A special-shaped plate cutting device for processing low-voltage switchgear

Abstract

The present invention discloses a special-shaped plate cutting device for processing low-voltage switch cabinets, which relates to the technical field of switch cabinet processing. The special-shaped plate cutting device for processing low-voltage switch cabinets comprises a central support rod, a cutting gun built into a support seat at one end of the central support rod, two rows of pressure rollers arranged in opposite forms on both sides of the cutting path of the cutting gun, a pressure assembly arranged on the support seat, and positioning assemblies arranged on both sides of the cutting path of the cutting gun. The pressure of the pressure assembly is transmitted to the two rows of pressure rollers through the pressure bearing of the pressure assembly, and the two rows of pressure rollers apply flat pressure to the plates on both sides of the switch cabinet cutting seam, flattening the warped edges caused by stress release due to cutting, and converting the pressure of the pressure assembly into braking force, pushing the two rows of pressure rollers to self-deflect toward the switch cabinet plate cutting seam. The braking of the two rows of pressure rollers is used to apply opposite thrusts to the plates on both sides of the switch cabinet cutting seam, pushing the plates on both sides of the switch cabinet cutting seam closer together, thereby reducing the cutting deviation caused by the warped edges.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinet processing, in particular to a special-shaped plate cutting device for processing a low-voltage switch cabinet. Background Art

[0002] As the terminal control facility of power equipment, low-voltage switchgear has core control and protection functions in the power system. With the development of industrialization, electricity consumption is increasing. Low-voltage switchgear is widely used in power plants, petrochemicals, metallurgy, textiles, high-rise buildings and other scenarios to ensure stable power supply for power equipment and production processes.

[0003] Low-voltage switchgear has various structures, including fixed and withdrawable types. Its shell is generally cut from cold-rolled steel plates. In the process of cutting the low-voltage switchgear shell, in order to improve the cutting efficiency, laser cutting technology is usually used to cut the low-voltage switchgear shell into a specified size and shape. Slots can be directly cut on the cut plate to serve as installation space for external components. It is suitable for cutting various special-shaped plates.

[0004] Currently, when processing the low-voltage switchgear shell, most of the time, direct cutting is used, in which the laser cutting gun moves along the cutting path to cut the cold-rolled steel plate into the shell structure required by the switchgear. However, due to the uneven extension of the cold-rolled steel plate in the thickness direction during the cold rolling production process, residual stress is generated, or the cutting speed, angle or equipment stability are insufficient, which may aggravate the stress accumulation and cause stress concentration during plate cutting, resulting in warping. In particular, as the cutting seam extends, the steel plates in the cutting path are not completely separated. Under the action of stress, the warping deformation of the steel plates on both sides of the cutting seam gradually expands, resulting in the subsequent plate cutting often being unable to cut accurately along the cutting path, causing deviations in the plate cutting. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for cutting special-shaped plates for processing low-voltage switchgear, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A special-shaped plate cutting device for processing low-voltage switchgear, comprising:

[0007] Center support rod;

[0008] A support seat, the support seat is arranged axially along the central support rod;

[0009] A cutting gun, which is arranged at one end of the central support rod and built into the support seat;

[0010] Pressing wheels are arranged in two rows, and the two rows of pressing wheels are arranged in a facing manner on both sides of the cutting path of the cutting gun;

[0011] A pressure assembly is provided on the support seat and is used to apply pressure and a deflection force to the two rows of pressure wheels, so that the pressure wheels press the panels on both sides of the cut switchgear flatly and deflect them symmetrically toward the cut seam of the switchgear panels;

[0012] The positioning components are arranged on both sides of the cutting path of the cutting gun, and the positioning components are used to drive the pressure wheel to be stationary relative to the cutting gun.

[0013] A rotating shaft, which is located away from the supporting seat and on one side of the pressing wheel, and the rotating shaft rotates to control the deflection angle of the pressing wheel;

[0014] The positioning component includes:

[0015] A pressure frame, wherein the pressure frame is arranged on the rotating shaft;

[0016] A rotating frame is installed at one end of the rotating shaft and is flatly pressed on the pressure frame. A pressure plate supporting the pressure wheel is slidably connected below the rotating frame;

[0017] The electric push rod is arranged on the rotating shaft, and the telescopic end of the electric push rod is provided with a pushing handle for pushing the pressure plate to move relative to the rotating frame.

[0018] Furthermore, a hub motor is provided in the pressure wheel, and the pressure wheel rotates to push the plates on both sides of the cut seam of the switch cabinet toward each other.

