Round part ovality detection device
By introducing a sliding block and indicator structure into the ellipticity detection device for circular parts, the problem of limited adjustment distance of the indicator position in the prior art is solved, realizing universal adaptability detection of circular parts of different sizes, reducing costs and improving detection efficiency and accuracy.
Patent Information
- Application Number
- CN202520451409.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In the existing technology, the indicator position adjustment distance of the circular part ellipticity detection device is limited, which makes it unsuitable for circular parts with large size differences, resulting in poor versatility and high cost of the detection equipment.
A device for detecting the ellipticity of circular parts was designed. It adopts a sliding block and indicator structure. The position of the indicator can be adjusted by the sliding block to adapt to circular parts of different sizes within a large range. Combined with clamping blocks and elastic elements, it provides stable positioning and ensures measurement accuracy.
It improves the versatility and ease of operation of the testing device, reduces the cost of replacing testing equipment, improves testing efficiency and accuracy, and simplifies equipment maintenance.
Smart Images
Figure CN223783549U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of ellipticity detection technology for circular parts, and more specifically, to a device for detecting the ellipticity of circular parts. Background Technology
[0002] Circular parts are divided into cylindrical and annular shapes, and are used in fields such as aerospace, precision instruments, and high-end mechanical transmission. These fields have high requirements for the machining accuracy of circular parts, and one important accuracy parameter is ellipticity.
[0003] Existing devices for detecting the ellipticity of circular parts typically use a slot to position the circular part, then bring the indicator probe into contact with the surface of the part. The operator rotates the part one full turn while it is pressed against the slot, and the ellipticity is determined by the amount of runout of the indicator. However, in practical use, the operator can only adjust the position of the indicator to bring the probe into contact with the part. For circular parts with significant size differences, a single device is no longer suitable. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a circular part ellipticity detection device, which solves the technical problem of limited adjustment distance of the indicator position in the prior art.
[0005] According to one aspect, at least one embodiment of this disclosure provides an ellipticity detection device for circular parts, comprising:
[0006] main body;
[0007] A positioning block is disposed on the main body, the positioning block having a slot for abutting against the side wall of a circular part;
[0008] A sliding block is slidably disposed on the main body, and the sliding block is arranged to move closer to or further away from the slot after sliding.
[0009] An indicator is disposed on the sliding block, the indicator having a probe facing the circular part.
[0010] For example, in a circular part ellipticity detection device provided in at least one embodiment of this disclosure, the indicator is slidably disposed on the sliding block.
[0011] For example, in a circular part ellipticity detection device provided in at least one embodiment of this disclosure, the sliding block and the slot are respectively located on opposite sides of the circular part, and the sliding direction of the sliding block is parallel to the center line of the slot.
[0012] For example, in a circular part ellipticity detection device provided in at least one embodiment of this disclosure, the probe faces the apex of the slot, and the sliding direction of the indicator is parallel to the center line of the slot.
[0013] For example, in at least one embodiment of the present disclosure, a device for detecting the ellipticity of a circular part further includes a fixing component, which includes:
[0014] A bolt, which passes through the sliding block and the body;
[0015] A nut is threadedly connected to the bolt, and the nut and the bolt are used to fix the sliding block.
[0016] For example, in a circular part ovality detection device provided in at least one embodiment of this disclosure, the sliding block has a sliding hole and a threaded hole, the threaded hole communicates with the sliding hole, the bushing of the indicator is slidably disposed in the sliding hole, and the fixing assembly further includes:
[0017] A screw is threaded into the threaded hole, and the screw is used to tighten and fix the bushing of the indicator.
[0018] According to another aspect, at least one embodiment of this disclosure also provides a device for detecting the ellipticity of a circular part, further comprising:
[0019] The first clamping block is slidably mounted on the sliding block;
[0020] The second clamping block is slidably disposed on the sliding block, and there is an angle between the first clamping block and the second clamping block. The first clamping block and the second clamping block are used to push the circular part closer to the slot.
