Processing method of special-shaped structure column pipe radiator mounting bracket and milling tool

Abstract

The application discloses a processing method and a milling tool for a special-shaped structure column tube radiator mounting bracket, and comprises a right end plate, a right top plate, a right pressing block, a large V-shaped block, a right horizontal plate, a right screw rod, a first positioning core shaft, a right top rod, a first positioning block, a round nut, a second positioning block, a second positioning core shaft, a bottom plate, a small V-shaped block, a left pressing block, a left horizontal plate, a left screw rod, a left top plate, a left top rod and a left end plate. The processing method and the milling tool are combined, so that the special-shaped structure column tube radiator mounting bracket is quickly clamped and accurately positioned, the consistency of product processing quality is ensured, the interchangeability of products is realized, and the processing efficiency and quality of the products are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of numerical control milling of tubular fuel oil radiator accessory of aero-engine, and particularly relates to a processing method of a mounting bracket of a special-shaped tubular radiator and a milling tool used. BACKGROUND

[0002] The tubular radiator is an important component accessory of the oil system of an aero-engine, and mainly functions to cool high-temperature oil by low-temperature fuel oil to reduce the temperature of the oil. The product is usually connected by argon arc welding and is mainly composed of a mounting bracket, a core assembly and a fuel oil inlet and outlet assembly. The main processing techniques include argon arc welding, vacuum brazing, sheet metal forming, mechanical processing and heat treatment.

[0003] The mounting size of the special-shaped tubular radiator is usually formed by post-weld machining. Before welding, a process hole for positioning is reserved on the mounting bracket, and a machining allowance is reserved on the mounting surface. During the machining process, the mounting bracket is positioned by a welding fixture, and then the welding is completed. Subsequently, the milling of the mounting hole and the mounting surface of the mounting bracket is performed (see the schematic diagram of the special-shaped tubular radiator of the mounting bracket in FIG. 1). Figure 21

[0004] During the post-weld milling process of the mounting bracket, the following problems exist:

[0005] (1) It is difficult to clamp and "level" the special-shaped tubular radiator before milling;

[0006] (2) During the milling process, some mounting brackets have "lack of material", which cannot guarantee the processing requirements;

[0007] (3) After milling, the core assembly is misaligned with the oil inlet and outlet;

[0008] (4) The milling process is low in efficiency and high in risk, which seriously affects the delivery requirements of the product.

[0009] Based on the above problems, an effective processing method is needed to overcome the above problems (1) to (4). SUMMARY

[0010] The present application aims to provide a processing method of a mounting bracket of a special-shaped tubular radiator and a milling tool, which improves the product quality and processing efficiency through one-time rapid clamping and positioning of the milling tool, thereby meeting the processing requirements.

[0011] To achieve the above-mentioned purpose, the present application adopts the following technical solution:

[0012] A milling tool for a mounting bracket of a special-shaped tubular radiator, comprising:

[0013] ​A bottom plate, wherein the bottom plate comprises mutually perpendicular surface E and surface F;

[0014] Right and left end plates, which are detachably connected to the right and left ends of the length direction of the bottom plate, and are parallel to each other and perpendicular to the bottom plate, and the space for placing the special-shaped column tube radiator is formed between the right end plate, the left end plate and the bottom plate;

[0015] Right and left top plates, which are located between the right and left end plates, and the right top plate is movably connected to the right end plate, and the left top plate is movably connected to the left end plate, and the axial clamping space of the special-shaped column tube radiator is formed between the right and left top plates;

[0016] Right and left pressing blocks, wherein the surfaces of the right and left pressing blocks comprise arc surfaces, and the right and left pressing blocks are pressed against different positions of the circumferential surface of the special-shaped column tube radiator through the arc surfaces;

[0017] A positioning mandrel, which is installed on the bottom plate, and the positioning mandrel is inserted into the process hole of the mounting bracket I and the mounting bracket II of the special-shaped column tube radiator, and the mounting bracket I and the mounting bracket II of the special-shaped column tube radiator are fixed through the round nut connected to the end of the positioning mandrel;

[0018] A V-shaped block, which is installed on the bottom plate and between the right and left top plates, and a V-shaped groove is formed on the surface of the V-shaped block, and the V-shaped groove serves as the supporting surface of the circumferential surface of the special-shaped column tube radiator.

