Machine tool body and machine tool

Abstract

The machine tool body comprises a base, a first stand column, a second stand column and a fixed cross frame, the first stand column and the second stand column are arranged on the rear portion of the base, the fixed cross frame is erected at the upper end of the first stand column and the upper end of the second stand column, a movable cross beam is arranged between the first stand column and the second stand column in a crossing mode, and a sliding saddle is arranged above the movable cross beam in a sliding mode. The machine tool body further comprises auxiliary supporting legs, the movable cross beam is arranged behind the first stand column and the second stand column, the auxiliary supporting legs are fixed to the lower portion of the rear portion of the base and extend towards the rear portion of the base, and the projection of the movable cross beam on the horizontal plane and the projection of the base on the horizontal plane at least partially coincide. The movable cross beam and the spindle box borne by the movable cross beam are stably supported through the designed auxiliary supporting legs, and meanwhile the overall stability of the machine tool body is further improved through reasonable design of the interior of the base and reasonable distribution of the ground feet at the bottom of the base.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machine tool, more specifically, relate to a machine tool body and machine tool. BACKGROUND

[0002] In the field of machine tool, gantry machine tool plays an important role by virtue of its larger machining space and being suitable for machining large and heavy parts. With the continuous development of industry, the machining industry puts forward higher and higher requirements for the machine tool body of gantry machine tool.

[0003] The traditional machine tool body has certain limitations in overall structure, and the cross beam is often supported by the front column only, so that the overall stability of the machine tool body is poor. When machining large and complex workpieces, the machine tool body cannot bear large load with the change of machining position, which seriously affects the machining efficiency and precision of the machine tool. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a machine tool body and machine tool to solve the problem of poor overall stability of the machine tool body, which seriously affects the machining efficiency and precision of the machine tool.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] On the one hand, the utility model provides a machine tool body, which comprises a base, a first column and a second column arranged at the rear part of the base, a fixed cross beam arranged on the upper end of the first column and the second column, a moving cross beam arranged between the first column and the second column, a sliding saddle arranged above the moving cross beam, and a spindle box arranged above the sliding saddle; the machine tool body further comprises an auxiliary supporting leg, the moving cross beam is movably arranged behind the first column and the second column, the auxiliary supporting leg is fixed below the rear part of the base and extends to the rear of the base, and the projection of the moving cross beam on the horizontal plane at least partially coincides with the projection of the base on the horizontal plane.

[0007] In some embodiments, the rear part of the bottom of the base is provided with a first anchor mounting part below the first column and a second anchor mounting part below the second column, the middle part of the front part of the bottom of the base is further provided with a third anchor mounting part, the inside of the base is provided with a first inclined rib plate and a second inclined rib plate, the first inclined rib plate is located between the first anchor mounting part and the third anchor mounting part, and the second inclined rib plate is located between the second anchor mounting part and the third anchor mounting part.

[0008] In some embodiments, the base interior is further provided with a transverse rib plate between the first anchor mounting portion and the second anchor mounting portion, and the first inclined rib plate, the second inclined rib plate and the transverse rib plate form a triangular structure.

[0009] In some embodiments, the first inclined rib plate comprises first and second straight plates arranged in parallel and at intervals, the second inclined rib plate comprises third and fourth straight plates arranged in parallel and at intervals, and the intersection of the first inclined rib plate and the second inclined rib plate is located outside the third anchor mounting portion and is provided with a half honeycomb reinforcing rib structure at the intersection.

[0010] In some embodiments, reinforcing rib structures are arranged between the first and second straight plates, between the third and fourth straight plates, between the second and fourth straight plates, between the first straight plate and the left side edge of the base, and between the third straight plate and the right side edge of the base, respectively.

[0011] In some embodiments, the rear side of the base is formed with two protruding ends, and the auxiliary legs comprise two auxiliary legs respectively fixed to the two protruding ends.

[0012] In some embodiments, the ends of the two auxiliary legs away from the base are provided with fourth anchor mounting portions, and anchors are detachably arranged below the first anchor mounting portion, the second anchor mounting portion, the third anchor mounting portion and the two fourth anchor mounting portions.

[0013] In some embodiments, the first upright column, the second upright column and the fixed crossbar form a "door" shaped structure, one side of the movable crossbeam is located between the first upright column and the second upright column, the other side of the movable crossbeam is located at the rear of the first upright column and the second upright column, and the spindle box is telescopically arranged in the "door" shaped structure.

