Calibrating device for thread measuring instrument

Abstract

The utility model relates to the technical field of thread measuring instrument calibration, and discloses a thread measuring instrument calibration device, which comprises a workbench, an adjusting part and a thread measuring instrument, and is characterized in that the top of the workbench is provided with a grating ruler; the adjusting part is arranged at the top of the workbench, and a sliding groove is formed in the workbench; the thread measuring instrument is arranged at the top of the workbench, and the adjusting part specifically comprises a sliding block arranged at the top of the workbench; the air cylinder is arranged on the top of the workbench. Through cooperation of the grating ruler, the sliding block, the electric telescopic rod, the positioning column, the first clamping block, the second clamping block, the pulley block, the supporting sliding block and the air cylinder, accurate adjustment of the positions of related parts can be achieved, the accuracy and reliability of calibration are ensured, the positions can be flexibly adjusted according to different measurement requirements and conditions, and the measurement precision is improved. And the position setting in each calibration process is kept in good consistency, so that a stable calibration result can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of thread measuring instrument calibration, in particular to a thread measuring instrument calibration device. Background Art

[0002] In the prior art, the thread roller measuring instrument is a special measuring instrument for measuring the diameter of large-sized threads in the American Petroleum Institute SPEC6A CNPC pipe thread inspection. Like other thread inspection tools such as pitch gauges, external taper gauges, tooth height gauges, etc., it requires periodic calibration. The typical thread roller measuring instrument structure includes an arc-shaped connecting plate, a movable probe and a fixed probe.

[0003] In the prior art, when calibrating the thread roller measuring instrument, there is a strong reliance on standard parts, and the calibration accuracy depends to a large extent on the accuracy of the standard parts. If there is a problem with the standard parts, it will affect the overall calibration effect. The operation is complex and may require more professional and complex operating procedures and skills, which places high demands on the operator. Utility Model Content

[0004] The utility model aims to provide a thread measuring instrument calibration device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thread measuring instrument calibration device, comprising a workbench, an adjustment part, and a thread measuring instrument, wherein a grating ruler is arranged on the top of the workbench; the adjustment part is arranged on the top of the workbench, and a slide groove is provided on the workbench; the thread measuring instrument is arranged on the top of the workbench.

[0006] Preferably, the adjusting part specifically includes: a slider, which is arranged on the top of the workbench; a cylinder, which is arranged on the top of the workbench: the output end of the cylinder is fixedly connected to the slider, and the slider is slidably connected to the slide groove, and a fixed block and a second clamping block are respectively fixedly installed on the top of the slider. The setting of the first clamping block and the second clamping block can firmly clamp the workpiece or component to ensure that it does not loosen or shift during operation, thereby ensuring the stability and accuracy of the work.

[0007] Preferably, an electric telescopic rod and a positioning column are fixedly mounted on one side of the fixed block, and the other end of the positioning column movably penetrates the first clamping block and extends to the other side of the first clamping block to be fixedly connected to the second clamping block.

[0008] Preferably, a clamping groove is provided on the first clamping block, a movable rod movably penetrates the inner wall of the clamping groove, a spring is sleeved on the outer wall of the movable rod, and a clamping plate is movably connected to the other end of the movable rod.

[0009] Preferably, one end of the spring is fixedly connected to the inner wall of the clamping groove, and the other end of the spring is fixedly connected to the clamping plate, a limiting slide groove is provided on one side of the second clamping block, a pulley block is slidably installed inside the limiting slide groove, the pulley block is movably connected to a support rod via an axis, the other end of the support rod is movably connected to the second clamping block via an axis, a supporting slider is provided on the top of the pulley block, and the support rods are movably connected via an axis.

[0010] Preferably, the pulley block specifically includes: a connecting block, which is arranged inside the limiting slide groove; rollers are movably connected to both sides of the connecting block, and the setting of the rollers effectively reduces the friction between the contact surface and the contact surface, thereby protecting the contact surface and the rollers themselves.

[0011] Preferably, the thread measuring instrument specifically includes: a connecting rod, which is engaged with the clamping groove; the other end of the connecting rod is fixedly connected to an arc-shaped connecting plate, the right inner side of the arc-shaped connecting plate is fixedly connected to a fixed threaded rod, and the other end of the fixed threaded rod is movably mounted with a measuring head.

[0012] Preferably, the left side of the arc-shaped connecting plate is movably connected to a movable threaded rod, a probe is movably mounted on the other end of the movable threaded rod, and an indicator gauge is fixedly connected to the other end of the arc-shaped connecting plate.

