A plate workpiece punching device

Abstract

The utility model discloses a kind of board workpiece punching device, including drill rig body, the drill rig body bottom is fixed on workbench by stand column;The drill rod outside of the drill rig body is equipped with protective bin, for the collection of the drill cutting generated by drilling, the top of protective bin is downwardly penetrated and is provided with a clearance hole, the drill rod is arranged in the clearance hole, and lifting limiting piece is vertically arranged on the both sides of the top of protective bin, and the top of lifting limiting piece is connected with the outer wall of machine shell;Buffer is arranged between the top of protective bin and the bottom of machine shell, for enabling drill bit initial state to be located inside protective bin, while assisting the workpiece to be pressed tightly when drilling;Linear micro laser module is embedded in the bottom of protective bin along cross axis, the laser emitted by laser module is cross structure, and the intersection of cross linear laser coincides with drill bit axis.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to a hole-drilling device for sheet metal workpieces. Background Technology

[0002] In construction projects, a large amount of boards are often used. Generally, when using boards, it is necessary to pre-drill holes to make the boards easier to install.

[0003] When using a bench drill to drill holes in sheet metal, existing drilling equipment requires operators to move and position the sheet metal multiple times when drilling multiple holes in a sheet metal with a fixed horizontal coordinate position. In order to improve the drilling efficiency, operators often manually press and hold the sheet metal to drill in different positions. However, the pressure applied during drilling can easily cause the hole to deviate. In addition, the flying drill chips during drilling can easily injure operators and cause safety accidents.

[0004] Therefore, it is necessary to provide a drilling device for sheet metal workpieces to solve the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling device for sheet metal workpieces, comprising: a drilling machine body, the drilling machine body including a housing, a drive device, a drill rod, and a drill bit; the output end of the drive device is equipped with the drill rod, and the bottom end of the drill rod is detachably equipped with the drill bit; the drive device is used to drive the drill bit to reciprocate and drill holes in the workpiece; the bottom of the drilling machine body is fixed to the worktable by a column; a protective chamber is sleeved on the outside of the drill rod for collecting drill chips generated during drilling; a clearance hole is provided through the top of the protective chamber, and the drill rod passes through the clearance hole; lifting limiters are vertically arranged on both sides of the top of the protective chamber, and the top end of the lifting limiters is connected to the outer wall of the housing; A buffer is provided between the top of the protective chamber and the bottom of the housing, which is used to ensure that the drill bit is initially located inside the protective chamber, and to assist in clamping the workpiece during drilling. The bottom of the protective chamber is embedded with a linear micro laser module along a cross-shaped axis. The laser emitted by the laser module has a cross structure, and the intersection of the cross-shaped linear laser coincides with the axis of the drill bit.

[0006] Preferably, the buffer is a spring, which is sleeved on the outside of the drill rod and elastically supported between the protective chamber and the bottom of the housing; a limit ring is coaxially provided on the top of the protective chamber outside the clearance hole, and the spring is located outside the limit ring.

[0007] Preferably, the lifting limit component includes a limit rod and a U-shaped limit plate. The limit rod is vertically fixed on both sides of the top of the protective compartment. The limit plate is fixed on both sides of the housing corresponding to the limit rod. A limit hole is formed between the limit plate and the side wall of the housing. The limit rod is slidably inserted into the limit hole. A limiting block is installed on the top side of the limiting rod, and the limiting block is located above the limiting plate.

[0008] Preferably, a chip removal interface is provided on one side of the protective chamber, and the chip removal interface is connected to a suction device through a flexible pipe for collecting and absorbing the drill chips generated by the drill bit.

[0009] Preferably, an air source interface is provided on the other side of the protective chamber corresponding to the chip removal interface. The air source interface is connected to an air compression device through a flexible pipe. The protective chamber has several mounting holes evenly distributed inside the air source interface. An air pipe is installed at the mounting hole facing the clearance hole for blowing away the generated drill cuttings.

[0010] Preferably, the protective compartment has an inspection port on the side opposite to the column, and an inspection plate is installed at the inspection port.

[0011] Preferably, one side of the inspection plate is hinged to the side of the inspection port via a hinge plate, and the other side is connected to the side of the inspection port via a snap-fit ​​structure.

[0012] Preferably, a cushioning pad is adhered to the bottom of the protective compartment to fit its structure.