[0014] In some embodiments, the first upright column, the second upright column and the fixed crossbar are integrally formed, and the interiors of the base, the first upright column and the second upright column form a hollow mesh structure.

[0015] In another aspect, the utility model provides a machine tool, including machine tool body, the base is provided with a rotary table, and the spindle box is further provided with a spindle, and the working end of the spindle faces the rotary table.

[0016] The auxiliary legs of the utility model provide stable support for the movable crossbeam and the spindle box carried thereby, and the interiors of the base are reasonably designed and the anchors are reasonably distributed on the bottom of the base, so that the overall stability of the machine tool body is further improved. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the machine tool body of this utility model;

[0019] Figure 2 This is a cross-sectional view of the base of this utility model;

[0020] Figure 3 This is a top view of the base and auxiliary support legs of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1-Base, 2-First column, 3-Second column, 4-Fixed crossbeam, 5-Moving crossbeam, 6-Sliding saddle, 7-Spindle box, 8-Auxiliary support leg, 9-Protruding end, 10-Foot

[0023] 11-First anchor mounting part, 12-Second anchor mounting part, 13-Third anchor mounting part, 14-First inclined rib plate, 15-Second inclined rib plate, 16-Transverse rib plate, 17-Intersection, 18-Left side, 19-Right side, 81-Fourth anchor mounting part

[0024] 141 - First straight plate, 142 - Second straight plate, 151 - Third straight plate, 152 - Fourth straight plate, 171 - Semi-honeycomb reinforcing rib structure Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] It should be noted that in the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] Furthermore, the terms "first," "second," etc., 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. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0030] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0031] like Figures 1 to 3 As shown, the machine tool body provided by this utility model includes a base 1, a first column 2 and a second column 3 disposed at the rear of the base 1, and a fixed crossbeam 4 mounted on the upper end of the first column 2 and the second column 3. A movable crossbeam 5 is also disposed across the first column 2 and the second column 3. A slide saddle 6 is slidably disposed above the movable crossbeam 5, and a spindle box 7 is slidably disposed above the slide saddle 6. The machine tool body of this embodiment also includes an auxiliary support leg 8, which is fixed to the lower rear of the base 1 and extends to the rear of the base 1. The movable crossbeam 5 is movably disposed behind the first column 2 and the second column 3, and the projection of the movable crossbeam 5 on the horizontal plane at least partially overlaps with the projection of the base 1 on the horizontal plane.

[0032] The base 1, the first column 2 and the second column 3 located at the rear of the base 1, and the fixed crossbeam 4 mounted on the upper end of the first column 2 and the second column 3 constitute the main basic structure of the machine tool body. The movable crossbeam 5 spans between the first column 2 and the second column 3, providing a foundation for the installation and movement of the slide saddle 6. The spindle box 7 is slidably mounted above the slide saddle 6. The spindle box 7, the movable crossbeam 5, and the slide saddle 6 work together to achieve the processing requirements.

[0033] Meanwhile, the movable crossbeam 5 is movably positioned behind the first column 2 and the second column 3. The auxiliary support leg 8 is fixed to the lower rear of the base 1 and extends towards the rear of the base 1. The projection of the movable crossbeam 5 onto the horizontal plane at least partially overlaps with the projection of the base 1 onto the horizontal plane, allowing the auxiliary support leg 8 to effectively support the movable crossbeam 5 and its supporting spindle box 7. When the machine tool body is operating, especially during demanding machining processes such as heavy cutting and high-speed feed, the auxiliary support leg 8 can efficiently share the bending moment, torque, and downward gravity load on the movable crossbeam 5, improving the machining stability of the machine tool body and further ensuring the machining accuracy of the machine tool.

[0034] In some implementations, such as Figure 2 and Figure 3 As shown, a first foot mounting part 11 is located below the first column 2 and a second foot mounting part 12 is located below the second column 3 at the rear bottom of the base 1. A third foot mounting part 13 is also located at the center of the front bottom of the base 1. A first inclined rib plate 14 and a second inclined rib plate 15 are provided inside the base 1. The first inclined rib plate 14 is located between the first foot mounting part 11 and the third foot mounting part 13, and the second inclined rib plate 15 is located between the second foot mounting part 12 and the third foot mounting part 13. The location of the first inclined rib plate 14 between the first foot mounting part 11 and the third foot mounting part 13, and the location of the second inclined rib plate 15 between the second foot mounting part 12 and the third foot mounting part 13, can effectively change the force transmission path, effectively disperse and transmit the force on different parts of the base 1, and reduce the possibility of damage or deformation of the base or even the machine tool body structure due to excessive local stress.

