A deep hole machining device for long shafts

The deep hole machining device driven by hydraulic rods and servo motors, combined with detachable connection components and fixing components, solves the problems of drill rod swaying and inconvenient replacement in long-shaft deep hole machining, and realizes a highly efficient and stable drilling process.

CN224372876UActive Publication Date: 2026-06-19XING TAI ZHA GUN YE JIN LU LIAO YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XING TAI ZHA GUN YE JIN LU LIAO YOU XIAN GONG SI
Filing Date
2025-07-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When existing long-shaft deep hole machining equipment uses a handheld drilling machine for drilling, the drill rod is prone to shaking during the drilling process, which leads to a decrease in machining accuracy and makes it inconvenient to replace the drill rod, affecting applicability and efficiency.

Method used

A deep hole machining device is adopted, which includes a first hydraulic rod, a servo motor, a connecting component, and a fixing component. The drill rod is driven by the hydraulic rod and the servo motor. Combined with the detachable connecting component and the fixing component, the drill rod can be quickly replaced and the long shaft can be stably fixed, thereby improving machining accuracy and efficiency.

Benefits of technology

It enables quick replacement of drill rods according to the required length of the long shaft, avoiding vibration or sway of the long shaft during drilling, improving the applicability and stability of deep hole machining, and increasing drilling efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224372876U_ABST
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Abstract

The utility model discloses a kind of deep hole processing device for long shaft, it is related to machining equipment technical field, and it includes: processing table;First hydraulic rod, it is set through on the side wall of one end with processing table;Movable slot, it is set in the top one end of processing table;Sliding rod, it is set symmetrically in movable slot interior;Moving plate, it is set on the circumferential outer wall of two sliding rods, and the bottom one end side wall of moving plate is fixedly connected with the telescopic end of first hydraulic rod;Servo motor, it is set through on the top one end side wall of moving plate;Connecting assembly, it is set on the output end of servo motor.The utility model structure is reasonable and reliable, the simple operation, not only can improve the applicability and drilling efficiency of the deep hole processing device for long shaft, simultaneously, it can also realize the fixed work to long shaft, avoid vibrating or yawing phenomenon in drilling process because long shaft is suspended too long or clamped unstable, to improve the stability of the deep hole processing device for long shaft.
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Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and more specifically, to a deep hole machining device for long shafts. Background Technology

[0002] Large forgings of shafts (generally exceeding one meter in length) are typically used for drive shafts and are key components in metallurgical machinery, possessing excellent load-bearing and transmission performance. To meet subsequent usage requirements such as coolant channels, lubricating oil delivery, or sensor cable laying, deep holes are often machined along the axial direction. Deep holes can endow workpieces with multiple functions, but also place higher demands on their geometric accuracy, especially coaxiality and straightness, which directly affect assembly matching accuracy and overall machine operation stability. Therefore, during deep hole machining, positioning accuracy and machining parameters must be strictly controlled to ensure that the final quality meets standards.

[0003] However, existing deep hole machining equipment for long shafts mostly uses manual handheld drilling machines. But when using a manual handheld drilling machine, it's impossible to guarantee that the drill rod will always feed along the workpiece's axis. The drill rod is prone to wobbling during drilling, causing it to deviate from the workpiece's axis, affecting machining accuracy. Furthermore, it's inconvenient to quickly replace the drill rod according to the length requirements of the long shaft or after prolonged use and wear, thus reducing the applicability and drilling efficiency of deep hole machining for long shafts.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a deep hole machining device for long shafts to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A deep hole machining device for long shafts includes: a machining table; a first hydraulic rod, which is disposed through one side wall of the machining table; a movable groove, which is formed at the top end of the machining table; sliding rods, which are symmetrically disposed inside the movable groove; a movable plate, which is sleeved on the outer circumference of the two sliding rods, and the bottom side wall of the movable plate is fixedly connected to the telescopic end of the first hydraulic rod; a servo motor, which is disposed through one side wall of the top end of the movable plate; a connecting assembly, which is sleeved on the output end of the servo motor; a drill rod, which is connected to the connecting assembly and is located away from the servo motor; a fixing assembly, which is symmetrically disposed at the other top end of the machining table, and is used to fix the long shaft when machining deep holes; and a control panel, which is disposed on one side wall of the machining table.

