Deep hole drilling tool structure

Abstract

The utility model discloses deep hole drilling tool structure, specifically relates to deep hole drilling tool technical field, including tool main part, first chuck and second chuck, and the first chuck and second chuck opposite one end with tool main part between all are fixed through the bolt, the inside of tool main part is provided with the chip removal hole, the inside of chip removal hole is provided with a plurality of installation cylinder, and a plurality of installation cylinders are fixedly installed on tool main part, and are provided with cleaning assembly on a plurality of installation cylinders. The utility model discloses through tool main part can drive installation cylinder and cleaning assembly rotation in the process of rotating, thereby drive precompression spring compression, low rotational speed, precompression spring release elastic potential, push the chip of pushing plate, high rotational speed, centrifugal force and precompression spring thrust superposition enhance thrust, rotate nut and make it slide on the screw rod, thereby can adjust precompression, simple operation can clean up the chip fully.

Description

Technical Field

[0001] This utility model relates to the field of deep hole drilling tool technology, and more specifically, to the structure of deep hole drilling tools. Background Technology

[0002] Deep hole drilling is a precision process that uses specialized tools such as gun drills to machine holes with a depth-to-diameter ratio of 20:1 to 400:1. Its core technology adopts a composite structure of an internal cooling channel and an external chip removal groove that runs through the entire length of the tool. By smoothing the hole wall through the guide sleeve of the tool head, the straightness accuracy can be improved to 0.08mm / m. Compared with traditional processes such as twist drilling, this technology completes cutting and surface finishing simultaneously in one pass. It is irreplaceable in the machining of long shaft parts in industries such as energy, automobiles, and aerospace. Deep hole drilling tools are tools specifically designed for machining deep holes.

[0003] A search revealed that Chinese Patent CN222470824U discloses a deep hole drilling tool structure. This structure incorporates an elastic element and a pusher section. When the tool is in operation, it is driven to rotate by a drive mechanism. This rotation of the tool also drives the elastic element and pusher section within the chip removal port, generating outward centrifugal force. This force pusher section moves the chips within the chip removal port, expelling them. Furthermore, the pusher section, under the traction of the elastic element, reciprocates, continuously pushing the chips and preventing them from accumulating inside the tool, thus improving chip removal efficiency.

[0004] When the aforementioned deep hole drilling tool is in use, the drive mechanism drives the tool to rotate, and the elastic element and the pusher part can generate outward centrifugal force, which in turn pushes the chips in the chip discharge port. However, the magnitude of the centrifugal force depends entirely on the tool speed. When machining at low speed, such as drilling hard and brittle metals or small-diameter deep holes, the centrifugal force is insufficient, and the pusher part has a weak pushing force on the chips, which easily leads to the accumulation and blockage of chips in the chip discharge port, thereby affecting the machining accuracy. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a deep hole drilling tool structure, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deep hole drilling tool structure, including a tool body, a first chuck, and a second chuck, with the opposite ends of the first and second chucks fixed to the tool body by bolts. The tool body has a chip removal hole inside, and multiple mounting cylinders are arranged inside the chip removal hole. These mounting cylinders are all fixedly mounted on the tool body. Each mounting cylinder has a cleaning assembly, which includes a pusher plate, a mounting plate, a connecting rod, a pre-compression spring, a lead screw, a nut, and two sliding plates. One end of the pusher plate is fixedly connected to the mounting plate, and one end of the mounting plate passes through one side of the mounting cylinder and is fixedly connected to the connecting rod. One end of the connecting rod passes through the other side of the mounting cylinder and is fixedly connected to the lead screw. The pre-compression spring is movably sleeved on the connecting rod, and both ends of the pre-compression spring are fixedly connected to the mounting cylinder and the mounting plate, respectively. The nut is movably sleeved on the lead screw.

[0007] Furthermore, the cleaning component has two grooves inside, and the two slide plates are located inside the two grooves respectively, with the opposite sides of the two slide plates being fixedly connected to the mounting plate.

[0008] As can be seen, in the above technical solution, the two slide plates move in the two slide grooves respectively, which can prevent the mounting plate from deflecting.

[0009] Furthermore, a second sealing gasket is fixedly embedded inside one side of the mounting cylinder, and the inner wall of the second sealing gasket is in contact with the mounting plate.

[0010] As can be seen, in the above technical solution, the sealing performance between the mounting plate and the mounting cylinder can be improved by using the second sealing gasket.

[0011] Furthermore, a third sealing gasket is fixedly connected to the other side of the mounting cylinder, and the inner wall of the third sealing gasket is in contact with the lead screw.

[0012] It can be seen that in the above technical solution, the sealing performance between the lead screw and the mounting cylinder can be improved by using the third sealing gasket.

[0013] Furthermore, both sides of the cutter body are movably embedded with first sealing gaskets, and the opposite sides of the two first sealing gaskets are in contact with the first chuck and the second chuck, respectively.

[0014] It can be seen that the above technical solution can improve the sealing between the second chuck and the tool body, and between the first chuck and the tool body.

