Flange components and machine tools

Abstract

The present invention belongs to the field of machine tool technology, and specifically relates to a flange assembly and a machine tool. The present invention aims to solve the problem that the assembly process of the BC dual-axis CNC machine tool is complicated and inefficient due to the repeated disassembly and reprocessing of the pendulum basket. In a flange assembly and a machine tool provided by the present invention, the flange assembly includes a flange body, an adjustment mechanism for connecting the flange body to a column, and the adjustment mechanism includes a fixing nut, an adjustment sleeve and a screw; when the fixing nut is rotated toward the column, the length of the small diameter end of the adjustment sleeve extending out of the first step hole of the flange body increases; when the fixing nut is rotated away from the column, the length of the small diameter end of the adjustment sleeve extending out of the first step hole of the flange body decreases, thereby achieving adjustment of the gap between the flange and the column. In this way, it is only necessary to adjust the adjustment mechanism at the corresponding position to achieve adjustment of the parallelism of the B-axis motor with the Y-axis of the machine tool and the perpendicularity with the X-axis.

Description

Technical Field

[0001] The present invention belongs to the technical field of machine tools, and in particular relates to a flange assembly and a machine tool. Background Art

[0002] In a BC dual-axis CNC machine tool, the B-axis refers to the axis that rotates about the Y-axis, and the C-axis refers to the axis that rotates about the Z-axis. A BC dual-axis CNC machine tool includes a pendulum basket, a motor, a worktable, bearings, a column, and a flange. The pendulum basket is connected to the B-axis motor and the C-axis motor. On the C-axis, the motor's stator is fixed inside the pendulum basket, and the worktable is fixed to the motor's rotor, which is rotationally connected to the pendulum basket via bearings. On the B-axis, the pendulum basket is fixed to the motor's rotor, and the motor's stator is fixed to the column. The B-axis end of the pendulum basket is connected to a flange fixed to the B-axis of the column via a bearing.

[0003] BC dual-axis CNC machine tools have extremely stringent requirements for the parallelism of the B-axis motor with the machine's Y-axis, and perpendicularity with the X-axis, requiring micron or micro-arc precision. Currently, during assembly, the flange must be secured to the B-axis of the column. After the pendulum basket and flange are connected via bearings, the parallelism of the B-axis motor with the machine's Y-axis and perpendicularity with the X-axis must be tested. If the required perpendicularity is not achieved, the pendulum basket must be disassembled and reground or re-ground. The reassembled pendulum basket must then be re-tested for perpendicularity until the required parallelism of the B-axis motor with the machine's Y-axis and perpendicularity with the X-axis are met.

[0004] However, during the assembly process of the BC dual-axis CNC machine tool, the pendulum basket is repeatedly disassembled and reprocessed to ensure the parallelism of the B-axis motor with the Y-axis and the perpendicularity with the X-axis of the machine tool, resulting in a complex assembly process and low efficiency for the BC dual-axis CNC machine tool.

[0005] Accordingly, the art requires a new flange assembly and machine tool to solve the above problems. Summary of the Invention

[0006] In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that during the assembly process of the existing BC dual-axis CNC machine tool, the pendulum basket is repeatedly disassembled and reprocessed to ensure the parallelism of the B-axis and the Y-axis, and the perpendicularity of the B-axis and the X-axis, resulting in a complicated assembly process and low efficiency of the BC dual-axis CNC machine tool, the present invention provides a flange assembly and a machine tool.

