Special device for detecting outer diameter of oil pipe joint

Abstract

The utility model discloses a special device for detecting the outer diameter of an oil pipe joint, which is characterized in that a probe vertical rod is arranged at one end of a base reference, a probe cross rod is arranged on the probe vertical rod, a connector of the cross rod is inserted into the probe cross rod, a probe fixing block is sleeved at the other end of the connector of the cross rod, and a probe chuck is inserted into the probe fixing block; a dial micrometer is sleeved on the probe chuck, the shifting block is sleeved in the dial micrometer, and the probe head is screwed into the dial micrometer and locked; a front guide block and a rear guide block are respectively placed in an I-shaped groove of a bottom block, a groove is formed between the front guide block and the rear guide block, a limiting block is placed in the groove, a vertical plate is installed on the bottom block, a positioning block is installed on the vertical plate, a calibration block serves as a calibration reference to carry out fine adjustment on a probe before detection, and the calibration block is pushed between the front guide block and the rear guide block and is in contact with the limiting block; and the reference assembly is arranged on the base reference. The structural design is reasonable, part distribution is clear, and action is stable. Due to the fact that hardware contour matching is used, the self-centering function is achieved, and the operation performance is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical field, concretely relates to a special device for oil pipe joint outer diameter size detection. BACKGROUND

[0002] Oil pipe joint is a component for connecting oil pipe, mainly used in hydraulic system and oil path transmission, to ensure the firm connection and reliable sealing between oil pipes, prevent oil leakage and ensure the normal operation of oil path. Figure 4 The detection means generally used for the oil pipe joint (outer diameter 5.8 (+0.1 / 0) mm) shown in the figure is a dial caliper (precision 0.02 mm), according to the selection principle of the measuring gauge: taking one tenth of the measured element tolerance to confirm the precision of the selected gauge, that is, the measured size tolerance is 0.1 mm, and the selected precision is 0.01 mm, so that the precision of the currently used caliper is 0.02 mm, which does not meet the detection requirements, and there is a risk of misjudgment. At the same time, since the detected point belongs to an arc transition contour, there is a risk of too large point error when manually collecting data. Moreover, the data cannot be recorded and left marks, and it is unknown whether the workpiece has been detected, so there is a risk of missing detection. In addition, since the data cannot be recorded and exported, it cannot provide strong data support for the subsequent continuous improvement process of improving quality and reducing cost. CONTENT OF THE UTILITY MODEL

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a special device for oil pipe joint outer diameter size detection.

[0004] According to the technical scheme provided by the embodiment of the present application,

[0005] A special device for oil pipe joint outer diameter size detection, comprising a gauge assembly and a reference assembly, the gauge assembly comprising a base reference, a measuring needle vertical rod, a measuring needle horizontal rod, a horizontal rod connector, a measuring needle fixing block, a measuring needle chuck, a percentage micrometer, a measuring needle probe, a push block, a function display box, a pressure plate, and a warning light; the measuring needle vertical rod is installed at one end of the base reference, the measuring needle horizontal rod is installed on the measuring needle vertical rod, the horizontal rod connector is inserted into the measuring needle horizontal rod, the horizontal rod connector has the measuring needle fixing block at the other end, the measuring needle chuck is inserted into the measuring needle fixing block, the percentage micrometer is sleeved on the measuring needle chuck, the push block is sleeved in the percentage micrometer, and the measuring needle probe is screwed into the percentage micrometer and locked;

[0006] The benchmark assembly comprises a base block, a front guide block, a rear guide block, a limiting block, a vertical plate, a positioning block and a calibration block; the front guide block and the rear guide block are respectively placed in the I-shaped groove of the base block, a groove is formed between the front guide block and the rear guide block, and the limiting block is placed in the groove; the vertical plate is mounted on the base block; the positioning block is mounted on the vertical plate; the calibration block is used as a calibration benchmark to detect the micrometer before the needle and is pushed into the space between the front guide block and the rear guide block and is in contact with the limiting block.

[0007] The benchmark assembly is mounted on the base benchmark and is fastened by three M5 screws.

[0008] Preferably, the inclined surface of the measuring needle chuck is matched with the inclined surface of the measuring needle fixing block.

[0009] Preferably, the percent micrometer is parallel to the base benchmark.

[0010] Preferably, the percent micrometer is perpendicular to the positioning block, and the perpendicularity is within 0.01.

[0011] Preferably, the percent micrometer is connected with the function display box through a data line, the pressure plate is connected with the function display box, and finally the function display box is connected with the prepared computer through a data line.

[0012] Preferably, the warning light is connected with the function display box through a wire.

[0013] In summary, the beneficial effects of the present application are as follows:

[0014] 1) The structure is reasonably designed, the parts are distributed clearly, and the operation is stable.

