Tooling fixture for processing double-outlet high-voltage switch explosion-proof outlet box outlet

Abstract

The utility model provides a tool fixture for processing double outlet port high pressure switch explosion -proof outlet box outlet port relates to fixture technical field, including base and positioning assembly, base upside is provided with arc concave surface, base side sets up first fender, positioning assembly can be detachably fixed on the base, the moving direction of positioning assembly relative to base is identical with the axial direction of arc concave surface, positioning assembly includes fixed plate and locating block, locating block rotatable fixed plate side of fixed plate is set up a plurality of key groove positioning hole for adapting the appearance of key groove, key groove positioning hole hole axle is parallel to the axial line of arc concave surface. The utility model provides a tool fixture for processing double outlet port high pressure switch explosion -proof outlet box outlet port, has solved the problem that the first outlet port, second outlet port position exists deviation after the outlet box of prior art processes, the utility model can first outlet port, second outlet port and internal blind hole position fixed.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a tooling fixture for processing the outlet of a double-outlet high-voltage switch explosion-proof outlet box. Background Technology

[0002] In power systems, high-voltage switches, as key control equipment, need to operate stably in dangerous environments such as flammable and explosive environments. Therefore, their matching explosion-proof junction boxes have become one of the core components to ensure equipment safety. Existing explosion-proof junction boxes for dual-outlet high-voltage switches mostly adopt a cylindrical barrel-shaped structure design, such as... Figure 1 As shown, the cylindrical barrel-shaped structure has a first cable outlet 01 and a second cable outlet 02 on opposite sides. The first cable outlet 01 is used to connect to the power supply side cable, and the second cable outlet 02 is used to connect to the load side cable. Both the first cable outlet 01 and the second cable outlet 02 need to be equipped with explosion-proof sealing rings and compression nuts to form an explosion-proof channel for cable entry and exit, ensuring that power lines, control lines, etc. can effectively block the contact between the explosion flame inside the box and the external hazardous environment when they pass through. The bottom of the cylindrical barrel-shaped structure also has several raised keyways 03 integrally formed. Several blind holes are opened above the raised keyways 03. The function of these blind holes is to cooperate with the fixing screws to achieve precise positioning and stable installation of the high-voltage switch body inside the box (by passing the screw through the mounting hole of the high-voltage switch and screwing it into the blind hole, the high-voltage switch can be fixed on the raised keyway), to prevent the high-voltage switch from shifting due to vibration during equipment operation, which could lead to faults such as poor electrical contact. The current industry mainstream still uses the method of first clamping and fixing a cylindrical workpiece (the keyway and blind hole inside this cylindrical workpiece have been machined), and then drilling to machine the first cable outlet 01 and the second cable outlet 02. Finally, using the first cable outlet 01 and the second cable outlet 02 as positioning references, a cable outlet tube is welded to the outer wall of the cylindrical workpiece to connect the first cable outlet 01 and the second cable outlet 02. However, in the existing processing, general-purpose jaws (such as a three-jaw chuck) are usually used to clamp and fix the cylindrical workpiece, and the clamping angle of the jaws is often set arbitrarily, only to ensure that it is clamped tightly and does not loosen. The crude manufacturing process, which disregards the actual positions of the internal raised keyway and blind holes, results in the high-voltage switch being installed and fixed through the blind holes on the raised keyway 03 (in conjunction with the mounting plate). Consequently, the wires entering from the first and second outlets must be forcibly bent or detoured to connect to the high-voltage switch cable interface. This not only significantly increases the difficulty of wire connection but also accelerates insulation aging due to the cables being under constant stress. Furthermore, the detour of the cables occupies space within the box, hindering the operation of disassembly and assembly tools during subsequent maintenance, increasing maintenance time and safety risks.

