Enameled wire winding simulation pre-stretching device

Abstract

An enamelled wire winding simulation pre-stretching device belongs to the technical field of enamelled wire paint film adhesion performance detection, and comprises a rack, the upper side of the rack is rotatably connected with a rotating disc, the center of the rotating disc is fixedly connected with a sleeve, the sleeve is used for winding an enamelled wire, the outer wall of the sleeve is provided with at least one sinking groove, and the upper side of the rotating disc is provided with a sliding groove along the radius direction of the rotating disc. Sliding blocks are slidably connected into the sliding grooves, supporting plates are fixedly connected to the upper sides of the sliding blocks, vertical plates are arranged on the upper sides of the supporting plates, and the vertical plates are located in the sinking grooves. The sliding block is driven by a driving device to slide along the sliding groove. According to the device, different positions of the simulation coil can be conveniently stretched, a plurality of stretching positions can be easily formed on the simulation coil by arranging a plurality of vertical plates, and the quality problem can be conveniently found in a subsequent saline pinhole test.

Description

Technical Field

[0001] The invention relates to the technical field of enameled wire production equipment, and in particular to an enameled wire simulated winding pre-stretching device. Background Art

[0002] In the performance inspection of enameled wire, the salt water pinhole test is mostly used to test the adhesion ability of the paint film of the enameled wire. In the enameled wire production enterprises, the enameled wire is wound into a coil for the salt water pinhole test. The existing stretching device can only stretch the enameled wire locally, and the pre-stretching has limitations. In addition, the skeleton on which the enameled wire is wound (such as the winding pole with an elliptical cross-section) is placed in a different position on the winding tooling, making it impossible for a single stretching device to adapt to the differences, and it is not convenient for a comprehensive inspection of the enameled wire production quality. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose an enameled wire simulated winding pre-stretching device, thereby solving the problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An enameled wire simulated winding pre-stretching device comprises a frame, a turntable is rotatably connected to the upper side of the frame, a sleeve is fixedly connected to the center of the turntable, the sleeve is used to wind the enameled wire, at least one sinking groove is arranged on the outer wall of the sleeve, a sliding groove is arranged on the upper side of the turntable along the radial direction of the turntable, the sliding groove corresponds to the sinking groove one by one, a slider is slidably connected in the sliding groove, a support plate is fixedly connected to the upper side of the slider, a vertical plate is arranged on the upper side of the support plate, and the vertical plate is located in the sinking groove;

[0006] The slide block is driven to slide along the slide groove by a driving device.

[0007] Preferably, a first spring is fixedly connected between the slider and the inner wall of one end of the slide groove, and the driving device includes a swivel, which is rotatably connected to the upper side of the frame and coaxial with the turntable, the upper side of the swivel is fixedly connected to the cross bar, and the upper side of one end of the cross bar is rotatably connected to the cylinder, the upper side of the support plate is fixedly connected to the support plate, and an arc-shaped protrusion is arranged at the bottom of the support plate, and the cylinder contacts the arc surface of the arc-shaped protrusion as the swivel rotates and forms a push to move the support plate.

[0008] Preferably, a sliding groove is provided at the bottom of the support plate, a sliding block is slidably connected in the sliding groove, an arc-shaped protrusion is located at the bottom of the sliding block, an adjusting screw is rotatably connected in the sliding groove, and the adjusting screw is threadedly connected to the sliding block.

[0009] Preferably, the vertical plates are provided with rounded corners or angular corners.

[0010] Preferably, the vertical plate is rotatably connected to the support plate, and a driving structure is arranged at the bottom of the support plate to drive the vertical plate to swing.

[0011] Preferably, the driving structure comprises a plurality of arc blocks staggered and fixedly connected to the side walls of the slide slot, a spring and a torsion spring are arranged between the rotating shaft of the vertical plate and the support plate, the lower end of the rotating shaft of the vertical plate is fixedly connected to two baffles, and the baffles are arranged correspondingly to the arc blocks.

[0012] Preferably, one of the arc blocks is provided with an inclined surface, and the bottom of the baffle corresponding to the conical surface is provided with a slope surface, and the slope surface is provided correspondingly to the inclined surface.

[0013] The advantages of the present invention are as follows: the enameled wire simulated winding pre-stretching device provided by the present invention simulates winding of the enameled wire coil part on the casing to form a simulated coil, and the swivel rotates one circle or multiple circles to stretch the simulated coil. When the swivel rotates, the cylinder on the upper side of the cross bar contacts the arc surface of the arc-shaped protrusion as the swivel rotates and pushes the support plate to move, so that the integral component composed of the support plate, the vertical plate, the support plate and the slider slides along the slide groove. The vertical plate moves out of the sink groove to stretch the wound coil. Multiple stretching can be performed, and it is convenient to stretch different positions of the simulated coil. By setting multiple vertical plates, it is easy to form multiple stretching positions on the simulated coil, which is convenient for subsequent saline pinhole tests to discover quality problems.

