A high-pressure hydrogen composite tool

Abstract

The present application relates to the technical field of machining tools, and in particular to a high-pressure hydrogen composite tool. A high-pressure hydrogen composite tool adopts the following technical solution: it includes a tool bar, a thread cutter is coaxially arranged on the tool bar, the thread cutter is used to be arranged at one end of the tool bar, and a boring cutter is arranged on the tool bar, and the boring cutter is arranged on one side of the tool bar along the circumference of the tool bar. The present application has the following effects: when the composite tool is close to the bottle mouth, the thread cutter first contacts the bottle mouth for turning work, and at this time the boring cutter does not contact and does not participate in the machining work; after the straight thread machining is completed, the boring cutter processes the first step seat hole and the second step seat hole, which reduces the tool change link and improves the machining efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of machining tools, and in particular to a high-pressure hydrogen composite tool. Background Art

[0002] Hydrogen has always been stored as liquid in the form of compressed gas or cryogenic gas and transported in cylinders, pipelines and cryogenic tanks for use in industry or as a propellant in space programs. High-pressure hydrogen cylinders above 35Mpa have large volume and high pressure, and hydrogen is a flammable and explosive gas, so the sealing requirements for the cylinders are particularly high.

[0003] Traditional tapered threads cannot meet the sealing requirements of high-pressure hydrogen cylinders. Most high-pressure hydrogen cylinders in the industry use straight threads and sealing rings for sealing. Therefore, the concentricity of the straight threads and the sealing ring step seats and the dimensional accuracy of the step seats are very high, especially for high-pressure hydrogen cylinders of 50Mpa and above.

[0004] The traditional processing method is to use two tools to process the thread and the step seat separately, that is, the thread is first processed with a thread cutter. After the processing is completed, the system switches the tool system and switches to the second tool to process the sealing step seat, which has low production efficiency. Utility Model Content

[0005] In order to complete thread processing and sealing step seat processing in one feed and improve production efficiency, the present application provides a high-pressure hydrogen energy composite tool.

[0006] A high-pressure hydrogen energy composite tool provided in the present application adopts the following technical solution: it includes a tool rod, on which a thread cutter is coaxially arranged, the thread cutter is used to be arranged at one end of the tool rod, and a boring cutter is arranged on the tool rod, and the boring cutter is arranged on one side of the tool rod along the circumference of the tool rod.

[0007] By adopting the above technical solution, the composite tool is close to the bottle mouth, and the thread cutter first contacts the bottle mouth for turning. At this time, the boring cutter does not contact and does not participate in the processing work; after the straight thread processing is completed, the boring cutter processes the first step seat hole and the second step seat hole, reducing the tool changing links and improving the processing efficiency.

[0008] Preferably, a threaded cutter column seat is provided on the tool rod, and the threaded cutter column seat is coaxially connected between the tool rod and the thread cutter, and the radial length of the threaded cutter column seat is equal to the length of the bottle mouth of the high-pressure hydrogen energy bottle. A step seat is provided on the tool rod, and the step seat, the threaded cutter column seat and the tool rod are coaxially arranged, and the step seat is arranged between the threaded cutter column seat and the tool rod, and the outer arc surface of the step seat is used to abut against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle, and the boring cutter is installed on the step seat. When the thread cutter passes through the bottle mouth of the high-pressure hydrogen energy bottle, the boring cutter abuts against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle.

[0009] By adopting the above technical solution, since the radial length of the threaded cutter column seat is equal to the length of the bottle mouth of the high-pressure hydrogen energy bottle, the processing of the bottle mouth thread is completed when the cutter rod drives the threaded cutter column seat and the threaded cutter to rotate into the bottle mouth of the high-pressure hydrogen energy bottle. When the threaded cutter passes through the bottle mouth of the high-pressure hydrogen energy bottle, the boring cutter contacts the upper end of the bottle mouth of the high-pressure hydrogen energy bottle, and the boring cutter starts to process the first step seat hole and the second step seat hole.

[0010] Preferably, at least one step seat is provided, and a plurality of the step seats are arranged at equal angles along the circumference of the tool rod, and the boring tool is arranged on one of the step seats.

