Pipe thread machining inspection measuring tool

Abstract

The utility model discloses a pipe thread processing inspection measuring tool which comprises a caliper body, the caliper body is of an octagonal structure, each edge of the caliper body of the octagonal structure is provided with a measuring tool structure, and each measuring tool structure comprises an upper limit value step and a lower limit value step. Initial threads are arranged on the outer edge of the caliper body on the same straight line with the lower limit value step. According to the common pipe thread size and 1 / 2 (DN15)-4 (DN100) size requirements, 8 grades are divided, an upper limit value step and a lower limit value step are machined on each side of the octagon, and meanwhile, the inspection can be carried out by combining an initial thread point.

Description

Technical Field

[0001] This utility model relates to the field of pipe thread processing, and in particular to a pipe thread processing inspection measuring tool. Background Technology

[0002] When machining 55° pipe threads on steel pipe ends according to GB / T 7306.1 and GB / T 7306.1, the standards specify requirements for the effective length of the machined thread. To comply with the standards, calipers must be used for measurement, or the number of threads machined must be counted. In current production, this is generally done manually, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a pipe thread processing inspection gauge to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, this utility model discloses a pipe thread processing inspection measuring tool, including a caliper body. The caliper body has an octagonal structure, and each side of the octagonal caliper body is provided with a measuring tool structure. The measuring tool structure includes an upper limit step and a lower limit step. The outer edge of the caliper body on the same straight line as the lower limit step is provided with an initial thread.

[0005] In this utility model, the measuring tool structure includes a first measuring tool structure. The width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 16.8 mm, and the distance between the initial thread and the upper limit step is 21.4 mm.

[0006] In this utility model, the measuring tool structure includes a second measuring tool structure. The width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 14.5 mm, and the distance between the initial thread and the upper limit step is 19.1 mm.

[0007] In this utility model, the measuring tool structure includes a third measuring tool structure. The width of the initial thread of the first measuring tool structure is 1.8 mm, the distance between the initial thread and the lower limit step is 12.7 mm, and the distance between the initial thread and the upper limit step is 16.3 mm.

[0008] In this utility model, the measuring tool structure includes a fourth measuring tool structure. The width of the initial thread of the first measuring tool structure is 1.8 mm, the distance between the initial thread and the lower limit step is 11.4 mm, and the distance between the initial thread and the upper limit step is 15.0 mm.

[0009] In this utility model, the measuring tool structure includes a fifth measuring tool structure. The width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 32.3 mm, and the distance between the initial thread and the upper limit step is 39.3 mm.

[0010] In this utility model, the measuring tool structure includes a sixth measuring tool structure. The width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 26.3 mm, and the distance between the initial thread and the upper limit step is 33.3 mm.

[0011] In this utility model, the measuring tool structure includes a seventh measuring tool structure. The width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 23.2 mm, and the distance between the initial thread and the upper limit step is 30.2 mm.

[0012] In this utility model, the measuring tool structure includes a third measuring tool structure. The width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 21.1 mm, and the distance between the initial thread and the upper limit step is 25.7 mm.

[0013] In this invention, the caliper body has a circular groove in the middle for easy gripping.

[0014] Beneficial effects: This utility model is based on commonly used pipe thread sizes, ranging from 1 / 2 (DN15) to 4 (DN100), divided into 8 grades. Utilizing an octagon, each side is machined with an upper limit step and a lower limit step. Combined with the starting thread point, inspection can be performed. This utility model reliably, simply, and quickly completes inspection, and requires no special skills from the user. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0016] Figure 1 This is a schematic diagram of the overall structure;

[0017] Figure 2 This is a diagram illustrating the usage status;

[0018] Figure 3 This is a schematic diagram of the usage state of Example 2;

[0019] Figure 4 This is a schematic diagram of the usage state of Example 3;

[0020] Figure 5 This is a schematic diagram of the usage state of Example 4.

[0021] The attached diagram is labeled as follows: 1. Caliper body, 2. Measuring tool structure, 3. Upper limit step, 4. Lower limit step, 5. Initial thread, 6. Circular groove. Detailed Implementation

[0022] Example:

[0023] like Figure 1 and Figure 2 This embodiment provides a pipe thread processing inspection measuring tool, including a caliper body 1. The caliper body has an octagonal structure, and each side of the octagonal caliper body is provided with a measuring tool structure 2. The measuring tool structure includes an upper limit step 3 and a lower limit step 4. The outer edge of the caliper body on the same straight line as the lower limit step is provided with an initial thread 5.

[0024] The measuring tool structure includes a first measuring tool structure, wherein the width of the initial thread of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 16.8 mm, and the distance between the initial thread and the upper limit step is 21.4 mm.

[0025] The measuring tool structure includes a second measuring tool structure. The initial thread width of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 14.5 mm, and the distance between the initial thread and the upper limit step is 19.1 mm.

[0026] The measuring tool structure includes a third measuring tool structure. The initial thread width of the first measuring tool structure is 1.8 mm, the distance between the initial thread and the lower limit step is 12.7 mm, and the distance between the initial thread and the upper limit step is 16.3 mm.

