Plate hole punching device and method

Abstract

The present invention relates to the technical field of plate processing, and in particular to a plate opening device and method. It includes an installation and adjustment frame, a clamping assembly, a support and dustproof assembly, and a hole opening assembly; the clamping assembly is located in the middle of the installation and adjustment frame to clamp a section of plate; the support and dustproof assembly is located on the lower adjustment end to support and prevent dust at three points from the bottom of the plate; the hole opening assembly is located on the upper adjustment end to open holes at three points from the top of the plate. The present invention sets a support and dustproof assembly to cooperate with the hole opening assembly, and the support and dustproof angles are adjusted by rotating the support and dustproof parts on both sides. The cover body fits the outer periphery of the hole opening position to achieve comprehensive support, and the side panels on both sides are rotated to adjust the hole opening angle, so that the cover body corresponds to the hole opening part one by one. On the one hand, targeted support is achieved to improve the stability of the hole opening, accelerate cooling and reduce the possibility of plate deformation. On the other hand, smoke and debris in the hole opening process are adsorbed to reduce environmental pollution.

Description

Technical Field

[0001] The invention relates to the field of plate processing, and in particular to a plate hole punching device and method. Background Art

[0002] Guardrail panels are the main material used to make guardrails, and are widely used, including but not limited to residential areas, single-family villas, factory buildings, schools and hospitals, shopping malls, office buildings, office buildings, venues, bases, stations and airports, stadiums, parks, scenic spots, and municipal public facilities. When processing guardrail panels, holes are punched at both ends of the panels for installation needs.

[0003] The Chinese patent document with authorization announcement number CN218611786U relates to a hole-opening machine for processing highly weather-resistant aluminum honeycomb panels, including a frame, a transport mechanism for transporting panels and a hole-opening mechanism for opening holes are arranged on the top of the frame, and the transport mechanism is located inside the hole-opening mechanism, and clamping mechanisms located inside the hole-opening mechanism are arranged on both sides of the transport mechanism, and the clamping mechanism includes a main clamping assembly and a side support assembly.

[0004] The existing hole-opening devices mainly work on flat plates, while many guardrail plate structures are corrugated ( Figure 1 ), punching needs to be done on the top and side surfaces, so the existing plate punching device and method are not very compatible with the guardrail plate. In addition, the existing plate punching device and method mainly locate the plate periphery when positioning the plate, which is far away from the specific hole position. This method has a poor clamping effect on the corrugated guardrail plate and will also affect the hole effect. Summary of the invention

[0005] In view of the problems existing in the background technology, a plate opening device and method are proposed, in which a supporting dustproof component and a hole opening component are arranged to cooperate, and the supporting dustproof parts on both sides are rotated to adjust the supporting dustproof angle, and the cover body is fitted to the periphery of the hole opening position to achieve comprehensive support, and the hole opening angle is adjusted by rotating the side panels on both sides, so that the cover body and the hole opening parts correspond one by one. On the one hand, targeted support is achieved, the stability of the hole opening is improved, and the possibility of plate deformation can be reduced by accelerating the cooling. On the other hand, smoke and debris in the hole opening process are adsorbed to reduce environmental pollution.

[0006] The present invention proposes a plate opening device, comprising an installation adjustment frame, a clamping assembly, a supporting dustproof assembly and a hole opening assembly; the installation adjustment frame is provided with an upper and a lower adjusting end that works symmetrically, and the spacing between the two sets of adjusting ends is adjustable and can be translated and rotated; the clamping assembly is located in the middle of the installation adjustment frame, and the two sets of clamping ends clamp a section of the plate from both sides of the installation adjustment frame respectively; the supporting dustproof assembly is located on the lower adjusting end, and three sets of supporting dustproof parts with adjustable angles are provided to form a fan-shaped diffusion support structure, which supports and prevents dust at three points from the bottom of the plate; the hole opening assembly is located on the upper adjusting end, and three sets of opening parts with adjustable angles are provided to form a trapezoidal gathering hole opening structure, which performs three-point hole opening from the top of the plate. The hole opening points and the supporting dustproof points correspond one to one.

[0007] Preferably, the installation and adjustment frame includes a double-headed and bidirectional lifting drive seat; a translation drive head is arranged on the lower drive end of the lifting drive seat; a mounting frame is arranged on the translation end of the translation drive head; the upper and lower mounting frames are positioned relative to each other; a translation block is slidingly arranged in the mounting frame; and a mounting platform is rotatably arranged on a translation block.

