Drilling device for sheet metal part production and machining

Abstract

The invention discloses a drilling device for sheet metal part production and machining, relates to the technical field of sheet metal machining, and realizes accurate positioning of a workpiece in a machining plane through coordination and cooperation of a clamping assembly and a drilling assembly. The drilling assembly integrates drilling and chamfering functions, drilling and deburring procedures can be continuously completed in single-time feeding, and the machining efficiency is effectively improved. And an arranged negative pressure adsorption device can remove scraps wound on the drill bit in real time, and the safety and visibility of the machining process are guaranteed through a liftable transparent protective cover. The rotary atomization cooling system achieves precise cooling of a machining point, and the service life of a cutter is prolonged. And the waste recovery system realizes recycling of the cooling liquid through filtration and separation. The cleaning assembly can clean the surface of the workpiece when the workpiece enters and exits. The multifunctional metal plate drilling machine integrates multiple functions of drilling, chamfering, dust removal, cooling, protection and cleaning, solves the problems of low efficiency, poor quality and the like in traditional metal plate drilling, and realizes efficient, accurate and clean automatic machining.

Description

TECHNICAL FIELD

[0001] The present application relates to sheet metal processing technical field, especially to a drilling device for sheet metal production and processing. BACKGROUND

[0002] In the drilling process of sheet metal parts, the following technical problems exist: first, the metal debris generated by drilling is easy to wrap around the drill bit, which not only affects the accuracy and quality of subsequent drilling, but also needs manual cleaning, which seriously restricts production efficiency; second, high-speed drilling generates a lot of heat, which can easily lead to increased drill wear and sheet metal deformation if not cooled sufficiently; third, the traditional fixed cooling system cannot evenly cover the entire processing area, and the cooling effect is limited; fourth, the burrs generated at the hole after drilling need to be treated twice, which increases the process and cost; finally, the flying debris and cooling liquid during processing can pollute the working environment, which is inconvenient to clean and has safety hazards. Therefore, an automated drilling device that integrates efficient dust removal, precise cooling, automatic deburring, and waste recycling is needed to solve the above problems. SUMMARY

[0003] The present application provides a drilling device for sheet metal production and processing, which comprises a workbench, a drilling assembly, a cooling assembly, a clamping assembly and a cleaning assembly. The top of the workbench is provided with a mounting bracket at one end, the inner wall of the mounting bracket is provided with a drilling assembly at the top, the inner wall of the mounting bracket is provided with a cooling assembly on both sides, the top of the workbench is provided with a clamping assembly on both sides, and the end of the workbench away from the mounting bracket is provided with a cleaning assembly. The drilling assembly comprises a first lead screw, a first connecting block, a first electric push rod, a second motor and a drill bit. The top of the inner wall of the mounting bracket is provided with a second mounting groove, the first lead screw is rotatably connected in the second mounting groove, the first motor is arranged on the side wall of the mounting bracket for driving the first lead screw, the first connecting block is threadedly connected to the first lead screw, the first connecting block is fixedly connected to the first electric push rod through the first connecting plate at the bottom, the bottom output end of the first electric push rod is fixedly connected to the top of the second connecting plate, the bottom of the second connecting plate is fixedly connected to the top of the second motor, the bottom output end of the second motor is rotatably connected to the drill bit through the first connecting column, and the side of the drill bit at the bottom of the first connecting column is further provided with a chamfering tool.

[0004] Preferably, the top of the mounting bracket is provided with a negative pressure device, the bottom of the negative pressure device is provided with a telescopic pipe, and the end of the telescopic pipe away from the negative pressure device is provided with a negative pressure suction head.

[0005] Preferably, the cooling assembly comprises a connecting pipe, a third motor, a second connecting column, a cooling liquid tank and a liquid supply pipe. The inner wall of the mounting frame is provided with a third mounting groove on both sides, a connecting pipe is rotatably connected in the third mounting groove, a plurality of atomizing nozzles are arranged on the connecting pipe, an equipment groove is arranged above the end of the third mounting groove away from the workbench, a third motor is arranged in the equipment groove, the bottom output end of the third motor is rotatably connected to the top of the second connecting column, the second connecting column penetrates through the equipment groove and is provided with a driving bevel gear, the end of the connecting pipe corresponds to the position of the driving bevel gear and is provided with a driven bevel gear, and the driving bevel gear is engaged with the driven bevel gear. The side of the mounting frame away from the workbench on the workbench is provided with a cooling liquid tank, liquid supply pipes are arranged on both sides of the cooling liquid tank, and one end of the liquid supply pipe away from the cooling liquid tank is fixedly connected to one end of the connecting pipe away from the workbench.

