Supersonic spraying positioning machining tool for V-shaped valve element

Abstract

The utility model relates to a V-shaped valve core supersonic spraying positioning machining tool which comprises a rotating mandrel, a pair of fixing discs are installed on the rotating mandrel in a spaced mode, L-shaped installation seats are arranged on the peripheral faces of the fixing discs in the circumferential direction, and the horizontal portions of the installation seats are fixed to the peripheral faces of the fixing discs. The inner side face of the outer end of the V-shaped valve element abuts against the inner side face of the vertical portion of the installation base, the vertical portion of the installation base is provided with a through hole, a positioning shaft penetrates through a shaft hole in the outer end of the V-shaped valve element from the through hole to a spline hole in the inner end of the V-shaped valve element, and the end of the inner side of the positioning shaft is connected with a compression nut compressed on the outer side face of the inner end of the V-shaped valve element. After one-time clamping and alignment, a plurality of V-shaped valve cores can be sprayed at one time, so that the spraying cost is reduced, the spraying efficiency is improved, and batch production can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying, in particular to a supersonic spraying positioning and processing tooling for a V-shaped valve core. Background Art

[0002] The eccentric rotary control valve is applied to various occasions that require precise control of the flow rate of gas or liquid to adjust parameters such as temperature, pressure and flow rate in the production process.

[0003] In order to achieve precise control of the flow rate, the surface of the V-shaped valve core of the eccentric rotary valve is required to be specially hardened to ensure the use accuracy of the valve core, and supersonic spraying is one of the main ways of surface hardening.

[0004] In the traditional supersonic spraying tooling, the support sleeve is installed on the main shaft, the valve core is positioned and installed on the support sleeve, and the main shaft is driven to rotate by the driving mechanism, so that the valve core rotates. However, this spraying tooling can only carry out single-piece and small-batch spraying processing. During the spraying process, the back of the valve core needs to be sprayed for protection, and the efficiency is low, which cannot meet the requirements of mass production. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a supersonic spraying positioning and processing tooling for a V-shaped valve core to realize the spraying processing of multiple valve cores in one clamping and improve the spraying efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problem is: a supersonic spraying positioning and processing tooling for a V-shaped valve core, including a rotating core shaft, a pair of fixed disks are installed on the rotating core shaft at a distance. The outer circumferential surface of the fixed disk is circumferentially and evenly provided with L-shaped mounting seats. The horizontal part of the mounting seat is fixed to the outer circumferential surface of the fixed disk. The inner side surface of the outer end of the V-shaped valve core abuts against the inner side surface of the vertical part of the mounting seat. The vertical part of the mounting seat has a through hole. A positioning shaft is inserted through the shaft hole at the outer end of the V-shaped valve core and the through hole into the spline hole at the inner end of the V-shaped valve core. The inner end of the positioning shaft is connected with a compression nut that presses against the outer side surface of the inner end of the V-shaped valve core.

[0007] Specifically, the outer circumferential surface of the fixed disk has eight circumferentially evenly distributed planes, screw holes are opened on the planes, and the horizontal part of the mounting seat is fixed to the plane through fixing bolts.

[0008] Furthermore, in order to prevent the positioning shaft from rotating, the outer end of the positioning shaft has a limiting block, a limiting groove is opened on the outer circumferential surface of the positioning block, and a limiting rib matched with the limiting groove is arranged on the surface of the horizontal part of the mounting seat.

[0009] Furthermore, the inner end of the positioning shaft has an external thread matched with the compression nut, and a spline section matched with the spline hole at the inner end of the V-shaped valve core is arranged on the positioning shaft inside the external thread.

[0010] Preferably, the rotating mandrel and the fixed disk are connected by a flat key.

[0011] The beneficial effects of the present utility model are as follows: after the present utility model is clamped and aligned once, multiple V-shaped valve cores can be sprayed at one time, reducing the spraying cost, improving the spraying efficiency, and realizing mass production. Description of the Drawings

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1 is a schematic structural view of the V-shaped valve core of the present utility model.

[0014] Figure 2 is a schematic structural view of the present utility model.

[0015] Figure 3 is a schematic structural view of the fixed disk of the present utility model.

[0016] Figure 4 is a schematic structural view of the mounting seat of the present utility model.

[0017] Figure 5 is a schematic structural view of the positioning shaft of the present utility model.

[0018] Figure 6 is a schematic view of the use state of the present utility model.

[0019] In the figure: 1. Rotating mandrel, 2. Fixed disk, 2-1 plane, 3. Mounting seat, 3-1 through hole, 3-2. Limiting rib, 4. V-shaped valve core, 5. Positioning shaft, 5-1. Limiting block, 5-2. Limiting groove, 5-3. External thread, 5-4. Spline section, 6. Compression nut, 7. Base, 8. Driving mechanism, 9. Chuck, 10. Tailstock 11. Center. Detailed Embodiments

[0020] The present utility model will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] As Figure 1 shown, the V-shaped valve core 4 used in the eccentric rotary regulating valve is a hemispherical structure integrally formed by precision casting, and the spherical thickness is about 15 mm; the outer end of the V-shaped valve core 4 has a shaft hole, and the inner end is a spline hole, which is matched with the external spline on the valve body spindle during valve body assembly to transmit torque.

