Rapid alignment tool for composite-angle pipeline piece and machining method

Abstract

The invention provides a rapid alignment tool for a composite-angle pipeline piece and a machining method. Comprising a bottom plate, a profiling pressing block, a flat plate pressing block and screws. The bottom plate is fixed to a machine tool platform and can be accurately positioned through the positioning groove, the profiling groove supports the composite angle pipeline piece from the bottom, and it is guaranteed that the composite angle pipeline piece cannot deviate during machining. The profiling pressing block and the flat plate pressing block are matched with the screws to press the composite-angle pipeline piece, and the problems of cutter vibration, unstable machining, poor surface smoothness and the like in the milling process of the composite-angle pipeline piece are solved. According to the rapid aligning and machining method for the composite-angle pipeline piece, deformation generated by additive printing forming and the like can be made up, and the clamping efficiency during machining and the surface smoothness of a product are improved.

Description

Technical Field

[0001] This invention relates to a quick alignment fixture and processing method for composite angle pipe components, belonging to the field of mechanical processing. Background Technology

[0002] Composite angle piping components are commonly used in cooling systems, oil systems, and air supply systems. Due to their limited internal space and stringent point-to-point requirements, new materials are used in their manufacturing to ensure structural strength. Common composite angle piping components utilize numerous new technologies such as additive manufacturing and precision casting. Traditional turning and clamping methods are difficult to implement and cannot compensate for deformations introduced by these new technologies. Traditional milling is also prone to machining vibrations, resulting in dimensional errors in the composite angle piping components. Therefore, ensuring that the manufactured composite angle piping components meet technical requirements is a topic worthy of further research. Summary of the Invention

[0003] The technical problem solved by the present invention is to overcome the shortcomings of the prior art and provide a quick alignment fixture and processing method for composite angle pipe components. By fixing the base plate to the machine tool platform to support the composite angle pipe component and ensure that it does not shift during processing, the contouring block and the flat block, together with screws, press the composite angle pipe component, which can compensate for the deformation caused by additive printing and other processes, improve the clamping efficiency of machining and the surface finish of the product.

[0004] The technical solution of this invention is: Firstly, a quick alignment fixture and processing method for composite angle pipe fittings are provided, including: Base plate, contoured clamping block, flat clamping block; define the direction of the fixed pipeline head as the front end and the direction of the fixed pipeline flange end as the rear end; wherein: The base plate is fixed to the machine tool platform to support the composite angle pipe components and ensure that they do not shift during processing; the direction of the fixed pipe head is defined as the front end, and the direction of the fixed pipe tail flange end is defined as the rear end. The lower surface of the contouring block is parallel to the plane of the base plate and is positioned at the front end of the base plate; the lower surface of the contouring block is provided with a pipe head positioning groove that mates with the composite angle pipe head. The upper surface of the base plate is provided with an arc groove corresponding to the area of ​​the contouring block. The positioning groove of the pipe head fits and positions the pipe head with the arc groove. The composite angle pipe head is fixed by pressing it with screws. The bottom surface of the contouring block is parallel to the plane of the base plate. The flat plate pressure block is placed on the upper rear end surface of the base plate. The base plate has a pipe flange positioning groove in the area corresponding to the flat plate pressure block. The flat plate pressure block and the base plate are fitted together by screws to press the flange face of the composite angle pipe fitting.

[0005] Preferably, the front end face of the contouring block and the base plate is provided with a tool avoidance structure to avoid interference with the tooling when using excessively long tools and milling external threads.

[0006] Preferably, the distance between the tool avoidance structure and the edge of the pipeline is not less than 25mm.

[0007] Preferably, the pipe head positioning groove and the arc groove are located at the center of the contouring block and the front end of the base plate, respectively, and the pipe flange positioning groove is located at the eccentric position of the front end of the base plate, which is set in accordance with the angle of the pipe.

[0008] Secondly, a method for rapid alignment of composite angle pipe fittings is provided, including: The additively formed composite angle pipe is placed on a base plate fixed to the machine tool, and the composite angle pipe is pressed onto the base plate by a contouring block and a flat block. Using a machine tool probe on a composite angle pipe, pick up 5 points within a length range of 30mm±1mm to 120mm±1mm from the front end face of the composite angle pipe, compare the measured coordinates of the picked points with the theoretical coordinates, adjust the clamping state of the composite angle pipe, and then re-tighten the composite angle pipe component. The actual coordinates of the composite angle pipe connection section are measured using the five-axis rotation function, the clamping state of the composite angle pipe connection section is adjusted and re-tightened; Run the CNC program on the machine tool to machine the mating surface and external threads of the composite angle pipe fitting.

