Roller cam transmission angle adjusting shaft head

Abstract

The utility model provides a roller cam transmission angle adjusting shaft head which comprises a shell and a shaft head body, the shaft head body is arranged in the shell, a first roller cam assembly and a second roller cam assembly are arranged in the shell, the first roller cam assembly is connected with the shaft head body through a first rotating shaft, and the second roller cam assembly is connected with the shaft head body through a second rotating shaft. The second roller cam assembly is rotationally connected with a first flange through a second rotating shaft, and the second rotating shaft is connected with the shell. According to the angle adjusting shaft head, the roller cam is adopted as an angle adjusting mechanism to adjust the angle of the shaft head, compared with a worm and gear structure, the two staggered shafts can bear larger transmission force, abrasion and thermal displacement are reduced, and quality stability is improved. In addition, the roller cam is high in transmission efficiency, efficient conduction can be kept even under high-speed operation, and the service life is long. The roller cam is in meshing contact in a rolling mode, the problem of forward and reverse rotation back clearance of gear meshing is avoided, and the precision of the angle adjusting shaft head is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a roller cam transmission angle adjustment shaft head. Background Technology

[0002] CNC machining centers are commonly used equipment for processing mechanical parts. Their intelligent operation can save labor and has the advantages of high precision. Their main structure includes a control system, a rotary drive axis and a spindle head. The electric spindle on the spindle head also has an angle adjustment function.

[0003] Currently, most shaft heads use worm gears as the angle adjustment mechanism to adjust the shaft head angle. The worm gear and the worm are connected by a gear structure to transmit the motion and power between the two intersecting shafts. However, the angle adjustment of the shaft head during the machining process usually involves a large transmission force, which results in greater friction loss during the transmission of the worm gear, easy wear, and a relatively short service life. In addition, it generates more heat, which reduces the stability of the shaft head. Utility Model Content

[0004] Therefore, one objective of this utility model is to provide a roller cam drive angle adjustment shaft head to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A roller cam drive angle adjustment shaft head includes a housing and a shaft head body. The shaft head body is disposed inside the housing. The housing contains a first roller cam assembly and a second roller cam assembly. The first roller cam assembly is connected to the shaft head body via a first rotating shaft. The second roller cam assembly is rotatably connected to a first flange via a second rotating shaft, and the second rotating shaft is connected to the housing.

[0007] Furthermore, the first roller cam assembly includes a first roller and a first cam, the first roller meshing with the first cam, the first cam being connected to the shaft head body via a first rotating shaft, the first rotating shaft passing through the shaft head body, and the axis of the first rotating shaft being perpendicular to the axis of the shaft head body.

[0008] Furthermore, the second roller cam assembly includes a second roller and a second cam, the second roller meshing with the second cam, the second cam being connected to the housing via a second rotating shaft, the axis of the second rotating shaft being perpendicular to the axis of the first rotating shaft.

[0009] Furthermore, it also includes a first motor and a second motor. The first motor is connected to the first roller and is used to drive the first roller. The second motor is connected to the second roller and is used to drive the second roller.

[0010] Furthermore, a third motor is provided inside the shaft head body, and the shaft head body is provided with a connecting end. The motor shaft of the third motor extends from the connecting end, and a second flange is provided at the connecting end. The second flange is connected to the motor shaft of the third motor.

[0011] Furthermore, it also includes a first reduction gear assembly and a second reduction gear assembly, wherein the output end of the first motor is connected to the first roller through the first reduction gear assembly, and the output end of the second motor is connected to the second roller through the second reduction gear assembly.

[0012] Furthermore, the first reduction gear assembly includes a first gear, a second gear, and a third gear. The pitch circle diameter of the first gear is smaller than that of the second gear. The third gear is a double gear, including a large gear and a small gear. The first gear meshes with the large gear of the third gear, and the second gear meshes with the small gear of the third gear. The first gear is connected to the output end of the first motor, and the second gear is connected to the first roller.

[0013] Furthermore, the housing includes a support portion and a connecting portion. The support portion is U-shaped and includes two support arms. The shaft head body is located between the two support arms, and the two ends of the first rotating shaft are rotatably connected to the two support arms respectively.

[0014] Furthermore, the first roller cam assembly, the second roller cam assembly, and the second rotating shaft are all disposed within the connecting portion, and the second rotating shaft is connected to the connecting portion.

[0015] Furthermore, the first rotating shaft is connected to the two supporting arms via a first bearing, and the second rotating shaft is connected to the connecting part via a second bearing.

