Servo motor

Abstract

The utility model discloses a servo motor, which belongs to the technical field of motor structures and comprises a casing. The power assembly is installed in the machine shell; the brake assembly is installed in the machine shell, and the brake assembly is connected with the power assembly and used for braking the power assembly; the first end of the brake control line is connected with the brake assembly; the second end of the brake control line penetrates through the machine shell end to enter the wire holder. The first end of the reserved line is connected with the second end of the brake control line; and a connector, the second end of the reserved wire passing through the housing and entering the connector. According to the utility model, the brake control line and the power control line of the servo motor are integrated on the connector in a unified manner, a brake connector does not need to be independently arranged, the convenience of wiring operation is considered, and an independent wire holder is arranged for wiring, so that the convenience and accuracy of wiring operation are improved while the equipment cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of motor structure technology, and in particular to servo motors. Background Technology

[0002] A servo motor is the engine that controls the operation of mechanical components in a servo system. The rotor speed of a servo motor is controlled by the input signal, enabling rapid response. When used as an actuator in automatic control systems, servo motors possess characteristics such as a small electromechanical time constant and high linearity, converting received electrical signals into angular displacement or angular velocity output on the motor shaft. Therefore, servo motors can precisely control the rotation of the motor, thereby achieving accurate positioning. Based on these characteristics, servo motors are widely used in industrial automation equipment and high-precision control applications, such as robots, CNC machine tools, and semiconductor equipment.

[0003] Servo motors typically have a braking function, meaning that by incorporating a brake (also called a brake unit) within the servo motor, the brake can quickly bring the motor to a stop according to commands from the servo system. Servo motor brakes are primarily used as a safety measure to ensure that equipment is not damaged or injured due to prolonged motor rotation when it has stopped operating.

[0004] In actual production, the motor and brake components of a servo motor require separate control lines, making the installation process cumbersome. Therefore, a more convenient wiring structure is needed. Currently, commercially available products often connect the power and brake lines with separate openings, but this requires multiple control lines, resulting in complex wiring. Another approach is to route the brake line from the power line outlet and connect it to the external control system, but this leads to tangled wiring, increasing the risk of assembly errors. Furthermore, since the wiring is located inside the motor housing, connecting the brake line is also difficult. Therefore, developing a servo motor structure that is easier to install and minimizes installation errors is a pressing issue for those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a new servo motor structure that can integrate the power line and brake line, and facilitate installation and wiring.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A servo motor includes: a housing; a power assembly installed within the housing; and a brake assembly installed within the housing and connected to the power assembly for braking the power assembly; further comprising: a brake control cable with a first end connected to the brake assembly; a terminal block with a second end of the brake control cable passing through the housing and entering the terminal block; a reserved wire with a first end connected to the second end of the brake control cable; and a connector with the second end of the reserved wire passing through the housing and entering the connector.

[0008] In the aforementioned servo motor, the connector and the terminal block are disposed close to each other on the same side of the housing, and the terminal block is closer to the bottom end of the servo motor than the connector.

[0009] In a preferred embodiment of this utility model, the second end of the brake control line and the first end of the reserved line are connected by welding, twisting, or compression, and the wire ends at the connection are insulated with heat shrink tubing.

[0010] In another preferred embodiment of this utility model, both the second end of the brake control line and the first end of the reserved line are provided with crimp terminals, and the second end of the brake control line and the first end of the reserved line are connected by crimp terminals.

[0011] In the aforementioned servo motor, the second end of the reserved wire is connected to the brake control signal pin reserved in the connector.

[0012] In a preferred embodiment of this utility model, the connector is an aviation plug.

[0013] The aforementioned servo motor also includes a wiring cover that covers the wiring socket.

[0014] In a preferred embodiment of this utility model, the wiring cover includes a top cover and a threaded portion, the diameter of the threaded portion being smaller than that of the top cover and disposed at the bottom of the top cover; the wiring cover is connected to the corresponding thread inside the wiring seat through the threaded portion.

[0015] In a preferred embodiment of this utility model, a hexagonal recess is provided on the top of the top cover.