[0007] First, the present invention provides a flange assembly comprising a flange body and an adjustment mechanism for connecting the flange body to a column; the adjustment mechanism comprises a fixing nut, an adjustment sleeve and a screw; a plurality of first step holes for setting the adjustment mechanism are formed on the flange body, the small diameter end of the first step hole faces the column; and the large diameter end of the first step hole is provided with an internal thread; the outer periphery of the fixing nut is provided with an external thread matching the internal thread of the first step hole, and the fixing nut is formed with a first center hole; the outer diameter of the adjustment sleeve is adapted to the inner diameter of the small diameter end of the first step hole, and the adjustment sleeve is provided with a first thread for the screw to pass through. There are two center holes, and the difference between the length of the adjusting sleeve and the length of the small diameter end of the first step hole is the adjustment spacing. One end of the adjusting sleeve rests on the fixing nut, and the other end of the adjusting sleeve rests on the column. The screw passes through the first center hole and the second center hole in sequence and is connected to the column by threads, and the nut of the screw rests on the fixing nut. When the fixing nut is rotated toward the column, the length of the small diameter end of the adjusting sleeve extending out of the first step hole increases; when the fixing nut is rotated away from the column, the length of the small diameter end of the adjusting sleeve extending out of the first step hole decreases, thereby realizing the adjustment of the gap between the flange and the column.

[0008] As a preferred technical solution of the flange assembly provided by the present invention, an operating portion is provided at one end of the fixing nut facing away from the column.

[0009] As a preferred technical solution of the flange assembly provided by the present invention, the operating portion includes at least one of an operating hole, an operating slot, an operating column and an operating block.

[0010] As a preferred technical solution of the above-mentioned flange assembly provided by the present invention, the first center hole is a second step hole, the small diameter end of the second step hole faces the column, and the nut of the screw rests on the step surface of the second step hole.

[0011] As a preferred technical solution of the above-mentioned flange assembly provided by the present invention, the adjustment mechanism is evenly spaced around the axis of the flange body; and / or the adjustment mechanism is symmetrically arranged relative to the center line of the flange body parallel to the X-axis and / or the Z-axis.

[0012] As a preferred technical solution of the above-mentioned flange assembly provided by the present invention, the flange body is respectively provided with 5 said adjustment mechanisms on both sides of the center line parallel to the Z axis, and the said adjustment mechanisms are symmetrical in pairs relative to the center line parallel to the Z axis.

[0013] As a preferred technical solution of the flange assembly provided by the present invention, the five adjustment mechanisms are evenly arranged on one side of the center line of the flange body parallel to the Z axis.

[0014] As a preferred technical solution of the flange assembly provided by the present invention, there are four adjustment mechanisms, and the adjustment mechanisms are symmetrically arranged in pairs about a center line parallel to the X-axis or the Z-axis.

[0015] As a preferred technical solution of the flange assembly provided by the present invention, the adjustment spacing is set to be greater than or equal to 0.5 mm.

[0016] In addition, the present invention also provides a machine tool, which includes any one of the above-mentioned flange assemblies.

[0017] In a flange assembly and machine tool provided by the present invention, the flange assembly includes a flange body, an adjustment mechanism for connecting the flange body to a column, and the adjustment mechanism includes a fixing nut, an adjustment sleeve, and a screw; the screw passes through the first center hole of the fixing nut and the second center hole of the adjustment sleeve in sequence and is threadedly connected to the column, and the nut of the screw rests on the fixing nut; when the fixing nut rotates toward the column, the length of the small diameter end of the adjustment sleeve extending out of the first step hole of the flange body increases; when the fixing nut rotates away from the column, the length of the small diameter end of the adjustment sleeve extending out of the first step hole of the flange body decreases, thereby adjusting the gap between the flange and the column. In this way, during the assembly process of the BC dual-axis CNC machine tool, only the adjustment mechanism at the corresponding position needs to be adjusted to adjust the parallelism of the B-axis motor with the Y-axis of the machine tool and the perpendicularity with the X-axis, thereby simplifying the assembly process of the BC dual-axis CNC machine tool and improving the assembly efficiency.

