Double-shaft turntable system with encoder mounting structure

Abstract

The utility model discloses a double-shaft rotary table system with an encoder installation structure, which comprises an encoder, an encoder mandrel, an encoder base assembly and a locking nut, the inner end of the encoder mandrel is fixedly connected with a rotary mandrel of the double-shaft rotary table system, the encoder base assembly is fixedly connected with a base of the double-shaft rotary table system, and the locking nut is fixedly connected with the encoder mandrel. The outer end of the encoder mandrel extends out of the end of the double-shaft rotary table system and then is provided with the encoder, a rotary inner ring of the encoder is fixedly connected to the outer end of the encoder mandrel in a sleeved mode, and the shaft section, located between the encoder and the end of the double-shaft rotary table system, of the encoder mandrel is rotationally arranged on the encoder base assembly in a sleeved mode through a bearing. The end portion of the outer end of the encoder mandrel is connected with a locking nut, the inner end of the locking nut tightly presses a rotating inner ring of the encoder, and the encoder is fixedly connected to the encoder base assembly. According to the double-shaft rotary table system, installation of the encoder can be achieved, and installation can be achieved in an axial and circumferential double-fixing mode.

Description

Technical Field

[0001] This utility model relates to the field of dual-axis rotary table systems, specifically a dual-axis rotary table system with an encoder mounting structure. Background Technology

[0002] The worktable is a crucial component of a machining center, used to fix the workpiece in the correct position and prevent displacement during machining. Most machining centers on the market use fixed worktables, which cannot be adjusted in angle or position, making workpiece clamping and measurement inconvenient and increasing uncertainty and risk during machining. Furthermore, for high-precision and high-efficiency machining tasks, they fail to provide sufficient convenience and accuracy.

[0003] To address this issue, the inventors of this application developed a dual-axis rotary table system. This system can rotate and tilt in both vertical and horizontal directions, enabling multi-faceted machining of complex curved workpieces in a single setup, significantly improving machining efficiency and product quality. During the development process, an encoder was specifically added. This encoder, based on feedback from the encoder's direction, position, and speed on the coordinate axes, drives the system's motor and the rotary table's working parts to rotate around the X-axis by a given angle.

[0004] It is evident that the encoder setup is particularly important in a dual-axis rotary table system. The problem that the inventors of this application urgently need to solve is how to mount the encoder onto the rotating spindle of the system in a way that fixes it both axially and circumferentially through a mounting structure. Utility Model Content

[0005] The purpose of this invention is to provide a dual-axis rotary table system with an encoder mounting structure to solve the problem of how to mount the encoder onto the rotating spindle of the system in a fixed manner in both the axial and circumferential directions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-axis turntable system with an encoder mounting structure, comprising an encoder, an encoder spindle, an encoder base assembly, and a locking nut. The inner end of the encoder spindle is fixedly connected to the rotating spindle of the dual-axis turntable system. The encoder base assembly is fixedly connected to the base of the dual-axis turntable system. The encoder is mounted on the outer end of the encoder spindle after it extends out of the end of the dual-axis turntable system. The rotating inner ring of the encoder is fixedly sleeved on the outer end of the encoder spindle. The shaft segment on the encoder spindle located between the encoder and the end of the dual-axis turntable system is rotatably mounted on the encoder base assembly via a bearing. A locking nut is connected to the outer end of the encoder spindle. The inner end of the locking nut tightly presses against the rotating inner ring of the encoder. The encoder is fixedly connected to the encoder base assembly.

[0007] Preferably, the encoder base assembly includes an encoder base and a connecting inner ring. The encoder base is fixedly connected to the base of the dual-axis turntable system, and the connecting inner ring is fixedly connected to the encoder base. The shaft segment on the encoder spindle located between the encoder and the end of the dual-axis turntable system is rotatably fitted onto the connecting inner ring via a bearing.