[0016] Beneficial effects: This utility model integrates the brake control line and power control line of the servo motor into a single connector, eliminating the need for a separate brake connector. Furthermore, considering the convenience of wiring operations, a separate terminal block is provided for wiring, which saves equipment costs while improving the convenience and accuracy of wiring operations.

[0017] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the servo motor of this utility model.

[0019] Figure 2 This is a three-dimensional schematic diagram of the servo motor of this utility model with the wiring cover open.

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of section M in the middle.

[0021] Figure 4 This is a side view of the servo motor of this utility model.

[0022] Figure 5 for Figure 4 A cross-sectional view of the NN section. Detailed Implementation

[0023] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, back, bottom, and top, are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model.

[0024] Figure 1 This is a three-dimensional schematic diagram of the servo motor of this utility model. Figure 1 As shown, the definition is as follows Figure 1 The servo motor 100 has a top end with a motor shaft on its upper side and a bottom end on its lower side. The servo motor 100 includes a housing 110, a connector 120, a terminal block 130, and a terminal cover 140. The connector 120 and the terminal block 130 are both located on the side of the housing 110 and protrude from the housing 110. The terminal block 130 is closer to the bottom end of the servo motor 100 than the connector 120. The terminal cover 140 covers the terminal block 130.

[0025] Preferably, the terminal block 130 is close to the connector 120 and is located on the same side of the housing 110 as the connector 120, in order to reduce the length of the lead wires used subsequently.

[0026] Figure 2 This is a three-dimensional schematic diagram of the servo motor's wiring cover in the open state according to this utility model. Figure 2 As shown, the terminal block 130 is cylindrical and protrudes from the side of the housing 110. The terminal block 130 has a threaded wiring hole 131 on its inner wall near the top, and the top of the terminal block 130 is a platform 132.

[0027] The wiring cover 140 includes a top cover 141 and a threaded portion 142. The threaded portion 142 is disposed at the bottom of the top cover 141, and the diameter of the threaded portion 142 is smaller than that of the top cover 141. The thread of the threaded portion 142 corresponds to the thread of the wiring hole 131, and the wiring cover 140 is threadedly connected to the wiring hole 131 inside the wiring base 130 through the engagement of the threaded portion 142.

[0028] Preferably, the top of the top cover 141 is provided with a hexagonal recess 143, which is a tool hole adapted to an internal hex wrench, making it convenient for operators or robots to use tools for assembly.

[0029] Preferably, the top cover 141 of the wiring cover 140 is provided with vertical stripes 144 on its side. The vertical stripes 144 are to increase friction during manual disassembly and assembly, making it easier for operators to perform the operation.

[0030] ‌ Figure 3 for Figure 2 An enlarged schematic diagram of section M. (See attached image.) Figure 3 As shown, the servo motor 100 also includes a brake control line 150 and a brake assembly 160. The brake assembly 160 is disposed inside the housing 110. The first end of the brake control line 150 is connected to the brake assembly 160, and the second end of the brake control line 150 is disposed inside the terminal block 130 for connection to the reserved wire 121 of the connector 120. The reserved wire 121 of the connector 120 (for ease of showing the position of the brake control line 150) Figure 3 The reserved wires of connector 120 are not shown in the diagram, but their specific location can be seen in the image. Figure 5The first end of the pre-installed wire 121 passes through the inside of the housing 110 and connects to the terminal block 130, while the second end connects to the corresponding pin of the connector 120. The operator pulls the first end of the pre-installed wire 121 connected to the connector 120 to the terminal block 130. With the terminal cover 140 open, the brake control wire 150 is soldered to the first end of the pre-installed wire 121 inside the terminal block 130. After heat-shrink tubing insulation at the solder joint, the connection is returned to the terminal block 130, the terminal cover 140 is replaced, and tightened to complete the brake wire connection process. Besides soldering, the brake control wire 150 and the pre-installed wire 121 can also be connected using methods including but not limited to twisted connections, crimped connections, or by using crimp terminals for quick wiring at the ends of the brake control wire 150 and the pre-installed wire 121.

[0031] Preferably, an O-ring is provided between the wiring cover 140 and the wiring base 130, and the bottom of the top cover 141 cooperates with the platform 132 on the top of the wiring base 130 to press and fix the O-ring, thereby improving the overall sealing effect of the servo motor 100.

