut fixing seats 44.

A sliding plate 45 is assembled on the guide rod 41 between the base plate 42 and the nut fixing seat 44 in a guiding manner, and the sliding plate 45 forms a screw rod fixing seat which is movably arranged along the bending direction of the bending section to reversely bend the bending section. The middle part of the sliding plate 45 is also fixedly provided with a lead screw fixing seat 46, the top end of the lead screw fixing seat 46 is provided with a thin-wall plate 48, and the thin-wall plate 48 is provided with a threaded hole for connecting a gland 50. The tail end of the screw rod 49 is provided with a T-shaped connecting section 51, and the bottom surface of the T-shaped connecting section 51 is in stop fit with the thin-wall plate 48 in the axial direction. The upper part of the T-shaped connecting section 51 is buckled with a gland 50, and the gland 50 is fixedly connected with the thin-wall plate 48 through screws, so that the screw rod 49 is in running fit with the screw rod fixing seat 46. The screw rod 49 is in threaded fit with the nut 43 arranged in the middle of the nut fixing seat 44, and the upper end of the screw rod 49 extends out of the nut fixing seat 44 and is fixedly connected with the hand wheel 52. In addition, since the sliding plate 45 is relatively heavy, two springs 53 are installed between the nut holder 44 and the sliding plate 45 to balance the weight thereof, and the springs 53 form elastic restoring members for applying an upward acting force to the screw holder 46 to offset the weight of the screw holder 46.

As shown in fig. 3, the holding device 6 includes a supporting block 61 for supporting the straight section of the conductive arm 1, and the supporting block 61 is installed at two positions on the device base 3, one position is installed at the left end of the long groove 31 of the device base 3, and the other position is installed at the middle of the long groove 31 of the device base 3.

As shown in fig. 7 and 8, the supporting block 61 is a rectangular parallelepiped block with a circular positioning slot 62, and the circular positioning slot 62 is used for the straight section 101 of the conductive arm 1 to be inserted into the side close to the device base 3. Fastening screw holes 63 for clamping the conductive arm 1 are formed in the two sides of the circular positioning groove 62 in the length direction of the supporting block 61, and supporting block fixing holes 64 which are communicated with the circular positioning groove 62 and are used for fixing the supporting block 61 on the device base 3 are formed in the bottom of the rectangular block. In other embodiments, the circular positioning slot 62 on the supporting block 61 may be configured as a square positioning slot according to the cross-sectional shape of the conductive arm.

As shown in fig. 9, the clamping device 6 further includes a pressing piece 65 for pressing the straight section 101 of the conductive arm 1, and the pressing piece 65 is disposed above the supporting block 61. One end of the pressing block 65 facing the supporting block 61 is provided with an arc-shaped groove 66 for matching and embedding one side of the straight section 101 far away from the device base 3, and two sides of the arc-shaped groove 66 in the length direction of the pressing block 65 are provided with connecting holes corresponding to the fastening threaded holes 63 of the supporting block 61. When the conductive arm 1 is clamped, the conductive arm 1 is embedded into the arc-shaped groove 66 on the supporting block 61, the outer side surface of the bottom of the conductive arm 1 is tightly attached to the inner side surface of the arc-shaped groove 66, and a bolt firstly penetrates through the connecting hole on the pressing block 65 and then is screwed into the fastening threaded hole on the supporting block, so that the conductive arm 1 can be clamped. In other embodiments, the grooves on the compacts 65 may also be square grooves, depending on the cross-sectional shape of the conductive arms.

Furthermore, as shown in fig. 3 and 4, the clamping device 6 further includes a centering column 7 extending along the deflection direction of the bending segment 102 on the conductive arm 1. As shown in fig. 10 and 11, the righting cylinder 7 includes a mandrel 8 and a rotating sleeve 9. The mandrel 8 is two optical axes with the same structure and the bottom provided with an outer flange 81, and a section of axis with the same diameter as the upper part of the outer flange 81 extends out of the lower part of the outer flange 81. The lower end shaft of the mandrel 8 is fixed in a corresponding mounting hole at the top of the base of the feeding device. At the upper end of dabber 8, the cover has the rotating sleeve 9 that the section of bending roll was supported, and rotating sleeve 9 is hollow pipe, and rotating sleeve inner wall 91 forms normal running fit with righting post 7 lateral surface, and the up end of dabber 8's outward flange 71 forms the backstop cooperation with the lower terminal surface form of rotating sleeve 9, and righting post 7 is used for spacing in order to prevent the section 102 of bending deflection of conducting tube to two corresponding lateral walls of the section 102 of bending of conducting arm 1.

