Polishing structure for floating oil seal
By designing a lifting electric grinder and a grinding structure for a fixed floating oil seal, the problem of secondary grinding caused by fixture fixation was solved, achieving efficient grinding of inner and outer peripheral walls and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing technology, alloy cast iron floating oil seals need to be fixed by a clamp during grinding, which makes it impossible to grind the clamped part, requiring secondary grinding, which affects efficiency and increases labor intensity.
A grinding structure for floating oil seals was designed, which adopts a lifting electric grinder and a fixed structure, including an outer ring clamp and an inner ring clamp. The connecting frame is moved by an electric push rod and a threaded rod to achieve individual positioning and grinding of the inner and outer peripheral walls of the oil seal.
This technology enables efficient grinding of floating oil seals, reduces the need for secondary grinding, lowers the labor intensity of workers, and improves grinding efficiency.
Smart Images
Figure CN224115784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alloy cast iron floating oil seal production and processing technology, specifically a grinding structure for floating oil seals. Background Technology
[0002] The production and processing of alloy cast iron floating oil seals refers to the manufacture of alloy cast iron floating oil seals using centrifugal casting technology. The production and processing steps of alloy cast iron floating oil seals include material preparation and smelting, molten iron purification and temperature measurement, centrifugal casting, demolding and cleaning, machining and inspection, etc. Among them, machining and inspection involve rough machining, inner ring surface grinding, and sealing surface grinding of the alloy cast iron floating oil seal blank to meet the corresponding dimensional requirements and achieve the surface roughness and flatness requirements for sealing performance, thereby obtaining a semi-finished alloy cast iron floating oil seal. Then, the semi-finished product is cleaned and inspected to obtain the finished alloy cast iron floating oil seal. The rotation speed of the mold in the centrifugal device is usually 300-1500 rpm. The appropriate rotation speed allows the molten iron to fill the mold better under the action of centrifugal force, ensuring the quality and performance of the casting.
[0003] In current technologies, the processing steps for manufacturing alloy cast iron floating oil seals involve using a grinding machine to remove burrs. Before grinding, the alloy cast iron floating oil seal needs to be fixed to the processing fixture using a jig. However, the clamping part of the jig may not be able to reach the grinding wheel, requiring secondary grinding, which affects the grinding efficiency of the alloy cast iron floating oil seal. Furthermore, the alloy cast iron floating oil seal needs to be re-fixed, increasing the labor intensity of the workers. Therefore, a grinding structure for floating oil seals is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a grinding structure for floating oil seals, which has the advantages of efficient grinding and convenient fixing. It solves the problem that before grinding, the alloy cast iron floating oil seal needs to be fixed to the processing fixture by a clamp. However, the clamping part of the clamp can cause the grinding wheel to not be able to reach it, thus requiring secondary grinding, which affects the grinding efficiency of the alloy cast iron floating oil seal. Moreover, the alloy cast iron floating oil seal needs to be re-fixed, which increases the labor intensity of the workers.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding structure for a floating oil seal, including a processing fixture, a protective frame on the processing fixture, a lifting electric grinding machine on the protective frame, and a fixing structure on the processing fixture;
[0006] The fixed structure includes a positioning platform fixedly installed on the top of the machining fixture. Two connecting frames are slidably installed inside the positioning platform. Each of the two connecting frames is equipped with an outer ring clamp for fixing the outer surface of the floating oil seal. Each of the two connecting frames is also equipped with an inner ring clamp for abutting against the inner circumferential wall of the floating oil seal. A support plate with one end penetrating through and extending into the interior of the connecting frame is fixedly installed at the bottom of each of the two inner ring clamps and the two outer ring clamps. Lifting components for controlling the up and down movement of the support plates are installed inside the two connecting frames. A drive component for controlling the left and right movement of the two connecting frames is provided on the positioning platform.
