Five-axis rotary table

Abstract

The embodiment of the utility model discloses a five-axis turntable which comprises a main seat, a tail seat, a connecting seat and a turntable, the main base and the tail base are connected through the connecting base, a four-axis motor for driving the connecting base is arranged on one side of the main base, the rotating disc is movably connected to the top end of the connecting base, and a five-axis motor for driving the rotating disc is arranged in the connecting base; the tailstock comprises a tailstock body and a gland, a limiting groove is defined by the tailstock body and the gland, a bearing is arranged in the limiting groove, an inner ring and an outer ring of the bearing are coaxially arranged, the outer ring of the bearing is fixed in the limiting groove, a through hole is formed in the bottom wall of the limiting groove, a hollow connecting protruding block is arranged at one end of the connecting base, and a through hole is formed in the other end of the connecting base. The connecting base and the connecting protruding block are both coaxially arranged with the bearing, and the connecting protruding block penetrates through the through hole and is connected with the inner ring of the bearing in an inserted mode. According to the embodiment of the utility model, the tailstock is arranged to limit the axis of the connecting seat, so that the working precision of the rotary table is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a five-axis turntable. Background Art

[0002] The five-axis turntable is an important accessory of the machine tool. It can provide the machine tool with the fourth and fifth rotational processing degrees of freedom in addition to the three XYZ processing degrees of freedom. When the existing cradle-type five-axis turntable on the market is working, the axis of the connecting seat will deviate slightly during the swinging process, affecting the working accuracy of the turntable. Utility Model Content

[0003] In view of this, the utility model provides a five-axis turntable, which is used to solve the problem in the prior art that the displacement of the connecting seat affects the output accuracy of the turntable.

[0004] To achieve one or part or all of the above purposes or other purposes, the present application proposes a five-axis rotary table, including a main seat, a tail seat, a connecting seat and a turntable;

[0005] The main seat and the tail seat are connected through the connecting seat, a four-axis motor driving the connecting seat is provided on one side of the main seat, the turntable is movably connected to the top of the connecting seat, and a five-axis motor driving the turntable is provided in the connecting seat;

[0006] The tailstock includes a tailstock body and a pressure cover, the tailstock body and the pressure cover are combined to form a limiting groove, a bearing with inner and outer rings coaxially arranged is arranged in the limiting groove, the outer ring of the bearing is fixed in the limiting groove, a through hole is provided on the bottom wall of the limiting groove, a hollow connecting protrusion is provided at one end of the connecting seat, the connecting seat and the connecting protrusion are both coaxially arranged with the bearing, and the connecting protrusion passes through the through hole and is plugged into the inner ring of the bearing.

[0007] Furthermore, a fixing ring is arranged in the limiting groove, the outer side wall of the fixing ring abuts against the inner side wall of the limiting groove, and the inner side wall of the fixing ring abuts against the outer side wall of the bearing.

[0008] Furthermore, a hollow five-axis tube is provided on a side of the gland away from the tailstock body, and the five-axis tube is connected to the connecting protrusion.

[0009] Furthermore, the bearing is a deep groove ball bearing.

[0010] Furthermore, a sealing rubber ring is provided on one side of the tailstock body close to the connecting seat, and the connecting protrusion passes through the sealing rubber ring and then passes out from the through hole.

[0011] Furthermore, a limiting convex ring is provided on the pressure cover, one side of the bearing abuts against the limiting convex ring, and the other side abuts against the bottom wall of the limiting groove.

[0012] Furthermore, the five-axis turntable also includes a base plate, the main seat and the tail seat are fixedly arranged at both ends of the base plate respectively, the base plate is provided with an avoidance hole, and the connecting seat is arranged above the avoidance hole.

[0013] Furthermore, a mounting shell is provided on the main seat, the mounting shell is used to accommodate the four-axis motor, and a four-axis tube is provided on the outer wall of the mounting shell, and the four-axis tube is used for routing the wires of the four-axis motor.

[0014] Furthermore, a connecting plate is provided at one end of the connecting seat close to the main seat, a flange is provided on one side of the main seat, and the connecting plate is fixedly connected to the main seat via the flange.

[0015] Furthermore, a four-axis reducer is provided in the main seat, the four-axis motor is used to drive the four-axis reducer, and the four-axis reducer is fixedly connected to the flange.

[0016] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0017] By adopting the five-axis turntable provided by the utility model, through the assembly structure of the tailstock and the connecting seat, the inner ring of the bearing and the connecting protrusion of the connecting seat rotate together, the outer ring of the bearing is fixedly connected to the tailstock body, and the connecting protrusion is radially positioned, so that the connecting seat is fixed in the radial direction, thereby improving the output accuracy of the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] in:

[0020] Figure 1 This is a structural schematic diagram of an embodiment of the five-axis turntable proposed in this application from one angle;

[0021] Figure 2 A top view of an embodiment of a five-axis turntable proposed in this application;

[0022] Figure 3 for Figure 2 Sectional view of section AA;

[0023] Figure 4 for Figure 3 Enlarged view of middle B;

[0024] Figure 5 This is a schematic diagram of the exploded structure of the tailstock in one embodiment of the five-axis turntable proposed in this application.