[0006] Preferably, the end of the mounting frame near the workbench on both sides of the inner wall is provided with a fourth mounting groove, a second screw rod is rotatably connected in the fourth mounting groove, a fourth motor for driving the second screw rod is arranged on the top of the mounting frame, a second connecting block is threadedly connected to the second screw rod, and the sides of the second connecting blocks opposite to each other are fixedly connected to the sides of the protective cover, respectively.

[0007] Preferably, a drilling table is arranged below the mounting frame on the top of the workbench, a plurality of waste grooves are arranged on the drilling table, a collecting box is arranged on the bottom of the workbench below the drilling table, a drawer is arranged on the upper end of the collecting box, a filter screen is arranged on the bottom of the drawer, dovetail protrusions are arranged on both sides of the drawer, dovetail grooves are arranged on the inner wall of the collecting box corresponding to the dovetail protrusions, the drawer and the collecting box are detachably connected through the dovetail connection of the dovetail protrusions and the dovetail grooves, the lower end of the collecting box is fixedly connected to one end of a water return pipe through a water pump, and the other end of the water return pipe is fixedly connected to the top of the cooling liquid tank.

[0008] Preferably, the clamping assembly comprises a third screw rod, a third connecting block, a connecting frame, and a second electric push rod. The side of the workbench opposite to the side of the top of the workbench corresponding to the third mounting groove is provided with a first mounting groove, a third screw rod is rotatably connected in the first mounting groove, a fifth motor for driving the third screw rod is arranged on the side wall of the workbench, a plurality of third connecting blocks are threadedly connected to the third screw rod, and the side of the third connecting block near the workbench is fixedly connected to one side of the connecting frame.

[0009] Preferably, the cleaning assembly comprises a mounting plate, a second spring, and a third connecting plate. The side wall away from the both sides of the top of the workbench is provided with a sliding groove, and a mounting plate is arranged above the workbench, and the mounting plate is slidably connected with the sliding groove through sliding blocks arranged at both ends of the mounting plate, and threaded rods are arranged at both ends of the top of the mounting plate, and the bottom of the mounting plate is movably connected with the top of a third connecting plate through a plurality of second springs, and a brush is arranged on the bottom of the third connecting plate.

[0010] Preferably, the fourth corners of the bottom of the second connecting plate are provided with telescopic rods, the bottom output end of the telescopic rod is fixedly connected with the top of the pressing plate, the outer periphery of the telescopic rod is provided with a first spring, and the middle of the pressing plate is provided with a through hole.

[0011] Preferably, the protective cover is made of acrylic material.

[0012] Compared with the prior art, the present application has the following advantages: By integrating drilling, chamfering, debris removal, cooling and cleaning functions, the integration and automation of sheet metal part drilling are realized, wherein the chamfering cutter arranged beside the drill bit enables continuous drilling and deburring in one feeding, greatly improving the processing efficiency and ensuring the quality of the hole. The negative pressure adsorption system can timely remove the debris wrapped around the drill bit, combined with the fully enclosed protective cover and the detachable filter drawer, effectively collecting different size waste, preventing splashing, and ensuring the cleanliness and safety of the equipment and environment. Through the motor-driven rotatable atomizing nozzle, precise and uniform coverage of the cooling liquid is realized, which improves the cooling efficiency and prolongs the service life of the drill bit. At the same time, each component is driven by a motor and a lead screw, realizing precise automatic control and flexible production, and adapting to different sizes of workpieces. In addition, the recycling system of the cooling liquid embodies the energy-saving and environmental protection concept, effectively reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The three-dimensional structure schematic diagram of the present application is shown; Figure 2 The three-dimensional structure side view of the present application is shown; Figure 3 The internal structure cutaway view of the present application is shown; Figure 4 The enlarged structure schematic diagram of A in the present application is shown; Figure 3 The enlarged structure schematic diagram of B in the present application is shown; Figure 5 Figure 3 The enlarged structure schematic diagram of C in the present application is shown; Figure 6 The enlarged structure schematic diagram of D in the present application is shown; Figure 3 The enlarged structure schematic diagram of D in the present application is shown; Figure 7 Figure 3 The enlarged structure schematic diagram of D in the present application is shown; Figure 8 The enlarged structure schematic diagram of D in the present application is shown; Figure 3 ​​An enlarged structural schematic view at E in FIG. Figure 9 An embodiment of the present application is shown Figure 3 An enlarged structural schematic view at F in FIG. Figure 10 An embodiment of the present application is shown Figure 4 An enlarged structural schematic view at G in FIG.

