In-bore scanning device

Abstract

The invention relates to an in-bore scanning device, which belongs to the technical field of in-bore scanning and comprises a main shaft assembly, a supporting pipe frame, a grating ruler, a centering mechanism, a laser sensor, a supporting unit, a pull rope sensor and a driving assembly, the supporting pipe frame is slidably arranged on the main shaft assembly. The grating ruler is arranged on the supporting pipe frame; the centering mechanism is arranged on the main shaft assembly; the laser sensor is arranged at the lower end of the spindle assembly; the supporting unit is rotationally arranged at the lower end of the spindle assembly and connected with the laser sensor. The pull rope sensor is arranged on the supporting unit; the driving assembly is arranged at the lower end of the spindle assembly, and the output end is connected with the supporting unit. Through self-adaptive adjustment, centering adjustment can be carried out according to barrels with different calibers, the distance between the laser sensor and the inner wall of the barrel can be synchronously adjusted, the scanning precision can be improved, and the abrasion conditions of different depth positions can be measured.

Description

Technical Field

[0001] The present invention relates to the technical field of in-bore scanning, and in particular to an in-bore scanning device. Background Art

[0002] Artillery occupies an important position in military weapons, with advantages such as low price and mature technology. While achieving long range, high initial velocity and high firing rate, the repeated action of high temperature, high pressure gunpowder gas and high-speed projectiles causes wear of the inner bore structure of the gun barrel, which reduces the gun's shooting performance and affects the gun's life. At present, the change of gun's initial velocity is calibrated by the radial wear of the barrel, so as to predict the remaining life of the barrel. Therefore, the study of efficient and accurate gun barrel inner diameter detection methods is of great significance for judging the gun's shooting performance and remaining life.

[0003] The inner bore of a gun barrel has the characteristics of long length, small caliber, and rifling. The difficulty in measuring its inner diameter lies not only in the high precision required for the data, but also in the great difficulties brought about by the narrow measuring space for the design and installation of displacement sensors, mechanical centering, and positioning devices. The measuring devices in the prior art can only measure barrels of corresponding calibers. Different calibers of barrels require different types of measuring devices and cannot be universalized. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose an in-bore scanning device which can perform centering adjustment according to barrels of different calibers through adaptive adjustment, can synchronously adjust the distance between the laser sensor and the inner wall of the barrel, can improve the scanning accuracy, and can measure the wear conditions at different depths.

[0005] The technical solution of the present invention is: an in-bore scanning device, comprising: Spindle assembly; A supporting pipe rack is slidably disposed on the spindle assembly; A grating ruler is arranged on the supporting tube frame, and an output end of the grating ruler is connected to the spindle assembly; There are two centering mechanisms, and both centering mechanisms are arranged on the spindle assembly; There are four laser sensors, and the four laser sensors are rotatably arranged at the lower end of the spindle assembly; A support unit, rotatably disposed at the lower end of the spindle assembly and connected to the laser sensor; A pull rope sensor is arranged on the support unit; The driving assembly is arranged at the lower end of the spindle assembly, and the output end of the driving assembly is connected to the supporting unit.

[0006] Preferably, the spindle assembly includes a hollow shaft slidably disposed in the supporting pipe frame, a handle disposed on one end of the hollow shaft, and a connecting seat disposed on the other end of the hollow shaft and connected to the driving assembly.

[0007] Preferably, a fixing mechanism is provided on the supporting pipe rack; the fixing mechanism includes two arc-shaped blocks, four abutting columns respectively provided on the two arc-shaped blocks, a scissor-type supporting frame provided on the arc-shaped blocks and connected to the supporting pipe rack, a pressing sleeve slidably provided on the supporting pipe rack, two connecting rods one with two ends respectively connected to the arc-shaped blocks and the pressing sleeve for rotation, and a spiral sleeve threadedly connected to the supporting pipe rack and abutting against the pressing sleeve.

[0008] Preferably, the centering mechanism includes a support frame arranged on the hollow shaft, three bull's eye balls, three sliding rods arranged on the bull's eye balls and slidably connected to the support frame, a movable frame slidably arranged on the hollow shaft, a limiting nut sleeve threadedly connected to the hollow shaft, and an elastic member whose two ends are respectively connected to the movable frame and the limiting nut sleeve.