[0015] 2) Since the self-centering function is realized by using the hardware contour matching, the operation performance is stable;

[0016] 3) The perfect combination with digital devices can help promote the automation and information digitization of the company.

[0017] 4) Data information: The data acquisition function is configured, which is helpful for information collection and process management capability improvement.

[0018] 5) The data realizes automatic acquisition function, which effectively saves manual operation when analyzing. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0020] Figure 1 It is a side view structural schematic diagram of the present application;

[0021] Figure 2 It is the overhead structure schematic view of the utility model;

[0022] Figure 3 It is the partial structure schematic view of the gauge assembly of the utility model;

[0023] Figure 4 It is the workpiece structure schematic view to be detected by the utility model;

[0024] Figure 5 It is the overhead structure schematic view of the reference assembly in the utility model.

[0025] Marked number in the drawing:

[0026] 1-base reference, 2-measuring needle vertical rod, 3-measuring needle horizontal rod, 4-horizontal rod connector, 5-measuring needle fixing block, 6-measuring needle chuck, 7-percentage micrometer, 8-measuring needle probe, 9-pushing block, 10-bottom block, 11-front guide block, 12-rear guide block, 13-limit block, 14-vertical plate, 15-positioning block, 16-calibration block;

[0027] 17-function display box, 18-pressing pedal, 19-warning light, 20-computer.

[0028] 4.55 step in the scheme refers to the vertical plate 14 has an asymmetric long 4.55 step (such as shown in the figure) on which the positioning block 15 is installed, in order to ensure the correct installation direction, so the 4.55 step is in the right side in the K view direction vision; Figure 5

[0029] Positioning block 15 over arc refers to when installing the positioning block 15, in order to ensure that the working surface of the positioning block 15 is correct, so the over arc is installed to the left in the K view direction vision. Figure 5 DETAILED DESCRIPTION

[0030] The application will be further described in detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings.

[0031] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0032] As shown in the figure, a special device for detecting the outer diameter size of the oil pipe joint comprises a gauge assembly and a reference assembly: Figures 3-5

[0033] ​​​The gage assembly is installed on the base reference 1, the measuring needle vertical rod 2 is installed, the measuring needle horizontal rod 3 is sleeved into the measuring needle vertical rod 2, the M5 screw is screwed, and a little force is applied. The horizontal rod connector 4 is inserted into the measuring needle horizontal rod 3, and the M5 screw is screwed and locked. The measuring needle fixing block 5 is sleeved into the other end of the horizontal rod connector 4, the M5 threaded hole is kept vertically downward, the M5 screw is screwed, and a little force is applied. The percent micrometer 7 is sleeved into the measuring needle clamp head 6 about 12 mm, the clamp head thread is towards the measuring head side, the percent micrometer 7 is inserted into the measuring needle fixing block 5, the measuring needle clamp head 6 is ensured to be matched with the inclined surface of the measuring needle fixing block 5, the M12 thin hexagonal nut is screwed into the measuring needle clamp head 6, the percent micrometer 7 is adjusted to the locked position and the M12 thin hexagonal nut is tightened. The dial 9 is sleeved into the percent micrometer 7 about 3 mm away from the clamp head thread surface. The measuring needle measuring head 8 is screwed into the percent micrometer 7 and locked. The measuring needle fixing block 5 is adjusted to ensure that the percent micrometer 7 is parallel to the surface of the base reference 1, and the screw on the horizontal rod connector 4 and the measuring needle fixing block 5 is locked.

[0034] The reference assembly: the front guide block 11 and the rear guide block 12 are respectively put into the I-shaped groove of the bottom block 10, and are locked and fixed by 4 M5 nuts. The limiting block 13 convex end is put into the groove formed by the front guide block 11 and the rear guide block 12, and is fastened by 2 M4 screws. The vertical plate 14 4.55 step is installed on the bottom block 10 with the 4.55 step facing right, and is fastened by 2 M5 screws. The positioning block 15 is installed on the 4.55 step of the vertical plate 14 with the excess arc facing left, and is locked by 2 M4 screws.

[0035] The assembled reference assembly is installed on the base 1 reference, and is fastened by 3 M5 screws.

[0036] The calibration block 16 is pushed into the front guide block 11 and the rear guide block 12 and contacts the limiting block 13, the measuring needle horizontal rod 3 is fixed on the measuring needle vertical rod 2, the M5 screw is loosened, the height of the percent micrometer 7 is adjusted according to the calibration block 16, the measuring needle measuring head 8 is ensured to be close to the center of the end surface and contact the calibration block 16, the percent micrometer 7 is perpendicular to the positioning block 15, and finally the M5 screw is tightened. The warning light 19 is mainly connected with the function display box 17, and is used for warning unqualified products.

