O-ring cutting device

Abstract

The utility model discloses an O type sealing washer cutting device belongs to cutting technical field, including bottom plate and be located on the mounting groove, fastening assembly and blade subassembly of bottom plate, the mounting groove is used for placing the O type sealing washer of cutting and is equipped with cutting position on the mounting groove, the fastening assembly is used for fastening the O type sealing washer placed in the mounting groove, the blade subassembly acts on cutting position to cut the O type sealing washer placed in the mounting groove, the utility model provides an O type sealing washer cutting device can effectively solve the problem that the notch quality is poor, the adaptation is deficient, the operation efficiency is low and the sealing washer is easily damaged of traditional manual cutting exists.

Description

Technical Field

[0001] This utility model relates to the field of cutting technology, specifically to an O-ring cutting device. Background Technology

[0002] O-rings are key components for achieving static or dynamic sealing in industrial fields, and their sealing performance directly affects the operational stability and safety of equipment. In the processing, manufacturing, installation, and maintenance of O-rings, precise cutting is the core process to ensure their sealing effect. The quality of the cutting not only affects the matching degree between the O-ring and the sealing groove but also has a decisive impact on the tightness of the sealing surface.

[0003] Currently, the cutting of O-rings in the industry largely relies on traditional manual methods, primarily using tools such as scissors and utility knives. However, this method has revealed numerous problems in practical applications:

[0004] First, the quality of the cut is difficult to guarantee. During manual cutting, the operator's stability of force and control of the cutting angle are subject to subjective differences, which can easily lead to problems such as skewed cuts, burrs, and unevenness. Such defects will directly affect the sealing effect after the sealing ring is assembled, and may even require rework of unqualified products or even outright scrapping, significantly increasing material waste and production costs.

[0005] Secondly, there is insufficient adaptability. O-rings come in various specifications, and different applications often require products of different diameters. Traditional manual cutting lacks dedicated positioning structures for different diameter O-rings, requiring operators to manually adjust and fix the position, making it difficult to ensure concentricity between the cutting position and the center of the O-ring. Concentricity deviations lead to asymmetrical cross-sections of the cut O-ring, further increasing the risk of seal failure after assembly.

[0006] Third, the operation is inefficient. The centering and fixing process before manual cutting is cumbersome. Operators need to repeatedly adjust the position of the sealing ring to reduce errors. Especially in batch processing scenarios, this operation mode will significantly prolong working time and reduce production efficiency.

[0007] Fourth, it can easily damage the sealing ring. When manually fixing the sealing ring, it is difficult to achieve uniform force. Over-tightening or excessive local force can easily cause deformation or surface scratches on the sealing ring. These damages will destroy the structural integrity of the sealing material and reduce its sealing performance and service life.

[0008] Therefore, designing a specialized device capable of efficient and non-destructive cutting to meet the precise cutting requirements of O-rings of different diameters is key to overcoming the shortcomings of existing technologies and improving the processing quality of O-rings. Utility Model Content

[0009] To address the problems existing in the prior art, this utility model provides an O-ring cutting device, aiming to solve the problems of poor cut quality, insufficient adaptability, low operating efficiency, and easy damage to the O-ring caused by traditional manual cutting. To achieve the above objectives, this utility model provides the following technical solution:

[0010] An O-ring cutting device includes a base plate and a mounting groove, a fastening assembly, and a blade assembly disposed on the base plate; the mounting groove is used to place the O-ring to be cut and has a cutting position; the fastening assembly is used to fasten the O-ring placed in the mounting groove; the blade assembly acts on the cutting position to cut the O-ring placed in the mounting groove.

[0011] Furthermore, the mounting groove includes two semi-circular grooves of equal size, and the semi-circular grooves are provided with cutting positions; the mounting groove is detachably connected to the base plate.

[0012] Furthermore, the base plate is provided with a slot extending in the left and right directions; the mounting slot fits into the slot, and the movement of the mounting slot is limited to sliding in the left and right directions.

[0013] Furthermore, a flexible rubber layer is attached to the interior of the semi-circular groove.

[0014] Furthermore, the fastening components are configured in two sets, with the two sets of fastening components located on the left and right sides of the cutting position, respectively. Each fastening component includes an elastic belt and a fixing buckle. Each fixing buckle includes a male buckle and a female buckle. The male buckle has a protrusion, and the female buckle has a groove that matches the protrusion. One of the male buckle and the female buckle is located on the elastic belt, and the other is located on the base plate. The male buckle and the female buckle are positioned opposite each other and are located on the front and rear sides of the mounting groove, respectively.

