Inflatable shaft assembly device and method of assembling the same

Abstract

The application relates to the technical field of air inflation shafts, and provides an air inflation shaft assembling device and an assembling method thereof. The air inflation shaft assembling device comprises a supporting part, an outer cylinder fixing part arranged on the supporting part, a moving mechanism and a rolling clamping mechanism, the moving mechanism is arranged on the supporting part, the rolling clamping mechanism is arranged on the moving mechanism, a key strip fixing part arranged on the supporting part, a conveying mechanism and a fixing mechanism, the conveying mechanism is arranged on the supporting part, the fixing mechanism is arranged on the side of the conveying mechanism far from the outer cylinder fixing part, and a combination part arranged on the supporting part. The air inflation shaft assembling device can improve the technical problem of low work efficiency caused by manually installing each key strip in the outer cylinder in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air inflation shaft, and in particular to an air inflation shaft assembling device and an assembling method thereof. BACKGROUND

[0002] The air inflation shaft assembling device is a mechanical system for installing and fixing an air inflation shaft (a key component commonly used in a coiled material processing equipment). In assembling a key-bar type air inflation shaft, the existing air inflation shaft assembling device usually directly inserts a whole shaft core (containing a key bar and an air bladder) into an outer cylinder (a hollow cylinder directly contacting the coiled material). However, the air inflation shaft assembled in this way needs to be replaced as a whole when a single key bar or air bladder is damaged, which is too costly. Therefore, the key bars can be separately installed in the outer cylinder, and then the air bladder is inserted, so that the key bars and the air bladder are independent of each other. In this way, only the damaged key bar or air bladder needs to be replaced, without the need for overall replacement, thereby reducing the cost.

[0003] However, since the specifications of the air inflation shafts are different, the key bars are usually separately installed in the outer cylinder by manual work, which is low in work efficiency. SUMMARY

[0004] The air inflation shaft assembling device and the assembling method thereof provided in the embodiments of the present application can improve the technical problem of low work efficiency in the related art that the key bars are separately installed in the outer cylinder by manual work.

[0005] In a first aspect, the embodiments of the present application provide an air inflation shaft assembling device, comprising:

[0006] a support portion;

[0007] an outer cylinder fixing portion provided on the support portion, the fixing portion comprising a moving mechanism and a rolling clamping mechanism, the moving mechanism being provided on the support portion, and the rolling clamping mechanism being provided on the moving mechanism, the rolling clamping mechanism being used for rolling or clamping the outer cylinder;

[0008] a key bar fixing portion provided on the support portion, the key bar fixing portion comprising a conveying mechanism and a fixing mechanism, the conveying mechanism being provided on the support portion, and the fixing mechanism being provided on a side of the conveying mechanism away from the outer cylinder fixing portion, the conveying mechanism being used for conveying the key bar from a key bar input end to a key bar output end, and the fixing mechanism being used for abutting the key bar located on the key bar output end to make the key bar abut the outer cylinder; and

[0009] a combination portion provided on the support portion, the combination portion having a screw output end, the combination portion being used for driving the screw output end to abut the outer cylinder to assemble the outer cylinder and the key bar abutting the outer cylinder;

[0010] The moving mechanism is used to drive the rolling clamping mechanism to move close to or away from the screw output end, and the key strip output end is located directly below the screw output end and directly above the fixing mechanism and between the outer cylinder and the fixing mechanism.

[0011] The technical solutions in the embodiments of the present application have at least the following technical effects:

[0012] The air inflation shaft assembly device provided in the embodiments of the present application supports other components through the support part, fixes the position of the outer cylinder through the rolling clamping mechanism to prevent the outer cylinder from moving during assembly with the key strip, drives the outer cylinder to roll through the rolling clamping mechanism and drives the rolling clamping mechanism to move through the moving mechanism to drive the outer cylinder to move, thereby adjusting the position and posture of the outer cylinder to facilitate assembly of the outer cylinder with the key strip, transports the key strip from the key strip input end to the key strip output end located inside the outer cylinder through the conveying mechanism, and then the fixing mechanism moves close to and abuts against the key strip located on the key strip output end and abuts the key strip against the inner wall of the outer cylinder. Finally, the screw output end is driven to move close to the outer cylinder through the combination part to assemble the outer cylinder and the key strip abutting against the inner wall of the outer cylinder, thereby improving the technical problem of low work efficiency in the related art that each key strip is manually installed in the outer cylinder.

[0013] In a second aspect, the embodiments of the present application provide an air inflation shaft assembly device assembly method, which is suitable for the air inflation shaft assembly device in any of the embodiments of the first aspect, and the air inflation shaft assembly device assembly method comprises the following steps.

[0014] The outer cylinder is placed on the rolling clamping mechanism, the moving mechanism drives the outer cylinder to move close to the screw output end and makes at least one outer inflation groove close to the screw output end after the rolling clamping mechanism clamps the outer cylinder, then the rolling clamping mechanism unclamps the outer cylinder and drives the outer cylinder to roll to make the distance between at least one outer locking hole and the screw output end shortest and located between the combination part and the key strip output end, and then the rolling clamping mechanism clamps the outer cylinder again.

[0015] The key strip is placed on the key strip input end, the key strip located on the key strip input end is transported to the key strip output end through the conveying mechanism to make the inner inflation groove located directly below the outer inflation groove and the inner locking hole located directly below the outer locking hole, then the fixing mechanism moves close to and abuts against the key strip located on the key strip output end to make the key strip abut against the outer cylinder and make the inner inflation groove and the outer inflation groove communicate and the inner locking hole and the outer locking hole communicate.

[0016] The combination part drives the screw output end to be close to the outer cylinder to assemble the outer cylinder and the key bar which is in contact with the outer cylinder through the inner lock hole and the outer lock hole which are communicated, then the rolling clamping mechanism releases the outer cylinder and drives the outer cylinder to roll to make the distance between the other outer lock hole which is not assembled with the key bar in the circumferential direction of the outer cylinder and the screw output end shortest, and between the combination part and the key bar output end, and so on until all the outer lock holes in the same circumferential direction of the outer cylinder are assembled with the key bar, the moving mechanism drives the rolling clamping mechanism to move to make the distance between the outer lock hole which is not assembled with the key bar in the other circumferential direction of the outer cylinder fixed on the rolling clamping mechanism and the screw output end shortest, and so on until all the outer lock holes in all the circumferential directions of the outer cylinder are assembled with the key bar, the moving mechanism drives the rolling clamping mechanism to be away from the combination part, the rolling clamping mechanism releases the outer cylinder to facilitate taking out the outer cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A structure schematic diagram of the air inflation shaft assembly device provided by the embodiments of the present application is shown in the figure.

[0019] Figure 2 A structure schematic diagram of the moving mechanism provided by the embodiments of the present application is shown in the figure.

[0020] Figure 3 A structure schematic diagram of the rolling clamping mechanism after removing part of the rolling containing member provided by the embodiments of the present application is shown in the figure.

[0021] Figure 4 A structure schematic diagram of the key bar fixing part provided by the embodiments of the present application is shown in the figure.

