A five-axis cam rotary table

Abstract

This utility model discloses a five-axis cam rotary table, including a base, a clamping platform, a first drive assembly that drives the clamping platform to rotate around a centerline, and a first cradle body and a second cradle body disposed at the left and right ends of the first drive assembly and driving the first drive assembly to swing. The first cradle body and the second cradle body are detachably fixed to both ends of the base. The five-axis cam rotary table also includes multiple connecting adjustment assemblies that fix the base to the working surface. The base is provided with connecting holes, and the connecting adjustment assemblies include connecting columns and adjusting columns. The adjusting columns are disposed in the connecting holes, the lower end of the connecting column is fixedly connected to the base, and the upper end of the connecting column is slidably disposed with the adjusting column. This utility model provides multiple connecting adjustment assemblies between the base and the working surface. The distance between the base and the working surface can be adjusted by the connecting adjustment assemblies. Therefore, when the working surface is uneven, the clamping platform of the five-axis cam rotary table can always be kept horizontal by adjusting the height of the connecting adjustment assemblies.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, specifically to a five-axis cam turntable. Background Technology

[0002] When machining workpieces, a cam turntable mounted on the machine tool frame is usually used to achieve precise movement of the workpiece.

[0003] A rotary table, also known as a slewing table, is a machine tool accessory with a rotatable surface used to clamp workpieces and achieve rotation and indexing positioning. It is often abbreviated as rotary table or fourth axis. Rotary tables can be divided into two categories based on their function: general-purpose rotary tables and precision rotary tables. Most existing rotary tables utilize a worm gear drive structure internally.

[0004] When existing five-axis cam rotary tables are installed on uneven tabletops, the meshing of the roller cams and drive shafts is easily misaligned under the influence of gravity, which affects the machining accuracy of the parts. In addition, the existing five-axis cam rotary tables have a relatively complex structure and slow braking. Utility Model Content

[0005] To solve at least one technical problem of the prior art, this utility model provides a five-axis cam turntable.

[0006] To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: a five-axis cam rotary table, including a base, a clamping table for clamping workpieces, a first drive assembly for driving the clamping table to rotate around a center line, and a first cradle body and a second cradle body disposed at the left and right ends of the first drive assembly and driving the first drive assembly to swing. The first cradle body and the second cradle body are respectively detachably fixed at both ends of the base. The five-axis cam rotary table also includes multiple sets of connecting adjustment assemblies for fixing the base to the working surface. The base is provided with connecting holes. The connecting adjustment assembly includes connecting columns and adjusting columns. The adjusting columns are disposed in the connecting holes. The lower end of the connecting column is fixedly connected to the base, and the upper end of the connecting column is slidably disposed with the adjusting column.

[0007] In some embodiments, the connecting post is provided with external threads, the adjusting post is provided with a first adjusting hole extending along the axial direction, the first adjusting hole is provided with a first internal thread, and the connecting post passes through the first adjusting hole.

[0008] In some embodiments, the connection adjustment assembly further includes a connection cap detachably connected to the adjustment post, the connection cap having a second adjustment hole, and the upper end of the connection post passing through the adjustment post and disposed in the second adjustment hole.

[0009] In some embodiments, at least two positioning plates are fixed to the lower end face of the connecting cap. The positioning plates are arc-shaped plates, and the inner diameter of the positioning plates is equal to the diameter of the first adjustment hole. A positioning protrusion is fixed to the lower end of the positioning plates.

[0010] The adjusting column has at least two axially extending positioning grooves at its upper end. The depth of the positioning grooves is equal to the length of the positioning plate. The adjusting column has a positioning hole penetrating through the adjusting column at the end of the positioning groove. The positioning hole communicates with the positioning groove. The positioning plate is disposed in the positioning groove, and the positioning protrusion is disposed in the positioning hole.

[0011] In some embodiments, the connection adjustment assembly further includes a deformation ring disposed within the connection hole and sleeved on the outside of the adjustment post.

