A high-precision multi-flow gearbox oil cooling pipe processing method

Abstract

The application discloses a high-precision multi-flow gearbox oil cooling pipe processing method, and relates to the technical field of automobile parts, which is applied to the processing and forming of a high-precision multi-flow gearbox oil cooling pipe. The high-precision multi-flow gearbox oil cooling pipe comprises a pipe body bent at least once and a support fixed on the pipe body, and the pipe body is provided with a plurality of oil injection holes. The technical scheme points of the application comprise the following steps: step 1, preparing a pipe bending machine and a laser hole cutting machine; and step 2, operating the pipe bending machine to bend a straight pipe to be processed and simultaneously operating the laser hole cutting machine to cut a corresponding pipe bending processing part to form corresponding oil injection holes, thereby obtaining a pipe bending processing piece. The high-precision multi-flow gearbox oil cooling pipe processing method has the effect of significantly improving the position accuracy and hole diameter accuracy of the oil injection holes by combining pipe bending processing and cutting processing.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and more specifically to a high-precision multi-flow transmission oil cooling pipe processing method. Background Technology

[0002] As a crucial component of the oil cooling system, the transmission oil cooling pipe controls the cooling effect. Its machining precision requirements are extremely high. Each component has different cooling requirements, and the requirements for hole diameter are also high. Machining this type of pipe has always been a challenge for every pipe manufacturing manufacturer. Some manufacturers also have a very high defect rate when machining pipes with multiple bends and different oil injection flow requirements.

[0003] In the existing technology, during the preparation of the gearbox oil cooling pipe, the deviation in the shape of the straight pipe after bending causes the hole position control during drilling to fail to meet the design requirements, resulting in the displacement of the oil injection position. Furthermore, it is difficult to control the hole size using conventional drilling methods, leading to unstable oil injection volume, which needs to be improved. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a high-precision multi-flow transmission oil cooling pipe processing method, which significantly improves the positional and diameter accuracy of the injection holes.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A method for processing high-precision multi-flow transmission oil cooling pipes is disclosed. This method is applied to the processing and forming of high-precision multi-flow transmission oil cooling pipes. The high-precision multi-flow transmission oil cooling pipe includes a pipe body that has been bent at least once and a bracket fixed to the pipe body. The pipe body is provided with multiple oil injection holes. The processing method includes the following steps: Step 1: Prepare a pipe bending machine and a laser cutting machine; Step 2: Run the pipe bending machine to bend the straight pipe to be processed, and simultaneously use the laser cutting machine to cut the corresponding bend areas to form the corresponding oil injection holes, thereby obtaining a bent pipe component.

[0007] By adopting the above technical solution, and by simultaneously performing bending processing on the high-precision multi-flow transmission oil cooling pipe, cutting processing is performed on the front end of the bent portion of the high-precision multi-flow transmission oil cooling pipe, so that the processing method of the high-precision multi-flow transmission oil cooling pipe has the effect of significantly improving the positional accuracy and diameter accuracy of the injection hole.

[0008] The present invention is further configured as follows: in step 2, it is determined whether the obtained bent pipe part has completed all the bending process. If so, step 3 is continued; otherwise, step 2 is continued. In step 3, the high-precision multi-flow gearbox oil cooling pipe that has been processed is unloaded, and the processed straight pipe is inserted into the bending machine to perform step 2.

[0009] The invention is further configured such that: the pipe bending machine is used to bend the processed straight pipe and make the front end of the processed straight pipe vertical, horizontal or maintain the same tilt angle; the laser hole cutting machine is used to perform circumferential rotation and / or parallel linear movement with the axis of the front end of the processed straight pipe as the axis, and to cut the front end of the processed straight pipe to form the corresponding oil injection hole.

[0010] The present invention is further configured such that: the pipe body includes an initial section and a first-stage bend section and a second-stage bend section connected sequentially to the initial section; the second-stage bend section is provided with a first oil injection hole.

[0011] The present invention is further configured such that: the secondary bending section is connected to a tertiary bending section; and the secondary bending section is provided with a second oil injection hole.

[0012] The present invention is further configured such that: the three-stage bending section is connected to a four-stage bending section, and the four-stage bending section is provided with a third oil injection hole.

[0013] The present invention is further configured such that: the fourth-level bending segment is connected to a fifth-level bending segment, and the fifth-level bending segment is provided with a fourth oil injection hole.

