An adjustable angle tool holder for a numerical control lathe

By combining the design of a rotary axis, an angle adjustment drive, and a linear guide rail, the problem of inconvenient adjustment of traditional tool holders in complex machining tasks is solved, realizing multi-degree-of-freedom adjustment and high-precision positioning of the tool, and improving machining consistency and efficiency.

CN224346964UActive Publication Date: 2026-06-12LUOYANG RUNDE MINE MASCH FACTORY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUOYANG RUNDE MINE MASCH FACTORY
Filing Date
2025-03-31
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional tool holders are unable to meet the rapid adjustment requirements of multiple angles and directions in complex machining tasks, resulting in the accumulation of positioning errors and affecting machining consistency and efficiency.

Method used

The combination design of rotary shaft, angle adjustment drive and linear slide rail enables precise adjustment of the tool in horizontal rotation, left and right displacement and vertical lifting. Through the coordinated work of cylinder support and connecting guide shaft, the tool's multi-degree-of-freedom adjustment and positioning accuracy are ensured.

🎯Benefits of technology

It improves the adjustment flexibility and structural stability of the cutting tools, simplifies the operation process, meets the requirements of high-precision machining, reduces positioning errors, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an angle-adjustable tool support for a numerical control lathe, which comprises a main body frame, an inner support frame is arranged between inner frames of the main body frame, a rotating shaft is arranged at a middle position of the inner support frame, a middle rotating seat is sleeved on the rotating shaft, adjusting driving elements are arranged at both ends of the middle rotating seat, and the telescopic ends of the adjusting driving elements pass through arc-shaped grooves on the inner support frame. The application provides precise adjustment capability with multiple degrees of freedom, enhances structural rigidity and stability, and simplifies an operation process. Through the cooperative work of the rotating shaft, the angle adjusting driving elements and the linear sliding rails, precise adjustment of the tool in three dimensions, i.e. horizontal rotation, left-right displacement and vertical lifting, is realized. The middle rotating seat rotates around the rotating shaft to realize wide-range angle adjustment, and the adjusting driving elements can fine-tune the mounting support plate through transmission of the connecting guide shaft and the guide frame seat, so that the tool positioning precision is ensured, and high-precision machining requirements are met.
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Description

Technical Field

[0001] This application relates to the field of CNC cutting tool technology, specifically to an adjustable-angle tool holder for CNC lathes. Background Technology

[0002] In modern machining, especially in high-precision cutting, CNC machining, and automated manufacturing, the flexibility and structural stability of cutting tools directly affect machining accuracy, surface quality, and production efficiency. Traditional tool holders typically employ fixed or limited-angle adjustment designs, with adjustment methods mostly involving manual locking or simple mechanical limits. These methods are insufficient to meet the demands of complex machining tasks requiring rapid adjustments across multiple angles and directions. For example, when machining irregular curved surfaces, complex angular features, or workpieces made of different materials, operators often need to repeatedly change tools or readjust fixture positions. This not only increases non-cutting time but can also lead to accumulated positioning errors, affecting machining consistency. Summary of the Invention

[0003] The technical problem to be solved by this application is to overcome the existing defects and provide an adjustable angle tool holder for CNC lathes, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: an adjustable angle tool holder for a CNC lathe, comprising a main frame, an inner support frame disposed between the inner frames of the main frame, a rotating shaft disposed at the middle position of the inner support frame, an intermediate rotating seat sleeved on the rotating shaft, adjustment drive components disposed at both ends of the intermediate rotating seat, the telescopic ends of the adjustment drive components passing through arc-shaped grooves on the inner support frame, connecting lugs disposed on both sides of the intermediate rotating seat, the connecting lugs being connected to angle adjustment seats disposed on the rear side of the inner support frame, the telescopic ends of the adjustment drive components being connected to connecting seats, the connecting seats being connected to mounting plates disposed on the other side of the inner support frame, a lifting adjustment mounting plate disposed on one side of the mounting plate, a tool mounting plate being connected to the lifting adjustment mounting plate via a linear slide rail, and a telescopic cylinder disposed at the end of the lifting adjustment mounting plate, the telescopic end of which is connected to a support block on the rear side of the tool mounting plate.

[0005] As a preferred technical solution of this application, the angle adjustment seat includes a cylinder support, an angle adjustment drive and a transition shaft. The cylinder support is disposed on one side of the inner support frame, and the angle adjustment drive is disposed thereon. The telescopic end of the angle adjustment drive is sleeved with the transition shaft disposed on the connecting ear seat.

[0006] As a preferred technical solution of this application, the cylinder support is rotatably mounted on the inner support frame.

