Machining device and method for controlling position accuracy precision of screw hole of rotor shaft of large ship

Abstract

The invention discloses a machining device and method for controlling the position accuracy precision of screw holes of a rotor shaft of a large ship, and the device comprises an indexing flange plate which is connected with one end of the rotor shaft of the large ship, a plurality of calibration structures are arranged on the indexing flange plate, and the calibration structures correspond to the screw holes of the rotor shaft respectively; an indexing flange plate is arranged to be connected with one end of the rotor shaft, the rotor shaft is calibrated and positioned by adjusting and calibrating the position of a calibration hole in the indexing flange plate, the machining precision of the rotor shaft screw hole is guaranteed, and meanwhile the machining precision of the rotor shaft screw hole is guaranteed. The machining method is convenient to calibrate, and the machining time is saved.

Description

Technical Field

[0001] The invention relates to the technical field of ship rotor shaft processing, and in particular to a processing device and method for controlling the position accuracy of screw holes of a large ship rotor shaft. Background Art

[0002] During the machining of rotor shafts of large ships, the screw holes of rotor shafts generally need to be machined on large floor-standing boring and milling machines to control the axial and radial position accuracy of the screw holes. It is relatively easy to control the axial position accuracy, but it is difficult to control the radial rotation position accuracy of the screw holes because the radial position needs to be rotated after each row of screw holes is machined.

[0003] The rotor shaft of a large ship is relatively large in size. In the prior art, there is no processing device for controlling the position accuracy when processing the screw holes on the rotor shaft, which makes the processing of the screw holes on the rotor shaft relatively difficult. Summary of the invention

[0004] The purpose of the present invention is to provide a processing device and method for controlling the position accuracy of screw holes on rotor shafts of large ships, aiming to solve the problem that there is no processing device for controlling the position accuracy when processing screw holes on rotor shafts in the prior art, making the processing of screw holes on rotor shafts difficult.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] On the one hand, the present invention provides a processing method for controlling the position accuracy of screw holes of a large ship rotor shaft, comprising:

[0007] A dividing flange is connected to one end of a rotor shaft of a large ship. A plurality of calibration structures are arranged on the dividing flange. The plurality of calibration structures are respectively arranged corresponding to a plurality of rotor shaft screw holes for controlling the position accuracy of the screw holes of the rotor shaft of the large ship.

[0008] Preferably, the plurality of calibration structures include: a plurality of calibration holes annularly opened on the dividing flange.

[0009] Preferably, the plurality of calibration holes correspond to the plurality of rotor shaft screw holes one by one and are respectively located on the same horizontal plane.

[0010] Preferably, the indexing flange is also provided with a plurality of connecting holes.

[0011] Preferably, it further comprises: a fastener, wherein the fastener passes through the connecting hole and is connected to one end of the rotor shaft.

[0012] On the other hand, the present invention also provides a processing method for controlling the position accuracy of the screw hole of the rotor shaft of a large ship, which adopts the above-mentioned processing device for controlling the position accuracy of the screw hole of the rotor shaft of a large ship, and the method comprises:

[0013] Step S1: clamping and leveling the rotor shaft;

[0014] Step S2: installing the indexing flange at one end of the rotor shaft and setting it coaxially with the rotor shaft;

[0015] Step S3: adjusting the positions of the plurality of calibration structures so that the plurality of calibration structures correspond to the plurality of rotor shaft screw holes one by one;

[0016] Step S4: rotating the rotor shaft, calibrating the rotated rotor shaft according to the position of the calibration structure on the indexing flange, and processing the rotor shaft screw holes one by one.

[0017] Preferably, in step S3, after the position adjustment of a plurality of the calibration structures is completed, the indexing flange is fixedly connected to the rotor shaft.

[0018] Preferably, the plurality of calibration structures include: a plurality of calibration holes annularly opened on the dividing flange, and the positions of the plurality of calibration holes are adjusted so that the plurality of calibration holes correspond one-to-one with the plurality of rotor shaft screw holes.