[0014] Wherein: 1, workbench; 101, drilling table; 1011, waste groove; 102, first mounting groove; 103, sliding groove; 2, mounting frame; 201, second mounting groove; 202, third mounting groove; 203, equipment groove; 204, fourth mounting groove; 205, limiting groove; 3, first lead screw; 301, first motor; 4, first connecting block; 5, first connecting plate; 6, first electric push rod; 7, second connecting plate; 8, telescopic rod; 9, first spring; 10, pressing plate; 1001, through hole; 11, second motor; 12, first connecting column; 13, drill bit; 14, chamfering tool; 15, negative pressure device; 16, telescopic pipe; 1601, negative pressure suction head; 17, connecting pipe; 1701, driven bevel gear; 18, atomizing nozzle; 19, third motor; 20, second connecting column; 2001, driving bevel gear; 21, cooling liquid tank; 22, liquid supply pipe; 23, second lead screw; 2301, fourth motor; 24, second connecting block; 25, protective cover; 26, collection tank; 2601, dovetail groove; 27, drawer; 2701, filter screen; 2702, dovetail protrusion; 28, water pump; 29, return pipe; 30, third lead screw; 3001, fifth motor; 31, third connecting block; 32, connecting frame; 33, second electric push rod; 34, clamping plate; 35, mounting plate; 36, sliding block; 37, second spring; 38, third connecting plate; 39, brush; 40, screw rod. DETAILED DESCRIPTION

[0015] Various exemplary embodiments, features, and aspects of the present disclosure will be described below in detail with reference to the accompanying drawings. The same reference numbers in the drawings represent the same elements or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0016] The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0017] In addition, for the purpose of convenience and brevity, detailed descriptions of well-known functions and structures incorporated in the present disclosure can be omitted. It will be appreciated that the present disclosure can be practiced with the exact details as other methods, techniques, elements, and circuits known in the art are not described in detail.

[0018] Referring to Figure 1 Figure 10 The present application provides an embodiment, the inner wall of the mounting frame 2 is provided with a second mounting groove 201 at the top, a first lead screw 3 is rotatably connected in the second mounting groove 201, a first motor 301 for driving the first lead screw 3 is arranged on the side wall of the mounting frame 2, a first connecting block 4 is threadedly connected to the first lead screw 3, the first connecting block 4 is fixedly connected to a first electric push rod 6 through a first connecting plate 5 at the bottom, the bottom output end of the first electric push rod 6 is fixedly connected to the top of a second connecting plate 7, the bottom of the second connecting plate 7 is fixedly connected to the top of a second motor 11, the bottom output end of the second motor 11 is rotatably connected to a drill bit 13 through a first connecting column 12, and a chamfering cutter 14 is further arranged on one side of the drill bit 13 at the bottom of the first connecting column 12.

[0019] Through the above embodiment, the cooperation of the first lead screw 3 and the first motor 301 drives the precise positioning of the drill bit assembly in the horizontal direction; combined with the vertical advancement of the first electric push rod 6 and the rotary drive of the second motor 11, the automation feeding control of the drilling operation is realized; especially by synchronously arranging the chamfering cutter 14 beside the drill bit 13, the one-time forming machining of the drilling and chamfering and deburring processes is realized, which significantly improves the machining efficiency while ensuring the hole position accuracy.

[0020] The present application provides an embodiment, the top of the mounting frame 2 is provided with a negative pressure device 15, the bottom of the negative pressure device 15 is provided with a telescopic pipe 16, one end of the telescopic pipe 16 away from the negative pressure device 15 penetrates the mounting frame 2 and the second connecting plate 7 in sequence and is provided with a negative pressure suction head 1601.

