Woodworking deep drilling numerical control lathe

Abstract

The utility model relates to the technical field of deep drilling, and discloses a woodworking deep drilling numerical control lathe which is characterized in that a screw is fixedly mounted at the end part, far away from a tailstock, of a gun drill column, a drill bit is sleeved on the outer ring of the screw in a threaded manner, a thread matched with the screw is arranged on the inner ring of the drill bit, and the drill bit is matched with the screw; by arranging a gun drill column, a screw, a drill bit and other structures, convenient replacement and rapid positioning are achieved, the drill bit is detached and replaced by rotating the position, located on the outer ring of the screw, of the drill bit, and after replacement is completed, the direction in which the spindle box drives the wooden pole to rotate is the same as the screwing direction of the drill bit; after the sharp part of the screw is in contact with the wooden pole, a central positioning point can be automatically formed, and the screw can be screwed into the wooden pole, so that stable positioning is realized, and the effect of convenient replacement is achieved.

Description

Technical Field

[0001] This utility model relates to the field of deep drilling technology, and in particular to a CNC lathe for deep drilling in woodworking. Background Technology

[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting and machining the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other machining operations.

[0003] Existing technologies for drilling deep holes using lathes have certain shortcomings. For example, the thinner drill bit can cause vibration and shaking during drilling, resulting in burrs or other defects in the drilled grooves and holes. When drilling grooves of different diameters, different drill bits need to be switched, and the drill bit tip cannot be positioned, which may cause vibration and shaking. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a woodworking deep drilling CNC lathe, which has the advantages of stable drilling, easy switching, and easy chip removal, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a CNC lathe for deep drilling in woodworking, comprising a bed, a spindle box fixedly installed on one side of the bed, limit cylinders fixedly installed on both sides of the spindle box, a three-jaw gear plate fixedly installed inside the limit cylinders, slide rails symmetrically fixedly installed on the top surface of the bed, a slide block slidably installed between the top outer rings of the slide rails, a retainer fixedly installed on one side of the slide block, a tailstock slidably installed between the top outer rings of the slide rails on one side of the slide block, a push rod threaded inside the tailstock, a wooden rod fixedly engaged inside the three-jaw chuck inside the spindle box, the wooden rod passing through the retainer, the wooden rod rotatably installed inside the retainer, and a gun drill column fixedly connected inside the push rod.

[0006] With the above-mentioned structural configuration, high-pressure gas is blown into the barrel. The high-pressure gas is then transported to the chip removal hole and the nozzle through airflow holes A and B. The gas ejected from the nozzle will spray the wood chips generated by the drill bit towards the tailstock. When the wood chips pass the chip removal hole on the outer ring of the drill rod, the chip removal hole will continue to spray gas, ejecting the wood chips out of the drilled hole, thus achieving stable chip removal.

[0007] Preferably, an airflow hole A is provided through the inside of the push rod, a turntable is fixedly sleeved on the outer ring of the push rod on one side of the tailstock, and an insert is fixedly installed on one side of the push rod at the center of the turntable's axis.

[0008] With the above-described structure, an external air tube is connected to the insert, and high-pressure gas is blown in through the external air tube and delivered through airflow hole A, so that airflow hole A can achieve the delivery effect.

[0009] Preferably, a screw is fixedly installed at the end of the drill string away from the tailstock. The screw is similar to a self-tapping screw, with a threaded groove on its outer ring and a pointed end. A drill bit is threaded onto the outer ring of the screw, and the inner ring of the drill bit has a thread that matches the screw. The drill bit and the screw are compatible. An airflow hole B is opened through the inside of the drill string. A connecting groove is evenly opened in a circular shape inside the screw. Chip removal holes are evenly opened in a circular shape on the outer ring of the drill string, and the chip removal holes are arranged in a linear array on the outer ring of the drill string.

[0010] With the above structural design, users can adjust the required drill bit diameter according to their own needs. The drill bit can be disassembled and replaced by rotating the position of the drill bit on the outer ring of the screw. After replacement, the direction in which the spindle box drives the wooden rod to rotate is the same as the direction of the drill bit tightening. When the drill bit drills a hole in the wooden rod, it will only tighten the drill bit more and more.

[0011] Preferably, the drill bit has a transmission cavity inside, which is connected to the connecting groove. The transmission cavity is connected to the airflow hole B through the connecting groove. The airflow hole B is connected to the airflow hole A. The drill bit has a uniformly distributed nozzle in a circular shape at its end, which is connected to the transmission cavity.

