A sunken oil seal flatness measurement device

Abstract

The present invention provides a sunken oil seal flatness measuring device, belonging to the technical field of measuring equipment. The sunken oil seal flatness measuring device includes a support assembly and a measuring assembly. The support assembly includes a tooling table base and a vertical rod, and the vertical rod is fixed on the upper surface of the tooling table base. The measuring assembly includes a support plate, a slide rail, a slider, a threaded rod, a dial indicator, a first cross plate, a spring, a slide rod and a second cross plate. During use, rotate the vertical rod and move the tooling table base to measure about three points evenly spaced around the circumference of the oil seal at approximately 120 degrees. The flatness value of the oil seal is the maximum value minus the minimum value among the three readings on the dial indicator. The flatness should be less than or equal to 0.1 mm. When the flatness is greater than 0.1 mm, apply heavy pressure or replace the oil seal and reinstall it until the press-fitting of the oil seal is qualified, effectively avoiding oil leakage after the trial run due to unqualified flatness of the oil seal or oil leakage failure when it reaches the user, improving the user experience.

Description

Technical Field

[0001] The present invention relates to the field of measuring devices, and more particularly, to a measuring device for the flatness of a sunken oil seal. Background Art

[0002] A transfer case is a device that distributes the power of an engine and can output power to the rear axle or simultaneously output power to the front / rear axles. From this perspective, it can be seen that the transfer case is actually a component on a four-wheel drive vehicle. With the development of four-wheel drive technology, the transfer case has also been continuously changing and has gradually formed transfer cases with very different styles, which are matched to four-wheel drive vehicles with different requirements, and their basic principles and functions are also different from each other.

[0003] Currently, for the existing measuring device for the flatness of a sunken oil seal, after the oil seal is press-fitted into the transfer case, the uppermost surface is a rough surface and cannot be used as a reference surface to detect the flatness of the oil seal. There is a sunken circular narrow small plane, but this small plane cannot be used as a reference to place a conventional dial indicator base to detect the flatness of the oil seal, often resulting in the situation that the oil seal press-fitted on the transfer case is unqualified, reducing the user experience. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a measuring device for the flatness of a sunken oil seal, aiming to improve the problem that after the oil seal is press-fitted into the transfer case, the uppermost surface is a rough surface and cannot be used as a reference surface to detect the flatness of the oil seal. There is a sunken circular narrow small plane, but this small plane cannot be used as a reference to place a conventional dial indicator base to detect the flatness of the oil seal, often resulting in the situation that the oil seal press-fitted on the transfer case is unqualified, reducing the user experience.

[0005] The present invention is implemented as follows:

[0006] The present invention provides a measuring device for the flatness of a sunken oil seal, including a support assembly and a measuring assembly.

[0007] The support assembly includes a tooling dial indicator base and a vertical rod, and the vertical rod is fixed on the upper surface of the tooling dial indicator base.

[0008] The measuring component includes a support plate, a slide rail, a slider, a threaded rod, a dial indicator, a first cross plate, a spring, a slide rod, and a second cross plate. The support plate is fixed on the upper surface of the tooling table base. The slide rail is fixed inside the support plate. The slider slides on the slide rail. The second cross plate is fixed on the upper surface of the slider. The threaded rod simultaneously passes through the second cross plate and the slider in a threaded manner. The dial indicator passes through the second cross plate. The first cross plate is fixed on the outer wall of the dial indicator. The spring is fixed between the lower surface of the first cross plate and the upper surface of the second cross plate. The dial indicator passes through the spring. One end of the slide rod is fixed on the lower surface of the first cross plate, and the slide rod slides through the second cross plate.

[0009] In an embodiment of the present invention, the vertical rod includes a vertical rod body and a connecting ear plate. The connecting ear plate is fixed between the lower end of the vertical rod body and the upper surface of the tooling table base.

[0010] In an embodiment of the present invention, the support component further includes a first hand-held part, and the first hand-held part is fixed at the upper end of the vertical rod.

[0011] In an embodiment of the present invention, the support component further includes a rubber soft sleeve, and the rubber soft sleeve is fixed on the outer wall of the first hand-held part.

