Four-rail five-axis machine tool

Abstract

The embodiment of the utility model provides a four-rail type five-axis machine tool which comprises two supporting seats, two guide rails, two guide rails, a driving device and a driving device, and the two supporting seats are both fixed to a machine tool frame; the first sliding part comprises two sliding plates, and the two sliding plates are erected on the two supporting seats respectively; the saddle is a square seat comprising four side surfaces; the square seat frame is arranged on the two sliding plates and is in sliding connection with the sliding plates; the saddle is of a structure with a hollow middle part, and four inner side walls are formed; and the main shaft is a square main shaft matched with the saddle structure, and the main shaft is erected on the four inner side walls and is in sliding connection with the four inner side walls. According to the technical scheme, the main shaft can be driven to slide from the at least two side faces of the main shaft, for example, the at least two side faces comprise the two opposite side faces, the main shaft can be supported more stably, the sliding precision of the main shaft is improved, and therefore the machining precision is improved.

Description

Technical Field

[0001] This invention relates to the field of data machine tool processing technology, specifically to a four-track five-axis machine tool. Background Technology

[0002] The overhead gantry / cradle five-axis machining center is a high-precision CNC machining equipment widely used in aerospace, automotive manufacturing, mold making, and other fields. Its main feature is its ability to perform complex machining in multiple axes, providing high efficiency and high precision.

[0003] A four-track five-axis machine tool includes a spindle that drives the cutting tool to move up and down. Therefore, the spindle is mounted on the machine tool via a sliding block and guide rail mechanism. In this field, there is a continuous pursuit of improving the precision and accuracy of spindle sliding control. Utility Model Content

[0004] This application provides a four-track five-axis machine tool to solve or alleviate one or more technical problems in the prior art.

[0005] This application provides a four-track five-axis machine tool, including:

[0006] Two support bases, both of which are fixed to the machine tool frame;

[0007] The first sliding member includes two sliding plates, which are respectively mounted on the two support bases;

[0008] The saddle is a square seat with four sides; the square seat is mounted on two sliding plates and slidably connected to the sliding plates; the saddle has a hollow structure in the middle, forming four inner side walls;

[0009] The main shaft is a square main shaft adapted to the saddle structure, and the main shaft is mounted on the four inner side walls and slidably connected to the four inner side walls.

[0010] In one embodiment, both sliding plates are perpendicularly disposed to the two support seats, and the bottoms of both sliding plates are slidably connected to the two support seats.

[0011] In one embodiment, a connector is also included for connecting the two sliding plates.

[0012] In one embodiment, a first driving mechanism is further included for driving the sliding plate to slide along the support base.

[0013] In one embodiment, the first driving mechanism includes: a first driving motor, a first lead screw, a first nut seat, and a first fixed seat. The first lead screw is arranged parallel to the support seat, and the first nut seat is fixedly connected to the connecting member.

[0014] In one embodiment, the first driving mechanism further includes a grating and a test piece, one end of which is attached to the side of the connector, and the grating detects the position of the test piece to obtain the position of the sliding plate.

[0015] In one embodiment, the connector includes a long side and a protruding short side, the long side being fixedly connected to the two sliding plates, and the test piece being attached to the short side.

[0016] In one embodiment, the main shaft is provided with at least three slide rails, and the inner sidewall of the saddle is provided with sliders adapted to the slide rails, with at least two sliders corresponding to each slide rail.

[0017] In one embodiment, the spindle is provided with four slide rails, which are evenly distributed on two opposite first sides of the spindle.

[0018] In one embodiment, the saddle has a protrusion and a sliding seat on the outer side of the two opposite second sides of the main shaft, and the sliding seat is slidably connected to the sliding plate.

[0019] The embodiments of this application employ the above-described technical solution to drive the spindle to slide from at least two sides, such as two opposing sides, thereby enabling more stable support of the spindle, improving the accuracy of spindle sliding, and thus improving machining accuracy.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0022] Figure 1 A schematic diagram of a four-track five-axis machine tool according to an embodiment of this application is shown.

[0023] Figure 2A schematic diagram of the saddle according to an embodiment of this application is shown. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] This application provides a four-track five-axis machine tool. Figure 1 A schematic diagram of a four-track five-axis machine tool according to an embodiment of this application is shown. Figure 2 A schematic diagram of the saddle 600 according to an embodiment of this application is shown. Figure 1 and Figure 2 As shown, the four-track five-axis machine tool provided in this application embodiment includes two support seats 200, a first sliding member, a saddle 600 and a spindle 400.

[0026] Both of the aforementioned support bases 200 are fixed on the machine tool frame 100; the machine tool frame 100 can be erected on the ground.

