Angle adjusting shaft head capable of achieving double-angle adjustment

Abstract

The utility model provides an angle-adjusting shaft head with double-angle adjustment, which belongs to the technical field of attitude control mechanisms and comprises a shaft head shell and a shaft head body, the shaft head shell comprises a U-shaped support arm section and a rotary connecting section, the shaft head body is positioned between two support arms of the U-shaped support arm section and is fixedly connected with a first rotating shaft perpendicular to the axis of the shaft head body, and the first rotating shaft is fixedly connected with a second rotating shaft. The two ends of the first rotating shaft are rotationally connected with two supporting arms of the U-shaped supporting arm section respectively, a first angle adjusting mechanism is arranged in the U-shaped supporting arm section and connected with the first rotating shaft, a second rotating shaft and a second angle adjusting mechanism connected with the second rotating shaft are arranged in the rotating connecting section, and the second rotating shaft is rotationally connected with the rotating connecting section. The end, away from the first rotating shaft, of the second rotating shaft is rotationally connected with a connecting flange. After a cutter of a machine tool is mounted on the angle adjusting shaft head for double-angle adjustment, the angle adjusting shaft head can deal with more complex workpiece machining under the matching of the first angle and the second angle.

Description

Technical Field

[0001] This utility model relates to the field of attitude control mechanism technology, and in particular to an angle adjustment shaft head with dual angle adjustment. Background Technology

[0002] CNC engraving machines typically consist of a bed, cutting tools, workpiece clamping, and a moving platform. Most current CNC engraving machines operate on four axes, including horizontal X-axis movement, horizontal Y-axis movement, Y-axis movement of the tool holder, and workpiece rotation. However, four-axis CNC engraving machines cannot continuously perform multi-faceted machining on a workpiece, requiring multiple clamping and program adjustments, wasting significant manpower and time. Therefore, five-axis CNC engraving machines have gradually emerged in the market. Specifically, an angle-adjusting spindle is installed between the cutting tool and the tool holder. This spindle allows for changing the angle of the cutting tool, thereby enabling multi-faceted machining of the workpiece. For example, the angle-adjusting spindle disclosed in patent number "201410086963.8," entitled "Five-Axis CNC Engraving Machine Swing Head," includes a fixed frame, a grinding head mounting frame, and a grinding head. The fixed frame is used for fixed connection to the tool holder, and the grinding head mounting frame is connected to and mounted on the fixed frame. A servo motor is mounted on the fixed frame, and a synchronous belt connects the servo motor to the grinding head, transmitting power to the grinding head via the synchronous belt. However, the aforementioned angle-adjusting shaft head can only adjust the swing angle of the grinding head, and the adjustment angle is limited, making it unable to handle more complex workpiece processing. Utility Model Content

[0003] Therefore, one objective of this utility model is to propose a dual-angle adjustable head to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dual-angle adjustable shaft head includes a shaft head housing and a shaft head body. The shaft head housing includes a U-shaped support arm section and a rotating connecting section. The shaft head body is located between two supports of the U-shaped support arm section. The shaft head body is fixedly connected to a first rotating shaft perpendicular to the axis of the shaft head body. The two ends of the first rotating shaft are rotatably connected to the two supports of the U-shaped support arm section, respectively. A first angle adjustment mechanism is provided in the U-shaped support arm section and is connected to the first rotating shaft. A second rotating shaft and a second angle adjustment mechanism are provided in the rotating connecting section. The second rotating shaft is rotatably connected to the rotating connecting section. A connecting flange is rotatably connected to the end of the second rotating shaft away from the first rotating shaft.

[0006] Furthermore, the first angle adjustment mechanism includes a first worm gear, a first worm meshing with the first worm gear, and a first drive mechanism for driving the first worm gear to rotate. The first worm gear is coaxially and fixedly connected to the first rotating shaft, and the first worm gear is rotatably connected to the U-shaped support arm section. The second angle adjustment mechanism includes a second worm gear, a second worm meshing with the second worm gear, and a second drive mechanism for driving the second worm gear to rotate.

[0007] Furthermore, the axis of the second rotating shaft is perpendicular to the axis of the first rotating shaft, and the axis of the first rotating shaft is perpendicular to the plane in which the axis of the second rotating shaft and the axis of the shaft head body are located.