[0008] Furthermore, to enable quick drill rod replacement based on the length requirements of the long shaft or wear after prolonged use, thereby improving the applicability and drilling efficiency of the deep hole machining device for long shafts, the connecting assembly includes a fixing member disposed between the drill rod and the output end of the servo motor. A driving component is located within the center of the fixing member. The fixing member includes a connecting cylinder disposed between one end of the drill rod and the output end of the servo motor. One end of the connecting cylinder has a through-hole, and both the top and bottom of the connecting cylinder have grooves. The driving component includes a first slider disposed within one of the grooves, and the other… The first slider has a second slider inside the chute. The top of the first slider has a limiting groove. The top of the first slider and the middle of the limiting groove has a through hole. The top of the second slider has a threaded hole. The side walls at both ends of the first and second sliders have square limiting grooves. The side walls at both ends of the first and second sliders away from the square limiting grooves have limiting grooves. The top and bottom side walls of the chute are symmetrically provided with limiting sliders that cooperate with the limiting grooves. A bolt that cooperates with the threaded hole is installed between the first slider and the second slider. The end of the drill rod has a groove that cooperates with the chuck.

[0009] Furthermore, in order to achieve the fixation of long shafts of different diameters under the action of the fixing component, and to avoid vibration or swaying of the long shafts due to excessive suspension or unstable clamping during the drilling process, thereby improving the stability of the deep hole machining device for long shafts, the fixing component includes a fixing plate set at the other end of the top of the machining table. A stabilizing plate is set on one side wall of the fixing plate, and a sleeve is set on the top of the stabilizing plate. A slot is opened on one side wall of the top of the sleeve, and a fixing clamp is fixedly set inside the slot. Moving grooves are opened on the bottom and both side walls of the sleeve, and moving clamps are fitted inside the moving grooves. A pushing groove is opened on one side wall of each of the two moving clamps. A Y-shaped pushing frame is fitted inside the pushing groove. A second hydraulic rod is connected to the bottom of the Y-shaped pushing frame, and the bottom end of the second hydraulic rod is fixedly connected to the top of the fixing plate.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model has a reasonable and reliable structure and is simple to operate. Through the coordinated action of the first hydraulic rod, movable groove, sliding rod, moving plate, servo motor, connecting component, drill rod, fixing component, and control panel, it can not only quickly replace the drill rod according to the length requirements of the long shaft or the wear of the drill rod after long-term use, thereby improving the applicability and drilling efficiency of the deep hole machining device for long shafts, but also realize the fixing of the long shaft, avoiding vibration or swaying of the long shaft due to excessive suspension or unstable clamping during the drilling process, thus improving the stability of the deep hole machining device for long shafts.

[0012] 2. By setting up a connecting component, the drill rod can be quickly replaced according to the length requirements of the long shaft or the wear of the drill rod after long-term use, thereby improving the applicability and drilling efficiency of the deep hole machining device for long shafts.

[0013] 3. By setting a fixed component, the long shaft can be fixed, avoiding vibration or swaying of the long shaft due to excessive suspension or unstable clamping during drilling, thereby improving the stability of the deep hole machining device for long shafts. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of a deep hole machining apparatus for long shafts according to an embodiment of the present utility model;

[0016] Figure 2 This is another perspective view of a deep hole machining device for long shafts according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a connecting component in a deep hole machining device for long shafts according to an embodiment of the present utility model;

[0018] Figure 4 This is a three-dimensional assembly drawing of a connecting component in a deep hole machining device for long shafts according to an embodiment of the present utility model;

[0019] Figure 5 This is a cross-sectional view of a connecting component in a deep hole machining apparatus for a long shaft according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of a fixing component in a deep hole machining device for long shafts according to an embodiment of the present utility model;

[0021] Figure 7 This is a three-dimensional assembly drawing of a fixing component in a deep hole machining device for long shafts according to an embodiment of the present utility model;

[0022] Figure 8 This is a schematic diagram of the structure of a sleeve in a deep hole machining device for long shafts according to an embodiment of the present utility model;

[0023] Figure 9This is a cross-sectional view of a drill rod in a deep hole machining apparatus for long shafts according to an embodiment of the present invention.

