Rotary table for small numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tool turntables, in particular to a small numerical control machine tool turntable which comprises a bottom plate, a tailstock body fixedly connected to the left side of the upper end of the bottom plate, a wire rod arranged on the left side of the tailstock body, an inclined shaft body fixedly connected to the right side of the upper end of the bottom plate, and a rotating shaft body arranged between the inclined shaft body and the tailstock body. A working disc face is arranged on the upper end face of the rotating shaft body, a driving protective cover is fixedly connected to the right side of the inclined shaft body, an inclined shaft servo motor is arranged in the middle of the driving protective cover, a first servo motor mounting flange is fixedly connected to the right side of the inclined shaft body, and a first harmonic reducer assembly is fixedly connected to the left side of the inclined shaft servo motor. The novel bearing and the novel harmonic reducer are adopted, so that the working disc surface can be more stable during movement, and the precision of machined parts is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machine tool turntables, in particular to a turntable for a small CNC machine tool. Background Art

[0002] The CNC machine tool turntable mainly drives the turntable to rotate through multi-axis motion, thereby driving the turntable to complete equal, unequal or continuous rotation processing, so as to process the workpiece into complex surfaces and adapt to the processing of different structures and shapes.

[0003] The existing machine tool turntable cannot withstand large radial and axial loads because the internal bearings and harmonic reducers cannot withstand large radial and axial loads, which causes the machine tool turntable to work stably, thereby affecting the processing accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a turntable for a small CNC machine tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turntable for a small CNC machine tool, comprising a base plate, a tailstock body is fixedly connected to the left side of the upper end of the base plate, a wire is provided on the left side of the tailstock body, a tilting axis body is fixedly connected to the right side of the upper end of the base plate, a rotating axis body is provided between the tilting axis body and the tailstock body, a working disk surface is provided on the upper end surface of the rotating axis body, a driving protective cover is fixedly connected to the right side of the tilting axis body, a tilting axis servo motor is provided in the middle of the driving protective cover, a first servo motor mounting flange is fixedly connected to the right side of the tilting axis body, a first harmonic reducer assembly is fixedly connected to the left side of the tilting axis servo motor, a rotating axis servo motor is provided in the rotating axis body, a second servo motor mounting flange is provided on the upper end of the rotating axis servo motor, a second harmonic reducer assembly is provided on the upper end of the second servo motor mounting flange, and the upper end of the second harmonic reducer assembly is fixedly connected to the working disk surface.

[0006] Preferably, a first sleeve is fixedly connected to the power output end of the first servo motor mounting flange, both ends of the first sleeve pass through the rotating shaft body, a bearing is provided at the connection between the first servo motor mounting flange and the first sleeve, and the first harmonic reducer assembly and the tilt axis servo motor are fixedly connected to the first sleeve.

[0007] Preferably, a second sleeve is fixedly connected to the power output end of the second servo motor mounting flange, a bearing is provided at the connection between the second servo motor mounting flange and the second sleeve, and the second harmonic reducer assembly and the tilt axis servo motor are fixedly connected to the second sleeve.

[0008] Preferably, the outer wall cross-section of the bearing outer ring is an L-shaped structure, the inner ring is clamped at the structure, the first harmonic reducer assembly and the second harmonic reducer assembly adopt flexible gear transmission, and the steel wheel and the bearing are integrated into one design.

[0009] Compared with the prior art, the beneficial effects of the utility model are: the use of independently developed combined bearings and harmonic reducers enables the bearings and harmonic reducers to withstand larger radial and axial loads, is suitable for small CNC machine tool mechanical parts processing, runs more smoothly, and the processed parts have higher precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the three-dimensional connection of the rotary table of a CNC machine tool.

[0011] Figure 2 This is a schematic diagram of the internal connections of the CNC machine tool rotary table.

[0012] Figure 3 It is a connection diagram of the first tilt axis servo motor and the second tilt axis servo motor.

[0013] In the figure: 1. base plate, 2. rotating shaft body, 3. wire, 4. tailstock body, 5. working disk surface, 6. tilting shaft body, 7. drive protection cover, 8. first tilting shaft servo motor, 9. first servo motor mounting flange, 10. first harmonic reducer assembly, 11. second servo motor mounting flange, 12. second harmonic reducer assembly, 13. rotating shaft servo motor. DETAILED DESCRIPTION