[0008] Furthermore, the first driving mechanism includes a first motor that drives the first worm to rotate. The first motor drives the first worm through a first reduction gear set, and the axis of the output shaft of the first motor is parallel to the axis of the first worm.

[0009] Furthermore, the second drive mechanism includes a second motor that drives the second worm to rotate. The second motor drives the second worm through a second reduction gear set, and the axis of the output shaft of the second motor is parallel to the axis of the second worm.

[0010] Furthermore, both the second motor and the first motor are located between the second worm gear and the shaft head body.

[0011] Furthermore, the first rotating shaft is connected to the U-shaped support arm section via a first bearing, and the second rotating shaft is connected to the rotating connecting section via a second bearing.

[0012] Furthermore, the first worm gear is connected to the U-shaped support arm section via a first bearing, and the second worm gear is connected to the rotating connecting section via a second bearing.

[0013] Furthermore, the connecting flange is rotatably connected to the second rotating shaft via a third bearing.

[0014] Furthermore, a first reduction mechanism is provided between the output shaft of the first motor and the first worm gear, and a reduction mechanism is provided between the output shaft of the second motor and the second worm gear.

[0015] Therefore, this utility model has the following beneficial effects:

[0016] The dual-angle adjustable shaft head of this utility model can swing the shaft head body through the first angle adjustment mechanism and the first rotating shaft to achieve adjustment in the first angle. The shaft head housing can be rotated as a whole through the second angle adjustment mechanism and the second rotating shaft to drive the shaft head body to rotate and achieve adjustment in the second angle. After the machine tool is installed on the dual-angle adjustable shaft head, the first angle and the second angle can be combined to handle more complex workpiece processing.

[0017] The dual-angle adjustable shaft head of this utility model has an axis of the first rotating shaft perpendicular to the plane where the axis of the second rotating shaft and the axis of the shaft head body are located, so that when the shaft head housing rotates, the shaft head body will rotate along with the shaft head housing.

[0018] The dual-angle adjustable shaft head of this utility model has a reasonable and compact arrangement of various mechanisms inside the shaft head housing, which can effectively save internal space of the shaft head housing and reduce the volume of the worm gear transmission adjustable shaft head.

[0019] The angle-adjusting shaft head of this utility model adopts a worm gear transmission method for angle adjustment. Compared with belt, gear and other transmission methods, it has a compact structure, smooth transmission, low noise, and a large speed ratio that can achieve self-locking performance. Its application range can be further expanded and its manufacturing cost is relatively low.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a front perspective view of the external structure of the dual-angle adjustable shaft head of this utility model.

[0023] Figure 2 This is a side view of the external structure of the dual-angle adjustable shaft head of this utility model;

[0024] Figure 3 This is a rear perspective view of the external structure of the dual-angle adjustable shaft head of this utility model.

[0025] Figure 4 This is a side view of the internal structure of the angle-adjusting shaft head of the present invention with dual angle adjustment;

[0026] Figure 5 This is a top view of the internal structure of the angle-adjusting shaft head of this utility model with dual angle adjustment;

[0027] Figure 6 This is a rear perspective view of the internal structure of the angle-adjusting shaft head (without a second rotating shaft) of the present invention for dual-angle adjustment.

[0028] Figure 7 This is a front perspective view of the internal structure of the dual-angle adjustable shaft head (without a second rotating shaft) of this utility model.

[0029] In the diagram: 1. Shaft head housing; 2. Shaft head body; 3. First rotating shaft; 4. First worm gear; 5. First worm; 6. First motor; 7. First reduction mechanism; 8. First bearing; 9. Second rotating shaft; 10. Second worm gear; 11. Second worm; 12. Second motor; 13. Second reduction mechanism; 14. Second bearing; 15. Connecting flange; 16. Third bearing; 17. Tool flange; 18. Motor shaft. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] like Figures 1-7 As shown, a dual-angle adjustable shaft head includes a shaft head housing 1 and a shaft head body 2. The shaft head housing 1 includes a U-shaped support arm section and a rotating connection section. The shaft head body 2 is located between the two supports of the U-shaped support arm section. A first rotating shaft 3 perpendicular to the axis of the shaft head body 2 is fixedly connected to the shaft head body 2. The two ends of the first rotating shaft 3 are rotatably connected to the two supports of the U-shaped support arm section, respectively. A first angle adjustment mechanism is provided in the U-shaped support arm section and is connected to the first rotating shaft 3. A second rotating shaft 9 and a second angle adjustment mechanism connected to the second rotating shaft 9 are provided in the rotating connection section. The second rotating shaft 9 is rotatably connected to the rotating connection section. A connecting flange 15 is rotatably connected to the end of the second rotating shaft 9 away from the first rotating shaft 3.

