Grinding machine spindle motor brake mechanism

Abstract

The utility model discloses a brake mechanism for a spindle motor of a grinding machine, which relates to the technical field of disassembly and assembly of grinding wheels and has the advantage of reducing rotation of a power output shaft of a motor for mounting a grinding wheel when the grinding wheel is disassembled. An output shaft on the main shaft motor body extends out of two opposite sides of the main shaft motor body; and the brake is arranged on the main shaft motor body and is used for limiting the rotation of an output shaft on the main shaft motor body.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel disassembly and assembly technology, specifically a braking mechanism for a grinding machine spindle motor. Background Technology

[0002] A grinding machine is a machine tool that uses grinding wheels to grind the surface of a workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding.

[0003] However, the existing method of installing grinding wheels on grinding machines requires the grinding wheel to be fitted onto the power output end of the motor and fixed to the outer end with a nut. When the grinding wheel needs to be replaced, workers usually need to use special disassembly tools to remove the nut and then remove the grinding wheel. During this process, the torque is large, and the power output shaft of the motor must not be rotated to facilitate the disassembly of the grinding wheel. Therefore, the applicant has developed a new technical solution in actual production to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a braking mechanism for a grinding machine spindle motor, which has the advantage of restricting the rotation of the motor power output shaft that mounts the grinding wheel when the grinding wheel is disassembled.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a braking mechanism for a grinding machine spindle motor, including a spindle motor body, wherein the output shaft on the spindle motor body extends out of opposite sides of the spindle motor body;

[0007] It also includes a brake installed on the main spindle motor body to restrict the rotation of the output shaft on the main spindle motor body.

[0008] By adopting the above technical solution, when it is necessary to replace the grinding wheel on the main spindle motor body, it is only necessary to use the brake to restrict the rotation of the output shaft on the main spindle motor body, thereby restricting the rotation of the motor power output shaft on which the grinding wheel is mounted, which facilitates the replacement of the grinding wheel.

[0009] Preferably, one end of the output shaft on the main spindle motor body extends out of the main spindle motor body and is connected to a transmission shaft by a key. A grinding wheel is installed at the end of the transmission shaft away from the main spindle motor body. A brake disc is coaxially fixedly installed at the other end of the output shaft on the main spindle motor body after extending out of the main spindle motor body.

[0010] Preferably, the brake includes an L-shaped connecting plate disposed on the outer wall of the main spindle motor body, one side of the connecting plate is connected to the outer wall of the main spindle motor body, and a DBF pneumatic brake is installed on the other side, with the brake disc surface located in the middle groove of the DBF pneumatic brake.

[0011] Preferably, the connecting plate has two elongated waist-shaped grooves at the position where it connects with the outer wall of the main spindle motor body. Each waist-shaped groove is provided with a threaded rod. One end of the threaded rod passes through the waist-shaped groove and is threadedly connected to the outer wall of the main spindle motor body. The end of the threaded rod away from the outer wall of the main spindle motor body is provided with a limiting block that abuts against the surface of the connecting plate.

[0012] Preferably, the connecting plate has two parallel elongated limiting grooves at the position where it connects to the DBF pneumatic brake. Each limiting groove has a limiting rod passing through it. One end of each limiting rod passes through the limiting groove and is threaded to the outer wall of the DBF pneumatic brake. The end of the limiting rod away from the DBF pneumatic brake has a locking block that abuts against the surface of the connecting plate.

[0013] The beneficial effect of this utility model is that when it is necessary to replace the grinding wheel on the main spindle motor body, it is only necessary to use the brake to restrict the rotation of the output shaft on the main spindle motor body, thereby restricting the rotation of the motor power output shaft on which the grinding wheel is installed, which facilitates the replacement of the grinding wheel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0016] Figure 2 This is a schematic diagram illustrating the structure of the brake disc in this embodiment;

[0017] Figure 3 This is a schematic diagram illustrating the structure of the spindle motor body in this embodiment;

[0018] Figure 4 This is a schematic diagram illustrating the structure of the drive shaft in this embodiment.

[0019] Explanation of reference numerals in the attached figures:

[0020] In the diagram: 1. Main spindle motor body; 11. Output shaft; 12. Transmission shaft; 121. Grinding wheel; 122. Brake disc; 13. Connecting plate; 14. DBF pneumatic brake; 141. Intermediate groove; 142. Waist-shaped groove; 143. Limiting groove. 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] A braking mechanism for a grinding machine spindle motor, such as Figure 1 and Figure 3 The device includes a spindle motor body 1, with an output shaft 11 extending from opposite sides of the spindle motor body 1. The spindle motor body 1 is mainly used as a motor to drive the grinding wheel 121 to rotate on the grinding machine. The output shaft 11 on the spindle motor body 1 is the output end of the spindle motor body 1. Generally, the output end of the spindle motor body 1 extends from one side of the spindle motor body 1. However, the braking mechanism of this application uses two ends of the output shaft 11 of the spindle motor body 1 that extend from opposite side walls of the spindle motor body 1.

[0023] like Figure 1 and Figure 2 It also includes a brake installed on the spindle motor body 1 to restrict the rotation of the output shaft 11 on the spindle motor body 1.

[0024] like Figure 1 and Figure 2 When it is necessary to replace the grinding wheel 121 on the main spindle motor body 1, it is only necessary to use the brake to restrict the rotation of the output shaft 11 on the main spindle motor body 1, thereby restricting the rotation of the motor power output shaft 11 on which the grinding wheel 121 is mounted, which facilitates the replacement of the grinding wheel 121.