[0014] In order to deepen the understanding and recognition of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described and introduced in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments, and are not intended to limit the embodiments in any form. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-3The utility model provides a technical solution: a turntable for a small CNC machine tool, comprising a base plate 1, a tailstock body 4 is fixedly connected to the left side of the upper end of the base plate 1, a wire 3 is provided on the left side of the tailstock body 4, a tilting shaft body 6 is fixedly connected to the right side of the upper end of the base plate 1, a rotating shaft body 2 is provided between the tilting shaft body 6 and the tailstock body 4, a working disk surface 5 is provided on the upper end surface of the rotating shaft body 2, a driving protective cover 7 is fixedly connected to the right side of the tilting shaft body 6, a tilting shaft servo motor 8 is provided in the middle of the driving protective cover 7, a first servo motor mounting flange 9 is fixedly connected to the right side of the tilting shaft body 6, a first harmonic reducer assembly 10 is fixedly connected to the left side of the tilting shaft servo motor 8, a rotating shaft servo motor 13 is provided in the rotating shaft body 2, a second servo motor mounting flange 11 is provided on the upper end of the rotating shaft servo motor 13, a second harmonic reducer assembly 12 is provided on the upper end of the second servo motor mounting flange 11, and the upper end of the second harmonic reducer assembly 12 is fixedly connected to the working disk surface 5.

[0016] The power output end of the first servo motor mounting flange 9 is fixedly connected with a first sleeve, both ends of the first sleeve pass through the rotating shaft body 2, a bearing is provided at the connection between the first servo motor mounting flange 9 and the first sleeve, the first harmonic reducer assembly 10 and the tilting axis servo motor 8 are fixedly connected with the first sleeve, the first harmonic reducer assembly 10 is driven to work through the first sleeve, and the first servo motor mounting flange 9 can limit the installation of the first sleeve.

[0017] The power output end of the second servo motor mounting flange 11 is fixedly connected with a second sleeve, and a bearing is provided at the connection between the second servo motor mounting flange 11 and the second sleeve. The second harmonic reducer assembly 12 and the tilting axis servo motor 8 are fixedly connected with the second sleeve, and the second harmonic reducer assembly 12 is driven to work through the second sleeve. The second servo motor mounting flange 11 can limit the installation of the second sleeve.

[0018] The outer wall cross-section of the outer ring of the bearing is an L-shaped structure, and the inner ring is clamped at this structure. The first harmonic reducer assembly 10 and the second harmonic reducer assembly 12 adopt flexible gear transmission, and the steel wheel and the bearing are integrated into an integrated design. The new bearing and the new harmonic reducer have relatively good radial and axial loads. The new bearing and the new harmonic reducer are applied for with other application documents. This scheme does not expand the specific structural description and does not affect the integrity of this scheme. The new bearing and the new harmonic reducer can make the working disk surface 5 more stable when moving, and the processed parts can be more accurate.

[0019] Although the embodiments of the utility model have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the utility model, and does not limit the utility model in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A turntable for a small CNC machine tool, comprising a base plate (1), characterized in that: The left side of the upper end of the base plate (1) is fixedly connected to a tailstock body (4), the left side of the tailstock body (4) is provided with a wire (3), the right side of the upper end of the base plate (1) is fixedly connected to a tilting shaft body (6), a rotating shaft body (2) is provided between the tilting shaft body (6) and the tailstock body (4), the upper end surface of the rotating shaft body (2) is provided with a working disk surface (5), the right side of the tilting shaft body (6) is fixedly connected to a driving protective cover (7), the middle of the driving protective cover (7) is provided with a tilting shaft servo motor (8), and the tilting shaft A first servo motor mounting flange (9) is fixedly connected to the right side of the body (6), a first harmonic reducer assembly (10) is fixedly connected to the left side of the tilting axis servo motor (8), a rotating axis servo motor (13) is arranged in the rotating axis body (2), a second servo motor mounting flange (11) is arranged at the upper end of the rotating axis servo motor (13), a second harmonic reducer assembly (12) is arranged at the upper end of the second servo motor mounting flange (11), and the upper end of the second harmonic reducer assembly (12) is fixedly connected to the working disk surface (5).

2. The turntable for a small CNC machine tool according to claim 1, characterized in that: A first sleeve is fixedly connected to the power output end of the first servo motor mounting flange (9), both ends of the first sleeve pass through the rotating shaft body (2), a bearing is provided at the connection between the first servo motor mounting flange (9) and the first sleeve, and the first harmonic reducer assembly (10) and the tilting axis servo motor (8) are fixedly connected to the first sleeve.

3. The turntable for a small CNC machine tool according to claim 1, characterized in that: A second sleeve is fixedly connected to the power output end of the second servo motor mounting flange (11), a bearing is provided at the connection between the second servo motor mounting flange (11) and the second sleeve, and the second harmonic reducer assembly (12) and the tilting axis servo motor (8) are fixedly connected to the second sleeve.

4. The turntable for a small CNC machine tool according to claim 2, characterized in that: The outer wall cross-section of the bearing outer ring is an L-shaped structure, and the inner ring is clamped on the structure. The first harmonic reducer component (10) and the second harmonic reducer component (12) adopt flexible gear transmission, and the steel wheel and the bearing are designed as an integrated whole.

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