Valve seat tool facilitating positioning and machining

Abstract

The utility model discloses a valve seat tool convenient to position and process, which belongs to the field of valve seat tools, and comprises a processing table and a positioning seat, the positioning seat is connected to the top of the processing table, the top of the processing table is fixedly connected with a fixing ring, a plurality of groups of slideable racks are arranged on the circumference of the fixing ring in an array manner, and the rack is connected with the processing table. Positioning blocks are connected to the ends of the racks, an inner gear ring is rotatably connected to the inner wall of the fixing ring, multiple sets of transmission gears are rotatably connected to the interior of the fixing ring, and the multiple sets of transmission gears are connected with the multiple sets of racks in a meshed mode; the inner gear ring rotates to drive the multiple sets of transmission gears to rotate, the multiple sets of transmission gears are meshed with the multiple sets of racks, so that the multiple sets of racks are driven to synchronously slide on the fixing ring, the multiple sets of racks slide to drive the multiple sets of positioning blocks to move to be attached to the multiple sets of outer walls of the valve seat, and the valve seat is clamped and fixed. And the consistency of multi-surface clamping and fixing force and the convenience of fixing are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve seat tooling, in particular to a valve seat tooling which is convenient for positioning and processing. Background Art

[0002] The valve seat is a detachable surface component 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. For example, the valve seat material of a butterfly valve is very wide, and various types of rubber, plastic and metal materials can be used as valve seat materials. When processing the valve seat, it needs to be fixed on the tooling workbench with a fixture for processing.

[0003] However, the existing valve seat processing tooling uses manual clamping and limiting, which is time-consuming and labor-intensive, and the degree of manual clamping cannot be consistent each time, affecting the processing effect. In addition, the fixture is fixedly installed, which is inconvenient to replace the fixture according to different usage conditions. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a valve seat tooling that is easy to position and process, so as to solve the problem in the prior art that the existing valve seat processing tooling uses manual clamping and limiting, which is time-consuming and labor-intensive, and the degree of manual clamping cannot be consistent each time, affecting the processing effect, and the fixture is fixed and installed, making it inconvenient to replace the fixture according to different usage conditions.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A valve seat tooling that is convenient for positioning and processing comprises a processing table and a positioning seat, wherein the positioning seat is connected to the top of the processing table, a fixing ring is fixedly connected to the top of the processing table, a plurality of groups of slidable racks are arranged in a circular array on the fixing ring, a positioning block is connected to the end of the rack, an inner gear ring is rotatably connected to the inner wall of the fixing ring, a plurality of groups of transmission gears are rotatably connected inside the fixing ring, and the plurality of groups of transmission gears are respectively meshed and connected with the plurality of groups of racks.

[0007] As a further solution of the utility model: the top of the processing table is located inside the fixed ring and is fixedly connected to a limit ring, and a plurality of groups of the racks are slidably connected to the limit ring.

[0008] As a further solution of the utility model: the side wall of the rack is fixedly connected to a limit bar, and the limit bar is slidably connected to the fixing ring.

[0009] As a further solution of the utility model: a driving gear is arranged on the top of the processing table, and the driving gear is meshed and connected with the inner gear ring.

[0010] As a further solution of the utility model: a protective cover is fixedly connected to the top of the processing table, the protective cover is sleeved on the outside of the fixing ring, and the inner wall is located outside the positioning seat, the end of the rack is fixedly connected to a connecting rod, the positioning block is fixedly connected to the end of the connecting rod, and the connecting rod is slidably connected to the inner wall of the protective cover.

[0011] As a further solution of the utility model: a plurality of discharge grooves are provided on the top of the processing table between the positioning seat and the inner wall of the protective cover.

[0012] As a further solution of the utility model: the positioning seat is rotatably connected to the top of the processing table, the side wall of the positioning seat is fixedly connected with a scraper, and the bottom of the scraper is in contact with the top of the processing table.

[0013] Beneficial effects of the utility model:

[0014] 1. In the utility model, the rotation of the inner gear ring drives the rotation of multiple sets of transmission gears, and the multiple sets of transmission gears mesh with the multiple sets of racks, thereby driving the multiple sets of racks to slide synchronously on the fixed ring. The sliding of the multiple sets of racks drives the multiple sets of positioning blocks to move and fit against the multiple sets of outer walls of the valve seat, thereby clamping and fixing the valve seat, thereby improving the consistency of the multi-faceted clamping force and the convenience of fixing.

[0015] 2. In the utility model, by rotating the positioning seat, the positioning seat drives the scraper to rotate, and the debris generated during the valve seat processing is scraped into the discharge trough for discharge, thereby avoiding the debris from remaining on the processing table and improving the convenience of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the rack and transmission gear structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the fixed ring section in the utility model;

[0021] Figure 5 It is a schematic diagram of the positioning seat and the scraper structure in the utility model.

[0022] In the figure: 1, processing table; 101, positioning seat; 102, discharge chute; 2, fixing ring; 3, rack; 301, limit strip; 4, positioning block; 401, connecting rod; 5, inner gear ring; 6, transmission gear; 601, driving gear; 7, limit ring; 8, protective cover; 9, scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 5 As shown, a valve seat tooling that is convenient for positioning processing includes a processing table 1 and a positioning seat 101, the positioning seat 101 is connected to the top of the processing table 1, a fixing ring 2 is fixedly connected to the top of the processing table 1, a plurality of groups of slidable racks 3 are arranged in a circular array on the fixing ring 2, a positioning block 4 is connected to the end of the rack 3, an inner gear ring 5 is rotatably connected to the inner wall of the fixing ring 2, a plurality of groups of transmission gears 6 are rotatably connected inside the fixing ring 2, and the plurality of groups of transmission gears 6 are respectively meshed and connected with the plurality of groups of racks 3.

