Equal-length cutting device for bus duct processing

Through the ring structure and rotary cutting mechanism composed of the main ring and the auxiliary ring, the problems of inconsistent length and deformation of the conductive sheet after cutting of the bus trough are solved, and the precise cutting of the bus trough and the improvement of the conductive performance are achieved.

CN120480280AInactive Publication Date: 2025-08-15STU (ZHENJIANG) INTELLIGENT ELECTRIC CO LTD
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Patent Information

Application Number
CN202510749461.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2025-08-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing busbar trough cutting device easily leads to deformation when cutting the conductive sheet, affecting the connection quality between the plug and the socket, and the surface of the conductive sheet is not thoroughly cleaned after cutting, reducing the conductivity.

Method used

The ring structure consisting of the main body ring and the secondary ring is adopted, combined with the rotating cutting mechanism, the clamping moving mechanism and the electric telescopic rod, the cutting length and the flatness of the conductive sheet are accurately controlled to ensure that the length of the busbar groove after cutting is consistent, and the surface of the conductive sheet is cleaned during the cutting process.

Benefits of technology

The length of the busbar groove is consistent after cutting and the surface of the conductive sheet is flat, ensuring the accurate installation of the plug and socket, and improving the conductive performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of bus duct cutting, in particular to an equal-length cutting device for bus duct machining, which comprises a main body ring and an auxiliary ring, the main body ring and the auxiliary ring form a circular ring structure, a rotary cutting mechanism is arranged on the end surfaces of the main body ring and the auxiliary ring, and the rotary cutting mechanism comprises rotary grooves formed in the end surfaces of the main body ring and the auxiliary ring. The main body ring and the auxiliary ring are rotationally connected with a first rotating body and a second rotating body in the rotating grooves correspondingly, the outer side face of the second rotating body is fixedly connected with a first fixing body, and a second electric telescopic rod is fixedly connected into the first fixing body. And a matching ring moves to a proper position under the running fit of a threaded rod, so that the distance between two adjacent fixing rods is the same as the thickness of a single conducting strip, then the cutting disc can cut according to the thickness of a plug of the bus duct, and the generality of the device for cutting the bus duct is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of bus duct cutting, and in particular to an equal-length cutting device for processing bus ducts. Background Art

[0002] Bus duct is a closed metal device composed of copper and aluminum busbar columns. It is used to distribute large power to various components of the distributed system. It has increasingly replaced wires and cables in indoor low-voltage power transmission trunk projects. When connecting two sections of bus duct, a plug-in connection method is generally used. The plugs and sockets of the two sections of bus duct to be connected are aligned. The plug consists of several conductive plates arranged at equal distances to ensure that the plug can be accurately inserted into the socket. It is then fixed with bolts. Then, the bus ducts at both ends are cut according to the predetermined connection length during installation, and then connected after cutting to ensure that the bus duct is connected according to the predetermined set length.

[0003] The existing bus duct is fixed by a clamping mechanism before cutting, and then the end of the bus duct is precisely cut by a cutting knife. Several equally spaced conductive sheets are easily deformed during cutting, resulting in scratches when the subsequent plug and socket are matched, reducing the quality of the bus duct after cutting. The existing bus duct cutting mechanism cannot clean the surface of the conductive sheet during cutting, reducing the conductivity after the plug and socket are connected. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an equal-length cutting device for bus duct processing.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an equal-length cutting device for bus duct processing, comprising a main ring and a secondary ring, the main ring and the secondary ring forming a circular ring structure, the end faces of the main ring and the secondary ring being provided with a rotating cutting mechanism, the rotating cutting mechanism comprising a rotating groove provided on the end faces of the main ring and the secondary ring, the main ring and the secondary ring being rotatably connected with a first rotating body and a second rotating body in the rotating groove respectively, the outer side surface of the second rotating body being fixedly connected with a first fixed body, the first fixed body being fixedly connected with a second electric telescopic rod, the telescopic end portion of the second electric telescopic rod being fixedly connected with a third electric telescopic rod, the telescopic end portion of the third electric telescopic rod being fixedly connected with a second fixed body, and the inner side surfaces of the main ring and the secondary ring being provided with a clamping and moving mechanism.