[0012] With the above-mentioned structure, high-pressure air is ejected from the nozzle and the chip removal hole respectively. When the drill bit is working, it drills through the inside of the wooden rod, and the wood chips inside are blown out by the nozzle. When the wood chips are located on the outer ring of the drill rod, they are blown out by the high-pressure air ejected from the chip removal hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This woodworking deep drilling CNC lathe features a structure with a gun drill column, screws, and drill bits for easy replacement and quick positioning. Disassembly and replacement are achieved by rotating the drill bit to the position of the screw's outer ring. After replacement, the spindle box rotates the wood rod in the same direction as the drill bit's tightening. When the drill bit drills into the wood rod, it only tightens the drill bit. The sharp point of the screw automatically forms a center positioning point after contacting the wood rod. Due to the screw's design, it screws into the interior of the wood rod, achieving stable positioning and facilitating replacement.

[0015] 2. This woodworking deep drilling CNC lathe facilitates chip removal by incorporating a spray nozzle, connecting groove, and chip removal hole. High-pressure gas is injected into the insert, and the gas is transported through airflow holes A and B towards the chip removal hole and spray nozzle. The gas ejected from the spray nozzle propels the wood chips generated by the drill bit towards the tailstock. When the wood chips pass through the chip removal hole on the outer ring of the drill rod, the chip removal hole continues to inject gas, ejecting the wood chips out of the drilled hole, achieving stable and rapid chip removal. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the tailstock structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the gun drill column of this utility model;

[0019] Figure 4 This is an exploded view of the drill bit structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the drill bit of this utility model;

[0021] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Bed; 2. Spindle box; 21. Limiting sleeve; 3. Slide rail; 4. Slide block; 41. Cage; 5. Tailstock; 51. Push rod; 52. Airflow hole A; 53. Turntable; 54. Insertion sleeve; 6. Wooden rod; 7. Gun drill column; 71. Screw; 72. Drill bit; 721. Transfer chamber; 722. Ejector outlet; 73. Airflow hole B; 74. Connecting groove; 75. Chip removal hole. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-2A woodworking deep drilling CNC lathe includes a bed 1, a spindle box 2 fixedly mounted on one side of the bed 1, and limit sleeves 21 fixedly mounted on both sides of the spindle box 2. A three-jaw chuck is fixedly mounted inside the limit sleeve 21 for clamping the product to be processed and facilitating the fixation of the product position. A slide rail 3 is symmetrically fixedly mounted on the top surface of the bed 1. A slide seat 4 is slidably mounted between the top outer rings of the slide rail 3. A retainer 41 is fixedly mounted on one side of the slide seat 4. A tailstock 5 is slidably mounted between the top outer rings of the slide rail 3 on one side of the slide seat 4. A push rod 51 is threaded inside the tailstock 5. A wooden rod 6 is fixedly engaged inside the spindle box 2 within the three-jaw chuck. The wooden rod 6 passes through the retainer 41 and is rotatably mounted inside the retainer 41. A gun drill column 7 is fixedly connected inside the push rod 51.

[0025] Please see Figures 1-3 An airflow hole A52 is provided through the inside of the push rod 51. The outer ring of the push rod 51 is fixedly sleeved with a turntable 53 on one side of the tailstock 5. A tube 54 is fixedly installed on one side of the push rod 51 at the center of the axis of the turntable 53. An external air pipe is connected to the tube 54. High-pressure gas is blown in through the external air pipe and transported through the airflow hole A52, so that the airflow hole A52 has a transporting effect. (The external air pipe is prior art and is not shown in this application. It will not be described in detail. Please refer to application number 2021212909063, a deep hole drilling CNC lathe, which is generally similar to the connecting pipe in the above case.)

[0026] Please see Figures 1-6 A screw 71 is fixedly installed at the end of the drill string 7 away from the tailstock 5. The screw 71 is similar to a self-tapping screw. The outer ring of the screw 71 has a threaded groove. The end of the screw 71 is sharp, which is beneficial for positioning on the end face of the wooden rod 6 when it comes into contact with it. A drill bit 72 is threaded onto the outer ring of the screw 71. The inner ring of the drill bit 72 has a thread that matches the screw 71. The drill bit 72 and the screw 71 are compatible. An air vent B73 is opened through the inside of the drill string 7. A connecting groove 74 is evenly opened in a circular shape inside the screw 71. Chip removal holes 75 are evenly opened in a circular shape on the outer ring of the drill string 7. The chip removal holes 75 are arranged in a linear array on the outer ring of the drill string 7.

[0027] When using the drill bit 72, the user can adjust the diameter of the drill bit 72 according to their own needs. The drill bit 72 can be disassembled and replaced by rotating the position of the drill bit 72 on the outer ring of the screw 71. After the replacement is completed, the direction of rotation of the spindle box 2 and the wooden rod 6 is the same as the tightening direction of the drill bit 72. When the drill bit 72 drills a hole in the wooden rod 6, the drill bit 72 will only become tighter and tighter and will not fall off.