[0011] By adopting the above technical solution, a plurality of step seats are arranged at equal angles along the circumference of the tool rod to provide a guide for the boring tool to process the first step seat hole and the second step seat hole.

[0012] Preferably, the step seat includes a first step seat and a second step seat, the first step seat and the second step seat are coaxially arranged, one end face of the first step seat is in contact with one end face of the second step seat, one end face of the first step seat away from the second step seat is connected to the threaded tool column seat, one end face of the second step seat away from the first step seat is connected to the tool rod, the diameter of the second step seat is longer than the diameter of the first step seat, the boring tool portion is embedded in the first step seat, and the boring tool portion is embedded in the second step seat.

[0013] Since the high-pressure hydrogen cylinder has a large volume and high pressure, and hydrogen is a flammable and explosive gas, the sealing requirements for the cylinder are particularly high. Most high-pressure hydrogen cylinders are sealed with straight threads and sealing rings. By adopting the above technical solution, the first step seat and the second step seat are successively against the mouth of the high-pressure hydrogen cylinder, so that the first step seat hole and the second step seat hole are opened, and the dimensional accuracy of the step seat is improved.

[0014] Preferably, a clearance groove is opened on the thread cutter column seat along the axial direction of the thread cutter column seat, and the groove wall on one side of the clearance groove is parallel to the axial plane where the diameter of the thread cutter column seat is located and is a flat groove wall, and the groove wall on the other side of the clearance groove passes through the column wall on one side of the thread cutter column seat along the thread cutter column seat, and the thread cutter is embedded in the flat groove wall of the clearance groove, and the thread cutter is exposed from the thread cutter column seat along the radial portion of the thread cutter column seat to form a thread cutter blade.

[0015] By adopting the above technical solution, the opening of the clearance groove makes it easier for the composite tool to be removed from the high-pressure hydrogen cylinder after processing the first step seat hole and the second step seat hole, thereby reducing the probability of the thread cutter blade contacting the inner wall of the high-pressure hydrogen cylinder mouth.

[0016] Preferably, the height of the thread cutter column seat is 60 mm, the diameter of the thread cutter column seat is 34 mm, and the distance from one end of the thread cutter blade away from the thread cutter column seat to the thread cutter column seat away from the thread cutter is in the range of 35.5-36.5 mm along the radial direction of the thread cutter column seat.

[0017] By adopting the above technical solution, the height of the threaded tool column seat is adapted to the length of the mouth of the high-pressure hydrogen gas cylinder, which is convenient for the composite tool to process the first step seat hole and the second step seat hole after processing the straight thread. There is no need to add a tool changing program, and the centerness of the thread and the step seat is guaranteed to a certain extent.

[0018] Preferably, the height range of the first step seat along the radial direction of the threaded tool column seat is 3.10-3.35 mm, the boring tool portion exposed outside the first step seat is formed with a boring tool blade, and the distance range of the boring tool blade along the radial direction of the threaded tool column seat to the side of the threaded tool column seat away from the boring tool blade is 51.0-51.5 mm.

[0019] By adopting the above technical solution, the height range of the first step seat along the radial direction of the threaded knife column seat is adapted to the thickness of the sealing ring, which facilitates the installation of the sealing ring on the mouth of the high-pressure hydrogen gas cylinder.

[0020] Preferably, the height range of the second step seat along the radial direction of the threaded cutter column seat is 2.5-2.8 mm, and the distance range of the outer arc surface of the second step seat close to the boring cutter blade along the radial direction of the threaded cutter column seat to the side of the threaded cutter column seat away from the boring cutter blade is 59-60 mm.

