Machining tool for valve seat of large-displacement floating ball drain valve

Abstract

The utility model relates to the technical field of floating ball drain valve seat machining equipment, in particular to a large-displacement floating ball drain valve seat machining tool which comprises a main shell, a glass observation window and a lower rotating door are rotationally connected to the outer side of the main shell, and a partition plate is fixedly connected to the inner side of the main shell. A scrap collecting box is arranged on the inner side of the main shell and located below the partition plate, and a grinding assembly is arranged on the inner top wall of the main shell. Through the collaborative design of the supporting ejector pin and the supporting steel ball, the clamping device can adapt to the outer surfaces of valve bodies with different contours and is suitable for high-precision clamping of floating ball drain valve bodies with different sizes and volumes, clamping stability is ensured through cooperation of the limiting ring and the guide through hole, machining errors caused by vibration of a workpiece are reduced, and machining efficiency is improved. The fixed sealing box is driven by the driving motor to rotate, and the linkage control of the linear motor and the magnetic guide rail is matched, so that the double-sided automatic overturning and positioning of the valve body are realized, repeated disassembly and clamping are not needed, and the machining efficiency and the surface treatment uniformity are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to float ball trap valve seat processing equipment technical field, specifically a kind of processing frock of large displacement float ball trap valve seat. BACKGROUND

[0002] Float ball trap valve is used in steam pipe network and equipment, can automatically discharge condensate, air and other non-condensable gas, and the valve that water vapor leaks is prevented.Large displacement float ball trap valve seat is usually cast or forged into shape, and the valve seat after forming needs to be polished and painted, to increase the corrosion resistance of valve seat, to prolong the service life of valve seat.

[0003] After searching, the prior art mostly uses fixed-size clamps to fix the valve body, which is difficult to adapt to valve bodies of different profiles or sizes, especially when clamping special-shaped valve bodies, the contact area is insufficient, which can cause workpiece loosening or uneven stress, frequent manual replacement of clamps is required, which is very inconvenient and affects the machining precision.Therefore, a kind of processing frock of large displacement float ball trap valve seat is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the problem raised in the above background technical, provide a kind of processing frock of large displacement float ball trap valve seat, it has the advantage that different profiles or sizes of valve body can be flexibly adapted, solve the problem raised in the above background technical.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of processing frock of large displacement float ball trap valve seat, including main casing, glass observation window and lower rotary door are rotationally connected on the outside of the main casing, the inner side of the main casing is fixedly connected with partition plate, the inner side of the main casing is below partition plate and is provided with scrap collector, the inner top wall of the main casing is provided with polishing assembly, the upper fixed seat is fixedly connected above the partition plate, one end of the magnetic guide rail is fixedly connected on the side of the upper fixed seat, one end of the guide slide rail is fixedly connected on the side of the upper fixed seat, mobile slide is provided above the partition plate, linear motor is embedded in the inner side of the mobile slide, the upper fixed support is fixedly connected above the upper fixed seat and the mobile slide, the side of the upper fixed support is fixedly connected with drive motor, the other side of the upper fixed support is rotationally connected with fixed sealing box, a plurality of groups of support steel balls are provided in the inner side of the fixed sealing box, a plurality of groups of guide through holes are formed in the side of the fixed sealing box, support thimble is provided in the inner side of the guide through hole.

[0006] Preferably, the partition plate is a horizontal plate with solid middle and a plurality of through holes on both sides.

[0007] Preferably, the other end of the magnetic guide rail and the guide slide rail is fixedly connected above the partition plate.

[0008] Preferably, the inner side of the movable slide plate is provided with a guide hole that matches the guide rail, and the linear motor is matched with the magnetic guide rail.

[0009] Preferably, the rotating shaft of the drive motor passes through the upper fixed bracket and is fixedly connected to the fixed sealing box.

[0010] Preferably, the diameter of the support pin is adapted to the guide through hole, and a limiting ring slightly larger than the guide through hole is fixedly connected to the tail of the support pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the coordinated design of the supporting pin and the supporting steel ball can adapt to the outer surface of the valve body with different contours, and is suitable for high-precision clamping of float drain valve bodies of different sizes and volumes. The cooperation between the limiting ring and the guide through hole ensures clamping stability and reduces machining errors caused by workpiece vibration.

[0013] 2. In this utility model, the fixed sealing box is driven to rotate by a drive motor, and the linkage control of the linear motor and the magnetic guide rail realizes the automatic double-sided flipping and positioning of the valve body, eliminating the need for repeated disassembly and clamping, and significantly improving the processing efficiency and surface treatment uniformity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the machining tooling for the valve seat of the large-displacement float steam trap according to an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the main housing in the machining tooling for the valve seat of the large-displacement float steam trap according to an embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the linear motor structure in the machining tooling for the large-displacement float drain valve seat according to an embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the structure supporting the steel ball in the machining tooling of the large-displacement float steam trap seat according to an embodiment of this application.

