Vehicle motor high-conductivity fiber grounding ring and processing device

Abstract

A vehicle motor high-conductivity fiber grounding ring of the present invention comprises a grounding body, an inner ring hole, a circular hole, a sinking groove and a through hole, and a processing device for forming the inner ring hole comprises a placing plate, a supporting assembly, a cutting mechanism and a fixing mechanism. The cutting mechanism and the fixing mechanism are matched to stably fix a material blank in a left-right clamping and front-back side downward pressing limiting mode while the annular cutter moves downwards, and the fixing strength is gradually enhanced along with downward movement of the annular cutter, so that the stability of the material blank is greatly improved; and waste in the annular cutter can be automatically pushed out while the annular cutter completes cutting and moves upwards, secondary cutting is facilitated, the annular cutter can be rotationally cut in a limiting and guiding mode through cooperation of the supporting assembly and the cutting mechanism, the rotating stability of the annular cutter is guaranteed, and the annular cutting precision is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of grounding rings, in particular to a highly conductive fiber grounding ring for a motor used in a vehicle and a processing device thereof. Background Art

[0002] A grounding ring is a component used in electrical and electronic equipment. Its main purpose is to provide a low-impedance path to safely conduct static electricity, lightning strikes or fault currents to the earth. Effective grounding can significantly improve the safety, stability and performance of the system. Highly conductive fiber grounding rings combine the unique properties of highly conductive fiber materials and have excellent conductivity. Such grounding rings are typically used in application scenarios that require efficient and reliable grounding solutions.

[0003] Existing high-conductivity fiber grounding rings have many advantages over ordinary grounding rings, but they still have shortcomings: most of the existing high-conductivity fiber grounding rings are split structures, formed by multi-layer press-assembly, and have poor precision. Moreover, during long-term use, due to the influence of factors such as thermal expansion and contraction, mechanical vibration, etc., the layers of the high-conductivity fiber grounding rings may separate or have poor contact, resulting in a decrease in conductivity.

[0004] In order to solve the above problems, the present invention provides a highly conductive fiber grounding ring for a motor used in a vehicle and a processing device thereof. Summary of the invention

[0005] The technical problem to be solved by the present invention is achieved by the following technical scheme: a highly conductive fiber grounding ring for an automotive motor, comprising a grounding body, an inner ring hole penetrating through the middle of the upper end face of the grounding body, the inner ring face of the grounding body evenly provided with circular holes perpendicular to the ring body axis along its circumferential direction, the circular holes penetrate to the outer ring face, the upper end face of the grounding body and the circular holes are provided with recessed grooves at positions corresponding to the circular holes, the upper end face of the grounding body is symmetrically provided with through holes along its diameter line, and the through holes and the circular holes are both provided with inverted inner fillets at their openings.

[0006] Among them: in the above-mentioned process of opening the inner ring hole, a special processing device is required, which includes a placement plate, a support assembly, a cutting mechanism and a fixing mechanism. The support assembly is installed on the upper end surface of the placement plate, and the cutting mechanism is installed in the middle of the support assembly.

[0007] The cutting mechanism includes an L-shaped mounting plate symmetrically mounted on a supporting assembly, a lifting assembly being commonly mounted on the lower end surfaces of the horizontal sections of the two L-shaped mounting plates, a circular cutting assembly being commonly mounted on the opposite surfaces of the horizontal sections of the two L-shaped mounting plates, and a pushing assembly for automatically pushing out the cut waste is arranged in the circular cutting assembly.

[0008] The fixing mechanism comprises a pressing and clamping assembly symmetrically arranged below the supporting assembly and a pressing assembly symmetrically installed on the lifting assembly.

[0009] The support assembly includes an L-shaped support plate symmetrically installed on the placement plate, a circular ring plate is installed between the L-shaped support plates, a clearance hole coaxial with the circular ring plate is opened in the middle of the placement plate, elastic telescopic rods are evenly installed along the outer wall of the upper end of the circular ring plate, and the telescopic ends of the elastic telescopic rods are rotatably installed with balls, and rectangular through holes are opened on the horizontal sections of the L-shaped support plates, and extrusion blocks are arranged in the rectangular through holes, and the extrusion blocks cooperate with the extrusion clamping assembly.