[0019] Further, the special-shaped column tube radiator mounting bracket milling tool further comprises:

[0020] Right and left horizontal plates, wherein the first end of the right horizontal plate is connected to the right pressing block, and the second end is connected to the upper end of the right top rod, the first end of the left horizontal plate is connected to the left pressing block, and the second end is connected to the upper end of the left top rod, and through grooves are formed on the right and left horizontal plates;

[0021] Right and left screw rods, wherein the upper end of the right screw rod is connected to the through groove of the right horizontal plate, and the lower end is connected to the bottom plate, and the upper end of the left screw rod is connected to the through groove of the left horizontal plate, and the lower end is connected to the bottom plate.

[0022] Further, the special-shaped column tube radiator mounting bracket milling tool further comprises:

[0023] A first positioning stopper, which is detachably connected to the bottom plate through a pin and a screw, and a first positioning mandrel is detachably connected to the first positioning stopper through hole shaft cooperation, and the first positioning mandrel is connected to the round nut after penetrating the process hole of the mounting bracket I of the special-shaped column tube radiator;

[0024] The second positioning block is detachably connected to the bottom plate through a pin and a screw, and a second positioning mandrel is detachably connected to the second positioning block through a hole shaft fitting.

[0025] Further, the V-shaped blocks include large V-shaped blocks and small V-shaped blocks, the large V-shaped blocks and the small V-shaped blocks are installed on the bottom plate in an interval and are between the right top plate and the left top plate, V-shaped grooves are formed on surfaces of the large V-shaped blocks and the small V-shaped blocks, and the V-shaped grooves serve as support surfaces of the circumferential surface of the special-shaped structure tube radiator.

[0026] Further,

[0027] The right end plate and the left end plate are connected to the bottom plate through a pin and a screw.

[0028] The V-shaped blocks are connected to the bottom plate through a pin and a screw.

[0029] Further, threaded holes are formed in the right end plate and the left end plate, and the right top plate and the left top plate are connected to the threaded holes of the right end plate and the left end plate through threads, so that the distance between the right top plate and the left top plate is adjustable.

[0030] Further, the lower end of the right top plate is connected to the bottom plate, and the lower end of the left top plate is connected to the bottom plate.

[0031] Further, the first positioning mandrel and the first positioning block are in a clearance fit, and the second positioning mandrel and the second positioning block are in a clearance fit.

[0032] A processing method of the special-shaped structure tube radiator mounting bracket, the milling tool is used, and the processing method comprises the following steps:

[0033] Step one, fix the milling tool to the machine tool, ensure that the surface F of the bottom plate is attached to the workbench surface of the machine tool, place the special-shaped structure tube radiator on the V-shaped groove of the V-shaped block in the milling tool, insert the positioning mandrel into the process hole of the mounting bracket I and the mounting bracket II, and tighten the circular nut to preliminarily fix the special-shaped structure tube radiator on the milling tool;

[0034] Step two, adjust the distance between the right top plate and the left top plate, so that the right top plate and the left top plate form axial clamping on the axial end surface of the special-shaped structure tube radiator;

[0035] Step three, adjust the positions of the right pressing block and the left pressing block, so that the arc surfaces of the right pressing block and the left pressing block press and fix the circumferential surface of the special-shaped structure tube radiator;

[0036] Step four, remove the positioning mandrel to leave a processing space for the special-shaped structure tube radiator mounting bracket;