[0013] Compared with the prior art, the present invention provides a drilling device for sheet metal workpieces, which has the following advantages: In this invention, a buffer-lifting protective chamber is installed to protect the drill bit, preventing drill cuttings from flying and injuring people. Simultaneously, the protective chamber assists in clamping the workpiece, improving drilling accuracy. Furthermore, by providing an air source interface and a chip removal interface connected to an air compressor and a suction device respectively, a combination of blowing and suction is used to clean drill cuttings in real time and thoroughly, preventing drill cuttings from flying and polluting the environment, and reducing manual cleaning workload. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a hole-drilling device for sheet metal workpieces; Figure 2 A schematic diagram of the protective chamber and lifting limit component of a punching device for sheet metal workpieces; Figure 3 A schematic diagram of the installation position structure of a laser module in a plate workpiece drilling device; In the diagram: 1. Drilling rig body; 2. Column; 3. Protective chamber; 4. Limiting rod; 5. Limiting plate; 6. Air source interface; 7. Chip removal interface; 8. Buffer component; 9. Inspection plate; 10. Clearance hole; 11. Limiting ring; 12. Limiting block; 13. Mounting hole; 14. Air pipe; 15. Laser module. Detailed Implementation

[0015] Please see Figure 1-3 This utility model provides a drilling device for sheet metal workpieces, comprising: a drilling machine body 1, the drilling machine body 1 including a housing, a drive device, a drill rod and a drill bit, the output end of the drive device is equipped with the drill rod, the bottom end of the drill rod is detachably equipped with the drill bit, the drive device is used to drive the drill bit to reciprocate to drill the workpiece, the bottom of the drilling machine body 1 is fixed on the worktable (not shown in the figure) by a column 2; a protective chamber 3 is sleeved on the outside of the drill rod for collecting the drill chips generated during drilling, the top of the protective chamber 3 is provided with a downward through-hole 10, the drill rod passes through the through-hole 10, and lifting limiters are vertically arranged on both sides of the top of the protective chamber 3, the top of the lifting limiters being connected to the outer wall of the housing; A buffer 8 is provided between the top of the protective chamber 3 and the bottom of the housing, which is used to ensure that the drill bit is initially located inside the protective chamber 3, and to assist in clamping the workpiece during drilling. The bottom of the protective chamber 3 is embedded with a linear micro laser module 15 along a cross-shaped axis. The laser emitted by the laser module 15 has a cross structure, and the intersection of the cross-shaped linear laser coincides with the axis of the drill bit.

[0016] The drilling rig body 1 is an existing bench drill body, which is commercially available, and the column 2 is a liftable column used to adjust the distance between the drill bit and the plate.

[0017] It should be explained that in the initial state, the device is not activated, the buffer 8 is in a naturally extended state, and the drill bit is completely retracted into the protective chamber 3 under the support of the buffer 8, so as to prevent the drill bit from being exposed. The protective chamber 3 is kept relatively fixed to the casing of the drilling machine body 1 by the lifting limit device at the top, so as to ensure structural stability.

[0018] When drilling is required on a sheet metal workpiece, the workpiece is placed on the worktable and initially positioned. Laser module 15 is then activated. Laser module 15 (a Coherent Mini series structured light laser) is connected to the control system of the drill body 1 via wires, and its start and stop can be controlled via the control panel. Before drilling, laser module 15 is activated, and each laser module 15 emits a linear laser beam, forming a cross-shaped laser mark (drill bit center point) on the surface of the sheet metal workpiece. The operator adjusts the position of the sheet metal workpiece to quickly align the target hole position with the intersection of the cross laser beam.

[0019] Afterwards, the drive unit is activated to move the drill rod and drill bit downwards. During this process, the bottom of the protective chamber 3 first contacts the surface of the workpiece. As the drive unit continues to descend, the protective chamber 3 is subjected to the reaction force of the workpiece, compressing the buffer 8 upwards. The buffer 8 generates an elastic reaction force, forming a uniform auxiliary clamping force on the workpiece to prevent it from shaking during drilling. When the buffer 8 is compressed to a certain height, the drill bit extends from the clearance hole 10 at the bottom of the protective chamber 3, contacts the workpiece, and begins drilling. The drill chips generated during drilling are concentrated inside the protective chamber 3 under the protection of the protective chamber 3, waiting to be collected and processed, thus preventing the drill chips from splashing. After drilling is completed, the drive unit drives the drill rod and drill bit to return to their original position upwards. The buffer 8 gradually extends, pushing the protective chamber 3 to return to its original position downwards until the drill bit is retracted into the protective chamber 3, completing one drilling cycle.

