Semi-automatic main pipeline rapid allowance removing equipment

Abstract

The invention discloses semi-automatic main pipeline rapid allowance removing equipment, and belongs to the technical field of engine pipeline manufacturing. The equipment comprises a clamp module, a horizontal rotating module, an operation platform, a laser alignment module, a machining module and a vertical rotating module. And the clamp module is fixed on the horizontal rotating module and is used for mounting a main pipeline of which the allowance is to be removed. The horizontal rotating module can move in the horizontal direction, so that the main pipeline deflects in the horizontal direction relative to the machining module. The machining module is fixed to the vertical rotating module, and the vertical rotating module can rotate in the vertical direction, so that the main pipeline deflects in the vertical direction relative to the machining module. The laser alignment module is fixed to the machining module and used for judging whether the perpendicularity of the main pipeline meets the cutting requirement or not. According to the method, the allowance of the main pipeline can be rapidly and accurately removed, and the dependency on personnel skills and the labor intensity can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to a semi-automatic main pipeline rapid margin removal device, belonging to the technical field of engine pipeline manufacturing. Background Art

[0002] The new generation of liquid rocket engines has a complex and compact structure, higher propulsion efficiency, and more environmentally friendly propellants, and is the main power of the new generation of launch vehicles. The main pipeline of the engine is the main pipeline used to transport a large amount of propellant to the engine. It has a thick diameter and is formed by welding multiple straight pipes and bent pipes. At present, the filing method is to hold each straight pipe and bent pipe and place them on the assembly position of the engine in-kind for comparison, mark the filing margin, and then manually remove the margin. It is greatly affected by the raw material size and material, and it is often difficult to remove it successfully at one time, and it is necessary to repeatedly compare and file, which is time-consuming and laborious.

[0003] In order to reduce the labor intensity of personnel and improve the efficiency and quality of main pipeline margin removal, it is necessary to introduce an automated margin removal method. Currently, the automatic margin removal methods for ducts include wire cutting, laser cutting, and end cutting. Among them, wire cutting has high cutting accuracy but long cutting time and is suitable for cutting longer margins; laser cutting is fast, but the cutting equipment occupies a large space and is more expensive, and the operation risk of semi-automatic cutting personnel is high; end cutting equipment is suitable for cutting smaller margins and has higher cutting efficiency, and semi-automatic equipment can be made more compact. Since the margins that need to be filed on the main pipeline are generally small, end cutting is more economical and practical. The commonly used existing end cutting equipment is a pipe end flattening machine, which is used to remove a small amount of margin from the duct end face and cut it flat. The trial diameter of the end flattening machine is for ducts with a diameter of Φ36 and below, and it can only remove the margin along the normal direction of the end face. However, the minimum diameter of the main pipeline of the new generation of liquid rocket engines is Φ110, and the maximum reaches Φ196. After filing, the end face has a perpendicularity range with the duct axis, and the end flattening machine cannot be used for end face cutting. Summary of the Invention

[0004] The technical problem solved by the present invention is: overcoming the deficiencies of the prior art, a semi-automatic main pipeline rapid margin removal device is proposed, which can quickly and accurately remove the margin of the main pipeline, and can greatly reduce the dependence on personnel skills and labor intensity.

[0005] The technical solution of the present invention is:

[0006] A semi-automatic main pipeline rapid margin removal device includes a fixture module, a horizontal rotation module, an operation platform, a laser alignment module, a processing module, and a vertical rotation module;

[0007] The fixture module is fixed on the horizontal rotation module and is used to install the main pipeline to be removed of the margin; the horizontal rotation module can rotate along the horizontal direction, so that the main pipeline has a horizontal deflection relative to the processing module;

[0008] The processing module is fixed on the vertical rotation module and is provided with a blade for cutting and removing the port margin of the main pipeline. The vertical rotation module can rotate in the vertical direction, causing the main pipeline to have a vertical deviation relative to the processing module.

[0009] The laser alignment module is fixed on the processing module and is used to form a projection line parallel to the cutting plane on the surface of the main pipeline, and adjust the perpendicularity of the main pipeline through the projection line to meet the cutting requirements.