[0037] Step five, the oil inlet and outlet on the special-shaped structure column tube radiator are used as the pre-processing reference of the mounting bracket II to ensure the distance size L between the mounting surface M on the mounting bracket II and the oil inlet and outlet and the size of the mounting surface M itself, then the mounting surface N on the mounting bracket I is processed based on the mounting surface M on the mounting bracket II to ensure the distance size between the mounting surface M and the mounting surface N and the size of the mounting surface N itself, and then the related size processing of the remaining mounting surfaces on the mounting bracket I, the mounting bracket II and the mounting bracket III is completed synchronously;

[0038] Step six, the milling tool is turned over and fixed to the machine tool, the left end plate is ensured to be attached to the machine tool workbench, and the mounting hole processing on the mounting bracket I is completed;

[0039] Step seven, the milling tool is turned over and fixed to the machine tool, the right end plate is ensured to be attached to the machine tool workbench, and the mounting hole processing on the mounting bracket II is completed;

[0040] Step eight, the milling tool is turned over and fixed to the machine tool, the surface E of the bottom plate is ensured to be attached to the machine tool workbench, and the mounting hole processing on the mounting bracket III is completed.

[0041] Further, in the step two, the aluminum sheet is used to fill the contact part between the special-shaped structure column tube radiator and the V-shaped block, so as to fill and eliminate the gap between the two;

[0042] Further, after the step eight, the step nine is further included, the processing process is checked according to the process requirement, the completed special-shaped structure column tube radiator is unloaded from the milling tool of the milling machine, the processing burr is removed, and the cleaning and inspection are performed.

[0043] Compared with the prior art, the present application has the following characteristics:

[0044] 1. The special-shaped structure column tube radiator mounting bracket milling tool can realize the processing of all the mounting surfaces and mounting holes of the mounting bracket I, the mounting bracket II and the mounting bracket III on the special-shaped structure column tube radiator through one-time clamping, and ensure the consistency of the welding reference and the machining reference of the special-shaped structure column tube radiator and the accuracy of positioning;

[0045] 2. The special-shaped structure column tube radiator mounting bracket milling tool can realize the rapid and accurate positioning of the special-shaped structure column tube radiator, and avoid the "lack of meat" of individual mounting brackets in the milling process;

[0046] 3. The left and right top plates and the left and right end plates of the special-shaped structure column tube radiator mounting bracket milling tool are screw-connected, which is convenient for adjusting and clamping the special-shaped structure column tube radiator, and realizes the rapid clamping of the special-shaped structure column tube radiator.

[0047] 4. In the special-shaped structure column tube radiator mounting bracket milling cutter, the bottom plate and the left and right end plates are perpendicular to each other, the upper surface E of the bottom plate is perpendicular to surface F, and when the mounting holes of each mounting bracket are machined by turning the milling cutter, it is not necessary to repeat "leveling" to quickly switch to subsequent processing content;

[0048] 5. The processing method of the special-shaped structure column tube radiator mounting bracket has been applied to the processing of small batches of aviation engine supporting column tube radiator mounting brackets, with stable quality and high processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a right end plate schematic diagram;

[0050] Figure 2 is a right top plate schematic diagram;

[0051] Figure 3 is a right pressing block schematic diagram;

[0052] Figure 4 is a large V-shaped block schematic diagram;

[0053] Figure 5 is a right horizontal plate schematic diagram;

[0054] Figure 6 is a right screw rod schematic diagram;

[0055] Figure 7 is a first positioning mandrel schematic diagram;

[0056] Figure 8 is a right top rod schematic diagram;

[0057] Figure 9 is a first positioning stop block schematic diagram;

[0058] Figure 10 is a round nut schematic diagram;

[0059] Figure 11 is a second positioning stop block schematic diagram;

[0060] Figure 12 is a second positioning mandrel schematic diagram;

[0061] Figure 13 is a bottom plate schematic diagram;

[0062] Figure 14 is a small V-shaped block schematic diagram;

[0063] Figure 15 is a left pressing block schematic diagram;

