A sealing ring cutting machining positioning assembly

Abstract

The utility model relates to the technical field of sealing ring processing, concretely to a sealing ring cutting processing positioning assembly, workstation, mounting seat and the positioning piece located above mounting seat, mounting seat rotates and is installed on the workstation, be equipped with quick detachable mechanism for installing positioning piece in the mounting seat, be equipped with three groups annular distribution's positioning rod on the mounting seat, be equipped with three groups annular distribution's positioning groove on the positioning piece, three groups positioning rod and positioning groove correspond to set, positioning rod passes through positioning groove and positioning piece swing joint, through rotating and installing mounting seat on the workstation, and setting up the quick detachable mechanism containing guide rail, adjusting frame, carousel, adjusting rod, gear ring and driving wheel in the mounting seat, the efficient, accurate dismounting of positioning piece has been realized. The corresponding joint design of three groups annular distribution's positioning rod and positioning groove not only simplifies the installation process of positioning piece, but also significantly improves the repeat positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring processing technology, specifically a sealing ring cutting and positioning component. Background Technology

[0002] As a fundamental and crucial fluid transmission and control component, the performance of sealing rings directly affects the sealing reliability, energy efficiency, and service life of the entire equipment system. With the continuous development of high-precision equipment manufacturing towards high reliability and green energy conservation, increasingly stringent requirements are being placed on the geometric accuracy, interface quality, and consistency of sealing rings. This makes the machining of sealing rings, especially their precision cutting and forming processes such as end cutting and surface finishing, an indispensable core link in the high-quality sealing ring manufacturing chain. In this precision machining process, the performance of positioning components plays a decisive role. They are not only the physical carrier that transforms design drawings into qualified products, but also the cornerstone for ensuring machining accuracy, suppressing cutting vibration, and improving production efficiency.

[0003] In the field of O-ring machining, the convenience of positioning components directly affects production efficiency and changeover flexibility. Existing technologies have included patents attempting to address the issue of rapid changeover of positioning fixtures. For example, the utility model patent CN221314137U discloses a positioning device for O-ring machining. Its technical solution achieves automatic clamping and positioning of the O-ring through a mounting frame, a moving mechanism, and a positioning mechanism. However, when machining different types of O-rings and requiring replacement of positioning components such as positioning seats, the changeover process typically still relies on traditional mechanical connections such as bolt tightening. This connection method requires operators to perform tedious tightening or loosening operations with tools each time a changeover occurs. This is not only cumbersome and time-consuming but also highly dependent on operator skill, making it difficult to achieve rapid switching and high-precision repeatable positioning in a short time. This limits the overall efficiency under multi-variety, small-batch production models. Therefore, we propose a positioning component for O-ring machining. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a sealing ring cutting and positioning assembly, including a worktable, a mounting base, and a positioning element located above the mounting base. The mounting base is rotatably mounted on the worktable. The mounting base is equipped with a quick-release mechanism for mounting the positioning element. The mounting base has three sets of annularly distributed positioning rods, and the positioning element has three sets of annularly distributed positioning grooves. The three sets of positioning rods are correspondingly arranged with the positioning grooves. The positioning rods are movably engaged with the positioning element through the positioning grooves. A fixing frame is fixedly mounted on the mounting base, and a rotating rod is rotatably mounted inside the fixing frame. The fixing frame is equipped with a locking mechanism for fixing the rotating rod.

[0005] In some embodiments, the quick assembly / disassembly mechanism includes three sets of guide rails distributed in a ring on the mounting base. Each of the three sets of guide rails has an adjusting bracket slidably installed inside it. Each of the three sets of adjusting brackets corresponds to one of the three sets of positioning rods, and the adjusting bracket is fixedly connected to the corresponding positioning rod.

[0006] In some embodiments, the quick disassembly and assembly mechanism further includes a turntable rotatably mounted in the mounting base. The turntable has three sets of annularly distributed adjustment slots, which are correspondingly arranged with three sets of adjustment frames. Each of the three sets of adjustment frames has an adjustment rod fixedly mounted on it. Each of the three sets of adjustment rods is slidably connected to the turntable through the corresponding adjustment slot. A toothed ring is sleeved on the turntable, and a drive wheel is sleeved on the rotating rod. The drive wheel is meshed with the toothed ring.

[0007] In some embodiments, a locking disc is fixedly sleeved on the rotating rod, and two sets of symmetrically distributed brake pads are slidably sleeved on the rotating rod. The two sets of brake pads are symmetrically distributed on both sides of the locking disc and are fitted to the locking disc. The locking mechanism includes two sets of movable frames slidably installed in a fixed frame. The two sets of movable frames are fixedly connected to the two sets of brake pads respectively. A rack is fixedly installed on each of the two sets of movable frames, and a gear is provided between the two sets of racks. A sliding rod corresponding to the movable frame is fixedly installed in the fixed frame.