[0008] Preferably, the encoder base has symmetrical mounting arms that extend radially, and the mounting arms are fixedly connected to the base of the dual-axis turntable system.

[0009] Preferably, the end of the connecting inner ring that mates with the encoder base is constructed with a first end wall, a second end wall, and a third end wall in sequence, and the end of the encoder base that mates with the connecting inner ring is constructed with a fourth end wall and a fifth end wall in sequence, wherein the third end wall corresponds to the fifth end wall, the second end wall corresponds to the fourth end wall, and the first end wall corresponds to the end of the encoder.

[0010] Preferably, the inner end of the encoder spindle is configured as a columnar mounting base, while the rotating spindle has an annular mounting end at the mounting inner hole for fixed connection to the mounting base.

[0011] Preferably, the locking nut has an inner clamping wall and an outer clamping wall, and the rotating inner ring of the encoder has an inner bearing wall and an outer bearing wall. The inner clamping wall is used to clamp the inner bearing wall, and the outer clamping wall is used to clamp the outer bearing wall.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model achieves fixed installation of the encoder by using the combination of encoder spindle, encoder base assembly and locking nut. It achieves simultaneous axial and circumferential fixation. Furthermore, by utilizing the characteristic that the inner rotating ring of the encoder can rotate relative to the encoder under the action of external force, the inner rotating ring can rotate with the encoder spindle after being fixedly sleeved on the encoder spindle, without affecting the fixation of the encoder. Attached Figure Description

[0014] Figure 1 This is a partial cross-sectional schematic diagram of a dual-axis rotary table system in one embodiment (mainly showing the internal structure at the encoder mounting structure);

[0015] Figure 2 This is a partial three-dimensional structural diagram of a dual-axis rotary table system in one embodiment (mainly showing the part with the encoder mounting structure);

[0016] Figure 3 This is a three-dimensional structural diagram of the encoder base of a dual-axis rotary table system in one embodiment;

[0017] Figure 4 This is a three-dimensional structural diagram of the connecting inner ring of a dual-axis turntable system in one embodiment;

[0018] Figure 5 This is a cross-sectional schematic diagram of the locking nut of a dual-axis rotary table system in one embodiment;

[0019] Figure 6 This is a three-dimensional structural diagram of the encoder of a dual-axis rotary table system in one embodiment.

[0020] The figure shows: encoder 1, encoder spindle 2, mounting base 21, locking nut 3, inner clamping wall 31, outer clamping wall 32, rotating spindle 4, annular mounting end 41, base 5, rotating inner ring 6, inner bearing wall 61, outer bearing wall 62, bearing 7, encoder base 8, fourth end wall 81, fifth end wall 82, connecting inner ring 9, first end wall 91, second end wall 92, third end wall 93, mounting arm 10. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model discloses a dual-axis rotary table system with an encoder mounting structure, which mainly solves the problem of encoder fixing and installation, especially the problem of fixing the encoder to the rotating spindle of the system in both axial and circumferential directions.

[0023] The following is based on Figure 1-6 The illustrated embodiment details a dual-axis rotary table system with an encoder mounting structure, comprising an encoder 1, an encoder spindle 2, an encoder base assembly, and a locking nut 3. The inner end of the encoder spindle 2 is fixedly connected to the rotating spindle 4 of the dual-axis rotary table system, and the encoder base assembly is fixedly connected to the base 5 of the dual-axis rotary table system. It should be noted that the rotating spindle 4 is the core component of the dual-axis rotary table system and is capable of rotation. The base 5 is a fixed component that does not rotate, providing support and mounting positions for various components. After the inner end of the encoder spindle 2 is fixedly connected to the rotating spindle 4 of the dual-axis rotary table system, the rotation of the rotating spindle 4 drives the encoder spindle 2 to rotate.