[0007] Furthermore, the drive assembly includes a threaded rod rotatably mounted inside the positioning platform with one end penetrating through and extending to the outside. The two connecting frames are respectively threaded to the outer surface of the threaded rod. A double-brake motor with an output shaft fixedly connected to one end of the threaded rod is fixedly mounted on the left side of the positioning platform. The positioning platform is provided with a guide component for limiting the movement trajectory of the two connecting frames.
[0008] Furthermore, the protective frame is fixedly installed on the top of the processing fixture, and the lifting electric grinder is installed on the protective frame.
[0009] Furthermore, the top of the positioning platform has two rectangular slots and one through slot, the through slot is connected to the two rectangular slots, the two rectangular slots are located on the left and right sides of the through slot respectively, and rubber pads are fixedly installed on the two outer ring clamps and the two inner ring clamps.
[0010] Furthermore, the lifting component includes four electric push rods, which are respectively fixedly installed on the inner bottom wall of the two connecting frames, and the telescopic ends of the electric push rods are fixedly connected to the support plate.
[0011] Furthermore, the two threads on the outer surface of the threaded rod are symmetrically distributed from left to right, and a base is rotatably installed on the right end of the threaded rod, and the base is fixedly connected to the right side wall of the inner cavity of the positioning table.
[0012] Furthermore, the guiding component includes a guide rod, which is fixedly installed between the left and right sides of the inner cavity of the positioning platform. Guide holes are provided on both connecting frames. One end of the guide rod passes through the two guide holes, and the outer surface of the guide rod is slidably connected to the inner walls of the two guide holes respectively.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] This floating oil seal grinding structure, through the inclusion of a fixed structure, utilizes two electric push rods in the lifting component to control the upward movement of two support plates, thereby pushing either the two outer ring clamps or the two inner ring clamps out of the positioning table. Then, a dual-brake motor drives the threaded rod to rotate, controlling the two connecting frames to move to opposite sides or away from each other. This allows the two outer ring clamps to move to opposite sides and fix the outer peripheral wall of the floating oil seal, or the two inner ring clamps to move away from each other and press against the inner peripheral wall of the floating oil seal. This facilitates the one-time grinding and cleaning of both the outer and inner peripheral walls of the floating oil seal, thereby improving the grinding efficiency of the floating oil seal and reducing the labor intensity of the workers. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of point A in the image;
[0017] Figure 3 This is a perspective view of the outer ring clamp, inner ring clamp, and support plate of the present invention.
[0018] In the diagram: 1. Machining fixture; 2. Protective frame; 3. Lifting electric grinder; 41. Positioning table; 42. Connecting frame; 43. Outer ring clamp; 44. Inner ring clamp; 45. Support plate; 46. Lifting component; 47. Threaded rod; 48. Double brake motor; 49. Guide component. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1 to 3 The grinding structure for a floating oil seal in this embodiment includes a processing fixture 1, a protective frame 2 on the processing fixture 1, a lifting electric grinder 3 on the protective frame 2, a fixing structure on the processing fixture 1, the protective frame 2 being fixedly installed on the top of the processing fixture 1, and the lifting electric grinder 3 being installed on the protective frame 2.
[0021] In this embodiment, the fixed structure includes a positioning platform 41 fixedly installed on the top of the machining fixture 1. Two connecting frames 42 are slidably installed inside the positioning platform 41. The two connecting frames 42 are respectively equipped with outer ring clamps 43 for fixing the outer surface of the floating oil seal. The two connecting frames 42 are respectively equipped with inner ring clamps 44 for abutting against the inner peripheral wall of the floating oil seal. The bottom of the two inner ring clamps 44 and the two outer ring clamps 43 are all fixedly equipped with a support plate 45 that extends through and into the interior of the connecting frame 42. The two connecting frames 42 are equipped with lifting components 46 for controlling the up and down movement of the support plate 45. The positioning platform 41 is provided with a drive component for controlling the left and right movement of the two connecting frames 42.