[0032] Figure 4 This is a side view of the servo motor of this utility model. Figure 4 As shown, the connector 120 has two brake terminals for connecting the two brake control lines 150. Preferably, the connector 120 can be an aviation plug, such as a 9-pin plug of the 20-18P specification, and the two brake control lines 150 are respectively connected to the H pin and G pin of the plug.

[0033] Figure 5 for Figure 4 A cross-sectional view of the NN section. (See diagram.) Figure 5 As shown, the servo motor 100 also includes a brake assembly 160 and a power assembly 170. Both the brake assembly 160 and the power assembly 170 are installed within the housing 110, with the brake assembly 160 connected to the tail end of the power assembly 170 for braking the power assembly 170. A connector 120 is located on the housing 110 near the mounting position of the power assembly 170. Other pins of the connector 120 (i.e., pins other than the reserved wire 121) are connected to the power assembly 170 for power supply and control. A terminal block 130 is located on the housing 110 near the mounting position of the brake assembly 160. The first end of the brake control wire 150 is connected to the brake assembly 160. After the second end of the brake control wire 150 is connected to the first end of the reserved wire 121 within the terminal block 130, the terminal cover 140 is replaced.

[0034] The servo motor 100 can be installed by referring to the following steps.

[0035] Step S1: Install connector 120 onto housing 110, and pull the first end of reserved wire 121, which is connected to the reserved brake control signal pin in connector 120, to the position of terminal block 130 inside housing 110.

[0036] Step S2: Install the power assembly 170 inside the mounting housing 110 and connect the power assembly 170 to the remaining pins in the connector 120.

[0037] Step S3: Install the brake assembly 160 at the rear of the power assembly 170, and pull the second end of the brake control line 150 inside the housing 110 to the position of the terminal block 130.

[0038] Step S4: Connect the first end of the reserved wire 121 to the second end of the brake control wire 150 at the terminal block 130. After insulating the wire ends at the connection with heat shrink tubing, insert the wire ends into the terminal block 130 and cover it with the terminal cover 140.

[0039] In summary, this invention integrates the brake control line and power control line of the servo motor onto a single connector, allowing the power control line and brake control line to directly interface with external devices through a single connector, eliminating the need for a separate brake connector and saving on equipment costs. Furthermore, considering the ease of wiring operations, a separate terminal block is provided for wiring, improving the convenience and accuracy of the wiring process.

[0040] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A servo motor, comprising: a housing; a power assembly installed within the housing; and a brake assembly installed within the housing, the brake assembly being connected to the power assembly for braking the power assembly; Its features are, It also includes, Brake control line, the first end of which is connected to the brake assembly; The second end of the brake control line passes through the housing end and enters the terminal block; A reserved wire, the first end of which is connected to the second end of the brake control wire; and... The connector, wherein the second end of the reserved wire passes through the housing and enters the connector.

2. The servo motor as described in claim 1, characterized in that, The connector and the terminal block are disposed close to each other on the same side of the housing, with the terminal block being closer to the bottom end of the servo motor than the connector.

3. The servo motor as described in claim 1, characterized in that, The second end of the brake control line is connected to the first end of the reserved line by welding, twisting, or compression, and the wire ends at the connection are insulated with heat shrink tubing.

4. The servo motor as described in claim 1, characterized in that, Both the second end of the brake control line and the first end of the reserved line are provided with crimp terminals, and the second end of the brake control line and the first end of the reserved line are connected by crimp terminals.

5. The servo motor as described in claim 1, characterized in that, The second end of the reserved wire is connected to the brake control signal pin reserved in the connector.

6. The servo motor as described in claim 1, characterized in that, The connector is an aviation plug.

7. The servo motor as described in claim 1, characterized in that, The servo motor also includes a wiring cover that covers the wiring socket.

8. The servo motor as described in claim 7, characterized in that, The wiring cover includes a top cover and a threaded portion, wherein the diameter of the threaded portion is smaller than that of the top cover and is disposed at the bottom of the top cover; The terminal cover is connected to the terminal block via a threaded portion that engages with a corresponding thread inside the terminal block.

9. The servo motor as described in claim 8, characterized in that, The top of the top cover is provided with a hexagonal recess.

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