[0025] Reference numerals:

[0026] 1. Main seat; 11. Four-axis motor; 12. Mounting shell; 13. Four-axis tube; 14. Flange; 15. Four-axis reducer;

[0027] 2. Tailstock; 21. Tailstock body; 22. Gland; 23. Limiting groove; 24. Bearing; 25. Fixing ring; 26. Five-axis tube; 27. Sealing rubber ring; 28. Limiting convex ring;

[0028] 3. Connecting seat; 31. Turntable; 32. Five-axis motor; 33. Connecting convex block; 34. Connecting plate;

[0029] 4. Bottom plate; 41. Avoidance hole. DETAILED DESCRIPTION

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] Reference Figures 1 to 5 , the present application proposes a five-axis turntable, including a main seat 1, a tail seat 2, a connecting seat 3 and a turntable 31;

[0034] The main seat 1 and the tail seat 2 are connected through the connecting seat 3. A four-axis motor 11 driving the connecting seat 3 is provided on one side of the main seat 1. A turntable 31 is movably connected to the top of the connecting seat 3. A five-axis motor 32 driving the turntable 31 is provided in the connecting seat 3.

[0035] Specifically, the five-axis turntable also includes a base plate 4, a main base 1 and a tail base 2 are fixedly arranged at the two ends of the base plate 4, a avoidance hole 41 is arranged on the base plate 4, and a connecting base 3 is arranged above the avoidance hole 41. A four-axis reducer 15 is arranged inside the main base 1, and a four-axis motor 11 drives the four-axis reducer 15 to move. The other end of the four-axis reducer 15 is connected to a flange 14, and the other end of the flange 14 is fixedly connected to a connecting plate 34 arranged on the connecting base 3. When the four-axis motor 11 is started, it can drive the connecting base 3 to swing. A five-axis reducer is arranged inside the connecting base 3, and a five-axis motor 32 drives the five-axis reducer to drive the turntable 31 to rotate. There are a number of connecting holes distributed in an annular shape on the turntable 31, and the connecting holes can be installed with fixtures of different sizes and models.

[0036] The tailstock 2 includes a tailstock body 21 and a pressure cover 22. The tailstock body 21 and the pressure cover 22 are enclosed to form a limiting groove 23. A bearing 24 with inner and outer rings arranged coaxially is arranged in the limiting groove 23. The outer ring of the bearing 24 is fixed in the limiting groove 23. A through hole is arranged on the bottom wall of the limiting groove 23. A hollow connecting protrusion 33 is arranged at one end of the connecting seat 3. The connecting seat 3 and the connecting protrusion 33 are both arranged coaxially with the bearing 24, and the connecting protrusion 33 passes through the through hole and is plugged with the inner ring of the bearing 24. When the connecting seat 3 swings, the connecting protrusion 33 moves together with the inner ring of the bearing 24, and the outer ring of the bearing 24 is fixed in the limiting groove 23. Since the central axis of the inner and outer rings of the bearing 24 and the connecting protrusion 33 are both arranged coaxially with the rotating shaft of the connecting seat 3, the position of the outer ring of the bearing 24 is fixed, and the connecting protrusion 33 is radially limited by the bearing 24, so that the rotating shaft of the connecting seat 3 is not easily offset.

[0037] The tailstock body 21 is fixedly arranged on the bottom plate 4, and the pressure cover 22 is arranged on one side of the tailstock body 21, and covers the limiting groove 23. A fixing ring 25 is arranged in the limiting groove 23, and the outer side wall of the fixing ring 25 abuts against the inner side wall of the limiting groove 23, and the inner side wall of the fixing ring 25 abuts against the outer side wall of the bearing 24. The longitudinal section of the limiting groove 23 is approximately square, and the outer surface of the fixing ring 25 fits with the inner wall of the limiting groove 23, and the outer surface of the longitudinal section is also approximately square. When the connecting protrusion 33 drives the inner ring of the bearing 24 to rotate together, the friction between the fixing ring 25 and the side wall of the limiting groove 23 is increased. The inner surface of the longitudinal section of the fixing ring 25 is circular, fits with the outer surface of the bearing 24, and limits the bearing 24 in the radial direction.

[0038] In addition, a limiting convex ring 28 is provided on the gland 22, and one side of the outer ring of the bearing 24 abuts against the limiting convex ring 28, and the other side abuts against the bottom wall of the limiting groove 23. Through the cooperation between the limiting convex ring 28 and the limiting groove 23, the outer ring of the bearing 24 is limited on the axis.

