Scribing device and method for inclined branch pipe of pipe

Abstract

The invention provides a scribing device and method for an inclined branch pipe of a pipe. The method includes the following steps that a pipe inclined branch pipe marking device is assembled; turning on the laser transmitter, calibrating and adjusting the position of the laser transmitter by using the flexible platform, and ensuring that the transmitted laser grid lines are parallel and vertical to the grid lines of the flexible platform; the pipe inclined branch pipe is installed, the flexible platform is used for positioning the pipe inclined branch pipe and straightening the pipe inclined branch pipe, and it is guaranteed that the center line of the straight pipe section of the pipe inclined branch pipe is parallel to the opposite grid lines of the flexible platform; according to parameters of the inclined branch pipe of the pipe, grid lines projected on the inclined branch pipe of the pipe by laser are utilized, a translation method is adopted for scribing, firstly, a reference point A is utilized, and a graph is linearly translated and drawn at a point B; taking the point position B as a reference point, translating along the arc length of the curved surface of the inclined branch pipe of the pipe, and drawing a point position C for the graph; the translation process is free of a corner or an oblique angle and is performed along a grid line parallel line projected by the laser, and the opening graph of the inclined branch pipe is drawn on the inclined branch pipe.

Description

Technical Field

[0001] The invention relates to pipelines in the field of ships, and in particular to a device and method for marking oblique branch pipes of pipes. Background Art

[0002] The shipbuilding industry is complex and the piping systems are diverse. The construction involves the cutting and welding of oblique branches of pipes of various calibers and materials. Currently, oblique branches are cut and processed on-site.

[0003] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application: The cutting opening of the inclined branch pipe is an irregular "duck egg shape". The pipe opening is neither a perfect circle nor an ellipse, and the position is generally at an angle to the reference point, which makes it difficult to mark the inclined branch opening process, and the construction accuracy is low and the speed is slow. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the embodiments of the present application provide a device and method for marking the opening of an oblique branch pipe, which is difficult, has low construction accuracy and is slow. The method uses a device for marking the opening of an oblique branch pipe, and uses a laser transmitter to project grid lines for marking, thereby improving the quality and construction efficiency of marking the opening of an oblique branch pipe, and solving the technical problem of marking the opening of an oblique branch pipe.

[0005] The solution adopted by the embodiment of the present application to solve the technical problem is: A pipe oblique branch marking device comprises a flexible platform, a laser emitter bracket, a laser emitter base and a laser emitter; The laser transmitter is a grid-type laser module, which is used to project grid lines on the oblique branches of the pipe; The laser transmitter base is used to assemble the laser transmitter; The flexible platform is a flat workbench used to accommodate pipe oblique branches for marking operations; The laser emitter bracket is a Z-shaped frame, the bottom surface of the laser emitter bracket is fixed to the flexible platform and in plane contact, the side surface is perpendicular to the flexible platform, and the upper end surface has a sliding groove for connecting to the laser emitter base and sliding in the X-axis direction; The oblique branch of the pipe is placed on a flexible platform, and a laser emitter suspended on a laser emitter bracket through a laser emitter base emits laser light to project grid lines on the oblique branch of the pipe to draw the opening pattern of the oblique branch.

[0006] Specifically, the laser emitter has three colors: red, yellow and green. The thickness of the grid lines emitted by the laser emitter is adjustable. The plane of the outlet end of the laser emitter is parallel to the flexible platform. At the same time, the center line of the oblique branch of the pipe must be parallel to the grid line of the flexible platform. The laser emitter is adjusted and calibrated using the flexible platform.

[0007] Specifically, the laser emitter base is connected to the laser emitter bracket and is locked and fixed by the laser emitter fixing bolt and the laser emitter fixing bolt gasket; the laser emitter base makes a linear motion along the X direction in the groove on the upper end surface of the laser emitter bracket, and the laser emitter moves up and down along the Z axis in the laser emitter base, and the size of the grid is changed by changing the distance between the laser emitter and the oblique branch of the pipe.

[0008] Specifically, the laser emitter base is connected to the laser emitter bracket by a linear guide rail, the linear guide rail is installed on the upper end surface of the laser emitter bracket, and a matching slider is installed on the upper end of the laser emitter base.

[0009] Specifically, the flexible platform has an array of through holes, the lower end surface of the laser emitter bracket has a through hole directly connected to the flexible platform, and the laser emitter bracket is assembled and fixed on the flexible platform by passing a locking pin through the through hole.

