Numerical control rotary table and numerical control machine tool

Abstract

The utility model relates to the technical field of machining and provides a numerical control rotary table and a numerical control machine tool, and the numerical control rotary table comprises a supporting carrier, a first rotary table assembly, a second rotary table assembly and a supporting assembly. The first rotary table assembly and the second rotary table assembly are oppositely arranged at the positions, close to the two ends, of the supporting carrier, each of the first rotary table assembly and the second rotary table assembly comprises a driving part, a bridge plate and a workbench, the driving parts are arranged on the supporting carrier, the bridge plates are arranged at the output ends of the driving parts and suitable for rotating along with the driving parts, and the workbenches are rotationally arranged on the bridge plates. The supporting assembly is arranged on the supporting carrier, located between the bridge plate of the first rotary table assembly and the bridge plate of the second rotary table assembly and used for supporting the bridge plates of the first rotary table assembly and the second rotary table assembly. The supporting assemblies are arranged on the supporting carrier, so that the two ends of the bridge plates of the first rotary table assembly and the second rotary table assembly can be supported, the stability of the bridge plates can be improved, and the problem that the bridge plates deform when corresponding workbenches are stressed can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a numerical control turntable and a numerical control machine tool. Background Art

[0002] The CNC turntable is a key component of five-axis CNC machine tools. The accuracy and performance of the CNC turntable directly affect the processing quality and efficiency. However, optimizing the parts processing technology and using high-speed processing methods to improve the processing efficiency and quality of CNC machine tools can no longer meet current processing requirements.

[0003] To address this issue, related technologies offer CNC turntables with two or more work platforms. However, these solutions are simply a superposition of single-station solutions, resulting in smaller worktable diameters and a closer center-to-center distance between the two platforms. Further increasing the size of the worktables would increase the weight of the turntable bridge, leading to increased deformation during machining, which could affect machining quality. Utility Model Content

[0004] The first aspect of the present invention provides a CNC turntable to solve the above-mentioned technical defects in the prior art. A support assembly is arranged between the bridge plate of the first turntable assembly and the bridge plate of the second turntable assembly so that both ends of the bridge plates of the first turntable assembly and the second turntable assembly are supported, thereby improving the stability of each bridge plate and avoiding deformation of the bridge plate when the workbench is subjected to force, thereby ensuring processing accuracy.

[0005] A second aspect of the present invention provides a numerically controlled machine tool.

[0006] A first aspect of the utility model provides a numerically controlled turntable, comprising a support carrier, a first turntable assembly, a second turntable assembly and a support assembly.

[0007] The first turntable assembly and the second turntable assembly are relatively arranged at positions near the two ends of the supporting carrier. The first turntable assembly and the second turntable assembly both include a driving member, a bridge plate and a workbench. The driving member is arranged on the supporting carrier, the bridge plate is arranged at the output end of the driving member and is suitable for rotating with the driving member, and the workbench is rotatably arranged on the bridge plate.

[0008] The support assembly is provided on the support carrier and is located between the bridge plate of the first turntable assembly and the bridge plate of the second turntable assembly, and is used for supporting the bridge plates of the first turntable assembly and the second turntable assembly.

[0009] The numerical control turntable provided in the embodiment of the present utility model, the support assembly includes:

[0010] A supporting body, provided on the supporting carrier, with a mounting position provided on the supporting body;

[0011] a support shaft, passing through the mounting position, one end of the support shaft being connected to the bridge plate of the first turntable assembly, and the other end of the support shaft being connected to the bridge plate of the second turntable assembly;

[0012] A transmission member is provided between the support shaft and the inner wall of the installation position, and the transmission member is used for supporting the support shaft to rotate at the installation position.

[0013] In the numerically controlled turntable provided by the embodiment of the present utility model, the transmission member includes any one of a bearing and a bushing.

[0014] In the CNC turntable provided by an embodiment of the present invention, the support shaft is integrally formed with the bridge plates of the first turntable assembly and the second turntable assembly respectively, and the transmission member includes a bearing, which is wrapped around the outside of the support shaft.

