阅读说明：本技术 远程在线检测枪管精度的工作系统 (Working system for remotely detecting precision of gun barrel on line ) 是由 冉洋 彭杰 高艳 王和武 古勇 王景润 于 2021-07-22 设计创作，主要内容包括：本发明公开了远程在线检测枪管精度的工作系统,包括：承载底座,所述承载底座顶端的一侧固定连接有安装背板,所述安装背板的正面固定连接有第一四爪卡盘,所述承载底座顶端的另一侧滑动安装有驱动组件,所述驱动组件的背面固定连接有第二四爪卡盘,所述驱动组件的正面固定安装有检测组件,所述检测组件包括定位套筒,所述定位套筒的内部固定安装有直线轴承。本发明的有益效果是：本发明利用两个同轴线的四爪自定心卡盘对待检测枪管进行固定,提高待检测枪管在检测过程中的稳定性,同时通过传动连接轴使两个四爪自定心卡盘进行同步转动,提高待检测枪管在转动过程中的稳定性,便于进行枪管内壁的平面度与直线度检测。(The invention discloses a working system for remotely detecting the accuracy of a gun barrel on line, which comprises: bear the base, bear one side fixedly connected with installation backplate on base top, the first four-jaw chuck of positive fixedly connected with of installation backplate, the opposite side slidable mounting who bears base top has drive assembly, drive assembly's back fixedly connected with second four-jaw chuck, drive assembly's positive fixed mounting has the determine module, the determine module includes the position sleeve, the inside fixed mounting of position sleeve has linear bearing. The invention has the beneficial effects that: the invention utilizes the two coaxial four-jaw self-centering chucks to fix the gun barrel to be detected, improves the stability of the gun barrel to be detected in the detection process, simultaneously enables the two four-jaw self-centering chucks to synchronously rotate through the transmission connecting shaft, improves the stability of the gun barrel to be detected in the rotation process, and is convenient for detecting the flatness and the straightness of the inner wall of the gun barrel.)

1. Work system of long-range on-line measuring barrel precision, its characterized in that includes:

the device comprises a bearing base (1), wherein a mounting back plate (2) is fixedly connected to one side of the top end of the bearing base (1), a first four-jaw chuck (3) is fixedly connected to the front side of the mounting back plate (2), a driving assembly (4) is slidably mounted to the other side of the top end of the bearing base (1), a second four-jaw chuck (5) is fixedly connected to the back side of the driving assembly (4), and a detection assembly (6) is fixedly mounted to the front side of the driving assembly (4);

the detection assembly (6) comprises a positioning sleeve (64), a linear bearing (65) is fixedly installed inside the positioning sleeve (64), a sliding connecting rod (63) is slidably connected inside the linear bearing (65), one end of the sliding connecting rod (63) is fixedly connected with a guide connecting body (62), a detection transmission arm (61) is rotatably installed inside the guide connecting body (62), one end of the sliding connecting rod (63) is fixedly installed with a fixed support (66), and a displacement detection plate (67) is fixedly installed on the front surface of the fixed support (66);

the detection device comprises a detection transmission arm (61), wherein one end of the detection transmission arm (61) is fixedly connected with a positioning block (611), one side of the positioning block (611) is fixedly provided with a detection table (612), one side of the detection table (612) is rotatably provided with a rotating ball (613), the other end of the detection transmission arm (61) is fixedly provided with an infrared emitter (614), and one end of the infrared emitter (614) is fixedly provided with an emitting eye (615);

and an image acquisition device is arranged to monitor the working system in real time, acquire images of the detection assembly and the detection transmission arm and transmit the images to a remote terminal through a wireless network.

2. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 1, wherein: the utility model discloses a bearing device, including bearing base (1), drive assembly (4), drive connection axle (11), drive assembly (4) slidable mounting, connecting through groove has been seted up to one side cell wall of mounting groove, connecting through groove's inside sets up transmission connecting axle (11), the one end fixed mounting of transmission connecting axle (11) has driven pinion (12), the middle part of transmission connecting axle (11) rotates and is connected with support bearing (13), the other end fixed mounting of transmission connecting axle (11) has driven gear (14).

3. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 1, wherein: the utility model discloses a portable computer, including installation backplate (2), first pivot (21) is installed in the front rotation of installation backplate (2), first pivot (21) run through installation backplate (2) and outwards extend, the extension end fixed mounting of first pivot (21) has first gear (22), the bottom meshing of first gear (22) is connected with second gear (23), second gear (23) rotate with installation backplate (2) and are connected.

4. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 1, wherein: drive assembly (4) are including location connecting plate (41), the top at the location connecting plate (41) back is rotated and is installed second pivot (42), run through location connecting plate (41) and outside extension of second pivot (42), the extension end fixed mounting of second pivot (42) has third gear (43), the bottom meshing of third gear (43) is connected with fourth gear (45), the extension end rotation of second pivot (42) is connected with location cutting ferrule (44), the bottom threaded connection of location connecting plate (41) has drive threaded rod (46), the both sides of drive threaded rod (46) all are provided with fixed guide pole (47).

5. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 1, wherein: first four-jaw chuck (3) and second four-jaw chuck (5) structure is the same and the symmetry sets up, first four-jaw chuck (3) fixed connection is in the one end of first pivot (21), second four-jaw chuck (5) fixed connection is in the one end of second pivot (42), first four-jaw chuck (3) and second four-jaw chuck (5) all set up to four-jaw self-centering chuck.

6. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 2, wherein: the outer lane of support bearing (13) and the inner wall fixed connection who is connected logical groove, the top integrated into one piece at transmission connecting axle (11) middle part has spacing boss, the inner circle joint of spacing boss and support bearing (13), support bearing (13) sets up to clearance fit with the assembly mode of transmission connecting axle (11).

7. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 2, wherein: the top and the second gear (23) intermeshing of driven pinion (12), the other end of transmission connecting axle (11) runs through location connecting plate (41), the top and the fourth gear (45) intermeshing of driven gear (14), transmission connecting axle (11) are connected with location connecting plate (41) rotation through the bearing.

8. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 4, wherein: positioning connection board (41) is run through in transmission threaded rod (46), the one end of transmission threaded rod (46) is connected with the back cell wall rotation of mounting groove, the other end of transmission threaded rod (46) runs through the front cell wall of mounting groove and outwards extends, the both ends of transmission threaded rod (46) all are connected, two through the cell wall rotation of bearing and mounting groove fixed guide arm (47) all run through positioning connection board (41), the one end of fixed guide arm (47) is pegged graft inside the back cell wall of mounting groove, the other end of fixed guide arm (47) runs through the front cell wall of mounting groove and outwards extends, the extension end of fixed guide arm (47) passes through the bolt and bears base (1) fixed connection.

9. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 4, wherein: the positioning sleeve (64) is fixedly installed inside the positioning clamping sleeve (44), a through groove is formed in the middle of the front face of the second rotating shaft (42), and the guiding connecting body (62) is arranged inside the through groove of the second rotating shaft (42).

10. The working system for remotely detecting the accuracy of the gun barrel on line according to claim 1, wherein: the back of the displacement detection plate (67) is fixedly provided with an infrared sensor, and one end, close to the detection transmission arm (61), of the infrared sensor is arranged to be an arc surface.

Technical Field

The invention relates to a precision detection system, in particular to a working system for remotely detecting the precision of a gun barrel on line, and belongs to the technical field of gun detection.

Background

The barrel is one of the main components of the firearm, and is usually made of a heat-resistant and non-deformable metal tube, and is connected to the chamber, so that when the bullet is fired, the expanding gas generated by the explosion or pressure of gunpowder or other power can push the bullet through the barrel, and finally the bullet becomes a high-speed projectile to be ejected.