[0008] In some embodiments, the gears are meshed with two sets of racks respectively, the gears are rotatably connected to the fixed frame via a mounting shaft, the two sets of movable frames are centrally symmetrical about the mounting shaft, a torsion spring is sleeved on the mounting shaft, and the two ends of the torsion spring are fixedly connected to the gear and the fixed frame respectively.

[0009] In some embodiments, the movable frame is slidably sleeved with a corresponding slide rod, and two sets of symmetrically distributed springs are sleeved on the slide rod, with the two ends of the two sets of springs respectively fixedly connected to the movable frame and the fixed frame.

[0010] In some embodiments, a handle is fixedly installed on the movable frame described above, the handle passing through the fixed frame and slidably connected to the fixed frame.

[0011] This utility model has at least the following beneficial effects: 1. By rotating the mounting base on the workbench and incorporating a quick-release mechanism within the mounting base (including guide rails, adjusting brackets, turntables, adjusting rods, gear rings, and drive wheels), efficient and precise assembly and disassembly of positioning components are achieved. The corresponding snap-fit ​​design of three sets of ring-shaped positioning rods into positioning slots not only simplifies the installation process but also significantly improves repeatability. Operators only need to rotate the rotating rod to drive the turntable through the engagement of the drive wheel and gear ring, which in turn drives the adjusting bracket to move synchronously along the guide rails. This allows the positioning rods to quickly engage or disengage from the positioning slots without the need for additional tools, significantly reducing changeover time, lowering labor intensity, and effectively improving equipment utilization and changeover flexibility in multi-variety, small-batch production models. 2. By setting up a locking mechanism consisting of a handle, a moving frame, a rack, gears, brake pads, and a locking disc, a fast and reliable two-way locking and unlocking of the rotating rod is achieved. When it is necessary to adjust the spacing of the positioning rods to accommodate different specifications of positioning parts, simply pull the handle upwards. The rack and pinion drive will simultaneously move the two sets of brake pads away from the locking disc, instantly releasing the locking of the rotating rod, allowing it to rotate freely. Through the drive wheel and gear ring, the rotating disc will move, thereby precisely adjusting the positioning range formed by the three sets of adjusting frames and positioning rods. After adjustment, once the handle is released, under the coordinated reset action of the torsion spring and spring, the two sets of brake pads will immediately move inwards synchronously and closely fit the two sides of the locking disc, forming a strong frictional braking force, firmly locking the rotating rod in the current position. This design effectively avoids the accidental rotation of the rotating rod due to vibration or external force during the cutting process, fundamentally preventing the positioning rod from loosening its clamping of the positioning part, and ensuring ultra-high stability and positioning reliability throughout the entire processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the quick assembly / disassembly mechanism of this utility model; Figure 3 This utility model Figure 2 Enlarged view of the structure at point A; Figure 4 This is a schematic diagram of the locking mechanism of this utility model; Figure 5 This is a schematic diagram showing the structural separation of the rotating rod and brake pads of this utility model; Figure 6 This utility model Figure 5 Enlarged view of the structure at point -B.

[0013] In the diagram: 1. Workbench; 2. Mounting base; 3. Positioning component; 4. Quick disassembly / assembly mechanism; 401. Guide rail; 402. Adjusting bracket; 403. Positioning rod; 404. Positioning groove; 405. Turntable; 406. Gear ring; 407. Drive wheel; 408. Adjusting groove; 409. Adjusting rod; 5. Fixed bracket; 6. Locking mechanism; 601. Locking disc; 602. Brake pad; 603. Moving bracket; 604. Rack; 605. Gear; 606. Mounting shaft; 607. Torsion spring; 608. Slide rod; 609. Spring; 610. Handle; 7. Rotating rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: Please refer to Figure 1-3 This utility model provides a technical solution: a sealing ring cutting and positioning assembly, including a worktable 1, a mounting base 2, and a positioning component 3 located above the mounting base 2. The mounting base 2 is rotatably mounted on the worktable 1. The mounting base 2 is provided with a quick-release mechanism 4 for installing the positioning component 3. The mounting base 2 is provided with three sets of annularly distributed positioning rods 403. The positioning component 3 is provided with three sets of annularly distributed positioning grooves 404. The three sets of positioning rods 403 are correspondingly arranged with the positioning grooves 404. The positioning rods 403 are movably engaged with the positioning component 3 through the positioning grooves 404. Next, a fixing frame 5 is fixedly installed on the mounting base 2, and a rotating rod 7 is rotatably installed inside the fixing frame 5. The fixing frame 5 is provided with a locking mechanism 6 for fixing the rotating rod 7. The positioning component 3 is movably engaged with the corresponding three sets of positioning rods 403 on the mounting base 2 through its three sets of annularly distributed positioning grooves 404, realizing the quick pre-positioning and circumferential fixing of the positioning component 3 on the mounting base 2, laying the foundation for subsequent quick clamping and loosening. The fixing frame 5 and the internal rotating rod 7 and locking mechanism 6 are the core of driving the quick disassembly and assembly mechanism 4 and ensuring its stable working state.