[0024] In the picture:

[0025] 1. Machining table; 2. First hydraulic rod; 3. Movable groove; 4. Sliding rod; 5. Moving plate; 6. Servo motor; 7. Connecting assembly; 701. Fixing component; 7011. Connecting cylinder; 7012. Mounting hole; 7013. Slide groove; 702. Driving component; 7021. First slider; 7022. Second slider; 7023. Limiting groove; 7024. Through hole; 7025. Threaded hole; 7026. Square limiting groove; 702 7. Limiting slide; 7028. Limiting slider; 7029. Bolt; 70210. Locking strip; 70211. Locking groove; 8. Drill rod; 9. Fixing assembly; 901. Fixing plate; 902. Stabilizing plate; 903. Sleeve; 904. Locking groove; 905. Fixing clamp; 906. Moving slide; 907. Moving clamp; 908. Pushing groove; 909. Y-shaped push frame; 9010. Second hydraulic rod; 10. Control panel. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a deep hole machining apparatus for long shafts is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-9 As shown, the deep hole machining device for long shafts according to an embodiment of the present invention includes: a machining table 1; a first hydraulic rod 2, which is disposed through one side wall of the machining table 1; a movable groove 3, which is opened at the top end of the machining table 1; sliding rods 4, which are symmetrically disposed inside the movable groove 3; a moving plate 5, which is sleeved on the outer circumferential wall of the two sliding rods 4, and the bottom side wall of the moving plate 5 is fixedly connected to the telescopic end of the first hydraulic rod 2; a servo motor 6, which is disposed through one side wall of the top end of the moving plate 5; a connecting component 7, which is sleeved on the output end of the servo motor 6; a drill rod 8, which is connected to the connecting component 7 and is away from the servo motor 6; a fixing component 9, which is symmetrically disposed at the other top end of the machining table 1, and is used to fix the long shaft when machining deep holes; and a control panel 10, which is disposed on one side wall of the machining table 1.

[0029] Furthermore, the working principles and structures of the first hydraulic rod 2, servo motor 6, drill rod 8, and second hydraulic rod 9010 are all existing technologies, and will not be elaborated upon here.

[0030] In practical applications, the control panel 10 is equipped with a human-machine interface and a PLC programmable logic controller. The human-machine interface is the interaction interface between the operator and the automation system. Its main functions are to display the real-time operating status and input control commands. The PLC is used to execute specific control tasks, such as switching, controlling the extension and retraction speed, extension and retraction position or start and stop of the first hydraulic rod 2 and the second hydraulic rod 9010, as well as the rotation speed or start and stop of the servo motor 6, or sensor signal acquisition and processing, etc.

[0031] In one embodiment, the connecting component 7 includes a fixing member 701 disposed between the drill rod 8 and the output end of the servo motor 6. In a specific application, both the output end of the servo motor 6 and the end of the drill rod 8 are configured as regular hexagonal structures. A driving member 702 is disposed in the inner center of the fixing member 701. The fixing member 701 includes a connecting cylinder 7011 disposed between one end of the drill rod 8 and the output end of the servo motor 6. One end of the connecting cylinder 7011 has a through mounting hole 7012. In a specific application, the mounting hole 7012 is configured as a regular hexagonal structure and cooperates with the output end of the servo motor 6 and the end of the drill rod 8. Slide grooves 7013 are provided at the top and bottom of the connecting cylinder 7011. The driving member 702 includes a first slider 7021 disposed inside one slide groove 7013 and a second slider 7022 disposed inside the other slide groove 7013. A limiting groove 7023 is provided at the top of the first slider 7021. A through hole 7024 is provided in the middle of the limiting groove 7023, and a threaded hole 7025 is provided at the top of the second slider 7022. Square limiting grooves 7026 are provided on both end sidewalls of the first slider 7021 and the second slider 7022. Limiting grooves 7027 are provided at the ends of both end sidewalls of the first slider 7021 and the second slider 7022 away from the square limiting grooves 7026. The inner top and inner bottom end sidewalls of the groove 7013 are symmetrically provided with limiting grooves 7027. The corresponding limiting slider 7028, the first slider 7021 and the second slider 7022 are provided with a bolt 7029 that mates with the threaded hole 7025, and the end of the drill rod 8 is provided with a groove 70211 that mates with the retaining strip 70210. Under the action of the connecting component 7, the drill rod 8 can be quickly replaced according to the length requirements of the long shaft or the wear of the drill rod 8 after long-term use, thereby improving the applicability and drilling efficiency of the deep hole machining device for long shafts.