The gun barrel is an important component of the firearm, and after the gun barrel is formed, various data of the gun barrel are required to be detected, wherein the data comprise density, melt mass flow rate, hydrostatic pressure, ring rigidity, flatness, ring flexibility, thermal stability, gas component resistance, rapid crack propagation resistance, component content detection and the like. In the process of detecting the gun barrel, the rigidity and the thermal stability of the ring of the gun barrel and the flatness and the straightness of the interior of the gun barrel are mainly measured. When carrying out inside flatness, the straightness accuracy of barrel and measuring, need carry out the clamping to the barrel, at the in-process of clamping barrel, at first will guarantee that the barrel is in the horizontality, secondly will carry out the clamping to the both ends of barrel to the clamping subassembly at both ends will maintain coaxial state at rotatory in-process, just can guarantee the accuracy of barrel data in testing process.

Disclosure of Invention

The invention aims to solve the problems and provide a working system for remotely and online detecting the accuracy of a gun barrel.

The invention realizes the purpose through the following technical scheme, and the working system for remotely detecting the accuracy of the gun barrel on line comprises:

the device comprises a bearing base, wherein one side of the top end of the bearing base is fixedly connected with an installation back plate, the front side of the installation back plate is fixedly connected with a first four-jaw chuck, the other side of the top end of the bearing base is slidably provided with a driving assembly, the back side of the driving assembly is fixedly connected with a second four-jaw chuck, and the front side of the driving assembly is fixedly provided with a detection assembly;

the detection assembly comprises a positioning sleeve, a linear bearing is fixedly arranged in the positioning sleeve, a sliding connecting rod is slidably connected in the linear bearing, one end of the sliding connecting rod is fixedly connected with a guide connecting body, a detection transmission arm is rotatably arranged in the guide connecting body, one end of the sliding connecting rod is fixedly provided with a fixed support, and the front surface of the fixed support is fixedly provided with a displacement detection plate;

detect the driving arm, the one end fixedly connected with locating piece that detects the driving arm, one side fixed mounting of locating piece has the test table of examining, one side of examining the test table rotates the installation and rotates the ball, the other end fixed mounting that detects the driving arm has infrared emitter, infrared emitter's one end fixed mounting has the transmission eye.

And an image acquisition device is arranged to monitor the working system in real time, acquire images of the detection assembly and the detection transmission arm and transmit the images to a remote terminal through a wireless network.

Preferably, the sliding installation groove has been seted up on the top that bears the base, drive assembly slidable mounting is inside the mounting groove, the logical groove of connection has been seted up to one side cell wall of mounting groove, the inside that the logical groove of connection sets up the transmission connecting axle, the one end fixed mounting of transmission connecting axle has driven pinion, the middle part of transmission connecting axle rotates and is connected with support bearing, the other end fixed mounting of transmission connecting axle has driven gear.

Preferably, the front of installation backplate is rotated and is installed first pivot, first pivot runs through the installation backplate and outwards extends, the extension end fixed mounting of first pivot has first gear, the bottom meshing of first gear is connected with the second gear, the second gear rotates with the installation backplate and is connected.

Preferably, drive assembly includes the positioning connection board, the top at the positioning connection board back is rotated and is installed the second pivot, run through the positioning connection board and outwards extend of second pivot, the extension end fixed mounting of second pivot has the third gear, the bottom meshing of third gear is connected with the fourth gear, the extension end of second pivot is rotated and is connected with the location cutting ferrule, the bottom threaded connection of positioning connection board has the transmission threaded rod, the both sides of transmission threaded rod all are provided with fixed guide.

Preferably, first four-jaw chuck and the same and symmetry setting of second four-jaw chuck structure, first four-jaw chuck fixed connection is in the one end of first pivot, second four-jaw chuck fixed connection is in the one end of second pivot, first four-jaw chuck and second four-jaw chuck all set up to the four-jaw from the centering chuck.

Preferably, the outer lane of support bearing and the inner wall fixed connection who is connected logical groove, the top integrated into one piece at transmission connecting axle middle part has spacing boss, spacing boss and support bearing's inner circle joint, support bearing sets up to clearance fit with the assembly mode of transmission connecting axle.

