A contact box detection tool

Abstract

The application discloses a contact box detection tool and belongs to the technical field of equipment detection. The contact box detection tool is characterized in that a first plug-in part is connected with a connecting part at an included angle, the first plug-in part can be plugged into a first mounting hole, a second plug-in part is connected with the connecting part at an included angle, and the second plug-in part is plugged into a second mounting hole when the first plug-in part is plugged into the first mounting hole, so that whether the hole distance between the mounting holes of the contact box meets the precision requirement can be accurately and conveniently measured.

Description

Technical Field

[0001] This application relates to the field of equipment testing technology, specifically to a contact box testing fixture. Background Technology

[0002] The hole spacing of the contact box refers to the distance between the mounting holes on the flange of the contact box. Its size varies depending on the model, specifications and application of the contact box. Whether the hole spacing accuracy meets the requirements is a key parameter affecting the reliability of equipment assembly.

[0003] In existing technologies, vernier calipers are often used to measure the inner diameter of the two mounting holes, and then the minimum distance between the inner walls of the two mounting holes in the contact head box is measured. This method has a large measurement error and is affected by factors such as manual operation and the accuracy of measuring tools, making it difficult to fully guarantee the accuracy of the test results. Alternatively, a coordinate measuring machine is used to establish a spatial coordinate system to measure the hole distance between the mounting holes. This requires strict calibration of the workpiece coordinate system, which is cumbersome to debug. A lot of time needs to be spent on equipment calibration and parameter setting before each test. Furthermore, due to the difference in the specifications of the contact head boxes, the height of the coordinate measuring machine platform needs to be readjusted for each test, which further affects the testing efficiency.

[0004] Therefore, there is an urgent need for a contact box testing fixture to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide a contact box inspection fixture that can accurately and conveniently determine whether the hole spacing accuracy between the mounting holes of the contact box meets the requirements.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A contact box testing fixture is provided for testing contact boxes. The contact box has a first mounting hole and a second mounting hole. The contact box testing fixture includes:

[0008] Connecting part;

[0009] The first plug-in portion is connected at an angle to the connecting portion, and the first plug-in portion can be plugged into and engaged with the first mounting hole;

[0010] The second plug-in portion is connected at an angle to the connecting portion. When the first plug-in portion is plugged into the first mounting hole, the second plug-in portion is plugged into the second mounting hole.

[0011] In some embodiments, the contact box further includes an inner cylinder, the central axis of which coincides with the first mounting hole. The first mounting hole is located on the inner bottom wall of the inner cylinder. The first insertion portion includes a first extension portion and a first plug-in portion. One end of the first extension portion is connected to the connecting portion at an angle, and the first plug-in portion is connected to the other end of the first extension portion. The first plug-in portion can be inserted into the first mounting hole, and the first extension portion is located inside the inner cylinder.

[0012] In some embodiments, the peripheral sidewall of the first extension is spaced apart from the inner sidewall of the inner cylinder.

[0013] In some embodiments, the first connector is detachably connected to the first extension.

[0014] In some embodiments, the second plug portion includes a second extension portion and a second plug connector. One end of the second extension portion is connected to the connecting portion at an angle, and the second plug connector is connected to the other end of the second extension portion. When the first plug portion is plugged into the first mounting hole, the second plug connector is plugged into the second mounting hole.

[0015] In some embodiments, the second connector is detachably connected to the second extension.

[0016] In some embodiments, the connecting portion is provided with a gripping groove for the four fingers of a human hand to insert.

[0017] In some embodiments, the first plug portion is connected at an angle to one end of the connecting portion, the second plug portion is connected at an angle to the other end of the connecting portion, and the gripping groove is located between the first plug portion and the second plug portion.

[0018] In some embodiments, when the first insertion part is inserted into the first mounting hole and the second insertion part is inserted into the second mounting hole, the extending direction of the gripping groove is parallel to the line connecting the central axis of the first mounting hole and the central axis of the second mounting hole.

[0019] In some embodiments, a first arc transition portion is provided at the connection between the first plug portion and the connecting portion; and / or a second arc transition portion is provided at the connection between the second plug portion and the connecting portion.

[0020] The beneficial effects of this application are as follows:

[0021] The contact box testing fixture provided in this application is configured such that a first plug-in part and a connecting part are connected at an angle, and the first plug-in part is plugged into a first mounting hole; a second plug-in part is also connected at an angle, and when the first plug-in part is plugged into the first mounting hole, the second plug-in part is simultaneously plugged into the second mounting hole, thereby enabling accurate and convenient measurement of whether the hole spacing between the mounting holes of the contact box meets the accuracy requirements. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the contact box detection fixture and the contact box insertion and mating structure provided in the embodiments of this application.

[0024] Figure 2 This is a schematic diagram of the contact box detection fixture provided in the embodiments of this application.

