Carrier rocket storage tank wall plate part machining method, system, medium and equipment

Abstract

The invention provides a carrier rocket storage tank wallboard part machining method, system, medium and equipment, a numerical control gantry machine tool and a fixed vacuum chuck are selected, and the number of wallboard numerical control programming partitions and the positions of reference holes are calculated according to the length of a to-be-machined wallboard, the long axis stroke of the numerical control gantry machine tool and the length size of the fixed vacuum chuck. The numerical control gantry machine tool and the fixed vacuum suction cup are adopted, the machining problem of the ultra-long wall plate of the carrier rocket storage tank can be solved, the clamping reliability in the machining process is achieved, and the consistency of the wall thickness of the wall plate and the accuracy of the relative position relation of all areas are guaranteed; and through datum conversion and displacement machining, a solution thought is provided for a small-stroke machine tool to machine ultra-large wallboard parts, and the machining cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machining, and in particular to a method, system, medium and equipment for machining carrier rocket tank wall panel parts. Background Art

[0002] The launch vehicle tank is generally welded from the circumferentially segmented barrel wall panels, so there will be circumferential welds, generally 4. The more welds there are, the lower the overall sealing, pressure bearing and reliability of the tank will be. In addition, the more welds there are, the more complex the welding tooling will be, resulting in higher tooling costs, and the more welding processing cycle will be increased, resulting in a longer development cycle for the entire tank.

[0003] If an integrated cylinder section is used, that is, only one wall plate is rolled to form the entire cylinder, only one weld is required. The integrated cylinder section can reduce three axial welds, reduce the risk of unqualified welds, shorten the welding cycle, and greatly improve the development efficiency of the tank and shorten the development cycle.

[0004] However, when rolling the one-piece barrel section, a whole piece of super-long wall plate is required, the thickness and inner grid are first machine-milled, and then rolled. According to the conventional launch vehicle tank diameter of 3350mm and the subsequent new model of 3800mm, the wall plate length must be at least 10-12 meters. According to the conventional processing method, an ultra-large CNC gantry milling machine matching the size must be used, which has a high production cost.

[0005] Therefore, there is an urgent need for a method suitable for a small CNC gantry milling machine or tooling to achieve high-quality and high-efficiency machining of ultra-long wall panels. Summary of the invention

[0006] In view of the defects in the prior art, the purpose of the present invention is to provide a method, system, medium and equipment for processing launch vehicle tank wall panel parts.

[0007] The method for processing a carrier rocket tank wall panel part provided by the present invention comprises: Select CNC gantry machine tool and fixed vacuum suction cup, and according to the length of the wall panel to be processed , CNC gantry machine tool long axis travel And fixed vacuum cup length dimensions , calculate the number of partitions for NC programming of wall panels and the position of the reference hole; The calculation process of the number of partitions for NC programming of wall panels is as follows: Calculate the number N of vacuum cups included in the distance between the two extreme reference holes of the wall panel part. ,in, is the distance between the reference hole and the edge of the wall plate, then , that is Round up to an integer; The calculation process of the reference hole position is as follows: like , then place the wall panel to be processed on the CNC gantry machine table, press it with a pressure plate, and drill and bore the reference hole. , ,…… ; like , then place the wall panel to be processed on the CNC gantry machine table, drill and bore the reference hole. The specific process is: drilling and boring the reference hole , , , ; Move the wall panel and select the hole , Drill and bore the reference hole ; Move the wall panels one by one and select the holes , Drill and bore the reference hole .

[0008] Preferably, the last set of reference holes is processed as follows: calculate ,like If it is an integer, move the wall panels in sequence according to the previous steps, and drill and bore the reference holes; like is not an integer, then , that is, round down the integer, before Group base holes by interval Drill and bore the reference holes in sequence; the last set of reference holes , , according to the distance from the other end of the wall plate Start, Interval Drill and bore a set of reference holes , .

[0009] Preferably, during processing, according to The size of the area is determined by placing a rubber sealing ring in the fixed vacuum suction cup to ensure that the vacuum adsorption area is within the area.

[0010] Preferably, according to Move the wall panel, straighten and correct it, and set the origin to process each area separately. The specific process is as follows: like is an integer, then the reference hole , or , ...until the last group , Straighten and correct a group of holes and set the origin; like is not an integer, then , that is, round down the integer, before The regions are , or , ...until , For a group of reference holes, set the origin after straightening and correction; for the last area, , As the reference hole, set the origin after straightening and correction.