[0021] For example, in a circular part ellipticity detection device provided in at least one embodiment of this disclosure, the first clamping block and the second clamping block are respectively located on both sides of the center line of the slot, and the first clamping block and the second clamping block are far apart from each other in the direction close to the slot.
[0022] For example, in at least one embodiment of the present disclosure, a circular part ellipticity detection device further includes:
[0023] The first elastic element has two ends respectively disposed on the first clamping block and the sliding block. The first elastic element is used to elastically push the first clamping block to slide closer to the slot.
[0024] The second elastic element is disposed at both ends on the second clamping block and the sliding block respectively. The second elastic element is used to elastically push the second clamping block to slide closer to the slot.
[0025] For example, in a circular part ellipticity detection device provided in at least one embodiment of this disclosure, the intersection of the sliding direction of the first clamping block and the sliding direction of the second clamping block is located on the center line of the slot, and the angle between the sliding direction of the first clamping block and the sliding direction of the second clamping block is the same as the angle between the first clamping block and the second clamping block.
[0026] The beneficial effects of the embodiments disclosed herein are as follows:
[0027] In this disclosure, by setting a sliding block, the indicator can be adjusted within a wide range, effectively solving the problem of limited adjustment distance of the indicator in the prior art. This makes the testing device applicable to various circular parts with large size differences, greatly improving the device's versatility and eliminating the need to change different testing equipment for different sized circular parts, thus reducing testing costs. The device structure is relatively simple; the indicator position can be adjusted manually by sliding the sliding block, making operation convenient and quick. Compared to some complex testing equipment, operators can more easily master the operation method, improving testing efficiency. At the same time, this simple structure also facilitates equipment maintenance and upkeep. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0029] Figure 1 This is a structural schematic diagram of Embodiment 1 of this disclosure from a first angle;
[0030] Figure 2 This is a structural schematic diagram of Embodiment 1 of this disclosure from a second angle;
[0031] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this disclosure;
[0032] In the diagram: 200, main body; 300, positioning block; 310, slot; 100, circular part; 400, sliding block; 500, indicator; 510, probe; 600, fixing assembly; 610, bolt; 620, nut; 410, sliding hole; 420, threaded hole; 520, bushing; 630, screw; 710, first clamping block; 720, second clamping block; 810, first elastic element; 820, second elastic element. Detailed Implementation
[0033] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0034] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0036] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0037] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0039] Example 1
[0040] like Figures 1-2The diagram illustrates an ellipticity detection device for a circular part 100 according to an embodiment of this disclosure. The device includes a positioning block 300, a main body 200, a sliding block 400, and an indicator 500. During installation, the main body 200 is first placed on a stable workbench, providing a stable support base for the device and the circular part 100. The positioning block 300 is fixedly mounted on the main body 200, with the opening of the slot 310 on the positioning block 300 facing the placement position of the circular part 100. The sliding block 400 is mounted on the main body 200 via a guide rail slider structure. The direction of the guide rail can be arranged in any direction that allows it to approach or move away from the slot 310, allowing the sliding block 400 to slide along the guide rail towards or away from the slot 310. The indicator 500 is securely mounted on the sliding block 400 via a mounting base, ensuring that the probe 510 of the indicator 500 is accurately oriented towards the circular part 100 placed on the main body 200.
[0041] One of the best implementation methods is to arrange the card slot 310 in a V-shape and use a dial indicator 500.
[0042] The circular part 100, whose ellipticity is to be tested, is placed in the slot 310 of the positioning block 300. The slot 310 abuts against the side wall of the circular part 100, initially positioning the part 100 and placing it in a relatively stable position. Depending on the size of the circular part 100, the sliding block 400 is manually pushed, moving it closer to or away from the slot 310 along the guide rail. As the sliding block 400 moves, the indicator 500 mounted on it also moves, adjusting the distance between the indicator 500 probe 510 and the surface of the circular part 100 until the probe 510 lightly touches the surface of the circular part 100 and the indicator 500 pointer produces an initial reading. The circular part 100 is then manually and slowly rotated, completing one revolution around its own axis within the V-groove. During rotation, due to the potential ellipticity of the circular part 100, its surface may cause vertical displacement of the indicator 500 probe 510, resulting in fluctuations in the indicator 500 pointer. Record the maximum and minimum values of the pointer jump of indicator 500. The difference between the two values is the ellipticity of the circular part 100.