[0012] In an embodiment of the present invention, the support plate includes a plate body, and a groove is formed on the plate body. The slide rail is fixed in the groove.

[0013] In an embodiment of the present invention, the threaded rod includes a threaded rod body and a second hand-held part. The threaded rod body simultaneously passes through the second cross plate and the slider in a threaded manner, and the second hand-held part is fixed at the upper end of the threaded rod body.

[0014] In an embodiment of the present invention, the slide rod includes a slide rod body and a limiting plate. The slide rod body slides through the second cross plate, and the limiting plate is fixed at the lower end of the slide rod body.

[0015] In an embodiment of the present invention, the measuring component further includes a guide sleeve, and the guide sleeve is fixed inside the second cross plate. The slide rod slides through the guide sleeve.

[0016] In an embodiment of the present invention, the needle of the dial indicator and the tooling table base are perpendicularly arranged.

[0017] In an embodiment of the present invention, at least three sliders are provided, and the sliders are equidistantly arranged on the slide rail.

[0018] The beneficial effects of the present invention are as follows: A sunken oil seal flatness measuring device obtained through the above design is used as follows. When in use, first press the oil seal into the transfer case, place the tooling dial indicator base on the oil seal measurement reference surface of the transfer case, move the slider, control the position of the slider on the slide rail, so that the needle of the dial indicator can touch the end face of the oil seal. Hold the second cross plate and rotate the threaded rod. The end of the threaded rod presses against the outer wall of the slide rail, fixing the slider on the slide rail. Press the dial indicator, and the dial indicator vertically moves downward under the action of the slide rod, making the needle of the dial indicator touch the end face of the oil seal, and then read the reading. Release the dial indicator, and the dial indicator moves back to its original position under the reaction force of the spring. Rotate the vertical rod and move the direction of the tooling dial indicator base to measure about three points evenly spaced around the circumference of the oil seal at approximately 120 degrees. The value of the flatness of this oil seal is the maximum value minus the minimum value among the three readings on the dial indicator, and the flatness should be less than or equal to 0.1 mm. When the flatness is greater than 0.1 mm, re-press or replace the oil seal and re-install it until the pressing of the oil seal is qualified. This effectively avoids oil leakage after the transfer test machine due to unqualified flatness of the oil seal or oil leakage failure when it reaches the user, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 FIG. is a schematic structural diagram of a sunken oil seal flatness measuring device provided by an embodiment of the present invention;

[0021] Figure 2 FIG. is a schematic cross-sectional structural diagram of a sunken oil seal flatness measuring device provided by an embodiment of the present invention;

[0022] Figure 3 FIG. is a schematic cross-sectional structural diagram of a support assembly provided by an embodiment of the present invention;

[0023] Figure 4 FIG. is a top view of a tooling dial indicator base provided by an embodiment of the present invention;

[0024] Figure 5 FIG. is a schematic cross-sectional structural diagram of a measurement assembly provided by an embodiment of the present invention.

[0025] In the figure: 100 - support component; 110 - tooling table base; 120 - vertical rod; 121 - vertical rod body; 122 - connecting ear plate; 130 - first hand-held part; 140 - rubber soft sleeve; 200 - measuring component; 210 - support plate; 211 - plate body; 212 - groove; 220 - slide rail; 230 - slider; 240 - threaded rod; 241 - threaded rod body; 242 - second hand-held part; 250 - dial indicator; 260 - first cross plate; 270 - spring; 280 - slide bar; 281 - slide bar body; 282 - limit plate; 290 - guide sleeve; 291 - second cross plate. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0031] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal level than the second feature.

[0033] Embodiment

[0034] Please refer to Figures 1-5 , the present invention provides a technical solution: a sunken oil seal flatness measuring device, including a support assembly 100 and a measuring assembly 200. The measuring assembly 200 is fixed on the support assembly 100. This measuring device effectively avoids oil leakage after the trial run due to unqualified flatness of the oil seal or oil leakage when it reaches the user, improving the user experience.