[0008] Preferably, the clamping assembly includes a lifting frame located on a lifting drive seat; mounting frames that rise and fall synchronously with the lifting frame are arranged on both sides of the lifting frame; the mounting frames extend from both sides of the lifting drive seat, and are provided with pairs of clamping plates and adjusting parts for adjusting the spacing and angles of the clamping plates.

[0009] Preferably, the adjusting member includes a connecting seat connected to the end of the mounting frame; a rotating seat is arranged on the connecting seat; a mounting groove is opened on the rotating seat; an electromagnet is arranged in the middle of the mounting groove, and metal blocks are arranged on both sides; the clamping plate is connected to the metal blocks in a one-to-one correspondence; and a reset member is arranged between the metal block and the wall of the mounting groove.

[0010] Preferably, the paired clamping plates are magnetic plates with opposite magnetic properties, and anti-slip protrusions are provided on the clamping surfaces.

[0011] Preferably, the support dustproof assembly includes a support frame located on the mounting platform; a lifting and rotating driving member is arranged on the support frame to adjust the three groups of support dustproof members; the lifting and rotating driving member includes a lifting cylinder 1 that passes through the middle of the support frame; a group of support dustproof members is arranged on the telescopic rod of the lifting cylinder 1, and the above-mentioned group of support dustproof members includes a lifting cylinder 2 connected to the telescopic rod of the lifting cylinder 1; racks are arranged on both sides of the cylinder body of the lifting cylinder 2; gears are rotatably arranged on both sides of the support frame; the gears are meshed with the racks on the corresponding sides, and are connected one by one with the remaining two groups of support dustproof members, and the above-mentioned two groups of support dustproof members include a lifting cylinder 3 located on both sides of the lifting cylinder 2 and rotatably arranged; the lifting cylinder 3 on both sides and the lifting cylinder 2 in the middle are both provided with support dust covers.

[0012] Preferably, the supporting dust cover includes a cover body rotatably arranged on the lifting cylinder three / lifting cylinder two; a filter plate is arranged in the cover body, and a negative pressure pump is arranged on the outer wall.

[0013] Preferably, the hole opening assembly includes a top plate located on a lifting drive seat; two sides of the top plate are rotatably connected to side plates respectively; one group of hole opening members is arranged below the top plate, and the other two groups of hole opening members are respectively arranged below the two groups of side plates.

[0014] Preferably, the opening member below the side plate can slide horizontally along the side plate.

[0015] The present invention further proposes a plate hole punching method, using the plate hole punching device described above, and the hole punching steps are as follows:

[0016] Step 1: The two sets of clamping ends of the clamping assembly clamp a section of the plate from both sides of the mounting adjustment frame respectively;

[0017] Step 2: Adjust the distance between the two sets of adjustment ends of the installation adjustment frame so that the supporting dustproof component and the opening component are close to the plate;

[0018] Step 3: Adjust the support structure so that the dust-proof parts can support the dust at three points from the bottom of the plate;

[0019] Step 4: Adjust the opening structure so that the opening structure is opened at three points from the top of the plate.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects: the device has a compact and small structure, which is convenient for use at the guardrail plate installation site. The overall structure of the mounting adjustment frame support device can adjust the spacing, position and angle of the clamping component and the supporting dustproof component at the same time, making the device highly flexible. The clamping component is set to clamp a section of the plate, and the clamping height and angle are adjustable to meet the fixing requirements of the existing guardrail plate. Then the supporting dustproof component and the opening component cooperate, and the supporting dustproof parts on both sides of the plate are rotated to adjust the supporting dustproof angle. The cover body fits the outer periphery of the opening position to achieve comprehensive support. The side panels on both sides of the plate are rotated to adjust the opening angle, so that the cover body corresponds to the opening part one by one. On the one hand, targeted support is achieved, the stability of the opening is improved, and the possibility of plate deformation can be reduced by accelerating cooling. On the other hand, smoke and debris in the opening process are adsorbed to reduce environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the guardrail plate structure in the prior art;

[0022] Figure 2 It is a structural schematic diagram of the plate hole opening device in the present invention (viewing angle 1);

[0023] Figure 3It is a structural schematic diagram of the plate hole opening device in the present invention (viewing angle 2);

[0024] Figure 4 It is a structural schematic diagram of installing the adjustment frame in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the clamping assembly in the present invention;

[0026] Figure 6 for Figure 5 The enlarged schematic diagram of point A in the middle;

[0027] Figure 7 It is a schematic diagram of the structure of the supporting dustproof component in the present invention;

[0028] Figure 8 A cross-sectional view of a supporting dustproof component in the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the hole opening component in the present invention.

