A multi-mode ratio shaft keyway processing device

Abstract

The invention discloses a multi-mode ratio rotating shaft keyway processing device, comprising a rotating motor, wherein the output shaft of the rotating motor is a first worm shaft, a first worm wheel shaft matched with the first worm shaft is provided with a gear, the gear of the first worm wheel shaft is connected with a large gear gear, the large gear is arranged on a dividing shaft, one end of the dividing shaft is connected with a dividing wheel, and the other end is connected with a small gear, the driven gear is also connected with a driven worm, the driven worm is assembled and connected with a driven worm wheel, and a main shaft is provided at the center of the driven worm wheel. The advantages of the invention are: ensuring the effectiveness of the processing part, the 1:40 worm wheel transmission pair of the dividing wheel can improve the accuracy, and the previous processing and marking process is omitted, thereby improving the production efficiency; providing a 1:1400 large transmission ratio solution, the two transmission modes do not affect each other, and the use of standard milling cutter fixtures is not affected when used on vertical milling or horizontal milling, and tool changing and operation are very convenient, and there is no need to find the positive slope according to the line, which is suitable for mass production.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, in particular to a processing device for reducing motor harmonics. Background Art

[0002] The spiral keyway on the rotor shaft is one of the effective ways to reduce motor harmonics, and its effect is very obvious. However, its ordinary processing is time-consuming and labor-intensive, and it is easy to produce large errors. If it is not processed according to the spiral keyway, it will not have a significant effect. The rotation ratio of the existing processing device is not enough to achieve the required helix angle. At the same time, if a new processing jig is purchased, the cost will be too high. In order to achieve the required helix angle, a larger transmission ratio is required. Simply put, the stroke of the milling cutter is fixed. If the spindle rotates too fast, the shape of the ideal spiral keyway cannot be achieved. Therefore, a higher transmission ratio is required. After calculation, a transmission ratio of 1:1400 is required to complete the required spiral keyway. The prior art uses a mold solution to achieve this, but this solution has poor processing rigidity due to the large vibration of the mold transmitted to the workpiece during use; during processing, the mold inclination needs to be adjusted by marking, and the marking error and alignment error cannot be correctly guaranteed. In addition, there are gaps between the gear rack and the bearing and the mold, which affect the processing accuracy; in addition, the existing jig installed on the workbench will eat up the stroke between the spindle and the workpiece, and most standard tools cannot be used. A homemade chuck is required, and tool changing is more troublesome. Summary of the invention

[0003] In order to solve the above problems, the present invention discloses a multi-mode ratio shaft keyway processing device.

[0004] The specific technical solutions are as follows:

[0005] A multi-mode ratio shaft keyway processing device comprises a rotating motor, wherein the output shaft of the rotating motor is a first worm shaft, a first worm wheel shaft matched with the first worm shaft is provided with a gear, the gear of the first worm wheel shaft is connected with a large gear gear, the large gear is arranged on a dividing shaft, the large gear and the dividing shaft are formed into an integral gear shaft, one end of the dividing shaft is connected with a dividing wheel, and the other end is connected with a pinion gear, the transmission ratio of the driven gear assembled with the pinion gear to the pinion gear is 1:1, the driven gear is also connected with a driven worm, the driven worm is assembled and connected with a driven worm wheel, the transmission ratio of the driven worm to the driven worm wheel is 1:40, a main shaft is provided at the center of the driven worm wheel, and the main shaft is fixedly connected with the driven worm wheel.

[0006] The transmission ratio between the first worm gear shaft and the first worm gear shaft is 5:1.

[0007] The gear transmission ratio between the large gear and the first worm gear shaft is 7:1.

[0008] The output end of the rotating motor is provided with a spline groove, one end of the first worm shaft connected to the output end of the motor is a spline, and the first worm shaft is inserted into the spline groove of the rotating motor.

[0009] The placement position of the rotating motor is parallel to the main shaft position.

