Inner diameter detection mechanism

Abstract

An inner diameter detection mechanism disclosed by the present invention comprises a servo sliding table, one side of the servo sliding table is provided with a height-adjustable automatic jacking and positioning device used for improving workpiece detection and positioning convenience, the height-adjustable automatic jacking and positioning device comprises a base, and the outer surface of the upper end of the base is fixedly connected with an L-shaped mounting plate. A lower air cylinder is fixedly installed on the outer surface of the upper end of the base, a jacking base is arranged at the other end of a piston rod of the lower air cylinder, a damping sliding rail is fixedly connected to the inner surface of the other side of the L-shaped installation plate, a damping sliding sleeve is arranged on the outer ring of the damping sliding rail, and a connecting arm is fixedly installed on the outer surface of the other side of the damping sliding sleeve. According to the inner diameter detection mechanism, the height-adjustable automatic jacking positioning device is arranged, the structure is simple, the automation degree is high, convenience of positioning and fixing can be achieved when the inner diameter of a plate penetrating connector is detected, convenience of adjustment of the detection height and the horizontal position is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of inner diameter detection of through-plate joints, in particular to an inner diameter detection mechanism. Background Art

[0002] Bulkhead fittings are pipe fittings used to connect pipes or containers. Pipes are passed directly through holes in metal plates to provide connection and support for the piping system. This type of fitting is usually made of PFA material or other metal materials and contains a series of holes for passing the pipes of the pipe or container directly through the metal plate to achieve the connection of the pipes. The main function of the bulkhead fitting is to provide a connection point in the piping system to ensure the stability and tight connection of the piping system to prevent leakage. The inner diameter size of the bulkhead fitting needs to be tested during production and processing.

[0003] The existing methods for detecting the inner diameter of bulkhead joints are mostly manual, which is not only time-consuming and labor-intensive, but also slow and affects work efficiency. The accuracy of the detected dimensions is also low, which affects product quality and has certain adverse effects on people's use process. For this reason, we propose an inner diameter detection mechanism. Summary of the invention

[0004] The present invention aims at solving the problems existing in the prior art and provides an inner diameter detection mechanism.

[0005] The present invention solves the above technical problems through the following technical means: An inner diameter detection mechanism comprises a servo slide, one side of the servo slide is provided with a height-adjustable automatic lifting and positioning device for improving the convenience of workpiece detection and positioning, the height-adjustable automatic lifting and positioning device comprises a base, an upper end outer surface of the base is fixedly connected with an L-shaped mounting plate, a lower cylinder is fixedly mounted on the upper end outer surface of the base, a lifting seat is provided on the other end of the piston rod of the lower cylinder, a damping slide rail is fixedly connected to the inner surface of the other side of the L-shaped mounting plate, a damping sliding sleeve is provided on the outer ring of the damping slide rail, and a damping sliding sleeve is fixed on the outer surface of the other side of the damping sliding sleeve A connecting arm is fixedly installed, and a mounting seat is provided at the other end of the connecting arm. A No. 1 electric push rod is fixedly installed on the outer surface of the other side of the mounting seat, and a connecting ring is provided at the other end of the No. 1 electric push rod. An upper cylinder is fixedly installed on the outer surface of the upper end of the L-shaped mounting plate, and a fixed pressure plate is provided at the other end of the piston rod of the upper cylinder, and an automatic clamping workpiece fixing device for improving the convenience of workpiece detection, disassembly and fixing is provided on the outer surface of the other side of the connecting ring, and a multi-directional adjustable automatic detection device for improving the convenience of detection position adjustment is provided on the upper outer surface of the servo slide.

[0006] Furthermore, the L-shaped mounting plate and the lower cylinder are both fixedly connected to the upper outer surface of the base, and the L-shaped mounting plate is located on one side of the lower cylinder, the lifting seat is fixedly connected to the other end of the piston rod of the lower cylinder, the upper cylinder is fixedly connected to the upper outer surface of the L-shaped mounting plate, and the fixed pressure plate is fixedly connected to the other end of the piston rod of the upper cylinder.

[0007] Furthermore, the damping slide rail is fixedly connected to the inner surface of the L-shaped mounting plate, the damping sleeve is slidably connected to the outer surface of the damping slide rail, the mounting seat is fixedly connected to the damping sleeve via a connecting arm, the No. 1 electric push rod is fixedly connected to the outer surface of the mounting seat, and the automatic clamping workpiece fixing device is fixedly connected to the other end of the No. 1 electric push rod via a connecting ring.

