A drilling machine for wood processing

Abstract

This invention relates to the technical field of drilling equipment, and in particular to a drilling machine for wood processing, comprising a drill bit structure for drilling holes in wood boards. The drill bit structure includes a support sleeve, multiple drill bits, a moving ring, and a positioning ring. The multiple drill bits are arranged in a ring around the circumference of the support sleeve. The drill bits are slidably mounted on the end face of the support sleeve, and the sliding direction of the drill bits is along the radial direction of the support sleeve. The moving ring and the positioning ring are both sleeved on the outer wall of the support sleeve. Through the sliding of the drill bits along the radial direction of the support sleeve, and the linkage design of the support arm and the adjusting arm, the function of dynamically adjusting the hole diameter according to the actual situation during the drilling process is realized. This helps to reduce the risk of wood fiber compression and wood board cracking caused by excessive radial force during drilling, because the drill bit structure can automatically adjust according to the drilling resistance, reducing the lateral extrusion force on the wood board.

Description

Technical Field

[0001] This invention relates to the technical field of drilling equipment, and in particular to a drilling machine for wood processing. Background Technology

[0002] In the woodworking industry, drilling is an indispensable and crucial process in wood panel processing, directly affecting subsequent assembly, connection, and the final quality and aesthetics of the product. Traditional drilling is accomplished using a rotating drill bit on a bench drill or CNC drilling machine. Since the drill bit is a cylindrical entity, it exerts a cutting force on the wood during drilling. This force can be decomposed into axial force and radial force. The radial force causes the wood fibers to be squeezed against the hole wall. Furthermore, due to the friction between the drill bit and the wood fibers, which is also generated by the outward squeezing force of the drill bit on the wood fibers, the outer wall of the drill bit exerts an outward supporting force on the inner wall of the wood panel at the drilling location. This force can easily cause the wood panel to crack or deform. To solve the above problems, this invention provides a novel drilling machine for wood panel processing. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a drilling machine for wood processing, the specific technical solution of which is as follows:

[0004] A drilling machine for wood processing includes a drill bit structure for drilling holes in wood. The drill bit structure includes a support sleeve, multiple drill bits, a moving ring, and a positioning ring. The multiple drill bits are arranged in a ring around the circumference of the support sleeve. The drill bits are slidably mounted on the end face of the support sleeve, and the sliding direction of the drill bits is along the radial direction of the support sleeve. The moving ring and the positioning ring are both sleeved on the outer wall of the support sleeve. The moving ring slides on the support sleeve, and the positioning ring blocks and limits the movement of the moving ring. Multiple support arms are fixed on the moving ring. The support arms are connected to the drill bits through inclined adjusting arms, and the support arms are connected to the positioning ring through a first leaf spring.

[0005] Furthermore, the drill bit consists of a support part that provides support and a flat cutter part and a side cutter part that provide cutting. Both the flat cutter part and the side cutter part are mounted on the support part, with the side cutter part located outside the flat cutter part. The flat cutter part is used to cut wood along the axial direction of the support sleeve, and the side cutter part is used to cut wood along the circumferential direction of the support sleeve.

[0006] Furthermore, the end of the flat blade portion away from the support portion is configured as a concave arc shape, and the opening of the concave arc shape is inclined toward the axis of the support sleeve.

[0007] Furthermore, the flat blade portion is inclined, and a spiral portion is provided between the flat blade portion and the support portion.

[0008] Furthermore, the positioning ring slides on the support sleeve, and the positioning ring and the support sleeve are fixedly connected by a set screw.

[0009] Furthermore, the number of drill bit structures is two sets, and they are distributed vertically, with the line connecting the two sets of drill bit structures coinciding with the axis of the support sleeve;

[0010] It also includes a back plate and a guide rail fixed on the back plate. Two slide blocks are slidably mounted on the guide rail. Each slide block is equipped with a pressure plate and a moving stage. The pressure plate is located between the two sets of drill bit structures. The pressure plate has a process hole for the drill bit structure to pass through. The pressure plate is fixed on the slide block. The moving stage is slidably mounted on the slide block. The moving stage and the pressure plate are connected by a spring. The support sleeve is rotatably mounted on the moving stage.

[0011] Furthermore, a guide rod is fixed on one of the movable platforms, and an abutment plate is slidably disposed on the guide rod. The abutment plate and the guide rod are connected by a second leaf spring. A support sleeve on the movable platform slides through the movable platform and is rotatably mounted on the abutment plate. A first motor for providing power for the rotation of the support sleeve is provided on the abutment plate.