[0022] Figure 5 A structure schematic diagram of the key bar provided by the embodiments of the present application is shown in the figure. Figure 4 An enlarged view of A in the figure.

[0023] Figure 6 A structure schematic diagram of the key bar provided by the embodiments of the present application is shown in the figure.

[0024] In the figure, various reference signs are as follows:

[0025] 100, air inflation shaft assembly device; 10, support part; 20, outer cylinder fixing part; 21, moving mechanism; 211, moving driving mechanism; 2111, transmission containing piece; 2112, transmission piece; 2113, moving driving piece; 2114, transmission connecting piece; 212, guiding support piece; 213, moving bearing piece; 22, rolling clamping mechanism; 221, rolling containing piece; 222, rolling piece; 223, rolling driving piece; 224, clamping piece; 30, key strip fixing part; 31, conveying mechanism; 311, height adjusting mechanism; 3111, first support piece; 3112, second support piece; 3113, locking piece; 312, key strip conveying part; 3121, conveying rod; 3122, driving wheel; 3123, driven wheel; 3124, conveying driving piece; 3125, conveying belt; 32, fixing mechanism; 321, fixing driving piece; 322, ejection piece; 323, blocking piece; 33, key strip input end; 34, key strip output end; 40, combination part; 50, key strip; 51, abutting piece; 52, elastic piece; 53, movable piece; 54, inflation piece. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, and not to limit the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The description and the drawings of this application, and the above-described accompanying drawings, the terms "comprising" and "having" and any variations thereof in the specification are intended to cover not only the inclusive but also the exclusive.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second", etc. are used only to describe purposes and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0031] In the present application, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships; for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents a "or" relationship between the front and rear associated objects.

[0032] It should be noted that in the present application, the words "in some embodiments", "exemplarily", "for example" and the like are used to represent as an example, illustration or description. Any embodiment or design scheme described as "in some embodiments", "exemplarily", "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "in some embodiments", "exemplarily", "for example" and the like is intended to present the relevant concept in a specific way, meaning that the specific features, structures or properties described in conjunction with the embodiments can be included in at least one embodiment of the present application. The occurrence of the above words at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0033] The air inflation shaft assembly device is a mechanical system for installing and fixing the air inflation shaft, a key component commonly used in coiled material processing equipment. In the assembly of the key bar type air inflation shaft, the existing air inflation shaft assembly device usually directly inserts the whole shaft core (including the key bar and the air bladder) into the outer cylinder (a hollow cylinder directly contacting the coiled material). However, this assembly method requires the whole shaft core to be replaced when a single key bar or air bladder is damaged, resulting in high cost. Therefore, we can separately install each key bar in the outer cylinder, and then insert the air bladder, so that each key bar and the air bladder are independent of each other. In this way, when the key bar wears out or the air bladder is damaged, only the individual replacement is required, without the need for whole replacement, thereby reducing the cost.

[0034] However, due to the different specifications of each air inflation shaft, the key bars are usually installed in the outer cylinder by manual work, which is low in work efficiency.

[0035] Based on this, in order to improve the problem of low work efficiency of manually installing each key bar in the outer cylinder in the related art, the embodiments of the present application provide the following solutions.

[0036] Referring to Figure 1 The embodiment of the present application provides a gas expansion shaft assembling device 100, the gas expansion shaft assembling device 100 comprises a support part 10, an outer cylinder fixing part 20, a key strip fixing part 30 and a combination part 40, and wherein:

[0037] The outer cylinder fixing part 20 is arranged on the support part 10, the fixing part comprises a moving mechanism 21 and a rolling clamping mechanism 22, the moving mechanism 21 is arranged on the support part 10, and the rolling clamping mechanism 22 is arranged on the moving mechanism 21, and the rolling clamping mechanism 22 is used for rolling or clamping the outer cylinder.

[0038] The key strip fixing part 30 is arranged on the support part 10, the key strip fixing part 30 comprises a conveying mechanism 31 and a fixing mechanism 32, the conveying mechanism 31 is arranged on the support part 10, the fixing mechanism 32 is arranged on a side of the conveying mechanism 31 away from the outer cylinder fixing part 20, the conveying mechanism 31 is used for conveying the key strip 50 from a key strip input end 33 to a key strip output end 34, and the fixing mechanism 32 is used for being close to and abutting the key strip 50 located on the key strip output end 34 so that the key strip 50 is abutted with the outer cylinder.

[0039] The combination part 40 is arranged on the support part 10, the combination part 40 has a screw output end, and the combination part 40 is used for driving the screw output end to be close to the outer cylinder so as to assemble the outer cylinder and the key strip 50 abutted with the outer cylinder.

[0040] The moving mechanism 21 is used for driving the rolling clamping mechanism 22 to be close to or away from the screw output end, the key strip output end 34 is located directly below the screw output end, directly above the fixing mechanism 32 and between the outer cylinder and the fixing mechanism 32.

[0041] It can be understood that the support part 10 is a basic structure capable of playing a supporting role, for example, the support part 10 can be a steel frame, an aluminum profile support, etc., but is not limited thereto. The outer cylinder fixing part 20 is a device capable of fixing and moving the outer cylinder, for example, the outer cylinder fixing part 20 can be a four-jaw chuck, a rotary workbench, etc., but is not limited thereto. The moving mechanism 21 is a device capable of driving the rolling clamping mechanism 22 to approach or move away from the screw output end, for example, the moving mechanism 21 can be a double-acting cylinder, a lead screw driving mechanism (consisting of a lead screw, a nut seat, a servo motor and a guide rail), etc., but is not limited thereto. The rolling clamping mechanism 22 is a device capable of clamping or rolling the outer cylinder, for example, the rolling clamping mechanism 22 can include a rotating table (including a driving pulley, a driven pulley and a transmission belt, the driving pulley is driven to rotate by a servo motor, the transmission belt surrounds the outer periphery of the outer cylinder, and the outer cylinder is rolled by friction, etc., but is not limited thereto) and a clamping part (two-finger clamping jaw, three-finger clamping jaw, etc.), etc., but is not limited thereto, the rotating table can be provided on the power output shaft of the moving mechanism 21, and the clamping part can be provided on the rotating table. The key strip fixing part 30 is a device capable of conveying the key strip 50 from the key strip input end 33 to the key strip output end 34 and making the key strip 50 fit the inner wall of the outer cylinder, for example, the key strip fixing part 30 can include a fixed rod (aluminum rod, copper rod, etc.), a first driving part (single-acting cylinder, double-acting cylinder, etc.) and a second driving part (single-acting cylinder, double-acting cylinder, etc.), wherein the fixed rod can be provided on the support part 10, the end of the fixed rod away from the outer cylinder fixing part 20 has the key strip input end 33, the end of the fixed rod close to the outer cylinder fixing part 20 has the key strip output end 34, the first driving part can be provided on the end of the fixed rod away from the fixed part, and the second driving part can be provided on the end of the fixed rod close to the fixed part, the first driving part is used to push the key strip 50 from the key strip input end 33 along the fixed rod to the key strip output end 34, and the second driving part is used to push the key strip 50 located on the key strip output end 34 to approach and abut against the inner wall of the outer cylinder in the direction opposite to the gravity direction to make the key strip 50 fit the inner wall of the outer cylinder. The conveying mechanism 31 is a device capable of conveying the key strip 50 from the key strip input end 33 to the key strip output end 34, for example, the conveying mechanism 31 can be a conveyor belt type conveying line, a driving cylinder, etc., but is not limited thereto. The fixing mechanism 32 is a device capable of abutting the key strip 50 against the outer cylinder, for example, the fixing mechanism 32 can be a double-acting cylinder, a thin cylinder, etc., but is not limited thereto.The combination part 40 is a device with a screw output end and capable of driving the screw output end to approach the outer cylinder to assemble the outer cylinder and the key bar 50 in contact with the outer cylinder. For example, the combination part 40 can include a translation driving member (double-acting cylinder, thin cylinder, etc.), a pressing driving member (double-acting cylinder, thin cylinder, etc.), and an assembly part (electric screwdriver, visual positioning screwdriver, etc.). The translation driving member can be arranged on the support part 10. The pressing driving member can be arranged on the power output shaft of the translation driving member and above the key bar fixing part 30. The assembly part can be arranged on the power output shaft of the pressing driving member and has a screw output end. The translation driving member is used to drive the assembly part to approach or move away from the rolling clamping mechanism 22 in the horizontal direction. The pressing driving member is used to drive the assembly part to approach and contact the outer wall of the outer cylinder in the direction of gravity. The assembly part is used to output a screw through the screw output end and assemble the outer cylinder and the key bar 50 by rotating the screw.

