A lathe bed for a turning and milling combined machine tool

Abstract

The utility model relates to a turning and milling combined machine tool body, including body, the body front side forms the inclined workbench surface, be provided with the turret work area, main shaft installation area and center frame work area on the workbench surface, be equipped with a pair of upper guide rails on the turret work area, be equipped with a pair of lower guide rails in the center frame work area, the body is hollow multilayer structure in, the body adopts HT-300 cast iron casting forming, the turning and milling combined machine tool body of the utility model, adopts the hollow multilayer structure, greatly lightens machine tool weight, reduces the invalid cost input, stress can also be more efficient release, can satisfy the requirement of new era high -performance machine tool.

Description

Technical Field

[0001] This utility model relates to the field of machine tool manufacturing, specifically to a turning-milling composite machine tool bed. Background Technology

[0002] In the past, machine tool beds, such as Figure 1 As shown, due to unscientific material proportions, inadequate casting technology, and immature heat treatment techniques, machine tool beds are often cast to be bulky and heavy to meet various parameters, resulting in higher costs and slower stress release. Many existing machine tool beds have also considered the requirements for lightweight machine tools, undergoing various slimming measures. However, some have not achieved the ideal results and have even resulted in a loss of bed strength.

[0003] With the advancement of science and technology, continuous progress in materials science, continuous development in casting technology, and breakthroughs in key technology areas such as electric spindles, the performance of machine tools has been greatly improved. Without sacrificing machine tool performance, lightweighting has become an urgent problem to be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a turning and milling composite machine tool bed, which solves the technical problems of bulky machine tool beds and high manufacturing costs in the past.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A turning-milling composite machine bed is provided, including...

[0007] The machine bed body has an inclined worktable surface on its front side. The worktable surface is provided with a turret working area, a spindle mounting area and a center support working area. The turret working area is provided with a pair of upper guide rails and the center support working area is provided with a pair of lower guide rails.

[0008] The bed body has a hollow multi-layer structure;

[0009] The bed body is made of HT-300 cast iron.

[0010] Furthermore, the hollow multilayer structure has five hollow layers in the height direction, eleven hollow columns in the left and right direction, and four hollow rows in the front and back direction.

[0011] Furthermore, the surface hardness of the upper and lower guide rails reaches HRC50 or higher.

[0012] Furthermore, a detachable motor mount is provided on one side of the bed body, and the motor mount is located on the side of the spindle mounting area.

[0013] Furthermore, a pair of connecting seats are provided on the side of the bed body, and the connecting seats are integral with the bed body;

[0014] An L-shaped mounting opening is formed on the motor base, and the motor base mates with the connecting seat through the L-shaped mounting opening;

[0015] Multiple vertical bolts pass through the motor base and are vertically locked to the connecting seat, while multiple horizontal bolts pass through the motor base and are horizontally locked to the connecting seat.

[0016] Furthermore, a pair of through holes are opened at the bottom of the bed body, and the two through holes penetrate the bed body in the front-to-back direction.

[0017] The beneficial effects of this utility model are:

[0018] The bed of this milling and turning composite machine tool adopts a hollow multi-layer structure, which greatly reduces the weight of the machine tool, reduces ineffective cost investment, and allows for more efficient stress release, thus meeting the requirements of high-performance machine tools in the new era.

[0019] The hollow multi-layer structure forms a ribbed reinforcement structure, which, combined with the inclined worktable, not only improves the structural strength but also enhances the overall consistency and aesthetics of the bed. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of a traditional one-piece cast machine tool bed;

[0022] Figure 2 and Figure 3 This is a schematic diagram of the bed of the milling and turning machine tool of this utility model:

[0023] Figure 4 This is a schematic diagram of the bed (with motor base) of the milling and turning machine tool of this utility model:

[0024] Figure 5 This is a schematic diagram of the motor mount;

[0025] Among them, 1. Bed body, 11. Upper guide rail, 12. Lower guide rail, 13. Through hole;

[0026] 2. Connecting bracket; 3. Motor bracket. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] This application provides a turning-milling composite machine bed, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0029] To address the technical problems of bulky and costly machine tool beds in existing technologies, one embodiment of this application provides a turning-milling composite machine tool bed. This is described in detail below.

[0030] like Figures 2 to 5 As shown, a turning-milling composite machine tool bed includes...

[0031] The bed body 1 has an inclined worktable surface on its front side. The worktable surface is provided with a turret working area, a spindle mounting area and a center support working area. The turret working area is provided with a pair of upper guide rails 11 and the center support working area is provided with a pair of lower guide rails 12.

[0032] The bed body 1 has a hollow multi-layer structure;

[0033] The bed body 1 is made of HT-300 cast iron.

