A coaxial adjustment structure for a five-axis rotary table

Abstract

This utility model proposes a coaxial adjustment structure for a five-axis rotary table, comprising: a swing arm assembly rotatably connected to the middle working end; a support structure for the rotating shafts on both sides of the swing arm assembly; and clearance adjustment components circumferentially distributed on the mating surfaces of the mounting housing and the rotating shafts. Each clearance adjustment component includes at least two radially displaceable top-fitting adjustment mechanisms. Each top-fitting adjustment mechanism includes an adjustment channel penetrating the mounting housing and a top-fitting mechanism. The working end face of the top-fitting mechanism contacts the outer surface of the rotating shaft. By changing the axial displacement of the top-fitting mechanism, the radial mating clearance between the rotating shaft and the mounting housing is altered, making the swing arm assemblies on both sides of the middle working end concentric. This circumferential multi-point coordinated adjustment mechanism improves the coaxiality adjustment accuracy to ±0.002mm, effectively controlling radial runout at the working end. Through the standardized adjustment channel and top-fitting mechanism design, a single person can complete the clearance reset within minutes, making it particularly suitable for rapid calibration during mass production.

Description

Technical Field

[0001] This utility model relates to the field of five-axis turntable manufacturing technology, and more specifically, to a coaxial adjustment structure for a five-axis turntable. Background Technology

[0002] With the increasing demand for precision in five-axis linkage machining in the high-end equipment manufacturing sector, coaxiality control of rotary table systems has become a key technical bottleneck restricting machining accuracy. Traditional five-axis rotary tables use an integral shaft support structure, which has two significant drawbacks: First, the changes in shaft clearance caused by wear during long-term use cannot be compensated in real time, resulting in increased radial runout at the working end; second, during installation and debugging, concentricity needs to be adjusted by stacking shims or machining the housing, which results in low adjustment accuracy (usually only reaching 0.01mm level), time-consuming repeated disassembly and assembly (each adjustment takes 2-3 hours), and the inability to dynamically compensate. Utility Model Content

[0003] In view of this, the present invention proposes a coaxial adjustment structure for a five-axis rotary table, comprising: a swing arm assembly 10 rotatably connected to the intermediate working end; a support structure for the rotating shaft 13 disposed on both sides of the swing arm assembly 10; and clearance adjustment components circumferentially distributed on the mating surfaces of the mounting housing 11 and the rotating shaft 13. Each clearance adjustment component includes at least two radially displaceable top-connection adjustment mechanisms 20. Each top-connection adjustment mechanism 20 includes an adjustment channel penetrating the mounting housing 11 and a top-connection mechanism 22. The working end face of the top-connection mechanism 22 contacts the outer surface of the rotating shaft 13. By changing the radial mating clearance between the rotating shaft 13 and the mounting housing 11 through the axial displacement of the top-connection mechanism 22, the swing arm assemblies 10 on both sides of the intermediate working end become concentric. The circumferential multi-point coordinated adjustment mechanism improves the coaxiality adjustment accuracy to the ±0.002mm level, effectively controlling the radial runout of the working end. Through the standardized adjustment channel and top-connection mechanism 22 design, a single person can complete the clearance reset within minutes, making it particularly suitable for rapid calibration during mass production.

[0004] A five-axis rotary table coaxial adjustment structure includes: a swing arm assembly 10 rotatably connected to a central working end, and a support structure for a rotating shaft 13 disposed on both sides of the swing arm assembly 10. The support structure for the rotating shaft 13 includes a mounting housing 11 sleeved on the outside of the swing arm assembly 10 and a rotating shaft 13 detachably connected to the mounting housing 11. The structure is characterized in that: a gap adjustment assembly is circumferentially distributed on the mating surface between the mounting housing 11 and the rotating shaft 13. The gap adjustment assembly includes at least two radially displaceable top-fitting mechanism adjustment mechanisms 20. Each top-fitting mechanism adjustment mechanism 20 includes an adjustment channel penetrating the mounting housing 11 and a top-fitting mechanism 22. The working end face of the top-fitting mechanism 22 contacts the outer surface of the rotating shaft 13. The axial displacement of the top-fitting mechanism 22 changes the radial mating gap between the rotating shaft 13 and the mounting housing 11, thereby making the swing arm assemblies 10 on both sides of the central working end concentric.

[0005] Furthermore, the mounting housing 11 is locked to the rotating shaft 13.

[0006] Furthermore, the adjustment channel is provided with an internal thread, and the outer surface of the top contact mechanism 22 is provided with an external thread. The axial displacement of the top contact mechanism 22 is changed by the cooperation of the internal thread and the external thread.

