Lathe bed and machine tool

Abstract

The utility model relates to the field of machine tools, in particular to a lathe bed and a machine tool, the lathe bed comprises a lathe body, the lathe body comprises a base, a first bed plate and a second bed plate, and the first bed plate and the second bed plate are arranged on the two sides of the base and correspondingly provided with a first bearing structure and a second bearing structure. The first bearing structure and the second bearing structure are used for correspondingly bearing the two ends of the cradle rotary table, the first bearing structure and the second bearing structure are arranged to be installation grooves with openings, and when the cradle rotary table is installed, the two ends of the cradle rotary table are directly and correspondingly placed into the first bearing structure and the second bearing structure from the openings of the installation grooves. The first bearing structure and the second bearing structure enable the cradle rotary table to be installed very conveniently, the two ends of the cradle rotary table do not need to correspond to the first bearing structure and the second bearing structure for shaft alignment, and the convenience degree of installing the cradle rotary table on a machine tool is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a bed and a machine tool. Background Art

[0002] The cradle turntable is a special turntable design, mainly used in five-axis linkage CNC machine tools to improve processing accuracy and production efficiency. The main method of installing the existing cradle turntable 100 on the machine tool is: two shaft holes 200 for carrying the cradle turntable 100 are set on the machine bed, one turntable shaft 101 of the cradle turntable 100 is inserted into one shaft hole 200, and the other turntable shaft 101 of the cradle turntable 100 is inserted into the other shaft hole 200, thereby installing the cradle turntable 100 on the bed. Figure 1 and Figure 2 .

[0003] But this kind of arrangement is used to install the axle hole of cradle turntable 100, and cradle turntable 100 needs to align the axles when installing, making the installation of cradle turntable 100 extremely inconvenient. Therefore, the mounting structure of cradle turntable 100 needs to be improved, so that the installation of cradle turntable 100 is easier. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present utility model is to provide a machine tool and a machine bed thereof to solve the technical problem of the inconvenience of installing the existing cradle turntable.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The present invention provides a bed frame including a bed body, wherein the bed body includes a base and a first bed board and a second bed board arranged on both sides of the base, wherein the base, the first bed board and the second bed board form an installation space, and the front of the installation space is an open space, wherein the first bed board is provided with a first bearing structure for supporting one end of a cradle turntable, and the second bed board is provided with a second bearing structure for supporting the other end of the cradle turntable;

[0007] The first supporting structure and the second supporting structure are configured as mounting grooves with openings, wherein the openings face the open space and are used for the cradle turntable to be mounted from the openings into the mounting grooves of the first supporting structure and the second supporting structure.

[0008] In some embodiments, the mounting groove is an arc-shaped structure, and the mounting grooves on the first bearing structure and the second bearing structure are coaxially arranged.

[0009] In some embodiments, the mounting groove is a semicircular structure, and the opening of the mounting groove faces the horizontal direction; or, the opening of the mounting groove is inclined upward.

[0010] In some embodiments, the bed body further includes a rear sealing plate, the base, the first bed board, the second bed board and the rear sealing plate are integrally cast, and the rear sealing plate is tilted.

[0011] In some embodiments, a positioning structure is further included, which includes a positioning block and a positioning pin. One side of the positioning block is used to connect to the cradle axis of the cradle turntable, and the other side of the positioning block is connected to the first bed board or the second bed board of the bed body. The positioning pin is inserted into the first bed board or the second bed board from one side of the positioning structure to position the cradle axis.

[0012] In some embodiments, avoidance spaces are provided on both the upper and lower sides of the opening to facilitate the placement of the cradle turntable into the installation slot through the opening.

[0013] In some embodiments, a fastening structure is further included, and a fastening hole is provided on the positioning block. The fastening structure is inserted into the first bed board or the second bed board through the fastening hole for fastening.

[0014] In some embodiments, a shield structure is further included, which includes a first connecting end, a second connecting end and an arch structure. The first connecting end is rotatably connected to the lower side of the mounting slot, and the second connecting end is connected to the upper side of the mounting slot through the rotation of the shield structure; the arch structure is located between the first connecting end and the second connecting end.

[0015] In some embodiments, the shield structures include two shield structures, and the two shield structures respectively cover the mounting slot of the first supporting structure and the mounting slot of the second supporting structure.