[0033] The connecting flange 15 is used to mount the worm gear drive angle adjustment shaft head onto the machine tool.

[0034] The dual-angle adjustable shaft head of this utility model can swing the shaft head body 2 through the first angle adjustment mechanism and the first rotating shaft 3 to achieve adjustment in the first angle. Through the second angle adjustment mechanism and the second rotating shaft 9, the shaft head housing 1 can be rotated as a whole to drive the shaft head body 2 to rotate and achieve adjustment in the second angle. After the machine tool is installed on this worm gear transmission adjustable shaft head, the first angle and the second angle can be combined to handle more complex workpiece processing.

[0035] Furthermore, the first angle adjustment mechanism includes a first worm gear 4, a first worm 5 meshing with the first worm gear 4, and a first drive mechanism for driving the first worm 5 to rotate. The first worm gear 4 is coaxially and fixedly connected to the first rotating shaft 3, and the first worm 5 is rotatably connected to the U-shaped support arm section. The second angle adjustment mechanism includes a second worm gear 10, a second worm 11 meshing with the second worm gear 10, and a second drive mechanism for driving the second worm 11 to rotate.

[0036] The first drive mechanism is used to drive the first worm 5 to rotate, which in turn drives the first worm wheel 4 to rotate, causing the first rotating shaft 3 to rotate, making the shaft head body 2 swing, thereby changing the first angle.

[0037] The second worm gear 10 is coaxially and fixedly connected to the second rotating shaft 9, and the second worm 11 is rotatably connected to the rotating connecting section, with the second worm 11 meshing with the second worm gear 10. The second drive mechanism is used to drive the second worm 11 to rotate, which in turn drives the second worm gear 10 to rotate, causing the second rotating shaft 9 to rotate, thus rotating the entire shaft head housing 1, and ultimately rotating the shaft head body 2, achieving a second angle change, thereby realizing dual-angle adjustment, which can handle more complex workpiece processing.

[0038] Furthermore, the axis of the second rotating shaft 9 is perpendicular to the axis of the first rotating shaft 3, and the axis of the first rotating shaft 3 is perpendicular to the plane in which the axis of the second rotating shaft 9 and the axis of the shaft head body 2 are located, so that when the shaft head housing 1 rotates, the shaft head body 2 will also rotate.

[0039] Furthermore, the first drive mechanism includes a first motor 6 that drives the first worm 5 to rotate. The first motor 6 drives the first worm 5 through a first reduction gear set, and the axis of the output shaft of the first motor 6 is parallel to the axis of the first worm 5.

[0040] The first motor 6 is used to drive the first worm gear 5. Specifically, the output shaft of the first motor 6 and the first worm gear 5 can be directly and coaxially fixedly connected, or a first reduction mechanism 7 can be set between the output shaft of the first motor 6 and the first worm gear 5.

[0041] In order to rationally arrange the positions of the first motor 6 and the first worm gear 5 and optimize the space they occupy within the shaft head housing 1, in this embodiment, as follows: Figures 1 to 7As shown, the first motor 6 drives the first worm 5 through the first reduction mechanism 7. The axis of the output shaft of the first motor 6 is parallel to the axis of the first worm 5, so that the first motor 6 can be placed side by side with the first worm 5.

[0042] Preferably, the first reduction mechanism 7 is a gear set, including a small gear, a large gear and a double gear, wherein the small gear is coaxially and fixedly connected to the output shaft of the first motor 6, the large gear is coaxially and fixedly connected to the first worm 5, and the double gear includes a small gear and a large gear fixed coaxially, wherein the large gear of the double gear meshes with the small gear on the first motor 6, and the small gear on the double gear meshes with the large gear on the first worm 5.

[0043] Furthermore, the second drive mechanism includes a second motor 12 that drives the second worm 11 to rotate. The second motor 12 drives the second worm 11 through a second reduction gear set, and the axis of the output shaft of the second motor 12 is parallel to the axis of the second worm 11.

[0044] Specifically, the output shaft of the second motor 12 and the second worm gear 11 can be directly and coaxially fixedly connected, or a second reduction mechanism 13 can be set between the output shaft of the second motor 12 and the second worm gear 11.

