Cable bridge cutting device for electrical engineering installation

Abstract

The invention relates to the technical field of electrical engineering, in particular to a cable bridge cutting device for electrical engineering installation, which comprises a fixed bracket, a clamping assembly is arranged on the fixed bracket, and the clamping assembly comprises two groups of first clamping pattern plates which are symmetrically distributed; the cutting assembly is arranged on the fixed bracket, is used for cutting the cable bridge, and comprises a cutting bracket; the polishing assembly is used for polishing the notch of the cable bridge and comprises a polishing roller which is rotationally arranged; a second motor and a first transmission lead screw drive a storage plate to move to the position below the side wall of one side of the cable bridge, then a fourth motor is started to drive two sets of grinding rollers to rotate to be perpendicular to the side wall of the cable bridge, then through lifting of a second electric telescopic rod, the two sets of grinding rollers are located on the two sides of the side wall of the cable bridge, and then a fifth motor is started to grind the cable bridge. And a fifth motor drives grinding rollers to rotate to grind the side wall of the cable bridge to the corner, and through rotation of a fourth motor, the two sets of grinding rollers are driven to conduct angle adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical engineering, and particularly to a cable tray cutting device for electrical engineering installation. Background Technique

[0002] A rigid structure system composed of straight sections, elbows, tees, crosses of trough type, tray type or ladder type, as well as brackets (arm type brackets), hangers, etc., which closely supports cables, is called a cable tray;

[0003] During the installation process of electrical engineering, a large number of cable trays are required. To adapt to the actual installation positions at the construction site, it is often necessary to cut and trim the cable trays. In the prior art, a utility model of China with the publication number CN221291510U discloses a cutting machine for the production of fiberglass trays, which relates to the technical field of metal cutting. It includes a workbench. A supporting plate is fixedly connected to the front part on the right side of the workbench. A motor is fixedly installed at the top of the supporting plate. The output end of the motor penetrates through the right side of the workbench and is fixedly connected to a main shaft. A conveyor belt is sleeved on the surface of the main shaft. The output end of the limiting electric push rod is fixedly connected to a limiting plate. A second sliding plate is slidably connected to the surface of the second slide rail. The output end of the second electric push rod is fixedly connected to a supporting plate. At least one guiding groove is opened on the upper surface of the supporting plate. At least one clamping plate is slidably connected to the guiding groove. This fiberglass ladder-type tray cutting machine limits the fiberglass tray that tilts in position during the conveying process by setting a limiting plate, and sets a second sliding plate and a second electric push rod to facilitate clamping of fiberglass trays of different specifications;

[0004] In the above technology, the fiberglass tray that tilts in position during the conveying process is limited by setting a limiting plate. However, the fiberglass tray is composed of glass fiber reinforced plastic, flame retardant and other materials, and is then pressed by a composite molding material with a stainless steel shielding net clamped. The two side edges of the tray have convex edges to facilitate snap connection with the cover plate. During the clamping process of the existing positioning clamping plate, the pressing clamping plate first contacts the convex edge part, which is likely to cause deformation of the tray; in addition, when cutting the trough body of the fiberglass tray, a large number of burrs will appear at the cut edge of the fiberglass tray trough body. After cutting, it is also necessary to manually polish the burrs at the fracture of the fiberglass tray trough body, and the steps are cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to provide a cable tray cutting device for electrical engineering installation to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A cable tray cutting device for electrical engineering installation includes:

[0008] Fixed bracket, a clamping component is arranged on the fixed bracket for clamping the cable tray trough body, and the clamping component includes two groups of first clamping striated plates symmetrically distributed;

[0009] Cutting component, arranged on the fixed bracket for cutting the cable tray trough body, the cutting component includes a cutting bracket, a cutting motor is slidably arranged on the cutting bracket, and a cutting blade is installed at the output end of the cutting motor;

[0010] Grinding component, used for grinding the cut of the cable tray trough body, the grinding component includes a rotatably arranged grinding roller.

