Measuring support device and measuring device

Abstract

The measuring support device and the measuring device of the present disclosure comprise a base and a support assembly. The support assembly is arranged on the base and comprises a plurality of support portions distributed on the surface of the base. The plurality of support portions are arranged corresponding to one side of a workpiece to be measured and are used to support the protruding part of the workpiece to be measured in a shape fitting manner, so as to avoid the front and / or rear surface of the workpiece to be measured and support the workpiece to be measured in a measuring position. The measuring support device and the measuring device of the present disclosure can expose the front and / or rear surface of the workpiece to be measured, and it is difficult to deform and damage the workpiece to be measured.

Description

Technical Field

[0001] This disclosure relates to the field of measurement technology, and in particular to a support device and measuring device for three-dimensional measurement. Background Technology

[0002] During CMM measurement, the workpiece to be measured needs to be held in a measured position with the measured part exposed for contact measurement by the probe. Holding the workpiece in the measured position is usually achieved by clamping it with a fixture, such as a bench vise, so that the coordinate measuring machine probe can make contact measurement.

[0003] However, fixtures are unsuitable for workpieces with multiple test sections on the front / back and made of relatively soft materials. For example, fixtures are unsuitable for the rear housing of a reducer made of aluminum alloy and having multiple test holes. On the one hand, the clamping plates of the fixture can easily obstruct part of the test section, preventing the probe from contacting all the front / back sections. On the other hand, the clamping can easily deform and damage the relatively soft workpiece. Summary of the Invention

[0004] In view of the above-described disadvantages of the prior art, the purpose of this disclosure is to provide a support device and a measuring device for measuring, which allows the front and / or rear surfaces of the part to be measured of the workpiece to be exposed, and makes it difficult for the workpiece to be measured to be deformed or damaged.

[0005] This disclosure provides a measuring support device, including: a base; and a support assembly disposed on the base, including a plurality of support portions distributed on the surface of the base; the plurality of support portions are disposed corresponding to one side of a workpiece to be measured, and are shaped to fit and support the protruding portion of the workpiece to be measured, so as to support the workpiece to be measured at the measurement position while avoiding the measurement portion on the front and / or rear surface of the workpiece to be measured.

[0006] According to some embodiments provided in this disclosure, the plurality of support portions include: an edge support portion for supporting the edge portion of a plurality of edge test portions on the front and / or rear surfaces, avoiding the edge of the workpiece to be tested; and at least one intermediate support portion for supporting the intermediate portion of the intermediate test portion and the edge test portions on the front and / or rear surfaces, avoiding the middle portion of the workpiece to be tested.

[0007] According to some embodiments provided in this disclosure, the top surface of the edge support portion is a continuous surface for support, and the continuous surface extends concavely from both ends toward the middle to limit the position of the workpiece to be tested.

[0008] According to some embodiments provided in this disclosure, there is one intermediate support portion, which is spaced apart from the edge support portion; or there are multiple intermediate support portions, which include: a first support portion, which is spaced apart from the edge support portion to support the first test portion and the front and / or rear surfaces of the first test portion and the edge test portion, avoiding the middle of the workpiece to be tested; and a second support portion, which is spaced apart from the first support portion to support the second test portion and the front and / or rear surfaces of the second test portion and the edge test portion, avoiding the middle of the workpiece to be tested.

[0009] According to some embodiments provided in this disclosure, the supporting surface of the first supporting part and the supporting surface of the second supporting part are respectively located on two relatively far sides of the first part to be tested and the second part to be tested, and cooperate to limit the position of the workpiece to be tested.

[0010] According to some embodiments provided in this disclosure, the intermediate support portion is provided with a clearance opening for avoiding the front and / or rear surfaces of the edge to be measured portion.

[0011] According to some embodiments provided in this disclosure, the edge support portion is provided with a limiting member on the side opposite to the intermediate support portion.

[0012] According to some embodiments provided in this disclosure, the support portion and / or the base are provided with weight-reducing holes.