[0043] By incorporating a sliding block 400, the indicator 500 can be adjusted within a wide range, effectively solving the problem of limited adjustment distance for the indicator 500 in existing technologies. This allows the testing device to be applied to various circular parts 100 with significant size differences, greatly improving its versatility and eliminating the need to replace different testing equipment for different sized circular parts 100, thus reducing testing costs. The device has a relatively simple structure; the position of the indicator 500 can be adjusted by manually sliding the sliding block 400, making operation convenient and quick. Compared to some complex testing equipment, operators can more easily master the operation method, improving testing efficiency. Furthermore, this simple structure facilitates equipment maintenance and upkeep.
[0044] In some examples, the indicator table 500 is slidably set on the slider 400.
[0045] The specific arrangement is as follows: a straight groove is machined on the sliding block 400 along the radial direction of the circular part 100. The cross-sectional shape of the groove is dovetail-shaped or T-shaped. The bottom mounting base of the indicator 500 is designed to match the shape of the groove. For example, if the groove is dovetail-shaped, the bottom of the mounting base also has a corresponding dovetail structure. A fastening knob is provided on the mounting base. After the mounting base is inserted into the groove of the sliding block 400 through the dovetail structure, rotating the fastening knob makes the mounting base fit tightly with the groove, thereby fixing the indicator 500 in a specific position on the sliding block 400. When it is necessary to adjust the position of the indicator 500, the fastening knob is loosened, and the indicator 500 can slide freely within the groove.
[0046] After initially positioning the circular part 100 in the slot 310 of the positioning block 300 and coarsely adjusting the position of the indicator 500 using the sliding block 400, further fine-tuning of the indicator 500's position is performed. For example, when testing a small circular part 100, if the distance between the indicator 500 probe 510 and the part surface is found to be slightly too far after coarse adjustment, loosen the fastening knob on the mounting base and manually push the indicator 500 along the slide groove towards the circular part 100 until the probe 510 lightly contacts the part surface and the indicator 500 pointer produces a suitable initial reading. Then, tighten the fastening knob to fix the indicator 500. When testing circular parts 100 of different sizes, if a larger circular part 100 is used, it may be necessary to slide the indicator 500 a certain distance away from the slot 310 along the slide groove to ensure that the probe 510 can contact the part surface. Similarly, loosen the fastening knob, move the indicator 500 to the appropriate position, and then fix it.
[0047] On the other hand, the sliding method of the indicator 500 on the slider 400 can adapt to the sliding of the slider 400 in various directions. For example, in one possible way, the sliding direction of the indicator 500 is perpendicular to the sliding direction of the slider 400. By adjusting the sliding of the slider 400 and the indicator 500, the probe 510 can be oriented toward the center of the circular part 100, thereby improving the measurement accuracy.
[0048] By sliding the indicator 500, the initial value of the indicator 500 can be adjusted without adjusting the position of the slider 400, making it easier for operators to record and observe, thereby further improving measurement accuracy.
[0049] In some examples, the main body 200 is a rectangular flat plate structure made of high-strength aluminum alloy, ensuring sufficient strength and stability when supporting the circular part 100 and other components, while reducing the overall weight of the device. A positioning block 300 is fixed to one edge of the main body 200, with the center line of the slot 310 on the positioning block 300 parallel to the edge of the main body 200. For example, by creating a positioning groove on the main body 200, the positioning block 300 is embedded in the groove and then securely fixed using welding. On the opposite edge of the main body 200, a linear guide rail adapted to the sliding block 400 is installed. The length of the guide rail is determined based on the maximum size of the circular part 100 that may be detected, ensuring that the sliding block 400 has sufficient range of motion. A slider matching the guide rail is installed at the bottom of the sliding block 400, and the slider is welded to the sliding block 400, ensuring that the sliding block 400 can slide smoothly along the guide rail in a direction parallel to the center line of the slot 310. The indicator 500 is mounted on the sliding block 400 via a mounting base with a fastening knob that is adapted to the slide groove of the sliding block 400, and the probe 510 of the indicator 500 faces the circular part 100 located in the slot 310.