[0019] Furthermore, the pressure component includes:

[0020] The fixed sleeves are distributed on both sides of the support seat, and a telescopic rod that can slide along the axial direction is provided at the lower end of the fixed sleeve, and the bottom end of the telescopic rod is connected to the pressure frame;

[0021] A compression spring, located at the upper end of the telescopic rod;

[0022] The driving shaft is rotatably connected to the upper end of the fixed sleeve. The driving shaft is a hollow structure. The inner wall of the driving shaft cavity is provided with a track slider, which engages with the spiral guide rod track provided on the telescopic rod, so that the vertical displacement of the telescopic rod is converted into torque of the driving shaft;

[0023] A fixed seat is provided on a support seat on the midline between the two sets of fixed sleeves, a shaft ring is provided inside the fixed seat and is sleeved on the outside of the central support rod, a mainspring is provided between one end of the shaft ring and the fixed seat, and a first driven gear is provided at the other end of the shaft ring, which meshes with the first driving gear provided on the driving shaft, so that the gear meshing pair of the first driving gear and the first driven gear overcomes the elastic torsion of the mainspring and stores energy.

[0024] Furthermore, the pressure assembly also includes a driven shaft that is coaxial with the driving shaft and extends into the pressure frame, and a second driven gear provided at the other end of the rotating shaft. The other end of the driven shaft is provided with a second driving gear that meshes with the second driven gear. The second driving gear is a long gear structure, so that when the telescopic rod is forced to retract into the fixed sleeve, the second driving gear is pushed down and always maintains meshing transmission with the second driven gear, driving the pressure wheel to deflect in the direction of the cutting seam.

[0025] Furthermore, it also includes:

[0026] A limit frame structure is provided at the head of the cutting gun and is mounted on the pressure frame so that when the pressure wheel presses the switch cabinet plate, the cutting gun always maintains a fixed cutting distance with the switch cabinet plate;

[0027] The compression frame structure is arranged between the central support rod and the cutting gun, so that when the central support rod moves to apply pressure to the pressure wheel, the cutting gun remains stationary, providing displacement space for the continuous displacement of the central support rod.

[0028] Furthermore, the limit frame structure includes a rotating sleeve installed on the head of the cutting gun and a fixed sleeve fixed on the pressure frame. The rotating sleeve and the fixed sleeve are fixed together by supporting ribs, so that the cutting gun always maintains the same height with the two rows of pressure wheels of the pressure frame.

[0029] Furthermore, the compression frame structure includes a sliding sleeve, one end of the sliding sleeve is provided with a second slide connected to the central support rod, and the other end of the sliding sleeve is provided with a first slide connected to the cutting gun, and a return spring is provided between the first slide and the second slide to provide sliding support for the sliding sleeve and the first slide, and the sliding sleeve and the second slide.

[0030] Furthermore, the sliding sleeve, the first slide and the second slide are all quadrangular prisms, and the sliding sleeve and the first slide, and the sliding sleeve and the second slide are slidably locked with each other, so that the compression frame structure provides displacement space for the central support rod while vertically guiding the cutting gun.

[0031] Furthermore, it also includes:

[0032] A rotating seat, which is rotatably arranged along the axial direction of the central support rod, and a long screw is provided between the rotating seat and the supporting seat;

[0033] A side support seat is provided, wherein the side support seat is located on the upper side of the rotating seat and is fixedly arranged along the axial direction of the central support rod. A driving motor is provided on one side of the side support seat, and a driving gear is provided at the output end of the driving motor. The driving gear is meshed and connected with the transmission gear provided on the rotating seat, so that the driving motor drives the support seat to rotate along the axial direction of the central support rod, pushing the two rows of pressure wheels to rotate with the cutting gun as the center, and always rotate to the same cutting path as the cutting gun.

[0034] The present invention has the following beneficial effects:

[0035] (1) The special-shaped plate cutting device for processing low-voltage switchgear transmits pressure to two rows of pressure wheels through the pressure of the pressure component, and applies flat pressure to the plates on both sides of the switchgear cutting seam through the two rows of pressure wheels, flattens the warped edges caused by stress release due to cutting, and converts the pressure of the pressure component into braking force, pushing the two rows of pressure wheels to self-deflect toward the switchgear plate cutting seam. By utilizing the braking of the two rows of pressure wheels, opposite thrusts are applied to the plates on both sides of the switchgear cutting seam, pushing the plates on both sides of the switchgear cutting seam toward each other, maintaining the smoothness and consistency of the switchgear plates on the cutting path, and reducing the cutting deviation caused by the warped edges.

