Adjustable clamping fixture for machining mechanical sealing element

Abstract

The utility model discloses an adjustable mechanical sealing element machining clamping fixture which comprises a base, a first electric telescopic rod is arranged on the base, and an inner supporting mechanism is arranged on the first electric telescopic rod. The height of the inner supporting mechanism is adjusted through telescopic adjustment of a first electric telescopic rod, so that it is guaranteed that after the inner hole of the mechanical sealing piece is machined, the inner supporting mechanism ascends to the working area, the inner wall of the machined mechanical sealing piece is fixed, and the machining precision of the inner hole of the mechanical sealing piece is improved. Compared with the prior art, the outer wall machining device has the advantages that the operation is more convenient, the concentricity between the outer wall and an inner hole of the machined mechanical sealing element is effectively improved, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, and in particular to an adjustable clamping fixture for processing mechanical seals. Background Technology

[0002] Mechanical seals are among the most precise and complex basic mechanical components, and are key parts of various pumps, reaction vessels, turbine compressors, submersible motors, and other equipment.

[0003] When machining mechanical seals, it is usually necessary to first use a clamping fixture to fix the outer wall of the mechanical seal blank and machine the inner hole, and then fix the machined inner hole to machine the outer wall. Existing clamping fixtures require secondary clamping of the mechanical seal, which can easily lead to deviations in the concentricity between the outer wall and the inner hole, and the operation is inconvenient. Therefore, an adjustable clamping fixture for machining mechanical seals is needed to meet people's needs. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable clamping fixture for machining mechanical seals, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable clamping fixture for processing mechanical seals, comprising a base, on which a first electric telescopic rod is provided, and on which an inner support mechanism is provided, the inner support mechanism being composed of a first support plate, a connecting rod, a second support plate, a second electric telescopic rod, a connecting block, a rotating rod, a limiting block, and a support rod; two columns are provided on the base, and a clamping mechanism is provided at the top of the two columns; the clamping mechanism comprising a top plate, a third electric telescopic rod, a driving block, a first clamping rod, a second clamping rod, and a linkage mechanism; the linkage mechanism being composed of a first rack, a second rack, a gear, a first slider, and a second slider.

[0006] Preferably, the first support plate is connected to the telescopic shaft of the first electric telescopic rod, the connecting rod is connected to the first support plate, the second support plate is connected to the connecting rod, the second electric telescopic rod is disposed on the first support plate, the connecting block is disposed on the telescopic shaft of the second electric telescopic rod, one end of the rotating rod is rotatably connected to the connecting block, and the other end is rotatably connected to the limiting block, the limiting block is slidably connected inside the second support plate, and the support rod is connected to the limiting block.

[0007] Preferably, the top plate is connected to the column, the third electric telescopic rod is set on the bottom end of the top plate, the drive block is connected to the telescopic shaft of the third electric telescopic rod and is slidably connected inside the top plate, the first clamping rod is connected to the drive block, and both the first clamping rod and the second clamping rod are provided with V-shaped grooves, which do not completely penetrate the first clamping rod and the second clamping rod from top to bottom.

[0008] Preferably, the first slider is connected to the bottom end of the first clamping rod and slidably connected inside the top plate, the first rack is connected to the bottom end of the first slider, the second slider is connected to the bottom end of the second clamping rod and slidably connected inside the top plate, the second rack is connected to the bottom end of the second slider, and the gear is rotatably connected to the bottom end of the top plate and meshes between the first rack and the second rack.

[0009] Preferably, both sides of the limiting block are provided with protrusions, which are slidably connected within the second support plate.

[0010] Preferably, a first groove is provided on the top plate, and the drive block is slidably connected in the first groove.

[0011] Preferably, the top plate has two second sliding grooves, and the first slider and the second slider are slidably connected in the corresponding second sliding grooves.

[0012] The beneficial effects of this utility model are:

[0013] This invention utilizes a clamping mechanism to clamp the outer wall of the mechanical seal, facilitating the machining of the inner hole. Furthermore, the height of the inner support mechanism is adjusted via the extension and retraction of the first electric telescopic rod. This ensures that after the inner hole is machined, the inner support mechanism rises to the working area to fix the machined inner wall. Once the clamping mechanism is released, the outer wall of the mechanical seal can be machined. Compared to existing technologies, this design is more convenient and effectively improves the concentricity between the machined outer wall and the inner hole, thus enhancing product quality.

[0014] In this invention, the adjustable clamping mechanism allows it to clamp and fix mechanical seals with different outer diameters, and the adjustable inner support mechanism allows it to fix mechanical seals with different inner diameters after processing, effectively improving the adaptability of the clamping fixture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an adjustable clamping fixture for processing mechanical seals according to the present invention.