[0011] Preferably, a limiting groove is opened at the upper end of the fixed bracket, a first double-headed lead screw is rotatably arranged inside the limiting groove, a first motor is installed on the side wall of the fixed bracket corresponding to one end of the first double-headed lead screw, and one end of the first double-headed lead screw passes through the side wall of the fixed bracket and is connected to the output end of the first motor;

[0012] Two groups of symmetrically distributed limiting blocks are slidably arranged inside the limiting groove, and both groups of limiting blocks are screwed to the first double-headed lead screw;

[0013] The upper ends of two groups of symmetrically distributed limiting blocks are respectively connected with a group of first clamping striated plates, and the two groups of first clamping striated plates approach or move away from each other through the cooperation of the limiting blocks and the first double-headed lead screw.

[0014] Preferably, two groups of first sliding grooves are opened at the upper end of the fixed bracket, and the two groups of first sliding grooves are symmetrically distributed with the limiting block as the center;

[0015] Two groups of symmetrically distributed first sliding blocks are slidably arranged inside the two groups of first sliding grooves, and the two groups of first sliding blocks inside each first sliding groove are respectively connected to the lower ends of the corresponding first clamping striated plates.

[0016] Preferably, a first through groove is opened at the upper end of the fixed bracket corresponding to the positions of the two groups of first clamping striated plates, and the first through groove penetrates through the fixed bracket;

[0017] A second through groove is opened at the upper end of the fixed bracket corresponding to the side of the cutting bracket away from the first clamping striated plate, and the second through groove penetrates through the fixed bracket;

[0018] Two groups of second clamping striated plates are symmetrically arranged at the upper end of the fixed bracket corresponding to the position of the second through groove, and the two groups of second clamping striated plates and the two groups of first clamping striated plates are on the same axis;

[0019] A connecting rod is provided between the two groups of the second clamping pattern plates and the corresponding first clamping pattern plates, and the second clamping pattern plates are connected to the corresponding first clamping pattern plates through the connecting rod.

[0020] Preferably, a groove is provided on the lower end surface of the top of the cutting bracket, a second transmission screw is rotatably arranged inside the groove, a third motor is installed at a position of the side wall of the cutting bracket corresponding to the position of the second transmission screw, and one end of the second transmission screw passes through the side wall of the cutting bracket and is connected to the output end of the third motor;

[0021] A first connecting block is slidably disposed inside the groove, the first connecting block is threadedly connected to the second transmission screw, and a first electric telescopic rod is installed on the lower end surface of the first connecting block, and the output end of the first electric telescopic rod is connected to the cutting motor.

[0022] Preferably, a clearance groove is provided on the upper end surface of the fixed bracket at a position corresponding to the cutting blade, a first transmission screw is rotatably provided at the inner bottom end of the clearance groove, a second motor is installed at a position corresponding to the clearance groove on the side wall of the fixed bracket, and one end of the clearance groove passes through the side wall of the fixed bracket and is connected to the output end of the second motor;

[0023] A second connecting block is slidably disposed inside the clearance groove, and the second connecting block is screwed to the first transmission screw rod;

[0024] The lower end of the second connecting block is provided with two groups of second sliding grooves which are symmetrically distributed, and the inner bottom end of the giving way groove is provided with two groups of second sliding blocks which are symmetrically distributed at positions corresponding to the two groups of second sliding grooves.

[0025] Preferably, a second electric telescopic rod is installed on the upper end surface of the second connecting block, an output end of the second electric telescopic rod is connected to a storage plate, and a vertical plate is installed on the upper end surface of the storage plate;

[0026] A fourth motor is installed at the center of a side wall of one side of the vertical plate, and an output end of the fourth motor passes through the side wall of the vertical plate and is connected to a fixing plate;

[0027] Two groups of symmetrically distributed fifth motors are installed on one side wall of the fixed plate, and the output ends of the two groups of the fifth motors pass through the side wall of the fixed plate and are connected to the ends of the two groups of grinding rollers.

[0028] Preferably, the outer surface of each grinding roller is provided with a plurality of groups of circumferentially distributed receiving grooves, and a grinding plate is arranged inside each receiving groove;

[0029] A supporting assembly is arranged inside the grinding roller for supporting each of the grinding plates outwardly.