[0020] Furthermore, the buffer 8 is a spring, which is sleeved on the outside of the drill rod and elastically supported between the protective chamber 3 and the bottom of the housing; a limit ring 11 is coaxially provided on the top of the protective chamber 3 outside the clearance hole 10, and the spring is located outside the limit ring 11.

[0021] Specifically, the inner diameter of the spring is larger than the outer diameter of the drill rod, and it is located outside the limiting ring 11 to ensure that the spring is sleeved on the outside of the drill rod and does not rub against the drill rod.

[0022] Furthermore, the lifting limit component includes a limit rod 4 and a U-shaped limit plate 5. The limit rod 4 is vertically fixed on both sides of the top of the protective chamber 3. The limit plate 5 is fixed on both sides of the housing corresponding to the limit rod 4, and a limit hole is formed between the limit plate 5 and the side wall of the housing. The limit rod 4 is slidably inserted into the limit hole. A limiting block 12 is installed on the top side of the limiting rod 4, and the limiting block 12 is located above the limiting plate 5.

[0023] It should be explained that the limiting rod 4 and the limiting plate 5 work together to guide the lifting and lowering of the protective chamber 3, effectively preventing radial swaying of the protective chamber 3 during the lifting and lowering process and avoiding interference with the drilling of the drill bit; at the same time, the limiting block 12 can limit the limiting rod 4 to prevent the limiting rod 4 from coming out of the limiting hole.

[0024] Furthermore, a chip removal interface 7 is provided on one side of the protective chamber 3. The chip removal interface 7 is connected to a suction device through a flexible pipe to collect and absorb the drill chips generated by the drill bit.

[0025] Specifically, the chip inlet of the chip removal interface 7 is a tapered structure that tapers from large to small. After drilling begins, the drill chips generated by the drill bit are concentrated inside the protective chamber 3 under the protection of the chamber. At the same time, the suction device (such as an industrial vacuum cleaner) connected to the chip removal interface 7 is activated. The drill chips are sucked and collected through the chip removal interface 7 and the flexible tubing, preventing drill chips from flying and injuring people, thus improving operational safety.

[0026] Furthermore, on the other side of the protective chamber 3, an air source interface 6 is provided corresponding to the chip removal interface 7. The air source interface 6 is connected to an air compression device through a flexible pipe. The protective chamber 3 has a plurality of mounting holes 13 evenly opened inside the air source interface 6. An air pipe 14 is installed at the mounting hole 13 facing the clearance hole 10 for blowing away the generated drill cuttings.

[0027] It needs to be explained that during drilling operations, the air compressor is started, and compressed air enters the protective chamber 3 through the air source interface 6. After being guided by each air pipe 14, it is blown at a certain pressure onto the drilling area of ​​the drill bit and the plate, blowing up the drill chips attached to the drill bit and the drill chips accumulated in the drilling area. At the same time, the suction device at the chip removal interface 7 is activated, which quickly removes the blown-up drill chips from the protective chamber 3, achieving a combined blowing and suction effect for cleaning drill chips.

[0028] Furthermore, an inspection port is provided on the side of the protective chamber 3 opposite to the column 2, and an inspection plate 9 is installed at the inspection port. The inspection port is large enough to allow personnel to enter the protective chamber 3 for operation, facilitating drill bit maintenance, replacement, and other operations.

[0029] Furthermore, one side of the inspection plate 9 is hinged to the side of the inspection port via a hinge plate, and the other side is connected to the side of the inspection port via a snap-fit ​​structure.

[0030] It should be explained that the snap-fit ​​structure includes a buckle welded to the edge of the inspection plate 9, and a snap-fit ​​seat with a slot welded to the edge of the inspection port corresponding to the buckle. The buckle and the slot are sized to fit together to form the snap-fit ​​structure. When it is necessary to open the inspection plate 9, the snap-fit ​​side of the inspection plate 9 is pulled outward to disengage the buckle from the slot, and then the inspection plate 9 can be opened by rotating it around the hinge plate. When it is necessary to close the inspection plate 9, the inspection plate 9 is rotated around the hinge plate to close the inspection port, and the snap-fit ​​side of the inspection plate 9 is pressed to engage the buckle into the slot, thus achieving quick fixation of the inspection plate 9. The structure is simple, low-cost, and easy to process and replace.

[0031] Furthermore, a buffer pad is attached to the bottom of the protective chamber 3 to fit its structure. The buffer pad is a nitrile rubber pad or a silicone pad with a thickness of 3~5mm. This can effectively avoid rigid contact between the bottom of the protective chamber 3 and the surface of the workpiece, prevent the workpiece surface from being crushed (especially for soft materials such as wood and plastic boards), and protect the appearance quality of the workpiece.

