A cutting method for producing a tubular heat exchanger

Abstract

A cutting method for producing tubular heat exchangers. Most existing cutting devices cannot perform stable clamping, and the stability of the material to be cut is poor, which affects the cutting effect. The present invention includes the following steps: first, the tube body is placed on the cutting station of the device, and the tube body is clamped and fixed on the surface of the workbench by the left clamping structure and the right clamping structure, and the switch of the cutting motor is started. The cutting blade rotates at high speed under the drive of the cutting motor, and moves under the action of the second cylinder, so that the high-speed rotating cutting blade cuts the tube body. When the cutting blade cuts the tube body, it needs to spray water to cool it down. The present invention is used for cutting in the production of tubular heat exchangers.

Description

Technical Field

[0001] The invention relates to the field of cutting devices, in particular to a cutting method for producing a tubular heat exchanger. Background Art

[0002] The tubular heat exchanger is the most typical partition-wall heat exchanger. It has a long history of industrial application and still occupies a dominant position among all heat exchangers. The tubular heat exchanger is mainly composed of a shell, a tube bundle, a tube sheet and a head. The shell is mostly circular, with parallel tube bundles inside, and both ends of the tube bundle are fixed to the tube sheet.

[0003] During the reproduction process of tubular heaters, the heat exchange tubes need to be cut. However, most existing cutting devices cannot perform stable clamping, and the stability of the material to be cut is poor, which affects the cutting effect. Summary of the invention

[0004] The object of the present invention is to provide a cutting method for producing a tubular heat exchanger to solve the defects mentioned in the above background technology.

[0005] The above purpose is achieved through the following technical solutions: A cutting method for producing a tubular heat exchanger, the method comprising the following steps: (1) First, place the pipe body on the cutting station of the device. The pipe body is clamped and fixed on the surface of the workbench by the left clamping structure and the right clamping structure. The external switch of the first cylinder is started, and the piston rod of the first cylinder moves downward, and moves downward through the transmission plate and the lower pressure column, driving the clamping plate downward to clamp the pipe body. (2) Turn on the switch of the cutting motor. The cutting blade rotates at high speed under the drive of the cutting motor and moves under the action of the second cylinder, so that the high-speed rotating cutting blade cuts the pipe body. When the cutting blade cuts the pipe body, it needs to spray water to cool it down. (3) When the movable table moves driven by the second cylinder, guide columns are inserted into the limit blocks on both sides of the movable table to limit and guide the movable table during movement, so that the cutting blade can accurately cut the tube body 3.

[0006] The cutting method for producing a tubular heat exchanger is described, wherein the workbench is supported by supporting feet at the bottom, a left clamping structure is installed on one side of the workbench surface, and a right clamping structure is installed on the other side of the workbench surface, a pipe body is placed on the workbench, a cutting structure is installed on the workbench surface, and the pipe body is clamped and fixed on the surface of the workbench by the left clamping structure and the right clamping structure; The bottom of the fixed platform on the left clamping structure is welded to the surface of the workbench, the top of the fixed platform is welded and fixed to the work frame, and the middle part of the work frame is installed with a first cylinder by bolts, the piston rod of the first cylinder is fixedly connected to the bottom of the transmission plate, and a clamping plate is provided for the lifting of the fixed platform.

[0007] In the cutting method for producing a tubular heat exchanger, the left clamping structure and the right clamping structure have the same composition structure, and the left clamping structure and the right clamping structure are symmetrical structures with respect to the normal line of the workbench.

[0008] The cutting method for producing a tubular heat exchanger, the left clamping structure includes a clamping plate and a lower pressure column, the upper surface of the clamping plate is welded and fixed to the lower pressure column, and the end of the lower pressure column away from the clamping plate passes through the working frame and is screwed and assembled with the bottom of the transmission plate.

[0009] In the cutting method for producing a tubular heat exchanger, both sides of the bottom of the transmission plate are welded with limiting columns, and the limiting columns are inserted into limiting holes opened inside the working frame, and the limiting columns are arranged parallel to the lower pressure columns.

[0010] The cutting method for producing a tubular heat exchanger, the cutting structure includes a movable table, the movable table is a transverse movable structure on the upper surface of the workbench, and a cutting motor is installed on the movable table through a machine base, and the output shaft of the cutting motor is fixedly connected to the cutting blade, and a protective cover is installed on the outer side of the cutting blade.

