Five-axis machine tool

Abstract

The embodiment of the utility model provides a five-axis machine tool which comprises a main shaft, sliding rails are arranged on at least two side faces of the main shaft respectively; the saddle comprises a main side plate and two auxiliary side plates, the two auxiliary side plates are oppositely arranged, first grooves are formed in the positions, matched with the sliding rails, of the main side plate and / or the two auxiliary side plates, and through holes penetrating through the bottoms of the first grooves are formed in the first grooves; the sliding block assembly comprises a sliding block body, a soft gasket and a first connecting piece, the first connecting piece is clamped in the first groove, the soft gasket is clamped in the through hole, the back face of the sliding block body is attached to the soft gasket, and the sliding block body, the soft gasket and the first connecting piece are fixedly connected through threads. The main shaft is driven to slide from at least two side surfaces of the main shaft, so that the main shaft can be supported more stably, and the sliding precision of the main shaft is improved; through the assembling structure of the sliding block assembly, the sliding block can be conveniently installed, the installation precision of the sliding block can be controlled, and the sliding control precision of the main shaft in the five-axis machine tool is further improved.

Description

Technical Field

[0001] This invention relates to the field of data machine tool processing technology, specifically to a 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 five-axis machine tool includes a spindle, which 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 five-axis machine tool to solve or alleviate one or more technical problems in the prior art.

[0005] As one aspect of the embodiments of this application, this application provides a five-axis machine tool, including:

[0006] The spindle has slide rails on at least two sides.

[0007] The saddle includes a main side plate and two secondary side plates. The two secondary side plates are arranged opposite each other to form an open embrace shape. The main side plate and / or the two secondary side plates are provided with a first groove at a position that matches the slide rail. The first groove is provided with a through hole that penetrates the bottom of the first groove.

[0008] The slider assembly includes a slider body, a soft pad, and a first connector. The first connector is engaged in a first groove, the soft pad is engaged in a through hole, the back of the slider body is attached to the soft pad, and the slider body, the soft pad, and the first connector are fixedly connected by threads.

[0009] In one embodiment, the secondary side plate includes a support portion and a triangular portion, the triangular portion including two right-angled sides, which are respectively attached to the main side plate and the support portion.

[0010] In one embodiment, the height of the support portion is 1 / 3 to 3 / 4 of the height of the main side plate.

[0011] In one embodiment, the thickness of the secondary side plate is 1 / 6 to 1 / 4 of the thickness of the main side plate.

[0012] In one embodiment, the slider assembly further includes a second connector for connecting the first connector and the slider body.

[0013] In one embodiment, the first groove is located near the side of the sub-side plate, such that the first groove has a structure including three sidewalls, one side being open, and the second connector is attached to the open side.

[0014] In one embodiment, a groove is provided on one side of the slider body to cooperate with the slide rail; the two opposite inner sidewalls of the groove are provided with protrusions.

[0015] The slide rail has limiting grooves on its two opposite sides to match the protrusions.

[0016] In one embodiment, the depth of the through hole is 2 / 3 to 1 / 3 of the depth of the first groove.

[0017] In one embodiment, the bottom of the first groove is provided with a first threaded hole; the first connector is provided with a second threaded hole aligned with the first threaded hole.

[0018] In one embodiment, the bottom of the first groove is further provided with a third threaded hole; the soft gasket is provided with a fourth threaded hole aligned with the third threaded hole.

[0019] The five-axis machine tool provided in this application embodiment can drive the spindle to slide from at least two sides, such as two opposing sides, which enables more stable support of the spindle, improves the accuracy of spindle sliding, and thus improves machining accuracy. Furthermore, the assembly structure of the slider assembly facilitates slider installation, and the precision control of each component in the slider assembly allows for precise control of slider installation, further enhancing the sliding control accuracy of the spindle in the five-axis machine tool.

[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 five-axis machine tool according to an embodiment of this application is shown.