[0016] Figure 2 This is a front cross-sectional view of an adjustable clamping fixture for machining mechanical seals, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the internal support mechanism of an adjustable clamping fixture for processing mechanical seals proposed in this utility model.

[0018] Figure 4This is a front cross-sectional view of the limiting block structure of an adjustable mechanical seal processing clamping fixture proposed in this utility model.

[0019] Figure 5 This is an exploded view of the clamping mechanism and linkage mechanism of an adjustable clamping fixture for processing mechanical seals proposed in this utility model.

[0020] Figure 6 This is a top view of the top plate of an adjustable clamping fixture for machining mechanical seals, as proposed in this utility model.

[0021] In the diagram: 1. Base; 2. First electric telescopic rod; 3. Internal support mechanism; 31. First support plate; 32. Connecting rod; 33. Second support plate; 34. Second electric telescopic rod; 35. Connecting block; 36. Rotating rod; 37. Limiting block; 38. Support rod; 39. Protrusion; 4. Column; 5. Clamping mechanism; 51. Top plate; 52. Third electric telescopic rod; 53. Drive block; 54. First clamping rod; 55. Second clamping rod; 56. V-groove; 57. First sliding groove; 58. Second sliding groove; 6. Linkage mechanism; 61. First rack; 62. Second rack; 63. Gear; 64. First slider; 65. Second slider. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-6 An adjustable clamping fixture for processing mechanical seals includes a base 1, on which a first electric telescopic rod 2 is mounted. An inner support mechanism 3 is mounted on the first electric telescopic rod 2. The inner support mechanism 3 consists of a first support plate 31, a connecting rod 32, a second support plate 33, a second electric telescopic rod 34, a connecting block 35, a rotating rod 36, a limiting block 37, and a support rod 38. Two columns 4 are mounted on the base 1, and a clamping mechanism 5 is mounted on the top of each column 4. The clamping mechanism 5 includes a top plate 51, a third electric telescopic rod 52, a driving block 53, a first clamping rod 54, a second clamping rod 55, and a linkage mechanism 6. The linkage mechanism 6 consists of a first rack 61, a second rack 62, a gear 63, a first slider 64, and a second slider 65.

[0024] Specifically, in this embodiment, the first support plate 31 is connected to the telescopic shaft of the first electric telescopic rod 2, the connecting rod 32 is connected to the first support plate 31, the second support plate 33 is connected to the connecting rod 32, the second electric telescopic rod 34 is disposed on the first support plate 31, the connecting block 35 is disposed on the telescopic shaft of the second electric telescopic rod 34, one end of the rotating rod 36 is rotatably connected to the connecting block 35, and the other end is rotatably connected to the limiting block 37, the limiting block 37 is slidably connected inside the second support plate 33, and the support rod 38 is connected to the limiting block 37.

[0025] Specifically, in this embodiment, the top plate 51 is connected to the column 4, the third electric telescopic rod 52 is set on the bottom end of the top plate 51, the drive block 53 is connected to the telescopic shaft of the third electric telescopic rod 52 and is slidably connected inside the top plate 51, the first clamping rod 54 is connected to the drive block 53, and both the first clamping rod 54 and the second clamping rod 55 are provided with V-shaped grooves 56. The V-shaped grooves 56 do not completely penetrate the first clamping rod 54 and the second clamping rod 55 from top to bottom.

[0026] Specifically, in this embodiment, the first slider 64 is connected to the bottom end of the first clamping rod 54 and slidably connected within the top plate 51; the first rack 61 is connected to the bottom end of the first slider 64; the second slider 65 is connected to the bottom end of the second clamping rod 55 and slidably connected within the top plate 51; the second rack 62 is connected to the bottom end of the second slider 65; and the gear 63 is rotatably connected to the bottom end of the top plate 51 and meshes between the first rack 61 and the second rack 62.

