Fully automatic thread inspection device

Abstract

The utility model relates to thread detection technical field, concretely is a kind of full-automatic detection thread device, including detection platform, built-in thread detection assembly is on the detection platform, the bottom of thread detection assembly is connected with power mechanism;Thread detection assembly includes thread gauge and gauge fixing sleeve, thread gauge is built-in in gauge fixing sleeve and is fixedly connected with gauge fixing sleeve, thread detection hole is arranged in thread gauge, and thread detection hole is used to detect the workpiece to be detected.The utility model provides a kind of full-automatic detection thread device, cooperates with power mechanism and thread detection assembly, realizes thread automatic detection, automatically spins in, spins out, completely liberates artificial, does not need to rely on work experience, reduces artificial cost;Greatly reduce detection time, can shorten to 5 seconds detection finish one piece workpiece to be detected, greatly improve detection efficiency;It can be adapted to different models of workpiece to be detected.

Description

Technical Field

[0001] This utility model relates to the field of thread detection technology, and in particular to a fully automatic thread detection device. Background Technology

[0002] Threaded connections, as one of the most fundamental connection methods in the mechanical manufacturing field, directly affect the assembly accuracy, sealing performance, and service life of products. The core purpose of thread inspection is to verify whether the thread geometry parameters (such as pitch diameter, thread angle, and thread profile) and surface quality meet the design requirements. Traditional inspection is mostly manual. During operation, the inspector must manually align the product to be inspected with the thread gauge, and then screw the thread to be tested onto the thread ring gauge. During the manual engagement process, the thread on the product is checked for compliance with requirements based on its go / no-go status. However, the above inspection operations have the following drawbacks: (i) High labor intensity, requiring continuous labor output from the inspection personnel. Long-term repetitive operation can easily lead to personnel fatigue, resulting in misjudgment or missed detection, and will also reduce the product inspection efficiency, extending the inspection time of a single piece from about 20-30 seconds to 30-60 seconds or even longer; (ii) High dependence on manual labor, requiring the operator's work experience, accurate alignment, force control for screwing, and prevention of thread damage, etc. Different operators have different quality inspection standards for products, so it is not suitable for product quality; if problems such as workers leaving their posts or changing posts occur, it will also affect the product inspection efficiency; (iii) High cost due to manual operation.

[0003] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a fully automatic thread inspection device that solves the problems of high labor intensity, high dependence on manual labor, low work efficiency, and high cost associated with manual thread inspection.

[0005] To achieve the above objectives, this utility model provides a fully automatic thread detection device, including a detection platform with a built-in thread detection component. A power mechanism is connected to the bottom of the thread detection component. The thread detection component includes a thread gauge and a gauge fixing sleeve. The gauge fixing sleeve is cylindrical, and the thread gauge is built into and fixedly connected to the gauge fixing sleeve. A thread detection hole is provided inside the thread gauge for detecting the workpiece to be inspected.

[0006] As a preferred technical solution, the top of the gauge fixing sleeve is provided with at least four vertical through holes, and a horizontal through hole is provided below each vertical through hole. Each vertical through hole is connected to the corresponding horizontal through hole. A steel ball is provided in each horizontal through hole, and a tightening bolt is provided in each vertical through hole. The bottom of the tightening bolt abuts against the steel ball, so that the steel ball squeezes the thread gauge, thereby achieving a fixed connection between the thread gauge and the gauge fixing sleeve, as well as the function of self-aligning the thread gauge.

[0007] As a preferred technical solution, the distance L between the central axis of the vertical through hole and the inner wall of the gauge fixing sleeve is less than the diameter of the steel ball and greater than the radius of the steel ball.

[0008] As a preferred technical solution, the bottom of the tightening bolt is provided with a spherical protrusion.

[0009] As a preferred technical solution, the power mechanism includes a stepper motor and a motor spindle, wherein the stepper motor is connected to the bottom of the inspection gauge fixing sleeve via the motor spindle; the stepper motor is mounted on the bottom of the inspection platform via a motor mounting plate, and the motor mounting plate is mounted on the inspection platform by at least four bolts.