[0015] Furthermore, the inner side of the elastic belt is provided with a flexible silicone layer.

[0016] Furthermore, the blade assembly includes a blade and a mounting base; the mounting base is disposed on the base plate and is rotatable relative to the base plate; the blade is movably connected to the mounting base, and the blade is detachably connected to the mounting base.

[0017] Furthermore, the blade is provided with a bolt through hole, and the mounting base is provided with a threaded hole at the corresponding position. The fastening bolt passes through the bolt through hole of the blade and is threadedly connected to the threaded hole of the mounting base.

[0018] Furthermore, the base plate is provided with a centering reference ruler, which is a long strip structure and is set along the length direction of the mounting groove; the zero mark of the centering reference ruler corresponds to the cutting position of the mounting groove and the middle position of the mounting base; the centering reference ruler has millimeter-level graduations symmetrically distributed on the left and right sides.

[0019] Furthermore, the base plate is provided with fixing holes.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model achieves precise positioning of the O-ring by setting a centering reference ruler. Combined with a stable vertical cutting action, it can effectively avoid the problems of skewed and uneven cuts caused by unstable force and angle deviation during manual cutting, greatly reducing dimensional errors and ensuring that the cut of the sealing ring is smooth and flat after cutting. This improves the sealing performance of the sealing ring after assembly, reduces rework and scrap caused by cutting quality problems, and lowers material costs.

[0022] 2. This utility model features replaceable mounting slots of various specifications, which can cover O-rings of various diameters. It eliminates the need for complex manual adjustments and fixation for O-rings of different diameters, flexibly meeting diverse cutting needs. It effectively solves the problem of insufficient adaptability of traditional manual cutting, and improves the versatility and practicality of the equipment.

[0023] 3. This utility model adopts an elastic belt fastening device. Its flexible contact design can make the sealing ring evenly stressed, avoiding the deformation of the sealing ring caused by uneven stress during traditional manual fastening. At the same time, it reduces unnecessary contact between the cutting tool and the surface of the sealing ring, preventing surface scratches, thereby ensuring the performance and structural integrity of the sealing material and ensuring that the sealing performance of the sealing ring is not affected.

[0024] 4. The blade assembly of this utility model is rotatable and adjustable, the mounting base is rotatable, and the process of replacing the mounting slot and blade is convenient. It simplifies the tedious centering, fixing and tool adjustment process in traditional manual cutting, significantly shortens the single cycle operation time, and can effectively improve the overall work efficiency, especially in batch cutting scenarios.

[0025] 5. The replaceable blade design of this utility model extends the service life of the tool and avoids the need to replace the entire tool due to blade wear; at the same time, the mounting groove and belt are easy to maintain, reducing the maintenance cost of the equipment, thereby reducing the long-term use cost and improving the economy of the equipment. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of this utility model.

[0027] The attached diagram is labeled as follows: 1. Base plate; 2. Mounting groove; 3. Cutting position; 4. Elastic belt; 5. Male buckle; 6. Female buckle; 7. Blade; 8. Mounting base; 9. Fastening bolt; 10. Centering reference ruler; 11. Fixing hole. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0031] In the description of this utility model, "multiple" means two or more.

[0032] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0033] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Example 1

[0036] See attached Figure 1 This embodiment provides an O-ring cutting device, including a base plate 1, a mounting groove 2, a fastening assembly, and a blade assembly 7 disposed on the base plate 1. The mounting groove 2 is used to place the O-ring to be cut, and a cutting position 3 is provided on the mounting groove 2. The fastening assembly is used to fasten the O-ring placed in the mounting groove 2 to prevent displacement during cutting. The blade assembly 7 acts on the cutting position 3 to cut the O-ring placed in the mounting groove 2.

[0037] Specifically, the mounting groove 2 includes two semi-circular grooves of equal size. Each semi-circular groove has a cutting position 3, which is a narrow slit perpendicular to the axial direction of the semi-circular groove, allowing the blade 7 to pass through and complete the cut. The mounting groove 2 is detachably connected to the base plate 1, for example, by bolts or snap-fit. When it is necessary to cut O-rings of different diameters, the mounting groove 2 of the corresponding specification can be quickly replaced. In this embodiment, the mounting groove 2 is defined to extend in the left-right direction. The base plate 1 has a slot extending in the left-right direction. The mounting groove 2 fits into the slot, and the movement of the mounting groove 2 is limited to sliding in the left-right direction. At the same time, a flexible rubber layer is attached to the semi-circular groove. The flexible rubber layer is soft and can not only avoid damage caused by hard contact between the O-ring and the groove, but also increase the friction between the seal and the groove, further preventing displacement.