[0009] Preferably, on composite angle pipelines, the error between the measured coordinate value and the theoretical coordinate value is less than 0.1mm.

[0010] Preferably, the error between the measured coordinates and the theoretical coordinates of the composite angle pipe connection section is less than 0.1 mm.

[0011] Compared with the prior art, the present invention has the following advantages: This invention addresses the challenges of rapid development and efficient clamping of composite angle pipe components in a novel manufacturing process. By designing a rapid alignment fixture for composite angle pipe components, it enables precise and rapid adjustment of the clamping posture, thereby improving the pass rate, production efficiency, and surface finish of the composite angle pipe components. Attached Figure Description

[0012] Figure 1 A schematic diagram for quickly aligning the tooling; Figure 2 A schematic diagram of the clamping posture for composite angle pipe fittings; Detailed Implementation This invention provides a quick alignment fixture for composite angle pipe fittings, comprising: a base plate, a contouring block, a flat plate block, and screws; The base plate is fixed to the machine tool platform to support the composite angle pipe components and ensure that they do not shift during processing; the direction of the fixed pipe head is defined as the front end, and the direction of the fixed pipe tail flange end is defined as the rear end. The lower surface of the contouring block is parallel to the plane of the base plate and is placed at the front end of the base plate; the lower surface of the contouring block is provided with a pipe head positioning groove that mates with the head of the composite angle pipe; the upper surface of the base plate is provided with an arc groove in the area corresponding to the contouring block, and the pipe head positioning groove and the arc groove mate to fit and position the pipe head, and the composite angle pipe head is fixed by pressing it with screws. The flat plate pressure block is placed on the upper rear end surface of the base plate. The base plate has a pipe flange positioning groove in the area corresponding to the flat plate pressure block. The flat plate pressure block and the base plate are fitted together by screws to press the flange face of the composite angle pipe fitting.

[0013] The aforementioned quick-alignment fixture for composite angle pipe components includes a base plate with threaded holes, a tool avoidance structure, a positioning groove, and a base plate fixing structure. Specifically: The threaded hole is used to determine the fixed position; two threaded holes are provided on the contoured pressure block, respectively located at both ends of the positioning groove at the head of the pipeline; a threaded hole is provided at the center of the flat pressure block, and the diameter of the threaded through hole of the flat pressure block is larger than the diameter of the threaded hole of the contoured pressure block. The front end faces of the contouring block and the base plate are equipped with tool avoidance structures. These structures secure the head of the composite angle pipe, preventing interference with the tooling when using excessively long tools or milling external threads. The positioning grooves secure the composite angle pipe components, ensuring no displacement occurs during machining. The base plate fixing structure secures the base plate to the machine tool platform. The distance between the tool avoidance structure and the edge of the pipe is no less than 25mm.

[0014] The positioning groove and arc groove at the pipe head are located at the center of the contouring block and the front end of the base plate, respectively. The positioning groove of the pipe flange is located at the eccentric position at the front end of the base plate, which is set to match the angle of the pipe. The aforementioned quick alignment fixture for composite angle pipe components uses a contouring groove to fix the head of the composite angle pipe onto the base plate.

[0015] The aforementioned quick alignment fixture for composite angle pipe fittings is characterized in that the bottom surface of the flat plate pressure block is parallel to the plane of the base plate, and the flat plate pressure block, in conjunction with screws, presses the flange surface of the composite angle pipe fitting.

[0016] Secondly, a method for rapid alignment of composite angle pipe fittings includes: The additively formed composite angle tubing is placed on a base plate fixed to a machine tool, and the composite angle tubing is pressed onto the base plate by a contouring block and a flat block. Using a machine tool probe on the composite angle pipe, five points are selected within a length range of 30mm±1mm to 120mm±1mm from the front end face of the composite angle pipe. The coordinates of the measured points are compared with the theoretical values. The clamping state of the composite angle pipe component is adjusted to control the error between the measured coordinate values ​​and the theoretical coordinate values ​​within 0.1mm. The composite angle pipe component is then re-tightened. The actual values ​​of the joint part of the composite angle pipe are measured using the five-axis rotation function of the machining equipment. The error between the measured coordinate values ​​and the theoretical coordinate values ​​is controlled within 0.1mm.

[0017] Run the CNC program on the machine tool to machine the mating surface and external threads of the composite angle pipe fitting.

[0018] Example Reference Figure 1 The present invention provides a quick alignment tooling for composite angle pipe components. For example... Figure 1 As shown, the quick alignment fixture for the composite angle pipe fitting includes: a base plate 1, a contouring pressure block 2, a flat plate pressure block 3, and screws 4.