[0009] Preferably, the supporting unit includes a plurality of connecting mechanisms respectively connected to the laser sensors, a supporting mechanism arranged on the output end of the driving assembly and connected to the connecting mechanism, a pushing mechanism arranged on the connecting seat for pushing the supporting mechanism to move, and a linkage mechanism arranged on the pushing mechanism and the centering mechanism and slidably connected to the hollow shaft.

[0010] Preferably, the supporting mechanism includes a connecting disk arranged on the output end of the driving assembly, a guide frame arranged on the connecting disk, two movable disks respectively slidably arranged at both ends of the guide frame, four groups of two connecting rods each with two ends rotatably connected to the movable disk and the connecting mechanism, and two elastic members respectively arranged on both sides of the guide frame and connected to the movable disk; the guide frame includes a supporting disk, and a plurality of supporting rods all arranged on the supporting disk; the supporting rods are connected to the driving assembly.

[0011] Preferably, the connecting mechanism includes four connecting frames that are slidably arranged on the connecting disk and connected to the laser sensor, and a connecting component that is arranged on the connecting frame and clamped to the upper end of the laser sensor; the connecting frame includes a sliding seat that is slidably arranged on the connecting disk, a telescopic rod that is slidably arranged on the sliding seat and clamped, a connecting block that is arranged on the telescopic rod, and a connecting column that is arranged at the lower end of the connecting block and rotatably connected to the connecting rod 2; the pull rope sensor is arranged on the guide frame and the output end is connected to the connecting column.

[0012] Preferably, the connecting assembly includes a fixed seat arranged on the connecting block, a lower clamping sleeve arranged at the lower end of the fixed seat and connected to the upper end of the laser sensor, a conical pressing sleeve slidably arranged in the fixed seat and abutting against the lower clamping sleeve, and an elastic member arranged on the outer peripheral side of the conical pressing sleeve and connected to the fixed seat and the conical pressing sleeve at both ends respectively.

[0013] Preferably, the pushing mechanism includes a fixed plate arranged in the connecting seat, a support column arranged on the fixed plate and passing through the connecting disk, a mounting seat arranged at the lower part of the support column, a gear rotatably arranged on the mounting seat, two racks that are slidably arranged on the mounting seat and meshingly connected to the gear, two pressure plates that are respectively arranged on the two racks and abut against and slidably connected to the movable disk, and a push rod that is arranged on the pressure plate, slidably connected to the fixed plate and connected to the linkage mechanism.

[0014] Preferably, a sliding groove is provided on the connecting seat; the linkage mechanism includes a connecting plate arranged on the pressure plate and slidably arranged at the sliding groove, two linkage rods one end of which is arranged on the connecting plate, an adjusting nut threadedly connected to the connecting plate and abutting against the linkage rod, two connecting sleeves respectively arranged on the two moving frames and connected to the linkage rod, a steel wire rope arranged on the connecting sleeve close to one side of the supporting pipe rack, and a sliding sleeve slidably arranged on the supporting pipe rack and connected to the steel wire rope.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, after the device is inserted into the barrel, the abutment column is inserted into the barrel and abutted against the end of the barrel through the arc-shaped stopper, and the two abutment columns are distributed on the arc-shaped stopper of the arc structure and are in a relatively horizontal position. Therefore, when it is clamped on barrels of different calibers, it can abut against the barrel, and one with four abutment columns can provide better support. The pressing sleeve is moved downward by rotating the spiral sleeve, and the pressing sleeve pushes the connecting rod to move downward, and the connecting rod pushes the arc-shaped stopper to move. The arc-shaped stopper is supported by a scissor-type support frame to ensure the reliability of its connection, and the supporting force is transmitted to the support pipe frame through the scissor-type support frame. The support pipe frame supports the main shaft assembly, so that the support pipe frame can be stably stuck on the barrel, and the main shaft assembly can slide on the support pipe frame, which can drive the laser sensor to scan in the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 It is a structural schematic diagram of the centering mechanism in the embodiment of the present invention; Figure 4 It is a schematic diagram of the local structure of an embodiment of the present invention; Figure 5 It is a structural explosion diagram of an embodiment of the present invention; Figure 6 It is a structural schematic diagram of the support mechanism in the embodiment of the present invention; Figure 7 It is a schematic diagram of the local structure of the pushing mechanism in the embodiment of the present invention; Figure 8 It is a structural schematic diagram of a connecting frame in an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a connection component in an embodiment of the present invention; Fig.10 It is a structural schematic diagram of the driving mechanism in the embodiment of the present invention; Fig.11 for Fig.10 Schematic diagram of the local enlarged structure at point B in the middle.