[0015] Furthermore, a sponge pad is movably embedded inside one side of the cutter body, and one side of the sponge pad is in contact with the second chuck.

[0016] As can be seen, in the above technical solution, the coolant penetrates to the cutter head at the second chuck through the contact surface between the sponge pad and the second chuck, providing continuous cooling for the cutter head. At the same time, the sponge pad can prevent the coolant from splashing excessively due to centrifugal force, reducing cooling leakage and loss.

[0017] Furthermore, multiple heat-absorbing columns are fixedly connected inside the cutter body, which serve to improve the heat dissipation rate.

[0018] The technical effects and advantages of this utility model are as follows: 1. This utility model allows the main body of the cutter to rotate, which in turn drives the mounting cylinder and the cleaning component to rotate, thereby compressing the pre-compression spring. At low speed, the pre-compression spring releases its elastic potential energy and pushes the pusher plate to push the chips. At high speed, the centrifugal force and the pushing force of the pre-compression spring are superimposed to enhance the pushing force. By rotating the nut and letting it slide on the screw, the amount of pre-compression can be adjusted. The operation is simple and can thoroughly clean the debris. 2. This utility model can absorb part of the coolant through the sponge pad. When the tool body rotates, under the action of centrifugal force, the coolant adsorbed inside the sponge pad will migrate along the pores towards the direction closer to the second chuck. It will penetrate to the tool head at the second chuck through the contact surface between the sponge pad and the second chuck, providing continuous cooling for the tool head. Multiple heat-absorbing columns can quickly absorb the heat conducted to the tool body after cutting. The structure is simple and easy to use. Attached Figure Description

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a perspective view of the present invention from a downward angle; Figure 3 This is a cross-sectional view of the main body of the tool and a schematic diagram of the assembly structure of the mounting cylinder of this utility model. Figure 4 This is a cross-sectional view of the mounting cylinder and a schematic diagram of the assembly structure of the cleaning component of this utility model. Figure 5 This is a schematic diagram of the cleaning component structure of this utility model.

[0021] In the figure: 1. Tool body; 2. First chuck; 3. Second chuck; 4. Chip removal hole; 5. First sealing gasket; 6. Sponge pad; 7. Heat absorption column; 8. Mounting cylinder; 9. Cleaning assembly; 10. Second sealing gasket; 11. Third sealing gasket; 12. Slide groove; 901. Push plate; 902. Mounting plate; 903. Connecting rod; 904. Pre-compression spring; 905. Lead screw; 906. Nut; 907. Slide plate. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Refer to the instruction manual appendix Figure 1-4 The deep hole drilling tool structure of this embodiment includes a tool body 1, a first chuck 2, and a second chuck 3. The opposing ends of the first chuck 2 and the second chuck 3 are fixed to the tool body 1 by bolts. A chip removal hole 4 is provided inside the tool body 1. Multiple mounting cylinders 8 are disposed inside the chip removal hole 4 and are fixedly mounted on the tool body 1. Each mounting cylinder 8 is provided with a cleaning assembly 9, which includes a pusher plate 901, a mounting plate 902, a connecting rod 903, and a pre-compression spring 904. 04. Screw 905, nut 906 and two slide plates 907. One end of push plate 901 is fixedly connected to mounting plate 902. One end of mounting plate 902 passes through one side of mounting cylinder 8 and is fixedly connected to connecting rod 903. One end of connecting rod 903 passes through the other side of mounting cylinder 8 and is fixedly connected to screw 905. Pre-compression spring 904 is movably sleeved on connecting rod 903, and both ends of pre-compression spring 904 are fixedly connected to mounting cylinder 8 and mounting plate 902 respectively. Nut 906 is movably sleeved on screw 905.

[0024] like Figure 3-5 As shown, the cleaning component 9 has two grooves 12 inside, and two slide plates 907 are located inside the two grooves 12 respectively. The opposite sides of the two slide plates 907 are fixedly connected to the mounting plate 902. A second sealing gasket 10 is fixedly embedded in one side of the mounting cylinder 8, and the inner wall of the second sealing gasket 10 is in contact with the mounting plate 902. A third sealing gasket 11 is fixedly connected to the other side of the mounting cylinder 8, and the inner wall of the third sealing gasket 11 is in contact with the lead screw 905.

[0025] like Figure 3As shown, first sealing gaskets 5 are movably embedded on both sides of the tool body 1, and the opposite sides of the two first sealing gaskets 5 are in contact with the first chuck 2 and the second chuck 3 respectively. A sponge pad 6 is movably embedded inside one side of the tool body 1, and one side of the sponge pad 6 is in contact with the second chuck 3. Multiple heat-absorbing columns 7 are fixedly connected inside the tool body 1, wherein the multiple heat-absorbing columns 7 play the role of improving the heat dissipation speed.