[0010] The horizontal rotation module and the vertical rotation module are fixed on the operation platform.

[0011] Further, the horizontal rotation module includes a rotating handwheel, a rotating disc and a fixed base;

[0012] The rotating handwheel is internally provided with a screw gear transmission mechanism, and the output end of the screw gear transmission mechanism is connected to the rotating disc;

[0013] The rotating disc is placed on the fixed base coaxially, and the fixture module is fixed on the upper surface of the rotating disc; the fixed base is fixed on the operation platform;

[0014] Operate the rotating handwheel, and the rotating handwheel drives the rod gear transmission mechanism, causing the rotating disc to rotate relative to the fixed base, driving the fixture module to rotate in the horizontal direction.

[0015] Further, a plurality of grooves are provided along the radial direction on the upper surface of the rotating disc, and a slider is installed in each groove; each slider has a threaded hole, and the fixture module is fixed on the rotating disc through a bolt.

[0016] Further, a scale line is provided at the lower edge of the side wall of the rotating disc for displaying the rotation amount of the rotating disc.

[0017] Further, the vertical rotation module includes a rotating handle, a rotating platform and a fixed base;

[0018] The fixed base is fixed on the operation platform, and semi-circular structures are provided on the front and rear end faces of the fixed base;

[0019] A plurality of grooves are provided on the upper surface of the rotating platform, and a slider is installed in each groove; each slider has a threaded hole, and the processing module is fixed on the rotating platform through a bolt; the two ends of the lower surface of the rotating platform are arc surfaces, and the radian of the arc surface is the same as the radian of the semi-circular structure of the fixed base, and the lower surface of the arc surface is attached to the upper surface of the semi-circular structure; a convex structure is provided on the lower side of the rotating platform, and the convex structure falls into the corresponding concave structure of the fixed base to achieve butt joint and prevent axial movement; the rotating platform and the fixed base are coaxial;

[0020] The rotating handle is internally provided with a screw gear transmission mechanism, and the output end of the screw gear transmission mechanism is connected to a rotating disc;

[0021] Operate the rotating handle, and the rotating handle drives the internal screw gear transmission mechanism to make the rotating platform rotate relative to the fixed base along a semi-circular structure, so as to realize the vertical deflection of the main pipeline relative to the processing module.

[0022] Furthermore, a scale is arranged along the arc on the side surface of the semi-circular structure of the fixed base of the vertical rotation module to display the rotation amount of the rotating platform relative to the fixed base.

[0023] Furthermore, the fixture module includes a clamping screw, an auxiliary screw, a fixed clamping block, a clamping block limit and a sliding clamping block;

[0024] The fixed clamping block and the sliding clamping block jointly clamp the pipeline. The position of the fixed clamping block remains unchanged, and the sliding of the sliding clamping block realizes the loosening and clamping of the main pipeline;

[0025] Two clamping block limits are respectively installed on the end faces of the fixed clamping block and the sliding clamping block to ensure that the two clamping blocks are installed in place;

[0026] The clamping screw is used to fix the sliding clamping block after it is in place;

[0027] The top of the auxiliary screw abuts against the side surface of the sliding clamping block. Turn the screw to adjust the position of the sliding clamping block and assist in fixing the sliding clamping block.

[0028] Furthermore, the processing module includes a cutter disc, a tool holder, a cutting blade, a driving motor, a feed handwheel and a base;

[0029] Radial grooves are arranged on the cutter disc for installing the tool holder. The tool holder is fixed on the cutter disc, the cutting blade is fixed on the tool holder, and the tool holder adjusts the radial position along the groove to realize the cutting of conduits with different diameters;

[0030] The feed handwheel makes the cutter disc move forward and backward along the normal direction of the cutting blade by shaking to adjust the relative position between the cutting blade and the main pipeline;

[0031] The cutter disc is driven by a driving motor to rotate automatically, so that the cutting blade can perform circumferential cutting on the main pipeline.