[0006] Preferably, the upper end of the main ring is provided with a plurality of first placement grooves, and the main ring is fixedly connected with first electric telescopic rods in the plurality of first placement grooves respectively, and the telescopic ends of the plurality of first electric telescopic rods are fixedly connected to the lower end of the secondary ring.

[0007] Preferably, a first limiting groove is provided on the side of the second fixed body, and the second fixed body is slidably connected to several limiting bodies in the first limiting groove, and third placement grooves are respectively provided at the ends of several of the limiting bodies, and third motors are respectively fixedly connected in several of the third placement grooves, and the transmission shaft ends of several of the third motors are respectively fixedly connected to fixing rods, and the end of the fixing rod located in the middle is fixedly connected to a connecting rod, and the end of the connecting rod is fixedly connected to a cutting disk.

[0008] Preferably, several fourth placement grooves are respectively opened on the sides of several of the fixed rods, and fifth electric telescopic rods are respectively fixedly connected in several of the fourth placement grooves, and the telescopic ends of several of the fifth electric telescopic rods are respectively connected to extrusion plates through pressure sensors.

[0009] Preferably, several of the limiting bodies are respectively penetrated by a first through hole, several of the limiting bodies are respectively connected to a matching ring in the first through hole, several of the sides of the matching rings are respectively provided with a second through hole, several of the second through holes are respectively fixedly connected to a fourth electric telescopic rod, several of the telescopic ends of the fourth electric telescopic rods are respectively provided with an anti-slip sheet, a first motor is fixedly connected to the first limiting groove, a threaded rod is fixedly connected to the transmission shaft end of the first motor, and the side surfaces of the threaded rod are respectively matched with the inner side surfaces of the matching ring.

[0010] Preferably, a second placement groove is opened at the end of the main body ring, and the main body ring is fixedly connected to a second motor in the second placement groove. The transmission shaft end of the second motor is fixedly connected to a gear, and the side of the first rotating body is fixedly connected to a gear ring meshing with the gear.

[0011] Preferably, the clamping and moving mechanism includes a third empty slot opened inside the main body ring, a worm gear is equidistantly arranged in the third empty slot of the main body ring for rotation, a fourth motor is fixedly connected in the third empty slot, a drive shaft end of the fourth motor is fixedly connected to a worm engaged with the worm gear, several end faces of the worm gear are respectively fixedly connected to connecting rollers, the inner side surface of the main body ring is equidistantly provided with fifth placement slots, several side surfaces of the connecting rollers are respectively fixedly connected with transmission rollers that rotate with the fifth placement slots, and the inner side surface of the secondary ring is provided with two first empty slots.

[0012] Preferably, the secondary ring is fixedly connected to a sixth electric telescopic rod in the two first empty grooves, and the telescopic ends of the two sixth electric telescopic rods are fixedly connected to a third fixed body through a pressure sensor, and the lower ends of the two third fixed bodies are open structures, and the two third fixed bodies are rotatably connected to rollers in the opening structure.

[0013] Preferably, the inner side surface of the main body ring is symmetrically provided with second slots, a plurality of the second slots are respectively fixedly connected to the seventh electric telescopic rods, and the telescopic ends of a plurality of the seventh electric telescopic rods are fixedly connected to the anti-slip plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The fourth motor drives the worm to rotate, and the worm cooperates to drive several worm wheels to rotate, and the several worm wheels drive the transmission rollers to rotate, so that the device moves along the bus duct. When the device moves to a position close to the plug, the second electric telescopic rod extends to ensure that the distance from the cutting disc to the main ring plus the distance the device moves is equal to the predetermined installation length. At this time, the bus duct can be cut to ensure that the length of the bus duct after cutting is exactly the same as the predetermined length, thereby facilitating the subsequent installation of plugs and sockets.