[0023] Figure 2 A partial exploded view of a five-axis machine tool 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 five-axis machine tool to further improve the accuracy of CNC machining. Specifically, this application improves the control accuracy during CNC machining by enhancing the sliding control accuracy of the spindle during the sliding process. Figure 1 A schematic diagram of a five-axis machine tool according to an embodiment of this application is shown.

[0026] Figure 2 A partially exploded structural diagram of a five-axis machine tool according to an embodiment of this application is shown. Figures 1 to 2 As shown, the five-axis machine tool includes a spindle 200, a saddle 100, and a slide assembly.

[0027] A cutting tool is located at the end of the spindle 200. During the sliding process of the spindle 200, the cutting tool moves up and down, allowing it to machine the target object at different positions. At least two sides of the spindle 200 are equipped with slide rails 210. In existing five-axis machine tools, slide rails 210 are typically only provided on one side. This design results in uneven force distribution on both sides of the spindle 200 due to its own weight, affecting the control accuracy of the cutting tool's movement position.

[0028] The saddle 100 includes a main side plate 110 and two secondary side plates 120. The two secondary side plates 120 are arranged opposite each other to form an open embrace shape. The main side plate 110 and / or the two secondary side plates 120 are provided with a first groove 301 at a position that matches the slide rail 210. The first groove 301 is provided with a through hole 302 that penetrates the bottom of the first groove 301.

[0029] The saddle 100 forms an embracing structure through the main side plate 110 and two secondary side plates 120, which hugs the main shaft 200 in a hugging manner. Slider blocks are set on opposite sides so that the main shaft 200 is subjected to forces from both sides during sliding, and the weight is evenly distributed, so that the sliding position can be controlled more precisely.

[0030] The main side plate 110 of the saddle 100 is fixed to the machine tool frame. The machine tool frame also houses other components required for a five-axis machine tool. The saddle 100 can also move relative to the machine tool, allowing the tool position to move horizontally. Because two auxiliary side plates 120 are added to the saddle 100, the operating space is relatively small during slide installation, and the two opposite sides of the auxiliary side plates 120 require high precision to ensure the slide installation accuracy. However, the inconvenience of operation makes it difficult to meet application requirements in terms of accuracy at this position.

[0031] In this embodiment, a first groove 301 and a through hole 302 are provided at the position of the slider to be installed in the saddle 100 to facilitate the installation of the slider.

[0032] The slider assembly includes a slider body 310, a soft pad 320, and a first connector 330. The first connector 330 is engaged in a first groove 301, and the soft pad 320 is engaged in a through hole 302. The back of the slider body 310 is attached to the soft pad 320. The slider body 310, the soft pad 320, and the first connector 330 are fixedly connected by threads.

[0033] like Figure 2 As shown, firstly, the first connector 330 is inserted into the first groove 301, adhering to the bottom of the first groove 301. The size of the first connector 330 is adapted to the size of the first groove 301. Next, a soft pad 320 is inserted into the through hole 302 from the other side of the sub-side plate 120, filling the through hole 302. Then, the slider is adhered to the side of the sub-side plate 120, and the threads are passed through the threaded holes to assemble the components of the slider assembly into one piece. This method of slider assembly facilitates installation, reduces installation costs and difficulty, and ensures a tighter fit between the slider and the sub-side plate 120.

[0034] The above description uses the secondary side plate 120 as an example. In actual applications, the slider assembly described above can also be used to install sliders on the main side plate 110.

[0035] This design allows for a certain level of precision on the surface of the soft pad 320, and also allows for the high precision machining of the side or bottom of the first groove 301 and the first connecting piece 330. This enables the slider to move the slide rail 210 with high precision.

[0036] In one example, first grooves 301 may be provided on the two opposite sidewalls of the saddle 100 to support the spindle 200 from both sides.

[0037] In one example, a first groove 301 can be provided on each of the three side walls of the saddle 100 to support the main shaft 200 from the three sides of the main shaft 200, resulting in more stable support and higher precision in sliding control.

