IV-type hydrogen storage bottle inner container welding seam cutting machine

Abstract

The utility model relates to the technical field of IV-type hydrogen storage cylinder inner container machining, in particular to an IV-type hydrogen storage cylinder inner container welding seam cutting machine which comprises a complete machine frame, a rotary clamping and positioning assembly, a lifting and limiting assembly, a tailstock jacking assembly and a cutting detection assembly. An end face positioning seat is arranged in the center of the connecting piece, telescopic workpiece shoulder positioning blocks which are oppositely arranged are arranged at the two ends of the connecting piece respectively, the tailstock jacking assembly comprises a rotatable positioning block which is concentric with the rotating center of the connecting piece, and the workpiece shoulder positioning blocks and the positioning block are used for clamping the two ends of an inner container respectively. The lifting limiting assembly comprises a lifting supporting arm. The cutting detection assembly comprises an electric main shaft and a line laser scanner, wherein the electric main shaft can move and feed in the horizontal direction and the vertical direction respectively and is used for installing a milling cutter, and the line laser scanner can move in the horizontal direction. According to the welding seam cutting machine, through an automatic operation mode, the production efficiency is improved, and the labor intensity of operators is relieved.

Description

Technical Field

[0001] This utility model relates to the field of processing technology for the inner liner of a Type IV hydrogen storage bottle, specifically to a cutting machine for the weld seam of the inner liner of a Type IV hydrogen storage bottle. Background Technology

[0002] The injection-molded inner liner of the Type IV hydrogen storage cylinder is a key component, and its manufacturing quality directly affects the hydrogen storage efficiency and safety. For example... Figure 5 As shown, this type of inner liner is typically formed by injection molding and welding of two parts: the end cap 8 and the body 9. During the welding process, one or two weld beads 10 are formed at the weld joint. The height of the weld beads is usually higher than other injection-molded parts of the inner liner. This not only affects the appearance quality of the inner liner, but more importantly, it hinders the subsequent carbon fiber winding work, because the uneven weld bead surface makes it difficult to ensure the uniformity and tight bonding of the carbon fiber layer.

[0003] Currently, there is a lack of specialized equipment on the market for cutting the weld seams of hydrogen storage cylinder inner liners. Most manufacturers still use simple manual roller fixtures to rotate the product manually, combined with power tools for cutting. This method has several drawbacks: First, the cutting operation is time-consuming and inefficient; second, due to the uncontrollability of manual operation, the weld seam cut edges are inconsistent, the surface is uneven, and it is difficult to ensure the uniformity of the weld seam thickness; finally, this manual operation method results in a high scrap rate, increasing production costs.

[0004] Given the above situation, it is particularly important to develop a device that can automatically and precisely cut the weld seams of the inner liner of a Type IV hydrogen storage cylinder. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a Type IV hydrogen storage cylinder inner liner weld cutting machine, which achieves automatic rotation and automatic cutting of the inner liner weld; the highly automated operation not only greatly improves production efficiency but also effectively reduces the labor intensity of operators.

[0006] The technical solution of this utility model is as follows:

[0007] A type IV hydrogen storage cylinder inner liner weld cutting machine includes a machine frame, a rotary clamping and positioning assembly, a lifting and limiting assembly, a tailstock clamping assembly, and a cutting detection assembly. The rotary clamping and positioning assembly, the lifting and limiting assembly, the tailstock clamping assembly, and the cutting detection assembly are mounted on the machine frame. The rotary clamping and positioning assembly includes a rotatable connecting member, the rotation center of which is parallel to the horizontal plane. An end face positioning seat is provided at the center of the connecting member. Retractable workpiece shoulder positioning blocks are respectively provided at both ends of the connecting member. The tailstock clamping assembly includes a rotatable positioning block concentric with the rotation center of the connecting member. The workpiece shoulder positioning block and the positioning block are used to clamp both ends of the inner liner. The lifting and limiting assembly includes a liftable support arm. The cutting detection assembly includes an electric spindle for mounting milling cutters that can move and feed in both horizontal and vertical directions, and a horizontally movable line laser scanner.

[0008] The bottom of the machine frame is equipped with height-adjustable feet.

