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

Abstract

The invention 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] The present invention relates to the technical field of the processing of the inner liner of a type-IV hydrogen storage cylinder, and particularly relates to a cutting machine for the weld seam of the inner liner of a type-IV hydrogen storage cylinder. Background Art

[0002] As a key component of a hydrogen storage cylinder, the injection-molded inner liner of a type-IV hydrogen storage cylinder has its manufacturing quality directly affecting the hydrogen storage efficiency and safety. As Figure 5 shown, such an inner liner is usually formed by welding two parts, namely a head 8 and a barrel 9, after injection molding. During the welding process, one or two circles of weld beads 10 will be formed at the weld joint. The height of the weld bead is usually higher than other injection-molded parts of the inner liner, which not only affects the appearance quality of the inner liner, but more importantly, it will pose an obstacle to the subsequent carbon fiber winding work, because it is difficult to ensure the uniformity and tight combination of the carbon fiber layer on the uneven weld bead surface.

[0003] Currently, there is a lack of specialized equipment in the market for the cutting treatment of the weld seam of the inner liner of a hydrogen storage cylinder. Most manufacturers still adopt the method of manually rotating the product with a simple roller tooling and cooperating with electric tools for cutting. This method has many deficiencies: First, the cutting operation takes a long time and has low efficiency; second, due to the uncontrollability of manual operation, the consistency of the cutting opening of the weld seam is poor, the surface is uneven, and it is difficult to ensure the thickness uniformity at the weld seam of the inner liner; finally, the high scrap rate caused by this manual operation method increases the production cost.

[0004] In view of the above situation, it is particularly important to develop a device that can automatically and precisely cut the weld seam of the inner liner of a type-IV hydrogen storage cylinder. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a cutting machine for the weld seam of the inner liner of a type-IV hydrogen storage cylinder, which realizes the automatic rotation and automatic cutting of the weld seam of the inner liner; the highly automated operation mode not only greatly improves the production efficiency, but also effectively reduces the labor intensity of the operators.

[0006] The technical solution of the present invention is as follows: A type-IV hydrogen storage cylinder inner liner weld cutting machine includes an overall machine frame, a rotary clamping and positioning assembly, a lifting and limiting assembly, a tailstock tightening assembly, and a cutting and detecting assembly. The rotary clamping and positioning assembly, the lifting and limiting assembly, the tailstock tightening assembly, and the cutting and detecting assembly are installed on the overall machine frame. The rotary clamping and positioning assembly includes a rotatable connecting piece, the rotation center of the connecting piece is parallel to the horizontal plane, an end face positioning seat is arranged at the center of the connecting piece, and oppositely arranged retractable workpiece shoulder positioning blocks are respectively arranged at both ends of the connecting piece. The tailstock tightening assembly includes a rotatable positioning block concentric with the rotation center of the connecting piece. The workpiece shoulder positioning blocks and the positioning block are respectively used to clamp both ends of the inner liner. The lifting and limiting assembly includes a liftable support arm. The cutting and detecting assembly includes an electric spindle for installing a milling cutter that can move and feed in the horizontal and vertical directions respectively, and a line laser scanner that can move in the horizontal direction.

[0007] Adjustable-height feet are provided at the bottom of the overall machine frame.

[0008] A machine body shell that covers the rotary clamping and positioning assembly, the lifting and limiting assembly, the tailstock tightening assembly, and the cutting and detecting assembly is fixedly arranged on the overall machine frame.

[0009] An electric control cabinet is also fixedly arranged on the overall machine frame, and the electric control cabinet is arranged outside the machine body shell.

[0010] The rotary clamping and positioning assembly further includes a support, the support is fixedly installed on the overall machine frame, a cross roller bearing is fixedly installed on the top of the support, one side of the rotatable part of the cross roller bearing is fixedly connected to the connecting piece, and a rotary drive device is fixedly connected to the other side of the rotatable part of the cross roller bearing.

[0011] Rodless cylinders are respectively fixedly arranged at both ends of the connecting piece, and the two workpiece shoulder positioning blocks are respectively fixedly connected to the telescopic rods of the rodless cylinders.

