Pressing ring bending equipment for stator core

Abstract

A pressing ring bending device for a stator core comprises a driving pressing roller and a driven pressing roller which are rotationally arranged, a gap for a workpiece to pass through is formed between the driving pressing roller and the driven pressing roller, and the driving pressing roller is arranged above the driven pressing roller in an up-down moving mode so as to adjust the size of the gap. When the workpiece is bent, the workpiece passes through the gap, the driving compression roller rotates and acts on the workpiece, and the workpiece acts on the driven compression roller to drive the driven compression roller to rotate, so that the workpiece is bent. According to the utility model, the driving compression roller and the driven compression roller are arranged, a workpiece passes through a gap between the driving compression roller and the driven compression roller, the driving compression roller is matched with the driven compression roller to bend the strip-shaped workpiece, the workpiece is bent for multiple times to form a whole ring, and then the two ends of the workpiece are connected through a welding process, so that the pressing ring of the stator iron core can be formed; when the stator core is manufactured by adopting the structure, plate materials are not wasted, the material cost is reduced, a complicated laser cutting process is not needed, and the production efficiency of products is improved.

Description

Technical Field

[0001] The utility model relates to a bending device, in particular to a pressing ring bending device for a stator core. Background Art

[0002] The pressing ring is one of the accessories of the motor stator core. The pressing ring is used to press the stator punching sheets on both sides of the stator core. The pressing ring is generally made by laser cutting. Generally, a square iron plate is laser cut into a ring-shaped pressing ring with a through hole in the middle. However, this laser cutting process has the following disadvantages: the sheet material around the iron plate and the sheet material corresponding to the through hole will be wasted, resulting in the sheet material cannot be fully utilized and the material cost is high.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The utility model aims to provide a stator core pressing ring bending device with simple and reasonable structure, high production efficiency, low material cost and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A pressure ring bending device for a stator core designed for this purpose is characterized in that it includes an active pressure roller and a driven pressure roller that are rotatably arranged, a gap for a workpiece to pass through is formed between the active pressure roller and the driven pressure roller, and the active pressure roller is movably arranged above the driven pressure roller to adjust the size of the gap; when the workpiece is bent, the workpiece passes through the gap, the active pressure roller rotates and acts on the workpiece, and the workpiece acts on the driven pressure roller to drive the driven pressure roller to rotate, thereby bending the workpiece.

[0006] It also includes a first driver, which is connected to the active pressure roller and drives the active pressure roller to rotate.

[0007] It also includes a second driver, which drives the connected mounting bracket, the first driver is fixed on the mounting bracket, and the second driver drives the first driver to move up and down.

[0008] It also includes a third driver and a screw assembly. The third driver drives the screw assembly, the screw assembly is connected to the mounting bracket, the first driver is fixed on the mounting bracket, and the third driver drives the first driver to move up and down through the screw assembly.

[0009] It also includes a workbench and a mounting frame arranged on the workbench. The mounting frame is provided with a rotating shaft, and the driven pressure roller is connected to the rotating shaft.

[0010] The first driver moves up and down on the workbench.

[0011] The driven pressure rollers are respectively arranged on both sides of the active pressure roller and are spaced apart from each other.

[0012] The device also includes a control device, which is electrically connected to the first driver.

[0013] The utility model provides a bending device for a pressing ring of a stator core. An active pressing roller and a driven pressing roller are arranged. A workpiece passes through a gap between the active pressing roller and the driven pressing roller. The active pressing roller cooperates with the driven pressing roller to press and bend the strip-shaped workpiece. After multiple bendings, the strip-shaped workpiece forms a complete ring. Then, the two ends of the workpiece are connected by a welding process, and the pressing ring of the stator core can be formed. The above structure is used to manufacture the pressing ring of the stator core, so that sheet materials will not be wasted, material costs are greatly reduced, and a complex laser cutting process is not required, thereby improving the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a simplified structural diagram of a bending device in one embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the processing of the stator core in one embodiment of the utility model.

