A self-centering deep hole drilling equipment

Abstract

The present invention relates to the technical field of drilling machines, and specifically to a self-centering deep hole drilling equipment; it comprises a base and a clamping device, the left side of the upper end face of the base is fixedly connected with the clamping device, the middle side of the upper end face of the base is provided with a guide rail, the guide rail is slidably matched with a plurality of support plates, and the support plate is matched with a deep hole drill bit; the present invention sets a plurality of support plates, so that the deep hole drill bit is supported by a plurality of supports, thereby making the deep hole drill bit vibrate less when working, and then sets a plurality of first limit blocks and the support plates to cooperate with each other, so as to realize the control of the support position and the number of supports by the setting position of the support plate, when the drill bit is retracted, the support plate loses its supporting effect, and when the drill bit moves forward, the support effect of the support plate is obvious, and finally, a connecting block is set to cooperate with the support block, so that the deep hole drill bit is more stable when connected, thereby effectively improving the stability of the deep hole drill bit when working, and effectively improving the processing accuracy of the deep hole drilling equipment.

Description

Technical Field

[0001] The invention relates to the technical field of drilling machines, in particular to a self-centering deep hole drilling device. Background Art

[0002] Deep hole drilling machines, unlike traditional hole processing methods, mainly rely on specific drilling technologies (such as gun drilling, BTA drilling, ejector drilling, etc.). They are specialized machines used for drilling deep holes with an aspect ratio greater than 10 and precision shallow holes. They represent advanced and efficient hole processing technology, with high precision, high efficiency and high consistency.

[0003] In modern machining, deep-hole drilling systems suffer from poor system rigidity. Due to the limited hole size, the aspect ratio of the hole is relatively large, and the drill rod is thin and long, resulting in poor rigidity, prone to vibration, and prone to drilling deviation. Therefore, support and guidance are extremely important. This is particularly prominent in gun drilling machines. During machining, the workpiece must be fixed to the jaws, and then the jaws are rotated to rotate the rotary head, and then the drill bit is pushed forward. However, due to the large hole depth, the drill bit is designed with support and guidance structures to reduce drill vibration.

[0004] However, in actual use, the drill bit is too long, which causes the drill bit to jump easily, thereby affecting the processing accuracy. This not only reduces the working efficiency of the deep hole drill, but also reduces the processing quality of the deep hole drill. In the document CN111590118A, a centering deep hole drill bit is mentioned. This drill bit can better remove chips, thereby reducing the risk of drill bit breakage, and has a certain supporting and guiding effect, thereby reducing the jitter of the deep hole drill, but the reduction in jitter is not outstanding, which has limited effect on the increase in processing accuracy. Summary of the Invention

[0005] The present invention aims to solve the deficiencies in the prior art and provides a self-centering deep hole drilling device.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions

[0007] The present invention provides a self-centering deep hole drilling equipment, including a base and a clamping device, the left side of the upper end face of the base is fixedly connected with the clamping device, the middle side of the upper end face of the base is provided with a guide rail, the guide rail is slidably matched with a plurality of support plates, the support plate is matched with a deep hole drill bit, the right side of the upper end face of the base is fixedly connected with a support frame, the support frame is provided with a first groove, the first groove is slidably matched with the support plate, the support frame is provided with a first through hole, a first limit block is slidably matched in the first through hole, the first limit block is interference matched with the deep hole drill bit, a limit device matched with the first limit block is provided at the first groove, the limit device is fixedly connected to the support frame, one end of the deep hole drill bit is provided with a connecting block, and the connecting block is fixedly connected to the rotating device.

[0008] Furthermore, the clamping device includes a fixing device and a clamping block, and the fixing device is provided with a second through hole, and the second through hole is slidably matched with the deep hole drill bit; by setting the fixing device and the clamping block, the clamping device is made more stable during clamping work, and by setting the second through hole, the present invention can realize through hole processing.

[0009] Furthermore, the base is provided with a third through hole, and the guide rails are located on both sides of the third through hole; by providing the third through hole, the debris generated by the drill bit processing of the present invention is collected through the third through hole, thereby facilitating the improvement of the deep hole processing efficiency of the present invention.

[0010] Furthermore, the guide rail includes a guide bar and a limit bar, the upper end face of the guide bar is fixedly connected to the limit bar, and the outer diameter of the limit bar is larger than the outer diameter of the guide bar; by setting the guide bar and the limit bar, when the support plate is matched with the guide rail, the support plate is limited on the conductor bar, and the cross-section of the preferably limit bar is circular, so that the support plate can move along the guide rail more conveniently and quickly.

