Five-axis rotary table

Abstract

The utility model discloses a five-axis rotary table which comprises a base, a rotary table body and a workpiece clamping disc. A main supporting table and an auxiliary supporting table which are arranged alternately are arranged on the base, the rotary table is rotatably erected between the main supporting table and the auxiliary supporting table, a roller cam speed reducer and a four-axis servo motor used for driving the roller cam speed reducer are arranged on the main supporting table, and the roller cam speed reducer is fixedly connected with the end of the rotary table. The rotary table is driven to obliquely swing between the main supporting table and the auxiliary supporting table; a harmonic reducer and a five-axis servo motor used for driving the harmonic reducer are arranged in the rotary table. And the workpiece clamping disc is rotatably installed at the top of the connecting base, the workpiece clamping disc is fixedly connected with the harmonic speed reducer, and the workpiece clamping disc is driven by the harmonic speed reducer to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to an auxiliary device of a machine tool. Background Art

[0002] The five-axis turntable is an important auxiliary device 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. The existing five-axis turntables on the market generally use roller cam reducers for transmission for the fourth and fifth axes. Since the roller cam reducer itself is large in size, the outer structure of the fifth axis is bulky, which further increases the overall size of the five-axis turntable, making it inconvenient to install the five-axis turntable on the machine tool for use, and its practicality is poor. Utility Model Content

[0003] In view of this, the utility model provides a five-axis turntable, which is used to solve the problem that the five-axis turntable in the prior art is large in size and heavy in weight, resulting in impracticality.

[0004] To achieve one or part or all of the above purposes or other purposes, the utility model proposes: a five-axis turntable, comprising: a base, a turntable and a workpiece chuck;

[0005] The base is provided with a main support platform and a secondary support platform alternately arranged, the turntable is rotatably mounted between the main support platform and the secondary support platform, the main support platform is provided with a roller cam reducer and a four-axis servo motor for driving the roller cam reducer, the roller cam reducer is fixedly connected to the end of the turntable, driving the turntable to tilt and swing between the main support platform and the secondary support platform;

[0006] The turntable is provided with a harmonic reducer and a five-axis servo motor for driving the harmonic reducer;

[0007] The workpiece clamping disc is rotatably mounted on the top of the connecting seat, and the workpiece clamping disc is fixedly connected to the harmonic reducer, and the workpiece clamping disc is driven to rotate by the harmonic reducer.

[0008] Preferably, the turntable comprises a connecting seat and a sleeve;

[0009] The connecting seat includes a main connecting plate and a secondary connecting end, wherein the main connecting plate is provided with a plurality of bolt mounting holes for connecting with the roller cam reducer; the secondary connecting end is used for rotationally connecting with the secondary supporting platform;

[0010] An upper mounting groove and a lower mounting groove are provided in the middle of the connecting seat, the upper mounting groove is used to fix the harmonic reducer, and the lower mounting groove is used to fix the five-axis servo motor, and the output shaft of the five-axis servo motor is fixedly connected to the harmonic reducer;

[0011] The sleeve is installed at the bottom of the connecting seat and covers the lower installation groove.

[0012] Preferably, the secondary supporting platform is provided with a bearing for connecting with the secondary connecting end.

[0013] Preferably, the base further comprises a waterproof shell, and the waterproof shell is used to cover the auxiliary supporting platform.

[0014] Preferably, a wiring hole is provided inside the secondary connection end, and the wiring hole communicates with the lower mounting groove and the end of the secondary connection end, so that the wires of the five-axis servo motor can pass through the wiring hole into the waterproof shell.

[0015] Preferably, the side wall of the waterproof shell is provided with an L-shaped outlet tube, and the opening of the L-shaped outlet tube is arranged downward, so that the wires of the five-axis servo motor can be placed outside through the L-shaped outlet tube.

[0016] Preferably, the wiring hole is arranged obliquely toward the lower mounting groove.

[0017] Preferably, a plurality of wire buckles are installed on a side wall of the sleeve close to the wire outlet hole, and the wire buckles are used to fix the wires.