[0013] According to some embodiments provided in this disclosure, the base is provided with a grip.

[0014] This disclosure also provides a measuring device, including: a measuring body having a measuring platform and a contact probe, wherein the measuring platform has a position to be measured, the contact probe is located above the measuring platform, and the measuring range includes the position to be measured; and a measuring support device as described in any of the above embodiments, disposed at the position to be measured for measurement by the contact probe.

[0015] Beneficial effects:

[0016] (1) The measuring support device and measuring device disclosed herein allow the front and / or rear surfaces of the part to be measured of the workpiece to be exposed, and make it difficult for the workpiece to be measured to be deformed or damaged.

[0017] (2) The measuring support device and measuring device disclosed herein can limit the workpiece to be measured, making it difficult for the workpiece to move and providing good stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the measuring support device of this disclosure at an angle during operation.

[0019] Figure 2 This is a schematic diagram of the structure of the measuring support device according to an embodiment of the present disclosure.

[0020] Figure 3 This is a schematic diagram of the measuring support device according to an embodiment of the present disclosure at another angle during operation.

[0021] Figure label:

[0022] 11. Base; 111. Fixing hole; 112. Grip part;

[0023] 12. Edge support portion; 121a. First concave surface; 121b. Second concave surface; 121c. Third concave surface; 121d. Fourth concave surface; 121e. Fifth concave surface; 121f. Sixth concave surface; 121g. Seventh concave surface; 121h. Eighth concave surface; 122. First weight reduction hole; 123. Second weight reduction hole;

[0024] 13. First support part; 131. Limiting concave surface; 132. First avoidance opening;

[0025] 14. Second support portion; 142. Low concave surface; 143. High concave surface; 144. Second avoidance opening;

[0026] 15. Limiting components;

[0027] 900. Workpiece to be tested; 91. Edge to be tested; 92. First part to be tested; 93. Second part to be tested. Detailed Implementation

[0028] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0029] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0030] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.

[0031] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0032] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0033] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0034] While the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, module, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0035] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0036] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0037] In related technologies, fixtures are difficult to apply for maintaining the position of workpieces with multiple test sections on the front / back and made of relatively soft material on the measuring device. For example, fixtures are difficult to apply to the rear housing of a reducer made of aluminum alloy and having multiple test holes. On the one hand, the clamping plates of the fixture can easily block part of the test section, preventing the probe from contacting all the front / back sections. On the other hand, the clamping can easily deform the soft workpiece, damaging it.

[0038] In view of this, the present disclosure provides a measuring support device for supporting the workpiece to be measured at a measuring position, so that the front and / or rear surfaces of all the parts to be measured of the workpiece can be exposed, which facilitates the probe of the measuring device to make contact measurement of the parts to be measured, and makes it difficult to deform or damage the workpiece to be measured, thus helping to protect the workpiece to be measured.

[0039] Figure 1 This is a schematic diagram of the measuring support device of this disclosure at an angle during operation. Figure 2 This is a schematic diagram of the measuring support device according to an embodiment of this disclosure. (See also...) Figure 1 and Figure 2 The measuring support device disclosed herein includes a base 11 and a support assembly.

[0040] Optionally, the base 11 is flat to facilitate the installation of the support assembly. The base 11 has multiple fixing holes 111 through which fasteners (e.g., bolts) pass and are fixed to the measuring platform of the measuring device. The base 11 is positioned below the contact probe to facilitate measurement by the contact probe.

[0041] Optionally, the base 11 is provided with a grip portion 112, such as a grip handle, thereby facilitating the carrying and transport of the measuring support device, facilitating the transfer of the measuring support device to the measuring table, and facilitating the transfer of the measuring support device away from the measuring table.