[0003] When the first and second cable outlets are required to be coaxial with the cable interface of the high-voltage switch fixed by the blind hole, the cable can be easily passed through the first and second cable outlets and connected to the high-voltage switch, and the cable can be prevented from bending due to positional deviation. Utility Model Content

[0004] To address the aforementioned technical problems, the tooling fixture provided by this utility model for processing the outlet of a high-voltage switch explosion-proof outlet box with dual outlets can fix the positions of the first outlet, the second outlet, and the internal blind hole.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a tooling fixture for processing the outlet of a high-voltage switch explosion-proof outlet box with dual outlets, comprising a base and a positioning component; the upper side of the base is provided with an arc-shaped concave surface; the axis of the arc-shaped concave surface is horizontal; a first stop block is provided on the side of the base; the first stop block has a vertically arranged first stop surface; the positioning component is detachably fixed to the base; when the positioning component is fixed to the base, the horizontal distance between the positioning component and the base can be adjusted; the moving direction of the positioning component relative to the base is consistent with the axial direction of the arc-shaped concave surface; the positioning component includes a fixing plate and a positioning block; the positioning block is rotatably fixed to the fixing plate; the positioning block is positioned facing the first stop surface; the side of the positioning block facing away from the fixing plate has a plurality of keyway positioning holes for adapting to the shape of the keyway; the hole axis of the keyway positioning hole is parallel to the axis of the arc-shaped concave surface.

[0006] The tooling fixture provided by this utility model for processing the outlet of a high-voltage switch explosion-proof outlet box with dual outlets preferably includes a central hole and an arc-shaped waist hole on the fixing plate; the positioning block is fixed in the central hole by bolts; the positioning block is a cylindrical structure; the two ends of the positioning block are a contact end and a fixing end, respectively; a cutting area is provided at the contact end along the cylindrical axis of the positioning block, the cutting area forming two mutually perpendicular first positioning planes and second positioning planes; the intersection line of the first positioning plane and the second positioning plane is parallel to the cylindrical axis of the positioning block; the cutting area covers the cylindrical central axis of the positioning block; a keyway positioning hole is provided on the contact end; a slider is provided on the fixing end; the slider can move along the arc length of the arc-shaped waist hole; when the slider moves along the arc length of the arc-shaped waist hole, the rotation angle of the positioning block relative to the fixing plate can be adjusted; when the slider is at both ends of the arc-shaped waist hole, the first positioning plane and the second positioning plane are horizontally upward.

[0007] The tooling fixture provided by this utility model for processing the outlet of the explosion-proof outlet box of a double-outlet high-voltage switch is preferably provided with a plurality of first connecting holes on the surface of the fixing plate; the first connecting hole has a horizontal axis and faces the base; the base has a plurality of threaded connecting holes; bolts can pass through the first connecting holes and be fixed into the threaded connecting holes.

[0008] The tooling fixture provided by this utility model for processing the outlet of a high-voltage switch explosion-proof outlet box with dual outlets is preferably further comprising a first limiting plate; the first limiting plate has a horizontal surface; the fixing plate is fixed on the first limiting plate; the base is provided with a second limiting plate facing away from the positioning component; the second limiting plate has a horizontal surface; and both the first limiting plate and the second limiting plate have a plurality of limiting holes in the vertical direction.

[0009] The above technical solution has the following advantages or beneficial effects: This utility model provides a tooling fixture for processing the outlet of a high-voltage switch explosion-proof outlet box with dual outlets, relating to the field of fixture technology. It includes a base and a positioning component. The base has an arc-shaped concave surface on its upper side. The axis of the arc-shaped concave surface is horizontal. A first stop block is provided on the side of the base. The first stop block has a vertically arranged first stop surface. The positioning component is detachably fixed to the base. When the positioning component is fixed to the base, the horizontal distance between it and the base can be adjusted. The direction of movement of the positioning component relative to the base is consistent with the axial direction of the arc-shaped concave surface. The positioning component includes a fixing plate and a positioning block. The positioning block is rotatably fixed to the fixing plate. The positioning block faces the first stop surface. The side of the positioning block facing away from the fixing plate has several keyway positioning holes for adapting to the shape of the keyway. The axis of the keyway positioning holes is parallel to the axis of the arc-shaped concave surface. The tooling fixture provided by this utility model for processing the outlet of the explosion-proof outlet box of the high-voltage switch with dual outlets solves the problem of large positional deviation between the first outlet, the second outlet and the internal blind hole of the outlet box in the prior art. This utility model can fix the positions of the first outlet, the second outlet and the internal blind hole. Attached Figure Description