[0042] As can be seen from the above, the air expansion shaft assembly device 100 provided by the embodiment of the application provides support for other components through the support part 10, fixes the position of the outer cylinder through the rolling clamping mechanism 22 to prevent the outer cylinder from moving during assembly with the key bar 50; drives the outer cylinder to roll through the rolling clamping mechanism 22 and drives the rolling clamping mechanism 22 to move through the moving mechanism 21 to drive the outer cylinder to move, thereby adjusting the position and posture of the outer cylinder to facilitate assembly with the key bar 50; transports the key bar 50 from the key bar input end 33 to the key bar output end 34 located inside the outer cylinder through the conveying mechanism 31, and then approaches and contacts the key bar 50 located on the key bar output end 34 through the fixing mechanism 32, and contacts the key bar 50 with the inner wall of the outer cylinder; finally, drives the screw output end to approach the outer cylinder through the combination part 40 to assemble the outer cylinder and the key bar 50 in contact with the inner wall of the outer cylinder, thereby improving the technical problem of low work efficiency in the related art that each key bar 50 is manually installed in the outer cylinder.

[0043] In some embodiments, referring to Figure 1 and Figure 2 , the moving mechanism 21 includes a moving driving mechanism 211, a guide support 212, and a moving carrier 213.

[0044] The moving driving mechanism 211 is arranged on the support part 10. The guide support 212 is arranged on the support part 10. The moving carrier 213 is arranged on the moving driving mechanism 211, and the side of the moving carrier 213 away from the moving driving mechanism 211 has a moving groove matched with the guide support 212. The rolling clamping mechanism 22 is arranged on the moving carrier 213, and the moving driving mechanism 211 can drive the moving carrier 213 to approach or move away from the screw output end along the guide support 212.

[0045] It can be understood that the movement driving mechanism 211 is a driving device capable of driving the movement carrier 213 to move close to or away from the screw output end along the guide support 212, for example, the movement driving mechanism 211 can be a double-acting cylinder, a screw driving mechanism, etc., but not limited thereto. The guide support 212 is a strip-shaped plate structure, which forms a concave-convex fit with the movement groove of the movement carrier 213, provides guidance and support for the movement of the movement carrier 213, and ensures smooth movement without shaking, for example, the guide support 212 can be a linear guide rail, a dovetail groove guide rail, etc., but not limited thereto.

[0046] In this way, when the outer cylinder is placed on the rolling clamping mechanism 22, the movement driving mechanism 211 drives the rolling clamping mechanism 22 to move close to the screw output end along the guide support 212, so as to drive the outer cylinder to move close to the screw output end, and make the outer cylinder part located between the screw output end and the key strip output end 34, so as to facilitate the subsequent assembly of the key strip 50 and the outer cylinder.

[0047] In some embodiments, referring to Figure 1 and Figure 2 , the movement driving mechanism 211 includes a transmission containing member 2111, a transmission member 2112, a movement driving member 2113, and a transmission connecting member 2114.

[0048] The transmission containing member 2111 is arranged on the support part 10, and the transmission containing member 2111 has a transmission containing space. The transmission containing member 2111 is provided with transmission connecting grooves on both sides of the contact surface of the transmission containing member 2111 and the support part 10, respectively, which are in communication with the transmission containing space. The transmission member 2112 is located in the transmission containing space, and both ends of the transmission member 2112 are rotatably arranged on the transmission containing member 2111, and the length direction of the transmission member 2112 is parallel to the length direction of the transmission connecting groove. The movement driving member 2113 is arranged on the transmission containing member 2111, and the power output shaft of the movement driving member 2113 is connected with the transmission member 2112, and the movement driving member 2113 is used for driving the transmission member 2112 to rotate. The transmission connecting member 2114 is partially located in the transmission containing space, and is movably arranged on the transmission member 2112. The transmission connecting member 2114 has a transmission hole, which is in threaded connection with the transmission member 2112. The transmission connecting member 2114 is connected with the movement carrier 213 through the transmission connecting groove.

[0049] Among them, the movement driving member 2113 is used for driving the transmission member 2112 to rotate, and further driving the transmission connecting member 2114 in threaded connection with the transmission member 2112 to move close to or away from the screw output end along the transmission member 2112.

[0050] It can be understood that the transmission containing member 2111 is a hollow cuboid for containing the transmission member 2112 and the transmission connecting member 2114, for example, the transmission containing member 2111 can be an aluminum shell structure, an integrated bracket, etc., but is not limited thereto. The transmission member 2112 is a rod-shaped structure with a threaded surface, and the length direction of the transmission member 2112 can be parallel to the length direction of the guide support 212, for example, the transmission member 2112 can be a ball screw, a trapezoidal screw, etc., but is not limited thereto. The movement driving member 2113 is a driving device capable of driving the transmission member 2112 to rotate, which can be arranged at one end of the transmission containing member 2111 away from the key strip fixing portion 30, for example, the movement driving member 2113 can be a servo motor, a stepper motor, etc., but is not limited thereto. The transmission connecting member 2114 is a connecting member of the transmission member 2112 and the movement bearing member 213, part of which is located in the transmission containing space and cooperates with the transmission member 2112 through threads, and the other part extends out through the transmission connecting slot and is fixedly connected with the movement bearing member 213, for example, the transmission connecting member 2114 can be a screw nut seat, a rack connecting plate, etc., but is not limited thereto.