[0025] Figure label:

[0026] 100. Contact box; 101. First mounting hole; 102. Second mounting hole; 103. Inner cylinder;

[0027] 1. Connecting part; 11. Grip groove;

[0028] 2. First insertion part; 21. First extension part; 22. First insertion connector;

[0029] 3. Second insertion part; 31. Second extension part; 32. Second insertion connector. Detailed Implementation

[0030] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0031] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0032] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0033] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0034] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0035] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0036] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0037] Figure 1 This diagram illustrates the structure of the contact box detection fixture and the contact box 100 that are connected and engaged in this embodiment. Figure 2 A schematic diagram of the contact box detection fixture provided in this embodiment is shown. Figure 1 Combination Figure 2 As shown, the contact box testing fixture provided in this embodiment is used to test the contact box 100. The contact box testing fixture includes a connecting part 1, a first insertion part 2, and a second insertion part 3. The first insertion part 2 is connected to the connecting part 1 at an angle and can be inserted into the first mounting hole 101. The second insertion part 3 is connected to the connecting part 1 at an angle. When the first insertion part 2 is inserted into the first mounting hole 101, the second insertion part 3 is inserted into the second mounting hole 102. It should be noted that the distance between the first insertion part 2 and the second insertion part 3 of the contact box detection fixture is fixed and is set in accordance with the hole distance between the mounting holes of the contact box 100. There is a tolerance zone for the hole distance between the first mounting hole 101 and the second mounting hole 102. As long as the first insertion part 2 can be inserted and cooperate with the first mounting hole 101, and at the same time the second insertion part 3 is inserted and cooperated with the second mounting hole 102, it can be considered that the hole distance between the first mounting hole 101 and the second mounting hole 102 is within the tolerance zone and meets the hole distance accuracy requirements between the mounting holes.

[0038] The contact box testing fixture provided in this embodiment is connected to the connecting part 1 at an angle by the first plug-in part 2, which is engaged with the first mounting hole 101; the second plug-in part 3 is also connected to the connecting part 1 at an angle. When the first plug-in part 2 is engaged with the first mounting hole 101, the second plug-in part 3 is simultaneously engaged with the second mounting hole 102, thereby enabling accurate and convenient measurement of whether the hole spacing between the mounting holes of the contact box 100 meets the accuracy requirements.

[0039] For some contact boxes 100, an inner cylinder 103 is provided. A first mounting hole 101 is formed in the inner bottom wall of the inner cylinder 103, and the central axis of the inner cylinder 103 coincides with the first mounting hole 101. This results in the first mounting hole 101 being located at the bottom of the inner cylinder 103, making it difficult for the first insertion part 2 to be inserted and mated with the first mounting hole 101. To solve the above technical problem, the following continues... Figures 1 to 2 As shown, the first insertion part 2 includes a first extension part 21 and a first insertion connector 22. One end of the first extension part 21 is connected to the connecting part 1 at an angle, and the first insertion connector 22 is connected to the other end of the first extension part 21. The first insertion connector 22 can be inserted into the first mounting hole 101. The first extension part 21 is located inside the inner cylinder 103, thereby extending the length of the first insertion part 2 and ensuring that the first insertion part 2 can be reliably and accurately inserted into the first mounting hole 101.

[0040] In some embodiments, the peripheral sidewall of the first extension 21 is spaced apart from the inner sidewall of the inner cylinder 103, so as to prevent the inner cylinder 103 of the contact box 100 from being damaged by friction between the first extension 21 and the inner sidewall of the inner cylinder 103 when the first plug 22 is inserted into the first mounting hole 101.

[0041] In some embodiments, the first connector 22 is detachably connected to the first extension 21, thereby enabling the replacement of different connectors with different sizes of first mounting holes 101 for different specifications of contact boxes 100, thus making the contact box testing fixture applicable to contact boxes 100 of different specifications.

[0042] It should be noted that the connection method between the first connector 22 and the first extension 21 is not limited here. It can be bolted, welded or snapped, as long as the first connector 22 can be reliably inserted into the first mounting hole 101.

[0043] Continue as Figures 1 to 2 As shown, the second insertion part 3 includes a second extension part 31 and a second insertion connector 32. One end of the second extension part 31 is connected to the connecting part 1 at an angle, and the second insertion connector 32 is connected to the other end of the second extension part 31. When the first insertion part 2 is inserted into the first mounting hole 101, the second insertion connector 32 is inserted into the second mounting hole 102. Thus, when the first insertion part 2 is inserted into the first mounting hole 101, the length of the second insertion part 3 can be extended to ensure that the second insertion part 3 can be reliably inserted into the second mounting hole 102.

[0044] In some embodiments, the second connector 32 is detachably connected to the second extension 31, thereby enabling the replacement of different connectors with different sizes of second mounting holes 102 for different specifications of contact boxes 100, thus making the contact box testing fixture applicable to contact boxes 100 of different specifications.