[0030] Preferably, a cavity is provided inside each of the grinding rollers, and the support assembly is arranged inside the cavity;

[0031] The support assembly includes a second double-headed screw rod rotatably arranged inside the cavity. Symmetrically distributed two groups of third connecting blocks are screwed on the outer surface of the second double-headed screw rod. At the positions corresponding to each grinding plate on the outer surfaces of the two groups of third connecting blocks, corresponding hinge rods are hinged. One end of each hinge rod away from the third connecting block is hinged to the lower end surface of the corresponding grinding plate;

[0032] One end of the second double-headed screw rod passes through the side wall of the grinding roller and is connected with a hand wheel.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] Through the cooperation of the first clamping striated plate and the second clamping striated plate, the cable tray trough body is clamped, and then the cable tray trough body is cut by the cutting piece. After the cutting is completed, the placing plate is driven by the second motor and the first transmission screw rod to move to the lower side of one side wall of the cable tray trough body. Then, the fourth motor is started to drive the two grinding rollers to rotate to a state perpendicular to the side wall of the cable tray trough body. Then, through the lifting of the second electric telescopic rod, the two grinding rollers are located on both sides of the side wall of the cable tray trough body. Then, the fifth motor is started, and the fifth motor drives the grinding rollers to rotate to grind the side wall of the cable tray trough body. When grinding to the corner, through the rotation of the fourth motor, the two grinding rollers are driven to adjust the angle;

[0035] Rotate the hand wheel, the hand wheel drives the second double-headed screw rod to rotate, and the rotating second double-headed screw rod drives the two groups of third connecting blocks to approach each other. Then, through the cooperation of the hinge rods, the grinding plates are pushed out from the storage grooves, so as to adjust the diameter of the grinding rollers, enabling the grinding rollers to grind cable tray trough bodies with different thicknesses. Description of the Drawings

[0036] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0037] Figure 2 is a schematic cross-sectional view of the connection between the fixed bracket and the first clamping striated plate of the present invention;

[0038] Figure 3 is Figure 2 a schematic enlarged view of the structure at A in

[0039] Figure 4 is Figure 2 a schematic enlarged view of the structure at B in

[0040] Figure 5 is a schematic diagram of the connection between the cutting bracket and the first connecting block of the present invention;

[0041] Figure 6 for Figure 2 A magnified schematic diagram of the structure at C in the middle;

[0042] Figure 7 It is a schematic diagram of the structure of the grinding assembly of the present invention;

[0043] Figure 8 It is a schematic diagram of the internal structure of the grinding roller of the present invention;

[0044] Figure 9 It is a schematic cross-sectional view of the grinding roller structure of the present invention.

[0045] In the figure:

[0046] 1. Fixed bracket; 2. First clamping pattern plate; 3. Cutting bracket; 4. Second clamping pattern plate; 5. First motor; 6. Second motor; 7. Cutting blade; 8. First slide groove; 9. First slider; 10. First through groove; 11. Connecting rod; 12. Limiting groove; 13. Limiting block; 14. First double-headed screw rod; 15. Cutting motor; 16. Second through groove; 17. Make way groove; 18. Second slider; 19. First transmission screw rod; 20. Groove; 2 1. First connecting block; 22. Second transmission screw rod; 23. Third motor; 24. First electric telescopic rod; 25. Second connecting block; 26. Second electric telescopic rod; 27. Storage plate; 28. Vertical plate; 29. ​​Fixed plate; 30. Grinding roller; 31. Fourth motor; 32. Fifth motor; 33. Grinding plate; 34. Storage slot; 36. Second double-headed screw rod; 37. Third connecting block; 38. Articulated rod; 39. Hand wheel; 40. Second slide slot. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0049] like Figures 1-9 As shown, the present application provides a cable tray cutting device for electrical engineering installation, comprising: a fixed bracket 1, on which a clamping assembly is arranged for clamping the cable tray, and the clamping assembly comprises two groups of first clamping pattern plates 2 that are symmetrically distributed;

[0050] In this embodiment: the cable tray trough is clamped and fixed by the clamping assembly to prevent the displacement of the cable tray trough during the cutting process.