[0018] Figure numerals: 1, spindle assembly; 101, hollow shaft; 102, handle; 103, connecting seat; 1031, sliding groove; 2, support pipe rack; 3, fixing mechanism; 301, arc stopper; 302, abutment column; 303, scissor-type support frame; 304, connecting rod 1; 305, pressing sleeve; 306, spiral sleeve; 4, grating ruler; 5, centering mechanism; 501, bull's eye ball; 502, sliding rod; 503, supporting frame; 504, moving frame; 505, elastic member 1; 506, limiting nut sleeve; 6, laser sensor; 7, connecting frame; 701, connecting block; 702, connecting column; 703, telescopic rod; 704, sliding seat; 7031, limiting screw; 8, Support mechanism; 801, connecting plate; 802, moving plate; 803, guide frame; 804, connecting rod two; 805, elastic member two; 9, pushing mechanism; 901, fixing plate; 902, supporting column; 903, mounting seat; 904, gear; 905, rack; 906, pressure plate; 907, push rod; 10, pull rope sensor; 11, driving assembly; 12, connecting assembly; 1201, fixing seat; 1202, lower clamping sleeve; 1203, conical pressure sleeve; 1204, elastic member three; 13, linkage mechanism; 1301, connecting plate; 1302, linkage rod; 1303, adjusting nut; 1304, connecting sleeve; 1305, wire rope; 1306, sliding sleeve. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example

[0023] like Figure 1-11 As shown, an in-bore scanning device proposed by the present invention includes a spindle assembly 1, a support tube frame 2, a grating ruler 4, a centering mechanism 5, a laser sensor 6, a support unit, a pull-wire sensor 10, and a drive assembly 11; The support tube frame 2 is slidably arranged on the spindle assembly 1; the spindle assembly 1 includes a hollow shaft 101 slidably arranged in the support tube frame 2, a handle 102 arranged on one end of the hollow shaft 101, and a connecting seat 103 arranged on the other end of the hollow shaft 101 and connected to the drive assembly 11; the grating scale 4 is arranged on the support tube frame 2, and the output end of the grating scale 4 is connected to the spindle assembly 1; two centering mechanisms 5 are provided, and the two centering mechanisms 5 are both arranged on the spindle assembly 1; four laser sensors 6 are provided, and the four laser sensors 6 are all rotatably arranged at the lower end of the spindle assembly 1; the support unit is rotatably arranged at the lower end of the spindle assembly 1 and connected to the laser sensor 6; the pull rope sensor 10 is arranged on the support unit; the drive assembly 11 is arranged at the lower end of the spindle assembly 1, and the output end of the drive assembly 11 is connected to the support unit.

[0024] Among them, the support unit includes a plurality of connecting mechanisms respectively connected to the laser sensor 6, a support mechanism 8 arranged on the output end of the driving component 11 and connected to the connecting mechanism, a pushing mechanism 9 arranged on the connecting seat 103 for pushing the supporting mechanism 8 to move, and a linkage mechanism 13 arranged on the pushing mechanism 9 and the centering mechanism 5 and slidably connected to the hollow shaft 101; the support unit is used to connect and fix the laser sensor 6, and is used to connect to the driving component 11.

[0025] In this embodiment, the centering mechanism 5 is driven to contract by the linkage mechanism 13, so that the spacing of the centering mechanism 5 is smaller than the inner wall of the barrel, so that the device can be easily inserted into the barrel, and the linkage mechanism 13 can push the supporting mechanism 8 to move through the pushing mechanism 9, so that the connecting frame 7 drives the laser sensor 6 to contract, so that the gap between the laser sensors 6 can be reduced, so that it can be easily inserted into the barrel, and the laser sensor 6 can be prevented from colliding with the inner wall of the barrel. After being inserted into the inner wall of the barrel, it is first fixed to the end of the barrel by the fixing mechanism 3, and after the linkage mechanism 13 is released, the centering mechanism 5 is automatically unfolded and rests on the inner wall of the barrel, and can perform adaptive centering adjustment according to the caliber of the barrel, and the centering mechanism 5 pushes the pushing mechanism 9 to move through the linkage mechanism 13, and the pushing mechanism 9 pushes the supporting mechanism 8 to move, so that the supporting mechanism 8 can adaptively push the connecting frame 7 to move, and drive the laser sensor 6 to adjust. The laser sensor 6 is brought close to the inner wall of the barrel, thereby increasing the accuracy of detection, and the displacement distance of the laser sensor 6 is detected by the draw-wire sensor 10. The driving assembly 11 drives the support mechanism 8 to rotate, and the pushing mechanism 9 rotates relative to the support mechanism 8, so that the pushing mechanism 9 is relatively fixed on the spindle assembly 1, and the support mechanism 8 drives the connecting frame 7 to rotate, thereby driving the laser sensor 6 to rotate. If a conductive slip ring is not used, the driving assembly 11 is required to drive the support mechanism 8 to rotate forward one circle and then reverse one circle for detection to avoid entanglement of the signal output lines of the laser sensor 6 and the draw-wire sensor 10; the handle 102 can drive the hollow shaft 101 to move, and the support tube frame 2 is fixed on the barrel, the hollow shaft 101 drives the connecting seat 103 to move, thereby driving the laser sensor 6 to move, so that the inner wall of the barrel at different depths can be scanned, and the grating ruler 4 can measure the distance moved by the spindle assembly 1.