[0010] Furthermore, the lifting assembly includes a cylinder installed on the lower end surface of the horizontal section of the L-shaped mounting plate, the vertical section of the L-shaped mounting plate is installed on the horizontal section of the L-shaped support plate, and the telescopic ends of the cylinder are installed with lifting blocks. The cross-section of the lifting blocks is a horizontal U-shaped structure, and the front and rear ends of the lifting blocks are jointly installed with arc plates, and the two arc plates are symmetrical front and back.

[0011] Furthermore, the circular cutting assembly includes a connecting plate, connecting plates are installed on the opposite surfaces of the horizontal sections of the L-shaped mounting plate, and mounting plates are installed between the connecting plates. A rotating motor is installed on the mounting plate through a motor seat, and the output shaft of the rotating motor is extended to the bottom of the mounting plate. A lifting cylinder is arranged under the mounting plate, and the lifting cylinder is a telescopic structure. The output shaft of the rotating motor is connected to the fixed end of the lifting cylinder, and an annular cutter is installed on the lifting end of the lifting cylinder. A limiting ring plate is fixedly installed on the outer wall of the lifting section of the lifting cylinder. The thickness of the limiting ring plate near the outer wall is less than the thickness of the middle part. The position of the limiting ring plate near the outer wall is slidably connected to the inside of the lifting block, and an annular guide groove is provided on the lower end surface of the limiting ring plate, and the balls on the elastic telescopic rod are all matched with the annular guide groove.

[0012] Furthermore, the pushing assembly includes an extrusion spring, which is installed on the inner top end of the fixed section of the lifting cylinder. The other end of the extrusion spring is connected to a shifting circular plate, and a T-shaped push block is installed at the lower end of the shifting circular plate. The horizontal section of the T-shaped push block is set in the annular cutter, and the outer wall of the vertical section of the T-shaped push block is set up and down and is set at the center position of the annular cutter.

[0013] Furthermore, the outer wall of the fixed section of the lifting cylinder is evenly provided with long holes, and the lower end of the circular ring plate is provided with an annular slide groove. Limit rods are slidably installed in the annular slide groove at positions corresponding to the long holes. The end of the limit rod close to the T-shaped push block passes through the corresponding long hole and extends to the bottom of the shift circular plate. The limit rod slides vertically in the long hole.

[0014] Furthermore, the upper portion of the extrusion block is a vertical structure and is slidably connected to the rectangular through hole, and the lower portion of the extrusion block is an inclined structure that gradually inclines toward one side of the vertical section of the L-shaped support plate.

[0015] Furthermore, the extrusion clamping assembly includes a sliding groove, a sliding groove is opened on the placement plate below the horizontal section of the L-shaped support plate, a sliding plate is slidably arranged in the sliding groove, a rubber clamp is installed on the end surface of the upper part of the sliding plate close to the clearance hole, and the end surface of the lower part of the sliding plate away from the clearance hole is connected to the sliding groove through a restoring spring.

[0016] Furthermore, the downward pressing assembly includes a bending rod, and a plurality of bending rods are evenly installed along the arc direction of the lower end of the front-to-back symmetrical arc plate, and an arc pressure plate is commonly installed at the lower ends of the plurality of bending rods. The vertical section of the bending rod is an elastic telescopic structure, and the cross-section of the arc pressure plate is an L-shaped structure.

[0017] Beneficial effects:

[0018] 1. The integrated high-conductivity fiber grounding ring provided by the present invention does not require multi-layer press-fitting, has higher precision, is not easily affected by different environments, and will not be delaminated, so that the conductivity is more stable and the service life is longer.

[0019] 2. The processing device provided by the present invention can clamp the blank on the left and right and press the front and rear sides downward to limit the blank stably when the annular cutter moves downward through the cutting mechanism and the fixing mechanism, and the fixing strength is gradually enhanced as the annular cutter moves downward, which greatly improves the stability of the blank. It can also automatically push out the waste material inside the annular cutter when the annular cutter moves upward after cutting, which is convenient for cutting again. The support component cooperates with the cutting mechanism to perform limited and guided rotation cutting on the annular cutter, which greatly improves the stability of the rotation of the annular cutter and improves the accuracy of the annular cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the grounding body of the present invention.

[0021] Figure 2 The structure of the processing device of the present invention is shown in FIG. Figure 1 .

[0022] Figure 3 The structure of the processing device of the present invention is shown in FIG. Figure 2 .

[0023] Figure 4 For the present invention Figure 3 A magnified view of.

