An automated metal cutting device for power engineering

Abstract

This invention relates to the field of metal processing, and more particularly to an automated metal cutting device for power engineering. It includes a frame, a base plate, a support shell, a self-clamping positioning mechanism, and a cutting mechanism. Both the self-clamping positioning mechanism and the cutting mechanism are housed within the support shell. The self-clamping positioning mechanism includes a self-positioning component for positioning and fixing the metal workpiece. The self-positioning component includes evenly distributed positioning flaps and several elastic positioning blocks. The lower support positioning mechanism includes a support component for supporting and positioning the lower side of the metal workpiece. The support component includes a support frame and a support motor. This invention, through the cooperation of the self-clamping positioning mechanism and the lower support positioning mechanism, achieves simultaneous completion of workpiece positioning and clamping actions. Combined with the positioning flaps and elastic positioning blocks, it significantly improves workpiece clamping efficiency and positioning stability, ensuring that the workpiece does not shift or shake during cutting, effectively improving cutting perpendicularity and cross-sectional quality.

Description

Technical Field

[0001] This invention relates to the field of metal processing, and more particularly to an automated metal cutting device for power engineering. Background Technology

[0002] In power engineering on-site construction and equipment maintenance, it is often necessary to cut metal workpieces such as angle steel and flat steel on-site to meet installation and maintenance requirements. Traditionally, this is done using manual cutting tools with simple clamps, which is cumbersome, has low positioning accuracy, and poor safety during the cutting process. With the popularization of automated equipment, some cutting devices adopt a combination of electrically controlled clamping and electric cutting, which improves efficiency to some extent, but still has problems such as complex structure, insufficient adaptability, and poor adaptability to field conditions.

[0003] Existing cutting devices generally suffer from problems such as asynchronous workpiece positioning and clamping, easy eccentricity and displacement of irregularly shaped workpieces, and the need for repeated manual adjustment of cutting length. In addition, the single clamping force can easily cause unstable workpiece clamping, and the large amount of metal debris generated during the cutting process is not cleaned up in time, which can easily cause accumulation, resulting in poor operation continuity and affecting the stability, safety and efficiency of on-site cutting. Summary of the Invention

[0004] To overcome the shortcomings of asynchronous workpiece positioning and clamping, easy eccentricity of irregularly shaped workpieces, single clamping force, and lack of timely cleaning of metal debris generated during cutting, this invention provides an automated metal cutting device for power engineering.

[0005] An automated metal cutting device for power engineering includes a frame, a pad, a support shell, a self-clamping positioning mechanism, a cutting mechanism, a lower support positioning mechanism, and a length positioning component. The pad is fixed to the upper side of the frame, and the support shell is fixed to the upper side of the pad. The self-clamping positioning mechanism and the cutting mechanism are both disposed in the support shell. The lower support positioning mechanism and the length positioning component are disposed within the frame and the pad. The self-clamping positioning mechanism cooperates with the lower support positioning mechanism to achieve synchronous circumferential clamping and positioning of the metal workpiece. The device is characterized by: The self-clamping positioning mechanism includes a self-positioning component for positioning and fixing the metal workpiece. The self-positioning component includes evenly distributed positioning flaps and several elastic positioning blocks. One end of each of the evenly distributed positioning flaps is hinged to the support shell, and the other end is fixed together. Several elastic positioning blocks are disposed on the side of the positioning flaps near the pad. A clamping component is disposed on the positioning flaps for controlling the elastic positioning blocks to clamp and position the metal workpiece. The lower support positioning mechanism includes a support assembly for supporting and positioning the lower side of the metal workpiece. The support assembly includes a support frame and a support motor. The support frame is slidably connected to both the machine frame and the pad. An anti-slip pad is provided on the side of the support frame near the positioning flip plate. The support motor is mounted on the machine frame, and its output end is threaded into the support frame. A cleaning assembly is provided on the machine frame for cleaning metal debris generated during cutting.