[0012] The rotary drive device includes a rotary drive servo motor and a large gear. The rotary drive servo motor is fixed on the support, the large gear is fixedly connected to the other side of the rotatable part of the cross roller bearing, and a small gear meshing with the large gear is fixedly installed on the output shaft of the rotary drive servo motor.

[0013] An air-electric slip ring that can rotate and output the air path and circuit signals of the rodless cylinder is installed on the large gear.

[0014] Two sets of cam followers for supporting the workpiece are arranged on the support arm.

[0015] A dust-proof nozzle is arranged beside the line laser scanner.

[0016] The beneficial effects of the present invention are as follows: 1. A Type-IV hydrogen storage bottle inner liner weld cutting machine disclosed by the present invention. The Type-IV hydrogen storage bottle inner liner weld cutting machine precisely controls the walking position of the milling cutter at the front end of the electric spindle through the internal program of the PLC, and closely cooperates with the servo drive system of the equipment itself to achieve the automatic rotation and automatic cutting of the inner liner weld; not only greatly improves the production efficiency, but also effectively reduces the labor intensity of the operators.

[0017] 2. A Type-IV hydrogen storage bottle inner liner weld cutting machine disclosed by the present invention. The Type-IV hydrogen storage bottle inner liner weld cutting machine uses the milling cutter driven by the electric spindle for cutting, and cooperates with multiple groups of servo drive mechanisms to ensure the stability and accuracy of the cutting process; the cross-section of the weld after cutting is flat and consistent, meeting the strict requirements of the subsequent carbon fiber winding work, and effectively reducing the scrap rate.

[0018] 3. A Type-IV hydrogen storage bottle inner liner weld cutting machine disclosed by the present invention. The cutting detection component of the Type-IV hydrogen storage bottle inner liner weld cutting machine is equipped with a line laser scanner, which automatically positions and scans through the single-axis module driven by the servo motor, and can monitor the quality of the weld after cutting in real time; at the same time, the setting of the dust-proof nozzle can also effectively prevent the interference of cutting droplets on the scanning result and ensure the accuracy of the detection result.

[0019] 4. A Type-IV hydrogen storage bottle inner liner weld cutting machine disclosed by the present invention. The Type-IV hydrogen storage bottle inner liner weld cutting machine improves the product coverage to a diameter of 200 mm - 400 mm and a length of 800 mm - 2500 mm through various servo adjustment mechanisms and the design of the stroke, greatly improving the flexible coverage of the product; it can be applied to the inner liners of Type-IV hydrogen storage bottles of various different sizes, reducing the cost expenditure of the client for products and equipment with different bottle body size requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention.

