Combined guide sleeve matching inspection die

Abstract

The utility model discloses a combined guide sleeve matching inspection die, which comprises a base and a core, the base is cylindrical, the upper part of the base is provided with a counter bore, the center of the counter bore is provided with a through hole, the inner wall of the through hole is provided with two axisymmetric positioning keys, and the upper surface of the base is uniformly provided with four positioning bumps around the central axis. Wherein the center lines of the two opposite positioning protruding blocks and the center lines and the axes of the two positioning keys are located on the same plane, the core is a cylinder and connected into the through hole, positioning grooves matched with the positioning keys are formed in the two sides of the core, and the height of the core is larger than the depth of the through hole. According to the utility model, whether the alignment relationship of the key / groove of the guide sleeve is qualified can be detected efficiently and accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a combined guide sleeve matching and inspection die. Background Art

[0002] The main components of the vacuum interrupter include an insulating housing, movable and static cover plates, movable and static contacts, bellows, shielding cover, movable and static conductive rods, and guide sleeves. The guide sleeve, mounted on the movable conductive rod, guides its movement and ensures the coaxiality of the movable and static ends of the vacuum interrupter during operation, thereby ensuring the contact area between the movable and static contacts. Furthermore, to prevent the movable contact from rotating under torque during installation of the guide sleeve and damaging the bellows, symmetrical double keys are provided on the inner wall of the guide sleeve, and symmetrical double grooves are provided on the circumference of the conductive rod. The double keys on the inner wall of the guide sleeve cooperate with the double grooves on the circumference of the conductive rod to prevent rotation. A retaining ring with four flaps is welded to the movable cover plate of the interrupter to secure and limit the guide sleeve. Four slots are located on the outer bottom of the guide sleeve, which accept the four flaps. Together, the retaining ring, guide sleeve, and movable conductive rod form an anti-torsion system that prevents the movable contact from rotating.

[0003] During installation, the retaining ring's claws and the grooves of the movable conductive rod must be aligned. Therefore, to ensure quality installation, the centerlines of the two opposing grooves on the outer bottom edge of the guide sleeve, the centerlines of the two keys on the inner wall of the guide sleeve, and the axis of the guide sleeve must be aligned. Due to the lack of specialized inspection tooling, inspectors rely on visual inspection to determine compliance. They hold the guide sleeve horizontally at eye level, facing the lower end of the sleeve, and observe whether the keys and grooves conform to the aforementioned alignment. This process is highly subjective and hinders quality control of the guide sleeve. Utility Model Content

[0004] In order to solve the above-mentioned defects of the prior art, the utility model provides a combined guide sleeve matching and inspection mold, which can efficiently and accurately inspect whether the key / slot alignment relationship of the guide sleeve is qualified.

[0005] In order to achieve the above technical purpose, the technical solution adopted by this utility model is:

[0006] A combined guide sleeve fitting and inspection mold includes a base and a core. The base is cylindrical and has a countersunk hole on the upper part. There is a through hole in the center of the countersunk hole. Two axially symmetrical positioning keys are provided on the inner wall of the through hole. Four positioning protrusions are evenly provided on the upper surface of the base around the central axis, wherein the center lines of two opposite positioning protrusions are in the same plane as the center lines and axes of the two positioning keys. The core is a cylinder connected in the through hole, with positioning grooves adapted to the positioning keys on both sides. The height of the core is greater than the depth of the through hole.

[0007] Furthermore, the diameter of the core is adapted to the inner diameter of the guide sleeve, and the key on the inner wall of the guide sleeve is adapted to the positioning groove of the core.

[0008] Furthermore, the inner diameter of the countersunk hole is larger than the outer diameter of the guide sleeve.

[0009] Furthermore, the four positioning protrusions are adapted to the four grooves at the bottom of the outer edge of the guide sleeve.

[0010] Furthermore, the distance from the lower surface of the outer edge of the guide sleeve to the lower surface of the guide sleeve is greater than the distance from the upper surface of the core to the upper surface of the base.

[0011] Furthermore, the height of the core is greater than the height of the base.

