Sealing element assembling clamp

Abstract

The invention relates to the technical field of sealing element machining, in particular to a sealing element assembling clamp which comprises a base, a mounting seat, a first moving mechanism, a second moving mechanism, a first limiting mechanism and a second limiting mechanism. A limiting surface is formed on the base; the mounting seat is connected with the base, and a limiting groove is formed between the limiting surface and the mounting seat; the first moving mechanism and the second moving mechanism are both arranged on the mounting seat; the first limiting mechanism and the second limiting mechanism are both connected with the first moving mechanism, and the first limiting mechanism and the second limiting mechanism are both connected with the second moving mechanism. According to the sealing element assembling clamp, the mode of manually installing the sealing element is replaced, through arrangement of the limiting grooves, the sealing element machining consistency is guaranteed, the sealing element assembling efficiency is improved, the sealing element assembling clamp can be integrally placed in a cylinder barrel, and assembling is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of sealing component processing, and in particular to a sealing component assembly fixture. Background Art

[0002] Rubber-plastic combination seals are generally composed of a preload ring made of rubber material and a wear ring made of plastic material. Due to their good wear resistance, simple structure and high reliability, sliding ring combination seals are widely used in reciprocating sealing occasions. According to the location of the sealing surface, the sealing ring can be divided into two types: shaft and hole. The shaft seal is generally installed in the ring groove inside the cylinder or hole. The rubber material is soft, so the preload ring is simple to install. The plastic material will produce plastic deformation, so the wear ring is more complicated to install. The installation of the shaft combination seal ring is divided into two methods: press-in installation and manual installation. For seal rings with more complex cross-sectional shapes (such as VL seal rings), the press-in installation method will damage the structure. Such seal rings are generally installed manually, that is, the plastic material is manually squeezed to deform it into a "U"-shaped structure for assembly. Manual installation has a certain degree of flexibility, but there are problems such as randomization, experience, poor consistency, low assembly efficiency, and inconvenient assembly of small-sized seal rings. Summary of the invention

[0003] The invention provides a sealing component assembly fixture, which is used to solve the defects of poor consistency, low assembly efficiency and inconvenience in assembly of sealing rings with complex cross-sectional shapes in the prior art by manual installation.

[0004] The present invention provides a sealing component assembly fixture, comprising: A base, a finite surface is formed on the base; A mounting seat connected to the base, and a limiting groove for limiting the position of the sealing member to be processed is formed between the limiting surface and the mounting seat; The first moving mechanism and the second moving mechanism are both arranged on the mounting seat; A first limiting mechanism and a second limiting mechanism, wherein the first limiting mechanism and the second limiting mechanism are both connected to the first moving mechanism, and the first limiting mechanism and the second limiting mechanism are both connected to the second moving mechanism; Driven by the second moving mechanism, the first limiting mechanism and the second limiting mechanism move in opposite directions, so that the first limiting mechanism or the second limiting mechanism approaches the limiting groove and contacts the sealing member to be processed; Driven by the first moving mechanism, the first limiting mechanism and / or the second limiting mechanism is pressed toward the inside of the sealing component to be processed or toward the outside of the sealing component to be processed.

[0005] According to the seal assembly fixture provided by the present invention, the limiting surface is a U-shaped limiting surface provided on the base, and a U-shaped limiting groove for limiting the seal to be processed is formed between the U-shaped limiting surface and the mounting seat; Driven by the first moving mechanism, the first limiting mechanism and / or the second limiting mechanism moves toward the inner side of the U-shaped limiting groove or moves toward the outer side of the U-shaped limiting groove.

[0006] According to the seal assembly fixture provided by the present invention, the first moving mechanism comprises: A first rotating handle, rotatably disposed on the mounting seat; A first transmission unit, one end of which is connected to the first rotating handle; A connecting block is connected to the other end of the first transmission unit, and the second moving mechanism, the first limiting mechanism and the second limiting mechanism are all arranged on the connecting block.

[0007] According to the seal assembly fixture provided by the present invention, the connecting block is formed with a first slideway and a second slideway extending toward the limiting groove, the first limiting mechanism is slidably disposed on the first slideway, and the second limiting mechanism is slidably disposed on the second slideway.