[0010] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0011] Figure 1 This is a schematic diagram of the overall structure of the explosion-proof outlet box for high-voltage switches mentioned in the background technology of this utility model.

[0012] Figure 2This is a schematic diagram of the overall structure of the tooling fixture for processing the outlet of the explosion-proof outlet box of the high-voltage switch with dual outlets, provided in Embodiment 1 of this utility model.

[0013] Figure 3 This is a schematic diagram of the keyway positioning hole position structure of the tooling fixture for processing the outlet of the explosion-proof outlet box of the high-voltage switch with dual outlets, provided in Embodiment 1 of this utility model.

[0014] Figure 4 This is a schematic diagram of the tooling fixture provided in Embodiment 1 of this utility model for processing the outlet of the explosion-proof outlet box of a dual-outlet high-voltage switch when processing the first outlet.

[0015] Figure 5 This is a schematic diagram of the tooling fixture provided in Embodiment 1 of this utility model for processing the outlet of the explosion-proof outlet box of a dual-outlet high-voltage switch when processing the second outlet. Detailed Implementation

[0016] Example 1: The tooling fixture provided in Embodiment 1 of this utility model for processing the outlet of a double-outlet high-voltage switch explosion-proof outlet box, such as... Figures 2 to 5 As shown, the system includes a base 1 and a positioning component 2. The upper side of the base 1 has an arc-shaped concave surface 11 with a horizontal axis. A first stop 12 is provided on the side of the base 1, with a vertically arranged first stop surface 121. The positioning component 2 is detachably fixed to the base 1. When the positioning component 2 is fixed to the base 1, the horizontal distance between it and the base 1 can be adjusted. The direction of movement of the positioning component 2 relative to the base 1 is consistent with the axial direction of the arc-shaped concave surface 11. The positioning component 2 includes a fixing plate 21 and a positioning block 22. The positioning block 22 is rotatably fixed to the fixing plate 21. The positioning block 22 faces the first stop surface 121. The side of the positioning block 22 facing away from the fixing plate 21 has several keyway positioning holes 221 for adapting to the shape of the keyway. The axis of the keyway positioning holes 221 is parallel to the axis of the arc-shaped concave surface 11.

[0017] In embodiment 1 of this utility model, the tooling fixture for processing the outlet of a double-outlet high-voltage switch explosion-proof outlet box (hereinafter referred to as the workpiece) has its cylindrical barrel-shaped outer wall engaging with the arc concave surface 11 on the upper side of the base 1 to restrict its axial position. Then, its opening is controlled to face the positioning block 22, so that the protruding keyway of the workpiece is aligned and inserted into the keyway positioning hole 221, thereby restricting the workpiece from rotating around its cylindrical barrel-shaped axis. The bottom of the cylindrical barrel-shaped workpiece abuts against the first stop surface 121 to form a horizontal limit. The positioning block 22 extends into the cylindrical barrel-shaped interior of the workpiece, and its end presses the workpiece against the first stop surface 121, thereby completing the limitation of the workpiece. When processing the first outlet and the second outlet, the position of the keyway positioning hole 221 can be adjusted by rotating the positioning block 22 to adapt to the position of the keyway of the workpiece when processing the first outlet and the second outlet. Compared with the prior art, the structure provided in this embodiment can fix the upward part of the workpiece after it is fixed, because the upward part of the workpiece is the part where the first outlet and the second outlet need to be opened. Under the premise that the keyway positioning hole 221 is fixed, the position of the upward part of the workpiece can be fixed, and the operator can complete the processing of the outlet by vertically milling downward through the CNC center.