[0018] In the diagram: 1. Main housing; 2. Glass observation window; 3. Lower rotating door; 4. Divider plate; 5. Debris collection box; 6. Grinding assembly; 7. Upper fixed base; 8. Magnetic guide rail; 9. Guide slide rail; 10. Moving slide plate; 11. Linear motor; 12. Upper fixed bracket; 13. Drive motor; 14. Fixed sealing box; 15. Supporting steel ball; 16. Guide through hole; 17. Supporting ejector pin. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 -Figure 4 This application will be described in further detail.

[0020] Reference Figure 1 - Figure 2 In this embodiment of the utility model, a machining fixture for a large-displacement float drain valve seat includes a main housing 1. A glass observation window 2 and a lower rotating door 3 are rotatably connected to the outside of the main housing 1. A partition plate 4 is fixedly connected to the inside of the main housing 1. The partition plate 4 is a horizontal plate with a solid center and several sets of through holes on both sides. A debris collection box 5 is provided below the partition plate 4 on the inside of the main housing 1. A grinding assembly 6 is provided on the inner top wall of the main housing 1.

[0021] Specifically, the main housing 1 serves as an integral support structure, and the glass observation window 2 is opened and closed through a rotating connection to facilitate real-time observation of the internal processing status; the lower rotating door 3 can be rotated open to clean the debris collection box 5, the solid middle part of the partition plate 4 provides structural rigid support, and the through holes on both sides allow the debris generated during processing to fall through the partition plate 4 into the debris collection box 5 below for centralized processing, and the grinding assembly 6 is fixed to the inner top wall of the main housing 1, and performs precision machining on the valve seat surface through high-speed rotation or linear reciprocating motion, and is connected to the external power supply of the main housing 1 through wires.

[0022] Reference Figure 1 - Figure 3 A fixed upper base 7 is fixedly connected to the upper partition plate 4. One end of a magnetic guide rail 8 is fixedly connected to the side of the upper fixed base 7. One end of a guide slide rail 9 is fixedly connected to the side of the upper fixed base 7. The other ends of the magnetic guide rail 8 and the guide slide rail 9 are fixedly connected to the upper part of the partition plate 4. A movable slide plate 10 is provided above the partition plate 4. A linear motor 11 is embedded in the inner side of the movable slide plate 10. A guide hole adapted to the guide slide rail 9 is opened in the inner side of the movable slide plate 10. The linear motor 11 is adapted to the magnetic guide rail 8.

[0023] Specifically, the linear motor 11 works in conjunction with the magnetic guide rail 8, and the moving slide plate 10 moves linearly along the magnetic guide rail 8 through current control; the guide rail 9 works in conjunction with the guide hole of the moving slide plate 10, which restricts the movement trajectory of the moving slide plate 10 and improves the load-bearing stability, so as to realize the stable clamping of the valve seat by the machining fixture.

[0024] Reference Figure 1 - Figure 4 An upper fixed bracket 12 is fixedly connected above both the upper fixed base 7 and the movable slide plate 10. A drive motor 13 is fixedly connected to the side of the upper fixed bracket 12, and a fixed sealing box 14 is rotatably connected to the other side of the upper fixed bracket 12. The rotation shaft of the drive motor 13 passes through the upper fixed bracket 12 and is fixedly connected to the fixed sealing box 14.

[0025] Specifically, the drive motor 13 drives the fixed sealing box 14 to rotate via the rotating shaft. The fixed sealing box 14 is used to clamp the valve seat workpiece. The upper fixed bracket 12 provides rigid support for the drive motor 13 and the fixed sealing box 14, ensuring that the rotation axis is aligned with the positioning reference of the machining fixture.

[0026] Reference Figure 1 - Figure 4 The inner side of the fixed sealing box 14 is provided with several sets of supporting steel balls 15, and the side of the fixed sealing box 14 is provided with several sets of guide through holes 16. The inner side of the guide through hole 16 is provided with a supporting pin 17. The diameter of the supporting pin 17 is adapted to the guide through hole 16. The tail of the supporting pin 17 is fixedly connected with a limiting ring that is slightly larger than the guide through hole 16 to prevent it from falling out.

[0027] Specifically, the support steel ball 15 rolls freely within the fixed sealing box 14, adapting to the extension and retraction of the support pin 17 through its own fluidity. When the needle tip surface of the support pin 17 contacts the outer surface of the valve body, the difference in the valve body contour forces each support pin 17 to independently retract or extend along the guide through hole 16. The support steel ball 15 then rolls to the corresponding position, forming a reverse support force, so that the needle tip surface of all support pins 17 eventually completely fits the valve body surface, achieving flexible clamping. The limiting ring prevents the support pin 17 from disengaging from the guide through hole 16 through mechanical limiting, ensuring the synchronization and stability of each pin during clamping, which is especially suitable for high-precision machining of irregularly shaped valve bodies.