[0011] Furthermore, the support plate is provided with a fourth through hole, and the fourth through hole cooperates with the deep hole drill bit; by providing the fourth through hole, the effect of multiple support plates supporting the deep hole drill bit is achieved, thereby making the deep hole drill bit vibrate less during rotation, and then making the deep hole drill bit processing accuracy higher, thereby effectively improving the processing efficiency of the deep hole drill bit.

[0012] Furthermore, a fourth groove is provided on one side of the support plate, a sliding block is slidably fitted in the fourth groove, and the sliding block is fixedly connected to the other side of the support plate; by providing the fourth groove and the sliding block, when multiple support plates overlap, two adjacent support plates limit each other, thereby allowing the present invention to select the number and frequency of use of support plates in a variety of ways according to actual conditions, thereby effectively controlling the processing accuracy of the deep hole drill bit.

[0013] Furthermore, a second groove is provided at the fourth through hole, and the second groove is slidably engaged with the first limit block; by setting the second groove, the preferred second groove is similar to the first limit block, and both gradually shrink from the outside to the inside, so that when the support plate is fixed, the first limit block gradually cooperates with the support plate through the advancement of the deep hole drill bit, and then gradually realizes the effect of multiple support structures supporting the deep hole drill bit, that is, effectively improving the stability of deep hole drill bits of different lengths.

[0014] Furthermore, a third groove and a second limit block are respectively provided at both ends of the first limit block, and a second limit block is slidably fitted in the third groove. There are multiple first limit blocks, and the outer diameters of the multiple first limit blocks gradually decrease. A fifth through hole that is interference fit with the outer wall of the deep hole drill bit is provided at the center axis of the first limit block; by providing the third groove and the second limit block, the multiple first limit blocks can be superimposed and folded, and then the first limit block can be completely folded into the first through hole of the support frame, and then by providing the third groove, the first limit block and the deep hole drill bit can be matched.

[0015] Furthermore, a cavity is provided between the connecting block and the deep hole drill bit, and a support block is fitted in the cavity; by providing the cavity and the support block, when the connecting block is connected to the power device, the connection between the connecting block and the power device can be made more stable through the cooperation between the cavity and the support block, thereby effectively reducing the vibration of the deep hole drill bit due to connection problems, and then effectively improving the processing accuracy of the deep hole drill bit.

[0016] Furthermore, the inner wall of the cavity is provided with an internal thread, the support block is provided with an external thread meshing with the internal thread, the support block is provided with a sixth through hole slidingly engaged with the outer wall of the deep hole drill bit, and the end face of the support block away from the cavity is provided with a handle; by providing the internal thread and the external thread, the cooperation between the support block and the cavity is made simpler and faster, and the handle further improves the convenience.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides multiple support plates so that the deep hole drill bit is supported by multiple supports, thereby reducing the vibration of the deep hole drill bit during operation, and then provides multiple first limit blocks to cooperate with the support plates, so that the support position and the number of supports can be controlled by the setting position of the support plates. When the drill bit is retracted, the support plate loses its supporting effect, and when the drill bit moves forward, the support effect of the support plate is obvious. Finally, a connecting block is provided to cooperate with the support block, so that the deep hole drill bit is more stable when connected, thereby effectively improving the stability of the deep hole drill bit during operation and effectively improving the processing accuracy of the deep hole drilling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0022] Figure 3 It is a front cross-sectional schematic diagram of the overall structure of the present invention;

[0023] Figure 4 It is a schematic cross-sectional view of the support portion of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the first limiting block of the present invention;

[0025] Figure 6 It is a schematic cross-sectional view of the first limiting block structure of the present invention;

[0026] The numbers in the figure represent: 1. base; 2. clamping device; 3. guide rail; 4. support plate; 5. deep hole drill; 6. support frame; 7. first groove; 8. first through hole; 9. first limit block; 10. connecting block; 11. fixing device; 12. clamping block; 13. second through hole; 14. third through hole; 15. guide bar; 16. limit bar; 17. fourth through hole; 18. fourth groove; 19. sliding block; 20. second groove; 21. third groove; 22. second limit block; 23. fifth through hole; 24. cavity; 25. support block; 26. external thread; 27. sixth through hole; 28. handle; 29. ​​limit device; 30. internal thread. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0029] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limiting the present invention.

