Permanent magnet brake structure for servo motor

Abstract

The permanent magnet brake structure for the servo motor relates to the technical field of servo motors and comprises a motor, a positioning installation plate and a permanent magnet brake main body, a rear end cover is fixed at the rear end of the motor, clamping grooves are formed in the upper side and the lower side of the rear end cover, the positioning installation plate is installed on the outer side of the rear end cover, and the permanent magnet brake main body is arranged on the positioning installation plate. And a permanent magnet brake body is installed outside the positioning installation plate, and clamping anti-disengaging assemblies are arranged on the upper side and the lower side of the positioning installation plate correspondingly. According to the permanent magnet brake structure for the servo motor, the clamping anti-disengaging assembly enables the other end of the clamping block of an L-shaped structure to be attached to the side face of the rear end cover, so that the positioning mounting plate and the rear end cover which are connected can be clamped, and the situation that the positioning mounting plate and the rear end cover are disengaged is prevented; the limiting fastening assembly can limit the positioning mounting plate and the rear end cover which are connected, and the situation that the concentricity between the permanent magnet brake body and the motor is affected due to the left-right deviation of the positioning mounting plate and the rear end cover is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of servo motors, in particular to a permanent magnet brake structure for servo motors. Background Art

[0002] In the production of servo motors, permanent magnet brakes can achieve the braking function of the motor by resisting the motor shaft, so it is necessary to set a permanent magnet brake structure to be installed on the rear end cover of the motor. Permanent magnet brakes, also known as permanent magnet brakes, are a new type of adjustable constant torque output device; the output shaft and the body are connected by a magnetic pair to provide a stable braking torque on the output shaft.

[0003] The existing permanent magnet brake structure for servo motors is subject to vibration during installation and use, so it is easy for it to loosen or deviate from the motor after long-term use, which in turn affects the stability of the permanent magnet brake function and easily produces noise that affects the quality of the motor.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a permanent magnet brake structure for a servo motor is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a permanent magnet brake structure for a servo motor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a permanent magnet brake structure for a servo motor, comprising a motor, a positioning mounting plate and a permanent magnet brake body, a rear end cover being fixed to the rear end of the motor, and a card slot being provided on the upper and lower sides of the rear end cover, a positioning mounting plate being installed on the outer side of the rear end cover, and a permanent magnet brake body being installed on the outer side of the positioning mounting plate, a clamping anti-slipping component being provided on the upper and lower sides of the positioning mounting plate, and the clamping anti-slipping component comprising a mounting groove, a movable rotating shaft and a clamping block, the mounting groove being a rectangular groove, and a clamping block being rotatably installed inside the mounting groove via a movable rotating shaft, a limiting fastening component being installed on the left and right sides of the positioning mounting plate, and the limiting fastening component comprising a connecting plate and a side bolt, the connecting plate is fixedly connected to the positioning mounting plate, and a side bolt is passed through the other side of the connecting plate.

[0007] Furthermore, a front end cover is installed at the front end of the motor, and a motor shaft passes through the middle of the front end cover.

[0008] Furthermore, threaded holes are provided at the four corners of the rear end cover, and positioning holes are distributed on both sides of the threaded holes.

[0009] Furthermore, a rubber strip is evenly glued to the outer surface of the permanent magnet brake body, and the rubber strip is in an arc-shaped convex structure.

[0010] Further, a connecting bolt penetrates through one side of the positioning and mounting plate close to the threaded hole, and a positioning rod is fixedly provided corresponding to one side of the positioning and mounting plate close to the positioning hole.

[0011] Further, the clamping block is in an "L" shape, and the clamping block is snap-connected with the clamping groove.

[0012] Further, the limiting and fastening assembly further includes a limiting plate, and the limiting plate is fixed on the left and right sides of the rear end cover, and the limiting plate is slidably connected with the connecting plate.

[0013] The utility model provides a permanent magnet brake structure for a servo motor, which has the following beneficial effects:

[0014] The utility model is provided with a clamping and anti-loosening assembly and a limiting and fastening assembly. The position of the clamping block can be easily rotated through the movable rotating shaft, so that the clamping block can be clamped into the clamping groove. At the same time, the other end of the clamping block in an "L" shape can be attached to the side surface of the rear end cover, so as to clamp and connect the positioning and mounting plate and the rear end cover after connection, preventing loosening between the two. The limiting plates on both sides can limit the connecting plate, and further limit the positioning and mounting plate and the rear end cover after connection, preventing the two from shifting left and right and affecting the concentricity between the permanent magnet brake main body and the motor.

