Thread detection device

Abstract

The utility model provides a thread detection device, which belongs to the technical field of thread detection and comprises a connecting assembly, the connecting assembly comprises a supporting plate, a motor is arranged on the supporting plate, a coupling is arranged at the output end of the motor, an alignment floating assembly is arranged at the lower end of the coupling, and the alignment floating assembly comprises a sleeve and a movable column movably connected in the sleeve. A first spring is arranged between the movable column and the sleeve, a floating block is arranged at the lower end of the movable column, a thread gauge is arranged in a round hole in the lower side of the floating block, a sliding rod is movably connected to the floating block, and an arc-shaped frame is arranged at the lower end of the sliding rod. Manual operation of a worker is not needed, the detection efficiency is improved, the labor intensity of the worker is reduced, the requirement for batch detection is met, the situation of missing detection is avoided, and the reliability is high.

Description

Technical Field

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

[0002] Thread is a spiral ridge made on a machine part, also known as a turnbuckle, or "rattan thread". Threads are divided into cylindrical threads and conical threads according to their parent body shape, external threads and internal threads according to their position on the parent body, and triangular threads, rectangular threads, trapezoidal threads, serrated threads and other special shaped threads according to their cross-sectional shape (tooth profile). Thread is a commonly used mechanical connection and fixation method, widely used in mechanical manufacturing, involving assembly, sealing and other functional connections. If the thread of a threaded part is missed during the production process, the workpiece will need to be repaired and reworked, or the performance or functional completeness of the product will be affected, resulting in scrapping during use, and even affecting the safety of the user. Therefore, it is necessary to inspect the threads on the workpiece before putting it on the market.

[0003] In the machining industry, the conventional method for checking whether threaded holes are qualified is to manually use a thread gauge to detect whether the threaded hole is qualified by screwing the thread gauge in or out. This manual detection method is inefficient and labor-intensive, and cannot meet the production needs of mass-produced products. In addition, the thread detection depth is not uniform, and it is easy to miss detection, which has poor reliability. Utility Model Content

[0004] The technical solution of the utility model aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. Specifically, the utility model mainly provides a thread detection device to solve the technical problem raised in the above background technology that the current manual detection of whether the threaded holes are qualified has too low detection efficiency and cannot meet the requirements of batch product detection.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A thread detection device includes a connecting component, the connecting component includes a support plate, a motor is arranged on the support plate, a coupling is arranged on the output end of the motor, an alignment floating component is arranged at the lower end of the coupling, the alignment floating component includes a sleeve and a movable column movably connected in the sleeve, a first spring is arranged between the movable column and the sleeve, a floating block is arranged at the lower end of the movable column, a thread gauge is arranged in the circular hole on the lower side of the floating block, a sliding rod is movably connected to the floating block, and an arc frame is arranged at the lower end of the sliding rod.

[0007] Furthermore, a photoelectric sensor is provided on one side of the outer wall of the sleeve.

[0008] Furthermore, limiting sliders are provided at both sides of the end of the movable column, and the limiting sliders are slidably connected to limiting sliding grooves, and the limiting sliding grooves are provided on the inner wall of the sleeve.

[0009] Furthermore, a plurality of balls are arranged in the groove on the lower side of the arc-shaped frame, and cover plates are installed at both ends of the groove of the arc-shaped frame by screws.

[0010] Furthermore, the slide rod is slidably connected with a mounting block, the mounting block is arranged on one side of the outer wall of the sleeve, a pressure block is also arranged on the slide rod, a second spring is arranged between the pressure block and the mounting block, and the second spring is sleeved on the slide rod.

[0011] Furthermore, connecting rods are respectively provided at the four top corners of the support plate, and a connecting disk is commonly provided at the upper ends of the four connecting rods.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model realizes the rapid detection of threaded holes on the workpiece by means of the motor, coupling, floating block and thread gauge, has a high degree of automation, does not need manual operation by the staff, is more convenient, improves the detection efficiency, reduces the labor intensity of the staff, and meets the needs of batch detection. In addition, due to the mutual cooperation between the sleeve, movable column, first spring, photoelectric sensor, slide bar, pressure block, second spring, arc frame, ball bearing and mounting block, it can ensure that the thread gauge is perpendicular to the plane with the threaded hole during detection, so that the axes of the thread gauge and the threaded hole coincide with each other without deviation, and at the same time, axial buffering and floating are performed, and the thread gauge is automatically guided to be screwed into the threaded hole at a certain angle and position offset, thereby reducing the probability that the thread gauge cannot be normally screwed into the threaded hole and improving the detection success rate.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure decomposition of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded view of the alignment floating assembly of the present invention.

[0018] In the figure: 1. connecting assembly; 11. support plate; 12. connecting rod; 13. connecting plate; 2. motor; 3. coupling; 4. alignment floating assembly; 41. sleeve; 411. limit slide groove; 42. moving column; 421. limit slider; 43. first spring; 44. photoelectric sensor; 45. floating block; 46. slide rod; 461. pressure block; 462. second spring; 47. arc frame; 48. ball bearing; 481. cover plate; 49. mounting block; 5. thread gauge. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Please refer to the attached Figure 1-3 A thread detection device includes a connecting component 1, the connecting component 1 includes a support plate 11, a motor 2 is arranged on the support plate 11, a coupling 3 is arranged at the output end of the motor 2, an alignment floating component 4 is arranged at the lower end of the coupling 3, the alignment floating component 4 includes a sleeve 41 and a moving column 42 movably connected in the sleeve 41, a first spring 43 is arranged between the moving column 42 and the sleeve 41, a floating block 45 is arranged at the lower end of the moving column 42, a thread gauge 5 is arranged in the circular hole on the lower side of the floating block 45, a sliding rod 46 is movably connected to the floating block 45, and an arc frame 47 is arranged at the lower end of the sliding rod 46.