[0021] In the drawings: Figure 1 is the front axonometric three-dimensional structure schematic diagram of a Type-IV hydrogen storage bottle inner liner weld cutting machine according to an embodiment of the present invention without the electrical cabinet and the equipment shell; Figure Ⅰ ; Figure 2 is the three-dimensional structure schematic diagram of a Type-IV hydrogen storage bottle inner liner weld cutting machine according to an embodiment of the present invention with the electrical cabinet and the equipment shell; Figure 3 is the rear axonometric three-dimensional structure schematic diagram of a Type-IV hydrogen storage bottle inner liner weld cutting machine according to an embodiment of the present invention without the electrical cabinet and the equipment shell; Figure 4 A schematic diagram of the front axonometric three-dimensional structure of a type IV hydrogen storage bottle liner weld cutting machine without an electrical cabinet and an equipment housing according to an embodiment of the present invention Figure Ⅱ ; Figure 5 It is a schematic diagram of the inner liner of a type IV hydrogen storage bottle and its weld in the background technology; The components represented by the reference numerals in the figure are: The present invention comprises: 1. a complete machine frame, 2. a rotating clamping and positioning assembly, 3. a lifting and limiting assembly, 4. a tailstock tightening assembly, 5. a cutting and detecting assembly, 6. an electric control cabinet, 7. a machine body shell, 8. a sealing head, 9. a barrel, 10. a welding seam; 2-1, rotary drive servo motor, 2-2, large gear, 2-3, pneumatic slip ring, 2-4, cross roller bearing, 2-5, end face locating seat, 2-6, workpiece shoulder locating block, 2-7, cylinder with guide rod, 2-8, connector, 2-9, support; 3-1, servo motor of lifting and limiting assembly, 3-2, toothed belt pulley assembly, 3-3, ball screw assembly of lifting and limiting assembly, 3-4, linear guide rail assembly, 3-5, bracket, 3-6, C-type guide rail assembly, 3-7, bracket arm, 3-8, cam follower; 4-1, servo motor of tailstock clamping assembly, 4-2, ball screw assembly of tailstock clamping assembly, 4-3, cylinder, 4-4, sliding assembly, 4-5, connecting block, 4-6, positioning block, 4-7, mounting plate of tailstock clamping assembly, 4-8, support seat; 5-1. The first servo motor of the cutting detection assembly, 5-2. The ball screw assembly of the cutting detection assembly, 5-3. The sliding mounting plate, 5-4. The Y-axis translation servo motor, 5-5. The mounting plate of the cutting detection assembly, 5-6. The Y-axis feed servo motor, 5-7. The X-axis feed servo motor, 5-8. The electric spindle, 5-9. The support column of the detection assembly, 5-10. The second servo motor of the cutting detection assembly, 5-11. The line laser scanner, 5-12. The dust-proof nozzle. DETAILED DESCRIPTION Example

[0022] like Figures 1 to 4As shown in the figure, a cutting machine for the inner liner weld of a type-IV hydrogen storage cylinder includes a whole machine frame 1, a rotary clamping and positioning assembly 2, a lifting and limiting assembly 3, a tailstock tightening assembly 4, a cutting and detecting assembly 5, an electric control cabinet 6 and a body shell 7. The rotary clamping and positioning assembly 2 is fixedly installed at the right side position in the length direction above the whole machine frame 1. The tailstock tightening assembly 4 and the cutting and detecting assembly 5 are movably installed above the whole machine frame 1 through different sliders on linear guides and ball screw assemblies driven by different servo motors. The two share two linear guides and are located on the right side of the rotary clamping and positioning assembly 2. The lifting and limiting assembly 3 is fixedly installed at the rear side of the whole machine frame 1, and the drag block of the assembly itself can be adjusted manually in the horizontal direction. The electric control cabinet 6 is fixedly installed on the whole machine frame 1 in front of the rotary clamping and positioning assembly 2. The bottom of the whole machine frame 1 is provided with adjustable-height feet for adjusting the equipment level. The body shell 7 is fixedly installed around the whole machine frame 1 to cover the internal structure.

[0023] 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 at the rear side of the vertical surface of a support 2-9 through a speed reducer. At the middle position above the support 2-9, an crossed roller bearing 2-4 is fixedly installed. At the rear side of the rotatable part of the crossed roller bearing 2-4, a large gear 2-2 and a gas-electric slip ring 2-3 are respectively installed. At the front side, a connecting piece 2-8 and an end face positioning seat 2-5 are installed. On both sides of the connecting piece 2-8, a set of rodless cylinders 2-7 and workpiece shoulder positioning blocks 2-6 are respectively installed.

[0024] The lifting and limiting assembly 3 is also provided with a lifting and limiting assembly servo motor 3-1 for driving through two sets of toothed belt pulley assemblies 3-2 and two sets of lifting and limiting assembly ball screw assemblies 3-3. Cooperating with two sets of linear guide assemblies 3-4, the lifting and limiting assembly 3 can be automatically lifted and lowered.

[0025] A bracket 3-5 is fixedly installed on the slider of the linear guide assembly 3-4. Above the bracket 3-5, two sets of C-shaped guide assemblies 3-6 are fixedly installed. On the sliders of the C-shaped guide assemblies 3-6, two sets of support arms 3-7 are provided. At the ends of the two sets of support arms 3-7, two sets of cam followers 3-8 are respectively installed for supporting the workpiece.