[0011] The cutting method for producing a tubular heat exchanger is described, wherein the end of the movable table is fixedly connected to the piston rod of the second cylinder, the second cylinder is installed on the workbench through a fixed seat, both ends of the movable table are welded with limit blocks, the limit blocks are internally inserted with guide columns, and the guide columns are fixedly installed on the surface of the workbench. Beneficial Effects

[0012] 1. The present invention places the pipe body on the cutting station of the device, and after clamping it through the left clamping structure and the right clamping structure, the cutting motor drives the cutting blade to rotate at high speed to cut the pipe body. When the pipe body is cut, it is clamped and fixed by the left clamping structure and the right clamping structure to maintain the stability during cutting and improve the accuracy of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the working of the structure cutting structure of the present invention; Figure 3 It is a side view of the left clamping structure and the right clamping structure of the structure of the present invention; Figure 4 The structure of the present invention Figure 1 Side view of Numbers in the figure: 1. workbench; 2. left clamping structure; 21. fixed table; 22. clamping plate; 23. pressure column; 24. work frame; 25. transmission plate; 26. limit column; 27. first cylinder; 3. tube body; 4. right clamping structure; 5. cutting structure; 51. guide column; 52. limit block; 53. movable table; 54. cutting disc; 55. second cylinder; 56. cutting motor. DETAILED DESCRIPTION

[0014] See also Figure 1-4 , a cutting method for producing a tubular heat exchanger, the method comprising the following steps: (1) First, place the pipe body on the cutting station of the device. The pipe body is clamped and fixed on the surface of the workbench by the left clamping structure and the right clamping structure. The external switch of the first cylinder is started, and the piston rod of the first cylinder moves downward, and moves downward through the transmission plate and the lower pressure column, driving the clamping plate downward to clamp the pipe body. (2) Turn on the switch of the cutting motor. The cutting blade rotates at high speed under the drive of the cutting motor and moves under the action of the second cylinder, so that the high-speed rotating cutting blade cuts the pipe body. When the cutting blade cuts the pipe body, it needs to spray water to cool it down. (3) When the movable table moves driven by the second cylinder, guide columns are inserted into the limit blocks on both sides of the movable table to limit and guide the movable table during movement, so that the cutting blade can accurately cut the tube body 3.

[0015] The present invention provides a cutting method for producing a tubular heat exchanger, comprising: a workbench 1; The workbench 1 is supported by supporting feet at the bottom, and a left clamping structure 2 is installed on one side of the surface of the workbench 1, and a right clamping structure 4 is installed on the other side of the surface of the workbench 1. A pipe body 3 is placed on the workbench 1, and a cutting structure 5 is installed on the surface of the workbench 1. The pipe body 3 is clamped and fixed on the surface of the workbench 1 by the left clamping structure 2 and the right clamping structure 4; The left side clamping structure 2, the bottom of the fixed platform 21 on the left side clamping structure 2 is welded to the surface of the workbench 1, and the top of the fixed platform 21 is welded and fixed to the work frame 24, and at the same time, the middle part of the work frame 24 is installed with a first cylinder 27 by bolts, and the piston rod of the first cylinder 27 is fixedly connected to the bottom of the transmission plate 25, and the lifting of the fixed platform 21 is provided with a clamping plate 22.

[0016] Working principle: When in use, first place the tube body 3 on the cutting station of the device, and after clamping it through the left clamping structure 2 and the right clamping structure 4, start the switch of the cutting motor 56, the cutting motor 56 drives the cutting blade 54 to rotate at high speed, and under the push of the second cylinder 55, the tube body 3 is cut. When the tube body 3 is cut, it is clamped and fixed by the left clamping structure 2 and the right clamping structure 4 to maintain stability during cutting and improve accuracy during cutting.

[0017] The left clamping structure 2 and the right clamping structure 4 have the same composition structure, and the left clamping structure 2 and the right clamping structure 4 are symmetrical structures with respect to the normal line of the workbench 1 .

[0018] like Figure 1 As shown: before cutting the tube body 3, it is first necessary to use the left clamping structure 2 and the right clamping structure 4 to clamp and fix it to maintain stability during cutting and improve the accuracy of cutting.

[0019] The left side clamping structure 2 includes a fixed platform 21, a clamping plate 22, a lower pressure column 23, a working frame 24, a transmission plate 25, a limit column 26 and a first cylinder 27, and the upper surface of the clamping plate 22 is welded and fixed to the lower pressure column 23, and the end of the lower pressure column 23 away from the clamping plate 22 passes through the working frame 24 and is screwed and assembled with the bottom of the transmission plate 25.

[0020] The working modes of the left clamping structure 2 and the right clamping structure 4 are the same, and only the working mode of the left clamping structure 2 is described here: Figure 1 and Figure 3-4 As shown: the tube body 3 is placed on the fixed platform 21, and the external switch of the first cylinder 27 is started. The piston rod of the first cylinder 27 moves downward, and moves downward through the transmission plate 25 and the lower pressure column 23, driving the clamping plate 22 downward to clamp the tube body 3.

[0021] Limiting columns 26 are welded on both sides of the bottom of the transmission plate 25 , and the limiting columns 26 are inserted into limiting holes opened inside the working frame 24 . The limiting columns 26 are arranged parallel to the pressing columns 23 .

