Horizontal machining method for large marine base

Abstract

The invention discloses a horizontal machining method for a marine large base. The horizontal machining method comprises the steps that S1, a cushion block on the large base is roughly leveled, and the cushion block is fixed to the large base; s2, a machine tool capable of covering the upper surface of the large base is hoisted to the position above the large base, a movable milling cutter capable of being arranged on the horizontal plane is arranged below the machine tool, the heights of the four corners of the machine tool can be adjusted, and the machine tool is located on the horizontal plane by adjusting the heights of the four corners of the machine tool; and S3, the milling cutter is moved on the horizontal plane, the upper ends of all the cushion blocks are cut through the milling cutter, and therefore the heights of the cushion blocks are finely leveled. Horizontal machining is carried out with the large base as a whole, the machining amount of the milling cutter is accurately adjusted through the leveling machine tool, operation is easy, the time cost is saved, and the precision of horizontal machining of the marine large base is further guaranteed. A connecting rod and a dial indicator are further arranged below the machine tool, the descending precision of the machine tool can be guaranteed, and it is guaranteed that the requirement for different levelness degrees of the marine large base is met.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a horizontal processing method for a large ship base. Background Art

[0002] With the advancement of science and technology, the pace of modern shipbuilding is getting faster and faster, and the corresponding equipment and equipment are also constantly updated. Equipment installation must not only be fast but also ensure installation quality. In the process of shipbuilding, many equipment installations have certain requirements for the level of the base. Even considering the deformation of the hull structure after the ship is launched, it is necessary to make a reverse deformation level requirement for the equipment base. There are usually different level requirements on the same large base. In order to meet the requirements of shipbuilding for the level of large bases in the prior art, the large base is usually divided into several small bases, and the level of the small bases is adjusted separately, and then the small bases are assembled into a large base. The existing large base level adjustment method is not only cumbersome and time-consuming, but also has low accuracy. Summary of the invention

[0003] In view of the defects existing in the prior art, the present application provides a method for horizontal processing of a large ship base to solve the technical problems of the prior art of horizontal adjustment of a large ship base, such as complex operation, high time cost and low accuracy.

[0004] In order to achieve the purpose of the above invention, the technical solution provided by the present invention is as follows:

[0005] A method for horizontally processing a large marine base, wherein a plurality of pads are placed on the upper surface of the large base, comprising the following steps:

[0006] S1. Roughly level the pads on the large base so that all the pads are roughly on the same horizontal plane, and fix the pads on the large base;

[0007] S2. Hoist the machine tool above the large base, the machine tool can cover the upper surface of the large base, a milling cutter is arranged under the machine tool, the milling cutter can move on the water surface under the machine tool, and the height of the four corners of the machine tool can be adjusted, and the height of the four corners of the machine tool is adjusted to make the machine tool in a horizontal plane;

[0008] S3. Move the milling cutter on a horizontal plane so that the milling cutter cuts the upper ends of all the pads, thereby fine-adjusting the height of the pads so that the upper surfaces of all the pads are on the same horizontal plane.

[0009] In one embodiment, S1 specifically comprises the following steps:

[0010] S11. Measure the heights of all the cushion blocks with a measuring instrument to determine the height differences between the cushion blocks;

[0011] S12. Taking the highest pad as the reference, place several pads between the other pads and the large base so that the upper surfaces of all pads are roughly at the same level, and re-measure the heights of all pads with a measuring instrument;

[0012] S13. Weld the pad to the large base.

[0013] In one embodiment, liftable supports are disposed at the four corners of the machine tool, and the bottoms of the supports are disposed on the ground.

[0014] In one embodiment, level meters are provided on the four sides of the machine tool to measure the levelness of the four positions of the machine tool.

[0015] In one embodiment, in step S2, after the machine tool is adjusted, the plane on which the milling cutter moves is at the same level as the upper surface of the highest pad.