[0012] In some embodiments, the base includes a base plate and two connecting bosses fixed to the two short sides of the base plate and protruding upward from the two short sides of the base plate, and the base plate has a plurality of connecting holes.

[0013] In some embodiments, the clamping platform is arranged parallel above the base plate, and the first driving assembly is disposed between the base plate and the clamping platform. The first driving assembly includes a first motor, a first rotating shaft arranged vertically and connected to the clamping platform, and a first transmission assembly connected between the first motor and the first rotating shaft. The first motor drives the first rotating shaft to rotate axially, thereby causing the clamping platform to rotate.

[0014] In some embodiments, the first drive assembly further includes a first housing, the two opposite ends of which are detachably connected to the first cradle body and the second cradle body respectively via cylindrical crossed roller bearings;

[0015] The first motor, the first transmission assembly, and the first rotating shaft are all housed within the first housing. The upper end of the first rotating shaft protrudes from the upper surface of the first housing and is fixedly connected to the clamping table.

[0016] In some embodiments, the first cradle body and the second cradle body are respectively fixed on the two connecting bosses, the first drive assembly is disposed between the first cradle body and the second cradle body, and the first drive assembly is connected to the first cradle body and the second cradle body respectively through cylindrical crossed roller bearings. The first cradle body includes a first rotating unit and a second motor that drives the first rotating unit to rotate. The first rotating unit includes a first rotating shaft that is horizontally arranged and connected to the first drive assembly. The second motor drives the first rotating shaft to rotate axially, thereby causing the first drive assembly to rotate about the axis of the first rotating shaft.

[0017] In some embodiments, the second cradle body includes a second housing and a sixth bearing assembly. The second housing is fixed to another connecting boss by fasteners. The second housing has a bearing hole at one end facing the first drive assembly. The sixth bearing assembly is installed in the bearing hole and is detachably connected to the first drive assembly. The sixth bearing assembly includes a cylindrical crossed roller bearing.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] This invention features multiple connecting adjustment components between the base and the working surface. These components allow for adjustment of the distance between the base and the working surface. Therefore, when the working surface is uneven, adjusting the height of the connecting adjustment components ensures that the clamping table of the five-axis cam turntable remains level. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the five-axis cam turntable of this utility model;

[0021] Figure 2 This is an exploded view of the components of the connection adjustment assembly of this utility model;

[0022] Figure 3 This is a cross-sectional view of the concealed cover of the five-axis cam turntable of this utility model. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 3This disclosure provides a five-axis cam rotary table, including a base 1, a clamping table 2 for clamping workpieces, a first drive assembly 3 for driving the clamping table 2 to rotate around a centerline, and a first cradle body 5 and a second cradle body 6 disposed at the left and right ends of the first drive assembly 3 and driving the first drive assembly 3 to swing. The first cradle body 5 and the second cradle body 6 are respectively detachably fixed to the two ends of the base 1. The five-axis cam rotary table also includes multiple sets of connecting adjustment assemblies 7 for fixing the base 1 to the working surface. The base 1 is provided with connecting holes. The connecting adjustment assembly 7 includes a connecting column 74 and an adjusting column 73. The adjusting column 73 is disposed in the connecting hole. The lower end of the connecting column 74 is fixedly connected to the base 1, and the upper end of the connecting column 74 is slidably disposed with the adjusting column 73. By adjusting the relative position of the connecting column 74 and the adjusting column 73, the distance between the base 1 and the working surface can be adjusted. Therefore, when the working surface is uneven, the clamping table 2 of the five-axis cam rotary table can always be kept horizontal by adjusting the height of the connecting adjustment assembly 7.

[0030] In some embodiments, the connecting post 74 is threadedly connected to the adjusting post 73. By rotating the adjusting post 73, the overall height of the connecting adjusting assembly 7 can be adjusted, thereby adjusting the distance between the base 1 and the working surface.

[0031] Specifically, the connecting post 74 is provided with an external thread, the adjusting post 73 is provided with a first adjusting hole 733 extending along the axial direction, the first adjusting hole 733 is provided with a first internal thread 734, and the connecting post 74 passes through the first adjusting hole 733 and is threadedly connected to the adjusting post 73.