[0025] like Figure 1 As shown, the top of the processing table 1 is fixedly connected to a limit ring 7 located inside the fixed ring 2, and multiple groups of racks 3 are slidably connected to the limit ring 7. The setting of the limit ring 7 improves the sliding stability of the rack 3.

[0026] like Figure 1 and Figure 3 As shown, the side wall of the rack 3 is fixedly connected to the limit bar 301, and the limit bar 301 is slidably connected to the fixing ring 2. The limit bar 301 slides on the fixing ring 2 to improve the sliding stability of the rack 3.

[0027] like Figure 1 As shown, a driving gear 601 is arranged on the top of the processing table 1, and the driving gear 601 is meshed and connected with the inner gear ring 5, so as to facilitate driving the inner gear ring 5 to rotate.

[0028] like Figure 1 and Figure 2As shown, a protective cover 8 is fixedly connected to the top of the processing table 1 mentioned above. The protective cover 8 is sleeved on the outside of the fixed ring 2, and the inner wall is located outside the positioning seat 101, so as to facilitate the protection of the fixed ring 2 and prevent waste chips generated by processing the valve seat from falling into the vicinity of the fixed ring 2, the rack 3 and the transmission gear 6 to cause transmission interference. At the same time, a connecting rod 401 is fixedly connected to the end of the rack 3, and the positioning block 4 is fixedly connected to the end of the connecting rod 401. The connecting rod 401 is slidably connected to the inner wall of the protective cover 8 to prevent the positioning block 4 from moving and causing a gap on the protective cover 8, so that debris enters the inside of the protective cover 8.

[0029] like Figure 1 and Figure 5 As shown, a plurality of discharge grooves 102 are provided on the top of the processing table 1 between the positioning seat 101 and the inner wall of the protective cover 8, and the waste chips produced by processing are conveniently discharged through the plurality of discharge grooves 102. At the same time, the positioning seat 101 is rotatably connected to the top of the processing table 1, and a scraper 9 is fixedly connected to the side wall of the positioning seat 101. The bottom of the scraper 9 is in contact with the top of the processing table 1. The scraper 9 is driven to rotate by rotating the positioning seat 101, so that the debris remaining on the processing table 1 can be pushed into the discharge groove 102 for discharge.

[0030] The working principle of the utility model: when the user uses it, the valve seat is placed on the positioning seat 101, and then the driving gear 601 is started. The driving gear 601 meshes with the inner gear ring 5, thereby driving the inner gear ring 5 to rotate. The rotation of the inner gear ring 5 drives multiple sets of transmission gears 6 to rotate. The rotation of multiple sets of transmission gears 6 meshes with multiple sets of racks 3. The movement of multiple sets of racks 3 promotes multiple sets of positioning blocks 4 to move synchronously, and the outer wall of the valve seat on the positioning seat 101 is clamped and fixed. On the one hand, it can clamp and fix valve seats with outer walls of different diameters, and at the same time, it can clamp and fix multiple sides of the outer walls of the valve seat synchronously, thereby improving the convenience and stability of clamping and fixing. When it is necessary to release the fixation of the valve seat, it is only necessary to start the driving gear 601 in the reverse direction, thereby driving the multiple sets of positioning blocks 4 to move synchronously and separate from the outer wall of the valve seat.

[0031] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A valve seat tooling for convenient positioning processing, comprising a processing table (1) and a positioning seat (101), wherein the positioning seat (101) is connected to the top of the processing table (1), and is characterized in that: A fixing ring (2) is fixedly connected to the top of the processing table (1); a plurality of groups of slidable racks (3) are arranged in a circular array on the fixing ring (2); a positioning block (4) is connected to the end of the rack (3); an inner gear ring (5) is rotatably connected to the inner wall of the fixing ring (2); a plurality of groups of transmission gears (6) are rotatably connected inside the fixing ring (2); and the plurality of groups of transmission gears (6) are respectively meshed and connected with the plurality of groups of racks (3).

2. A valve seat tooling for easy positioning processing according to claim 1, characterized in that: The top of the processing table (1) is located inside the fixed ring (2) and is fixedly connected to a limiting ring (7), and a plurality of groups of racks (3) are slidably connected to the limiting ring (7).

3. A valve seat tooling for easy positioning processing according to claim 1, characterized in that: The side wall of the rack (3) is fixedly connected to a limit strip (301), and the limit strip (301) is slidably connected to the fixing ring (2).

4. The valve seat tooling for easy positioning processing according to claim 1 is characterized in that: A driving gear (601) is arranged on the top of the processing table (1), and the driving gear (601) is meshed and connected with the inner gear ring (5).

5. The valve seat tooling for easy positioning processing according to claim 1 is characterized in that: A protective cover (8) is fixedly connected to the top of the processing table (1); the protective cover (8) is sleeved on the outside of the fixing ring (2), and the inner wall is located outside the positioning seat (101); the end of the rack (3) is fixedly connected to a connecting rod (401); the positioning block (4) is fixedly connected to the end of the connecting rod (401); and the connecting rod (401) is slidably connected to the inner wall of the protective cover (8).

6. A valve seat tooling for easy positioning processing according to claim 5, characterized in that: The top of the processing table (1) is provided with a plurality of groups of discharge grooves (102) between the positioning seat (101) and the inner wall of the protective cover (8).

7. A valve seat tooling for easy positioning processing according to claim 6, characterized in that: The positioning seat (101) is rotatably connected to the top of the processing table (1), and a scraper (9) is fixedly connected to the side wall of the positioning seat (101), and the bottom of the scraper (9) is in contact with the top of the processing table (1).

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