[0028] Please see Figures 1-6The drill bit 72 has a transmission cavity 721 inside, which is connected to the connecting groove 74. The transmission cavity 721 is connected to the airflow hole B73 through the connecting groove 74. The airflow hole B73 is connected to the airflow hole A52. The end of the drill bit 72 has a uniformly distributed nozzle 722 in a circular shape, which is connected to the transmission cavity 721. High-pressure air is blown into the airflow hole A52 and ejected from the nozzle 722 and the chip removal hole 75 respectively. When the drill bit 72 is working, it drills through the inside of the wooden rod 6, and the wood chips inside are blown out by the nozzle 722. When the wood chips are located on the outer ring of the drill string 7, they are blown out by the high-pressure air ejected from the chip removal hole 75, so as to achieve stable discharge of the wood chips generated by the drill bit 72.

[0029] Working principle: The wooden rod 6 to be processed is inserted into the three-jaw toothed disc inside the limiting cylinder 21. The three-jaw toothed disc clamps the wooden rod 6, achieving stable clamping. The motor inside the spindle box 2 is started, driving the wooden rod 6 to rotate stably. The tailstock 5 is moved to the position of the outer ring of the slide rail 3, so that the screw 71 contacts the wooden rod 6. After the sharp part of the screw 71 contacts the wooden rod 6, it will automatically form a center positioning point. Due to the setting of the screw 71, it will screw into the interior of the wooden rod 6, achieving stable positioning. The turning disk 53 is rotated to push the rod. The effect of the drill string 7 is to enable the drill bit 72 to drill a hole in the wooden rod 6. By blowing high-pressure gas into the insert 54, the high-pressure gas will be transported to the chip removal hole 75 and the ejection port 722 through the air flow hole A52 and the air flow hole B73. The gas ejected from the ejection port 722 will spray the wood chips generated by the drill bit 72 towards the tailstock 5. When the wood chips pass the chip removal hole 75 on the outer ring of the drill string 7, the chip removal hole 75 will continue to spray gas to eject the wood chips out of the drilled hole, thus achieving stable chip removal.

Claims

1. A numerically controlled lathe for deep drilling of wood, comprising a bed (1), characterized in that: The side of the bed body (1) is fixedly installed with a main shaft box (2), the two sides of the main shaft box (2) are fixedly installed with a limiting cylinder (21), the inside of the limiting cylinder (21) is fixedly installed with a three-jaw chuck, the top surface of the bed body (1) is symmetrically fixedly installed with a slide rail (3), the top outer circle of the slide rail (3) is slidably installed with a sliding seat (4), one side of the sliding seat (4) is fixedly installed with a retainer (41), the top outer circle of the slide rail (3) is slidably installed with a tailstock (5) on one side of the sliding seat (4), the inside of the tailstock (5) is threadedly installed with a top rod (51), the inside of the main shaft box (2) is fixedly connected with a wooden rod (6) inside the three-jaw chuck, the wooden rod (6) passes through the retainer (41) and is rotatably installed in the retainer (41), and the inside of the top rod (51) is fixedly connected with a gun drill column (7).

2. A CNC lathe for deep drilling of wood according to claim 1, characterized in that: The inside of the top rod (51) is provided with an airflow hole A (52), the outer circle of the top rod (51) is fixedly sleeved with a rotating disc (53) on one side of the tailstock (5), and one side of the top rod (51) is fixedly installed with a plug cylinder (54) at the shaft center of the rotating disc (53).

3. A CNC lathe for deep drilling of wood according to claim 2, characterized in that: The end, away from the tailstock (5), of the gun drill column (7) is fixedly installed with a screw (71), the screw (71) is similar to a self-tapping screw, the outer circle of the screw (71) is provided with a threaded groove, the end of the screw (71) is sharp, the outer circle of the screw (71) is threadedly sleeved with a drill bit (72), the inner circle of the drill bit (72) is provided with a thread matched with the screw (71), the drill bit (72) is matched with the screw (71), the inside of the gun drill column (7) is provided with an airflow hole B (73), the inside of the screw (71) is uniformly provided with a connecting groove (74) in a ring shape, and the outer circle of the gun drill column (7) is uniformly provided with a chip removal hole (75) in a ring shape.

4. A CNC deep hole wood drilling lathe according to claim 3, characterized in that: The inside of the drill bit (72) is provided with a transmission cavity (721), the transmission cavity (721) is in communication with the connecting groove (74), the transmission cavity (721) is in communication with the airflow hole B (73) through the connecting groove (74), the airflow hole B (73) is in communication with the airflow hole A (52), the end of the drill bit (72) is uniformly provided with a jet outlet (722) in a ring shape, and the jet outlet (722) is in communication with the transmission cavity (721).

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