Flaring machining device for condensation guide pipe made of aluminum alloy

Abstract

The utility model relates to the technical field of condensing conduit processing, in particular to a condensing conduit flaring processing device made of aluminum alloy, which comprises a forming die core, the upper side of the forming die core is of a disc-shaped structure, and the lower side of the forming die core is matched with the inner contour shape of a condensing conduit; the middle of the forming die holder is of a penetrating structure, and the interior of the forming die holder is matched with the outer contour shape of the condensation guide pipe; the middle of the supporting base is of a penetrating structure, the top of the supporting base is embedded with the bottom of the forming die holder, the upper-side interior is matched with the bottom excircle of the condensation guide pipe, and the lower-side interior is in clearance fit with the bottom excircle of the forming die core; the middle of the auxiliary discharging plate is of a penetrating structure, the auxiliary discharging plate is arranged on the forming die core in a sleeving mode and matched with the upper side of the forming die core, and the lower end of the auxiliary discharging plate is attached to the top of the condensation guide pipe and the upper end of the forming die base. According to the utility model, the problems that the pipe orifice size is out of tolerance, the product size consistency is poor and the pipe orifice splicing is not facilitated due to thermal expansion and cold contraction of a product in the turning rotary feeding machining process are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to condensing duct processing technical field, specifically is a condensing duct flaring device of material is aluminium alloy. BACKGROUND

[0002] Condensing duct is mainly used for airplane control system cooling, ensures that control system can work normally, according to use function and use scene requirement, needs to complete fixed formation a closed pipeline through welding to different specification aperture duct, to reach use function requirement.

[0003] Traditional duct flaring processing is first processing a mandrel, installs mandrel on ordinary lathe, carries out duct flaring processing through using mandrel extrusion orifice, needs reciprocating motion and timely adds lubricating grease to ensure that mandrel and aluminium pipe are lubricated and cooled during processing, finally completes the flaring processing of duct, and its structure is as shown in Figure 1

[0004] The operation mode is in the processing process due to the rotation feed, the product size is out of tolerance due to thermal expansion and contraction during processing, the product size consistency is poor, which is not conducive to the splicing of the duct, and a sequence of shape correction is needed to ensure that the orifice roundness of the flared duct meets the welding requirements, and the inner wall surface of the duct is easy to scratch. For the size of the scratch, it cannot be removed by polishing, which ultimately leads to the scrap of the product, so it is necessary to screen out the finished product that meets the technical requirements from the flared duct, which leads to low flared duct processing qualification rate, relatively long product delivery cycle and low production efficiency. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a condensing duct flaring device of material is aluminium alloy.

[0006] The technical problem to be solved by the utility model is realized by the following technical scheme:

[0007] A condensing duct flaring device of material is aluminium alloy, comprising:

[0008] The upper side is a disc-shaped structure, and the lower side is matched with the internal contour shape of the condensing duct;

[0009] The middle part is a through structure, and the inside is matched with the external contour shape of the condensing duct;

[0010] The middle part is a through structure, and the top is embedded with the bottom of the forming die seat, the upper inside is matched with the bottom outer circle of the condensing duct, and the lower inside is matched with the bottom outer circle gap of the forming die core;

[0011] ​The auxiliary discharge plate is sleeved on the molding core and matched with the upper side of the molding core, and the lower end is attached to the top of the condensing pipe and the upper end of the molding seat.

[0012] As a further improvement of the utility model, the upper side of the molding core comprises a molding core upper end face, a molding core first outer circular surface and a molding core third outer circular surface, and the lower side of the molding core comprises a molding core second outer circular surface and a molding core third outer circular surface.

[0013] As a further improvement of the utility model, the auxiliary discharge plate comprises an auxiliary discharge plate bottom face attached to the top of the condensing pipe and the upper end of the molding seat, an auxiliary discharge plate first inner hole cylindrical surface matched with the molding core second outer circular surface, an auxiliary discharge plate inner bottom face attached to the molding core third outer circular surface, an auxiliary discharge plate second inner hole cylindrical surface matched with the molding core first outer circular surface and an auxiliary discharge plate upper end face.