[0032] A method for quickly removing the surplus of the main pipeline based on a semi-automatic main pipeline quick surplus removal device includes:

[0033] Install the pipeline with surplus to be removed on the fixture module;

[0034] Fix the fixture module on the horizontal rotation module, fix the laser alignment rotation module on the machining module, and fix the machining module on the vertical rotation module; adjust the horizontal rotation module and the vertical rotation module so that the angle of the main pipeline end face relative to the cutter head plane meets the target removal allowance and perpendicularity;

[0035] Rotate the feed handwheel on the machining module to make the cutter head feed or retract along the normal direction of the blade. When feeding, the cutter head moves towards the main pipeline, and when the blade contacts the main pipeline, the allowance of the main pipeline is removed. Stop feeding after reaching the machining amount, and then rotate the handwheel in the reverse direction to retract the cutter head.

[0036] Furthermore, adjust the horizontal rotation module and the vertical rotation module so that the angle of the main pipeline end face relative to the machining module meets the target removal allowance and perpendicularity, and judge whether the adjustment is in place through the laser alignment module:

[0037] The laser alignment module projects a projection line parallel to the cutter head plane on the main pipeline, and adjust the horizontal rotation module and the vertical rotation module to observe whether the position of the projection line meets the target removal allowance and perpendicularity;

[0038] When the position of the projection line coincides with the marked allowance removal position, the position of the projection line meets the requirements of the target removal allowance and perpendicularity. At this time, it is determined that the horizontal rotation module and the vertical rotation module are adjusted in place.

[0039] The advantages of the present invention compared with the prior art are as follows:

[0040] (1) By respectively setting the horizontal rotation module and the vertical rotation module, adjusting the relative angle of the cutting plane relative to the pipeline, and accurately indicating the cutting position through the laser alignment module, the present invention can achieve precise cutting of the perpendicularity in all directions of the pipeline.

[0041] (2) The present invention adopts the end face cutting method to remove the allowance of the conduit. The top end of the main pipeline does not need to be fixed. Just make the laser projection line coincide with the cutting position determined by the comparison test to determine the extension length of the main pipeline. The present invention has high removal efficiency for large-diameter conduits, and the allowance removal time for a single conduit is shortened from 2 hours to half an hour.

[0042] (3) The present invention uses a drive motor to drive the cutter head to rotate automatically, and manually shakes the feed handwheel to remove the allowance. The semi-automatic removal method can ensure the cutting accuracy and greatly reduce the labor intensity of personnel sawing and filing.

[0043] (4) By replacing the fixture and adjusting the radial position of the blade on the cutter head, the present invention can remove the allowance for pipelines of various specifications. Description of the Drawings

[0044] Upon reading the following detailed description of the preferred embodiments, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0045] Figure 1 is a schematic structural diagram of a semi-automatic main pipeline rapid margin removal device according to an embodiment of the present invention;

[0046] Figure 2 is a schematic diagram of a processing module according to an embodiment of the present invention;

[0047] Figure 3 is a schematic diagram of a horizontal rotation module according to an embodiment of the present invention;

[0048] Figure 4 is a schematic diagram of a vertical rotation module according to an embodiment of the present invention;

[0049] Figure 5 is a schematic diagram of a fixture module according to an embodiment of the present invention. Detailed Embodiments

[0050] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0051] The present invention provides a semi-automatic main pipeline rapid margin removal device for rapidly removing the filing margin of the main pipeline of a new generation liquid rocket engine. The device, as shown in Figure 1 , includes a fixture module 1, a horizontal rotation module 2, an operation platform 3, a laser alignment module 4, a processing module 5, and a vertical rotation module 9. The fixture module 1 is fixed on the horizontal rotation module 2, and the main pipeline with the margin to be removed is installed on the fixture module 1. The laser alignment module 4 is fixed on the processing module 5, and the processing module 5 is fixed on the vertical rotation module 9. The processing module 5 cuts and removes the margin at the port of the main pipeline.