[0014] The present invention is further configured such that: the fifth-level bending segment is connected to a sixth-level bending segment, the sixth-level bending segment is provided with a sixth oil injection hole, and the fifth-level bending segment is provided with a fifth oil injection hole; the fifth oil injection hole is located at one end of the fifth-level bending segment near the sixth-level bending segment, and the fourth oil injection hole is located at the other end of the fifth-level bending segment.

[0015] In summary, the present invention has the following beneficial effects: by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion, the positional accuracy of the injection holes formed during the processing of the straight pipe is effectively ensured. Furthermore, the laser cutting machine significantly improves the aperture accuracy of the corresponding injection holes. This processing method ensures that the high-precision multi-flow transmission oil cooling pipe meets the requirements of different cooling components, thus significantly improving the positional and aperture accuracy of the injection holes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the high-precision multi-flow gearbox oil cooling pipe in this embodiment.

[0017] Explanation of reference numerals in the attached diagram: 1. Pipe body; 11. Initial section; 12. First-stage bend section; 13. Second-stage bend section; 131. First injection port; 132. Second injection port; 14. Third-stage bend section; 15. Fourth-stage bend section; 151. Third injection port; 16. Fifth-stage bend section; 161. Fourth injection port; 162. Fifth injection port; 17. Sixth-stage bend section; 171. Sixth injection port; 2. Support bracket. Implementation

[0018] To make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0019] like Figure 1 As shown, a high-precision multi-flow gearbox oil cooling pipe includes a pipe body 1 with at least one bend and a bracket 2 fixed to the pipe body 1. It should be noted that multiple bends on the pipe body 1 are provided with oil injection holes for cooling.

[0020] It should be mentioned that the pipe body 1 includes an initial section 11 and a first-stage bend section 12 and a second-stage bend section 13 connected in sequence to the initial section 11, and a first oil injection hole 131 is provided on the second-stage bend section 13.

[0021] The high-precision multi-flow transmission oil cooling pipe is processed using a specific high-precision multi-flow transmission oil cooling pipe processing method, which includes the following steps: Step 1: Prepare a pipe bending machine and a laser cutting machine; Step 2: Run the pipe bending machine to bend the straight pipe to be processed, and simultaneously use the laser cutting machine to cut the corresponding bend portion to form the corresponding oil injection holes, obtaining a bent pipe part. Then, determine whether the obtained bent pipe part has completed all bending processes. If yes, continue to Step 3; otherwise, continue to Step 2; Step 3: Unload the processed high-precision multi-flow transmission oil cooling pipe and insert the processed straight pipe into the pipe bending machine to perform Step 2. Therefore, by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion, this high-precision multi-flow transmission oil cooling pipe processing method significantly improves the positional accuracy and diameter accuracy of the oil injection holes.

[0022] It should be noted that the pipe bending machine is used to bend the straight pipes to be processed, and to make the front end of the straight pipes vertical, horizontal, or at the same tilt angle. The laser cutting machine is used to perform circumferential rotation and / or parallel linear motion about the axis of the front end of the straight pipe, and to cut the front end of the straight pipe to form the corresponding first oil injection hole 131. Example

[0023] like Figure 1 As shown, a high-precision multi-flow gearbox oil cooling pipe includes a pipe body 1 with at least one bend and a bracket 2 fixed to the pipe body 1. It should be noted that multiple bends on the pipe body 1 are provided with oil injection holes for cooling.

[0024] It should be mentioned that the pipe body 1 includes an initial section 11 and a first-stage bend section 12, a second-stage bend section 13 and a third-stage bend section 14 connected in sequence to the initial section 11. A first oil injection hole 131 and a second oil injection hole 132 are provided on the second-stage bend section 13, with the first oil injection hole 131 located at one end of the second-stage bend section 13 near the first-stage bend section 12 and the second oil injection hole 132 located at the other end.

[0025] The high-precision multi-flow transmission oil cooling pipe is processed using a specific high-precision multi-flow transmission oil cooling pipe processing method, which includes the following steps: Step 1: Prepare a pipe bending machine and a laser cutting machine; Step 2: Run the pipe bending machine to bend the straight pipe to be processed, and simultaneously use the laser cutting machine to cut the corresponding bend portion to form the corresponding oil injection holes, obtaining a bent pipe part. Then, determine whether the obtained bent pipe part has completed all bending processes. If yes, continue to Step 3; otherwise, continue to Step 2; Step 3: Unload the processed high-precision multi-flow transmission oil cooling pipe and insert the processed straight pipe into the pipe bending machine to perform Step 2. Therefore, by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion, this high-precision multi-flow transmission oil cooling pipe processing method significantly improves the positional accuracy and diameter accuracy of the first oil injection hole 131 and the second oil injection hole 132.