[0027] Working principle: In use, the mechanical seal blank is placed in the V-groove 56 of the first clamping rod 54 and the second clamping rod 55. The third electric telescopic rod 52 is driven, and the first clamping rod 54 moves towards the second clamping rod 55 via the drive block 53. At the same time, the first rack 61 moves synchronously in the same direction via the first slider 64, causing the gear 63 to mesh and rotate. This causes the second rack 62 to move in the opposite direction to the first rack 61. Through the connection of the second slider 65, the second clamping rod 55 moves towards the first clamping rod 54, thereby clamping and fixing the outer wall of the mechanical seal. After the inner hole is machined, the first electric telescopic rod 2 is driven, and the inner support mechanism 3 rises until the support rod 38 is inserted into the machined inner hole of the mechanical seal. The first electric telescopic rod 2 is closed, and the second electric telescopic rod 34 is driven, and the connecting block 35 rises in height. Through the rotation connection of the rotating rod 36, several limiting blocks 37 are moved away from each other, thereby driving the support rod 38 to move towards the inner wall of the mechanical seal until the support rod 38 fixes the mechanical seal. The third electric telescopic rod 52 is driven, so that the first clamping rod 54 and the second clamping rod 55 are moved away from each other, providing sufficient machining space for the outer wall machining of the mechanical seal.

[0028] Specifically, in this embodiment, protrusions 39 are provided on both sides of the limiting block 37. The protrusions 39 are slidably connected inside the second support plate 33 to prevent the limiting block 37 from separating from the second support plate 33.

[0029] Specifically, in this embodiment, a first groove 57 is provided on the top plate 51, and the drive block 53 is slidably connected in the first groove 57, providing the drive block 53 with sliding space and connection space.

[0030] Specifically, in this embodiment, two second slide grooves 58 are provided on the top plate 51, and the first slider 64 and the second slider 65 are slidably connected in the corresponding second slide grooves 58, providing sliding space and connection space for the first slider 64 and the second slider 65.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An adjustable clamping fixture for machining mechanical seals, comprising a base (1), characterized in that: The base (1) is provided with a first electric telescopic rod (2), and the first electric telescopic rod (2) is provided with an inner support mechanism (3). The inner support mechanism (3) is composed of a first support plate (31), a connecting rod (32), a second support plate (33), a second electric telescopic rod (34), a connecting block (35), a rotating rod (36), a limiting block (37), and a support rod (38). The base (1) is provided with two columns (4), and the top of the two columns (4) is provided with a clamping mechanism (5). The clamping mechanism (5) includes a top plate (51), a third electric telescopic rod (52), a driving block (53), a first clamping rod (54), a second clamping rod (55), and a linkage mechanism (6). The linkage mechanism (6) is composed of a first rack (61), a second rack (62), a gear (63), a first slider (64), and a second slider (65).

2. The adjustable clamping fixture for machining mechanical seals according to claim 1, characterized in that: The first tray (31) is connected to the telescopic shaft of the first electric telescopic rod (2), the connecting rod (32) is connected to the first tray (31), the second tray (33) is connected to the connecting rod (32), the second electric telescopic rod (34) is set on the first tray (31), the connecting block (35) is set on the telescopic shaft of the second electric telescopic rod (34), one end of the rotating rod (36) is rotatably connected to the connecting block (35), and the other end is rotatably connected to the limiting block (37). The limiting block (37) is slidably connected inside the second tray (33), and the support rod (38) is connected to the limiting block (37).

3. The adjustable clamping fixture for machining mechanical seals according to claim 1, characterized in that: The top plate (51) is connected to the column (4), the third electric telescopic rod (52) is set on the bottom end of the top plate (51), the drive block (53) is connected to the telescopic shaft of the third electric telescopic rod (52) and is slidably connected in the top plate (51), the first clamping rod (54) is connected to the drive block (53), and V-shaped grooves (56) are opened on the first clamping rod (54) and the second clamping rod (55). The V-shaped grooves (56) do not completely penetrate the first clamping rod (54) and the second clamping rod (55) from top to bottom.

4. The adjustable clamping fixture for machining mechanical seals according to claim 1, characterized in that: The first slider (64) is connected to the bottom end of the first clamping rod (54) and is slidably connected in the top plate (51). The first rack (61) is connected to the bottom end of the first slider (64). The second slider (65) is connected to the bottom end of the second clamping rod (55) and is slidably connected in the top plate (51). The second rack (62) is connected to the bottom end of the second slider (65). The gear (63) is rotatably connected to the bottom end of the top plate (51) and meshes between the first rack (61) and the second rack (62).

5. The adjustable clamping fixture for machining mechanical seals according to claim 1, characterized in that: Both sides of the limiting block (37) are provided with protrusions (39), and the protrusions (39) are slidably connected in the second support plate (33).

6. The adjustable clamping fixture for machining mechanical seals according to claim 1, characterized in that: The top plate (51) is provided with a first groove (57), and the drive block (53) is slidably connected in the first groove (57).

7. The adjustable clamping fixture for machining mechanical seals according to claim 1, characterized in that: Two second slide grooves (58) are provided on the top plate (51), and the first slider (64) and the second slider (65) are slidably connected in the corresponding second slide grooves (58).

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