[0007] As a preferred technical solution of this application, the connecting seat includes a connecting guide shaft and a guide frame seat. The guide frame seat is disposed on one side of the mounting plate, and the connecting guide shaft is disposed on the guide frame seat. The connecting guide shaft is connected to the telescopic end disposed on the adjusting drive component.

[0008] As a preferred technical solution of this application, a machining tool is provided on one side of the tool mounting plate.

[0009] As a preferred technical solution of this application, the main frame is provided with a first connecting seat and a second connecting seat at its upper and lower positions, respectively.

[0010] As a preferred technical solution of this application, the inner support frame and the main frame are connected by fasteners.

[0011] As a preferred technical solution of this application, the first connecting seat is a right-angle plate and is hinged to the support plate on the rear side of the main frame.

[0012] Compared with existing technologies, this application provides precise adjustment capabilities with multiple degrees of freedom, enhances structural rigidity and stability, simplifies the operation process, and achieves precise adjustment of the tool in three dimensions—horizontal rotation, left-right displacement, and vertical lifting—through the coordinated work of the rotary axis, angle adjustment drive, and linear guide rail. The intermediate rotary seat rotates around the rotary axis to achieve a wide range of angle adjustments, while the adjustment drive, through the transmission connecting the guide shaft and the guide bracket, can fine-tune the mounting plate to ensure tool positioning accuracy and meet the requirements of high-precision machining. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this application;

[0014] Figure 2 This is the main view of this application;

[0015] Figure 3 This is the right view of this application;

[0016] Figure 4 This is a rear view of this application;

[0017] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1 Linear slide rail, 2 Support connecting seat, 3 Second connecting seat, 4 Inner support frame, 5 Main frame, 6 First connecting seat, 7 Machining tool, 8 Lifting adjustment mounting plate, 9 Tool mounting plate, 10 Mounting support plate, 11 Cylinder support, 12 Rotary shaft, 13 Adjustment drive component, 14 Arc groove, 15 Angle adjustment drive component, 16 Intermediate rotating seat, 17 Connecting guide shaft, 18 Guide bracket seat. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0020] Please see Figure 1-5 This application provides a technical solution: an adjustable angle tool holder for a CNC lathe, including a main frame 5, an inner support frame 4 between the inner frames of the main frame 5, and a rotating shaft 12 at the middle position of the inner support frame 4.

[0021] The main frame 5 serves as the foundation structure for the entire tool holder, providing stable support and ensuring that the components can work together precisely.

[0022] In order to improve the overall structure, an inner support frame 4 is specially installed in the cavity between the main frame 5. The inner support frame 4 enhances the rigidity and stability of the overall structure and effectively prevents the main frame 5 from deforming or being damaged under external forces.

[0023] In order to provide a mounting position for the intermediate rotating seat 16, a through hole is specially opened in the middle of the inner support 4 for mounting the rotating shaft 12.

[0024] The intermediate rotating seat 16 can rotate around the rotating shaft 12, thereby driving the mounting plate 10 to rotate, which is a key component for adjusting the tool angle.

[0025] An intermediate rotating seat 16 is sleeved on the rotating shaft 12. Adjustment drive components 13 are provided at both ends of the intermediate rotating seat 16. Connecting ear seats are provided on both sides of the intermediate rotating seat 16. The connecting ear seats are connected to the angle adjustment seat provided on the rear side of the inner support frame 4.

[0026] The intermediate rotary seat 16 can rotate around the rotation axis 12, so that the angle of the tool connected to it can be flexibly adjusted by controlling the angular position of the intermediate rotary seat 16.

[0027] In addition to serving as the core of the rotation, the intermediate rotating seat 16 also provides a mounting position for the adjustment drive component 13, enabling the mounting plate 10 to be adjusted in the left and right directions, ensuring smoothness and precision during the adjustment process.

[0028] In order to enable the intermediate rotating seat 16 to rotate independently, connecting lugs are provided on both sides of the intermediate rotating seat 16. The two connecting lugs are connected to the angle adjustment seat provided on the rear side of the inner support 4, so as to realize the smooth and free rotation of the intermediate rotating seat 16 and improve the efficiency of angle adjustment.

[0029] Specifically, the angle adjustment seat includes a cylinder support 11, an angle adjustment drive 15, and a transition shaft. The cylinder support 11 is located on one side of the inner support frame 4, and the angle adjustment drive 15 is mounted on it. The telescopic end of the angle adjustment drive 15 is sleeved with the transition shaft mounted on the connecting ear seat.

[0030] The cylinder support 11 is fixed to one side of the inner support 4, providing a stable mounting position for the angle adjustment drive 15 to withstand the force generated during angle adjustment.

