Self-buckling iron core pressing and riveting tool capable of achieving automatic parallel separation

Abstract

The utility model belongs to the technical field of motor iron core machining, and particularly provides a self-buckling iron core pressing and riveting tool capable of achieving automatic parallel separation. A self-buckling iron core to be riveted is positioned and placed on the surface of the lower panel, then it is determined that an expansion core penetrates into an inner hole of the self-buckling iron core when an oil press is used, so that self-buckling iron core laminations are neat and not staggered, and the perpendicularity of the inner hole of the self-buckling iron core and the end face is ensured; the height limiting sleeve is used for limiting the height of the upper pressing plate, the precise parallelism of the upper pressing plate and the lower panel and the precise perpendicularity of the upper pressing plate and the expansion core are ensured, and precise and parallel up-and-down lifting movement can be automatically conducted in cooperation with supporting of the spring. And furthermore, the self-buckling iron core can be automatically separated in parallel and kept smooth after being pressed and riveted.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor iron core processing, and in particular relates to a self-locking iron core riveting tool capable of automatically separating in parallel. Background Art

[0002] In the process of making the motor core, the self-locking stator core needs to be riveted and shaped. The existing riveting tooling needs to manually adjust the fixed height of the upper pressure plate, which easily causes height inconsistency. When the core is separated after riveting, the tension of the upper pressure plate is unbalanced, causing the upper pressure plate to tilt and the sliding guide pin to be stuck and damaged. In severe cases, the upper pressure plate will be deformed due to the jamming of the guide pin, causing the core to be deformed and damaged. In addition, the processing accuracy requirements of the guide pin and guide sleeve are high, the production cost is high, the movement is unstable and not smooth, the riveting quality is unstable, the guide pin is easily damaged and needs to be replaced frequently, and the use cost is high. Therefore, there is an urgent need for a self-locking core riveting tool that can automatically separate in parallel. Utility Model Content

[0003] In view of the technical defects existing in the background technology, the utility model proposes a self-locking iron core pressure riveting tool that can be automatically separated in parallel, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0004] A self-locking iron core riveting tool that can be automatically separated in parallel, comprises a lower panel and an upper pressure plate, wherein spring core shafts are provided at the four corners of the lower panel, the upper end of the spring core shaft is provided with the upper pressure plate, a spring is provided on the outer side of the spring core shaft, a height limiting sleeve is provided on one side of each of the spring core shafts, a limit block is provided at the upper end of the height limiting sleeve corresponding to the upper part of the upper pressure plate, an expanding core is provided at the center of the upper pressure plate, an expanding core connecting frame is provided at the upper end of the expanding core, a first positioning hole matched with the expanding core is provided inside the lower panel, and positioning pieces are provided on both sides of the upper surface of the lower panel corresponding to the positioning hole.

[0005] As an improvement of the above solution, a lower bottom plate is provided at the lower end of the lower panel, one end of the spring abuts against the lower bottom plate, and the other end of the spring abuts against the upper pressure plate.

[0006] As an improvement of the above solution, a second positioning hole matched with the expansion core is provided inside the lower base plate.

[0007] As an improvement of the above solution, each of the spring core shafts is slidably connected to the upper pressure plate, and each of the height-limiting sleeves is slidably connected to the upper pressure plate.

[0008] As an improvement of the above solution, an upper pressure ring matched with the expansion core is provided at the lower end of the upper pressure plate.

[0009] As an improvement of the above solution, the upper pressure plate is slidably connected to the expansion core, and the upper pressure ring is slidably connected to the expansion core.

[0010] The utility model has the beneficial effect that: the lower bottom plate is installed on the working panel of the hydraulic press, and the core expansion connecting frame is installed at the output end of the hydraulic press. When pressing down, the pressure of the hydraulic press can be transmitted to the upper pressing plate to apply pressure to the iron core. After the installation is completed, the self-locking iron core to be riveted is placed on the surface of the lower panel and positioned by the positioning piece. Then, when the hydraulic press is determined, the expansion core penetrates the inner hole of the self-locking iron core, so that the self-locking iron core stacking sheets are neat and not misaligned, and the verticality of the inner hole of the self-locking iron core and the end face is ensured. When the hydraulic press is pressed down, , which will drive the upper pressure plate to move downward, so that the upper pressure ring applies uniform downward pressure to the top surface of the self-locking iron core. The height limiting sleeve is used to limit the height of the upper pressure plate and ensure the precise parallelism between the upper pressure plate and the lower panel and the precise verticality between the upper pressure plate and the expansion core, so as to ensure that the self-locking iron core can automatically separate in parallel and remain smooth after riveting. With the support of the spring, it can automatically perform precise and parallel up and down movements, further ensuring that the self-locking iron core can automatically separate in parallel and remain smooth after riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall perspective structure of the self-locking iron core riveting tooling capable of automatic parallel separation of the utility model;

[0012] Figure 2 The utility model is a schematic diagram of the top view of the lower panel of the self-locking iron core riveting tool that can be automatically separated in parallel.