[0021] Through the above embodiment, the negative pressure device 15 is linked with the negative pressure suction head 1601 through the telescopic pipe 16, which realizes the immediate adsorption and cleaning of the waste scraps wound on the drill bit 13 during the drilling process: when the drill bit 13 completes the drilling and lifting, the negative pressure suction head 1601 which always moves synchronously with it can efficiently extract the drillings at the closest distance, which not only guarantees the cleanliness of the drill bit, but also avoids the decline of machining accuracy caused by the accumulation of waste scraps, significantly improving the continuous operation stability of the equipment.

[0022] ​The present application provides an embodiment, the inner wall of mounting frame 2 is provided with third installation groove 202 on both sides, the third installation groove 202 is rotatably connected with connecting pipe 17, a plurality of atomizing nozzles 18 are arranged on connecting pipe 17, the upper side of the end of third installation groove 202 away from workbench 1 is provided with equipment groove 203, third motor 19 is arranged in equipment groove 203, the bottom output end of third motor 19 is rotatably connected with the top of second connecting column 20, the bottom of second connecting column 20 penetrates equipment groove 203 and is provided with driving bevel gear 2001, one end of connecting pipe 17 is provided with driven bevel gear 1701 corresponding to the position of driving bevel gear 2001, driving bevel gear 2001 is engaged with driven bevel gear 1701; The side of mounting frame 2 away from workbench 1 on workbench 1 is provided with cooling liquid tank 21, and liquid supply pipes 22 are arranged on both sides of cooling liquid tank 21, one end of liquid supply pipe 22 away from cooling liquid tank 21 is fixedly connected with one end of connecting pipe 17 away from workbench 1.

[0023] Through the above embodiment, third motor 19 drives second connecting column 20 and driving bevel gear 2001 to rotate, and connecting pipe 17 is driven to rotate in third installation groove 202 through bevel gear engagement, so that the multi-directional adjustment of the spray angle of atomizing nozzle 18 is realized; cooling liquid is continuously supplied through liquid supply pipe 22 in cooperation with cooling liquid tank 21, so that atomizing nozzle 18 can dynamically adjust the cooling direction according to the machining position, the accurate coverage and uniform cooling of the contact area of drill bit 13 and the workpiece are realized, the machining temperature is effectively controlled, the workpiece thermal deformation and drill bit 13 overheating wear are prevented, and the machining quality and tool service life are improved.

[0024] The present application provides an embodiment, the inner wall of mounting frame 2 is provided with fourth installation groove 204 near one end of workbench 1 on both sides, second lead screw 23 is rotatably connected in fourth installation groove 204, fourth motor 2301 for driving second lead screw 23 is arranged on the top of mounting frame 2, second connecting block 24 is threadedly connected on second lead screw 23, the sides of second connecting block 24 opposite to each other are respectively fixedly connected with both sides of protective cover 25, limiting groove 205 is arranged on the top of mounting frame 2 corresponding to the position of protective cover 25; protective cover 25 is made of acrylic material.

[0025] Through the above embodiment, fourth motor 2301 drives second lead screw 23 to rotate in fourth installation groove 204, and drives protective cover 25 connected with second connecting block 24 to stably ascend and descend along limiting groove 205, so that the automatic closing and opening of the machining area are realized; the protective cover 25 made of acrylic material ensures the safety isolation of debris and cooling liquid splashing while maintaining the visibility of the machining process, which not only ensures the operation safety, but also facilitates real-time observation of the machining state.

[0026] The workbench 1 top mounting frame 2 below is provided with a drilling table 101, a plurality of waste grooves 1011 are arranged on the drilling table 101, the bottom of the workbench 1 below the drilling table 101 is provided with a collection box 26, the upper end of the collection box 26 is provided with a drawer 27, the bottom of the drawer 27 is provided with a filter screen 2701, dovetail blocks 2702 are arranged on the two sides of the drawer 27, dovetail grooves 2601 corresponding to the dovetail blocks 2702 are arranged on the inner wall of the collection box 26, the dovetail blocks 2702 and the dovetail grooves 2601 are matched to realize the detachable connection of the drawer 27 and the collection box 26, the lower end of the collection box 26 is fixedly connected with one end of a water return pipe 29 through a water pump 28, and the other end of the water return pipe 29 is fixedly connected with the top of a cooling liquid tank 21.