[0042] The support assembly is disposed on the base 11, and the support assembly includes a plurality of support portions distributed on the surface of the base 11. The plurality of support portions are disposed corresponding to one side of a workpiece 900 to be tested, and the plurality of support portions are shaped to fit and support the protruding portion of the workpiece 900 to be tested, thereby supporting the workpiece 900 in the testing position while avoiding the testing portion on the front and / or rear surface of the workpiece 900. It is worth noting that the front and / or rear surface of the workpiece 900 here can be broadly understood as the two opposing surfaces of the workpiece 900, such as the front and / or back, left and / or right surfaces. In this disclosure, directional terms are used to locate different surfaces of the workpiece 900 for the convenience of those skilled in the art to understand this disclosure based on the accompanying drawings, and should not be considered as a limitation on the orientation of this disclosure.

[0043] Optionally, the workpiece 900 to be tested has a plurality of edge test portions 91 arranged circumferentially around its edge. The workpiece 900 to be tested also has a middle test portion surrounded by the plurality of edge test portions 91 and located in the middle, and the middle test portion has a different front-rear position from the edge test portions 91. Optionally, the edge test portion 91 can be an edge test hole. The middle test portion includes a first test portion 92 and / or a second test portion 93, for example, a first test hole and / or a second test hole located between the plurality of edge test holes. When the contact probe contacts the edge test hole, the first test hole, or the second test hole, it can measure one or more dimensional parameters of the edge test hole, the first test hole, or the second test hole, including the hole diameter, roundness, and positional accuracy. Of course, it is understood that the edge test portion 91 and the middle test portion of this disclosure can also have other structural features, such as a protruding surface.

[0044] The plurality of support portions include an edge support portion 12 and at least one intermediate support portion.

[0045] The edge support portion 12 is provided to support the edge by avoiding the front and / or rear surfaces of the plurality of edge test portions 91. Figure 3 This is a schematic diagram of the measuring support device according to an embodiment of this disclosure, viewed from another angle. (See also...) Figure 2 and Figure 3The edge support portion 12 is generally flat and its top surface is formed as a support surface. The top surface of the edge support portion 12 is a continuous surface and extends from both ends to the middle in a recessed manner to support the edge of the workpiece 900 to be tested, and to limit the workpiece 900 to be tested in the left and right directions, making it difficult for the workpiece 900 to move in the left and right directions. It also has a large support area and high support stability.

[0046] Optionally, the edge support portion 12 is provided with multiple concave surfaces, namely any two or more of the first concave surface 121a, the second concave surface 121b, the third concave surface 121c, the fourth concave surface 121d, the fifth concave surface 121e, the sixth concave surface 121f, the seventh concave surface 121g, and the eighth concave surface 121h. These multiple concave surfaces are provided to conform to the side surfaces of multiple edge test portions 91. Therefore, when the edge support portion 12 supports the workpiece 900 to be tested, the top surface of the edge support portion 12 can conform to the peripheral surface of the edge test portion 91, providing good support stability for the edge test portion 91. Of course, it is understood that the edge support portion 12 of this disclosure can also be decomposed into multiple discontinuous parts, so that the top surface of the edge support portion 12 supports the workpiece 900 in a discontinuous manner.

[0047] At least one of the intermediate support portions provides front and / or rear surface support for the intermediate portion to be tested and the edge portion to be tested 91, avoiding the intermediate portion. Thus, the intermediate support portion can also avoid the intermediate portion to be tested and the edge portion to be tested 91 in the front-back direction, so that the workpiece 900 under test can stably expose the intermediate portion to be tested and the edge portion to be tested 91.

[0048] Optionally, there is one intermediate testing part, and the intermediate testing part and the edge testing part 91 have different front and rear positions. Therefore, in order to maintain the stability of the center of gravity of the workpiece 900 under support, to make the posture of the workpiece 900 under test stable, and to save materials, there can be one intermediate support part, and the intermediate support part and the edge support part 12 are arranged at a front and rear interval, supporting the intermediate testing part with different front and rear positions.