[0018] Preferably, it also includes a sealing rubber ring. The connecting seat is provided with an annular groove around the notch of the lower mounting groove. The annular groove is used to place the sealing rubber ring. When the sleeve is connected to the connecting seat, the end wall of the sleeve presses the sealing rubber ring.

[0019] Preferably, the workpiece clamping plate is provided with a plurality of T-shaped external grooves and a plurality of workpiece connecting holes.

[0020] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0021] After adopting the above-mentioned five-axis turntable, the tilting and swinging of the turntable can be made more efficient through the roller cam reducer. In order to reduce the volume of the turntable, a harmonic reducer is installed in the turntable to ensure that the output torque remains unchanged while having a smaller volume and weight, thereby reducing the volume of the turntable and the installation space of the base, thereby meeting the lightweight requirements of the five-axis turntable, so that the five-axis turntable can be used on more types of machine tools, solving the problem of poor practicality caused by the large size and heavy weight of traditional five-axis turntables. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] in:

[0024] Figure 1 This is a schematic diagram of the overall structure of the five-axis turntable proposed by the utility model;

[0025] Figure 2 This is an exploded view of the overall structure of the five-axis turntable proposed in the utility model;

[0026] Figure 3 This is a structural schematic diagram of the connecting seat of the five-axis turntable proposed by the utility model;

[0027] Figure 4 This is a structural cross-sectional view of the connecting seat of the five-axis turntable proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the sleeve of the five-axis turntable proposed by the utility model;

[0029] Figure 6 The utility model is a schematic diagram of the structure of the workpiece chuck of the five-axis turntable.

[0030] Figure numerals: 1 base, 10 main support platform, 11 auxiliary support platform, 110 bearing, 12 waterproof shell, 120 L-shaped outlet pipe, 2 turntable, 20 connecting seat, 200 upper mounting groove, 201 lower mounting groove, 202 main connecting plate, 203 auxiliary connecting end, 204 wiring hole, 205 ring groove, 21 sleeve, 211 wire buckle, 3 workpiece clamping plate, 30 workpiece connecting hole, 31 T-shaped external groove, 4 roller cam reducer, 5 four-axis servo motor, 6 harmonic reducer, 7 five-axis servo motor. DETAILED DESCRIPTION

[0031] 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 invention; 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 invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention 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 invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0032] 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 invention. 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.

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] like Figure 1-6 The example shown is an embodiment provided by the utility model.

[0035] The utility model embodiment provides a five-axis turntable, including: a base 1, a turntable 2 and a workpiece chuck 3; the base 1 is provided with a main support platform 10 and a secondary support platform 11 alternately, the turntable 2 is rotatably mounted between the main support platform 10 and the secondary support platform 11, the main support platform 10 is provided with a roller cam reducer 4 and a four-axis servo motor 5 for driving the roller cam reducer 4, the roller cam reducer 4 is fixedly connected to the end of the turntable 2, driving the turntable 2 to tilt and swing between the main support platform 10 and the secondary support platform 11; a harmonic reducer 6 and a five-axis servo motor 7 for driving the harmonic reducer 6 are provided inside the turntable 2; the workpiece chuck 3 is rotatably installed on the top of the connecting seat 20, and the workpiece chuck 3 is fixedly connected to the harmonic reducer 6, and the workpiece chuck 3 is driven to rotate by the harmonic reducer 6.

[0036] Specifically, the five-axis turntable is installed on a machine tool for use, and a fixture is installed through the workpiece chuck 3 or the workpiece is directly installed, so that the machine tool can be processed. The five-axis servo motor 7 and the four-axis servo motor 5 are connected to the CNC center of the machine tool through wires, and the five-axis servo motor 7 and the four-axis servo motor 5 are controlled by the CNC center to realize the tilting and swinging of the turntable 2 and the rotation of the workpiece chuck 3 on the turntable 2. The roller cam reducer 4 can make the tilting and swinging of the turntable 2 more efficient, and in order to reduce the volume of the turntable 2, a harmonic reducer 6 is installed in the turntable 2, while ensuring that the output torque remains unchanged, it also has a smaller volume and weight, thereby reducing the volume of the turntable 2 and the installation space of the base 1, thereby meeting the lightweight requirements of the five-axis turntable, so that the five-axis turntable can be used on more types of machine tools, solving the problem of poor practicality caused by the large volume and heavy weight of the traditional five-axis turntable.