[0038] Each slide rail 210 is equipped with at least two sliders to make the longitudinal sliding of the spindle 200 more stable and avoid deviation in longitudinal position.

[0039] In one example, a slide rail 210 can be configured with two or three sliders.

[0040] In this embodiment, the saddle 100 is designed in an embracing shape to hold the spindle 200 in a hugging manner. Sliders are positioned on opposite sides to ensure that the spindle 200 receives forces from both sides during sliding, resulting in even weight distribution and more precise control of the sliding position. Furthermore, the assembly structure of the slider assembly facilitates slider installation, and the precision control of each component within the slider assembly allows for precise control of the slider installation, further improving the sliding control precision of the spindle 200 in the five-axis machine tool.

[0041] In one embodiment, the secondary side plate 120 includes a support portion 121 and a triangular portion 122. The triangular portion 122 includes two right-angled sides, which are respectively attached to the main side plate 110 and the support portion 121.

[0042] In one example, the triangular portion 122 and the support portion 121 are integrally formed, and the secondary side plate 120 and the main side plate 110 are integrally formed to improve the stability of the saddle 100.

[0043] The structural design of the support portion 121 and the triangular portion 122 enhances the supporting force of the support portion 121 and further improves its stability. The triangular portion 122 may be provided at the top and / or bottom of the support portion 121.

[0044] In one embodiment, the height of the support portion 121 is 1 / 3 to 3 / 4 of the height of the main side plate 110. The height of the support portion 121 is adapted to the distance between the two end sliders, so that the two end sliders can be installed on the edge of the support plate, which facilitates the processing and installation of the slider assembly.

[0045] By making the height of the support 121 lower than that of the main side plate 110, the weight of the secondary side plate 120 can be reduced, and the installation of the slider assembly can be facilitated.

[0046] In one embodiment, the thickness of the secondary side plate 120 is 1 / 6 to 1 / 4 of the thickness of the main side plate 110.

[0047] Because the spindle 200 is relatively heavy and the saddle 100 bears a heavy load, the main side plate 110 of the saddle 100 has a relatively wide width to ensure the load-bearing stability of the saddle 100. The secondary side plate 120 can be narrower or thinner, just enough to assist in supporting the spindle 200. The wider main side plate 110 of the saddle 100 also facilitates its installation on the machine tool bracket 900. Furthermore, the wider width of the saddle 100 and the thinner secondary side plate 120 also contribute to the gravity balance of the saddle 100 itself, further improving sliding accuracy.

[0048] In one embodiment, the slider assembly further includes a second connector 340 for connecting the first connector 330 and the slider body 310.

[0049] like Figure 2 As shown, the second connector 340 is fixedly connected to the first connector 330 and the slider body 310 by threads, thereby fixing the slider assembly.

[0050] In one embodiment, the first groove 301 is disposed near the side of the sub-side plate 120, such that the first groove 301 has a structure including three side walls, one side being open, and the second connector 340 is attached to the open side.

[0051] The open structure facilitates the processing of the first groove 301, and also facilitates the placement of the first connector 330 within the first groove 301. It also facilitates the fixing of the second connector 340, so that the threads on the second connector 340 do not need to be inserted too deeply to achieve fixing with the first connector 330 and the slider body 310.

[0052] In one embodiment, a groove is provided on one side of the slider body 310 to cooperate with the slide rail 210; protrusions are provided on the two opposite inner sidewalls of the groove; and limiting grooves are provided on the two opposite sides of the slide rail 210 to cooperate with the protrusions.

[0053] Sliding is achieved through the cooperation of the slide groove and the slide rail 210. Furthermore, the protrusion and the limiting groove cooperate synchronously to make the sliding of the slide rail 210 more stable. That is, the sliding is limited from three sides, which limits the sliding direction of the slide rail 210 and makes the movement more stable.