[0008] Furthermore, the automatic clamping workpiece fixing device is movably connected to the mounting seat via a No. 1 electric push rod, the damping sleeve and the damping slide rail of the automatic clamping workpiece fixing device are slidably connected to the inner surface of the L-shaped mounting plate, the lifting seat is movably connected to the lower end outer surface of the automatic clamping workpiece fixing device via a lower cylinder, and the fixed pressure plate is movably connected to the upper end outer surface of the automatic clamping workpiece fixing device via a piston rod of an upper cylinder.

[0009] Furthermore, the automatic clamping workpiece fixing device includes a placement tray, and the outer surfaces of both sides of the placement tray are fixedly connected to an L-shaped connecting seat, a micro cylinder is provided on the outer surface of one side of the L-shaped connecting seat, and a guide sleeve is provided between the piston rod of the micro cylinder and the middle part of the inner surface of the L-shaped connecting seat, and the other end of the piston rod of the micro cylinder is fixedly installed with an anti-slip splint.

[0010] Furthermore, the number of the micro cylinders and L-shaped connecting seats is two groups, and the micro cylinders are fixedly connected to the outer surfaces on both sides of the tray through the L-shaped connecting seat, the piston rod of the micro cylinder is movably connected to the middle parts of the inner surfaces on both sides of the L-shaped connecting seat through the guide sleeve, the anti-slip splint is fixedly connected to the other end of the piston rod of the micro cylinder, and the anti-slip splint is movably connected to the inner surfaces on both sides of the L-shaped connecting seat through the piston rod of the micro cylinder.

[0011] Furthermore, the multi-directional adjustable automatic detection device includes a fixed seat. The lower end outer surface of the fixed seat is provided with a mounting base plate, the rear end outer surface of the fixed seat is fixedly mounted with an electric cylinder, a guide groove is provided between the piston rod of the electric cylinder and the middle of the inner surface of the fixed seat, the other end of the piston rod of the electric cylinder is provided with a chassis, a DD motor is fixedly mounted inside the chassis, the other end of the output shaft of the DD motor is provided with a rotating shaft, a mounting bearing is provided between the rotating shaft and the middle of the front end inner surface of the chassis, and a laser rangefinder is fixedly mounted on the other end of the rotating shaft.

[0012] Furthermore, the fixed seat is fixedly connected to the upper outer surface of the servo slide through the mounting base, the electric cylinder is fixedly connected to the rear end outer surface of the mounting base, the piston rod of the electric cylinder is movably connected to the middle of the inner surface of the fixed seat through the guide groove, the DD motor is fixedly connected to the other end of the piston rod of the electric cylinder through the chassis, one end of the rotating shaft is connected to the output shaft of the DD motor, the laser rangefinder is fixedly connected to the other end of the rotating shaft, and the rotating shaft is movably connected to the middle of the front end inner surface of the chassis through the mounting bearing.

[0013] Furthermore, the number of the multi-directionally adjustable automatic detection devices is three groups, and the multi-directionally adjustable automatic detection devices are movably connected to the height-adjustable automatic lifting and positioning device through a servo slide, the laser rangefinder is connected to the output shaft of the DD motor through a rotating shaft, and the laser rangefinder is movably connected to the front end outer surface of the chassis through the output shaft of the DD motor, and the laser rangefinder is movably connected to the front end outer surface of the fixed seat through the piston rod of the electric cylinder.

[0014] Beneficial Effects Compared with the prior art, the present invention provides an inner diameter detection mechanism, which has the following beneficial effects: 1. This inner diameter detection mechanism is equipped with a height-adjustable automatic lifting and positioning device, which has a simple structure and a high degree of automation. It can not only realize the convenience of positioning and fixing when detecting the inner diameter of the through-plate joint, but also improve the convenience of adjusting the detection height and horizontal position, thereby improving work efficiency.

[0015] 2. This inner diameter detection mechanism is equipped with an automatic clamping workpiece fixing device, which has a simple structure and is easy to operate. It can realize the convenience of disassembly and fixation when detecting through-plate joints, further improve the detection efficiency, and also improve the stability of workpiece fixation during detection to avoid falling.

[0016] 3. The inner diameter detection mechanism is provided with a multi-directional adjustable automatic detection device, which has a simple structure and convenient operation. It can realize automatic detection of the inner diameter of the through-plate joint without manual detection, saves time and labor, greatly improves the detection efficiency, and can also perform multi-directional detection of the inner diameter of the workpiece, improve the accuracy of the detection result, and improve the product production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of an inner diameter detection mechanism of the present invention.