[0021] By adopting the above technical solution, the first step seat and the second step seat are stepped, so that during the thread processing and step seat boring process, the boring tool does not have to reset the procedure, thereby improving the processing accuracy.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The compound tool is close to the bottle mouth, and the thread cutter first contacts the bottle mouth for turning work. At this time, the boring cutter does not contact and does not participate in the processing work; after the straight thread processing is completed, the boring cutter processes the first step seat hole and the second step seat hole, which reduces the tool change link and improves the processing efficiency;

[0024] 2. When the tool rod drives the threaded tool column seat and the threaded tool to rotate into the mouth of the high-pressure hydrogen energy bottle, the processing of the bottle mouth thread is completed. When the threaded tool passes through the mouth of the high-pressure hydrogen energy bottle, the boring tool contacts the upper end of the mouth of the high-pressure hydrogen energy bottle, and the boring tool starts to process the first step seat hole and the second step seat hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of this application;

[0026] Figure 2 It is a schematic diagram of the thread cutter and the bottle mouth in contact with the turning operation in this application;

[0027] Figure 3 It is a schematic diagram of the boring tool machining the first step hole in this application;

[0028] Figure 4 It is a schematic diagram of the boring tool machining the second step hole in this application.

[0029] Explanation of the reference numerals: 11, high-pressure hydrogen energy bottle; 110, tool rod; 111, hand-grip cutting surface; 112, threaded tool column seat; 113, clearance groove; 114, step seat; 1141, first step seat; 1142, second step seat; 120, threaded tool; 121, threaded tool blade; 122, limit plate; 130, boring tool; 131, boring tool blade. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] The present application discloses a high-pressure hydrogen composite tool, which is used for completing thread processing and sealing step seat processing with one cutting feed, thereby improving production efficiency.

[0032] refer to Figure 1 , Figure 2A high-pressure hydrogen composite tool includes a tool bar 110. In this embodiment, two hand-gripping cut surfaces 111 are provided on the tool bar 110 along the axial direction of the tool bar 110. The two hand-gripping cut surfaces 111 are symmetrically provided on the tool bar 110. A threaded tool column seat 112 is coaxially provided at one end of the tool bar 110. A clearance groove 113 is provided on the threaded tool column seat 112 along the axial direction of the threaded tool column seat 112. A groove wall on one side of the clearance groove 113 is parallel to the axial plane where the diameter of the threaded tool column seat 112 is located, and is a plane groove wall. The groove wall on the other side of the clearance groove 113 is along the threaded tool column seat 112. A thread cutter 120 is arranged on the tool rod 110 through the column wall on one side of the thread cutter column seat 112. The thread cutter 120 is embedded in the plane groove wall of the give way groove 113. The thread cutter 120 is exposed along the radial part of the thread cutter column seat 112 to form a thread cutter blade 121. The composite tool is inserted into the bottle mouth of the high-pressure hydrogen energy cylinder. The thread cutter blade 121 contacts the bottle mouth of the high-pressure hydrogen energy cylinder and starts turning. The rotation of the tool rod 110 drives the thread cutter column seat 112 to rotate, thereby realizing the processing of the straight thread on the inner wall of the bottle mouth of the high-pressure hydrogen energy cylinder.

[0033] refer to Figure 1 Since the high-pressure hydrogen energy bottle 11 adopts a straight thread and a sealing ring for sealing, the concentricity of the straight thread and the sealing ring step seat 114 and the dimensional accuracy of the step seat 114 are very high. Therefore, a step seat 114 is provided on the tool rod 110. The step seat 114 and the threaded tool column seat 112 and the tool rod 110 are coaxially arranged. The step seat 114 is arranged between the threaded tool column seat 112 and the tool rod 110. The outer arc surface of the step seat 114 is used to abut against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle 11. The step seat 114 is provided with at least one. In this embodiment In the embodiment, three step seats 114 are arranged in total, and the three step seats 114 are arranged at equal angles along the circumference of the tool rod 110. A boring tool 130 is arranged on the tool rod 110, and the boring tool 130 is arranged on one of the step seats 114. The composite tool is close to the bottle mouth, and the thread cutter 120 first contacts the bottle mouth for turning. At this time, the boring tool 130 does not contact and does not participate in the processing work; after the straight thread processing is completed, the boring tool 130 processes the first step seat hole and the second step seat hole, which reduces the tool changing link and improves the processing efficiency.