[0008] According to the seal assembly fixture provided by the present invention, the first transmission unit comprises: A first rotating handle, rotatably disposed on the mounting seat; A first gear, sleeved on the first rotating handle; The first rack is arranged on the connecting block and connected with the first gear.

[0009] According to the seal assembly fixture provided by the present invention, the first moving mechanism also includes: a locking piece; a plurality of first limiting holes arranged in a ring shape with the first rotating handle as the center are formed on the mounting seat, and a second limiting hole is formed on the first rotating handle, and the locking piece can pass through the first limiting hole and the second limiting hole in sequence to lock the first rotating handle.

[0010] According to the seal assembly fixture provided by the present invention, a first groove is formed on the outer wall of the mounting seat, and the second moving mechanism is movably disposed in the first groove; a second groove is formed inside the mounting seat, and the connecting block is movably disposed in the second groove.

[0011] According to the seal assembly fixture provided by the present invention, the second moving mechanism comprises: A second rotating handle, rotatably disposed on the mounting seat; The second transmission unit has one end connected to the second rotating handle, and the other end connected to the first limiting mechanism and the second limiting mechanism respectively.

[0012] According to the seal assembly fixture provided by the present invention, the second transmission unit comprises: A second gear, sleeved on one end of the second rotating handle; A second rack extending toward the limiting groove and connected to one side of the second gear, wherein the first limiting mechanism is disposed on the second rack; The third rack extends toward the limiting groove and is connected to the other side of the second gear. The second limiting mechanism is arranged on the third rack.

[0013] The sealing component assembly fixture provided according to the present invention further includes: a limiting plate, which is arranged on the outer wall of the mounting seat to limit the mounting seat to be installed in the cylinder.

[0014] The present invention provides a seal assembly fixture, which includes: a base, a mounting seat, a first moving mechanism, a second moving mechanism, a first limiting mechanism and a second limiting mechanism. A limiting surface is formed on the base; the mounting seat is connected to the base, and a limiting groove for limiting the seal to be processed is formed between the limiting surface and the mounting seat; the first moving mechanism and the second moving mechanism are both arranged on the mounting seat; the first limiting mechanism and the second limiting mechanism are both connected to the first moving mechanism, and the first limiting mechanism and the second limiting mechanism are both connected to the second moving mechanism. Driven by the second moving mechanism, the first limiting mechanism and the second limiting mechanism move in opposite directions so that the first limiting mechanism or the second limiting mechanism is close to the limiting groove and contacts the seal to be processed; driven by the first moving mechanism, the first limiting mechanism and / or the second limiting mechanism squeezes toward the inside of the seal to be processed or squeezes toward the outside of the seal to be processed. The seal assembly fixture provided by the present invention replaces the manual installation method of the seal, and through the arrangement of the limiting groove, the consistency of the seal processing is ensured, and the assembly efficiency of the seal is improved. The seal assembly fixture can be placed in the cylinder as a whole through the seal assembly fixture, and the assembly is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of a sealing assembly fixture provided in one embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the first moving mechanism, the second moving mechanism, the first limiting mechanism and the second limiting mechanism provided in one embodiment of the present invention.

[0018] Figure 3 It is a structural schematic diagram of a connecting block and a second moving mechanism provided in one embodiment of the present invention.

[0019] Figure 4 It is a cross-sectional schematic diagram of a connection block provided in one embodiment of the present invention.

[0020] Figure 5 It is a schematic structural diagram of a first seat body provided in one embodiment of the present invention.

[0021] Reference numerals: 1. Base; 11: Limiting surface; 21. First seat body; 22: Second seat body; 23: First limiting hole; 24: First groove; 25: Second groove; 31. First rotating handle; 32: First gear; 33: First rack; 34: Connecting block; 35: First slideway; 36: Second slideway; 41: Second rotating handle; 42: Second gear; 43: Second rack; 44: Third rack; 5: Locking piece; 6: Limiting plate; 7: Limiting groove; 8: First limiting mechanism; 9: Second limiting mechanism. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Combine the following Figure 1-Figure 5 The present invention describes a sealing assembly fixture, which comprises a base 1 , a mounting seat, a first moving mechanism, a second moving mechanism, a first limiting mechanism 8 and a second limiting mechanism 9 .