[0014] On the one hand, the present invention increases the local pressure of the enameled wire by means of rounded corners or edges through the forward and reverse swing of the vertical plate, making it easier to detect quality risks of the paint film adhesion ability, thereby improving the stretching quality; on the other hand, through the interaction between the slope of the bottom of the baffle and the inclined surface of the arc block, the vertical plate is lifted upward, forming a vibration inside the simulated coil, thereby simulating the wear of the enameled wire surface during the winding process, making it convenient to detect quality problems in subsequent tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a basic structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A local enlarged view of point E in FIG.

[0017] Figure 3 It is a schematic diagram of the internal structure of the turntable slide;

[0018] Figure 4 yes Figure 3 A local enlarged view of point F in FIG.

[0019] Figure 5 It is a schematic diagram of the connection structure between the vertical plate and the supporting plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the present invention provides an enameled wire simulated winding pre-stretching device, comprising a frame 1, a turntable 11 is rotatably connected to the upper side of the frame 1, a sleeve 12 is fixedly connected to the center of the turntable 11, the sleeve 12 is used to wind the enameled wire, cooperate with the unwinding device, and the produced enameled wire coil is partially simulated and wound on the sleeve 12, at least one sinking groove 13 is arranged on the outer wall of the sleeve 12, a slide groove 14 is arranged on the upper side of the turntable 11 along the radial direction of the turntable 11, the slide groove 14 corresponds to the sinking groove 13 one by one, a slider 15 is slidably connected in the slide groove 14, a support plate 16 is fixedly connected to the upper side of the slider 15, a vertical plate 17 is arranged on the upper side of the support plate 16, the vertical plate 17 is located in the sinking groove 13, and the vertical plate 17 is moved out of the sinking groove 13 to form a stretching for the wound coil;

[0023] The slide block 15 is driven by a driving device to slide along the slide groove 14 .

[0024] A first spring is fixedly connected between the slider 15 and the inner wall of one end of the slide groove 14. The driving device includes a swivel 2. The swivel 2 is driven to rotate by a motor built into the frame. The motor is a servo motor that can control the rotation of one or more circles and is used according to specific test requirements. The swivel 2 is rotatably connected to the upper side of the frame 1 and is coaxial with the turntable 11. The upper side of the swivel 2 is fixedly connected to a cross bar 21. The upper side of one end of the cross bar 21 is rotatably connected to a cylinder 22. The upper side of the support plate 16 is fixedly connected to a support plate 23. An arc-shaped protrusion 24 is arranged at the bottom of the support plate 23. As the swivel 2 rotates, the cylinder 22 contacts the arc surface of the arc-shaped protrusion 24 and pushes the support plate 16 to move.

[0025] During operation, the enameled wire coil part simulates winding on the sleeve 12 to form a simulated coil 10, and the swivel 2 rotates one circle or more to stretch the simulated coil 10. When the swivel 2 rotates, the cylinder 22 on the upper side of the cross bar 21 contacts the arc surface of the arc-shaped protrusion 24 as the swivel 2 rotates and pushes the support plate 16 to move, thereby sliding the integral component composed of the support plate 23, the vertical plate 17, the support plate 16 and the slider 15 along the slide groove 14. The vertical plate 17 moves out of the sink groove 13 to stretch the wound coil. It can be stretched multiple times and is convenient to stretch different positions of the simulated coil 10. By setting multiple vertical plates 17, it is easy to form multiple stretching positions on the simulated coil 10, which is convenient for subsequent saline pinhole tests to discover quality problems.

[0026] Furthermore, a sliding groove is set at the bottom of the support plate 23, and a sliding block is slidably connected in the sliding groove. The arc-shaped protrusion 24 is located at the bottom of the sliding block. The adjusting screw 231 is rotatably connected in the sliding groove. The adjusting screw 231 is threadedly connected to the sliding block. By rotating the adjusting screw 231, the sliding block slides in the sliding groove, and then the position of the arc-shaped protrusion 24 is fine-tuned, and the stretching amount is fine-tuned. Scale lines are set on the side of the support plate 23 to provide a reference for the position adjustment amount.

[0027] Example 2

[0028] like Figures 1 to 5 As shown, the vertical plate 17 is provided with rounded corners or edges 171, the vertical plate 17 is rotatably connected to the support plate 16, a driving structure is provided at the bottom of the support plate 16 to drive the vertical plate 17 to swing, the driving structure includes a plurality of arc blocks 3 fixedly connected to the side walls of the slide groove 14 in an offset manner, a spring and a torsion spring are provided between the rotating shaft of the vertical plate 17 and the support plate 16, two baffles 31 are fixedly connected to the lower end of the rotating shaft of the vertical plate 17, the baffles 31 are provided correspondingly to the arc blocks 3, when the baffles 31 of the vertical plate 17 move, they will be deflected if blocked by the arc blocks 3, when the baffles 31 are deflected to a certain angle, they will no longer be blocked by the arc blocks 3, and the vertical plate 17 can continue to move.

