Capacitor housing flanging assembly and processing equipment thereof

Abstract

The application discloses a capacitor shell flanging assembly, which comprises a shaft body, wherein the shaft body is provided with a supporting part, a flanging part and a connecting part arranged coaxially, the radius of the supporting part is smaller than that of the connecting part, the flanging part is arranged between the supporting part and the connecting part and is connected with the supporting part and the connecting part smoothly, and an annular groove coaxially arranged with the flanging part is formed in the flanging part. In the capacitor shell flanging assembly, the flanging part is the shaft body, the shaft body is provided with the supporting part and the flanging part, when the aluminum capacitor shell is flanged, only the end of the shaft body with the supporting part needs to be extruded towards the inside of the capacitor shell, when the end of the capacitor shell enters the flanging part, the flanging effect can be achieved by being flared outwards, in the process, the supporting part has a supporting effect on the shell of the capacitor shell, can prevent the capacitor shell from being deformed due to stress extrusion, and can improve the qualified rate of capacitor shell processing.

Description

Technical Field

[0001] This invention relates to the field of capacitor casing flange technology, and more particularly to a capacitor casing flange assembly. Background Technology

[0002] During capacitor manufacturing, the aluminum capacitor casing needs to be flanged to fit with the capacitor cover for encapsulation. In actual processing, under the strong pressure of the flanging die, the open end of the aluminum capacitor casing is reversed outwards. During this process, since there are no internal support components for the aluminum capacitor casing, deformation occurs under the pressure of the flanging die, resulting in a low pass rate for the aluminum capacitor casing. In addition, the excess portion at the port needs to be cut off during the processing of the aluminum capacitor casing, requiring two steps, which is inefficient and urgently needs improvement. Summary of the Invention

[0003] To address the technical problems existing in the background art, the present invention proposes a capacitor shell flange assembly.

[0004] The present invention provides a capacitor housing flange assembly, comprising a shaft having a support portion, a flange portion, and a connecting portion arranged coaxially on the shaft. The radius of the support portion is smaller than the radius of the connecting portion. The flange portion is disposed between the support portion and the connecting portion and is smoothly connected to the support portion and the connecting portion. An annular groove coaxially arranged with the flange portion is also provided on the flange portion. The support portion can be adapted to extend coaxially into the capacitor housing.

[0005] Preferably, the shaft also has a blocking part, which is located on the side of the connecting part away from the flange, and the radius of the blocking part is larger than the radius of the connecting part. The blocking part and the connecting part are coaxially fixed to form an annular blocking surface. A bushing is coaxially movably sleeved on the connecting part. One end of the bushing has an annular conical surface arranged coaxially with the shaft. When one end of the bushing abuts against the annular blocking surface, the annular conical surface is coplanar with the annular end face of the flange. When the end of the support part away from the annular groove abuts against the bottom wall of the capacitor shell, the open end of the capacitor shell is located on the annular conical surface.

[0006] Preferably, the connecting part has a strip groove extending to the flange, and the inner wall of the bushing has a protrusion that matches the strip groove, and the strip groove and the protrusion are slidably connected.

[0007] Preferably, it also includes a limiting member, which is arranged perpendicularly to the shaft body, and the end face of the limiting member near the shaft body is disposed between the outer wall of the blocking part and the outer wall of the bushing. When the shaft body retracts to contact the limiting member, the bushing pushes the capacitor housing off the support part.

[0008] Preferably, it also includes a cutting blade, which is mounted on a blade holder and fixed to the motor output shaft mounted on the blade holder, and the cutting blade is arranged perpendicular to the shaft.

[0009] Preferably, it also includes an electric slide rail, on which the cutter holder is mounted so that the cutter moves closer to / away from the bushing. The travel path of the cutter is perpendicular to the shaft, and the shaft has a first moving position. When the shaft moves to the first position, the end face of the support is at the end point of its travel path, and the annular groove is located on the travel path of the cutter. The width of the annular groove is greater than the width of the cutter.

[0010] A processing device equipped with a capacitor housing flange assembly.

[0011] In this invention, the proposed capacitor casing flanging assembly includes a flanging component that is a shaft with a support portion and a flanging portion. When flanging an aluminum capacitor casing, it is only necessary to press the end of the shaft with the support portion into the inside of the capacitor casing. Once the end of the capacitor casing enters the flanging portion, it can expand outward to achieve the flanging effect. During this process, the support portion provides support for the capacitor casing, preventing deformation due to pressure and improving the pass rate of capacitor casing processing. At the same time, an annular groove is provided on the flanging portion, allowing the capacitor casing to be directly cut at a fixed position by a cutting blade, avoiding cumbersome processing steps and further improving the processing efficiency of the capacitor casing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of one embodiment of a capacitor housing flange assembly proposed in this invention;

[0013] Figure 2 This is a schematic diagram of another embodiment of the capacitor housing flange assembly proposed in this invention;

[0014] Figure 3 This is a schematic diagram of another embodiment and another state of the capacitor housing flange assembly proposed in this invention;

[0015] Figure 4 This is a schematic diagram of the structure of capacitor housing flange assembly A according to the present invention;

[0016] Figure 5 This is a schematic diagram showing the structural position of a capacitor housing flange assembly proposed in this invention;

[0017] Figure 6 This is a schematic diagram showing another state of the structural position of a capacitor housing flange assembly proposed in this invention;

[0018] Figure 7This is a schematic diagram illustrating the fit between the capacitor housing flange assembly and the capacitor housing according to the present invention. Detailed Implementation

[0019] like Figure 1 As shown, Figure 1 This is a schematic diagram of one embodiment of a capacitor casing flange assembly proposed in this invention.