[0007] Furthermore, the top contact mechanism 22 is made of stainless steel.

[0008] Furthermore, the gap adjustment assembly includes three radially displaceable top contact adjustment mechanisms 20, which are evenly distributed at intervals on the mating surfaces of the mounting housing 11 and the rotating shaft 13.

[0009] In some embodiments, the mounting housing 11 is provided with an adjustment window with a scale, and the tail of the top connection mechanism 22 extends into an adjustment handle. The end of the handle is provided with a pointer structure that cooperates with the scale markings, so that the displacement of the top connection mechanism 22 can be seen intuitively.

[0010] Furthermore, the head of the top contact mechanism 22 is an arc surface 23 to prevent scratching the outer surface of the rotating shaft 13.

[0011] Furthermore, the top-connecting mechanism 22 is a top rod with ball bearings.

[0012] Furthermore, a waterproof end cap is provided at the connection point between the adjustment channel penetrating the mounting housing 11 and the external environment.

[0013] Furthermore, the waterproof end cap is hinged to the mounting housing 11.

[0014] The beneficial effects of this utility model are as follows: This utility model proposes a coaxial adjustment structure for a five-axis rotary table, including: a swing arm assembly 10 rotatably connected to the middle working end; a support structure for the rotating shaft 13 disposed on both sides of the swing arm assembly 10; and gap adjustment components circumferentially distributed on the mating surfaces of the mounting housing 11 and the rotating shaft 13. The gap adjustment components include at least two radially displaceable top-fitting adjustment mechanisms 20. Each top-fitting adjustment mechanism 20 includes an adjustment channel penetrating the mounting housing 11 and a top-fitting mechanism 22. The working end face of the top-fitting mechanism 22 contacts the outer surface of the rotating shaft 13. By changing the radial mating gap between the rotating shaft 13 and the mounting housing 11 through the axial displacement of the top-fitting mechanism 22, the swing arm assemblies 10 on both sides of the middle working end become concentric. The circumferential multi-point coordinated adjustment mechanism improves the coaxiality adjustment accuracy to the ±0.002mm level, effectively controlling the radial runout of the working end. Through the standardized adjustment channel and top-fitting mechanism 22 design, a single person can complete the gap reset within a few minutes, which is particularly suitable for rapid calibration during mass production. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the five-axis rotary table coaxial debugging structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the J-plane of the coaxial adjustment structure of the five-axis rotary table of this utility model.

[0017] Figure 3 This is a cross-sectional view of the K-side of the coaxial adjustment structure of the five-axis rotary table of this utility model.

[0018] Figure 4 for Figure 3 Detailed image A.

[0019] Explanation of symbols for key components.

[0020] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model.

[0021] Swing arm assembly 10, mounting housing 11, rotating shaft 13, top connection mechanism adjustment mechanism 20, top connection mechanism 22, arc surface 23. Detailed Implementation

[0022] Example 1:

[0023] like Figure 1-4As shown, a five-axis rotary table coaxial adjustment structure includes: a swing arm assembly 10 rotatably connected to a central working end; and a support structure for rotating shafts 13 disposed on both sides of the swing arm assembly 10. The support structure for the rotating shafts 13 includes a mounting housing 11 sleeved outside the swing arm assembly 10 and a rotating shaft 13 locked to the mounting housing 11. The characteristic feature is that: gap adjustment components are circumferentially distributed on the mating surface between the mounting housing 11 and the rotating shaft 13. The gap adjustment components include at least two radially displaceable top-connection mechanism adjustment mechanisms 20. The structure 22 is made of stainless steel. The top connection mechanism adjustment mechanism 20 includes an adjustment channel that penetrates the mounting housing 11 and a top connection mechanism 22. The working end face of the top connection mechanism 22 is in contact with the outer surface of the rotating shaft 13. The adjustment channel is provided with an internal thread, and the outer surface of the top connection mechanism 22 is provided with an external thread. By the cooperation of the internal thread and the external thread, the axial displacement of the top connection mechanism 22 is changed. By the axial displacement of the top connection mechanism 22, the radial cooperation clearance between the rotating shaft 13 and the mounting housing 11 is changed, so that the swing arm assemblies 10 on both sides of the middle working end are concentric.

[0024] The gap adjustment assembly includes three radially displaceable top-mounting adjustment mechanisms 20, which are evenly distributed at intervals on the mating surfaces of the mounting housing 11 and the rotating shaft 13.