[0039] In this embodiment, the bearing 24 is a deep groove ball bearing. A plurality of balls are arranged between the outer ring and the inner ring of the bearing 24, and the balls reduce the friction between the outer ring and the inner ring of the bearing 24. In addition, after the deep groove ball bearing is assembled on the connecting protrusion 33, within the axial clearance range of the bearing 24, the axial displacement of the connecting protrusion 33 can be limited, and the connecting seat 3 is axially positioned, which further ensures the working accuracy of the turntable.

[0040] In this embodiment, a hollow five-axis tube 26 is further provided on the side of the pressure cover 22 away from the tailstock body 21, and the five-axis tube 26 is connected to the connecting protrusion 33. A mounting shell 12 is provided on the main seat 1, and the mounting shell 12 is used to accommodate the four-axis motor 11. The outer wall of the mounting shell 12 is provided with a four-axis tube 13, and the four-axis tube 13 is used for the wire routing of the four-axis motor 11. In order to facilitate the signal connection and electrical connection between the four-axis motor 11 and the five-axis motor 32 and the numerical control center of the machine tool, the five-axis tube 26 is used for the wire routing of the five-axis motor 32. The pressure cover 22 is provided with an opening coaxial with the bearing 24. The five-axis tube 26 covers the outer wall of the pressure cover 22 and is connected to the opening. The cross-section of the five-axis tube 26 is similar to an L-shape, and its opening is set downward to prevent the external coolant from entering the inside of the limit groove 23 through the five-axis tube 26 during operation and corroding the bearing 24. Similarly, the four-axis tube 13 is arranged on one side of the main seat 1, and its structure is similar to the five-axis tube 26.

[0041] In this embodiment, a sealing rubber ring 27 is further provided on one side of the tailstock body 21 close to the connecting seat 3, and the connecting protrusion 33 passes through the sealing rubber ring 27 and then passes out from the through hole. The sealing rubber ring 27 is O-shaped, and a receiving groove is provided on the tailstock body 21. The sealing rubber ring 27 is arranged inside the receiving groove, and the other side abuts against the connecting seat 3. The sealing rubber ring 27 can prevent external coolant from entering the limiting groove 23 to corrode the bearing 24, thereby improving the service life of the bearing 24.

[0042] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A five-axis turntable, characterized in that: Including main seat, tail seat, connecting seat and turntable; The main seat and the tail seat are connected through the connecting seat, a four-axis motor driving the connecting seat is provided on one side of the main seat, the turntable is movably connected to the top of the connecting seat, and a five-axis motor driving the turntable is provided in the connecting seat; The tailstock includes a tailstock body and a pressure cover, the tailstock body and the pressure cover are combined to form a limiting groove, a bearing with inner and outer rings coaxially arranged is arranged in the limiting groove, the outer ring of the bearing is fixed in the limiting groove, a through hole is provided on the bottom wall of the limiting groove, a hollow connecting protrusion is provided at one end of the connecting seat, the connecting seat and the connecting protrusion are both coaxially arranged with the bearing, and the connecting protrusion passes through the through hole and is plugged into the inner ring of the bearing.

2. The five-axis turntable according to claim 1, characterized in that: A fixing ring is arranged in the limiting groove, the outer side wall of the fixing ring abuts against the inner side wall of the limiting groove, and the inner side wall of the fixing ring abuts against the outer side wall of the bearing.

3. The five-axis turntable according to claim 1, characterized in that: A hollow five-axis tube is also provided on one side of the pressure cover away from the tailstock body, and the five-axis tube is communicated with the connecting protrusion.

4. The five-axis turntable according to claim 1, characterized in that: The bearing is a deep groove ball bearing.

5. The five-axis turntable according to claim 1, characterized in that: A sealing rubber ring is also provided on one side of the tailstock body close to the connecting seat, and the connecting protrusion passes through the sealing rubber ring and then passes out from the through hole.

6. The five-axis turntable according to claim 1, characterized in that: The pressure cover is provided with a limiting convex ring, one side of the bearing abuts against the limiting convex ring, and the other side abuts against the bottom wall of the limiting groove.

7. The five-axis turntable according to claim 1, characterized in that: The five-axis turntable also includes a base plate, the main seat and the tail seat are fixedly arranged at two ends of the base plate respectively, the base plate is provided with an avoidance hole, and the connecting seat is arranged above the avoidance hole.

8. The five-axis turntable according to claim 1, characterized in that: The main seat is provided with a mounting shell, the mounting shell is used to accommodate the four-axis motor, the outer wall of the mounting shell is provided with a four-axis tube, and the four-axis tube is used for routing the wires of the four-axis motor.

9. The five-axis turntable according to claim 1, characterized in that: A connecting plate is provided at one end of the connecting seat close to the main seat, a flange is provided at one side of the main seat, and the connecting plate is fixedly connected to the main seat via the flange.

10. The five-axis turntable according to claim 9, characterized in that: A four-axis reducer is arranged in the main seat, and the four-axis motor is used to drive the four-axis reducer, and the four-axis reducer is fixedly connected to the flange.

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