[0026] It should be noted that the pipe bending machine is used to bend the straight pipes to be processed, and to make the front end of the straight pipes vertical, horizontal, or at the same tilt angle. The laser hole cutting machine is used to perform circumferential rotation and / or parallel linear motion about the axis of the front end of the straight pipe, and to cut the front end of the straight pipe to form the corresponding first oil injection hole 131 and second oil injection hole 132. Example

[0027] like Figure 1 As shown, a high-precision multi-flow gearbox oil cooling pipe includes a pipe body 1 with at least one bend and a bracket 2 fixed to the pipe body 1. It should be noted that multiple bends on the pipe body 1 are provided with oil injection holes for cooling.

[0028] It should be mentioned that the pipe body 1 includes an initial section 11 and a first-stage bend section 12, a second-stage bend section 13, a third-stage bend section 14 and a fourth-stage bend section 15 connected to the initial section 11 in sequence. A first oil injection hole 131 and a second oil injection hole 132 are provided on the second-stage bend section 13, with the first oil injection hole 131 located at one end of the second-stage bend section 13 near the first-stage bend section 12 and the second oil injection hole 132 located at the other end. A third oil injection hole 151 is provided on the fourth-stage bend section 15.

[0029] The high-precision multi-flow transmission oil cooling pipe is processed using a specific high-precision multi-flow transmission oil cooling pipe processing method, which includes the following steps: Step 1: Prepare a pipe bending machine and a laser cutting machine; Step 2: Run the pipe bending machine to bend the straight pipe to be processed, and simultaneously use the laser cutting machine to cut the corresponding bend portion to form corresponding oil injection holes, obtaining a bent pipe part. Then, determine whether the obtained bent pipe part has completed all bending processes. If yes, continue to Step 3; otherwise, continue to Step 2; Step 3: Unload the processed high-precision multi-flow transmission oil cooling pipe and insert the processed straight pipe into the pipe bending machine to perform Step 2. Therefore, by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion, this high-precision multi-flow transmission oil cooling pipe processing method significantly improves the positional accuracy and diameter accuracy of the first oil injection hole 131, the second oil injection hole 132, and the third oil injection hole 151.

[0030] It should be noted that the pipe bending machine is used to bend the straight pipes to be processed, making the front end of the straight pipe vertical, horizontal, or at the same tilt angle. The laser cutting machine is used to perform circumferential rotation and / or parallel linear motion around the axis of the front end of the straight pipe to be processed, and to cut the front end of the straight pipe to form the corresponding first oil injection hole 131, second oil injection hole 132, and third oil injection hole 151. Example

[0031] like Figure 1 As shown, a high-precision multi-flow gearbox oil cooling pipe includes a pipe body 1 with at least one bend and a bracket 2 fixed to the pipe body 1. It should be noted that multiple bends on the pipe body 1 are provided with oil injection holes for cooling.

[0032] It should be mentioned that the pipe body 1 includes an initial section 11 and a first-stage bend section 12, a second-stage bend section 13, a third-stage bend section 14, a fourth-stage bend section 15, and a fifth-stage bend section 16 connected sequentially to the initial section 11. A first oil injection hole 131 and a second oil injection hole 132 are provided on the second-stage bend section 13, with the first oil injection hole 131 located at one end of the second-stage bend section 13 near the first-stage bend section 12, and the second oil injection hole 132 located at the other end. A third oil injection hole 151 is provided on the fourth-stage bend section 15, and a fourth oil injection hole 161 is provided on the fifth-stage bend section 16.

[0033] The high-precision multi-flow transmission oil cooling pipe is processed using a corresponding high-precision multi-flow transmission oil cooling pipe processing method, which includes the following steps: Step 1: Prepare a pipe bending machine and a laser cutting machine; Step 2: Run the pipe bending machine to bend the straight pipe to be processed, and at the same time use the laser cutting machine to cut the corresponding bend parts to form corresponding oil injection holes, thereby obtaining the bent pipe part, and then determine whether the obtained bent pipe part has completed all the bending processes. If yes, continue to Step 3; otherwise, continue to Step 2; Step 3: Unload the processed high-precision multi-flow transmission oil cooling pipe and insert the processed straight pipe into the pipe bending machine to perform Step 2. Therefore, by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion of the high-precision multi-flow transmission oil cooling pipe, the high-precision multi-flow transmission oil cooling pipe processing method can significantly improve the positional accuracy and diameter accuracy of the first injection hole 131, the second injection hole 132, the third injection hole 151, and the fourth injection hole 161.