[0027] The first sliding member includes two sliding plates 300, which are respectively mounted on two support bases 200.

[0028] The saddle 600 is a square seat with four sides; the square seat is mounted on two sliding plates 300 and slidably connected to the sliding plates 300; the saddle 600 has a hollow structure in the middle, forming four inner side walls.

[0029] The main shaft 400 is a square main shaft 400 adapted to the structure of the saddle 600. The main shaft 400 is mounted on the four inner side walls and is slidably connected to the four inner side walls.

[0030] A cutting tool is provided at the end of the spindle 400. During the sliding process of the spindle 400, the cutting tool moves up and down, thereby enabling the cutting tool to process the target object at different positions. The spindle 400 is a square spindle 400 adapted to the structure of the saddle 600, so that the spindle 400 is mounted on and slidably connected to the four inner side walls, thereby supporting the spindle 400 from four positions on the spindle 400. This ensures that the spindle 400 is subjected to the force of the four inner side walls during the sliding process, resulting in uniform weight distribution and more precise control of the sliding position.

[0031] Compared to existing four-track five-axis machine tools, which typically only have a slide rail 410 on one side, this design results in uneven force distribution on both sides of the spindle 400 due to the influence of the spindle's gravity, which affects the control accuracy of the tool's movement position.

[0032] This application provides a four-track five-axis machine tool to improve the accuracy of CNC machining. Specifically, this application improves the control accuracy during the CNC machining process by enhancing the sliding control accuracy of the spindle 400 during its sliding process.

[0033] In one embodiment, both sliding plates 300 are perpendicularly disposed to both support bases 200, and the bottoms of both sliding plates 300 are slidably connected to both support bases 200.

[0034] In this embodiment of the four-track five-axis machine tool, the spindle 400 is mounted within a saddle 600 and slides up and down within the saddle 600 to achieve displacement in the Z-axis direction. Furthermore, the saddle 600 is positioned between two sliding plates 300, and the sliding of the sliding plates 300 causes the saddle 600 to slide, achieving sliding of the spindle 400 in the X-axis direction. The saddle 600 can also slide within the two sliding plates 300 along their extension directions, achieving sliding of the spindle 400 in the Y-axis direction. This allows the spindle 400 to move to a target position in three-dimensional space.

[0035] In one embodiment, a connector 310 is also included for connecting the two sliding plates 300. The connector 310 can be used to connect the two sliding plates 300 at one end, or the connector 310 can be used to connect the two sliding plates 300 at both ends, so that the distance between the two sliding plates 300 is fixed and will not compress the saddle 600.

[0036] It is understandable that the two sliding plates 300 are set parallel to each other or as parallel as possible to facilitate the smooth sliding of the saddle 600.

[0037] The two support bases 200 are also set in parallel or as parallel as possible to facilitate the smooth sliding of the two sliding plates 300.

[0038] Connecting the two sliding plates 300 via the connector 310 facilitates the synchronous movement of the two sliding plates 300, and driving the connector 310 can move the two sliding plates 300.

[0039] In a preferred example, both ends of the two sliding plates 300 are connected by connectors 310.

[0040] The height of the sliding plate 300 needs to be adapted to the sliding space of the spindle 400 along the Z-axis direction. Therefore, the height of the sliding plate 300 is relatively high, and the height of the connector 310 can be lower than the height of the sliding plate 300 to facilitate the installation of the connector 310.

[0041] In one embodiment, a first driving mechanism is further included for driving the sliding plate 300 to slide along the support base 200, that is, driving the connecting member 310 to slide.

[0042] In one embodiment, the first driving mechanism includes: a first driving motor 510, a first lead screw 530, a first nut seat 520 and a first fixed seat 550, wherein the first lead screw is arranged parallel to the support seat 200 and the first nut seat 520 is fixedly connected to the connector 310.

[0043] In this embodiment, the connecting member 310 is driven to slide along the support base 200 via a lead screw 530. The first driving mechanism is configured as follows: Figure 1 As shown.

[0044] Preferably, a first driving mechanism is provided at both ends of the two sliding plates 300 to make the sliding balance at both ends of the two sliding plates 300, so as to facilitate precise control of the displacement of the main shaft 400.

[0045] In one embodiment, the first driving mechanism further includes a grating 540 and a test piece 560. One end of the test piece 560 is attached to the side of the connector 310, and the grating 540 detects the position of the test piece 560 to obtain the position information of the sliding plate 300.

[0046] The test piece 560 can be slidably mounted on the linear guide 540, limiting the position of the connector 310 during the sliding process and preventing the connector 310 from shifting and affecting the accuracy of the spindle 400 position.