[0022] The top of the positioning platform 41 has two rectangular slots and one through slot. The through slot is connected to the two rectangular slots. The two rectangular slots are located on the left and right sides of the through slot, respectively, so that the outer ring clamp 43 and the inner ring clamp 44 can extend out of the positioning platform 41. Rubber pads are fixedly installed on the two outer ring clamps 43 and the two inner ring clamps 44 to prevent damage to the oil seal.
[0023] In addition, the lifting component 46 includes four electric push rods, which are fixedly installed on the inner bottom wall of the two connecting frames 42 respectively. The telescopic ends of the electric push rods are fixedly connected to the support plate 45, which facilitates the individual control of the two outer ring clamps 43 or the two inner ring clamps 44 to extend out of the positioning platform 41.
[0024] Using the above technical solution, the floating oil seal is placed on the positioning platform 41. When the electric push rod in the lifting component 46 is activated, the telescopic end of the electric push rod drives the support plate 45 to move up and down, thereby controlling the two outer ring clamps 43 or the two inner ring clamps 44 to extend out of the positioning platform 41. When it is necessary to grind the inner circumferential wall of the floating oil seal, the two outer ring clamps 43 are selected. When it is necessary to grind the outer circumferential wall of the floating oil seal, the two inner ring clamps 44 are selected. Then, the driving component controls the two connecting frames 42 to move towards each other, thereby causing the moving connecting frames 42 to drive the outer ring clamps 43 or the inner ring clamps 44 to move synchronously, thereby realizing the individual positioning of the inner or outer circumferential wall of the floating oil seal.
[0025] In this embodiment, the drive assembly includes a threaded rod 47 rotatably mounted inside the positioning platform 41, with one end extending through and to the outside of the platform. Two connecting frames 42 are threadedly connected to the outer surface of the threaded rod 47. A double-brake motor 48 with an output shaft fixedly connected to one end of the threaded rod 47 is fixedly mounted on the left side of the positioning platform 41. The positioning platform 41 is equipped with a guide component 49 for limiting the movement trajectory of the two connecting frames 42. The guide component 49 includes a guide rod, which is fixedly mounted between the left and right sides of the inner cavity of the positioning platform 41. Guide holes are provided on both connecting frames 42. One end of the guide rod passes through the two guide holes, and the outer surface of the guide rod is slidably connected to the inner wall of the two guide holes, thereby limiting the two connecting frames 42 to only move linearly on the guide rod.
[0026] The two threads on the outer surface of the threaded rod 47 are symmetrically distributed. A base is rotatably installed on the right end of the threaded rod 47. The base is fixedly connected to the right side wall of the inner cavity of the positioning table 41, so that rotating the threaded rod 47 can control the two connecting frames 42 to move to the opposite side or the opposite side.
[0027] By adopting the above technical solution, the dual-brake motor 48 is then started, which drives the threaded rod 47 to rotate. Since the two connecting frames 42 are connected to the threaded rod 47 by threads and can only move in a straight line under the restriction of the guide rod of the guide component 49, the two connecting frames 42 will move towards each other as the threaded rod 47 rotates, thereby causing the moving connecting frames 42 to drive the outer ring clamp 43 or the inner ring clamp 44 to move synchronously.
[0028] The working principle of the above embodiments is as follows:
[0029] The floating oil seal uses a grinding structure. In use, the floating oil seal is placed on the positioning table 41. The electric push rod in the lifting component 46 is activated. The telescopic end of the electric push rod drives the support plate 45 to move up and down, thereby controlling the two outer ring clamps 43 or the two inner ring clamps 44 to extend out of the positioning table 41. When it is necessary to grind the inner peripheral wall of the floating oil seal, the two outer ring clamps 43 are selected. When it is necessary to grind the outer peripheral wall of the floating oil seal, the two inner ring clamps 44 are selected.