Preferably, the top end of the driven gear shaft is meshed with the second gear, the other end of the transmission connecting shaft penetrates through the positioning connecting plate, the top end of the driven gear is meshed with the fourth gear, and the transmission connecting shaft is rotatably connected with the positioning connecting plate through a bearing.

Preferably, the transmission threaded rod runs through the positioning connection plate, the one end of transmission threaded rod is connected with the back cell wall rotation of mounting groove, the other end of transmission threaded rod runs through the front cell wall of mounting groove and outwards extends, the both ends of transmission threaded rod all are connected with the cell wall rotation of mounting groove through the bearing, two the fixed guide all runs through the positioning connection plate, the one end of fixed guide is pegged graft inside the back cell wall of mounting groove, the other end of fixed guide runs through the front cell wall of mounting groove and outwards extends, the extension end of fixed guide passes through bolt and bears base fixed connection.

Preferably, the positioning sleeve is fixedly installed inside the positioning clamping sleeve, a through groove is formed in the middle of the front face of the second rotating shaft, and the guiding connecting body is arranged inside the through groove of the second rotating shaft.

Preferably, the back surface of the displacement detection plate is fixedly provided with an infrared sensor, and one end of the infrared sensor, which is close to the detection transmission arm, is provided with a cambered surface.

The invention has the beneficial effects that:

the gun barrel to be detected is fixed by the two coaxial four-jaw self-centering chucks, so that the stability of the gun barrel to be detected in the detection process is improved, the two four-jaw self-centering chucks synchronously rotate through the transmission connecting shaft, the stability of the gun barrel to be detected in the rotation process is improved, and the flatness and the straightness of the inner wall of the gun barrel are conveniently detected.

Secondly, the detection transmission arm is used for amplifying the jumping condition of the rotating ball on the inner wall of the gun barrel to be detected, and then the infrared sensor and the infrared transmitter are used for acquiring amplified data, so that the observability of the data is improved, the accurate certainty degree of the data detection is improved, and the detection assembly is used for detecting the flatness and the straightness, so that the detection is simpler and more convenient.

Thirdly, the linear bearing is utilized to support the linear motion of the sliding connecting rod, and meanwhile, the positioning sleeve ensures that the axis of the sliding connecting rod and the axis of the gun barrel to be detected are in the same plane and parallel, so that the accuracy of detecting the planeness and the straightness of the rotating ball is improved, and the reliability of data is improved.

Drawings

FIG. 1 is a schematic view of the overall assembly structure of the present invention;

FIG. 2 is a sectional view of the assembly of the sub-assembly of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 2 at C according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 2;

FIG. 7 is an enlarged view of the detecting assembly of the present invention;

FIG. 8 is a schematic view of a partial assembly of the inspection assembly of the present invention;

FIG. 9 is an enlarged view of E of FIG. 8 according to the present invention;

FIG. 10 is an enlarged view of the structure at F in FIG. 8 according to the present invention.

In the figure: 1. a load bearing base; 11. a transmission connecting shaft; 12. a driven gear shaft; 13. a support bearing; 14. a driven gear; 2. mounting a back plate; 21. a first rotating shaft; 22. a first gear; 23. a second gear; 3. a first four-jaw chuck; 4. a drive assembly; 41. positioning the connecting plate; 42. a second rotating shaft; 43. a third gear; 44. positioning the clamping sleeve; 45. a fourth gear; 46. a transmission threaded rod; 47. fixing the guide rod; 5. a second four-jaw chuck; 6. a detection component; 61. detecting the transmission arm; 611. positioning blocks; 612. a detection table; 613. rotating the ball; 614. an infrared emitter; 615. a transmitting eye; 62. a guiding connector; 63. a sliding connecting rod; 64. a positioning sleeve; 65. a linear bearing; 66. fixing a bracket; 67. and (6) a displacement detection plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, a working system for remote online detection of barrel accuracy includes:

bear base 1, bear one side fixedly connected with installation backplate 2 on base 1 top, the first four-jaw chuck of front fixedly connected with 3 of installation backplate 2, the opposite side slidable mounting who bears base 1 top has drive assembly 4, the back fixedly connected with second four-jaw chuck 5 of drive assembly 4, the positive fixed mounting of drive assembly 4 has detection module 6.