[0006] To further explain, the positioning flap is provided with a scissor-type telescopic structure, the elastic positioning block is correspondingly arranged at the intersection of the elastic positioning block and the scissor-type telescopic structure, the elastic positioning block and the intersection of the elastic positioning block and the scissor-type telescopic structure are slidably connected, and the positioning flap is provided with a trigger plate, the trigger plate is in contact with the elastic positioning block.

[0007] To further explain, the positioning flap is slidably connected to an elastic handle on the side away from the support shell. The elastic handle is fixedly connected to a limiting wedge. The limiting wedge is slidably connected to the positioning flap and slidably connected to the pad. The pad is provided with a limiting groove that matches the limiting wedge.

[0008] Further explanation: the clamping assembly includes a clamping plate, which is slidably connected to the positioning flap. The positioning flap is fixedly connected to one end of the scissor-type telescopic structure. An elastic element is provided between the clamping plate and the positioning flap. A clamping telescopic rod is fixedly connected to the positioning flap. The telescopic end of the clamping telescopic rod is slidably connected to the clamping plate. An elastic element is provided between the telescopic end of the clamping telescopic rod and the clamping plate. The elastic coefficient of the elastic element between the telescopic end of the clamping telescopic rod and the clamping plate is greater than the elastic coefficient of the elastic element between the positioning flap and the positioning flap.

[0009] To further explain, the cutting mechanism includes a power motor and a cutting assembly, and the output end of the power motor is engaged with the lead screw of the cutting assembly.

[0010] To further explain, a collection frame is fixedly connected to the side of the cutting assembly near the power motor, and an air suction pipe is provided inside the collection frame, which is connected to an external negative pressure device.

[0011] To further explain, the cleaning component includes a cleaning fan, which is mounted on the frame. A ventilation chamber is provided inside the support frame and is connected to the cleaning fan. The support frame is provided with evenly distributed ventilation holes, and the ventilation chamber is connected to the outside through the ventilation holes.

[0012] To further explain, the positioning flap is provided with a ventilation groove, which is connected to the cleaning fan. The positioning flap is provided with evenly distributed air outlets, and the ventilation groove is connected to the outside through the air outlets.

[0013] To further explain, the length positioning component includes a positioning telescopic rod and a positioning plate. The positioning telescopic rod is slidably connected to the frame, and the positioning plate is fixed to the telescopic end of the positioning telescopic rod. The positioning plate is slidably connected to the pad.

[0014] To further explain, the positioning telescopic rod is fixedly connected to an adjusting rack, a trigger wedge is slidably connected inside the support shell, the trigger wedge is limited to the cutting component, an elastic element is provided between the trigger wedge and the support shell, the support shell is rotatably connected to a trigger gear, the trigger gear is driven to the trigger wedge, the trigger gear is fixedly connected to an adjusting gear, and the adjusting gear is driven to the adjusting rack.

[0015] The beneficial effects of the present invention are as follows: The present invention achieves the synchronous completion of workpiece positioning and clamping actions through the cooperation of the self-clamping positioning mechanism and the lower support positioning mechanism. With the cooperation of the positioning flip plate and the elastic positioning block, the workpiece clamping efficiency and positioning stability are significantly improved, ensuring that the workpiece does not deviate or shake during the cutting process, and effectively improving the cutting perpendicularity and cross-sectional quality. The device adapts to metal workpieces of different thicknesses through a scissor-type telescopic structure and graded elastic clamping, avoiding the problems of insufficient clamping of thinner workpieces and excessive clamping of thicker workpieces, thus expanding its application range. The elastic handle and limit wedge block quickly lock and release the positioning flap, making operation simple and improving the convenience and safety of on-site use. By utilizing the combined ventilation of the cleaning components, ventilation chamber, and ventilation slot, metal shavings and dust generated during cutting can be cleared in real time. The collection frame enables centralized collection of shavings, preventing shavings from accumulating and causing the mechanism to jam. The length positioning component assists in positioning the cutting length and makes room during cutting to avoid affecting the cutting force on the workpiece, thereby improving the accuracy of the cutting length of the metal workpiece and the quality of the cut surface. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention.

[0018] Figure 3 This is a three-dimensional cross-sectional view of the self-clamping positioning mechanism of the present invention.