[0027] Through the above embodiment, the waste grooves 1011 arranged on the drilling table 101 realize the preliminary collection of machining waste, the mixed waste falling into the collection box 26 is separated by the filter screen 2701 at the bottom of the drawer 27; the drawer 27 is matched with the dovetail grooves 2601 on the inner wall of the collection box 26 through the dovetail blocks 2702 to realize the quick disassembly and assembly function, which is convenient for the regular cleaning of solid waste; the separated cooling liquid is pumped back to the cooling liquid tank 21 through the water return pipe 29 by the water pump 28 at the bottom of the collection box 26, forming a complete cooling liquid recycling system, which realizes the classified treatment of waste and the recycling of resources, and effectively improves the environmental performance and economy of the equipment.

[0028] The workbench 1 top mounting frame 2 below is provided with a drilling table 101, a plurality of waste grooves 1011 are arranged on the drilling table 101, the bottom of the workbench 1 below the drilling table 101 is provided with a collection box 26, the upper end of the collection box 26 is provided with a drawer 27, the bottom of the drawer 27 is provided with a filter screen 2701, dovetail blocks 2702 are arranged on the two sides of the drawer 27, dovetail grooves 2601 corresponding to the dovetail blocks 2702 are arranged on the inner wall of the collection box 26, the dovetail blocks 2702 and the dovetail grooves 2601 are matched to realize the detachable connection of the drawer 27 and the collection box 26, the lower end of the collection box 26 is fixedly connected with one end of a water return pipe 29 through a water pump 28, and the other end of the water return pipe 29 is fixedly connected with the top of a cooling liquid tank 21.

[0029] Through the above embodiment, the fifth motor 3001 drives the third screw rod 30 to rotate, drives the plurality of third connecting blocks 31 and the connecting frame 32 connected thereto to displace along the first mounting groove 102 synchronously, and realizes the accurate positioning of the workpiece in the horizontal direction; the plurality of second electric push rods 33 arranged on the connecting frame 32 drive the corresponding clamping plates 34 to move independently, and a flexible clamping system suitable for workpieces of different sizes is formed, which not only ensures the uniform distribution of clamping force and effectively prevents the deformation of thin-walled sheet metal parts, but also realizes the rapid positioning and stable fixation of the workpiece during the machining process, and significantly improves the automation degree and machining precision of the equipment.

[0030] The present application provides an embodiment, the top of the workbench 1 two sides of the side wall are provided with a chute 103 on one side, the workbench 1 is provided with a mounting plate 35, the mounting plate 35 is slidably connected with the chute 103 through the sliding block 36 arranged at both ends thereof, the mounting plate 35 is threadedly connected with a screw rod 40 at both ends of the top thereof, and the bottom of the mounting plate 35 is movably connected with the top of a third connecting plate 38 through a plurality of second springs 37, and the bottom of the third connecting plate 38 is provided with a brush 39.

[0031] Through the above embodiment, the mounting plate 35 is slidably connected with the chute 103 through the sliding block 36, so that the cleaning station is flexibly adjusted, and the screw rod 40 provides reliable positioning and locking functions; the second spring 37 enables the third connecting plate 38 and the brush 39 to have self-adaptive compression capability, so that constant contact with the surface of the workpiece is ensured. The structure design enables the cleaning assembly to be effectively cleaned when the workpiece enters the machining area and moves out after machining is completed, realizes full-process cleaning treatment before and after the sheet metal part is machined, eliminates surface impurities before machining to avoid affecting the drilling quality, and eliminates residual debris and cooling liquid after machining, so that the surface of the workpiece is kept clean, and the last link of full-process automatic machining is perfected.

[0032] The present application provides an embodiment, the bottom of the second connecting plate 7 is provided with a telescopic rod 8 at four corners, the bottom output end of the telescopic rod 8 is fixedly connected with the top of a pressing plate 10, the telescopic rod 8 is provided with a first spring 9 outside, and the pressing plate 10 is provided with a through hole 1001 in the middle.