As a technical optimization scheme of the invention, the top end of the bearing base 1 is provided with a sliding installation groove, the driving component 4 is slidably installed in the installation groove, one side groove wall of the installation groove is provided with a connecting through groove, the connecting through groove penetrates through the bearing base 1, a transmission connecting shaft 11 is arranged in the connecting through groove, one end of the transmission connecting shaft 11 is fixedly provided with a driven gear shaft 12, the middle part of the transmission connecting shaft 11 is rotatably connected with a supporting bearing 13, the other end of the transmission connecting shaft 11 is fixedly provided with a driven gear 14, and the diameters of the driven gear 14 and the driven gear shaft 12 are the same.

As a technical optimization scheme of the invention, a first rotating shaft 21 is rotatably mounted on the front surface of a mounting back plate 2, the first rotating shaft 21 is rotatably connected with the mounting back plate 2 through a bearing, the mounting back plate 2 is welded at the top end of a bearing base 1, the first rotating shaft 21 penetrates through the mounting back plate 2 and extends outwards, a first gear 22 is fixedly mounted at the extending end of the first rotating shaft 21, the first gear 22 is arranged on the back surface of the mounting back plate 2, a second gear 23 is meshed and connected with the bottom end of the first gear 22, and the second gear 23 is rotatably connected with the mounting back plate 2 through a mounting shaft.

As a technical optimization scheme of the invention, the driving assembly 4 comprises a positioning connecting plate 41, the bottom of the positioning connecting plate 41 is slidably mounted inside the mounting groove, a second rotating shaft 42 is rotatably mounted at the top of the back of the positioning connecting plate 41, the second rotating shaft 42 is connected with the positioning connecting plate 41 through a bearing, the second rotating shaft 42 penetrates through the positioning connecting plate 41 and extends outwards, a third gear 43 is fixedly mounted at the extending end of the second rotating shaft 42, the third gear 43 is arranged on the front surface of the positioning connecting plate 41, the bottom end of the third gear 43 is connected with a fourth gear 45 in a meshing manner, and the fourth gear 45 is rotatably connected with the positioning connecting plate 41 through a pin shaft.

As a technical optimization scheme of the present invention, the extending end of the second rotating shaft 42 is rotatably connected with a positioning sleeve 44, the back of the positioning sleeve 44 is integrally formed with three connecting clamp arms, the three connecting clamp arms are all fixedly inserted inside the positioning connecting plate 41, the middle of the front of the positioning sleeve 44 is provided with an insertion through groove, the two side groove walls of the insertion through groove are both provided with limiting clamp grooves, the bottom of the positioning connecting plate 41 is in threaded connection with a transmission threaded rod 46, and the two sides of the transmission threaded rod 46 are both provided with fixed guide rods 47.

As a technical optimization scheme of the invention, the first four-jaw chuck 3 and the second four-jaw chuck 5 are identical in structure and symmetrically arranged, the first four-jaw chuck 3 is fixedly connected to one end of the first rotating shaft 21, the second four-jaw chuck 5 is fixedly connected to one end of the second rotating shaft 42, the first four-jaw chuck 3 and the second four-jaw chuck 5 are both arranged to be four-jaw self-centering chucks, and the axes of the first four-jaw chuck 3 and the second four-jaw chuck 5 are collinear.

As a technical optimization scheme of the invention, an outer ring of a support bearing 13 is fixedly connected with an inner wall of a connecting through groove, the support bearing 13 is arranged in the middle of the inside of the connecting through groove, a limit boss is integrally formed at the top end of the middle of a transmission connecting shaft 11 and is clamped with an inner ring of the support bearing 13, a vicious limit clamping groove is formed in the inner wall of the inner ring of the support bearing 13, the limit boss is clamped in the limit clamping groove, and the support bearing 13 and the transmission connecting shaft 11 are assembled in a clearance fit manner, namely: the transmission connection shaft 11 can slide inside the support bearing 13.