[0036] (2) The device for cutting special-shaped plates for processing low-voltage switchgear can make the displacement of the pressure wheel relative to the cutting gun stationary by setting the positioning component, so that while the cutting gun moves forward to cut, the pressure wheel maintains a fixed-point downward pressure and opposite-pushing state, applying flat pressure and opposite-pushing forces to the plates on both sides of the cut seam of the switchgear, thereby maintaining the smoothness and stability of the cutting path of the switchgear plate.

[0037] (3) The special-shaped plate cutting device for processing low-voltage switch cabinets can not only apply double flat pressure to the two rows of pressure wheels through the setting of the pressure component, but also has the dynamic balancing ability, so that the two rows of pressure wheels can maintain consistent pressure to flatten the plates on both sides of the switch cabinet cutting seam, and apply the same braking force to push the two rows of pressure wheels to deflect in opposite directions, and apply opposite pushes to the plates on both sides in the form of an angle.

[0038] (4) The special-shaped plate cutting device for processing low-voltage switchgear uses the compression frame structure to guide the cutting gun and the limit frame structure to limit the cutting gun, so that the cutting gun always maintains the same height as the pressure wheel behind the plate on both sides of the switchgear cutting seam, and then maintains the rated height with the switchgear plate, and performs the cutting process on the switchgear plate. Its cutting stroke is not affected by the warping of the plate, and the cutting is more accurate.

[0039] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of the present invention;

[0041] Figure 2 This is a schematic diagram of the assembly of the cutting gun and the pressure wheel in the present invention;

[0042] Figure 3 This is a schematic diagram of the assembly of the pressure component and the positioning component in the present invention;

[0043] Figure 4is a first cross-sectional view of the pressure assembly of the present invention;

[0044] Figure 5 is a second cross-sectional view of the pressure assembly of the present invention;

[0045] Figure 6 is a third cross-sectional view of the pressure assembly of the present invention;

[0046] Figure 7 is a fourth cross-sectional view of the pressure assembly of the present invention;

[0047] Figure 8 A first transmission schematic diagram of the first driving gear and the second driving gear in the present invention;

[0048] Figure 9 A second transmission schematic diagram of the first driving gear and the second driving gear in the present invention;

[0049] Figure 10 It is a structural schematic diagram of the positioning component in the present invention;

[0050] Figure 11 A partial cross-sectional view of a positioning assembly in the present invention;

[0051] Figure 12 A partial cross-sectional bottom view of the positioning assembly of the present invention;

[0052] Figure 13 Schematic diagram of the transmission of the positioning assembly in the present invention;

[0053] Figure 14 It is a bottom view of the transmission of the positioning assembly in the present invention;

[0054] Figure 15 This is a schematic diagram of the assembly of the cutting gun of the present invention;

[0055] Figure 16 This is an exploded view of the assembly of the cutting gun of the present invention;

[0056] Figure 17 It is a partial cross-sectional view of the compression frame structure of the present invention;

[0057] Figure 18 Schematic diagram of the rotation drive of the support frame structure in the present invention.

[0058] In the figure, 1. cutting platform; 2. X-axis screw guide rail; 3. Y-axis screw guide rail; 4. Z-axis screw guide rail; 5. support seat; 6. center support rod; 7. cutting gun; 8. compression frame structure; 81. sliding sleeve; 82. first slide; 83. second slide; 84. return spring; 9. limit frame structure; 91. rotating sleeve; 92. supporting rib; 93. fixed sleeve; 10. driving motor; 11. driving gear; 12. transmission gear; 13. support frame structure; 131. rotating seat; 132. long screw; 133. support seat; 14. fixed sleeve; 15. driving shaft; 16 , first driving gear; 17, transfer gear; 18, first driven gear; 19, telescopic rod; 20, pressure frame; 21, electric push rod; 22, pressure wheel; 23, fixed seat; 24, shaft ring; 25, compression spring; 26, spiral guide rod; 27, track slider; 28, driven shaft; 29, second driving gear; 30, rotating shaft; 31, clockwork spring; 32, second driven gear; 33, track frame; 34, track slide; 35, rotating frame; 36, guide rail; 37, pressure plate; 38, guide slide; 39, pushing handle; 40, side support seat; 41, reverse gear. DETAILED DESCRIPTION

[0059] The following is based on Figures 1-18 The present invention provides a device for cutting special-shaped plates for processing low-voltage switchgear.

