Patch cutting device for insulating layer of storage cabin for LNG (Liquefied Natural Gas) ship

Abstract

The utility model discloses an LNG (liquefied natural gas) ship storage cabin insulating layer patch cutting device which comprises a cutting platform, a sliding table saw and a positioning tool block, the sliding table saw and the positioning tool block are arranged on the cutting platform, two bolt pieces are arranged on the cutting platform, two kidney-shaped holes are formed in the positioning tool block, the two bolt pieces longitudinally penetrate through the two kidney-shaped holes respectively, and the two kidney-shaped holes are communicated with the sliding table saw. The two bolt pieces are used for fixing the positioning tool block, a positioning opening groove is formed in the positioning side of the positioning tool block, the positioning opening groove is matched with a plywood to be cut and used for positioning the plywood to be cut, two vertical clamps are arranged on the positioning tool block, and the two vertical clamps are matched with the plywood to be cut and used for clamping the plywood to be cut. And the two vertical clamps are used for fixing the plywood to be cut. The special cutting device is adopted to replace a CNC (computer numerical control) cutting mode, the cutting precision of plywood is ensured, the cutting quality of patches is ensured, the whole cutting operation is simple and efficient, the cutting time is saved, and the cutting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquefied natural gas field relates to the preparation technology of LNG ship storage cabin insulating layer, concretely relates to a kind of patch cutting device of LNG ship storage cabin insulating layer. BACKGROUND

[0002] LNG (liquefied natural gas) ship is the special ship for storing and transporting liquefied natural gas, and it stores liquefied natural gas through established storage cabin. Due to the particularity of liquefied natural gas, the storage cabin must have high insulation, fire resistance, low temperature resistance, sealing and other properties. The insulating layer is an important module of the storage cabin. The insulating layer is composed of multiple insulating boards. Due to the specific structure of the insulating layer, some places in the splicing need to use triangular plywood as a patch to fill the gap. Due to the characteristics of the above-mentioned storage cabin, the size and precision of the triangular plywood are required very high.

[0003] The existing patch acquisition method is to send a square plywood into a CNC machining center for cutting. A saw blade is installed on the CNC spindle. The plywood is adsorbed by increasing the space. The cutting program is edited and cut. The square plywood is cut into two triangular plywood. The problem is that:

[0004] 1. Due to the small size of the plywood, the adsorption stability is poor, which leads to deviation of the position of the plywood, and the cutting precision cannot be guaranteed, so it is difficult to ensure the cutting precision of the patch.

[0005] 2. The CNC cutting method is complicated and time-consuming, which reduces the cutting efficiency. SUMMARY

[0006] The purpose of the application is to overcome the shortcomings of the prior art and provide a patch cutting device for the insulating layer of the storage cabin of the LNG ship, which can realize high-precision and high-efficiency cutting of the plywood and improve the cutting efficiency and precision of the patch.

[0007] Technical scheme: To achieve the above-mentioned purpose, the utility model provides a patch cutting device for the insulating layer of the storage cabin of the LNG ship, which comprises a cutting platform, a push table saw arranged on the cutting platform and a positioning tool block. Two bolts are arranged on the cutting platform. Two waist-shaped holes are arranged on the positioning tool block. Two bolts are longitudinally arranged through two waist-shaped holes. Two bolts are used to fix the positioning tool block. A positioning opening groove is arranged on the positioning side of the positioning tool block. The positioning opening groove is matched with the plywood to be cut. The positioning opening groove is used to position the plywood to be cut. Two vertical clamps are arranged on the positioning tool block. Two vertical clamps are used to fix the plywood to be cut.

[0008] Furthermore, the opening angle of the positioning slot is 90 degrees.

[0009] Furthermore, the inner end of the positioning opening groove is provided with a wear-resistant groove, which is used to accommodate the corner of the plywood and prevent the corner of the plywood from being worn.

[0010] Furthermore, two waist-shaped holes are symmetrically arranged on the positioning fixture block.

[0011] Furthermore, two vertical clamps are symmetrically arranged on the positioning fixture block.

[0012] Furthermore, the wear-resistant groove is a circular groove structure.

[0013] Furthermore, the diameter of the bolt head of the bolt is greater than the width of the oblong hole.