[0015] In the CNC turntable provided by an embodiment of the present invention, the support shaft is detachably connected to the bridge plates of the first turntable assembly and the second turntable assembly respectively, and the transmission member includes a bearing, and the bearing is sleeved on the support shaft.

[0016] The CNC turntable provided by an embodiment of the present invention has two mounting supports and a support portion provided on the upper surface of the support carrier, the two mounting supports are located near the two ends of the support carrier, the driving parts of the first turntable assembly and the second turntable assembly are provided on the corresponding mounting supports; the support portion is located in the middle of the two relatively arranged mounting supports, and the support assembly is provided on the support portion; an avoidance space is formed between the mounting supports and the support portion.

[0017] In the numerically controlled turntable provided by an embodiment of the present invention, a cushion block is provided on the support portion, and the support assembly is provided on the cushion block.

[0018] A second aspect of the present invention provides a CNC machine tool, comprising a machine tool body and any one of the CNC turntables described above, wherein the CNC turntable is arranged on the machine tool body.

[0019] The CNC turntable provided by the present invention relatively arranges the first turntable assembly and the second turntable assembly at positions near both ends of a support carrier, and arranges a support assembly on the support carrier so that the support assembly is located between the bridge plate of the first turntable assembly and the bridge plate of the second turntable assembly, and is used to support the bridge plates of the first turntable assembly and the second turntable assembly. In this arrangement, by arranging the support assembly between the bridge plate of the first turntable assembly and the bridge plate of the second turntable assembly, both ends of the bridge plates of the first turntable assembly and the second turntable assembly are supported, which can improve the stability of each bridge plate and avoid deformation of the bridge plate when the worktable is subjected to force, thereby ensuring processing accuracy; at the same time, the arrangement of the support assembly can increase the center distance between the two worktables, thereby effectively solving the problem of mutual influence during processing of small-pitch dual C-axis turntables.

[0020] The CNC machine tool provided by the embodiment of the present invention has all the above advantages because it includes the above-mentioned CNC turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a CNC turntable provided in an embodiment of the utility model.

[0023] Figure 2 This is a schematic diagram of the structural decomposition of an embodiment of a CNC turntable provided by an embodiment of the utility model.

[0024] Figure 3 This is a schematic diagram of the structural decomposition of another embodiment of the CNC turntable provided by the embodiment of the utility model.

[0025] Reference numerals:

[0026] 100, support carrier; 110, mounting bracket; 120, support portion; 130, avoidance space; 140, pad;

[0027] 200, first turntable assembly; 210, driving member; 220, bridge plate; 230, workbench;

[0028] 300, second turntable assembly;

[0029] 400, support assembly; 410, support body; 411, mounting position; 412, base; 413, cover; 420, support shaft; 430, transmission member. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0032] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0034] Figure 1 It is a structural schematic diagram of a CNC turntable provided in an embodiment of the utility model.

[0035] See Figure 1The present invention provides a CNC turntable that can be used for five-axis CNC machine tools, as well as CNC machine tools with similar processing requirements. The CNC turntable includes a support carrier 100, a first turntable assembly 200, a second turntable assembly 300, and a support assembly 400.

[0036] The support carrier 100 serves as a mounting carrier of the CNC turntable and can be a long plate-shaped member, that is, the support carrier 100 has a rectangular structure.

[0037] The first turntable assembly 200 and the second turntable assembly 300 are relatively arranged at positions near the two ends of the supporting carrier 100. The first turntable assembly 200 and the second turntable assembly 300 both include a driving member 210, a bridge plate 220 and a workbench 230. The driving member 210 is arranged on the supporting carrier 100, the bridge plate 220 is arranged at the output end of the driving member 210, and the workbench 230 is rotatably arranged on the bridge plate 220. The workbench 230 is suitable for rotating along the C-axis. The driving member 210 is used to drive the bridge plate 220 to drive the workbench 230 to rotate along the A-axis. The driving member 210 can be a direct-drive motor, and the workbench 230 can be driven by a direct-drive rotary cylinder and other structures to rotate along the C-axis.

