Symmetry degree testing fixture
By designing a symmetry test tool including a test tool seat and a detection mechanism, the problems of inconvenient operation and low accuracy of symmetry detection in the prior art are solved, and rapid and accurate detection of the products to be inspected are achieved.
Patent Information
- Application Number
- CN202422077633.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing symmetry detection methods have problems such as inconvenient operation and low measurement accuracy, making it difficult to accurately detect the symmetry of axle tool holder with keyways.
A symmetry detection tool including a test gear seat and a detection mechanism is designed. The detection mechanism includes a detection table, a plurality of detectors and measuring tools. The detector can move in the first direction and opposite directions. The measuring tool is used to detect the moving distance and realizes rapid and accurate detection of the product to be inspected.
The inspection tool can conveniently fix the product to be inspected, improve the detection accuracy, reduce structural interference, reduce detection difficulty, improve detection efficiency, and achieve rapid and accurate detection of the symmetry of the product to be inspected.
Smart Images
Figure CN222993654U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of detection equipment, and particularly relates to a symmetry gauge. Background Art
[0002] In the field of high-precision machining, there are many shaft-type tool holders with key grooves. The symmetry tolerance of the key grooves of these tool holders relative to the shaft is relatively high, and the detection is difficult. Measurement errors often occur due to inaccurate detection, which in turn affects the accuracy of the detection of other technical indicators, thus increasing the production cost.
[0003] However, the existing symmetry detection methods have the following defects: Currently, the traditional symmetry detection methods usually use vernier calipers or micrometers for manual measurement, which is inconvenient for measurement operations and has low measurement accuracy. Summary of the Invention
[0004] An object of the present application is to provide a symmetry gauge with convenient operation and high detection accuracy.
[0005] To achieve the above object, the technical solution adopted in the present application is: A symmetry gauge, including a gauge seat and at least one detection mechanism. The gauge seat is adapted to fix the product to be detected, and the detection mechanism is adapted to perform symmetry detection on the product to be detected. The detection mechanism includes a detection table, a plurality of detectors, and a measuring tool. The detectors are arranged on the detection table. One end of the detector is adapted to contact the product to be detected, and the detector is adapted to move relative to the detection table at least along a first direction and its opposite direction respectively. The measuring tool is fixedly arranged on the detection table, and the other end of the detector is adapted to contact and cooperate with the measuring tool. The measuring tool is adapted to detect the moving distance of the detector in the first direction.
[0006] In some embodiments, a cavity is provided on the gauge seat, and the cavity is adapted to accommodate at least part of the product to be detected. A locator is provided on the gauge seat, and part of the locator is adapted to extend into the cavity and limit the movement of the product to be detected at least in the first direction.
[0007] In some embodiments, when the locator cooperates with the product to be detected in the cavity, the detection position of the product to be detected coincides with the detection position of the detector.
[0008] In some embodiments, the gauge seat includes a first sub-seat and a second sub-seat. The locator is embedded between the first sub-seat and the second sub-seat, and the locator is detachably connected to the first sub-seat and / or the second sub-seat.
[0009] In some embodiments, a cavity is provided on the fixture base, the cavity is adapted to accommodate at least a part of the product to be inspected, at least one fixator is provided on the fixture base, a part of the fixator is adapted to extend into the cavity, and the length of the fixator extending into the cavity is adjustable.
[0010] In some embodiments, the number of the fixators is plural, and a part of at least some of the fixators extending into the cavity is an elastic telescopic structure.
[0011] In some embodiments, a rolling part is provided at one end of the detector in contact with the product to be inspected, and the rolling part is adapted to make rolling contact with the product to be inspected.
[0012] In some embodiments, the inspection table is rotatably connected to the fixture base, the inspection table is adapted to rotate, and to move the detector closer to or farther from the product to be inspected.
[0013] In some embodiments, a rotation operation handle extending away from the fixture base is provided on the inspection table; one end of the rotation operation handle away from the fixture base inclines upward relative to the fixture base.
[0014] In some embodiments, a cavity is provided on the fixture base, the cavity is adapted to accommodate at least a part of the product to be inspected, the number of the detection mechanisms is plural, and the detection mechanisms are arranged along the circumferential direction of the cavity.