As a technical optimization scheme of the invention, the top end of the driven gear shaft 12 is meshed with the second gear 23, the other end of the transmission connecting shaft 11 penetrates through the positioning connecting plate 41 and extends outwards, the driven gear 14 is fixedly arranged at the extending end of the transmission connecting shaft 11, the extending end of the transmission connecting shaft 11 is fixedly provided with the first rocking handle, the top end of the driven gear 14 is meshed with the fourth gear 45, the driven gear 14 is arranged on the front surface of the positioning connecting plate 41, and the transmission connecting shaft 11 is rotatably connected with the positioning connecting plate 41 through a bearing.

As a technical optimization scheme of the invention, a transmission threaded rod 46 penetrates through the positioning connecting plate 41, the transmission threaded rod 46 is arranged below the transmission connecting shaft 11, one end of the transmission threaded rod 46 is rotatably connected with the back groove wall of the mounting groove, the other end of the transmission threaded rod 46 penetrates through the front groove wall of the mounting groove and extends outwards, a second rocking handle is fixedly arranged at the extending end of the transmission threaded rod 46, two ends of the transmission threaded rod 46 are rotatably connected with the groove wall of the mounting groove through bearings, the diameters of the first gear 22 and the third gear 43 are the same, and the diameters of the second gear 23 and the fourth gear 45 are the same.

As a technical optimization scheme of the invention, two fixed guide rods 47 penetrate through the positioning connecting plate 41, one ends of the fixed guide rods 47 are inserted into the back groove wall of the mounting groove, the other ends of the fixed guide rods 47 penetrate through the front groove wall of the mounting groove and extend outwards, limiting lug plates are integrally formed on two sides of the extending end of each fixed guide rod 47, and the limiting lug plates of the extending end of each fixed guide rod 47 are fixedly connected with the bearing base 1 through bolts.

As a technical optimization scheme of the invention, the detection assembly 6 comprises a positioning sleeve 64, a linear bearing 65 is fixedly installed inside the positioning sleeve 64, a sliding connecting rod 63 is slidably connected inside the linear bearing 65, one end of the sliding connecting rod 63 is fixedly connected with a guide connecting body 62, a detection transmission arm 61 is rotatably installed inside the guide connecting body 62, one end of the sliding connecting rod 63 is fixedly installed with a fixed bracket 66, and the front surface of the fixed bracket 66 is fixedly installed with a displacement detection plate 67.

As a technical optimization scheme of the present invention, one end of the detection transmission arm 61 is fixedly connected with a positioning block 611, one side of the positioning block 611 is fixedly installed with a detection table 612, the detection table 612 is set to be conical, one side of the detection table 612 is rotatably installed with a rotating ball 613, the rotating ball 613 is rotatably installed at the vertex of the detection table 612, the other end of the detection transmission arm 61 is fixedly installed with an infrared emitter 614, and one end of the infrared emitter 614 is fixedly installed with an emitting eye 615.

As a technical optimization scheme of the present invention, the positioning sleeve 64 is fixedly installed inside the positioning sleeve 44, a through groove is formed in the middle of the front surface of the second rotating shaft 42, the guiding connector 62 is arranged inside the through groove of the second rotating shaft 42, a detection arm installation groove is formed in the front surface of the sliding connecting rod 63, the detection arm installation groove penetrates through the sliding connecting rod 63 and the guiding connector 62, and one end of the detection transmission arm 61 is rotatably connected with the guiding connector 62 through a pin shaft.

As a technical optimization scheme of the invention, an infrared sensor is fixedly installed on the back surface of the displacement detection plate 67, one end, close to the detection transmission arm 61, of the infrared sensor is provided with a cambered surface, the detection transmission arm 61 swings in the detection arm installation groove by taking a pin shaft as a center, and the radius of the cambered surface of the infrared sensor is the same as the diameter of the swing arc of the detection transmission arm 61.