[0034] refer to Figure 1 , Figure 2 , Figure 3Further, the step seat 114 includes a first step seat 1141 and a second step seat 1142, the first step seat 1141 and the second step seat 1142 are coaxially arranged, one end face of the first step seat 1141 is fitted with one end face of the second step seat 1142, one end face of the first step seat 1141 away from the second step seat 1142 is connected to the threaded tool column seat 112, one end face of the second step seat 1142 away from the first step seat 1141 is connected to the tool rod 110, the diameter length of the second step seat 1142 is longer than the diameter length of the first step seat 1141, the boring tool 130 is partially embedded in the first step seat 1141, and the boring tool 130 is partially embedded in the second step seat 1142, the first step seat 1141 and the second step seat 1142 are in turn against the bottle mouth of the high-pressure hydrogen energy cylinder, so that the first step seat 1141 hole and the second step seat 1142 hole are opened, thereby improving the dimensional accuracy of the step seat 114.

[0035] The height range of the first step seat 1141 along the radial direction of the thread tool column seat 112 is 3.10-3.35mm, and the boring tool 130 is partially exposed from the first step seat 1141 to form a boring tool blade 131. The distance range of the boring tool blade 131 along the radial direction of the thread tool column seat 112 to the side of the thread tool column seat 112 away from the boring tool blade 131 is 51.0-51.5mm; the height range of the second step seat 1142 along the radial direction of the thread tool column seat 112 is 2.5-2.8mm, and the distance range of the outer arc surface of the second step seat 1142 close to the boring tool blade 131 along the radial direction of the thread tool column seat 112 to the side of the thread tool column seat 112 away from the boring tool blade 131 is 59-60mm.

[0036] Furthermore, the radial length of the threaded cutter column seat 112 is equal to the length of the bottle mouth of the high-pressure hydrogen energy bottle 11. When the threaded cutter 120 passes through the bottle mouth of the high-pressure hydrogen energy bottle 11, the boring cutter 130 abuts against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle 11. Since the radial length of the threaded cutter column seat 112 is equal to the length of the bottle mouth of the high-pressure hydrogen energy bottle 11, the tool rod 110 drives the threaded cutter column seat 112 and the threaded cutter 120 to rotate into the bottle mouth of the high-pressure hydrogen energy bottle 11, and the processing of the bottle mouth thread is completed. When the threaded cutter 120 passes through the bottle mouth of the high-pressure hydrogen energy bottle 11, the boring cutter 130 abuts against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle 11, and the boring cutter 130 starts to process the first step seat hole and the second step seat hole.

[0037] Specifically, the height of the thread cutter column seat 112 is 60 mm, the diameter of the thread cutter column seat 112 is 34 mm, and the distance from the end of the cutting edge away from the thread cutter column seat 112 along the radial direction of the thread cutter column seat 112 to the thread cutter column seat 112 away from the thread cutter 120 is 35.5-36.5 mm. The height of the thread cutter column seat 112 is adapted to the length of the mouth of the high-pressure hydrogen gas cylinder, which is convenient for the composite tool to process the first step seat 1141 hole and the second step seat 1142 hole after processing the straight thread. There is no need to add a tool changing program, which ensures the centerness of the thread and the step seat 114 to a certain extent.

[0038] The implementation principle of a high-pressure hydrogen energy composite tool in the embodiment of the present application is as follows: a thread cutter 120 and a boring cutter 130 are assembled on the same tool rod 110. During the design, the tool pitch and the size distance of the thread cutter 120 and the boring cutter 130 are fixed according to the bottle mouth thread and step size. There is no need to add a tool changing program, and the center degree of the thread and the step is fully guaranteed; the composite tool is close to the bottle mouth, and the thread cutter 120 first contacts the bottle mouth for turning work. At this time, the boring cutter 130 does not contact and does not participate in the processing work; after the straight thread processing is completed, the boring cutter 130 processes the first step seat hole and the second step seat hole, thereby reducing the tool changing links and improving the processing efficiency.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-pressure hydrogen composite tool, comprising a tool bar (110), characterized in that: A thread cutter (120) is coaxially arranged on the tool rod (110), and the thread cutter (120) is used to be arranged at one end of the tool rod (110). A boring cutter (130) is arranged on the tool rod (110), and the boring cutter (130) is arranged on one side of the tool rod (110) along the circumference of the tool rod (110).