[0015] The utility model is provided with a positioning and mounting plate and a permanent magnet brake main body. The positioning rod of the positioning and mounting plate can be embedded into the clamping groove of the rear end cover to play a role in preliminary positioning. At the same time, the connecting bolt is screwed into the threaded hole to facilitate the connection and installation between the positioning and mounting plate and the rear end cover. The side bolt penetrates through the connecting plate to facilitate the connection between the positioning and mounting plate and the motor, further enhancing the fastening of the installation of the positioning and mounting plate and the permanent magnet brake main body. The rubber strip with an arc-shaped convex structure on the outer side of the permanent magnet brake main body can play a certain protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the split structure of a permanent magnet brake structure for a servo motor according to the utility model;

[0017] Figure 2 is a schematic diagram of the overall structure of a permanent magnet brake structure for a servo motor according to the utility model;

[0018] Figure 3 is a schematic diagram of the inner side structure of the positioning and mounting plate of a permanent magnet brake structure for a servo motor according to the utility model.

[0019] In the figure: 1, motor; 2, front end cover; 3, motor shaft; 4, rear end cover; 5, positioning hole; 6, threaded hole; 7, card slot; 8, positioning mounting plate; 9, permanent magnet brake body; 10, rubber strip; 11, positioning rod; 12, connecting bolt; 13, clamping and anti-loosening component; 1301, mounting groove; 1302, movable rotating shaft; 1303, clamping block; 14, limit fastening component; 1401, connecting plate; 1402, side bolt; 1403, limiting plate. Specific embodiments

[0020] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] As Figures 1-3 shown, a permanent magnet brake structure for a servo motor includes a motor 1, a positioning mounting plate 8, and a permanent magnet brake body 9. A rear end cover 4 is fixed to the rear end of the motor 1, and card slots 7 are provided on both the upper and lower sides of the rear end cover 4. A front end cover 2 is installed at the front end of the motor 1, and a motor shaft 3 passes through the middle of the front end cover 2. A positioning mounting plate 8 is installed on the outside of the rear end cover 4, and a permanent magnet brake body 9 is installed on the outside of the positioning mounting plate 8. Rubber strips 10 are evenly bonded to the outer surface of the permanent magnet brake body 9, and the rubber strips 10 are in an arc-shaped convex structure. Threaded holes 6 are provided at the four corners of the rear end cover 4, and positioning holes 5 are distributed on both sides of the threaded holes 6. A connecting bolt 12 passes through one side of the positioning mounting plate 8 close to the threaded hole 6, and a positioning rod 11 is correspondingly fixed on one side of the positioning mounting plate 8 close to the positioning hole 5. The positioning mounting plate 8 corresponds to the rear end cover 4 of the motor 1. The positioning rod 11 of the positioning mounting plate 8 can be inserted into the card slot 7 of the rear end cover 4 to play a role in preliminary positioning. At the same time, the connecting bolt 12 is screwed into the threaded hole 6 to facilitate the connection and installation between the positioning mounting plate 8 and the rear end cover 4, thereby realizing the installation of the permanent magnet brake body 9. The rubber strips 10 with an arc-shaped convex structure on the outside of the permanent magnet brake body 9 can play a certain protective role for it.

[0022] As Figure 1As shown in the figure, clamping and anti - detachment components 13 are provided on both the upper and lower sides of the positioning mounting plate 8. The clamping and anti - detachment component 13 includes a mounting groove 1301, a movable rotating shaft 1302, and a clamping block 1303. The mounting groove 1301 is a rectangular groove, and a clamping block 1303 is rotatably mounted inside the mounting groove 1301 through the movable rotating shaft 1302. The clamping block 1303 is in an "L" - shaped structure, and the clamping block 1303 is in snap - fit connection with the clamping groove 7. The position of the clamping block 1303 in the mounting grooves 1301 on both the upper and lower sides of the positioning mounting plate 8 can be rotated and adjusted through the movable rotating shaft 1302, so that the clamping block 1303 can be inserted into the clamping grooves 7 on both the upper and lower sides of the rear end cover 4. At the same time, the other end of the clamping block 1303 in the "L" - shaped structure can be attached to the side surface of the rear end cover 4, thereby being able to tightly connect the connected positioning mounting plate 8 and the rear end cover 4 and prevent loosening between the two.

[0023] As Figure 2 shown, limiting and fastening components 14 are installed on both the left and right sides of the positioning mounting plate 8. The limiting and fastening component 14 includes a connecting plate 1401 and a side bolt 1402. The connecting plate 1401 is fixedly connected to the positioning mounting plate 8, and a side bolt 1402 penetrates through the other side of the connecting plate 1401. The limiting and fastening component 14 further includes a limiting plate 1403, and the limiting plate 1403 is fixed to both the left and right sides of the rear end cover 4, and the limiting plate 1403 is in sliding connection with the connecting plate 1401. During the installation process between the positioning mounting plate 8 and the rear end cover 4, the connecting plates 1401 on both sides of the positioning mounting plate 8 can slide into the limiting plates 1403 on both sides of the rear end cover 4, thereby being able to limit the connected positioning mounting plate 8 and the rear end cover 4 and prevent the two from shifting left and right, which may affect the concentricity between the permanent magnet brake body 9 and the motor 1. The connection between the positioning mounting plate 8 and the motor 1 can be realized by passing the side bolt 1402 through the connecting plate 1401, further enhancing the fastening of the installation of the positioning mounting plate 8 and the permanent magnet brake body 9.