[0054] In one embodiment, the depth of the through hole 302 is 2 / 3 to 1 / 3 of the depth of the first groove 301. The depth of the through hole 302 is less than the depth of the first groove 301, and the depth of the through hole 302 can be relatively small. The thickness of the soft pad 320 can be greater than the depth of the through hole 302, so that the soft pad 320 can protrude from the side of the sub-side plate 120 and contact the slider body 310. Then, the first groove 301 and the slider body 310 are fixed by threads, so that the slider body 310 has elastic force when it is attached to the sub-side plate 120, which rebounds the slider body 310 to contact the slide rail 210, thereby enhancing the stability and accuracy of the slide rail 210 during the sliding process.

[0055] In one embodiment, the bottom of the first groove 301 is provided with a first threaded hole; the first connector 330 is provided with a second threaded hole aligned with the first threaded hole. The first connector 330 and the secondary side plate 120 are fixed by threads passing through the first threaded hole and the second threaded hole.

[0056] In one embodiment, the bottom of the first groove 301 is further provided with a third threaded hole; the flexible pad 320 is provided with a fourth threaded hole aligned with the third threaded hole. The flexible pad 320, the first connector 330, and the slider body 310 are fixed by threads passing through the third and fourth threaded holes. The arrangement of each threaded hole is as follows: Figure 2 As shown.

[0057] The five-axis machine tool provided in this application embodiment can drive the spindle 200 to slide from at least two sides, such as two opposing sides, which allows for more stable support of the spindle 200, improves the sliding accuracy of the spindle 200, and thus improves machining accuracy. Furthermore, the assembly structure of the slider assembly facilitates slider installation, and the precision control of each component in the slider assembly allows for precise control of the slider installation accuracy, further enhancing the sliding control accuracy of the spindle 200 in the five-axis machine tool.

[0058] Other configurations of the five-axis machine tool 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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 five-axis machine tool, characterized in that, include: A spindle, wherein at least two sides of the spindle are respectively provided with slide rails; The saddle includes a main side plate and two secondary side plates, which are arranged opposite each other to form an open embrace shape. The main side plate and / or the two secondary side plates are provided with a first groove at a position adapted to the slide rail. The first groove is provided with a through hole penetrating the bottom of the first groove. A slider assembly includes a slider body, a soft pad, and a first connector. The first connector is engaged in the first groove, the soft pad is engaged in the through hole, the back of the slider body is attached to the soft pad, and the slider body, the soft pad, and the first connector are fixedly connected by threads.

2. The five-axis machine tool according to claim 1, characterized in that, The secondary side plate includes a support portion and a triangular portion. The triangular portion includes two right-angled sides, which are respectively attached to the main side plate and the support portion.

3. A five-axis machine tool according to claim 2, characterized in that, The height of the support portion is 1 / 3 to 3 / 4 of the height of the main side plate.

4. A five-axis machine tool according to claim 1 or 2, characterized in that, The thickness of the secondary side plate is 1 / 6 to 1 / 4 of the thickness of the main side plate.

5. A five-axis machine tool according to claim 1, characterized in that, The slider assembly further includes a second connector for connecting the first connector and the slider body.

6. A five-axis machine tool according to claim 5, characterized in that, The first groove is located near the side of the sub-side plate, so that the first groove has a structure including three side walls, one side of which is open, and the second connector is attached to the open side.

7. A five-axis machine tool according to claim 1, characterized in that, A groove is provided on one side of the slider body to cooperate with the slide rail; the two opposite inner sidewalls of the groove are provided with protrusions. The slide rail has limiting grooves on its two opposite sides to cooperate with the protrusion.

8. A five-axis machine tool according to claim 1, characterized in that, The depth of the through hole is 2 / 3 to 1 / 3 of the depth of the first groove.

9. A five-axis machine tool according to claim 1, characterized in that, The bottom of the first groove is provided with a first threaded hole; the first connector is provided with a second threaded hole aligned with the first threaded hole.

10. A five-axis machine tool according to claim 1, characterized in that, The bottom of the first groove is also provided with a third threaded hole; the soft pad is provided with a fourth threaded hole aligned with the third threaded hole.

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