[0060] See also Figure 1-Figure 3 A special-shaped plate cutting device for processing low-voltage switch cabinets includes a cutting platform 1, an X-axis screw guide rail 2, a Y-axis screw guide rail 3, and a Z-axis screw guide rail 4 arranged around the cutting platform 1, and a central support rod 6 is fixed to the Z-axis screw guide rail 4 through a support seat 5, so that a cutting gun 7 arranged on the central support rod 6 is loaded on the three sets of screw guide rails. Then, when cutting the low-voltage switch cabinet shell plate, the three-way support displacement structure composed of the X-axis screw guide rail 2, the Y-axis screw guide rail 3, and the Z-axis screw guide rail 4 serves as a braking thrust during cutting, pushing the cutting gun 7 to move left and right, front and back, and up and down to cut the plate on the cutting platform 1, and the plate is cut into the style required by the switch cabinet.

[0061] It should be noted that the specific installation method of the screw guide rail is that the X-axis screw guide rail 2 is installed on the cutting platform 1, the Y-axis screw guide rail 3 is installed on the X-axis screw guide rail 2 and moves horizontally with it, the Z-axis screw guide rail 4 is installed on the Y-axis screw guide rail 3 and moves synchronously with it, and the support seat 5 is installed on the Z-axis screw guide rail 4 and rises and falls with it.

[0062] In addition, it also includes a support seat 133 arranged axially along the central support rod 6, two rows of pressure wheels 22 arranged in opposite forms on both sides of the cutting path of the cutting gun 7, a pressure component arranged on the support seat 133, and a positioning component arranged on both sides of the cutting path of the cutting gun 7. When the Z-axis screw guide 4 pushes the cutting gun 7 downward and approaches the plate on the cutting platform 1, the two rows of pressure wheels 22 are pre-pressed on both sides of the weld of the plate with the cutting gun 7 as the center. Then, when the Z-axis screw guide 4 pushes the cutting gun 7 to continue to move downward, the downward force is converted into a braking force and transmitted to the pressure component. While applying pressure to the two rows of pressure wheels 22, a deflection force is applied, so that the pressure wheels 22 press the warped edges of the plates on both sides of the weld being cut and deflect symmetrically to the cutting seam. On the one hand, the stress released by cutting on the two sides of the plate The warped edges of the material are flattened. On the other hand, the opposite deflection of the two rows of pressure wheels 22 is used to form a symmetrical deflection state of the angled welds. Then, the braking of the two rows of pressure wheels 22 is used to convert the rolling force into a horizontal friction thrust, and apply opposite thrusts to the plates on both sides of the cutting seam, pushing the plates on both sides of the cutting seam toward the weld seam to maintain the smoothness and consistency of the switch cabinet plates on the cutting path. When the X-axis screw guide rail 2 and the Y-axis screw guide rail 3 push the cutting gun 7 to move horizontally to cut the plates, the braking of the positioning component is used to make the pressure wheels 22 stationary relative to the cutting gun 7, maintaining a fixed-point downward pressure and opposite pushing state, applying flat pressure and opposite thrust to the plates on both sides of the cut seam, maintaining the smoothness and stability of the switch cabinet plate cutting path, and reducing the impact of cutting deviation caused by warping.

[0063] It should be noted that a hub motor is provided in the pressure wheel 22, and the built-in hub motor of the pressure wheel 22 is used as a power source to drive the pressure wheel 22 to rotate. Since the pressure wheel 22 is subjected to downward pressure to press the plates on both sides of the weld, its rotational braking force can be converted into horizontal friction braking force at this time, pushing the plates on both sides of the cutting seam closer together to maintain the consistency of the plates after cutting.

[0064] See also Figure 3-Figure 5 、 Figure 8-Figure 9 In order to realize the flattening of the warped plates on both sides of the cutting seam by the pressure wheel 22, the pressure assembly includes fixed sleeves 14 distributed on both sides of the support seat 133, and a telescopic rod 19 that can slide in the axial direction is provided at the lower end of the fixed sleeve 14. A compression spring 25 is provided at the upper end of the telescopic rod 19, and the bottom end of the telescopic rod 19 is connected to the pressure frame 20. Since the pressure wheel 22 is supported and loaded by the pressure frame 20, when the pressure wheel 22 is used to flatten the warped plates on both sides of the cutting seam, the pressure pushing the cutting gun 7 downward is transmitted to the telescopic rod 19 through the pressure wheel 22, causing the telescopic rod 19 to retract and compress the compression spring 25, and the elastic restoring force of the compression spring 25 is transmitted to the pressure wheel 22 through the pressure frame 20, applying an elastic flattening pressure to the warped plates on both sides of the cutting seam.

