Lathe bed structure and five-axis machine tool

Abstract

The utility model discloses a lathe bed structure and a five-axis machine tool, and relates to the technical field of machine tools. The bed body structure comprises a base, two supporting frames and two supporting plates. The base comprises a base body and two supporting walls, the two supporting walls are arranged on the same side of the base body, and the two supporting walls are arranged on the two opposite side edges of the base body respectively; the two supporting frames are arranged on the side, close to the supporting walls, of the base body, and the two supporting frames are arranged on the side edges where the two supporting walls are located in a one-to-one correspondence mode. The two supporting plates are installed on the sides, away from the base body, of the two supporting walls in a one-to-one correspondence mode, and motor installation faces are arranged on the side faces, close to each other, of the two supporting plates. According to the lathe bed structure, the strength and precision of a lathe can be improved.

Description

Technical Field

[0001] This application relates to the technical field of machine tools, and particularly to a bed structure and a five-axis machine tool. Background Art

[0002] With the rapid development of the national economy, there is an urgent and large demand for high-end CNC machine tools. In order to machine some thin-walled large parts and blade impellers in the military and aerospace industries, the demand for five-axis linkage vertical machining centers has increased rapidly.

[0003] However, in existing five-axis machine tools, the installation surface of the linear motor is located on the outside of the column, resulting in a large span of the crossbeam and affecting the machining accuracy of the five-axis machine tool. Summary of the Utility Model

[0004] This application provides a bed structure and a five-axis machine tool to improve the strength and accuracy of the machine tool.

[0005] This application provides: A bed structure, comprising:

[0006] A base, including a base body and two support walls. The two support walls are arranged on the same side of the base body, and the two support walls are respectively arranged on opposite sides of the base body;

[0007] Two support frames, arranged on the side of the base body close to the support wall, and the two support frames are respectively arranged on the sides where the two support walls are located in a one-to-one correspondence;

[0008] Two support plates, which are respectively installed on the side of the two support walls away from the base body, and motor installation surfaces are configured on the side surfaces of the two support plates close to each other.

[0009] Based on the above technical solutions, each part of the bed structure provided in this application is split into a split structure, which can facilitate the processing of the bed structure and improve the processing technology of each structure. In addition, motor installation surfaces are provided on the sides of the two support plates close to each other, and double linear motors can be installed for driving to improve the movement accuracy of the machine tool in the Y-axis direction. At the same time, a shorter crossbeam can be set in the machine tool to connect the two linear motors. Correspondingly, the moving element mounting plate on the crossbeam can also be set shorter, improving its torsional resistance, and further improving the strength and accuracy of the whole machine tool.

[0010] In some possible implementation manners, the bed structure further includes two mounting plates, and the two mounting plates are respectively arranged on the side of the two support walls away from the base body, and the mounting plates are erected between the support wall and the support frame on the same side;

[0011] On one side of the mounting plate away from the support wall, a first mounting surface and a second mounting surface are configured, and the second mounting surface is located on the side of the first mounting surface closer to the other mounting plate;

[0012] The support plate is mounted on the first mounting surface.

[0013] In some possible embodiments, the bed body structure further includes two adjusting pads, and the two adjusting pads are correspondingly arranged on the sides of the two support frames away from the base body, and the adjusting pads are located between the support frames and the mounting plate on the same side.

[0014] In some possible embodiments, the first mounting surface is located on the side of the second mounting surface closer to the base body, an interface surface is configured between the first mounting surface and the second mounting surface, and the interface surface is attached to the side of the support plate on the same side closer to the other support plate.

[0015] In some possible embodiments, the bed body structure further includes a pad iron mounting plate, and the pad iron mounting plate is embedded on the side of the base body away from the support wall.

[0016] In some possible embodiments, the bed body structure further includes a turntable mounting plate, and the turntable mounting plate is embedded on the side of the base body close to the support wall.

[0017] In some possible embodiments, the bed body structure further includes a tool magazine mounting plate, the tool magazine mounting plate is arranged on the side of the base body close to the support wall, and the tool magazine mounting plate is arranged in a staggered manner with the turntable mounting plate.

[0018] In some possible embodiments, the tool magazine mounting plate is located on the side of the turntable mounting plate closer to the support plate.

[0019] In some possible embodiments, the base and / or the support plate are made of mineral castings.

[0020] In addition, the present application also provides a five-axis machine tool, including the bed body structure provided in each of the above embodiments. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1Shows a front view structural schematic diagram of the bed body structure in some embodiments;

[0023] Figure 2 Shows a side view structural schematic diagram of the bed body structure in some embodiments;

[0024] Figure 3 Shows a top view structural schematic diagram of the bed body structure in some embodiments;

[0025] Figure 4 Shows a partial structural schematic diagram of the bed body structure in some embodiments.

