An auxiliary tool for static contact chamfering

Abstract

The utility model relates to metal parts chamfer technical field especially, it is a kind of auxiliary tool for static contact chamfer, to overcome the technical problem of the way of expansion gap by adopting manpower to push out contact claw one by one in relevant technology, thereby leading to low processing efficiency, time-consuming and laborious and easily damaging contact claw. The auxiliary tool for static contact chamfer includes: inner contact ring, outer contact ring, pedestal and drive assembly. The auxiliary tool for static contact chamfer is wrapped static contact through coaxial setting inner contact ring and outer contact ring, then the radial expansion of the split structure of inner contact ring, contact claw is pressed to outer contact ring, synchronously promotes each contact claw to be inclined outward, thereby realizing the gap increase of adjacent contact claw, processing effect is stable and processing efficiency is high. Overcome the technical problem that the existing contact claw chamfer method exists because of the way of expansion gap by adopting manpower to push out contact claw one by one, thereby leading to low processing efficiency, time-consuming and laborious and easily damaging contact claw.

Description

Technical Field

[0001] This utility model relates to the field of chamfering technology for metal parts, and in particular to an auxiliary tooling for chamfering stationary contacts. Background Technology

[0002] The stationary contact is one of the key components of a switching device. The side wall of the stationary contact has evenly distributed dividing grooves around its own axis, allowing contact claws to form evenly distributed contact claws around its own axis. During manufacturing, the sides of the contact claws need to be chamfered. However, due to the narrow width of the dividing grooves, chamfering is difficult. The current method involves manually pushing each contact claw one by one away from the axis to increase the gap between the contact claws, thus facilitating the chamfering operation. This method is time-consuming, labor-intensive, inefficient, and prone to damaging the contact claws.

[0003] Existing chamfering methods for contact claws suffer from technical problems, such as low processing efficiency, time-consuming and labor-intensive processes, and easy damage to the contact claws, due to the manual method of pushing out each contact claw one by one to expand the gap. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary tooling for chamfering stationary contacts, so as to overcome the technical problems in related technologies that the gap is expanded by manually pushing out the contact claws one by one, resulting in low processing efficiency, time and labor costs, and easy damage to the contact claws.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The auxiliary tooling for chamfering stationary contacts provided by this utility model includes:

[0007] The system comprises an inner contact ring, an outer contact ring, a base, and a drive assembly. The inner and outer contact rings are coaxially mounted on the base. The inner contact ring is configured with a segmented structure. The drive assembly is dynamically connected to the inner contact ring and drives it to switch from a contracted state to an expanded state, thereby causing the segmented structure to expand radially. A stationary contact is disposed in the annular space formed between the inner and outer contact rings. The radial expansion of the inner contact ring presses the contact claws of the stationary contact against the outer contact ring, thereby increasing the gap between adjacent contact claws.

[0008] Specifically, the driving assembly includes a driving disk with a guide groove, which is spiral-shaped. The inner contact ring includes multiple segmented sliders evenly distributed around the axis of the stationary contact. The segmented sliders are disposed inside the stationary contact and slidably connected to the base. Each segmented slider is provided with a guide post, which is inserted into the guide groove. The rotation of the driving disk around its own axis drives the guide post to slide along the guide groove, thereby driving the segmented sliders to move radially along the stationary contact, thus completing the extrusion and tilting shaping of the stationary contact.

[0009] Specifically, the segmented slider includes a first slider and a second slider, which are alternately arranged to form a ring. The guide groove includes a first groove and a second groove, with the guide post of the first slider inserted into the first groove and the guide post of the second slider inserted into the second groove. When the drive disk rotates, the sliding speed of the first slider is greater than that of the second slider, and the sliding stroke of the first slider is greater than that of the second slider. In the retracted state, the first slider and the second slider slide towards the axis of the stationary contact and form two concentric rings.

[0010] Specifically, both the first slider and the second slider are fan-shaped. The included angle between the two sides of the fan-shaped first slider is away from the center direction, while the included angle between the two sides of the fan-shaped second slider is towards the center direction. The contact surfaces of the first slider and the second slider are matched.