[0014] Beneficial effects: Compared with the prior art, this utility model uses a specific cutting device to replace the CNC numerical control cutting method. The positioning slot can be used to position the plywood at an angle, and the matching structure of the waist-shaped hole and bolt can adjust the cutting water level of the plywood, ensuring the cutting accuracy of the plywood and guaranteeing the cutting quality of the patch. Moreover, the whole cutting operation is simple and efficient, saving cutting time and improving cutting efficiency. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0016] Fig. 2 A schematic diagram of the planar structure of the positioning tooling block;

[0017] Fig. 3 This is a schematic diagram illustrating the function of a vertical clamp. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0019] like Figs. 1-3As shown, this utility model provides a patch cutting device for the insulation layer of an LNG marine storage tank, including a cutting platform 1, a sliding table saw 3 mounted on the cutting platform 1, and a positioning fixture block 2. Two bolts 6 are symmetrically arranged on the cutting platform 1, and the bolts 6 are threaded together on the cutting platform 1. Two oblong holes 5 are symmetrically arranged on the positioning fixture block 2, and the two bolts 6 pass longitudinally through the two oblong holes 5 respectively. The diameter of the bolt head of the bolt 6 is larger than the width of the oblong hole 5. The two bolts 6 are used to fix the positioning fixture block 2 in place. The positioning fixture block 2 has a positioning opening slot 7 on the positioning side facing the cutting track of the sliding table saw 3. The opening angle of the positioning opening slot 7 is 90 degrees. The positioning opening slot 7 matches the plywood 8 to be cut. The inner end of the positioning opening slot 7 has a wear-resistant groove 9. The wear-resistant groove 9 is a circular groove structure. The wear-resistant groove 9 is used to accommodate the corner end of the plywood 8 to be cut, so as to avoid continuous wear of the corner end of the plywood 8 to be cut due to the cutting force. Two vertical clamps 4 are symmetrically arranged on the positioning fixture block 2. The two vertical clamps 4 are used to fix the plywood 8 to be cut.

[0020] In this embodiment, the patch cutting device is used for patch cutting of the insulation layer of LNG ship storage tanks. Specifically, it is necessary to cut the square plywood 8 to be cut into two equilateral triangular plywoods. The specific operation process is as follows:

[0021] First, cut the plywood 8 according to... Fig. 1 The positioning fixture 2 is placed on the positioning slot 7 of the positioning fixture 2. Then, the horizontal position of the positioning fixture 2 is adjusted through the two oblong holes 5 so that the center line of the plywood 8 to be cut is on the cutting trajectory of the table saw 3. Then, the two bolts 6 are tightened to fix the positioning fixture 2. Next, the plywood 8 to be cut is fixed by the two vertical clamps 4. Then, the motor is started and the table saw 3 cuts the plywood 8 to be cut into two equilateral triangles, completing the patch cutting.

[0022] As can be seen from the above process, the entire operation is very simple, quick, and efficient, with excellent cutting efficiency. It also provides excellent and stable positioning and fixing for the plywood 8 to be cut, ensuring cutting accuracy and guaranteeing the patch cutting effect.

Claims

1. A patch cutting device for the insulation layer of an LNG marine storage tank, characterized in that, The device includes a cutting platform, a sliding table saw mounted on the cutting platform, and a positioning fixture block. The cutting platform has two bolts, and the positioning fixture block has two oblong holes. The two bolts pass longitudinally through the two oblong holes and are used to fix the positioning fixture block. The positioning fixture block has a positioning opening slot on its positioning side, which matches the plywood to be cut and is used to position the plywood. The positioning fixture block also has two vertical clamps for fixing the plywood to be cut.

2. The patch cutting device for the insulation layer of an LNG ship storage tank according to claim 1, characterized in that, The opening angle of the positioning slot is 90 degrees.

3. The patch cutting device for the insulation layer of an LNG ship storage tank according to claim 1, characterized in that, The inner end of the positioning opening slot is provided with a wear-resistant groove, which is used to accommodate the corner of the plywood and prevent the corner of the plywood from being worn.

4. The patch cutting device for the insulation layer of an LNG ship storage tank according to claim 1, characterized in that, Two waist-shaped holes are symmetrically arranged on the positioning fixture block.

5. A patch cutting device for the insulation layer of an LNG ship storage tank according to claim 1, characterized in that, Two vertical clamps are symmetrically arranged on the positioning fixture block.

6. A patch cutting device for the insulation layer of an LNG ship storage tank according to claim 3, characterized in that, The wear-resistant groove is a circular groove structure.

7. A patch cutting device for the insulation layer of an LNG ship storage tank according to claim 1, characterized in that, The diameter of the bolt head of the bolt is greater than the width of the oblong hole.

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