[0010] The advantages of the present invention are: it can improve the rigidity during processing and ensure the effectiveness of the processed parts. In addition, a dividing wheel is used to replace the original rotating body. The 1:40 worm gear transmission pair of the dividing wheel can improve the accuracy, eliminate the previous processing and marking process, and thus improve the production efficiency; at the same time, while retaining the original function, a 1:1400 large transmission ratio solution is provided. The two transmission modes do not affect each other, and the worm gear has high transmission accuracy and high transmission ratio efficiency during the transmission process. This jig eliminates the previous mold-keeping mechanism and does not affect the use of standard milling cutter fixtures when used on vertical milling or horizontal milling. Tool changing and operation are very convenient, and there is no need to find the slope according to the line. It is suitable for mass production. In addition, the rotating motor drives the first worm gear to be parallel to the main shaft position, does not change the position of the milling cutter, and minimizes costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the present invention;

[0012] Figure 2 It is a schematic diagram of the structure of an existing processing device. DETAILED DESCRIPTION

[0013] The present invention is described in detail below in conjunction with the accompanying drawings. As shown in the figure, a multi-mode ratio shaft keyway processing device includes a rotating motor 1, the output shaft of the rotating motor is a first worm shaft 2, and a first worm wheel shaft 3 matched with the first worm shaft 2 is provided with a gear 31, the gear 31 of the first worm wheel shaft is gear-connected with a large gear 4, the large gear 4 is arranged on a dividing shaft 5, the large gear 4 and the dividing shaft 5 are made into an integral gear shaft, one end of the dividing shaft 5 is connected to a dividing wheel 6, and the other end is connected to a pinion 7, a driven gear 8 assembled with the pinion gear and the pinion 7 have a transmission ratio of 1:1, the driven gear 8 is also connected to a driven worm 9, the driven worm 9 is assembled and connected with a driven worm wheel 10, the transmission ratio of the driven worm 9 to the driven worm wheel 10 is 1:40, and a main shaft 11 is provided at the center of the driven worm wheel 10, and the main shaft 11 is fixedly connected to the driven worm wheel 10.

[0014] The transmission ratio between the first worm gear shaft 2 and the first worm gear shaft 3 is 5:1.

[0015] The transmission ratio between the large gear 4 and the gear 31 on the first worm gear shaft is 7:1.

[0016] The output end of the rotating motor is provided with a spline groove 101, and one end of the first worm shaft connected to the output end of the motor is a spline 21, and the first worm shaft is inserted into the spline groove of the rotating motor.

[0017] The rotating motor 1 is placed in a position parallel to the main shaft 11 .

[0018] Existing processing tools such as Figure 2 As shown, it can be seen that compared with the prior art, the indexing wheel is made into a gear shaft type. When a transmission ratio of 1:40 is required, the function can be achieved by rotating the indexing shaft, and the indexing shaft is directly output on the pinion. After the pinion is transmitted to the driven gear, the driven worm and the driven worm wheel of 1:40 are directly rotated; when a transmission ratio of 1:1400 is required, the rotating motor drives the first worm gear, and at this time the transmission ratio of the first worm gear shaft and the first worm wheel shaft is 5:1, and the transmission ratio of the first worm wheel shaft and the large gear is 7:1. In this way, the transmission ratio output by the rotating motor to the indexing shaft is 1:5*7=1:35; and then transmitted to the driven worm and the driven worm wheel of 1:40 through the pinion and the driven gear, and finally 1:35*40=1:1400 is achieved, and the required function is achieved. At the same time, the rotating motor of the present invention is parallel to the main shaft position and does not interfere with the milling cutter. By increasing the structure of the gear set, the function of the entire high transmission ratio is achieved. The transmission accuracy of the worm gear is high, the transmission links are few, and the processing accuracy of the workpiece is higher.

Claims

1. A multi-mode ratio shaft keyway processing device, comprising a rotating motor, characterized in that: The output shaft of the rotating motor is a first worm shaft, and a gear is provided on the first worm wheel shaft matched with the first worm shaft. The gear of the first worm wheel shaft is connected with the large gear gear, and the large gear is arranged on the indexing shaft. The large gear and the indexing shaft are made into an integral gear shaft, one end of the indexing shaft is connected with the indexing wheel, and the other end is connected with the pinion gear. The transmission ratio of the driven gear assembled with the pinion gear and the pinion gear is 1:1, and the driven gear is also connected with the driven worm, and the driven worm is assembled and connected with the driven worm wheel, and the transmission ratio of the driven worm and the driven worm wheel is 1:

40. A main shaft is provided at the center of the driven worm wheel, and the main shaft is fixedly connected with the driven worm wheel. The transmission ratio of the first worm wheel shaft and the first worm wheel shaft is 5:1; the transmission ratio of the gears on the large gear and the first worm wheel shaft is 7:

1.

2. The multi-mode ratio shaft keyway processing device according to claim 1, characterized in that: The output end of the rotating motor is provided with a spline groove, one end of the first worm shaft connected to the output end of the motor is a spline, and the first worm shaft is inserted into the spline groove of the rotating motor.

3. The multi-mode ratio shaft keyway processing device according to claim 1, characterized in that: The placement position of the rotating motor is parallel to the main shaft position.

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