[0026] The output data of the pull-wire sensor 10 plus the fixed connection distance plus the output data of the laser sensor 6 is the final test data. The detected data is inserted into the ellipse fitting formula for calculation, so that the center of the circle can be determined, and the wear amount of the inner wall of the barrel relative to the center of the circle can be calculated. Example

[0027] like Figure 1-11 As shown, an in-bore scanning device proposed by the present invention, compared with the first embodiment, in this embodiment, a fixing mechanism 3 is arranged on the support tube frame 2; the fixing mechanism 3 includes two arc-shaped blocks 301, four abutting columns 302 respectively arranged on the two arc-shaped blocks 301, a scissor-type support frame 303 arranged on the arc-shaped blocks 301 and connected to the support tube frame 2, a pressing sleeve 305 slidably arranged on the support tube frame 2, two connecting rods 304 with two ends respectively rotatably connected to the arc-shaped blocks 301 and the pressing sleeve 305, and a spiral sleeve 306 threadedly connected to the support tube frame 2 and abutting against the pressing sleeve 305.

[0028] In this embodiment, after the device is inserted into the barrel, the abutment column 302 is inserted into the barrel and abutted against the end of the barrel through the arc stopper 301, and the two abutment columns 302 are distributed on the arc stopper 301 of the arc structure and are in a relatively horizontal position. Therefore, when it is clamped on barrels of different calibers, it can abut against the barrel, and one with four abutment columns 302 can better support it. By rotating the spiral sleeve 306, the pressing sleeve 305 moves downward, the pressing sleeve 305 pushes the connecting rod 1 304 to move downward, and the connecting rod 1 304 pushes the arc stopper 301 to move. The arc stopper 301 is supported by the scissor-type support frame 303 to ensure the reliability of its connection, and the supporting force is transmitted to the support pipe frame 2 through the scissor-type support frame 303. The support pipe frame 2 supports the main shaft assembly 1, so that the support pipe frame 2 can be stably stuck on the barrel, and the main shaft assembly 1 can slide on the support pipe frame 2, which can drive the laser sensor 6 to scan in the barrel. Example

[0029] like Figure 1-11 As shown, an in-bore scanning device proposed by the present invention, compared with embodiment one or embodiment two, the centering mechanism 5 in this embodiment includes a support frame 503 arranged on the hollow shaft 101, three bull's eye balls 501 are arranged, three sliding rods 502 are arranged and arranged on the bull's eye balls 501 and are slidably connected to the support frame 503, a movable frame 504 is slidably arranged on the hollow shaft 101, a limiting nut sleeve 506 is threadedly connected to the hollow shaft 101, and an elastic member 505 with two ends respectively connected to the movable frame 504 and the limiting nut sleeve 506.

[0030] In this embodiment, after the device is inserted into the barrel, the elastic member 505 pushes the movable frame 504 to move, and the movable frame 504 drives the sliding rod 502 to move, and the sliding rod 502 slides on the support frame 503, so that the sliding rod 502 expands outward while moving downward, thereby driving the bull's eye ball 501 to move, so that the bull's eye ball 501 can be against the inner wall of the barrel, thereby completing automatic centering and supporting the spindle assembly 1, so that the laser sensor 6 can measure more stably.