[0032] Furthermore, the adjusting column 73 includes an adjusting knob 732 and a connecting cylinder 731 connected as one piece. The connecting cylinder 731 is fixed to the upper surface of the adjusting knob 732. The first adjusting hole 733 mentioned above is provided inside the adjusting knob 732 and the connecting cylinder 731. The connecting cylinder 731 is rotatably disposed in the connecting hole. The adjusting knob 732 is disposed below the connecting edge 21. The size of the adjusting knob 732 is larger than the inner diameter of the connecting hole. The base 1 is supported by the adjusting knob 732.

[0033] In some embodiments, the connection adjustment assembly 7 further includes a connection cap 71 detachably connected to the adjustment post 73, the connection cap 71 being provided with a second adjustment hole 714, and the upper end of the connection post 74 passing through the adjustment post 73 and disposed in the second adjustment hole 714.

[0034] In some embodiments, at least two positioning plates 712 are fixed to the lower end face of the connecting cap 71. The positioning plates 712 are arc-shaped plates, and the inner diameter of the positioning plates 712 is equal to the diameter of the first adjusting hole 733. A positioning protrusion 713 is fixed to the lower end of the positioning plates 712. The adjusting column 73 has at least two axially extending positioning grooves 736 at its upper end. The depth of the positioning grooves 736 is equal to the length of the positioning plates 712. The adjusting column 73 has a positioning hole 735 penetrating the adjusting column 73 at the end of the positioning grooves 736. The positioning hole 735 communicates with the positioning grooves 736. The positioning plates 712 are disposed in the positioning grooves 736, and the positioning protrusions 713 are disposed in the positioning holes 735.

[0035] In some embodiments, the connecting adjustment assembly 7 further includes a deformation ring 72, which is disposed within the connecting hole and sleeved on the outside of the adjusting post 73. By providing the deformation ring 72, when adjusting one adjusting post 73 individually causes the connecting post 74 to tilt relative to the base 1, the deformation ring 72 is compressed, thereby reducing obstruction to the threaded engagement between the remaining sets of adjusting posts 73 and connecting posts 74.

[0036] In some embodiments, the base 1 is used to fix the five-axis cam rotary table on the working surface. The base 1 includes a square base plate and two connecting bosses fixed to the two short sides of the base plate and protruding upward from the two short sides of the base plate. The two connecting bosses and the base plate form a base with a "U" shaped cross-section. Multiple connecting holes are provided on the base plate.

[0037] Furthermore, the base plate is provided with 6 connection holes, meaning the five-axis cam rotary table is provided with 6 sets of connection adjustment components 7, which are symmetrically arranged. In other embodiments, the five-axis cam rotary table may also be provided with four, eight, or other numbers of connection adjustment components 7.

[0038] In some embodiments, the clamping table 2 is used to limit and fix the workpiece to be processed, so as to facilitate the processing of the workpiece. The clamping table 2 is arranged parallel above the base plate. The upper surface of the clamping table 2 is provided with a plurality of downwardly recessed T-slots 20. A positioning component (not shown) is provided in the T-slots 20, and the positioning component fixes the workpiece to be processed on the clamping table 2. The clamping table 2 is also provided with a plurality of limiting holes, which are located inside the plurality of T-slots 20. When the bottom of the workpiece to be processed is provided with a connecting hole, the workpiece to be processed is fixed on the clamping table 2 by fasteners.

[0039] In some embodiments, the first drive assembly 3 is disposed between the base plate and the clamping platform 2. The first drive assembly 3 includes a first housing 30 detachably connected to the first cradle body 5 and the second cradle body 6, a first rotating shaft 31 disposed within the first housing 30 and protruding from the upper end of the first housing 30, a first motor 32 disposed within the first housing 30, and a first transmission assembly 33 disposed within the first housing 30. The top end of the first rotating shaft 31 is fixedly connected to the clamping platform 2. The first transmission assembly 33 is connected to both the first motor 32 and the first rotating shaft 31. The first motor 32 drives the first transmission assembly 33 to rotate, which in turn drives the first rotating shaft 31 to rotate, thereby driving the clamping platform 2 to rotate around its centerline.