[0016] 2. The second motor drives the gear to rotate, and the gear cooperates to drive the gear ring to rotate, and the gear ring drives the first rotating body to rotate, so that the upper end surface of the second fixed body rotates to a state parallel to the end surface of the busbar duct plug, ensuring that the multiple fixed rods are in parallel contact with the side of the conductive sheet. After that, the first motor is started, and the multiple fourth electric telescopic rods are extended and retracted under the control of the controller, so that the matching ring moves to a suitable position under the rotation cooperation of the threaded rod, so that the distance between the two adjacent fixed rods is the same as the thickness of a single conductive sheet. Then the cutting disk cuts the plug of the busbar duct. After cutting, the rotating fixed rod moves to the measurement of the conductive sheet. The rotating fixed rod can flatten and limit the surface of the conductive sheet to prevent the conductive sheet from deformation after cutting.

[0017] 3. The extrusion plate on the side of the fixed rod is in close contact with the surface of the conductive sheet, and the extension and contraction amount of the fifth electric telescopic rod is controlled by the pressure sensor, so that the rotating extrusion plate can clean the surface of the conductive sheet to ensure the conductivity of the conductive sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0020] Figure 3 Partial cross-sectional structure of the present invention Figure 2 ;

[0021] Figure 4 Partial cross-sectional structure of the present invention Figure 3 ;

[0022] Figure 5 Schematic diagram of part of the structure of the present invention Figure 1 ;

[0023] Figure 6 Schematic diagram of part of the structure of the present invention Figure 2 ;

[0024] Figure 7 For the present invention Figure 3 A magnified view of point A;

[0025] Figure 8 For the present invention Figure 4 Enlarged view of point B;

[0026] Figure 9 For the present invention Figure 5 Enlarged view of point C;

[0027] Figure 10 For the present invention Figure 5 Enlarged view of point D.

[0028] 1. Main ring; 2. Auxiliary ring; 3. Rotating cutting mechanism; 4. Clamping and moving mechanism; 11. First electric telescopic rod; 12. First placement slot; 31. Rotating slot; 32. First rotating body; 33. Second electric telescopic rod; 34. First fixed body; 35. Gear ring; 36. Third electric telescopic rod; 37. Second rotating body; 38. Second fixed body; 39. Connecting rod; 310. Cutting disc; 311. First limiting slot; 312. First motor; 313. Threaded rod; 314. Fixed rod; 315. Second placement slot; 316. Second motor; 317. Gear; 318. Limiting body ; 319, first through hole; 320, matching ring; 321, second through hole; 322, fourth electric telescopic rod; 323, third placement slot; 324, third motor; 325, fourth placement slot; 326, fifth electric telescopic rod; 327, extrusion plate; 41, fifth placement slot; 42, transmission roller; 43, connecting roller; 44, first empty slot; 45, sixth electric telescopic rod; 46, third fixed body; 47, roller; 48, second empty slot; 49, seventh electric telescopic rod; 410, anti-skid plate; 411, third empty slot; 412, worm; 413, fourth motor; 414, worm gear. DETAILED DESCRIPTION

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0030] See also Figures 1-10 , an equal-length cutting device for bus duct processing, including a main ring 1 and a secondary ring 2, the main ring 1 and the secondary ring 2 form a circular ring structure, and the end faces of the main ring 1 and the secondary ring 2 are provided with a rotating cutting mechanism 3.

[0031] In this embodiment, the rotating cutting mechanism 3 includes a rotating groove 31 opened on the end faces of the main ring 1 and the auxiliary ring 2, and the main ring 1 and the auxiliary ring 2 are respectively rotatably connected with a first rotating body 32 and a second rotating body 37 in the rotating groove 31, and the outer side surface of the second rotating body 37 is fixedly connected to a first fixed body 34, and a second electric telescopic rod 33 is fixedly connected to the inside of the first fixed body 34, and the telescopic end of the second electric telescopic rod 33 is fixedly connected to a third electric telescopic rod 36, and the telescopic end of the third electric telescopic rod 36 is fixedly connected to a second fixed body 38.

[0032] The upper end of the main ring 1 is provided with a plurality of first placement grooves 12 , and the main ring 1 is fixedly connected with first electric telescopic rods 11 in the plurality of first placement grooves 12 , and the telescopic ends of the plurality of first electric telescopic rods 11 are fixedly connected to the lower end of the secondary ring 2 .