[0010] In order to further solve the technical problem to be solved by the embodiment of the present application, in a pipe oblique branch marking method provided in the embodiment of the present application, a pipe oblique branch marking device is applied, comprising the following steps: Step 1: Assemble the pipe oblique branch marking device, and use the flexible platform to connect and fix the laser emitter bracket, the laser emitter base, the locking pin, the laser emitter, the laser emitter fixing bolt, and the laser emitter fixing bolt gasket; Step 2: Turn on the laser transmitter and use the flexible platform to calibrate and adjust the up and down and left and right positions of the laser transmitter to ensure that the emitted laser grid lines are parallel and perpendicular to the grid lines of the flexible platform; Step 3: Install the oblique branch pipe, use the flexible platform to position the oblique branch pipe and align the oblique branch pipe, and ensure that the center line of the straight pipe section of the oblique branch pipe is parallel to the grid line facing the flexible platform; Step 4: According to the parameters of the inclined branch of the pipe, the grid lines projected on the inclined branch of the pipe by laser are used, and the translation method is adopted. First, the reference point A is used to translate the straight line of the figure to point B; then point B is used as the reference point, and the figure is drawn at point C by translation along the arc length of the curved surface of the inclined branch of the pipe; the entire translation process has no corners or bevels, and the translation process is carried out along the parallel lines of the grid lines projected by the laser, and the opening figure of the inclined branch is drawn on the inclined branch of the pipe.

[0011] Furthermore, in the step three, the oblique branch of the pipe is fixed by using an L-shaped fixture or a V-shaped iron fixture on a flexible platform; If an L-shaped fixture is used, use the side of the pipe oblique branch to align it, and place one end of the pipe oblique branch close to the side of the L-shaped fixture to ensure that the center of the pipe oblique branch is parallel to the grid line facing the platform; If a flexible platform V-type clamp is used, the oblique branch of the pipe can be placed on the flexible platform V-type clamp.

[0012] Furthermore, in step 4, the number of laser emitters is appropriately increased according to demand to improve the density of grid lines.

[0013] Positive effects: The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages: 1. Since the embodiment of the present application adopts the technical means of placing the oblique branch of the pipe on a flexible platform and hanging the laser emitter on the laser emitter bracket through the laser emitter base, the outlet end plane of the laser emitter is parallel to the flexible platform, and the center line of the oblique branch of the pipe is parallel to the grid line of the flexible platform, which effectively solves the technical problem of marking the opening of the oblique branch of the pipe in the prior art, and thus achieves the technical effect of the parallelism of the grid lines projected by the laser on the oblique branch of the pipe.

[0014] 2. Since the embodiment of the present application adopts the technical means of marking the opening of the oblique branch pipe by the translation method, the opening position of the oblique branch pipe is at point C, and the reference point is at point A. First, point A is used as the reference point. According to the size of the drawing, the grid lines projected by the laser are used to translate the required opening figure in a straight line along the X-axis direction and draw it at point B. Then, with point B as the reference point, the required figure at point C is translated by arc length, which effectively solves the technical problem of marking the opening of the oblique branch pipe of the pipe in the prior art. The drawing process avoids the problem of calculating both the length and the angle. The entire drawing process only requires measuring the straight line length and the arc length respectively. The grid lines can also be used as reference points to improve the drawing accuracy, and the accuracy of the entire drawing figure will not be affected by a drawing error at a certain point, thereby improving the drawing accuracy. The direct projection of the grid lines also avoids manual line drawing during the drawing process, thereby achieving the technical effect of improving construction quality and efficiency.

[0015] The invention is suitable for application as a pipe oblique branch marking device and method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of a pipe oblique branch marking device; Figure 2 It is a front view of a pipe oblique branch marking device; Figure 3 It is a side view of a pipe oblique branch marking device; Figure 4 A top view of a pipe oblique branch marking device; Figure 5 A schematic diagram of a grid laser projection for a laser transmitter; Figure 6 This is a schematic diagram of the projection of the oblique branch of the pipe.