[0049] Optionally, there may be multiple intermediate test parts, and these intermediate test parts may have different front and rear positions. In this case, there may also be multiple intermediate support parts, and these multiple intermediate support parts are arranged one-to-one with the multiple intermediate test parts, so as to support the multiple intermediate test parts in a manner that does not obstruct the edge test part 91 and the intermediate test parts in the front and rear direction.

[0050] Optionally, the plurality of intermediate test parts can be two, and the two intermediate test parts include a first test part 92 and a second test part 93. The first test part 92 and the second test part 93 have different front and rear positions.

[0051] Correspondingly, there are two intermediate support portions, including a first support portion 13 and a second support portion 14. The first support portion 13 is spaced apart from the edge support portion 12, supporting the first test portion 92 while avoiding the front and / or rear surfaces of the edge test portion 91 and the first test portion 92. The second support portion 14 is spaced apart from the first support portion 13, supporting the second test portion 93 while avoiding the front and / or rear surfaces of the edge test portion 91 and the second test portion 93. Thus, when the workpiece 900 is supported, the front and rear surfaces of the first test portion 92, the second test portion 93, and the edge test portion 91 can all be exposed for easy detection. At the same time, since the workpiece 900 protrudes in the front-to-back direction and the tested portion is supported, the center of gravity of the supported workpiece 900 can remain stable, which helps to ensure the stability of the workpiece 900's posture during contact measurement.

[0052] Optionally, the first support portion 13 is flat, with its top surface serving as a support surface. The second support portion 14 is also flat, with its top surface serving as a support surface. The support surfaces of the first support portion 13 and the second support portion 14 are located on opposite sides of the first test portion 92 and the second test portion 93, respectively, and work together to limit the movement of the workpiece 900 under test, thereby making it difficult for the workpiece 900 to move in the left-right direction.

[0053] For example, the supporting surface of the first supporting portion 13 is formed as a limiting concave surface 131 adapted to the first test portion 92. The supporting surface of the second supporting portion 14 has a low end and a high end, and the low end and the high end are respectively provided with a low concave surface 142 and a high concave surface 143 adapted to the peripheral surface of the second test portion 93. Therefore, when the low concave surface 142 and the high concave surface 143 support the second test portion 93, the support stability of the second test portion 93 is good.

[0054] Optionally, at least one of the edge test portions 91 is disposed below the intermediate test portion and at least partially overlaps with the left and right position regions of the intermediate test portion. The intermediate support portion has an avoidance opening to avoid the front and / or rear surfaces of the edge test portions 91 whose left and right position regions at least partially overlap with the intermediate test portion, thereby exposing the edge test portions 91 whose left and right position regions at least partially overlap with the intermediate test portion for easy detection.

[0055] Optionally, one edge test portion 91 at least partially overlaps with the left and right position regions of the first test portion 92. The other edge test portion 91 at least partially overlaps with the left and right position regions of the second test portion 93. Thus, the first support portion 13 has a first avoidance opening 132 to avoid the front and / or rear surface of the edge test portion 91 whose left and right position regions at least partially overlap with the first test portion 92. The second support portion 14 has a second avoidance opening 144 to avoid the front and / or rear surface of the other edge test portion 91 whose left and right position regions at least partially overlap with the second test portion 93.

[0056] Optionally, see Figure 2 and Figure 3 The edge support portion 12 has at least one limiting member 15 on its side opposite to the intermediate support portion, for limiting the workpiece 900 to be tested. For example, there are multiple limiting members 15, spaced apart along the length of the edge support portion 12. The limiting members 15 are plate-shaped and detachably connected to the edge support portion 12. Thus, when the contact probe contacts and tests the workpiece 900 from the front of the intermediate support portion and the edge support portion 12, the workpiece 900 will not move backward due to the blocking effect of the limiting members 15, and can be held in the test position for detection by the contact probe.