[0016] The quick-release mechanism 4 includes three sets of guide rails 401 arranged in annularly on the mounting base 2. Adjustment brackets 402 are slidably installed within each of the three sets of guide rails 401. Each of the three sets of adjustment brackets 402 corresponds to one of the three sets of positioning rods 403, and the adjustment brackets 402 are fixedly connected to their corresponding positioning rods 403. The quick-release mechanism 4 also includes a turntable 405 rotatably installed within the mounting base 2. The turntable 405 has three sets of annularly arranged adjustment grooves 408, which correspond to the three sets of adjustment brackets 402. Adjustment rods 409 are fixedly installed on each of the three sets of adjustment brackets 402, and the three sets of adjustment rods 409 are slidably connected to the turntable 405 through their corresponding adjustment grooves 408. A toothed ring 406 is sleeved on the turntable 405, and a drive wheel 40 is sleeved on the rotating rod 7. 7. The drive wheel 407 is engaged with the gear ring 406. When the operator rotates the rotating rod 7, the drive wheel 407, which is sleeved on the rotating rod 7, rotates accordingly. Through engagement with the gear ring 406, it drives the turntable 405 to rotate within the mounting base 2. Due to its special contour design, the three sets of adjustment grooves 408 on the turntable 405 will simultaneously drive the three sets of adjustment rods 409 that are slidably connected to them when rotating. This forces the three adjustment frames 402 to move radially synchronously along their respective guide rails 401. The movement of the adjustment frame 402 directly drives the positioning rod 403 fixed to it to move synchronously, realizing the clamping (radial tightening) or loosening (radial expansion) of the positioning rod 403 in the positioning groove 404. This completes the clamping, fixing, disassembly, and replacement of the positioning component 3. The whole process is coordinated and efficient.

[0017] Example 2: Please refer to Figure 4-6 A locking disc 601 is fixedly sleeved on the rotating rod 7. Two sets of symmetrically distributed brake pads 602 are slidably sleeved on the rotating rod 7. The two sets of brake pads 602 are symmetrically distributed on both sides of the locking disc 601 and are both fitted against the locking disc 601. The locking mechanism 6 includes two sets of movable frames 603 slidably installed in the fixed frame 5. The two sets of movable frames 603 are fixedly connected to the two sets of brake pads 602 respectively. A rack 604 is fixedly installed on each of the two sets of movable frames 603. A gear 605 is provided between the two sets of racks 604. A sliding rod 608 corresponding to the movable frame 603 is fixedly installed in the fixed frame 5. 601 rotates synchronously with the rotating rod 7 and is the target component for braking. Two sets of brake pads 602 are located on both sides of the locking disc 601. Their contact or separation with the locking disc 601 directly determines the locking and releasing state of the rotating rod 7. The movement of the brake pads 602 is controlled by the moving frame 603. The two sets of moving frames 603 are linked by a gear 605 in the middle and two racks 604 fixed on it, ensuring that the forces applied to both sides of the locking disc 601 are synchronous and symmetrical, providing a structural basis for stable and uniform braking. The slide rod 608 provides precise guidance for the sliding of the moving frame 603.