[0028] The working principle of this utility model is as follows: In the machining process of the valve seat of the large-capacity float steam trap, the linear motor 11 is preferably of type XG20, and the drive motor 13 is preferably of type HBS57. Both the linear motor 11 and the drive motor 13 are electrically connected to an external power supply through a switch. The linear motor 11, also known as a linear motor, is, as the name suggests, a motor that can generate linear motion. The linear motor 11 converts electrical energy into mechanical energy for linear motion without any intermediate transmission conversion device. The valve body is placed between two sets of fixed sealing boxes 14. The linear motor 11 and the magnetic guide rail 8 are started by the switch, driving the two sets of fixed sealing boxes 14 to move towards each other along the guide slide rail 9 until the needle head surface of the support pin 17 contacts the valve body surface. The support pin 17 independently extends and retracts along the guide through hole 16 according to the difference in the shape of the valve body. The support steel ball 15 adjusts its position adaptively through free rolling, forming a reverse... The supporting force ensures that the needle tip surfaces of all supporting pins 17 are fully in contact with the valve body surface, achieving flexible clamping. The limiting ring prevents the supporting pins 17 from falling out, ensuring clamping synchronization. The grinding assembly 6 on the inner top wall of the main housing 1 is activated to perform high-speed rotation or linear reciprocating grinding on one side of the valve body surface. After grinding on one side is completed, the drive motor 13 is activated by the switch, which drives the fixed sealing box 14 and the clamped valve body to rotate through the rotating shaft, so that the unprocessed side is aligned with the grinding assembly 6. The grinding assembly 6 is activated again to perform the same precision processing on the other side of the valve body surface, achieving uniform processing on both sides. The debris generated during the processing falls into the debris collection box 5 through the through holes on both sides of the partition plate 4 for centralized storage. After processing is completed, the lower rotating door 3 is rotated and opened to clean the debris. The clamping status and processing progress are monitored in real time through the glass observation window 2. After processing is completed, the equipment is turned off, the moving slide plate 10 is reset, and the finished valve body is taken out.

[0029] The foregoing description, with reference to preferred embodiments, illustrates an exemplary embodiment of a self-positioning drilling device for an aluminum winding wheel for industrial doors provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.

Claims

1. A processing tool for large displacement float ball drain valve seat, comprising a main shell (1), characterized in that: The outer side of the main shell (1) is rotatably connected with a glass observation window (2) and a lower rotary door (3), the inner side of the main shell (1) is fixedly connected with a partition plate (4), the inner side of the main shell (1) is provided with a debris collection box (5) below the partition plate (4), the inner top wall of the main shell (1) is provided with a polishing assembly (6), the partition plate (4) is fixedly connected with an upper fixed seat (7) above, one end of the side of the upper fixed seat (7) is fixedly connected with a magnetic guide rail (8), one end of the side of the upper fixed seat (7) is fixedly connected with a guide slide rail (9), the partition plate (4) is provided with a moving slide plate (10) above, the inner side of the moving slide plate (10) is embedded with a linear motor (11), the upper fixed seat (7) and the moving slide plate (10) are both fixedly connected with an upper fixed support (12) above, the side of the upper fixed support (12) is fixedly connected with a driving motor (13), the other side of the upper fixed support (12) is rotatably connected with a fixed sealing box (14), the inner side of the fixed sealing box (14) is provided with a plurality of groups of supporting steel balls (15), a plurality of groups of guide through holes (16) are formed in the side of the fixed sealing box (14), and a supporting thimble (17) is arranged in the inner side of the guide through hole (16).

2. The machining tool for a large displacement float ball drain valve seat according to claim 1, characterized in that: The partition plate (4) is a horizontal plate with a solid middle and a plurality of groups of through holes formed in both sides.

3. The machining tooling for large capacity float and ball drain valve seats of claim 1, wherein: The other ends of the magnetic guide rail (8) and the guide slide rail (9) are both fixedly connected with the partition plate (4) above.

4. The processing tooling for large capacity float and ball drain valve seat according to claim 1, characterized in that: The inner side of the moving slide plate (10) is provided with a guide hole matched with the guide slide rail (9), and the linear motor (11) is matched with the magnetic guide rail (8).

5. The processing tooling for large capacity float and ball drain valve seat according to claim 1, wherein: The rotating shaft of the driving motor (13) penetrates through the upper fixed support (12) and is fixedly connected with the fixed sealing box (14).

6. A processing tool for a large capacity float and ball drain valve seat according to claim 1, characterized in that: The diameter of the supporting thimble (17) is matched with the guide through hole (16), and the tail of the supporting thimble (17) is fixedly connected with a limiting ring slightly larger than the guide through hole (16).

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