[0018] Figure 2 The present invention is a schematic diagram of the overall structure of a height-adjustable automatic lifting and positioning device for an inner diameter detection mechanism.

[0019] Figure 3 The present invention is a schematic diagram of the planar structure of a height-adjustable automatic lifting and positioning device of an inner diameter detection mechanism.

[0020] Figure 4 It is a schematic diagram of the enlarged plan structure at position A of a height-adjustable automatic lifting and positioning device of an inner diameter detection mechanism of the present invention.

[0021] Figure 5 The figure is a schematic diagram of the overall structure of an automatic clamping workpiece fixing device of an inner diameter detection mechanism of the present invention.

[0022] Figure 6 The present invention is a schematic diagram of the overall structure of a multi-directional adjustable automatic detection device for an inner diameter detection mechanism.

[0023] Figure 7 The present invention is a schematic diagram of the planar structure of a multi-directional adjustable automatic detection device for an inner diameter detection mechanism.

[0024] Figure 8 It is a schematic diagram of the enlarged plan structure at position B of a multi-directionally adjustable automatic detection device for an inner diameter detection mechanism of the present invention.

[0025] In the figure: 1. servo slide; 2. height-adjustable automatic lifting and positioning device; 3. base; 4. L-shaped mounting plate; 5. lower cylinder; 6. lifting seat; 7. damping slide rail; 8. damping sleeve; 9. connecting arm; 10. mounting seat; 11. No. 1 electric push rod; 12. connecting ring; 13. upper cylinder; 14. fixed pressure plate; 15. automatic clamping workpiece fixing device; 16. placing tray; 17. L-shaped connecting seat; 18. micro cylinder; 19. guide sleeve; 20. anti-slip splint; 21. multi-directional adjustable automatic detection device; 22. fixed seat; 23. mounting base plate; 24. electric cylinder; 25. guide slide groove; 26. chassis; 27. DD motor; 28. rotating shaft; 29. ​​mounting bearing; 30. laser rangefinder. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 8As shown, an inner diameter detection mechanism includes a servo slide 1, one side of the servo slide 1 is provided with a height-adjustable automatic lifting and positioning device 2 for improving the convenience of workpiece detection and positioning, the height-adjustable automatic lifting and positioning device 2 includes a base 3, the upper end outer surface of the base 3 is fixedly connected with an L-shaped mounting plate 4, the upper end outer surface of the base 3 is fixedly installed with a lower cylinder 5, the other end of the piston rod of the lower cylinder 5 is provided with a lifting seat 6, the other side inner surface of the L-shaped mounting plate 4 is fixedly connected with a damping slide rail 7, the outer ring of the damping slide rail 7 is provided with a damping sliding sleeve 8, and the other side outer surface of the damping sliding sleeve 8 is fixedly installed with a connecting rod 6. A connecting arm 9, the other end of the connecting arm 9 is provided with a mounting seat 10, an electric push rod 11 is fixedly installed on the outer surface of the other side of the mounting seat 10, and a connecting ring 12 is provided on the other end of the No. 1 electric push rod 11. An upper cylinder 13 is fixedly installed on the outer surface of the upper end of the L-shaped mounting plate 4, and a fixed pressure plate 14 is provided on the other end of the piston rod of the upper cylinder 13. An automatic clamping workpiece fixing device 15 for improving the convenience of workpiece detection, disassembly and fixing is provided on the outer surface of the other side of the connecting ring 12, and a multi-directional adjustable automatic detection device 21 for improving the convenience of detection position adjustment is provided on the upper end outer surface of the servo slide 1.

[0028] The L-shaped mounting plate 4 and the lower cylinder 5 are both fixedly connected to the upper outer surface of the base 3, and the L-shaped mounting plate 4 is located on one side of the lower cylinder 5, the lifting seat 6 is fixedly connected to the other end of the piston rod of the lower cylinder 5, the upper cylinder 13 is fixedly connected to the upper outer surface of the L-shaped mounting plate 4, and the fixed pressure plate 14 is fixedly connected to the other end of the piston rod of the upper cylinder 13.