[0026] The tool body 1 is filled with coolant. The sponge pad 6 can absorb some of the coolant. When the tool body 1 rotates, under the action of centrifugal force, the coolant absorbed inside the sponge pad 6 will migrate along the pores towards the second chuck 3. It will then penetrate to the tool tip at the second chuck 3 through the contact surface between the sponge pad and the second chuck 3, providing continuous cooling for the tool tip. At the same time, the sponge pad 6 can prevent the coolant from splashing excessively due to centrifugal force, reducing cooling leakage loss. One end of the multiple heat-absorbing columns 7 is in contact with the inner wall of the tool body 1, which can quickly absorb the heat conducted to the tool body 1 after the tool tip cuts. The other end is inserted into the coolant to transfer the heat to the coolant. The fixation between the second chuck 3 and the tool body 1 can be released by bolts, and the sponge pad 6 can be disassembled and replaced. The structure is simple and easy to use. At the same time, the first sealing gasket 5 can improve the sealing between the second chuck 3 and the tool body 1.

[0027] The usage method of this embodiment is as follows: In use, different cutter heads can be installed on the first chuck 2 or the second chuck 3 respectively. The debris generated by the cutter head can be discharged through the chip discharge hole 4. During the rotation of the cutter body 1, the mounting cylinder 8 and the cleaning component 9 can be rotated. The cleaning component 9 can generate a certain centrifugal force during the rotation, thereby pushing out the debris in the chip discharge hole 4. At the same time, the pusher plate 901 drives the mounting plate 902 to move, and the two slide plates 907 move in the two slide grooves 12 respectively, thereby preventing the mounting plate 902 from deflecting. At the same time, the mounting plate 902 can drive the connecting rod 903, the lead screw 905 and the nut 906 to move, thereby driving the pre-compression spring 904 to compress. At low speed, the pre-compression spring 904 releases elastic potential energy, generating a basic thrust along the axial direction of the chip discharge hole 4, which pushes the pusher plate 901 to push the chips. At high speed, the centrifugal force and the thrust of the pre-compression spring 904 are superimposed to enhance the thrust. Rotate the nut 906 and let it slide on the lead screw 905. Adjust the position of the nut 906 as needed to adjust the pre-compression amount, thereby adapting to chips with different viscosities. The operation is simple and can thoroughly clean the chips. The second sealing gasket 10 can improve the sealing between the mounting plate 902 and the mounting cylinder 8, and the third sealing gasket 11 can improve the sealing between the lead screw 905 and the mounting cylinder 8.

[0028] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A deep hole drilling tool structure, comprising a tool body (1), a first chuck (2), and a second chuck (3), wherein the opposite ends of the first chuck (2) and the second chuck (3) are fixed to the tool body (1) by bolts, characterized in that: The tool body (1) has a chip removal hole (4) inside, and multiple mounting cylinders (8) are arranged inside the chip removal hole (4). All mounting cylinders (8) are fixedly mounted on the tool body (1). Each mounting cylinder (8) is equipped with a cleaning assembly (9). Each cleaning assembly (9) includes a pusher plate (901), a mounting plate (902), a connecting rod (903), a pre-compression spring (904), a lead screw (905), a nut (906), and two sliding plates (907). The pusher plate (901)... One end is fixedly connected to the mounting plate (902), one end of the mounting plate (902) passes through one side of the mounting cylinder (8) and is fixedly connected to the connecting rod (903), one end of the connecting rod (903) passes through the other side of the mounting cylinder (8) and is fixedly connected to the screw rod (905), the pre-compression spring (904) is movably sleeved on the connecting rod (903), and both ends of the pre-compression spring (904) are fixedly connected to the mounting cylinder (8) and the mounting plate (902) respectively, and the nut (906) is movably sleeved on the screw rod (905).

2. The deep hole drilling tool structure according to claim 1, characterized in that: The cleaning component (9) has two grooves (12) inside, and two sliding plates (907) are located inside the two grooves (12) respectively. The opposite side of the two sliding plates (907) is fixedly connected to the mounting plate (902).

3. The deep hole drilling tool structure according to claim 1, characterized in that: A second sealing gasket (10) is fixedly embedded inside one side of the mounting cylinder (8), and the inner wall of the second sealing gasket (10) is in contact with the mounting plate (902).

4. The deep hole drilling tool structure according to claim 1, characterized in that: A third sealing gasket (11) is fixedly connected to the other side of the mounting cylinder (8), and the inner wall of the third sealing gasket (11) is in contact with the lead screw (905).

5. The deep hole drilling tool structure according to claim 1, characterized in that: Both sides of the cutter body (1) are movably embedded with first sealing gaskets (5), and the opposite sides of the two first sealing gaskets (5) are in contact with the first chuck (2) and the second chuck (3) respectively.

6. The deep hole drilling tool structure according to claim 1, characterized in that: A sponge pad (6) is movably embedded inside one side of the cutter body (1), and one side of the sponge pad (6) is in contact with the second chuck (3).

7. The deep hole drilling tool structure according to claim 1, characterized in that: The tool body (1) has multiple heat-absorbing columns (7) fixedly connected inside, which play a role in improving the heat dissipation speed.

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