[0038] The support assembly 400 is disposed on the support carrier 100 and located between the bridge plate 220 of the first turntable assembly 200 and the bridge plate 220 of the second turntable assembly 300 for supporting the bridge plates 220 of the first turntable assembly 200 and the second turntable assembly 300 .

[0039] It can be understood that the CNC turntable provided in the embodiment of the present invention arranges the first turntable assembly 200 and the second turntable assembly 300 relatively at positions close to the two ends of the support carrier 100, and arranges the support assembly 400 on the support carrier 100 so that the support assembly 400 is located between the bridge plate 220 of the first turntable assembly 200 and the bridge plate 220 of the second turntable assembly 300, and is used to support the bridge plate 220 of the first turntable assembly 200 and the second turntable assembly 300. In this way, by setting the support assembly 400 between the bridge plate 220 of the first turntable assembly 200 and the bridge plate 220 of the second turntable assembly 300, so that both ends of the bridge plates 220 of the first turntable assembly 200 and the second turntable assembly 300 are supported, the stability of each bridge plate 220 can be improved, and the deformation of the bridge plate 220 when the workbench 230 is subjected to force can be avoided to ensure processing accuracy; at the same time, the setting of the support assembly 400 can increase the center distance between the two workbenches 230, so as to effectively solve the problem of easy mutual influence during small-pitch dual C-axis turntable processing.

[0040] In addition, the first turntable assembly 200 and the second turntable assembly 300 both drive the corresponding bridge plates 220 through direct drive motors to drive the corresponding workbenches 230 to rotate along the A-axis. The dynamic characteristics of the CNC turntable are better, which can solve the problem of the turntable being too large due to the driving power when using a single motor drive.

[0041] Figure 2 This is a schematic diagram of the structural decomposition of an embodiment of a CNC turntable provided by an embodiment of the utility model. Figure 3 This is a schematic diagram of the structural decomposition of another embodiment of the CNC turntable provided by the embodiment of the utility model.

[0042] See Figure 2 and Figure 3 In some embodiments of the present invention, the support assembly 400 includes a support body 410 , a support shaft 420 and a transmission member 430 .

[0043] The support body 410 is disposed on the support carrier 100 and primarily serves to support the load. A mounting position 411 is provided on the support body 410. In other words, the support body 410 can be understood as a support, used to support the bridge plate 220 of the first turntable assembly 200 and the second turntable assembly 300. The support body 410 can be connected to the support carrier 100 using screws or bolts.

[0044] The support shaft 420 is passed through the mounting position 411, one end of the support shaft 420 is connected to the bridge plate 220 of the first turntable assembly 200, and the other end of the support shaft 420 is connected to the bridge plate 220 of the second turntable assembly 300; that is, the support shaft 420 is used to connect the bridge plate 220 of the first turntable assembly 200 and the second turntable assembly 300.

[0045] The transmission member 430 is arranged between the support shaft 420 and the inner wall of the installation position 411. The transmission member 430 is used to rotate the support shaft 420 at the installation position 411, reduce the friction coefficient of the support shaft 420 during movement, and ensure the rotation accuracy of the support shaft 420.

[0046] It should be noted that the mounting position 411 can be a mounting hole or a mounting slot. When the mounting position 411 is a mounting slot, the support body 410 includes a base 412 and a cover 413. The mounting slot is provided at the end of the base 412, and the cover 413 is connected to the base 412 by a structure such as bolts to close the mounting slot.

[0047] In some embodiments of the present invention, the transmission member 430 includes any one of a bearing and a bushing.

[0048] Continue reading Figure 2In some embodiments of the present invention, when the support shaft 420 is integrally formed with the bridge plate 220 of the first turntable assembly 200 and the second turntable assembly 300, the support shaft 420 is machined from a pre-cast blank. The transmission member 430 includes a bearing that wraps around the outside of the support shaft 420.

[0049] There are two bearing shells symmetrically arranged, one of which is located between the support shaft 420 and the base 412 , and the other is located between the base 412 and the cover 413 .