[0011] Specifically, the first slider has a recess to prevent interference between the first and second sliders during sliding. The second slider has a flange that matches the shape of the recess to ensure the shape integrity of the inner contact ring in the expanded state.

[0012] Specifically, the drive assembly includes a first drive unit, which comprises the drive disk, a first motor, and a drive shaft. The first motor is mounted on the base, and the drive shaft and the drive disk are sequentially mounted on the output end of the first motor. The drive disk and the base are respectively disposed at both ends of the inner contact ring. The first motor drives the drive disk to rotate around its own axis, thereby causing the inner contact ring to switch between an expanded state and a contracted state.

[0013] Specifically, the outer contact ring includes a first segment and a second segment. The drive assembly further includes a second drive unit, which includes a drive rack and a drive gear ring. The two drive racks are respectively mounted on the first segment and the second segment, and simultaneously mesh with the drive gear ring. The drive gear ring is rotatably mounted on the base, and the rotation of the drive gear ring is used to drive the first segment and the second segment to move towards or away from each other through meshing with the drive racks, thereby releasing the stationary contact.

[0014] Specifically, the second drive unit further includes a second motor and a drive gear. The second motor is mounted on the base, and the drive gear is mounted on the output shaft of the second motor and meshes with the drive gear ring. The rotation of the drive gear ring drives the first segment and the second segment to rotate, thereby causing them to move towards or away from each other through meshing with the drive gear ring.

[0015] Specifically, the base has radially extending sliding grooves, and the same number of sliding grooves as the segmented sliders are evenly distributed around the axis of the base. Each segmented slider is equipped with a sliding guide key, which is inserted into the sliding groove. When the drive disc rotates around its own axis, causing the guide post to slide along the guide groove, the sliding guide key slides along the sliding groove, preventing the segmented sliders from deflecting around the axis of the guide post, thereby ensuring that each segmented slider can move radially along the stationary contact under the drive of the drive disc.

[0016] Specifically, the number of the segmented sliders is greater than or equal to the number of the contact claws of the stationary contact.

[0017] Based on the above technical solutions, the beneficial effects of this utility model are analyzed as follows:

[0018] This utility model provides an auxiliary tooling for chamfering stationary contacts, comprising:

[0019] The system comprises an inner contact ring, an outer contact ring, a base, and a drive assembly. The inner and outer contact rings are coaxially mounted on the base. The inner contact ring is configured with a segmented structure. The drive assembly is dynamically connected to the inner contact ring and drives it to switch from a contracted state to an expanded state, thereby causing the segmented structure to expand radially. A stationary contact is disposed in the annular space formed between the inner and outer contact rings. The radial expansion of the inner contact ring presses the contact claws of the stationary contact against the outer contact ring, thereby increasing the gap between adjacent contact claws.

[0020] In practical applications, the stationary contact is installed in the annular region between the inner and outer contact rings, with a gap between the contact claws and the outer contact ring. The drive assembly drives the segmented structure of the inner contact ring to expand radially, compressing the stationary contact. Each contact claw is pressed against the inner wall of the outer contact ring by the expanded inner contact ring. At this point, the gap between the contact claws and the outer contact ring disappears, and each contact claw tilts outwards synchronously, increasing the gap between adjacent contact claws.

[0021] As can be seen, compared with the prior art, this auxiliary tooling for chamfering stationary contacts wraps the stationary contact with the coaxially arranged inner and outer contact rings. Then, through the radial expansion of the split structure of the inner contact ring, the contact claws are pressed against the outer contact ring, simultaneously pushing each contact claw outwards. This increases the gap between adjacent contact claws, resulting in stable processing and high processing efficiency. It overcomes the technical problems of existing contact claw chamfering methods, which rely on manual pushing of each contact claw to expand the gap, leading to low processing efficiency, time-consuming and labor-intensive processes, and easy damage to the contact claws. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the initial state of the auxiliary tooling for chamfering stationary contacts provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the initial sectioning structure of the auxiliary tooling used for chamfering the stationary contact. Figure 1 ;

[0025] Figure 3 This is a cross-sectional view of the auxiliary tooling used for chamfering the stationary contact when the inner contact ring is in a retracted state.