[0047] In one embodiment, the connector 310 includes a long side and a protruding short side, the long side being fixedly connected to the two sliding plates 300, and the test piece 560 being attached to the short side.

[0048] The length of the long side depends on the distance between the two sliding plates 300 and also on the size of the saddle 600. The short side can be used at the position where the connecting member 310 slides, so that when the first nut seat 520 pushes the connecting member 310 to slide, it pushes from a position near the middle of the connecting member 310.

[0049] For example, if the connector 310 has a rectangular structure, when the first nut seat 520 is pushed, it is pushed from the side of the connector 310. The force on the connector 310 is close to the side, while the opposite side is completely passively subjected to force, which can easily lead to uneven pushing and cause the connector 310 to tilt.

[0050] In one embodiment, the spindle 400 is provided with at least three slide rails 410, and the inner sidewall of the saddle 600 is provided with sliders 610 adapted to the slide rails 410, with at least two sliders 610 corresponding to each slide rail 410.

[0051] By setting at least three slide rails 410 on the spindle 400, the spindle 400 can be supported at at least three positions during the sliding process, so that the force on the spindle 400 is relatively uniform, the sliding position can be better controlled, and the sliding accuracy is improved.

[0052] In one example, the spindle 400 is provided with three or four slide rails 410, which are evenly distributed on the four sides of the spindle 400.

[0053] In one example, if there are three slide rails 410 on the spindle 400, a slide rail 410 can be provided on each of the three adjacent sides.

[0054] In one embodiment, the spindle 400 is provided with four slide rails 410, which are evenly distributed on two opposite first sides of the spindle 400. That is, each first side is provided with two slide rails 410, which is more conducive to the support and balance of the spindle 400.

[0055] In one embodiment, the saddle 600 has a protrusion and a sliding seat on the outer side of the two opposite second sides of the main shaft 400, and the sliding seat is slidably connected to the sliding plate 300.

[0056] It facilitates the installation of slider 610.

[0057] Other configurations of the four-track five-axis machine tool described in the above embodiments can be derived from various technical solutions now and in the future known to those skilled in the art, and will not be described in detail here.

[0058] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0060] In this application, unless otherwise expressly 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 part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0063] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A four-rail five-axis machine tool, characterized by, The utility model relates to a machine tool frame, which comprises: two support seats, both of which are fixed to the machine tool frame; a first sliding member, which comprises two sliding plates, each of which is arranged on a support seat; a saddle, which is a square seat comprising four sides; the square seat is arranged on the two sliding plates and is in sliding connection with the sliding plates; the saddle has a hollow structure in the middle, forming four inner side walls; a main shaft, which is a square main shaft matching the saddle structure; the main shaft is arranged on the four inner side walls and is in sliding connection with the four inner side walls.

2. Four-track five-axis machine tool according to claim 1, characterized in that Both of the sliding plates are arranged perpendicularly to the two support seats, and the bottom of each sliding plate is in sliding connection with the support seat.

3. The four-rail five-axis machine tool according to claim 1, characterized in that, The utility model also comprises a connecting member for connecting the two sliding plates.

4. Four-track five-axis machine tool according to claim 3, characterized in that The utility model also comprises a first driving mechanism for driving the sliding plates to slide along the support seats.

5. Four-track five-axis machine tool according to claim 4, characterized in that The first driving mechanism comprises a first driving motor, a first screw rod, a first nut seat and a first fixed seat; the first screw rod is arranged parallel to the support seat; and the first nut seat is fixedly connected to the connecting member.

6. Four-track five-axis machine tool according to claim 5, characterized in that The first driving mechanism further comprises a grating and a test sheet; one end of the test sheet is attached to the side of the connecting member; and the grating detects the position of the test sheet to obtain the position of the sliding plate.

7. Four-track five-axis machine tool according to claim 6, characterized in that The connecting member comprises a long side and a short side with a protrusion; the long side is fixedly connected to the two sliding plates; and the test sheet is attached to the short side.

8. The four-rail five-axis machine tool of claim 1, wherein, The main shaft is provided with at least three sliding rails; the inner side walls of the saddle are provided with sliding blocks matching the sliding rails; and at least two sliding blocks are provided for each sliding rail.

9. The four-rail five-axis machine tool of claim 1, wherein, The main shaft is provided with four sliding rails, which are evenly distributed on the opposite first sides of the main shaft.

10. Four-track five-axis machine tool according to claim 9, characterized in that The outer side of the saddle opposite to the opposite second sides of the main shaft is provided with a convex strip and a sliding seat; and the sliding seat is in sliding connection with the sliding plate.

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