Valve seat machining and positioning mechanism

Abstract

The utility model provides a valve seat machining positioning mechanism which comprises a base, a supporting plate is fixedly connected to the top end of the base, and a positioning assembly is fixedly connected to one side of the supporting plate. The valve seat positioning device has the advantages that the sliding seat in the positioning assembly is pulled to slide in the direction away from the supporting plate along the sliding rod, the two positioning rods connected with the positioning plate are driven to move at the same time in cooperation with the transmission rod, the first sliding rail and the guide groove, and therefore the distance between the two positioning rods can be adjusted according to the size of a valve seat; in the process, the adjusting rod can slide along the sleeve in the same direction at the same time, the distance between the two positioning rods can be limited by being matched with the locking bolt and the locking hole, the positioning holes are aligned and inserted into the surfaces of the positioning rods, and then positioning of the valve seat can be completed before machining. The valve seat can be prevented from deviating in the positioning process, and the machining quality can be improved.

Description

Technical Field

[0001] The utility model relates to a valve seat processing and positioning mechanism, belonging to the field of valve seat processing. Background Art

[0002] The valve seat refers to the removable surface part inside the valve, which is used to support the fully closed position of the valve core and form a sealing pair. Generally, the valve seat diameter is the maximum flow diameter of the valve. Before installing the valve seat on the valve body, it is usually necessary to grind the inner diameter of the valve seat or chamfer the valve seat, so it is often necessary to fix the valve seat on the processing device.

[0003] In the prior art, a number of fixed blocks surrounding the outside of the valve seat are usually used to position the valve seat. During this process, the several fixed blocks need to be moved toward the outside of the valve seat to clamp the valve seat. Since the valve seat is placed between the several fixed blocks without being limited, the valve seat is easily deviated from the preset position when the fixed blocks move, thereby affecting the processing quality. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a valve seat processing positioning mechanism to solve the problem that in the above-mentioned background technology, a plurality of fixed blocks surrounding the outside of the valve seat are usually used to position the valve seat, and in this process, a plurality of fixed blocks need to be moved toward the outside of the valve seat to clamp the valve seat. Since the valve seat is placed between a plurality of fixed blocks without being limited, the valve seat is easily deviated from the preset position when the fixed blocks are moved, thereby affecting the processing quality.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a valve seat processing positioning mechanism, including a base, the top of the base is fixedly connected to a support plate, one side of the support plate is fixedly connected to a positioning component, the side of the positioning component away from the support plate is movably connected to the valve seat, and positioning holes are opened on both sides of the valve seat.

[0006] Furthermore, the positioning assembly includes a sliding rod fixedly connected to one side of the support plate, the sliding rod is fixedly connected to the first slide rail on the side away from the support plate, and the inner wall of the first slide rail is provided with four guide grooves, and a sleeve is fixedly connected to one side of the support plate above the slide rod, an adjusting rod is slidably connected in the sleeve, locking holes are provided on the surface of the sleeve and the surface of the adjusting rod, a locking bolt is threadedly connected in the locking hole, a sliding seat is fixedly connected to the side of the adjusting rod away from the sleeve, the sliding seat and the sliding rod are slidably connected, two transmission rods are rotatably connected to the surface of the sliding seat, a positioning plate is slidably connected in the guide groove, and a positioning rod is movably connected to the side of the positioning plate close to the first slide rail.

[0007] Furthermore, an anti-skid layer is fixedly connected to the surface of the positioning rod, and the diameter of the anti-skid layer is consistent with the diameter of the positioning hole.

[0008] Furthermore, a threaded rod is fixedly connected to one side of the positioning plate close to the first slide rail, and the threaded rod is threadedly connected to the positioning rod.

[0009] Furthermore, the sum of the lengths of the positioning plate and the positioning rod is greater than the length of the first slide rail, and the sum of the widths of the two positioning plates is greater than the width of the first slide rail.

[0010] Furthermore, a scale is fixedly connected to the surface of the adjusting rod, and each scale of the scale corresponds to each locking hole one by one.

[0011] Furthermore, a support frame is fixedly connected to the top of the base below the slide bar, and the support frame and the slide bar are fixedly connected.

[0012] Furthermore, the top end of the base is fixedly connected to second slide rails located on both sides of the support frame, and a collection drawer is slidably connected in the second slide rails.

[0013] The beneficial effects of the utility model are as follows: by pulling the slide seat in the positioning assembly to make it slide along the slide rod in the direction away from the support plate, the transmission rod, the first slide rail, and the guide groove will drive the two positioning rods connected to the positioning plate to move simultaneously, so that the distance between the two positioning rods can be adjusted according to the size of the valve seat. During this process, the adjusting rod will slide in the same direction along the sleeve at the same time, and the locking bolt and the locking hole can be used to limit the distance between the two positioning rods. The positioning hole is aligned and inserted into the surface of the positioning rod, so that the valve seat can be positioned before processing. Since the two positioning rods move in opposite directions at the same time, the valve seat can be prevented from being offset during the positioning process, which is beneficial to improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of a valve seat processing and positioning mechanism of the utility model.