[0018] In the figure, 1. Flexible platform, 2. Laser emitter bracket, 3. Locking pin, 4. Laser emitter base, 5. Laser emitter, 6. Laser emitter fixing bolt gasket, 7. Laser emitter fixing bolt, 8. Opening sample tube, 9. Branch pipe sample tube. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0020] As shown in the figure, a pipe oblique branch marking device includes a flexible platform 1, a laser emitter bracket 2, a laser emitter base 4 and a laser emitter 5; The laser transmitter 5 is a grid-type laser module, which is used to project grid lines on the oblique branch of the pipe; The laser transmitter base 4 is used to assemble the laser transmitter 5; The flexible platform 1 is a workbench with a flat surface, used to accommodate the oblique branch pipes of the pipes for marking construction work; The laser emitter bracket 2 is a Z-shaped frame, the bottom surface of the laser emitter bracket 2 is fixed to the flexible platform 1 and in plane contact, the side surface is perpendicular to the flexible platform 1, and the upper end surface has a sliding groove for connecting the laser emitter base 4 and sliding in the X-axis direction; The oblique branch of the pipe is placed on a flexible platform 1, and a laser emitter 5 suspended on a laser emitter bracket 2 through a laser emitter base 4 emits laser light to project grid lines on the oblique branch of the pipe to draw an opening pattern of the oblique branch.

[0021] Preferably, the laser emitter 5 has three colors: red, yellow and green. The thickness of the grid lines emitted by the laser emitter 5 is adjustable. The thinner the grid lines, the better the actual effect. The outlet end plane of the laser emitter 5 is parallel to the flexible platform 1. At the same time, the center line of the inclined branch of the pipe needs to be parallel to the grid lines of the flexible platform 1 to ensure the parallelism of the grid lines projected by the laser on the inclined branch of the pipe. To ensure the overall working effect and accuracy, this device needs to be calibrated using the flatness of the flexible platform 1 and its own grid lines. Before construction, the grid lines need to be projected onto the flexible platform first, and the grid lines of the flexible platform 1 are used to measure the effect of laser projection. If the grid lines projected by the laser on the flexible platform 1 are tilted or deformed, calibration is required; the laser emitter 5 needs to be adjusted and calibrated using the flexible platform 1.

[0022] Preferably, the number of laser emitters can be appropriately increased according to demand to improve the grid line density.

[0023] Preferably, the laser emitter base 4 is used to connect the laser emitter 5 with the laser emitter bracket 2. The laser emitter base 4 can make linear motion along the X direction in the groove on the upper end surface of the laser emitter bracket 2. The laser emitter 5 can move up and down along the Z axis in the laser emitter base 4. The size of the grid can be changed by changing the distance between the laser emitter 5 and the oblique branch of the pipe. In this embodiment, the laser emitter base 4 is connected to the laser emitter bracket 2 and is locked and fixed by the laser emitter fixing bolt 7 and the laser emitter fixing bolt gasket 6. In order to ensure the smoothness and durability of the linear motion of the laser emitter base 4 in the X direction, a linear guide rail can also be used for connection. The linear guide rail is installed on the upper end surface of the laser emitter bracket 2, and a matching slider is installed on the upper end of the laser emitter base 4. The center hole of the laser emitter base 4 has sufficient depth to ensure that the laser emitter 5 can move along the Z axis.

[0024] The flexible platform 1 has an array of through holes, the lower end surface of the laser emitter bracket 2 has a through hole directly connected to the flexible platform 1, and the laser emitter bracket 2 is assembled and fixed on the flexible platform 1 by passing the locking pin 3 through the through hole.

