A drilling apparatus for machining a workpiece

Abstract

The utility model discloses a kind of drilling equipment for workpiece processing belongs to drilling equipment field, to the problem of low processing efficiency of traditional single drill bit drilling equipment. The equipment is provided with hollow processing frame and L-shaped mounting bracket on bottom plate, there is moving frame above hollow processing frame, the bottom circular mounting box is engaged with five driven wheels by driving wheel, drives mounting seat and drill bit rotation, five drill bits can be simultaneously assembled;Cylinder II on L-shaped mounting bracket promotes moving frame to descend and realizes drilling;Mounting seat and drill bit are detachably connected by clamping groove and bolt, which is convenient for replacing drill bit;Annular spray pipe and inclined spray head constitute cooling chip removal structure, and cooling water is injected to drill bit. The equipment can realize multi-axis synchronous drilling, which is conducive to improving processing efficiency, reducing equipment replacement cost and prolonging service life of drill bit.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, and in particular to a drilling equipment for workpiece processing. Background Technology

[0002] When processing sheet metal of a fixed size, it is often necessary to drill multiple holes at specific locations on the sheet metal. Most of the drilling equipment commonly used on the market adopts a single drill bit structure, which can only complete the drilling of one hole in a single processing. If multiple holes with fixed hole positions need to be processed on the sheet metal, the position of the workpiece must be adjusted repeatedly, or the equipment must be started and stopped multiple times to change the processing position. The whole process takes a lot of time and is not conducive to improving processing efficiency.

[0003] To address the aforementioned problems, this utility model document proposes a drilling device for workpiece processing. Utility Model Content

[0004] This utility model provides a drilling device for workpiece processing, which solves the problem that existing drilling devices mostly adopt a single drill bit structure, which can only complete the drilling of one hole in a single processing. If multiple holes with fixed positions need to be processed on the plate, the position of the workpiece must be repeatedly adjusted, or the equipment must be started and stopped many times to change the processing position. The whole process takes a lot of time and is not conducive to improving processing efficiency.

[0005] This utility model provides the following technical solution:

[0006] A drilling device for workpiece processing, comprising:

[0007] A base plate is provided, with a hollow processing frame and an L-shaped mounting frame fixedly installed on its top. A movable frame is installed above the hollow processing frame, and a circular mounting box is fixedly installed at the bottom of the movable frame. A drive wheel is mounted on the center of the bottom of the inner wall of the circular mounting box via a bearing. Five driven wheels are meshed in a ring array on the side teeth of the drive wheel. A transmission rod at the center of the bottom of the driven wheel is rotatably mounted on the bottom of the inner wall of the circular mounting box via a bearing. The transmission rod at the center of the bottom of the driven wheel extends to the outside of the circular mounting box and is fixedly mounted on a corresponding mounting seat. A corresponding drill bit is detachably mounted on the bottom of the mounting seat. An annular nozzle is fixedly installed on the outer wall of the circular mounting box.

[0008] In one possible design, an L-shaped limiting frame for clamping two adjacent sides of a rectangular workpiece is fixedly installed at the top edge of the hollow processing frame. A vertical plate is fixedly installed at the top of the hollow processing frame. A cylinder I is fixedly installed on the outer wall of the vertical plate. The output end of the cylinder I slides through the inner wall of the vertical plate and is fixedly installed with a clamping plate for holding the other side of the rectangular workpiece.

[0009] In one possible design, a cylinder II is fixedly mounted on the top of the L-shaped mounting bracket. The output end of the cylinder II slides through the inner wall of the L-shaped mounting bracket and is fixedly connected to the top of the movable frame. A limiting slider for limiting its vertical movement range is fixedly provided on the outer wall of the movable frame. A limiting groove for slidingly connecting the other end of the limiting slider is provided on the inner wall of the L-shaped mounting bracket.

[0010] In one possible design, a drive motor is fixedly installed on the bottom of the inner wall of the mobile frame, and the output shaft of the drive motor passes through the inner wall of the circular mounting box and is fixedly connected to the center of the top of the drive wheel.