[0051] In this way, when it is needed to drive the outer cylinder placed on the rolling clamping mechanism 22 to be close to the screw output end, the movement driving member 2113 drives the transmission member 2112 to rotate, the transmission connecting member 2114 moves linearly along the axis direction of the transmission member 2112 to be close to the screw output end due to the cooperation of the internal threads and the transmission member 2112, the transmission connecting member 2114 drives the movement bearing member 213 to be close to the screw output end, and further drives the rolling clamping mechanism 22 arranged on the movement bearing member 213 to be close to the screw output end, so as to drive the outer cylinder placed on the rolling clamping mechanism 22 to be close to the screw output end. When it is needed to drive the outer cylinder placed on the rolling clamping mechanism 22 to be away from the screw output end, the movement driving member 2113 drives the transmission member 2112 to rotate in the other direction. By adjusting the distance between the movement bearing member 213 and the screw output end, the relative position between the outer cylinder placed on the rolling clamping mechanism 22 and the screw output end can be adjusted, so that each outer locking hole in different circumferential directions of the outer cylinder can be close to the screw output end, and further the key strip 50 can be assembled in different circumferential directions of the outer cylinder.

[0052] In some embodiments, referring to Figure 1 and Figure 3 , the rolling clamping mechanism 22 includes a rolling containing member 221, at least two rolling members 222, a rolling driving member 223, and at least two clamping members 224.

[0053] The rolling accommodating member 221 is arranged on the moving carrier 213, and has a rolling accommodating space. Two rolling grooves are arranged on the side of the rolling accommodating member 221 away from the moving carrier 213, and communicate with the rolling accommodating space. The rolling members 222 are partially arranged in the rolling accommodating space and partially arranged outside the rolling accommodating space through the rolling grooves. The two ends of the rolling members 222 are rotationally connected with the rolling accommodating member 221, and the rolling members 222 are transmissionally connected through the belts. The rolling driving member 223 is arranged in the rolling accommodating space, and the power output shaft of the rolling driving member 223 is transmissionally connected with at least one rolling member 222. The rolling driving member 223 is used for driving the rolling members 222 to rotate. The clamping members 224 are arranged on the rolling accommodating member 221 and are respectively arranged on the two sides of the rolling accommodating member 221.

[0054] The rolling driving member 223 is used for driving the rolling members 222 to rotate, so that the outer cylinders which are simultaneously contacted with the two rolling members 222 and are located between the two rolling members 222 rotate. The two clamping members 224 are used for simultaneously approaching and abutting against the outer cylinders which are located between the two rolling members 222, so as to clamp the outer cylinders.

[0055] It can be understood that the rolling accommodating member 221 is the main frame of the rolling clamping mechanism 22, is fixed on the moving carrier 213, and internally forms a rolling accommodating space, which is used for mounting the rolling members 222 and the rolling driving member 223, and partially exposes the rolling members 222 through the rolling grooves to contact the outer cylinders. For example, the rolling accommodating member 221 can be an aluminum shell, a copper shell, etc., but is not limited thereto. The rolling member 222 is a cylindrical structure which is transmissionally rotated through a belt, is used for supporting the outer cylinders and rotating the outer cylinders along the central axes of the outer cylinders through friction, the outer cylinders can be placed between the two rolling members 222 and are simultaneously contacted with at least two rolling members 222, the distance and height between the outer cylinders can be adjusted by a user before work according to the diameters of the outer cylinders, so that the outer cylinders can be simultaneously contacted with at least two rolling members 222, the transmission connection between the outer cylinders can be gear transmission connection, belt transmission connection, etc., but is not limited thereto, the surface of the rolling member 222 can be knurled or coated with a rubber layer to increase the friction, for example, the rolling member 222 can be a rubber wheel, a roller group, etc., but is not limited thereto. The rolling driving member 223 is a driving device which can drive at least one rolling member 222 to rotate, so as to drive the outer cylinders to rotate, for example, the rolling driving member 223 can be a servo motor, a stepping motor, etc., but is not limited thereto. The clamping member 224 is a device which can be symmetrically arranged on the two sides of the rolling accommodating member 221, is used for simultaneously approaching and abutting against the outer cylinders to clamp and fix the outer cylinders, and prevents the outer cylinders from shaking during assembly. The height of the clamping member 224 is adjusted by a user according to the diameters of the outer cylinders. The rolling member 222 can be located between at least two clamping members 224, for example, the clamping member 224 can be a pneumatic clamping jaw, an electric clamping cylinder, etc., but is not limited thereto.

[0056] When the outer cylinder needs to be assembled with the key bar 50, the outer cylinder is placed between the at least two rolling members 222, so that the outer cylinder is in contact with the two rolling members 222 at the same time, then the clamping member 224 approaches and touches the outer periphery of the outer cylinder to fix the outer cylinder, then the driving mechanism 211 drives the movement of the movement carrier 213 to drive the movement of the rolling accommodating member 221, so that the outer cylinder approaches the screw output end. When the outer cylinder moves and the screw output end approaches the outer cylinder, the clamping member 224 can simultaneously approach and touch the outer periphery of the outer cylinder to fix the outer cylinder, so as to prevent the outer cylinder from deviating during movement and assembly. When the outer cylinder needs to be rotated to adjust the position, the clamping member 224 does not contact the outer cylinder, and the rolling driving member 223 drives the rolling member 222 to rotate to drive the outer cylinder to rotate. By driving the rolling member 222 to rotate by the rolling driving member 223 to drive the outer cylinder to rotate, so that each outer locking hole in the same circumferential direction of the outer cylinder can approach the screw output end, and then the key bar 50 can be assembled at different positions in the same circumferential direction of the outer cylinder.

[0057] In some embodiments, referring to Figure 1 and Figure 4 , the conveying mechanism 31 comprises a height adjusting mechanism 311 and a key bar conveying part 312.

[0058] The height adjusting mechanism 311 is arranged on the support part 10, and the height adjusting mechanism 311 can adjust its own height. The key bar conveying part 312 is arranged on the height adjusting mechanism 311, and the key bar conveying part 312 has a key bar output end 34, and the key bar conveying part 312 is used to move the key bar 50 from the key bar input end 33 to the key bar output end 34.

[0059] The height adjusting mechanism 311 is arranged on the support part 10, and the height adjusting mechanism 311 can adjust its own height. The key bar conveying part 312 is arranged on the height adjusting mechanism 311, and the key bar conveying part 312 has a key bar output end 34, and the key bar conveying part 312 is used to move the key bar 50 from the key bar input end 33 to the key bar output end 34.

[0060] It can be understood that the height adjusting mechanism 311 is a device that can drive the key bar conveying part 312 to approach or move away from the support part 10 by adjusting its own height, and the height adjusting mechanism 311 can be arranged on the side of the support part 10 away from the outer cylinder fixing part 20. For example, the height adjusting mechanism 311 can be a screw rod lifting machine assembly, a pneumatic lifting cylinder, etc., but is not limited thereto. The key bar conveying part 312 is a device that can convey the key bar 50 from the key bar input end 33 to the key bar output end 34, and the height of the key bar output end 34 is dynamically adjusted with the height of the height adjusting mechanism 311. For example, the key bar conveying part 312 can be a linear feeder, a conveyor belt type conveying line, etc., but is not limited thereto.