[0018] Furthermore, in the flange assembly and machine tool provided by the present invention, the adjustment mechanisms are evenly spaced about the axis of the flange body; and / or the adjustment mechanisms are symmetrically arranged with respect to the centerline of the flange body parallel to the X-axis and / or the Z-axis. This simplifies the process of adjusting the parallelism of the B-axis motor with the Y-axis of the machine tool and the perpendicularity with the X-axis using the adjustment mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The flange assembly and machine tool of the present invention will be described below with reference to the accompanying drawings and in conjunction with a BC dual-axis machine tool.

[0020] Figure 1 Schematic diagram of the structure of the machine tool of this embodiment;

[0021] Figure 2 It is a front view of the machine tool of this embodiment;

[0022] Figure 3 For this embodiment Figure 2 A cross-sectional view of the AA position in FIG;

[0023] Figure 4 is a cross-sectional view of the adjustment mechanism of this embodiment;

[0024] Figure 5 Schematic diagram of the structure of the fixing nut of this embodiment.

[0025] Reference Signs List

[0026] 1-column; 2-flange; 3-adjustment mechanism; 31-fixing nut; 311-second step hole; 312-operating slot; 32-adjustment sleeve; 33-screw; 4-swing basket; 5-workbench. DETAILED DESCRIPTION

[0027] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although this embodiment is described using a BC dual-axis CNC machine tool as an example, the flange assembly provided in this embodiment is not limited to BC dual-axis CNC machine tools and can be applied to other types of machine tools as needed by those skilled in the art.

[0028] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] In order to solve the problem that during the assembly process of the existing BC dual-axis CNC machine tool, the pendulum basket is repeatedly disassembled and reprocessed to ensure the parallelism of the B-axis and the Y-axis, and the perpendicularity of the B-axis and the X-axis, resulting in a complicated and inefficient assembly process of the BC dual-axis CNC machine tool, this embodiment provides a flange assembly and a machine tool.

[0031] First, if Figures 1 to 4As shown, the flange assembly provided in this embodiment includes a flange body 2, an adjustment mechanism 3 for connecting the flange body 2 to the column 1; the adjustment mechanism 3 includes a fixing nut 31, an adjustment sleeve 32 and a screw 33; Figure 4 As shown, a plurality of first step holes for setting the adjustment mechanism 3 are formed on the flange 2 body, and the small diameter end of the first step hole faces the column 1; and the large diameter end of the first step hole is provided with an internal thread; the outer periphery of the fixing nut 31 is provided with an external thread matching the internal thread of the first step hole, and the fixing nut 31 is formed with a first center hole; the outer diameter of the adjusting sleeve 32 is matched with the inner diameter of the small diameter end of the first step hole, and the adjusting sleeve 32 is provided with a second center hole for the screw 33 to pass through, and the difference between the length of the adjusting sleeve 32 and the length of the small diameter end of the first step hole is the adjustment length. To adjust the spacing, one end of the adjustment sleeve 32 rests on the fixing nut 31, and the other end of the adjustment sleeve 32 rests on the column 1; the screw 33 passes through the first center hole and the second center hole in sequence and is connected to the column 1 by threading, and the nut of the screw 33 rests on the fixing nut 31; when the fixing nut 31 rotates toward the column 1, the length of the small diameter end of the adjustment sleeve 32 extending out of the first step hole increases; when the fixing nut 31 rotates away from the column 1, the length of the small diameter end of the adjustment sleeve 32 extending out of the first step hole decreases, thereby adjusting the gap between the flange 2 and the column 1. In this way, during the assembly process of the BC dual-axis CNC machine tool, only the adjustment mechanism 3 at the corresponding position needs to be adjusted to adjust the parallelism of the B-axis motor with the Y-axis of the machine tool and the perpendicularity with the X-axis, thereby simplifying the assembly process of the BC dual-axis CNC machine tool and improving assembly efficiency.

