CN218472981U

CN218472981U - Servo motor

Info

Publication number: CN218472981U
Application number: CN202222653621.2U
Authority: CN
Inventors: 江建斌; 江建敏; 宋祥
Original assignee: Minli Intelligent Technology Zhejiang Co ltd
Current assignee: Minli Intelligent Technology Zhejiang Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-02-10
Anticipated expiration: 2032-10-08

Abstract

The application relates to a servo motor, it includes the casing, is located rotor, stator, pivot, encoder signal disc and encoder PCB board in the casing, the casing includes the rear end cap, and the encoder signal disc is located the rear end cap, the pivot is passed the rear end cap and is connected its characterized in that with the encoder signal disc: the rear end cover is provided with a connecting seat and a fixing hole formed in the connecting seat, the connecting seat is of an annular structure and is coaxial with the rotating shaft, and the fixed encoder PCB is fixedly connected with the connecting seat; the encoder PCB is provided with a plurality of positioning holes and connecting holes, the connecting seat is provided with a plurality of positioning bulges and supporting seats, the positioning bulges correspond to the positioning holes one by one and are embedded in the positioning holes, the supporting seats are provided with mounting holes, and the connecting holes correspond to the mounting holes one by one and are connected through fasteners; the connecting seat is fixedly connected with the surface of the rear end face. This application has the effect of firm installation encoder PCB board.

Description

Servo motor

Technical Field

The application relates to the field of servo motors, in particular to a servo motor.

Background

The servo motor is an open-loop control element servo motor part which converts an electric pulse signal into angular displacement or linear displacement. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled.

At present, a servo motor usually installs an encoder at one end of a rotating shaft, and feeds back a rotation signal of the motor to a controller, and the controller controls the rotation of the rotating shaft of the motor according to the fed-back rotation signal. If the installation of encoder or encoder PCB board is unstable, in the motor use, can not only lead to encoder signal acquisition's deviation because of the vibration produces offset, still can influence signal output's stability, influence encoder life and servo motor's normal operating.

SUMMERY OF THE UTILITY MODEL

In order to improve the firm and stable of encoder PCB board installation, this application provides a servo motor.

The application provides a servo motor adopts following technical scheme:

a servo motor comprises a shell, a rotor, a stator, a rotating shaft, an encoder signal panel and an encoder PCB board, wherein the rotor, the stator, the rotating shaft, the encoder signal panel and the encoder PCB board are positioned in the shell;

the encoder PCB is provided with a plurality of positioning holes and connecting holes, the connecting seat is provided with a plurality of positioning bulges and a supporting seat, the positioning bulges correspond to the positioning holes one by one and are embedded in the positioning holes, the supporting seat is provided with mounting holes, and the connecting holes correspond to the mounting holes one by one and are connected through fasteners;

the connecting seat is fixedly connected with the surface of the rear end face.

Through adopting above-mentioned technical scheme, the connecting seat of loop configuration can fill up out the space for the encoder signal disc, rotates along with the pivot, fixes a position encoder PCB board through the locating hole, can enough play the position calibration effect, and direction error when avoiding the installation can alleviate the problem that produces the displacement to the encoder PCB board because of vibrations such as motor operation again.

Optionally, the number of the positioning bulges is 3, the number of the supporting seats is 4, and the positioning bulges and the supporting seats are arranged at intervals.

Through adopting above-mentioned technical scheme, the location of odd number is protruding, can make wherein do not have the location between two adjacent supporting seats protruding, consequently realizes preventing slow-witted effect, makes the fixed more balanced, steady of encoder PCB board simultaneously, and reaches the stress balance between each connecting piece.

Optionally, the positioning protrusion comprises a positioning section and a connecting section which are integrally formed, and the positioning section and the connecting section are of a rotating body structure which is coaxially arranged.

Through adopting above-mentioned technical scheme, the linkage segment is used for imbedding the locating hole on the encoder PCB board, and location end tip is used for supporting, and 3 protruding cooperations in location can realize smoothly that encoder PCB board and connecting seat take place relative displacement to the injecing of five degrees of freedom.

Optionally, the bottom of the supporting seat and the bottom of the positioning protrusion are both provided with cushion blocks, and each adjacent cushion block is connected into a whole.

Through adopting above-mentioned technical scheme, the design of cushion is according to the high settlement of encoder signal disc, can be used to bed hedgehopping encoder PCB board to play the effect that surrounds the encoder signal disc, reduce the factor interference signal outside the connecting seat, improve the accuracy of encoder.

Optionally, the bottom of the cushion block is of a hollow structure, and a reinforcing piece is embedded in the hollow structure.

Through adopting above-mentioned technical scheme, resources are saved through the setting of strengthening the piece, improves the structural strength and the steadiness of connecting seat.

Optionally, the rear end cover side is equipped with the through wires hole, and one side of fixed encoder PCB board towards the through wires hole all is equipped with the arc recess with one side of connecting seat towards the through wires hole.

By adopting the technical scheme, the wiring and the fixed wiring harness are convenient to walk.

In summary, the present application includes at least one of the following beneficial technical effects:

the encoder PCB board is stably supported, and meanwhile, the assembly efficiency is improved through structural design.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

FIG. 2 is a schematic structural view of the rear end cap in the present embodiment;

FIG. 3 is an assembled schematic view of the rear end cap in the present embodiment;

fig. 4 is a schematic structural view of the connection seat in the embodiment;

fig. 5 is a rear view of the connector holder in the present embodiment;

fig. 6 is a schematic diagram illustrating the connection of the connector holder and the encoder PCB in the present embodiment.