[0018] The tooling fixture provided in Embodiment 1 of this utility model for processing the outlet of the explosion-proof outlet box of the high-voltage switch with dual outlets solves the problem of large positional deviation between the first outlet, the second outlet and the internal blind hole of the outlet box in the prior art. This utility model can fix the positions of the first outlet, the second outlet and the internal blind hole.

[0019] To specifically realize the processing of the first and second cable outlets (according to the actual structure of the workpiece, there are two raised keyways 03, which are arranged in a circumferential array at a 90° included angle at the bottom of the cylindrical structure), in this embodiment, the fixing plate 21 is provided with a central hole 211 and an arc-shaped waist hole 212; the positioning block 22 is fixed in the central hole 211 by bolts; (the positioning block 22 can rotate with the hole axis of the central hole 211 as the axis) the positioning block 22 is a cylindrical structure (the cylindrical axis of the positioning block 22 is consistent with the axis of the central hole 211); the two ends of the positioning block 22 are the contact end and the fixing end, respectively; a cutting area is provided at the contact end along the cylindrical axis of the positioning block 22, the cutting area Two mutually perpendicular positioning planes, a first positioning plane 222 and a second positioning plane 223, are formed; the intersection line of the first positioning plane 222 and the second positioning plane 223 is parallel to the cylindrical axis of the positioning block 22; the cut-off area covers the cylindrical central axis of the positioning block 22; a keyway positioning hole 221 is provided on the contact end; a slider 224 is provided on the fixed end; the slider 224 can move along the arc length of the arc-shaped waist hole 212; when the slider 224 moves along the arc length of the arc-shaped waist hole 212, the rotation angle of the positioning block 22 relative to the fixed plate 21 can be adjusted; when the slider 224 is at both ends of the arc-shaped waist hole 212, the first positioning plane 222 and the second positioning plane 223 are horizontally upward respectively. The positioning block 22 is fixed by a central hole bolt and rotates around the axis of the central hole. Simultaneously, the slider 224 at the fixed end moves along the arc length of the arc-shaped waist hole 212, thereby adjusting the rotation angle of the positioning block 22. When machining the outlet (drilling, milling protruding pipes), a large amount of iron filings, metal fragments, and other impurities are generated. The cut-off area is designed to accommodate these impurities and avoid collisions with the machining tool, preventing damage from the tool to the positioning block 22. Operators can switch the positions of the first positioning plane 222 and the second positioning plane 223 by positioning the slider 224 at both ends of the arc-shaped waist hole 212. The first outlet 01 is machined on the first positioning plane 222, and the second outlet 02 is machined on the second positioning plane 223.

[0020] As a specific embodiment, in this embodiment, the fixing plate 21 is further provided with a plurality of first connecting holes 213; the first connecting holes 213 are horizontal and face the base 1; the base 1 is provided with a plurality of threaded connecting holes; bolts can pass through the first connecting holes 213 and be fixed into the threaded connecting holes. In this embodiment, by using bolts to engage in the threaded connecting holes, when the bolts are tightened into the threaded connecting holes, the head of the bolts applies a compressive force to the fixing plate 21 toward the base 1, ensuring a stable connection between the positioning component 2 and the base 1.

[0021] To achieve precise docking between the fixture and the machining center worktable, as a preferred embodiment, the positioning component 2 further includes a first limiting plate 23; the surface of the first limiting plate 23 is horizontal; the fixing plate 21 is fixed on the first limiting plate 23; a second limiting plate 13 is provided on the base 1 facing away from the positioning component; the surface of the second limiting plate 13 is horizontal; and several limiting holes are vertically provided on both the first limiting plate 23 and the second limiting plate 13. The limiting holes on the first limiting plate 23 and the second limiting plate 13 are used to connect with the machining center worktable to ensure accurate fixture positioning.