[0064] Figure 16 is a left horizontal plate schematic diagram;

[0065] Figure 17is the left screw rod schematic diagram;

[0066] Figure 18 is the left top plate schematic diagram

[0067] Figure 19 is the left top rod schematic diagram;

[0068] Figure 20 is the left end plate schematic diagram;

[0069] Figure 21 is the special-shaped structure column tube radiator part drawing;

[0070] Figure 22 is the special-shaped structure column tube radiator milling tool schematic diagram (assembly state);

[0071] In the drawing, 1. right end plate; 2. right top plate; 3. right pressing block; 4. large V-shaped block; 5. right horizontal plate; 6. right screw rod; 7. first positioning mandrel; 8. right top rod; 9. first positioning stop block; 10. round nut; 11. second positioning stop block; 12. second positioning mandrel; 13. bottom plate; 14. small V-shaped block; 15. left pressing block; 16. left horizontal plate; 17. left screw rod; 18. left top plate; 19. left top rod; 20 left end plate. DETAILED DESCRIPTION

[0072] The application will be further described below in conjunction with the drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the application is limited to the following embodiments. Any modifications, replacements and changes made according to the ordinary technical knowledge and common methods in the art without departing from the technical idea of the application are included in the scope of the application.

[0073] As Figure 21 As shown in the drawing, it is a part drawing of the special-shaped structure column tube radiator. The right side is the fuel inlet and outlet end cover, and the surface has oil inlet and outlet. There are three mounting brackets, mounting bracket I, mounting bracket II and mounting bracket III, which need to be processed. Since the column tube radiator is a curved surface structure, the three mounting brackets are distributed at different positions. Figure 21 As shown in the drawing, it is a part drawing of the special-shaped structure column tube radiator. The right side is the fuel inlet and outlet end cover, and the surface has oil inlet and outlet. There are three mounting brackets, mounting bracket I, mounting bracket II and mounting bracket III, which need to be processed. Since the column tube radiator is a curved surface structure, the three mounting brackets are distributed at different positions.

[0074] As Figures 1-20 , Figure 22As shown, it is a special-shaped structure column tube radiator installation support milling tool designed in the embodiment, which comprises a right end plate 1, a right top plate 2, a right pressing block 3, a large V-shaped block 4, a right horizontal plate 5, a right screw rod 6, a first positioning core shaft 7, a right top rod 8, a first positioning stopper 9, a round nut 10, a second positioning stopper 11, a second positioning core shaft 12, a bottom plate 13, a small V-shaped block 14, a left pressing block 15, a left horizontal plate 16, a left screw rod 17, a left top plate 18, a left top rod 19 and a left end plate 20.

[0075] As Figure 13 , the bottom plate 13 is integrally processed, and the surface E and the surface F are in a vertical relationship, so as to ensure that the processing surface and the bottom surface remain vertical after the special-shaped structure column tube radiator is turned over during the processing process, and no "leveling" is performed, and meanwhile the first positioning stopper 9 and the second positioning stopper 11 can be fixed. The cross-sectional shape of the bottom plate 13 is in a broken line shape, comprising a first line segment, a second line segment, a third line segment and a fourth line segment, wherein the second line segment corresponds to the surface F, and the fourth line segment corresponds to the surface E. When the bottom plate 13 is designed, according to the special-shaped structure column tube radiator being placed into the milling tool, the mounting surface of the installation support III is perpendicular to the surface F corresponding to the second line segment as a reference, the included angle between the first line segment and the second line segment is adjusted, or the shape of the first positioning stopper 9 is adjusted, or both are adjusted, so that when the first positioning stopper 9 is installed on the bottom plate 13, the first positioning core shaft 7 thereon can be inserted into the process hole of the installation support I. Similarly, according to the special-shaped structure column tube radiator being placed into the milling tool, the mounting surface of the installation support III is perpendicular to the surface F corresponding to the second line segment as a reference, and the shape of the second positioning stopper 11 is adjusted, so that the second positioning core shaft 12 can be inserted into the process hole of the installation support II.

