Universal thread automatic detection device

Abstract

The utility model provides a torsion-adjustable universal thread automatic detection device capable of automatically screwing in and withdrawing a thread go-no go gauge. The torsion-adjustable universal thread automatic detection device comprises a thread plug gauge adapter, direction adjusting spring steel, a rotating shaft, a pressure spring, a plane thrust ball bearing and the like, the thread plug gauge adapter is connected with one end of a rotating shaft through direction adjusting spring steel, the other end of the rotating shaft is provided with a disc structure, the end face of the disc structure is provided with a plurality of ball sockets in the circumferential direction, the rotating shaft is provided with an annular protrusion structure, and a compression spring is installed between the annular protrusion structure and the disc structure at the end of the rotating shaft. A rotatable scale ring is arranged on the shell, the scale ring is connected with the annular protruding structure on the rotating shaft in a matched mode, and the pressure spring is compressed or released by rotating the scale ring; a ball socket is arranged at the end part of the plane thrust ball bearing; a plurality of balls are mounted between the plane thrust ball bearing and the disc structure of the rotating shaft; a plane thrust ball bearing is installed on an output shaft of the motor, the motor is connected with a screw-in button and a screw-out button, and the screw-in button and the screw-out button are connected with a battery.

Description

Technical Field

[0001] The utility model relates to a universal automatic thread detection device, belonging to the technical field of thread detection. Background Art

[0002] There is a lot of thread detection work in the production process of various structural products. Taking spacecraft structural plates as an example, the current output is about 3,000 pieces / year. The number of threads that need to be detected on each structural plate ranges from a dozen to hundreds. Some models of threads require 100% detection, and some require an 80% spot check rate. At present, the detection range of structural plate threads is mostly M1.6~M8mm. The existing detection method is the comprehensive measurement method. The comprehensive measurement method is based on the Taylor inclusion principle, that is, the screwability of the internal thread is detected by the through gauge, and the manufacturing deviation of the internal thread is detected by the stop gauge. The comprehensive measurement method is used to check the size and shape and position errors of the thread. Although it cannot obtain specific measurement data, it can check the performance of the thread. At present, the thread performance detection adopts manual thread plug gauge detection means, but the traditional manual operation has the following problems and shortcomings in the production process of large-scale structural plates:

[0003] 1) Check the thread end and stop end manually, screw in and out, which is inefficient;

[0004] 2) A large number of thread inspections have a long inspection cycle and high labor intensity.

[0005] There are two types of thread testers: automatic thread testers and bench thread testers. The automatic thread tester can automatically set the thread depth, and the process control, status and test results are displayed on the terminal. The working process of the bench thread tester is relatively simple. The drive is installed in the cast iron housing, and the working spindle is installed in the axial floating bearing. In the waiting state, the spindle rotates at a slow speed. After entering the first pitch, the spindle speed will increase until it reaches the full thread depth or the gauge is locked. Both of the above thread testers are suitable for small parts. It is difficult to meet the thread inspection process of large panels or other complex structural products. Utility Model Content

[0006] The technical problem solved by the utility model is: to propose a universal automatic thread detection device for large panels or other complex structural products, which has the problems of low efficiency, long detection cycle and high labor intensity in the process of thread detection by manual screwing in and out.

[0007] The utility model solves the above technical problems through the following technical solutions: a universal thread automatic detection device, including a thread plug gauge adapter, a direction adjustment spring steel, a rotating shaft, a compression spring, a plane thrust ball bearing, a motor, a screw-in button, a screw-out button, a battery, a charging circuit board and a shell;

[0008] The threaded plug gauge adapter is connected to one end of the rotating shaft through a direction adjustment spring steel, a disc structure is arranged at the other end of the rotating shaft, a plurality of ball sockets are arranged around the circumference of the end surface of the disc structure, an annular protrusion structure is arranged on the rotating shaft, and a compression spring is installed between the annular protrusion structure and the disc structure at the end of the rotating shaft; one end of the compression spring installed on the rotating shaft is located in the housing, and one end of the threaded plug gauge adapter installed on the rotating shaft extends out from the end of the housing;