[0022] In summary, this utility model provides a tooling fixture for processing the outlet of a high-voltage switch explosion-proof outlet box with dual outlets, relating to the field of fixture technology. It includes a base and a positioning component. The base has an arc-shaped concave surface on its upper side. The axis of the arc-shaped concave surface is horizontal. A first stop block is provided on the side of the base. The first stop block has a vertically arranged first stop surface. The positioning component is detachably fixed to the base. When the positioning component is fixed to the base, the horizontal distance between it and the base can be adjusted. The direction of movement of the positioning component relative to the base is consistent with the axial direction of the arc-shaped concave surface. The positioning component includes a fixing plate and a positioning block. The positioning block is rotatably fixed to the fixing plate. The positioning block faces the first stop surface. The side of the positioning block facing away from the fixing plate has several keyway positioning holes for adapting to the shape of the keyway. The axis of the keyway positioning holes is parallel to the axis of the arc-shaped concave surface. The tooling fixture provided by this utility model for processing the outlet of the explosion-proof outlet box of the high-voltage switch with dual outlets solves the problem of large positional deviation between the first outlet, the second outlet and the internal blind hole of the outlet box in the prior art. This utility model can fix the positions of the first outlet, the second outlet and the internal blind hole.

[0023] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A tooling fixture for machining the outlet of a double-outlet high-voltage switch explosion-proof junction box, characterized in that, Includes base and positioning components; The upper side of the base is provided with an arc-shaped concave surface; the axis of the arc-shaped concave surface is horizontal. A first stop is provided on the side of the base; the first stop has a vertically arranged first stop surface; the positioning component is detachably fixed to the base; when the positioning component is fixed to the base, the horizontal distance between the positioning component and the base can be adjusted; the moving direction of the positioning component relative to the base is consistent with the axial direction of the arc concave surface. The positioning component includes a fixing plate and a positioning block; the positioning block is rotatably fixed on the fixing plate; the positioning block is positioned facing the first stop surface; the positioning block has a plurality of keyway positioning holes for adapting to the shape of the keyway on the side facing away from the fixing plate; the axis of the keyway positioning holes is parallel to the axis of the arc concave surface.

2. The tooling fixture for machining the outlet of a double-outlet high-voltage switch explosion-proof outlet box as described in claim 1, characterized in that, The fixing plate has a central hole and an arc-shaped waist hole; the positioning block is fixed in the central hole by bolts; The positioning block has a cylindrical structure; the two ends of the positioning block are a contact end and a fixing end, respectively. A cutting area is provided at the contact end along the cylindrical axis of the positioning block. The cutting area is formed by two mutually perpendicular first positioning planes and second positioning planes. The intersection line of the first positioning plane and the second positioning plane is parallel to the cylindrical axis of the positioning block. The cutting area covers the cylindrical central axis of the positioning block. The contact end is provided with the keyway positioning hole; A slider is provided on the fixed end; the slider can move along the arc length of the arc-shaped waist hole; when the slider moves along the arc length of the arc-shaped waist hole, the rotation angle of the positioning block relative to the fixed plate can be adjusted. When the slider is at both ends of the arc-shaped waist hole, the first positioning plane and the second positioning plane are horizontally upward.

3. The tooling fixture for machining the outlet of a double-outlet high-voltage switch explosion-proof outlet box as described in claim 1, characterized in that, The fixed plate is also provided with a plurality of first connecting holes; the first connecting holes are horizontal and face the base. The base has several threaded connection holes; bolts can pass through the first connection hole and be fixed into the threaded connection hole.

4. The tooling fixture for machining the outlet of a double-outlet high-voltage switch explosion-proof outlet box as described in claim 1, characterized in that, The positioning component further includes a first limiting plate; the surface of the first limiting plate is horizontal; the fixing plate is fixed to the first limiting plate; The base is provided with a second limiting plate facing away from the positioning component; the surface of the second limiting plate is horizontal. Both the first limiting plate and the second limiting plate have several limiting holes in the vertical direction.

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