[0065] As a further solution of this embodiment, the pressure assembly also includes a driving shaft 15 rotatably connected to the upper end of the fixed sleeve 14 and a fixed seat 23 provided at the midline between the two groups of fixed sleeves 14 and fixed on the support seat 133. The driving shaft 15 is a cavity structure. The inner wall of the cavity of the driving shaft 15 is provided with a track slider 27, which is engaged with the track of the spiral guide rod 26 provided on the telescopic rod 19, so that the vertical displacement of the telescopic rod 19 is converted into the torque of the driving shaft 15. A shaft ring 24 is provided in the fixed seat 23 and is sleeved on the outside of the central support rod 6. A spring 31 is provided between one end of the shaft ring 24 and the fixed seat 23. A first driven gear 18 is provided at the other end of the shaft ring 24. The first driven gear 18 is engaged with the first driving gear 16 provided on the driving shaft 15, so that the gear meshing pair of the first driving gear 16 and the first driven gear 18 overcomes the elastic torsion of the spring 31 and stores energy. When the telescopic rod 19 is retracted into the fixed sleeve 14, the upward movement of the telescopic rod 19 pushes the spiral guide rod 26 to move synchronously, and then the spiral guide rod 26 is engaged with the track of the track slider 27 when it moves upward, and the upward thrust is converted into a rotational thrust, which serves as a driving source to drive the driving shaft 15 to rotate, and then drives the first driving gear 16 to rotate. The intermediate engagement of the transfer gear 17 is used to make the first driving gear 16 drive the first driven gear 18 to engage and rotate, and then the gear meshing pair of the first driving gear 16 drives the first driven gear 18 to drive the shaft ring 24 to rotate, overcome the elastic torsion of the spring 31, tighten the spring 31 to store energy, and transmit the elastic reset force of the spring 31 to the pressure frame 20 at the bottom end of the telescopic rod 19 through the gear meshing pair, and then transmit it to the pressure wheel 22, applying secondary elastic flat pressure to the warped plates on both sides of the cutting seam.

[0066] It should be noted that the double elastic component composed of the compression spring 25 and the mainspring 31 acts on the pressure wheel 22 to form a double elastic flat pressure, which is gentler on the plates on both sides of the cutting seam, avoiding the direct downward pressure transmission to the plates, resulting in the back of the plates and the cutting platform 1 being squeezed and collided, resulting in white spots, bumps, etc., and when the mainspring 31 is tightened and stored in energy through the gear meshing pair of the first driving gear 16 and the first driven gear 18, the meshing transmission between the two groups of first driving gears 16 and the first driven gear 18 forms a gear meshing force of equal size, which pushes the mainspring 31 to retract. The energy is stored tightly, so that the storage capacity of the clockwork 31 is evenly transmitted to the gear meshing pair of each first driving gear 16 and the first driven gear 18, and then transmitted to the telescopic rods 19 on both sides, and finally acts on the two rows of pressure wheels 22, so that the two rows of pressure wheels 22 maintain the same pressure, press the plates on both sides of the cutting seam, and realize the dynamic balance downward pressure of the plates on both sides of the cutting seam to overcome the warping of the plates on both sides of the cutting seam and perform synchronous flat pressing. The meshing transmission between the first driving gear 16 and the first driven gear 18 can also force the driving shafts 15 on both sides to rotate synchronously, forming an equal amount of driving force, which pushes the two rows of pressure wheels 22 to deflect in opposite directions.

[0067] See also Figure 6-Figure 14 In order to realize the synchronous deflection when the pressure wheel 22 presses the plates on both sides of the cutting seam, the pressure assembly also includes a driven shaft 28 coaxial with the driving shaft 15 and extending into the pressure frame 20, and a second driven gear 32 provided at the other end of the rotating shaft 30. The other end of the driven shaft 28 is provided with a second driving gear 29 meshing with the second driven gear 32. The second driving gear 29 is a long gear structure. When the telescopic rod 19 is forced to retract into the fixed sleeve 14, the second driving gear 29 is pushed down and always keeps meshing transmission with the second driven gear 32, driving the pressure wheel 22 to deflect toward the cutting seam direction. The pressure wheel 22 below the pressure frame 20 is meshed with the second driven gear 32. After the switch cabinet plate to be cut comes into contact with the plate, it cannot continue to move downward. At this time, the downward pressure acting on the pressure wheel 22 is transmitted to the telescopic rod 19, causing the telescopic rod 19 to retract into the fixed sleeve 14. At the same time, the second driving gear 29 in the telescopic rod 19 continues to move downward under the continuous downward pressure. Since the second driving gear 29 is a long gear structure, it can always maintain meshing transmission with the second driven gear 32. At this time, the downward pressure acts on the driving shaft 15 and causes the driving shaft 15 to rotate. The force is transmitted to the second driving gear 29 through the driven shaft 28, causing the second driving gear 29 to move downward while continuously meshing transmission with the second driven gear 32. Since the two sets of second driving gears 29 are subjected to the same rotational force, the same meshing transmission is generated between them and the two sets of second driven gears 32, resulting in the synchronous rotation of the two sets of rotating shafts 30, which in turn causes the two rows of pressure wheels 22 to maintain the same direction of deflection, and cannot face the cutting seam of the plate at an angle. At this time, by adding a reverse gear 41 between the gear meshing pair of the second driving gear 29 and the second driven gear 32 of the other set, the two sets of rotating shafts 30 are pushed to rotate in opposite directions, and then the two rows of pressure wheels 22 are pushed to deflect in opposite directions, and deflect toward the cutting seam of the plate at an angle, and the rotation force is converted into It is transformed into a horizontal thrust, pushing the plates on both sides of the cutting seam toward the cutting seam, pushing the rotating shaft 30 to rotate, and then pushing the rotating frame 35 to rotate, so that the pressure roller 22 deflects with the rotating shaft 30 as the axis, and deflects toward the cutting seam of the plate, so as to utilize the friction generated when the two rows of pressure rollers 22 roll to push the plates on both sides of the cutting seam to get closer, and the opposite deflection angles of the two rows of pressure rollers 22 change synchronously with the flattening pressure of the two rows of pressure rollers 22 on the plate. The greater the flattening pressure of the two rows of pressure rollers 22 on the plate, the larger the opposite deflection angles of the two rows of pressure rollers 22, the closer the rollers tend to be to the vertical weld, and the stronger the opposite thrust formed.