[0035] Please refer to Figures 1-4, the support component 100 includes a tooling table base 110 and a vertical rod 120. The vertical rod 120 is fixed on the upper surface of the tooling table base 110 by bolts. The support component 100 further includes a first hand-held part 130, which is welded to the upper end of the vertical rod 120. The first hand-held part 130 facilitates the rotation of the tooling table base 110. In this embodiment, the first hand-held part 130 is a cross bar. The support component 100 further includes a rubber soft sleeve 140, which is welded to the outer wall of the first hand-held part 130. The rubber soft sleeve 140 protects the user's hand from being worn and damaged. The vertical rod 120 includes a vertical rod body 121 and a connecting ear plate 122. The connecting ear plate 122 is fixed between the lower end of the vertical rod body 121 and the upper surface of the tooling table base 110 by bolts. The connecting ear plate 122 facilitates the installation and fixation of the vertical rod body 121 on the tooling table base 110.

[0036] Please refer to Figure 2 and Figure 5, the measuring assembly 200 includes a support plate 210, a slide rail 220, a slider 230, a threaded rod 240, a dial indicator 250, a first cross plate 260, a spring 270, a slide rod 280 and a second cross plate 291. The support plate 210 is fixed on the upper surface of the tooling table base 110 by bolts. The slide rail 220 is fixed in the support plate 210 by bolts. The slider 230 slides on the slide rail 220. The support plate 210 includes a plate body 211, and a groove 212 is formed on the plate body 211. The slide rail 220 is fixed in the groove 212 by bolts. The groove 212 facilitates the installation of the slide rail 220 into the plate body 211. The second cross plate 291 is fixed on the upper surface of the slider 230 by bolts. The threaded rod 240 threadedly penetrates through the second cross plate 291 and the slider 230 at the same time. The threaded rod 240 includes a threaded rod body 241 and a second hand-held part 242. The threaded rod body 241 threadedly penetrates through the second cross plate 291 and the slider 230 at the same time. The second hand-held part 242 is welded to the upper end of the threaded rod body 241. The second hand-held part 242 facilitates the rotation of the threaded rod body 241. In this embodiment, the second hand-held part 242 is a handwheel. At least three sliders 230 are provided. The sliders 230 are equidistantly arranged on the slide rail 220. The multiple sliders 230 fix the second cross plate 291 in the support plate 210 more quickly. The dial indicator 250 penetrates through the second cross plate 291. The first cross plate 260 is fixed on the outer wall of the dial indicator 250 by bolts. The spring 270 is fixed between the lower surface of the first cross plate 260 and the upper surface of the second cross plate 291 by bolts. The dial indicator 250 penetrates through the spring 270. One end of the slide rod 280 is welded to the lower surface of the first cross plate 260. The slide rod 280 slidably penetrates through the second cross plate 291. The slide rod 280 includes a slide rod body 281 and a limit plate 282. The slide rod body 281 slidably penetrates through the second cross plate 291. The limit plate 282 is fixed to the lower end of the slide rod body 281 by bolts. The limit plate 282 effectively prevents the slide rod body 281 from sliding out of the second cross plate 291. The measuring assembly 200 further includes a guide sleeve 290. The guide sleeve 290 is welded in the second cross plate 291. The slide rod 280 slidably penetrates through the guide sleeve 290. The slide rod 280 enables the dial indicator 250 to move up and down more smoothly. The needle of the dial indicator 250 and the tooling table base 110 are perpendicularly arranged, making the measurement of the flatness of the oil seal plane by the dial indicator 250 more accurate.