[0029] The damping slide rail 7 is fixedly connected to the inner surface of the L-shaped mounting plate 4, the damping sleeve 8 is slidably connected to the outer surface of the damping slide rail 7, the mounting seat 10 is fixedly connected to the damping sleeve 8 through the connecting arm 9, the No. 1 electric push rod 11 is fixedly connected to the outer surface of the mounting seat 10, and the automatic clamping workpiece fixing device 15 is fixedly connected to the other end of the No. 1 electric push rod 11 through the connecting ring 12.

[0030] The automatic clamping workpiece fixing device 15 is movably connected to the mounting seat 10 through the No. 1 electric push rod 11, the damping sleeve 8 and the damping rail 7 of the automatic clamping workpiece fixing device 15 are slidably connected to the inner surface of the L-shaped mounting plate 4, the lifting seat 6 is movably connected to the lower end outer surface of the automatic clamping workpiece fixing device 15 through the lower cylinder 5, and the fixed pressure plate 14 is movably connected to the upper end outer surface of the automatic clamping workpiece fixing device 15 through the piston rod of the upper cylinder 13.

[0031] The automatic clamping workpiece fixing device 15 includes a placing tray 16, and the outer surfaces of both sides of the placing tray 16 are fixedly connected to an L-shaped connecting seat 17. A micro cylinder 18 is provided on the outer surface of one side of the L-shaped connecting seat 17. A guide sleeve 19 is provided between the piston rod of the micro cylinder 18 and the middle part of the inner surface of the L-shaped connecting seat 17, and an anti-slip splint 20 is fixedly installed on the other end of the piston rod of the micro cylinder 18.

[0032] The number of micro cylinders 18 and L-shaped connecting seats 17 are both two groups, and the micro cylinders 18 are fixedly connected to the outer surfaces on both sides of the placement tray 16 through the L-shaped connecting seat 17, the piston rod of the micro cylinder 18 is movably connected to the middle parts of the inner surfaces on both sides of the L-shaped connecting seat 17 through the guide sleeve 19, the anti-slip splint 20 is fixedly connected to the other end of the piston rod of the micro cylinder 18, and the anti-slip splint 20 is movably connected to the inner surfaces on both sides of the L-shaped connecting seat 17 through the piston rod of the micro cylinder 18.

[0033] The multi-directional adjustable automatic detection device 21 includes a fixed seat 22. A mounting base plate 23 is provided on the lower end outer surface of the fixed seat 22, an electric cylinder 24 is fixedly mounted on the rear end outer surface of the fixed seat 22, a guide slot 25 is provided between the piston rod of the electric cylinder 24 and the middle of the inner surface of the fixed seat 22, a case 26 is provided at the other end of the piston rod of the electric cylinder 24, a DD motor 27 is fixedly mounted inside the case 26, a rotating shaft 28 is provided at the other end of the output shaft of the DD motor 27, a mounting bearing 29 is provided between the rotating shaft 28 and the middle of the front end inner surface of the case 26, and a laser rangefinder 30 is fixedly mounted on the other end of the rotating shaft 28.

[0034] The fixed seat 22 is fixedly connected to the upper outer surface of the servo slide 1 through the mounting base 23, the electric cylinder 24 is fixedly connected to the rear end outer surface of the mounting base 23, the piston rod of the electric cylinder 24 is movably connected to the middle of the inner surface of the fixed seat 22 through the guide groove 25, the DD motor 27 is fixedly connected to the other end of the piston rod of the electric cylinder 24 through the chassis 26, one end of the rotating shaft 28 is connected to the output shaft of the DD motor 27, the laser rangefinder 30 is fixedly connected to the other end of the rotating shaft 28, and the rotating shaft 28 is movably connected to the middle of the front end inner surface of the chassis 26 through the mounting bearing 29.

[0035] There are three groups of multi-directional adjustable automatic detection devices 21, and the multi-directional adjustable automatic detection devices 21 are movably connected to the height-adjustable automatic lifting and positioning device 2 through the servo slide 1, the laser rangefinder 30 is connected to the output shaft of the DD motor 27 through the rotating shaft 28, and the laser rangefinder 30 is movably connected to the front end outer surface of the chassis 26 through the output shaft of the DD motor 27, and the laser rangefinder 30 is movably connected to the front end outer surface of the fixed seat 22 through the piston rod of the electric cylinder 24.