[0025] The mounting housing 11 is provided with an adjustment window with a scale indication. The tail of the top connection mechanism 22 extends into an adjustment handle. The end of the handle is provided with a pointer structure that cooperates with the scale markings, so that the displacement of the top connection mechanism 22 can be seen intuitively. The top connection mechanism 22 is a top rod with a ball bearing. The head of the top connection mechanism 22 is an arc surface 23 to prevent scratching the outer surface of the rotating shaft 13.

[0026] A waterproof end cap is provided at the connection point between the adjustment channel penetrating the mounting housing 11 and the outside; the waterproof end cap is hinged to the mounting housing 11.

[0027] The beneficial effects of this utility model are as follows: This utility model proposes a coaxial adjustment structure for a five-axis rotary table, including: a swing arm assembly 10 rotatably connected to the middle working end; a support structure for the rotating shaft 13 disposed on both sides of the swing arm assembly 10; and gap adjustment components circumferentially distributed on the mating surfaces of the mounting housing 11 and the rotating shaft 13. The gap adjustment components include at least two radially displaceable top-fitting adjustment mechanisms 20. Each top-fitting adjustment mechanism 20 includes an adjustment channel penetrating the mounting housing 11 and a top-fitting mechanism 22. The working end face of the top-fitting mechanism 22 contacts the outer surface of the rotating shaft 13. By changing the radial mating gap between the rotating shaft 13 and the mounting housing 11 through the axial displacement of the top-fitting mechanism 22, the swing arm assemblies 10 on both sides of the middle working end become concentric. The circumferential multi-point coordinated adjustment mechanism improves the coaxiality adjustment accuracy to the ±0.002mm level, effectively controlling the radial runout of the working end. Through the standardized adjustment channel and top-fitting mechanism 22 design, a single person can complete the gap reset within a few minutes, which is particularly suitable for rapid calibration during mass production.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A coaxial debugging structure of a five-axis rotary table, comprising: The swing arm assembly (10) rotatably connected to the middle working end has a support structure for the rotating shaft (13) on both sides of the swing arm assembly (10). The support structure of the rotating shaft (13) includes a mounting housing (11) sleeved on the outside of the swing arm assembly (10) and a rotating shaft (13) detachably connected to the mounting housing (11). The feature is that: the mounting housing (11) and the rotating shaft (13) have gap adjustment components distributed circumferentially on their mating surfaces. The gap adjustment components include at least two radially displaceable top contact mechanism adjustment mechanisms (20). The top contact mechanism adjustment mechanism (20) includes an adjustment channel penetrating the mounting housing (11) and a top contact mechanism (22). The working end face of the top contact mechanism (22) contacts the outer surface of the rotating shaft (13). The radial mating gap between the rotating shaft (13) and the mounting housing (11) is changed by the axial displacement of the top contact mechanism (22), so that the swing arm assemblies (10) on both sides of the middle working end are concentric.

2. The five-axis turntable coaxial debugging structure of claim 1, wherein: The mounting housing (11) is locked to the rotating shaft (13).

3. The five-axis turntable coaxial debugging structure of claim 1, wherein: The adjustment channel is provided with an internal thread, and the outer surface of the top contact mechanism (22) is provided with an external thread. The axial displacement of the top contact mechanism (22) is changed by the cooperation of the internal thread and the external thread.

4. The five-axis turntable coaxial debugging structure of claim 1, wherein: The top connection mechanism (22) is made of stainless steel.

5. The five-axis turntable coaxial debugging structure of claim 1, wherein: The gap adjustment component comprises three radially displaceable top-mounting adjustment mechanisms (20), which are evenly distributed at intervals on the mating surfaces of the mounting housing (11) and the rotating shaft (13).

6. The five-axis turntable coaxial debugging structure of claim 1, wherein: The mounting housing (11) is provided with an adjustment window with scale markings, and the tail of the top connection mechanism (22) extends into an adjustment handle. The end of the handle is provided with a pointer structure that cooperates with the scale markings, so that the displacement of the top connection mechanism (22) can be seen intuitively.

7. The five-axis turntable coaxial debugging structure of claim 1, wherein: The head of the top contact mechanism (22) is an arc surface (23) to prevent scratching the outer surface of the rotating shaft (13).

8. The five-axis turntable coaxial debugging structure of claim 1, wherein: The top-connecting mechanism (22) is a top rod with balls.

9. The five-axis turntable coaxial debugging structure of claim 1, wherein: A waterproof end cap is provided at the connection point between the adjustment channel penetrating the mounting housing (11) and the outside.

10. The five-axis turntable coaxial debugging structure of claim 9, wherein: The waterproof end cap is hinged to the mounting housing (11).

Images