[0030] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0031] The present invention provides a self-centering deep hole drilling device, referring to Figure 1-6 , including a base 1 and a clamping device 2, preferably the base 1 and the clamping device 2 are both metal parts, wherein the clamping device 2 is a four-jaw chuck, and the clamping device 2 is clamped with the motor, so that the clamping device 2 can rotate, and the punching position of the present invention is adjustable, the left side of the upper end surface of the base 1 is fixedly connected with the clamping device 2, and the middle side of the upper end surface of the base 1 is provided with a guide rail 3, preferably the guide rail 3 is made of stainless steel, and the guide rail 3 has small elastic deformation, and the guide rail 3 is slidably matched with a number of support plates 4, preferably the support plate 4 is a shock-resistant material, and the support plate 4 has small elastic deformation, and the support plate 4 is equipped with a deep hole drill bit 5, and the right side of the upper end surface of the base 1 is fixedly connected with a support frame 6, preferably the support frame 6 is the same material as the base 1, and the support frame 6 is provided with a first groove 7, and the first groove 7 slides with the support plate 4 Dynamic fit, the support frame 6 is provided with a first through hole 8, and a first limit block 9 is slidably fitted in the first through hole 8. The outer wall of the preferred first limit block 9 is provided with shock-absorbing rubber, so that the first limit block 9 vibrates less, and thus the deep hole drill bit 5 vibrates less. The first limit block 9 is interference fit with the deep hole drill bit 5, and a limit device 29 that cooperates with the first limit block 9 is provided at the first groove 7. The preferred limit device 29 is realized by a plurality of polygonal prisms, so that the support plate 4 reduces vibration, that is, the deep hole drill bit 5 reduces vibration. The limit device 29 is fixedly connected to the support frame 6, and a connecting block 10 is provided at one end of the deep hole drill bit 5. The outer wall of the preferred connecting block 10 is provided with anti-slip grooves, so that the connecting block 10 reduces rotational vibration, and the connecting block 10 is fixedly connected to the rotating device.

[0032] Among them, the clamping device 2 includes a fixing device 11 and a clamping block 12. The fixing device 11 is provided with a second through hole 13, and the second through hole 13 is slidably matched with the deep hole drill bit 5. By setting the fixing device 11 and the clamping block 12, the clamping device 2 is made more stable during clamping work, and by setting the second through hole 13, the present invention can realize through hole processing.

[0033] Among them, the base 1 is provided with a third through hole 14, and the guide rail 3 is located on both sides of the third through hole 14; by setting the third through hole 14, the debris generated by the drill bit processing of the present invention is collected through the third through hole 14, thereby facilitating the improvement of the deep hole processing efficiency of the present invention.

[0034] Among them, the guide rail 3 includes a guide bar 15 and a limit bar 16. The upper end face of the guide bar 15 is fixedly connected to the limit bar 16, and the outer diameter of the limit bar 16 is larger than the outer diameter of the guide bar 15; by setting the guide bar 15 and the limit bar 16, when the support plate 4 cooperates with the guide rail 3, the support plate 4 is limited on the conductor bar. The cross-section of the preferred limit bar 16 is circular, so that the support plate 4 can move along the guide rail 3 more conveniently and quickly.

[0035] Among them, the support plate 4 is provided with a fourth through hole 17, and the fourth through hole 17 cooperates with the deep hole drill bit 5; by setting the fourth through hole 17, the effect of multiple support plates 4 supporting the deep hole drill bit 5 is achieved, thereby making the deep hole drill bit 5 vibrate less during rotation, and then making the deep hole drill bit 5 have higher processing accuracy, thereby effectively improving the processing efficiency of the deep hole drill bit.

[0036] Among them, a fourth groove 18 is provided on one side of the support plate 4, and a sliding block 19 is slidably fitted in the fourth groove 18, and the sliding block 19 is fixedly connected to the other side of the support plate 4; by setting the fourth groove 18 and the sliding block 19, when multiple support plates 4 overlap, two adjacent support plates 4 limit each other, so that the present invention can select the number and frequency of use of the support plates 4 in multiple ways according to actual conditions, and then effectively control the processing accuracy of the deep hole drill bit 5.

[0037] Among them, a second groove 20 is provided at the fourth through hole 17, and the second groove 20 is slidably matched with the first limit block 9; by setting the second groove 20, the preferred second groove 20 is similar to the first limit block 9, and both are gradually reduced from the outside to the inside, so that when the support plate 4 is fixed, the first limit block 9 gradually cooperates with the support plate 4 through the advancement of the deep hole drill bit 5, and then gradually realizes the effect of multiple support structures supporting the deep hole drill bit, that is, effectively improves the stability of deep hole drill bits 5 of different lengths.

[0038] Among them, a third groove 21 and a second limit block 22 are respectively provided at both ends of the first limit block 9, and the second limit block 22 is slidably fitted in the third groove 21. There are multiple first limit blocks 9, and the outer diameters of multiple first limit blocks 9 gradually decrease. A fifth through hole 23 with an interference fit with the outer wall of the deep hole drill bit 5 is provided at the center axis of the first limit block 9; by setting the third groove 21 and the second limit block 22, multiple first limit blocks 9 can be stacked and folded, and then the first limit block 9 can be completely retracted into the first through hole 8 of the support frame 6, and then by setting the third groove 21, the first limit block 9 and the deep hole drill bit 5 are matched.