[0033] Through the above embodiment, the telescopic rod 8 provided at the bottom of the second connecting plate 7 and the first spring 9 constitute an elastic buffer system, so that the pressing plate 10 can adapt to workpieces of different thicknesses and apply stable pre-compression force when contacting the surface of the workpiece; the through hole 1001 in the middle of the pressing plate 10 provides a precise machining channel for the drill bit 13, and realizes synchronous pressing and drilling. The structure effectively solves the problems of vibration, displacement and deformation of thin-walled sheet metal parts during drilling, guarantees the accuracy of the drilling position, avoids damage to the surface of the workpiece through the elastic pressing mechanism, and significantly improves the machining quality and yield.

[0034] Working principle: when working, first, the fifth motor 3001 in the clamping assembly drives the third lead screw 30, drives the connecting frame 32 and the clamping plate 34 to position and clamp the sheet metal part; through the clamping assembly along the Y axis and the first motor 301 in the drilling assembly drive the first lead screw 3 to drive the drill bit 13 to realize the X axis movement, cooperate to complete the XY axis accurate positioning of the workpiece in the machining plane; after the workpiece moves through the brush 39 of the cleaning assembly to complete the surface cleaning, it reaches above the drilling station 101; then the fourth motor 2301 drives the second lead screw 23 to drive the protective cover 25 to descend and close the machining area; the first electric push rod 6 pushes the drill bit 13 to move downward, after the workpiece is stably pressed by the pressing plate 10, the second motor 11 drives the drill bit 13 and the chamfering cutter 14 to complete the drilling and chamfering machining; during the machining process, the third motor 19 drives the atomizing nozzle 18 on the connecting pipe 17 to direct cooling to the machining point; the generated debris is sucked in real time by the negative pressure suction head 1601, the cooling liquid flows into the collection box 26 after filtering through the waste groove 1011 and is recycled; after the machining is completed, the protective cover 25 is lifted, the workpiece is moved out and then cleaned by the brush 39 again, and the whole machining process is completed.

[0035] The above has described various embodiments of the present disclosure, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical application or technical improvement in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A drilling device for sheet metal production and processing, characterized in that: The assembly includes a workbench (1), a drilling assembly, a cooling assembly, a clamping assembly, and a cleaning assembly. A mounting frame (2) is provided at one end of the top of the workbench (1). A drilling assembly is provided at the top of the inner wall of the mounting frame (2). Cooling assemblies are provided on both sides of the inner wall of the mounting frame (2). Clamping assemblies are provided on both sides of the top of the workbench (1). A cleaning assembly is provided at the end of the top of the workbench (1) away from the mounting frame (2). The drilling assembly includes a first lead screw (3), a first connecting block (4), a first electric push rod (6), a second motor (11), and a drill bit (13). A second mounting groove (201) is provided on the top of the inner wall of the mounting frame (2). The first lead screw (3) is rotatably connected in the second mounting groove (201). A first motor (301) for driving the first lead screw (3) is provided on the side wall of the mounting frame (2). The first connecting block (4) is threadedly connected to the first lead screw (3). The bottom of the first connecting block (4) is fixedly connected to the first electric push rod (6) through the first connecting plate (5). The bottom output end of the first electric push rod (6) is fixedly connected to the top of the second connecting plate (7). The bottom of the second connecting plate (7) is fixedly connected to the top of the second motor (11). The bottom output end of the second motor (11) is rotatably connected to the drill bit (13) through the first connecting column (12). A chamfering cutter (14) is also provided on one side of the drill bit (13) at the bottom of the first connecting column (12).

2. The drilling device for sheet metal production and processing according to claim 1, characterized in that: The mounting bracket (2) is equipped with a negative pressure device (15) at the top and a telescopic tube (16) at the bottom of the negative pressure device (15). The end of the telescopic tube (16) away from the negative pressure device (15) passes through the mounting bracket (2) and the second connecting plate (7) in sequence and is equipped with a negative pressure suction head (1601).