[0011] The carrier rocket tank wall panel parts processing system provided by the present invention comprises: Select CNC gantry machine tool and fixed vacuum suction cup, and according to the length of the wall panel to be processed , CNC gantry machine tool long axis travel And fixed vacuum cup length dimensions , calculate the number of partitions for NC programming of wall panels and the position of the reference hole; The calculation process of the number of partitions for NC programming of wall panels is as follows: Calculate the number N of vacuum cups included in the distance between the two extreme reference holes of the wall panel part. ,in, is the distance between the reference hole and the edge of the wall plate, then , that is Round up to an integer; The calculation process of the reference hole position is as follows: like , then place the wall panel to be processed on the CNC gantry machine table, press it with a pressure plate, and drill and bore the reference hole. , ,…… ; like , then place the wall panel to be processed on the CNC gantry machine table, drill and bore the reference hole. The specific process is: drilling and boring the reference hole , , , ; Move the wall panel and select the hole , Drill and bore the reference hole ; Move the wall panels one by one and select the holes , Drill and bore the reference hole .

[0012] Preferably, the last set of reference holes is processed as follows: calculate ,like If it is an integer, move the wall panels in sequence according to the previous steps, and drill and bore the reference holes; like is not an integer, then , that is, round down the integer, before Group base holes by interval Drill and bore the reference holes in sequence; the last set of reference holes , , according to the distance from the other end of the wall plate Start, Interval Drill and bore a set of reference holes , .

[0013] Preferably, during processing, according to The size of the area is determined by placing a rubber sealing ring in the fixed vacuum suction cup to ensure that the vacuum adsorption area is within the area.

[0014] Preferably, according to Move the wall panel, straighten and correct it, and set the origin to process each area separately. The specific process is as follows: like is an integer, then the reference hole , or , ...until the last group , Straighten and correct a group of holes and set the origin; like is not an integer, then , that is, round down the integer, before The regions are , or , ...until , For a group of reference holes, set the origin after straightening and correction; for the last area, , As the reference hole, set the origin after straightening and correction.

[0015] According to the computer-readable storage medium storing a computer program provided by the present invention, when the computer program is executed by a processor, the steps of the method for processing the launch vehicle tank wall panel parts are implemented.

[0016] The electronic device provided according to the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the method for processing the launch vehicle tank wall panel parts are implemented.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a CNC gantry machine tool and a fixed vacuum suction cup to solve the problem of processing extra-long wall panels of a launch vehicle tank, achieve the reliability of clamping during the processing, ensure the consistency of the wall thickness of the wall panel and the accuracy of the relative position relationship of each area; through reference conversion and shift processing, it provides a solution for small-stroke machine tools to process extra-large wall panel parts, greatly reducing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 This is a schematic diagram of the structure of the super-long wall panel parts of a launch vehicle tank according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the processing and clamping device for the super-long wall panel parts of the launch vehicle tank according to the present invention; Figure 3 It is a schematic diagram of the positional relationship between the super-long wall panel and the vacuum adsorption clamping device of the present invention; Figure 4 It is a schematic diagram of the reference hole positions divided into integers according to the present invention; Figure 5 This is a schematic diagram of the reference hole positions when the partitions described in the present invention are not integers.

[0019] Among them, 1-fixed vacuum suction cup, 2-movable supporting feet, 3-wall panel parts. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0021] Example 1 like Figures 1 to 5The present invention provides a processing and clamping device for an ultra-long wall panel part of a launch vehicle tank, which includes a fixed vacuum suction cup 1 and a movable support foot 2. The fixed vacuum suction cup 1 is coplanar with the movable support foot 2, the fixed vacuum suction cup 1 is connected to a vacuum pump, and the fixed wall panel part 3 is clamped by vacuum adsorption, and the movable support foot 2 can use a vacuum adsorption method or a pressure plate method to fix the part of the wall panel part 3 that extends out of the machine tool worktable.

[0022] The fixed vacuum suction cup 1 comprises a vacuum suction cup body and a sealing strip; the sealing strip is embedded in the sealing groove of the vacuum suction cup body, and its arrangement is determined according to the size of the wall panel parts.

[0023] The movable supporting legs 2 provide auxiliary support for the portion of the wall panel extending out of the fixed vacuum suction cup 1. The height of the movable supporting legs 2 is adjustable, and the number of the movable supporting legs 2 is determined according to the length of the wall panel.

[0024] The present invention provides a method for processing and benchmarking of super-long wall plate parts of a launch vehicle tank, the steps comprising: Step 1: Select the CNC gantry machine tool and fix the vacuum suction cup.

[0025] Step 2: According to the length of the wall panel to be processed , CNC gantry machine tool long axis travel And fixed vacuum cup length dimensions , calculate the number of partitions and reference hole positions for CNC programming of the wall panel.