[0019] Preferably, the dividing flange is mounted on the stern flange of the rotor shaft.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a processing device and method for controlling the position accuracy of the screw hole of a large ship rotor shaft. A dividing flange is provided to be connected to one end of the rotor shaft. The rotor shaft is calibrated and positioned by adjusting the position of the calibration hole on the calibration dividing flange. The device and method are used to control the position accuracy of the screw hole of the rotor shaft, thereby ensuring the processing accuracy of the screw hole of the rotor shaft. At the same time, this processing method facilitates calibration and saves processing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are an embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0023] Figure 1 A schematic diagram of the structure of a processing device for controlling the position accuracy of screw holes on a rotor shaft of a large ship provided by an embodiment of the present invention;

[0024] Figure 2 An AA cross-sectional view of a processing device for controlling the position accuracy of screw holes on a rotor shaft of a large ship provided by an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the installation of a processing device for controlling the position accuracy of screw holes of a rotor shaft of a large ship provided by an embodiment of the present invention on a rotor shaft.

[0026] Explanation of the reference numerals: 1-dividing flange, 2-calibration hole, 3-rotor shaft, 4-rotor shaft screw hole. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 The processing device and method for controlling the position accuracy of the screw hole of the rotor shaft of a large ship proposed in the present invention are further described in detail with specific implementation methods. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any modification of the structure, change in the proportional relationship or adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0028] Since there is no processing device in the prior art for controlling the position accuracy when processing the screw holes on the rotor shaft, the processing of the screw holes on the rotor shaft is relatively difficult.

[0029] On the one hand, reference Figure 1 and Figure 2 As shown, this embodiment provides a processing device for controlling the position accuracy of the screw hole of the rotor shaft of a large ship, comprising: a dividing flange 1, which is connected to one end of the rotor shaft 3 of the large ship, and a plurality of calibration structures are arranged on the dividing flange 1, and the plurality of calibration structures are respectively arranged corresponding to a plurality of rotor shaft screw holes 4, and the rotor shaft screw holes 4 are screw holes located on the outer circle of the rotor intermediate shaft of the rotor shaft 3, and the rotor shaft screw holes 4 are respectively arranged corresponding to the rotor intermediate shaft of the rotor shaft 3. Figure 3 As shown, it is used to control the position accuracy of the screw hole 4 of the rotor shaft of a large ship. The indexing flange 1 is also provided with a plurality of connecting holes. By setting the connecting holes to correspond to the screw holes at the end of the rotor shaft 3, the indexing flange 1 is installed at one end of the rotor shaft 3.

[0030] In this embodiment, the plurality of calibration structures include: a plurality of calibration holes 2 annularly provided on the indexing flange 1. The plurality of calibration holes 2 correspond to the plurality of rotor shaft screw holes 4 one by one and are respectively located on the same horizontal plane.

[0031] The processing device for controlling the position accuracy of the screw hole of the rotor shaft of a large ship further includes: a fastener, which passes through the connecting hole and is connected to one end of the rotor shaft 3.

[0032] On the other hand, this embodiment also provides a processing method for controlling the position accuracy of the screw hole of the rotor shaft of a large ship, which adopts the above-mentioned processing device for controlling the position accuracy of the screw hole of the rotor shaft of a large ship, and the method includes:

[0033] Step S1: clamping and leveling the rotor shaft 3.

[0034] Step S2: installing the indexing flange 1 at one end of the rotor shaft 3 and setting it coaxially with the rotor shaft 3 .

[0035] Step S3: adjusting the positions of the plurality of calibration structures so that the plurality of calibration structures correspond to the plurality of rotor shaft screw holes 4 one by one.

[0036] Step S4: rotating the rotor shaft 3, calibrating the rotated rotor shaft 3 according to the position of the calibration structure on the indexing flange 1, and processing the rotor shaft screw holes 4 one by one.