[0020] Example 1

[0021] Reference Figure 1 The present invention proposes a capacitor housing flange assembly, comprising a shaft 1, on which a support portion 11, a flange portion 12, and a connecting portion 13 are coaxially arranged. The radius of the support portion 11 is smaller than the radius of the connecting portion 13. The flange portion 12 is disposed between the support portion 11 and the connecting portion 13 and is smoothly connected to the support portion 11 and the connecting portion 13. An annular groove 14 coaxially arranged with the flange portion 12 is also provided on the flange portion 12. The support portion 11 can be adapted to extend coaxially into the capacitor housing 2.

[0022] When the open end of the capacitor casing 2 enters the flange 12 and slides to cover the annular groove 14, the end of the support part 11 away from the annular groove 14 abuts against the bottom wall of the capacitor casing 2.

[0023] Reference Figure 1 and Figure 7 In practical use, the capacitor shell flange assembly is installed on a capacitor processing equipment. The shaft 1 moves along its axial direction and gradually enters the capacitor shell 2. The capacitor shell 2 has a deformation termination point B and a cutting point C. As the support part 11 gradually enters the capacitor shell 2, when the open end of the capacitor shell 2 contacts the bending point D on the shaft 1, the open end of the capacitor shell 2 deforms and folds outward until the shaft 1 stops moving. When the shaft 1 stops moving, the deformation of the open end of the capacitor shell 2 ends. At this time, the deformation termination point B on the capacitor shell 2 moves to the bending point D on the shaft 1, and the cutting point C on the capacitor shell 2 moves to the position F of the annular groove 14 on the shaft 1. The support part 11 provides support for the shell of the capacitor shell 2, which can prevent the capacitor shell 2 from being deformed by pressure and can improve the pass rate of the capacitor shell 2 processing. At the same time, the flange part 12 has an annular groove 14, which can be used to directly cut the capacitor shell 2 at a fixed position by the cutting blade 5, avoiding the cumbersome processing process and further improving the processing efficiency of the capacitor shell 2.

[0024] In the above embodiment 1, after the shaft 1 performs the flanged treatment on the capacitor shell 2, the capacitor shell 2 is fitted onto the support part 11 and the flanged part 12 of the shaft 1, which makes material unloading inconvenient.

[0025] Reference Figures 2-4Preferably, the shaft 1 also has a blocking part 15, which is located on the side of the connecting part 13 away from the flange part 12, and the radius of the blocking part 15 is larger than the radius of the connecting part 13. The blocking part 15 and the connecting part 13 are coaxially fixed to form an annular blocking surface 16. The connecting part 13 is coaxially movably sleeved with a bushing 3. One end of the bushing 3 has an annular conical surface 31 arranged coaxially with the shaft 1. When one end of the bushing 3 abuts against the annular blocking surface 16, the annular conical surface 31 is coplanar with the annular end face of the flange part 12. When the end of the support part 11 away from the annular groove 14 abuts against the bottom wall of the capacitor housing 2, the open end of the capacitor housing 2 is located on the annular conical surface 31.

[0026] Reference Figure 5 It also includes a limiting member 4, which is arranged perpendicularly to the shaft 1. The end face of the limiting member 1 near the shaft 1 is disposed between the outer wall of the blocking part 15 and the outer wall of the bushing 3. When the shaft 1 retracts to contact the limiting member 4, the bushing 3 pushes the capacitor housing 2 off the support part 11.

[0027] In this preferred embodiment, a bushing 3 is movably mounted on the outside of the connecting part 13. One end of the bushing 3 has an annular conical surface 31. When processing the capacitor housing 2, when the open end of the capacitor housing 2 moves to the bending point D on the shaft 1, the capacitor housing 2 drives the bushing 3 to move in the opposite direction to the shaft 1 until the bushing 3 abuts against the annular blocking surface 16. At this time, the bushing 3 moves synchronously with the shaft 1, and the annular conical surface 31 is coplanar with the annular end face of the flange part 12. After the capacitor housing 2 is processed, the shaft 1 drives the bushing 3 and the capacitor housing 2 to move in opposite directions. During this process, the bushing 3 contacts the limiting member 4, which prevents the bushing 3 and the capacitor housing 2 from continuing to move in opposite directions with the shaft 1. As the shaft 1 continues to move in opposite directions, the bushing 3 pulls the capacitor housing 2 off the support part 11 of the shaft 1, and the capacitor housing 2 is unloaded. This preferred embodiment can further improve the flange efficiency of the capacitor housing 2.