[0012] Furthermore, the core is detachably connected to the through hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model can efficiently and accurately check whether the key / slot alignment relationship of the guide sleeve is qualified. The mold adopts a combined structure, the single-body structure is simpler, the processing is more convenient, and it is convenient for daily cleaning and maintenance of the mold. The utility model is simple to operate, has low skill requirements for personnel, and has high inspection efficiency. Without visual inspection, the inspection results are more objective and accurate, which is more conducive to quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the mold disassembly of the present utility model;

[0017] Figure 2 This is a schematic diagram of the mold assembly and guide sleeve of the utility model;

[0018] Figure 3 This is a schematic diagram of using the utility model to inspect the guide sleeve;

[0019] In the figure: 1-base, 2-core, 3-through hole, 4-counterbore, 5-positioning key, 6-positioning protrusion, 7-positioning groove, 8-guide sleeve, 9-outer edge of guide sleeve, 10-groove, 11-key. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] In the description of the embodiments of the present application, it should be noted that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0022] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] like Figure 1-2 As shown, a combined guide sleeve fitting and inspection mold includes a base 1 and a core 2. The base 1 is cylindrical and has a countersunk hole 4 on the upper part. There is a through hole 3 in the center of the countersunk hole 4. The inner wall of the through hole 3 is provided with two axially symmetrical positioning keys 5. Four positioning protrusions 6 are evenly provided on the upper surface of the base 1 around the central axis, wherein the center lines of the two opposite positioning protrusions 6 are in the same plane as the center lines and axes of the two positioning keys 5. The core 2 is a cylinder connected in the through hole 3, and has positioning grooves 7 on both sides adapted to the positioning keys 5. The height of the core 2 is greater than the depth of the through hole 3.

[0024] The diameter of the core 2 is adapted to the inner diameter of the guide sleeve 8, the key 11 on the inner wall of the guide sleeve 8 is adapted to the positioning groove 7 of the core 2, the inner diameter of the countersunk hole 4 is larger than the outer diameter of the guide sleeve 8, the distance from the lower surface of the outer edge 9 of the guide sleeve to the lower surface of the guide sleeve 8 is greater than the distance from the upper surface of the core 2 to the upper surface of the base 1, and the four positioning protrusions 6 are adapted to the four grooves 10 at the bottom of the outer edge of the guide sleeve 8.

[0025] Check the operation of the guide sleeve 8 as follows Figure 2-3As shown, first assemble the base 1 and the core 2, then align the key 11 of the guide sleeve 8 with the positioning groove 7 of the core 2 and insert it into the countersunk hole 4. The guide sleeve 8 is mounted on the core 2, and check whether the groove 10 at the bottom of the outer edge 9 of the guide sleeve is adapted to the positioning protrusion 6 on the base 1. If it can be installed in place, it means that the guide sleeve 8 meets the design requirements, otherwise it does not meet the requirements.

[0026] Preferably, the height of the core 2 is greater than the height of the base 1 .

[0027] The mold of the utility model adopts a combined structure, the single structure is simpler, the processing is more convenient, and it is also convenient for daily cleaning and maintenance of the mold; the utility model is simple to operate, has low skill requirements for personnel, and has high inspection efficiency; no visual inspection is required, the inspection results are more objective and accurate, and it is more conducive to quality control.

[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A combined guide sleeve inspection mold, characterized by: The invention comprises a base (1) and a core (2), wherein the base (1) is cylindrical and has a countersunk hole (4) on the upper part, a through hole (3) at the center of the countersunk hole (4), two axisymmetric positioning keys (5) are provided on the inner wall of the through hole (3), four positioning protrusions (6) are evenly provided on the upper surface of the base (1) around the central axis, wherein the center lines of two opposite positioning protrusions (6) are in the same plane as the center lines and axes of the two positioning keys (5), the core (2) is cylindrical and connected in the through hole (3), and positioning grooves (7) adapted to the positioning keys (5) are provided on both sides, and the height of the core (2) is greater than the depth of the through hole (3).

2. The combined guide sleeve assembly and inspection mold according to claim 1, characterized in that: The diameter of the core (2) is adapted to the inner diameter of the guide sleeve (8), and the key (11) on the inner wall of the guide sleeve (8) is adapted to the positioning groove (7) of the core (2).

3. The combined guide sleeve assembly and inspection mold according to claim 1, characterized in that: The inner diameter of the countersunk hole (4) is larger than the outer diameter of the guide sleeve (8).

4. The combined guide sleeve assembly and inspection mold according to claim 1, characterized in that: The four positioning protrusions (6) are adapted to the four grooves (10) at the bottom of the outer edge (9) of the guide sleeve.

5. The combined guide sleeve assembly and inspection mold according to claim 4, characterized in that: The distance from the lower surface of the outer edge (9) of the guide sleeve to the lower surface of the guide sleeve (8) is greater than the distance from the upper surface of the core (2) to the upper surface of the base (1).

6. The combined guide sleeve assembly and inspection mold according to claim 1, characterized in that: The height of the core (2) is greater than the height of the base (1).

7. The combined guide sleeve assembly and inspection mold according to claim 1, characterized in that: The core (2) is detachably connected in the through hole (3).

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