[0019] Figure 4 This is a three-dimensional cross-sectional view of the self-positioning component of the present invention.

[0020] Figure 5 This is a three-dimensional cross-sectional view of the positioning flap and pad of the present invention.

[0021] Figure 6 This is a three-dimensional cross-sectional view of the positioning flap of the present invention.

[0022] Figure 7 This is a three-dimensional cross-sectional view of the support and positioning mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional cross-sectional view of the support frame of the present invention.

[0024] Figure 9 This is a three-dimensional cross-sectional view of the cutting mechanism of the present invention.

[0025] Figure 10 This is a three-dimensional cross-sectional view of the length positioning component of the present invention.

[0026] In the attached diagrams: 1: Frame, 2: Pad, 3: Support shell, 4: Self-clamping positioning mechanism, 41: Self-positioning component, 411: Positioning flip plate, 412: Elastic positioning block, 413: Scissor-type telescopic structure, 414: Trigger plate, 415: Elastic handle, 416: Limiting wedge, 417: Ventilation slot, 418: Air outlet, 42: Clamping component, 421: Clamping plate, 422: Clamping telescopic rod, 5: Cutting mechanism, 501: Power motor, 502: Cutting assembly, 503: Collection box, 504: Suction pipe, 6: Lower support positioning mechanism, 61: Support assembly, 611: Support frame, 612: Support motor, 613: Anti-slip pad, 62: Cleaning assembly, 621: Cleaning fan, 622: Ventilation chamber, 623: Ventilation hole, 7: Length positioning assembly, 701: Positioning telescopic rod, 702: Positioning plate, 703: Adjusting rack, 704: Trigger wedge, 705: Trigger gear, 706: Adjusting gear. Detailed Implementation

[0027] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art. Example 1

[0028] An automated metal cutting device for power engineering, such as Figure 1-10As shown, the device includes a frame 1, a pad 2, a support shell 3, a self-clamping positioning mechanism 4, a cutting mechanism 5, a lower support positioning mechanism 6, and a length positioning component 7. The pad 2 is fixed to the upper side of the frame 1, and the support shell 3 is fixed to the upper side of the pad 2. Both the self-clamping positioning mechanism 4 and the cutting mechanism 5 are located in the support shell 3. The self-clamping positioning mechanism 4 is used to automatically position and synchronously clamp the metal workpiece. The lower support positioning mechanism 6 and the length positioning component 7 are located within the frame 1 and the pad 2. The lower support positioning mechanism 6 is used to provide adaptive support to the bottom of the metal workpiece, and the length positioning component 7 is used to precisely limit the length of the metal workpiece. The self-clamping positioning mechanism 4 and the lower support positioning mechanism 6 cooperate to achieve circumferential synchronous clamping and positioning of the metal workpiece. Its characteristic is: like Figures 2-4 As shown, the self-clamping positioning mechanism 4 includes a self-positioning component 41 for positioning and fixing the metal workpiece. The self-positioning component 41 includes a uniformly distributed positioning flap 411 and a number of elastic positioning blocks 412. The left end of the uniformly distributed positioning flap 411 is hinged to the support shell 3, and the other end is fixed together. The number of elastic positioning blocks 412 is disposed on the side of the positioning flap 411 near the pad 2. A clamping component 42 is disposed on the positioning flap 411. The clamping component 42 is used to control the elastic positioning blocks 412 to clamp and position the metal workpiece. By clamping the metal workpiece in the circumferential direction through the elastic positioning blocks 412, the force on the metal workpiece is uniform and automatically centered, preventing the metal workpiece from deflecting or slipping during cutting, and ensuring that the cut surface is vertical and the dimensions are accurate. like Figure 2 , Figure 7 and Figure 8 As shown, the lower support positioning mechanism 6 includes a support component 61 for supporting and positioning the lower side of the workpiece. The support component 61 includes a support frame 611 and a support motor 612. The support frame 611 is slidably connected to the frame 1 and the pad 2. The support frame 611 is in the reverse M shape, which can form multi-point stable support for the workpiece, while avoiding the cutting path and the space for falling debris, thus improving the stability of the support. An anti-slip pad 613 is provided on the upper side of the support frame 611 to increase the friction between the metal workpiece and the support frame, prevent the workpiece from sliding or shifting during the cutting process, and ensure stable positioning and clamping. The support motor 612 is located on the frame 1, and the output end of the support motor 612 is threadedly engaged with the support frame 611. A cleaning component 62 is provided on the frame 1 to clean the metal debris generated during cutting.