[0051] Specifically, as Figures 1-3 shown, a limiting groove 12 is opened at the upper end of the fixing bracket 1, a first double-headed lead screw 14 is rotatably arranged inside the limiting groove 12, a first motor 5 is installed on the side wall of the fixing bracket 1 corresponding to one end of the first double-headed lead screw 14, and one end of the first double-headed lead screw 14 passes through the side wall of the fixing bracket 1 and is connected to the output end of the first motor 5;

[0052] Two groups of symmetrically distributed limiting blocks 13 are slidably arranged inside the limiting groove 12, and both groups of limiting blocks 13 are screwed to the first double-headed lead screw 14;

[0053] The upper ends of the two groups of symmetrically distributed limiting blocks 13 are respectively connected with a group of first clamping plates 2, and the two groups of first clamping plates 2 approach or move away from each other through the cooperation of the limiting blocks 13 and the first double-headed lead screw 14;

[0054] In this embodiment: start the first motor 5, the first motor 5 drives the first double-headed lead screw 14 to rotate, when the first double-headed lead screw 14 rotates, the two groups of limiting blocks 13 drive the two groups of first clamping plates 2 to approach each other to clamp the cable tray trough.

[0055] Specifically, as Figures 1-3 shown, two groups of first sliding grooves 8 are opened at the upper end of the fixing bracket 1, and the two groups of first sliding grooves 8 are symmetrically distributed with the limiting blocks 13 as the center;

[0056] Two groups of symmetrically distributed first sliding blocks 9 are slidably arranged inside the two groups of first sliding grooves 8, and the two groups of first sliding blocks 9 inside each first sliding groove 8 are respectively connected to the lower ends of the corresponding first clamping plates 2;

[0057] In this embodiment: through the cooperation of the first sliding groove 8 and the first sliding block 9, the limiting and guiding of the slidably arranged first clamping plate 2 is realized.

[0058] Specifically, as Figures 3-4 shown, a first through groove 10 is opened at the upper end of the fixing bracket 1 corresponding to the positions of the two groups of first clamping plates 2, and the first through groove 10 penetrates through the fixing bracket 1;

[0059] A second through groove 16 is opened at the upper end of the fixing bracket 1 corresponding to the side of the cutting bracket 3 away from the first clamping plate 2, and the second through groove 16 penetrates through the fixing bracket 1;

[0060] Two groups of second clamping plates 4 are arranged symmetrically at the upper end of the fixing bracket 1 corresponding to the position of the second through groove 16, and the two groups of second clamping plates 4 and the two groups of first clamping plates 2 are on the same axis;

[0061] A connecting rod 11 is arranged between two groups of second clamping battens 4 and corresponding first clamping battens 2, and the second clamping batten 4 is connected to the corresponding first clamping batten 2 through the connecting rod 11;

[0062] On the side walls of two groups of second clamping battens 4 and two groups of first clamping battens 2 close to each other, grooves are provided, and the grooves correspond to the protrusions on the cable tray trough body.

[0063] In this embodiment: Through the connecting rod 11, the connection between the first clamping batten 2 and the second clamping batten 4 is realized. When the first clamping batten 2 is adjusted, the second clamping batten 4 moves synchronously. Therefore, the cable tray trough bodies on both sides of the cutting bracket 3 can be clamped. When the cutting blade 7 cuts the cable tray trough body, the cut cable tray trough body is clamped by the second clamping batten 4 and will not displace.

[0064] Specifically, as Figure 5 shown, a groove 20 is provided on the lower end face of the top of the cutting bracket 3. A second transmission lead screw 22 is rotatably arranged inside the groove 20. A third motor 23 is installed on the side wall of the cutting bracket 3 corresponding to the position of the second transmission lead screw 22. One end of the second transmission lead screw 22 passes through the side wall of the cutting bracket 3 and is connected to the output end of the third motor 23;

[0065] A first connection block 21 is slidably arranged inside the groove 20. The first connection block 21 is screwed to the second transmission lead screw 22, and a first electric telescopic rod 24 is installed on the lower end face of the first connection block 21. The output end of the first electric telescopic rod 24 is connected to the cutting motor 15;

[0066] In this embodiment: When the cutting motor 15 is started, the cutting motor 15 drives the cutting blade 7 to rotate to cut the cable tray trough body. During the cutting process, the first electric telescopic rod 24 is started, and the first electric telescopic rod 24 pushes the cutting blade 7 downward to perform vertical cutting on the cable tray trough body;

[0067] When the third motor 23 is started, the third motor 23 drives the second transmission lead screw 22 to rotate, and the first connection block 21 screwed on the second transmission lead screw 22 can drive the cutting blade 7 to move left and right to perform horizontal cutting on the cable tray trough body.