[0026] The tailstock tightening assembly 4 is also provided with a tailstock tightening assembly servo motor 4-1 for driving a tailstock tightening assembly ball screw assembly 4-2, thereby driving a tailstock tightening assembly mounting plate 4-7 below the tailstock.

[0027] Above the mounting plate 4-7 of the tailstock clamping assembly, a support seat 4-8 is installed. Above the support seat 4-8, a cylinder 4-3, a sliding assembly 4-4, a connecting block 4-5 and a positioning block 4-6 are installed in sequence. 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.

[0028] The cutting detection assembly 5 is also provided with a ball screw assembly 5-2 driven by a first servo motor 5-1 of the cutting detection assembly, so as to drive the sliding mounting plate 5-3 for installing the detection device and the cutting device.

[0029] Above the sliding mounting plate 5-3, a Y-direction translation servo motor 5-4 is installed to drive a ball screw to drive the upper cutting detection assembly mounting plate 5-5.

[0030] Above the cutting detection assembly mounting plate 5-5, a Y-direction feed servo motor 5-6 is provided to drive a synchronous belt and synchronous pulley mechanism to perform Y-direction feeding operation.

[0031] Above the synchronous belt and synchronous pulley mechanism driven by the Y-direction feed servo motor 5-6, an X-direction feed servo motor 5-7 is installed to drive a ball screw mechanism to perform X-direction feeding operation.

[0032] Above the ball screw mechanism driven by the X-direction feed servo motor 5-7, an electric spindle 5-8 is installed, and a milling cutter is installed at the front end to perform weld cutting operation.

[0033] The cutting detection assembly 5 is also provided with a support column 5-9 of the detection assembly. At the upper part of the support column 5-9 of the detection assembly, a second servo motor 5-10 of the cutting detection assembly is laterally installed to drive a single-axis module to move.

[0034] On the moving part of the single-axis module driven by the second servo motor 5-10 of the cutting detection assembly, a line laser scanner 5-11 and a dust-proof nozzle 5-12 are fixedly installed. Embodiment

[0035] As Figure 1 and Figure 2 shown, the type-IV hydrogen storage bottle inner liner weld cutting machine includes an integral machine 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 electric control cabinet 6 and a machine body shell 7.

[0036] The rotary clamping and positioning assembly is fixedly installed at the upper right position in the length direction of the whole machine frame. The tailstock tightening assembly and the cutting detection assembly are movably installed above the whole machine frame through different sliders on linear guides and ball screw assemblies driven by different servo motors. The two 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 at the rear of the whole machine frame, and the slider of the assembly itself can be adjusted manually in the horizontal direction. The electrical control cabinet is fixedly installed on the whole machine frame in front of the rotary clamping and positioning assembly. The bottom of the whole machine frame is provided with adjustable feet for adjusting the equipment level. The body shell is fixedly installed around the whole 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 parameter information of each position in the equipment for a set of products. Each product only needs to set the parameters once, and the number can be directly called when producing the same product next time.

[0037] Through the design of various adjustment mechanisms and strokes, the product coverage of the equipment is increased to: diameter 200mm - 400mm, product length 800 - 2500mm, greatly improving the product flexibility coverage and considerably reducing the cost expenditure of the equipment for products with different bottle body sizes required by the client.

[0038] As Figure 3 As shown in the figure, the rotary clamping and positioning assembly 2 includes a rotary drive servo motor 2-1, a gear 2-2, a gas-electric 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 rodless cylinder 2-7, a connecting piece 2-8, and a support 2-9. The rotary drive servo motor 2-1 is fixedly installed at the rear of the vertical face of the support 2-9 through a speed reducer, and is driven to connect with the large gear 2-2 at the rear end of the crossed roller bearing 2-4 through the small gear at the front end of the speed reducer. The front side of the rotatable part of the crossed roller bearing 2-4 is provided with a connecting piece 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. In addition, the workpiece shoulder positioning blocks 2-6 on both sides of the connecting piece 2-8 are used for positioning the inner bottle shoulder shape through two sets of rodless cylinders 2-7. A gas-electric slip ring 2-3 is equipped at the rear of the large gear 2-2 for rotatably outputting the gas circuit and electrical signal of the rodless cylinder 2-7.