[0009] A rotatable scale ring is provided on the housing, and the scale ring is cooperatively connected with the annular protrusion structure on the rotating shaft, and the compression spring is compressed or released by rotating the scale ring;

[0010] A ball socket is arranged at the end of the plane thrust ball bearing, and a plurality of balls are installed between the plane thrust ball bearing and the disc structure of the rotating shaft; the plane thrust ball bearing is installed on the output shaft of the motor, the motor is connected to a screw-in button and a screw-out button for respectively controlling the forward or reverse rotation of the motor, the screw-in button and the screw-out button are connected to a battery, and the battery is connected to a charging circuit board for charging the battery;

[0011] The plane thrust ball bearing, the motor, the battery and the charging circuit board are arranged in the shell, and the screw-in button and the screw-out button are arranged in the window on the shell.

[0012] Furthermore, the thread plug gauge adapter has a conical surface structure inside, which is used to contact the conical surface of the thread plug gauge and is suitable for M1.6 to M8mm thread plug gauges.

[0013] Furthermore, different scale gears are set on the scale ring of the shell. The rotating scale ring corresponds to different scale gears, and different pressures are applied to the compression spring. The rotating shaft, compression spring, and plane thrust ball bearing cooperate to achieve torque control when the motor rotates, and the torque control range is 0.1-2.5kgf·cm.

[0014] Furthermore, the charging circuit board is connected to an external Type-C plug for charging.

[0015] The advantages of the utility model compared with the prior art are:

[0016] (1) The utility model proposes a universal automatic thread detection tool which can automatically screw in and out a thread gauge and has adjustable torque. The thread gauge can be automatically screwed into a threaded hole by a motor to realize efficient detection of the thread. After measurement, the thread gauge is automatically withdrawn and the torque is adjustable by a compression spring. When the thread is missing or incorrect, the screwing in and out stops automatically to ensure that the gauge will not damage the product and the measuring tool when it contacts the thread. The tool effectively reduces the intensity of manual work, improves the efficiency of thread gauge detection, and greatly shortens the thread detection cycle.

[0017] (2) The utility model can realize efficient detection of threads by adjusting the motor drive to automatically screw the thread gauge into the threaded hole, and the thread gauge automatically withdraws from the threaded hole after measurement.

[0018] (3) The utility model has an axis correction function, which can eliminate the influence of the angle deviation between the axis of the threaded hole and the axis of the thread detection device, and can effectively correct the axis deviation caused by the tool and the thread not being perpendicular during detection.

[0019] (4) The utility model can detect 11-12 threads per minute after trial, and the detection time is about 1 / 4 of the original manual detection time. While reducing the intensity of manual work, it improves the detection efficiency, shortens the detection cycle of structural plate threads, achieves the purpose of efficiently checking the thread opening and closing, and reduces the potential quality risk of the product. In addition, it has a simple structure, is portable and compact, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A diagram of the internal hardware structure of the detection device provided for the utility model;

[0021] Figure 2 This is the appearance of the detection device provided for the utility model. DETAILED DESCRIPTION

[0022] The following is further described in conjunction with specific embodiments:

[0023] like Figure 1 , 2 As shown, a universal automatic thread detection device is characterized by: including a thread plug gauge adapter 1, a direction adjustment spring steel 2, a rotating shaft 3, a compression spring 4, a plane thrust ball bearing 5, a motor 6, a screw-in button 7, a screw-out button 8, a battery 9, a charging circuit board 10, and a housing 11.