[0028] Among them, a limiting surface 11 is formed on the base 1; the mounting seat is connected to the base 1, and a limiting groove 7 for limiting the sealing member to be processed is formed between the limiting surface 11 and the mounting seat; the first moving mechanism and the second moving mechanism are both arranged on the mounting seat; the first limiting mechanism 8 and the second limiting mechanism 9 are both connected to the first moving mechanism, and the first limiting mechanism 8 and the second limiting mechanism 9 are both connected to the second moving mechanism.

[0029] Specifically, the shape of the limiting surface 11 on the base 1 determines the shape of the seal to be processed, and a limiting groove 7 is formed between the limiting surface 11 and the mounting seat. Before the processing starts, the seal to be processed is inserted into the limiting groove 7. It can be understood that the diameter of the seal to be processed should be larger than the limiting groove 7, the first moving mechanism and the second moving mechanism can move on the mounting seat, and the first limiting mechanism 8 and the second limiting mechanism 9 are both connected to the first moving mechanism and the second moving mechanism.

[0030] Driven by the second moving mechanism, the first limiting mechanism 8 and the second limiting mechanism 9 move in opposite directions so that the first limiting mechanism 8 or the second limiting mechanism 9 is close to the limiting groove 7 and contacts the seal to be processed; driven by the first moving mechanism, the first limiting mechanism 8 and / or the second limiting mechanism 9 is squeezed toward the inside of the seal to be processed or squeezed toward the outside of the seal to be processed.

[0031] Specifically, the moving direction of the second moving mechanism is the vertical direction toward or away from the seal to be processed, and its function is to drive the first limiting mechanism 8 and the second limiting mechanism 9 to move in opposite directions, so that when the first limiting mechanism 8 is close to the limiting groove 7 and contacts the seal to be processed, the second limiting mechanism 9 is away from the limiting groove 7 and does not contact the seal to be processed; when the second limiting mechanism 9 is close to the limiting groove 7 and contacts the seal to be processed, the first limiting mechanism 8 is away from the limiting groove 7 and does not contact the seal to be processed. In other words, during the processing, only one limiting mechanism processes the seal to be processed.

[0032] The moving direction of the first moving mechanism is a horizontal direction toward the inside or outside of the seal to be processed, and its function is to drive the first limiting mechanism 8 and the second limiting mechanism 9 to squeeze the seal to be processed inward, so that the seal to be processed changes from a circular shape to a specific shape, or drive the first limiting mechanism 8 and the second limiting mechanism 9 to squeeze the seal to be processed outward, so that the seal to be processed returns from a specific shape to a circle.

[0033] It can be understood that the first limiting mechanism 8 and the second limiting mechanism 9 are arranged inside and outside respectively, and a baffle structure can be adopted, wherein the baffle located inside is used to expand the inside of the seal to be processed to restore it to a circular shape, and the baffle located outside is used to squeeze the outside of the seal to be processed to change its shape from a circular shape to a specific shape. Generally, a circular seal is used in the processing process, and the baffle is used to squeeze the seal toward the center of the circle (i.e., the inside direction) to make it deform into a U shape; the baffle is used to expand the groove structure of the U-shaped seal away from the center of the circle (i.e., the outside direction) to restore it to a circular shape.

[0034] In summary, the function of the second moving mechanism is to switch the first limiting mechanism 8 and the second limiting mechanism 9 to move them to the working position to process the seal to be processed; the function of the first moving mechanism is to control the first limiting mechanism 8 and the second limiting mechanism 9 to move inward or outward, so as to deform the seal by applying external force; the first limiting mechanism 8 and the second limiting mechanism 9 serve as the actuator for seal processing, applying external force to the seal, so that it is processed into a seal of a specific shape.

[0035] like Figure 1 and Figure 2 In the structure shown, the seal assembly fixture can be used in the case of processing an O-shaped plastic seal ring into a U-shaped plastic seal ring, and can also be used in the case of restoring a U-shaped plastic seal ring into an O-shaped plastic seal ring.