[0016] Therefore, this utility model has the following beneficial effects:

[0017] The angle-adjusting shaft head of this invention uses a roller cam as an angle adjustment mechanism to adjust the angle of the shaft head. Compared with the worm gear structure, the two intersecting shafts can bear a greater transmission force, reduce wear and thermal displacement, and improve the stability of the angle-adjusting shaft head.

[0018] In addition, roller cams have high transmission efficiency, maintaining efficient transmission even at high speeds, and have a long service life.

[0019] The roller cam engages through rolling contact, eliminating the backlash issues associated with gear engagement and significantly improving the accuracy of the angle-adjusting shaft.

[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 an isometric view of the roller cam drive angle adjusting shaft head of this utility model;

[0023] Figure 2 This is an axonometric view of the roller cam drive angle adjustment shaft head of this utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the structure of the shell of this utility model;

[0025] Figure 4 This is a top view of the roller cam drive angle adjusting shaft head hidden in the housing of this utility model;

[0026] Figure 5 This is an isometric view of the roller cam drive angle adjustment shaft head hidden in the housing of this utility model;

[0027] Figure 6 This is a schematic diagram of the shaft head body structure of this utility model;

[0028] Figure 7 This is a top view of the second roller cam assembly of this utility model;

[0029] Figure 8 This is a front view of the second roller cam assembly of this utility model;

[0030] Figure 9 This is an isometric view of the second roller cam assembly of this utility model;

[0031] Figure 10 This is an isometric view of the first roller cam assembly of this utility model.

[0032] In the diagram: 1. Housing; 2. Shaft head body; 3. First roller cam assembly; 4. Second roller cam assembly; 5. First rotating shaft; 6. Second rotating shaft; 7. First flange; 8. First roller; 9. First cam; 10. Second roller; 11. Second cam; 12. First motor; 13. Second motor; 14. Connecting end; 15. Motor shaft of the third motor; 16. Second flange; 17. First gear; 18. Second gear; 19. Third gear; 20. Large gear; 21. Small gear; 22. Support part; 23. Connecting part; 24. Support arm; 25. First bearing; 26. Second bearing; 27. First groove; 28. Second groove; 29. ​​Third bearing. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] like Figures 1-10 As shown, a roller cam drive angle adjustment shaft head includes a housing 1 and a shaft head body 2. The shaft head body 2 is disposed inside the housing 1. The housing 1 is provided with a first roller cam assembly 3 and a second roller cam assembly 4. The first roller cam assembly 3 is connected to the shaft head body 2 through a first rotating shaft 5. The second roller cam assembly 4 is rotatably connected to a first flange 7 through a second rotating shaft 6. The second rotating shaft 6 is connected to the housing 1.

[0036] This utility model's angle-adjusting shaft head uses a roller cam as the angle adjustment mechanism. Compared to a worm gear structure, the two intersecting shafts can bear greater transmission force, reducing wear and thermal displacement, and improving quality stability. Furthermore, the roller cam has high transmission efficiency, maintaining efficient transmission even at high speeds, and has a long service life. The roller cam engages through rolling contact, eliminating the backlash problems associated with gear meshing and significantly improving the accuracy of the angle-adjusting shaft head.

[0037] The first flange 7 serves as a connecting structure for mounting the angle-adjusting shaft head onto the machine tool. The first flange 7 is rotatably connected to the second rotating shaft 6 via the third bearing 29. More specifically, the first flange 7 is connected to the end of the second rotating shaft 6 away from the second cam 11 via the third bearing 29.

[0038] Furthermore, such as Figure 3 As shown, the housing 1 includes a support portion 22 and a connecting portion 23. The support portion 22 is U-shaped and includes two support arms 24, as shown in the figure. Figure 1 and Figure 2 As shown, the shaft head body 2 is located between two support arms 24, and the two ends of the first rotating shaft 5 are rotatably connected to the two support arms 24 respectively.

[0039] Furthermore, the first roller cam assembly 3, the second roller cam assembly 4, and the second rotating shaft 6 are all located within the connecting part 23, and the second rotating shaft 6 is connected to the connecting part 23.

[0040] Furthermore, the first rotating shaft 5 is connected to two support arms 24 via the first bearing 25, the second rotating shaft 6 is connected to the connecting part 23 via the second bearing 26, the first cam 9 is connected to one support arm 24 of the support part 22 via the first bearing 25, and the second cam 11 is connected to the connecting part 23 via the second bearing 26.

[0041] The first rotating shaft 5 is fixedly connected to the shaft head body 2. The first roller cam assembly 3 drives the first rotating shaft 5 to rotate, thereby causing the shaft head body 2 to swing, thus realizing the first angle adjustment of the shaft head.