[0009] The machine frame is fixedly equipped with a housing that covers the rotary clamping and positioning assembly, the lifting and limiting assembly, the tailstock clamping assembly, and the cutting detection assembly.

[0010] An electrical control cabinet is also fixedly installed on the machine frame, and the electrical control cabinet is located outside the machine body.

[0011] The rotary clamping and positioning assembly also includes a support, which is fixedly mounted on the machine frame. A cross roller bearing is fixedly mounted on the top of the support. One side of the rotatable part of the cross roller bearing is fixedly connected to a connector, and the other side of the rotatable part of the cross roller bearing is fixedly connected to a rotary drive device.

[0012] Two cylinders with guide rods are fixedly installed at both ends of the connector, and the two workpiece shoulder positioning blocks are fixedly connected to the telescopic rods of the cylinders with guide rods.

[0013] The rotary drive device includes a rotary drive servo motor and a large gear. The rotary drive servo motor is fixed on the support, and the large gear is fixedly connected to the other side of the rotatable part of the crossed roller bearing. The output shaft of the rotary drive servo motor is fixedly mounted with a small gear that meshes with the large gear.

[0014] A pneumatic-electric slip ring is installed on the large gear, which can rotatably output air and electrical signals to the cylinder with a guide rod.

[0015] Two sets of cam followers are installed on the support arm to support the workpiece.

[0016] Dust-proof nozzles are installed next to the online laser scanner.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model discloses a Type IV hydrogen storage cylinder inner liner weld cutting machine. The Type IV hydrogen storage cylinder inner liner weld cutting machine uses a PLC internal program to precisely control the travel position of the end mill at the front end of the electric spindle. It works closely with the servo drive system of the equipment itself to realize the automatic rotation and automatic cutting of the inner liner weld. This not only greatly improves production efficiency, but also effectively reduces the labor intensity of operators.

[0019] 2. This utility model discloses a Type IV hydrogen storage cylinder inner liner weld cutting machine. The Type IV hydrogen storage cylinder inner liner weld cutting machine uses an electric spindle-driven milling cutter for cutting, and with the cooperation of multiple servo drive mechanisms, it can ensure the stability and accuracy of the cutting process. The weld section after cutting is flat and consistent, which meets the strict requirements of subsequent carbon fiber winding work and effectively reduces the scrap rate.

[0020] 3. The present invention discloses a Type IV hydrogen storage cylinder inner liner weld cutting machine. The cutting detection component of the Type IV hydrogen storage cylinder inner liner weld cutting machine is equipped with a line laser scanner. The single-axis module driven by a servo motor performs automatic positioning and scanning, which can monitor the weld quality after cutting in real time. At the same time, the dust nozzle can effectively prevent cutting droplets from interfering with the scanning results and ensure the accuracy of the detection results.

[0021] 4. This utility model discloses a Type IV hydrogen storage cylinder inner liner weld cutting machine. Through various servo adjustment mechanisms and stroke design, the Type IV hydrogen storage cylinder inner liner weld cutting machine increases the product coverage to a diameter of 200mm-400mm and a length of 800mm-2500mm, greatly improving the product's flexible coverage; it can be applied to various sizes of Type IV hydrogen storage cylinder inner liners, reducing the cost expenditure of customers for products with different bottle body requirements. Attached Figure Description

[0022] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the front isometric three-dimensional structure of a type IV hydrogen storage cylinder inner liner weld cutting machine, excluding the electrical cabinet and equipment shell, according to an embodiment of this utility model. Figure I ;

[0025] Figure 2 This is a three-dimensional structural diagram of a type IV hydrogen storage cylinder inner liner weld cutting machine, including the electrical cabinet and the equipment shell, according to an embodiment of this utility model.

[0026] Figure 3This is a rear isometric three-dimensional structural diagram of a Type IV hydrogen storage cylinder inner liner weld cutting machine, excluding the electrical cabinet and equipment shell, according to an embodiment of the present utility model.