[0031] The sliding sleeve 1306 drives the steel wire rope 1305 to move, and the steel wire rope 1305 drives the connecting sleeve 1304 to move, so that the connecting sleeve 1304 drives the moving frame 504 to move upward, so that the sliding rod 502 contracts, so that the spacing between the bull's eye balls 501 can be smaller than the inner wall of the barrel, and the device can be easily inserted into the barrel. Example

[0032] like Figure 1-11As shown, an in-bore scanning device proposed by the present invention, compared with embodiment one or embodiment two or embodiment three, the supporting mechanism 8 in this embodiment includes a connecting disk 801 arranged on the output end of the driving component 11, a guide frame 803 arranged on the connecting disk 801, two movable disks 802 are respectively slidably arranged at both ends of the guide frame 803, four groups of connecting rods 804 are provided, each group has two connecting rods 804, and the two ends are respectively connected to the movable disk 802 and the connecting mechanism, and two elastic members 805 are respectively arranged on both sides of the guide frame 803 and connected to the movable disk 802; the guide frame 803 includes a supporting disk, and a plurality of supporting rods that are all arranged on the supporting disk; the supporting rods are connected to the driving component 11.

[0033] Furthermore, the pushing mechanism 9 includes a fixed plate 901 arranged in the connecting seat 103, a support column 902 arranged on the fixed plate 901 and passing through the connecting disk 801, a mounting seat 903 arranged at the lower part of the support column 902, a gear 904 rotatably arranged on the mounting seat 903, two racks 905 are provided and both are slidably arranged on the mounting seat 903 and meshingly connected to the gear 904, two pressure plates 906 are provided and are respectively arranged on the two racks 905 and abut against and slidably connected to the movable disk 802, and a push rod 907 is provided on the pressure plate 906 and is slidably connected to the fixed plate 901 and connected to the linkage mechanism 13; the pushing mechanism 9 is used to receive the action transmitted by the centering mechanism 5 through the linkage mechanism 13, and transmit the corresponding action to the supporting mechanism 8, so that the supporting mechanism 8 can follow the position of the centering mechanism 5 for adaptive adjustment.

[0034] In this embodiment, the elastic force of the elastic member 2 805 is smaller than the elastic force of the elastic member 1 505, so that the elastic member 1 505 can serve as the main thrust. When the pressure exerted by the elastic member 1 505 is no longer transmitted to the pushing mechanism 9 through the linkage mechanism 13, the elastic member 2 805 will push the movable disk 802 to move, and the movable disk 802 will drive the connecting rod 2 804 to move, and the connecting rod 2 804 will drive the connecting frame 7 to move, so that the connecting frame 7 will shrink, driving the laser sensor 6 to shrink, so that it can be easily inserted into the barrel.

[0035] When the pressure of the centering mechanism 5 is transmitted to the push rod 907 through the linkage mechanism 13, the linkage mechanism 13 pushes the push rod 907 to move downward, the push rod 907 pushes the pressure plate 906 to move, the pressure plate 906 pushes the rack 905 to move, the rack 905 drives another rack 905 to move through the gear 904, so that the two pressure plates 906 can move synchronously, push the movable plate 802 to contract, and squeeze the elastic member 2 805, so that the connecting rod 2 804 pushes the connecting frame 7 to move, so that the connecting frame 7 moves away, driving the laser sensor 6 to move, so that the laser sensor 6 can be close to the inner wall of the barrel, and the inner wall of the barrel can be scanned conveniently.

[0036] The support column 902 is supported by the fixed plate 901, the support column 902 supports the mounting seat 903, the mounting seat 903 supports the gear 904 and guides the rack 905, the connecting plate 801 is arranged on the output end of the driving component 11, and the guide frame 803 is arranged on the connecting plate 801, the connecting plate 801 supports and guides the moving plate 802, and the middle parts of the guide frame 803 and the moving plate 802 are both hollow structures, so as to provide space for the rack 905 to rotate relative to each other without interference, which is convenient for the rack 905 to rotate relative to each other. The guide frame 803 is provided with a space for installing a pull-wire sensor 10, so that the output end of the pull-wire sensor 10 can be connected to the movable disk 802, and the moving distance of the connecting column 702 can be measured by the pull-wire sensor 10, that is, the moving distance of the laser sensor 6; a ball is provided on the pressure plate 906, so as to reduce the friction with the movable disk 802, so that the pressure plate 906 can push the movable disk 802 to move without affecting the rotation of the movable disk 802, so that adaptive adjustment can be achieved and rotation scanning can be performed at the same time. Example