3. The drilling device for sheet metal production and processing according to claim 2, characterized in that: The cooling assembly includes a connecting pipe (17), a third motor (19), a second connecting column (20), a coolant tank (21), and a supply pipe (22). The mounting bracket (2) has a third mounting groove (202) on both sides of its inner wall. A connecting pipe (17) is rotatably connected in the third mounting groove (202). Multiple atomizing nozzles (18) are arranged on the connecting pipe (17). An equipment groove (203) is provided above the end of the third mounting groove (202) away from the workbench (1). A third motor (19) is provided in the equipment groove (203). The bottom output end of the third motor (19) is rotatably connected to the top of the second connecting column (20). The bottom of the second connecting column (20) passes through the equipment groove (203) and is provided with an active bevel gear (2001). A driven bevel gear (1701) is provided at one end of the connecting pipe (17) corresponding to the position of the active bevel gear (2001). The active bevel gear (2001) and the driven bevel gear (1701) mesh with each other. A coolant tank (21) is provided on the side of the mounting bracket (2) away from the workbench (1) on the workbench (1). A supply pipe (22) is provided on both sides of the coolant tank (21). The end of the supply pipe (22) away from the coolant tank (21) is fixedly connected to the end of the connecting pipe (17) away from the workbench (1).

4. The drilling device for sheet metal production and processing according to claim 3, characterized in that: The mounting bracket (2) has a fourth mounting groove (204) on each side of its inner wall near the workbench (1). A second lead screw (23) is rotatably connected in the fourth mounting groove (204). A fourth motor (2301) for driving the second lead screw (23) is provided on the top of the mounting bracket (2). A second connecting block (24) is threaded onto the second lead screw (23). The opposite sides of the second connecting blocks (24) are fixedly connected to the two sides of the protective cover (25). A limit groove (205) is provided on the top of the mounting bracket (2) corresponding to the position of the protective cover (25).

5. The drilling device for sheet metal production and processing according to claim 4, characterized in that: A drilling platform (101) is provided below the mounting bracket (2) on the top of the workbench (1). Multiple waste troughs (1011) are arranged on the drilling platform (101). A collection box (26) is provided at the bottom of the workbench (1) below the drilling platform (101). A drawer (27) is provided at the top of the collection box (26). A filter screen (2701) is provided at the bottom of the drawer (27). Dovetail protrusions (2702) are provided on both sides of the drawer (27). A dovetail groove (2601) is provided on the inner wall of the collection box (26) corresponding to the dovetail protrusions (2702). The drawer (27) and the collection box (26) are detachably connected by the mortise and tenon joint between the dovetail protrusions (2702) and the dovetail groove (2601). The lower end of the collection box (26) is fixedly connected to one end of the return water pipe (29) through the water pump (28). The other end of the return water pipe (29) is fixedly connected to the top of the coolant tank (21).

6. The drilling device for sheet metal production and processing according to claim 5, characterized in that: The clamping assembly includes a third lead screw (30), a third connecting block (31), a connecting frame (32), and a second electric push rod (33); The top two sides of the workbench (1) are provided with a first mounting groove (102) on one side of each side. A third lead screw (30) is rotatably connected in the first mounting groove (102). A fifth motor (3001) for driving the third lead screw (30) is provided on the side wall of the workbench (1). Multiple third connecting blocks (31) are threaded on the third lead screw (30). The side of the third connecting block (31) near the workbench (1) is fixedly connected to the side of the connecting frame (32). Multiple second electric push rods (33) are provided on the top of the inner wall of the connecting frame (32). The bottom output end of the second electric push rod (33) is fixedly connected to the top of the clamping plate (34).

7. The drilling device for sheet metal production and processing according to claim 6, characterized in that: The cleaning assembly includes a mounting plate (35), a second spring (37), and a third connecting plate (38). The two sides of the top of the workbench (1) are provided with sliding grooves (103). The workbench (1) is provided with a mounting plate (35) on top. The mounting plate (35) is slidably connected to the sliding grooves (103) through sliding blocks (36) at both ends. The top two ends of the mounting plate (35) are threaded with screws (40). The bottom of the mounting plate (35) is movably connected to the top of the third connecting plate (38) through multiple second springs (37). The bottom of the third connecting plate (38) is provided with a brush (39).

8. The drilling device for sheet metal production and processing according to claim 2, characterized in that: The second connecting plate (7) is provided with telescopic rods (8) at the four corners of the bottom. The bottom output end of the telescopic rod (8) is fixedly connected to the top of the pressure plate (10). The outer periphery of the telescopic rod (8) is provided with a first spring (9). The middle part of the pressure plate (10) is provided with a through hole (1001).

9. The drilling device for sheet metal production and processing according to claim 4, characterized in that: The protective cover (25) is made of acrylic material.

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