[0012] Another movable platform is provided with an abutment rod, which works in conjunction with an abutment plate, and the movable platform is provided with a first motor of the same structure, which is used to provide rotational power to the support sleeve on the movable platform;

[0013] The two support sleeves rotate in opposite directions.

[0014] Furthermore, the back plate is provided with a power unit for driving the two moving platforms to move synchronously in opposite directions. The power unit includes a second motor fixed on the back plate and a threaded rod installed on the output end of the second motor. The threaded rod passes through the two moving platforms, and the outer wall threads of the threaded rods on the two moving platforms are rotated in opposite directions.

[0015] The advantages of this invention are:

[0016] By sliding the drill bit along the radial direction of the support sleeve and through the linkage design of the support arm and the adjusting arm, the hole diameter can be dynamically adjusted according to the actual situation during the drilling process. This helps to reduce the risk of wood fiber compression and wood board cracking caused by excessive radial force during drilling, because the drill bit structure can automatically adjust according to the drilling resistance, reducing the lateral pressure on the wood board. In summary, this invention effectively solves the problem of wood board cracking and deformation caused by traditional drilling processes through innovative drill bit structure design, and realizes a more efficient, more accurate and safer wood board drilling method. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 yes Figure 1 A schematic diagram of the exploded structure;

[0020] Figure 3 yes Figure 2 Enlarged structural diagram of the intermediate pressure plate and the moving stage;

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of the middle support sleeve structure;

[0022] Figure 5 yes Figure 4 Enlarged schematic diagram of the middle drill bit structure;

[0023] Reference numerals: 1. Support sleeve; 2. Drill bit; 3. Moving ring; 4. Positioning ring; 5. Support arm; 6. Adjusting arm; 7. First leaf spring; 8. Support part; 9. Flat cutting part; 10. Side cutting part; 11. Concave arc shape; 12. Spiral part; 13. Back plate; 14. Guide rail; 15. Slide; 16. Pressure plate; 17. Moving table; 18. Spring; 19. Guide rod; 20. Abutment plate; 21. Second leaf spring; 22. Abutment rod; 23. First motor; 24. Second motor; 25. Threaded rod. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0027] like Figures 1 to 5 As shown, a drilling machine for wood processing according to the present invention includes a drill bit structure for drilling holes in wood. The drill bit structure includes a support sleeve 1, a plurality of drill bits 2, a moving ring 3, and a positioning ring 4. The plurality of drill bits 2 are arranged in a ring around the circumference of the support sleeve 1. The drill bits 2 are slidably mounted on the end face of the support sleeve 1, and the sliding direction of the drill bits 2 is along the radial direction of the support sleeve 1. The moving ring 3 and the positioning ring 4 are both sleeved on the outer wall of the support sleeve 1. The moving ring 3 slides on the support sleeve 1, and the positioning ring 4 blocks and limits the moving ring 3. A plurality of support arms 5 are fixed on the moving ring 3. The support arms 5 are connected to the drill bits 2 through an inclined adjusting arm 6, and the support arms 5 are connected to the positioning ring 4 through a first leaf spring 7.

[0028] In detail, multiple drill bits 2 are used to cut the wooden board at the drilling position. Columnar residue remains between the drill bits 2. As the drilling depth increases, the residue can extend into the support sleeve 1. The support sleeve 1 provides support for the multiple drill bits 2. Since the positioning ring 4 limits the position of the moving ring 3, the position of the drill bits 2 can be fixed in its natural state with the help of the first leaf spring 7. Because the drill bits 2 slide radially on the end face of the support sleeve 1, the drill bits 2 can be guided in the opposite direction by the support arm 5 and the adjusting arm 6 to prevent the moving ring 3 from rotating on the support sleeve 1. Because the adjusting arm 6 is inclined, when the drill bits 2 move towards the axis of the support sleeve 1, the drill bits 2 will pull the moving ring 3 away from the positioning ring 4 through the adjusting arm 6 and the support arm 5. At this time, the first leaf spring 7 undergoes elastic deformation.