[0024] To facilitate the installation of encoder 1, the encoder 1 is mounted after the outer end of the encoder spindle 2 extends beyond the end of the dual-axis turntable system. The rotating inner ring 6 of the encoder 1 is fixedly sleeved on the outer end of the encoder spindle 2. In this embodiment, the provided encoder 1 has a rotating inner ring 6 that can rotate relative to the encoder 1. This rotating inner ring 6 can rotate relative to the encoder 1 under the action of external force. It should be noted that... Figure 1 In order to simplify the display of the internal structure of encoder 1, the rotating inner ring 6 is not specifically distinguished from encoder 1.

[0025] The shaft segment of the encoder spindle 2 located between the encoder 1 and the end of the dual-axis rotary table system is rotatably mounted on the encoder base assembly via a bearing 7. In this way, the encoder spindle 2 can be rotatably mounted on the encoder base assembly via the bearing 7, and can also rotate relative to the encoder base assembly, thus not hindering the free rotation of the encoder spindle 2.

[0026] The outer end of the encoder spindle 2 is also connected to a locking nut 3. The inner end of the locking nut 3 presses tightly against the rotating inner ring 6 of the encoder 1, and the encoder 1 is fixedly connected to the encoder base assembly. In this way, the encoder 1 is indirectly fixed to the base 5 of the dual-axis turntable system through the encoder base assembly, thereby achieving simultaneous axial and circumferential fixation of the encoder 1. At this time, the end of the encoder spindle 2 is also threadedly connected to the locking nut 3. Under the action of the locking nut 3, the rotating inner ring 6 is pressed tightly, thereby indirectly driving the rotating inner ring 6 to rotate together with the encoder spindle 2.

[0027] As can be seen, through the coordinated arrangement of the above components, the encoder 1 can be fixed in both the axial and circumferential directions at the same time. Under the rotation of the rotating spindle 4, the encoder spindle 2 rotates along with it, which in turn drives the rotating inner ring 6 to rotate. At this time, due to the presence of the bearing 7, even if the encoder 1 is fixed in both the circumferential and axial directions, it will not interfere with the rotation of the rotating inner ring 6.

[0028] In this embodiment, the encoder base assembly is specifically configured as follows: The encoder base assembly includes an encoder base 8 and a connecting inner ring 9. The encoder base 8 is fixedly connected to the base 5 of the dual-axis rotary table system. The connecting inner ring 9 is fixedly connected to the encoder base 8. The shaft segment of the encoder spindle 2 located between the encoder 1 and the end of the dual-axis rotary table system (unmarked) is rotatably fitted onto the connecting inner ring 9 via the bearing 7. This special configuration of the connecting inner ring 9 simplifies the overall structure of the encoder base 8 and facilitates its manufacturing. In this embodiment, the encoder base assembly is constructed as two independent components, simplifying the structure and facilitating the fitting of the bearing 7 onto the relatively small, ring-shaped connecting inner ring 9.

[0029] Regarding the specific construction of the encoder base 8, considering cost savings and structural simplification, the encoder base 8 has symmetrical mounting arms 10 extending radially. The mounting arms 10 are fixedly connected to the base 5 of the dual-axis rotary table system. The mounting arms 10 also have holes to reduce material usage, thereby saving cost and weight. The mounting arms 10, on the one hand, achieve a fixed connection for the encoder base 8, and on the other hand, simplify its structure, avoiding the need for radial extension of the encoder base 8 around its entire circumference to achieve a fixed connection.

[0030] To achieve a snug connection between the two independent components, the encoder base 8 and the connecting inner ring 9, while also ensuring proper positioning, in this embodiment, the end of the connecting inner ring 9 that mates with the encoder base 8 is sequentially constructed with a first end wall 91, a second end wall 92, and a third end wall 93. Similarly, the end of the encoder base 8 that mates with the connecting inner ring 9 is sequentially constructed with a fourth end wall 81 and a fifth end wall 82. The third end wall 93 corresponds to the fifth end wall 82, the second end wall 92 corresponds to the fourth end wall 81, and the first end wall 91 corresponds to the end of the encoder 1. By using these end walls, the existing structure of using a single end wall for connection is avoided. This embodiment employs a multi-end wall snug connection, forming axial lateral walls between adjacent end walls. This lateral wall combination structure achieves both lateral positioning and a double fixing effect of end wall snugness.