[0030] Reference numerals: 1. mounting and adjusting frame; 101. lifting and lowering driving seat; 102. translation driving head; 103. mounting frame; 104. translation block 1; 105. mounting table; 106. lead screw 1; 2. clamping assembly; 201. lifting and lowering frame; 202. mounting frame; 203. lead screw 2; 204. adjusting member; 204a. rotating seat; 204b. connecting seat; 204c. mounting groove; 204d. electromagnet; 204e. metal block; 204f. reset member; 205. Clamping plate; 206. Anti-skid protrusion; 3. Support dustproof assembly; 301. Support frame; 302. Lifting cylinder one; 303. Lifting cylinder two; 304. Lifting cylinder three; 305. Rack; 306. Gear; 307. Support dustproof cover; 307a. Cover body; 307b. Negative pressure pump; 307c. Filter plate; 4. Opening assembly; 401. Top plate; 402. Side plate; 403. Opening piece; 404. Screw three; 405. Translation block two. DETAILED DESCRIPTION

[0031] Embodiment 1, as Figure 2-3As shown, a plate hole opening device proposed by the present invention includes an installation adjustment frame 1, a clamping assembly 2, a supporting dustproof assembly 3 and a hole opening assembly 4; the installation adjustment frame 1 is provided with an upper and a lower adjusting end that works symmetrically, and the spacing between the two sets of adjusting ends is adjustable and can be translated and rotated; the clamping assembly 2 is located in the middle of the installation adjustment frame 1, and the two sets of clamping ends clamp a section of plate from both sides of the installation adjustment frame 1 respectively; the supporting dustproof assembly 3 is located on the lower adjusting end, and three sets of supporting dustproof parts with adjustable angles are provided to form a fan-shaped diffusion support structure, which supports dust at three points from the bottom of the plate; the hole opening assembly 4 is located on the upper adjusting end, and three sets of opening parts 403 with adjustable angles are provided to form a trapezoidal gathering hole opening structure, which opens holes at three points from the top of the plate. The hole opening points and the supporting dustproof points correspond one to one.

[0032] like Figure 4 As shown, the installation and adjustment frame 1 includes a double-headed and bidirectional lifting drive seat 101; a translation drive head 102 is arranged on the lower driving end of the lifting drive seat 101; a mounting frame 103 is arranged on the translation end of the translation drive head 102; the upper and lower mounting frames 103 are relatively positioned; a translation block 104 is slidingly arranged in the mounting frame 103; a mounting platform 105 is rotatably arranged on the translation block 104, and the mounting platform 105 is the aforementioned adjustment end, which is used to connect and support the dustproof component 3 and the opening component 4.

[0033] It should be further explained that two groups of cylinders with opposite driving directions are arranged in the lifting drive seat 101, and the spacing between the connecting support dustproof component 3 and the opening component 4 is adjusted by synchronous / independent operation. The lifting drive seat 101 is a one-way cylinder, which is used to adjust the horizontal position (Y-axis direction) of the connecting support dustproof component 3 and the opening component 4, so that the support dustproof component 3 and the opening component 4 are located in the range to be opened. The lifting drive seat 101 and the lifting drive seat 101 are connected by a curved pipe, and finally form an I-shaped structure. When working, it is necessary to cooperate with other installation structures to suspend and fix the lifting drive seat 101 in the air, or the lifting drive seat 101 can be held by hand.

[0034] A lead screw 106 driven to rotate by a motor 1 is disposed in the mounting frame 103. The translation block 104 is threadedly matched with the lead screw 106 to achieve horizontal movement to adjust the horizontal position (X-axis direction) of the dust-proof support component 3 and the opening component 4. The motor 2 disposed on the translation block 104 further drives the mounting platform 105 to rotate to adjust the angle of the dust-proof support component 3 and the opening component 4.