[0030] Then, the double-brake motor 48 is started, which drives the threaded rod 47 to rotate. Since the two connecting frames 42 are connected to the threaded rod 47 by threads, and can only move in a straight line under the restriction of the guide rod of the guide component 49, the two connecting frames 42 will move towards each other as the threaded rod 47 rotates, thereby causing the moving connecting frames 42 to drive the outer ring clamp 43 or the inner ring clamp 44 to move synchronously.
[0031] If the inner circumference of the floating oil seal is being ground, the two outer ring clamps 43 will move to the opposite side to hold the floating oil seal. If the outer circumference of the floating oil seal is being ground, the two inner ring clamps 44 will move to opposite sides to press against the floating oil seal. Furthermore, the rubber pads on the outer ring clamps 43 and the inner ring clamps 44 can prevent damage to the oil seal.
[0032] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] 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 polishing structure for floating oil seal, comprising a processing tool (1), characterized in that: The processing fixture (1) is provided with a protective frame (2), the protective frame (2) is provided with a lifting electric grinder (3), and the processing fixture (1) is provided with a fixing structure; The fixed structure includes a positioning platform (41) fixedly installed on the top of the machining fixture (1). Two connecting frames (42) are slidably installed inside the positioning platform (41). The two connecting frames (42) are respectively equipped with outer ring clamps (43) for fixing the outer surface of the floating oil seal. The two connecting frames (42) are respectively equipped with inner ring clamps (44) for abutting against the inner circumferential wall of the floating oil seal. The bottom of the two inner ring clamps (44) and the two outer ring clamps (43) are all fixedly equipped with a support plate (45) that extends through and into the interior of the connecting frame (42). The interior of the two connecting frames (42) is equipped with a lifting component (46) for controlling the up and down movement of the support plate (45). The positioning platform (41) is provided with a drive component for controlling the left and right movement of the two connecting frames (42).
2. The grinding structure for a floating oil seal according to claim 1, characterized in that: The drive assembly includes a threaded rod (47) rotatably mounted inside the positioning platform (41) and extending through and to the outside of it at one end. The two connecting frames (42) are threadedly connected to the outer surface of the threaded rod (47) respectively. A double-brake motor (48) with an output shaft fixedly connected to one end of the threaded rod (47) is fixedly mounted on the left side of the positioning platform (41). The positioning platform (41) is provided with a guide component (49) for limiting the movement trajectory of the two connecting frames (42).
3. The grinding structure for a floating oil seal according to claim 1, characterized in that: The protective frame (2) is fixedly installed on the top of the processing fixture (1), and the lifting electric grinder (3) is installed on the protective frame (2).
4. The grinding structure for a floating oil seal according to claim 1, characterized in that: The top of the positioning platform (41) has two rectangular slots and one through slot. The through slot is connected to the two rectangular slots. The two rectangular slots are located on the left and right sides of the through slot, respectively. Rubber pads are fixedly installed on the two outer ring clamps (43) and the two inner ring clamps (44).
5. The grinding structure for a floating oil seal according to claim 1, characterized in that: The lifting component (46) includes four electric push rods, which are respectively fixedly installed on the inner bottom wall of the two connecting frames (42), and the telescopic ends of the electric push rods are fixedly connected to the support plate (45).
6. The grinding structure for a floating oil seal according to claim 2, characterized in that: The two threads on the outer surface of the threaded rod (47) are symmetrically distributed from left to right. A base is rotatably installed on the right side of the threaded rod (47), and the base is fixedly connected to the right side wall of the inner cavity of the positioning table (41).
7. The grinding structure for a floating oil seal according to claim 2, characterized in that: The guide component (49) includes a guide rod, which is fixedly installed between the left and right sides of the inner cavity of the positioning platform (41). Guide holes are provided on both of the connecting frames (42). One end of the guide rod passes through the two guide holes, and the outer surface of the guide rod is slidably connected to the inner wall of the two guide holes respectively.