[0040] In some embodiments, a first transmission assembly 33 includes a first roller cam fixedly sleeved on a first rotating shaft 31, a first transmission shaft vertically arranged and meshing with the first roller cam, a first driving wheel fixed on the output shaft of a first motor 32, a first driven wheel fixed on the first transmission shaft, and a first synchronous belt connecting the first driving wheel and the first driven wheel. The first roller cam is circumferentially spaced with multiple first needle roller bearings, and the first transmission shaft has a first meshing part that meshes with the multiple first needle roller bearings. Transmission between the first transmission shaft and the first roller cam is achieved through the meshing of the first meshing part with the multiple first needle roller bearings. Preferably, the first transmission shaft is a worm gear.

[0041] In some embodiments, the first drive assembly 3 further includes a first brake assembly 34, which is disposed within the first housing 30 to block the rotation of the first roller cam 331, so that the first roller cam 331 will not continue to rotate due to inertia after it stops rotating, making its adjustment and positioning angle more precise and stable.

[0042] In some embodiments, the first cradle body 5 and the second cradle body 6 are respectively fixed on two connecting bosses, and the first drive assembly 3 is disposed between the first cradle body 5 and the second cradle body 6. The first drive assembly 3 is connected to the first cradle body 5 and the second cradle body 6 respectively through cylindrical crossed roller bearings.

[0043] The first cradle body 5 includes a main housing 50 detachably fixed to one end of the base 1, a first rotating unit 51 disposed within the main housing 50 and connected to the first driving assembly 3 to drive the first driving assembly 3 to swing back and forth, a motor housing 52 detachably fixed to the main housing 50, and a second motor disposed within the motor housing 52 and connected to the first rotating unit 51 to drive the first rotating unit 51 to rotate. The first rotating unit 51 includes a first rotating shaft 510 horizontally disposed and connected to the first driving assembly 3, and the second motor drives the first rotating shaft 510 to rotate axially, thereby causing the first driving assembly 3 to swing back and forth.

[0044] The first cradle body 5 also includes a second brake assembly 54, which is located inside the main housing 50 and is used to block the rotation of the second roller cam 511, so that the second roller cam 511 will not continue to rotate due to inertia after it stops rotating, making its adjustment and positioning angle more precise and stable.

[0045] In some embodiments, the second cradle body 6 includes a housing 60 detachably fixed to the other end of the base 1 and a sixth bearing assembly 61 installed within the housing 60. A bearing hole is provided at the end of the housing 60 facing the first drive assembly 3, and the sixth bearing assembly 61 is installed within the bearing hole and detachably connected to the first drive assembly 3. Specifically, the sixth bearing assembly 61 includes a cylindrical crossed roller bearing, which is detachably connected to the first drive assembly 3 by screws.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A five-axis cam rotary table, characterized in that, The five-axis cam rotary table includes a base (1), a clamping table (2) for clamping workpieces, a first drive assembly (3) for driving the clamping table (2) to rotate around a center line, and a first cradle body (5) and a second cradle body (6) disposed at the left and right ends of the first drive assembly (3) and driving the first drive assembly (3) to swing. The first cradle body (5) and the second cradle body (6) are respectively detachably fixed at both ends of the base (1). The five-axis cam rotary table also includes multiple sets of connecting adjustment assemblies (7) for fixing the base (1) on the working surface. The base (1) is provided with a connecting hole. The connecting adjustment assembly (7) includes a connecting column (74) and an adjusting column (73). The adjusting column (73) is disposed in the connecting hole. The lower end of the connecting column (74) is fixedly connected to the base (1), and the upper end of the connecting column (74) is slidably disposed with the adjusting column (73).

2. The five-axis cam rotary table as described in claim 1, characterized in that, The connecting post (74) is provided with an external thread, and the adjusting post (73) is provided with a first adjusting hole (733) extending along the axial direction. The first adjusting hole (733) is provided with a first internal thread (734), and the connecting post (74) passes through the first adjusting hole (733).

