Pipe laser cutting tool

Abstract

The utility model discloses a pipe laser cutting tool which comprises a whole pipe cutting assembly and a half pipe cutting assembly. The whole pipe cutting assembly comprises a bottom plate, a plurality of first limiting strips are evenly distributed on the bottom plate at intervals, the space between the first limiting strips is used for containing a whole pipe, the height of the first limiting strips is slightly smaller than the outer diameter of the pipe, and the pipe is placed in the space between the first limiting strips and the second limiting strips and then fixed through a pressing plate. The pressing plates are fixed to the first limiting strip through pressing plate screws, the width of the pressing plates is larger than that of the first limiting strip, the two edges, extending to the outer side of the first limiting strip, of the pressing plates are used for pressing pipes, and gaps are reserved between the adjacent pressing plates in the same row and are laser cutting gaps. A first limiting strip of the whole pipe cutting assembly is replaced with a second limiting strip, namely the half pipe cutting assembly is formed, the height of the second limiting strip is slightly smaller than half of the outer diameter of a half pipe, and the width of the second limiting strip is the same as that of the first limiting strip.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe processing and relates to a pipe laser cutting tool. Background Art

[0002] In order to evenly (90°) split the slender seamless pipe into 4 pieces along the center line, the EDM wire cutting method is often used. Due to the limitations of the structure of the EDM wire cutting equipment, if the length exceeds the processing range of the equipment, it is necessary to cut the pipe in sections along the pipe axis multiple times. Multiple clamping will cause error accumulation, resulting in extremely low part yield. The production cost rises sharply when processing high-value materials. The EDM wire cutting process takes a long time, and only one pipe can be processed per clamping, resulting in low production efficiency. In order to improve the processing accuracy of parts, reduce production costs and improve production efficiency, it is urgent to develop a tooling fixture combined with laser cutting technology. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide a laser cutting tool for slender seamless pipes with high processing accuracy and high efficiency.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A tube laser cutting tool, comprising a whole tube cutting component and a half tube cutting component;

[0006] The whole tube cutting assembly includes a bottom plate, and a plurality of limit strips 1 are evenly spaced at the parts on the bottom plate. The limit strips 1 are fixed on the bottom plate, and the space between the limit strips 1 and the limit strips 1 is used to place the whole tube. The height of the limit strips 1 is slightly smaller than the outer diameter of the tube. The tube is placed in the space between the limit strips 1 and the limit strips 1 and then fixed with a pressing plate. The pressing plate is fixed on the limit strip 1 by a pressing plate screw. The width of the pressing plate is greater than the width of the limit strip 1. The pressing plate is located in the middle of the limit strip 1. The pressing plate extends to the two edges outside the limit strip 1 to press the tube. A gap is left between adjacent pressing plates in the same row, and this gap is the cutting gap of the laser.

[0007] Replacing the limit strip 1 of the whole tube cutting assembly with the limit strip 2 is a half tube cutting assembly. The height of the limit strip 2 is slightly lower than half of the outer diameter of the half tube, and the width of the limit strip 2 is the same as that of the limit strip 1.

[0008] Furthermore, the length direction of the limit strip 1 is the same as that of the base plate. The limit strip 1 is fixed to the base plate by a limit strip screw. The pressure plate is located above the limit strip 1. A through hole 1 that cooperates with the limit strip screw is opened in the middle of the pressure plate. The limit strip screw passes through the pressure plate and the limit strip 1 in sequence and then extends to the base plate to cooperate with the corresponding threaded holes on the base plate to fix the limit strip 1.

[0009] Furthermore, two pressing plate through holes are symmetrically opened at the front and rear of the pressing plate, and the pressing plate screws pass through the corresponding pressing plate through holes from the top of the pressing plate and then cooperate with the corresponding threaded holes on the limiting strip.

[0010] Furthermore, the pressing plates are arranged in a plurality of rows in the length direction of the limiting strips according to requirements, and each row is arranged with an interval.

[0011] Furthermore, a groove is opened on the bottom plate at one end of the limit strip, the groove is perpendicular to the limit strip, the groove extends along the width direction of the bottom plate, and a positioning pin is fixed on the bottom plate on the side of the groove away from the limit strip. The positioning pin is located between the two limit strips and cooperates with the pipe.

[0012] Furthermore, the side portion of the groove close to the end of the limiting strip one is flush with the end portion of the limiting strip one.