[0016] In one embodiment, if there is a requirement for levelness of the large base, the following steps are also included:

[0017] S4. If the large base has a requirement for front-to-back levelness, the height difference between the first pad from the bow direction and the first pad from the stern direction is calculated based on the front-to-back levelness requirement; if the large base has a requirement for left-right levelness, the height difference between the first pad from the left side of the ship and the first pad from the stern direction is calculated based on the left-right levelness requirement;

[0018] S5. The machine tool is lowered according to the height difference between the pads in the bow and stern directions or the height difference between the pads in the left and right directions. The milling cutter cuts the upper end of the lowest pad in the design to meet the horizontality requirement of the large base.

[0019] In one embodiment, four vertical connecting rods are arranged under the machine tool, and a dial indicator is arranged at the lower end of the connecting rod. The measuring rod of the dial indicator contacts the upper surface of the pads at the four corners of the large base, and the dial of the dial indicator displays the height of the machine tool descent.

[0020] Compared with the prior art, this application has at least the following beneficial effects:

[0021] In the horizontal processing method of the large-scale marine base of the present invention, firstly, a plurality of gaskets are placed between the gasket and the large-scale base to roughly level the gasket on the large-scale base, thereby ensuring that all the gaskets are roughly level and reducing the workload of subsequent leveling; then, a liftable machine tool is arranged above the large-scale base, and after the machine tool is leveled, the milling cutter under the machine tool is used to cut and process the gasket, thereby finely leveling the gasket on the large-scale base. The present application performs horizontal processing on the large-scale base as a whole, and the processing amount of the milling cutter is precisely adjusted by leveling the machine tool, which is not only simple to operate and saves time and cost, but also ensures the accuracy of horizontal processing of the large-scale marine base. A connecting rod and a dial indicator are also arranged below the machine tool in the present application, which can ensure the accuracy of the machine tool descent and ensure that the requirements for different levels of the large-scale marine base are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of rough leveling of a large base in an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of machine tool leveling in an embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of the height adjustment of the machine tool in the embodiment of the present application.

[0025] Figure numerals: 1. machine tool; 2. level; 3. support; 4. milling cutter; 5. large base; 6. cushion block; 7. connecting rod; 8. dial indicator; 9. gasket; 10. measuring instrument. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0028] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms and should not be understood as indicating or implying relative importance. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0029] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0030] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0031] like Figure 1-3 As shown, the present application provides a method for horizontally processing a large marine base, wherein a plurality of pads are placed on the upper surface of the large base 5, comprising the following steps:

[0032] S1. Roughly level the pads 6 on the large base 5 so that all the pads 6 are roughly in the same horizontal plane, and fix the pads 6 on the large base 5.

[0033] The specific steps include:

[0034] S11, such as Figure 1 As shown, the height of all the spacers 6 is measured with a measuring instrument 10 to determine the height difference between the spacers 6;

[0035] S12, taking the highest pad 6 as a reference, placing a number of pads 9 between the other pads and the large base 5, so that the upper surfaces of all pads 6 are roughly at the same level, and re-measure the heights of all pads 6 with a measuring instrument 10;

[0036] S13, welding the cushion block 6 to the large base 5.

[0037] S2. Hoist the machine tool 1 above the large base 5. The machine tool 1 can cover the upper surface of the large base 5. A milling cutter 4 is arranged under the machine tool 1. The milling cutter 4 can move on the water surface under the machine tool 1. The heights of the four corners of the machine tool 1 can be adjusted. The heights of the four corners of the machine tool 1 are adjusted to make the machine tool 1 in a horizontal plane.

[0038] Adjust the machine tool 1 to a horizontal plane, and the plane where the milling cutter moves under the machine tool 1 will naturally also be on a horizontal plane, in preparation for subsequent fine leveling. Figure 2 As shown, liftable supports 3 are provided at the four corners of the machine tool 1, and the bottom of the supports 3 is provided on the ground. In order to ensure the leveling accuracy of the machine tool 1, level gauges 2 are provided on the four sides of the machine tool 1 to measure the levelness of the four directions of the machine tool 1. In this embodiment, after the machine tool 1 is adjusted, the plane on which the milling cutter moves is at the same level as the upper surface of the highest pad 6.