[0035] like Figure 5As shown, the clamping assembly 2 includes a lifting frame 201 located on the lifting drive base 101; both sides of the lifting frame 201 are provided with mounting frames 202 that are lifted and lowered synchronously with it; the mounting frames 202 extend from both sides of the lifting drive base 101, and are provided with a pair of clamping plates 205 and adjusting parts 204 for adjusting the spacing and angle of the clamping plates 205.

[0036] It should be further explained that the back side of the lifting drive seat 101 is provided with a motor 3 and a screw 203 driven by the motor 3 to rotate; the lifting frame 201 is lifted and lowered by being threadedly connected with the screw 203. The mounting frame 202 can drive the clamping plate 205 (the clamping end mentioned above) to rise and fall synchronously to adjust the height of the plate after clamping.

[0037] like Figure 6 As shown, the adjusting member 204 includes a connecting seat 204b connected to the end of the mounting frame 202; a rotating seat 204a driven to rotate by a motor 4 is arranged on the connecting seat 204b; a mounting groove 204c is provided on the rotating seat 204a; an electromagnet 204d is arranged in the middle of the mounting groove 204c, and metal blocks 204e are arranged on both sides.

[0038] It should be further explained that the clamping plate 205 is connected to the metal block 204e in a one-to-one correspondence.

[0039] It should be further explained that a reset member 204f is provided between the metal block 204e and the wall of the installation slot 204c; the reset member 204f is a spring.

[0040] When clamping, the electromagnet 204d is powered off, and the distance between the clamping plates 205 is large. When the plate is placed between the two sets of clamping plates 205, the electromagnet 204d is powered on, and the metal block 204e is attracted, so that the distance between the two sets of clamping plates 205 is reduced. At the same time, the rotating seat 204a rotates until the clamping plate 205 is parallel to the corresponding plate position, and finally the plate is clamped.

[0041] It should be further explained that the paired clamping plates 205 are magnetic plates with opposite magnetic properties, and anti-slip protrusions 206 are provided on the clamping surfaces. The plates are further clamped by the up-and-down magnetic attraction of the clamping plates 205.

[0042] like Figure 7-8 As shown, the supporting dustproof component 3 includes a supporting frame 301 located on the mounting platform 105; a lifting and rotating driving member is arranged on the supporting frame 301 to adjust the three groups of supporting dustproof members.

[0043] It should be further explained that the lifting and rotating driving member includes a lifting cylinder 1 302 that runs through the middle of the support frame 301; a group of supporting dustproof members is set on the telescopic rod of the lifting cylinder 1 302, and the above-mentioned group of supporting dustproof members includes a lifting cylinder 2 303 connected to the telescopic rod of the lifting cylinder 1 302; racks 305 are set on both sides of the cylinder body of the lifting cylinder 2 303; when the lifting cylinder 1 302 drives the lifting cylinder 2 303 to move up and down, the racks 305 are synchronously lifted and lowered. Gears 306 are respectively rotatably set on both sides of the support frame 301; the gears 306 are meshed with the racks 305 on the corresponding sides, and are connected one by one with the remaining two groups of supporting dustproof members, and the above-mentioned two groups of supporting dustproof members include lifting cylinders 3 304 located on both sides of the lifting cylinder 2 303 and rotatably set; when the racks 305 are lifted and lowered, the gears 306 rotate, and the lifting cylinders 3 304 on both sides are synchronously rotated outward / inward to adjust the working angle. Support dust covers 307 are provided on the lifting cylinders 304 on both sides and the lifting cylinder 2 303 in the middle.

[0044] It should be further explained that the rack 305 is slidably connected to the cylinder body of the lifting cylinder 302.

[0045] like Figure 8 As shown, the supporting dust cover 307 includes a cover body 307a rotatably arranged on the lifting cylinder 3 304 / lifting cylinder 2 303; the cover body 307a rotates through the cover mouth to fit the outer periphery of the opening position to achieve full support, a filter plate 307c is arranged inside the cover body 307a, and a negative pressure pump 307b is arranged on the outer wall. Through the action of the negative pressure pump 307b, a negative pressure environment is formed inside the cover body 307a to absorb smoke and debris in the opening process, and can also cool the plate. The filter plate 307c intercepts and filters large particles of debris and smoke, and then discharges them.

[0046] like Fig. 9 As shown, the hole opening component 4 includes a top plate 401 located on the lifting drive seat 101; both sides of the top plate 401 are respectively driven by motor 5 to rotate and connect the side plates 402; one group of hole opening parts 403 is arranged below the top plate 401, and the other two groups of hole opening parts 403 are respectively arranged below the two groups of side plates 402.