[0033] A first limiting groove 311 is provided on the side of the second fixed body 38, and the second fixed body 38 is slidably connected to a plurality of limiting bodies 318 in the first limiting groove 311, and a third placement groove 323 is provided at the ends of the plurality of limiting bodies 318 respectively, and a third motor 324 is fixedly connected in the plurality of third placement grooves 323 respectively, and the transmission shaft ends of the plurality of third motors 324 are fixedly connected to the fixing rod 314 respectively, and the end of the fixing rod 314 located in the middle is fixedly connected to the connecting rod 39, and the end of the connecting rod 39 is fixedly connected to the cutting disk 310.

[0034] Several fourth placement grooves 325 are respectively opened on the side surfaces of several of the fixed rods 314, and several fifth electric telescopic rods 326 are respectively fixedly connected in several of the fourth placement grooves 325. The telescopic ends of several of the fifth electric telescopic rods 326 are respectively connected to the extrusion plates 327 through pressure sensors.

[0035] A first through hole 319 is respectively opened through several of the limiting bodies 318, and a matching ring 320 is connected to several of the limiting bodies 318 in the first through hole 319. A second through hole 321 is respectively opened on the side of several of the matching rings 320, and a fourth electric telescopic rod 322 is fixedly connected to several of the second through holes 321. The telescopic ends of several of the fourth electric telescopic rods 322 are respectively provided with anti-slip sheets. The first limiting groove 311 is fixedly connected to the first motor 312, and the transmission shaft end of the first motor 312 is fixedly connected to the threaded rod 313, and the side surfaces of the threaded rod 313 are respectively matched with the inner side surfaces of the matching ring 320.

[0036] A second placement groove 315 is provided at the end of the main body ring 1, and a second motor 316 is fixedly connected to the main body ring 1 in the second placement groove 315. The transmission shaft end of the second motor 316 is fixedly connected to a gear 317, and the side of the first rotating body 32 is fixedly connected to a gear ring 35 that is meshed with the gear 317.

[0037] Specifically, the second motor 316 drives the gear 317 to rotate, the gear 317 cooperates to drive the gear ring 35 to rotate, and the gear ring 35 drives the first rotating body 32 to rotate, so that the upper end face of the second fixed body 38 rotates to a state parallel to the end face of the busbar trough plug, ensuring that several fixed rods 314 are in parallel contact with the side of the conductive sheet. After that, the first motor 312 is started, and several fourth electric telescopic rods 322 are extended and retracted under the control of the controller, so that the mating ring 320 moves to the appropriate position under the rotation cooperation of the threaded rod 313, so that the distance between two adjacent fixed rods 314 is the same as the thickness of a single conductive sheet.

[0038] In this embodiment, a clamping and moving mechanism 4 is provided on the inner side surfaces of the main ring 1 and the auxiliary ring 2 .

[0039] The clamping and moving mechanism 4 includes a third empty slot 411 opened inside the main ring 1, and the main ring 1 is provided with a worm gear 414 equidistantly rotating in the third empty slot 411, and a fourth motor 413 is fixedly connected in the third empty slot 411, and the transmission shaft end of the fourth motor 413 is fixedly connected to a worm 412 meshing with the worm gear 414, and several end faces of the worm gear 414 are respectively fixedly connected to connecting rollers 43, and the inner side surface of the main ring 1 is provided with fifth placement slots 41 at equal intervals, and the side surfaces of several connecting rollers 43 are respectively fixedly connected with transmission rollers 42 that rotate with the fifth placement slot 41, and the inner side surface of the secondary ring 2 is provided with two first empty slots 44.

[0040] The secondary ring 2 is fixedly connected to the two first empty slots 44 with sixth electric telescopic rods 45 respectively. The telescopic ends of the two sixth electric telescopic rods 45 are fixedly connected to third fixed bodies 46 respectively through pressure sensors. The lower ends of the two third fixed bodies 46 are open structures, and the two third fixed bodies 46 are rotatably connected to rollers 47 in the opening structures.

[0041] The inner side surface of the main body ring 1 is symmetrically provided with second slots 48 , and a plurality of the second slots 48 are fixedly connected to seventh electric telescopic rods 49 , and a plurality of the telescopic ends of the seventh electric telescopic rods 49 are fixedly connected to anti-slip plates 410 .