[0035] In some implementations, such as Figure 2 and Figure 3 As shown, the base 1 also has a transverse rib 16 inside, located between the first foot mounting part 11 and the second foot mounting part 12. The first inclined rib 14, the second inclined rib 15, and the transverse rib 16 form a triangular structure, providing a stable internal support frame for the base 1. The transverse rib, together with the first inclined rib 14 and the second inclined rib 15, can effectively resist forces in different directions, making the force transmission inside the base 1 more reasonable and stable.

[0036] When a vertically downward force acts on the base 1, the force can be evenly distributed to the first foot mounting part 11 and the second foot mounting part 12 through the transverse rib 16. Simultaneously, the first inclined rib 14 and the second inclined rib 15 can reduce excessive deformation of the base 1 in the front-to-back direction due to force. When a lateral force acts on the base 1, the triangular structure formed by the first inclined rib 14, the second inclined rib 15, and the transverse rib 16 provides mutual support, effectively reducing lateral deformation caused by lateral forces, maintaining the overall stability of the base 1, and thus enhancing the stability of the entire machine tool body. At the same time, this triangular structure, in conjunction with the first foot mounting part 11 and the second foot mounting part 12 of the base 1, rationally distributes and disperses the force transmitted from the column to the base 1, allowing the first foot mounting part 11 and the second foot mounting part 12 to better transmit the force to the ground.

[0037] In some implementations, such as Figure 2 and Figure 3 As shown, the first inclined rib 14 includes a first straight plate 141 and a second straight plate 142 arranged in parallel and spaced apart, and the second inclined rib 15 includes a third straight plate 151 and a fourth straight plate 152 arranged in parallel and spaced apart. This gives the first inclined rib 14 and the second inclined rib 15 a certain internal spatial hierarchy. During the bearing process, the first straight plate 141 and the second straight plate 142, as well as the third straight plate 151 and the fourth straight plate 152, can work together to share the force transmitted from different directions, better disperse and transmit the force, and improve the load-bearing capacity and deformation resistance of the base 1 structure.

[0038] Meanwhile, the intersection 17 of the first inclined rib 14 and the second inclined rib 15 is located on the outside of the third foot mounting part 13, and a semi-honeycomb-shaped reinforcing rib structure 171 is provided at the intersection 17. The third foot mounting part 13 is an important part in the front middle of the bottom of the base 1 for balancing the front and rear forces of the machine tool. The intersection 17 of the first inclined rib 14 and the second inclined rib 15 is a key force-bearing node. The semi-honeycomb-shaped reinforcing rib structure is relatively stable and can effectively distribute the force along its various sides, so that the force can be stably transmitted between the first inclined rib 142 and the second inclined rib 15, and from the first inclined rib 142 and the second inclined rib 15 to the first foot mounting part 11, the second foot mounting part 12, and the third foot mounting part 13.

[0039] In some implementations, such as Figure 2As shown, several reinforcing rib structures are respectively provided between the first straight plate 141 and the second straight plate 142, between the third straight plate 151 and the fourth straight plate 152, between the second straight plate 142 and the fourth straight plate 152, between the first straight plate 141 and the left side 18 of the base 1, and between the third straight plate 151 and the right side 19 of the base 1. Among them, the reinforcing rib structures provided between the first straight plate 141 and the second straight plate 142 of the first inclined rib 14, and between the third straight plate 151 and the fourth straight plate 152 of the second inclined rib 15, can strengthen the connection strength and stability of the first inclined rib 14 and the second inclined rib 15 from the inside, effectively improve their deformation resistance, and allow the force to be smoothly transmitted and dispersed along the first inclined rib 14 and the second inclined rib 15. A reinforcing rib structure is provided between the second straight plate 142 and the fourth straight plate 152. This enhances the cooperative force-bearing capacity between the first inclined rib 14 and the second inclined rib 15, making the force transmission between them smoother and preventing interruptions or uneven force transmission due to weak connections. This, in turn, improves the integrity and stability of the entire force transmission system within the base 1. Similarly, reinforcing rib structures are provided between the first straight plate 141 and the left side 18 of the base 1, and between the third straight plate 151 and the right side 19 of the base 1. This increases the bonding strength between them, reducing the likelihood of loosening or deformation of the first straight plate 141 and the third straight plate 151 relative to the left or right side 18 of the base 1 when the machine tool is subjected to complex external forces, such as torque or vibration caused by workpiece center of gravity shift. This improves the overall structure and stability of the base 1. Therefore, the multiple reinforcing rib structures located at different positions play a crucial role in enhancing the structural strength of the base 1, strengthening its resistance to deformation, optimizing the internal stress distribution of the base 1, and improving its overall stability and synergy.