[0057] Optionally, the support portion and / or the base 11 are provided with weight-reducing holes. For example, the edge support portion 12 is provided with a first weight-reducing hole 122 and a second weight-reducing hole 123, where the first weight-reducing hole 122 extends laterally and the second weight-reducing hole 123 extends vertically. Thus, due to the presence of the first weight-reducing hole 122 and the second weight-reducing hole 123, materials are saved when manufacturing the measuring support device, and the overall weight of the measuring support device is lighter, making it easier to carry and transport. Of course, it is understood that the weight-reducing holes can also be provided in the intermediate support portion or the base 11.

[0058] This disclosure also provides a measuring device comprising a measuring body and a measuring support device as described in any of the above embodiments. The measuring body has a measuring platform and a contact probe, with a measurement position on the measuring platform. The contact probe is located above the measuring platform and its measuring range includes the measurement position. The measuring support device is positioned at the measurement position for contact measurement by the contact probe. Thus, when the measuring support device is placed at the measurement position on the measuring platform, the contact probe can make contact with the supported workpiece 900 to obtain relevant dimensional parameters of the workpiece 900, thereby detecting whether the dimensions of the workpiece 900 conform to a standard. For example, the measuring body may be a coordinate measuring machine (CMM). When the contact probe of the coordinate measuring machine comes into contact with the surface of the workpiece 900, it generates a displacement or force change that can be converted into an electrical signal. The processing system of the coordinate measuring machine captures and records this electrical signal, thereby analyzing and obtaining the three-dimensional position coordinates of the contact point, and then obtaining dimensional information such as the geometry, size and position of the workpiece 900, so as to achieve the purpose of measuring the workpiece 900.

Claims

1. A measuring support device, characterized in that, include: Base; as well as A support assembly, disposed on the base, includes a plurality of support portions distributed on the surface of the base; Multiple support portions are provided on one side of a workpiece to be tested, and are shaped to fit the protruding portion of the workpiece to be tested, so as to support the workpiece to be tested in the test position while avoiding the test portion on the front and / or rear surface of the workpiece.

2. The measuring support device according to claim 1, characterized in that, The plurality of the aforementioned support portions include: An edge support portion is provided to support the front and / or rear surfaces of multiple edge test portions that avoid the edge of the workpiece to be tested; At least one intermediate support portion is provided to support the intermediate portion to be tested and the front and / or rear surfaces of the edge portion to be tested, avoiding the middle of the workpiece to be tested.

3. The measuring support device according to claim 2, characterized in that, The top surface of the edge support portion is a continuous surface for support, and the continuous surface extends from both ends toward the middle to limit the position of the workpiece to be tested.

4. The measuring support device according to claim 2, characterized in that, The intermediate support portion is one, and the intermediate support portion and the edge support portion are spaced apart front and rear; or There are multiple intermediate support portions, and the multiple intermediate support portions include: The first support portion is provided at a distance from the edge support portion, so as to support the first test portion away from the middle of the workpiece to be tested and the front and / or rear surfaces of the edge test portion. The second support portion is provided at a distance from the first support portion, and is used to support the second test portion on the front and / or rear surfaces of the second test portion and the edge test portion, avoiding the middle of the workpiece to be tested.

5. The measuring support device according to claim 4, characterized in that, The support surfaces of the first support portion and the second support portion are located on opposite sides of the first and second parts to be tested, respectively, and cooperate to limit the position of the workpiece to be tested.

6. The measuring support device according to claim 2, characterized in that, The intermediate support portion is provided with a clearance opening to avoid the front and / or rear surfaces of the edge to be measured portion.

7. The measuring support device according to claim 2, characterized in that, The edge support portion is provided with a limiting member on the side opposite to the middle support portion.

8. The measuring support device according to claim 1, characterized in that, The support portion and / or the base are provided with weight-reducing holes.

9. The measuring support device according to claim 1, characterized in that, The base is provided with a grip.

10. A measuring device, characterized in that, include: The measuring body has a measuring platform and a contact probe. The measuring platform has a position to be measured, and the contact probe is located above the measuring platform, and the measuring range includes the position to be measured. The measuring support device as described in any one of claims 1 to 9 is disposed at the position to be measured for measurement by the contact probe.

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