[0024] Figure 5 It is a partial structural schematic diagram of the ring cutting assembly of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the ring cutting component and the pushing component of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the pressing component of the present invention.

[0027] Figure 8 It is a schematic structural diagram of the L-shaped plate and lifting assembly of the present invention.

[0028] In the figure: 1, grounding body; 11, inner ring hole; 12, round hole; 13, sink groove; 14, through hole; 2, placement plate; 21, clearance hole; 3, support assembly; 31, L-shaped support plate; 32, circular ring plate; 33, elastic telescopic rod; 34, ball bearing; 35, extrusion block; 4, cutting mechanism; 41, L-shaped plate; 42, lifting assembly; 421, cylinder; 422, lifting block; 423, arc plate; 43, ring cutting assembly; 431, connecting plate; 432, mounting plate; 433, rotating motor; 4 34. Lifting cylinder; 435. Annular cutter; 436. Limiting ring plate; 437. Annular guide groove; 438. Long hole; 439. Annular slide groove; 4310. Limiting rod; 44. Pushing assembly; 441. Extrusion spring; 442. Shifting circular plate; 443. T-shaped pushing block; 5. Fixing mechanism; 51. Extrusion clamping assembly; 511. Sliding groove; 512. Slide plate; 513. Rubber clamping block; 514. Restoring spring; 52. Pressing assembly; 521. Bending rod; 522. Arc pressure plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 The present invention provides a technical solution: a highly conductive fiber grounding ring for a motor for a vehicle, comprising a grounding body 1, an inner ring hole 11 is formed through the middle of the upper end surface of the grounding body 1, circular holes 12 perpendicular to the ring body axis are uniformly formed on the inner ring surface of the grounding body 1 along its circumferential direction, the circular holes 12 are formed through to the outer ring surface, recessed grooves 13 are formed at positions corresponding to the upper end surface of the grounding body 1 and the circular holes 12, through holes 14 are formed symmetrically front and back along the diameter line of the upper end surface of the grounding body 1, and inner fillets are formed at the openings of the through holes 14 and the circular holes 12.

[0031] See also Figure 1 , Figure 2 , Figure 6In this embodiment, in which: in the process of opening the inner ring hole 11, a special processing device is required, which includes a placing plate 2, a supporting assembly 3, a cutting mechanism 4 and a fixing mechanism 5. The upper end surface of the placing plate 2 is installed with the supporting assembly 3, and the cutting mechanism 4 is installed in the middle of the supporting assembly 3; the cutting mechanism 4 includes an L-shaped plate 41 symmetrically installed on the supporting assembly 3, and a lifting assembly 42 is commonly installed on the lower end surfaces of the horizontal sections of the two L-shaped plates 41, and a ring cutting assembly 43 is commonly installed on the opposite surfaces of the horizontal sections of the two L-shaped plates 41, and a pushing assembly 44 for self-pushing the cutting waste is arranged in the ring cutting assembly 43; the fixing mechanism 5 includes an extrusion clamping assembly 51 symmetrically arranged below the supporting assembly 3 and a pressing assembly 52 symmetrically installed on the lifting assembly 42.

[0032] See also Figure 2 The support assembly 3 includes an L-shaped support plate 31 symmetrically installed on the placement plate 2, and a circular plate 32 is installed between the L-shaped support plates 31. A clearance hole 21 coaxial with the circular plate 32 is opened in the middle of the placement plate 2. When working, the blank to be cut is placed at the clearance hole 21 on the placement plate 2 below the circular plate 32.

[0033] See also Figure 1 , Figure 8 The lifting assembly 42 includes a cylinder 421 installed on the lower end surface of the horizontal section of the L-shaped plate 41, the vertical section of the L-shaped plate 41 is installed on the horizontal section of the L-shaped support plate 31, and the telescopic ends of the cylinder 421 are installed with lifting blocks 422. The cross-section of the lifting block 422 is a horizontal U-shaped structure. The front and rear ends of the lifting block 422 are jointly installed with arc plates 423, and the two arc plates 423 are symmetrical front to back; rectangular through holes are opened on the horizontal section of the L-shaped support plate 31, and extrusion blocks 35 are arranged in the rectangular through holes. The upper part of the extrusion block 35 is a vertical structure and is slidably connected to the rectangular through holes. The lower part of the extrusion block 35 is an inclined structure that gradually inclines toward one side of the vertical section of the L-shaped support plate 31, and the extrusion block 35 cooperates with the extrusion clamping assembly 51.