[0038] Specifically, the fastening components are set to two sets, located on the left and right sides of the cutting position 3 respectively, to fasten the O-ring seal from both sides, ensuring a secure fastening effect. The fastening components include an elastic belt 4 and a fixing clip. The fixing clip includes a male clip 5 and a female clip 6. The male clip 5 has a protrusion, and the female clip 6 has a groove that matches the protrusion. One of the male clip 5 and the female clip 6 is located on the elastic belt 4, and the other is located on the base plate 1. The male clip 5 and the female clip 6 are positioned correspondingly and are located on the front and rear sides of the mounting groove 2 respectively. Figure 1 As shown, in this embodiment, the male buckle 5 is mounted on the elastic belt 4, and the female buckle 6 is mounted on the base plate 1. When it is necessary to tighten the O-ring, the elastic belt 4 is wrapped around the O-ring, so that the protrusion of the male buckle 5 is engaged in the groove of the female buckle 6, thereby achieving tightening. In addition, a flexible silicone layer is provided on the inner side of the elastic belt 4. When the flexible silicone layer contacts the O-ring, it can increase the contact area to make the tightening force more uniform, and also avoid damaging the surface of the sealing ring.

[0039] Specifically, the blade 7 assembly includes a blade 7 and a mounting base 8. The mounting base 8 is mounted on the base plate 1 and can rotate relative to the base plate 1. Its rotation structure is as follows: the bottom of the mounting base 8 has a rotating shaft, and the base plate 1 has a shaft hole adapted to the rotating shaft. The rotating shaft is embedded in the shaft hole and can rotate around the central axis of the shaft hole, achieving 360° rotation of the mounting base 8 relative to the base plate 1, facilitating adjustment of the cutting angle of the blade 7. The blade 7 is movably connected to the mounting base 8, and the blade 7 and the mounting base 8 are detachably connected. Specifically, the detachable connection structure is as follows: the blade 7 has a bolt through hole, and the mounting base 8 has a corresponding threaded hole. A fastening bolt 9 passes through the bolt through hole of the blade 7 and is threadedly connected to the threaded hole of the mounting base 8. By tightening or loosening the fastening bolt 9, the blade 7 can be installed and removed, facilitating the replacement of blades 7 with different cutting edge shapes and sharpness to accommodate O-rings of different materials.

[0040] The base plate 1 is also equipped with a centering reference ruler 10, which is a long strip structure set along the length of the mounting groove 2. Its zero mark corresponds to the cutting position 3 of the mounting groove 2 and the middle position of the mounting base 8, and millimeter-level graduations are symmetrically distributed on both sides. After placing the O-ring seal, the operator can accurately locate the cutting point according to the graduations of the centering reference ruler 10, ensuring the accuracy of the cutting position 3. In addition, the base plate 1 is provided with fixing holes 11, which can be used to fix the base plate 1 to the workbench with bolts or other connecting parts, enhancing the stability during operation.

[0041] In practical use, the working process of the O-ring cutting device is as follows:

[0042] 1. Preparation Stage: First, fix the base plate 1 of the entire device to the workbench using bolts and other connectors to prevent the tool from shaking or shifting during cutting, further ensuring operational stability and safety. Then, the operator rotates the mounting base 8 of the blade 7 assembly to a position parallel to the mounting groove 2, ensuring that there are no obstructions above the mounting groove 2 for subsequent operations. Next, measure the diameter of the O-ring to be cut and select a matching mounting groove 2 based on the measurement results. Since the mounting groove 2 is detachably connected to the base plate 1, and the base plate 1 has slots extending left and right, the original mounting groove 2 can be removed from the slots and replaced with a mounting groove 2 of the corresponding specification. The new mounting groove 2 is then fitted into the slot, completing the preparation work.