[0036] The present invention provides a seal assembly fixture, which includes: a base 1, a mounting seat, a first moving mechanism, a second moving mechanism, a first limiting mechanism 8, and a second limiting mechanism 9. A limiting surface 11 is formed on the base 1; the mounting seat is connected to the base 1, and a limiting groove 7 for limiting the seal to be processed is formed between the limiting surface 11 and the mounting seat; the first moving mechanism and the second moving mechanism are both arranged on the mounting seat; the first limiting mechanism 8 and the second limiting mechanism 9 are both connected to the first moving mechanism, and the first limiting mechanism 8 and the second limiting mechanism 9 are both connected to the second moving mechanism. Driven by the second moving mechanism, the first limiting mechanism 8 and the second limiting mechanism 9 move in opposite directions so that the first limiting mechanism 8 or the second limiting mechanism 9 is close to the limiting groove 7 and contacts the seal to be processed; driven by the first moving mechanism, the first limiting mechanism 8 and / or the second limiting mechanism 9 are squeezed toward the inside of the seal to be processed or squeezed toward the outside of the seal to be processed. The seal assembly fixture provided by the present invention replaces the manual installation method of the seal, ensures the consistency of seal processing through the arrangement of the limit groove 7, and improves the assembly efficiency of the seal. The seal assembly fixture can be placed in the cylinder as a whole, which is convenient for assembly.

[0037] In one embodiment of the present invention, the limiting surface 11 is a U-shaped limiting surface provided on the base 1, and a U-shaped limiting groove for limiting the sealing member to be processed is formed between the U-shaped limiting surface and the mounting seat; driven by the first moving mechanism, the first limiting mechanism 8 and / or the second limiting mechanism 9 moves toward the inside of the U-shaped limiting groove or moves toward the outside of the U-shaped limiting groove. Figure 1 and Figure 2In the structure shown, a U-shaped limiting surface is processed on the base 1 to provide a limit for the processing of the seal. The mounting seat is installed on the U-shaped limiting surface, and the two form a U-shaped limiting groove. The O-shaped plastic sealing ring is sleeved on the outside of the U-shaped limiting groove. Driven by the first moving mechanism, the limiting mechanism can move toward the inner side of the groove structure of the U-shaped limiting groove, and squeeze the seal to form a U-shaped structure; similarly, driven by the first moving mechanism, the limiting mechanism can move toward the outer side of the U-shaped limiting groove, and open the seal of the U-shaped structure to restore it to an O-shaped structure. Of course, according to the shape of the seal that needs to be processed, the shape of the limiting surface 11 / limiting groove 7 can be designed and processed accordingly.

[0038] In one embodiment of the present invention, the first moving mechanism comprises: a first rotating handle 31, a first transmission unit and a connecting block 34. The first rotating handle 31 is rotatably arranged on the mounting seat; one end of the first transmission unit is connected to the first rotating handle 31; the connecting block 34 is connected to the other end of the first transmission unit, and the second moving mechanism, the first limiting mechanism 8 and the second limiting mechanism 9 are all arranged on the connecting block 34. In this embodiment, the first rotating handle 31 can be manually rotated to drive the connecting block 34 to move through the first transmission unit, thereby driving the second moving mechanism, the first limiting mechanism 8 and the second limiting mechanism 9 thereon to move synchronously with the connecting block 34. In this embodiment, through the design of the connecting block 34, the second moving mechanism, the first limiting mechanism 8 and the second limiting mechanism 9 are all installed on it, and rotating the first rotating handle 31 can drive the above three mechanisms to move simultaneously. Since the second moving mechanism can switch the working positions of the first limiting mechanism 8 and the second limiting mechanism 9, it is ensured that only one limiting mechanism acts on the sealing member.

[0039] In one embodiment of the present invention, a first slideway 35 and a second slideway 36 extending toward the limiting groove 7 are formed on the connection block 34, and the first limiting mechanism 8 is slidably disposed on the first slideway 35, and the second limiting mechanism 9 is slidably disposed on the second slideway 36. In this embodiment, by designing a slideway on the connection block 34, the moving direction of the limiting mechanism can be limited under the drive of the second moving mechanism to prevent it from deviating from the preset moving direction. Optionally, the connection block 34 is a hollow structure, and the first slideway 35 and the second slideway 36 are grooves formed on the inner wall of the connection block 34, respectively.