[0027] The measuring tool structure includes a fourth measuring tool structure. The initial thread width of the first measuring tool structure is 1.8 mm, the distance between the initial thread and the lower limit step is 11.4 mm, and the distance between the initial thread and the upper limit step is 15.0 mm.

[0028] The measuring tool structure includes a fifth measuring tool structure. The initial thread width of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 32.3 mm, and the distance between the initial thread and the upper limit step is 39.3 mm.

[0029] The measuring tool structure includes a sixth measuring tool structure. The initial thread width of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 26.3 mm, and the distance between the initial thread and the upper limit step is 33.3 mm.

[0030] The measuring tool structure includes a seventh measuring tool structure. The initial thread width of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 23.2 mm, and the distance between the initial thread and the upper limit step is 30.2 mm.

[0031] The measuring tool structure includes a third measuring tool structure. The initial thread width of the first measuring tool structure is 2.3 mm, the distance between the initial thread and the lower limit step is 21.1 mm, and the distance between the initial thread and the upper limit step is 25.7 mm.

[0032] A circular groove 6 for easy gripping is provided in the middle of the caliper body.

[0033] When this embodiment is in use, as Figure 2 , this measuring tool adopts an octagon, and two steps are processed on each side, one is the minimum length value for thread processing, and the other is the maximum length value for thread processing. The processed pipe end thread is aligned close to the measuring tool, and the initial thread is inserted into the innermost thread. Check whether the pipe end can fall between the upper limit step 3 and the lower limit step 4. If it can fall, it is qualified.

[0034] Embodiment 2:

[0035] As Figure 3 , the pipe end of this embodiment falls between the upper limit step 3 and the lower limit step 4, and the effective length of the thread is qualified.

[0036] Embodiment 3:

[0037] As Figure 4 , the pipe end of this embodiment falls outside the upper limit step 3, and the thread is too long.

[0038] Embodiment 4:

[0039] As Figure 5 , the pipe end of this embodiment falls inside the lower limit step 4, and the thread is too short.

[0040] The present utility model provides an idea and method for a pipe thread processing inspection measuring tool. There are many methods and ways to specifically implement this technical solution. The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. Each component not clearly defined in this embodiment can be realized by the existing technology.

Claims

1. A pipe thread inspection gage comprising: The caliper body (1) is octagonal structure, and each side of the octagonal structure is provided with a measuring structure (2), the measuring structure comprises an upper limit value step (3) and a lower limit value step (4), and the lower limit value step is provided with a primary thread (5) on the outer edge of the caliper body in a straight line.

2. A tubular thread inspection tool according to claim 1, wherein, The measuring structure comprises a first measuring structure, the width of the primary thread of the first measuring structure is 2.3mm, the distance between the primary thread and the lower limit value step is 16.8mm, and the distance between the primary thread and the upper limit value step is 21.4mm.

3. A tubular thread inspection tool according to claim 1 wherein, The measuring structure comprises a second measuring structure, the width of the primary thread of the first measuring structure is 2.3mm, the distance between the primary thread and the lower limit value step is 14.5mm, and the distance between the primary thread and the upper limit value step is 19.1mm.

4. A tubular thread inspection tool according to claim 1 wherein, The measuring structure comprises a third measuring structure, the width of the primary thread of the first measuring structure is 1.8mm, the distance between the primary thread and the lower limit value step is 12.7mm, and the distance between the primary thread and the upper limit value step is 16.3mm.

5. A tubular thread inspection tool according to claim 1 wherein, The measuring structure comprises a fourth measuring structure, the width of the primary thread of the first measuring structure is 1.8mm, the distance between the primary thread and the lower limit value step is 11.4mm, and the distance between the primary thread and the upper limit value step is 15.0mm.

6. A tubular thread inspection tool according to claim 1 wherein, The measuring structure comprises a fifth measuring structure, the width of the primary thread of the first measuring structure is 2.3mm, the distance between the primary thread and the lower limit value step is 32.3mm, and the distance between the primary thread and the upper limit value step is 39.3mm.

7. A tubular thread inspection tool according to claim 1 wherein, The measuring structure comprises a sixth measuring structure, the width of the primary thread of the first measuring structure is 2.3mm, the distance between the primary thread and the lower limit value step is 26.3mm, and the distance between the primary thread and the upper limit value step is 33.3mm.

8. A tubular thread inspection tool as defined in claim 1, wherein, The measuring structure comprises a seventh measuring structure, the width of the primary thread of the first measuring structure is 2.3mm, the distance between the primary thread and the lower limit value step is 23.2mm, and the distance between the primary thread and the upper limit value step is 30.2mm.

9. A tubular thread inspection tool according to claim 1 wherein, The measuring structure comprises a third measuring structure, the width of the primary thread of the first measuring structure is 2.3mm, the distance between the primary thread and the lower limit value step is 21.1mm, and the distance between the primary thread and the upper limit value step is 25.7mm.

10. A tubular thread inspection tool according to claim 1 wherein, The caliper body is provided with a circular groove (6) in the middle for convenient holding.

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