[0032] The specific working principle of the connecting component 7 is as follows: When it is necessary to install the drill rod 8 and the output end of the servo motor 6, the output end of the servo motor 6 is inserted into the mounting hole 7012 at one end of the connecting cylinder 7011, and then one end of the drill rod 8 is inserted into the mounting hole 7012 at the other end of the connecting cylinder 7011. By turning the bolt 7029 clockwise in the threaded hole 7025, the second slider 7022 and the first slider 7021 are driven to move inward through the cooperation of the limiting slide groove 7027 and the limiting slider 7028, so that the retaining strip 70210 enters the retaining groove 70211, and the surface of the square limiting groove 7026 clamps the output end of the servo motor 6 and the end of the drill rod 8, thus realizing the connection between the drill rod 8 and the servo motor. The connection between 6 is as follows: Conversely, if it is necessary to disassemble the drill rod 8 from the servo motor 6, the bolt 7029 is turned counterclockwise in the threaded hole 7025, causing the second slider 7022 and the first slider 7021 to move outward through the cooperation of the limiting slide groove 7027 and the limiting slider 7028. This causes the retaining strip 70210 to leave the retaining groove 70211, and the surface of the square limiting groove 7026 to move away from the output end of the servo motor 6 and the end of the drill rod 8. This allows for the disassembly of the drill rod 8 from the servo motor 6, enabling quick replacement of the drill rod 8 according to the length requirements of the long shaft or after long-term use due to wear. This improves the applicability and drilling efficiency of the deep hole machining device for long shafts.

[0033] In one embodiment, the fixing component 9 includes a fixing plate 901 disposed at the other end of the top of the processing table 1. A stabilizing plate 902 is disposed on one side wall of the fixing plate 901, and a sleeve 903 is disposed on the top of the stabilizing plate 902. In specific applications, the center point of the drill rod 8 and the center point of the sleeve 903 are always kept on the same horizontal line. A slot 904 is opened on one side wall of the top of the sleeve 903, and a fixing clamp 905 is fixedly disposed inside the slot 904. Movable grooves 906 are opened on the bottom and both side walls of the sleeve 903. Both are equipped with movable clamps 907, and each movable clamp 907 has a push groove 908 on one side wall. A Y-shaped push frame 909 is installed inside the push groove 908. The bottom of the Y-shaped push frame 909 is connected to a second hydraulic rod 9010, and the bottom end of the second hydraulic rod 9010 is fixedly connected to the top end of the fixed plate 901. This allows the fixed assembly 9 to fix long shafts of different diameters, preventing vibration or swaying of the long shafts due to excessive suspension or unstable clamping during drilling, thereby improving the stability of the deep hole machining device for long shafts.

[0034] The specific working principle of the fixing component 9 is as follows: When it is necessary to fix the long shaft, the extension end of the second hydraulic rod 9010 is activated. The extension end of the second hydraulic rod 9010 drives the Y-shaped push frame 909 to move upward. Under the squeezing action of the Y-shaped push frame 909, the two moving clamps 907 are driven to move inward, thereby driving the two moving clamps 907 to move inward in the moving slide 906. When the arc-shaped surface of the moving clamp 907 contacts the outer wall of the long shaft, the long shaft is squeezed towards the fixing clamp 905, thereby clamping and fixing the long shaft, thus improving the stability of the deep hole machining device for long shafts.