[0011] In one possible design, the bottom of the mounting base is provided with a slot for engaging the top of a drill bit, and the slot and the top of the corresponding drill bit are connected through the same bolt, the end of the bolt being threaded with a matching nut.

[0012] In one possible design, the top of the annular nozzle is provided with a water inlet connected to a water source via a hose, and the bottom outlet of the annular nozzle is connected to an angled nozzle with the same number of drill bits, the bottom of the angled nozzle facing the corresponding drill bit.

[0013] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0014] The working principle and usage process of this technical solution are as follows:

[0015] During use, according to the specifications of the hole to be processed, the tip of the corresponding size drill bit is inserted into the slot at the bottom of the mounting base. The drill bit and the mounting base are locked by bolts and matching nuts that pass through the slot and the drill bit, so that the drill bit and the mounting base can be detachably fixed. Five different or the same size drill bits can be assembled at the same time to adapt to the drilling needs of multiple diameters or multiple positions within a certain range. Then, the rectangular workpiece to be processed is placed on the top of the hollow processing frame, so that the two adjacent sides of the workpiece are inserted into the L-shaped limit frame to achieve initial positioning. Then, the cylinder I is activated, and its output end pushes the clamping plate to move towards the workpiece until the clamping plate is tightly attached to the other side of the workpiece, thus completing the firm clamping of the workpiece and preventing the workpiece from shifting during drilling.

[0016] After the drive motor is started, its output shaft drives the drive wheel inside the circular mounting box to rotate. The drive wheel drives five driven wheels to rotate synchronously through side gear meshing. The transmission rod at the bottom of the driven wheels drives the mounting base and drill bit to rotate. At the same time, cylinder II is started, and its output end pushes the moving frame to descend vertically along the limit slide groove on the inner wall of the L-shaped mounting frame (the limit slider slides synchronously to limit the offset of the moving frame) until the rotating drill bit contacts the workpiece and completes the drilling operation at the preset depth. During the drilling process, the water source can be connected to the inlet of the annular spray pipe through a hose. Cooling water is distributed to each angled nozzle through the annular spray pipe. The angled nozzles spray cooling water onto the corresponding rotating drill bit, which cools the drill bit to prevent overheating and wear, and also flushes the debris generated during drilling away from the workpiece hole, which helps to ensure drilling accuracy. After drilling is completed, the drive motor and water source are turned off, and cylinder II is controlled to drive the moving frame and drill bit to move up and reset. Then, cylinder I is controlled to drive the clamping plate to reset, releasing the clamping of the workpiece. Finally, the processed workpiece is removed, completing a single process.

[0017] This utility model has the following beneficial effects:

[0018] This invention utilizes a multi-axis transmission structure where a driving wheel meshes with five driven wheels, enabling five drill bits to drill simultaneously. This allows for the completion of drilling multiple holes or drilling multiple locations on the same workpiece in a single operation. Compared to traditional single-drill-bit equipment, this improves processing efficiency and is particularly suitable for batch processing of sheet metal.

[0019] In this invention, the mounting base and the drill bit are detachably connected by a slot and bolts, allowing for quick assembly and disassembly of the drill bit without the need for special tools. It also allows for flexible replacement of drill bits of various sizes, meeting the processing needs of the same equipment for drilling multiple hole diameters within a certain range, and helping to reduce equipment replacement costs.

[0020] The cooling and chip removal structure composed of the annular nozzle and the inclined nozzle in this utility model can spray cooling water to each drill bit in a targeted manner, effectively reducing the working temperature of the drill bit, reducing drill bit wear or breakage caused by overheating, extending the service life of the drill bit, and at the same time flushing away some chips, which helps to prevent chips from getting stuck in the drill bit. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a drilling device for workpiece processing provided in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a circular mounting box for a workpiece drilling device provided in an embodiment of the present utility model;

[0023] Figure 3 A schematic diagram of a gear transmission structure for a drilling device for workpiece processing provided in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of a drilling device for workpiece processing in use, provided in an embodiment of the present utility model.