[0068] Specifically, as Figures 6-7 shown, a relief groove 17 is provided on the upper end face of the fixed bracket 1 corresponding to the position of the cutting blade 7. A first transmission lead screw 19 is rotatably arranged at the bottom end inside the relief groove 17. A second motor 6 is installed on the side wall of the fixed bracket 1 corresponding to the position of the relief groove 17. One end of the relief groove 17 passes through the side wall of the fixed bracket 1 and is connected to the output end of the second motor 6;

[0069] A second connecting block 25 is slidably disposed inside the clearance groove 17, and the second connecting block 25 is screwed to the first transmission screw rod 19;

[0070] The lower end of the second connecting block 25 is provided with two sets of second sliding grooves 40 which are symmetrically distributed, and the inner bottom end of the giving way groove 17 is provided with two sets of second sliding blocks 18 which are symmetrically distributed at the positions corresponding to the two sets of second sliding grooves 40;

[0071] In this embodiment: the second motor 6 is started, and the second motor 6 drives the first transmission screw 19 to rotate. At this time, the second connecting block 25, with the cooperation of the second slider 18 and the second slide groove 40, drives the grinding roller 30 to move inside the give way groove 17, so that the grinding roller 30 is moved to the bottom of the cable tray groove body.

[0072] Specifically, Figure 7 As shown, a second electric telescopic rod 26 is installed on the upper end surface of the second connecting block 25, an output end of the second electric telescopic rod 26 is connected to a storage plate 27, and a vertical plate 28 is installed on the upper end surface of the storage plate 27;

[0073] A fourth motor 31 is installed at the center of one side wall of the vertical plate 28, and an output end of the fourth motor 31 passes through the side wall of the vertical plate 28 and is connected to the fixing plate 29;

[0074] Two groups of symmetrically distributed fifth motors 32 are installed on one side wall of the fixed plate 29 . The output ends of the two groups of fifth motors 32 penetrate the side wall of the fixed plate 29 and are connected to the ends of the two groups of grinding rollers 30 .

[0075] In this embodiment: the grinding roller 30 is driven upward by the second electric telescopic rod 26 so that the grinding roller 30 can contact the cutout of the cable tray trough body, and then the fifth motor 32 is started, and the fifth motor 32 drives the grinding roller 30 to rotate, and grinds the side wall of the cable tray trough body to the corner, and the rotation of the fourth motor 31 drives the two groups of grinding rollers 30 to adjust the angle.

[0076] Specifically, Figures 8-9 As shown, the outer surface of each grinding roller 30 is provided with a plurality of groups of receiving grooves 34 distributed in a circumferential manner, and a grinding plate 33 is arranged inside each receiving groove 34;

[0077] A support assembly is provided inside the grinding roller 30 for supporting each grinding plate 33 outwardly;

[0078] Each of the grinding rollers 30 is provided with a cavity inside, and the support assembly is arranged inside the cavity;

[0079] The support assembly includes a second double-ended screw 36 rotatably arranged inside the cavity, the outer surface of the second double-ended screw 36 is screwed with two groups of third connecting blocks 37 symmetrically distributed, the outer surfaces of the two groups of the third connecting blocks 37 are hinged with corresponding hinged rods 38 at positions corresponding to the grinding plates 33, and one end of each hinged rod 38 away from the third connecting block 37 is hinged to the lower end surface of the corresponding grinding plate 33;

[0080] One end of the second double-ended screw 36 passes through the side wall of the grinding roller 30 and is connected to a hand wheel 39;

[0081] In this embodiment: the handwheel 39 is rotated, and the handwheel 39 drives the second double-headed screw 36 to rotate. The rotating second double-headed screw 36 drives the two groups of third connecting blocks 37 to approach each other, and then the grinding plate 33 is pushed out from the inside of the storage groove 34 through the cooperation of the hinge rod 38, thereby adjusting the diameter of the grinding roller 30 so that the grinding roller 30 can grind cable tray grooves of different thicknesses.