[0013] The beneficial effects of the utility model are:

[0014] The utility model realizes high-precision and high-efficiency cutting tooling for pipes, changes the installation form of pipes, and breaks through the size limitation of electric spark wire cutting equipment. According to the size of the laser cutting equipment platform, the pipe and the tooling are installed on the equipment platform as a whole, and after the tool is aligned, the pipe is processed and formed in one step along the axis of the pipe. The number of clamping times is reduced, and the number of workpieces that can be processed in one clamping is increased, which improves the processing accuracy and production efficiency at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0016] Figure 1 It is a partial structural schematic diagram of the whole tube cutting assembly according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the whole pipe cutting assembly after cutting at 0° position according to an embodiment of the utility model;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the whole pipe cutting assembly after cutting at 180° according to an embodiment of the utility model;

[0020] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0021] Figure 6It is a partial structural schematic diagram of the half-pipe cutting assembly according to an embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the half-tube cutting assembly after cutting the half-tube according to the embodiment of the utility model;

[0023] Figure 8 for Figure 7 Enlarged schematic diagram of point C in the middle.

[0024] Description of reference numerals:

[0025] 1. Bottom plate; 101. Groove; 2. Pipe; 201. Pin positioning hole; 2', half pipe; 3. Limit strip one; 4. Press plate; 401. Through hole one; 402. Press plate through hole; 5. Positioning pin; 6. Press plate screw; 7. Limit strip screw; 8. Limit strip two. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] As shown in the figure, a tube laser cutting tool includes a whole tube cutting component and a half tube cutting component.

[0031] The whole pipe cutting assembly includes a base plate 1, and a plurality of limit strips 3 are evenly spaced apart on the base plate 1. The length direction of the limit strips 3 is the same as that of the base plate 1, and the limit strips 3 are fixed to the base plate 1 by limit strip screws 7. The space between the limit strips 3 is used to place the whole pipe 2, and the height of the limit strips 3 is slightly smaller than the outer diameter of the pipe 2. The pipe 2 is placed in the space between the limit strips 3 and the limit strips 3 and then fixed by a pressing plate 4. The pressing plate 4 is located above the limit strips 3, and a through hole 401 is opened in the middle of the pressing plate 4 to match the limit strip screw 7. The limit strip screw 7 passes through the pressing plate 4 and the limit strip 3 in turn and then extends into the base plate 1 to match the corresponding threaded hole on the base plate 1 to fix the limit strip 3.

[0032] The pressure plate 4 has two symmetrical pressure plate through holes 402, and the pressure plate screw 6 passes through the corresponding pressure plate through holes 402 from the top of the pressure plate 4 and matches with the corresponding threaded holes on the limit strip 3. The width of the pressure plate 4 is greater than the width of the limit strip 3, and the pressure plate 4 is located in the middle of the limit strip 3. The two edges of the pressure plate 4 extending to the outside of the limit strip 3 are used to press the pipe 2. The pressure plates 4 are arranged in several rows along the length direction of the limit strip according to the needs, and each row is arranged at intervals. There is a gap between adjacent pressure plates 4 in the same row, and this gap is the cutting gap of the laser.

[0033] A groove 101 is formed on the bottom plate 1 at the end of the limit strip 3, and the groove 101 is perpendicular to the limit strip 3 and extends along the width direction of the bottom plate 1. The side of the groove 101 close to one end of the limit strip 3 is flush with the end of the limit strip 3. A positioning pin 5 is fixed on the bottom plate 1 on the side of the groove 101 away from the limit strip 3. The positioning pin 5 is located between the two limit strips 3 and cooperates with the pipe 2. During processing, the end of the pipe 2 is pressed against the positioning pin 5.

[0034] The groove 101 is used for cutting the end of the pipe 2 .

[0035] The difference between the half-tube cutting assembly and the full-tube cutting assembly is that the half-tube cutting assembly adopts a limiting strip 2 8. After the tube 2 is divided into two, the height of the half tube 2' is reduced after being placed on the bottom plate 1. Therefore, the limiting strip 1 3 in the full-tube cutting assembly is replaced with a limiting strip 2 8 to realize the half-tube cutting assembly. The height of the limiting strip 2 8 is slightly lower than half of the outer diameter of the half tube 2'.

[0036] The working principle of this utility model:

[0037] According to the size of the processed pipe 2 and the platform size of the laser cutting machine, a full pipe cutting component and a half pipe cutting component were designed after decomposing the processing technology.

[0038] First, when the whole pipe 2 is cut at the 0° position, the whole pipe cutting assembly is used to place a plurality of pipes 2 in batches into the space surrounded by the bottom plate 1 and the limit strip 3, one end of the pipe 2 is pressed against the positioning pin 5, and then the pipe 2 is pressed with the pressing plate 4. Then the laser cutting machine is used to complete the knife alignment and cut out the first slit and the pin positioning hole 201 (such as Figure 2 , 3 shown).