[0026] Description of main component symbols:

[0027] 1000 - Bed body structure;

[0028] 100 - Base; 110 - Base body; 120 - Support wall; 130 - First assembly surface; 140 - Second assembly surface;

[0029] 200 - Support frame;

[0030] 300 - Support plate; 310 - Motor mounting surface;

[0031] 400 - Mounting plate; 410 - First mounting surface; 420 - Second mounting surface; 430 - Connecting surface;

[0032] 500 - Adjusting pad;

[0033] 610 - Wedge mounting plate; 620 - Tool magazine mounting plate; 630 - Turntable mounting plate; 640 - Mounting strip. Detailed implementation manners

[0034] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0035] In the description of the present application, 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", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present application 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 thus should not be construed as limiting the present application.

[0036] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0037] In this application, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0039] As Figure 1 and Figure 2 shown, a Cartesian coordinate system is established, and it is defined that the width direction of the bed body structure 1000 is parallel to the X-axis direction, the length direction of the bed body structure 1000 is parallel to the Y-axis direction, and the height direction of the bed body structure 1000 is parallel to the Z-axis direction. It can be understood that the above definitions are only for facilitating the understanding of the relative positional relationship of each part of the bed body structure 1000 and should not be construed as a limitation to this application.

[0040] An embodiment provides a bed body structure 1000, which can be applied to a machine tool, for example, the bed body structure 1000 can be applied to a five-axis machine tool, etc.

[0041] As Figure 1 shown, the bed body structure 1000 includes a base 100, two support frames 200, and two support plates 300. Among them, the base 100 can be used as the installation carrier in the bed body structure 1000, and other structures can be installed by attaching to the base 100.

[0042] In an embodiment, the base 100 includes a base body 110 and two support walls 120 which are integrally provided, that is, the base body 110 and the support walls 120 can be integrally cast. The two support walls 120 are located on the same side of the base body 110 and are respectively disposed at opposite side edges of the base body 110. In some embodiments, the support walls 120 can be parallel to the Y-axis direction and the Z-axis direction simultaneously.

[0043] The two support frames 200 can be installed on the side of the base body 110 close to the support walls 120. The two support frames 200 can be respectively disposed at the side edges where the two support walls 120 are located in a one-to-one correspondence, and the support frame 200 can be spaced opposite to the support wall 120 on the same side.

[0044] Combined with Figure 2 , the two support plates 300 are respectively disposed on the side of the two support walls 120 away from the base body 110. In addition, motor mounting surfaces 310 are configured on the side surfaces of the two support plates 300 close to each other, which can be used to mount linear motors.

[0045] In the embodiment, each part of the bed body structure 1000 is split into a split structure, which can facilitate the processing of the bed body structure 1000 and improve the processing manufacturability of each structure. In addition, motor mounting surfaces 310 are provided on the side of the two support plates 300 close to each other, and double linear motors can be installed for driving, so as to improve the movement accuracy of the machine tool in the Y-axis direction. At the same time, a shorter cross beam can be provided in the machine tool to connect the two linear motors. Correspondingly, the mover mounting plate on the cross beam can also be set shorter, improving its torsional resistance, and further improving the strength and accuracy of the whole machine tool.

[0046] Furthermore, in some embodiments, the base 100 can be a mineral casting. Specifically, the base 100 can be made of high-quality mineral materials mixed with a small amount of epoxy resin binder. Thus, the base 100 can have a shock absorption capacity about ten times higher than that of traditional cast iron, especially for absorbing large-amplitude vibrations. In addition, the sensitivity of the base 100 to heat can be reduced, the accuracy change of the bed body structure 1000 caused by temperature rise can be reduced, and the accuracy of the bed body structure 1000 can be maintained. In addition, the bed body structure 1000 can have stronger forming ability and can be cast together with other materials.

[0047] As Figure 1 shown, in some embodiments, the bed body structure 1000 further includes a pad iron mounting plate 610. The pad iron mounting plate 610 can be embedded in the side of the base body 110 away from the support walls 120, which can facilitate the connection between the base 100 and the pad iron. During use, the pad iron can be installed at the position of the pad iron mounting plate 610 to provide a supporting effect for the bed body structure 1000.

[0048] In some other embodiments, the shim mounting plate 610 can also be fixedly connected to the base body 110 by means of welding or bolt connection.

