A direct-drive spindle encoder

Abstract

This utility model discloses a direct-drive spindle encoder, including a base, a reference base, an encoder mounting plate, a spindle encoder, a spindle, a spindle bearing, a first connecting shaft, a second connecting shaft, a transmission key, and a coupling. The base has a reference base, and the reference base has an encoder mounting plate. The spindle encoder is mounted on the reference base via the encoder mounting plate. The reference base is connected to the spindle via the spindle bearing. The spindle has a first connecting shaft at its center, which is connected to the second connecting shaft. The second connecting shaft is connected to the spindle encoder, transmitting real-time speed and position data of the spindle to the spindle encoder. This utility model, by adopting a transmission method that directly connects the spindle encoder to the spindle, shortens the transmission chain, significantly reduces the number of transmission parts, simplifies the installation process, and is maintenance-free, thus reducing operating and manufacturing costs.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, and specifically relates to a direct-drive spindle encoder. Background Technology

[0002] Currently, the most common connection method for spindle encoders is an external belt drive layout, connecting the spindle to the encoder via a toothed belt or synchronous belt. The accuracy of the encoder's final output value using this structure is significantly affected by the machining precision of each component in the transmission chain, as well as the belt's thermal elongation and wear. In some high-precision applications, such as C-axis indexing drilling on machine tools, belt-driven encoders cannot guarantee accurate and efficient output of spindle speed and position data, greatly impacting the overall accuracy of the machine tool. Furthermore, belt drives also suffer from long transmission chains, numerous parts, complex installation, and the need for regular maintenance, increasing both operating and manufacturing costs. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the shortcomings of the prior art, this utility model provides a direct-drive spindle encoder.

[0004] Technical solution: A direct-drive spindle encoder, comprising a base, a reference base, an encoder mounting plate, a spindle encoder, a spindle, a spindle bearing, a first connecting shaft, a second connecting shaft, a transmission key, and a coupling;

[0005] The base is provided with a reference seat, and the reference seat is provided with an encoder mounting plate. The main shaft encoder is mounted on the reference seat through the encoder mounting plate. The reference seat is connected to the main shaft through a main shaft bearing.

[0006] The main shaft has a first connecting shaft at its center, which is connected to a second connecting shaft. The second connecting shaft is connected to the main shaft encoder to transmit the real-time speed and position data of the main shaft to the main shaft encoder.

[0007] As an optimization: the spindle encoder is located directly below the spindle.

[0008] As an optimization: the first connecting shaft is connected to the second connecting shaft via a transmission key.

[0009] As an optimization: the second connecting shaft is connected to the main shaft encoder via a coupling.

[0010] Beneficial effects: This invention shortens the transmission chain and significantly reduces the number of transmission parts by directly connecting the main shaft encoder to the main shaft, simplifying the installation process. It also features maintenance-free operation, reducing operating and manufacturing costs. Furthermore, the direct-drive structure eliminates transmission errors caused by belt thermal stretching and wear, improving the accuracy and precision retention of the encoder output data.

[0011] Compared to traditional belt drives, the direct-drive structure of this invention eliminates the downtime required to replace worn and aged belts after prolonged use, thereby reducing machine operating costs and improving processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0014] Among them, 1-base, 2-reference base, 3-encoder mounting plate, 4-main spindle encoder, 5-main spindle, 6-main spindle bearing, 7-first connecting shaft, 8-second connecting shaft, 9-transmission key, 10-coupling. Detailed Implementation

[0015] Example

[0016] like Figure 1-2 As shown, a direct-drive spindle encoder includes a base 1, a reference base 2, an encoder mounting plate 3, a spindle encoder 4, a spindle 5, a spindle bearing 6, a first connecting shaft 7, a second connecting shaft 8, a transmission key 9, and a coupling 10.

[0017] The base 1 is provided with a reference seat 2, and the reference seat 2 is provided with an encoder mounting plate 3. The main shaft encoder 4 is mounted on the reference seat 2 via the encoder mounting plate 3 and is located directly below the main shaft 5. The reference seat 2 is connected to the main shaft 5 via a main shaft bearing 6. The main shaft 5 has a first connecting shaft 7 at its center, which is connected to a second connecting shaft 8 via a transmission key 9. The second connecting shaft 8 is connected to the main shaft encoder 4 via a coupling 10, transmitting the real-time speed and position data of the main shaft 5 to the main shaft encoder 4.

[0018] This invention shortens the transmission chain and significantly reduces the number of transmission parts by directly connecting the main shaft encoder to the main shaft, simplifying the installation process. It also features maintenance-free operation, reducing operating and manufacturing costs. Furthermore, the direct-drive structure eliminates transmission errors caused by belt thermal stretching and wear, improving the accuracy and precision retention of the encoder output data.

[0019] Compared to traditional belt drives, the direct-drive structure of this invention eliminates the downtime required to replace worn and aged belts after prolonged use, thereby reducing machine operating costs and improving processing efficiency.

[0020] The foregoing description clearly and completely illustrates the technical solutions in the embodiments of this utility model, enabling those skilled in the art to better understand the advantages and features of this utility model, thereby providing a clearer definition of the scope of protection of this utility model. The embodiments described in this utility model are merely some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

Claims

1. A direct connect spindle encoder characterized by: It includes a base (1), a reference base (2), an encoder mounting plate (3), a main shaft encoder (4), a main shaft (5), a main shaft bearing (6), a first connecting shaft (7), a second connecting shaft (8), a transmission key (9), and a coupling (10); The base (1) is provided with a reference seat (2), the reference seat (2) is provided with an encoder mounting plate (3), and the main shaft encoder (4) is mounted on the reference seat (2) through the encoder mounting plate (3); the reference seat (2) is connected to the main shaft (5) through the main shaft bearing (6); The main shaft (5) has a first connecting shaft (7) at its center. The first connecting shaft (7) is connected to a second connecting shaft (8). The second connecting shaft (8) is connected to the main shaft encoder (4) to transmit the real-time speed and position data of the main shaft (5) to the main shaft encoder (4).

2. The direct-connect spindle encoder of claim 1, wherein: The main shaft encoder (4) is located directly below the main shaft (5).

3. The direct-drive spindle encoder according to claim 1, characterized in that: The first connecting shaft (7) is connected to the second connecting shaft (8) via a transmission key (9).

4. The direct-connect spindle encoder of claim 1, wherein: The second connecting shaft (8) is connected to the main shaft encoder (4) via a coupling (10).

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