Accurate positioning rubber sealing ring processing device

Abstract

The utility model discloses a precision positioning rubber sealing ring processing device belongs to rubber products processing equipment technical field, including work table, the equal fixedly connected with the support of four quarters of work table lower extreme, the upper end of work table is equipped with a plurality of symmetrical distribution's expansion groove, and the expansion groove slidingly connected has the positioning rod, and the upper end of work table is inlayed with the electromagnet, and the electromagnet is located among a plurality of positioning rods, and the lower extreme fixedly connected with the power of work table, and the power and electromagnet electric connection, the upper end fixedly connected with a plurality of magnetizable strips of corresponding expansion groove of work table, and the positioning rod includes support rod, and support rod slidingly connected in expansion groove, and the lower extreme fixedly connected with the magnetic block of support rod, and the lower extreme fixedly connected with the limit block of magnetic block, it can realize through the repulsion force of electromagnet magnetization and produce and drive a plurality of positioning rods synchronous opposite movement, can accurate and close different inner diameter specifications rubber sealing ring inner wall, realize from small size to larger size sealing ring flexible adaptation.

Description

Technical Field

[0001] This utility model relates to the field of rubber product processing equipment technology, and more specifically, to a device for precisely positioning rubber sealing rings. Background Technology

[0002] The precision positioning rubber sealing ring processing device is a mechanical equipment specifically designed for the precision machining of rubber sealing rings. Its core objective is to achieve micron-level positioning accuracy control during the sealing ring processing through mechanical structure optimization and closed-loop control technology, thereby solving problems such as large positioning deviations, easy product deformation, and poor specification compatibility in traditional processing.

[0003] Chinese Patent Announcement No. CN219633565U discloses a positioning fixture for processing rubber sealing rings. This patent uses a motor to drive a winding wheel to rotate, which in turn pulls several sliders synchronously via a pull rope. This causes the corresponding tension springs to be stretched and gain elastic restoring force. The rotating cylinders at the top of the sliders synchronously move in a centripetal linear displacement. At this time, the rubber sealing ring is fitted onto the outer wall of the rotating cylinders. Then, the motor is driven in the opposite direction, and the elastic restoring force provided by the tension springs causes the rotating cylinders to synchronously move away from each other in a linear displacement, thereby tightening the inner ring wall of the rubber sealing ring. Therefore, this positioning fixture can quickly and effectively limit and fix rubber sealing rings of different models. Furthermore, the rotating cylinders are rotatably mounted on the top of the corresponding sliders, so the fixed rubber sealing ring can be easily rotated, thus facilitating the processing of the rubber sealing ring.

[0004] However, in the aforementioned patent, the inner ring of the sealing ring is tightened and positioned by the elastic restoring force of the tension spring. Its positioning accuracy directly depends on the mechanical stability of the tension spring. However, according to the spring performance test standards, the elastic coefficient of the tension spring will decay under long-term cyclic load, resulting in a gradual decrease in the positioning force, which ultimately affects the concentricity control of the sealing ring. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a precision positioning rubber sealing ring processing device. It can drive multiple positioning rods to move synchronously in opposite directions by using the repulsive force generated by the magnetization of an electromagnet, and can accurately press against the inner wall of rubber sealing rings of different inner diameter specifications, achieving flexible adaptation from small and medium-sized to large-sized sealing rings.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A precision positioning rubber sealing ring processing device includes a worktable with legs fixedly connected to its lower end. Multiple symmetrically distributed expansion grooves are formed on the upper end of the worktable, and positioning rods are slidably connected within these grooves. An electromagnet is embedded in the upper end of the worktable, positioned between the positioning rods. A power source is fixedly connected to the lower end of the worktable, and the power source is electrically connected to the electromagnet. Multiple magnetizable strips corresponding to the expansion grooves are fixedly connected to the upper end of the worktable. By fitting the rubber sealing ring onto the outer ends of the positioning rods, the electromagnets are activated and magnetized, repelling the positioning rods. The opposing movement of the positioning rods presses against the inner wall of the rubber sealing ring for support, thereby enabling the positioning and fixing of rubber sealing rings of different sizes.

[0010] Furthermore, the positioning rod includes a support rod, which is slidably connected within the expansion groove. A magnetic block is fixedly connected to the lower end of the support rod, and a limit block is fixedly connected to the lower end of the magnetic block. The support rod abuts against the inner wall of the rubber sealing ring, and the magnetic block moves under the magnetic repulsion of the electromagnet. The limit block limits the entire positioning rod to prevent it from falling off.