[0025] A pipe oblique branch marking method, using a pipe oblique branch marking device, comprises the following steps: Step 1: assemble the pipe oblique branch marking device, and use the flexible platform 1 to connect and fix the laser emitter bracket 2, the laser emitter base 4, the locking pin 3, the laser emitter 5, the laser emitter fixing bolt 7, and the laser emitter fixing bolt gasket 6; Step 2, turn on the laser emitter 5, use the flexible platform 1 to calibrate and adjust the up and down, left and right positions of the laser emitter 5, ensure that the emitted laser grid lines are parallel and perpendicular to the grid lines of the flexible platform 1, and the calibration process can be directly calibrated using the grid lines of the flexible platform 1, and the grid projection of the laser projected on the flexible platform 1 is overlapped with the grid lines of the flexible platform 1 itself. If the two coincide, it means that the laser emitter 5 is installed correctly. If the grid lines projected by the laser emitter 5 are at an angle to the grid lines of the flexible platform 1, it is necessary to rotate and adjust the laser emitter 5 in the XY plane. If the grid lines projected by the laser emitter 5 are at different sizes on the flexible platform 1, it means that the plane of the exit end of the laser emitter 5 is not parallel to the flexible platform 1. At this time, a digital level can be used to adjust its flatness; Step 3: Install the oblique branch pipe of the pipe, use the flexible platform 1 to position the oblique branch pipe and align the oblique branch pipe to ensure that the center line of the straight pipe section of the oblique branch pipe is parallel to the grid line facing the flexible platform; to ensure construction efficiency, the L-shaped fixture or V-shaped pad fixture on the flexible platform 1 can be directly used to fix the oblique branch pipe of the pipe; if the L-shaped fixture is used, use the side of the oblique branch pipe to align it, and put one end of the oblique branch pipe against the side of the L-shaped fixture to ensure that the center of the oblique branch pipe is parallel to the grid line facing the platform; if the flexible platform V-shaped fixture is used, just place the oblique branch pipe on the flexible platform V-shaped fixture; Step 4: According to the parameters of the opening of the oblique branch of the pipe, the grid lines projected on the oblique branch of the pipe by the laser of the laser transmitter 5 are used to draw the opening pattern of the oblique branch on the oblique branch of the pipe; the oblique branch opening marking adopts the translation method, firstly the straight line is translated, and then the arc length of the oblique branch curved surface of the pipe is translated. The whole translation process has no corners or bevels, and the translation process is carried out along the parallel lines of the grid lines projected by the laser; Specifically, if the actual required opening position of the inclined branch pipe is at point C, the reference point is point A, first take point A as the reference point, according to the size of the drawing, use the grid line projected by the laser, and draw the required opening figure in the X-axis direction at point B by linear translation, and then use point B as the reference point to draw the required figure at point C by arc length translation. The drawing process uses the straight line length and arc length to select points for drawing. This drawing process avoids the problem of calculating both the length and the angle. The entire drawing process only needs to measure the straight line length and arc length separately. At the same time, due to the projection of the grid lines, the surface of the inclined branch pipe of the pipe has a large number of parallel lines and vertical lines projected by the laser. Among them, a laser transmitter with a large grid line density can be selected according to needs, or the density of the grid lines can be increased by increasing the number of laser transmitters. Each grid line in the drawing process can be used as a reference point, and these grid lines can also be used as comparison points to improve the drawing accuracy. The accuracy of the entire drawing figure will not be affected by a drawing error at a certain point, which improves the drawing accuracy. The direct projection of the grid lines also avoids manual line drawing in the drawing process, which improves the construction quality and efficiency as a whole.

[0026] In this embodiment, see the attached Figure 1 As shown, the oblique branch pipes of the pipe are on the flexible platform 1, one is the open hole sample pipe 8 after marking, and the other is the finished branch pipe sample pipe 9.

[0027] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the oblique branch of the pipe is placed on the flexible platform 1, and the laser emitter 5 is suspended on the laser emitter bracket 2 through the laser emitter base 4, the outlet end plane of the laser emitter 5 is parallel to the flexible platform 1, and the center line of the oblique branch of the pipe is parallel to the grid line of the flexible platform 1, ensuring the parallelism of the grid line projected by the laser on the oblique branch of the pipe.

[0028] Since the marking of the opening of the inclined branch pipe adopts the translation method, the opening position of the inclined branch pipe is at point C and the reference point is at point A. First, point A is used as the reference point. According to the size of the drawing, the grid lines projected by the laser are used to translate the required opening figure in a straight line along the X-axis direction to point B. Then, with point B as the reference point, the required figure at point C is translated by arc length. Therefore, the drawing process avoids the problem of calculating both length and angle. The entire drawing process only requires measuring the length of the straight line and the length of the arc respectively. The grid lines can also be used as reference points to improve the drawing accuracy. The accuracy of the entire drawing will not be affected by a drawing error at a certain point, thereby improving the drawing accuracy. The direct projection of the grid lines also avoids manual line drawing during the drawing process, thereby improving the construction quality and efficiency as a whole.