[0010] As a preferred technical solution, the bottom surface of the motor mounting plate and the testing platform is provided with a bushing, the bushing is fitted on the corresponding bolt, and the top of the bushing abuts against the testing platform and the bottom abuts against the motor mounting plate.

[0011] As a preferred technical solution, the testing platform has a built-in mounting hole, the thread detection component is installed in the mounting hole, and the top surface of the thread detection component is flush with the top surface of the testing platform.

[0012] As a preferred technical solution, the thread detection assembly is installed on the detection platform near the edge.

[0013] As a preferred technical solution, a control switch is installed on one side of the testing platform. The control switch and the power mechanism are both connected to the electrical control box via cables. The electrical control box is also connected to a foot switch via cables.

[0014] As a preferred technical solution, a protective layer is laid on the top surface of the testing platform.

[0015] This utility model provides a fully automatic thread detection device. Through the cooperation of a power mechanism and a thread detection component, it realizes automatic thread detection, solving the problems of high labor intensity and low work efficiency caused by manual knob thread detection. Automatic screwing in and out completely frees up manual labor, eliminates the need for work experience, and reduces labor costs. It greatly reduces the detection time, shortening it to 5 seconds to detect a workpiece, significantly improving detection efficiency. By changing the bushing, the vertical height of the stepper motor can be controlled, thereby enabling the replacement of different types of thread detection components to adapt to different types of workpieces. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fully automatic thread detection device of this utility model; Figure 2 This is the front view of the fully automatic thread detection device of this utility model; Figure 3 for Figure 2 Sectional view along the middle AA direction; Figure 4 This is a cross-sectional view of the thread detection assembly without steel balls installed. Figure 5 Cross-sectional view of the thread detection assembly after steel balls have been installed; Figure 6 for Figure 5 Enlarged view of B in the middle; In the picture: 1-Inspection platform, 11-Mounting hole, 2-Workpiece to be inspected, 3-Thread inspection assembly, 31-Thread gauge, 32-Gauge fixing sleeve, 321-Vertical through hole, 322-Horizontal through hole, 323-Tightening bolt, 3231-Spherical protrusion, 324-Steel ball, 33-Thread inspection hole, 4-Cable, 5-Bolt, 6-Control switch, 7-Power mechanism, 71-Motor mounting plate, 72-Stepper motor, 73-Motor spindle, 8-Foot switch, 9-Shaft sleeve, 10-Electrical control box. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0018] Example 1: See Figure 1 As shown in Figure 3, this utility model provides a fully automatic thread detection device, including a detection platform 1, on which a thread detection component 3 is built, and a power mechanism 7 is connected to the bottom of the thread detection component 3.

[0019] The thread detection component 3 is installed on the detection platform 1 near the edge. Specifically, the detection platform 1 has a built-in mounting hole 11, the thread detection component 3 is installed in the mounting hole 11, and the top surface of the thread detection component 3 is flush with the top surface of the detection platform 1.

[0020] See Figures 1 to 6 The thread inspection assembly 3 includes a thread gauge 31 and a gauge fixing sleeve 32. The gauge fixing sleeve 32 is cylindrical, and the thread gauge 31 is built into and fixedly connected to the gauge fixing sleeve 32. The thread gauge 31 is provided with a thread inspection hole 33, which is used to inspect the workpiece 2 to be inspected.

[0021] Specifically, the top of the gauge fixing sleeve 32 is provided with at least four vertical through holes 321, and a horizontal through hole 322 is provided below each vertical through hole 321. Each vertical through hole 321 is connected to the corresponding horizontal through hole 322. A steel ball 324 is provided in each horizontal through hole 322, and a tightening bolt 323 is provided in each vertical through hole 321. A spherical protrusion 3231 is provided at the bottom of the tightening bolt 323. The distance L between the central axis of the vertical through hole 321 and the inner wall of the gauge fixing sleeve 32 is less than the diameter of the steel ball 324 and greater than the radius of the steel ball 324.