[0022] like Figure 3 As shown, when the transmission plate 25 is lifted or lowered, the limiting posts 26 thereon are inserted into the limiting holes provided inside the working frame 24, so as to limit and guide the transmission plate 25 during the lifting or lowering, thereby preventing the transmission plate 25 from tilting during the lifting or lowering.

[0023] The cutting structure 5 includes a guide column 51, a limit block 52, a movable table 53, a cutting blade 54, a second cylinder 55 and a cutting motor 56, and the movable table 53 is a transverse movable structure on the upper surface of the workbench 1. At the same time, a cutting motor 56 is installed on the movable table 53 through a machine base, and the output shaft of the cutting motor 56 is fixedly connected to the cutting blade 54, and a protective cover is installed on the outer side of the cutting blade 54.

[0024] like Figure 1 As shown: the working mode of the cutting structure 5 is: the cutting blade 54 rotates at a high speed under the drive of the cutting motor 56, and moves under the action of the second cylinder 55, so that the high-speed rotating cutting blade 54 cuts the tube body 3. When the cutting blade 54 cuts the tube body 3, it needs to be sprayed with water to cool it down.

[0025] The end of the movable platform 53 is fixedly connected to the piston rod of the second cylinder 55, and the second cylinder 55 is installed on the workbench 1 through a fixed seat. At the same time, limit blocks 52 are welded at both ends of the movable platform 53, and a guide column 51 is inserted inside the limit block 52, and the guide column 51 is fixedly installed on the surface of the workbench 1.

[0026] like Figure 1 As shown, when the movable platform 53 is moved driven by the second cylinder 55, guide pillars 51 are inserted into the limiting blocks 52 on both sides thereof, which can limit and guide the movable platform 53 during movement, so that the cutting blade 54 can accurately cut the tube body 3.

Claims

1. A cutting method for producing a tubular heat exchanger, characterized in that: The method comprises the following steps: (1) First, place the pipe body on the cutting station of the device. The pipe body is clamped and fixed on the surface of the workbench by the left clamping structure and the right clamping structure. The external switch of the first cylinder is started, and the piston rod of the first cylinder moves downward, and moves downward through the transmission plate and the lower pressure column, driving the clamping plate downward to clamp the pipe body. (2) Turn on the switch of the cutting motor. The cutting blade rotates at high speed under the drive of the cutting motor and moves under the action of the second cylinder, so that the high-speed rotating cutting blade cuts the pipe body. When the cutting blade cuts the pipe body, it needs to spray water to cool it down. (3) When the movable table moves driven by the second cylinder, guide columns are inserted into the limit blocks on both sides of the movable table to limit and guide the movable table during movement, so that the cutting blade can accurately cut the tube body 3.

2. A cutting method for producing a tubular heat exchanger according to claim 1, characterized in that: The workbench is supported by supporting feet at the bottom, a left clamping structure is installed on one side of the workbench surface, and a right clamping structure is installed on the other side of the workbench surface. A pipe body is placed on the workbench, and a cutting structure is installed on the workbench surface. The pipe body is clamped and fixed on the surface of the workbench by the left clamping structure and the right clamping structure. The bottom of the fixed platform on the left clamping structure is welded to the surface of the workbench, the top of the fixed platform is welded and fixed to the work frame, and the middle part of the work frame is installed with a first cylinder by bolts, the piston rod of the first cylinder is fixedly connected to the bottom of the transmission plate, and a clamping plate is provided for the lifting of the fixed platform.

3. A cutting method for producing a tubular heat exchanger according to claim 2, characterized in that: The left clamping structure and the right clamping structure have the same composition structure, and the left clamping structure and the right clamping structure are symmetrical structures with respect to the normal line of the workbench.

4. A cutting method for producing a tubular heat exchanger according to claim 3, characterized in that: The left clamping structure comprises a clamping plate and a lower pressure column. The upper surface of the clamping plate is welded and fixed to the lower pressure column. One end of the lower pressure column away from the clamping plate passes through the working frame and is screwed and assembled with the bottom of the transmission plate.

5. A cutting method for producing a tubular heat exchanger according to claim 4, characterized in that: Limiting columns are welded on both sides of the bottom of the transmission plate, and the limiting columns are inserted into limiting holes opened inside the working frame, and the limiting columns are arranged in parallel with the pressing columns.

6. A cutting method for producing a tubular heat exchanger according to claim 5, characterized in that: The cutting structure includes a movable table, which is a transverse movable structure on the upper surface of the workbench. A cutting motor is installed on the movable table through a machine base, and the output shaft of the cutting motor is fixedly connected to the cutting blade. A protective cover is installed on the outer side of the cutting blade.

7. A cutting method for producing a tubular heat exchanger according to claim 6, characterized in that: The end of the movable platform is fixedly connected to the piston rod of the second cylinder, and the second cylinder is installed on the workbench through a fixed seat. Limit blocks are welded at both ends of the movable platform, and guide columns are inserted inside the limit blocks. The guide columns are fixedly installed on the surface of the workbench.

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