[0014] As a further improvement of the utility model, the height of the molding core upper end face is 2mm higher than the height of the auxiliary discharge plate upper end face.

[0015] As a further improvement of the utility model, the molding seat comprises a molding seat upper end face attached to the auxiliary discharge plate bottom face, a molding seat inner top end face attached to the top of the supporting base, a molding seat inner tapered surface matched with the supporting base and a molding seat lower end face.

[0016] As a further improvement of the utility model, the supporting base comprises a supporting base upper end face attached to the molding seat inner top end face, a supporting base outer tapered surface attached to the molding seat inner tapered surface, a supporting base first inner hole cylindrical surface matched with the outer circle of the bottom of the condensing pipe, a supporting base inner bottom face attached to the bottom end face of the condensing pipe, a supporting base second inner hole cylindrical surface matched with the molding core third outer circular surface and a supporting base lower end face.

[0017] As a further improvement of the utility model, the supporting base comprises a supporting base parallel end face located at the bottom of the supporting base outer tapered surface.

[0018] As a further improvement of the utility model, the supporting base parallel end face is kept parallel to the molding seat lower end face.

[0019] The utility model has the advantages of:

[0020] The utility model provides a kind of condensing duct flaring processing device of material is aluminium alloy, with simple operation, processing cost is low, reduce the skill requirement level of production personnel simultaneously, improve the characteristics such as duct flaring processing efficiency, by canceling the operation mode of traditional lathe processing flaring, effectively solve the size of pipe opening size out-of-tolerance caused by product thermal expansion and contraction in the process of using lathe processing rotary feed processing, product size consistency is poor, it is not conducive to the problem of duct orifice splicing, greatly guarantee the orifice roundness requirement after duct flaring processing, improve flaring quality stability and consistency.Simultaneously, by the independently arranged forming mould core, forming mould base, support base and auxiliary discharge plate, it is convenient to pick up after duct processing is completed, it is to a certain extent to reduce the orifice deformation and surface scratch condition that appear in the product pick-up process due to pick-up difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model is further described below in connection with drawings and examples:

[0022] Figure 1 It is condensing duct structure schematic diagram;

[0023] Figure 2 It is the sectional structure schematic diagram of the utility model;

[0024] Figure 3 It is the forming mould core structure schematic diagram in the utility model;

[0025] Figure 4 It is the sectional structure schematic diagram of forming mould base in the utility model;

[0026] Figure 5 It is the sectional structure schematic diagram of support base in the utility model;

[0027] Figure 6 It is the sectional structure schematic diagram of auxiliary discharge plate in the utility model;

[0028] Figure 7 It is the overhead structure schematic diagram of auxiliary discharge plate in the utility model.

[0029] In the figure: 1, forming mold core; 101, upper end surface of forming mold core; 102, first outer circular surface of forming mold core; 103, lower end surface of forming mold core; 104, second outer circular surface of forming mold core; 105, third outer circular surface of forming mold core; 2, forming mold base; 201, upper end surface of forming mold base; 202, inner top end surface of forming mold base; 203, inner tapered surface of forming mold base; 204, lower end surface of forming mold base; 3, supporting base; 301, parallel end surface of supporting base; 302, outer tapered surface of supporting base; 303, first inner hole cylindrical surface of supporting base; 304, inner bottom surface of supporting base; 305, second inner hole cylindrical surface of supporting base; 306, upper end surface of supporting base; 307, lower end surface of supporting base; 4, auxiliary unloading plate; 401, bottom surface of auxiliary unloading plate; 402, first inner hole cylindrical surface of auxiliary unloading plate; 403, inner bottom surface of auxiliary unloading plate; 404, second inner hole cylindrical surface of auxiliary unloading plate; 405, upper end surface of auxiliary unloading plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with the drawings and examples.

[0031] As shown in Figures 2 to 7 A condensing guide pipe flaring processing device with aluminum alloy material, comprising a forming mold core 1, a forming mold base 2, a supporting base 3 and an auxiliary unloading plate 4.