[0049] As Figures 1 to 3 shown, in the embodiment, the bed body structure 1000 further includes a tool magazine mounting plate 620 and a turntable mounting plate 630. The tool magazine mounting plate 620 and the turntable mounting plate 630 are both embedded on one side of the base body 110 close to the support wall 120. And, the tool magazine mounting plate 620 and the turntable mounting plate 630 can be arranged along the Y-axis direction.

[0050] In addition, in some embodiments, one side of the base body 110 close to the support wall 120 can be stepped and includes a first assembly surface 130 and a second assembly surface 140. The first assembly surface 130 can be located on the side of the second assembly surface 140 away from the shim mounting plate 610. That is, in the Z-axis direction, the first assembly surface 130 can be located above the second assembly surface 140. In the embodiment, the tool magazine mounting plate 620 can be installed at the position of the first assembly surface 130. The turntable mounting plate 630 can be installed at the position of the second assembly surface 140.

[0051] In some embodiments, the tool magazine mounting plate 620 and the turntable mounting plate 630 can both be cast in the base body 110 by means of embedding, which can improve the installation stability and accuracy.

[0052] In some other embodiments, the tool magazine mounting plate 620 and the turntable mounting plate 630 can also be fixed to the base body 110 by means of welding or bolt connection.

[0053] In the embodiment, the support wall 120 can extend to one end of the second assembly surface 140 close to the first assembly surface 130. The support frame 200 can be fixedly installed at one end of the second assembly surface 140 away from the first assembly surface 130 and is spaced opposite to the support wall 120 on the same side. In some embodiments, the support frame 200 can be fixedly connected to the base 100 by means of bolt connection or welding.

[0054] As Figure 1 and Figure 2 shown, in some embodiments, the bed body structure 1000 further includes two mounting plates 400. The two mounting plates 400 are correspondingly arranged on one side of the two support walls 120 away from the base body 110 and are erected on the support frames 200 on the same side. Specifically, one of the mounting plates 400 can be erected on a group of support walls 120 and support frames 200 on the same side. The other mounting plate can be erected on another group of support walls 120 and support frames 200 on the same side. In some embodiments, the mounting plate 400 can be cast together with the base 100 in the form of embedded parts.

[0055] In some other embodiments, the mounting plate 400 can also be fixedly connected to the base 100 by means of welding or bolt connection, etc.

[0056] As Figure 1 and Figure 2 shown, the bed body structure 1000 further includes an adjusting pad 500, and the adjusting pad 500 can be disposed between the mounting plate 400 and the support frame 200 on the same side. That is, the levelness of the mounting surface of the mounting plate 400 can be adjusted by the adjusting pad 500 to avoid the problem of being too high or too low at one end of the mounting plate 400 close to the support frame 200, so that the levelness of the mounting plate 400 can be improved and the precision of the bed body structure 1000 can be improved. It can be understood that two adjusting pads 500 can be provided and can be respectively disposed on the sides of the two support frames 200 away from the base body 110 to provide a leveling function for the mounting plate 400 on the corresponding side. In the embodiment, the adjusting pad 500 can be movably disposed between the support frame 200 and the mounting plate 400 on the same side and is clamped and fixed by the support frame 200 and the mounting plate 400 on the same side.

[0057] As Figure 4 shown, a first mounting surface 410 and a second mounting surface 420 are disposed on the side of the mounting plate 400 away from the support wall 120. Both the first mounting surface 410 and the second mounting surface 420 are parallel to the Y-axis direction and the X-axis direction at the same time. In addition, the second mounting surface 420 can be located on the side of the first mounting surface 410 close to another mounting plate 400.

[0058] In some embodiments, the first mounting surface 410 can be located on the side of the second mounting surface 420 close to the base 100. That is, in the height direction of the bed body structure 1000, the first mounting surface 410 and the second mounting surface 420 can be in different planes. Correspondingly, the side of the mounting plate 400 away from the base 100 can be presented in a stepped shape. A connecting surface 430 can be provided between the first mounting surface 410 and the second mounting surface 420. The connecting surface 430 can be parallel to the Y-axis direction and the Z-axis direction at the same time.

[0059] In the embodiment, the second mounting surface 420 can be used to mount a guide rail parallel to the Y-axis direction. In some embodiments, the first mounting surface 410 and the second mounting surface 420 can be semi-finished first and then precision ground to ensure the precision requirements of each mounting surface, thereby improving the mounting precision of the bed body structure 1000.

[0060] Compared with traditional machine tools, in the bed body structure 1000 provided by the present application, the second mounting surface 420 for mounting the guide rail can have a relatively low position, so that the mounting stability of the guide rail can be improved, and it has higher support strength, good rigidity and is not easily deformed.