[0047] It should be further explained that the hole opening member 403 is a rotatable and retractable hole opener.

[0048] Before drilling, the drilling assembly 4 is driven down to the plate by the lifting drive seat 101. Then the side plate 402 is rotated to the required angle with the drilling surface of the plate (adjusted according to the drilling angle requirement), and the drilling member 403 can work.

[0049] It should be further explained that the hole-opening member 403 below the side plate 402 can slide horizontally along the side plate 402 to further adjust the position of the hole. An opening is set on the bottom surface of the side plate 402; a motor 6 and a lead screw 3 404 driven to rotate by the motor 6 are set in the opening; a translation block 2 405 threadedly connected to the lead screw 3 404 is set on the translation block 2 405; and the hole-opening member 403 is set on the translation block 2 405.

[0050] Embodiment 2: This embodiment proposes a plate hole punching method, using the plate hole punching device described in embodiment 1, and the hole punching steps are as follows:

[0051] Step 1: The two sets of clamping ends of the clamping assembly 2 clamp a section of the plate from both sides of the mounting adjustment frame 1 respectively:

[0052] S11, fixing the lifting drive seat 101 at a suitable height;

[0053] S12, placing the plate between the two groups of clamping plates 205, energizing the electromagnet 204d, adsorbing the metal block 204e, so that the distance between the two groups of clamping plates 205 is reduced; at the same time, the rotating seat 204a rotates until the clamping plate 205 is parallel to the corresponding plate position, and finally clamps the plate;

[0054] S13, the lifting frame 201 is lifted and lowered, and the mounting frame 202 can drive the clamping plate 205 to lift and lower synchronously to adjust the height of the plate after clamping;

[0055] Step 2: Adjust the distance between the two sets of adjustment ends of the installation adjustment frame 1 so that the supporting dustproof component 3 and the opening component 4 are close to the plate;

[0056] S21, the lifting drive seat 101 works to adjust the distance between the supporting dustproof component 3 and the opening component 4; the translation block 104 moves horizontally to adjust the horizontal position (X-axis direction) of the supporting dustproof component 3 and the opening component 4; the mounting table 105 rotates to adjust the angle of the supporting dustproof component 3 and the opening component 4;

[0057] Step 3: Adjust the support structure so that the dust-proof parts can support the dust at three points from the bottom of the plate;

[0058] S31, supporting the dustproof component 3 to rise to the plate lifting cylinder 1 302 to drive the lifting cylinder 2 303 to move up and down, the rack 305 rises and falls synchronously, and the gear 306 rotates at the same time, and the lifting cylinders 3 304 on both sides rotate outward / inward synchronously to adjust the working angle;

[0059] S32, the lifting cylinder 304 and the lifting cylinder 2 303 work to drive the cover body 307a to fit the outer periphery of the opening position to achieve full support;

[0060] Step 4: Adjust the opening structure so that the opening structure is opened at three points from the top of the plate;

[0061] S41, the hole opening component 4 is lowered to be close to the plate, and then the side plate 402 is rotated to form a required angle with the hole opening surface of the plate, and the hole opening component 403 can work;

[0062] S42, through the action of the negative pressure pump 307b, a negative pressure environment is formed in the cover body 307a, so as to absorb smoke and debris in the hole-opening process and cool the plate at the same time; the filter plate 307c intercepts and filters large particles of debris and smoke and then discharges them;

[0063] Step 5: After completing the hole opening of an area, the hole opening component 4 and the supporting dustproof component 3 move synchronously to carry out the next round of hole opening.