[0032] Specifically, if Figure 1 As shown, when adjusting the parallelism of the B-axis motor with the Y-axis and the perpendicularity with the X-axis of the machine tool, if the axis of the B-axis motor is tilted toward the positive direction (right) of the X-axis, the fixing nut 31 of the adjustment mechanism 3 located on the left side of the center line of the flange 2 parallel to the Z-axis can be rotated in a direction away from the column 1, and / or the fixing nut 31 of the adjustment mechanism 3 located on the right side of the center line of the flange 2 parallel to the Z-axis can be rotated in a direction toward the column 1. While adjusting the fixing nut 31, the screw 33 needs to be rotated in the same direction relative to the column.

[0033] If the axis of the B-axis motor is tilted toward the positive direction (upward) of the Z-axis, the fixing nut 31 of the adjustment mechanism 3 located above the center line of the flange 2 parallel to the X-axis can be rotated in the direction toward the column 1, and / or the fixing nut 31 of the adjustment mechanism 3 located below the center line of the flange 2 parallel to the X-axis can be rotated in the direction away from the column 1. While adjusting the fixing nut 31, the screw 33 needs to be rotated in the same direction relative to the column.

[0034] To facilitate operation of the fixing nut 31 and enable the fixing nut 31 to rotate at the large-diameter end of the first stepped hole of the flange 2, an operating portion may be provided at the end of the fixing nut 31 facing away from the column 1. The operating portion includes at least one of an operating hole, an operating slot 312, an operating column, and an operating block, and may be a combination of different types thereof. For example, the operating portion may include both an operating hole and an operating column.

[0035] like Figure 5 The fixing nut 31 shown is provided with four circular operating slots 312. The fixing nut 31 is rotated by inserting the operating column of the corresponding operating tool into the corresponding operating slot 312. The first center hole provided on the fixing nut 31 can be a second stepped hole 311, with the small diameter end of the second stepped hole 311 facing the column 1, and the nut of the screw 33 resting on the stepped surface of the second stepped hole 311. In this way, the nut of the screw 33 can be hidden at the large diameter end of the second stepped hole 311, making the surface of the fixing nut 31 or the flange 2 more neat. The nut of the screw 33 can be provided with a triangular slot or a hexagonal slot to facilitate the rotation of the screw 33.

[0036] Since the flange assembly provided in this embodiment is mainly used for fine-tuning (millimeter or micron level) the parallelism of the B-axis motor and the Y-axis of the machine tool and the perpendicularity to the X-axis, the smaller the spacing between the threads of the fixing nut 31 and the flange 2 is set, the better the adjustment effect.

[0037] As a preferred embodiment of the flange assembly provided in this example, the adjustment mechanisms 3 are evenly spaced about the axis of the flange 2 body; and / or the adjustment mechanisms 3 are symmetrically arranged with respect to the centerline of the flange 2 body, which is parallel to the X-axis and / or the Z-axis. This simplifies the process of adjusting the parallelism of the B-axis motor with the machine tool's Y-axis and the perpendicularity with the X-axis.

[0038] For example, Figure 1 and Figure 2 As shown, the flange 2 body is provided with five adjustment mechanisms 3 on both sides of the midline parallel to the Z axis, and the adjustment mechanisms 3 are symmetrical with respect to the midline parallel to the Z axis. Preferably, the five adjustment mechanisms 3 on one side of the midline of the flange 2 body parallel to the Z axis are evenly arranged.

[0039] For another example, four adjustment mechanisms 3 may be provided on the flange 2 , and the adjustment mechanisms 3 are symmetrically arranged in pairs about a center line parallel to the X-axis or the Z-axis.

[0040] The adjustment spacing is set to be greater than or equal to 0.5 mm. The flange assembly provided in this embodiment is mainly used to fine-tune (millimeter or micron level) the parallelism of the B-axis motor and the Y-axis of the machine tool, and the perpendicularity to the X-axis. Those skilled in the art can set a specific value for the adjustment gap according to actual needs. The larger the adjustment spacing, the larger the adjustment range.