[0050] The indicator 500 can perform measurements from a direction opposite to the positioning reference. Measurements with the indicator 500 and the positioning reference in the same direction do not interfere with each other, resulting in a simpler layout.
[0051] In some examples, the probe 510 is oriented toward the apex of the slot 310, and the sliding direction of the indicator 500 is parallel to the center line of the slot 310.
[0052] The sliding direction of the indicator 500 is parallel to the center line of the slot 310, which ensures that the probe 510 of the indicator 500 always faces the center of the circular part 100, thus ensuring the accuracy of the measurement by the indicator 500.
[0053] In some examples, a fixing component 600 is also included, which includes a bolt 610 that passes through the sliding block 400 and the body 200; a nut 620 is threaded to the bolt 610 and the nut 620 and the bolt 610 are used to fix the sliding block 400.
[0054] After the sliding block 400 slides along the slide rail to a fixed position, it can be fixed by tightening the nut 620. The fixing direction of the bolt 610 and nut 620 is not only simple to operate, but also ensures the stability of the sliding block 400 when it is stationary.
[0055] In some examples, the slider 400 has a sliding hole 410 and a threaded hole 420 communicating with the sliding hole 410. The bushing 520 of the indicator 500 is slidably disposed within the sliding hole 410. The fixing assembly 600 also includes a screw 630 threadedly connected to the threaded hole 420. The screw 630 is used to tighten and fix the bushing 520 of the indicator 500.
[0056] The sliding hole precisely restricts the sliding direction of the indicator 500, ensuring measurement accuracy. The indicator 500 is secured by using the threaded hole 420 and screws 630 to tighten the bushing 520, which is not only simple to operate but also highly stable.
[0057] Example 2
[0058] like Figure 3 As shown, it illustrates a circular part ellipticity detection device in another embodiment of this disclosure, which is largely the same as the technical solution of embodiment 1, so only the differences are described.
[0059] In some examples, a first clamping block 710 is also included, which is slidably disposed on the sliding block 400; a second clamping block 720 is slidably disposed on the sliding block 400, and the first clamping block 710 and the second clamping block 720 have an included angle between them, and the first clamping block 710 and the second clamping block 720 are used to push the circular part 100 closer to the slot 310.
[0060] Based on Embodiment 1, a first clamping block 710 and a second clamping block 720 are added. The first clamping block 710 and the second clamping block 720 can slide to push the circular part 100 to fit tightly against the slot 310, so as to avoid the circular part 100 changing its position due to operator error during rotation, thereby affecting the test results.
[0061] In some examples, the first clamping block 710 and the second clamping block 720 are located on both sides of the center line of the card slot 310, and the first clamping block 710 and the second clamping block 720 are far apart from each other in the direction close to the card slot 310.
[0062] The first clamping block 710 and the second clamping block 720 are arranged in a V-shape. The first clamping block 710, the second clamping block 720 and the slot 310 act on both sides of the circular part 100, which can ensure the accuracy and stability of the positioning of the circular part 100.
[0063] In some examples, the ellipticity detection device for a circular part 100 further includes a first elastic element 810, with its two ends respectively disposed on the first clamping block 710 and the sliding block 400. The first elastic element 810 is used to elastically push the first clamping block 710 to slide closer to the slot 310. The second elastic element 820 has its two ends respectively disposed on the second clamping block 720 and the sliding block 400. The second elastic element 820 is used to elastically push the second clamping block 720 to slide closer to the slot 310.
[0064] The first elastic element 810 and the second elastic element 820 can not only provide a stable clamping force for the operator during the rotation of the circular part 100, but also enable the first clamping block 710 and the second clamping block 720 to adapt to circular parts 100 of different diameters within a certain range without moving the sliding block 400, thereby improving the applicability of the device.