[0037] like Figure 1-11 As shown, an in-bore scanning device proposed by the present invention, compared with the first embodiment or the second embodiment or the third embodiment or the fourth embodiment, the connection mechanism in this embodiment includes four connection frames 7 that are slidably arranged on the connection disk 801 and connected to the laser sensor 6, and a connection component 12 that is arranged on the connection frame 7 and is clamped to the upper end of the laser sensor 6; the connection frame 7 includes a sliding seat 704 that is slidably arranged on the connection disk 801, a telescopic rod 703 that is slidably arranged on the sliding seat 704 and clamped, and a connection component 12 that is arranged on the connection frame 7 and is clamped to the upper end of the laser sensor 6. A connecting block 701, and a connecting column 702 arranged at the lower end of the connecting block 701 and rotatably connected to the connecting rod 2 804; the pull rope sensor 10 is arranged on the guide frame 803 and the output end is connected to the connecting column 702; a limiting groove is arranged on the sliding seat 704, and a limiting screw 7031 is arranged on the telescopic rod 703, and the limiting screw 7031 is slidably arranged in the limiting groove. The limiting screw 7031 can limit the maximum sliding distance of the telescopic rod 703 on the sliding seat 704 to prevent the telescopic rod 703 from falling from the sliding seat 704.

[0038] The connecting assembly 12 comprises a fixing seat 1201 arranged on the connecting block 701, a lower clamping sleeve 1202 arranged at the lower end of the fixing seat 1201 and connected to the upper end of the laser sensor 6, a conical pressing sleeve 1203 slidably arranged in the fixing seat 1201 and capable of abutting against the lower clamping sleeve 1202, and an elastic member 3 1204 arranged on the outer peripheral side of the conical pressing sleeve 1203 and having two ends respectively connected to the fixing seat 1201 and the conical pressing sleeve 1203; the upper end of the laser sensor 6 passes through the connecting block 701, and the lower clamping sleeve 1202 is placed on the connecting block 701, the elastic member 3 1204 is sleeved on the conical pressing sleeve 1203, and the conical pressing sleeve 1203 is placed in the fixing seat 1201, and the fixing seat 1201 is fixed. Press on the lower clamping sleeve 1202, so that the conical pressing sleeve 1203 is pressed on the lower clamping sleeve 1202, and the fixed seat 1201 is fixed on the connecting block 701. The elastic member 1204 provides a downward thrust to move the conical pressing sleeve 1203 downward, and the inner wall of the conical pressing sleeve 1203 is a conical structure, so that the conical pressing sleeve 1203 squeezes the lower clamping sleeve 1202, causing the lower clamping sleeve 1202 to deform and shrink, and press on the upper part of the laser sensor 6, so that the laser sensor 6 can be fixed, and the laser sensor 6 can be prevented from falling during use. The laser sensor 6 can be quickly fixed, which is convenient for the installation of the laser sensor 6. When disassembling, you only need to push the conical pressing sleeve 1203 upward.

[0039] In this embodiment, the connecting column 702 is pushed to move by the supporting mechanism 8, and the connecting column 702 drives the connecting block 701 to move, and the connecting block 701 drives the telescopic rod 703 to slide, and the telescopic rod 703 drives the sliding seat 704 to slide or the telescopic rod 703 and the sliding seat 704 slide relative to each other, so that the telescopic rod 703 and the sliding seat 704 can increase the telescopic distance, and can increase the stroke of the connecting block 701, thereby increasing the detection range of the laser sensor 6, and the sliding seat 704 slides on the connecting disk 801, so that the sliding seat 704 can rotate with the connecting disk 801, so that the connecting frame 7 can drive the laser sensor 6 to rotate together while the driving component 11 drives the support mechanism 8 to rotate, thereby making the laser sensor 6 move more smoothly; the laser sensor 6 can be conveniently fixed by the connecting component 12, so that the laser sensor 6 is connected to the connecting frame 7, so that it can move and rotate with the supporting mechanism 8, and can be adaptively adjusted. Example

[0040] like Figure 1-11As shown, an in-bore scanning device proposed by the present invention, compared with embodiment one or embodiment two or embodiment three, embodiment four and embodiment five, in this embodiment, a sliding groove 1031 is arranged on the connecting seat 103; the linkage mechanism 13 includes a connecting plate 1301 arranged on the pressure plate 906 and slidably arranged at the sliding groove 1031, two linkage rods 1302 are arranged, one end of which is arranged on the connecting plate 1301, an adjusting nut 1303 is threadedly connected to the connecting plate 1301 and abuts against the linkage rod 1302, two connecting sleeves 1304 are arranged on two moving frames 504 respectively and connected to the linkage rod 1302, a wire rope 1305 is arranged on the connecting sleeve 1304 on one side close to the supporting pipe frame 2, and a sliding sleeve 1306 is slidably arranged on the supporting pipe frame 2 and connected to the wire rope 1305.