[0041] In addition, this embodiment also provides a machine tool, which includes any of the above-mentioned flange assemblies. Figure 1 and Figure 2 The machine tool shown is a BC dual-axis CNC machine tool, comprising a pendulum basket 4, a motor (not shown), a worktable 5, bearings (not shown), a column 1, and a flange 2. The B-axis motor and the C-axis motor are connected to the pendulum basket 4. On the C-axis, the motor's stator is fixed inside the pendulum basket 4, and the worktable 5 is fixedly connected to the motor's rotor. The worktable 5 is rotationally connected to the pendulum basket 4 via a bearing. On the B-axis, the pendulum basket 4 is fixedly connected to the motor's rotor, and the motor's stator is fixedly connected to the column 1. The column 1 is fixedly provided with a flange 2 in the B-axis direction. The flange 2 is connected to the column 1 via an adjustment mechanism 3. The B-axis end of the pendulum basket is connected to a flange fixed to the column's B-axis via a bearing.

[0042] Of course, the above-mentioned replaceable implementations, as well as the replaceable implementations and the preferred implementations, can be used in a cross-functional manner to combine new implementations to suit more specific application scenarios.

[0043] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features that are included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of the present invention and to form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.

[0044] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A flange assembly, characterized in that: The flange assembly includes a flange body and an adjustment mechanism for connecting the flange body to a column; the adjustment mechanism includes a fixing nut, an adjustment sleeve and a screw; The flange body is formed with a plurality of first step holes for setting the adjustment mechanism, wherein the small-diameter ends of the first step holes face the column; and the large-diameter ends of the first step holes are provided with internal threads; The outer periphery of the fixing nut is provided with an external thread that matches the internal thread of the first stepped hole, and the fixing nut is formed with a first central hole; The outer diameter of the adjusting sleeve is adapted to the inner diameter of the small diameter end of the first stepped hole, the adjusting sleeve is provided with a second center hole for the screw to pass through, the difference between the length of the adjusting sleeve and the length of the small diameter end of the first stepped hole is the adjustment spacing, one end of the adjusting sleeve abuts against the fixing nut, and the other end of the adjusting sleeve abuts against the column; The screw passes through the first center hole and the second center hole in sequence and is connected to the column through threads, and the nut of the screw rests on the fixing nut; When the fixing nut is rotated toward the column, the length of the adjusting sleeve extending from the small diameter end of the first stepped hole increases; when the fixing nut is rotated away from the column, the length of the adjusting sleeve extending from the small diameter end of the first stepped hole decreases, thereby adjusting the gap between the flange and the column; The first center hole is a second stepped hole, the small diameter end of the second stepped hole faces the column, and the nut of the screw rests on the stepped surface of the second stepped hole.

2. The flange assembly according to claim 1, wherein: An operating portion is provided on one end of the fixing nut away from the column.

3. The flange assembly according to claim 2, wherein: The operating portion includes at least one of an operating hole, an operating groove, an operating column, and an operating block.

4. The flange assembly according to claim 1, wherein: The adjustment mechanisms are evenly spaced around the axis of the flange body; and / or The adjustment mechanism is symmetrically arranged relative to a center line of the flange body that is parallel to the X-axis and / or the Z-axis.

5. The flange assembly according to claim 1, wherein: The flange body is provided with five adjustment mechanisms on both sides of a center line parallel to the Z axis, and the adjustment mechanisms are symmetrical in pairs relative to the center line parallel to the Z axis.

6. The flange assembly according to claim 5, characterized in that: The five adjustment mechanisms are evenly arranged on one side of the center line of the flange body parallel to the Z axis.

7. The flange assembly according to claim 1, wherein: There are four adjustment mechanisms, and the adjustment mechanisms are symmetrically arranged in pairs about a center line parallel to the X axis or the Z axis.

8. The flange assembly according to claim 1, wherein: The adjustment interval is set to be greater than or equal to 0.5 mm.

9. A machine tool, characterized in that: A flange assembly comprising the flange assembly according to any one of claims 1 to 8.

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