[0061] In this way, before the outer cylinder is assembled with the key bar 50, the user can adjust the height of the height adjustment mechanism 311 to change the height of the key bar output end 34, so that the key bar output end 34 is as close as possible to the screw output end while ensuring that the key bar 50 does not come into contact with the outer cylinder during the movement from the input end to the key bar output end 34, thereby reducing the displacement distance of the key bar 50 when the outer cylinder is assembled with the key bar 50 to ensure the accuracy and stability of the assembly.

[0062] In some embodiments, referring to Figure 1 and Figure 4 , the height adjustment mechanism 311 includes two first support pieces 3111, a second support piece 3112, and a plurality of locking pieces 3113.

[0063] The two first support pieces 3111 are respectively arranged on the support part 10, and a plurality of support grooves are formed on the first support piece 3111 in a direction perpendicular to the contact surface of the support part 10 and the first support piece 3111. The second support piece 3112 is movably arranged on the first support piece 3111 along the support grooves and located between the two first support pieces 3111, and a plurality of support holes are formed on the second support piece 3112, each corresponding to each support groove. The plurality of locking pieces 3113 fix the first support piece 3111 and the second support piece 3112 through the support grooves and the support holes.

[0064] It can be understood that the first support piece 3111 can be an L-shaped bracket, a columnar structure, etc., but is not limited thereto. The second support piece 3112 spans between the two first support pieces 3111 and adjusts the height position through the support holes corresponding to the support grooves, and the top surface thereof is used to mount the key bar conveying part 312. For example, the second support piece 3112 can be a beam structure, an adjustable connecting plate, etc., but is not limited thereto. The locking piece 3113 is a fixed connecting piece of the first support piece 3111 and the second support piece 3112, which locks the second support piece 3112 at the target height position and fixes the two first support pieces 3111 by passing through the support grooves and the support holes. For example, the locking piece 3113 can include a bolt and a nut, the bolt passes through the support grooves and the support holes and is locked with the nut, so that the second support piece 3112 is fixed with the two first support pieces 3111.

[0065] In some embodiments, referring to Figure 4 and Figure 5 , two matching grooves are formed on the key bar 50 in the direction of movement of the key bar 50 from the key bar input end 33 to the key bar output end 34, and the key bar conveying part 312 includes a conveying rod 3121, a driving wheel 3122, a driven wheel 3123, a conveying drive piece 3124, and two conveying belts 3125.

[0066] The conveying rod 3121 is arranged on the height adjusting mechanism 311, and a top-out groove is arranged at the end of the conveying rod 3121 away from the height adjusting mechanism 311. The driving wheel 3122 is rotatably arranged on the side of the conveying rod 3121 close to the height adjusting mechanism 311. The driven wheel 3123 is rotatably arranged on the side of the conveying rod 3121 away from the height adjusting mechanism 311 and located in the top-out groove. The conveying driving member 3124 is arranged on the conveying rod 3121, and the power output shaft of the conveying driving member 3124 is connected with the driving wheel 3122. The driving wheel 3122 and the driven wheel 3123 are connected through two conveying belts 3125, and the two conveying belts 3125 have key strip input ends 33 at the ends close to the driving wheel 3122 and have key strip output ends 34 at the ends close to the driven wheel 3123.

[0067] The two matching grooves are matched with the two conveying belts 3125 respectively, the conveying belts 3125 can be partially located in the matching grooves, the conveying driving member 3124 is used for driving the driving wheel 3122 to rotate, thereby driving the driven wheel 3123 connected with the driving wheel 3122 through the conveying belts 3125 to rotate, so that the key strip 50 placed on the conveying belts 3125 and matched with the conveying belts 3125 through the matching grooves is moved from the key strip input end 33 to the key strip output end 34. The fixing mechanism 32 is arranged on the conveying rod 3121 and located in the top-out groove and between the driving wheel 3122 and the driven wheel 3123.

[0068] It can be understood that the conveying rod 3121 is a rod structure, for example, the conveying rod 3121 can be an aluminum alloy rod, a steel rod, etc., but is not limited thereto. The cross-sectional shape of the conveying rod 3121 can be rectangular, circular, etc., but is not limited thereto. The driving wheel 3122 is a wheel, a plurality of anti-skid grooves can be formed on the contact surface of the driving wheel 3122 along the circumferential direction of the driving wheel 3122 to prevent the conveying belt 3125 from deviating, for example, the driving wheel 3122 can be a rubber wheel, a plastic wheel, etc., but is not limited thereto. The driven wheel 3123 is a wheel, a plurality of anti-skid grooves can be formed on the contact surface of the driven wheel 3123 along the circumferential direction of the driven wheel 3123 to prevent the conveying belt 3125 from deviating, the rotation axis of the driven wheel 3123 is parallel to the rotation axis of the driving wheel 3122, for example, the driven wheel 3123 can be a rubber wheel, a plastic wheel, etc., but is not limited thereto. The conveying drive 3124 is a driving device capable of driving the driving wheel 3122 to rotate, for example, the conveying drive 3124 can be a servo motor, a stepper motor, etc., but is not limited thereto. The conveying belt 3125 is arranged in pairs and simultaneously connects the driving wheel 3122 and the driven wheel 3123, and realizes stable conveying of the key bar 50 by meshing with the matching grooves on the key bar 50 respectively. The inner side of the conveying belt 3125 can be provided with a protrusion or a toothed structure corresponding to the matching grooves, so that the conveying belt 3125 is embedded in the matching grooves on both sides of the key bar 50, preventing the key bar 50 from deviating laterally during conveying. For example, the conveying belt 3125 can be a rubber belt, a steel wire belt, etc., but is not limited thereto. The distance between the two conveying belts 3125 can be adjusted manually to ensure that the two conveying belts 3125 can mesh with the two matching grooves on the key bar 50 of different specifications.

[0069] In this way, when it is necessary to convey the key bar 50 to the key bar output end 34, the key bar 50 can be placed on the key bar input end 33 formed by the two conveying belts 3125 in a manual or automatic feeding manner, and the two matching grooves are meshed with the two conveying belts 3125 respectively (the bottom surface of the matching groove is in contact with the surface of the conveying belt 3125). Then the conveying drive 3124 drives the driving wheel 3122 to rotate, thereby driving the conveying belt 3125 and the driven wheel 3123 to rotate, and further driving the key bar 50 to move towards the key bar output end 34. When the key bar 50 moves to the key bar output end 34 (the way to confirm whether the key bar 50 moves to the key bar output end 34 can be to judge by a sensor arranged in the ejection groove and in communication connection with the conveying drive 3124, or by a camera arranged on the conveying rod 3121 and in communication connection with the conveying drive 3124 to judge by image processing, etc., but is not limited thereto), the conveying drive 3124 stops driving the driving wheel 3122 to rotate so that the key bar 50 stays at the key bar output end 34.