[0042] The second rotating shaft 6 is connected to the connecting part 23 of the housing 1. The second roller cam assembly 4 drives the second rotating shaft 6 to rotate, thereby causing the housing 1 to rotate as a whole, which in turn causes the shaft head body 2 to rotate, thereby realizing the second angle adjustment of the shaft head.

[0043] After the machine tool is installed onto the angle-adjusting shaft head of this utility model, the shaft head is driven by the first roller cam assembly 3 and the second roller cam assembly 4 to adjust the angle. With the cooperation of the first angle and the second angle, more complex workpiece processing can be handled.

[0044] Furthermore, such as Figure 10 As shown, the first roller cam assembly 3 includes a first roller 8 and a first cam 9. The first roller 8 meshes with the first cam 9. The first cam 9 is connected to the shaft head body 2 through a first rotating shaft 5. The first rotating shaft 5 passes through the shaft head body 2, and the axis of the first rotating shaft 5 is perpendicular to the axis of the shaft head body 2.

[0045] In one embodiment, the first cam 9 is coaxially and fixedly connected to the first rotating shaft 5, and one end of the first roller 8 is rotatably connected to the support portion 22 of the housing 1.

[0046] Furthermore, such as Figure 7 , Figure 8 and Figure 9 As shown, the second roller cam assembly 4 includes a second roller 10 and a second cam 11. The second roller 10 meshes with the second cam 11. The second cam 11 is connected to the housing 1 through a second rotating shaft 6. The axis of the second rotating shaft 6 is perpendicular to the axis of the first rotating shaft 5.

[0047] Furthermore, the axis of the first rotating shaft 5 is perpendicular to the plane in which the axis of the second rotating shaft 6 and the axis of the shaft head body 2 are located.

[0048] As one implementation method, such as Figure 4 As shown, the second cam 11 is coaxially and fixedly connected to the second rotating shaft 6.

[0049] In one embodiment, one end of the second roller 10 is rotatably connected to the support portion 22 of the housing 1.

[0050] Furthermore, such as Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, it also includes a first motor 12 and a second motor 13. The first motor 12 is connected to the first roller 8 and is used to drive the first roller 8. The second motor 13 is connected to the second roller 10 and is used to drive the second roller 10.

[0051] Furthermore, such as Figure 10 As shown, the centers of the first motor 12, the first roller 8, and the first cam 9 are located on the same horizontal plane, that is, the first motor 12, the first roller 8, and the first cam 9 are arranged side by side, and the axis of the output shaft of the first motor 12 is parallel to the axis of the first roller 8.

[0052] Furthermore, such as Figure 7 , Figure 8 and Figure 9 As shown, the second motor 13 and the second roller 10 are arranged side by side. The axis of the output shaft of the second motor 13 is parallel to the axis of the second roller 10. The second roller 10 and the second cam 11 are arranged side by side, that is, the second motor 13 and the second roller 10 are located on the first plane, and the second roller 10 and the second cam 11 are located on the second plane. The first plane and the second plane are perpendicular to each other.

[0053] As one implementation method, such as Figure 5 As shown, Figure 5 The second rotating shaft is not shown. There is a certain gap between the second cam 11 in the second roller cam assembly 4 and the shaft head body 2. The first motor 12 of the first roller cam assembly 3 and the second motor 13 of the second roller cam assembly 4 are located between the second cam 11 and the shaft head body 2.

[0054] Furthermore, a third motor is installed inside the shaft head body 2, such as... Figure 6 As shown, the shaft head body 2 is provided with a connecting end 14, and the motor shaft 15 of the third motor (not shown) extends out from the connecting end 14. A second flange 16 is provided at the connecting end 14, and the second flange 16 is connected to the motor shaft 15 of the third motor.

[0055] The second flange 16 serves as a connecting structure for connecting and mounting the cutting tool. The rotation of the third motor shaft drives the second flange 16 to rotate, thereby causing the cutting tool to rotate and process the workpiece.

[0056] Furthermore, such as Figure 2 As shown, it also includes a first deceleration assembly and a second deceleration assembly. The output end of the first motor 12 is connected to the first roller 8 through the first deceleration assembly, and the output end of the second motor 13 is connected to the second roller 10 through the second deceleration assembly.

[0057] Furthermore, such as Figure 9 As shown, the second reduction assembly includes a first gear 17, a second gear 18, and a third gear 19. The pitch circle diameter of the first gear 17 is smaller than that of the second gear 18. The third gear 19 is a double gear, including a large gear 20 and a small gear 21. The first gear 17 meshes with the large gear 20 of the third gear 19, and the second gear 18 meshes with the small gear 21 of the third gear 19. The first gear 17 is connected to the output end of the second motor 13, and the second gear 18 is connected to the second roller 10.