[0050] In this embodiment, the bridge plate 220 for controlling the rotation of the C-axis in the first turntable assembly 200 and the second turntable assembly 300 is integrated, which can ensure a high relative position accuracy between the worktables 230 in the first turntable assembly 200 and the second turntable assembly 300, thereby improving the processing accuracy.

[0051] Continue reading Figure 3 In some embodiments of the present invention, when the support shaft 420 is detachably connected to the bridge plate 220 of the first turntable assembly 200 and the second turntable assembly 300, respectively, the transmission member 430 includes a bearing, and the bearing is sleeved on the support shaft 420. The bearing can be a deep groove ball bearing, or other forms of bearings, such as cylindrical roller bearings, can be used according to specific circumstances.

[0052] Specifically, the support shaft 420, the bridge plate 220 of the first turntable assembly 200, and the bridge plate 220 of the second turntable assembly 300 are first cast separately. The support shaft 420 is then screwed to the bridge plates 220 of the first turntable assembly 200 and the second turntable assembly 300. After the bridge plates 220 of the first turntable assembly 200 and the bridge plates 220 of the second turntable assembly 300 are installed, the support shaft 420 can be dropped into the mounting position 411 of the support body 410. Finally, the cover 413 (bearing cover) is bolted to the support body 410, and both the bridge plates 220 of the first turntable assembly 200 and the bridge plates 220 of the second turntable assembly 300 are securely supported.

[0053] In an embodiment of the present invention, the bridge plate 220 for controlling the rotation of the C-axis in the first turntable assembly 200 and the second turntable assembly 300 is arranged in a split type, that is, the first turntable assembly 200 and the second turntable assembly 300 are two independent components, and the support assembly 400 as a whole is an independent component. The support shaft 420 in the support assembly 400 is respectively matched with the bridge plate 220 for controlling the rotation of the C-axis in the first turntable assembly 200 and the second turntable assembly 300 by screw connection, which can reduce the difficulty of casting and processing the structure.

[0054] Continue reading Figures 1 to 3In some embodiments of the present invention, two mounting supports 110 and a support portion 120 are provided on the upper surface of the support carrier 100. The two mounting supports 110 are located near the two ends of the support carrier 100, and the driving members 210 of the first turntable assembly 200 and the second turntable assembly 300 are provided on the corresponding mounting supports 110; the support portion 120 is located in the middle of the two relatively arranged mounting supports 110, and the support assembly 400 is provided on the support portion 120; an avoidance space 130 is formed between the mounting support 110 and the support portion 120 to prevent the workbench 230 from interfering with the mounting support 110 during rotation.

[0055] Continue reading Figures 1 to 3 In some embodiments of the present invention, a pad 140 is provided on the support portion 120, and the support assembly 400 is provided on the pad 140. By providing the pad 140 on the support portion 120 to withstand external forces, the mounting bracket 110 is protected.

[0056] In addition, in the CNC turntable provided by the embodiment of the present invention, the first turntable assembly 200 and the second turntable assembly 300 both drive the corresponding bridge plate 220 through a direct drive motor to drive the corresponding worktable 230 to rotate along the A-axis, and the worktable 230 of the first turntable assembly 200 and the second turntable assembly 300 adopts direct drive to rotate along the C-axis. The CNC turntable has better dynamic characteristics, simple structure, smooth movement, and high positioning accuracy, which can solve the problem of excessive turntable volume caused by driving power when using a single motor drive.

[0057] An embodiment of the present utility model further provides a numerically controlled machine tool, comprising a machine tool body and any one of the numerically controlled turntables, wherein the numerically controlled turntable is arranged on the machine tool body.

[0058] The CNC machine tool provided by the embodiment of the present invention has a CNC turntable which is a large dual C-axis turntable with a support assembly 400 in the middle. The CNC turntable is arranged on the X-axis or Y-axis of the CNC machine tool, thereby forming a fully functional CNC machine tool.

[0059] The CNC system can control the worktables 230 of the first turntable assembly 200 and the second turntable assembly 300 to operate simultaneously, achieving good consistency, improving processing efficiency while reducing operating costs. In addition, the worktables 230 of the first turntable assembly 200 and the second turntable assembly 300 can also move independently according to specific processing requirements.