[0034] It should be noted that the pipe bending machine is used to bend the straight pipes to be processed, making the front end of the straight pipe vertical, horizontal, or at the same tilt angle. The laser cutting machine is used to perform circumferential rotation and / or parallel linear motion around the axis of the front end of the straight pipe to be processed, and to cut the front end of the straight pipe to form the corresponding first oil injection hole 131, second oil injection hole 132, third oil injection hole 151, and fourth oil injection hole 161. Example

[0035] like Figure 1 As shown, a high-precision multi-flow gearbox oil cooling pipe includes a pipe body 1 with at least one bend and a bracket 2 fixed to the pipe body 1. It should be noted that multiple bends on the pipe body 1 are provided with oil injection holes for cooling.

[0036] It should be mentioned that the pipe body 1 includes an initial section 11 and a series of bends connected sequentially to the initial section 11: a first-stage bend 12, a second-stage bend 13, a third-stage bend 14, a fourth-stage bend 15, a fifth-stage bend 16, and a sixth-stage bend 17. A first oil injection hole 131 and a second oil injection hole 132 are provided on the second-stage bend 13, with the first oil injection hole 131 located at one end of the second-stage bend 13 near the first-stage bend 12, and the second oil injection hole 132 located at the other end. A third oil injection hole 151 is provided on the fourth-stage bend 15; a fourth oil injection hole 161 and a fifth oil injection hole 162 are provided on the fifth-stage bend 16; and a sixth oil injection hole 171 is provided on the sixth-stage bend 17. The fifth oil injection hole 162 is located at one end of the fifth-stage bend 16 near the sixth-stage bend 17, and the fourth oil injection hole 161 is located at the other end of the fifth-stage bend 16.

[0037] The high-precision multi-flow transmission oil cooling pipe is processed using a corresponding high-precision multi-flow transmission oil cooling pipe processing method, which includes the following steps: Step 1: Prepare a pipe bending machine and a laser cutting machine; Step 2: Run the pipe bending machine to bend the straight pipe to be processed, and at the same time use the laser cutting machine to cut the corresponding bend parts to form corresponding oil injection holes, thereby obtaining the bent pipe part, and then determine whether the obtained bent pipe part has completed all the bending processes. If yes, continue to Step 3; otherwise, continue to Step 2; Step 3: Unload the processed high-precision multi-flow transmission oil cooling pipe and insert the processed straight pipe into the pipe bending machine to perform Step 2. Therefore, by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion, the high-precision multi-flow transmission oil cooling pipe processing method significantly improves the positional and diameter accuracy of the first injection hole 131, the second injection hole 132, the third injection hole 151, the fourth injection hole 161, the fifth injection hole 162, and the sixth injection hole 171.

[0038] It should be noted that the pipe bending machine is used to bend the straight pipes being processed, ensuring that the front end of the straight pipe is vertical, horizontal, or maintains the same tilt angle. The laser cutting machine is used to perform circumferential rotation and / or parallel linear motion around the axis of the front end of the straight pipe being processed, and to cut the front end of the straight pipe to form the corresponding first oil injection hole 131, second oil injection hole 132, third oil injection hole 151, fourth oil injection hole 161, fifth oil injection hole 162, and sixth oil injection hole 171.

[0039] For the high-precision multi-flow transmission oil cooling pipe obtained in the above embodiments, the injection hole accuracy is tested. Specifically, the testing technology used is visual computation. The forming parameters of the formed first injection hole 131, second injection hole 132, third injection hole 151, fourth injection hole 161, fifth injection hole 162, and / or sixth injection hole 171 are compared with the corresponding set parameter values ​​for the first injection hole 131, second injection hole 132, third injection hole 151, fourth injection hole 161, fifth injection hole 162, and sixth injection hole 171 to obtain the final hole position accuracy and hole diameter accuracy. Both the forming parameters and the set parameter values ​​include the corresponding hole position parameters and hole diameter parameters.