[0039] Among them, a cavity 24 is provided between the connecting block 10 and the deep hole drill bit 5, and a support block 25 is fitted in the cavity 24; by providing the cavity 24 and the support block 25, when the connecting block 10 is connected to the power device, the connection between the connecting block 10 and the power device can be made more stable through the cooperation between the cavity 24 and the support block 25, thereby effectively reducing the vibration of the deep hole drill bit 5 due to connection problems, and then effectively improving the processing accuracy of the deep hole drill bit 5.

[0040] Among them, the inner wall of the cavity 24 is provided with an internal thread 30, the support block 25 is provided with an external thread 26 that meshes with the internal thread 30, the support block 25 is provided with a sixth through hole 27 that slides with the outer wall of the deep hole drill bit 5, and the end face of the support block 25 away from the cavity 24 is provided with a handle 28; by providing the internal thread 30 and the external thread 26, the support block 25 and the cavity 24 are more simple and quick to cooperate, and the handle 28 further improves the convenience

[0041] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A self-centering deep hole drilling device, comprising a base (1) and a clamping device (2), characterized in that: The left side of the upper end face of the base (1) is fixedly connected with a clamping device (2), the middle side of the upper end face of the base (1) is provided with a guide rail (3), the guide rail (3) is slidably matched with a plurality of support plates (4), the support plates (4) are matched with a deep hole drill (5), the right side of the upper end face of the base (1) is fixedly connected with a support frame (6), the support frame (6) is provided with a first groove (7), the first groove (7) is slidably matched with the support plate (4), the support frame (6) is provided with a first through hole (8), a first limit block (9) is slidably matched in the first through hole (8), the first limit block (9) is interference-fitted with the deep hole drill (5), a limit device (29) matched with the first limit block (9) is provided at the first groove (7), the limit device (29) is fixedly connected to the support frame (6), one end of the deep hole drill (5) is provided with a connecting block (10), the connecting block (10) is fixedly connected to the rotating device; The support plate (4) is provided with a fourth through hole (17), the fourth through hole (17) cooperates with the deep hole drill bit (5), and a second groove (20) is provided at the fourth through hole (17), the second groove (20) is slidably cooperates with the first limit block (9), and the second groove (20) is similar to the first limit block (9), and both gradually shrink from the outside to the inside, so that when the support plate (4) is fixed, the first limit block (9) gradually cooperates with the support plate (4) through the advancement of the deep hole drill bit (5), and then gradually achieves the effect of multiple support structures supporting the deep hole drill bit; A third groove (21) and a second groove (22) are respectively provided at both ends of the first limit block (9), the second limit block (22) is slidably fitted in the third groove (21), a plurality of first limit blocks (9) are provided, and the outer diameters of the plurality of first limit blocks (9) are gradually reduced, and a fifth through hole (23) is provided at the central axis of the first limit block (9) for interference fit with the outer wall of the deep hole drill bit (5).

2. The self-centering deep hole drilling equipment according to claim 1, characterized in that: The clamping device (2) comprises a fixing device (11) and a clamping block (12); the fixing device (11) is provided with a second through hole (13); the second through hole (13) is in sliding engagement with the deep hole drill bit (5).

3. The self-centering deep hole drilling equipment according to claim 1, characterized in that: The base (1) is provided with a third through hole (14), and the guide rails (3) are located on both sides of the third through hole (14).

4. The self-centering deep hole drilling equipment according to claim 1, characterized in that: The guide rail (3) comprises a guide bar (15) and a limit bar (16); the upper end surface of the guide bar (15) is fixedly connected to the limit bar (16); and the outer diameter of the limit bar (16) is larger than the outer diameter of the guide bar (15).

5. The self-centering deep hole drilling equipment according to claim 1, characterized in that: A fourth groove (18) is provided on one side of the support plate (4), a sliding block (19) is slidably fitted in the fourth groove (18), and the sliding block (19) is fixedly connected to the other side of the support plate (4).

6. The self-centering deep hole drilling equipment according to claim 1, characterized in that: A cavity (24) is provided between the connecting block (10) and the deep hole drill bit (5), and a supporting block (25) is fitted in the cavity (24).

7. The self-centering deep hole drilling equipment according to claim 6, characterized in that: The inner wall of the cavity (24) is provided with an internal thread (30), the support block (25) is provided with an external thread (26) meshing with the internal thread (30), the support block (25) is provided with a sixth through hole (27) that is slidably engaged with the outer wall of the deep hole drill bit (5), and the end surface of the support block (25) away from the cavity (24) is provided with a handle (28).

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