[0076] As Figure 1 and Figure 20 , the right end plate 1 and the left end plate 20 are provided with pin holes and threaded holes, and after being assembled on the bottom plate 13, the threaded holes on the right end plate 1 and the left end plate 20 are coaxial, and the two end faces of the right end plate 1 and the left end plate 20 are in a parallel relationship after being assembled on the bottom plate 13, and the right end plate 1 and the left end plate 20 are connected with the bottom plate 13 through the pins and the screws.

[0077] As Figure 4 and Figure 14 , the large V-shaped block 4 and the small V-shaped block 14 are V-shaped structures, and have avoidance grooves according to the structure of the special-shaped structure column tube radiator, and are connected with the bottom plate 13 through the pins and the screws.

[0078] As Figure 2 and Figure 18 , the right top plate 2 and the left top plate 18 are both designed with screw rods, which are respectively connected with the right end plate 1 and the left end plate 20 through threads, and the distance adjustment is realized by screwing the threads.

[0079] As Figure 9 and Figure 11The first positioning block 9 and the second positioning block 11 are used for cooperating with the installation positioning mandrel (such as Figure 7 and Figure 12 ), and are connected with the bottom plate 13 through a pin and a screw, and a positioning mandrel hole is designed on the bottom plate 13, so that the positioning mandrel is inserted.

[0080] such as Figure 5 and Figure 16 The right cross plate 5 and the left cross plate 16 are designed with a through slot, and are assembled with the right screw rod 6 ( Figure 6 ), the left screw rod 17 ( Figure 17 ) and the right pressing block 3 ( Figure 3 ), and the left pressing block 15 ( Figure 15 ), the right pressing block 3 and the left pressing block 15 are installed on the right cross plate 5 and the left cross plate 16 through screws, and the right pressing block 3 and the left pressing block 15 can be locked in position through the right screw rod 6 and the left screw rod 17 at the through slot. The functions and effects of the above components are as follows:

[0081] The bottom plate 13 is a base of the milling tool for installing the special-shaped structure tube bank radiator support, and is used for supporting and connecting various components;

[0082] The first positioning block 9 and the second positioning block 11 are fixed on the bottom plate 13 through a pin and a screw, and are mainly used for cooperating with the first positioning mandrel 7 and the second positioning mandrel 12 to fix the installation support I and the installation support II of the special-shaped structure tube bank radiator, and have a preliminary alignment function;

[0083] The right end plate 1 and the left end plate 20 are fixed on the bottom plate 13 through a pin and a screw, and are mainly used for supporting the right top plate 2 and the left top plate 18;

[0084] The large V-shaped block 4 and the small V-shaped block 14 are fixed on the bottom plate 13 through a pin and a screw, and are mainly used for supporting the special-shaped structure tube bank radiator;

[0085] The right top plate 2 and the left top plate 18 are connected with the right end plate 1 and the left end plate 20 through threads, have the effect of screwing and adjusting the distance, and are mainly moved through screwing and adjusting, and axially support and fix the special-shaped structure tube bank radiator;

[0086] The right cross plate 5 and the left cross plate 16 are connected with the right top rod 8 and the left top rod 19 through threads, and the right screw rod 6 and the left screw rod 17 are adjusted, and the right pressing block 3 and the left pressing block 15 are adjusted, so as to tightly fix the special-shaped structure tube bank radiator.

[0087] The milling tool of the application has the following four aspects as the design core points:

[0088] 1. In the design of the machining scheme, the mounting surface and mounting hole of the mounting bracket I, the mounting bracket II and the mounting bracket III are reserved with post-weld machining allowance to avoid the risk of "lack of meat" caused by insufficient allowance of the surface and hole after welding due to welding deformation; at the same time, the machining sequence and pre-machining reference are determined in the design of the machining scheme, thereby avoiding the risk of misplacement of the core subassembly and the oil inlet and outlet connection.