[0016] On the other hand, the present invention further provides a machine tool, comprising a cradle turntable and a bed as described above, wherein the cradle turntable is mounted on the bed.

[0017] The beneficial effects of the present invention are mainly as follows: a first bearing structure and a second bearing structure are provided on the bed, and the first bearing structure and the second bearing structure are used to support the two ends of the cradle turntable. The first bearing structure and the second bearing structure are provided as mounting grooves with openings. When installing the cradle turntable, the two ends of the cradle turntable can be directly placed into the first bearing structure and the second bearing structure through the openings of the mounting grooves. The first bearing structure and the second bearing structure make the installation of the cradle turntable extremely convenient, and there is no need to align the two ends of the cradle turntable with the first bearing structure and the second bearing structure, which greatly improves the convenience of installing the cradle turntable on the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 It is a structural diagram of the prior art;

[0020] Figure 2 It is another structural diagram of the prior art;

[0021] Figure 3 It is a structural diagram of the bed of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the inclined opening of the installation slot of the utility model;

[0023] Figure 5 It is a schematic diagram of the shield structure of the utility model;

[0024] Figure 6 It is a structural diagram of the machine tool of the present utility model.

[0025] Attachment Figure 1-2 Middle: 100-cradle turntable, 101-turntable shaft, 200-shaft hole

[0026] Attachment Figure 3-6 Middle: 1-bed body, 2-base, 3-first bed board, 4-second bed board, 5-first bearing structure, 6-second bearing structure, 7-positioning structure, 71-positioning block, 72-positioning pin, 8-avoidance space, 9-fastening structure, 10-shield structure, 101-first connecting end, 102-second connecting end, 103-arch structure, 11-rear sealing plate, 12-cradle turntable, 13-cradle axis. DETAILED DESCRIPTION

[0027] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] refer to Figure 3 and Figure 4 The first aspect of the embodiment of the present invention provides a bed frame, including a bed body 1, wherein the bed body 1 includes a base 2 and a first bed board 3 and a second bed board 4 arranged on both sides of the base.2 The first bed plate 3 and the second bed plate 4 form an installation space for placing a turntable on the machine tool, such as a cradle turntable 12 , the installation space can also be used to place workpieces that need to be processed. The front of the installation space is an open space. The setting of the open space can facilitate the installation of the turntable and the placement of workpieces. At the same time, in the bed of this embodiment, the first bed board 3 is provided with a first bearing structure 5 for supporting one side of the cradle turntable 12, and the second bed board 4 is provided with a second bearing structure 6 for supporting the other side of the cradle turntable 12; wherein, the first bearing structure 5 and the second bearing structure 6 are provided as mounting grooves with openings, the openings facing the open space and used for the cradle turntable 12 to be installed from the openings into the mounting grooves of the first bearing structure 5 and the second bearing structure 6.

[0029] The present invention is provided with a first bearing structure 5 and a second bearing structure 6 on the bed body 1, and the first bearing structure 5 and the second bearing structure 6 are used to correspondingly support the two ends of the cradle turntable 12. The first bearing structure 5 and the second bearing structure 6 are set as mounting grooves with openings, and the openings are facing the open space. When installing the cradle turntable 12, the two ends of the cradle turntable 12 can be directly placed into the first bearing structure 5 and the second bearing structure 6 from the openings of the mounting grooves through the open space. Such first bearing structure 5 and second bearing structure 6 make the installation of the cradle turntable 12 extremely convenient, and there is no need to align the two ends of the cradle turntable 12 with the first bearing structure 5 and the second bearing structure 6, which greatly improves the convenience of installing the cradle turntable 12 on the machine tool.

[0030] In some embodiments, reference Figure 3 The mounting grooves of the first supporting structure 5 and the second supporting structure 6 are both arc-shaped. Specifically, the arc-shaped mounting grooves (including the mounting grooves of the first supporting structure 5 and the second supporting structure 6) are adapted to adapt to the cradle axis 13 of the cradle turntable 12; and the mounting grooves of the first supporting structure 5 and the second supporting structure 6 are coaxially arranged to ensure the precise installation and rotation accuracy of the cradle turntable 12.

[0031] For further reference, Figure 3 The mounting groove is a semicircular structure, and the opening of the mounting groove faces the horizontal direction. The opening arranged in the horizontal direction facilitates the cradle turntable 12 to be placed directly into the first supporting structure 5 and the second supporting structure 6 from one side of the opening direction along the horizontal direction, which makes installation more convenient.