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the auxiliary tooling used for chamfering the stationary contact when the inner contact ring is in an expanded state;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the auxiliary tooling used for chamfering the stationary contact during part removal;

[0028] Figure 6This is a schematic diagram of the initial sectioning structure of the auxiliary tooling used for chamfering the stationary contact. Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the initial sectioning structure of the auxiliary tooling used for chamfering the stationary contact. Figure 3 ;

[0030] Figure 8 This is a schematic diagram of the inner contact ring in its expanded state;

[0031] Figure 9 This is a schematic diagram of the inner contact ring in the contracted state.

[0032] Figure 10 This is a schematic diagram of the first slider.

[0033] icon:

[0034] 001. Stationary contact;

[0035] 100. Inner contact ring; 110. Split slider; 101. Guide post; 104. Sliding guide key; 111. First slider; 102. Recess; 112. Second slider; 103. Flange;

[0036] 200. Outer contact ring; 210. First segment; 220. Second segment;

[0037] 300, base; 301, sliding groove;

[0038] 400, Drive assembly; 410, First drive unit; 411, Drive disk; 401, First slide groove; 402, Second slide groove; 412, First motor; 413, Drive shaft; 420, Second drive unit; 421, Drive rack; 422, Drive gear ring; 423, Second motor; 424, Drive gear. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0041] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0042] Existing chamfering methods for contact claws suffer from technical problems, such as low processing efficiency, time-consuming and labor-intensive processes, and easy damage to the contact claws, due to the manual method of pushing out each contact claw one by one to expand the gap.

[0043] In view of this, the present invention provides an auxiliary tooling for chamfering stationary contacts, comprising:

[0044] The system comprises an inner contact ring 100, an outer contact ring 200, a base 300, and a drive assembly 400. The inner contact ring 100 and the outer contact ring 200 are coaxially mounted on the base 300. The inner contact ring 100 is configured with a segmented structure. The drive assembly 400 is dynamically connected to the inner contact ring 100 and is used to drive the inner contact ring 100 from a contracted state to an expanded state, thereby causing the segmented structure to expand radially. A stationary contact 001 is disposed in the annular space formed between the inner contact ring 100 and the outer contact ring 200. The radial expansion of the inner contact ring 100 is used to press the contact claws of the stationary contact 001 against the outer contact ring 200, thereby increasing the gap between adjacent contact claws.

[0045] In summary, the auxiliary tooling for chamfering stationary contacts provided by this utility model can achieve the following technical effects:

[0046] The auxiliary fixture for chamfering stationary contacts uses an inner contact ring 100 and an outer contact ring 200 arranged coaxially to enclose the stationary contact 001. The radial expansion of the split structure of the inner contact ring 100 presses the contact claws against the outer contact ring 200, simultaneously pushing each contact claw outwards. This increases the gap between adjacent contact claws, resulting in stable processing and high efficiency. It overcomes the technical problems of existing contact claw chamfering methods, which rely on manual pushing of each contact claw to expand the gap, leading to low processing efficiency, time-consuming and labor-intensive processes, and easy damage to the contact claws.

[0047] The following combination Figures 1 to 10 The structure and shape of the auxiliary tooling for chamfering stationary contacts provided in this embodiment are described in detail below:

[0048] Specifically, regarding how the drive assembly 400 causes the inner contact ring 100 to switch from a contracted state to an expanded state:

[0049] The drive assembly 400 includes a drive disk 411 with a guide groove, which is spiral-shaped. The inner contact ring 100 includes multiple segmented sliders 110 evenly distributed around the axis of the stationary contact 001. The segmented sliders 110 are disposed inside the stationary contact 001 and slidably connected to the base 300. Each segmented slider 110 is provided with a guide post 101, which is inserted into the guide groove. The rotation of the drive disk 411 around its own axis drives the guide post 101 to slide along the guide groove, thereby driving the segmented sliders 110 to move radially along the stationary contact 001. The outer walls of each segmented slider 110 are sequentially spliced ​​to form a tight, gapless working extrusion surface. Each contact claw is pushed towards the outer contact ring 200 by the working extrusion surface and generates an inclination angle away from the axis, thereby completing the extrusion and tilting shaping of the stationary contact 001.