[0082] The specific scheme is as follows: the cable tray trough is placed between the two groups of first clamping pattern plates 2, and the position to be cut is located below the cutting blade 7. At this time, the first motor 5 is started, and the first motor 5 drives the first double-headed screw 14 to rotate. When the first double-headed screw 14 rotates, the two groups of limit blocks 13 drive the two groups of first clamping pattern plates 2 to approach each other. When the two groups of first clamping pattern plates 2 are close to each other, the second clamping pattern plates 4 are driven to approach each other through the cooperation of the connecting rod 11 to clamp the cable tray trough;

[0083] Then the cutting motor 15 is started, and the cutting blade 7 is driven to rotate by the cutting motor 15, and then the cable tray slot body is cut through the cooperation of the third motor 23 and the first electric telescopic rod 24. After the cutting is completed, the end to be polished is placed above the make way slot 17, and then the second motor 6 is started, and the second motor 6 drives the first transmission screw 19 to rotate. At this time, the second connecting block 25 drives the polishing roller 30 to move inside the make way slot 17 under the cooperation of the second slider 18 and the second slide slot 40, so that the polishing roller 30 is displaced to the bottom of the cable tray slot body, and the polishing roller 30 is driven to move upward through the second electric telescopic rod 26, so that the polishing roller 30 can contact the incision of the cable tray slot body, and then the fifth motor 32 is started, and the fifth motor 32 drives the polishing roller 30 to rotate, and the side wall of the cable tray slot body is polished to the corner. The two sets of polishing rollers 30 are driven to adjust the angle through the rotation of the fourth motor 31;

[0084] The handwheel 39 is turned, and the handwheel 39 drives the second double-headed screw 36 to rotate. The rotating second double-headed screw 36 drives the two groups of third connecting blocks 37 to approach each other. Then, through the cooperation of the hinged rod 38, the grinding plate 33 is pushed out from the inside of the storage groove 34, thereby adjusting the diameter of the grinding roller 30 so that the grinding roller 30 can grind cable tray grooves of different thicknesses.

[0085] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0086] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cable tray cutting device for electrical engineering installation, characterized in that, Including: A fixed bracket (1) is provided with a clamping assembly thereon for clamping the cable tray trough. The clamping assembly includes two groups of first clamping striated plates (2) symmetrically distributed; A cutting assembly is arranged on the fixed bracket (1) for cutting the cable tray trough. The cutting assembly includes a cutting bracket (3), and a cutting motor (15) is slidably arranged on the cutting bracket (3). A cutting blade (7) is installed at the output end of the cutting motor (15); A grinding assembly is used for grinding the cut of the cable tray trough. The grinding assembly includes a rotatably arranged grinding roller (30).

2. The cable tray cutting device for electrical engineering installation according to claim 1, characterized in that, A limiting groove (12) is formed at the upper end of the fixed bracket (1). A first double-headed screw rod (14) is rotatably arranged inside the limiting groove (12). A first motor (5) is installed on the side wall of the fixed bracket (1) corresponding to one end of the first double-headed screw rod (14). One end of the first double-headed screw rod (14) passes through the side wall of the fixed bracket (1) and is connected to the output end of the first motor (5); Two groups of limiting blocks (13) symmetrically distributed are slidably arranged inside the limiting groove (12), and both groups of limiting blocks (13) are screwed to the first double-headed screw rod (14); The upper parts of the two groups of symmetrically distributed limiting blocks (13) are respectively connected with a group of first clamping striated plates (2). The two groups of first clamping striated plates (2) approach or move away from each other through the cooperation of the limiting blocks (13) and the first double-headed screw rod (14).

3. The cable tray cutting device for electrical engineering installation according to claim 2, characterized in that, Two groups of first sliding grooves (8) are formed at the upper end of the fixed bracket (1). The two groups of first sliding grooves (8) are symmetrically distributed with the limiting blocks (13) as the center; Two groups of symmetrically distributed first sliding blocks (9) are slidably arranged inside the two groups of first sliding grooves (8). The two groups of first sliding blocks (9) inside each first sliding groove (8) are respectively connected with the lower end of the corresponding first clamping striated plate (2).