[0023] Through the above structure, automatic detection of threaded holes on the workpiece is realized without the need for manual operation by the staff, which improves the efficiency of detection, reduces the labor intensity of the staff, and meets the needs of batch detection. During detection, it can ensure that the thread gauge 5 is perpendicular to the plane with the threaded hole, so that the axis of the thread gauge 5 and the threaded hole coincide with each other without deviation, and at the same time perform axial buffer floating, automatically guide the threading into the threaded hole at a certain angle and position offset, reduce the probability of the thread gauge 5 failing to be normally screwed into the threaded hole, and improve the detection success rate.

[0024] The specific operation is as follows. First, the thread gauge 5 is directed toward the threaded hole on the workpiece, and then it approaches the threaded hole. The arc frame 47 will contact the surface of the workpiece first, so that the arc frame 47 covers the vicinity of the threaded hole. At this time, the thread gauge 5 will be perpendicular to the surface of the workpiece with the threaded hole. After aligning the threaded hole, turn on the motor 2, and then the motor 2 drives the coupling 3 to rotate, thereby driving the alignment floating component 4 and the thread gauge 5 to rotate. Under the action of the first spring 43, the thread gauge 5 will float axially when aligning the hole, achieving a "soft contact" mode, so that the thread gauge 5 is quickly screwed into the threaded hole, and then the end of the moving column 42 triggers the photoelectric sensor 44 for monitoring the thread depth. The motor 2 stops running and rotates in the opposite direction to disengage the thread gauge 5 from the thread and complete the detection. During the detection process, if the detection cannot be detected, that is, the rotation torque of the motor 2 reaches the set torque and the thread cannot be deepened, it is determined that the thread processing is poor. Only when the detection torque and the detection depth meet the standards at the same time can the detected threaded hole be determined to be in a qualified state.

[0025] Please refer to the attached Figure 2 and attached Figure 3A photoelectric sensor 44 is provided on one side of the outer wall of the sleeve 41. The photoelectric sensor 44 is used to detect the thread depth. Limit sliders 421 are provided on both sides of the end of the movable column 42. The limit sliders 421 are slidably connected to the limit slide grooves 411. The limit slide grooves 411 are provided on the inner wall of the sleeve 41. The sleeve 41 and the movable column 42 are rotated synchronously through the cooperation between the limit slide grooves 411 and the limit sliders 421. A plurality of balls 48 are provided in the grooves on the lower side of the arc frame 47, and cover plates 481 are installed at both ends of the grooves of the arc frame 47 by screws. The balls 48 are used to realize rolling contact between the arc frame 47 and the surface of the workpiece with threaded holes, thereby reducing Less friction, the slide bar 46 is slidably connected with a mounting block 49, the mounting block 49 is arranged on one side of the outer wall of the sleeve 41, the slide bar 46 is also provided with a pressure block 461, a second spring 462 is arranged between the pressure block 461 and the mounting block 49, the second spring 462 is sleeved on the slide bar 46, and the slide bar 46 is quickly moved down and reset through the mutual cooperation among the second spring 462, the mounting block 49 and the pressure block 461, and the four top corner positions on the support plate 11 are respectively provided with connecting rods 12, and the upper ends of the four connecting rods 12 are commonly provided with a connecting disk 13, and the connection with the robot side of the quick-changing disk of the robot is realized through the connecting disk 13 (that is, the tool side of the quick-changing disk), so as to achieve the purpose of automatic calling.

[0026] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A thread detection device, comprising a connection assembly (1), wherein the connection assembly (1) comprises a support plate (11), It is characterized in that The support plate (11) is provided with a motor (2), the output end of the motor (2) is provided with a coupling (3), the lower end of the coupling (3) is provided with an alignment floating assembly (4), the alignment floating assembly (4) comprises a sleeve (41) and a moving column (42) movably connected in the sleeve (41), a first spring (43) is provided between the moving column (42) and the sleeve (41), a floating block (45) is provided at the lower end of the moving column (42), a thread gauge (5) is provided in a circular hole on the lower side of the floating block (45), a sliding rod (46) is movably connected to the floating block (45), and an arc frame (47) is provided at the lower end of the sliding rod (46).

2. A thread detection device according to claim 1, It is characterized in that A photoelectric sensor (44) is provided on one side of the outer wall of the sleeve (41).

3. A thread detection device according to claim 1, It is characterized in that Limiting slide blocks (421) are provided at both sides of the end of the movable column (42), and the limiting slide blocks (421) are slidably connected to the limiting slide grooves (411), and the limiting slide grooves (411) are provided on the inner wall of the sleeve (41).

4. A thread detection device according to claim 1, It is characterized in that A plurality of balls (48) are arranged in the groove on the lower side of the arc-shaped frame (47), and cover plates (481) are mounted on both ends of the groove of the arc-shaped frame (47) by means of screws.

5. A thread detection device according to claim 1, It is characterized in that The slide bar (46) is slidably connected to a mounting block (49), and the mounting block (49) is arranged on one side of the outer wall of the sleeve (41). A pressure block (461) is also arranged on the slide bar (46), and a second spring (462) is arranged between the pressure block (461) and the mounting block (49). The second spring (462) is sleeved on the slide bar (46).

6. A thread detection device according to claim 1, It is characterized in that Connecting rods (12) are respectively provided at the four top corners of the support plate (11), and a connecting plate (13) is commonly provided at the upper ends of the four connecting rods (12).

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