[0029] In use, rotating the support sleeve 1 causes the structure on it to rotate synchronously. At this time, due to the centrifugal force of the first leaf spring 7 and the drill bit 2, the moving ring 3 abuts against the positioning ring 4, and the position of the drill bit 2 is fixed. Moving the support sleeve 1 causes multiple drill bits 2 to move vertically toward the wooden board, and the multiple drill bits 2 drill holes in the wooden board. During drilling, the drill bit 2 will exert an outward squeezing force on the wood fibers at the drilling position of the wooden board. Therefore, in the opposite direction, the wood fibers will exert a force on the drill bit 2 toward the axis of the support sleeve 1. This force will push the drill bit 2 to move on the support sleeve 1 toward the axis of the support sleeve 1. At this time, the first leaf spring 7 undergoes elastic deformation, and the rotation radius of the multiple drill bits 2 decreases. As the drilling depth increases and due to the centrifugal force and the elastic force of the first leaf spring 7, the drill bit 2 will gradually cut the inner wall of the drill hole, thereby increasing the hole diameter until the specified requirements are met. At this time, the moving ring 3 abuts against the positioning ring 4, thus achieving a smooth drilling method and avoiding cracking of the wooden board when drilling.

[0030] By sliding the drill bit 2 along the radial direction of the support sleeve 1, and through the linkage design of the support arm 5 and the adjusting arm 6, the hole diameter can be dynamically adjusted according to the actual situation during the drilling process. This helps to reduce the risk of wood fiber compression and wood board cracking caused by excessive radial force during drilling, because the drill bit structure can automatically adjust according to the drilling resistance, reducing the lateral pressure on the wood board. In summary, this invention effectively solves the problem of wood board cracking and deformation caused by traditional drilling processes through innovative drill bit structure design, and realizes a more efficient, more accurate and safer wood board drilling method.

[0031] Furthermore, the drill bit 2 is composed of a support part 8 that provides support and a flat cutter part 9 and a side cutter part 10 that provide cutting. Both the flat cutter part 9 and the side cutter part 10 are mounted on the support part 8. The side cutter part 10 is located outside the flat cutter part 9. The flat cutter part 9 is used to cut wood along the axial direction of the support sleeve 1, and the side cutter part 10 is used to cut wood along the circumferential direction of the support sleeve 1.

[0032] In detail, one end of the support part 8 is slidably mounted on the support sleeve 1 in the radial direction, the flat blade part 9 is set on the other end of the support part 8, and the side blade part 10 is located on the side of the flat blade part 9 away from the axis of the support sleeve 1. When drilling, the flat blade part 9 performs vertical cutting on the wood fibers on the wood board in the axial direction of the support sleeve 1, and at the same time, the side blade part 10 will cut the inner wall of the wood board at the cutting point of the flat blade part 9 again in the circumferential direction of the support sleeve 1, thereby realizing the working mode of drilling and enlarging.

[0033] During operation, the inner wall of the drill bit 2 exerts a squeezing force on the drill bit 2 at the drilling position of the wooden board. Therefore, as the drilling depth increases, the distance between the drill bit 2 and the axis of the support sleeve 1 shortens until the wooden board is drilled through. As the support sleeve 1 and the drill bit 2 continue to rotate, the elastic force of the first leaf spring 7 and the inertial force of the drill bit 2 are used to cut and enlarge the hole through the side cutter part 10 until the hole reaches the specified size. This can reduce the external support effect of the drill bit on the wooden board when drilling the wooden board.

[0034] Furthermore, the end of the flat blade 9 away from the support part 8 is configured as a concave arc 11, and the opening of the concave arc 11 is inclined toward the axial direction of the support sleeve 1.

[0035] In detail, by setting the end of the flat blade 9 to a concave arc 11, the force exerted by the flat blade 9 on the drilling position of the wooden board can be tilted inward when the drill bit is feeding and drilling, thereby reducing the external support force on the wooden board and preventing the wooden board from cracking.

[0036] Furthermore, the flat blade portion 9 is inclined, and a spiral portion 12 is provided between the flat blade portion 9 and the support portion 8.

[0037] In detail, since a large amount of wood chips are generated during drilling, the inclined setting of the flat blade 9 can guide the wood chips out of the hole. The concave arc 11 can guide the wood chips guided by the flat blade 9 to the surrounding areas, thereby quickly dispersing the wood chips in all directions, facilitating chip removal, and preventing the wood chips from moving onto the support sleeve 1 and affecting the normal use of the moving ring 3, positioning ring 4, support arm 5 and adjusting arm 6.

[0038] Furthermore, the positioning ring 4 slides on the support sleeve 1, and the positioning ring 4 and the support sleeve 1 are fixedly connected by a set screw.