[0065] In some examples, the intersection of the sliding direction of the first clamp 710 and the sliding direction of the second clamp 720 is located on the center line of the slot 310, and the angle between the sliding directions of the first clamp 710 and the second clamp 720 is the same as the angle between the first clamp 710 and the second clamp 720.
[0066] The sliding directions of the first clamping block 710 and the second clamping block 720 can ensure that the contact points between the first clamping block 710 and the second clamping block 720 and the circular part 100 are symmetrical, thereby further improving the stability of the circular part 100.
[0067] In practical use, first adjust the position of the sliding block 400, then place the circular part 100 between the first clamping block 710, the second clamping block 720, and the slot 310. Fine-tune the indicator 500 so that the probe 510 can contact the circular part 100 and have a certain initial value. The operator rotates the circular part 100 one revolution and records the jump value of the indicator 500 during the process. The jump value of the indicator 500 is the ellipticity of the circular part 100.
[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A device for detecting the ellipticity of circular parts, characterized in that, include: Main body (200); A positioning block (300) is disposed on the main body (200), the positioning block (300) having a slot (310) for abutting against the side wall of the circular part (100); A sliding block (400) is slidably disposed on the main body (200), and the sliding block (400) is arranged to slide closer to or further away from the slot (310). An indicator (500) is disposed on the sliding block (400), the indicator (500) having a probe (510) facing the circular part (100).
2. The ellipticity detection device for circular parts according to claim 1, characterized in that, The indicator (500) is slidably mounted on the sliding block (400).
3. The ellipticity detection device for circular parts according to claim 2, characterized in that, The sliding block (400) and the slot (310) are respectively located on opposite sides of the circular part (100), and the sliding direction of the sliding block (400) is parallel to the center line of the slot (310).
4. The ellipticity detection device for circular parts according to claim 3, characterized in that, The probe (510) is oriented toward the apex of the slot (310), and the sliding direction of the indicator (500) is parallel to the center line of the slot (310).
5. The ellipticity detection device for circular parts according to claim 1, characterized in that, It also includes a fixing component (600), which includes: Bolt (610) passes through the sliding block (400) and the body (200). A nut (620) is threadedly connected to the bolt (610), and the nut (620) and the bolt (610) are used to fix the sliding block (400).
6. The ellipticity detection device for a circular part according to claim 5, characterized in that, The sliding block (400) has a sliding hole (410) and a threaded hole (420), the threaded hole (420) communicating with the sliding hole (410), the bushing (520) of the indicator (500) being slidably disposed within the sliding hole (410), and the fixing assembly (600) further includes: A screw (630) is threaded into the threaded hole (420), the screw (630) being used to tighten the bushing (520) that secures the indicator (500).
7. The ellipticity detection device for circular parts according to claim 1, characterized in that, Also includes: The first clamping block (710) is slidably disposed on the sliding block (400); The second clamping block (720) is slidably disposed on the sliding block (400). The first clamping block (710) and the second clamping block (720) have an included angle. The first clamping block (710) and the second clamping block (720) are used to push the circular part (100) closer to the slot (310).
8. The ellipticity detection device for a circular part according to claim 7, characterized in that, The first clamping block (710) and the second clamping block (720) are located on both sides of the center line of the slot (310), and the first clamping block (710) and the second clamping block (720) are far apart from each other in the direction close to the slot (310).
9. The ellipticity detection device for a circular part according to claim 7, characterized in that, The ellipticity detection device for the circular part (100) further includes: The first elastic element (810) is disposed at both ends on the first clamping block (710) and the sliding block (400) respectively. The first elastic element (810) is used to elastically push the first clamping block (710) to slide closer to the slot (310). The second elastic element (820) is disposed at both ends on the second clamping block (720) and the sliding block (400) respectively. The second elastic element (820) is used to elastically push the second clamping block (720) to slide closer to the slot (310).
10. The ellipticity detection device for a circular part according to claim 8, characterized in that, The intersection of the sliding direction of the first clamping block (710) and the sliding direction of the second clamping block (720) is located on the center line of the slot (310), and the angle between the sliding direction of the first clamping block (710) and the sliding direction of the second clamping block (720) is the same as the angle between the first clamping block (710) and the second clamping block (720).