[0015] Compared with the prior art, the beneficial effects of the present application are as follows: The symmetry inspection tool of the present application can conveniently fix the product to be inspected and perform cooperative positioning on the conventional structure of the product to be inspected, so as to improve the detection accuracy. By providing a detector, the structural interference between the product to be inspected and the measuring tool can be reduced, the structures and positions of the product to be inspected that are difficult to detect can be detected, the detection difficulty can be reduced, and the detection efficiency can be improved. The result is fed back to the measuring tool through the movement of the detector itself, so as to realize the rapid and accurate detection of the symmetry of the product to be inspected. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the state before detection according to a preferred embodiment of the present application.
[0017] Figure 2 is a schematic diagram of the state during detection according to a preferred embodiment of the present application.
[0018] Figure 3 is a schematic structural diagram of a detector according to a preferred embodiment of the present application.
[0019] Figure 4 is a top view according to a preferred embodiment of the present application.
[0020] Figure 5is according to a preferred embodiment of the present application Figure 4 The sectional view along the A-A direction in
[0021] Figure 6 is according to a preferred embodiment of the present application Figure 4 The sectional view along the B-B direction in
[0022] Figure 7 is according to a preferred embodiment of the present application Figure 4 The sectional view along the C-C direction in
[0023] In the figure: 1, fixture base; 11, cavity; 12, first sub-base; 13, second sub-base; 2, detection mechanism; 21, detection table; 22, detector; 221, rolling part; 23, measuring tool; 24, rotating operation handle; 3, product to be detected; 4, locator; 5, fixator; 6, screw; 7, spring. Specific embodiments
[0024] Next, in combination with specific embodiments, the present application will be further described. It should be noted that, on the premise of non-conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.
[0025] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present application 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 should not be construed as limiting the specific protection scope of the present application.
[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.
[0027] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.
[0028] The present application will be further described below with reference to the accompanying drawings:
[0029] As Figures 1 to 7 shown, the present application provides a symmetry gauge, including a gauge base 1 and at least one detection mechanism 2. The gauge base 1 is adapted to fix the product to be inspected 3, and the detection mechanism 2 is adapted to perform symmetry detection on the product to be inspected 3. The detection mechanism 2 includes a detection table 21, a plurality of detectors 22 and a measuring tool 23. The detectors 22 are arranged on the detection table 21. One end of the detector 22 is adapted to contact the product to be inspected 3, and the detector 22 is adapted to move relative to the detection table 21 at least along the first direction and its opposite direction respectively. The measuring tool 23 is fixedly arranged on the detection table 21, and the other end of the detector 22 is adapted to contact and cooperate with the measuring tool 23. The measuring tool 23 is adapted to detect the moving distance of the detector 22 in the first direction. During the symmetry detection process, the first direction generally refers to the width direction of the structure of the product to be inspected 3. When the product to be inspected 3 is a shaft-type tool holder with a keyway, the first direction is tangent to the circumferential direction of the shaft-type tool holder, so as to improve the detection accuracy.
[0030] As Figure 3 shown in the embodiment, the number of both the detectors 22 and the measuring tools 23 is two. The two detectors 22 can move relative to the detection table 21 at least along the first direction and its opposite direction respectively. The other end of the detector 22 is adapted to contact and cooperate with the measuring tool 23 one by one. The measuring tool 23 is adapted to detect the moving distance of the corresponding detector 22 in the first direction.
[0031] In some embodiments, the number of the detectors 22 is greater than two, and at least one detector 22 is arranged in the first direction and / or the opposite direction of the first direction. It can be understood that when the detection position of the product to be inspected 3 is uneven, multiple detectors 22 can be arranged at different positions in the same direction for detection to ensure the detection accuracy.
[0032] In some embodiments, the number of the measuring tools 23 is greater than two and not greater than the number of the detectors 22, and the measuring tool 23 can detect the moving distance of at least one detector 22 simultaneously.
[0033] In some embodiments, the measuring tool 23 preferably uses a micrometer, which has higher precision and is more convenient to observe.
[0034] As Figure 1 and 2 shown in the embodiment, a cavity 11 is arranged on the gauge base 1. The cavity 11 is adapted to accommodate at least part of the product to be inspected 3. The number of the detection mechanisms 2 is multiple, and the detection mechanisms 2 are arranged along the circumferential direction of the cavity 11. In the present application, the gauge base 1 is usually used to accommodate and fix finish machining tools such as shaft-type tool holders with keyways. The detection mechanisms 2 can be arranged along the circumferential direction of the shaft-type tool holder and perform symmetry detection on the keyways on the shaft-type tool holder.