[0068] It should be noted that when the rotating shaft 30 pushes the pressure wheel 22 under the rotating frame 35 to deflect along the rotating shaft 30, a track frame 33 coaxial with the rotating shaft 30 is set on the pressure frame 20, and a track slide 34 slides along the track frame 33 and supports the electric push rod 21, so that the rotating shaft 30 drives the electric push rod 21 to deflect synchronously with the pressure wheel 22, so that the electric push rod 21 always maintains the telescopic push on the pressure wheel 22.

[0069] See also Figure 10-14 In order to achieve the stationary state of the pressure wheel 22 when it is displaced relative to the cutting gun 7 during cutting, the positioning assembly includes a pressure frame 20 provided on the rotating shaft 30 and supporting the rotating shaft 30, and a rotating frame 35 provided at one end of the rotating shaft 30 and pressed flat on the pressure frame 20. A pressure plate 37 supporting the pressure wheel 22 is slidably connected to the lower part of the rotating frame 35. An electric push rod 21 is provided on the rotating shaft 30. The telescopic end of the electric push rod 21 is provided with a pushing handle 39 for pushing the pressure plate 37 to move relative to the rotating frame 35. When the cutting gun 7 moves to cut the switch cabinet plate, the electric push rod 21 is controlled to retract and retract. The sliding combination of the guide slide rail 36 and the guide slide 38 is used to push the pressure plate 37 out relative to the rotating frame 35, so that the pushing out of the pressure plate 37 is consistent with the displacement of the cutting gun 7. Keep it synchronized, and then make the pressure wheel 22 stationary relative to the cutting gun 7, and apply flat pressure and opposite thrust to the plates on both sides of the cut seam of the switch cabinet in a fixed-point downward pressure and opposite pushing state, flatten the warped plates on both sides of the cut seam and bring them closer together to maintain the smooth consistency of the cutting path of the switch cabinet plate. When the push of the pressure plate 37 and the opposite displacement of the cutting gun 7 reach a critical value, the Z-axis screw guide rail 4 moves upward to release the force flat pressure between the pressure wheel 22 and the plate. When the pressure is released, the driving force formed by the pressure disappears, causing the pressure wheel 22 to self-deflect and reset. At this time, the electric push rod 21 contracts to reset the pressure wheel 22, forming a new round of reset state, and according to this state, the switch cabinet plate is continuously cut with flat edges.

[0070] See also Figure 15-17 In order to ensure that the cutting gun 7 maintains a stable distance relative to the plate when cutting, a limit frame structure 9 is provided at the head of the cutting gun 7 and a compression frame structure 8 is provided between the central support rod 6 and the cutting gun 7. By installing the limit frame structure 9 on the pressure frame 20, when the pressure wheel 22 presses the switch cabinet plate, the pressure frame 20 maintains a certain distance from the switch cabinet plate. At this time, the limit frame structure 9 is used to limit the cutting gun 7, so that the cutting gun 7 always maintains a fixed cutting distance from the switch cabinet plate, and when the pressure wheel 22 is pushed to press the switch cabinet plate, the displacement caused by its downward pressure can be offset by the compression frame structure 8, so that the cutting gun 7 is not affected by the downward pressure of the pressure wheel 22.