[0039] Second, turn the tube 2 180° and cut the entire tube 2 at 180°. At this time, use the whole tube cutting assembly to place multiple 0° cut tubes 2 in the space surrounded by the bottom plate 1 and the limit strip 3. Insert the positioning pin 5 into the pin positioning hole 201 cut by the tube 2, and then press the tube 2 with the pressing plate 4. Then use the laser cutting machine to complete the knife alignment and cut the second slit and then cut off the excess at both ends (such as Figure 4 , 5 ).

[0040] Third, perform the overall cutting of the half pipe 2' using the half pipe cutting assembly. Place multiple half pipes 2' in batches in the space surrounded by the bottom plate 1 and the limit strip 8, with the cut of the half pipe 2' facing downward, one end of the half pipe 2' against the positioning pin 5, and then use the pressing plate 4 to press the half pipe 2'. Then use the laser cutting machine to complete the knife alignment and cut the half pipe 2', and then cut off the excess at both ends (such as Figure 7 , 8 ) to obtain the required high-precision parts.

[0041] Therefore, the utility model realizes that the 0° position slitting of the pipe 2 is completed in batches by using the whole pipe tooling, and the 180° position slitting of the pipe 2 is completed in batches again, and the excess at both ends of the pipe 2 is cut off to obtain a half pipe 2'. The half-pipe cutting assembly is used to complete the quarter slitting of the half pipe 2' and then the excess at both ends is cut off, and finally a quarter pipe 2, i.e., the required parts, is obtained.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tube laser cutting tool, characterized in that: Including full pipe cutting assembly and half pipe cutting assembly; The whole pipe cutting assembly comprises a base plate (1), and a plurality of limit strips (3) are evenly spaced on the base plate (1). The limit strips (3) are fixed on the base plate (1), and the space between the limit strips (3) is used to place a whole pipe (2). The height of the limit strips (3) is slightly smaller than the outer diameter of the pipe (2). The pipe (2) is placed in the space between the limit strips (3) and the limit strips (3) and then fixed by a pressing plate (4). The pressing plate (4) is fixed on the limit strip (3) by a pressing plate screw (6). The width of the pressing plate (4) is greater than the width of the limit strip (3). The pressing plate (4) is located in the middle of the limit strip (3). The two edges of the pressing plate (4) extending to the outer side of the limit strip (3) are used to press the pipe (2). A gap is left between adjacent pressing plates (4) in the same row, and the gap is the cutting gap of the laser. The half-tube cutting assembly is obtained by replacing the first limiting strip (3) of the whole-tube cutting assembly with the second limiting strip (8). The height of the second limiting strip (8) is slightly lower than half of the outer diameter of the half-tube (2'), and the width of the second limiting strip (8) is the same as that of the first limiting strip (3).

2. The tube laser cutting tool according to claim 1, characterized in that: The length direction of the limit strip (3) is the same as the length direction of the bottom plate (1). The limit strip (3) is fixed to the bottom plate (1) by means of a limit strip screw (7). The pressure plate (4) is located above the limit strip (3). A through hole (401) is provided in the middle of the pressure plate (4) to match the limit strip screw (7). The limit strip screw (7) passes through the pressure plate (4) and the limit strip (3) in sequence and then extends into the bottom plate (1) to match the corresponding threaded hole on the bottom plate (1) to fix the limit strip (3).

3. The tube laser cutting tool according to claim 2, characterized in that: The pressure plate (4) has two pressure plate through holes (402) symmetrically formed at the front and rear sides. The pressure plate screw (6) passes through the corresponding pressure plate through holes (402) from the top of the pressure plate (4) and then matches with the corresponding threaded hole on the limiting strip (3).

4. The tube laser cutting tool according to claim 1, characterized in that: The pressing plates (4) are arranged in a plurality of rows in the length direction of the limiting strip according to requirements, and each row is arranged with a spacing therebetween.

5. The tube laser cutting tool according to claim 1, characterized in that: A groove (101) is formed on the bottom plate (1) at the end of the limiting strip (3), the groove (101) is perpendicular to the limiting strip (3), and the groove (101) extends along the width direction of the bottom plate (1). A positioning pin (5) is fixed on the bottom plate (1) at the side of the groove (101) away from the limiting strip (3), and the positioning pin (5) is located between the two limiting strips (3) and cooperates with the pipe (2).

6. The tube laser cutting tool according to claim 5, characterized in that: The side of the groove (101) close to one end of the limiting strip (3) is flush with the end of the limiting strip (3).

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