[0040] In some implementations, such as Figure 3As shown, the rear side of the base 1 has two protruding ends 9, and two auxiliary legs 8 are included, each fixed to one of the two protruding ends 9. The two protruding ends 9 are local extensions in the overall structure of the base 1, adapted to the installation of the auxiliary legs 8 and the overall force distribution of the base 1. The auxiliary legs 8, fixed to the protruding ends 9 of the base 1, can effectively distribute some of the force transmitted from the moving crossbeam 5 and its load-bearing components to the ground through the protruding ends 9. When the spindle box 7 is performing heavy cutting, the resulting downward vertical force is not only transmitted to the base 1 through the original first column 2 and second column 3 of the machine tool body, but can also be further dispersed through the auxiliary legs, preventing excessive local stress on the base 1 and enhancing the overall load-bearing capacity of the machine tool body. Furthermore, the two auxiliary legs 8 can provide rear support for the moving crossbeam 5, cooperating with the front columns and other structures to reduce vibrations and displacements caused by instability in the machine tool body structure. Meanwhile, the auxiliary support leg 8 is fixed on the protruding end 9 on the rear side of the base 1. This will not affect the normal layout and operating space of the machine tool body, but will make full use of the space on the rear side of the base 1 to achieve effective support function, making the structural layout of the entire machine tool body more compact, orderly and convenient to operate.

[0041] In some implementations, such as Figure 3 As shown, the ends of the two auxiliary legs 8 furthest from the base 1 are provided with fourth foot mounting parts 81. Foot 10 is detachably mounted below the first foot mounting part 11, the second foot mounting part 12, the third foot mounting part 13, and the two fourth foot mounting parts 81. The first foot mounting part 11 is located below the first column 2 and receives the force transmitted from the first column 2; the second foot mounting part 12 is located below the second column 3 and receives the force transmitted from the second column 3; the third foot mounting part 13 is located in the front center of the base 1 and plays a role in balancing the front and rear forces; the two fourth foot mounting parts 81 transmit the force shared by the auxiliary legs. The various foot mounting parts cooperate with each other to construct a complete and reasonable force transmission system, making the machine tool body uniformly and stably subjected to force. Foot 10 is detachably provided below the first foot mounting part 11, the second foot mounting part 12, the third foot mounting part 13, and the two fourth foot mounting parts 81. The foot 10 contacts the ground and plays a role in isolating vibration and buffering, thereby achieving stable support for the machine tool body as a whole. The level of the machine tool body can be adjusted by adjusting the foot 10 to adapt to different ground conditions, which facilitates the installation, maintenance and replacement of the foot 10.

[0042] In some implementations, such as Figure 1As shown, the first column 2, the second column 3, and the fixed crossbeam 4 form a "gate"-shaped structure, creating a stable and open frame capable of withstanding greater external forces, such as cutting forces and inertial forces. These forces are effectively dispersed and transmitted to the base 1 via the first column 2 and the second column 3, enhancing the overall stability of the machine tool under load. One side of the movable crossbeam 5 is located between the first column 2 and the second column 3, while the other side is located at the rear of the first column 2 and the second column 3. This allows the movable crossbeam 5 to utilize the space between the columns for conventional machining operations, and its extension to the rear, in conjunction with other components, enables it to meet specific machining needs and ranges, providing greater flexibility. The spindle box 7 is telescopically mounted within the "gate"-shaped structure, increasing machining accuracy and flexibility. In actual machining, for workpieces of different sizes, shapes, and precision requirements, the extension and retraction of the spindle box 7 allows for precise adjustment of the distance between it and the workpiece, enabling more refined control of the cutting depth and other operations, thus fulfilling diverse machining needs.

[0043] In some implementations, such as Figure 1 and Figure 2 As shown, the first column 2, the second column 3, and the fixed crossbeam 4 are integrally formed, enhancing the overall integrity of the machine tool body structure and facilitating smoother force transmission between components. The base 1, the first column 2, and the second column 3 form a hollow mesh structure inside, effectively reducing the overall weight of the machine tool body. Simultaneously, the rationally arranged hollow mesh structure can distribute forces to various nodes within the base 1, the first column 2, and the second column 3, forming a force-bearing system within the overall frame structure. When subjected to external forces, the hollow mesh structures support each other and work together to resist deformation.