[0039] In detail, by enabling the positioning ring 4 to adjust its position on the support sleeve 1, the position of the moving ring 3 on the support sleeve 1 when it abuts against the positioning ring 4 can be easily adjusted, thus facilitating the adjustment of the drilling diameter.

[0040] Furthermore, the number of the drill bit structures is two sets, and they are distributed vertically, with the line connecting the two sets of drill bit structures coinciding with the axis of the support sleeve 1;

[0041] It also includes a back plate 13 and a guide rail 14 fixed on the back plate 13. Two slide blocks 15 are slidably provided on the guide rail 14. Each slide block 15 is provided with a pressure plate 16 and a moving platform 17. The pressure plate 16 is located between the two sets of drill bit structures. The pressure plate 16 has a process hole for the drill bit structure to pass through. The pressure plate 16 is fixed on the slide block 15. The moving platform 17 is slidably installed on the slide block 15. The moving platform 17 and the pressure plate 16 are connected by a spring 18. The support sleeve 1 is rotatably installed on the moving platform 17.

[0042] In detail, the two sets of drill bit structures are oriented opposite each other, and the two pressure plates 16 are located between the two sets of drill bit structures. The two pressure plates 16 are used to clamp and fix the wooden board. In use, the two moving platforms 17 are pushed closer to each other. Due to the action of the spring 18, the moving platforms 17 drive the pressure plates 16 and the slide 15 to move synchronously. The slide 15 slides on the guide rail 14, and the back plate 13 supports the guide rail 14. The two pressure plates 16 approach each other and clamp and fix the wooden board between them. The drill hole on the wooden board is located in the process hole on the pressure plate 16. When the two pressure plates 16 clamp the wooden board, the two pressure plates 16 stop moving. At this time, the two moving platforms 17 continue to move. The moving platforms 17 slide on the slide 15, and the spring 18 undergoes elastic deformation. The moving platforms 17 push the drill bit structure through the process hole on the pressure plate 16 and drill the wooden board.

[0043] With the above structure, drilling can be performed on both the top and bottom surfaces of the wooden board simultaneously, which makes it easier to distribute the force evenly on the board. The two pressure plates 16 are used to fix the board. By setting the spring 18, the force can be applied only to the moving table 17, so that the pressure plates 16 can perform the clamping function. The moving table 17 and the drill bit structure on it can perform the feeding and drilling function. The operation is simple and the functionality is strong.

[0044] Furthermore, a guide rod 19 is fixed on one of the movable platforms 17, and an abutment plate 20 is slidably disposed on the guide rod 19. The abutment plate 20 and the guide rod 19 are connected by a second leaf spring 21. The support sleeve 1 on the movable platform 17 slides through the movable platform 17 and is rotatably mounted on the abutment plate 20. The abutment plate 20 is provided with a first motor 23 for providing power for the rotation of the support sleeve 1.

[0045] Another movable platform 17 is provided with an abutment rod 22, which works in conjunction with the abutment plate 20. The movable platform 17 is also provided with a first motor 23 of the same structure, which is used to provide rotational power to the support sleeve 1 on the movable platform 17.

[0046] The two support sleeves 1 rotate in opposite directions.

[0047] In detail, due to the action of the second leaf spring 21, the abutment plate 20 abuts against the moving platform 17. When drilling, the two sets of drill bit structures drill holes in the wooden board from both the top and bottom surfaces simultaneously. At this time, the two moving platforms 17 approach each other, and the first motor 23 provides power for the rotation of the support sleeve 1. Since the rotation directions of the two support sleeves 1 are opposite, the rotational friction force of the two sets of drill bit structures on the wooden board on the horizontal plane is opposite in direction, thus canceling each other out and improving the stability of the wooden board when drilling.

[0048] As the two moving platforms 17 approach each other, the two sets of drill bit structures approach each other, and the abutment rod 22 approaches the abutment plate 20. When the distance between the two sets of drill bit structures in the wooden board reaches the specified value, only a small amount of wood fibers remain in the wooden board that has not been drilled through. At this time, with the low pressure of the abutment rod 22 on the abutment plate 20, the abutment plate 20 slides on the guide rod 19, and the second leaf spring 21 undergoes elastic deformation. The two sets of drill bit structures move synchronously and in the same direction, thereby drilling through the round hole in the wooden board.

[0049] Furthermore, the back plate 13 is provided with a power unit for driving the two moving platforms 17 to move synchronously in opposite directions. The power unit includes a second motor 24 fixed on the back plate 13 and a threaded rod 25 installed on the output end of the second motor 24. The threaded rod 25 passes through the two moving platforms 17, and the outer wall threads of the threaded rod 25 on the two moving platforms 17 are rotated in opposite directions.