[0039] As Figure 3As shown in the figure, the lifting and limiting component 3 includes a lifting and limiting component servo motor 3-1, a toothed belt pulley component 3-2, a lifting and limiting component ball screw component 3-3, a linear guide rail component 3-4, a bracket 3-5, a C-shaped guide rail component 3-6, a lifting arm 3-7, and a cam follower 3-8. The lifting and limiting component servo motor 3-1 is used to drive through two groups of toothed belt pulley components 3-2 and two groups of lifting and limiting component ball screw components 3-3, and cooperate with two groups of linear guide rail components 3-4 so that the lifting and limiting component 3 can be automatically lifted and lowered to adapt to the lifting and limiting of inner liners with different specification diameters. A bracket 3-5 is fixedly installed on the slider of the linear guide rail component 3-4, and two groups of C-shaped guide rail components 3-6 are fixedly installed thereon. Two groups of lifting arms 3-7 are arranged on the slider of the C-shaped guide rail component 3-6. Two groups of cam followers 3-8 are respectively installed at the ends of the other two groups of lifting arms 3-7 for holding the workpiece.

[0040] As Figure 4 shown in the figure, the tailstock clamping component 4 includes a tailstock clamping component servo motor 4-1, a tailstock clamping component ball screw component 4-2, a cylinder 4-3, a sliding component 4-4, a connecting block 4-5, a positioning block 4-6, a tailstock clamping component mounting plate 4-7, and a support seat 4-8. The tailstock clamping component servo motor 4-1 drives the tailstock clamping component ball screw component 4-2, thereby driving the tailstock clamping component mounting plate 4-7 below the tailstock to move in the X direction to adapt to the clamping and positioning of inner liners with different length specifications. A support seat 4-8 is installed above the tailstock clamping component mounting plate 4-7, and a cylinder 4-3, a sliding component 4-4, a connecting block 4-5, and a positioning block 4-6 are sequentially installed above it. A spring device is arranged at the shaft end of the sliding component 4-4 to adapt to the deviation in the length direction of the workpiece itself.

[0041] As Figure 3 and Figure 4As shown in the figure, the cutting detection component 5 includes a first servo motor 5-1 of the cutting detection component, a ball screw assembly 5-2 of the cutting detection component, a sliding mounting plate 5-3, a Y-direction translation servo motor 5-4, a mounting plate 5-5 of the cutting detection component, a Y-direction feed servo motor 5-6, an X-direction feed servo motor 5-7, an electric spindle 5-8, a support column 5-9 of the detection component, a second servo motor 5-10 of the cutting detection component, a line laser scanner 5-11 and a dust-proof nozzle 5-12. The first servo motor 5-1 of the cutting detection component drives the ball screw assembly 5-2 of the cutting detection component to drive the sliding mounting plate 5-3 for mounting the detection device and the cutting device. Above the sliding mounting plate 5-3, a Y-direction translation servo motor 5-4 is installed to drive the ball screw to drive the upper mounting plate 5-5 of the cutting detection component, which is used to adapt to the avoidance and rapid travel displacement of inner liners with different specifications and diameters in the Y direction. Above the mounting plate 5-5 of the cutting detection component, a Y-direction feed servo motor 5-6 drives a synchronous belt and synchronous pulley mechanism and an X-direction feed servo motor 5-7 drives a ball screw mechanism to drive the electric spindle 5-8 installed at the mobile end of the X-direction feed mechanism, and a milling cutter is installed at the end for welding seam cutting operation. At the end position of the electric spindle 5-8, a dust removal cylinder for chip removal during cutting operation is provided, and a large negative pressure dust removal device is equipped outside to suck the waste chips generated during cutting operation. In addition, the cutting detection component 5 is also provided with a support column 5-9 of the detection component, and a second servo motor 5-10 of the cutting detection component is laterally installed on its upper part to drive a single-axis module to move. The moving part of the single-axis module driven by the second servo motor 5-10 of the cutting detection component is fixedly installed with a line laser scanner 5-11 and a dust-proof nozzle 5-12. During the cutting operation, the line laser scanner 5-11 detects the dimensions of the part that has been cut, and a dust-proof nozzle 5-12 is equipped in front of the lens side to blow off the dust waste chips that may hang on the lens surface to ensure the detection accuracy.