[0034] See also Figure 1The extrusion clamping assembly 51 includes a sliding groove 511, and a sliding groove 511 is opened on the placement plate 2 located below the horizontal section of the L-shaped support plate 31. A slide plate 512 is slidably arranged in the sliding groove 511, and a rubber clamping block 513 is installed on the end surface of the upper part of the slide plate 512 close to the clearance hole 21. The end surface of the lower part of the slide plate 512 away from the clearance hole 21 is connected to the sliding groove 511 through a restoring spring 514; during operation, the cylinder 421 extends to drive the lifting block 422 to move downward and drive the extrusion block 35 to slide down in the rectangular through hole. Due to the structure of the extrusion block 35, the lifting block 422 drives the bottom extrusion block 35 to slide downward in the rectangular through hole during the downward movement. The inclined surface structure of the lower part of the extrusion block 35 will contact the top of the slide plate 512 when it moves downward. The downward pressure of the inclined structure of the lifting block 422 causes the slide plate 512 to move toward the blank in the sliding groove 511, thereby driving the rubber clamping block 513 to clamp the left and right outer walls of the blank.

[0035] See also Figure 1 , Figure 7 The pressing assembly 52 includes a bending rod 521, and a plurality of bending rods 521 are evenly installed at the lower end of the front-to-back symmetrical arc plate 423 along its arc direction. An arc pressure plate 522 is installed at the lower end of the plurality of bending rods 521. The vertical section of the bending rod 521 is an elastic telescopic structure, and the cross section of the arc pressure plate 522 is an L-shaped structure. During operation, the cylinder 421 drives the arc plate 423 to move downward synchronously through the lifting block 422, and the bending rod and the arc pressure plate 522 on the arc plate 423 press and limit the front and rear side positions of the blank; when the annular cutter 435 moves to contact the blank, the extrusion block 35 clamps and fixes the left and right outer walls of the blank, and the arc pressure plate 522 limits and presses and fixes the front and rear positions of the blank, and the blank is fixed in multiple directions, without the need for manual or mechanical fixation of the blank, which reduces the processing cost and ensures the stability of the blank.

[0036] See also Figure 4 , Figure 5 , Figure 6The ring cutting assembly 43 includes a connecting plate 431, and connecting plates 431 are installed on the opposite surfaces of the horizontal sections of the L-shaped plate 41. A mounting plate 432 is installed between the connecting plates 431. A rotating motor 433 is installed on the mounting plate 432 through a motor seat. The output shaft of the rotating motor 433 is extended to the bottom of the mounting plate 432. A lifting cylinder 434 is arranged under the mounting plate 432. The lifting cylinder 434 is a telescopic structure. The output shaft of the rotating motor 433 is connected to the fixed end of the lifting cylinder 434. It should be noted that the upper part of the lifting cylinder 434 provided in this embodiment is a telescopic structure, and the fixed sections of the lifting cylinder 434 slide relative to each other and cannot rotate relative to each other, so as to ensure that the motor drives the ring cutting knife to cut the workpiece normally through the lifting cylinder 434; a ring cutting knife 435 is installed at the lifting end of the lifting cylinder 434, and a limiting ring plate 436 is fixedly installed on the outer wall of the lifting section of the lifting cylinder 434. The thickness of the limiting ring plate 436 near the outer wall is less than the thickness of the middle part The position of the limit ring plate 436 near the outer wall is slidably connected to the inside of the lifting block 422. When working, the cylinder 421 drives the limit ring plate 436 to move downward through the lifting block 422. The limit ring plate 436 moves downward to extend the lifting cylinder 434, and the annular cutter 435 on the fixed section of the lifting cylinder 434 also moves gradually toward the blank, until the annular cutter 435 gradually moves to contact with the top of the blank, and then the rotating motor 433 is started, and the rotating motor 433 drives the lifting cylinder 434 to extend. The annular cutter 435 is driven to rotate and perform annular cutting on the middle part of the embryo. The cylinder 421 cooperates with the rotary motor 433 to gradually move downward while performing the rotation cutting. When the lifting cylinder 434 rotates, the limiting ring plate 436 also rotates. Due to the limiting cooperation between the limiting ring plate 436 and the lifting plate, and the cooperation between the limiting ring plate 436 and the multiple spring telescopic rods, the limiting ring plate 436 is limited in rotation, thereby ensuring the stability of the annular cutter 435 during the rotation cutting.