[0011] Furthermore, the support rod includes a support rod, which is fixedly connected to the upper end of the magnetic block. An anti-detachment groove is provided on the side end of the support rod, and a guide block is slidably connected in the anti-detachment groove. A magnetic pressure block is fixedly connected to the end of the guide block away from the support rod. A return spring is fixedly connected between the guide block and the inner wall of the anti-detachment groove. After the rubber sealing ring is limited and fixed by multiple positioning rods, the magnetizable strip is magnetized under the activation of the electromagnet, so that the magnetizable strip attracts the magnetic pressure block. The magnetic pressure block is forced to drive the guide block to compress and move downward until the magnetic pressure block abuts against the upper end of the rubber sealing ring, preventing displacement or detachment during the process of opening the rubber sealing ring. During restoration, the return spring helps the magnetic pressure block to return to its original position.

[0012] Furthermore, the limiting block includes a slider, which is fixedly connected to the lower end of the magnetic block. Slide grooves are provided at both ends of the slider, and a locking rod is slidably connected within each slide groove. Multiple fixing grooves matching the locking rods are provided on the inner wall of the expansion groove. An annular groove is provided on the inner wall of the slide groove, and a limiting ring is slidably connected within the annular groove and fixedly connected to the outer end of the locking rod. A first spring is provided within the annular groove and is wound around the outer end of the locking rod. When the positioning rod is pushed by magnetic force, the slider slides along the inner wall of the expansion groove, while the locking rod is squeezed into the slide groove by the inner wall of the expansion groove. This causes the limiting ring to compress the first spring, until the locking rod moves to the corresponding fixing groove. Under the rebound force, the limiting ring pushes the locking rod into the fixing groove, thus ensuring that multiple positioning rods move the same distance.

[0013] Furthermore, the limiting block also includes an iron block. The slider has a movable groove inside, and the movable groove is connected to the sliding groove. The iron block is slidably connected in the movable groove. A second spring is fixedly connected between the inner wall of the movable groove and the iron block. During the sliding process of the slider, the magnetic force of the electromagnet attracts the iron block and compresses the second spring, causing the iron block to disengage from the locking rod. Thus, the locking rod can slide. After the locking rod moves a suitable distance and engages with the fixed groove, the power supply to the electromagnet is disconnected to demagnetize it. Under the rebound force of the second spring, the iron block returns to its original position and is locked between a pair of locking rods, thereby limiting the final position of the positioning rod.

[0014] Furthermore, a caster wheel is fixedly connected to the lower end of the support leg, and the caster wheel is equipped with a foot brake. The caster wheel allows the device to be moved easily, while the foot brake can fix it in place.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution uses the repulsive force generated by the magnetization of an electromagnet to drive multiple positioning rods to move synchronously in opposite directions, which can accurately press against the inner wall of rubber sealing rings with different inner diameter specifications, and realize flexible adaptation from small to large size sealing rings.

[0018] (2) In this scheme, the magnetic pressure block achieves axial pressing of the sealing ring under the magnetic force of the magnetizable strip, which effectively avoids the problem of the sealing ring shifting or falling off during the positioning rod opening process. With the help of the locking structure of the clamping rod and the fixing groove, the movement distance of multiple positioning rods is consistent, which significantly improves the concentricity of the sealing ring positioning and reduces the dimensional deviation during the processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front sectional view of the workbench of this utility model;

[0021] Figure 3 This is a schematic diagram of the support rod structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the side cross-sectional structure of the support rod of this utility model;

[0023] Figure 5 This is a schematic diagram of the limiting block structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Workbench; 2. Support leg; 3. Positioning rod; 31. Support rod; 311. Support rod; 312. Guide block; 313. Magnetic pressure block; 314. Return spring; 32. Magnetic block; 33. Limiting block; 331. Slider; 332. Locking rod; 333. Limiting ring; 334. First spring; 335. Iron block; 336. Second spring; 4. Electromagnet; 5. Power supply; 6. Magnetizable strip; 7. Caster wheel. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 do not 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Please see Figures 1-5A precision positioning rubber sealing ring processing device includes a worktable 1, with support legs 2 fixedly connected to the lower end of the worktable 1. Multiple symmetrically distributed expansion grooves are formed on the upper end of the worktable 1, with positioning rods 3 slidably connected within these grooves. An electromagnet 4 is embedded in the upper end of the worktable 1, positioned between the positioning rods 3. A power supply 5 is fixedly connected to the lower end of the worktable 1, and the power supply 5 is electrically connected to the electromagnet 4. Multiple magnetizable strips 6, corresponding to the expansion grooves, are fixedly connected to the upper end of the worktable 1. The symmetrically distributed expansion grooves on the worktable 1 provide a stable sliding trajectory for the positioning rods 3. The electrical connection between the electromagnet 4 and the power supply 5 enables flexible control of the electromagnetic driving force. The repulsive effect of the electromagnet 4 on the positioning rods 3 drives their opposing movements. This device can adapt to rubber sealing rings of different inner diameters and provide tight positioning, completely solving the cumbersome problem of traditional positioning devices requiring complete replacement of the positioning components. It is easy to operate and has a wide range of applicability. Simultaneously, the magnetizable strips 6 provide a foundation for the subsequent axial pressing structure, laying a structural foundation for improving positioning stability.