[0032] The upper side of the forming mold core 1 is in a disc-shaped structure, specifically comprising a forming mold core upper end surface 101, a first outer circular surface of the forming mold core 102, a lower end surface of the forming mold core 103, the lower side of the forming mold core 1 comprising a second outer circular surface of the forming mold core 104 and a third outer circular surface of the forming mold core 105.

[0033] The middle part of the forming mold base 2 is in a through structure, comprising a forming mold base upper end surface 201, a forming mold base inner top end surface 202, a forming mold base inner tapered surface 203 and a forming mold base lower end surface 204.

[0034] The middle part of the supporting base 3 is in a through structure, comprising a supporting base parallel end surface 301, a supporting base outer tapered surface 302, a supporting base first inner hole cylindrical surface 303, a supporting base inner bottom surface 304, a supporting base second inner hole cylindrical surface 305, a supporting base upper end surface 306 and a supporting base lower end surface 307.

[0035] The middle part of the auxiliary unloading plate 4 is in a through structure, comprising an auxiliary unloading plate bottom surface 401, an auxiliary unloading plate first inner hole cylindrical surface 402, an auxiliary unloading plate inner bottom surface 403, an auxiliary unloading plate second inner hole cylindrical surface 404 and an auxiliary unloading plate upper end surface 405.

[0036] Further, the height of the upper end surface 101 of the forming mold core is about 2mm higher than the height of the upper end surface 405 of the auxiliary stripping plate; the lower end surface 103 of the forming mold core is attached to the inner bottom surface 403 of the auxiliary stripping plate; the first outer circular surface 102 of the forming mold core is matched with the second inner hole cylindrical surface 404 of the auxiliary stripping plate with a gap of 0.02mm, and the coaxiality tolerance is not more than 0.02mm; the second outer circular surface 104 of the forming mold core is matched with the first inner hole cylindrical surface 402 of the auxiliary stripping plate with a gap of 0.02mm, and the coaxiality tolerance is not more than 0.02mm; the third outer circular surface 105 of the forming mold core is matched with the second inner hole cylindrical surface 305 of the supporting base with a gap of 0.02mm, and the coaxiality tolerance is not more than 0.02mm.

[0037] Further, the upper end surface 201 of the forming mold base is attached to the bottom surface 401 of the auxiliary stripping plate, the inner top end surface 202 of the forming mold base is attached to the upper end surface 306 of the supporting base, the inner tapered surface 203 of the forming mold base is attached to the outer tapered surface 302 of the supporting base, and the lower end surface 204 of the forming mold base is parallel to the parallel end surface 301 of the supporting base.

[0038] Further, the first inner hole cylindrical surface 303 of the supporting base is matched with the outer circle of the bottom of the condensing pipe with a gap of 0.01mm; the inner bottom surface 304 of the supporting base is attached to the bottom end surface of the condensing pipe; the second inner hole cylindrical surface 305 of the supporting base is matched with the third outer circular surface 105 of the forming mold core with a gap of 0.02mm, and the coaxiality tolerance is not more than 0.02mm.

[0039] The working principle and use process of the utility model:

[0040] Firstly, the assembly of the forming mold base 2 and the supporting base 3 is completed according to the drawing, the tapered surface between the forming mold base 2 and the supporting base 3 is attached without gap and misalignment, then the assembly of the auxiliary stripping plate 4 and the forming mold core 1 is completed in turn, the end surface between the forming mold core 1 and the auxiliary stripping plate 4 is attached without gap, and the device can be flexibly opened without jamming.

[0041] After the assembly of the device is completed, the device is placed on the workbench of the manual press, the inner and outer circular surfaces of the condensing pipe needing to be flared are evenly smeared with lubricating grease, the auxiliary stripping plate 4 and the forming mold core 1 are taken down in turn, the condensing pipe is placed into the cavity of the forming mold base 2 and the supporting base 3, it is ensured that one end is attached to the bottom surface of the supporting base 3, the taken-down auxiliary stripping plate 4 and forming mold core 1 are assembled in turn, like Figure 2The pressure machine is operated to apply pressure to the forming mold core 1, ensure the forming mold base 2 to be attached to the auxiliary stripping plate 4, and then the auxiliary stripping plate 4, the forming mold core 1 and the supporting base 3 are taken out in sequence, the condensing pipe which has completed the flaring processing is taken out, and the flaring processing of the condensing pipe is finally completed.

