Motor shaft groove milling clamp

Abstract

The utility model provides a motor shaft groove milling clamp, and belongs to the technical field of motor production equipment. Comprising a mounting plate, and a plurality of countersunk bolt holes are formed in the mounting plate; a fixed support and a sliding support are arranged on the upper surface of the mounting plate, the fixed support is detachably mounted on the mounting plate, the sliding support is slidably connected to the mounting plate, and the fixed support and the sliding support are parallel to each other; a plurality of V-shaped clamping grooves in one-to-one correspondence are formed in the tops of the fixed bracket and the sliding bracket; a hydraulic oil cylinder is detachably installed on the upper surface of the installation plate and located between the fixed support and the sliding support, the hydraulic oil cylinder is vertically arranged, and a pressing rod is fixed to a push rod of the hydraulic oil cylinder. The device has the advantages of saving processing time, improving processing efficiency and the like.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor production equipment and relates to a motor shaft milling fixture. Background Technology

[0002] Electric motors are among the most widely used devices in production and daily life. The performance of the motor shaft has a great influence on the performance of the motor and is a key component of the motor. The structure of the motor shaft mainly consists of several ribs welded onto the main shaft. The silicon wafer and coil are surrounded by the ribs and work by using the current generated by the magnetic field. Generally, the motor shaft is connected to other equipment such as a reducer at the output end through a flat key. In the production and processing of motor shafts, we usually perform milling on the motor shaft.

[0003] During milling, due to the large cutting force and vibration, a fixture is usually used to clamp the motor shaft before milling to fix the motor shaft to be machined on the fixture in order to ensure machining accuracy.

[0004] However, in the existing technology, most tooling fixtures used for milling grooves on motor shafts can only clamp and fix a single motor shaft at a time. After processing, they are disassembled and replaced with the next shaft, which is inefficient and wastes a lot of time. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a motor shaft milling fixture that can clamp and fix multiple motor shafts at once, thereby saving time and improving the efficiency of motor shaft milling.

[0006] The objective of this utility model can be achieved through the following technical solution: a motor shaft milling fixture, characterized in that the fixture includes a mounting plate, the mounting plate having a plurality of countersunk bolt holes; the upper surface of the mounting plate is provided with a fixed bracket and a sliding bracket, the fixed bracket being detachably mounted on the mounting plate, the sliding bracket being slidably connected to the mounting plate, and the fixed bracket and the sliding bracket being parallel to each other; the top of the fixed bracket and the sliding bracket are each provided with a plurality of corresponding "V" shaped clamping grooves; a hydraulic cylinder is detachably mounted on the upper surface of the mounting plate between the fixed bracket and the sliding bracket, the hydraulic cylinder being vertically arranged, and a pressure rod is fixed on the push rod of the hydraulic cylinder.

[0007] Preferably, the mounting plate is provided with a plurality of dovetail grooves and a plurality of slide rails, and the sliding bracket is slidably connected to the slide rails; each dovetail groove is provided with a locking bolt that can fix the sliding bracket to the mounting plate; the fixed bracket includes a base plate and a support plate welded together vertically, the bottom of the base plate is provided with a plurality of sliding keys corresponding to the dovetail grooves, and the base plate is also provided with a fixing bolt that can fix the fixed bracket to the mounting plate; the fixed bracket is provided with a slag guide plate, and the slag guide plate is welded between the side of the support plate away from the sliding bracket and the upper surface of the base plate.

[0008] The advantages of this utility model are:

[0009] 1. This fixture can clamp and fix multiple motor shafts at once, thereby saving processing time and improving processing efficiency.

[0010] 2. This fixture can adjust the distance between the fixed bracket and the sliding bracket according to the outer diameter of the motor shaft, and then select the clamping surface on the motor shaft to ensure that it is horizontal, which facilitates accurate control of the depth of the flat key mounting groove. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the fixture.

[0012] Figure 2 This is a schematic diagram illustrating the application scenarios of this fixture.

[0013] In the diagram, 1. Mounting plate; 11. Countersunk bolt hole; 12. Dovetail groove; 2. Sliding bracket; 21. Locking bolt; 3. "V" shaped clamping groove; 4. Hydraulic cylinder; 41. Pressure rod; 5. Slide rail; 61. Base plate; 62. Support plate; 63. Sliding key; 64. Fixing bolt; 65. Slag guide plate; 7. Motor shaft; 71. Flat key mounting groove. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 As shown, a motor shaft milling fixture includes a mounting plate 1 with several countersunk bolt holes 11. The upper surface of the mounting plate 1 is provided with a fixed bracket and a sliding bracket 2. The fixed bracket is detachably mounted on the mounting plate 1, and the sliding bracket 2 is slidably connected to the mounting plate 1, with the fixed bracket and the sliding bracket 2 being parallel to each other. The top of both the fixed bracket and the sliding bracket 2 is provided with several corresponding "V" shaped clamping grooves 3. A hydraulic cylinder 4 is detachably mounted on the upper surface of the mounting plate 1 between the fixed bracket and the sliding bracket 2. The hydraulic cylinder 4 is vertically arranged, and a pressure rod 41 is fixed on the push rod of the hydraulic cylinder 4.