[0042] The working process of the type-IV hydrogen storage cylinder inner liner welding seam cutting machine mainly includes the following steps: Preparation and positioning: Place the hydrogen storage cylinder inner liner to be processed on the rotary clamping and positioning component. The rotary clamping and positioning component is driven by a rotary drive servo motor inside it, and the inner liner is rotationally positioned by using a large gear and a crossed roller bearing. At the same time, the end face positioning seat and the workpiece shoulder positioning block (driven by a rodless cylinder) work together to ensure the accurate clamping and positioning of the inner liner; the lifting and limiting component adjusts the height according to the diameter of the inner liner, holds the workpiece by the lifting arm and the cam follower to ensure its stability; the tailstock tightening component adjusts the movement in the X direction according to the length of the inner liner, and through the cooperation of the cylinder, the sliding component, the connecting block and the positioning block, the clamping and positioning of the other end of the inner liner are realized.

[0043] Parameter Setting and Invocation: In the device control system, select or input the corresponding recipe according to the specifications of the inner tank to be processed. Each recipe corresponds to the parameter information of each position in the device for a set of products, ensuring the accuracy and efficiency of the cutting operation. If the parameters for products of the same specifications have been set before, the number can be directly invoked to save time.

[0044] Cutting Operation: The cutting detection component starts to work. The first servo motor of the cutting detection component drives the ball screw assembly of the cutting detection component, driving the sliding mounting plate and the cutting device above it (including the Y-direction translation servo motor, the cutting detection component mounting plate, the Y-direction feeding servo motor, the X-direction feeding servo motor, and the electric spindle, etc.) to move to the initial position; the electric spindle starts, and the milling cutter installed at the front end starts the weld cutting operation; at the same time, the dust removal cylinder and the external large negative pressure dust removal equipment start to work, sucking the waste chips generated by the cutting operation; the Y-direction translation servo motor and the X-direction feeding servo motor drive the electric spindle to perform precise Y-direction and X-direction feeding operations according to the preset parameter information, ensuring the accuracy and efficiency of the cutting.

[0045] Detection and Feedback: During the cutting operation, the line laser scanner performs dimensional detection on the already cut part; the dust-proof nozzle blows off the dust waste chips that may hang on the lens surface to ensure the detection accuracy; the detection results are real-time fed back to the device control center. If the cutting result is abnormal, the device will generate an alarm and stop, waiting for manual intervention.

[0046] Completion and Reset: When both the cutting operation and the detection are completed, each component starts to reset. The cutting detection component, the tailstock clamping component, the lifting and limiting component, etc. automatically return to the initial position or the safe position according to the preset parameter information. Workers can remove the processed inner tank and place a new inner tank to be processed, repeating the above work process.

[0047] The entire process precisely controls the walking positions and action sequences of each component through the internal program of the PLC, realizing the collaborative operation of multiple groups of actions such as automatic cutting, automatic dust removal, and automatic detection. At the same time, the recipes for products of different specifications set in the device control system enable the device to flexibly respond to the processing requirements of inner tanks of different sizes, greatly improving the production efficiency and product qualification rate of workpiece weld cutting.

