Cam swing mechanism of needle winding machine

Abstract

The invention discloses a cam swing mechanism for a needle winding machine, wherein a cam and a cam sleeve form a conjugate cam assembly, which is connected to a winding machine transmission main shaft through an expansion sleeve; a cam swing rod, an incomplete cam, a bearing, and a support shaft form a swing rod assembly, which are connected by screws; the conjugate cam assembly rotates with the transmission main shaft, and during the rotation of the cam, the swing rod realizes a reciprocating cyclic motion of swinging, stationary, swinging, and stationary at an accurate angle through a cam curve corresponding to the cam's lift angle, far rest angle, return angle, and near rest angle; the swing rod transmits this reciprocating cyclic motion to an intermediate gear through an incomplete gear, and the intermediate gear transmits it to a winding needle rod again, so as to realize a reciprocating cyclic swing of the winding needle rod at a certain angle. By adjusting the tooth number ratio of the incomplete teeth to the intermediate gear, the needle rod can be reciprocated at different angles. The invention can improve the stator qualification rate in the case of high-speed winding.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical machinery equipment, and in particular relates to a cam swing mechanism of a needle winding machine. Background Art

[0002] In the manufacturing process of the motor stator, the variable frequency motor stator needs to be wound back and forth between two slots at a certain angle. The existing winding method is that the stator swings back and forth at an angle, and the winding head does not swing back and forth at an angle; this method requires the use of a large servo motor, which is costly. The servo motor is prone to heat, is unstable, and cannot adapt to high-speed winding. Summary of the invention

[0003] The purpose of the present invention is to provide a mechanism with simple structure, low processing cost and stable and accurate angle swing for winding head, which can replace the previous angle swing mechanism which is expensive, has poor swing stability and cannot adapt to high-speed winding.

[0004] The technical scheme of the present invention is as follows: the cam 1 and the cam sleeve 2 form a conjugate cam assembly, which is connected to the winding machine transmission main shaft through the expansion sleeve 3. The cam rocker 4, the incomplete gear 7, the bearing A6, and the support shaft 5 form a rocker assembly; the conjugate cam assembly rotates with the transmission main shaft. During the cam rotation movement, the cam curve profile corresponding to the lift angle, the far rest angle, the return angle, and the near rest angle of the cam 1 realizes the reciprocating cyclic motion of the cam rocker 4 in an accurate angle of swing, stillness, swing, and stillness. The cam rocker 4 transmits this reciprocating cyclic motion to the intermediate gear 11 through the incomplete gear 7, and the intermediate gear 11 transmits it to the winding needle bar again to realize the reciprocating cyclic swing of the winding needle bar at a certain angle. By adjusting the gear ratio between the incomplete gear 7 and the intermediate gear 11, the reciprocating swing of the needle bar at different angles will be obtained.

[0005] Beneficial effects: Due to the adoption of the above technical solution, the positions of the conjugate cam assembly and the rocker assembly are fixed reliably, easy to process and can ensure accuracy, so the relative movement of the conjugate cam assembly and the rocker assembly is accurate. This ensures that the winding head is wound accurately to the maximum extent. It also has low noise and long service life. Especially in the case of high-speed winding, it can improve the stator qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0007] Figure 1 It is a structural schematic diagram of the present invention.

[0008] Figure 2 for Figure 1 sectional view of . DETAILED DESCRIPTION

[0009] refer to Figure 1 , Figure 2 A cam swing mechanism of a needle winding machine includes: a conjugate cam assembly 14, a rocker assembly 13, an intermediate gear 11, a bearing D12, a bearing C9, a support 10, a bearing B8, an expansion sleeve 3, a support shaft 5, and a bearing A6; a cam 1 and a cam sleeve 2 form a conjugate cam assembly, and two cams 1 are mirror-mounted on the cam sleeve 2. The conjugate cam assembly is mounted on the winding support housing through the bearing C9. The cam assembly is connected to the winding machine transmission main shaft by the expansion sleeve 3. The bearing A6 is installed between the inner hole of the cam rocker 4 and the mounting support shaft 5, and the incomplete gear 7, the bearing A6, the support shaft 5 and the cam rocker 4 are connected to form a rocker assembly. The cam rocker assembly is fastened to the winding machine housing. The conjugate cam assembly rotates with the transmission main shaft. During the cam rotation movement, the cam curve corresponding to the cam lift angle, the far rest angle, the return angle, and the near rest angle realizes the swing, stillness, swing, and stillness of the rocker at an accurate angle reciprocating cycle. The intermediate gear 11 is mounted on the support 10 through the bearing B8, and the support 10 is fastened to the winding machine housing. The intermediate gear 11 is meshed with the incomplete gear of the rocker assembly 13. The rocker transmits this reciprocating motion to the intermediate gear 11 through the incomplete gear 7, and the intermediate gear 11 transmits it to the winding needle bar again to achieve a certain angle of reciprocating swing of the winding needle bar. By adjusting the gear ratio of the incomplete gear 7 and the intermediate gear 11, the reciprocating swing of the needle bar at different angles will be obtained. The angle of the support shaft 5 can be adjusted to adjust the gap between the gears.

Claims

1. A cam swing mechanism for a needle winding machine, characterized in that: A cam swing mechanism for a needle winding machine comprises: a conjugate cam assembly (14), a rocker assembly (13), an intermediate gear (11), a bearing D (12), a bearing C (9), a support (10), a bearing B (8), an expansion sleeve (3), a support shaft (5), and a bearing A (6); Conjugate cam assembly (14): two cams (1) are mounted on the cam sleeve (2) in a mirror-image manner to form a conjugate cam assembly (14); Rocker assembly (13): the incomplete gear (7) is fixedly connected to the cam rocker (4) to form a rocker assembly (13); The swing rod assembly (13) is mounted on the winding machine housing through a support shaft (5); the conjugate cam assembly (14) is connected to the winding machine transmission main shaft through an expansion sleeve (3); the conjugate cam assembly (14) is in surface contact with the cam swing rod (4); the intermediate gear (11) is mounted on a support (10) through a bearing B (8); the support (10) is fastened to the winding machine housing; the intermediate gear (11) is meshed with the incomplete gear of the swing rod assembly (13) for transmission; the two cams (1) in the conjugate cam assembly (14) are in a conjugate relationship; and the two cams (1) are fixedly connected to the cam sleeve (2).

2. The cam swing mechanism of a needle winding machine according to claim 1, characterized in that: The rocker assembly (13) is composed of an incomplete gear (7) and a cam rocker (4); the incomplete gear (7) is fixedly connected to the cam rocker (4).

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