[0045] Continue as Figures 1 to 2 As shown, the connecting part 1 is provided with a gripping groove 11 for the four fingers of a person to insert, so that the operator can insert his / her fingers into the gripping groove 11 to grip the contact box detection fixture, so that the operator can use the fixture to check whether the hole distance accuracy between the first mounting hole 101 and the second mounting hole 102 meets the requirements.

[0046] In some embodiments, the first plug-in portion 2 is connected at an angle to one end of the connecting portion 1, and the second plug-in portion 3 is connected at an angle to the other end of the connecting portion 1. The gripping groove 11 is located between the first plug-in portion 2 and the second plug-in portion 3. When the operator holds the contact box testing fixture, as long as the four fingers are aligned with the position between the first mounting hole 101 and the second mounting hole 102, the first plug-in portion 2 can be roughly aligned with the first mounting hole 101, and the second plug-in portion 3 can be roughly aligned with the second mounting hole 102, thereby improving the testing efficiency of the operator when using the contact box testing fixture.

[0047] Preferably, when the first plug-in part 2 is plugged into the first mounting hole 101 and the second plug-in part 3 is plugged into the second mounting hole 102, the extension direction of the gripping groove 11 is parallel to the line connecting the central axis of the first mounting hole 101 and the central axis of the second mounting hole 102, thereby further optimizing the contact box detection fixture, making it ergonomic and easier for workers to use.

[0048] In some embodiments, a first arc transition portion is provided at the connection between the first plug-in portion 2 and the connecting portion 1. This prevents stress concentration from causing the contact box detection fixture to break, and also prevents the contact box 100 from being damaged by friction between the connection between the first plug-in portion 2 and the connecting portion 1. Similarly, a second arc transition portion is provided at the connection between the second plug-in portion 3 and the connecting portion 1. This prevents stress concentration from causing the contact box detection fixture to break, and also prevents the contact box 100 from being damaged by friction between the connection between the second plug-in portion 3 and the connecting portion 1.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A contact box testing fixture for testing a contact box (100), wherein the contact box (100) has a first mounting hole (101) and a second mounting hole (102), characterized in that, The contact box testing fixture includes: Connecting part (1); The first plug-in part (2) is connected at an angle to the connecting part (1), and the first plug-in part (2) can be plugged into the first mounting hole (101); The second plug-in part (3) is connected to the connecting part (1) at an angle. When the first plug-in part (2) is plugged into the first mounting hole (101), the second plug-in part (3) is plugged into the second mounting hole (102).

2. The contact box testing fixture according to claim 1, characterized in that, The contact box (100) is also provided with an inner cylinder (103). The central axis of the inner cylinder (103) coincides with the first mounting hole (101). The first mounting hole (101) is opened on the inner bottom wall of the inner cylinder (103). The first insertion part (2) includes a first extension part (21) and a first plug-in part (22). One end of the first extension part (21) is connected to the connecting part (1) at an angle. The first plug-in part (22) is connected to the other end of the first extension part (21). The first plug-in part (22) can be inserted into the first mounting hole (101). The first extension part (21) is located inside the inner cylinder (103).

3. The contact box testing fixture according to claim 2, characterized in that, The peripheral sidewall of the first extension (21) is spaced apart from the inner sidewall of the inner cylinder (103).

4. The contact box testing fixture according to claim 2, characterized in that, The first connector (22) is detachably connected to the first extension (21).

5. The contact box testing fixture according to claim 1, characterized in that, The second plug-in portion (3) includes a second extension portion (31) and a second plug-in portion (32). One end of the second extension portion (31) is connected to the connecting portion (1) at an angle, and the second plug-in portion (32) is connected to the other end of the second extension portion (31). When the first plug-in portion (2) is plugged into the first mounting hole (101), the second plug-in portion (32) is plugged into the second mounting hole (102).

6. The contact box testing fixture according to claim 5, characterized in that, The second connector (32) is detachably connected to the second extension (31).

7. The contact box testing fixture according to claim 1, characterized in that, The connecting part (1) is provided with a gripping groove (11) for the four fingers of a human hand to insert.

8. The contact box testing fixture according to claim 7, characterized in that, The first plug-in part (2) is connected at an angle to one end of the connecting part (1), and the second plug-in part (3) is connected at an angle to the other end of the connecting part (1). The gripping groove (11) is located between the first plug-in part (2) and the second plug-in part (3).

9. The contact box testing fixture according to claim 8, characterized in that, When the first insertion part (2) is inserted into the first mounting hole (101) and the second insertion part (3) is inserted into the second mounting hole (102), the extending direction of the gripping groove (11) is parallel to the line connecting the central axis of the first mounting hole (101) and the central axis of the second mounting hole (102).

10. The contact box testing fixture according to any one of claims 1-9, characterized in that, A first arc transition portion is provided at the connection between the first plug portion (2) and the connecting portion (1); and / or a second arc transition portion is provided at the connection between the second plug portion (3) and the connecting portion (1).

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