[0031] Furthermore, the cylinder support 11 is rotatably mounted on the inner support frame 4.

[0032] The cylinder support 11 can be rotated and adjusted within a certain range as needed to adapt to different processing requirements.

[0033] The angle adjustment drive 15 is a component that enables fine adjustment of the tool angle. It drives the adapter shaft by the movement of the telescopic end, which in turn drives the intermediate rotary seat 16 to adjust the angle, ensuring accuracy and consistency in the machining process.

[0034] The adapter shaft is located on the connecting lug and is sleeved with the telescopic end of the angle adjustment drive 15. The force of the angle adjustment drive 15 is transmitted to the intermediate rotating seat 16, enabling the latter to make precise angle adjustments around the rotation axis 12.

[0035] The telescopic end of the adjusting drive component 13 passes through the arc-shaped groove 14 on the inner support frame 4. The telescopic end of the adjusting drive component 13 is connected to a connecting seat, which is connected to the mounting plate 10 located on the other side of the inner support frame 4.

[0036] The connecting seat serves as a bridge between the adjusting drive component 13 and the mounting plate 10. It is responsible for transmitting the force generated by the adjusting drive component 13 to the mounting plate 10, thereby adjusting the left and right positions of the mounting plate 10, improving the flexibility of the mounting plate 10, and thus adjusting the angle of the tool.

[0037] A lifting and adjusting mounting plate 8 is provided on one side of the mounting support plate 10. The lifting and adjusting mounting plate 8 is connected to the tool mounting plate 9 through a linear slide rail 1. A telescopic cylinder is provided at the end of the lifting and adjusting mounting plate 8, and its telescopic end is connected to the rear support block of the tool mounting plate 9.

[0038] The mounting plate 10 provides a mounting base for the lifting adjustment mounting plate 8. At this time, the mounting plate 10 transmits the angle adjustment force to the lifting adjustment mounting plate 8, thereby realizing the coordinated adjustment of the tool's angle and height.

[0039] The lifting and adjusting mounting plate 8 is connected to the tool mounting plate 9 via a linear slide rail 1, which is responsible for adjusting the height of the tool. This allows the tool to move precisely in the vertical direction, meeting the needs of different machining tasks.

[0040] The telescopic cylinder is located at the end of the lifting and adjusting mounting plate 8. Its telescopic end is connected to the bracket block on the rear side of the tool mounting plate 9. It is responsible for adjusting the position of the tool mounting plate 9, thereby providing the power required for tool height adjustment.

[0041] To ensure smooth up-and-down movement of the tool, the linear guide rail 1 provides precise guidance for the tool mounting plate 9, ensuring that its movement trajectory always remains straight and avoiding errors caused by tilting or shaking.

[0042] Secondly, the linear guide rail 1 adopts a high-precision ball or slider structure, which can effectively reduce friction, make the lifting action smoother, and extend the service life of the equipment.

[0043] The tool mounting plate 9 is the part that mounts the machining tool 7. The machining tool 7 and the tool mounting plate 9 are connected by fasteners to ensure stability during machining and easy replacement.

[0044] Furthermore, the connecting seat includes a connecting guide shaft 17 and a guide frame seat 18. The guide frame seat 18 is disposed on one side of the mounting support plate 10, and the connecting guide shaft 17 is disposed on the guide frame seat 18. The connecting guide shaft 17 is connected to the telescopic end disposed on the adjusting drive member 13.

[0045] In order to better adjust the angle of the mounting plate 10, a guide bracket seat 18 is specially provided on one side. The guide bracket seat 18 is concave, and a rotating shaft is provided between the concave parts. The rotating shaft is sleeved on the connecting guide shaft 17 to provide the mounting plate 10 with a degree of freedom. The connecting guide shaft 17 is connected to the telescopic end of the adjustment drive component 13 to transmit the push and pull force generated by the adjustment drive component 13 to the mounting plate 10.

[0046] Furthermore, a machining tool 7 is provided on one side of the tool mounting plate 9.

[0047] Furthermore, a first connecting seat 6 and a second connecting seat 3 are respectively provided at the upper and lower positions of the main frame 5.

[0048] More specifically, the first connecting seat 6 is a right-angle plate and is hinged to the rear support plate of the main frame 5.

[0049] The first connecting seat 6 and the second connecting seat 3 are respectively connected to the upper and lower positions of the main frame 5, wherein the first connecting seat 6 and the second connecting seat 3 are respectively connected to the external fixing mechanism.

[0050] More specifically, the first connecting seat 6 is a right-angle plate and is hinged to the rear support plate of the main frame 5.