[0029] like Figure 4As shown, a scissor-type telescopic structure 413 is provided inside the positioning flap 411. The elastic positioning block 412 is correspondingly positioned at the intersection with the scissor-type telescopic structure 413. The elastic positioning block 412 and the scissor-type telescopic structure 413 are slidably connected at the intersection. A trigger plate 414 is provided inside the positioning flap 411. The trigger plate 414 contacts and cooperates with the elastic positioning block 412. Through the scissor-type telescopic structure 413, all elastic positioning blocks 412 are driven to retract or expand synchronously, realizing circumferential synchronous clamping and automatic alignment of the metal workpiece, ensuring uniform clamping, no eccentricity, and no deviation. The trigger plate 414 is used to sense the pressure position of the elastic positioning block 412, realize the automatic triggering of metal workpiece contact confirmation and clamping action, ensure accurate clamping timing, and higher degree of automation of clamping.

[0030] like Figure 5 As shown, an elastic handle 415 is slidably connected to the right side of the positioning flap 411. The elastic handle 415 is fixedly connected to a limiting wedge 416. The limiting wedge 416 is slidably connected to the positioning flap 411 and slidably connected to the pad 2. The pad 2 is provided with a limiting groove that matches the limiting wedge 416. The limiting wedge 416 can be quickly fixed and locked to prevent loosening and displacement during cutting, thereby improving clamping efficiency and operational safety.

[0031] like Figure 3 and Figure 4 As shown, the clamping assembly 42 includes a clamping plate 421 slidably connected to the positioning flap 411. The positioning flap 411 is fixedly connected to the left end of the scissor telescopic structure 413. An elastic element, which is a spring, is provided between the clamping plate 421 and the positioning flap 411. A clamping telescopic rod 422 is fixedly connected to the positioning flap 411. The telescopic end of the clamping telescopic rod 422 is slidably connected to the clamping plate 421. An elastic element, which is a spring, is provided between the telescopic end of the clamping telescopic rod 422 and the clamping plate 421. The elastic coefficient of the elastic element between the telescopic end of the clamping telescopic rod 422 and the clamping plate 421 is greater than the elastic coefficient of the elastic element between the positioning flap 411 and the positioning flap 411. The clamping telescopic rod 422 drives the scissor telescopic structure 413 to retract, providing a stable clamping force for the elastic positioning block 412. The graded elastic design enables adaptive and uniform clamping of workpieces of different thicknesses.

[0032] like Figure 9 As shown, the cutting mechanism 5 includes a power motor 501 and a cutting component 502. The output end of the power motor 501 is engaged with the lead screw of the cutting component 502. A collection frame 503 is fixedly connected to the side of the cutting component 502 near the power motor 501. An air suction pipe 504 is provided inside the collection frame 503. The air suction pipe 504 is connected to an external negative pressure device to collect metal chips and dust generated during cutting, prevent chips from splashing and accumulating, keep the device clean, and prevent the mechanism from jamming.

[0033] like Figure 7 and Figure 8 As shown, the cleaning component 62 includes a cleaning fan 621 located on the lower side of the frame 1, a ventilation chamber 622 located inside the support frame 611, the ventilation chamber 622 being connected to the cleaning fan 621, and evenly distributed ventilation holes 623 on the support frame 611. The ventilation chamber 622 is connected to the outside through the ventilation holes 623. The lower side of the metal workpiece is cleaned through the ventilation holes 623, and metal debris generated during cutting is blown away in a timely manner to prevent debris accumulation from affecting support and positioning, thus ensuring smooth operation of the device and stable cutting accuracy.