[0070] In some embodiments, referring to Figure 5The adjusting groove is arranged on one side of the conveying rod 3121 close to the driven wheel 3123, and the fixing mechanism 32 comprises a fixing driving member 321, an ejection member 322 and a blocking member 323.

[0071] The fixing driving member 321 is arranged on the conveying rod 3121 away from the driven wheel 3123 in the ejection groove. The ejection member 322 is arranged on the power output shaft of the fixing driving member 321, the key strip output end 34 is located directly above the ejection member 322, and the ejection member 322 is used to abut against the key strip 50 from between or on both sides of the two conveying belts 3125. The blocking member 323 is arranged in the ejection groove between the driven wheel 3123 and the fixing driving member 321, and is movably arranged on the conveying rod 3121 along the adjusting groove. The blocking member 323 is used to abut against the key strip 50 from between or on both sides of the two conveying belts 3125 to block the key strip 50 from contacting the driven wheel 3123.

[0072] The fixing driving member 321 is used to drive the ejection member 322 to approach the key strip output end 34 to abut against the key strip 50 on the key strip output end 34 with the outer cylinder.

[0073] It can be understood that the fixed driving member 321 is a driving device capable of driving the ejection member 322 to move, and the power output shaft of the fixed driving member 321 does not contact the conveying belt 3125 during the driving of the ejection member 322 to move. For example, the fixed driving member 321 can be a pneumatic cylinder, an electric push rod, etc., but is not limited thereto. The ejection member 322 is a device capable of pushing the key bar 50 upward (in the opposite direction of the gravity direction) to make the key bar 50 tightly fit the inner wall of the outer cylinder. For example, when the ejection member 322 is in the form of pushing the key bar 50 from between the two conveying belts 3125, the ejection member 322 can be in the form of a rectangular block structure (the width can be 1 mm smaller than the distance between the two conveying belts 3125, so that the ejection member 322 does not contact the conveying belt 3125 during the movement). When the ejection member 322 is in the form of pushing the key bar 50 from both sides of the two conveying belts 3125, the ejection member 322 can include a bottom plate (aluminum plate, plastic plate, etc.) and two side plates (aluminum plate, plastic plate, etc.). The bottom plate can be arranged on the power output end of the fixed driving member 321, and the two side plates can be arranged vertically on the bottom plate and located at both ends of the bottom plate, respectively. The distance between the two side plates is greater than the distance between the two conveying belts 3125, so that the side plates do not contact the conveying belt 3125 during the movement of the bottom plate driven by the fixed driving member 321 to drive the side plates to push the key bar 50. During the process in which the fixed driving member 321 drives the ejection member 322 to approach the key bar output end 34 to make the key bar 50 located on the key bar output end 34 contact the outer cylinder, the moving distance of the ejection member 322 is less than the vertical distance between the ejection member 322 and the conveying belt 3125 along the gravity direction (when the key bar 50 contacts the outer cylinder, the ejection member 322 does not contact the conveying belt 3125). The blocking member 323 is a device capable of adjusting the position by moving along the adjusting groove to block the key bar 50 from continuing to move and contacting the driven wheel 3123, and assisting in positioning the key bar 50. The blocking member 323 does not contact the conveying belt 3125. For example, the blocking member 323 can include a T-shaped slider (matching the cross section of the adjusting groove), a side-mounted adjusting screw, and the blocking member 323 can be moved forward and backward along the adjusting groove by rotating the adjusting screw, so as to be suitable for positioning the end of the key bar 50 of different lengths. When the key bar 50 contacts the blocking member 323 (the key bar 50 is located on the key bar output end 34), the outer lock hole and the inner lock hole are coaxial.

[0074] In this way, when it is necessary to make the key bar 50 located on the key bar output end 34 contact the inner wall of the outer cylinder, the driving wheel 3122 stops rotating to make the key bar 50 located on the key bar output end 34 stable, and then the fixed driving member 321 drives the ejection member 322 to approach the key bar output end 34 to lift the key bar 50 located on the key bar output end 34, and continuously drive the key bar 50 to approach the inner wall of the outer cylinder until the key bar 50 contacts the inner wall of the outer cylinder, the inner lock hole communicates with the outer lock hole, and the inner expansion groove and the outer expansion groove communicate with each other.

[0075] In some embodiments, referring to Figure 6 , the outer cylinder is provided with a plurality of outer expansion grooves and a plurality of outer locking holes, each outer expansion groove corresponds to at least one outer locking hole, and the at least one outer locking hole is located beside the outer expansion groove. The key strip 50 includes a resisting member 51, at least one elastic member 52, a movable member 53, and an expansion member 54.

[0076] The resisting member 51 is provided with an inner expansion groove and at least one inner locking hole, the inner expansion groove corresponds to the outer expansion groove, and the inner locking hole corresponds to the outer locking hole. The two ends of the elastic member 52 are respectively connected to the resisting member 51 and the movable member 53. The expansion member 54 is movably arranged on the side of the movable member 53 close to the upper resisting member 51 along the depth direction of the inner expansion groove.

[0077] The side of the resisting member 51 close to the movable member 53 is provided with two matching grooves, and the expansion member 54 is used to move to the outside of the outer cylinder through the inner expansion groove and the outer expansion groove when the resisting member 51 and the outer cylinder are in contact to clamp the material. The combination part 40 is used to assemble the outer cylinder and the resisting member 51 through the outer locking hole and the inner locking hole when the resisting member 51 and the outer cylinder are in contact and the inner locking hole and the corresponding outer locking hole are in communication, and the fixed driving member 321 is used to drive the ejecting member 322 to be close to the key strip output end 34 to make the resisting member 51 on the key strip output end 34 in contact with the outer cylinder.

[0078] It can be understood that the plurality of outer expansion grooves are uniformly distributed along the circumferential direction of the outer cylinder, which is used to enable the expansion member 54 to move to the outside of the outer cylinder through the outer expansion groove and be in contact with the material to clamp the material. The outer locking hole is correspondingly arranged with the outer expansion groove, and the outer locking hole is used to be aligned with the inner locking hole, and then the connecting member such as a screw output by the screw output end is used to realize the fixed assembly of the outer cylinder and the key strip 50. The resisting member 51 can be an aluminum plate, a plastic plate, etc., but is not limited thereto. The side of the resisting member 51 close to the screw output end can be a circular arc shape that fits the inner wall of the outer cylinder to increase the contact area of the resisting member 51 and the outer cylinder. The inner expansion groove and the outer expansion groove of the outer cylinder are matched in shape and size to ensure that the expansion member 54 can smoothly extend out. The inner locking hole and the outer locking hole are coaxially corresponding, which is used for fixing during assembly. The elastic member 52 can be a compression spring, a rubber elastic body, etc., and the two ends are respectively connected to the resisting member 51 and the movable member 53 to provide elastic buffering and restoring force. The movable member 53 is a plate-shaped structure, for example, the movable member 53 can be an aluminum plate, a plastic plate, etc., but is not limited thereto. The expansion member 54 is a wedge-shaped block or a stepped boss that can move along the depth direction of the inner expansion groove. The side of the expansion member 54 close to the screw output end can have rubber patterns to increase the friction between the expansion member 54 and the material. The expansion member 54 and the movable member 53 do not contact the conveying belt 3125 during movement. The elastic member 52 can push the movable member 53 to make the expansion member 54 not extend out of the inner expansion groove when not compressed.