[0089] 2. In the development of the post-weld machining scheme of the mounting bracket I, the mounting bracket II and the mounting bracket III, first, a special milling tool is designed in combination with the positioning mode during welding to ensure that the mounting bracket I, the mounting bracket II and the mounting bracket III are consistent with the welding positioning mode, and the first positioning core shaft 7 and the second positioning core shaft 12 in the first positioning block 9 and the second positioning block 11 are coordinated with the welding positioning core shaft.

[0090] 3. In the milling tool for the mounting bracket of the special-shaped structure tube bank radiator, the right top plate 2 and the left top plate 18 are threadedly connected with the right end plate 1 and the left end plate 20, and when the special-shaped structure tube bank radiator is clamped, after the first positioning core shaft 7 and the second positioning core shaft 12 in the first positioning block 9 and the second positioning block 11 and the welding positioning core shaft complete the preliminary positioning of the mounting bracket I and the mounting bracket II of the special-shaped structure tube bank radiator, the right top plate 2 and the left top plate 18 can be adjusted and supported by screwing.

[0091] 4. In the design of the milling tool for the mounting bracket of the special-shaped structure tube bank radiator, the right end plate 1 and the left end plate 20 are perpendicular to the bottom plate 13, the left end plate 2 and the right end plate 3 are parallel to each other, the bottom plate 13 is integrally machined, and the surface E and the surface F are perpendicular to each other to ensure that the processing surface and the bottom surface remain perpendicular after the special-shaped structure tube bank radiator is turned over during processing, and the subsequent processing content can be quickly switched without "leveling".

[0092] The processing method of the mounting bracket of the special-shaped structure tube bank radiator using the above milling tool includes the following steps:

[0093] Step one, fix the milling tool to the machine tool to ensure that the surface F of the bottom plate 13 is attached to the machine tool workbench, place the special-shaped structure tube bank radiator on the V-shaped groove of the large V-shaped block 4 and the small V-shaped block 14 in the milling tool, insert the first positioning core shaft 7 and the second positioning core shaft 12 into the process holes of the mounting bracket I and the mounting bracket II, and tighten them with the round nut 10 to preliminarily fix the special-shaped structure tube bank radiator on the milling tool, at this time, the mounting surface of the mounting bracket III is perpendicular to the surface F of the bottom plate 13;

[0094] Step two, rotate the right top plate 2 and the left top plate 18 to support the axial end surface of the special-shaped structure tube bank radiator, and fill and eliminate the gap between the special-shaped structure tube bank radiator and the large V-shaped block 4 and the small V-shaped block 14 by using aluminum sheets or the like.

[0095] Step three, adjust the nut on the upper end of the right screw rod 6 and the left screw rod 17, lock the position of the right pressing block 3 and the left pressing block 15, so that the upper arc surface of the right pressing block 3 and the left pressing block 15 clamps and fixes the special-shaped structure column tube radiator;

[0096] Step four, remove the first positioning mandrel 7 and the second positioning mandrel 12 and the first positioning stopper 9 and the second positioning stopper 11, and leave the processing space of the special-shaped structure column tube radiator mounting bracket I and the mounting bracket II;

[0097] Step five, as shown in the figure, take the lubricating oil inlet and outlet as the pre-processing reference of the mounting surface M on the mounting bracket II, ensure the size L of the lubricating oil inlet and outlet and the self size of the mounting surface M, then process based on the mounting surface M of the mounting bracket II, ensure the size between the mounting surface M and the mounting surface N on the mounting bracket I and the self size of the mounting surface N, and then synchronously complete the related size processing of the remaining mounting surfaces on the mounting bracket I, the mounting bracket II and the mounting bracket III; Figure 21

[0098] Step six, turn over the milling tool and fix it to the machine tool, ensure that the left end plate 20 is attached to the machine tool workbench, and complete the processing of the mounting hole on the mounting bracket I;