[0019] The base plate 1 is fixed on the machine tool platform to support the composite angle pipe fitting and ensure that it will not shift during the processing; the contouring block 2, together with the screw 4, presses the head of the composite angle pipe fitting, and the bottom surface of the contouring block 2 is parallel to the plane of the base plate 1; the flat block 3, together with the screw 4, presses the flange face of the composite angle pipe fitting.

[0020] In this embodiment, a quick alignment fixture and processing method for composite angle pipe components includes the following steps: like Figure 2 As shown, the additively formed composite angle pipe component is placed on a base plate fixed to the machine tool, and the composite angle pipe component is pressed onto the base plate by a contouring block and a flat plate block. Using a machine tool probe, pick up at least 5 points on the middle section of the composite angle pipe fitting, and compare the coordinates of the measured points with the theoretical values. Adjust the clamping state of the composite angle pipe fitting, and control the error between the measured coordinate values ​​and the theoretical coordinate values ​​within 0.1mm. Then, re-tighten the composite angle pipe fitting. Use the five-axis rotation function to measure the actual values ​​of the joint of the composite angle pipe, and control the error between the measured coordinate values ​​and the theoretical coordinate values ​​within 0.1mm.

[0021] Run the CNC program on the machine tool to machine the mating surface and external threads of the composite angle pipe fittings.

[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A quick alignment fixture for composite angle pipe fittings, characterized in that... include: Base plate, contour pressing block, flat pressing block; Define the direction of the head of the fixed pipeline as the front end, and the direction of the flange end of the tail of the fixed pipeline as the rear end; wherein: The base plate is fixed to the machine tool platform to support the composite angle pipe components and ensure that they do not shift during processing; the direction of the fixed pipe head is defined as the front end, and the direction of the fixed pipe tail flange end is defined as the rear end. The lower surface of the contouring block is parallel to the plane of the base plate and is positioned at the front end of the base plate; the lower surface of the contouring block is provided with a pipe head positioning groove that mates with the composite angle pipe head. The upper surface of the base plate is provided with an arc groove corresponding to the area of ​​the contouring block. The positioning groove of the pipe head fits and positions the pipe head with the arc groove. The composite angle pipe head is fixed by pressing it with screws. The bottom surface of the contouring block is parallel to the plane of the base plate. The flat plate pressure block is placed on the upper rear end surface of the base plate. The base plate has a pipe flange positioning groove in the area corresponding to the flat plate pressure block. The flat plate pressure block and the base plate are fitted together by screws to press the flange face of the composite angle pipe fitting.

2. The quick alignment fixture for composite angle pipe fittings according to claim 1, characterized in that: The front end faces of the contouring block and the base plate are equipped with tool avoidance structures to prevent interference with the tooling when using excessively long tools or milling external threads.

3. The quick alignment fixture for composite angle pipe components according to claim 2, characterized in that: The distance between the tool avoidance structure and the edge of the pipeline shall not be less than 25mm.

4. The quick alignment fixture for composite angle pipe fittings according to claim 1, characterized in that: The positioning groove at the pipe head and the arc groove are located at the center of the contouring block and the front end of the base plate, respectively. The positioning groove of the pipe flange is located at the eccentric position at the front end of the base plate, which is set to match the angle of the pipe.

5. A method for rapid alignment and machining of composite angle pipe fittings, characterized in that... include: The additively formed composite angle pipe is placed on a base plate fixed to the machine tool, and the composite angle pipe is pressed onto the base plate by a contouring block and a flat block. Using a machine tool probe, pick up 5 points on the composite angle pipe within a length range of 30mm±1mm to 120mm±1mm from the front end face of the composite angle pipe, compare the measured coordinates of the picked points with the theoretical coordinate values, adjust the clamping state of the composite angle pipe, and then re-tighten the composite angle pipe component. The actual coordinates of the composite angle pipe connection section are measured using the five-axis rotation function, the clamping state of the composite angle pipe connection section is adjusted and re-tightened; Run the CNC program on the machine tool to machine the mating surface and external threads of the composite angle pipe fitting.

6. The method for rapid alignment of composite angle pipe fittings according to claim 1, characterized in that: On composite angle pipelines, the error between the measured coordinate value and the theoretical coordinate value is less than 0.1mm.

7. The method for rapid alignment of composite angle pipe fittings according to claim 1, characterized in that: The error between the measured coordinates and the theoretical coordinates of the composite angle pipe connection section is less than 0.1 mm.

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