[0037] In this embodiment, after the position adjustment of several calibration structures is completed, the indexing flange 1 is fixedly connected to the rotor shaft 3. The indexing flange 1 is installed on the stern flange of the rotor shaft 3. The connecting hole on the end face of the indexing flange 1 is consistent with the hole on the end flange of the rotor shaft 3, and there is no relative rotation after the connection is tightened. After the row of screw holes at the rotor intermediate shaft position of the rotor shaft 3 is processed, the rotor shaft 3 needs to be rotated, and the corresponding indexing flange 1 connected to it is also rotated by an angle, and then calibrated according to the calibration holes 2 on the indexing flange 1, the calibration holes 2 on the outer circle of the indexing flange 1 and the new row of screw holes at the rotor intermediate shaft are on the same horizontal line.

[0038] In this embodiment, the plurality of calibration structures include: a plurality of calibration holes 2 annularly opened on the indexing flange 1, and the positions of the plurality of calibration holes 2 are adjusted so that the plurality of calibration holes 2 correspond one-to-one with the plurality of rotor shaft screw holes 4.

[0039] In summary, the processing device and method for controlling the position accuracy of the screw holes of the rotor shaft of a large ship provided in this embodiment, by setting a dividing flange connected to one end of the rotor shaft, and adjusting the position of the calibration hole on the calibration dividing flange, the rotor shaft is calibrated and positioned, which is used to control the position accuracy of the screw holes of the rotor shaft, thereby ensuring the processing accuracy of the screw holes of the rotor shaft. At the same time, this processing method facilitates calibration and saves processing time.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] In the description of the present invention, it should be understood that the terms "center", "height", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In addition, the functional modules in the various embodiments of this document may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0045] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A processing device for controlling the position accuracy of screw holes on a large ship rotor shaft, characterized in that: include: A dividing flange is connected to one end of a rotor shaft of a large ship. A plurality of calibration structures are arranged on the dividing flange. The plurality of calibration structures are respectively arranged corresponding to a plurality of rotor shaft screw holes for controlling the position accuracy of the screw holes of the rotor shaft of the large ship.

2. The processing device for controlling the position accuracy of screw holes of large ship rotor shafts according to claim 1, characterized in that: The plurality of calibration structures include: a plurality of calibration holes annularly opened on the indexing flange.

3. The processing device for controlling the position accuracy of screw holes of rotor shafts of large ships according to claim 2, characterized in that: The plurality of calibration holes correspond to the plurality of rotor shaft screw holes one by one and are respectively located on the same horizontal plane.

4. The processing device for controlling the position accuracy of screw holes of large ship rotor shafts according to claim 1, characterized in that: The indexing flange is also provided with a plurality of connecting holes.

5. The processing device for controlling the position accuracy of screw holes of large ship rotor shafts according to claim 4, characterized in that: Also includes: A fastener passes through the connecting hole and is connected to one end of the rotor shaft.

6. A processing method for controlling the position accuracy of screw holes in a large ship rotor shaft, characterized in that: The method adopts the processing device for controlling the position accuracy of the screw hole of the rotor shaft of a large ship as described in any one of claims 1 to 5, and the method comprises: Step S1: clamping and leveling the rotor shaft; Step S2: installing the indexing flange at one end of the rotor shaft and setting it coaxially with the rotor shaft; Step S3: adjusting the positions of the plurality of calibration structures so that the plurality of calibration structures correspond to the plurality of rotor shaft screw holes one by one; Step S4: rotating the rotor shaft, calibrating the rotated rotor shaft according to the position of the calibration structure on the indexing flange, and processing the rotor shaft screw holes one by one.

7. The processing method for controlling the position accuracy of screw holes of large ship rotor shafts according to claim 6, characterized in that: In the step S3, after the position adjustment of a plurality of the calibration structures is completed, the indexing flange is fixedly connected to the rotor shaft.

8. The processing method for controlling the position accuracy of screw holes of large ship rotor shafts according to claim 6, characterized in that: The plurality of calibration structures include: a plurality of calibration holes annularly opened on the indexing flange, and the positions of the plurality of calibration holes are adjusted so that the plurality of calibration holes correspond one-to-one with the plurality of rotor shaft screw holes.

9. The processing method for controlling the position accuracy of screw holes of large ship rotor shafts according to claim 6, characterized in that: The indexing flange is mounted on the stern flange of the rotor shaft.

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