[0037] In this embodiment, a plurality of T-shaped external grooves 31 and a plurality of workpiece connecting holes 30 may be provided on the workpiece chuck 3. The T-shaped external grooves 31 may be used to install a fixture, and the workpiece may be clamped by the external fixture to facilitate the machine tool to process the workpiece. For special workpieces, they may be directly fixed through the workpiece connecting holes 30 on the workpiece chuck 3. The workpiece chuck 3 of this embodiment provides a variety of workpiece clamping options, which is more practical.

[0038] See attached Figure 2 and attached Figure 4 The turntable 2 includes a connecting seat 20 and a sleeve 21; the connecting seat 20 includes a main connecting disk 202 and a secondary connecting section 203, and the main connecting disk 202 is provided with a plurality of bolt mounting holes for connecting with the roller cam reducer 4; the secondary connecting section 203 is used for rotationally connecting with the secondary support platform 11; a protruding structure is provided in the middle of the connecting disk, and the protruding structure is used for positioning with the roller cam reducer 4, and finally the connecting disk and the roller cam reducer 4 are locked by tightening bolts; a bearing 110 connected to the secondary connecting section 203 is provided on the secondary support platform 11, so that the secondary connecting section 203 can rotate compared with the secondary support platform 11. An upper mounting groove 200 and a lower mounting groove 201 are provided in the middle of the connecting seat 20, which are connected from top to bottom. The upper mounting groove 200 is used to fix the harmonic reducer 6, and the lower mounting groove 201 is used to fix the five-axis servo motor 7, and the output shaft of the five-axis servo motor 7 is fixedly connected to the harmonic reducer 6; the sleeve 21 is installed at the bottom of the connecting seat 20 and covers the lower mounting groove 201. Specifically, the upper mounting groove 200 is connected with the middle part of the lower mounting groove 201, so that the output shaft of the five-axis servo motor 7 can be passed through and fixedly connected with the harmonic reducer 6. The connecting seat 20 is provided with an annular groove 205 around the notch of the lower mounting groove 201. The annular groove 205 is used to place a sealing rubber ring (not shown in the drawings). The sealing rubber ring can be in the form of a rubber ring or a multi-end rubber strip. When the sleeve 21 is connected to the connecting seat 20, the end wall of the sleeve 21 presses the sealing rubber ring, so that the sleeve 21 is connected to the bottom of the connecting seat 20, and the external liquid cannot enter the interior of the connecting seat 20, thereby preventing the five-axis servo motor 7 from being soaked in liquid, and further improving the structural airtightness and waterproof effect of the five-axis turntable.

[0039] In order to further improve the waterproof effect of the five-axis turntable, the base 1 also includes a waterproof shell 12, which is used to cover the auxiliary support platform 11. The waterproof shell 12 can prevent the bearing 110 in the auxiliary support platform 11 from being soaked in external liquid, thereby increasing the service life of the bearing 110.

[0040] See attached Figure 3 and attached Figure 4A wiring hole 204 is provided inside the secondary connecting section 203, and the wiring hole 204 connects the lower mounting groove 201 and the end of the secondary connecting section 203, so that the wires of the five-axis servo motor 7 can pass through the wiring hole 204 to the waterproof shell 12. Specifically, the wiring hole 204 is tilted toward the lower mounting groove 201, and the wires of the five-axis servo motor 7 can pass through the secondary connecting section 203 and be placed in the waterproof shell 12 through the wiring hole 204, so that the wires of the five-axis servo motor 7 will not interfere with the tilting and swinging of the turntable 2, and the wiring hole 204 is tilted, so that when the wires are guided into the wiring hole 204 by the lower mounting groove 201, the wires will not have a large fold angle, thereby avoiding the situation where the wires are bent for a long time, resulting in a reduction in service life and transmission efficiency.