[0079] Thus, when it is needed to assemble the key bar 50 with the outer cylinder, the fixing driving member 321 drives the ejecting member 322 to approach and abut against the abutting member 51 on the key bar output end 34, and drives the abutting member 51 to move away from the key bar output end 34 in the direction opposite to the gravity direction and abut against the inner wall of the outer cylinder, and makes the outer expansion groove and the inner expansion groove communicate, and makes the outer locking hole and the inner locking hole communicate. Then the combination part 40 drives the screw output end to move and approach the outer locking hole corresponding to the outer expansion groove, so that the screw output by the screw output end abuts against the outer locking hole, and the abutting member 51 and the outer cylinder are fixed by rotating the screw, so as to realize the assembly of the key bar 50 with the outer cylinder. When one key bar 50 is assembled with the outer cylinder, the fixing driving member 321 drives the ejecting member 322 to move away from the screw output end and to the lower side of the key bar output end 34, so that another key bar 50 can move to the key bar output end 34.

[0080] The embodiment of the application further provides an assembling method of the gas expansion shaft assembling device 100, which is applied to the gas expansion shaft assembling device 100 of any of the above-mentioned embodiments, and the method comprises the following steps.

[0081] The outer cylinder is placed on the rolling clamping mechanism 22, the rolling clamping mechanism 22 clamps the outer cylinder, and then the moving mechanism 21 drives the outer cylinder to approach the screw output end and make at least one outer expansion groove approach the screw output end. Then the rolling clamping mechanism 22 releases the outer cylinder and drives the outer cylinder to roll, so that the distance between at least one outer locking hole and the screw output end is the shortest, and the outer locking hole is located between the combination part 40 and the key bar output end 34. Then the rolling clamping mechanism 22 clamps the outer cylinder again.

[0082] The key bar 50 is placed on the key bar input end 33, and the key bar 50 on the key bar input end 33 is conveyed to the key bar output end 34 by the conveying mechanism 31, so that the inner expansion groove is located directly below the outer expansion groove, and the inner locking hole is located directly below the outer locking hole. Then the fixing mechanism 32 approaches and abuts against the key bar 50 on the key bar output end 34, so that the key bar 50 abuts against the outer cylinder, the inner expansion groove and the outer expansion groove communicate, and the inner locking hole and the outer locking hole communicate.

[0083] The combination part 40 drives the screw output end to approach the outer cylinder to assemble the outer cylinder and the key strip 50 in contact with the outer cylinder through the inner locking hole and the outer locking hole in communication, and then the rolling clamping mechanism 22 loosens the outer cylinder and drives the outer cylinder to roll to make the distance between the outer locking hole in the other circumferential direction of the outer cylinder not assembled with the key strip 50 and the screw output end shortest, and between the combination part 40 and the key strip output end 34, and so on, repeat the above steps until all the outer locking holes in the same circumferential direction of the outer cylinder are assembled with the key strip 50, the moving mechanism 21 drives the rolling clamping mechanism 22 to move to make the distance between the outer locking hole in the other circumferential direction of the outer cylinder not assembled with the key strip 50 and the screw output end shortest, and so on, repeat the above steps until all the outer locking holes in all the circumferential directions of the outer cylinder are assembled with the key strip 50, the moving mechanism 21 drives the rolling clamping mechanism 22 to move away from the combination part 40, the rolling clamping mechanism 22 loosens the outer cylinder to facilitate taking out the outer cylinder.

[0084] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gas expansion shaft assembly device for assembling an outer tube with a key bar, characterized by, The utility model relates to a key bar and outer tube combination device, comprising: a support part; an outer tube fixing part provided on the support part, the fixing part comprising a moving mechanism and a rolling clamping mechanism, the moving mechanism being provided on the support part, the rolling clamping mechanism being provided on the moving mechanism, and the rolling clamping mechanism being used for rolling or clamping an outer tube; a key bar fixing part provided on the support part, the key bar fixing part comprising a conveying mechanism and a fixing mechanism, the conveying mechanism being provided on the support part, the fixing mechanism being provided on a side of the conveying mechanism away from the outer tube fixing part, the conveying mechanism being used for conveying a key bar from a key bar input end to a key bar output end, and the fixing mechanism being used for abutting the key bar located on the key bar output end to make the key bar abut the outer tube; and a combination part provided on the support part, the combination part having a screw output end, the combination part being used for driving the screw output end to abut the outer tube to assemble the outer tube and the key bar abutting the outer tube; wherein the moving mechanism is used for driving the rolling clamping mechanism to abut or move away from the screw output end, the key bar output end being located directly below the screw output end and directly above the fixing mechanism and between the outer tube and the fixing mechanism; the conveying mechanism comprising a height adjusting mechanism and a key bar conveying part; two matching grooves being provided on the key bar along a moving direction of the key bar from the key bar input end to the key bar output end, the key bar conveying part comprising: a conveying rod provided on the height adjusting mechanism, an ejection groove being provided on an end of the conveying rod away from the height adjusting mechanism; a driving wheel being rotatably provided on a side of the conveying rod close to the height adjusting mechanism; a driven wheel being located in the ejection groove and rotatably provided on a side of the conveying rod away from the height adjusting mechanism; a conveying driving piece provided on the conveying rod, a power output shaft of the conveying driving piece being connected with the driving wheel; and two conveying belts, the driving wheel and the driven wheel being transmissionally connected through the two conveying belts, an end of the two conveying belts close to the driving wheel having the key bar input end, and an end of the two conveying belts close to the driven wheel having the key bar output end; wherein the two matching grooves are matched with the two conveying belts respectively, the conveying belts being capable of being partially located in the matching grooves, the conveying driving piece being used for driving the driving wheel to rotate, thereby driving the driven wheel transmissionally connected with the driving wheel through the conveying belts to rotate, so that the key bar placed on the conveying belts and matched with the conveying belts through the matching grooves is moved from the key bar input end to the key bar output end, and the fixing mechanism is provided on the conveying rod and located in the ejection groove and between the driving wheel and the driven wheel.

2. The air-bell shaft assembly device of claim 1, wherein, the moving mechanism comprising: a moving driving mechanism provided on the support part; a guide support piece provided on the support part; and A moving carrier is arranged on the moving driving mechanism, and a moving groove is arranged on the side of the moving carrier away from the moving driving mechanism, and the moving groove is matched with the guiding support; The rolling clamping mechanism is arranged on the moving carrier, and the moving driving mechanism can drive the moving carrier to move towards or away from the screw output end along the guiding support.