[0043] 2. Positioning and Fixing Stage: Place the O-ring into the two semi-circular grooves of the mounting groove 2. Using the centering reference ruler 10 on the base plate 1 as a benchmark, adjust the position of the O-ring so that the cutting mark line on the O-ring aligns with the zero mark line of the centering reference ruler 10 and the cutting position 3 of the mounting groove 2, ensuring that the cutting position 3 is centered. Then, operate the two sets of fastening components, wrapping the elastic belt 4 around the O-ring so that the male buckle 5 or female buckle 6 on the elastic belt 4 corresponds to the female buckle 6 or male buckle 5 on the base plate 1. Engage the protrusion on the male buckle 5 into the groove on the female buckle 6, and tighten the elastic belt 4. Because the inner side of the elastic belt 4 has a flexible silicone layer, it can evenly fasten the O-ring in the mounting groove 2 through flexible contact, and the belt tension is evenly distributed, preventing deformation or surface scratches of the O-ring.

[0044] 3. Cutting Stage: Rotate the mounting base 8 of the blade 7 assembly to move the blade 7 from a position parallel to the mounting groove 2 to the central cutting position 3, precisely aligning the blade 7 with the cutting mark line on the O-ring. The operator applies downward pressure, causing the blade 7 to pass through the cutting position 3 on the mounting groove 2 and cut the O-ring vertically. Because the blade 7 is sharp and securely mounted on the mounting base 8 by the fastening bolts 9, the force is stable, ensuring a clean, burr-free cut.

[0045] 4. Completion Stage: After cutting, separate the male buckle 5 from the female buckle 6, loosen the elastic belt 4, and remove the cut O-ring from the mounting groove 2. If it is necessary to cut O-rings of different specifications continuously, repeat the above process of "replacing mounting groove 2 - positioning - tightening - cutting".

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. An O-ring cutting device, characterized in that: It includes a base plate (1) and a mounting groove (2), a fastening assembly and a blade assembly provided on the base plate (1); the mounting groove (2) is used to place the O-ring to be cut and the mounting groove (2) is provided with a cutting position (3); the fastening assembly is used to fasten the O-ring placed in the mounting groove (2); the blade assembly acts on the cutting position (3) to cut the O-ring placed in the mounting groove (2).

2. The O-ring cutting device according to claim 1, characterized in that: The mounting groove (2) includes two semi-circular grooves of equal size, and the semi-circular grooves are provided with cutting positions (3); the mounting groove (2) is detachably connected to the base plate (1).

3. The O-ring cutting device of claim 2, wherein: The base plate (1) is provided with a slot extending in the left and right directions; the mounting slot (2) is fitted in the slot and the movement of the mounting slot (2) is limited to sliding in the left and right directions.

4. The O-ring cutting device of claim 2, wherein: A flexible rubber layer is attached to the body of the semi-circular groove.

5. The O-ring cutting device of claim 1, wherein: The fastening components are set to two sets, and the two sets of fastening components are respectively located on the left and right sides of the cutting position (3); the fastening components include an elastic belt (4) and a fixing buckle; the fixing buckle includes a male buckle (5) and a female buckle (6), the male buckle (5) is provided with a protrusion, and the female buckle (6) is provided with a groove that matches the protrusion; one of the male buckle (5) and the female buckle (6) is located on the elastic belt (4), and the other is located on the base plate (1). The male buckle (5) and the female buckle (6) are positioned opposite each other and are respectively located on the front and rear sides of the mounting groove (2).

6. The O-ring cutting device of claim 5, wherein: The elastic belt (4) has a flexible silicone layer on its inner side.

7. The O-ring cutting device of claim 1, wherein: The blade assembly includes a blade (7) and a mounting base (8); the mounting base (8) is disposed on the base plate (1) and is rotatable relative to the base plate (1); the blade (7) is movably connected to the mounting base (8), and the blade (7) is detachably connected to the mounting base (8).

8. The O-ring cutting device of claim 7, wherein: The blade (7) is provided with a bolt through hole, and the mounting base (8) is provided with a threaded hole at the corresponding position. The fastening bolt (9) passes through the bolt through hole of the blade (7) and is threadedly connected to the threaded hole of the mounting base (8).

9. The O-ring cutting device of claim 7, wherein: The base plate (1) is provided with a centering reference ruler (10), which is a long strip structure and is set along the length direction of the mounting groove (2); the zero mark of the centering reference ruler (10) corresponds to the cutting position (3) of the mounting groove (2) and the middle position of the mounting base (8); the centering reference ruler (10) has millimeter-level graduations symmetrically distributed on the left and right sides.

10. The O-ring cutting device of claim 1, wherein: The base plate (1) is provided with fixing holes (11).

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