[0040] In one embodiment of the present invention, the first transmission unit includes: a first rotating handle 31, a first gear 32 and a first rack 33. The first rotating handle 31 is rotatably arranged on the mounting seat; the first gear 32 is sleeved on the first rotating handle 31; the first rack 33 is arranged on the connecting block 34 and connected to the first gear 32. Specifically, the first rack 33 is fixed on the connecting block 34, and through the engagement with the gear, the connecting block 34 is driven by the first rotating handle 31 to move in the horizontal direction.

[0041] In one embodiment of the present invention, the first moving mechanism further includes: a locking member 5; a plurality of first limiting holes 23 arranged in a ring shape with the first rotating handle 31 as the center are formed on the mounting seat, and a second limiting hole (not shown in the figure) is formed on the first rotating handle 31, and the locking member 5 can pass through the first limiting hole 23 and the second limiting hole in sequence to lock the first rotating handle 31. In this embodiment, in order to prevent the first moving mechanism from rotating when adjusting the second moving mechanism, limiting holes are respectively provided on the mounting seat and the first rotating handle 31, and the locking member 5 is passed through the corresponding limiting holes to lock the rotation position of the first rotating handle 31; when the first rotating handle 31 needs to be rotated, the locking member 5 is first taken out from the limiting hole.

[0042] In one embodiment of the present invention, a first groove 24 is formed on the outer wall of the mounting seat, and the second moving mechanism (the second rotating handle 41 in the mounting seat) is movably disposed in the first groove 24; a second groove 25 is formed inside the mounting seat, and the connecting block 34 is movably disposed in the second groove 25. Since the second moving mechanism will move horizontally under the drive of the connecting block 34, a first groove 24 for the second moving mechanism to move is processed on the mounting seat, and a second groove 25 for the connecting block 34 to move is processed in the mounting seat. The first groove 24 and the second groove 25 allow the above-mentioned movement needs on the one hand, and limit the above-mentioned movement direction on the other hand to avoid the movement from deviating from the preset direction. Preferably, the mounting seat is composed of two upper and lower seats (i.e., the first seat 21 at the bottom and the second seat 22 at the top), which is a hollow structure, the first groove 24 is on the outer wall of the second seat 22, and the second groove 25 is on the top plate of the first seat 21.

[0043] In one embodiment of the present invention, the second moving mechanism includes: a second rotating handle 41 and a second transmission unit. The second rotating handle 41 is rotatably disposed on the mounting seat; one end of the second transmission unit is connected to the second rotating handle 41, and the other end is respectively connected to the first limiting mechanism 8 and the second limiting mechanism 9. In this embodiment, the second rotating handle 41 can be manually rotated to drive the first limiting mechanism 8 and the second limiting mechanism 9 to move synchronously through the second transmission unit.

[0044] In one embodiment of the present invention, the second transmission unit includes: a second gear 42, a second rack 43 and a third rack 44. The second gear 42 is sleeved on one end of the second rotating handle 41; the second rack 43 extends in the direction of the limiting groove 7 and is connected to one side of the second gear 42, and the first limiting mechanism 8 is arranged on the second rack 43; the third rack 44 extends in the direction of the limiting groove 7 and is connected to the other side of the second gear 42, and the second limiting mechanism 9 is arranged on the third rack 44. In this embodiment, by arranging the second rack 43 and the third rack 44 on both sides of the second gear 42, when the second gear 42 rotates, the second rack 43 and the third rack 44 move in opposite directions respectively, thereby driving the first limiting mechanism 8 and the second limiting mechanism 9 connected to each other to move in opposite directions, ensuring that only one limiting mechanism processes the seal.

[0045] Preferably, the second rack 43 is slidably disposed in the first slideway 35 , and the moving direction of the second rack 43 is limited by the first slideway 35 ; the third rack 44 is slidably disposed in the second slideway 36 , and the moving direction of the third rack 44 is limited by the second slideway 36 .

[0046] In one embodiment of the present invention, the seal assembly fixture further comprises: a limit plate 6, which is arranged on the outer wall of the mounting seat so that the mounting seat is limitedly installed in the cylinder. Preferably, two arc-shaped limit plates 6 are installed on the outer wall of the mounting seat, and the mounting seat and the base 1 can be placed in the cylinder as a whole, and the protruding limit plates 6 limit the seal assembly fixture in the cylinder.