[0031] The positioning rod 3 includes a support rod 31, which is slidably connected within the expansion groove. A magnetic block 32 is fixedly connected to the lower end of the support rod 31, and a limit block 33 is fixedly connected to the lower end of the magnetic block 32. The support rod 31 directly contacts the inner wall of the rubber sealing ring to achieve support and positioning. The magnetic block 32 can accurately transmit the repulsive magnetic force of the electromagnet 4, ensuring that the positioning rod 3 moves quickly. The limit block 33 effectively restricts the sliding stroke of the positioning rod 3, preventing it from falling out of the expansion groove of the worktable 1, significantly improving the structural stability and operational reliability of the device, and ensuring the smooth progress of the positioning process.

[0032] The support rod 31 includes a support rod 311, which is fixedly connected to the upper end of the magnetic block 32. An anti-detachment groove is provided on the side end of the support rod 311, and a guide block 312 is slidably connected in the anti-detachment groove. A magnetic pressure block 313 is fixedly connected to the end of the guide block 312 away from the support rod 311. A return spring 314 is fixedly connected between the guide block 312 and the inner wall of the anti-detachment groove. The magnetic pressure block 313 is attracted by the magnetizable strip 6 after being magnetized by the electromagnet 4, which drives the guide block 312 to compress the return spring 314 and causes the magnetic pressure block 313 to move down and press the upper end of the rubber sealing ring. This achieves axial positioning of the sealing ring and effectively prevents it from shifting or falling off during radial expansion. The return spring 314 can push the magnetic pressure block 313 to quickly reset after the electromagnet 4 is de-energized, which provides convenience for the next processing operation and improves the recycling efficiency of the device.

[0033] The limiting block 33 includes a slider 331, which is fixedly connected to the lower end of the magnetic block 32. Slide grooves are provided at both ends of the slider 331, and locking rods 332 are slidably connected within these grooves. Multiple fixing grooves matching the locking rods 332 are provided on the inner wall of the groove. An annular groove is provided on the inner wall of the groove, and a limiting ring 333 is slidably connected within it. The limiting ring 333 is fixedly connected to the outer end of the locking rod 332. A first spring 334 is provided within the annular groove and is wound around the outer end of the locking rod 332. Through the engagement of the locking rod 332 with the fixing groove on the inner wall of the groove, combined with the elastic force of the first spring 334 and the limiting effect of the limiting ring 333, it is ensured that multiple positioning rods 3 move the same distance under magnetic drive. This ensures the concentricity of the rubber sealing ring during positioning, reduces dimensional deviations during processing, and provides crucial positioning accuracy assurance for subsequent high-precision processing steps.

[0034] The limiting block 33 also includes an iron block 335. The slider 331 has a movable groove inside, and the movable groove is connected to the sliding groove. The iron block 335 is slidably connected in the movable groove. A second spring 336 is fixedly connected between the inner wall of the movable groove and the iron block 335. The locking rod 332 is unlocked by the magnetic attraction of the iron block 335 by the electromagnet 4, so that it can slide synchronously with the positioning rod 3. After the electromagnet 4 is de-energized, the second spring 336 pushes the iron block 335 to reset and press against the locking rod 332, so as to achieve a stable lock of the final position of the positioning rod 3, and prevent the positioning rod 3 from shifting due to external force during the processing, thereby further improving the stability and reliability of positioning.

[0035] The lower end of the support leg 2 is fixedly connected to a caster wheel 7, which is equipped with a foot brake. The caster wheel 7 enables flexible movement of the device, making it easy to adjust the device position according to the workshop production layout and adapt to different working environments. The foot brake on the caster wheel 7 can fix the device after it is moved to the target position, preventing the device from shaking during processing. This balances the ease of movement and operational stability of the device, and reduces the cost of adjusting the production layout.