[0044] In another aspect, this utility model also provides a machine tool, including the machine tool body described in any of the above descriptions. A rotary table is provided on the base 1, and a spindle is also provided on the spindle box 7, with the working end of the spindle facing the rotary table. Since this machine tool has the aforementioned gantry machining device, it also has the corresponding effects of the gantry machining device, which will not be described in detail here.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A machine tool body, comprising a base (1), a first column (2) and a second column (3) disposed at the rear of the base (1), and a fixed crossbeam (4) mounted on the upper ends of the first column (2) and the second column (3), wherein a movable crossbeam (5) is also disposed across the first column (2) and the second column (3), a sliding saddle (6) is slidably disposed above the movable crossbeam (5), and a spindle box (7) is slidably disposed above the sliding saddle (6); characterized in that, It also includes an auxiliary support leg (8), the movable crossbeam (5) is movably disposed behind the first column (2) and the second column (3), the auxiliary support leg (8) is fixed to the lower rear part of the base (1) and extends to the rear of the base (1), and the projection of the movable crossbeam (5) on the horizontal plane at least partially overlaps with the projection of the base (1) on the horizontal plane.

2. The machine tool body according to claim 1, characterized in that, The base (1) has a first foot mounting part (11) located below the first column (2) and a second foot mounting part (12) located below the second column (3) at the rear bottom. The base (1) also has a third foot mounting part (13) located at the center of the front bottom. The base (1) has a first inclined rib plate (14) and a second inclined rib plate (15) inside. The first inclined rib plate (14) is located between the first foot mounting part (11) and the third foot mounting part (13), and the second inclined rib plate (15) is located between the second foot mounting part (12) and the third foot mounting part (13).

3. The machine tool body according to claim 2, characterized in that, The base (1) is also provided with a transverse rib (16) inside. The transverse rib (16) is located between the first foot mounting part (11) and the second foot mounting part (12). The first oblique rib (14), the second oblique rib (15) and the transverse rib (16) form a triangular structure.

4. The machine tool body according to claim 3, characterized in that, The first inclined rib (14) includes a first straight plate (141) and a second straight plate (142) arranged in parallel and spaced apart. The second inclined rib (15) includes a third straight plate (151) and a fourth straight plate (152) arranged in parallel and spaced apart. The intersection (17) of the first inclined rib (14) and the second inclined rib (15) is located outside the third foot mounting part (13), and a semi-honeycomb reinforcing rib structure (171) is provided at the intersection (17).

5. The machine tool body according to claim 4, characterized in that, Several reinforcing rib structures are respectively provided between the first straight plate (141) and the second straight plate (142), between the third straight plate (151) and the fourth straight plate (152), between the second straight plate (142) and the fourth straight plate (152), between the first straight plate (141) and the left side (18) of the base (1), and between the third straight plate (151) and the right side (19) of the base (1).

6. The machine tool body according to claim 5, characterized in that, The base (1) has two protruding ends (9) on its rear side, and the auxiliary support legs (8) include two, which are respectively fixed on the two protruding ends (9).

7. The machine tool body according to claim 5, characterized in that, The two auxiliary legs (8) are provided with a fourth foot mounting part (81) at the ends away from the base (1). The first foot mounting part (11), the second foot mounting part (12), the third foot mounting part (13) and the two fourth foot mounting parts (81) are all detachably provided with feet (10).

8. The machine tool body according to any one of claims 1-7, characterized in that, The first column (2), the second column (3) and the fixed crossbeam (4) form a "door" shaped structure. One side of the movable crossbeam (5) is located between the first column (2) and the second column (3), and the other side of the movable crossbeam (5) is located at the rear of the first column (2) and the second column (3). The spindle box (7) is telescopically installed inside the "door" shaped structure.

9. The machine tool body according to any one of claims 1-7, characterized in that, The first column (2), the second column (3) and the fixed crossbeam (4) are integrally formed, and the base (1), the first column (2) and the second column (3) form a hollow mesh structure inside.

10. A machine tool, characterized in that, The machine tool body includes any one of claims 1 to 9, wherein a turntable is provided on the base (1), and a spindle is also provided on the spindle box (7), with the working end of the spindle facing the turntable.

Images