[0050] In detail, since the outer threads of some threaded rods 25 on the two moving tables 17 rotate in opposite directions, when the threaded rods 25 rotate in one direction, the threaded rods 25 can push the two moving tables 17 to move synchronously in opposite directions, thereby providing power for the two sets of drill bit structures. The second motor 24 provides power for the rotation of the threaded rods 25.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A drilling machine for processing wood panels, characterized in that, The application relates to a drill bit structure for drilling wood boards, which comprises a supporting sleeve (1), a plurality of drill bits (2), a moving ring (3) and a positioning ring (4), the drill bits (2) are arranged in a ring shape around the circumferential direction of the supporting sleeve (1), the drill bits (2) are slidingly arranged on the end surface of the supporting sleeve (1), the sliding direction of the drill bits (2) is along the radial direction of the supporting sleeve (1), the moving ring (3) and the positioning ring (4) are both arranged on the outer wall of the supporting sleeve (1), the moving ring (3) slides on the supporting sleeve (1), the positioning ring (4) blocks and positions the moving ring (3), a plurality of supporting arms (5) are fixed on the moving ring (3), the supporting arms (5) and the drill bits (2) are connected through inclined adjusting arms (6), and the supporting arms (5) and the positioning ring (4) are connected through first plate springs (7). The drill bit (2) is composed of a supporting part (8) for supporting, a flat bit part (9) for cutting and a side bit part (10), the flat bit part (9) and the side bit part (10) are both arranged on the supporting part (8), the side bit part (10) is located outside the flat bit part (9), the flat bit part (9) is used for cutting wood along the axis direction of the supporting sleeve (1), and the side bit part (10) is used for cutting wood along the circumferential direction of the supporting sleeve (1). The end part of the flat bit part (9) away from the supporting part (8) is provided with a concave arc shape (11), and the opening of the concave arc shape (11) is inclined towards the axis direction of the supporting sleeve (1). The flat bit part (9) is inclined, and a spiral part (12) is arranged between the flat bit part (9) and the supporting part (8). The positioning ring (4) slides on the supporting sleeve (1), and the positioning ring (4) and the supporting sleeve (1) are fixedly connected through a jackscrew.

2. The wood board processing drill according to claim 1, characterized in that, The number of the drill bit structures is two groups, and the two groups are arranged in an up-down mode, and the connecting line of the two groups of drill bit structures coincides with the axis of the supporting sleeve (1). The back plate (13) and the guide rails (14) fixed on the back plate (13) are further arranged, two sliding seats (15) are slidingly arranged on the guide rails (14), a pressing plate (16) and a moving table (17) are arranged on each sliding seat (15), the pressing plate (16) is located between the two groups of drill bit structures, the pressing plate (16) is provided with a process hole for the drill bit structure to pass through, the pressing plate (16) is fixed on the sliding seat (15), the moving table (17) is slidingly arranged on the sliding seat (15), the moving table (17) and the pressing plate (16) are connected through a spring (18), and the supporting sleeve (1) is rotatably arranged on the moving table (17).

3. The wood board processing drill according to claim 2, characterized in that, A guide rod (19) is fixed on one moving table (17), an abutting plate (20) is slidingly arranged on the guide rod (19), the guide rod (19) and the abutting plate (20) are connected through a second plate spring (21), the supporting sleeve (1) on the moving table (17) slides through the moving table (17) and is rotatably arranged on the abutting plate (20), and the abutting plate (20) is provided with a first motor (23) for providing power for the rotation of the supporting sleeve (1). Another mobile platform (17) is provided with an abutting rod (22) which is used in cooperation with the abutting plate (20), and the mobile platform (17) is provided with a first motor (23) of the same structure, which is used to provide rotating power for the support sleeve (1) on the mobile platform (17). The rotating directions of the two support sleeves (1) are opposite.

4. The wood board processing drill according to claim 3, characterized in that, The back plate (13) is provided with a power unit for driving the two mobile platforms (17) to move synchronously and reversely, the power unit comprises a second motor (24) fixed on the back plate (13) and a threaded rod (25) installed on the output end of the second motor (24), the threaded rod (25) penetrates through the two mobile platforms (17), and the outer walls of the threaded rod (25) on the two mobile platforms (17) are opposite in screw rotation direction.

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