[0022] As Figures 2 to 5A V-shaped valve core supersonic spraying positioning and machining tooling as shown. The spraying and machining tooling includes a rotating mandrel 1 and a fixed disk 2. The left and right sides of the rotating mandrel 1 respectively have key grooves, snap ring grooves and positioning steps. The center of the fixed disk 2 has a key groove. The fixed disk 2 is key-connected to the rotating mandrel 1 through a flat key. One side of the fixed disk 2 abuts against the side surface of the positioning step of the rotating mandrel 1. A snap ring for clamping the other side of the fixed disk is arranged in the snap ring groove of the rotating mandrel 1. Each outer peripheral surface of the fixed disk 2 has eight planes 2-1 evenly distributed in the circumferential direction, and two screw holes are arranged at intervals on the plane 2-1.

[0023] L-shaped mounting seats 3 are evenly arranged in the circumferential direction on the outer peripheral surface of the fixed disk 2. The horizontal part of the mounting seat 3 is mounted on the plane 2-1 on the outer peripheral surface of the fixed disk 2 and fixed to the plane 2-1 through fixing bolts. A limiting rib 3-2 is arranged on the surface of the horizontal part of the mounting seat 3. The vertical part of the mounting seat 3 has a through hole 3-1. The inner side surface of the outer end of the V-shaped valve core 4 abuts against the inner side surface of the vertical part of the mounting seat 3. A positioning shaft 5 is inserted through the through hole 3-1 from the shaft hole at the outer end of the V-shaped valve core 4 to the spline hole at the inner end of the V-shaped valve core 4. A limiting block 5-1 is arranged at the outer end of the positioning shaft 5. A limiting groove 5-2 is arranged on the outer peripheral surface of the limiting block 5-1. The limiting rib 3-2 is clamped into the limiting groove 5-2 to prevent the positioning shaft 5 from rotating. The inner end of the positioning shaft 5 has an external thread 5-3. A spline section 5-4 matching the spline hole at the inner end of the V-shaped valve core 4 is arranged on the positioning shaft 5 inside the external thread 5-3. A pressing nut 6 pressing against the outer side surface of the inner end of the V-shaped valve core 4 is connected to the external thread 5-3 of the positioning shaft 5.

[0024] Particularly, Figure 2 One V-shaped valve core 4 is removed in the figure to show the internal structure clearly.

[0025] As Figure 6 shown, the spraying and machining tooling is installed on a base 7. A driving mechanism 8 is arranged on the left side of the base 7. The chuck 9 of the driving mechanism 8 clamps the left end of the rotating mandrel 1. A tailstock 10 is arranged on the right side of the base 7. A center 11 is installed on the tailstock 10. The center 11 rotatably supports the right end of the rotating mandrel 1.

[0026] During spraying, the rotating mandrel 1 is installed between the chuck 9 and the center 11. After alignment, the driving mechanism 8 drives the rotating mandrel 1 to rotate, and then the V-shaped valve core 4 can be spray-processed. After one-time clamping and alignment of the utility model, multiple V-shaped valve cores 4 can be sprayed at one time, reducing the spraying cost, improving the spraying efficiency, and realizing batch production.

[0027] Taking the above-described ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A supersonic spraying positioning and machining tooling for a V-shaped valve core, comprising a rotating mandrel (1), characterized in that: A pair of fixed disks (2) are mounted at a distance on the rotating mandrel (1). On the outer circumferential surface of the fixed disk (2), L-shaped mounting seats (3) are circumferentially arranged. The horizontal part of the mounting seat (3) is fixed to the outer circumferential surface of the fixed disk (2). The inner side surface of the outer end of the V-shaped valve core (4) abuts against the inner side surface of the vertical part of the mounting seat (3). The vertical part of the mounting seat (3) has a through hole (3-1). A positioning shaft (5) is inserted through the shaft hole at the outer end of the V-shaped valve core (4), through the through hole (3-1), and into the spline hole at the inner end of the V-shaped valve core (4). A compression nut (6) is connected to the inner side end of the positioning shaft (5) and presses against the outer side surface of the inner end of the V-shaped valve core (4).

2. The supersonic spraying positioning and machining tooling for the V-shaped valve core according to claim 1, wherein: The outer circumferential surface of the fixed disk (2) has eight circumferentially evenly distributed planes (2-1). Screw holes are formed in the planes (2-1). The horizontal part of the mounting seat (3) is fixed to the plane (2-1) by fixing bolts.

3. The V-shaped valve core supersonic spraying positioning and machining tooling according to claim 1, characterized in that: The outer side end of the positioning shaft (5) has a limiting block (5-1). A limiting groove (5-2) is formed on the outer circumferential surface of the limiting block (5-1). A limiting rib (3-2) matching the limiting groove (5-2) is provided on the surface of the horizontal part of the mounting seat (3).

4. The supersonic spraying positioning and machining tooling for the V-shaped valve core according to claim 3, characterized in that: The inner side end of the positioning shaft (5) has an external thread (5-3) matching the compression nut (6). A spline section (5-4) matching the spline hole at the inner end of the V-shaped valve core (4) is provided on the positioning shaft (5) inside the external thread (5-3).

5. The V-shaped valve core supersonic spraying positioning and machining tooling according to claim 1, characterized in that: The rotating mandrel (1) and the fixed disk (2) are connected by a flat key.

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