[0041] In order to ensure that the wires of the five-axis servo motor 7 can be smoothly connected to the CNC center of the machine tool and external liquid cannot enter the waterproof shell 12, an L-shaped outlet tube 120 is provided on the side wall of the waterproof shell 12 of the present embodiment. The opening of the L-shaped outlet tube 120 is set downward, so that the wires of the five-axis servo motor 7 can be placed in the outside through the L-shaped outlet tube 120. The L-shaped outlet tube 120 with the opening facing downward prevents the coolant from entering the waterproof shell 12 through the L-shaped outlet tube 120 when the five-axis turntable is used on the machine tool.

[0042] See attached Figure 5 A plurality of wire buckles 211 are installed on one side wall of the sleeve 21 near the wire outlet hole, and the wire buckles 211 are used to fix the wires. By fixing the wires on the wire buckles 211, the wires are closely attached to the inner wall of the sleeve 21 for routing, which improves the neatness of the wires in the sleeve 21, and also prevents the wires from wrapping around the five-axis servo motor 7 and interfering with the heat dissipation of the five-axis servo motor 7 itself.

[0043] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model 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 utility model more thorough and comprehensive. Although the utility model 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 replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A five-axis turntable, characterized in that: include: Base, turntable and workpiece chuck; The base is provided with a main support platform and a secondary support platform alternately arranged, the turntable is rotatably mounted between the main support platform and the secondary support platform, the main support platform is provided with a roller cam reducer and a four-axis servo motor for driving the roller cam reducer, the roller cam reducer is fixedly connected to the end of the turntable, driving the turntable to tilt and swing between the main support platform and the secondary support platform; The turntable is provided with a harmonic reducer and a five-axis servo motor for driving the harmonic reducer; The workpiece clamping disc is rotatably mounted on the top of the turntable, and the workpiece clamping disc is fixedly connected to the harmonic reducer, and the workpiece clamping disc is driven to rotate by the harmonic reducer.

2. The five-axis turntable according to claim 1, characterized in that: The turntable comprises a connecting seat and a sleeve; The connecting seat includes a main connecting plate and a secondary connecting end, wherein the main connecting plate is provided with a plurality of bolt mounting holes for connecting with the roller cam reducer; the secondary connecting end is used for rotationally connecting with the secondary supporting platform; An upper mounting groove and a lower mounting groove are provided in the middle of the connecting seat, the upper mounting groove is used to fix the harmonic reducer, and the lower mounting groove is used to fix the five-axis servo motor, and the output shaft of the five-axis servo motor is fixedly connected to the harmonic reducer; The sleeve is installed at the bottom of the connecting seat and covers the lower installation groove.

3. The five-axis turntable according to claim 2, characterized in that: The auxiliary supporting platform is provided with a bearing for connecting with the auxiliary connecting end.

4. The five-axis turntable according to claim 3, characterized in that: The base also includes a waterproof shell, which is used to cover the auxiliary support platform.

5. The five-axis turntable according to claim 4, characterized in that: A wiring hole is provided inside the secondary connection end, and the wiring hole communicates with the lower mounting groove and the end of the secondary connection end, so that the wires of the five-axis servo motor can pass through the wiring hole into the waterproof shell.

6. The five-axis turntable according to claim 4, characterized in that: The side wall of the waterproof shell is provided with an L-shaped outlet tube, and the opening of the L-shaped outlet tube is arranged downward, so that the wires of the five-axis servo motor can be placed in the outside through the L-shaped outlet tube.

7. The five-axis turntable according to claim 5, characterized in that: The wiring hole is inclined toward the lower mounting groove.

8. The five-axis turntable according to claim 4, characterized in that: A plurality of wire buckles are installed on a side wall of the sleeve close to the wire outlet hole, and the wire buckles are used to fix the wires.

9. The five-axis turntable according to claim 2, characterized in that: It also includes a sealing rubber ring. The connecting seat is provided with an annular groove around the notch of the lower mounting groove. The annular groove is used to place the sealing rubber ring. When the sleeve is connected to the connecting seat, the end wall of the sleeve presses the sealing rubber ring.

10. The five-axis turntable according to claim 2, characterized in that: The workpiece clamping plate is provided with a plurality of T-shaped external grooves and a plurality of workpiece connecting holes.

Images