[0037] Specifically, the working principle of the sunken oil seal flatness measuring device: When in use, first press the oil seal into the transfer case, place the tooling table base 110 on the oil seal measurement reference surface of the transfer case, move the slider 230, control the position of the slider 230 on the slide rail 220, so that the needle of the dial indicator 250 can touch the end face of the oil seal, hold the second cross plate 291, rotate the threaded rod 240, the end of the threaded rod 240 presses against the outer wall of the slide rail 220, so that the slider 230 is fixed on the slide rail 220, press the dial indicator 250, the dial indicator 250 vertically moves downward under the action of the slide rod 280, so that the needle of the dial indicator 250 touches the end face of the oil seal, and read the reading. Release the dial indicator 250, and the dial indicator 250 moves back to its original position under the reaction force of the spring 270. Rotate the vertical rod 120, move the direction of the tooling table base 110 to measure about three points evenly around the circumference of the oil seal at about 120 degrees. The maximum value minus the minimum value among the three readings on the dial indicator 250 is the flatness value of this oil seal. The flatness should be less than or equal to 0.1 mm. When the flatness is greater than 0.1 mm, press hard or replace the oil seal and reinstall it until the press-fitting of the oil seal is qualified. This effectively avoids oil leakage after the transfer test machine due to unqualified flatness of the oil seal or oil leakage failure when it reaches the user's hands, improving the user's experience.

[0038] It should be noted that the specific model and specification of the dial indicator 250 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0039] The power supply and its principle of the dial indicator 250 are clear to those skilled in the art and will not be elaborated here.

[0040] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sunken oil seal flatness measuring device, characterized in that including a support assembly (100), the support assembly (100) includes a tooling table base (110) and a vertical rod (120), the vertical rod (120) is fixed on the upper surface of the tooling table base (110); a measuring assembly (200), the measuring assembly (200) includes a support plate (210), a slide rail (220), a slider (230), a threaded rod (240), a dial indicator (250), a first cross plate (260), a spring (270), a slide rod (280) and a second cross plate (291), the support plate (210) is fixed on the upper surface of the tooling table base (110), the slide rail (220) is fixed inside the support plate (210), the slider (230) slides on the slide rail (220), the second cross plate (291) is fixed on the upper surface of the slider (230), the threaded rod (240) simultaneously threadedly penetrates the second cross plate (291) and the slider (230), the dial indicator (250) penetrates the second cross plate (291), the first cross plate (260) is fixed on the outer wall of the dial indicator (250), the spring (270) is fixed between the lower surface of the first cross plate (260) and the upper surface of the second cross plate (291), the dial indicator (250) penetrates the spring (270), one end of the slide rod (280) is fixed on the lower surface of the first cross plate (260), and the slide rod (280) slidably penetrates the second cross plate (291); wherein, the vertical rod (120) includes a vertical rod body (121) and a connecting ear plate (122), the connecting ear plate (122) is fixed between the lower end of the vertical rod body (121) and the upper surface of the tooling table base (110); the support assembly (100) further includes a first hand-held part (130), the first hand-held part (130) is fixed on the upper end of the vertical rod (120).

2. The flatness measurement device for a sunken oil seal according to claim 1, characterized in that, the support assembly (100) further includes a rubber soft sleeve (140), the rubber soft sleeve (140) is fixed on the outer wall of the first hand-held part (130).

3. The flatness measurement device for a sunken oil seal according to claim 1, wherein the support plate (210) includes a plate body (211), a groove (212) is formed in the plate body (211), and the slide rail (220) is fixed in the groove (212).

4. The flatness measuring device for a sunken oil seal according to claim 1, characterized in that, the threaded rod (240) includes a threaded rod body (241) and a second hand-held part (242), the threaded rod body (241) simultaneously threadedly penetrates the second cross plate (291) and the slider (230), and the second hand-held part (242) is fixed on the upper end of the threaded rod body (241).

5. The flatness measurement device for a sunken oil seal according to claim 1, wherein, the slide rod (280) includes a slide rod body (281) and a limit plate (282), the slide rod body (281) slidably penetrates the second cross plate (291), and the limit plate (282) is fixed on the lower end of the slide rod body (281).

6. The flatness measuring device for a sunken oil seal according to claim 1, wherein, The measurement component (200) further includes a guide sleeve (290) which is fixed in the second cross plate (291), and the slide bar (280) slides through the guide sleeve (290).

7. The flatness measurement device for a sunken oil seal according to claim 1, characterized in that The needle of the dial indicator (250) and the tooling gauge base (110) are arranged perpendicular to each other.

8. A sunken oil seal flatness measurement device according to claim 1, characterized in that, At least three sliders (230) are provided, and the sliders (230) are equidistantly arranged on the slide rail (220).

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