[0050] Specifically, regarding the composition of the segmented slider 110:

[0051] The segmented slider 110 includes a first slider 111 and a second slider 112, which are alternately arranged to form a ring. The guide groove includes a first slide groove 401 and a second slide groove 402. The guide post 101 of the first slider 111 is inserted into the first slide groove 401, and the guide post 101 of the second slider 112 is inserted into the second slide groove 402. When the drive disk 411 rotates, the sliding speed of the first slider 111 is greater than the sliding speed of the second slider 112, and the sliding stroke of the first slider 111 is greater than the sliding stroke of the second slider 112. In the expanded state, the outer walls of the first slider 111 and the second slider 112 are sequentially joined to form a working extrusion surface. In the contracted state, the first slider 111 and the second slider 112 slide towards the axis of the stationary contact 001 and form two concentric rings. The ring formed by the first slider 111 is closer to the axis.

[0052] Regarding how the first slider 111 and the second slider 112 slide towards the axis respectively without conflict or interference, specifically:

[0053] In this embodiment, both the first slider 111 and the second slider 112 are fan-shaped. The included angle between the two sides of the fan-shaped first slider 111 is away from the center direction, while the included angle between the two sides of the fan-shaped second slider 112 is towards the center direction. The contact surfaces of the first slider 111 and the second slider 112 are matched. In the expanded state, the inner contact ring 100 forms a gapless annular shape.

[0054] To further eliminate interference between the first slider 111 and the second slider 112 during the sliding process, in this embodiment, the first slider 111 is provided with a recess 102 to avoid interference between the first slider 111 and the second slider 112 during the sliding process. The second slider 112 is provided with a flange 103 that matches the shape of the recess 102 to ensure the shape integrity of the inner contact ring 100 in the expanded state, i.e., a gapless annular shape. The shape adjustment of the recess 102 and the flange 103 allows the first slider 111 and the second slider 112 to stack in the contracted state of the inner contact ring 100, thereby improving space utilization. It also reduces the requirements for the difference in sliding speed and sliding stroke between the first slider 111 and the second slider 112.

[0055] Regarding the structural composition of the driver component 400, specifically:

[0056] In this embodiment, the drive assembly 400 includes a first drive unit 410, which includes a drive disk 411, a first motor 412, and a drive shaft 413. The first motor 412 is mounted on the base 300, and the drive shaft 413 and drive disk 411 are sequentially mounted on the output end of the first motor 412. The drive disk 411 and the base 300 are respectively located at both ends of the inner contact ring 100. The first motor 412 drives the drive disk 411 to rotate around its own axis, thereby causing the inner contact ring 100 to switch between an expanded state and a contracted state.

[0057] Regarding how the expanded stationary contact 001 avoids interference with the outer contact ring 200 during removal, specifically:

[0058] The outer contact ring 200 includes a first segment 210 and a second segment 220. The drive assembly 400 also includes a second drive unit 420, which includes a drive rack 421 and a drive gear ring 422. The two drive racks 421 are respectively mounted on the first segment 210 and the second segment 220, and simultaneously mesh with the drive gear ring 422. The drive gear ring 422 is rotatably mounted on the base 300. The rotation of the drive gear ring 422 is used to drive the first segment 210 and the second segment 220 to move towards or away from each other through meshing with the drive rack 421, thereby releasing the stationary contact 001.

[0059] In this embodiment, the second drive unit 420 further includes a second motor 423 and a drive gear 424. The second motor 423 is mounted on the base 300, and the drive gear 424 is mounted on the output shaft of the second motor 423 and meshes with the drive gear ring 422. The rotation of the drive gear ring 422 drives the first segment 210 and the second segment 220 to move towards or away from each other through meshing with the drive gear ring 422.