[0016] Figure 2 It is a schematic diagram of the side sectional structure of a valve seat processing and positioning mechanism of the utility model.

[0017] Figure 3 It is a schematic diagram of a positioning component structure of a valve seat processing positioning mechanism of the utility model.

[0018] Figure 4It is a schematic diagram of the anti-skid layer disassembly structure of a valve seat processing and positioning mechanism of the utility model.

[0019] Figure 5 It is a schematic diagram of an enlarged structure of an adjusting rod of a valve seat processing and positioning mechanism of the utility model.

[0020] In the figure: 1. base; 2. support plate; 3. positioning assembly; 31. slide rod; 32. first slide rail; 33. guide groove; 34. sleeve; 35. adjustment rod; 36. slide seat; 37. transmission rod; 38. positioning plate; 39. positioning rod; 4. valve seat; 5. positioning hole; 6. anti-slip layer; 7. threaded rod; 8. scale; 9. support frame; 10. second slide rail; 11. collection drawer. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 and Figure 3 The utility model provides a technical solution: a valve seat processing and positioning mechanism, including a base 1, a support plate 2 is fixedly connected to the top of the base 1, a positioning component 3 is fixedly connected to one side of the support plate 2, a valve seat 4 is movably connected to the side of the positioning component 3 away from the support plate 2, and positioning holes 5 are opened on both sides of the valve seat 4.

[0023] By pulling the slide seat 36 in the positioning assembly 3 to make it slide along the slide rod 31 in the direction away from the support plate 2, the transmission rod 37, the first slide rail 32, and the guide groove 33 will drive the two positioning rods 39 connected to the positioning plate 38 to move simultaneously, so that the distance between the two positioning rods 39 can be adjusted according to the size of the valve seat 4. During this process, the adjusting rod 35 will slide in the same direction along the sleeve 34 at the same time, and the locking bolt and the locking hole can be used to limit the distance between the two positioning rods 39. The positioning hole 5 is aligned and inserted into the surface of the positioning rod 39, so that the positioning of the valve seat 4 can be completed before processing. Since the two positioning rods 39 move in opposite directions at the same time, the valve seat 4 can be prevented from being offset during the positioning process, which is beneficial to improving the processing quality.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The positioning assembly 3 includes a sliding rod 31 fixedly connected to one side of the support plate 2, and the side of the sliding rod 31 away from the support plate 2 is fixedly connected to the first sliding rail 32, and the inner wall of the first sliding rail 32 is provided with four guide grooves 33, and a sleeve 34 is fixedly connected to one side of the support plate 2 above the sliding rod 31, and an adjusting rod 35 is slidably connected in the sleeve 34, and locking holes are provided on the surfaces of the sleeve 34 and the adjusting rod 35, and a locking bolt is threadedly connected in the locking hole, and a sliding seat 36 is fixedly connected to the side of the adjusting rod 35 away from the sleeve 34, and the sliding seat 36 is slidably connected to the sliding rod 31, and two transmission rods 37 are rotatably connected to the surface of the sliding seat 36, and a positioning plate 38 is slidably connected in the guide groove 33, and a positioning rod 39 is movably connected to the side of the positioning plate 38 close to the first sliding rail 32. Pull the slide 36 to make it slide along the slide rod 31 in the direction away from the support plate 2. As the slide 36 slides, the two transmission rods 37 connected to its surface will rotate and drive the two positioning plates 38 in the first slide rail 32 to slide along the guide groove 33, thereby driving the two positioning rods 39 connected to the positioning plates 38 to move simultaneously, so that the distance between the two positioning rods 39 can be adjusted according to the size of the valve seat 4. During this process, the adjusting rod 35 will slide in the same direction along the sleeve 34 at the same time. After the distance between the positioning rods 39 is adjusted, tighten the locking bolt so that the locking bolt passes through the locking holes opened on the surfaces of the sleeve 34 and the adjusting rod 35 in turn, so as to limit the distance between the two positioning rods 39.

[0025] The surface of the positioning rod 39 is fixedly connected with an anti-skid layer 6, and the diameter of the anti-skid layer 6 is consistent with the diameter of the positioning hole 5. The anti-skid layer 6 can increase the friction between the positioning hole 5 and the positioning rod 39, thereby improving the firmness of the connection between the valve seat 4 and the positioning rod 39.

[0026] The threaded rod 7 is fixedly connected to one side of the positioning plate 38 near the first slide rail 32, and the threaded rod 7 is threadedly connected to the positioning rod 39. As the anti-skid layer 6 will wear out over time, the anti-skid layer 6 can be replaced by rotating the positioning rod 39 to completely separate it from the surface of the threaded rod 7.

[0027] The sum of the lengths of the positioning plate 38 and the positioning rod 39 is greater than the length of the first slide rail 32, and the sum of the widths of the two positioning plates 38 is greater than the width of the first slide rail 32. The sum of the lengths of the positioning plate 38 and the positioning rod 39 is greater than the length of the first slide rail 32 to ensure that the outer side of the valve seat 4 can contact the side of the first slide rail 32, and the sum of the widths of the two positioning plates 38 is greater than the width of the first slide rail 32 to ensure that the positioning rod 39 can always be located outside the first slide rail 32.