[0034] like Figure 6 As shown, the positioning flap 411 is provided with a ventilation slot 417 that communicates with the cleaning fan 621. The positioning flap 411 is provided with evenly distributed air outlets 418. The ventilation slot 417 communicates with the outside through the air outlets 418. The upper side of the metal workpiece is cleaned through the air outlets 418, and cutting debris and dust are quickly blown away to ensure cutting stability and the life of the device.

[0035] like Figure 7 and Figure 10 As shown, the length positioning component 7 includes a positioning telescopic rod 701 and a positioning plate 702. The positioning telescopic rod 701 is slidably connected to the frame 1, and the positioning plate 702 is fixedly connected to the telescopic end of the positioning telescopic rod 701. The positioning plate 702 is slidably connected to the pad 2. An adjusting rack 703 is fixedly connected to the positioning telescopic rod 701. A trigger wedge 704 is slidably connected inside the support shell 3. The trigger wedge 704 is in a limiting engagement with the cutting component 502. An elastic element, which is a spring, is provided between the trigger wedge 704 and the support shell 3. A trigger gear 705 is rotatably connected to the support shell 3. The trigger gear 705 is in a transmission engagement with the trigger wedge 704. An adjusting gear 706 is fixedly connected to the trigger gear 705. The adjusting gear 706 is in a transmission engagement with the adjusting rack 703. The positioning plate 702 precisely limits the cutting length of the metal workpiece, ensuring uniform cutting dimensions. At the same time, the positioning plate 702 automatically retracts during cutting, which can avoid interference between the positioning plate 702 and the metal workpiece, ensuring a smooth, safe, and unobstructed cutting process.

[0036] When using this device to cut metal workpieces for power engineering, the operator first places the metal workpiece on the pad 2 on the frame 1. The anti-slip pad 613 on the support frame 611 increases the friction with the workpiece to prevent it from sliding. The operator controls the telescopic end of the positioning telescopic rod 701 to move, which in turn moves the positioning plate 702 until the positioning plate 702 moves to the predetermined cutting length position. Then, the end of the metal workpiece is placed against the positioning plate 702 to complete the cutting length and positioning. The operator rotates the positioning flip plate 411 clockwise so that the evenly distributed positioning flip plates 411 rotate synchronously around the hinge point with the support shell 3. The positioning flip plate 411 drives the elastic positioning block 412 to move closer to the upper surface of the metal workpiece. The positioning flip plate 411 continues to rotate downward so that the limiting wedge block 416 engages with the limiting groove of the pad 2 to lock and fix the positioning flip plate 411.

[0037] After the positioning flap 411 is locked, the support motor 612 is started. The output end of the support motor 612 drives the support frame 611 to move upward through a threaded connection. The support frame 611 drives the metal workpiece to move upward until the upper surface of the metal workpiece contacts several evenly distributed elastic positioning blocks 412 on the lower side of the positioning flap 411 and pushes it upward. The springs of the elastic positioning blocks 412 compress and store force until the upper surface of the corresponding elastic positioning block 412 contacts the trigger plate 414. The trigger plate 414 sends an electrical signal to the support motor 612, the support motor 612 stops and starts the clamping telescopic rod 422. The telescopic end of the clamping telescopic rod 422 drives the clamping plate 421 to move to the right through the spring force. The spring between the clamping plate 421 and the positioning flip plate 411 is compressed and stored. The clamping plate 421 drives the scissor telescopic structure 413 to retract. The scissor telescopic structure 413 synchronously drives all the elastic positioning blocks 412 to move to the right in the same direction. This allows the elastic positioning blocks 412 on both sides of the metal workpiece to clamp the metal workpiece circumferentially synchronously. At the same time, the upper elastic positioning block 412 maintains the downward clamping force on the metal workpiece through the spring force, ensuring that the workpiece is evenly stressed, automatically aligned and does not shift.