[0037] See also Figure 3 , Figure 4 The upper end of the circular ring plate 32 is evenly installed with elastic telescopic rods 33 along its outer wall, and the telescopic ends of the elastic telescopic rods 33 are rotatably installed with balls 34. The lower end surface of the limit ring plate 436 is provided with an annular guide groove 437, and the balls 34 on the elastic telescopic rods 33 are matched with the annular guide groove 437. During operation, when the annular cutter 435 moves to contact the blank, the limit ring plate 436 also moves down to the specified position, and the annular guide groove 437 on the limit ring plate 436 contacts the balls 34 on the elastic telescopic rod 33, so that the stability of the annular cutter 435 on the limit ring plate 436 during operation is improved through the cooperation of multiple spring telescopic rods and the annular guide groove 437, thereby ensuring the ring cutting effect.

[0038] See also Figure 6The pushing assembly 44 includes an extrusion spring 441, which is installed on the inner top end of the fixed section of the lifting cylinder 434. The other end of the extrusion spring 441 is connected to a shifting circular plate 442. A T-shaped push block 443 is installed at the lower end of the shifting circular plate 442. The horizontal section of the T-shaped push block 443 is arranged in the annular cutter 435. The outer wall of the vertical section of the T-shaped push block 443 is slidably arranged at the center position of the annular cutter 435; the outer wall of the fixed section of the lifting cylinder 434 is evenly provided with long holes 438, and an annular groove 439 is opened at the lower end of the circular plate 32. A limiting rod 4310 is slidably installed in the annular groove 439 at a position corresponding to the long hole 438. The end of the limiting rod 4310 close to the T-shaped push block 443 passes through the corresponding long hole 438 and extends to the bottom of the shifting circular plate 442. The limiting rod 4310 slides vertically in the long hole 438. During operation, when the lifting cylinder 434 is extended to drive the annular cutter 435 to move downward, the position of the long hole 438 is moved downward by the extension of the lifting cylinder 434. Due to the multiple limit rods 4310 extending below the stop plate 442, the positions of the stop plate 442 and the T-shaped push block 443 do not change during the downward movement of the lifting section of the lifting cylinder 434, so that the T-shaped push block 443 and the annular cutter 435 slide relative to each other, so that the bottom of the T-shaped push block 443 gradually moves downward. The T-shaped push block 443 automatically slides upwards while the circular cutter 435 is cutting, which will not affect the normal circular cutting effect. After the circular cutting is completed, the circular cutter 435 moves upwards, and the elastic force of the extrusion spring 441 provides a certain supporting force on the T-shaped push block 443, so that the T-shaped push block 443 will not move upward synchronously with the circular cutter 435, thereby realizing the pushing out of the waste inside the circular cutter 435, which is convenient for the circular cutting work again.

[0039] During specific operation, the blank to be cut is placed at the position of the make way hole 21 on the placement plate 2 below the circular ring plate 32, and the cylinder 421 extends to drive the lifting block 422 to move downward. The lifting block 422 moves downward and drives the extrusion block 35, the limiting ring plate 436 and the arc plate 423 to move downward synchronously. When the lifting block 422 drives the extrusion block 35 to slide down in the rectangular through hole, due to the structure of the extrusion block 35, the lifting block 422 drives the bottom extrusion block 35 to slide downward in the rectangular through hole during the downward movement. The inclined surface structure at the bottom of the extrusion block 35 contacts the top of the slide plate 512 when moving downward. The downward pressure of the inclined structure of the lifting block 422 causes the slide plate 512 to move in the sliding groove 511 toward the blank, thereby driving the rubber clamping block 513 to clamp the left and right outer walls of the blank. The cylinder 421 passes through The lifting block 422 drives the limiting ring plate 436 and the arc plate 423 to move downward synchronously, the bending rod and the arc pressure plate 522 on the arc plate 423 press and limit the front and rear side positions of the material blank, the extrusion block 35 clamps and fixes the left and right outer walls of the material blank, and the arc pressure plate 522 limits, presses and fixes the front and rear positions of the material blank, and limits and fixes the material blank in multiple directions, thereby ensuring the stability of the material blank; when the annular cutter 435 moves to contact the material blank, the limiting ring plate 436 also moves down to the specified position, and the annular guide groove 437 on the limiting ring plate 436 contacts the ball 34 on the elastic telescopic rod 33, thereby improving the stability of the annular cutter 435 on the limiting ring plate 436 during operation through the cooperation of multiple spring telescopic rods and the annular guide groove 437, thereby ensuring the ring cutting effect.