[0024] The threaded plug gauge adapter 1 is connected to one end of the rotating shaft 3 through the direction adjustment spring steel 2, and a disc structure is arranged at the other end of the rotating shaft 3. A plurality of ball sockets are arranged around the circumference of the end surface of the disc structure, and an annular protrusion structure is arranged on the rotating shaft 3. A compression spring 4 is installed between the annular protrusion structure and the disc structure at the end of the rotating shaft 3; one end of the compression spring 4 installed on the rotating shaft 3 is located in the housing 11, and one end of the threaded plug gauge adapter 1 installed on the rotating shaft 3 extends out from the end of the housing 11;

[0025] A rotatable scale ring is provided on the housing 11, and the scale ring is cooperatively connected with the annular protrusion structure on the rotating shaft 3, and the compression spring 4 is compressed or released by rotating the scale ring;

[0026] A ball socket is provided at the end of the plane thrust ball bearing 5, and a plurality of balls are installed between the plane thrust ball bearing 5 and the disc structure of the rotating shaft 3; the plane thrust ball bearing 5 is installed on the output shaft of the motor 6, and the motor 6 is connected to a screw-in button 7 and a screw-out button 8 for respectively controlling the forward or reverse rotation of the motor 6, and the screw-in button 7 and the screw-out button 8 are connected to a battery 9, and the battery 9 is connected to a charging circuit board 10 for charging the battery 9;

[0027] The plane thrust ball bearing 5 , the motor 6 , the battery 9 , and the charging circuit board 10 are installed in the housing 11 , and the screw-in button 7 and the screw-out button 8 are arranged in windows on the housing 11 .

[0028] The thread plug gauge adapter 1 has a conical surface structure inside, which can fully contact the plug gauge cone to ensure that it will not fall off during use. It also has a plug gauge quick-change function. By replacing the plug gauge connector, it can adapt to M1.6-M8mm conventional thread plug gauges, including through gauges and stop gauges.

[0029] Direction adjustment spring steel 2 has an axis correction function, which can eliminate the influence of the angle deviation between the axis of the threaded hole and the thread detection device, and can effectively correct the axis deviation caused by the tool and the thread not being perpendicular during detection.

[0030] The compression spring 4 is installed on the rotating shaft 3. The compression amount of the compression spring 4 controls the pressure between the rotating shaft 3 and the plane thrust ball bearing 5. When the motor 6 rotates forward, the motor drives the plane thrust ball bearing 5 to rotate, thereby driving the rotating shaft 3 and the thread plug gauge adapter 1 to rotate, so as to realize the screwing in of the thread plug gauge during detection; when the thread is missing or incorrect, the screwing in of the thread plug gauge becomes stuck, the torque of the motor 6 exceeds the set threshold, the ball installed between the plane thrust ball bearing 5 and the disc structure of the rotating shaft 3 is disengaged, the rotating shaft 3 stops rotating, the motor idles, and the screwing in and out stops automatically, protecting the measured thread and plug gauge. The rotating shaft 3, the compression spring 4, and the plane thrust ball bearing 5 can realize the torque control when the motor rotates, and the torque control range is 0.1-2.5kgf·cm. Different scale gears are set on the scale ring. The larger the scale gear value, the greater the pressure on the compression spring 4. The compression spring 4 applies different pressures to the ball installed between the plane thrust ball bearing 5 and the disc structure of the rotating shaft 3. The appropriate gear can be selected according to the material and size of the thread to be detected. When the motor 6 is reversed, the control is realized to screw out the thread plug gauge during detection.

[0031] The motor 6 has the function of forward rotation and reverse rotation. The screw-in button 7 and the screw-out button 8 are used to control the motor 5 to rotate forward or reverse, so as to screw in and out the thread plug gauge during detection.

[0032] The battery 9 has charging and discharging functions, and the battery 9 is connected to the charging circuit board 10, and the charging circuit board 10 is externally connected to a Type-C plug for charging. When in use, it can be powered by the battery or by an external circuit.

[0033] The utility model provides a function of quick-change of thread gauges, and realizes the detection of thread gauges of M1.6-M8mm. The device weighs less than 150g, is compact and convenient, and is easy to use.