[0038] After the circumferential clamping and positioning of the metal workpiece is completed, the power motor 501 is started. The output end of the power motor 501 drives the cutting assembly 502 to move through the lead screw to perform cutting operations on the metal workpiece. When the cutting assembly 502 moves, the trigger wedge 704 is released. The trigger wedge 704 moves forward under the action of the spring. The trigger wedge 704 drives the adjusting gear 706 to rotate through the trigger gear 705. The adjusting gear 706 drives the adjusting rack 703 and the positioning telescopic rod 701 to move. The positioning telescopic rod 701 drives the positioning plate 702 to move backward to avoid contact interference with the cutting action during positioning.

[0039] During the cutting process, the cleaning fan 621 is started, and the airflow blows upward and to the left through the ventilation chamber 622 and ventilation hole 623 in the support frame 611, keeping the airflow clean on the lower surface of the metal workpiece. At the same time, the airflow blows downward and to the left through the ventilation groove 417 and air outlet 418 in the positioning flap 411, keeping the airflow clean on the lower surface of the metal workpiece, blowing the metal debris generated during cutting away from the workpiece and the positioning surface. The collection frame 503 on the left side of the cutting assembly 502 moves synchronously with the cutting assembly 502. The suction pipe 504 is connected to the external negative pressure device, which collects the debris through the negative pressure of the collection frame 503 to prevent the debris from accumulating and jamming the mechanism.

[0040] After cutting, the power motor 501 flips and drives the cutting assembly 502 to reset, triggering the wedge block 704 to contact the cutting assembly 502 and push it backward to reset, causing the positioning telescopic rod 701 and the positioning plate 702 to return to the predetermined length position, realizing automatic reset positioning of the cutting length. The clamping telescopic rod 422 resets, causing the scissor-type telescopic structure 413 to unfold, the elastic positioning block 412 to release the workpiece, and the control support motor 612 drives the support frame 611 to move downward to reset, so that the upper surface of the metal workpiece is released from the squeezing contact with the elastic positioning block 412. The elastic positioning block 412 resets under the action of the spring, releasing the circumferential clamping positioning of the metal workpiece. Pulling the elastic handle 415 to the right causes the limiting wedge block 416 to disengage from the limiting groove. At this time, the positioning flip plate 411 flips upward to remove the cut workpiece, thus completing one automated cutting operation.

[0041] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. An automated metal cutting device for electrical engineering, characterized by: The utility model relates to a cutting device for metal workpiece, including frame (1), backing plate (2), support shell (3), self -clamping positioning mechanism (4), cutting mechanism (5), lower support positioning mechanism (6) and length positioning assembly (7), backing plate (2) is fixedly connected on the upper side of frame (1), support shell (3) is fixedly connected on the upper side of backing plate (2), self -clamping positioning mechanism (4) and cutting mechanism (5) are all arranged in support shell (3), lower support positioning mechanism (6) and length positioning assembly (7) are arranged in frame (1) and backing plate (2), self -clamping positioning mechanism (4) is cooperated with lower support positioning mechanism (6), realizes the circumferential synchronous clamping positioning of metal workpiece, and its characterized in that: The self -clamping positioning mechanism (4) includes self -positioning assembly (41), and self -positioning assembly (41) is used for positioning and fixing metal workpiece, and self -positioning assembly (41) includes evenly distributed positioning flap (411) and a plurality of elastic positioning blocks (412), evenly distributed positioning flap (411) one end is hinged with support shell (3), and its other end is fixedly connected together, a plurality of elastic positioning blocks (412) are arranged on the side of positioning flap (411) close to backing plate (2), and clamping assembly (42) is arranged on positioning flap (411), and clamping assembly (42) is used to control the elastic positioning block (412) and is clamped to the positioning of metal workpiece; The lower support positioning mechanism (6) includes support assembly (61), and support assembly (61) is used for supporting and positioning the lower side of metal workpiece, and support assembly (61) includes support frame (611) and support motor (612), support frame (611) is simultaneously connected in frame (1) and backing plate (2) with sliding, the side of support frame (611) close to positioning flap (411) is provided with antiskid pad (613), support motor (612) is arranged in frame (1), and the output end of support motor (612) is in screw thread cooperation with support frame (611), and frame (1) is provided with cleaning assembly (62), and cleaning assembly (62) is used to clean the metal scrap produced by cutting.

