Hybrid excitation claw pole pre-forged upper module electrode

Abstract

The utility model relates to the technical field of electrodes, and discloses a hybrid excitation claw pole pre-forging upper module electrode which comprises an electrode upper module and further comprises multiple sets of upper mold claws arranged in the circumferential direction of the electrode upper module, grooves are formed in the two sides of the multiple sets of upper mold claws, and the upper mold claws are arranged in the circumferential direction of the electrode upper module. A groove is formed in the upper die claw, a pole claw wing is formed between the groove and the outer wall of the end, close to the upper die claw, of the groove, the two sides of the groove are processed differently, the electrode wing formed outside the electrode claw is lengthened and thickened to increase the rigidity and hardness of the electrode wing, and the size of the electrode wing is kept the same from top to bottom. The strength of the electrode claw can be further improved, and the strength of the electrode claw can be integrally improved through thickening treatment of the concave supporting part, so that the problem that the service life is affected due to the fact that an electrode wing is short and thin in the prior art is solved, lengthening and thickening treatment of the electrode wing is achieved, and the service life of the electrode claw is prolonged. And the strength is increased by thickening the concave supporting part, so that the service life of the upper die claw is prolonged.

Description

Technical Field

[0001] This application relates to the field of electrode technology, and in particular to a hybrid excitation claw pole pre-forged upper module electrode. Background Technology

[0002] The existing claw electrode forging process generally follows the steps of blanking, upsetting, pre-forging, final forging, and trimming. Among these, pre-forging and final forging are the main deformation processes of the claw electrode, which need to be achieved through pre-forging molds and final forging molds. The upper module electrode of the pre-forging mold uses an electrode electrical pulse method to obtain the mold cavity.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: For hybrid excitation claw pole forgings, the transition radius at the junction of the magnet support surface and the magnet positioning surface does not exceed 0.5mm, which makes the modules on the existing hybrid excitation claw pole pre-forging mold prone to cracking on the outer side of the claw, resulting in a short service life. Summary of the Invention

[0004] This application provides a hybrid excitation claw pre-forged upper module electrode, which solves the problem of short and thin electrode wings affecting service life in the prior art. It achieves the lengthening and thickening of electrode wings, and increases strength by thickening the recessed support part, thereby extending the service life of the upper die claw.

[0005] This application provides a hybrid excitation claw pole pre-forged upper module electrode, including an electrode upper module, and further comprising:

[0006] The upper die claw has multiple sets arranged along the circumference of the upper electrode module. Each set of upper die claws has a groove on both sides, and a claw wing is formed between the groove and the outer wall of the upper die claw at the end closest to it. The length of the groove is less than the length of the claw wing, and the width and thickness of the claw wing are the same. A protrusion is formed between the groove and the outer wall of the upper die claw at the end furthest from it. A recessed support is provided near the center of the upper electrode module on the protrusion to increase the strength of the upper die claw during use.

[0007] Furthermore, the volume of the polar claw wings remains the same from top to bottom.

[0008] Furthermore, the length and thickness of the polar claw wings are increased and thickened, respectively.

[0009] Furthermore, the thickness of the recessed support portion is increased to enhance the strength of the upper die claw.

[0010] The technical solution provided in this application has at least the following technical effects or advantages:

[0011] This application increases the rigidity and hardness of the electrode wings by using different treatments on both sides of the groove to make the electrode wings formed on the outside of the electrode claw longer and thicker, while maintaining the same volume from top to bottom. This further increases the strength of the electrode claw. In addition, the thickening treatment of the recessed support part can improve the overall strength of the electrode claw. Therefore, it solves the problem of short and thin electrode wings affecting the service life in the prior art, and realizes the lengthening and thickening treatment of the electrode wings. Furthermore, the thickening of the recessed support part increases the strength and extends the service life of the upper die claw. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this application;

[0013] Figure 2 This is a structural schematic diagram of the cross-section of the upper die claw in this application;

[0014] Figure 3 This is a schematic diagram of the cross-section of the upper die claw without any improvements in this application;

[0015] Figure 4 This is a schematic diagram comparing the electrode claw before and after the improvement in this application.