[0060] Since the CNC machine tool provided by the present invention includes the above-mentioned CNC turntable, the CNC turntable relatively arranges the first turntable assembly 200 and the second turntable assembly 300 at positions close to the two ends of the support carrier 100, and arranges the support assembly 400 on the support carrier 100 so that the support assembly 400 is located between the bridge plate 220 of the first turntable assembly 200 and the bridge plate 220 of the second turntable assembly 300, and is used to support the bridge plate 220 of the first turntable assembly 200 and the second turntable assembly 300. In this way, by setting the support assembly 400 between the bridge plate 220 of the first turntable assembly 200 and the bridge plate 220 of the second turntable assembly 300, so that both ends of the bridge plates 220 of the first turntable assembly 200 and the second turntable assembly 300 are supported, the stability of each bridge plate 220 can be improved, and the deformation of the bridge plate 220 when the workbench 230 is subjected to force can be avoided to ensure processing accuracy; at the same time, the setting of the support assembly 400 can increase the center distance between the two workbenches 230, so as to effectively solve the problem of easy mutual influence during small-pitch dual C-axis turntable processing.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A CNC turntable, characterized in that: include: Support carrier (100); The first turntable assembly (200) and the second turntable assembly (300) are relatively arranged at positions close to both ends of the support carrier (100), and the first turntable assembly (200) and the second turntable assembly (300) each include a driving member (210), a bridge plate (220) and a workbench (230), wherein the driving member (210) is arranged on the support carrier (100), the bridge plate (220) is arranged at the output end of the driving member (210) and is suitable for rotating with the driving member (210), and the workbench (230) is rotatably arranged on the bridge plate (220); A support assembly (400) is provided on the support carrier (100) and is located between the bridge plate (220) of the first turntable assembly (200) and the bridge plate (220) of the second turntable assembly (300), and is used to support the bridge plates (220) of the first turntable assembly (200) and the second turntable assembly (300).

2. The CNC turntable according to claim 1, characterized in that: The support assembly (400) comprises: A supporting body (410) is provided on the supporting carrier (100), and a mounting position (411) is provided on the supporting body (410); A support shaft (420) is provided through the mounting position (411), one end of the support shaft (420) is connected to the bridge plate (220) of the first turntable assembly (200), and the other end of the support shaft (420) is connected to the bridge plate (220) of the second turntable assembly (300); A transmission member (430) is provided between the support shaft (420) and the inner wall of the installation position (411), and the transmission member (430) is used to support the support shaft (420) to rotate at the installation position (411).

3. The CNC turntable according to claim 2, characterized in that: The transmission member (430) includes any one of a bearing and a bearing bush.

4. The CNC turntable according to claim 3, characterized in that: When the support shaft (420) is integrally formed with the bridge plates (220) of the first turntable assembly (200) and the second turntable assembly (300), the transmission member (430) includes a bearing, and the bearing is wrapped around the outside of the support shaft (420).

5. The CNC turntable according to claim 3, characterized in that: When the support shaft (420) is detachably connected to the bridge plates (220) of the first turntable assembly (200) and the second turntable assembly (300), respectively, the transmission member (430) includes a bearing, and the bearing is sleeved on the support shaft (420).

6. The CNC turntable according to any one of claims 1 to 5, characterized in that: Two mounting supports (110) and a support portion (120) are provided on the upper surface of the support carrier (100), the two mounting supports (110) are located near the two ends of the support carrier (100), and the driving members (210) of the first turntable assembly (200) and the second turntable assembly (300) are provided on the corresponding mounting supports (110); the support portion (120) is located between the two mounting supports (110) that are arranged opposite to each other, and the support assembly (400) is provided on the support portion (120); An escape space (130) is formed between the mounting support (110) and the support portion (120).

7. The CNC turntable according to claim 6, characterized in that: A cushion block (140) is provided on the support portion (120), and the support assembly (400) is provided on the cushion block (140).

8. A CNC machine tool, characterized in that: It comprises a machine tool body and a CNC turntable according to any one of claims 1 to 7, wherein the CNC turntable is arranged on the machine tool body.

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