[0032] In practice, the sheet metal workpiece is placed on the workbench and initially positioned. The laser module 15 is activated before drilling. Each laser module 15 emits a linear laser to form a cross-shaped laser mark on the surface of the sheet metal workpiece. The operator adjusts the position of the sheet metal workpiece to quickly align the target hole position on the sheet metal with the intersection of the cross laser.

[0033] Afterwards, the drive unit is activated to move the drill rod and drill bit downwards. Under the action of the buffer 8, the workpiece is assisted in being pressed to prevent it from shaking during drilling. When the buffer 8 is compressed to a certain height, the drill bit extends out from the clearance hole 10 at the bottom of the protective chamber 3, contacts the workpiece, and begins drilling. The drill chips generated during drilling are concentrated inside the protective chamber 3 under the protection of the chamber 3, and are collected and treated by a combination of blowing and suction to prevent the chips from flying and injuring people. After drilling is completed, the drive unit moves the drill rod and drill bit upwards to reset, and the buffer 8 resets to push the protective chamber 3 downwards until the drill bit is stored back in the protective chamber 3, completing one drilling cycle.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drilling device for sheet metal workpieces, comprising: The drilling rig body (1) includes a housing, a drive device, a drill rod, and a drill bit. The output end of the drive device is equipped with the drill rod, and the bottom end of the drill rod is detachably equipped with the drill bit. The drive device is used to drive the drill bit to reciprocate and drill the workpiece. The bottom of the drilling rig body (1) is fixed to the worktable by a column (2). The drill rod is fitted with a protective chamber (3) on its outer side for collecting the drill chips generated during drilling. The top of the protective chamber (3) is provided with a downward-facing clearance hole (10), and the drill rod passes through the clearance hole (10). The top two sides of the protective chamber (3) are vertically provided with lifting limiters, and the top of the lifting limiters is connected to the outer wall of the housing. A buffer (8) is provided between the top of the protective chamber (3) and the bottom of the housing, so that the drill bit is initially located inside the protective chamber (3), and the workpiece is pressed down during drilling. The bottom of the protective chamber (3) is embedded with a linear micro laser module (15) along the cross-shaped axis. The laser emitted by the laser module (15) has a cross structure, and the intersection of the cross-shaped linear laser coincides with the axis of the drill bit.

2. The drilling device for sheet metal workpieces according to claim 1, characterized in that, The buffer (8) is a spring, which is sleeved on the outside of the drill rod and elastically supported between the protective chamber (3) and the bottom of the housing; the top of the protective chamber (3) is coaxially provided with a limiting ring (11) outside the clearance hole (10), and the spring is located outside the limiting ring (11).

3. The drilling device for sheet metal workpieces according to claim 1, characterized in that, The lifting limit component includes a limit rod (4) and a U-shaped limit plate (5). The limit rod (4) is vertically fixed on both sides of the top of the protective chamber (3). The limit plate (5) is fixed on both sides of the housing corresponding to the limit rod (4). A limit hole is formed between the limit plate (5) and the side wall of the housing. The limit rod (4) is slidably inserted into the limit hole. A limiting block (12) is installed on the top side of the limiting rod (4), and the limiting block (12) is located above the limiting plate (5).

4. The drilling device for sheet metal workpieces according to claim 1, characterized in that, The protective chamber (3) is provided with a chip removal interface (7) on one side. The chip removal interface (7) is connected to a suction device through a flexible pipe to collect the drill chips generated by the drill bit.

5. The plate workpiece drilling device according to claim 4, characterized in that, On the other side of the protective chamber (3), an air source interface (6) is provided corresponding to the chip removal interface (7). The air source interface (6) is connected to an air compression device through a flexible pipe. The protective chamber (3) is provided with several mounting holes (13) evenly distributed inside the air source interface (6). An air pipe (14) is installed at the mounting hole (13) facing the clearance hole (10) for blowing away the generated drill cuttings.

6. The drilling device for sheet metal workpieces according to claim 1, characterized in that, The protective compartment (3) has an inspection port on the side away from the column (2), and an inspection plate (9) is installed at the inspection port.

7. The drilling device for sheet metal workpieces according to claim 6, characterized in that, One side of the inspection plate (9) is hinged to the side of the inspection port via a hinge plate, and the other side is connected to the side of the inspection port via a snap-fit ​​structure.

8. The drilling device for sheet metal workpieces according to claim 1, characterized in that, The bottom of the protective chamber (3) is fitted with a cushioning pad to match its structure.

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