[0013] Among them: lower panel 1, spring core shaft 11, spring 12, height limiting sleeve 13, limit block 14, first positioning hole 15, positioning piece 16, upper pressure plate 2, expansion core 21, expansion core connecting frame 22, upper pressure ring 23, lower bottom plate 3, second positioning hole 31, self-locking iron core 4. DETAILED DESCRIPTION

[0014] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0015] like Figure 1 and Figure 2As shown, a self-locking iron core riveting tool that can be automatically separated in parallel includes a lower panel 1 and an upper pressure plate 2, a spring core shaft 11 is provided at the four corners of the lower panel 1, the upper end of the spring core shaft 11 is provided with the upper pressure plate 2, the outer side of the spring core shaft 11 is provided with a spring 12, each spring core shaft 11 is provided with a height limiting sleeve 13 on one side, the upper end of the height limiting sleeve 13 is provided with a limit block 14 corresponding to the upper side of the upper pressure plate 2, an expansion core 21 is provided at the center of the upper pressure plate 2, an expansion core connecting frame 22 is provided at the upper end of the expansion core 21, a first positioning hole 15 matched with the expansion core 21 is provided inside the lower panel 1, and positioning pieces 16 are provided on both sides of the upper surface of the lower panel 1 corresponding to the positioning hole.

[0016] like Figure 1 As shown, it should be noted that a lower bottom plate 3 is provided at the lower end of the lower panel 1 , one end of the spring 12 abuts against the lower bottom plate 3 , and the other end of the spring 12 abuts against the upper pressure plate 2 .

[0017] like Figure 1 As shown, it should be noted that a second positioning hole 31 adapted to the expansion core 21 is provided inside the lower base plate 3 .

[0018] like Figure 1 As shown, it should be noted that each of the spring core shafts 11 is slidably connected to the upper pressing plate 2 , and each of the height-limiting sleeves 13 is slidably connected to the upper pressing plate 2 .

[0019] like Figure 1 As shown, it should be noted that an upper pressure ring 23 matched with the expansion core 21 is provided at the lower end of the upper pressure plate 2 .

[0020] like Figure 1 As shown, it should be noted that the upper pressing plate 2 is slidably connected to the expansion core 21 , and the upper pressing ring 23 is slidably connected to the expansion core 21 .

[0021] Working principle: Install the lower base plate 3 on the working panel of the hydraulic press, and install the expansion core connecting frame 22 on the output end of the hydraulic press. When pressing down, the pressure of the hydraulic press can be transmitted to the upper pressure plate 2, thereby applying pressure to the self-locking core 4. After installation, place the self-locking core 4 to be riveted on the surface of the lower panel 1, and use the positioning piece 16 to position it. Then, when the hydraulic press is determined, the expansion core 21 penetrates the inner hole of the self-locking core 4, so that the self-locking core 4 stacks neatly and without misalignment, and ensure the verticality of the inner hole of the self-locking core 4 and the end face. When the hydraulic press is pressed down, it will drive the upper The pressure plate 2 moves downward, so that the upper pressure ring 23 applies uniform downward pressure to the top surface of the self-locking iron core 4. The height limiting sleeve 13 is used to limit the height of the upper pressure plate 2 and ensure the precise parallelism between the upper pressure plate 2 and the lower panel 1 and the precise verticality between the upper pressure plate 2 and the expansion core 21, so as to ensure that the self-locking iron core 4 can automatically separate in parallel and remain smooth after riveting. With the support of the spring 12, it can automatically perform precise and parallel up and down lifting and lowering movements, further ensuring that the self-locking iron core 4 can automatically separate in parallel and remain smooth after riveting.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A self-locking iron core riveting tool that can be automatically separated in parallel, comprising a lower panel and an upper pressing plate, characterized in that: A spring core shaft is provided at the four corners of the lower panel, the upper end of the spring core shaft is provided with the upper pressure plate, a spring is provided on the outer side of the spring core shaft, a height limiting sleeve is provided on one side of each of the spring core shafts, a limit block is provided at the upper end of the height limiting sleeve corresponding to the upper side of the upper pressure plate, an expanding core is provided at the center of the upper pressure plate, an expanding core connecting frame is provided at the upper end of the expanding core, a first positioning hole matched with the expanding core is provided inside the lower panel, and positioning pieces are provided on both sides of the upper surface of the lower panel corresponding to the positioning hole.

2. The self-locking iron core riveting tool capable of automatic parallel separation according to claim 1 is characterized in that: A lower bottom plate is provided at the lower end of the lower panel, one end of the spring abuts against the lower bottom plate, and the other end of the spring abuts against the upper pressing plate.

3. The self-locking iron core pressure riveting tool capable of automatic parallel separation according to claim 2 is characterized in that: A second positioning hole matched with the expansion core is arranged inside the lower bottom plate.

4. The self-locking iron core pressure riveting tool capable of automatic parallel separation according to claim 1 is characterized in that: Each of the spring core shafts is slidably connected to the upper pressing plate, and each of the height-limiting sleeves is slidably connected to the upper pressing plate.

5. The self-locking iron core riveting tool capable of automatic parallel separation according to claim 1 is characterized in that: An upper pressure ring matched with the expansion core is provided at the lower end of the upper pressure plate.

6. The self-locking iron core pressure riveting tool capable of automatic parallel separation according to claim 5 is characterized in that: The upper pressing plate is slidably connected to the expansion core, and the upper pressing ring is slidably connected to the expansion core.

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