[0042] Specifically, several sixth electric telescopic rods 45 are extended so that several rollers 47 contact the upper end surface of the square bus duct. Then the fourth motor 413 is started, and the fourth motor 413 drives the worm 412 to rotate. The worm 412 cooperates to drive several worm gears 414 to rotate, and the several worm gears 414 drive the transmission roller 42 to rotate, so that the device moves along the bus duct.

[0043] During use, the first electric telescopic rod 11 is extended to place the bus duct on the inner side of the main body ring 1, and then the first electric telescopic rod 11 is retracted, and several sixth electric telescopic rods 45 are extended at the same time, so that several rollers 47 contact the upper end surface of the square bus duct, and then the fourth motor 413 is started, and the fourth motor 413 drives the worm 412 to rotate, and the worm 412 cooperates to drive several worm gears 414 to rotate, and several worm gears 414 drive the transmission roller 42 to rotate, so that the device moves along the bus duct. When the device moves to a position close to the plug, the second electric telescopic rod 33 is extended to ensure that the distance from the cutting disk 310 to the main body ring 1 plus the distance the device moves is equal to the predetermined installation length. At this time, cutting the bus duct can ensure that the length of the bus duct after cutting is exactly the same as the predetermined length, thereby facilitating the subsequent installation of plugs and sockets. After that, the seventh electric telescopic rod 49 is extended, and the side of the bus duct is squeezed and fixed by the anti-slip plate 410.

[0044] When the bus duct is cut, the third electric telescopic rod 36 is extended, and the third motor 324 is started at the same time. The third motor 324 drives the cutting disc 310 to rotate through the fixed rod 314, and moves toward the bus duct under the drive of the third electric telescopic rod 36. At this time, the second motor 316 is started, and the second motor 316 drives the gear 317 to rotate. The gear 317 cooperates to drive the gear ring 35 to rotate, and the gear ring 35 drives the first rotating body 32 to rotate, so that the upper end face of the second fixed body 38 rotates to a state parallel to the end face of the bus duct plug, ensuring that several fixed rods 314 are in parallel contact with the side of the conductive sheet. After that, the first motor 312 is started, and several fourth electric telescopic rods 322 are extended and retracted under the control of the controller, so that the matching ring 320 moves to a suitable position under the rotation cooperation of the threaded rod 313, so that the distance between two adjacent fixed rods 314 is the same as the thickness of a single conductive sheet. Then the cutting disk 310 cuts the plug of the bus duct. After cutting, the rotating fixed rod 314 moves to the measurement of the conductive sheet. The rotating fixed rod 314 can flatten and limit the surface of the conductive sheet to prevent the conductive sheet from being deformed after cutting, thereby ensuring that the plug of the bus duct can be accurately installed with the socket after cutting.

[0045] When the fixed rod 314 rotates and moves on the side of the conductive sheet, the extrusion plate 327 on the side of the fixed rod 314 is in close contact with the surface of the conductive sheet, and the extension and contraction amount of the fifth electric telescopic rod 326 is controlled by the pressure sensor, so that the rotating extrusion plate 327 can clean the surface of the conductive sheet to ensure the conductive ability of the conductive sheet.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A bus duct cutting device for equal length cutting, comprising a main ring (1) and a secondary ring (2), characterized in that: The main ring (1) and the auxiliary ring (2) form a circular ring structure. The end faces of the main ring (1) and the auxiliary ring (2) are provided with a rotating cutting mechanism (3). The rotating cutting mechanism (3) includes a rotating groove (31) opened on the end faces of the main ring (1) and the auxiliary ring (2). The main ring (1) and the auxiliary ring (2) are respectively rotatably connected with a first rotating body (32) and a second rotating body (37) in the rotating groove (31). The outer side surface of the second rotating body (37) is fixedly connected with a first fixed body (34). The first fixed body (34) is fixedly connected with a second electric telescopic rod (33). The telescopic end of the second electric telescopic rod (33) is fixedly connected with a third electric telescopic rod (36). The telescopic end of the third electric telescopic rod (36) is fixedly connected with a second fixed body (38). The inner side surfaces of the main ring (1) and the auxiliary ring (2) are provided with a clamping and moving mechanism (4).