2. An automated metal cutting device for electrical engineering according to claim 1, characterized in that: The positioning flap (411) is provided with a scissor type telescopic structure (413) inside, the intersection of the elastic positioning block (412) and the scissor type telescopic structure (413) is correspondingly provided, the intersection of the elastic positioning block (412) and the scissor type telescopic structure (413) is connected with sliding, the positioning flap (411) is provided with a trigger plate (414) inside, and the trigger plate (414) is in contact with the elastic positioning block (412).

3. An automated metal cutting device for power engineering according to claim 2, characterized in that: The positioning flap (411) is slidably connected with an elastic handle (415) on the side away from the support shell (3), the elastic handle (415) is fixedly connected with a limiting wedge (416), the limiting wedge (416) is slidably connected with the positioning flap (411), the limiting wedge (416) is slidably connected with the backing plate (2), and the backing plate (2) is provided with a limiting groove matched with the limiting wedge (416).

4. An automated metal cutting device for power engineering according to claim 3, characterized in that: The clamping assembly (42) comprises a clamping plate (421), the clamping plate (421) is slidably connected with the positioning flap (411), the positioning flap (411) is fixedly connected with one end of the scissor-type telescopic structure (413), and the elastic element is arranged between the clamping plate (421) and the positioning flap (411). The positioning flap (411) is fixedly connected with a clamping telescopic rod (422), the telescopic end of the clamping telescopic rod (422) is slidably connected with the clamping plate (421), and the elastic element is arranged between the telescopic end of the clamping telescopic rod (422) and the clamping plate (421). The elastic coefficient of the elastic element between the telescopic end of the clamping telescopic rod (422) and the clamping plate (421) is greater than the elastic coefficient of the elastic element between the positioning flap (411) and the positioning flap (411).

5. An automated metal cutting device for power engineering according to claim 4, characterized in that: The cutting mechanism (5) comprises a power motor (501) and a cutting assembly (502), and the output end of the power motor (501) is in screw rod cooperation with the cutting assembly (502).

6. An automated metal cutting device for power engineering according to claim 5, characterized in that: The cutting assembly (502) is fixedly connected with a collecting frame (503) on the side close to the power motor (501), the collecting frame (503) is provided with an air suction pipe (504) therein, and the air suction pipe (504) is in communication with an external negative pressure device.

7. An automated metal cutting device for power engineering according to claim 6, characterized in that: The cleaning assembly (62) comprises a cleaning fan (621), the cleaning fan (621) is arranged in the rack (1), the support frame (611) is provided with an air passage (622) therein, the air passage (622) is in communication with the cleaning fan (621), and the support frame (611) is provided with uniformly distributed air holes (623), and the air passage (622) is in communication with the outside through the air holes (623).

8. An automated metal cutting device for power engineering according to claim 7, characterized in that: The positioning flap (411) is provided with an air passage (417) therein, the air passage (417) is in communication with the cleaning fan (621), and the positioning flap (411) is provided with uniformly distributed air outlets (418), and the air passage (417) is in communication with the outside through the air outlets (418).

9. An automated metal cutting device for power engineering according to claim 8, characterized in that: The length positioning assembly (7) comprises a positioning telescopic rod (701) and a positioning plate (702), the positioning telescopic rod (701) is slidably connected with the rack (1), the positioning plate (702) is fixedly connected with the telescopic end of the positioning telescopic rod (701), and the positioning plate (702) is slidably connected with the backing plate (2).

10. An automated metal cutting device for power engineering according to claim 9, characterized in that: The positioning telescopic rod (701) is fixedly connected to an adjusting rack (703). A trigger wedge (704) is slidably connected inside the support shell (3). The trigger wedge (704) is in a limiting fit with the cutting assembly (502). An elastic element is provided between the trigger wedge (704) and the support shell (3). The support shell (3) is rotatably connected to a trigger gear (705). The trigger gear (705) is in a transmission fit with the trigger wedge (704). An adjusting gear (706) is fixedly connected to the trigger gear (705). The adjusting gear (706) is in a transmission fit with the adjusting rack (703).

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