[0022] During installation, place the steel ball 324 in the horizontal through hole 322 and move it to the side close to the thread gauge 31; then install the tightening bolt 323 in the vertical through hole 321, so that the spherical protrusion 3231 at the bottom of the tightening bolt 323 abuts against the steel ball 324, squeezing the steel ball 324 into close contact with the thread gauge 31, until the thread gauge 31 and the gauge fixing sleeve 32 are fixedly connected together, and the two move together. The four horizontal through holes 322 are arranged circumferentially at equal angles on the gauge fixing sleeve 32, which allows for fine-tuning when installing the thread gauge 31, so that the center of the thread gauge 31 coincides with the center of the motor spindle 73 in the power mechanism 7, ensuring the stability when the thread gauge 31 rotates for testing.

[0023] The horizontal through hole 322 can also be inclined, extending downwards from the outer wall of the gauge fixing sleeve 32 to the inner wall of the gauge fixing sleeve 32.

[0024] The bottom of the inspection gauge fixing sleeve 32 is connected to the power mechanism 7. Specifically, the power mechanism 7 includes a stepper motor 72 and a motor spindle 73. The stepper motor 72 is connected to the bottom of the inspection gauge fixing sleeve 32 via the motor spindle 73. The stepper motor 72 is mounted on the bottom of the inspection platform 1 via a motor mounting plate 71, which is mounted on the inspection platform 1 by at least four bolts 5. A bushing 9 is provided on the bottom surface of the motor mounting plate 71 and the inspection platform 1. The bushing 9 is fitted onto the corresponding bolts 5, with the top of the bushing 9 abutting against the inspection platform 1 and the bottom abutting against the motor mounting plate 71.

[0025] To adapt to different models of workpiece 2 to be inspected, different models of thread gauge 31 or a complete set of thread gauge 31 and gauge fixing sleeve 32 can be replaced. At this time, the height of stepper motor 72 needs to be adjusted. Therefore, bolt 5 can be removed and replaced with the same model of bushing 9 to ensure the levelness of motor mounting plate 71, thereby ensuring that stepper motor 72 drives thread inspection assembly 3 to rotate stably when rotating.

[0026] See Figure 1 and Figure 2 A control switch 6 is installed on one side of the testing platform 1. The control switch 6 and the power mechanism 7 are both connected to the electrical control box 10 via a cable 4. The electrical control box 10 can be installed on the top, side, or bottom surface of the testing platform 1. The electrical control box 10 is also connected to a foot switch 8 via a cable 4.

[0027] In order to protect the surface of the testing platform 1 from damage, a protective layer is laid on the top surface of the testing platform 1. The protective layer can be a rubber layer.

[0028] During operation, the operator screws the workpiece 2 to be inspected into the thread entry point of the thread inspection hole 33, and steps on the foot switch 8. The foot switch 8 transmits a control signal to the electrical control box 10, which then sends a signal to the stepper motor 72 to drive it to rotate forward a certain number of times. The stepper motor 72 receives the control signal and rotates forward, driving the thread inspection assembly 3 to rotate forward. When the stepper motor 72 has rotated to the corresponding number of times, it stops rotating. At this point, the thread on the workpiece 2 is fully screwed into the thread inspection hole 33. The electrical control box 10 receives the signal that the stepper motor 72 has stopped rotating and therefore sends a signal to control its reverse rotation. This causes the stepper motor 72 to rotate in the reverse direction, causing the workpiece 2 to unscrew from the thread inspection hole 33, thus completing the thread inspection. When the thread on the workpiece 2 to be inspected is unqualified, the workpiece 2 to be inspected stops transmission before it is fully screwed into the thread inspection hole 33. At this time, the forward rotation of the stepper motor 72 has not reached the specified number of rotations, indicating that the workpiece 2 to be inspected is an unqualified workpiece. At this time, the operator manually moves the control switch 6, and the control switch 6 sends a signal to the electrical control box 10. After receiving the signal sent by the control switch 6, the electrical control box 10 determines that the workpiece 2 to be inspected is an unqualified workpiece and needs to be unscrewed. Therefore, it sends a reverse rotation signal to the stepper motor 72, causing the stepper motor 72 to rotate in the opposite direction and unscrew the workpiece 2 to be inspected.