[0099] Step seven, turn over the milling tool and fix it to the machine tool, ensure that the right end plate 1 is attached to the machine tool workbench, and complete the processing of the mounting hole on the mounting bracket II;

[0100] Step eight, turn over the milling tool and fix it to the machine tool, ensure that the surface E of the bottom plate 13 is attached to the machine tool workbench, and complete the processing of the mounting hole on the mounting bracket III;

[0101] Step nine, according to the process requirements, check the processing process, complete the processing, remove the completed special-shaped structure column tube radiator from the milling machine clamp, remove the processing burrs, and clean up the inspection.

[0102] The special-shaped structure column tube radiator mounting bracket processing method mainly realizes rapid and accurate positioning of the special-shaped structure column tube radiator through the milling tool, determines the processing reference, and realizes one-time clamping processing of the mounting hole and the mounting surface of the mounting bracket.

[0103] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​

Claims

1. A method for processing a mounting bracket for an irregularly shaped tube radiator, characterized in that: The milling tools used include: The base plate (13) includes mutually perpendicular surfaces E and F; The right end plate (1) and the left end plate (20) are detachably connected to the right and left ends of the base plate (13) along the length direction, and the right end plate (1) and the left end plate (20) are parallel to each other and perpendicular to the base plate (13). A space for placing the irregularly shaped tube heat sink is formed between the right end plate (1), the left end plate (20) and the base plate (13). The right top plate (2) and the left top plate (18) are located between the right end plate (1) and the left end plate (20), and the right top plate (2) is movably connected to the right end plate (1), and the left top plate (18) is movably connected to the left end plate (20). An axial clamping space for a shaped tube radiator is formed between the right top plate (2) and the left top plate (18). Right pressure block (3) and left pressure block (15), the surfaces of the right pressure block (3) and left pressure block (15) include arc-shaped surfaces, and the right pressure block (3) and left pressure block (15) are pressed against different positions on the circumferential surface of the irregularly shaped tube radiator through the arc-shaped surfaces; The positioning mandrel is installed on the base plate (13) and inserted into the process holes of the mounting bracket I and mounting bracket II of the irregular structure tube heat sink. The mounting bracket I and mounting bracket II of the irregular structure tube heat sink are fixed by the round nut (10) connected to the end of the positioning mandrel. V-shaped block, the V-shaped block is installed on the base plate (13) and is located between the right top plate (2) and the left top plate (18). The surface of the V-shaped block has a V-shaped groove, which serves as the support surface for the circumferential surface of the irregular structure tube radiator. The processing method includes the following steps: Step 1: Fix the milling machine onto the machine tool, ensuring that the surface F of the base plate (13) fits against the machine tool worktable. Place the irregularly shaped tube heat sink on the V-shaped groove of the V-block inside the milling machine, insert the positioning mandrel into the process holes of the mounting bracket I and mounting bracket II, and tighten it with the round nut (10) to initially fix the irregularly shaped tube heat sink on the milling machine. Step 2: By adjusting the distance between the right top plate (2) and the left top plate (18), the right top plate (2) and the left top plate (18) form an axial clamp on the axial end face of the irregular structure tube radiator. Step 3: Adjust the positions of the right pressure block (3) and the left pressure block (15) so that the arc-shaped surfaces of the right pressure block (3) and the left pressure block (15) press and fix the circumferential surface of the irregularly shaped tube radiator. Step 4: Remove the positioning mandrel to make room for machining the mounting bracket of the irregularly shaped tube radiator; Step 5: Using the lubricating oil inlet and outlet on the irregularly shaped tube radiator as the pre-processing reference for mounting bracket II, ensure the distance L between mounting surface M and the lubricating oil inlet and outlet on mounting bracket II, as well as the dimensions of mounting surface M itself. Then, using mounting surface M on mounting bracket II as the reference, process mounting surface N on mounting bracket I, ensuring the distance between mounting surface M and mounting surface N, as well as the dimensions of mounting surface N itself. Simultaneously complete the processing of the relevant dimensions of the remaining mounting surfaces on mounting bracket I, mounting bracket II, and mounting bracket III. Step 6: Flip the milling machine and fix it to the machine tool, ensuring that the left end plate (20) fits against the machine tool worktable, and complete the machining of the mounting holes on the mounting bracket I; Step 7: Flip the milling machine and fix it to the machine tool, ensuring that the right end plate (1) is attached to the machine tool worktable, and complete the machining of the mounting holes on the mounting bracket II; Step 8: Flip the milling tool and fix it to the machine tool, ensuring that the surface E of the base plate (13) is in contact with the machine tool worktable, and complete the machining of the mounting holes on the mounting bracket Ⅲ.