[0048] The Type-IV hydrogen storage bottle inner liner weld cutting machine precisely controls the walking positions of the milling cutter and the line laser scanner through the internal program of the PLC, and completes multiple groups of actions such as automatic cutting, automatic dust removal, and automatic detection in cooperation with the servo drive mechanism of the equipment itself. The detection results are real-time fed back to the equipment control center. When abnormal cutting results occur, an alarm is generated to stop the machine and manual intervention is required, enabling the operator to promptly understand whether the cutting operation of the equipment is qualified. Moreover, a formula for different specifications of products is set in the control system. One formula corresponds to the parameter information of each position in the equipment for a set of products. Each type of product only needs to set the parameters once, and the number can be directly called when producing again next time, greatly improving the production efficiency and product qualification rate of workpiece weld cutting, and at the same time significantly reducing the generation of scrap products.

Claims

1. A type IV hydrogen storage bottle liner weld cutting machine, characterized in that: The invention comprises a whole machine frame (1), a rotary clamping and positioning assembly (2), a lifting and limiting assembly (3), a tailstock tightening assembly (4) and a cutting detection assembly (5), wherein the rotary clamping and positioning assembly (2), the lifting and limiting assembly (3), the tailstock tightening assembly (4) and the cutting detection assembly (5) are mounted on the whole machine frame (1), and the rotary clamping and positioning assembly (2) comprises a rotatable connecting member (2-8), wherein the rotation center of the connecting member (2-8) is parallel to the horizontal plane, an end face locating seat (2-5) is arranged at the center of the connecting member (2-8), and two ends of the connecting member (2-8) are provided with a plurality of end face locating seats (2-5). A retractable workpiece shoulder positioning block (2-6) is arranged opposite to each other, the tailstock clamping assembly (4) includes a rotatable positioning block (4-6) concentric with the rotation center of the connecting member (2-8), the workpiece shoulder positioning block (2-6) and the positioning block (4-6) are respectively used to clamp the two ends of the inner liner, the lifting and limiting assembly (3) includes a lifting and lowering support arm (3-7), and the cutting detection assembly (5) includes an electric spindle (5-8) for installing a milling cutter that can move and feed in the horizontal direction and the vertical direction respectively, and a line laser scanner (5-11) that can move in the horizontal direction.

2. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 1, characterized in that: The bottom of the whole machine frame (1) is provided with height-adjustable feet.

3. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 1, characterized in that: A body shell (7) is fixedly arranged on the whole machine frame (1) and covers the rotary clamping positioning assembly (2), the lifting limit assembly (3), the tailstock tightening assembly (4) and the cutting detection assembly (5).

4. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 3, characterized in that: An electric control cabinet (6) is also fixedly mounted on the whole machine frame (1), and the electric control cabinet (6) is arranged outside the machine body shell (7).

5. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 1, characterized in that: The rotary clamping positioning assembly (2) further comprises a support (2-9), the support (2-9) being fixedly mounted on the whole machine frame (1), a cross roller bearing (2-4) being fixedly mounted on the top of the support (2-9), one side of the rotatable part of the cross roller bearing (2-4) being fixedly connected to the connecting piece (2-8), and the other side of the rotatable part of the cross roller bearing (2-4) being fixedly connected to a rotary drive device.

6. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 5, characterized in that: A cylinder with a guide rod (2-7) is fixedly arranged at both ends of the connecting piece (2-8), and two workpiece shoulder positioning blocks (2-6) are fixedly connected to the telescopic rod of the cylinder with a guide rod (2-7).

7. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 5, characterized in that: The rotary drive device comprises a rotary drive servo motor (2-1) and a large gear (2-2); the rotary drive servo motor (2-1) is fixed on a support (2-9); the large gear (2-2) is fixedly connected to the other side of the rotatable part of the cross roller bearing (2-4); and a small gear meshing with the large gear (2-2) is fixedly mounted on the output shaft of the rotary drive servo motor (2-1).

8. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 7, characterized in that: A gas-electric slip ring (2-3) is mounted on the large gear (2-2) and is capable of rotatably outputting gas and circuit signals of a guide rod cylinder (2-7).

9. A type IV hydrogen storage bottle liner weld cutting machine as claimed in claim 1, characterized in that: 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 bottle liner weld cutting machine as claimed in claim 1, characterized in that: A dust-proof nozzle (5-12) is arranged next to the online laser scanner (5-11).

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