[0047] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed over multiple units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. Those of ordinary skill in the art may understand and implement the present invention without creative effort.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seal assembly fixture, characterized in that: include: A base (1), wherein a finite surface (11) is formed on the base (1); A mounting seat connected to the base (1), and having a limiting groove (7) formed between the limiting surface (11) and the mounting seat for limiting the position of the sealing member to be processed; The first moving mechanism and the second moving mechanism are both arranged on the mounting seat; a first limiting mechanism (8) and a second limiting mechanism (9), wherein the first limiting mechanism (8) and the second limiting mechanism (9) are both connected to the first moving mechanism, and the first limiting mechanism (8) and the second limiting mechanism (9) are both connected to the second moving mechanism; Driven by the second moving mechanism, the first limiting mechanism (8) and the second limiting mechanism (9) move in opposite directions, so that the first limiting mechanism (8) or the second limiting mechanism (9) is close to the limiting groove (7) and contacts the sealing component to be processed; Driven by the first moving mechanism, the first limiting mechanism (8) and / or the second limiting mechanism (9) is pressed toward the inside of the sealing component to be processed or toward the outside of the sealing component to be processed.

2. The seal assembly fixture according to claim 1, characterized in that: The limiting surface (11) is a U-shaped limiting surface provided on the base (1), and a U-shaped limiting groove for limiting the position of the sealing component to be processed is formed between the U-shaped limiting surface and the mounting seat; Driven by the first moving mechanism, the first limiting mechanism (8) and / or the second limiting mechanism (9) moves toward the inside of the U-shaped limiting groove or moves toward the outside of the U-shaped limiting groove.

3. The seal assembly fixture according to claim 1, characterized in that: The first moving mechanism comprises: A first rotating handle (31) rotatably disposed on the mounting seat; A first transmission unit, one end of which is connected to the first rotating handle (31); A connecting block (34) is connected to the other end of the first transmission unit, and the second moving mechanism, the first limiting mechanism (8) and the second limiting mechanism (9) are all arranged on the connecting block (34).

4. The seal assembly fixture according to claim 3, characterized in that: A first slideway (35) and a second slideway (36) extending in the direction of the limiting groove (7) are formed on the connecting block (34); the first limiting mechanism (8) is slidably disposed on the first slideway (35); and the second limiting mechanism (9) is slidably disposed on the second slideway (36).

5. The seal assembly fixture according to claim 3, characterized in that: The first transmission unit comprises: A first rotating handle (31) rotatably disposed on the mounting seat; A first gear (32) sleeved on the first rotating handle (31); The first rack (33) is arranged on the connecting block (34) and is connected to the first gear (32).

6. The seal assembly fixture according to claim 5, characterized in that: The first moving mechanism further comprises: a locking member (5); a plurality of first limiting holes (23) arranged in a ring shape with the first rotating handle (31) as the center are formed on the mounting seat, and a second limiting hole is formed on the first rotating handle (31), and the locking member (5) can pass through the first limiting hole (23) and the second limiting hole in sequence to lock the first rotating handle (31).

7. The seal assembly fixture according to claim 3, characterized in that: A first groove (24) is formed on the outer wall of the mounting seat, and the second moving mechanism is movably disposed in the first groove (24); a second groove (25) is formed inside the mounting seat, and the connecting block (34) is movably disposed in the second groove (25).

8. The seal assembly fixture according to claim 1, characterized in that: The second moving mechanism comprises: A second rotating handle (41) rotatably disposed on the mounting seat; A second transmission unit has one end connected to the second rotating handle (41), and the other end connected to the first limiting mechanism (8) and the second limiting mechanism (9) respectively.

9. The seal assembly fixture according to claim 8, characterized in that: The second transmission unit comprises: A second gear (42) sleeved on one end of the second rotating handle (41); A second rack (43) extending in the direction of the limiting groove (7) and connected to one side of the second gear (42); the first limiting mechanism (8) is arranged on the second rack (43); The third rack (44) extends in the direction of the limiting groove (7) and is connected to the other side of the second gear (42); the second limiting mechanism (9) is arranged on the third rack (44).

10. The seal assembly fixture according to any one of claims 1 to 9, characterized in that: Also includes: A limiting plate (6) is arranged on the outer wall of the mounting seat so as to limit the mounting seat to be installed in the cylinder.

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