[0060] Specifically, regarding how each segmented slider 110 avoids deflection around the axis of the guide post 101:

[0061] The base 300 has radially extending sliding grooves 301, and the same number of sliding grooves 301 as the segmented sliders 110 are evenly distributed around the axis of the base 300. The segmented sliders 110 are provided with sliding guide keys 104, which are inserted into the sliding grooves 301. When the drive disk 411 rotates around its own axis and drives the guide post 101 to slide along the guide groove, the sliding guide key 104 slides along the sliding groove 301 to prevent the segmented sliders 110 from deflecting around the axis of the guide post 101, thereby ensuring that each segmented slider 110 can move radially along the stationary contact 001 under the drive of the drive disk 411.

[0062] In an optional embodiment, the sliding guide key 104 is configured as a rectangular protrusion, which is inserted into and slides in the sliding groove 301.

[0063] In an optional embodiment, the sliding guide key 104 is configured as two parallel cylinders, which are simultaneously inserted into and slide in the sliding groove 301.

[0064] To ensure uniform force distribution among the contact claws, in this embodiment, the number of segmented sliders 110 is greater than or equal to the number of contact claws of the stationary contact 001.

[0065] In summary, the specific working process of the auxiliary tooling for chamfering stationary contacts provided in this embodiment is as follows:

[0066] Taking the initial state of the outer contact ring 200 as an example, where the first segment 210 and the second segment 220 are far apart, and the initial state of the inner contact ring 100 is a contracted state.

[0067] The stationary contact 001 is fitted onto the retracted inner contact ring 100 and abuts against the base 300. The second drive unit 420 drives the first segment 210 and the second segment 220 to move towards each other and close to wrap around the stationary contact 001. At this time, there is a gap between the contact claw and the outer contact ring 200.

[0068] The first drive unit 410 drives the drive disk 411 to rotate, thereby switching the inner contact ring 100 from a contracted state to an expanded state. The guide posts 101 of the first slider 111 and the second slider 112 slide along the first slide groove 401 and the second slide groove 402, respectively, and the sliding guide keys 104 of the first slider 111 and the second slider 112 slide along the sliding groove 301 of the base 300, respectively. The two concentric rings formed by the first slider 111 and the second slider 112 move radially outward towards the stationary contact 001, and press each contact claw against the inner wall surface enclosed by the first segment 210 and the second segment 220. The contact claws deflect away from the axis, thereby widening the gap between adjacent contact claws.

[0069] The first drive unit 410 drives the drive disk 411 to rotate in the opposite direction, thereby switching the inner contact ring 100 from the expanded state to the contracted state. The second drive unit 420 drives the first segment 210 and the second segment 220 to move in opposite directions and disengage from the stationary contact 001. The expanded stationary contact 001 is then removed for the next chamfering process.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary tooling for chamfering stationary contacts, characterized in that, include: The inner contact ring (100), the outer contact ring (200), the base (300), and the drive assembly (400) are coaxially mounted on the base (300). The inner contact ring (100) is configured as a segmented structure, and the driving component (400) is poweredly connected to the inner contact ring (100) to drive the inner contact ring (100) from a contracted state to an expanded state, thereby causing the segmented structure to expand radially; The stationary contact (001) is disposed in the annular space formed between the inner contact ring (100) and the outer contact ring (200); The radial expansion of the inner contact ring (100) is used to press the contact claws of the stationary contact (001) against the outer contact ring (200), thereby increasing the gap between adjacent contact claws.

2. The auxiliary tooling for chamfering stationary contacts according to claim 1, characterized in that: The drive assembly (400) includes a drive disk (411), the drive disk (411) having a guide groove, the guide groove being spiral-shaped; The inner contact ring (100) includes a plurality of segmented sliders (110) evenly distributed around the axis of the stationary contact (001). The segmented sliders (110) are disposed inside the stationary contact (001) and slidably connected to the base (300). The split slider (110) is provided with a guide post (101), which is inserted into the guide groove; The rotation of the drive disk (411) around its own axis is used to drive the guide post (101) to slide along the guide groove, thereby driving the split slider (110) to move radially along the stationary contact (001), and thus completing the extrusion and tilting forming of the stationary contact (001).