[0052] The processing module 5 is as shown in Figure 2As shown in the figure, it includes a cutter head 51, a tool holder 52, a cutting blade 53, a driving motor 54, and a feed handwheel 55. The cutting blade 53 is fixed on the tool holder 52, the tool holder 52 is fixed on the cutter head 51, and the cutter head 51 is driven by the driving motor 54 to rotate automatically. The length of the cutting blade 53 is 10 mm to 20 mm, and its position can be adjusted along the tool holder 52 according to the pipeline diameter within a radius range of 35 mm to 110 mm, enabling the cutting blade 53 to cut around the pipeline for one week. The feed handwheel 55 makes the cutter head 51 move forward and backward by manual shaking to remove the surplus.

[0053] The vertical rotation module 9 is used to operate the processing module 5 to rotate in the vertical direction, causing the main pipeline to be cut to have a vertical deflection relative to the cutter head 51, and the locking function can be achieved through the screw gear structure. The vertical rotation module 9 is as Figure 4 shown, including a rotating handle 92, a rotating platform 91, and a fixed base 93. The rotating platform 91 is placed on the fixed base 93 coaxially. Operating the rotating handle 92 drives the internal screw gear transmission mechanism to make the rotating platform 91 rotate relative to the fixed base 93, and the fixed base 93 is marked with rotation scales.

[0054] The laser alignment module 4 is used to form a line parallel to the cutting plane on the surface of the main pipeline. Through this projection line, the perpendicularity of the main pipeline can be adjusted to meet the requirements.

[0055] The horizontal rotation module 2 is used to operate the main pipeline to rotate in the horizontal direction, causing the main pipeline to be cut to have a horizontal deflection relative to the cutter head 51, and the locking function can be achieved through the tightening nut between the rotating disk and the fixed base. The horizontal rotation module 2 is as Figure 3 shown, including a rotating handwheel 21, a rotating disk 22, and a fixed base 23. The rotating disk 22 is placed on the fixed base coaxially. Operating the rotating handwheel 21 drives the internal screw gear transmission mechanism to make the rotating disk 22 rotate relative to the fixed base 23, and the fixed base 23 is marked with rotation scales. The fixture module 1 is fixed on the rotating disk 22. As the rotating disk 22 rotates horizontally, the main pipeline can be horizontally deflected relative to the cutter head 51, and the vertical deflection is achieved by driving the cutter head 51 to rotate vertically relative to the main pipeline through the vertical rotation module 9.

[0056] The fixture module 1 is provided with a fixture for clamping the main pipeline. The fixture fits the outer shape of the main pipeline and is replaceable. Different pipelines are equipped with different fixtures. The fixture module 1 is as Figure 5 shown, including a clamping screw 12, an auxiliary screw 13, a fixed clamping block 14, a clamping block limit 15, and a sliding clamping block 16. The clamping screw 12 is used to fix the sliding clamping block 16 after it reaches the position, the auxiliary screw 13 is used to adjust the position of the sliding clamping block and assist in fixing the sliding clamping block 16, the fixed clamping block 14 and the sliding clamping block 16 jointly clamp the pipeline. The position of the fixed clamping block 14 remains unchanged, and the sliding clamping block moves to achieve loosening and clamping. The clamping block limit is used to ensure that the clamping block is installed in place.

[0057] The horizontal rotation module 2 and the vertical rotation module 9 are fixed on the operation platform 3, and it is necessary to ensure that one side of the cutter head corresponds to the side for clamping the pipeline. The operation platform 3 is internally provided with a compressed air treatment unit and a power module, which are used to provide compressed air and electricity for the operation of the equipment.

[0058] The sling 7 is used to lift the equipment.

[0059] The method for filing the main pipeline using this equipment is as follows:

[0060] 1) Clamp the pipeline with the determined allowance removed after on-site comparison on the fixture module 3 of the equipment. The fixture module 3 installs the pipeline to be removed with the allowance. When clamping the pipeline, the fixture is in the loose state. After the pipeline is placed in place, operate the clamping screw 12 to clamp the pipeline. The clamping state is as Figure 5 shown.