2. The method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 1, characterized in that: Step two also includes filling the contact area between the irregularly shaped tube heat sink and the V-shaped block with aluminum sheets to fill and eliminate the gap between them. Step eight is followed by step nine, which involves inspecting the processing according to the process requirements, removing the finished irregular-shaped tube radiator from the milling machine, removing the burrs, cleaning and inspecting it.

3. The method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 1, characterized in that, The milling tool also includes: The right horizontal plate (5) and the left horizontal plate (16) are connected to the right pressure block (3) at the first end and to the upper end of the right top rod (8) at the second end. The left horizontal plate (16) is connected to the left pressure block (15) at the first end and to the upper end of the left top rod (19) at the second end. Both the right horizontal plate (5) and the left horizontal plate (16) have through slots. The right screw (6) and the left screw (17) are connected to the upper end of the right horizontal plate (5) through groove and the lower end of the left screw (17) through groove and the lower end of the left screw (17) through groove and the lower end of the left screw (17) through groove.

4. The method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 1, characterized in that, The milling tool also includes: The first positioning block (9) is detachably connected to the base plate (13) by a pin and screw. The first positioning block (9) is detachably connected to the first positioning spindle (7) by a hole and shaft. The first positioning spindle (7) passes through the process hole of the mounting bracket I on the irregular structure tube heat sink and is connected to the round nut (10). The second positioning block (11) is detachably connected to the base plate (13) by a pin and screw. The second positioning block (11) is detachably connected to the second positioning mandrel (12) by a hole-shaft fit. The second positioning mandrel (12) passes through the process hole of the mounting bracket II on the irregular structure tube heat sink and is connected to the round nut (10).

5. The method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 1, characterized in that: The V-shaped block includes a large V-shaped block (4) and a small V-shaped block (14). The large V-shaped block (4) and the small V-shaped block (14) are installed on the base plate (13) at intervals and are located between the right top plate (2) and the left top plate (18). The surfaces of the large V-shaped block (4) and the small V-shaped block (14) are all provided with V-shaped grooves. The V-shaped grooves serve as the support surface for the circumferential surface of the irregularly shaped tube radiator.

6. The method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 1, characterized in that: The right end plate (1) and the left end plate (20) are both connected to the base plate (13) by pins and screws; The V-block is connected to the base plate (13) by pins and screws.

7. The method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 1, characterized in that: The right end plate (1) and the left end plate (20) have threaded holes. The right top plate (2) and the left top plate (18) are connected to the threaded holes of the right end plate (1) and the left end plate (20) respectively by threads, so that the distance between the right top plate (2) and the left top plate (18) is adjustable.

8. A method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 3, characterized in that: The lower end of the right push rod (8) is connected to the base plate (13), and the lower end of the left push rod (19) is connected to the base plate (13).

9. A method for processing a mounting bracket for an irregularly shaped tube radiator according to claim 4, characterized in that: The first positioning mandrel (7) and the first positioning stop (9) are in clearance fit, and the second positioning mandrel (12) and the second positioning stop (11) are in clearance fit.

Images