[0035] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0036] In practical applications, firstly, the long shaft to be processed is placed in the fixing component 9, and the two sets of fixing components 9 are activated through the control panel 10 to fix and clamp both ends of the long shaft. After the long shaft is fixed, the first hydraulic rod 2 is activated through the control panel 10. The first hydraulic rod 2 drives the moving plate 5 to move towards the fixed long shaft through the telescopic end under the action of the movable groove 3 and the sliding rod 4. When the drill rod 8 contacts one end of the long shaft, the servo motor 6 is activated through the control panel 10 to drive the drill rod 8 to perform deep hole processing on the long shaft through the connecting component 7. If it is necessary to replace or install the drill rod 8, it can be quickly replaced or installed through the connecting component 7.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 machining device for long shafts, characterized by, include: Processing table (1); The first hydraulic rod (2) is disposed through one end of the side wall of the processing table (1); The movable groove (3) is located at one end of the top of the processing table (1); The sliding rod (4) is symmetrically arranged inside the movable groove (3); The movable plate (5) is sleeved on the outer circumference of the two sliding rods (4), and the bottom side wall of the movable plate (5) is fixedly connected to the telescopic end of the first hydraulic rod (2). A servo motor (6) is installed through one end of the top side wall of the movable plate (5); The connecting component (7) is sleeved on the output end of the servo motor (6); The drill rod (8) is connected to the connecting assembly (7) at one end away from the servo motor (6); A fixing component (9) is symmetrically arranged at the other end of the top of the machining table (1). The fixing component (9) is used to fix the long shaft when machining deep holes. The control panel (10) is located on one side wall of the processing table (1).

2. The apparatus for long shaft deep hole machining according to claim 1, characterized in that, The connecting assembly (7) includes a fixing member (701) disposed between the drill rod (8) and the output end of the servo motor (6), and a driving member (702) is disposed in the inner center of the fixing member (701).

3. The deep hole machining apparatus for long shafts according to claim 2, characterized in that, The fixing component (701) includes a connecting cylinder (7011) disposed between one end of the drill rod (8) and the output end of the servo motor (6). One end of the connecting cylinder (7011) is provided with a mounting hole (7012), and the top and bottom of the connecting cylinder (7011) are provided with sliding grooves (7013).

4. The deep hole machining apparatus for long shafts according to claim 3, characterized in that, The drive unit (702) includes a first slider (7021) disposed inside one of the slides (7013) and a second slider (7022) disposed inside the other slide (7013).

5. The deep hole machining apparatus for long shafts according to claim 4, characterized in that, The first slider (7021) has a limiting groove (7023) at its top end, and a through hole (7024) is provided at the top end of the first slider (7021) and in the middle of the limiting groove (7023). The second slider (7022) has a threaded hole (7025) at its top end.

6. The deep hole machining apparatus for long shafts according to claim 5, characterized in that, The first slider (7021) and the second slider (7022) have square limiting grooves (7026) on both side walls, and the first slider (7021) and the second slider (7022) have limiting grooves (7027) on one side wall away from the square limiting grooves (7026). The inner top and inner bottom sidewalls of the slide groove (7013) are symmetrically provided with limiting sliders (7028) that cooperate with the limiting slide groove (7027). A bolt (7029) that cooperates with the threaded hole (7025) is provided through the first slider (7021) and the second slider (7022). A retaining strip (70210) is symmetrically provided on both sides of one end of the square limiting groove (7026). The end of the drill rod (8) is provided with a retaining groove (70211) that cooperates with the retaining strip (70210).

7. The deep hole machining apparatus for long shafts according to claim 1, characterized in that, The fixing component (9) includes a fixing plate (901) disposed at the other end of the top of the processing table (1). A stabilizing plate (902) is provided on one side wall of the fixing plate (901). A sleeve plate (903) is provided on the top of the stabilizing plate (902). A slot (904) is provided on one side wall of the top of the sleeve plate (903). A fixing clamp (905) is fixedly disposed inside the slot (904).

8. The deep hole machining apparatus for long shafts according to claim 7, characterized in that, The bottom and both side walls of the sleeve (903) are provided with movable grooves (906), and movable clamps (907) are provided inside the movable grooves (906). A push groove (908) is provided on one side wall of each of the two movable clamps (907). The push groove (908) is internally fitted with a Y-shaped push frame (909), the bottom of which is connected to a second hydraulic rod (9010), and the bottom end of the second hydraulic rod (9010) is fixedly connected to the top end of the fixing plate (901).