[0041] In this embodiment, the sliding sleeve 1306 drives the steel wire rope 1305 to move, the steel wire rope 1305 drives the connecting sleeve 1304 to move, the connecting sleeve 1304 drives the linkage rod 1302 to move and drives the moving frame 504 to move at the same time, so that the moving frame 504 moves upward, drives the sliding rod 502 to retract, and thus causes the bull's eye ball 501 to retract and can be conveniently inserted into the barrel, and at the same time can drive the laser sensor 6 to retract, thereby preventing the laser sensor 6 from colliding with the barrel, making it convenient to insert the device into the barrel.

[0042] After inserting the device into the barrel, the sliding sleeve 1306 is loosened, the centering mechanism 5 drives the connecting sleeve 1304 to move, the connecting sleeve 1304 drives the wire rope 1305 to move, and the wire rope 1305 drives the sliding sleeve 1306 to slide on the supporting pipe rack 2. The wire rope 1305 is a semi-arc sleeve column structure, so that it can slide along the supporting pipe rack 2. Since the wire rope 1305 is a flexible connection, the sliding sleeve 1306 will not affect the normal movement of the connecting sleeve 1304.

[0043] Among them, when the centering mechanism 5 adapts according to the inner diameter of the barrel, it will synchronously drive the connecting sleeve 1304 to move, the connecting sleeve 1304 drives the linkage rod 1302 to move, the linkage rod 1302 drives the connecting plate 1301 to move, and the connecting plate 1301 drives the pushing mechanism 9 to move, thereby being able to synchronously drive the supporting mechanism 8 to move, so that the connecting frame 7 drives the laser sensor 6 to move, so that the laser sensor 6 can be adaptively adjusted according to the state of the centering mechanism 5, so that the laser sensor 6 is close to the inner wall of the barrel, and the scanning result is more accurate; by loosening the adjusting nut 1303, the linkage rod 1302 can slide on the connecting plate 1301, so that the initial position of the linkage rod 1302 and the connecting plate 1301 relative to each other can be adjusted, and the geometric structure can be adjusted according to the usage situation. After leaving the factory, it can be debugged and adjusted according to the actual usage situation, and the displacement of the laser sensor 6 is measured by the pull rope sensor 10.

[0044] Through this mechanism, the device can be conveniently inserted into the barrel, and the laser sensor 6 can be adaptively adjusted according to the inner diameter of the barrel. The laser sensor 6 is close to the inner wall of the barrel, so more accurate measurement can be performed.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An in-bore scanning device, characterized in that: include, Spindle assembly (1); A supporting pipe frame (2) slidably arranged on the main shaft assembly (1); A grating ruler (4) is arranged on the supporting tube frame (2), and an output end of the grating ruler (4) is connected to the spindle assembly (1); Two centering mechanisms (5) are provided, and both centering mechanisms (5) are provided on the spindle assembly (1); Four laser sensors (6) are provided, and the four laser sensors (6) are all rotatably arranged at the lower end of the spindle assembly (1); A support unit, rotatably disposed at the lower end of the spindle assembly (1) and connected to the laser sensor (6); A pull rope sensor (10), arranged on the support unit; A drive assembly (11) is arranged at the lower end of the spindle assembly (1), and an output end of the drive assembly (11) is connected to the support unit.

2. The in-bore scanning device according to claim 1, characterized in that: The main shaft assembly (1) comprises a hollow shaft (101) slidably disposed in the support pipe frame (2), a handle (102) disposed at one end of the hollow shaft (101), and a connecting seat (103) disposed at the other end of the hollow shaft (101) and connected to the drive assembly (11).

3. The in-bore scanning device according to claim 2, characterized in that: The support pipe rack (2) is provided with a fixing mechanism (3); the fixing mechanism (3) comprises two arc-shaped stoppers (301), four abutting columns (302) respectively arranged on the two arc-shaped stoppers (301), a scissor-type support frame (303) arranged on the arc-shaped stoppers (301) and connected to the support pipe rack (2), a pressing sleeve (305) slidably arranged on the support pipe rack (2), two connecting rods (304) with two ends respectively rotatably connected to the arc-shaped stoppers (301) and the pressing sleeve (305), and a spiral sleeve (306) threadedly connected to the support pipe rack (2) and abutting against the pressing sleeve (305).