Description of the reference numerals: 1. a housing; 11. a rear end cap; 12. threading holes; 13. a rotating shaft; 21. a coder signal panel; 22. a encoder PCB board; 23. positioning holes; 24. connecting holes; 31. a connecting seat; 32. a fixing hole; 33. a supporting base; 34. a positioning section; 35. a connecting section; 36. a reinforcing sheet; 37. cushion blocks; 38. mounting holes; 39. a hollow structure; 4. an arc-shaped groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a servo motor. Including casing 1, the rotor that is located casing 1, stator, pivot 13, encoder signal disc 21 and encoder PCB board 22, drive encoder signal disc 21 through pivot 13 and rotate, carry out signal acquisition by encoder PCB board 22. Referring to fig. 1-3, the housing 1 includes a rear end cover 11, the encoder signal panel 21 is located in the rear end cover 11, the rotating shaft 13 passes through the rear end cover 11 and is connected to the encoder signal panel 21, the rear end cover 11 is provided with a connecting seat 31 and a fixing hole 32 provided on the connecting seat 31, and the connecting seat 31 is fixed on an end surface of the rear end cover 11 by a bolt. The relative position relation with encoder signal disc 21 is considered to connecting seat 31 in this embodiment, designs into annular structure and with the coaxial setting of pivot 13, improves the signal precision, then passes through bolt fixed connection with fixed encoder PCB board 22 and connecting seat 31, realizes the installation.

Referring to fig. 3-6, the encoder PCB 22 is provided with a plurality of positioning holes 23 and connecting holes 24, the connecting seat 31 is provided with a plurality of positioning protrusions and supporting seats 33, each positioning protrusion corresponds to each positioning hole 23 one by one and is embedded in each positioning hole 23, the supporting seat 33 is provided with mounting holes 38, each connecting hole 24 corresponds to each mounting hole 38 one by one, positioning and fixing are achieved, and positioning is convenient to achieve during mounting. The connecting seat 31 is fixedly connected with the surface of the rear end face by penetrating bolts through the fixing holes 32, and a limiting groove is formed in the rear end face to allow the connecting seat 31 to be embedded in, and the foolproof design is adopted, so that the alignment is convenient, and the assembly efficiency is improved.

The number of the positioning protrusions in this embodiment is 3, the number of the supporting seats 33 is 4, and the positioning protrusions and the supporting seats 33 are arranged at intervals, so that the encoder PCB 22 is supported and stressed evenly. Specifically, the location is protruding to be cylindrical structure including integrated into one piece's location section 34 and linkage segment 35, and location section 34 and linkage segment 35 are the revolution solid structure of coaxial setting, are used for connecting and supporting respectively.

In order to adapt to the size of the encoder signal panel 21, the supporting seat 33 and the bottom of the positioning protrusion are provided with the cushion blocks 37, and the adjacent cushion blocks 37 are connected into a whole. Utilize cushion 37 side and encoder PCB board 22 parcel encoder signal dish 21, reduce signal interference. In order to save resources, improve the structural strength of connecting seat 31 simultaneously, this implementation sets up the bottom of cushion 37 into hollow out construction 39, and hollow out construction 39 embeds and is equipped with reinforcing piece 36.

Referring to fig. 2, the rear end cover 11 is provided with a threading hole 12 on the side, and the fixed encoder PCB 22 is provided with an arc groove 4 on one side of the threading hole 12 and on one side of the connecting seat 31 of the threading hole 12 for accommodating the wire harness, which is convenient for fixing.

The implementation principle of the servo motor in the embodiment of the application is convenient for installation of an assembler, and the encoder PCB 22 is connected stably.

Meanwhile, the arrangement of the spacer 37 in this embodiment leaves a wiring space for the outer side and the lower portion of the encoder PCB 22. And a winding post is provided at the place for avoiding the winding of the wire harness.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a servo motor, includes casing (1), is located rotor, stator, pivot (13), encoder signal disc (21) and encoder PCB board (22) of casing (1), casing (1) includes rear end cap (11), and encoder signal disc (21) are located rear end cap (11), pivot (13) pass rear end cap (11) and are connected its characterized in that with encoder signal disc (21): the rear end cover (11) is provided with a connecting seat (31) and a fixing hole (32) formed in the connecting seat (31), the connecting seat (31) is of an annular structure and is coaxial with the rotating shaft (13), and the fixed encoder PCB (22) is fixedly connected with the connecting seat (31);

the encoder PCB (22) is provided with a plurality of positioning holes (23) and connecting holes (24), the connecting seat (31) is provided with a plurality of positioning bulges and supporting seats (33), the positioning bulges correspond to the positioning holes (23) one by one and are embedded in the positioning holes (23), the supporting seat (33) is provided with mounting holes (38), and the connecting holes (24) correspond to the mounting holes (38) one by one and are connected through fasteners;

the connecting seat (31) is fixedly connected with the surface of the rear end face.

2. A servo motor according to claim 1, wherein: the location is protruding to be equipped with 3, and supporting seat (33) are equipped with 4, and each location is protruding to be set up with each supporting seat (33) interval.

3. A servo motor according to claim 2, wherein: the location is protruding including integrated into one piece's location section (34) and linkage segment (35), location section (34) and linkage segment (35) are the rotator structure of coaxial setting.

4. A servo motor according to claim 1 or 2, wherein: the supporting seat (33) and the bottom of the positioning protrusion are provided with cushion blocks (37), and all adjacent cushion blocks (37) are connected into a whole.

5. A servo motor according to claim 4, wherein: the bottom of the cushion block (37) is of a hollow structure (39), and a reinforcing sheet (36) is embedded in the hollow structure (39).

6. A servo motor according to claim 1 or 2, wherein: rear end cap (11) side is equipped with through wires hole (12), and fixed encoder PCB board (22) all is equipped with arc recess (4) towards one side of through wires hole (12) and connecting seat (31) one side towards through wires hole (12).