[0025] like Figure 1 and Figure 4 One end of the output shaft 11 on the main spindle motor body 1 extends out of the main spindle motor body 1 and is connected to the drive shaft 12 via a key. A grinding wheel 121 is installed at the end of the drive shaft 12 away from the main spindle motor body 1. At this time, the output shaft 11 on the main spindle motor body 1 drives the grinding wheel 121 to rotate through the drive shaft 12, which meets the installation requirements. The other end of the output shaft 11 on the main spindle motor body 1 extends out of the main spindle motor body 1 and is coaxially fixedly installed with a brake disc 122. That is, the brake disc 122 and the grinding wheel 121 are respectively installed at both ends of the output shaft 11 on the main spindle motor body 1.

[0026] like Figure 1 and Figure 2The brake includes an L-shaped connecting plate 13 mounted on the outer wall of the main spindle motor body 1. One side of the connecting plate 13 is connected to the outer wall of the main spindle motor body 1, and a DBF pneumatic brake 14 is mounted on the other side. The brake disc 122 is located in the central groove 141 of the DBF pneumatic brake 14. The DBF pneumatic brake 14 used in this application is the DBF-L10 model from Hongxin Pneumatic, which can be purchased from Taobao. When air is supplied to the DBF pneumatic brake 14, it presses the brake disc 122 within the central groove 141; when air is cut off, it releases the pressure on the brake disc 122, thus achieving the purpose of braking when air is supplied and resetting when air is cut off.

[0027] like Figure 1 and Figure 2 The connecting plate 13 has two elongated waist-shaped grooves 142 at the position where it connects with the outer wall of the spindle motor body 1. Each waist-shaped groove 142 is provided with a threaded rod. One end of the threaded rod passes through the waist-shaped groove 142 and is threadedly connected to the outer wall of the spindle motor body 1. The end of the threaded rod away from the outer wall of the spindle motor body 1 is provided with a limiting block (not shown in the figure) that abuts against the surface of the connecting plate 13. When it is necessary to adjust the position of the DBF pneumatic brake 14 so that the brake disc 122 is located in the middle groove 141 of the DBF pneumatic brake 14, the connecting plate 13 is moved. One end of the threaded rod is threadedly connected to the outer wall of the main spindle motor body 1, which only makes the limiting block rotate away from the connecting plate 13. At this time, the threaded rod moves in the waist-shaped groove 142. The length direction of the waist-shaped groove 142 is parallel to the length direction of the main spindle motor body 1. When it moves to the appropriate position, the limiting block is rotated so that the limiting block abuts against the side of the connecting plate 13 away from the main spindle motor body 1, thereby restricting the connecting plate 13 to the outer wall of the main spindle motor body 1.

[0028] like Figure 1 and Figure 2 The connecting plate 13 has two parallel elongated limiting grooves 143 at the connection position with the DBF pneumatic brake 14. Each limiting groove 143 has a limiting rod passing through it, and one end of each limiting rod passes through the limiting groove 143 and is threaded to the outer wall of the DBF pneumatic brake 14. The end of the limiting rod away from the DBF pneumatic brake 14 has a locking block (not shown in the figure) that abuts against the surface of the connecting plate 13. At this time, the length direction of the limiting groove 143 is perpendicular to the length direction of the output shaft 11 of the main spindle motor body 1. When it is necessary to move the brake disc 122 into the middle groove 141 of the DBF pneumatic brake 14, the DBF pneumatic brake 14 is moved so that the limiting rod slides in the limiting groove 143. After the DBF pneumatic brake 14 moves to the required position, the locking block is rotated so that the locking block abuts against the side of the connecting plate 13 away from the DBF pneumatic brake 14, thereby fixing the DBF pneumatic brake 14 on the connecting plate 13.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A braking mechanism for a grinding machine spindle motor, characterized in that, Includes a spindle motor body (1), and the output shaft (11) on the spindle motor body (1) extends out of the opposite sides of the spindle motor body (1); It also includes a brake installed on the spindle motor body (1) to restrict the rotation of the output shaft (11) on the spindle motor body (1); One end of the output shaft (11) on the main spindle motor body (1) extends out of the main spindle motor body (1) and is connected to the transmission shaft (12) by a key. A grinding wheel (121) is installed at the end of the transmission shaft (12) away from the main spindle motor body (1). A brake disc (122) is coaxially fixedly installed at the other end of the output shaft (11) on the main spindle motor body (1) after extending out of the main spindle motor body (1). The brake includes an L-shaped connecting plate (13) disposed on the outer wall of the main spindle motor body (1). One side of the connecting plate (13) is connected to the outer wall of the main spindle motor body (1), and a DBF pneumatic brake (14) is installed on the other side. The disc surface of the brake disc (122) is located in the middle groove (141) of the DBF pneumatic brake (14).

2. The grinding machine spindle motor braking mechanism as described in claim 1, characterized in that, The connecting plate (13) has two elongated waist-shaped grooves (142) at the position where it connects with the outer wall of the main spindle motor body (1). Each waist-shaped groove (142) is provided with a threaded rod. One end of the threaded rod passes through the waist-shaped groove (142) and is threadedly connected to the outer wall of the main spindle motor body (1). The end of the threaded rod away from the outer wall of the main spindle motor body (1) is provided with a limiting block that abuts against the surface of the connecting plate (13).

3. The grinding machine spindle motor braking mechanism as described in claim 2, characterized in that, The connecting plate (13) has two parallel elongated limiting grooves (143) at the position where it is connected to the DBF pneumatic brake (14). Each limiting groove (143) has a limiting rod passing through it. One end of each limiting rod passes through the limiting groove (143) and is threaded to the outer wall of the DBF pneumatic brake (14). The end of the limiting rod away from the DBF pneumatic brake (14) has a locking block that abuts against the surface of the connecting plate (13).

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