[0040] in:

[0041] The high-precision multi-flow gearbox oil cooling pipe obtained through Example 1 has a hole position accuracy of 99.86% and a hole diameter accuracy of 99.82%.

[0042] The high-precision multi-flow gearbox oil cooling pipe obtained through Example 2 has a hole position accuracy of 99.84% and a hole diameter accuracy of 99.82%.

[0043] The high-precision multi-flow gearbox oil cooling pipe obtained through Example 3 has a hole position accuracy of 99.81% and a hole diameter accuracy of 99.79%.

[0044] The high-precision multi-flow gearbox oil cooling pipe obtained through Example 4 has a hole position accuracy of 99.80% and a hole diameter accuracy of 99.78%.

[0045] The high-precision multi-flow gearbox oil cooling pipe obtained through Example 5 has a hole position accuracy of 99.78% and a hole diameter accuracy of 99.78%.

[0046] In summary, this application, by simultaneously bending the high-precision multi-flow transmission oil cooling pipe and cutting the front end of the bent portion, effectively ensures the positional accuracy of the injection holes formed during the processing of the straight pipe. Furthermore, the use of a laser cutting machine significantly improves the aperture accuracy of the corresponding injection holes. This processing method ensures that the high-precision multi-flow transmission oil cooling pipe meets the requirements of different cooling components, thus significantly improving the positional and aperture accuracy of the injection holes.

[0047] The terms “first,” “second,” “third,” “fourth,” etc., used in this application (if applicable) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, or apparatus.

[0048] It should be noted that the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0049] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for processing high-precision multi-flow transmission oil cooling pipes, applied to the processing and forming of high-precision multi-flow transmission oil cooling pipes, wherein the high-precision multi-flow transmission oil cooling pipe includes a pipe body (1) with at least one bend and a bracket (2) fixed on the pipe body (1), the pipe body (1) being provided with multiple oil injection holes; characterized in that, The processing method includes the following steps: Step 1, prepare a pipe bending machine and a laser cutting machine; Step 2: run the pipe bending machine to bend the straight pipe to be processed, and at the same time use the laser cutting machine to cut the corresponding bend to form the corresponding oil injection hole, thereby obtaining a bent pipe part; the pipe bending machine is used to bend the straight pipe to be processed, and the front end of the straight pipe to be vertical, horizontal or maintain the same tilt angle; the laser cutting machine is used to perform circumferential rotation and / or parallel linear movement about the axis of the front end of the straight pipe to be processed, and to cut the front end of the straight pipe to form the corresponding oil injection hole.

2. The high-precision multi-flow gearbox oil cooling pipe processing method according to claim 1, characterized in that: In step 2, determine whether the obtained bent pipe part has completed all bending processes. If so, continue to step 3; otherwise, continue to step 2. In step 3, unload the high-precision multi-flow gearbox oil cooling pipe that has been processed, and insert the processed straight pipe into the bending machine to proceed with step 2.

3. The high-precision multi-flow gearbox oil cooling pipe processing method according to claim 1, characterized in that: The pipe body (1) includes an initial section (11) and a first-stage bend section (12) and a second-stage bend section (13) connected in sequence to the initial section (11); the second-stage bend section (13) is provided with a first oil injection hole (131).

4. The high-precision multi-flow gearbox oil cooling pipe processing method according to claim 3, characterized in that: The secondary bending section (13) is connected to the tertiary bending section (14); the secondary bending section (13) is provided with a second oil injection hole (132).

5. The high-precision multi-flow gearbox oil cooling pipe processing method according to claim 4, characterized in that: The three-stage bending section (14) is connected to a four-stage bending section (15), and the four-stage bending section (15) is provided with a third oil injection hole (151).

6. The high-precision multi-flow gearbox oil cooling pipe processing method according to claim 5, characterized in that: The fourth-stage bending section (15) is connected to a fifth-stage bending section (16), and the fifth-stage bending section (16) is provided with a fourth oil injection hole (161).

7. The high-precision multi-flow gearbox oil cooling pipe processing method according to claim 6, characterized in that: The fifth-stage bending section (16) is connected to a sixth-stage bending section (17). The sixth-stage bending section (17) is provided with a sixth oil injection hole (171), and the fifth-stage bending section (16) is provided with a fifth oil injection hole (162). The fifth oil injection hole (162) is located at one end of the fifth-stage bending section (16) near the sixth-stage bending section (17), and the fourth oil injection hole (161) is located at the other end of the fifth-stage bending section (16).

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