[0016] Figure 3 It is a partial structural schematic diagram of a bending device in one embodiment of the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] See also Figure 1-Figure 3 The present invention relates to a bending ring bending device for a stator core, comprising a rotating active pressing roller 1 and a driven pressing roller 2, wherein a gap 4 for a workpiece 3 to pass through is formed between the active pressing roller 1 and the driven pressing roller 2, and the active pressing roller 1 is movably arranged above the driven pressing roller 2 to adjust the size of the gap 4; when the workpiece 3 is bent, the workpiece 3 passes through the gap 4, the active pressing roller 1 rotates and presses on the workpiece 3, and the workpiece 3 presses on the driven pressing roller 2 to drive the driven pressing roller 2 to rotate, and the workpiece 3 is bent under the cooperation of the active pressing roller 1 and the driven pressing roller 2; the workpiece 3 needs to pass through the gap 4 back and forth for many times (manually or driven by equipment) to form a ring shape of the workpiece 3, and each time before the workpiece 3 passes through the gap 4, the active pressing roller 1 needs to be adjusted downward to reduce the gap 4; the workpiece 3 is a strip-shaped sheet material, and after the workpiece 3 is bent into a ring shape, the two ends of the workpiece 3 are connected by a welding process to form a stator core pressing ring product.

[0019] The first driver 5 is also included. The first driver 5 is connected to the active pressure roller 1 and drives the active pressure roller 1 to rotate. The first driver 5 is a motor.

[0020] It also includes a second driver 6, which drives the connected mounting bracket 7. The first driver 5 is fixed on the mounting bracket 7. The second driver 6 drives the first driver 5 to move up and down to drive the active pressure roller 1 to move up and down. The second driver 6 is a cylinder.

[0021] Alternatively, it also includes a third drive and a screw assembly, the third drive drives the connected screw assembly, the screw assembly is connected to the mounting bracket 7, the first drive 5 is fixed on the mounting bracket 7, the third drive drives the first drive 5 to move up and down through the screw assembly to drive the active pressure roller 1 to move up and down, the third drive is a motor, the screw assembly includes a screw and a nut, the third drive drives the connected screw, the nut is movably arranged on the screw, and the nut is connected to the mounting bracket 7.

[0022] The utility model also comprises a workbench 8 and a mounting frame 9 arranged on the workbench 8 . A rotating shaft 10 is arranged on the mounting frame 9 , and the driven pressure roller 2 is connected to the rotating shaft 10 .

[0023] The first driver 5 moves up and down on the workbench 8 ; specifically, a mounting plate 11 is provided on the workbench 8 , and the second driver 6 or the third driver is fixed on the mounting plate 11 .

[0024] The driven pressure rollers 2 are respectively arranged on both sides of the active pressure roller 1 and are spaced apart from each other.

[0025] It also includes a control device, which is electrically connected to the first driver 5 and the second driver 6 or the third driver. The control device is a control circuit board for controlling the operation of the first driver 5 and the second driver 6 or the third driver.

[0026] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bending device for a stator core, characterized in that: The invention comprises an active pressure roller (1) and a driven pressure roller (2) which are arranged to rotate, a gap (4) for a workpiece (3) to pass through is formed between the active pressure roller (1) and the driven pressure roller (2), and the active pressure roller (1) is arranged above the driven pressure roller (2) to be movable up and down to adjust the size of the gap (4); when the workpiece (3) is bent, the workpiece (3) passes through the gap (4), the active pressure roller (1) rotates and acts on the workpiece (3), and the workpiece (3) acts on the driven pressure roller (2) to drive the driven pressure roller (2) to rotate, thereby causing the workpiece (3) to bend.

2. The stator core bending device according to claim 1, characterized in that: It also comprises a first driver (5), the first driver (5) drivingly connected to the active pressure roller (1), and the first driver (5) driving the active pressure roller (1) to rotate.

3. The stator core bending device according to claim 2, characterized in that: It also includes a second driver (6), the second driver (6) drives the connected mounting bracket (7), the first driver (5) is fixed on the mounting bracket (7), and the second driver (6) drives the first driver (5) to move up and down.

4. The stator core bending device according to claim 2, characterized in that: It also includes a third driver and a screw assembly, the third driver drives the screw assembly, the screw assembly is connected to the mounting bracket (7), the first driver (5) is fixed on the mounting bracket (7), and the third driver drives the first driver (5) to move up and down through the screw assembly.

5. The stator core bending device according to claim 3 or 4, characterized in that: It also includes a workbench (8) and a mounting frame (9) arranged on the workbench (8); a rotating shaft (10) is arranged on the mounting frame (9); and the driven pressure roller (2) is connected to the rotating shaft (10).

6. The stator core bending device according to claim 5, characterized in that: The first driver (5) moves up and down on the workbench (8).

7. The stator core bending device according to claim 1, characterized in that: The driven pressure rollers (2) are respectively arranged on both sides of the active pressure roller (1) and are spaced apart from each other.

8. The stator core bending device according to claim 2, characterized in that: It also includes a control device, which is electrically connected to the first driver (5).

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