[0032] In some embodiments, in order to improve the effect of the bearing structure (including the first bearing structure 5 and the second bearing structure 6) on the cradle turntable 12, reference is made to Figure 4The opening of the mounting slot is tilted upward, and the angle of the opening can be set according to actual conditions, for example, at an angle of 30, 45, or 60 degrees. This arrangement allows the cradle turntable 12 to be placed directly into the mounting slot of the support structure from approximately the upper side of the support structure. Due to the supporting effect of the mounting slot, the installation and fixation of the cradle turntable 12 is more convenient. The mounting slot opening can be arranged horizontally or upwardly, and can be adapted as needed to meet different installation requirements.

[0033] In some embodiments, reference Figure 3 and Figure 4 The bed body also includes a rear cover 11, the base 2 The first bed board 3, the second bed board 4 and the rear cover 11 are integrally cast, and the rear cover 11 is tilted. 2 The first bed board 3, the second bed board 4 and the rear cover plate 11 together enclose the above-mentioned installation space. The one-piece cast bed body 1 makes the structure of the bed body more stable. The setting of the rear cover plate 11 can further enhance the strength of the entire bed body 1, thereby improving the accuracy of machine tool processing.

[0034] In some embodiments, reference Figure 3 and Figure 6 The bed frame also includes a positioning structure 7, which includes a positioning block 71 and a positioning pin 72. One side of the positioning block 71 is used to connect with the cradle shaft 13 of the cradle turntable 12, and the other side of the positioning block 71 is connected to the first bed board 3 or the second bed board 4 of the bed body. The positioning pin 72 is inserted from one side of the positioning block 71 into the first bed board 3 or the second bed board 4. Specifically, a positioning hole is provided on the upper side of the supporting structure, and a positioning hole is provided on the positioning block 71. The positioning block 71 is provided on the cradle shaft 13. When the cradle shaft 13 is installed on the supporting structure, the positioning hole on the positioning block 71 is aligned with the positioning hole on the supporting structure. The positioning pin 72 is inserted from the positioning hole on the positioning block 71 into the positioning hole of the supporting structure to position the cradle turntable 12 on the supporting structure, so that the position of the cradle turntable 12 and the bed body 1 is relatively fixed. The positioning structure 7 plays the role of positioning the cradle shaft 13.

[0035] Furthermore, the bed frame also includes a fastening structure 9, and fastening holes are provided on the positioning block 71, the first bed board 3, and the second bed board 4. After the positions of the cradle turntable 12 and the bed body 1 are relatively fixed, the fastening structure 9 is used to insert from the fastening hole into the fastening hole of the first bed board 3 or the second bed board 4, thereby fixing the cradle turntable 12 on the supporting structure.

[0036] In some embodiments, reference Figure 3 and Figure 6The mounting slot has escape spaces 8 on both the upper and lower sides of the opening to facilitate placement of the cradle turntable 12 into the mounting slot through the opening. This escape space 8 increases the distance between the upper and lower ends of the mounting slot opening, thereby reducing collisions with the upper and lower ends of the opening structure when the cradle turntable 12 is installed into the mounting slot of the support structure, thereby facilitating installation of the cradle turntable 12. Specifically, the escape structure can be chamfered corners on the upper and lower sides of the mounting slot opening, with the escape spaces 8 formed by the provision of these chamfered corners.

[0037] In some embodiments, reference Figure 3 and Figure 5 The bed body also includes a shield structure 10, which includes a first connecting end 101, a second connecting end 102 and an arch structure 103. The arch structure 103 is located between the first connecting end 101 and the second connecting end 102. Preferably, the arch structure 103 is an arc-shaped or semicircular structure adapted to the cradle axis 13. The first connecting end 101 is rotatably connected to the lower side of the opening of the mounting groove, and the second connecting end 102 is connected to the upper side of the opening of the mounting groove by rotating the shield structure 10. In actual use, when the cradle turntable 12 is not installed, the shield structure 10 is in an open state; when the cradle turntable 12 is installed on the bearing structure, the shield structure 10 is rotated so that the second connecting end 102 is located on the upper side of the opening of the mounting groove, and the second connecting end 102 can be connected to the upper side of the opening of the mounting groove by fasteners such as bolts or screws, thereby fixing the shield structure 10. After the shield structure 10 rotates, it forms a cylindrical installation space with the installation groove. The cradle shaft 13 is located in the installation space. The shield structure 10 covers the cradle shaft 13 to fasten and protect the cradle shaft 13.