[0029] This utility model provides a fully automatic thread detection device. Through the cooperation of a power mechanism and a thread detection component, it realizes automatic thread detection, solving the problems of high labor intensity and low work efficiency caused by manual knob thread detection. Automatic screwing in and out completely frees up manual labor, eliminates the need for work experience, and reduces labor costs. It greatly reduces the detection time, shortening it to 5 seconds to detect a workpiece, significantly improving detection efficiency. By changing the bushing, the vertical height of the stepper motor can be controlled, thereby enabling the replacement of different types of thread detection components to adapt to different types of workpieces.

[0030] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A fully automatic thread inspection device, comprising an inspection platform (1), characterized in that, The testing platform (1) has a built-in thread testing component (3), and the bottom of the thread testing component (3) is connected to a power mechanism (7); the thread testing component (3) includes a thread gauge (31) and a gauge fixing sleeve (32). The thread gauge (31) is built into the gauge fixing sleeve (32) and fixedly connected to the gauge fixing sleeve (32). The thread gauge (31) has a thread testing hole (33), which is used to test the workpiece (2) to be tested. The top of the gauge fixing sleeve (32) is provided with at least four vertical through holes (321), and a horizontal through hole (322) is provided below each vertical through hole (321). Each vertical through hole (321) is connected to the corresponding horizontal through hole (322). A steel ball (324) is provided in each horizontal through hole (322), and a tightening bolt (323) is provided in the vertical through hole (321). The bottom of the tightening bolt (323) abuts against the steel ball (324), so that the steel ball (324) squeezes the thread gauge (31), thereby realizing the fixed connection between the thread gauge (31) and the gauge fixing sleeve (32). The distance L between the central axis of the vertical through hole (321) and the inner wall of the gauge fixing sleeve (32) is less than the diameter of the steel ball (324) and greater than the radius of the steel ball (324); the bottom of the tightening bolt (323) is provided with a spherical protrusion (3231).

2. The fully automatic thread detection device according to claim 1, characterized in that, The power mechanism (7) includes a stepper motor (72) and a motor spindle (73). The stepper motor (72) is connected to the bottom of the inspection gauge fixing sleeve (32) via the motor spindle (73). The stepper motor (72) is mounted on the bottom of the inspection platform (1) via a motor mounting plate (71). The motor mounting plate (71) is mounted on the inspection platform (1) by at least four bolts (5).

3. The fully automatic thread detection device according to claim 2, characterized in that, The motor mounting plate (71) and the bottom surface of the testing platform (1) are provided with bushings (9). The bushings (9) are fitted onto the corresponding bolts (5), and the top of the bushings (9) abuts against the testing platform (1) and the bottom abuts against the motor mounting plate (71).

4. The fully automatic thread detection device according to claim 1, characterized in that, The testing platform (1) has a built-in mounting hole (11), and the thread testing component (3) is installed in the mounting hole (11), with the top surface of the thread testing component (3) flush with the top surface of the testing platform (1).

5. The fully automatic thread detection device according to claim 4, characterized in that, The thread detection assembly (3) is installed on the detection platform (1) near the edge.

6. The fully automatic thread detection device according to claim 1, characterized in that, A control switch (6) is installed on one side of the detection platform (1). The control switch (6) and the power mechanism (7) are both connected to the electrical control box (10) via cable (4). The electrical control box (10) is also connected to a foot switch (8) via cable (4).

7. The fully automatic thread detection device according to claim 1, characterized in that, A protective layer is laid on the top surface of the testing platform (1).

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