[0027] Figure 4 This is a schematic diagram of the front isometric three-dimensional structure of a Type IV hydrogen storage cylinder inner liner weld cutting machine, excluding the electrical cabinet and equipment shell, according to an embodiment of this utility model. Figure II ;

[0028] Figure 5 This is a schematic diagram of the inner liner of a Type IV hydrogen storage cylinder and its weld seam in the background art;

[0029] The components represented by the various reference numerals in the diagram are:

[0030] This utility model comprises: 1. a machine frame, 2. a rotating clamping and positioning assembly, 3. a lifting and limiting assembly, 4. a tailstock clamping assembly, 5. a cutting detection assembly, 6. an electrical control cabinet, 7. a machine body shell, 8. a head, 9. a cylinder body, and 10. a weld.

[0031] 2-1. Rotary drive servo motor; 2-2. Large gear; 2-3. Pneumatic slip ring; 2-4. Crossed roller bearing; 2-5. End face positioning seat; 2-6. Workpiece shoulder positioning block; 2-7. Cylinder with guide rod; 2-8. Connecting parts; 2-9. Support.

[0032] 3-1. Servo motor for lifting and limiting components; 3-2. Toothed pulley assembly; 3-3. Ball screw assembly for lifting and limiting components; 3-4. Linear guide rail assembly; 3-5. Bracket; 3-6. C-shaped guide rail assembly; 3-7. Support arm; 3-8. Cam follower.

[0033] 4-1. Tailstock clamping assembly servo motor; 4-2. Tailstock clamping assembly ball screw assembly; 4-3. Cylinder; 4-4. Sliding assembly; 4-5. Connecting block; 4-6. Positioning block; 4-7. Tailstock clamping assembly mounting plate; 4-8. Support base.

[0034] 5-1. First servo motor of the cutting detection component; 5-2. Ball screw assembly of the cutting detection component; 5-3. Sliding mounting plate; 5-4. Y-axis translation servo motor; 5-5. Mounting plate of the cutting detection component; 5-6. Y-axis feed servo motor; 5-7. X-axis feed servo motor; 5-8. Electric spindle; 5-9. Support column of the detection component; 5-10. Second servo motor of the cutting detection component; 5-11. Line laser scanner; 5-12. Dustproof nozzle. Detailed Implementation

[0035] Example

[0036] like Figures 1 to 4As shown, a Type IV hydrogen storage cylinder inner liner weld cutting machine includes a frame 1, a rotary clamping and positioning assembly 2, a lifting and limiting assembly 3, a tailstock clamping assembly 4, a cutting detection assembly 5, an electrical control cabinet 6, and a machine body shell 7. The rotary clamping and positioning assembly 2 is fixedly installed on the upper right side of the frame 1 along its length. The tailstock clamping assembly 4 and the cutting detection assembly 5 are movably installed on the upper part of the frame 1 via different sliders on linear guide rails and ball screw assemblies driven by different servo motors. They share two linear guide rails and are located on the right side of the rotary clamping and positioning assembly 2. The lifting and limiting assembly 3 is fixedly installed on the rear side of the frame 1, and the drag block of the assembly itself can be manually adjusted in the horizontal direction. The electrical control cabinet 6 is fixedly installed on the frame 1 in front of the rotary clamping and positioning assembly 2. The bottom of the frame 1 is equipped with height-adjustable feet for adjusting the level of the equipment. The machine body shell 7 is fixedly installed around the perimeter of the frame 1 to cover the internal structure.

[0037] The rotary clamping and positioning assembly 2 is also provided with a rotary drive servo motor 2-1. The rotary drive servo motor 2-1 is fixedly installed on the rear side of the vertical surface of the support 2-9 through a reducer. A cross roller bearing 2-4 is fixedly installed at the middle position above the support 2-9. A large gear 2-2 and a pneumatic slip ring 2-3 are respectively installed on the rear side of the rotatable part of the cross roller bearing 2-4. A connector 2-8 and an end face positioning seat 2-5 are installed on the front side. A set of cylinders 2-7 with guide rods and a workpiece shoulder positioning block 2-6 are respectively installed on both sides of the connector 2-8.

[0038] The lifting and limiting component 3 is also equipped with a lifting and limiting component servo motor 3-1 for driving through two sets of toothed pulley assemblies 3-2 and two sets of lifting and limiting component ball screw assemblies 3-3, and in conjunction with two sets of linear guide rail assemblies 3-4, the lifting and limiting component 3 can automatically rise and fall.