3. The five-axis cam rotary table as described in claim 2, characterized in that, The connection adjustment assembly (7) further includes a connection cap (71) detachably connected to the adjustment post (73), the connection cap (71) being provided with a second adjustment hole (714), and the upper end of the connection post (74) passing through the adjustment post (73) and disposed in the second adjustment hole (714).

4. The five-axis cam rotary table as described in claim 3, characterized in that, At least two positioning plates (712) are fixed on the lower end face of the connecting cap (71). The positioning plate (712) is an arc-shaped plate. The inner diameter of the positioning plate (712) is equal to the diameter of the first adjusting hole (733). A positioning protrusion (713) is fixed on the lower end of the positioning plate (712). The adjusting column (73) has at least two axially extending positioning grooves (736) at its upper end. The depth of the positioning grooves (736) is equal to the length of the positioning plate (712). The adjusting column (73) has a positioning hole (735) penetrating through the positioning grooves (736) at the end of the positioning grooves (736). The positioning hole (735) communicates with the positioning grooves (736). The positioning plate (712) is disposed in the positioning grooves (736), and the positioning protrusion (713) is disposed in the positioning hole (735).

5. The five-axis cam rotary table as described in claim 1, characterized in that, The connection adjustment assembly (7) further includes a deformation ring (72), which is disposed in the connection hole and sleeved on the outside of the adjustment post (73).

6. The five-axis cam rotary table as described in any one of claims 1 to 5, characterized in that, The base (1) includes a base plate and two connecting bosses fixed to the two short sides of the base plate and protruding upward from the two short sides of the base plate. The base plate is provided with a plurality of connecting holes.

7. The five-axis cam rotary table as described in claim 6, characterized in that, The clamping platform (2) is arranged parallel above the base plate. The first drive assembly (3) is arranged between the base plate and the clamping platform (2). The first drive assembly (3) includes a first motor (32), a first rotating shaft (31) arranged vertically and connected to the clamping platform (2), and a first transmission assembly (33) connected between the first motor (32) and the first rotating shaft (31). The first motor (32) drives the first rotating shaft (31) to rotate axially, thereby driving the clamping platform (2) to rotate.

8. The five-axis cam rotary table as described in claim 7, characterized in that, The first drive assembly (3) further includes a first housing (30), the two opposite ends of the first housing (30) being detachably connected to the first cradle body (5) and the second cradle body (6) respectively by cylindrical crossed roller bearings; The first motor (32), the first transmission assembly (33) and the first rotating shaft (31) are all disposed inside the first housing (30). The upper end of the first rotating shaft (31) protrudes from the upper surface of the first housing (30) and is fixedly connected to the clamping table (2).

9. The five-axis cam rotary table as described in claim 6, characterized in that, The first cradle body (5) and the second cradle body (6) are respectively fixed on the two connecting bosses. The first drive assembly (3) is disposed between the first cradle body (5) and the second cradle body (6). The first drive assembly (3) is connected to the first cradle body (5) and the second cradle body (6) respectively through cylindrical crossed roller bearings. The first cradle body (5) includes a first rotating unit (51) and a second motor that drives the first rotating unit (51) to rotate. The first rotating unit (51) includes a first rotating shaft (510) that is horizontally arranged and connected to the first drive assembly (3). The second motor drives the first rotating shaft (510) to rotate axially, thereby causing the first drive assembly (3) to rotate about the axis of the first rotating shaft (510).

10. The five-axis cam rotary table as described in claim 6, characterized in that, The second cradle body (6) includes a second housing (60) and a sixth bearing assembly (61). The second housing (60) is fixed to another connecting boss by fasteners. The second housing (60) has a bearing hole at one end facing the first drive assembly (3). The sixth bearing assembly (61) is installed in the bearing hole and is detachably connected to the first drive assembly (3). The sixth bearing assembly (61) includes a cylindrical crossed roller bearing.

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