[0061] 2) Fix the fixture module 3 on the horizontal rotation module 2, fix the laser alignment module 4 on the processing module 5, and fix the processing module 5 on the vertical rotation module 9. In order to meet the flatness requirement of the pipeline end face after removing the allowance, adjust the angles of the horizontal rotation module 2 and the vertical rotation module 9 with respect to the main pipeline end face relative to the cutter head plane, and judge whether the adjustment is in place through the laser alignment module 4:

[0062] The laser alignment module 4 projects a light ray parallel to the cutter head plane on the main pipeline. Adjust the horizontal rotation module 2 and the vertical rotation module 9, and observe whether the position of the light ray meets the target allowance removal and perpendicularity. The adjustment method is as follows: Operate the rotation handle of the horizontal rotation module 2 to rotate the fixture module 3 together with the pipeline horizontally by a certain angle. The specific angle value can be adjusted by observing the scale value on the horizontal rotation module 2; Operate the rotation handwheel of the vertical rotation module 9 to rotate the processing module 5 vertically by a certain angle. The specific angle value can be adjusted by observing the scale value on the vertical rotation module 9.

[0063] When the position of the light ray coincides with the marked allowance removal position by the filing personnel, the position of the light ray meets the requirements of the target allowance removal and perpendicularity. At this time, the horizontal rotation module 2 and the vertical rotation module 9 can be locked.

[0064] 3) Operate the processing module to remove the allowance from the main pipeline

[0065] Manually rotate the feed handwheel on the processing module to make the cutter head feed or retract along the normal direction of the blade. When feeding, the cutter head moves towards the pipeline, and when the blade contacts the pipeline, the allowance of the pipeline is removed. Stop feeding when reaching the current machining amount, and then rotate the handwheel in the reverse direction to retract the cutter head.

[0066] This device can achieve the removal of allowances with a certain perpendicularity, has a high machining accuracy, and can replace the traditional manual method of removing allowances, greatly reducing the labor intensity of operators and improving the efficiency of allowance removal.

[0067] The above-described embodiments are only relatively preferred specific embodiments of the present invention. The ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-automatic main pipeline rapid excess removal device, characterized in that: It includes a fixture module, a horizontal rotation module, an operating platform, a laser alignment module, a processing module and a vertical rotation module; The fixture module is fixed on the horizontal rotating module and is used to install the main pipeline to be removed; the horizontal rotating module can rotate in the horizontal direction so that the main pipeline is horizontally deflected relative to the processing module; The processing module is fixed on the vertical rotating module and is provided with a blade for cutting and removing the port margin of the main pipeline; the vertical rotating module can rotate in the vertical direction so that the main pipeline is vertically deflected relative to the processing module; The laser alignment module is fixed on the processing module and is used to form a projection line parallel to the cutting plane on the surface of the main pipe, and adjust the verticality of the main pipe through the projection line to meet the cutting requirements; The horizontal rotation module and the vertical rotation module are fixed on the operating platform.

2. A semi-automatic main line rapid excess removal device according to claim 1, characterized in that: The horizontal rotation module includes a rotating hand wheel, a rotating disk and a fixed base; The rotating hand wheel has a built-in screw gear transmission mechanism, and the output end of the screw gear transmission mechanism is connected to the rotating disk; The rotating disk is placed on the fixed base and is coaxial, and the clamp module is fixed on the upper surface of the rotating disk; the fixed base is fixed on the operating platform; Operate the rotating hand wheel to rotate the hand wheel drive rod gear transmission mechanism, so that the rotating disk rotates relative to the fixed base, driving the fixture module to rotate in the horizontal direction.

3. The semi-automatic main line rapid excess removal device according to claim 1 is characterized in that: The upper surface of the rotating disk is provided with a plurality of grooves in the radial direction, and a slider is installed in each groove; each slider has a threaded hole, and the clamp module is fixed on the rotating disk by bolts.

4. The semi-automatic main line rapid excess removal device according to claim 1 is characterized in that: The lower edge of the side wall of the rotating disk is provided with scale lines for displaying the rotation amount of the rotating disk.