[0013] The utility model provides a thread measuring instrument calibration device. It has the following beneficial effects:

[0014] (1) The utility model can achieve precise adjustment of the positions of relevant components through the coordination among the grating ruler, the slider, the electric telescopic rod, the positioning column, the first clamping block, the second clamping block, the pulley block, the supporting slider, and the cylinder, thereby ensuring the accuracy and reliability of calibration. The position can be flexibly adjusted according to different measurement requirements and situations, so that the position setting can maintain good consistency during each calibration process, which is conducive to obtaining stable calibration results.

[0015] (2) The utility model can flexibly adjust the position of the probe according to different thread specifications, shapes and measurement requirements through the coordination between the fixed threaded rod, the probe, the indicator, the movable threaded rod and the arc-shaped connecting plate, and adapt to a variety of measured objects. Through adjustment, the probe can better fit the measured thread, thereby improving the accuracy and precision of the measurement. The appropriate probe position helps to obtain more reliable measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a partial view of the adjustment part of the utility model;

[0018] Figure 3This is a partial view of the pulley block of the utility model;

[0019] Figure 4 It is a cross-sectional view of the adjustment part of the utility model.

[0020] In the figure: 1 workbench, 2 grating ruler, 3 adjustment part, 311 slider, 312 fixed block, 313 electric telescopic rod, 314 positioning column, 315 first clamping block, 316 movable rod, 317 clamping plate, 318 second clamping block, 319 pulley block, 3191 roller, 3192 connecting block, 3111 supporting slider, 3112 supporting rod, 3113 cylinder, 4 thread measuring instrument, 411 connecting rod, 412 fixed threaded rod, 413 measuring head, 414 indicator, 415 movable threaded rod, 416 arc connecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] Example 1

[0024] A preferred embodiment of the thread measuring instrument calibration device provided by the utility model is as follows Figure 1-4 As shown: a thread measuring instrument calibration device includes a workbench 1, an adjusting part 3, a thread measuring instrument 4, a grating ruler 2 is arranged on the top of the workbench 1; the adjusting part 3 is arranged on the top of the workbench 1, and the workbench 1 is provided with a slide groove; the thread measuring instrument 4 is arranged on the top of the workbench 1.

[0025] The adjusting part 3 specifically includes: a slider 311, which is arranged on the top of the workbench 1; a cylinder 3113, which is arranged on the top of the workbench 1: the output end of the cylinder is fixedly connected to the slider 311, the slider 311 is slidably connected to the slide groove, and the top of the slider 311 is respectively fixedly installed with a fixed block 312 and a second clamping block 318.

[0026] An electric telescopic rod 313 and a positioning column 314 are fixedly installed on one side of the fixing block 312 . The other end of the positioning column 314 movably penetrates the first clamping block 315 and extends to the other side of the first clamping block 315 to be fixedly connected to the second clamping block 318 .

[0027] The first clamping block 315 is provided with a clamping groove, the inner wall of which is movably penetrated by a movable rod 316 , the outer wall of which is sleeved with a spring, and the other end of which is movably connected to a clamping plate 317 .

[0028] One end of the spring is fixedly connected to the inner wall of the clamping groove, and the other end of the spring is fixedly connected to the clamping plate 317. A limiting slide groove is provided on one side of the second clamping block 318. A pulley block 319 is slidably installed inside the limiting slide groove. The pulley block 319 is movably connected to the support rod 3112 through an axis. The other end of the support rod 3112 is movably connected to the second clamping block 318 through an axis. A supporting slider 3111 is provided on the top of the pulley block 319. The support rods 3112 are movably connected through an axis.

[0029] The pulley block 319 specifically includes: a connecting block 3192, which is arranged inside the limiting sliding groove; and rollers 3191 are movably connected to both sides of the connecting block 3192.

[0030] In the process of this embodiment, the electric telescopic rod 313 is first started, and according to the model of the thread measuring instrument, the first clamping block 315 is pushed to fix and clamp the thread measuring instrument. Then the cylinder 3113 is started to push the slider 311 and adjust the appropriate position. During the relative sliding of the slider 311, the pulley block 319 will move upward through the shaft movably connected between the connecting rods 411. When the pulley block 319 moves upward, it will drive the support plate slider 3111 to move upward to a suitable position.

[0031] Example 2

[0032] On the basis of Example 1, a preferred embodiment of a thread measuring instrument calibration device provided by the utility model is as follows: Figure 1-4 As shown: the thread measuring instrument 4 specifically includes:

[0033] The connecting rod 411 is engaged with the clamping groove; the other end of the connecting rod 411 is fixedly connected to an arc-shaped connecting plate 416, the right inner side of the arc-shaped connecting plate 416 is fixedly connected to a fixed threaded rod 412, and the other end of the fixed threaded rod 412 is movably mounted with a probe 413.