[0036] How it works The through-plate joint workpiece to be inspected is placed on the placement tray 16, and the placement position is adjusted so that the hole position of the joint corresponds to the laser rangefinder 30. The piston rod of the micro-cylinder 18 is controlled to be pushed out and the anti-skid clamping plate 20 at the other end is driven to move toward the workpiece until the two sets of anti-skid clamping plates 20 contact the outer surface of the workpiece, and the workpiece is clamped and fixed on the placement tray 16 to complete the rapid and automatic fixation of the workpiece. Then, the piston rod of the lower cylinder 5 is controlled to be pushed out and the lifting seat 6 at the upper end is driven to rise, and the placement tray 16 is lifted. The placement tray 16 can slide on the damping slide rail 7 through the damping sliding sleeve 8 to improve the lifting stability, until the lifting seat 6 lifts the automatic clamping workpiece fixing device 15 to a suitable height, so that the laser rangefinder 30 corresponds to the height of the workpiece hole position, and then the piston rod of the upper cylinder 13 is controlled to be pushed out and the fixed pressure plate 14 is driven downward to fix the height position of the workpiece. After the rod 11 is extended and retracted, it can drive the automatic clamping workpiece fixing device 15 to move to the horizontal position, adjust the horizontal position between the workpiece hole and the laser rangefinder 30, and after completing the adjustment and fixation of the detection position of the through-plate joint workpiece, the servo slide 1 drives the upper end of the multi-directional adjustable automatic detection device 21 to move, select the corresponding detection laser rangefinder 30, and control the piston rod of the electric cylinder 24 to push out and drive the other end of your laser rangefinder 30 to move toward the hole of the through-plate joint workpiece until the laser rangefinder 30 completely moves into the hole of the joint, and then automatically detects and records the inner diameter of the joint, and drives the laser rangefinder 30 at the other end of the rotating shaft 28 to rotate horizontally 90 degrees inside the workpiece hole by controlling the output shaft of the DD motor 27 to rotate, and perform secondary detection and recording. The two detections constitute two sets of data, and then the average value of the two sets of data is taken to complete the automatic detection of the inner diameter of the through-plate joint.

[0037] It should be noted that, in this article, relational terms such as first and second (number one, number two), 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. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An inner diameter detection mechanism, comprising a servo slide (1), characterized in that: A height-adjustable automatic lifting and positioning device (2) for improving the convenience of workpiece detection and positioning is provided on one side of the servo slide (1). The height-adjustable automatic lifting and positioning device (2) comprises a base (3). An L-shaped mounting plate (4) is fixedly connected to the outer surface of the upper end of the base (3). A lower cylinder (5) is fixedly mounted on the outer surface of the upper end of the base (3). A lifting seat (6) is provided on the other end of the piston rod of the lower cylinder (5). A damping slide rail (7) is fixedly connected to the inner surface of the other side of the L-shaped mounting plate (4). A damping sleeve (8) is provided on the outer ring of the damping slide rail (7). A connecting arm (9) is fixedly mounted on the outer surface of the other side of the damping sleeve (8). The other end of the connecting arm (9) is provided with a mounting seat (10), the other side outer surface of the mounting seat (10) is fixedly mounted with a No. 1 electric push rod (11), the other end of the No. 1 electric push rod (11) is provided with a connecting ring (12), the upper end outer surface of the L-shaped mounting plate (4) is fixedly mounted with an upper cylinder (13), the other end of the piston rod of the upper cylinder (13) is provided with a fixed pressure plate (14), the other side outer surface of the connecting ring (12) is provided with an automatic clamping workpiece fixing device (15) for improving the convenience of workpiece detection, disassembly and fixing, and the upper end outer surface of the servo slide (1) is provided with a multi-directional adjustable automatic detection device (21) for improving the convenience of detection position adjustment.

2. An inner diameter detection mechanism according to claim 1, characterized in that: The L-shaped mounting plate (4) and the lower cylinder (5) are both fixedly connected to the upper outer surface of the base (3), and the L-shaped mounting plate (4) is located on one side of the lower cylinder (5). The lifting seat (6) is fixedly connected to the other end of the piston rod of the lower cylinder (5). The upper cylinder (13) is fixedly connected to the upper outer surface of the L-shaped mounting plate (4). The fixed pressure plate (14) is fixedly connected to the other end of the piston rod of the upper cylinder (13).

3. An inner diameter detection mechanism according to claim 1, characterized in that: The damping slide rail (7) is fixedly connected to the inner surface of the L-shaped mounting plate (4), the damping sleeve (8) is slidably connected to the outer surface of the damping slide rail (7), the mounting seat (10) is fixedly connected to the damping sleeve (8) via a connecting arm (9), the first electric push rod (11) is fixedly connected to the outer surface of the mounting seat (10), and the automatic clamping workpiece fixing device (15) is fixedly connected to the other end of the first electric push rod (11) via a connecting ring (12).