[0058] It is understandable that the first deceleration assembly and the second deceleration assembly have the same structure, so they will not be described in detail here.

[0059] like Figure 3 As shown, a first groove 27 and a second groove 28 are provided on the upper surface of the housing 1. The first groove 27 and the second groove 28 are used to place the gear that accommodates the reduction assembly.

[0060] This invention allows the shaft head body to swing via a first roller cam assembly and a first rotating shaft, achieving adjustment at a first angle. A second roller cam assembly and a second rotating shaft allow the shaft head housing to rotate as a whole, thereby driving the shaft head body to rotate and achieving adjustment at a second angle. After mounting the machine tool onto the angle-adjusting shaft head, the combination of the first and second angles enables the processing of more complex workpieces.

[0061] The axis of the first rotating shaft of this invention 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.

[0062] The various mechanisms inside the shaft head housing of this utility model are arranged in a reasonable and compact manner, which can effectively save internal space of the shaft head housing and reduce the overall volume of the angle-adjusting shaft head.

[0063] This invention employs a roller cam transmission method for dual-angle adjustment. Compared to a worm gear structure, the two intersecting shafts can bear greater transmission force, reducing wear and thermal displacement, and improving quality stability. Furthermore, the roller cam has high transmission efficiency, maintaining efficient transmission even at high speeds, and has a long service life. The roller cam engages through rolling contact, eliminating the backlash issues associated with gear meshing and significantly improving the accuracy of the angle adjustment shaft.

[0064] 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.

[0065] 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.

[0066] 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 roller cam drive angle adjusting shaft head, characterized in that, The device includes a housing and a shaft head body. The shaft head body is disposed inside the housing. The housing contains a first roller cam assembly and a second roller cam assembly. The first roller cam assembly is connected to the shaft head body via a first rotating shaft. The second roller cam assembly is rotatably connected to a first flange via a second rotating shaft, and the second rotating shaft is connected to the housing.

2. The roller cam transmission angle adjusting shaft head according to claim 1, characterized in that, The first roller cam assembly includes a first roller and a first cam, the first roller meshing with the first cam, the first cam being connected to the shaft head body via a first rotating shaft, the first rotating shaft passing through the shaft head body, and the axis of the first rotating shaft being perpendicular to the axis of the shaft head body.

3. The roller cam transmission angle adjusting shaft head according to claim 2, characterized in that, The second roller cam assembly includes a second roller and a second cam, the second roller meshing with the second cam, the second cam being connected to the housing via a second rotating shaft, the axis of the second rotating shaft being perpendicular to the axis of the first rotating shaft.

4. The roller cam transmission angle adjusting shaft head according to claim 3, characterized in that, It also includes a first motor and a second motor. The first motor is connected to the first roller and is used to drive the first roller. The second motor is connected to the second roller and is used to drive the second roller.

5. The roller cam drive angle adjusting shaft head according to claim 1, characterized in that, The shaft head body is equipped with a third motor inside. The shaft head body is provided with a connecting end. The motor shaft of the third motor extends from the connecting end. The connecting end is provided with a second flange, which is connected to the motor shaft of the third motor.

6. The roller cam drive angle adjusting shaft head according to claim 4, characterized in that, It also includes a first deceleration component and a second deceleration component. The output end of the first motor is connected to the first roller through the first deceleration component, and the output end of the second motor is connected to the second roller through the second deceleration component.

7. A roller cam drive angle adjusting shaft head according to claim 6, characterized in that, The first reduction gear includes a first gear, a second gear, and a third gear. The pitch circle diameter of the first gear is smaller than that of the second gear. The third gear is a double gear, including a large gear and a small gear. The first gear meshes with the large gear of the third gear, and the second gear meshes with the small gear of the third gear. The first gear is connected to the output end of the first motor, and the second gear is connected to the first roller.

8. The roller cam transmission angle adjusting shaft head according to claim 1, characterized in that, The housing includes a support portion and a connecting portion. The support portion is U-shaped and includes two support arms. The shaft head body is located between the two support arms, and the two ends of the first rotating shaft are rotatably connected to the two support arms respectively.

9. A roller cam drive angle adjusting shaft head according to claim 8, characterized in that, The first roller cam assembly, the second roller cam assembly, and the second rotating shaft are all disposed within the connecting portion, and the second rotating shaft is connected to the connecting portion.

10. A roller cam drive angle adjusting shaft head according to claim 8, characterized in that, The first rotating shaft is connected to the two supporting arms via a first bearing, and the second rotating shaft is connected to the connecting part via a second bearing.

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