[0042] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for flaring a condenser tube made of an aluminum alloy, characterized by: The application relates to a forming mold core (1), a forming mold base (2), a supporting base (3) and an auxiliary discharging plate (4). The upper side of the forming mold core (1) is in a disc-shaped structure and is matched with the internal profile shape of a condensing duct; the middle part of the forming mold base (2) is in a through structure and is matched with the external profile shape of the condensing duct; the middle part of the supporting base (3) is in a through structure, the top part is embedded with the bottom part of the forming mold base (2), the upper side is matched with the bottom part of the condensing duct, and the lower side is matched with the bottom part of the forming mold core (1); the middle part of the auxiliary discharging plate (4) is in a through structure, the auxiliary discharging plate (4) is sleeved on the forming mold core (1) and is matched with the upper side of the forming mold core (1), and the lower end part is matched with the top part of the condensing duct and the upper end part of the forming mold base (2). The upper side of the forming mold core (1) comprises a forming mold core upper end surface (101), a forming mold core first outer circular surface (102) and a forming mold core lower end surface (103), and the lower side of the forming mold core (1) comprises a forming mold core second outer circular surface (104) and a forming mold core third outer circular surface (105). The auxiliary discharging plate (4) comprises an auxiliary discharging plate bottom surface (401) matched with the top part of the condensing duct and the upper end part of the forming mold base (2), an auxiliary discharging plate first inner hole cylindrical surface (402) matched with the forming mold core second outer circular surface (104) in a clearance fit, an auxiliary discharging plate inner bottom surface (403) matched with the forming mold core lower end surface (103), an auxiliary discharging plate second inner hole cylindrical surface (404) matched with the forming mold core first outer circular surface (102) in a clearance fit, and an auxiliary discharging plate upper end surface (405). The height of the forming mold core upper end surface (101) is 2mm higher than the height of the auxiliary discharging plate upper end surface (405).

2. The device for flaring the condenser pipe made of aluminum alloy according to claim 1, wherein: The forming mold base (2) comprises a forming mold base upper end surface (201) matched with the auxiliary discharging plate bottom surface (401), a forming mold base inner top end surface (202) matched with the top part of the supporting base (3), a forming mold base inner tapered surface (203) matched with the supporting base (3), and a forming mold base lower end surface (204).

3. The device for flaring the condenser pipe made of aluminum alloy according to claim 2, characterized in that: The supporting base (3) comprises a supporting base upper end surface (306) matched with the forming mold base inner top end surface (202), a supporting base outer tapered surface (302) matched with the forming mold base inner tapered surface (203), a supporting base first inner hole cylindrical surface (303) matched with the bottom part of the condensing duct in a clearance fit, a supporting base inner bottom surface (304) matched with the bottom end surface of the condensing duct, a supporting base second inner hole cylindrical surface (305) matched with the forming mold core third outer circular surface (105) in a clearance fit, and a supporting base lower end surface (307).

4. The device for flaring the condenser pipe made of aluminum alloy according to claim 3, wherein: The supporting base (3) comprises a supporting base parallel end surface (301) located at the bottom part of the supporting base outer tapered surface (302).

5. The apparatus for flaring the condenser pipe made of aluminum alloy according to claim 3, wherein: The supporting base parallel end surface (301) is kept parallel with the forming mold base lower end surface (204).

6. The apparatus for flaring a condenser tube of aluminum alloy as claimed in claim 5, wherein: ​ 7. The apparatus for flaring a condenser tube of aluminum alloy as claimed in claim 6, wherein: ​ 8. The apparatus for flaring a condenser tube of aluminum alloy as claimed in claim 7, wherein: ​

Images