4. An inner diameter detection mechanism according to claim 1, characterized in that: The automatic clamping workpiece fixing device (15) is movably connected to the mounting seat (10) via a No. 1 electric push rod (11); the damping sleeve (8) and the damping slide rail (7) of the automatic clamping workpiece fixing device (15) are slidably connected to the inner surface of the L-shaped mounting plate (4); the lifting seat (6) is movably connected to the lower end outer surface of the automatic clamping workpiece fixing device (15) via a lower cylinder (5); and the fixed pressure plate (14) is movably connected to the upper end outer surface of the automatic clamping workpiece fixing device (15) via a piston rod of an upper cylinder (13).

5. An inner diameter detection mechanism according to claim 1, characterized in that: The automatic clamping workpiece fixing device (15) comprises a placement tray (16), the outer surfaces of both sides of the placement tray (16) are fixedly connected to an L-shaped connection seat (17), a micro cylinder (18) is provided on the outer surface of one side of the L-shaped connection seat (17), a guide sleeve (19) is provided between the piston rod of the micro cylinder (18) and the middle part of the inner surface of the L-shaped connection seat (17), and the other end of the piston rod of the micro cylinder (18) is fixedly mounted with an anti-slip clamp (20).

6. An inner diameter detection mechanism according to claim 5, characterized in that: The number of the micro cylinder (18) and the L-shaped connecting seat (17) is two groups, and the micro cylinder (18) is fixedly connected to the outer surfaces of both sides of the placement tray (16) through the L-shaped connecting seat (17), the piston rod of the micro cylinder (18) is movably connected to the middle of the inner surfaces of both sides of the L-shaped connecting seat (17) through the guide sleeve (19), the anti-slip splint (20) is fixedly connected to the other end of the piston rod of the micro cylinder (18), and the anti-slip splint (20) is movably connected to the inner surfaces of both sides of the L-shaped connecting seat (17) through the piston rod of the micro cylinder (18).

7. An inner diameter detection mechanism according to claim 1, characterized in that: The multi-directional adjustable automatic detection device (21) comprises a fixed seat (22). The lower end outer surface of the fixed seat (22) is provided with a mounting base (23), the rear end outer surface of the fixed seat (22) is fixedly mounted with an electric cylinder (24), a guide groove (25) is provided between the piston rod of the electric cylinder (24) and the middle part of the inner surface of the fixed seat (22), the other end of the piston rod of the electric cylinder (24) is provided with a chassis (26), a DD motor (27) is fixedly mounted inside the chassis (26), the other end of the output shaft of the DD motor (27) is provided with a rotating shaft (28), a mounting bearing (29) is provided between the rotating shaft (28) and the middle part of the front end inner surface of the chassis (26), and a laser rangefinder (30) is fixedly mounted on the other end of the rotating shaft (28).

8. An inner diameter detection mechanism according to claim 7, characterized in that: The fixing seat (22) is fixedly connected to the upper outer surface of the servo slide (1) via the mounting base plate (23); the electric cylinder (24) is fixedly connected to the rear end outer surface of the mounting base plate (23); the piston rod of the electric cylinder (24) is movably connected to the middle of the inner surface of the fixing seat (22) via the guide groove (25); the DD motor (27) is fixedly connected to the other end of the piston rod of the electric cylinder (24) via the chassis (26); one end of the rotating shaft (28) is connected to the output shaft of the DD motor (27); the laser rangefinder (30) is fixedly connected to the other end of the rotating shaft (28); and the rotating shaft (28) is movably connected to the middle of the front end inner surface of the chassis (26) via the mounting bearing (29).

9. An inner diameter detection mechanism according to claim 5, characterized in that: The number of the multi-directionally adjustable automatic detection devices (21) is three groups, and the multi-directionally adjustable automatic detection devices (21) are movably connected to the height-adjustable automatic lifting and positioning device (2) via the servo slide (1), the laser rangefinder (30) is connected to the output shaft of the DD motor (27) via the rotating shaft (28), and the laser rangefinder (30) is movably connected to the front end outer surface of the chassis (26) via the output shaft of the DD motor (27), and the laser rangefinder (30) is movably connected to the front end outer surface of the fixing seat (22) via the piston rod of the electric cylinder (24).

Images