[0025] Reference numerals: 1. Base plate; 2. Hollow processing frame; 3. L-shaped mounting frame; 4. L-shaped limiting frame; 5. Vertical plate; 6. Cylinder I; 7. Clamping plate; 8. Moving frame; 9. Cylinder II; 10. Circular mounting box; 11. Drive wheel; 12. Driven wheel; 13. Drive motor; 14. Mounting base; 15. Drill bit; 16. Slot; 17. Limiting slider; 18. Limiting groove; 19. Annular nozzle; 20. Angled nozzle; 21. Water inlet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0029] In one embodiment:

[0030] Please refer to Figure 1-4 A drilling device, comprising:

[0031] A base plate 1 has a hollow processing frame 2 and an L-shaped mounting frame 3 fixedly mounted on its top surface by welding. The hollow processing frame 2 and the L-shaped mounting frame 3 are vertically distributed, with space reserved between them for placing and processing workpieces. A movable frame 8 is set above the hollow processing frame 2. The movable frame 8 has a rectangular frame structure, and a circular mounting box 10 is fixed to its bottom by bolts. The interior of the circular mounting box 10 is a hollow cavity, and the axis of the circular mounting box 10 coincides with the central axis of the movable frame 8.

[0032] A drive wheel 11 is mounted at the center of the bottom of the inner wall of the circular mounting box 10 via a deep groove ball bearing. The drive wheel 11 can rotate freely around its own axis. Five driven wheels 12 are meshed in a circular array on the side teeth of the drive wheel 11. The five driven wheels 12 are of the same size, and the included angle between any two adjacent driven wheels 12 is equal, ensuring that the rotation of the drive wheel 11 can synchronously drive the rotation of the five driven wheels 12. A transmission rod is integrally formed at the center of the bottom of each driven wheel 12. The end of the transmission rod away from the driven wheel 12 is rotatably mounted at the bottom of the inner wall of the circular mounting box 10 via a thrust bearing, and the end of the transmission rod away from the driven wheel 12 extends to the outside of the circular mounting box 10. The parts are sealed with a sealing sleeve to prevent machining debris from entering the circular mounting box 10. The end of the transmission rod located outside the circular mounting box 10 is fixedly provided with a corresponding mounting base 14 by a key connection. The mounting base 14 has a cylindrical structure, and its bottom end face has a groove 16 for engaging the drill bit 15. The cross-sectional shape of the groove 16 matches the cross-sectional shape of the top end of the drill bit 15. After the top end of the drill bit 15 is engaged in the groove 16, the groove 16 and the top end of the drill bit 15 are connected by the same bolt. The end of the bolt is threaded with a matching nut. By tightening the nut, the drill bit 15 can be firmly fixed on the mounting base 14. By unscrewing the nut, the drill bit 15 can be removed for replacement.

[0033] An annular nozzle 19 is fixedly mounted on the outer wall of the circular mounting box 10 by a clamp. The axis of the annular nozzle 19 coincides with the axis of the circular mounting box 10. A water inlet 21 is provided on the top side of the annular nozzle 19. The water inlet 21 is connected to an external water source through a hose. The hose and the water inlet 21 are connected by a quick connector to facilitate the installation and removal of the hose. The output port at the bottom of the annular nozzle 19 is connected to an angled nozzle 20 by a threaded connection. The number of angled nozzles 20 is the same as the number of drill bits 15, and the bottom end of each angled nozzle 20 faces the corresponding drill bit 15 to ensure that the cooling water sprayed by the angled nozzles 20 can accurately act on the processing part of the drill bit 15.

[0034] An L-shaped limiting bracket 4 is bolted to the top edge of the hollow processing frame 2. The two right-angled sides of the L-shaped limiting bracket 4 are parallel to two adjacent sides of the top of the hollow processing frame 2, used to clamp the two adjacent sides of a rectangular workpiece to be processed, achieving initial workpiece positioning. A vertical plate 5 is welded to the side of the top surface of the hollow processing frame 2 away from the L-shaped limiting bracket 4. The vertical plate 5 is a flat plate structure perpendicular to the top surface of the hollow processing frame 2. A cylinder I 6 is fixedly installed on the outer wall of the vertical plate 5 via a flange. The output shaft of cylinder I 6 is positioned horizontally. The output end of cylinder I6 slides through the inner wall of vertical plate 5. A guide sleeve is provided at the part of the output end that passes through vertical plate 5 to ensure the stability of the output shaft of cylinder I6 when it extends or retracts. A clamping plate 7 is fixedly installed at the end of the output end of cylinder I6 on the side of vertical plate 5 near L-shaped limit frame 4 by thread. The clamping plate 7 has a rectangular flat plate structure and its plate surface is perpendicular to the output shaft of cylinder I6. When the output shaft of cylinder I6 extends, the clamping plate 7 can move towards the workpiece until it is tightly fitted with the other side of the workpiece, so as to achieve the clamping and fixing of the workpiece in conjunction with L-shaped limit frame 4.