[0034] The universal automatic thread detection device of the utility model can be powered by a battery or by an external circuit when in use.

[0035] The use process of this utility model:

[0036] 1. According to the size of the thread to be measured, select an appropriate thread go gauge or no-go gauge, and assemble the thread go gauge or no-go gauge on the thread plug gauge adapter.

[0037] 2. Adjust the torque gear of the drive device according to the material and size of the thread. For M1.6-M8mm aluminum alloy threads, the recommended gear is 1, for M1.6-M3mm stainless steel and wire thread inserts, the recommended gear is 1-3, and for M4-M8mm stainless steel and wire thread inserts, the recommended gear is 1-8. When using, it is recommended to use the low gear first to avoid damage to the thread.

[0038] 3. Align the assembled thread detection device and thread plug gauge with the threaded hole. The axis can be at a certain angle. Press the screw-in button to screw the plug gauge in. After the detection is completed, press the screw-out button to screw the plug gauge out.

[0039] 4. Replace the appropriate thread go gauge and stop gauge, and repeat the above steps to complete other thread go and stop inspections.

[0040] The contents not described in detail in the utility model specification belong to the common knowledge of those skilled in the art.

Claims

1. A universal thread automatic detection device, characterized in that: It comprises a threaded plug gauge adapter (1), a direction adjustment spring steel (2), a rotating shaft (3), a compression spring (4), a plane thrust ball bearing (5), a motor (6), a screw-in button (7), a screw-out button (8), a battery (9), a charging circuit board (10) and a housing (11); The threaded plug gauge adapter (1) is connected to one end of a rotating shaft (3) through a direction adjustment spring steel (2); a disc structure is arranged at the other end of the rotating shaft (3); a plurality of ball sockets are arranged around the circumference of the end surface of the disc structure; an annular protrusion structure is arranged on the rotating shaft (3); a compression spring (4) is installed between the annular protrusion structure and the disc structure at the end of the rotating shaft (3); one end of the compression spring (4) installed on the rotating shaft (3) is located in the housing (11); one end of the threaded plug gauge adapter (1) installed on the rotating shaft (3) protrudes from the end of the housing (11); A rotatable scale ring is provided on the housing (11), the scale ring is cooperatively connected with the annular protrusion structure on the rotating shaft (3), and the compression spring (4) is compressed or released by rotating the scale ring; A ball socket is arranged at the end of the planar thrust ball bearing (5), and a plurality of balls are installed between the planar thrust ball bearing (5) and the disc structure of the rotating shaft (3); the planar thrust ball bearing (5) is installed on the output shaft of the motor (6), the motor (6) is connected to a screw-in button (7) and a screw-out button (8) for respectively controlling the forward or reverse rotation of the motor (6), the screw-in button (7) and the screw-out button (8) are connected to a battery (9), and the battery (9) is connected to a charging circuit board (10) for charging the battery (9); The plane thrust ball bearing (5), the motor (6), the battery (9), and the charging circuit board (10) are installed in the housing (11), and the screw-in button (7) and the screw-out button (8) are arranged in windows on the housing (11).

2. A universal thread automatic detection device according to claim 1, characterized in that: The thread plug gauge adapter (1) has a conical surface structure inside, which is used to contact the conical surface of the thread plug gauge and is suitable for M1.6-M8mm thread plug gauges.

3. A universal thread automatic detection device according to claim 1, characterized in that: Different scale gears are arranged on the scale ring of the housing (11). When the scale ring is rotated to correspond to different scale gears, different pressures are applied to the compression spring (4). The rotating shaft (3), the compression spring (4) and the plane thrust ball bearing (5) cooperate to realize torque control when the motor rotates. The torque control range is 0.1-2.5 kgf·cm.

4. A universal thread automatic detection device according to claim 1, characterized in that: The charging circuit board (10) is externally connected to a Type-C plug for charging.

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