[0026] Step 3: The number of CNC programming partitions is , N represents the number of vacuum cups contained in the distance between the two limit reference holes of the wall panel part, and the calculation , , that is Round up to an integer, where The distance between the reference hole and the edge of the wall plate is generally 100-400mm. The reference (coordinate origin) of each programming area is set on the reference hole, and each area should retain a complete lightening cavity.

[0027] Step 4: The method for determining the position of the reference hole is as follows: If selected , then place the wall panel on the machine table, press the pressure plate tightly, and drill and bore the reference hole , ,…… ; If selected , then place the wall panel on the machine table, drill and bore the reference holes. The specific method is: (1) Drilling and boring reference holes , , , ; (2) Move the wall panel and select the hole , Drill and bore the reference hole ; (3) Move the wall panels one by one and select the holes , Drill and bore the reference hole .

[0028] (4) Further, the processing of the last group of holes is as follows: calculate ,like If it is an integer, follow the previous steps to move the plate and drill and bore the reference hole; like is not an integer, then , that is, round down the integer, before Group base holes by interval Drill and bore the reference holes in sequence; the last set of reference holes , , according to the distance from the other end of the wall plate Start, Interval Drill and bore a set of reference holes , .

[0029] Step 5: During processing, according to The size of the area is determined by placing a rubber sealing ring at the fixed end of the vacuum adsorption tooling to ensure that the vacuum adsorption area is within the area.

[0030] Step 6: According to value, move the wall plate, use the reference hole to straighten and calibrate, repeat step 5 to clamp, set the origin, and process each area separately, as follows: like is an integer, then the reference hole , or , ...until the last group , Straighten and correct a group of holes and set the origin; like is not an integer, then , that is, round down the integer, before The regions are , or , ...until , For a group of holes, set the origin; for the last area, use , Use it as the reference hole, straighten it, correct it, and set the origin.

[0031] Use the dial indicator needle to , The inner wall of the hole is found , The vertices of the holes along the Y direction are slightly adjusted so that , The hole vertex is parallel to the X-axis (or Y-axis) of the machine tool to calibrate the part. Use a dial indicator to find , The center of the circle is used to set the origin of the coordinate system.

[0032] Step 7. Repeat step 6 until all features of the wall panel are processed.

[0033] Example 2 The present invention provides a method for processing and benchmarking of a super-long wall plate part of a launch vehicle tank. The wall plate of the launch vehicle tank is 12400 mm long and the major axis stroke of the processing machine tool is 4500 mm. The steps include: Step 1: Determine the size of the machine tool and the fixed end of the vacuum adsorption device. To facilitate the placement of the machine tool, the effective adsorption length of the fixed end of the vacuum adsorption device can be designed to be 4000mm. Step 2: Calculate the number of CNC programming partitions and reference hole positions of the wall panel based on the wall panel length, machine tool stroke, and fixed end length of the vacuum adsorption device.

[0034] Step 3: Calculate the number of programming partitions =3, that is, it can be divided into 3 areas. When programming, the tool path trajectory is divided based on the edge of the complete lightening cavity, and the programming origin of each area is set on the reference hole.

[0035] Step 4: Place the wall panel on the machine table, tighten the pressure plate, and drill and bore the reference hole. , , , aperture mm, hole spacing 4000mm.

[0036] Step 5. Place a rubber sealing ring in the sealing groove at the fixed end of the vacuum adsorption tooling according to the size of the wall panel, adjust the placement of the movable supporting feet according to the length of the wall panel, and provide auxiliary support for the part of the wall panel extending out of the vacuum suction cup, with the height being coplanar with the fixed end vacuum adsorption device.

[0037] Step 6. Move the wall panel, straighten and calibrate it using the reference hole, repeat step 5 to clamp it, set the origin, and process each area separately.

[0038] Step 7. Repeat step 6 until all features of the wall panel are processed.

[0039] The advantages of the present invention include that the processing problem of the super-long wall plate of the launch vehicle tank can be solved by using a small CNC gantry milling machine and a small vacuum adsorption device, and the low-cost and high-efficiency machining of the super-long wall plate is realized. The designed "fixed + mobile" vacuum adsorption clamping method realizes the reliability of clamping during the processing; the proposed super-long wall plate processing benchmark conversion method ensures the consistency of the wall plate wall thickness and the accuracy of the relative position relationship of each area.

[0040] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] Those skilled in the art know that, in addition to implementing the system, device and its various modules provided by the present invention in a purely computer-readable program code, it is entirely possible to implement the same program in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers and embedded microcontrollers by logically programming the method steps. Therefore, the system, device and its various modules provided by the present invention can be considered as a hardware component, and the modules included therein for implementing various programs can also be considered as structures within the hardware component; the modules for implementing various functions can also be considered as both software programs for implementing the method and structures within the hardware component.