[0045] Furthermore, in this embodiment, as Figures 1 to 7 As shown, the second motor 12 drives the second worm gear 11 through the second reduction mechanism 13. The axis of the output shaft of the second motor 12 is parallel to the axis of the second worm gear 11, so that the second motor 12 can be placed side by side with the second worm gear 11.

[0046] Preferably, the second reduction mechanism 13 is a gear set, including a small gear, a large gear and a double gear, wherein the small gear is coaxially and fixedly connected to the output shaft of the second motor 12, the large gear is coaxially and fixedly connected to the second worm gear 11, and the double gear includes a small gear and a large gear fixed coaxially, wherein the large gear of the double gear meshes with the small gear on the second motor 12, and the small gear on the double gear meshes with the large gear on the second worm gear 11.

[0047] Furthermore, both the second motor 12 and the first motor 6 are located between the second worm gear 10 and the shaft head body 2, so as to reasonably arrange the internal space of the shaft head housing 1 and optimize the volume of the angle-adjusting shaft head.

[0048] To further optimize the positioning of the second motor 12 and the first motor 6, in this embodiment, as follows: Figures 1 to 7 As shown, the second motor 12 and the first motor 6 are located near the two support arms of the U-shaped support arm section, respectively.

[0049] Furthermore, the first rotating shaft 3 is connected to the U-shaped support arm section via the first bearing 8, and the second rotating shaft 9 is connected to the rotating connecting section via the second bearing 14.

[0050] In this embodiment, as Figures 1 to 7 As shown, the first rotating shaft 3 is connected to the U-shaped support arm section through the first bearing 8. Specifically, both arms of the U-shaped support arm section are provided with through holes. The inner ring of the first bearing 8 is fixedly connected to the first rotating shaft 3, and the outer ring of the first bearing 8 is fixedly connected to the through holes.

[0051] In this embodiment, as Figures 1 to 7 As shown, the second rotating shaft 9 is connected to the rotating connecting section through the second bearing 14. Specifically, the inner ring of the second bearing 14 is fixedly connected to the second rotating shaft 9, and the outer ring of the second bearing 14 is fixedly connected to the rotating connecting section.

[0052] Furthermore, the first worm gear 4 is connected to the U-shaped support arm section via the first bearing 8, and the second worm gear 10 is connected to the rotating connecting section via the second bearing 14.

[0053] In this embodiment, as Figures 1 to 7 As shown, the first worm gear 4 is connected to the U-shaped support arm section through the first bearing 8. Specifically, the first worm gear 4 is located on the side of the first bearing 8. A convex ring is coaxially fixedly connected to the first worm gear 4. The convex ring extends into the inner ring of the first bearing 8 and is fixedly connected to it. The outer ring of the first bearing 8 is fixedly connected to the U-shaped support arm section.

[0054] In this embodiment, the second worm gear 10 is connected to the rotating connecting section through the second bearing 14. Specifically, the second worm gear 10 is located beside the second bearing 14, and a convex ring is coaxially fixedly connected to the second worm gear 10. The convex ring extends into the inner ring of the second bearing 14 and is fixedly connected to it. The outer ring of the second bearing 14 is fixedly connected to the rotating connecting section.

[0055] Furthermore, the connecting flange 15 is rotatably connected to the second rotating shaft 9 via the third bearing 16.

[0056] Specifically, the inner ring of the third bearing 16 is fixedly connected to the second rotating shaft 9, and the outer ring of the third bearing 16 is fixedly connected to the connecting flange 15.

[0057] In this embodiment, a third motor is provided inside the shaft head body 2. The motor shaft 18 of the third motor extends out of the shaft head body 2. A tool flange 17 is coaxially fixedly connected to the motor shaft 18. The tool flange 17 is used to connect various tools, such as grinding heads. When the motor shaft 18 rotates, it can drive the tool flange 17 to rotate, which in turn drives the tool to rotate, thereby realizing machining.

[0058] The present invention achieves the following technical advantages over the prior art:

[0059] 1. In this utility model, the shaft head body can be swung by the first worm gear, the first worm, and the first rotating shaft to achieve adjustment of the first angle. The shaft head housing can be rotated as a whole by the second worm gear, the second worm, and the second rotating shaft to drive the shaft head body to rotate and achieve adjustment of the second angle. After the machine tool is installed on the worm gear transmission angle-adjusting shaft head, the first and second angles can be combined to handle more complex workpiece processing.