[0029] It is worth noting that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of the laser emitter base 4 and the laser emitter 5 are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. 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 pipe oblique branch marking device, characterized by: It comprises a flexible platform (1), a laser emitter bracket (2), a laser emitter base (4) and a laser emitter (5); The laser emitter (5) is a grid-type laser module, used to project grid lines on the oblique branch of the pipe; The laser transmitter base (4) is used to assemble the laser transmitter (5); The flexible platform (1) is a workbench with a flat surface, used to receive pipe oblique branches for marking operations; The laser emitter bracket (2) is a Z-shaped frame. The bottom surface of the laser emitter bracket (2) is fixed to the flexible platform (1) and in planar contact. The side surface is perpendicular to the flexible platform (1). The upper end surface has a sliding groove for connecting to the laser emitter base (4) and sliding in the X-axis direction. The oblique branch of the pipe is placed on a flexible platform (1), and a laser emitter (5) suspended on a laser emitter bracket (2) through a laser emitter base (4) emits laser light to project grid lines on the oblique branch of the pipe, thereby drawing an opening pattern of the oblique branch.

2. The device for marking oblique branch pipes according to claim 1 is characterized in that: The laser emitter (5) has three colors: red, yellow, and green. The thickness of the grid lines emitted by the laser emitter (5) is adjustable. The plane of the outlet end of the laser emitter (5) is parallel to the flexible platform (1). At the same time, the center line of the oblique branch of the pipe needs to be parallel to the grid lines of the flexible platform (1). The laser emitter (5) is adjusted and calibrated using the flexible platform (1).

3. The device for marking oblique branch pipes according to claim 1, characterized in that: The laser emitter base (4) is connected to the laser emitter bracket (2) and is locked and fixed by means of a laser emitter fixing bolt (7) and a laser emitter fixing bolt gasket (6); the laser emitter base (4) moves linearly along the X direction in the groove on the upper end surface of the laser emitter bracket (2), and the laser emitter (5) moves up and down along the Z axis in the laser emitter base (4), and the size of the grid is changed by changing the distance between the laser emitter (5) and the oblique branch of the pipe.

4. The device for marking oblique branch pipes according to claim 1, characterized in that: The laser emitter base (4) and the laser emitter bracket (2) are connected by a linear guide rail, the linear guide rail is installed on the upper end surface of the laser emitter bracket (2), and a matching slider is installed on the upper end of the laser emitter base (4).

5. The device for marking oblique branch pipes according to claim 1 is characterized by: The flexible platform (1) has an array of through holes, the lower end surface of the laser emitter bracket (2) has a through hole directly connected to the flexible platform (1), and the laser emitter bracket (2) is assembled and fixed on the flexible platform (1) by passing a locking pin (3) through the through hole.

6. A method for marking an oblique branch of a pipe, characterized by: The device according to any one of claims 1 to 5 comprises the following steps: Step 1: assemble the pipe oblique branch marking device, and use the flexible platform (1) to connect and fix the laser emitter bracket (2), the laser emitter base (4), the locking pin (3), the laser emitter (5), the laser emitter fixing bolt (7), and the laser emitter fixing bolt gasket (6); Step 2: Turn on the laser emitter (5), and use the flexible platform (1) to calibrate and adjust the vertical and horizontal positions of the laser emitter (5) to ensure that the grid lines of the emitted laser are parallel and perpendicular to the grid lines of the flexible platform (1); Step 3: Install the oblique branch pipe, use the flexible platform (1) to position the oblique branch pipe and align the oblique branch pipe, and ensure that the center line of the straight pipe section of the oblique branch pipe is parallel to the grid line of the flexible platform (1); Step 4: According to the parameters of the inclined branch of the pipe, the grid lines projected on the inclined branch of the pipe by laser are used, and the translation method is adopted. First, the reference point A is used to translate the straight line of the figure to point B; then point B is used as the reference point, and the figure is drawn at point C by translation along the arc length of the curved surface of the inclined branch of the pipe; the entire translation process has no corners or bevels, and the translation process is carried out along the parallel lines of the grid lines projected by the laser, and the opening figure of the inclined branch is drawn on the inclined branch of the pipe.

7. A method for marking oblique branch pipes according to claim 6, characterized in that: In the step 3, the oblique branch pipe of the pipe is fixed by using an L-shaped fixture or a V-shaped iron fixture on the flexible platform (1); If an L-shaped fixture is used, use the side of the pipe oblique branch to align it, and place one end of the pipe oblique branch close to the side of the L-shaped fixture to ensure that the center of the pipe oblique branch is parallel to the grid line facing the platform; If a flexible platform V-type clamp is used, the oblique branch of the pipe can be placed on the flexible platform V-type clamp.

8. A method for marking oblique branch pipes according to claim 6, characterized in that: In step 4, the number of laser emitters (5) is appropriately increased according to demand, thereby increasing the density of the grid lines.

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