[0071] As a further solution of this embodiment, the limit frame structure 9 includes a rotating sleeve 91 mounted on the gun head of the cutting gun 7 and a fixed sleeve 93 fixed on the pressure frame 20. The rotating sleeve 91 and the fixed sleeve 93 are fixed as a whole through the support ribs 92. Through the setting of the fixed sleeve 93, the cutting gun 7 is fixedly loaded on the pressure frame 20, and the height is kept consistent with the two rows of pressure wheels 22 below the pressure frame 20, and then the panel is cut at the same distance as the switch cabinet plate. Through the setting of the rotating sleeve 91, when the subsequent two rows of pressure wheels 22 rotate to be consistent with the cutting path of the cutting gun 7, the limit frame structure 9 is rotated and displaced around the cutting gun 7, so that the cutting gun 7 is not affected by the displacement of the two rows of pressure wheels 22.

[0072] The first and second carriages 83 are connected to each other by means of a spring 84 which is arranged between the first and second carriages 82 and 83 and which is arranged to support the sliding of the carriage 81 and the second carriage 83.

[0073] See also Figure 1-Figure 2 、 Figure 18 In order to ensure that the pressure wheel 22 and the cutting path of the cutting gun 7 always keep the same direction, a rotating seat 131 is arranged to rotate axially along the central support rod 6. A long screw 132 is provided between the rotating seat 131 and the supporting seat 133 to form a support frame structure 13 supporting the pressure component, the positioning component, and the pressure wheel 22. The central support rod 6 is axially fixed with a side support seat 40 located on the upper side of the rotating seat 131. A driving motor 10 is provided on one side of the side support seat 40. A driving gear 11 is provided at the output end of the driving motor 10. The driving gear 11 is connected to the rotating seat 131. The transmission gear 12 on the cutting gun 7 is meshed and connected. When the cutting path of the cutting gun 7 changes, the driving motor 10 is controlled to work, which drives the driving gear 11 to rotate. The meshing transmission of the driving gear 11 and the transmission gear 12 promotes the axial rotation of the supporting frame structure 13 relative to the central support rod 6, and then rotates around the cutting gun 7, so that the two rows of pressure wheels 22 are rotated to the same direction as the cutting path of the cutting gun 7 with the cutting gun 7 as the center, and the warped edges of the plates on both sides of the cutting seam are pressed flat and brought closer together along the cutting path of the cutting gun 7.

Claims

1. A device for cutting special-shaped plates for processing low-voltage switchgear, characterized in that: include: Central support rod (6); A support seat (133), wherein the support seat (133) is arranged axially along the central support rod (6); A cutting gun (7), the cutting gun (7) being arranged at one end of the central support rod (6) and built into the support seat (133); Pressing wheels (22), the pressing wheels (22) are arranged in two rows, and the two rows of pressing wheels (22) are arranged in an opposing manner on both sides of the cutting path of the cutting gun (7); A pressure assembly, the pressure assembly being arranged on the support seat (133), and being used for applying pressure and a deflection force to the two rows of pressure wheels (22), so that the pressure wheels (22) press the plates on both sides of the cut switch cabinet flatly and symmetrically deflect them toward the cut seam of the switch cabinet plates; A positioning assembly, the positioning assembly being arranged on both sides of the cutting path of the cutting gun (7), and the positioning assembly being used to drive the pressure wheel (22) to move relative to the cutting gun (7) to remain stationary; A rotating shaft (30), the rotating shaft (30) is provided on one side of the pressing wheel (22), and the rotating shaft (30) rotates to control the deflection angle of the pressing wheel (22); The positioning component includes: A pressure frame (20), wherein the pressure frame (20) is arranged on the rotating shaft (30); A rotating frame (35), the rotating frame (35) is arranged at one end of the rotating shaft (30) and is pressed flat on the pressure frame (20), and a pressure plate (37) supporting the pressure wheel (22) is slidably connected below the rotating frame (35); An electric push rod (21) is provided on the rotating shaft (30), and a push handle (39) is provided at the telescopic end of the electric push rod (21) for pushing the pressure plate (37) to move relative to the rotating frame (35).

2. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 1, characterized in that: A hub motor is provided in the pressure wheel (22), and the pressure wheel (22) rotates to push the plates on both sides of the cut seam of the switch cabinet toward each other.

3. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 1, characterized in that: The pressure assembly comprises: A fixed sleeve (14), the fixed sleeve (14) is distributed on both sides of the support seat (133), the lower end of the fixed sleeve (14) is provided with a telescopic rod (19) that can slide along the axial direction, and the bottom end of the telescopic rod (19) is connected to the pressure frame (20); A compression spring (25), the compression spring (25) being located at the upper end of the telescopic rod (19); A driving shaft (15) is rotatably connected to the upper end of the fixed sleeve (14). The driving shaft (15) is a hollow structure. A track slider (27) is provided on the inner wall of the cavity of the driving shaft (15) and engages with the track of the spiral guide rod (26) provided on the telescopic rod (19), so that the vertical displacement of the telescopic rod (19) is converted into the torque of the driving shaft (15); A fixed seat (23) is provided on a support seat (133) at the midline of the interval between the two sets of fixed sleeves (14). A shaft ring (24) is provided inside the fixed seat (23) and is sleeved on the outside of the central support rod (6). A spring (31) is provided between one end of the shaft ring (24) and the fixed seat (23). A first driven gear (18) is provided at the other end of the shaft ring (24). The first driven gear (18) is meshed with a first driving gear (16) provided on the driving shaft (15), so that the gear meshing pair of the first driving gear (16) and the first driven gear (18) overcomes the elastic torsion of the spring (31) to store energy.

4. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 3, characterized in that: The pressure assembly further comprises a driven shaft (28) coaxial with the driving shaft (15) and extending into the pressure frame (20), and a second driven gear (32) provided at the other end of the rotating shaft (30). The other end of the driven shaft (28) is provided with a second driving gear (29) meshing with the second driven gear (32). The second driving gear (29) is a long gear structure. When the telescopic rod (19) is forced to retract into the fixed sleeve (14), the second driving gear (29) is pushed down and always maintains meshing transmission with the second driven gear (32), driving the pressure wheel (22) to deflect in the direction of the cutting seam.

5. The device for cutting special-shaped plates for processing low-voltage switchgear according to any one of claims 1 to 4, characterized in that: Also includes: A limit frame structure (9), the limit frame structure (9) is provided at the head of the cutting gun (7), and the limit frame structure (9) is mounted on the pressure frame (20), so that when the pressure wheel (22) presses the switch cabinet plate, the cutting gun (7) always maintains a fixed cutting distance with the switch cabinet plate; A compression frame structure (8) is provided between the central support rod (6) and the cutting gun (7), so that when the central support rod (6) is displaced to apply pressure to the pressure wheel (22), the cutting gun (7) remains stationary, thereby providing space for the continuous displacement of the central support rod (6).

6. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 5, characterized in that: The limiting frame structure (9) comprises a rotating sleeve (91) sleeved on the head of the cutting gun (7) and a fixed sleeve (93) fixed on the pressure frame (20). The rotating sleeve (91) and the fixed sleeve (93) are fixed as a whole via supporting ribs (92), so that the cutting gun (7) always maintains the same height as the two rows of pressure wheels (22) of the pressure frame (20).

7. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 5, characterized in that: The compression frame structure (8) comprises a sliding sleeve (81), one end of the sliding sleeve (81) is provided with a second sliding frame (83) connected to the central support rod (6), and the other end of the sliding sleeve (81) is provided with a first sliding frame (82) connected to the cutting gun (7), and a return spring (84) is provided between the first sliding frame (82) and the second sliding frame (83) to provide sliding support for the sliding sleeve (81) and the first sliding frame (82), and for the sliding sleeve (81) and the second sliding frame (83).

8. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 7, characterized in that: The sliding sleeve (81), the first slide (82), and the second slide (83) are all quadrangular prisms, and the sliding sleeve (81) and the first slide (82), and the sliding sleeve (81) and the second slide (83) are mutually slidably engaged, so that the compression frame structure (8) provides displacement space for the central support rod (6) while also providing vertical guidance for the cutting gun (7).

9. The device for cutting special-shaped plates for processing low-voltage switchgear according to claim 5, characterized in that: Also includes: A rotating seat (131), wherein the rotating seat (131) is rotatably arranged along the axial direction of the central support rod (6), and a long screw (132) is provided between the rotating seat (131) and the supporting seat (133); A side support seat (40) is provided, wherein the side support seat (40) is located on the upper side of the rotating seat (131) and is fixedly arranged along the axial direction of the central support rod (6). A driving motor (10) is provided on one side of the side support seat (40). A driving gear (11) is provided at the output end of the driving motor (10). The driving gear (11) is meshed and connected with a transmission gear (12) provided on the rotating seat (131), so that the driving motor (10) drives the supporting seat (133) to rotate along the axial direction of the central support rod (6), pushing the two rows of pressure wheels (22) to rotate around the cutting gun (7) so as to always rotate to the same cutting path as the cutting gun (7).

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