[0016] In the figure: 100, upper electrode module; 101, upper mold claw; 102, groove; 103, electrode claw wing; 104, protrusion; 105, recessed support. Detailed Implementation

[0017] This application discloses a hybrid excitation claw electrode pre-forged upper module electrode. The technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0018] To better understand the above technical solution, the following will provide a detailed explanation of the above technical solution in conjunction with the accompanying drawings and specific implementation methods.

[0019] Example 1

[0020] Reference Figures 1-4A hybrid excitation claw pole pre-forging upper module electrode includes an upper electrode module 100 and further includes: multiple sets of upper die claws 101 arranged along the circumferential direction of the upper electrode module 100, the upper die claws 101 and the upper electrode module 100 being integrally formed, grooves 102 being formed on both sides of the multiple sets of upper die claws 101, and a claw wing 103 being formed between the groove 102 and the outer wall of the upper die claw 101 that is close to it, the length of the groove 102 being less than the length of the claw wing 103, the width and thickness of the claw wing 103 being the same, and a protrusion 104 being formed between the groove 102 and the outer wall of the upper die claw 101 that is far away from it, and a recessed support portion 105 being provided near the center of the upper electrode module 100 of the protrusion 104 to increase the strength of the upper die claw 101 in use;

[0021] It should be noted that: due to the high dimensional requirements of the electrode claw wings 103, with a maximum radius of 0.5mm, we adjusted the pre-forging die without altering the precision forging process to see if stress transfer could be achieved. Currently, the average lifespan of the upper pre-forging die for 1501060500 is around 4600 cycles, while the average lifespan of the lower precision forging die is around 6700 cycles. 90% of pre-forging upper die failures are due to an open radius on the outer side of the claw. This lifespan can be improved by adjusting the radius, width, and depth of the wings. Therefore, the groove 102 position of the upper die claw 101 was modified, resulting in the following treatment of the electrode wings:

[0022] The volume of the polar claw wings 103 remains the same from top to bottom;

[0023] The length and thickness of the extreme claw wings 103 are increased and thickened respectively, and the thickness of the recessed support portion 105 is increased to increase the strength of the upper mold claw 101.

[0024] After the above improvements to the upper die claw 101, the actual simulation results were compared. The forming force decreased and the mold stress was significantly reduced after the improvement. At first glance, the simulation showed an improvement effect. However, it should be noted that after the actual improvement, it is estimated that there will be a problem of short claws. It may be necessary to increase the claw height as needed.

[0025] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0026] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application 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 application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A hybrid excitation claw pole pre-forged upper module electrode comprising an electrode upper module (100), characterized in that, Also includes: The upper die jaw (101) is provided with a plurality of groups along the circumferential direction of the electrode upper die module (100). Both sides of the plurality of groups of the upper die jaw (101) are provided with grooves (102), and the groove (102) and the outer wall of the end close to the upper die jaw (101) form the electrode claw wing (103). The length of the groove (102) is less than the length of the electrode claw wing (103). The width and thickness of the electrode claw wing (103) are the same. The outer wall of the end away from the upper die jaw (101) forms a protruding part (104). The protruding part (104) is provided with a recessed support part (105) close to the position of the center of the electrode upper die module (100), which can increase the strength of the upper die jaw (101) in use.

2. A hybrid excitation claw pole pre-forged upper modular pole piece as defined in claim 1, wherein, The volume of the electrode claw wing (103) remains the same from top to bottom.

3. A hybrid excitation claw pole pre-forged upper modular pole piece as defined in claim 2 wherein, The length and thickness of the electrode claw wing (103) are respectively lengthened and thickened to supplement.

4. A hybrid excitation claw pole pre-forged upper modular pole piece as defined in claim 1, wherein, The thickness of the recessed support part (105) is thickened to supplement the strength of the upper die jaw (101).

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