[0061] In the embodiment, the support plate 300 can be installed on the side of the corresponding mounting plate 400 away from the support wall 120. Specifically, the support plate 300 can be installed at the position of the first mounting surface 410. In some embodiments, the support plate 300 and the mounting plate 400 can be fixedly connected by means of bolt connection or welding. At the same time, the support plate 300 can be attached to the connection surface 430, which can improve the installation stability of the support plate 300 and reduce the possibility of problems such as tilting of the support plate 300.

[0062] As Figure 1 shown, an installation strip 640 is further configured on the motor mounting surface 310, which can be used in cooperation with the installation of the linear motor. The installation strip 640 can be parallel to the length direction of the bed body structure 1000. In some embodiments, two or three installation strips 640 or the like can be configured on the motor mounting surface 310 as needed, and the installation strips 640 are spaced apart from each other and parallel.

[0063] In some embodiments, the installation strip 640 can also be fixed to the support plate 300 by means of embedding.

[0064] In other embodiments, the installation strip 640 can also be fixed to the support plate 300 by means of bolt connection or welding.

[0065] In addition, in some embodiments, the support plate 300 can be a mineral casting. Specifically, the support plate 300 can be made of high-quality mineral materials mixed with a small amount of epoxy resin binder. Thus, the shock absorption performance of the bed body structure 1000 can be improved, the precision change of the bed body structure 1000 caused by temperature change can be reduced, and the forming ability is strong.

[0066] During the assembly process, the mounting plate 400, the turntable mounting plate 630, and the shim mounting plate 610 can be cast together with the base 100 in the form of embedded parts. The installation strip 640 can be cast together with the support plate 300 in the form of an embedded part. The base 100 is clamped and fixed, and the positions on the base 100 for installing the support frame 200 and the turntable mounting plate 630 are ground. The support frame 200 is installed at the corresponding position of the base 100; the adjustment shim 500 is configured to level the mounting surface of the mounting plate 400. The first mounting surface 410 and the second mounting surface 420 in the mounting plate 400 are semi-finished and finish-ground. Then, the motor mounting surface 310 of the support plate 300 is ground, and then the support plate 300 is installed at the position of the first mounting surface 410 of the mounting plate 400, and the support plate 300 and the base 100 are locked and fixed by bolts.

[0067] In the embodiment, a five-axis machine tool is further provided, including the bed body structure 1000 provided in the embodiment.

[0068] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0069] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A bed structure, characterized in that: include: A base, comprising a base body and two support walls, wherein the two support walls are arranged on the same side of the base body and the two support walls are arranged on two opposite sides of the base body; Two support frames are arranged on one side of the base body close to the support wall, and the two support frames are arranged one by one on the sides where the two support walls are located; The two support plates are mounted one by one on the side of the two support walls away from the base body, and the side surfaces of the two support plates close to each other are both provided with motor mounting surfaces.

2. The bed structure according to claim 1, characterized in that: The bed structure also includes two mounting plates, which are arranged one by one on the side of the two support walls away from the base body, and the mounting plates are mounted between the support wall and the support frame on the same side; A first mounting surface and a second mounting surface are arranged on one side of the mounting plate away from the supporting wall, and the second mounting surface is located on a side of the first mounting surface close to another mounting plate; The support plate is installed on the first installation surface.

3. The bed structure according to claim 2, characterized in that: The bed structure also includes two adjustment pads, which are arranged one by one on the side of the two support frames away from the base body, and the adjustment pads are located between the support frames and the mounting plate on the same side.

4. The bed structure according to claim 2, characterized in that: The first mounting surface is located on a side of the second mounting surface close to the base body, a connecting surface is arranged between the first mounting surface and the second mounting surface, and the connecting surface is attached to a side of the support plate on the same side close to the other support plate.

5. The bed structure according to claim 1, characterized in that: The bed structure also includes a shim mounting plate, and the shim mounting plate is pre-buried on a side of the base body away from the supporting wall.

6. The bed structure according to claim 1, characterized in that: The bed structure also includes a turntable mounting plate, and the turntable mounting plate is pre-buried on a side of the base body close to the supporting wall.

7. The bed structure according to claim 6, characterized in that: The bed structure also includes a tool magazine mounting plate, which is arranged on a side of the base body close to the supporting wall, and the tool magazine mounting plate is staggered with the turntable mounting plate.

8. The bed structure according to claim 7, characterized in that: The tool magazine mounting plate is located on a side of the turntable mounting plate close to the support plate.

9. The bed structure according to any one of claims 1 to 8, characterized in that: The base and / or the support plate are mineral castings.

10. A five-axis machine tool, characterized in that: It comprises a bed structure as described in any one of claims 1 to 9.

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