As shown in fig. 3, 4, 12 and 13, the protective cap 10 is used to be buckled at the end of the bending section, the protective cap 10 corresponds to the conductive arm with the oblong cross section and is provided with a buckling cavity 111, two adjacent side surfaces of the protective cap 10 are respectively provided with a buckling interface 112 for buckling the protective cap 10 to the end of the bending section, and the protective cap has a side surface cavity wall 113 and an end surface cavity wall 115 for being abutted against the side surface of the end of the bending section. The right side edge 114 of the top of the cap 10 is pressed by the slide 45, and the edge 114 is formed by a rounded corner between two corresponding sides of the cap 10. The protection cap 10 is buckled at the end of the bending segment 102 of the conductive arm 1, so that the end of the bending segment is isolated from the screw fixing seat, thereby protecting the end of the bending segment.

As shown in fig. 6, in this embodiment, the conductive arm bending calibration device of the scissors-type disconnector further includes a calibration amount indicator scale 11. The shape correction amount indicating scale is fixedly arranged on the guide rod 41 and positioned on one side of the sliding plate 45 and used for measuring the shape correction amount of the conductive arm 1.

The utility model discloses well scissors formula isolator's electrically conductive arm bending school shape device's embodiment 2:

the present embodiment is different from embodiment 1 in that: in example 1, the clamping device was provided with two support blocks and two corresponding press plates, and the conductive arms were pressed onto the support blocks using press blocks and bolts. In the embodiment, the pressing block for pressing the conductive arm is driven by the clamping cylinder to press the conductive arm onto the supporting block.

The utility model discloses well scissors formula isolator's electrically conductive arm school shape device's embodiment 3 of bending:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the holding device holds the conductive arm in the up-down direction. In this embodiment, the clamping device clamps the conductive arm along the horizontal direction.

The utility model discloses well scissors formula isolator's electrically conductive arm school shape device's embodiment 4 of bending:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the pressing device has a lead screw fixing seat movably arranged along the bending direction of the bending section to reversely bend the bending section. In the embodiment, the pressure applying device is driven by a hydraulic mechanism, the hydraulic cylinder is fixed on the device base, and the hydraulic rod is pressed on the protective cap.

The utility model discloses well scissors formula isolator's electrically conductive arm bending school shape device's embodiment 5:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the conductive arm bending and shape correcting device further includes a protective cap fastened to the tail end of the bending section, and the protective cap is used to be isolated between the tail end of the bending section and the lead screw fixing seat to protect the tail end of the bending section. In this embodiment, the protective cap has an opening on only one side and is sleeved on the end of the whole conductive arm.

The utility model discloses well scissors formula isolator's electrically conductive arm bending school shape device's embodiment 6:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the device is provided with a shape correction amount indicating scale for measuring the shape correction amount of the conductive arm, and the shape correction amount indicating scale is arranged corresponding to the lead screw fixing seat. In this embodiment, the conductive arm bending and shape correcting device is not provided with a shape correction amount indicating scale, and a measuring scale is additionally taken for direct measurement during correction.

The utility model discloses well scissors formula isolator's electrically conductive arm school shape device's embodiment 7 of bending:

the present embodiment is different from embodiment 1 in that: in embodiment 1, a shape correction amount indicating scale for measuring a shape correction amount of the conductive arm is installed on the device, and the shape correction amount indicating scale is arranged corresponding to the lead screw fixing seat. In the embodiment, the screw-nut mechanism is driven by a servo motor, the pressing amount of the bending section is controlled by the servo motor in a digital mode, and the servo motor acts according to a received instruction to realize the corresponding pressing amount.

The utility model discloses well scissors formula isolator's electrically conductive arm bending school shape device's embodiment 8:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the centering column includes a core shaft, a rotating sleeve is rotatably sleeved on the core shaft, and the rotating sleeve is used for rolling and supporting the bending section. In the embodiment, the righting column adopts an optical axis.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, the scope of the present invention is defined by the appended claims, and all the structural changes equivalent to the content of the description and the attached drawings should be included in the same way.