[0039] A bracket 3-5 is fixedly installed on the slider of the linear guide assembly 3-4. Two sets of C-shaped guide assemblies 3-6 are fixedly installed above the bracket 3-5. Two sets of support arms 3-7 are provided on the slider of the C-shaped guide assembly 3-6. Two sets of cam followers 3-8 are respectively installed at the ends of the two sets of support arms 3-7 to support the workpiece.

[0040] The tailstock clamping assembly 4 is also equipped with a tailstock clamping assembly servo motor 4-1 driving the tailstock clamping assembly ball screw assembly 4-2, thereby driving the tailstock clamping assembly mounting plate 4-7 below the tailstock.

[0041] A support base 4-8 is installed above the tailstock clamping assembly mounting plate 4-7. A cylinder 4-3, a sliding assembly 4-4, a connecting block 4-5, and a positioning block 4-6 are sequentially installed above the support base 4-8. A spring device is provided at the shaft end of the sliding assembly 4-4 to cope with the deviation in the length direction of the workpiece itself.

[0042] The cutting detection component 5 is further provided with a first servo motor 5-1 driving the ball screw assembly 5-2 of the cutting detection component, thereby driving the sliding mounting plate 5-3 used to install the detection device and the cutting device.

[0043] A Y-axis translation servo motor 5-4 is installed above the sliding mounting plate 5-3 to drive the ball screw and move the cutting detection component mounting plate 5-5 above.

[0044] A Y-axis feed servo motor 5-6 is installed above the cutting detection component mounting plate 5-5 to drive the synchronous belt and synchronous pulley mechanism for Y-axis feed operations.

[0045] Above the synchronous belt and synchronous pulley mechanism driven by the Y-axis feed servo motor 5-6, an X-axis feed servo motor 5-7 drives a ball screw mechanism to perform X-axis feed operations.

[0046] An electric spindle 5-8 is installed above the ball screw mechanism driven by the X-axis feed servo motor 5-7, and a milling cutter is installed at the front end for weld cutting operations.

[0047] The cutting detection component 5 is also provided with a detection component support column 5-9. A second servo motor 5-10 for the cutting detection component is installed laterally on the upper part of the detection component support column 5-9 to drive the single-axis module to move.

[0048] A wired laser scanner 5-11 and a dust nozzle 5-12 are fixedly mounted on the moving part of the single-axis module driven by the second servo motor 5-10 of the cutting detection component. Example

[0049] like Figure 1 and Figure 2 As shown, the Type IV hydrogen storage cylinder inner liner weld cutting machine includes a machine frame 1, a rotating clamping and positioning assembly 2, a lifting and limiting assembly 3, a tailstock clamping assembly 4, a cutting and detection assembly 5, an electrical control cabinet 6, and a machine body shell 7.

[0050] The rotary clamping and positioning assembly is fixedly installed on the upper right side of the machine frame along its length. The tailstock clamping assembly and cutting detection assembly are movably installed on the upper part of the machine frame via different sliders on linear guides and ball screw assemblies driven by different servo motors. Both share two linear guides and are located on the right side of the rotary clamping and positioning assembly. The lifting and limiting assembly is fixedly installed on the rear side of the machine frame, and the drag block of the assembly itself can be manually adjusted in the horizontal direction. The electrical control cabinet is fixedly installed on the machine frame in front of the rotary clamping and positioning assembly. The bottom of the machine frame is equipped with height-adjustable feet for adjusting the level of the equipment. The outer shell of the machine body is fixedly installed around the perimeter of the machine frame to cover the internal structure. Formulas for different specifications of products are set in the equipment control system. One formula corresponds to the position parameter information of each product in the equipment. Each product only needs to be set with parameters once, and the number can be directly called up when producing again.

[0051] The equipment improves product coverage to 200mm-400mm in diameter and 800-2500mm in length through various adjustment mechanisms and stroke design, greatly enhancing the flexibility of product coverage and significantly reducing the cost of equipment for customers with different bottle sizes.