[0031] Considering that the encoder spindle 2 is a long cylindrical shape, which is not convenient for fixed connection, the encoder spindle 2 has been specially optimized and improved in this embodiment. Specifically, the inner end of the encoder spindle 2 is constructed into a columnar mounting base 21, while the rotating spindle 4 has an annular mounting end 41 at the mounting inner hole for fixed connection to the mounting base 21.

[0032] To increase the pressure of the locking nut 3 on the rotating inner ring 6, the locking nut 3 has an inner pressure wall 31 and an outer pressure wall 32. The rotating inner ring 6 of the encoder 1 has an inner bearing wall 61 and an outer bearing wall 62. The inner pressure wall 31 is used to press the inner bearing wall 61, and the outer pressure wall 32 is used to press the outer bearing wall 62.

[0033] When fixed, encoder 1 is linked with encoder spindle 2 by rotating inner ring 6, and is also fixedly connected to base 5 of dual-axis turntable system by encoder base assembly, thus achieving dual fixation in both axial and circumferential directions.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-axis turntable system having an encoder mounting structure, characterized by: The system includes an encoder, an encoder spindle, an encoder base assembly, and a locking nut. The inner end of the encoder spindle is fixedly connected to the rotating spindle of a dual-axis rotary table system. The encoder base assembly is fixedly connected to the base of the dual-axis rotary table system. The encoder is mounted on the outer end of the encoder spindle after it extends out of the end of the dual-axis rotary table system. The rotating inner ring of the encoder is fixedly sleeved on the outer end of the encoder spindle. The shaft segment on the encoder spindle located between the encoder and the end of the dual-axis rotary table system is rotatably mounted on the encoder base assembly via a bearing. A locking nut is connected to the outer end of the encoder spindle, and the inner end of the locking nut presses tightly against the rotating inner ring of the encoder. The encoder is fixedly connected to the encoder base assembly.

2. The dual-axis turntable system with an encoder mounting structure according to claim 1, characterized in that: The encoder base assembly includes an encoder base and a connecting inner ring. The encoder base is fixedly connected to the base of the dual-axis rotary table system, and the connecting inner ring is fixedly connected to the encoder base. The shaft segment on the encoder spindle located between the encoder and the end of the dual-axis rotary table system is rotatably fitted onto the connecting inner ring via a bearing.

3. A dual-axis rotary table system with an encoder mounting structure according to claim 2, characterized in that: The encoder base has symmetrical mounting arms that extend radially and are fixedly connected to the base of the dual-axis rotary table system.

4. A dual-axis rotary table system with an encoder mounting structure according to claim 2 or 3, characterized in that: The end of the connecting inner ring that mates with the encoder base is sequentially constructed with a first end wall, a second end wall, and a third end wall. The end of the encoder base that mates with the connecting inner ring is sequentially constructed with a fourth end wall and a fifth end wall. The third end wall corresponds to the fifth end wall, the second end wall corresponds to the fourth end wall, and the first end wall corresponds to the end of the encoder.

5. A dual-axis rotary table system with an encoder mounting structure according to claim 1, characterized in that: The inner end of the encoder spindle is constructed into a columnar mounting base, while the rotating spindle has an annular mounting end constructed at the mounting inner hole for the mounting base to be fixedly connected.

6. A dual-axis rotary table system with an encoder mounting structure according to claim 1, characterized in that: The locking nut has an inner clamping wall and an outer clamping wall, and the rotating inner ring of the encoder has an inner bearing wall and an outer bearing wall. The inner clamping wall is used to clamp the inner bearing wall, and the outer clamping wall is used to clamp the outer bearing wall.

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