[0060] 2. In this utility model, the axis of the first rotating shaft is perpendicular to the plane where the axis of the second rotating shaft and the axis of the shaft head body are located, so that when the shaft head housing rotates, the shaft head body will rotate along with the shaft head housing.

[0061] 3. In this utility model, the various mechanisms inside the shaft head housing are arranged reasonably and have a compact structure, which can effectively save the internal space of the shaft head housing and reduce the volume of the worm gear transmission angle adjustment shaft head.

[0062] 4. In this utility model, the angle adjustment adopts a worm gear transmission method. Compared with belt, gear, and other transmission methods, it has a compact structure, smooth transmission, lower noise, and a high speed ratio that can achieve self-locking performance. This further expands its application range and reduces manufacturing costs.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] It will be readily understood by those skilled in the art that this utility model includes any combination of the utility model content and specific embodiments described in the foregoing specification, as well as the various parts shown in the accompanying drawings. Due to space limitations and for the sake of brevity, not all of these combinations have been described in detail. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-angle adjustable angle adjustment shaft head, characterized in that, The device includes a shaft head housing and a shaft head body. The shaft head housing includes a U-shaped support arm section and a rotating connection section. The shaft head body is located between two supports of the U-shaped support arm section. The shaft head body is fixedly connected to a first rotating shaft perpendicular to the axis of the shaft head body. The two ends of the first rotating shaft are rotatably connected to the two supports of the U-shaped support arm section, respectively. The U-shaped support arm section is provided with a first angle adjustment mechanism connected to the first rotating shaft. The rotating connection section is provided with a second rotating shaft and a second angle adjustment mechanism connected to the second rotating shaft. The second rotating shaft is rotatably connected to the rotating connection section. A connecting flange is rotatably connected to the end of the second rotating shaft away from the first rotating shaft.

2. The angle-adjusting shaft head with dual angle adjustment according to claim 1, characterized in that, The first angle adjustment mechanism includes a first worm gear, a first worm meshing with the first worm gear, and a first drive mechanism for driving the first worm gear to rotate. The first worm gear is coaxially and fixedly connected to the first rotating shaft, and the first worm gear is rotatably connected to the U-shaped support arm section. The second angle adjustment mechanism includes a second worm gear, a second worm meshing with the second worm gear, and a second drive mechanism for driving the second worm gear to rotate.

3. The angle-adjusting shaft head with dual angle adjustment according to claim 1, characterized in that, The axis of the second rotating shaft is perpendicular to the axis of the first rotating shaft, and the axis of the first rotating shaft is perpendicular to the plane in which the axis of the second rotating shaft and the axis of the shaft head body are located.

4. The angle-adjusting shaft head with dual angle adjustment according to claim 2, characterized in that, The first driving mechanism includes a first motor that drives the first worm to rotate. The first motor drives the first worm through a first reduction gear set, and the axis of the output shaft of the first motor is parallel to the axis of the first worm.

5. The angle-adjusting shaft head with dual angle adjustment according to claim 4, characterized in that, The second drive mechanism includes a second motor that drives the second worm to rotate. The second motor drives the second worm through a second reduction gear set, and the axis of the output shaft of the second motor is parallel to the axis of the second worm.

6. The angle-adjusting shaft head with dual angle adjustment according to claim 5, characterized in that, Both the second motor and the first motor are located between the second worm gear and the shaft head body.

7. The angle-adjusting shaft head with dual angle adjustment according to claim 1, characterized in that, The first rotating shaft is connected to the U-shaped support arm section via a first bearing, and the second rotating shaft is connected to the rotating connecting section via a second bearing.

8. The angle-adjusting shaft head with dual angle adjustment according to claim 2, characterized in that, The first worm gear is connected to the U-shaped support arm section via a first bearing, and the second worm gear is connected to the rotating connection section via a second bearing.

9. The angle-adjusting shaft head with dual angle adjustment according to claim 1, characterized in that, The connecting flange is rotatably connected to the second rotating shaft via a third bearing.

10. The angle-adjusting shaft head with dual angle adjustment according to claim 5, characterized in that, A first reduction mechanism is provided between the output shaft of the first motor and the first worm gear, and a second reduction mechanism is provided between the output shaft of the second motor and the second worm gear.

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