[0052] like Figure 3 As shown, the rotary clamping and positioning assembly 2 includes a rotary drive servo motor 2-1, a gear 2-2, a pneumatic slip ring 2-3, a crossed roller bearing 2-4, an end face positioning seat 2-5, a workpiece shoulder positioning block 2-6, a cylinder with a guide rod 2-7, a connecting piece 2-8, and a support 2-9. The rotary drive servo motor 2-1 is fixedly installed on the rear side of the support 2-9 via a reducer, and is driven by a small gear at the front end of the reducer to a large gear connected to the rear end of the crossed roller bearing 2-4. Gear 2-2, the front side of the rotatable part of the crossed roller bearing 2-4 is equipped with a connector 2-8 and an end face positioning seat 2-5. The end face positioning seat 2-5 is used to position the inner bottle mouth at one end of the workpiece. The workpiece shoulder positioning blocks 2-6 on both sides of the connector 2-8 are positioned in the shape of the inner bottle shoulder by two sets of guide rod cylinders 2-7. The rear side of the large gear 2-2 is equipped with a pneumatic slip ring 2-3 for rotatably outputting the air and electrical signals of the guide rod cylinders 2-7.

[0053] like Figure 3As shown, the lifting and limiting assembly 3 includes a lifting and limiting assembly servo motor 3-1, a toothed pulley assembly 3-2, a lifting and limiting assembly ball screw assembly 3-3, a linear guide rail assembly 3-4, a bracket 3-5, a C-shaped guide rail assembly 3-6, a support arm 3-7, and a cam follower 3-8. The lifting and limiting assembly servo motor 3-1 is driven by two sets of toothed pulley assemblies 3-2 and two sets of lifting and limiting assembly ball screw assemblies 3-3. In conjunction with the two sets of linear guide rail assemblies 3-4, the lifting and limiting assembly 3 can automatically rise and fall to adapt to the lifting and limiting of inner liner of different diameters. A bracket 3-5 is fixedly installed on the slider of the linear guide rail assembly 3-4, and two sets of C-shaped guide rail assemblies 3-6 are fixedly installed on it. Two sets of support arms 3-7 are provided on the slider of the C-shaped guide rail assembly 3-6. Two sets of cam followers 3-8 are respectively installed at the ends of the other two sets of support arms 3-7 to support the workpiece.

[0054] like Figure 4 As shown, the tailstock clamping assembly 4 includes a tailstock clamping assembly servo motor 4-1, a tailstock clamping assembly ball screw assembly 4-2, a cylinder 4-3, a sliding assembly 4-4, a connecting block 4-5, a positioning block 4-6, a tailstock clamping assembly mounting plate 4-7, and a support base 4-8. The tailstock clamping assembly servo motor 4-1 drives the tailstock clamping assembly ball screw assembly 4-2, thereby causing the tailstock clamping assembly mounting plate 4-7 below the tailstock to move in the X direction to accommodate the clamping and positioning of inner liners of different lengths. A support base 4-8 is installed above the tailstock clamping assembly mounting plate 4-7, and the cylinder 4-3, sliding assembly 4-4, connecting block 4-5, and positioning block 4-6 are sequentially installed on top of it. A spring device is provided at the shaft end of the sliding assembly 4-4 to accommodate deviations in the length direction of the workpiece itself.