[0051] The first connecting seat 6 is hinged to the rear support plate of the main frame 5, and the second connecting seat 3 is also connected to the external fixing mechanism through the support connecting seat 2 of the hinged structure.

[0052] The articulation mechanism allows the main frame 5 to be finely adjusted according to the actual situation to ensure the optimal installation position and angle, adapting to a variety of different working environments and application scenarios, thus improving the versatility and flexibility of the equipment.

[0053] Furthermore, the inner support frame 4 and the main frame 5 are connected by fasteners.

[0054] Fasteners are used to tightly connect the inner support frame 4 to the main frame 5, ensuring that the connection between the two is both strong and reliable. The use of fasteners also simplifies disassembly and reassembly, which is highly beneficial for later adjustments, repairs, and parts replacement.

[0055] In use: Securely mount the machining tool 7 onto the tool mounting plate 9, ensuring stability with appropriate fasteners while also facilitating future replacement. When adjusting the machining angle of the machining tool 7, the angle adjustment drive 15 causes the intermediate rotating seat 16 to rotate around the rotation axis 12. The intermediate mechanism, consisting of the adjustment drive 13 and the connecting seat, then rotates the mounting plate 10, thereby adjusting the angle of the machining tool 7. When adjusting the mounting plate 10 left or right, activate the adjustment drive 13, causing its telescopic end to drive the connecting guide shaft 17 and the guide bracket seat 18, thus pushing or pulling the mounting plate 10 for left or right adjustments, further improving the flexibility of tool machining. To adjust the tool height, activate the telescopic cylinder located at the end of the lifting and adjusting mounting plate 8. The telescopic end of the cylinder is connected to the support block on the rear side of the tool mounting plate 9. By controlling the movement of the telescopic cylinder, the tool mounting plate 9 can move up and down along the linear slide rail 1 to complete the height adjustment, ensuring that machining accuracy requirements are met.

[0056] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable-angle tool holder for a CNC lathe, comprising a main frame (5), an inner support frame (4) provided between the inner frames of the main frame (5), a rotating shaft (12) provided at the middle position of the inner support frame (4), and an intermediate rotating seat (16) sleeved on the rotating shaft (12), characterized in that: The intermediate rotating seat (16) is provided with adjustment drive components (13) at both ends. The telescopic end of the adjustment drive component (13) passes through the arc groove (14) on the inner support frame (4). The intermediate rotating seat (16) is provided with connecting ear seats on both sides. The connecting ear seats are connected to the angle adjustment seat provided on the rear side of the inner support frame (4). The telescopic end of the adjustment drive component (13) is connected to the connecting seat. The connecting seat is connected to the mounting support plate (10) provided on the other side of the inner support frame (4). The mounting support plate (10) is provided with a lifting adjustment mounting plate (8) on one side. The lifting adjustment mounting plate (8) is connected to the tool mounting plate (9) through the linear slide rail (1). The end of the lifting adjustment mounting plate (8) is provided with a telescopic cylinder. Its telescopic end is connected to the support block on the rear side of the tool mounting plate (9).

2. The adjustable-angle tool holder for a CNC lathe according to claim 1, characterized in that: The angle adjustment seat includes a cylinder support (11), an angle adjustment drive (15), and a transition shaft. The cylinder support (11) is located on one side of the inner support frame (4), and the angle adjustment drive (15) is provided on it. The telescopic end of the angle adjustment drive (15) is connected to the transition shaft provided on the connecting ear seat.

3. The adjustable-angle tool holder for a CNC lathe according to claim 2, characterized in that: The cylinder support (11) is rotatably mounted on the inner support frame (4).

4. The adjustable-angle tool holder for a CNC lathe according to claim 1, characterized in that: The connecting seat includes a connecting guide shaft (17) and a guide frame seat (18). The guide frame seat (18) is located on one side of the mounting plate (10). The connecting guide shaft (17) is located on the guide frame seat (18). The connecting guide shaft (17) is connected to the telescopic end of the adjusting drive (13).

5. An adjustable-angle tool holder for a CNC lathe according to claim 1, characterized in that: A machining tool (7) is provided on one side of the tool mounting plate (9).

6. The adjustable-angle tool holder for a CNC lathe according to claim 1, characterized in that: The main frame (5) is provided with a first connecting seat (6) and a second connecting seat (3) at the upper and lower positions respectively.

7. An adjustable-angle tool holder for a CNC lathe according to claim 1, characterized in that: The inner support frame (4) and the main frame (5) are connected by fasteners.

8. An adjustable-angle tool holder for a CNC lathe according to claim 6, characterized in that: The first connecting seat (6) is a right-angle plate and is hinged to the rear support plate of the main frame (5).