2. The equal-length cutting device for bus duct processing according to claim 1, characterized in that: The upper end of the main body ring (1) is provided with a plurality of first placement grooves (12), and the main body ring (1) is fixedly connected with first electric telescopic rods (11) in the plurality of first placement grooves (12), and the telescopic ends of the plurality of first electric telescopic rods (11) are fixedly connected to the lower end of the auxiliary ring (2).

3. The equal-length cutting device for bus duct processing according to claim 1, characterized in that: A first limiting groove (311) is provided on the side of the second fixed body (38), and the second fixed body (38) is slidably connected to a plurality of limiting bodies (318) in the first limiting groove (311). The ends of the plurality of limiting bodies (318) are respectively provided with third placement grooves (323), and a third motor (324) is fixedly connected in the plurality of third placement grooves (323). The transmission shaft ends of the plurality of third motors (324) are respectively fixedly connected to a fixing rod (314), and the end of the fixing rod (314) located in the middle is fixedly connected to a connecting rod (39), and the end of the connecting rod (39) is fixedly connected to a cutting disc (310).

4. The equal-length cutting device for bus duct processing according to claim 3, characterized in that: Several fourth placement slots (325) are respectively provided on the side surfaces of the plurality of fixed rods (314), and fifth electric telescopic rods (326) are respectively fixedly connected in the plurality of fourth placement slots (325), and the telescopic ends of the plurality of fifth electric telescopic rods (326) are respectively connected to extrusion plates (327) via pressure sensors.

5. The equal-length cutting device for bus duct processing according to claim 3, characterized in that: A first through hole (319) is respectively opened in a plurality of the limiting bodies (318), a matching ring (320) is respectively connected in the first through hole (319), a second through hole (321) is respectively opened on the side of a plurality of the matching rings (320), a fourth electric telescopic rod (322) is respectively fixedly connected in a plurality of the second through holes (321), and a non-slip sheet is respectively provided at the telescopic end of a plurality of the fourth electric telescopic rods (322), a first motor (312) is fixedly connected in the first limiting groove (311), a threaded rod (313) is fixedly connected to the transmission shaft end of the first motor (312), and the side surfaces of the threaded rod (313) are respectively matched with the inner side surfaces of the matching ring (320).

6. The equal-length cutting device for bus duct processing according to claim 1, characterized in that: A second placement groove (315) is provided at the end of the main body ring (1), and a second motor (316) is fixedly connected to the main body ring (1) in the second placement groove (315). A gear (317) is fixedly connected to the transmission shaft end of the second motor (316), and a gear ring (35) meshing with the gear (317) is fixedly connected to the side surface of the first rotating body (32).

7. The equal-length cutting device for bus duct processing according to claim 1, characterized in that: The clamping and moving mechanism (4) includes a third slot (411) provided inside the main ring (1), a worm gear (414) equidistantly arranged in the third slot (411) of the main ring (1), a fourth motor (413) fixedly connected in the third slot (411), a worm (412) meshing with the worm gear (414) fixedly connected to the transmission shaft end of the fourth motor (413), a connecting roller (43) fixedly connected to the end faces of several worm gears (414), a fifth placement slot (41) equidistantly provided on the inner side surface of the main ring (1), a transmission roller (42) rotatably matched with the fifth placement slot (41) fixedly connected to the side surfaces of several connecting rollers (43), and two first slots (44) provided on the inner side surface of the auxiliary ring (2).

8. The equal-length cutting device for bus duct processing according to claim 7, characterized in that: The secondary ring (2) is fixedly connected to a sixth electric telescopic rod (45) in two first slots (44), and the telescopic ends of the two sixth electric telescopic rods (45) are fixedly connected to a third fixed body (46) via a pressure sensor. The lower ends of the two third fixed bodies (46) are open structures, and the two third fixed bodies (46) are rotatably connected to rollers (47) in the open structures.

9. The equal-length cutting device for bus duct processing according to claim 7, characterized in that: The inner side surface of the main body ring (1) is symmetrically provided with second slots (48), and a plurality of the second slots (48) are respectively fixedly connected to seventh electric telescopic rods (49), and the telescopic ends of a plurality of the seventh electric telescopic rods (49) are fixedly connected to anti-slide plates (410).