[0028] The surface of the adjusting rod 35 is fixedly connected with a scale 8, and each scale of the scale 8 corresponds to each locking hole. The scale 8 is provided to facilitate the quick adjustment of the length of the adjusting rod 35 extending out of the sleeve 34 according to the size of the valve seat 4.

[0029] The top of the base 1 is fixedly connected with a support frame 9 below the slide bar 31, and the support frame 9 is fixedly connected to the slide bar 31. By providing the support frame 9, additional support can be provided for the slide bar 31, thereby preventing the slide bar 31 from falling off from the side of the support plate 2.

[0030] The top of the base 1 is fixedly connected to the second slide rails 10 on both sides of the support frame 9, and a collection drawer 11 is slidably connected inside the second slide rails 10. The debris generated when processing the valve seat 4 will fall into the collection drawer 11, and the collection drawer 11 will collect the debris in a centralized manner. The waste debris can be cleaned by pulling the collection drawer 11 until it is completely separated from the second slide rail 10.

[0031] Specific implementation method: First, pull the slide 36 to make it slide along the slide rod 31 in the direction away from the support plate 2. As the slide 36 slides, the two transmission rods 37 connected to its surface will rotate and drive the two positioning plates 38 in the first slide rail 32 to slide along the guide groove 33, thereby driving the two positioning rods 39 connected to the positioning plates 38 to move simultaneously, so that the distance between the two positioning rods 39 can be adjusted according to the size of the valve seat 4. In this process, the adjusting rod 35 will slide in the same direction along the sleeve 34 at the same time. After the distance between the positioning rods 39 is adjusted, tighten the locking bolt so that the locking bolt passes through the locking holes opened on the surfaces of the sleeve 34 and the adjusting rod 35 in turn, so as to limit the distance between the two positioning rods 39. Finally, align the positioning holes 5 opened on both sides of the valve seat 4 and insert them into the surface of the positioning rods 39, so as to complete the positioning of the valve seat 4 before processing. Since the two positioning rods 39 move in opposite directions at the same time, the valve seat 4 can be prevented from being offset during the positioning process, which is beneficial to improving the processing quality.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A valve seat processing and positioning mechanism, characterized in that: The valve comprises a base (1), the top of the base (1) being fixedly connected to a support plate (2), one side of the support plate (2) being fixedly connected to a positioning assembly (3), a side of the positioning assembly (3) away from the support plate (2) being movably connected to a valve seat (4), and positioning holes (5) being provided on both sides of the valve seat (4).

2. A valve seat processing and positioning mechanism according to claim 1, characterized in that: The positioning assembly (3) comprises a slide bar (31) fixedly connected to one side of the support plate (2); a first slide rail (32) is fixedly connected to the side of the slide bar (31) away from the support plate (2); four guide grooves (33) are formed on the inner wall of the first slide rail (32); a sleeve (34) is fixedly connected to one side of the support plate (2) above the slide bar (31); an adjustment rod (35) is slidably connected to the sleeve (34); a surface of the sleeve (34) is rotatable with the adjustment rod (35); The surfaces are provided with locking holes, and the locking holes are threadedly connected with locking bolts. The side of the adjusting rod (35) away from the sleeve (34) is fixedly connected with a slide seat (36), and the slide seat (36) and the slide rod (31) are slidably connected. The surface of the slide seat (36) is rotatably connected with two transmission rods (37). A positioning plate (38) is slidably connected in the guide groove (33), and a positioning rod (39) is movably connected to the side of the positioning plate (38) close to the first slide rail (32).

3. A valve seat processing and positioning mechanism according to claim 2, characterized in that: An anti-slip layer (6) is fixedly connected to the surface of the positioning rod (39), and the diameter of the anti-slip layer (6) is consistent with the diameter of the positioning hole (5).

4. A valve seat processing and positioning mechanism according to claim 2, characterized in that: A threaded rod (7) is fixedly connected to one side of the positioning plate (38) close to the first slide rail (32), and the threaded rod (7) is threadedly connected to the positioning rod (39).

5. The valve seat processing and positioning mechanism according to claim 2, characterized in that: The sum of the lengths of the positioning plate (38) and the positioning rod (39) is greater than the length of the first slide rail (32), and the sum of the widths of the two positioning plates (38) is greater than the width of the first slide rail (32).

6. A valve seat processing and positioning mechanism according to claim 2, characterized in that: A scale (8) is fixedly connected to the surface of the adjusting rod (35), and each scale of the scale (8) corresponds to each locking hole one by one.

7. A valve seat processing and positioning mechanism according to claim 2, characterized in that: The top end of the base (1) is located below the slide bar (31) and is fixedly connected to a support frame (9), and the support frame (9) and the slide bar (31) are fixedly connected.

8. A valve seat processing and positioning mechanism according to claim 7, characterized in that: The top end of the base (1) is fixedly connected to second slide rails (10) located on both sides of the support frame (9), and a collection drawer (11) is slidably connected inside the second slide rails (10).

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