[0055] like Figure 3 and Figure 4As shown, the cutting detection component 5 includes a first servo motor 5-1, a ball screw assembly 5-2, a sliding mounting plate 5-3, a Y-axis translation servo motor 5-4, a mounting plate 5-5, and a Y-axis feed servo motor 5-6. The system includes an X-axis feed servo motor 5-7, an electric spindle 5-8, a detection component support column 5-9, a second servo motor 5-10 for the cutting detection component, a line laser scanner 5-11, and a dust nozzle 5-12. The first servo motor 5-1 of the cutting detection component drives the ball screw assembly 5-2, thereby actuating the sliding mounting plate 5-3 for mounting the detection and cutting devices. Above the sliding mounting plate 5-3, a Y-axis translation servo motor 5-4 drives a ball screw to move the upper cutting detection component mounting plate 5-5, accommodating the avoidance and rapid movement of inner tubes of different diameters in the Y direction. Above the cutting detection component mounting plate 5-5, a Y-axis feed servo motor 5-6 drives a synchronous belt and pulley mechanism, and an X-axis feed servo motor 5-10 is sequentially mounted. -7 The drive ball screw mechanism is used to drive the electric spindle 5-8 installed at the moving end of the X-axis feed mechanism, and a milling cutter is installed at the end for weld cutting operations. A dust collector is set at the end of the electric spindle 5-8 for chip removal during cutting operations. A large negative pressure dust collector is equipped on the outside to suck up the waste chips generated during cutting operations. The cutting detection component 5 is also equipped with a detection component support column 5-9. A second servo motor 5-10 of the cutting detection component is installed on the upper side to drive the single-axis module to move. A line laser scanner 5-11 and a dust nozzle 5-12 are fixedly installed on the moving part of the single-axis module driven by the second servo motor 5-10 of the cutting detection component. During the cutting operation, the line laser scanner 5-11 performs dimensional detection of the cut part, and a dust nozzle 5-12 is equipped in front of its lens to blow off dust and waste chips that may be attached to the lens surface to ensure detection accuracy.

[0056] The working process of the welding seam cutting machine for the inner liner of the Type IV hydrogen storage cylinder mainly includes the following steps:

[0057] Preparation and Positioning: The hydrogen storage cylinder inner liner to be processed is placed on the rotary clamping and positioning assembly. The rotary clamping and positioning assembly is driven by an internal rotary servo motor, utilizing a large gear and crossed roller bearings to achieve the rotational positioning of the inner liner. Simultaneously, the end face positioning seat and the workpiece shoulder positioning block (driven by a cylinder with a guide rod) work together to ensure accurate clamping and positioning of the inner liner; the lifting and limiting assembly adjusts its height according to the inner liner's diameter, supporting the workpiece with a support arm and cam follower to ensure stability; the tailstock clamping assembly adjusts its movement in the X direction according to the inner liner's length, achieving clamping and positioning of the other end of the inner liner through the combined action of a cylinder, sliding assembly, connecting block, and positioning block.

[0058] Parameter setting and recall: Within the equipment control system, select or input the corresponding formula according to the specifications of the inner liner to be processed. Each formula corresponds to a set of parameter information for each location within the equipment, ensuring the accuracy and efficiency of the cutting operation. If parameters for the same specifications have already been set, the product number can be directly recalled, saving time.

[0059] Cutting Operation: The cutting detection component begins operation. The first servo motor of the cutting detection component drives the ball screw assembly, moving the sliding mounting plate and the cutting device above it (including the Y-axis translation servo motor, the cutting detection component mounting plate, the Y-axis feed servo motor, the X-axis feed servo motor, and the electric spindle, etc.) to their initial positions. The electric spindle starts, and the end mill mounted at the front end begins the weld seam cutting operation. Simultaneously, the dust collector and the external high-negative-pressure dust collector begin operation, sucking up the waste chips generated during the cutting operation. The Y-axis translation servo motor and the X-axis feed servo motor drive the electric spindle to perform precise Y-axis and X-axis feed operations according to preset parameter information, ensuring the accuracy and efficiency of the cutting.

[0060] Inspection and Feedback: During the cutting operation, the line laser scanner performs dimensional inspection of the already cut portion; dust nozzles blow away any dust or debris that may be adhering to the lens surface, ensuring inspection accuracy; the inspection results are fed back to the equipment control center in real time. If the cutting results are abnormal, the equipment will generate an alarm and stop, awaiting manual intervention.

[0061] Completion and Reset: After the cutting operation and inspection are completed, each component begins to reset. The cutting and inspection component, tailstock clamping component, and lifting and limiting component automatically return to their initial or safe positions according to preset parameter information. The worker can then remove the finished inner liner, place a new inner liner to be processed, and repeat the above process.

[0062] The entire process is precisely controlled by the PLC's internal program to manage the movement and sequence of each component, enabling coordinated operation of multiple actions such as automatic cutting, automatic dust removal, and automatic detection. Simultaneously, the equipment's control system includes formulas tailored to different product specifications, allowing the equipment to flexibly handle the processing needs of inner liner sizes, significantly improving the production efficiency of workpiece weld cutting and product qualification.