[0035] Cylinder II 9 is fixedly mounted on the top horizontal plate of L-shaped mounting bracket 3 by bolts. The output shaft of cylinder II 9 is set in the vertical direction, and the output end of cylinder II 9 slides through the inner wall of the top horizontal plate of L-shaped mounting bracket 3. A guide sleeve is also provided at the through part of the output end. The end of cylinder II 9 located below L-shaped mounting bracket 3 is fixedly connected to the top surface of movable bracket 8 by bolts.

[0036] A drive motor 13 is fixedly mounted on the bottom inner wall of the movable frame 8 via a motor base. The output shaft of the drive motor 13 is arranged vertically and passes through the top inner wall of the circular mounting box 10. The part of the output shaft that passes through the circular mounting box 10 is sealed and supported by a bearing. The end of the drive motor 13 output shaft located inside the circular mounting box 10 is fixedly connected to the center of the top of the drive wheel 11 via a coupling. Starting the drive motor 13 will drive the drive wheel 11 to rotate around its own axis.

[0037] In actual use, select the corresponding size of drill bit 15 according to the specifications of the hole to be processed, insert the top of drill bit 15 into the slot 16 at the bottom of the mounting base 14, insert the bolt and tighten the nut to complete the installation of drill bit 15. If it is necessary to process holes of multiple diameters, drill bits 15 of different specifications can be installed on the five mounting bases 14 respectively. If it is necessary to process holes of the same diameter, drill bits 15 of the same specification can be installed. Place the rectangular workpiece to be processed on the top of the hollow processing frame 2, so that the two adjacent sides of the workpiece are inserted into the L-shaped limit frame 4. Start the cylinder I6. The output shaft of cylinder I6 extends and pushes the clamping plate 7 to move towards the workpiece until the clamping plate 7 is tightly attached to the other side of the workpiece. Stop the operation of cylinder I6. At this time, the workpiece is firmly clamped on the hollow processing frame 2.

[0038] After the drive motor 13 is started, the output shaft of the drive motor 13 drives the drive wheel 11 to rotate. The drive wheel 11 drives the five driven wheels 12 to rotate synchronously through the side gear meshing. The driven wheels 12 drive the mounting base 14 and the drill bit 15 to rotate synchronously through the transmission rod at the bottom. At the same time, the cylinder II 9 is started. The output shaft of the cylinder II 9 extends and pushes the moving frame 8 to descend vertically along the limiting slide groove 18 on the inner wall of the L-shaped mounting frame 3. The limiting slider 17 slides synchronously in the limiting slide groove 18. During the descent of the moving frame 8, the rotating drill bit 15 gradually approaches the workpiece until the drill bit 15 contacts the workpiece and continues to move downward to complete the drilling operation at the preset depth.

[0039] During drilling, the hose of the external water source is connected to the water inlet 21 at the top of the annular nozzle 19. The water source valve is opened, and cooling water enters the interior of the annular nozzle 19. After being distributed by the annular nozzle 19, the cooling water is sprayed out from each inclined nozzle 20. The cooling water sprayed from the inclined nozzle 20 directly acts on the corresponding processing part of the drill bit 15 to cool down the drill bit 15. At the same time, it washes away the debris generated during drilling from the workpiece hole. After the drilling operation is completed, the drive motor 13 and the water source valve are closed, and the output shaft of the cylinder II 9 is controlled to retract, driving the moving frame 8 and the drill bit 15 to move upward and reset until the drill bit 15 is completely separated from the workpiece. Then, the output shaft of the cylinder I 6 is controlled to retract, driving the clamping plate 7 to move away from the workpiece and reset, releasing the clamping of the workpiece. The operator removes the processed workpiece from the hollow processing frame 2, and the next processing cycle can begin.