When the invention is used;

please refer to fig. 1 to 10;

assembling the device as shown in fig. 1, and then placing the device on the top end of the gun barrel detection device;

carrying out operation one;

firstly, placing one end of a gun barrel to be detected between four clamping jaws of a first four-jaw chuck 3, and then fixing one end of the gun barrel to be detected through the four clamping jaws;

then, a clockwise second rocking handle is rotated, the second rocking handle drives a transmission threaded rod 46 to rotate clockwise, the transmission threaded rod 46 drives the positioning connecting plate 41 to move towards the installation backboard 2, and further drives the second four-jaw chuck 5 to move towards the first four-jaw chuck 3;

when the other end of the gun barrel to be detected is positioned between the four clamping jaws of the second four-jaw chuck 5, stopping rotating the second rocking handle, and fixing the other end of the gun barrel to be detected through the four clamping jaws of the second four-jaw chuck 5;

when the positioning connecting plate 41 moves, the positioning connecting plate 41 drives the transmission connecting shaft 11 to synchronously move in the same direction, and the driven gear shaft 12 and the second gear 23 are always in a meshed state in the moving process of the transmission connecting shaft 11;

carrying out operation two;

then, the sliding connecting rod 63 is pushed, the sliding connecting rod 63 horizontally and linearly moves inside the second rotating shaft 42 through the linear bearing 65, and then the detection transmission arm 61 is driven to move towards the inside of the barrel to be detected, so that the rotating ball 613 is in contact with the inner wall of the barrel to be detected;

carrying out operation three;

then, the first rocking handle is rotated to drive the transmission connecting shaft 11 to rotate clockwise, the transmission connecting shaft 11 drives the fourth gear 45 to rotate anticlockwise through the driven gear 14, the fourth gear 45 is meshed with the transmission third gear 43, the third gear 43 drives the second rotating shaft 42 to rotate along the pointer, and the second rotating shaft 42 drives the second four-jaw chuck 5 to rotate clockwise;

the transmission connecting shaft 11 drives the driven gear shaft 12 to rotate clockwise, the driven gear shaft 12 is meshed with and drives the second gear 23, the second gear 23 rotates anticlockwise, the second gear 23 is meshed with and drives the first gear 22, the first gear 22 drives the first rotating shaft 21 to rotate clockwise, and the first rotating shaft 21 drives the first four-jaw chuck 3 to rotate clockwise;

the first four-jaw chuck 3 and the second four-jaw chuck 5 simultaneously drive the barrel to be detected to rotate;

carrying out operation four;

the gun barrel to be detected rotates at a constant speed, the rotating ball 613 jumps on the inner wall of the gun barrel to be detected and then drives the detection transmission arm 61 to swing, the detection transmission arm 61 drives the infrared emitter 614 to swing, infrared rays emitted by the emitting eye 615 jump on the infrared sensor on the back of the displacement detection plate 67, the infrared sensor records the jumping track of the infrared rays, and calculated data are compared with the standard interval of the flatness of the inner wall of the gun barrel;

carrying out operation five;

after the flatness detection is finished, stopping rotating the first rocking handle, directly pushing the sliding connecting rod 63 slowly at a constant speed through the fixing support 66, enabling the rotating ball 613 to move linearly on the inner wall of the gun barrel to be detected until the fixing support 66 cannot push the rotating ball, then recording and storing light spot jumping data of the infrared emitter 614 detected by the displacement detection plate 67, and converting and calculating the linearity of the inner wall of the gun barrel;

then, the gun barrel to be detected rotates for a quarter of a circle through the first rocking handle, then the fixing support 66 is slowly pulled at a constant speed, the light spot jumping data of the infrared emitter 614 detected by the displacement detection plate 67 is recorded and stored again, and the straightness of the inner wall of the gun barrel is converted and calculated;

and rotating the gun barrel to be detected for one fourth again, recording data again, then rotating the gun barrel to be detected for one fourth, calculating the average value of the straightness of the inner wall of the gun barrel to be detected obtained for four times, and comparing the final straightness value with the straightness standard interval of the inner wall of the gun barrel.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.