[0036] Working principle:

[0037] Before use, the device can be moved to the target working position using the casters 7 at the lower end of the support legs 2. The foot brakes on the casters 7 are used to fix the device to prevent shaking during processing. During operation, the rubber sealing ring to be processed is first fitted onto the outer end of the support rod 31 of the multiple positioning rods 3. Then, the power supply 5 at the lower end of the worktable 1 is turned on to activate the electromagnet 4 embedded in the upper end of the worktable 1. The electromagnet 4 generates a repulsive magnetic force that acts on the magnetic block 32 at the lower end of the positioning rod 3, driving the positioning rod 3 to slide synchronously in opposite directions along the expansion groove on the worktable 1. The support rod 31 is pressed against the inner wall of the rubber sealing ring to complete radial positioning. On the other hand, the electromagnet 4 magnetizes the magnetizable strip 6 on the worktable 1. The magnetized magnetizable strip 6 generates an attraction force that acts on the magnetic pressure block 313 on the support rod 31, causing the guide block 312 to slide along the anti-disengagement groove of the support rod 311 and compress the reset spring 314, so that the magnetic pressure block 313 moves down to press the upper end of the rubber sealing ring to achieve axial limitation. During the sliding of the positioning rod 3, the slider 331 of the limiting block 33 moves synchronously with the magnetic block 32. The locking rods 332 at both ends of 331 are compressed into the slide groove by the inner wall of the expansion groove and compress the first spring 334 through the limiting ring 333. When the positioning rod 3 moves to the position of the matching sealing ring, the locking rod 332 aligns with the corresponding fixing groove on the inner wall of the expansion groove and is locked into the fixing groove under the elastic restoring force of the first spring 334, ensuring that the multiple positioning rods 3 move the same distance to ensure concentricity. At the same time, the electromagnet 4 attracts the iron block 335 in the slider 331, causing the iron block 335 to compress the second spring 336 and disengage from the locking rod. The contact of rod 332 facilitates the flexible sliding adjustment of the locking rod 332; after the positioning rod 3 is accurately in place, the power supply 5 is disconnected, the electromagnet 4 is demagnetized, and the second spring 336 pushes the iron block 335 to reset and press against the pair of locking rods 332, realizing the stable locking of the final position of the positioning rod 3 and preventing the positioning rod 3 from shifting due to external force during the processing; after the processing is completed, the electromagnet 4 is used to change the magnetism to attract the magnetic block 32, and the extension of multiple positioning rods 3 is retracted, so that the processed rubber sealing ring can be removed, completing a single processing operation.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A precision positioning rubber sealing ring processing device, comprising a worktable (1), characterized in that: The workbench (1) is fixedly connected to the four sides of the lower end with support legs (2). The upper end of the workbench (1) has multiple symmetrically distributed expansion slots. Positioning rods (3) are slidably connected in the expansion slots. An electromagnet (4) is embedded in the upper end of the workbench (1) and the electromagnet (4) is located between multiple positioning rods (3). A power supply (5) is fixedly connected to the lower end of the workbench (1) and the power supply (5) is electrically connected to the electromagnet (4). Multiple magnetizable strips (6) corresponding to the expansion slots are fixedly connected to the upper end of the workbench (1).

2. The precision positioning rubber sealing ring processing device according to claim 1, characterized in that: The positioning rod (3) includes a support rod (31), which is slidably connected in the expansion groove. A magnetic block (32) is fixedly connected to the lower end of the support rod (31), and a limit block (33) is fixedly connected to the lower end of the magnetic block (32).

3. The precision positioning rubber sealing ring processing device according to claim 2, characterized in that: The support rod (31) includes a support rod (311), which is fixedly connected to the upper end of the magnetic block (32). The support rod (311) has an anti-detachment groove on its side end. A guide block (312) is slidably connected in the anti-detachment groove. A magnetic pressure block (313) is fixedly connected to the end of the guide block (312) away from the support rod (311). A reset spring (314) is fixedly connected between the guide block (312) and the inner wall of the anti-detachment groove.

4. The precision positioning rubber sealing ring processing device according to claim 2, characterized in that: The limiting block (33) includes a slider (331), which is fixedly connected to the lower end of the magnetic block (32). The slider (331) has a sliding groove at both ends. A locking rod (332) is slidably connected in the sliding groove. The inner wall of the groove has multiple fixing grooves that match the locking rod (332). The inner wall of the groove has an annular groove. A limiting ring (333) is slidably connected in the annular groove and is fixedly connected to the outer end of the locking rod (332). A first spring (334) is provided in the annular groove and is wound around the outer end of the locking rod (332).

5. The precision positioning rubber sealing ring processing device according to claim 4, characterized in that: The limiting block (33) also includes an iron block (335). The slider (331) has a movable groove inside, and the movable groove is connected to the sliding groove. The iron block (335) is slidably connected in the movable groove. A second spring (336) is fixedly connected between the inner wall of the movable groove and the iron block (335).

6. The precision positioning rubber sealing ring processing device according to claim 1, characterized in that: The lower end of the support leg (2) is fixedly connected to a caster wheel (7), and the caster wheel (7) is equipped with a foot brake.

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