[0039] S3. Move the milling cutter 4 on a horizontal plane to make the milling cutter 4 cut the upper ends of all the cushion blocks 6, thereby finely adjusting the height of the cushion blocks 6 so that the upper surfaces of all the cushion blocks 6 are on the same horizontal plane.

[0040] If the large base has a horizontal requirement, the following steps are also included:

[0041] S4. If the large base has a requirement for front-to-back levelness, the height difference between the first pad from the bow direction and the first pad from the stern direction is calculated based on the front-to-back levelness requirement; if the large base has a requirement for left-right levelness, the height difference between the first pad from the left side of the ship and the first pad from the stern direction is calculated based on the left-right levelness requirement;

[0042] S5. The machine tool 1 is lowered according to the height difference between the pads in the fore and stern directions or the height difference between the pads in the left and right directions, and the milling cutter 4 cuts the upper end of the lowest pad 6 in the design to meet the horizontality requirement of the large base.

[0043] like Figure 3 As shown, in order to ensure the accuracy of the descent of the machine tool 1, four vertical connecting rods 7 are arranged below the machine tool 1, and a dial indicator 8 is arranged at the lower end of the connecting rod 7. The measuring rod of the dial indicator 8 is in contact with the upper surface of the pad 6 at the four corners of the large base 5, and the dial of the dial indicator 8 displays the descent height of the machine tool 1.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for horizontally processing a large marine base, wherein a plurality of pads are placed on the upper surface of the large base, characterized in that: The following steps are involved: S1. Roughly level the pads on the large base so that all the pads are roughly on the same horizontal plane, and fix the pads on the large base; S2. Hoist the machine tool above the large base, the machine tool can cover the upper surface of the large base, a milling cutter is arranged under the machine tool, the milling cutter can move on the water surface under the machine tool, and the height of the four corners of the machine tool can be adjusted, and the height of the four corners of the machine tool is adjusted to make the machine tool in a horizontal plane; S3. Move the milling cutter on a horizontal plane so that the milling cutter cuts the upper ends of all the pads, thereby fine-adjusting the height of the pads so that the upper surfaces of all the pads are on the same horizontal plane.

2. The horizontal processing method of a large marine base according to claim 1, characterized in that: S1 specifically includes the following steps: S11. Measure the heights of all the cushion blocks with a measuring instrument to determine the height differences between the cushion blocks; S12. Taking the highest pad as the reference, place several pads between the other pads and the large base so that the upper surfaces of all pads are roughly at the same level, and re-measure the heights of all pads with a measuring instrument; S13. Weld the pad to the large base.

3. The horizontal processing method of a large marine base according to claim 1, characterized in that: The four corners of the machine tool are all provided with liftable supports, and the bottoms of the supports are arranged on the ground.

4. The horizontal processing method of a large marine base according to claim 1, characterized in that: Level meters are arranged on the four sides of the machine tool to measure the levelness of the four directions of the machine tool.

5. The horizontal processing method of a large marine base according to claim 1, characterized in that: In step S2, after the machine tool is adjusted, the plane on which the milling cutter moves is at the same level as the upper surface of the highest pad.

6. The horizontal processing method of a large marine base according to claim 1, characterized in that: If the large base has a horizontal requirement, the following steps are also included: S4. If the large foundation has a requirement for front and rear levelness, the height difference between the first pad from the bow direction and the first pad from the stern direction shall be calculated according to the requirement for front and rear levelness; If the large foundation has a requirement for left-right levelness, the height difference between the first pad from the left side of the ship and the first pad from the stern of the ship shall be calculated based on the left-right levelness requirement; S5. The machine tool is lowered according to the height difference between the pads in the bow and stern directions or the height difference between the pads in the left and right directions. The milling cutter cuts the upper end of the lowest pad in the design to meet the horizontality requirement of the large base.

7. The horizontal processing method of a large marine base according to claim 6, characterized in that: Four vertical connecting rods are arranged below the machine tool, and a dial indicator is arranged at the lower end of the connecting rod. The measuring rod of the dial indicator contacts the upper surface of the pads at the four corners of the large base, and the dial of the dial indicator displays the height of the machine tool descent.

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