[0035] In some embodiments, the number of the detection mechanisms 2 can be set according to the number of key grooves to be detected on the shaft - type tool shank.
[0036] It can be understood that by changing the shape of the gauge base 1 and the positional relationship between the gauge base 1 and the detection mechanism 2, the symmetry of structures such as inner holes can also be detected, which has high applicability.
[0037] As Figure 3 In the illustrated embodiment, a rolling part 221 is provided on one end of the detector 22 in contact with the product 3 to be detected. The rolling part 221 is adapted to make rolling contact with the product 3 to be detected. The rolling part 221 can reduce the frictional force between the detector 22 and the product 3 to be detected, reduce the matching difficulty between the detector 22 and the product 3 to be detected, and reduce the wear on the surface of the product 3 to be detected during the detection process. In addition, the rolling part 211 changes the contact form between the detector 22 and the product 3 to be detected into point contact, which can minimize the influence of the change in the key - groove plane on the moving position of the detector 22.
[0038] As Figure 1 In the illustrated embodiment, the detection table 21 is rotatably connected to the gauge base 1. The detection table 21 is adapted to rotate to move the detector 22 closer to or farther from the product 3 to be detected. The rotatable design of the detection table 21 can reduce the difficulty of placing the product 3 to be detected on the gauge base 1 and reduce the possible structural interference between the detection table 21 and the product 3 to be detected.
[0039] As Figure 3 In the illustrated embodiment, a rotation operation handle 24 extending away from the gauge base 1 is provided on the detection table 21. The rotation operation handle 24 can increase the operating force arm of the detection table 21, making the rotation of the detection table 21 more labor - saving. At the same time, it can also prevent the operator from contacting the detector 22 and the measuring tool 23 to ensure the accuracy of the detection.
[0040] As Figure 3 In the illustrated embodiment, one end of the rotation operation handle 24 away from the gauge base 1 is inclined upward above the gauge base 1. Generally, the gauge base 1 is placed flat on the surface of a support such as a table for use. The inclined design of the rotation operation handle 24 can keep it away from the table and reduce the probability of contact between the detection table 21 and the table during the rotation process.
[0041] As Figure 5 In the illustrated embodiment, a locator 4 is provided on the gauge base 1. A part of the locator 4 is adapted to extend into the cavity 11 and limit the movement of the product 3 to be detected at least in the first direction. The locator 4 is used to ensure the relative fixation of the product 3 to be detected and the detector 22 in the first direction, reduce the fluctuation of the detection result, and improve the accuracy of the detection.
[0042] It can be understood that by arranging the shape and position of the locator 4, the locator 4 can be adapted to the structures of a variety of different products 3 to be inspected simultaneously, achieving universal fixation. Moreover, the locator 4 can support the product 3 to be inspected to a certain extent, improving the stability of the product 3 to be inspected.
[0043] As Figure 2 , 4 In the embodiment shown in FIGS. 5, when the locator 4 cooperates with the product 3 to be inspected in the cavity 11, the detection position of the product 3 to be inspected coincides with the detection position of the detector 22. The locator 4 is used to achieve pre-positioning of the inspection of the product 3 to be inspected, reducing subsequent adjustments and improving the inspection efficiency.
[0044] As Figure 5 In the embodiment shown, the fixture base 1 includes a first sub-base 12 and a second sub-base 13. The locator 4 is embedded between the first sub-base 12 and the second sub-base 13. The locator 4 is detachably connected to the first sub-base 12 and / or the second sub-base 13. The split structure of the fixture base 1 can reduce the installation difficulty of the locator 4 and also facilitate the replacement of locators 4 of different specifications to adapt to different specifications of the products 3 to be inspected.
[0045] As Figure 6 In the embodiment shown, at least one fixator 5 is provided on the fixture base 1. A part of the fixator 5 is adapted to extend into the cavity 11. The length of the fixator 5 extending into the cavity 11 is adjustable. The fixator 5 can reduce the movement space of the product 3 to be inspected in the cavity 11, preventing the product 3 to be inspected from moving relative to the fixture base 1 and the detection mechanism 2 before and after inspection, so as to improve the detection accuracy.