[0034] The left side of the arc connecting plate 416 is movably connected to the movable threaded rod 415 , the other end of the movable threaded rod 415 is movably mounted with a probe 413 , and the other end of the arc connecting plate 416 is fixedly connected with an indicator gauge 414 .

[0035] In the process of this embodiment, first start the cylinder 3113 and adjust it to a suitable position. During the adjustment process, the support plate slider 3111 will move to a suitable position to support the arc-shaped connecting block 416, and then place the connecting rod 411 in the clamping groove, and then start the electric telescopic rod 313 to clamp the thread measuring instrument 4. Secondly, select a suitable probe 413 according to the model of the threaded bolt, and then adjust the position of the movable threaded rod 415 to clamp and fix the threaded bolt, and then start the grating ruler to measure the threaded bolt, and then calibrate it through the data of the indicator table 414.

[0036] Working principle: First, start the electric telescopic rod 313, and according to the model of the thread measuring instrument, push the first clamping block 315 to fix and clamp the thread measuring instrument. Secondly, start the cylinder 3113 to push the slider 311 and adjust the appropriate position. During the relative sliding of the slider 311, the pulley block 319 will move upward through the shaft movably connected between the connecting rods 411. While the pulley block 319 moves upward, it will drive the support plate slider 3111 to move upward to a suitable position to support the arc-shaped connecting block 416. Then, place the connecting rod 411 in the clamping groove, and then start the electric telescopic rod 313 to clamp the thread measuring instrument 4. Secondly, select a suitable probe 413 according to the model of the threaded bolt, and then adjust the position of the movable threaded rod 415 to clamp and fix the threaded bolt. Then start the grating ruler to measure the threaded bolt, and then calibrate it through the data of the indicator table 414.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A thread measuring instrument calibration device, comprising a workbench (1), an adjustment unit (3), and a thread measuring instrument (4), characterized in that: A grating ruler (2) is arranged on the top of the workbench (1); the adjustment part (3) is arranged on the top of the workbench (1); and a slide groove is provided on the workbench (1); and the thread measuring instrument (4) is arranged on the top of the workbench (1).

2. A thread measuring instrument calibration device according to claim 1, characterized in that: The adjustment unit (3) specifically comprises: A slider (311) is arranged on the top of the workbench (1); The cylinder (3113) is arranged on the top of the workbench (1): The output end of the cylinder (3113) is fixedly connected to the slider (311), the slider (311) is slidably connected to the slide groove, and a fixing block (312) and a second clamping block (318) are respectively fixedly installed on the top of the slider (311).

3. A thread measuring instrument calibration device according to claim 2, characterized in that: An electric telescopic rod (313) and a positioning column (314) are fixedly mounted on one side of the fixed block (312), and the other end of the positioning column (314) movably passes through a first clamping block (315) and extends to the other side of the first clamping block (315) to be fixedly connected to a second clamping block (318).

4. A thread measuring instrument calibration device according to claim 3, characterized in that: The first clamping block (315) is provided with a clamping groove, the inner wall of the clamping groove is movably penetrated by a movable rod (316), the outer wall of the movable rod (316) is sleeved with a spring, and the other end of the movable rod (316) is movably connected to a clamping plate (317).

5. A thread measuring instrument calibration device according to claim 4, characterized in that: One end of the spring is fixedly connected to the inner wall of the clamping groove, and the other end of the spring is fixedly connected to the clamping plate (317); a limiting sliding groove is provided on one side of the second clamping block (318); a pulley block (319) is slidably installed inside the limiting sliding groove; the pulley block (319) is movably connected to a support rod (3112) via an axis; the other end of the support rod (3112) is movably connected to the second clamping block (318) via an axis; a supporting slider (3111) is provided on the top of the pulley block (319); and the support rods (3112) are movably connected via an axis.

6. A thread measuring instrument calibration device according to claim 5, characterized in that: The pulley block (319) specifically comprises: A connecting block (3192) is arranged inside the limiting slide groove; Rollers (3191) are movably connected to both sides of the connection block (3192).

7. A thread measuring instrument calibration device according to claim 1, characterized in that: The thread measuring instrument (4) specifically comprises: A connecting rod (411) is engaged with the clamping groove; The other end of the connecting rod (411) is fixedly connected to an arc-shaped connecting plate (416), the right interior of the arc-shaped connecting plate (416) is fixedly connected to a fixed threaded rod (412), and the other end of the fixed threaded rod (412) is movably mounted with a measuring head (413).

8. A thread measuring instrument calibration device according to claim 7, characterized in that: The left side of the arc-shaped connecting plate (416) is movably connected to the movable threaded rod (415), the other end of the movable threaded rod (415) is movably mounted with a probe (413), and the other end of the arc-shaped connecting plate (416) is fixedly connected with an indicator gauge (414).

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