[0040] This application can be used for workpiece drilling, or for other fields applicable to this application.

[0041] In another embodiment:

[0042] A drilling device for workpiece processing, which is used in the field of drilling equipment;

[0043] Please refer to Figure 1 A limiting slider 17 is welded on the outer wall of the movable frame 8, and a limiting groove 18 is opened on the inner wall of the L-shaped mounting frame 3. The end of the limiting slider 17 away from the movable frame 8 is slidably connected in the limiting groove 18. When the output shaft of the cylinder II 9 extends and retracts, driving the movable frame 8 to move vertically, the limiting slider 17 slides synchronously along the limiting groove 18, limiting the moving direction and range of the movable frame 8.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of cylinder I6, cylinder II9 and drive motor 13 are all conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A drilling device for workpiece processing, characterized in that, include: A base plate (1) is provided with a hollow processing frame (2) and an L-shaped mounting frame (3) fixedly installed on the top of the base plate (1). A movable frame (8) is provided above the hollow processing frame (2). A circular mounting box (10) is fixedly installed at the bottom of the movable frame (8). A drive wheel (11) is installed at the center of the bottom of the inner wall of the circular mounting box (10) through a bearing. Five driven wheels (12) are meshed in a ring array on the side teeth of the drive wheel (11). The transmission rod at the center of the bottom of the driven wheel (12) is rotatably installed at the bottom of the inner wall of the circular mounting box (10) through a bearing. The transmission rod at the center of the bottom of the driven wheel (12) extends to the outside of the circular mounting box (10) and is fixedly provided with a corresponding mounting seat (14). A corresponding drill bit (15) is detachably installed at the bottom of the mounting seat (14). An annular nozzle (19) is fixedly installed on the outer wall of the circular mounting box (10).

2. The drilling equipment for workpiece processing according to claim 1, characterized in that, The hollow processing frame (2) is fixedly provided with an L-shaped limiting frame (4) for clamping the two adjacent sides of the rectangular workpiece to be processed. The top of the hollow processing frame (2) is fixedly provided with a vertical plate (5). A cylinder I (6) is fixedly installed on the outer wall of the vertical plate (5). The output end of the cylinder I (6) slides through the inner wall of the vertical plate (5) and is fixedly provided with a clamping plate (7) for clamping the other side of the rectangular workpiece to be processed.

3. The drilling equipment for workpiece processing according to claim 1, characterized in that, A cylinder II (9) is fixedly installed on the top of the L-shaped mounting bracket (3). The output end of the cylinder II (9) slides through the inner wall of the L-shaped mounting bracket (3) and is fixedly connected to the top of the movable frame (8). A limiting slider (17) for limiting its vertical movement range is fixedly provided on the outer wall of the movable frame (8). A limiting groove (18) for slidingly connecting the other end of the limiting slider (17) is provided on the inner wall of the L-shaped mounting bracket (3).

4. The drilling equipment for workpiece processing according to claim 1, characterized in that, A drive motor (13) is fixedly installed on the bottom of the inner wall of the movable frame (8). The output shaft of the drive motor (13) passes through the inner wall of the circular mounting box (10) and is fixedly connected to the center of the top of the drive wheel (11).

5. A drilling device for workpiece processing according to claim 1, characterized in that, The bottom of the mounting base (14) is provided with a slot (16) for engaging the top of the drill bit (15). The slot (16) and the top of the corresponding drill bit (15) are connected by the same bolt, and the end of the bolt is threaded with a matching nut.

6. The drilling equipment for workpiece processing according to claim 1, characterized in that, The top of the annular nozzle (19) is provided with a water inlet (21) that is connected to a water source via a hose. The bottom outlet of the annular nozzle (19) is connected to an inclined nozzle (20) with the same number as the drill bit (15). The bottom end of the inclined nozzle (20) faces the corresponding drill bit (15).

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