[0028] The above-mentioned preferred solution has completed the flanging of the capacitor shell 2. However, during the cutting process, the bushing 3 will rotate relative to the shaft 1, which may cause the capacitor shell 2 to rotate, affecting the cutting efficiency. At the same time, it is not convenient to position the cutting blade 5.

[0029] Reference Figure 3 Preferably, the connecting part 13 is provided with a strip groove 17 extending to the flange part 12, and the inner wall of the bushing 3 is provided with a protrusion 32 adapted to the strip groove 17, and the strip groove 17 and the protrusion 32 are slidably connected.

[0030] Refer to Figure 5 and Figure 6It also includes a cutting blade 5, which is mounted on a blade holder and fixed to the motor output shaft mounted on the blade holder. The cutting blade 5 is arranged perpendicular to the shaft body 1. It also includes an electric slide rail, on which the blade holder is mounted so that the cutting blade 5 moves closer to / away from the bushing 1. The travel path of the cutting blade 5 is perpendicular to the shaft body 1. The shaft body 1 has a first moving position. When the shaft body 1 moves to the first position, the end face of the support part 11 is at the end point of its travel path, and the annular groove 14 is located on the travel path of the cutting blade 5. The width of the annular groove 14 is greater than the width of the cutting blade 7.

[0031] In this preferred embodiment, a strip groove 17 is provided on the connecting part 13, and a protrusion 32 adapted to the strip groove 17 is provided on the inner wall of the bushing 3. The strip groove 17 and the protrusion 32 are slidably connected. When the strip groove 17 and the protrusion 32 are engaged, the bushing 3 can be prevented from rotating, and the capacitor shell 2 can be prevented from rotating, thus preventing the cutting efficiency from being affected during cutting. After the shaft 1 completes the flanging process of the capacitor shell 2, this position is set as the first moving position of the shaft 1. At the same time, the annular groove 14 is set on the stroke path of the cutting blade 5, so that the cutting C of the capacitor shell can be controlled at the position F of the annular groove 14 on the shaft 1, thereby achieving the positioning between the cutting blade 5 and the annular groove 14, and successfully completing the edge cutting process of the capacitor shell 2.

[0032] A processing device equipped with a capacitor housing flange assembly.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A capacitor casing flange assembly, characterized in that, Includes a shaft (1), on which a support part (11), a flange part (12), and a connecting part (13) are arranged coaxially. The radius of the support part (11) is smaller than the radius of the connecting part (13). The flange part (12) is disposed between the support part (11) and the connecting part (13) and is smoothly connected to the support part (11) and the connecting part (13). An annular groove (14) is also provided on the flange part (12) and is arranged coaxially with the flange part (12). The support part (11) can be adapted to extend coaxially into the capacitor housing (2). The shaft (1) also has a blocking part (15). The blocking part (15) is located on the side of the connecting part (13) away from the flange (12), and the radius of the blocking part (15) is greater than the radius of the connecting part (13). The blocking part (15) and the connecting part (13) are coaxially fixed to form an annular blocking surface (16). The connecting part (13) is coaxially movably sleeved with a bushing (3). One end of the bushing (3) has an annular conical surface (31) arranged coaxially with the shaft (1). When one end of the bushing (3) abuts against the annular blocking surface (16), the annular conical surface (31) is coplanar with the annular end face of the flange (12). When the end of the support part (11) away from the annular groove (14) abuts against the bottom wall of the capacitor shell (2), the open end of the capacitor shell (2) is located on the annular conical surface (31).

2. The capacitor housing flange assembly according to claim 1, characterized in that, The connecting part (13) has a strip groove (17) extending to the flange part (12), and the inner wall of the bushing (3) has a protrusion (32) that is adapted to the strip groove (17). The strip groove (17) and the protrusion (32) are slidably connected.

3. The capacitor housing flange assembly according to claim 2, characterized in that, It also includes a limiting member (4), which is arranged perpendicular to the shaft (1). The end face of the limiting member (1) near the shaft (1) is located between the outer wall of the blocking part (15) and the outer wall of the bushing (3). When the shaft (1) retracts to contact the limiting member (4), the bushing (3) pushes the capacitor housing (2) off the support part (11).

4. The capacitor housing flange assembly according to claim 2 or 3, characterized in that, It also includes a cutting blade (5), which is mounted on a blade holder and fixed to the motor output shaft mounted on the blade holder. The cutting blade (5) is arranged perpendicular to the shaft body (1).

5. The capacitor housing flange assembly according to claim 4, characterized in that, It also includes an electric slide rail, on which the cutter holder is mounted so that the cutter (5) moves closer to / away from the bushing (1). The travel path of the cutter (5) is perpendicular to the shaft (1). The shaft (1) has a first moving position. When the shaft (1) moves to the first position, the end face of the support (11) is at the end point of its travel path. The annular groove (14) is located on the travel path of the cutter (5), and the width of the annular groove (14) is greater than the width of the cutter (7).

6. A processing apparatus equipped with a capacitor housing flange assembly according to any one of claims 1-5.

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