4. The in-bore scanning device according to claim 3, characterized in that: The centering mechanism (5) comprises a support frame (503) arranged on the hollow shaft (101), provided with three bull's eye balls (501), three sliding rods (502) arranged on the bull's eye balls (501) and slidably connected to the support frame (503), a moving frame (504) slidably arranged on the hollow shaft (101), a limiting nut sleeve (506) threadedly connected to the hollow shaft (101), and an elastic member (505) having two ends respectively connected to the moving frame (504) and the limiting nut sleeve (506).

5. The in-bore scanning device according to claim 4, characterized in that: The support unit comprises a plurality of connection mechanisms respectively connected to the laser sensors (6), a support mechanism (8) arranged at the output end of the drive assembly (11) and connected to the connection mechanism, a pushing mechanism (9) arranged on the connection seat (103) for pushing the support mechanism (8) to move, and a linkage mechanism (13) arranged on the pushing mechanism (9) and the centering mechanism (5) and slidably connected to the hollow shaft (101).

6. The in-bore scanning device according to claim 5, characterized in that: The support mechanism (8) comprises a connection disk (801) arranged on the output end of the drive assembly (11), a guide frame (803) arranged on the connection disk (801), two movable disks (802) respectively slidably arranged at both ends of the guide frame (803), four groups of two connecting rods (804) each group having two ends respectively connected to the movable disk (802) and the connection mechanism for rotation, and two elastic members (805) respectively arranged on both sides of the guide frame (803) and connected to the movable disk (802); the guide frame (803) comprises a support disk, and a plurality of support rods all arranged on the support disk; the support rods are connected to the drive assembly (11).

7. The in-bore scanning device according to claim 6, characterized in that: The connection mechanism comprises four connection frames (7) which are slidably arranged on the connection disk (801) and connected to the laser sensor (6), and a connection assembly (12) which is arranged on the connection frame (7) and is clamped to the upper end of the laser sensor (6); the connection frame (7) comprises a sliding seat (704) which is slidably arranged on the connection disk (801), a telescopic rod (703) which is slidably arranged on the sliding seat (704) and is clamped, a connection block (701) which is arranged on the telescopic rod (703), and a connection column (702) which is arranged at the lower end of the connection block (701) and is rotatably connected to the second connecting rod (804); the pull rope sensor (10) is arranged on the guide frame (803) and the output end is connected to the connection column (702).

8. The in-bore scanning device according to claim 7, characterized in that: The connecting assembly (12) comprises a fixing seat (1201) arranged on the connecting block (701), a lower clamping sleeve (1202) arranged at the lower end of the fixing seat (1201) and connected to the upper end of the laser sensor (6), a conical pressing sleeve (1203) slidably arranged in the fixing seat (1201) and capable of abutting against the lower clamping sleeve (1202), and an elastic member (1204) arranged on the outer peripheral side of the conical pressing sleeve (1203) and having two ends respectively connected to the fixing seat (1201) and the conical pressing sleeve (1203).

9. The in-bore scanning device according to claim 8, characterized in that: The pushing mechanism (9) comprises a fixing plate (901) arranged in the connecting seat (103), a supporting column (902) arranged on the fixing plate (901) and penetrating the connecting disk (801), a mounting seat (903) arranged at the lower part of the supporting column (902), a gear (904) rotatably arranged on the mounting seat (903), two racks (905) slidably arranged on the mounting seat (903) and meshingly connected with the gear (904), two pressure plates (906) respectively arranged on the two racks (905) and abutting against and slidably connected to the moving disk (802), and a push rod (907) arranged on the pressure plate (906) and slidably connected to the fixing plate (901) and connected to the linkage mechanism (13); the connecting seat (10 3) is provided with a sliding groove (1031); the linkage mechanism (13) comprises a connecting plate (1301) arranged on the pressure plate (906) and slidably arranged at the sliding groove (1031), two linkage rods (1302) one end of which is arranged on the connecting plate (1301), an adjusting nut (1303) threadedly connected to the connecting plate (1301) and abutting against the linkage rod (1302), two connecting sleeves (1304) respectively arranged on two of the moving frames (504) and connected to the linkage rod (1302), a steel wire rope (1305) arranged on the connecting sleeve (1304) on a side close to the supporting pipe frame (2), and a sliding sleeve (1306) slidably arranged on the supporting pipe frame (2) and connected to the steel wire rope (1305).

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