[0029] One of the arc blocks 3 is provided with an inclined surface 32 , and a slope surface 33 is provided at the bottom of the baffle 31 corresponding to the conical surface, and the slope surface 33 is provided corresponding to the inclined surface 32 .

[0030] In Example 2, the winding skeleton formed by injection molding in the production of the motor may have sharp edges or winding poles with elliptical cross-sections, which may cause local uneven stretching of the wound enameled wire. During the outward stretching of the vertical plate 17, the arc block 3 blocks the baffle 31 on one side, causing the vertical plate 17 to rotate. After the baffle 31 on one side is separated from the arc block 3, the torsion spring resets the vertical plate 17, and the baffle 31 on the other side blocks the other side, causing the baffle 31 to reverse. The positive and negative swinging of the vertical plate 17 and the practical rounded corners or sharp edges 171 increase the local pressure on the enameled wire, making it easier to detect quality hazards of the paint film adhesion ability, thereby improving the stretching quality.

[0031] Furthermore, due to the difference in the placement position of the winding pole on the equipment, the enameled wire will float axially when wound on the winding pole, and the axial floating will cause wear on the surface of the enameled wire. The existing technology cannot achieve this type of stretching. The present invention, through the interaction between the slope 33 at the bottom of the baffle 31 and the inclined surface 32 of the arc block 3, lifts the vertical plate 17 upward, and forms a vibration inside the simulated coil 10, thereby simulating the wear on the surface of the enameled wire during the winding process, which is convenient for subsequent tests to detect quality problems.

Claims

1. An enameled wire simulated winding pre-stretching device, comprising a frame (1), a turntable (11) rotatably connected to the upper side of the frame (1), a sleeve (12) fixedly connected to the center of the turntable (11), the sleeve (12) being used for winding the enameled wire, characterized in that: At least one sinking groove (13) is arranged on the outer wall of the sleeve (12); a sliding groove (14) is arranged on the upper side of the rotating disk (11) along the radial direction of the rotating disk (11); the sliding groove (14) corresponds to the sinking groove (13) one by one; a sliding block (15) is slidably connected in the sliding groove (14); the upper side of the sliding block (15) is fixedly connected to a supporting plate (16); a vertical plate (17) is arranged on the upper side of the supporting plate (16); and the vertical plate (17) is located in the sinking groove (13); The slide block (15) is driven by a driving device to slide along the slide groove (14).

2. The enameled wire simulated winding pre-stretching device according to claim 1, characterized in that: A first spring is fixedly connected between the slider (15) and the inner wall of one end of the slide groove (14). The driving device comprises a rotating ring (2). The rotating ring (2) is rotatably connected to the upper side of the frame (1) and is coaxial with the turntable (11). The upper side of the rotating ring (2) is fixedly connected to a cross bar (21). The upper side of one end of the cross bar (21) is rotatably connected to a cylinder (22). The upper side of the support plate (16) is fixedly connected to a support plate (23). An arc-shaped protrusion (24) is arranged at the bottom of the support plate (23). As the rotating ring (2) rotates, the cylinder (22) contacts the arc surface of the arc-shaped protrusion (24) and pushes the support plate (16) to move.

3. The enameled wire simulated winding pre-stretching device according to claim 2, characterized in that: A sliding groove is arranged at the bottom of the support plate (23), a sliding block is slidably connected in the sliding groove, an arc-shaped protrusion (24) is located at the bottom of the sliding block, an adjusting screw (231) is rotatably connected in the sliding groove, and the adjusting screw (231) is threadedly connected to the sliding block.

4. The enameled wire simulated winding pre-stretching device according to claim 2, characterized in that: The vertical plate (17) is provided with rounded corners or angular corners (171).

5. The enameled wire simulated winding pre-stretching device according to claim 2, characterized in that: The vertical plate (17) is rotatably connected to the support plate (16), and a driving structure is arranged at the bottom of the support plate (16) to drive the vertical plate (17) to swing.

6. The enameled wire simulated winding pre-stretching device according to claim 5, characterized in that: The driving structure comprises a plurality of arc blocks (3) staggered and fixedly connected to the side wall of the slide groove (14); a spring and a torsion spring are arranged between the rotating shaft of the vertical plate (17) and the support plate (16); the lower end of the rotating shaft of the vertical plate (17) is fixedly connected to two baffles (31); and the baffles (31) are arranged correspondingly to the arc blocks (3).

7. The enameled wire simulated winding pre-stretching device according to claim 6, characterized in that: One of the arc blocks (3) is provided with a slope (32), and the bottom of the baffle (31) corresponding to the conical surface is provided with a slope (33), and the slope (33) and the slope (32) are provided correspondingly.

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