[0064] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A plate hole punching device, characterized in that: include: Install an adjustment frame (1), set an upper and a lower adjustment end that works symmetrically, and the distance between the two sets of adjustment ends is adjustable and can be translated and rotated; The clamping assembly (2) is located in the middle of the mounting and adjusting frame (1), and the two sets of clamping ends are used to clamp a section of the plate from two sides of the mounting and adjusting frame (1); A supporting dustproof component (3) is located on the lower adjustment end, and is provided with three sets of supporting dustproof parts with adjustable angles to form a fan-shaped diffusion support structure, which supports dustproof at three points from the bottom of the plate; and a hole opening assembly (4), located on the upper adjustment end, provided with three sets of hole opening members (403) with adjustable angles to form a trapezoidal gathering hole opening structure, which performs three-point hole opening from the top of the plate; The opening points and the supporting dustproof points correspond one to one; The installation adjustment frame (1) comprises a double-headed and bidirectional lifting drive seat (101); a translation drive head (102) is arranged on the upper and lower driving ends of the lifting drive seat (101); a mounting frame (103) is arranged on the translation end of the translation drive head (102); the upper and lower mounting frames (103) are positioned relative to each other; a translation block (104) is slidably arranged in the mounting frame (103); and a mounting platform (105) is rotatably arranged on the translation block (104); The supporting dustproof component (3) comprises a supporting frame (301) located on the mounting platform (105); a lifting and rotating driving member is arranged on the supporting frame (301) to adjust the three groups of supporting dustproof members; The lifting and rotating driving member comprises a lifting cylinder 1 (302) penetrating the middle of the support frame (301); a group of supporting dustproof members is arranged on the telescopic rod of the lifting cylinder 1 (302), and the group of supporting dustproof members comprises a lifting cylinder 2 (303) connected to the telescopic rod of the lifting cylinder 1 (302); racks (305) are arranged on both sides of the cylinder body of the lifting cylinder 2 (303); Gears (306) are rotatably arranged on both sides of the support frame (301); the gears (306) mesh with the racks (305) on the corresponding sides and are connected one-to-one with the remaining two groups of supporting dustproof parts, wherein the two groups of supporting dustproof parts include lifting cylinders (304) located on both sides of lifting cylinders (303) and rotatably arranged; The lifting cylinders 3 (304) on both sides and the lifting cylinder 2 (303) in the middle are both provided with supporting dust covers (307).

2. The plate hole punching device according to claim 1, characterized in that: The clamping assembly (2) comprises a lifting frame (201) located on a lifting drive seat (101); mounting frames (202) are arranged on both sides of the lifting frame (201) and are lifted and lowered synchronously with the lifting frame (201); the mounting frames (202) extend from both sides of the lifting drive seat (101) and are provided with a pair of clamping plates (205) and adjustment members (204) for adjusting the spacing and angle of the clamping plates (205).

3. The plate hole punching device according to claim 2, characterized in that: The adjusting member (204) comprises a connecting seat (204b) connected to the end of the mounting frame (202); a rotating seat (204a) is arranged on the connecting seat (204b); a mounting groove (204c) is provided on the rotating seat (204a); an electromagnet (204d) is arranged in the middle of the mounting groove (204c), and metal blocks (204e) are arranged on both sides; The clamping plate (205) is connected to the metal block (204e) in a one-to-one correspondence; A reset piece (204f) is arranged between the metal block (204e) and the wall of the installation groove (204c).

4. The plate hole punching device according to claim 3, characterized in that: The paired clamping plates (205) are magnetic attraction plates with opposite magnetic properties, and anti-slip protrusions (206) are provided on the clamping surfaces.

5. The plate hole punching device according to claim 4, characterized in that: The supporting dust cover (307) comprises a cover body (307a) rotatably arranged on the lifting cylinder three (304) / lifting cylinder two (303); a filter plate (307c) is arranged inside the cover body (307a), and a negative pressure pump (307b) is arranged on the outer wall.

6. The plate hole punching device according to claim 1, characterized in that: The hole-opening assembly (4) comprises a top plate (401) located on a lifting drive seat (101); two sides of the top plate (401) are rotatably connected to side plates (402) respectively; one group of hole-opening members (403) is arranged below the top plate (401), and the other two groups of hole-opening members (403) are arranged below two groups of side plates (402) respectively.

7. The plate hole punching device according to claim 6, characterized in that: The opening member (403) below the side plate (402) can slide horizontally along the side plate (402).

8. A method for punching a hole in a plate, characterized in that: Using the plate hole punching device described in claim 1, the hole punching steps are as follows: Step 1: The two sets of clamping ends of the clamping assembly (2) clamp a section of the plate from both sides of the mounting adjustment frame (1); Step 2: Adjust the distance between the two sets of adjustment ends of the installation adjustment frame (1) so that the supporting dustproof component (3) and the opening component (4) are close to the plate; Step 3: Adjust the support structure so that the dust-proof parts can support the dust at three points from the bottom of the plate; Step 4: Adjust the opening structure so that the opening structure has three points of opening from the top of the plate.

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