[0018] Gear 605 meshes with two sets of racks 604. Gear 605 is rotatably connected to fixed frame 5 via mounting shaft 606. Two sets of movable frames 603 are centrally symmetrically distributed about mounting shaft 606. Torsion springs 607 are sleeved on mounting shaft 606, with both ends of torsion springs 607 fixedly connected to gear 605 and fixed frame 5 respectively. Movable frames 603 are slidably sleeved with corresponding slide rods 608. Two sets of symmetrically distributed springs 609 are sleeved on slide rods 608, with both ends of springs 609 fixedly connected to movable frames 603 and fixed frame 5 respectively. A handle 610 is fixedly installed on the upper movable frame 603, passing through fixed frame 5 and slidably connected to fixed frame 5. In its natural state, the preload of torsion springs 607 keeps gear 605 at an initial angle, thereby driving the two sets of movable frames 603 and fixed frame 5 through rack transmission 604. The brake pads 602 clamp inward synchronously, creating a strong frictional braking force on the locking disc 601, thereby locking the rotating rod 7. When adjustment is needed, the operator pulls the handle 610 upward, causing the upper moving frame 603 to move upward against the force of the spring 609 and the torsion spring 607. This drives the gear 605 to rotate through the rack 604. The rotation of the gear 605 causes the lower rack 604 and the moving frame 603 to move downward synchronously, thereby causing the two sets of brake pads 602 to move away from the locking disc 601 synchronously, releasing the lock. At this time, the rotating rod 7 can rotate freely to adjust the positioning rod 403. After releasing the handle 610, under the combined action of the torsion spring 607 attempting to restore its initial angle and the compression and rebound of the two sets of springs 609, the two sets of moving frames 603 will be immediately driven to reset, causing the brake pads 602 to re-clamp the locking disc 601, achieving automatic, fast and reliable bidirectional locking.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning assembly for machining a sealing ring, comprising a worktable (1), a mounting base (2), and a positioning element (3) located above the mounting base (2), characterized in that: The mounting base (2) is rotatably mounted on the workbench (1). The mounting base (2) is provided with a quick disassembly and assembly mechanism (4) for mounting the positioning component (3). The mounting base (2) is provided with three sets of ring-shaped positioning rods (403). The positioning component (3) is provided with three sets of ring-shaped positioning grooves (404). The three sets of positioning rods (403) are correspondingly arranged with the positioning grooves (404). The positioning rods (403) are movably engaged with the positioning component (3) through the positioning grooves (404). The mounting base (2) is fixedly mounted with a fixing frame (5). The fixing frame (5) is rotatably mounted with a rotating rod (7). The fixing frame (5) is provided with a locking mechanism (6) for fixing the rotating rod (7).

2. The sealing ring machining positioning assembly according to claim 1, characterized in that: The quick assembly / disassembly mechanism (4) includes three sets of guide rails (401) arranged in a ring on the mounting base (2). Each of the three sets of guide rails (401) has an adjusting bracket (402) slidably installed inside. Each of the three sets of adjusting brackets (402) corresponds to one of the three sets of positioning rods (403). The adjusting bracket (402) is fixedly connected to the corresponding positioning rod (403).

3. The sealing ring machining positioning assembly according to claim 1, characterized in that: The quick disassembly and assembly mechanism (4) also includes a turntable (405) rotatably mounted in the mounting base (2). The turntable (405) has three sets of annularly distributed adjustment grooves (408). The three sets of adjustment grooves (408) are correspondingly arranged with three sets of adjustment frames (402). Adjustment rods (409) are fixedly installed on the three sets of adjustment frames (402). The three sets of adjustment rods (409) are slidably connected to the turntable (405) through the corresponding adjustment grooves (408). A toothed ring (406) is sleeved on the turntable (405). A drive wheel (407) is sleeved on the rotating rod (7). The drive wheel (407) is meshed with the toothed ring (406).

4. The sealing ring machining positioning assembly according to claim 1, characterized in that: A locking disc (601) is fixedly sleeved on the rotating rod (7), and two sets of symmetrically distributed brake pads (602) are slidably sleeved on the rotating rod (7). The two sets of brake pads (602) are symmetrically distributed on both sides of the locking disc (601) and are fitted to the locking disc (601). The locking mechanism (6) includes two sets of movable frames (603) slidably installed in the fixed frame (5). The two sets of movable frames (603) are fixedly connected to the two sets of brake pads (602) respectively. A rack (604) is fixedly installed on each of the two sets of movable frames (603), and a gear (605) is provided between the two sets of racks (604). A slide rod (608) corresponding to the movable frame (603) is fixedly installed in the fixed frame (5).

5. The sealing ring machining positioning assembly according to claim 4, characterized in that: The gear (605) meshes with two sets of racks (604) respectively. The gear (605) is rotatably connected to the fixed frame (5) through the mounting shaft (606). The two sets of movable frames (603) are centrally symmetrically distributed about the mounting shaft (606). A torsion spring (607) is sleeved on the mounting shaft (606). The two ends of the torsion spring (607) are fixedly connected to the gear (605) and the fixed frame (5) respectively.

6. The sealing ring machining positioning assembly according to claim 4, characterized in that: The movable frame (603) is slidably sleeved with the corresponding slide rod (608). Two sets of symmetrically distributed springs (609) are sleeved on the slide rod (608). The two ends of the two sets of springs (609) are respectively fixedly connected to the movable frame (603) and the fixed frame (5).

7. The sealing ring machining positioning assembly according to claim 4, characterized in that: A handle (610) is fixedly installed on the movable frame (603) above. The handle (610) passes through the fixed frame (5) and is slidably connected to the fixed frame (5).

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