[0024] In summary, as Figures 1-3 shown, for the permanent magnet brake structure for the servo - motor, during use, first, the positioning mounting plate 8 can be made to correspond to the rear end cover 4 of the motor 1. Then, the positioning rod 11 of the positioning mounting plate 8 is inserted into the clamping groove 7 of the rear end cover 4. At this time, the connecting plates 1401 on both sides of the positioning mounting plate 8 can slide into the limiting plates 1403 on both sides of the rear end cover 4, thereby limiting the connected positioning mounting plate 8 and the rear end cover 4. Then, the connection and installation between the positioning mounting plate 8 and the rear end cover 4 are realized by screwing the connecting bolt 12 into the internal thread hole 6. Then, the side bolt 1402 penetrates through the connecting plate 1401 to realize the connection between the positioning mounting plate 8 and the motor 1, further enhancing the fastening of the installation of the positioning mounting plate 8 and the permanent magnet brake body 9.

[0025] Then, the position of the clamping blocks 1303 in the mounting grooves 1301 on the upper and lower sides of the positioning mounting plate 8 can be adjusted by rotating the movable rotating shaft 1302, so that the clamping blocks 1303 can be inserted into the clamping grooves 7 on the upper and lower sides of the rear end cover 4. At this time, the other end of the clamping block 1303 with an "L" - shaped structure can be attached to the side surface of the rear end cover 4, thereby clamping and connecting the positioning mounting plate 8 and the rear end cover 4 to prevent loosening between the two. During use, the permanent magnet brake body 9 can brake the motor shaft 3 of the motor 1, and the rubber strip 10 with an arc - shaped convex structure on the outer side of the permanent magnet brake body 9 can play a certain protective role. In this way, the use process of the permanent magnet brake structure for the servo motor is completed.

[0026] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A permanent magnet brake structure for a servo motor, comprising a motor (1), a positioning mounting plate (8) and a permanent magnet brake body (9), characterized in that: A rear end cover (4) is fixed to the rear end of the motor (1), and a clamping groove (7) is provided on both upper and lower sides of the rear end cover (4), a positioning mounting plate (8) is installed on the outer side of the rear end cover (4), and a permanent magnetic brake body (9) is installed on the outside of the positioning mounting plate (8), and a clamping anti-slip assembly (13) is provided on both upper and lower sides of the positioning mounting plate (8), and the clamping anti-slip assembly (13) includes a mounting groove (1301), a movable rotating shaft (1302) and a clamping block (1303), and the mounting The mounting groove (1301) is a rectangular groove, and a clamping block (1303) is rotatably mounted inside the mounting groove (1301) via a movable rotating shaft (1302). The left and right sides of the positioning mounting plate (8) are both mounted with a limiting fastening assembly (14), and the limiting fastening assembly (14) includes a connecting plate (1401) and a side bolt (1402). The connecting plate (1401) is fixedly connected to the positioning mounting plate (8), and the other side of the connecting plate (1401) is penetrated by a side bolt (1402).

2. A permanent magnet brake structure for a servo motor according to claim 1, characterized in that: A front end cover (2) is installed at the front end of the motor (1), and a motor shaft (3) passes through the middle of the front end cover (2).

3. A permanent magnet brake structure for a servo motor according to claim 1, characterized in that: The four corners of the rear end cover (4) are provided with threaded holes (6), and positioning holes (5) are distributed on both sides of the threaded holes (6).

4. A permanent magnet brake structure for a servo motor according to claim 1, characterized in that: The outer surface of the permanent magnetic brake body (9) is evenly glued with a rubber strip (10), and the rubber strip (10) is in an arc-shaped convex structure.

5. The permanent magnet brake structure for a servo motor according to claim 3, characterized in that: A connecting bolt (12) penetrates through one side of the positioning installation plate (8) close to the threaded hole (6), and a positioning rod (11) is correspondingly fixed to one side of the positioning installation plate (8) close to the positioning hole (5).

6. A permanent magnet brake structure for a servo motor according to claim 1, characterized in that: The clamping block (1303) is of an "L"-shaped structure, and the clamping block (1303) and the clamping slot (7) are in a clamping connection.

7. The permanent magnet brake structure for a servo motor according to claim 1, characterized in that: The limiting fastening assembly (14) further comprises a limiting plate (1403), and the limiting plate (1403) is fixed to the left and right sides of the rear end cover (4), and the limiting plate (1403) is slidably connected to the connecting plate (1401).

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