[0037] Supplement: For the percent micrometer 7 perpendicular to the positioning block 15, after the assembly is completed, the precision measurement is carried out to ensure that the perpendicularity is within 0.01.

[0038] The computer 20 is an information collection and output system: the percent micrometer 7 is connected with the function display box 17 through the data line, the pressure plate 18 is connected with the function display box 17, and finally the function display box 17 is connected with the prepared computer 20 through the data line. The computer 20 is installed with the program software matched with the function display box 17, the power supply is turned on, and the data setting, detection and collection can be carried out.

[0039] The above assembly is completed.

[0040] 1)Working principle

[0041] Workpiece installation: hold the workpiece rod with the right hand, the large head of the workpiece downward, push the push block 9 with the left hand to the limit and keep it still, put the workpiece into the guide groove formed by the front guide block 11 and the rear guide block 12 with the right hand and push it, make the large outer diameter of the workpiece abut against the limiting block 13, the measured point contacts the positioning block 15, release the push block 9 with the left hand, the workpiece installation is completed.

[0042] Workpiece detection: after the visual measuring needle probe 8 has contacted the measured point of the workpiece, press the pressure pedal 18 with the right hand, give the function display box 17 a data acquisition instruction, the data is transmitted to the function display box 17 through the percentage micrometer 7, the computer 20 collects the data in the function display box 17 and saves it for subsequent research and analysis.

[0043] Workpiece removal: push the push block 9 with the left hand, hold the workpiece rod with the right hand and take it off, release the push block 9 with the left hand.

[0044] The above description is only the preferred embodiment of the present application and the description of the technical principle and other schemes used. At the same time, the utility model range involved in the present application is not limited to the technical scheme formed by the specific combination of the above technical features, and should also cover other technical schemes formed by the combination of the above technical features or their equivalent features without departing from the utility model concept. For example, the technical scheme formed by replacing the above features with the technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. A device for detecting the outside diameter of a tubing connection, comprising a gauge assembly and a reference assembly, characterized in that: The gauge assembly comprises a base reference (1), a gauge needle vertical rod (2), a gauge needle horizontal rod (3), a horizontal rod connector (4), a gauge needle fixing block (5), a gauge needle clamp (6), a percentage micrometer (7), a gauge needle measuring head (8), a shifting block (9), a function display box (17), a pressure pedal (18), a warning light (19); the gauge needle vertical rod (2) is installed at one end of the base reference (1), the gauge needle horizontal rod (3) is installed on the gauge needle vertical rod (2), the horizontal rod connector (4) is inserted into the gauge needle horizontal rod (3), the horizontal rod connector (4) has the gauge needle fixing block (5) sleeved at the other end, the gauge needle clamp (6) is inserted into the gauge needle fixing block (5), the percentage micrometer (7) is sleeved on the gauge needle clamp (6), the shifting block (9) is sleeved into the percentage micrometer (7), the gauge needle measuring head (8) is screwed into the percentage micrometer (7) and locked; The reference assembly comprises a bottom block (10), a front guide block (11), a rear guide block (12), a limiting block (13), a vertical plate (14), a positioning block (15), and a calibration block (16); the front guide block (11) and the rear guide block (12) are respectively placed into the I-shaped grooves of the bottom block (10), a groove is formed between the front guide block (11) and the rear guide block (12), and the limiting block (13) is placed in the groove, the vertical plate (14) is installed on the bottom block (10), and the positioning block (15) is installed on the vertical plate (14); the calibration block (16) is used as a calibration reference to adjust the gauge needle before inspection, is pushed into the space between the front guide block (11) and the rear guide block (12), and is in contact with the limiting block (13); The reference assembly is installed on the base reference (1) and is fastened by three M5 screws.

2. The device for detecting the outer diameter size of a tubing joint according to claim 1, characterized in that: The inclined surface of the gauge needle clamp (6) is matched with the inclined surface of the gauge needle fixing block (5).

3. The device for detecting the outer diameter size of a tubing joint according to claim 1, characterized in that: The percentage micrometer (7) is parallel to the base reference (1).

4. The device for detecting the outer diameter size of a tubing joint according to claim 1, characterized in that: The percentage micrometer (7) is perpendicular to the positioning block (15), and the perpendicularity is within 0.

01.

5. The device for detecting the outer diameter size of a tubing joint according to claim 1, characterized in that: The percentage micrometer (7) is connected with the function display box (17) through a data line, the pressure pedal (18) is connected with the function display box (17), and finally the function display box (17) is connected with a prepared computer (20) through a data line.

6. The device for detecting the outer diameter size of a tubing joint according to claim 1, characterized in that: The warning light (19) is connected with the function display box (17) through a wire.

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