[0016] like Figure 2 As shown, when this fixture is used for milling grooves on motor shafts 7, the mounting plate 1 can be fixed to the working platform of the milling machine through the countersunk bolt holes 11. The feed mechanism on the milling machine then drives the fixture to move laterally or longitudinally. Two aligned "V"-shaped clamping grooves 3 on the fixed bracket and sliding bracket 2 form a group. Each group of "V"-shaped clamping grooves 3 can hold one motor shaft 7 to be milled. After all the "V"-shaped clamping grooves 3 have motor shafts 7, the hydraulic cylinder 4 is activated, causing its push rod to retract and drive the pressure rod 41 downwards, pressing it onto each motor shaft 7. This clamps and fixes each motor shaft 7 between the "V"-shaped clamping grooves 3 and the pressure rod 41, facilitating the milling machine to mill the keyway mounting groove 71 on each motor shaft 7. This fixture can clamp and fix multiple motor shafts 7 at once, saving processing time and improving processing efficiency.

[0017] like Figure 2 As shown, since most of the motor shafts 7 are stepped shafts, in order to accurately control the depth of the key mounting groove 71, it is necessary to ensure that it is in a horizontal state. Therefore, when clamping it, it is necessary to find two outer circumferential surfaces with the same outer diameter on the motor shaft 7 and place them in two corresponding "V" shaped clamping grooves 3. In this way, the distance between the fixed bracket and the sliding bracket 2 needs to be adjusted according to the outer diameter of the motor shaft 7.

[0018] like Figure 1 As shown, the mounting plate 1 is provided with several dovetail grooves 12 and several slide rails 5, and the sliding bracket 2 is slidably connected to the slide rails 5; each dovetail groove 12 is provided with a locking bolt 21 that can fix the sliding bracket 2 to the mounting plate 1; the fixed bracket includes a base plate 61 and a support plate 62 that are vertically welded together, the bottom of the base plate 61 is provided with several sliding keys 63 corresponding to the dovetail grooves 12, and the base plate 61 is also provided with fixing bolts 64 that can fix the fixed bracket to the mounting plate 1; the fixed bracket is provided with a slag guide plate 65, and the slag guide plate 65 is welded between the side of the support plate 62 away from the sliding bracket 2 and the upper surface of the base plate 61.

[0019] like Figure 2 As shown, the fixed bracket is fixedly installed using the dovetail groove 12, sliding key 63, and fixing bolt 64. This allows for easy installation and removal by moving only one fixing bolt 64. Since milling operations are performed at one end of the fixed bracket, a slag guide plate 65 is welded to it. This allows milling debris to slide off the fixture, effectively preventing it from adhering to the dovetail groove 12 or the guide rail, thus avoiding damage and extending the maintenance cycle and service life.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A milling fixture for motor shafts, characterized in that, This fixture includes a mounting plate (1) with several countersunk bolt holes (11); the upper surface of the mounting plate (1) is provided with a fixed bracket and a sliding bracket (2), the fixed bracket is detachably mounted on the mounting plate (1), the sliding bracket (2) is slidably connected to the mounting plate (1), and the fixed bracket and the sliding bracket (2) are parallel to each other; the top of the fixed bracket and the sliding bracket (2) are provided with several corresponding "V" shaped clamping grooves (3); a hydraulic cylinder (4) is detachably mounted on the upper surface of the mounting plate (1) between the fixed bracket and the sliding bracket (2), the hydraulic cylinder (4) is vertically arranged, and a pressure rod (41) is fixed on the push rod of the hydraulic cylinder (4).

2. The motor shaft milling fixture according to claim 1, characterized in that, The mounting plate (1) is provided with several dovetail grooves (12) and several slide rails (5), and the sliding bracket (2) is slidably connected to the slide rails (5); each dovetail groove (12) is provided with locking bolts that can fix the sliding bracket (2) on the mounting plate (1); the fixed bracket includes a base plate (61) and a support plate (62) welded together vertically, the bottom of the base plate (61) is provided with several sliding keys (63) corresponding to the dovetail grooves (12), and the base plate (61) is also provided with fixing bolts (64) that can fix the fixed bracket on the mounting plate (1); the fixed bracket is provided with a slag guide plate (65), and the slag guide plate (65) is welded between the side of the support plate (62) away from the sliding bracket (2) and the upper surface of the base plate (61).

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