2. A high-pressure hydrogen composite tool according to claim 1, characterized in that: The tool rod (110) is provided with a threaded tool column seat (112), the threaded tool column seat (112) is coaxially connected between the tool rod (110) and the threaded tool (120), the radial length of the threaded tool column seat (112) is equal to the length of the mouth of the high-pressure hydrogen energy bottle (11), and the tool rod (110) is provided with a step seat (114), the step seat (114) and the threaded tool column seat (112) are coaxially connected to each other. The step seat (114) is arranged between the threaded cutter column seat (112) and the cutter rod (110); the outer arc surface of the step seat (114) is used to abut against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle (11); the boring cutter (130) is installed on the step seat (114); when the threaded cutter (120) passes through the bottle mouth of the high-pressure hydrogen energy bottle (11), the boring cutter (130) abuts against the upper end of the bottle mouth of the high-pressure hydrogen energy bottle (11).

3. A high-pressure hydrogen composite tool according to claim 2, characterized in that: At least one step seat (114) is provided, and a plurality of the step seats (114) are arranged at equal angles along the circumference of the tool rod (110), and the boring tool (130) is arranged on one of the step seats (114).

4. A high-pressure hydrogen composite tool according to claim 3, characterized in that: The step seat (114) comprises a first step seat (1141) and a second step seat (1142); the first step seat (1141) and the second step seat (1142) are coaxially arranged; an end surface of the first step seat (1141) is in contact with an end surface of the second step seat (1142); an end surface of the first step seat (1141) away from the second step seat (1142) is connected to the threaded tool column seat (112); an end surface of the second step seat (1142) away from the first step seat (1141) is connected to the tool rod (110); a diameter length of the second step seat (1142) is longer than a diameter length of the first step seat (1141); a portion of the boring tool (130) is embedded in the first step seat (1141); and a portion of the boring tool (130) is embedded in the second step seat (1142).

5. A high-pressure hydrogen composite tool according to claim 4, characterized in that: A clearance groove (113) is provided on the thread cutter column seat (112) along the axial direction of the thread cutter column seat (112); a groove wall on one side of the clearance groove (113) is parallel to an axial plane where the diameter of the thread cutter column seat (112) is located and is a plane groove wall; a groove wall on the other side of the clearance groove (113) passes through the column wall on one side of the thread cutter column seat (112) along the thread cutter column seat (112); the thread cutter (120) is embedded in the plane groove wall of the clearance groove (113); and a thread cutter blade (121) is formed on the thread cutter column seat (112) along a radial portion of the thread cutter column seat (112) and exposed outside the thread cutter column seat (112).

6. A high-pressure hydrogen composite tool according to claim 5, characterized in that: The height of the thread cutter column seat (112) is 60 mm, the diameter of the thread cutter column seat (112) is 34 mm, and the distance from one end of the thread cutter blade (121) away from the thread cutter column seat (112) to the end of the thread cutter column seat (112) away from the thread cutter (120) along the radial direction of the thread cutter column seat (112) is in the range of 35.5-36.5 mm.

7. A high-pressure hydrogen composite tool according to claim 6, characterized in that: The height range of the first step seat (1141) along the radial direction of the threaded tool column seat (112) is 3.10-3.35 mm, the boring tool (130) is partially exposed from the first step seat (1141) to form a boring tool blade (131), and the distance range of the boring tool blade (131) along the radial direction of the threaded tool column seat (112) to the side of the threaded tool column seat (112) away from the boring tool blade (131) is 51.0-51.5 mm.

8. The high-pressure hydrogen composite tool according to claim 7, characterized in that: The height range of the second step seat (1142) along the radial direction of the threaded cutter column seat (112) is 2.5-2.8 mm, and the distance range of the outer arc surface of the second step seat (1142) close to the boring cutter blade (131) along the radial direction of the threaded cutter column seat (112) to the side of the threaded cutter column seat (112) away from the boring cutter blade (131) is 59-60 mm.

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