[0046] In some embodiments, one end of the fixator 5 away from the cavity 11 communicates with the outside, and a screw 6 connected by an external thread is provided. An internal hexagonal hole is provided on the screw 6. By operating the internal hexagonal hole, the position of the screw 6 in the fixture base 1 can be changed, driving the fixator 5 to move.
[0047] As Figure 7 In the embodiment shown, the number of fixators 5 is multiple. At least a part of the fixators 5 extending into the cavity 11 is an elastic telescopic structure. The elastic design of some fixators 5 can reduce the pressure on the product 3 to be inspected, protecting the product 3 to be inspected from damage. At the same time, it can also perform adaptive positioning of the product 3 to be inspected without manual adjustment, thus improving the inspection efficiency.
[0048] In some embodiments, the elastic telescopic structure of the fixator 5 is to provide a spring 7 between the fixator 5 and the screw 6. The elastic movement of the fixator 5 is realized by the elastic force of the spring 7. To improve the stability of the spring 7, a sleeve can also be provided outside the fixator 5, the spring 7 and the screw 6 to form an integral body for convenient installation and disassembly.
[0049] In some embodiments, two fixtures 5 are respectively arranged on both sides of the fixture base 1, so that the product 3 to be inspected can be restricted to a similar state each time.
[0050] Through different forms of fixtures 5, the position of the product 3 to be inspected can be stably restricted, so as to control the position variables of the product 3 to be inspected as consistent as possible during each detection process.
[0051] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. A symmetry inspection tool, characterized in that: The invention comprises a gauge seat and at least one detection mechanism, wherein the gauge seat is suitable for fixing the product to be inspected, the detection mechanism is suitable for performing symmetry detection on the product to be inspected, the detection mechanism comprises a detection platform, a plurality of detectors and a measuring tool, the detector is arranged on the detection platform, one end of the detector is suitable for contacting the product to be inspected, and the detector is suitable for moving relative to the detection platform at least along a first direction and an opposite direction thereof, the measuring tool is fixedly arranged on the detection platform, the other end of the detector is suitable for contacting and cooperating with the measuring tool, and the measuring tool is suitable for detecting the moving distance of the detector in the first direction.
2. A symmetry inspection tool as claimed in claim 1, characterized in that: The inspection fixture seat is provided with a cavity, which is suitable for accommodating at least part of the product to be inspected. The inspection fixture seat is provided with a positioner, part of which is suitable for extending into the cavity and limiting the movement of the product to be inspected in at least a first direction.
3. A symmetry inspection tool as claimed in claim 2, characterized in that: When the positioner cooperates with the product to be inspected in the cavity, the detection position of the product to be inspected coincides with the detection position of the detector.
4. A symmetry inspection tool as claimed in claim 2, characterized in that: The inspection fixture seat comprises a first sub-seat and a second sub-seat, the locator is embedded between the first sub-seat and the second sub-seat, and the locator is detachably connected to the first sub-seat and / or the second sub-seat.
5. A symmetry inspection tool as claimed in claim 1, characterized in that: The inspection fixture seat is provided with a cavity, which is suitable for accommodating at least part of the product to be inspected. The inspection fixture seat is provided with at least one fixture, part of which is suitable for extending into the cavity, and the length of the fixture extending into the cavity is adjustable.
6. A symmetry inspection tool as claimed in claim 5, characterized in that: There are multiple fixers, and at least some of the parts of the fixers extending into the cavity are elastic and retractable structures.
7. A symmetry inspection tool as claimed in claim 1, characterized in that: A rolling portion is arranged on one end of the detector that contacts the product to be inspected, and the rolling portion is suitable for rolling contact with the product to be inspected.
8. A symmetry inspection tool as claimed in claim 1, characterized in that: The detection platform is rotatably connected to the inspection fixture seat, and the detection platform is suitable for rotating to make the detector approach or move away from the product to be inspected.
9. A symmetry inspection tool as claimed in claim 8, characterized in that: The testing platform is provided with a rotating operating handle extending in a direction away from the gauge seat; one end of the rotating operating handle away from the gauge seat is inclined upwards of the gauge seat.
10. A symmetry inspection tool as claimed in claim 1, characterized in that: The inspection fixture seat is provided with a cavity, which is suitable for accommodating at least part of the product to be inspected. There are multiple inspection mechanisms, which are arranged along the circumference of the cavity.