[0063] This Type IV hydrogen storage cylinder inner liner weld cutting machine uses a PLC internal program to precisely control the movement of the milling cutter and line laser scanner. Combined with the machine's servo drive mechanism, it performs multiple actions including automatic cutting, automatic dust removal, and automatic detection. Detection results are fed back to the equipment control center in real time. An alarm is triggered and the machine stops for manual intervention when abnormal cutting results occur. This allows for timely monitoring of the machine's cutting performance. The control system is equipped with formulas for different product specifications. Each formula corresponds to a set of parameters for each product within the machine. Parameters only need to be set once for each product; subsequent production runs can directly use the product number. This significantly improves the production efficiency and product quality of weld cutting while greatly reducing scrap.

Claims

1. A Type IV hydrogen storage cylinder liner weld cut-off machine characterized by, The whole machine frame (1), the rotating clamping positioning assembly (2), the lifting limiting assembly (3), the tailstock top pressing assembly (4) and the cutting detection assembly (5) are arranged on the whole machine frame (1), the rotating clamping positioning assembly (2) comprises a rotatable connecting piece (2-8), the rotating center of the connecting piece (2-8) is parallel to the horizontal plane, an end face positioning seat (2-5) is arranged at the center of the connecting piece (2-8), and oppositely arranged workpiece shoulder positioning blocks (2-6) are arranged at the two ends of the connecting piece (2-8), the tailstock top pressing assembly (4) comprises a rotatable positioning block (4-6) which is concentric with the rotating center of the connecting piece (2-8), the workpiece shoulder positioning blocks (2-6) and the positioning block (4-6) are used for clamping the two ends of the inner barrel respectively, the lifting limiting assembly (3) comprises a liftable supporting arm (3-7), and the cutting detection assembly (5) comprises an electric spindle (5-8) for mounting a milling cutter which can move and feed in the horizontal direction and the vertical direction and a linear laser scanner (5-11) which can move in the horizontal direction.

2. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 1, wherein, The bottom of the whole machine frame (1) is provided with adjustable height feet.

3. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 1, wherein, The whole machine frame (1) is fixedly provided with a machine body shell (7) which covers the rotating clamping positioning assembly (2), the lifting limiting assembly (3), the tailstock top pressing assembly (4) and the cutting detection assembly (5).

4. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 3, wherein, The whole machine frame (1) is further fixedly provided with an electric control cabinet (6), and the electric control cabinet (6) is arranged outside the machine body shell (7).

5. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 1, wherein, The rotating clamping positioning assembly (2) further comprises a support (2-9) which is fixedly installed on the whole machine frame (1), a cross roller bearing (2-4) is fixedly installed on the top of the support (2-9), one side of the rotatable part of the cross roller bearing (2-4) is fixedly connected with the connecting piece (2-8), and the other side of the rotatable part of the cross roller bearing (2-4) is fixedly connected with a rotating driving device.

6. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 5, wherein, A guide rod cylinder (2-7) is fixedly arranged at each end of the connecting piece (2-8), and the two workpiece shoulder positioning blocks (2-6) are fixedly connected with the telescopic rods of the guide rod cylinders (2-7) respectively.

7. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 5, wherein, The rotating driving device comprises a rotating driving servo motor (2-1) and a large gear (2-2), the rotating driving servo motor (2-1) is fixed on the support (2-9), the large gear (2-2) is fixedly connected with the other side of the rotatable part of the cross roller bearing (2-4), and the output shaft of the rotating driving servo motor (2-1) is fixedly installed with a pinion gear which is engaged with the large gear (2-2).

8. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 7, wherein, A gas and circuit signal rotating output guide rod cylinder (2-7) gas and circuit signal gas and circuit slip ring (2-3) is installed on the large gear (2-2).

9. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 1, wherein, Two groups of cam followers (3-8) for supporting the workpiece are arranged on the supporting arm (3-7).

10. A Type IV hydrogen storage cylinder liner weld cutting machine as set forth in claim 1, wherein, A dustproof nozzle (5-12) is arranged beside the linear laser scanner (5-11).

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