5. The semi-automatic main line rapid excess removal device according to claim 1 is characterized in that: The vertical rotation module comprises a rotation handle, a rotation platform and a fixed base; The fixed base is fixed on the operating platform, and the front and rear end surfaces of the fixed base are provided with semi-arc structures; The upper surface of the rotating platform is provided with a plurality of grooves, each of which is provided with a slider; each slider is provided with a threaded hole, and the processing module is fixed to the rotating platform by bolts; the two ends of the lower surface of the rotating platform are arc-shaped surfaces, the arc of the arc-shaped surface is the same as the arc of the semi-arc structure of the fixed base, and the lower surface of the arc-shaped surface fits the upper surface of the semi-arc structure; the lower side of the rotating platform is provided with a convex structure, and the convex structure falls into the concave structure corresponding to the fixed base to achieve docking and prevent axial movement; the rotating platform is coaxial with the fixed base; The rotating handle has a built-in screw gear transmission mechanism, and the output end of the screw gear transmission mechanism is connected to the rotating disk; The rotating handle is operated to drive the internal screw gear transmission mechanism to rotate the rotating platform relative to the fixed base along the semi-arc structure, so that the main pipeline is vertically deflected relative to the processing module.

6. A semi-automatic main line rapid excess removal device according to claim 5, characterized in that: The semi-arc-shaped structure side of the vertical rotation module fixed base is provided with scales along the arc to display the rotation amount of the rotating platform relative to the fixed base.

7. The semi-automatic main line rapid excess removal device according to claim 1 is characterized in that: The clamp module includes a clamping screw, an auxiliary screw, a fixed clamp block, a clamp block limiter and a sliding clamp block; The fixed clamp block and the sliding clamp block clamp the pipeline together. The fixed clamp block remains in position, and the sliding clamp block moves to loosen and clamp the main pipeline. The two clamping block limiters are respectively installed on the end surface of the fixed clamping block and the end surface of the sliding clamping block to ensure that the two clamping blocks are installed in place; The clamping screw is used to fix the sliding clamp block after the sliding clamp block is in place; The top end of the auxiliary screw rod is pressed against the side surface of the sliding clamp block, and the screw rod is turned to adjust the position of the sliding clamp block and assist in fixing the sliding clamp block.

8. The semi-automatic main line rapid excess removal device according to claim 1 is characterized in that: The processing module includes a cutter head, a cutter holder, a blade, a drive motor, a feed hand wheel and a base; The cutter disc is provided with radial grooves for installing a cutter holder, the cutter holder is fixed on the cutter disc, the blade is fixed on the cutter holder, and the cutter holder adjusts its radial position along the grooves to achieve cutting of catheters with different diameters; The feed hand wheel is shaken to make the cutter disc move forward and backward along the normal direction of the blade, thereby adjusting the relative position of the blade and the main pipe; The cutter disc is driven by a driving motor to automatically rotate, so that the blade can perform circumferential cutting on the main pipeline.

9. A method for quickly removing excess from a main pipe based on the semi-automatic main pipe quick excess removal device according to claim 8, characterized in that: include: Install the excess pipeline to be removed on the fixture module; Fix the fixture module on the horizontal rotation module, fix the laser counter-rotation module on the processing module, and fix the processing module on the vertical rotation module; adjust the horizontal rotation module and the vertical rotation module so that the angle of the main pipe end face relative to the cutter disc plane meets the target removal margin and verticality; By rotating the feed handwheel on the machining module, the cutter disc is fed or withdrawn along the normal direction of the blade. When feeding, the cutter disc moves toward the main pipe. When the blade contacts the main pipe, the excess of the main pipe is removed. After feeding to the machining amount, the feeding is stopped, and then the handwheel is rotated in the opposite direction to withdraw the cutter disc.

10. The method for quickly removing excess from a main pipeline according to claim 9, characterized in that: Adjust the horizontal rotation module and the vertical rotation module so that the angle of the main pipeline end face relative to the processing module meets the target removal margin and verticality. Use the laser alignment module to determine whether the adjustment is in place: The laser alignment module projects a projection line parallel to the cutter disc plane on the main pipe, and the horizontal rotation module and the vertical rotation module are adjusted to observe whether the position of the projection line meets the target removal margin and verticality; When the projection line position coincides with the marked excess removal position, the projection line position meets the target excess removal and verticality requirements, and at this time it is determined that the horizontal rotation module and the vertical rotation module are adjusted into place.

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