[0042] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A method for processing launch vehicle tank wall panel parts, characterized in that: include: Select CNC gantry machine tool and fixed vacuum suction cup, and according to the length of the wall panel to be processed , CNC gantry machine tool long axis travel And fixed vacuum cup length dimensions , calculate the number of partitions for NC programming of wall panels and the position of the reference hole; The calculation process of the number of partitions for NC programming of wall panels is as follows: Calculate the number N of vacuum cups included in the distance between the two extreme reference holes of the wall panel part. ,in, is the distance between the reference hole and the edge of the wall plate, then , that is Round up to an integer; The calculation process of the reference hole position is as follows: like , then place the wall panel to be processed on the CNC gantry machine table, press it with a pressure plate, and drill and bore the reference hole. , ,…… ; like , then place the wall panel to be processed on the CNC gantry machine table, drill and bore the reference hole. The specific process is: drilling and boring the reference hole , , , ; Move the wall panel and select the hole , Drill and bore the reference hole ; Move the wall panels one by one and select the holes , Drill and bore the reference hole .

2. The method for processing launch vehicle tank wall panel parts according to claim 1, characterized in that: The last set of reference holes is processed as follows: calculate ,like If it is an integer, move the wall panels in sequence according to the previous steps, and drill and bore the reference holes; like is not an integer, then , that is, round down the integer, before Group base holes by interval Drill and bore the reference holes in sequence; the last set of reference holes , , according to the distance from the other end of the wall plate Start, Interval Drill and bore a set of reference holes , .

3. The method for processing launch vehicle tank wall panel parts according to claim 1, characterized in that: During processing, according to The size of the area is determined by placing a rubber sealing ring in the fixed vacuum suction cup to ensure that the vacuum adsorption area is within the area.

4. The method for processing launch vehicle tank wall panel parts according to claim 1, characterized in that: according to Move the wall panel, straighten and correct it, and set the origin to process each area separately. The specific process is as follows: like is an integer, then the reference hole , or , ...until the last group , Straighten and correct a group of holes and set the origin; like is not an integer, then , that is, round down the integer, before The regions are , or , ...until , For a group of reference holes, set the origin after straightening and correction; for the last area, , As the reference hole, set the origin after straightening and correction.

5. A launch vehicle tank wall panel parts processing system, characterized in that: include: Select CNC gantry machine tool and fixed vacuum suction cup, and according to the length of the wall panel to be processed , CNC gantry machine tool long axis travel And fixed vacuum cup length dimensions , calculate the number of partitions for NC programming of wall panels and the position of the reference hole; The calculation process of the number of partitions for NC programming of wall panels is as follows: Calculate the number N of vacuum cups included in the distance between the two extreme reference holes of the wall panel part. ,in, is the distance between the reference hole and the edge of the wall plate, then , that is Round up to an integer; The calculation process of the reference hole position is as follows: like , then place the wall panel to be processed on the CNC gantry machine table, press it with a pressure plate, and drill and bore the reference hole. , ,…… ; like , then place the wall panel to be processed on the CNC gantry machine table, drill and bore the reference hole. The specific process is: drilling and boring the reference hole , , , ; Move the wall panel and select the hole , Drill and bore the reference hole ; Move the wall panels one by one and select the holes , Drill and bore the reference hole .

6. The launch vehicle tank wall panel parts processing system according to claim 5 is characterized in that: The last set of reference holes is processed as follows: calculate ,like If it is an integer, move the wall panels in sequence according to the previous steps, and drill and bore the reference holes; like is not an integer, then , that is, round down the integer, before Group base holes by interval Drill and bore the reference holes in sequence; the last set of reference holes , , according to the distance from the other end of the wall plate Start, Interval Drill and bore a set of reference holes , .

7. The launch vehicle tank wall panel parts processing system according to claim 5 is characterized in that: During processing, according to The size of the area is determined by placing a rubber sealing ring in the fixed vacuum suction cup to ensure that the vacuum adsorption area is within the area.

8. The launch vehicle tank wall panel parts processing system according to claim 5 is characterized in that: according to Move the wall panel, straighten and correct it, and set the origin to process each area separately. The specific process is as follows: like is an integer, then the reference hole , or , ...until the last group , Straighten and correct a group of holes and set the origin; like is not an integer, then , that is, round down the integer, before The regions are , or , ...until , For a group of reference holes, set the origin after straightening and correction; for the last area, , As the reference hole, set the origin after straightening and correction.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for processing launch vehicle tank wall panel parts described in any one of claims 1 to 4 are implemented.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the computer program is executed by a processor, the steps of the method for processing launch vehicle tank wall panel parts described in any one of claims 1 to 4 are implemented.

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