[0034] Made of HT-300 material with a copper content of 5‰, it has a dense structure, high strength, moderate hardness, low coefficient of friction, and self-lubricating properties, which can reduce tool wear and improve machining accuracy and surface quality. Two tempering processes ensure stress stability.

[0035] The bed adopts a high-strength HT-300 cast iron box-shaped structure, which has excellent overall rigidity and stability.

[0036] The upper guide rail 11 and lower guide rail 12 are integrally cast with the bed body 1, and are integrally cast using a hardened rail design. The material has good shock absorption and deformation resistance. To improve surface hardness and wear resistance, the guide rail surface is hardened to achieve a surface hardness of HRC50 or higher.

[0037] Hardened guideways offer high rigidity, strong shock absorption, and resistance to harsh environments, making them suitable for heavy-duty cutting. The Z-axis guideway has a span of 500mm, which helps improve cutting rigidity and stability.

[0038] Specifically, as an optional implementation method in this embodiment, such as Figure 3 As shown, the hollow multilayer structure has five hollow layers in the height direction, eleven hollow columns in the left and right direction, and four hollow rows in the front and back direction.

[0039] The bed body 1 has hollow layers in the XYZ directions, which can effectively improve the bending and torsional stiffness of the bed, reduce machine tool vibration, and reduce machine tool weight.

[0040] Specifically, as an optional implementation method in this embodiment, such as Figure 4 As shown, a detachable motor mount 3 is provided on one side of the bed body 1, and the motor mount 3 is located on one side of the spindle mounting area.

[0041] The motor base 3 is detached from the bed body 1, allowing the motor base 3 to be angled independently and then assembled later, reducing the casting difficulty of the bed body 1.

[0042] Specifically, as an optional implementation method in this embodiment, such as Figures 3 to 5 As shown, a pair of connecting seats 2 are provided on the side of the bed body 1, and the connecting seats 2 and the bed body 1 are an integral structure;

[0043] An L-shaped mounting opening is formed on the motor base 3, and the motor base 3 is engaged with the connecting seat 2 through the L-shaped mounting opening;

[0044] Multiple vertical bolts pass through the motor base 3 and are vertically locked to the connecting seat 2, while multiple horizontal bolts pass through the motor base 3 and are horizontally locked to the connecting seat 2.

[0045] The motor mount 3 is used to install the drive motor, which drives the spindle to rotate via a belt.

[0046] Specifically, as an optional implementation method in this embodiment, such as Figure 4 As shown, a pair of through holes 13 are opened at the bottom of the bed body 1, and the two through holes 13 penetrate the bed body 1 in the front-to-back direction.

[0047] Two through holes 13 are used to pass through the round pipe for hoisting, so that the user can hoist the lathe bed through the round pipe.

[0048] The worktable is tilted at a 45° angle, which lowers the machine tool's center of gravity, enhances stability, and facilitates chip removal and cleaning.

[0049] The hollow, multi-layered structure significantly saves material in the machine bed, greatly reducing its weight. Through scientific layout, it does not compromise bed strength. The weight reduction actually allows stress to be released more quickly and effectively, thus ensuring consistent machining accuracy over time.

[0050] All the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0051] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0054] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0055] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0056] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A turning-milling composite machine bed, characterized in that, include The bed body (1) has an inclined worktable surface on its front side. The worktable surface is provided with a turret working area, a spindle mounting area and a center support working area. The turret working area is provided with a pair of upper guide rails (11) and the center support working area is provided with a pair of lower guide rails (12). The bed body (1) has a hollow multi-layer structure; The bed body (1) is made of HT-300 cast iron.

2. The turning-milling composite machine bed according to claim 1, characterized in that, The hollow multilayer structure has five hollow layers in the height direction, eleven hollow columns in the left and right directions, and four hollow rows in the front and back directions.

3. The bed of the turning-milling composite machine tool according to claim 1, characterized in that, The surface hardness of the upper guide rail (11) and the lower guide rail (12) reaches HRC50 or higher.

4. The bed of the turning-milling composite machine tool according to claim 1, characterized in that, A detachable motor mount (3) is provided on one side of the bed body (1), and the motor mount (3) is located on one side of the spindle mounting area.

5. The turning-milling composite machine bed according to claim 4, characterized in that, The bed body (1) has a pair of connecting seats (2) on its side, and the connecting seats (2) and the bed body (1) are an integral structure; An L-shaped mounting opening is formed on the motor base (3), and the motor base (3) is engaged with the connecting seat (2) through the L-shaped mounting opening; Multiple vertical bolts pass through the motor base (3) and are vertically locked to the connecting seat (2), and multiple horizontal bolts pass through the motor base (3) and are horizontally locked to the connecting seat (2).

6. The bed of the milling and turning machine tool according to claim 1, characterized in that: The bed body (1) has a pair of through holes (13) at the bottom, and the two through holes (13) pass through the bed body (1) in the front and back directions.

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