Claims (10)

1. Scissors formula isolator's electrically conductive arm school shape device of bending, its characterized in that: the device comprises a device base (3), wherein a clamping device used for clamping and fixing a straight section (101) of a conductive arm (1) and enabling a bending section (102) of the conductive arm (1) to be in a suspension state is arranged on the device base (3); the device base (3) is also provided with a pressure device, and the pressure device is provided with a jacking seat which is movably arranged along the bending direction of the bending section (102) to reversely bend the bending section (102); the conductive arm bending and shape correcting device further comprises a protective cap (10) buckled at the tail end of the bending section (102), and the protective cap (10) is used for being isolated between the tail end of the bending section (102) and the jacking seat to protect the tail end of the bending section (102).

2. The conductive arm bending and shape correcting device of the scissor type disconnecting switch according to claim 1, wherein a shape correction amount indicating scale (11) for measuring the shape correction amount of the conductive arm (1) is arranged on the device, and the shape correction amount indicating scale (11) is arranged corresponding to the jacking seat.

3. A scissor disconnect switch conductive arm bend sizing device as claimed in claim 1 or 2, wherein: the protective cap (10) is provided with an edge part (114) for pressing the pressing seat, and the edge part (114) is of an arc-shaped structure formed by a rounded angle between two corresponding side surfaces on the protective cap (10).

4. A scissor disconnect switch conductive arm bend sizing device as claimed in claim 1 or 2, wherein: the pressing device comprises a lead screw nut mechanism, a lead screw (49) used for outputting linear displacement is arranged, and the jacking seat is connected to the lead screw (49) of the lead screw nut mechanism.

5. A scissor disconnect switch conductive arm bend leveling device as claimed in claim 4, wherein: the conductive arm bending and shape correcting device comprises a guide rod (41), a jacking seat is a sliding plate (45) assembled on the guide rod (41) in a guiding manner, a lead screw fixing seat (46) is arranged on the sliding plate (45), the tail end of a lead screw (49) is in rotating fit with the lead screw fixing seat (46), and an axial blocking structure is arranged between the lead screw (49) and the lead screw fixing seat (46); a nut fixing seat (44) is fixed to the top of the guide rod (41), and a nut in the lead screw and nut mechanism is fixed to the nut fixing seat (44) and forms thread transmission with a lead screw (49).

6. A scissor disconnect switch conductive arm bend leveling device as claimed in claim 5, wherein: the guide rod (41) is a vertical rod, the lead screw fixing seat (46) is assembled on the guide rod (41) along the vertical direction in a guiding mode, and an elastic reset piece used for applying upward acting force to the lead screw fixing seat (46) to offset the gravity of the lead screw fixing seat is arranged between the lead screw fixing seat (46) and the nut fixing seat (44).

7. A scissor disconnect switch conductive arm bend sizing device as claimed in claim 1 or 2, wherein: the device is characterized in that a righting column (7) extending along the deflection direction of a bending section (102) on the conductive arm (1) is further arranged on the base (3), and the righting column (7) is used for limiting two corresponding side walls of the bending section (102) so as to prevent the bending section (102) of the conductive arm (1) from deflecting.

8. A scissor disconnect switch conductive arm bend sizing device as claimed in claim 7, wherein: righting post (7) including dabber (8), rotating the cover on dabber (8) and being equipped with swivel sleeve (9), swivel sleeve (9) supply bend section (102) roll support.

9. A scissor disconnect switch conductive arm bend leveling device as claimed in claim 1 or 2, wherein: the clamping device comprises a supporting block (61) used for supporting the straight section (101) of the conductive arm (1) and a pressing block (65) used for pressing the straight section (101), positioning grooves are formed in the supporting block (61) and the pressing block (65), and the two positioning grooves are respectively used for enabling one side, close to the device base (3), of the straight section (101) and one side, far away from the device base (3), of the straight section to be embedded in an inosculated mode.

10. A scissor disconnect switch conductive arm bend sizing device as claimed in claim 9, wherein: the bottom of the locating slot on the supporting block (61) is higher than the top surface of the device base (3) and used for lifting the conductive arm (1) so that a space is reserved between the conductive arm (1) and the base of the clamping device.

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