3. The air-bell shaft assembly device of claim 2, wherein, The moving driving mechanism comprises: A transmission accommodating member is arranged on the support part, and the transmission accommodating member has a transmission accommodating space. Two transmission connecting grooves are arranged on the two sides of the transmission accommodating member perpendicular to the contact surface between the transmission accommodating member and the support part, and the transmission connecting grooves are connected with the transmission accommodating space. A transmission member is arranged in the transmission accommodating space, and the two ends of the transmission member are rotatably arranged on the transmission accommodating member. The length direction of the transmission member is parallel to the length direction of the transmission connecting groove. A moving driving member is arranged on the transmission accommodating member, and the power output shaft of the moving driving member is connected with the transmission member. The moving driving member is used for driving the transmission member to rotate. A transmission connecting member is partially arranged in the transmission accommodating space and movably arranged on the transmission member. The transmission connecting member has a transmission hole, and the transmission hole is matched with the transmission member in a threaded manner. The transmission connecting member is connected with the moving carrier through the transmission connecting groove. The moving driving member is used for driving the transmission member to rotate, and the transmission connecting member matched with the transmission member in a threaded manner is driven to move towards or away from the screw output end along the transmission member.

4. The air-bell shaft assembly device of claim 2, wherein, The rolling clamping mechanism comprises: A rolling accommodating member is arranged on the moving carrier, and the rolling accommodating member has a rolling accommodating space. Two rolling grooves are arranged on the side of the rolling accommodating member away from the moving carrier, and the rolling grooves are connected with the rolling accommodating space. At least two rolling members are partially arranged in the rolling accommodating space and partially arranged outside the rolling accommodating space through the rolling grooves. The two ends of the rolling member are rotatably connected with the rolling accommodating member. The rolling members are connected through a belt transmission. A rolling driving member is arranged in the rolling accommodating space, and the power output shaft of the rolling driving member is transmissionally connected with at least one rolling member. The rolling driving member is used for driving the rolling member to rotate. At least two clamping members are arranged on the rolling accommodating member and arranged on the two sides of the rolling accommodating member. The rolling driving member is used for driving the rolling member to rotate, so that the outer cylinder in contact with the two rolling members and located between the two rolling members is rotated. The two clamping members are used for simultaneously approaching and abutting against the outer cylinder located between the two rolling members to clamp the outer cylinder.

5. The air-bell shaft assembly device of claim 1, wherein, The height adjusting mechanism is arranged on the support part, and the height adjusting mechanism can adjust the height thereof. The key strip conveying part is arranged on the height adjusting mechanism, and the key strip conveying part has the key strip output end. The key strip conveying part is used for moving the key strip from the key strip input end to the key strip output end. The height adjusting mechanism is used to change the height of the height adjusting mechanism to make the key strip conveying part close to or away from the support part.

6. The air-bell shaft assembly device of claim 5, wherein, The height adjusting mechanism comprises: Two first support parts are arranged on the support part respectively, and a plurality of support grooves are arranged on the first support part along the direction perpendicular to the contact surface between the support part and the first support part; A second support part is movably arranged on the first support part along the support grooves and located between the two first support parts, a plurality of support holes are arranged on the second support part, and each support hole corresponds to each support groove; and A plurality of locking parts are arranged on the first support part and the second support part through the support grooves and the support holes.

7. The air-bell shaft assembly device of claim 1, wherein The conveying rod is arranged with an adjusting groove on the side close to the driven wheel, and the fixing mechanism comprises: A fixing driving part is arranged on the conveying rod and located in the ejection groove away from the driven wheel; An ejection part is arranged on the power output shaft of the fixing driving part, the key strip output end is located directly above the ejection part, and the ejection part is used to abut against the key strip from between the two conveying belts or from the two sides of the two conveying belts; and A blocking part is arranged in the ejection groove and between the driven wheel and the fixing driving part, and is movably arranged on the conveying rod along the adjusting groove, the blocking part is used to abut against the key strip from between the two conveying belts or from the two sides of the two conveying belts to block the key strip from contacting the driven wheel; The fixing driving part is used to drive the ejection part to abut against the key strip output end to abut against the key strip on the key strip output end and the outer cylinder.

8. The air-bell shaft assembly device of claim 7, wherein, The outer cylinder is arranged with a plurality of outer expansion grooves and a plurality of outer locking holes, each outer expansion groove corresponds to at least one outer locking hole, and at least one outer locking hole is located beside the outer expansion groove, and the key strip comprises: An abutting part is arranged with an inner expansion groove and at least one inner locking hole, the inner expansion groove corresponds to the outer expansion groove, and the inner locking hole corresponds to the outer locking hole; At least one elastic part; A movable part, two ends of the elastic part are connected with the abutting part and the movable part respectively; and An expansion part is movably arranged on the side of the movable part close to the abutting part along the depth direction of the inner expansion groove; The abutting part is arranged with two matching grooves on the side close to the movable part, the expansion part is used to move to the outside of the outer cylinder through the inner expansion groove and the outer expansion groove when the abutting part and the outer cylinder abut against each other to clamp the material, the combination part is used to assemble the outer cylinder and the abutting part through the outer locking hole and the inner locking hole when the abutting part and the outer cylinder abut against each other and the inner locking hole communicates with the corresponding outer locking hole, and the fixing driving part is used to drive the ejection part to abut against the key strip output end to abut against the abutting part on the key strip output end and the outer cylinder.

9. A method of assembling a gas inflation shaft assembly, comprising: The method is applied to the air inflation shaft assembly device as claimed in any one of claims 1 to 8, and the method comprises the following steps: placing the outer cylinder on the rolling clamping mechanism, driving the outer cylinder to approach the screw output end and make at least one outer inflation slot approach the screw output end after the rolling clamping mechanism clamps the outer cylinder, then releasing the outer cylinder and driving the outer cylinder to roll to make the distance between at least one outer locking hole and the screw output end shortest and between the combination part and the key strip output end, then clamping the outer cylinder again by the rolling clamping mechanism; placing the key strip on the key strip input end, conveying the key strip on the key strip input end to the key strip output end by the conveying mechanism to make the inner inflation slot directly below the outer inflation slot and the inner locking hole directly below the outer locking hole, then approaching and abutting the key strip on the key strip output end by the fixing mechanism to make the key strip abut the outer cylinder and make the inner inflation slot and the outer inflation slot communicate and the inner locking hole and the outer locking hole communicate; driving the screw output end to approach the outer cylinder by the combination part to assemble the outer cylinder and the key strip abutting the outer cylinder through the communicated inner locking hole and outer locking hole, then releasing the outer cylinder and driving the outer cylinder to roll to make the distance between another outer locking hole in the circumferential direction of the outer cylinder and not assembled with the key strip and the screw output end shortest and between the combination part and the key strip output end, and so on until all the outer locking holes in the same circumferential direction of the outer cylinder are assembled with the key strip, then driving the rolling clamping mechanism to move by the moving mechanism to make the distance between the outer locking hole in another circumferential direction of the outer cylinder fixed on the rolling clamping mechanism and not assembled with the key strip and the screw output end shortest, and so on until all the outer locking holes in all the circumferential directions of the outer cylinder are assembled with the key strip, then driving the rolling clamping mechanism away from the combination part by the moving mechanism, releasing the outer cylinder by the rolling clamping mechanism to facilitate taking out the outer cylinder.

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