[0038] Furthermore, the protective shield structures 10 include two, one for covering the opening of the first supporting structure 5 and the other for covering the opening of the second supporting structure 6. That is, a protective shield structure 10 is provided on each supporting structure to cover the opening, thereby protecting the cradle shafts 13 on both sides of the cradle turntable 12. To disassemble the cradle turntable 12, the fastener connecting the second connecting end 102 to the upper side of the opening of the mounting slot is removed, and the protective shield structure 10 is then rotated to return it to its original position. The cradle turntable 12 can then be removed from the supporting structure.

[0039] refer to Figure 3 and Figure 6A second aspect of the present invention provides a machine tool, comprising any one of the above-described bed bodies 1, wherein the cradle shafts 13 on both sides of the cradle turntable 12 are correspondingly mounted on the first supporting structure 5 and the second supporting structure 6. The machine tool of the present application, by providing the first supporting structure 5 and the second supporting structure 6 with openings, makes the installation of the cradle turntable 12 extremely convenient, thereby improving production efficiency.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A bed frame, comprising a bed body (1), wherein the bed body (1) comprises a base (2) and a first bed board (3) and a second bed board (4) arranged on both sides of the base (2), wherein the base (2), the first bed board (3) and the second bed board (4) form an installation space, and the front of the installation space is an open space, characterized in that: The first bed board (3) is provided with a first bearing structure (5) for bearing one end of the cradle turntable (12), and the second bed board (4) is provided with a second bearing structure (6) for bearing the other end of the cradle turntable (12); The first bearing structure (5) and the second bearing structure (6) are configured as mounting grooves with openings, wherein the openings face the open space and are used for mounting the cradle turntable (12) from the openings into the mounting grooves of the first bearing structure (5) and the second bearing structure (6).

2. The bed according to claim 1, characterized in that: The mounting groove is an arc-shaped structure, and the mounting grooves on the first bearing structure (5) and the second bearing structure (6) are coaxially arranged.

3. The bed according to claim 2, characterized in that: The mounting groove is a semicircular structure, and the opening of the mounting groove faces the horizontal direction; or, the opening of the mounting groove is inclined upward.

4. The bed according to claim 1, characterized in that: The bed body (1) further comprises a rear sealing plate, the base (2), the first bed board (3), the second bed board (4) and the rear sealing plate (11) are integrally cast, and the rear sealing plate is arranged at an angle.

5. The bed according to any one of claims 1 to 4, characterized in that: The invention also includes a positioning structure (7), wherein the positioning structure (7) includes a positioning block (71) and a positioning pin (72), one side of the positioning block (71) is used to connect with the cradle shaft (13) of the cradle turntable (12), and the other side of the positioning block (71) is connected with the first bed board (3) or the second bed board (4) of the bed body (1), and the positioning pin (72) is inserted from one side of the positioning structure (7) into the first bed board (3) or the second bed board (4) to position the cradle shaft (13).

6. The bed according to claim 5, characterized in that: Avoidance spaces (8) are provided on both upper and lower sides of the opening to facilitate the cradle turntable (12) to be placed into the installation groove from the opening.

7. The bed according to claim 5, characterized in that: It also includes a fastening structure (9), and a fastening hole is provided on the positioning block (71). The fastening structure (9) is inserted into the first bed board (3) or the second bed board (4) through the fastening hole for fastening.

8. The bed according to claim 5, characterized in that: The invention also includes a shield structure (10), wherein the shield structure (10) includes a first connecting end (101), a second connecting end (102) and an arch structure (103), wherein the first connecting end (101) is rotatably connected to the lower side of the installation slot, and the second connecting end (102) is connected to the upper side of the installation slot through the rotation of the shield structure (10); and the arch structure (103) is located between the first connecting end (101) and the second connecting end (102).

9. The bed according to claim 8, characterized in that: The shield structures (10) include two shield structures (10), and the two shield structures (10) respectively cover the installation slot of the first bearing structure (5) and the installation slot of the second bearing structure (6).

10. A machine tool comprising a cradle turntable (12), characterized in that: The invention comprises a bed frame according to any one of claims 1 to 9, wherein the cradle turntable (12) is installed on the bed frame.

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