[0040] Subsequently, the rotating motor 433 is started, and the rotating motor 433 drives the annular cutter 435 to rotate through the lifting cylinder 434 to perform annular cutting on the middle part of the material embryo. The cylinder 421 cooperates with the rotating motor 433 to gradually move downward while performing rotational cutting. When the lifting cylinder 434 rotates, the limiting ring plate 436 also rotates. Due to the limiting cooperation between the limiting ring plate 436 and the lifting plate, and the cooperation between the limiting ring plate 436 and a plurality of spring telescopic rods, the limiting ring plate 436 is limited in rotation, thereby ensuring the stability of the annular cutter 435 during rotational cutting. As the cutting depth increases, the pressing force of the arc pressure plate 522 and the limiting ring plate 436 also increases, thereby greatly improving the stability of the annular cutting. In the process of the lifting cylinder 434 extending and driving the annular cutter 435 to move downward, the lifting cylinder 434 is extended to make the limiting ring plate 436 rotate. The position of the long hole 438 is moved downward. Due to the multiple limit rods 4310 extended below the stop circular plate 442, the positions of the stop circular plate 442 and the T-shaped push block 443 do not change during the downward movement of the lifting section of the lifting cylinder 434, so that the T-shaped push block 443 and the annular cutter 435 slide relative to each other, so that the bottom of the T-shaped push block 443 gradually approaches the inner top wall of the annular cutter 435. While the annular cutter 435 is cutting, the T-shaped push block 443 automatically slides upward, which will not affect the normal annular cutting effect. After the annular cutting is completed, the annular cutter 435 moves upward, and under the elastic force of the extrusion spring 441, a certain supporting force is exerted on the T-shaped push block 443, so that the T-shaped push block 443 will not move upward synchronously with the annular cutter 435, thereby realizing the pushing out of the waste inside the annular cutter 435, which is convenient for the annular cutting work again.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly conductive fiber grounding ring for a motor for a vehicle, comprising a grounding body (1), characterized in that: An inner ring hole (11) is provided through the middle of the upper end surface of the grounding body (1), and circular holes (12) perpendicular to the axis of the ring body are uniformly provided on the inner ring surface of the grounding body (1) along its circumferential direction, and the circular holes (12) are provided through to the outer ring surface, and a recessed groove (13) is provided at a position corresponding to the upper end surface of the grounding body (1) and the circular hole (12), and a through hole (14) is provided on the upper end surface of the grounding body (1) symmetrically along its diameter line, and the openings of the through hole (14) and the circular hole (12) are both provided with inverted inner fillets; wherein: In the process of opening the inner annular hole (11), a special processing device is required, which comprises a placing plate (2), a supporting assembly (3), a cutting mechanism (4) and a fixing mechanism (5), wherein the upper end surface of the placing plate (2) is provided with the supporting assembly (3), and the middle part of the supporting assembly (3) is provided with the cutting mechanism (4), wherein the cutting mechanism (4) comprises an L-shaped plate (41) symmetrically provided on the supporting assembly (3), a lifting assembly (42) is commonly provided on the lower end surfaces of the horizontal sections of the two L-shaped plates (41), and a ring cutting assembly (43) is commonly provided on the opposite surfaces of the horizontal sections of the two L-shaped plates (41), and a pushing assembly (44) for automatically pushing out the cut waste is provided in the ring cutting assembly (43); The fixing mechanism (5) comprises a pressing and clamping assembly (51) symmetrically arranged below the supporting assembly (3) and a pressing assembly (52) symmetrically installed on the lifting assembly (42). The support assembly (3) comprises an L-shaped support plate (31) symmetrically mounted on the placement plate (2), a circular ring plate (32) being mounted between the L-shaped support plates (31), a clearance hole (21) coaxial with the circular ring plate (32) being opened in the middle of the placement plate (2), elastic telescopic rods (33) being evenly mounted along the outer wall of the upper end of the circular ring plate (32), and balls (34) being rotatably mounted on the telescopic ends of the elastic telescopic rods (33), rectangular through holes being opened on the horizontal sections of the L-shaped support plates (31), extrusion blocks (35) being arranged in the rectangular through holes, and the extrusion blocks (35) being matched with the extrusion clamping assembly (51).

2. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 1, characterized in that: The lifting assembly (42) comprises a cylinder (421) mounted on the lower end surface of the horizontal section of the L-shaped plate (41); the vertical section of the L-shaped plate (41) is mounted on the horizontal section of the L-shaped support plate (31); the telescopic ends of the cylinder (421) are both mounted with lifting blocks (422); the cross section of the lifting blocks (422) is a horizontal U-shaped structure; the front and rear ends of the lifting blocks (422) are both mounted with arc plates (423); the two arc plates (423) are symmetrical front to back.

3. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 2, characterized in that: The annular cutting assembly (43) comprises a connecting plate (431), the connecting plates (431) are installed on the opposite surfaces of the horizontal section of the L-shaped plate (41), a mounting plate (432) is installed between the connecting plates (431), a rotating motor (433) is installed on the mounting plate (432) through a motor seat, the output shaft of the rotating motor (433) is passed through and extends to the bottom of the mounting plate (432), a lifting cylinder (434) is arranged under the mounting plate (432), the lifting cylinder (434) is a telescopic structure, and the output shaft of the rotating motor (433) and the lifting cylinder (434) are in contact with each other. The lifting end of the lifting cylinder (434) is connected to the fixed end thereof, an annular cutter (435) is installed at the lifting end of the lifting cylinder (434), a limiting ring plate (436) is fixedly mounted on the outer wall of the lifting section of the lifting cylinder (434), the thickness of the limiting ring plate (436) near the outer wall is less than the thickness in the middle, the limiting ring plate (436) near the outer wall is slidably connected to the inside of the lifting block (422), an annular guide groove (437) is provided on the lower end surface of the limiting ring plate (436), and the balls (34) on the elastic telescopic rod (33) are all matched with the annular guide groove (437).

4. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 3, characterized in that: The pushing assembly (44) comprises a squeezing spring (441), the squeezing spring (441) is mounted on the inner top end of the fixed section of the lifting cylinder (434), the other end of the squeezing spring (441) is connected to a shifting circular plate (442), a T-shaped pushing block (443) is mounted on the lower end of the shifting circular plate (442), the horizontal section of the T-shaped pushing block (443) is arranged in the annular cutter (435), and the outer wall of the vertical section of the T-shaped pushing block (443) is slidably arranged at the center of the annular cutter (435).

5. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 4, characterized in that: The outer wall of the fixed section of the lifting cylinder (434) is evenly provided with long holes (438), and the lower end of the circular ring plate (32) is provided with an annular groove (439). A limiting rod (4310) is slidably installed in the annular groove (439) at a position corresponding to the long hole (438). One end of the limiting rod (4310) close to the T-shaped push block (443) passes through the corresponding long hole (438) and extends to the bottom of the shifting circular plate (442), and the limiting rod (4310) slides vertically in the long hole (438).

6. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 1, characterized in that: The upper part of the extrusion block (35) is a vertical structure and is slidably connected to the rectangular through hole, and the lower part of the extrusion block (35) is an inclined surface structure that gradually inclines toward one side of the vertical section of the L-shaped support plate (31).

7. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 1, characterized in that: The extrusion clamping assembly (51) comprises a sliding groove (511), the sliding groove (511) being provided on the placement plate (2) below the horizontal section of the L-shaped support plate (31), a sliding plate (512) being slidably arranged in the sliding groove (511), a rubber clamping block (513) being installed on the end surface of the upper part of the sliding plate (512) close to the clearance hole (21), and a lower part of the sliding plate (512) on the end surface away from the clearance hole (21) being connected to the sliding groove (511) via a restoring spring (514).

8. The highly conductive fiber grounding ring for a motor for a vehicle according to claim 2, characterized in that: The pressing assembly (52) comprises a bending rod (521), and a plurality of bending rods (521) are evenly installed at the lower end of the front-to-back symmetrical arc plate (423) along its arc direction, and an arc pressure plate (522) is commonly installed at the lower ends of the plurality of bending rods (521), the vertical section of the bending rod (521) is an elastic telescopic structure, and the cross-section of the arc pressure plate (522) is an L-shaped structure.

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