4. A cable tray cutting device for electrical engineering installation according to claim 3, characterized in that, A first through groove (10) is formed at the upper end of the fixed bracket (1) corresponding to the positions of the two groups of first clamping striated plates (2). The first through groove (10) penetrates the fixed bracket (1); A second through groove (16) is formed at the upper end of the fixed bracket (1) corresponding to the side of the cutting bracket (3) away from the first clamping striated plate (2). The second through groove (16) penetrates the fixed bracket (1); Two groups of second clamping striated plates (4) symmetrically distributed are arranged at the upper end of the fixed bracket (1) corresponding to the position of the second through groove (16). The two groups of second clamping striated plates (4) and the two groups of first clamping striated plates (2) are on the same axis; A connecting rod (11) is arranged between the two groups of second clamping striated plates (4) and the corresponding first clamping striated plates (2). The second clamping striated plate (4) is connected to the corresponding first clamping striated plate (2) through the connecting rod (11).

5. A cable tray cutting device for electrical engineering installation according to claim 1, characterized in that, A groove (20) is provided on the lower end surface of the top of the cutting bracket (3), a second transmission screw (22) is rotatably arranged inside the groove (20), a third motor (23) is installed at a position on the side wall of the cutting bracket (3) corresponding to the second transmission screw (22), one end of the second transmission screw (22) passes through the side wall of the cutting bracket (3) and is connected to the output end of the third motor (23); A first connecting block (21) is slidably disposed inside the groove (20), the first connecting block (21) is threadedly connected to the second transmission screw (22), and a first electric telescopic rod (24) is installed on the lower end surface of the first connecting block (21), and the output end of the first electric telescopic rod (24) is connected to the cutting motor (15).

6. The cable tray cutting device for electrical engineering installation according to claim 1, characterized in that, A clearance groove (17) is provided on the upper end surface of the fixed bracket (1) at a position corresponding to the cutting blade (7), a first transmission screw (19) is rotatably provided at the inner bottom end of the clearance groove (17), a second motor (6) is installed at a position corresponding to the clearance groove (17) on the side wall of the fixed bracket (1), one end of the clearance groove (17) passes through the side wall of the fixed bracket (1) and is connected to the output end of the second motor (6); A second connecting block (25) is slidably disposed inside the clearance groove (17), and the second connecting block (25) is threadedly connected to the first transmission screw rod (19); The lower end of the second connecting block (25) is provided with two groups of second sliding grooves (40) which are symmetrically distributed, and the inner bottom end of the giving way groove (17) is provided with two groups of second sliding blocks (18) which are symmetrically distributed at positions corresponding to the two groups of the second sliding grooves (40).

7. The cable tray cutting device for electrical engineering installation according to claim 6, wherein A second electric telescopic rod (26) is installed on the upper end surface of the second connecting block (25); an output end of the second electric telescopic rod (26) is connected to a storage plate (27); and a vertical plate (28) is installed on the upper end surface of the storage plate (27); A fourth motor (31) is installed at the center of a side wall of one side of the vertical plate (28), and an output end of the fourth motor (31) passes through the side wall of the vertical plate (28) and is connected to a fixing plate (29); Two groups of symmetrically distributed fifth motors (32) are installed on one side wall of the fixed plate (29), and the output ends of the two groups of fifth motors (32) penetrate the side wall of the fixed plate (29) and are connected to the ends of the two groups of grinding rollers (30).

8. The cable tray cutting device for electrical engineering installation according to claim 7, characterized in that, The outer surface of each grinding roller (30) is provided with a plurality of groups of receiving grooves (34) distributed in a circumferential manner, and a grinding plate (33) is arranged inside each receiving groove (34); A support assembly is arranged inside the grinding roller (30) for supporting each grinding plate (33) outwardly.

9. The cable tray cutting device for electrical engineering installation according to claim 8, wherein, Each of the grinding rollers (30) is provided with a cavity inside, and the support assembly is arranged inside the cavity; The support assembly includes a second double-headed lead screw (36) rotatably arranged inside the cavity. Symmetrically distributed two groups of third connecting blocks (37) are screwed on the outer surface of the second double-headed lead screw (36). At the positions corresponding to each of the grinding plates (33) on the outer surfaces of the two groups of third connecting blocks (37), corresponding hinge rods (38) are hinged. One end of each hinge rod (38) far from the third connecting block (37) is hinged to the lower end surface of the corresponding grinding plate (33). One end of the second double-headed lead screw (36) passes through the side wall of the grinding roller (30) and is connected with a hand wheel (39).

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