3. The auxiliary tooling for chamfering stationary contacts according to claim 2, characterized in that: The segmented slider (110) includes a first slider (111) and a second slider (112), wherein the first slider (111) and the second slider (112) are arranged alternately to form a ring; The guide groove includes a first slide groove (401) and a second slide groove (402). The guide post (101) of the first slider (111) is inserted into the first slide groove (401), and the guide post (101) of the second slider (112) is inserted into the second slide groove (402). When the drive disk (411) rotates, the sliding speed of the first slider (111) is greater than the sliding speed of the second slider (112), and the sliding stroke of the first slider (111) is greater than the sliding stroke of the second slider (112). In the contracted state, the first slider (111) and the second slider (112) slide toward the axis of the stationary contact (001) and form two concentric rings.

4. The auxiliary tooling for chamfering stationary contacts according to claim 3, characterized in that: Both the first slider (111) and the second slider (112) are fan-shaped. The included angle between the two sides of the fan-shaped first slider (111) is away from the center direction, while the included angle between the two sides of the fan-shaped second slider (112) is towards the center direction. The contact surfaces of the first slider (111) and the second slider (112) are matched.

5. The auxiliary tooling for chamfering stationary contacts according to claim 4, characterized in that: The first slider (111) is provided with an indentation (102) to avoid interference between the first slider (111) and the second slider (112) during the sliding process; The second slider (112) is provided with a flange (103) that matches the shape of the recess (102) to ensure the shape integrity of the inner contact ring (100) in the expanded state.

6. The auxiliary tooling for chamfering stationary contacts according to claim 2, characterized in that: The drive assembly (400) includes a first drive unit (410), which includes the drive disk (411), a first motor (412), and a drive shaft (413). The first motor (412) is mounted on the base (300), and the drive shaft (413) and the drive disk (411) are sequentially mounted on the output end of the first motor (412); The drive disk (411) and the base (300) are respectively disposed at both ends of the inner contact ring (100); The first motor (412) is used to drive the drive disk (411) to rotate around its own axis, thereby driving the inner contact ring (100) to switch between an expanded state and a contracted state.

7. The auxiliary tooling for chamfering stationary contacts according to claim 1, characterized in that: The outer contact ring (200) includes a first segment (210) and a second segment (220); The drive assembly (400) also includes a second drive unit (420), which includes a drive rack (421) and a drive ring (422). The two drive racks (421) are respectively installed on the first segment (210) and the second segment (220), and simultaneously mesh with the drive gear ring (422); The drive gear ring (422) is rotatably mounted on the base (300). The rotation of the drive gear ring (422) is used to drive the first segment (210) and the second segment (220) to move towards or away from each other by meshing with the drive rack (421), thereby releasing the stationary contact (001).

8. The auxiliary tooling for chamfering stationary contacts according to claim 7, characterized in that: The second drive unit (420) also includes a second motor (423) and a drive gear (424). The second motor (423) is mounted on the base (300), and the drive gear (424) is mounted on the output shaft of the second motor (423) and meshes with the drive gear ring (422); The rotation of the drive gear ring (422) is used to drive the drive gear ring (422) to rotate, thereby driving the first segment (210) and the second segment (220) to move towards or away from each other through meshing with the drive gear ring (422).

9. The auxiliary tooling for chamfering stationary contacts according to claim 2, characterized in that: The base (300) has radially extending sliding grooves (301), and the same number of sliding grooves (301) as the split slider (110) are evenly distributed around the axis of the base (300). The split slider (110) is provided with a sliding guide key (104), which is inserted into the sliding groove (301). When the drive disk (411) rotates around its own axis and drives the guide post (101) to slide along the guide groove, the sliding guide key (104) slides along the sliding groove (301) to prevent each of the segmented sliders (110) from deflecting around the axis of the guide post (101), thereby ensuring that each of the segmented sliders (110) can move radially along the stationary contact (001) under the drive of the drive disk (411).

10. The auxiliary tooling for chamfering stationary contacts according to claim 2, characterized in that: The number of the segmented sliders (110) is greater than or equal to the number of the contact claws of the stationary contact (001).

Images