Machining device for fixing plate and clamping ring at rear end of heat exchanger

Abstract

The utility model discloses a machining device for a fixing plate and a clamping ring at the rear end of a heat exchanger. Comprising an upper template (1) and a lower template (2), a stamping ring (3) is fixed on the lower surface of the upper template (1), and an arc-shaped punch (4) is arranged on the lower surface of the upper template (1) close to the central position of the stamping ring (3); a forming die core (5) is arranged on the upper surface of the lower die plate (2), an arc-shaped punching groove (6) is formed in the forming die core (5), the arc-shaped punch (4) is matched with the arc-shaped punching groove (6) to be used for punching a clamping ring, and the punching ring (3) is matched with the outer edge of the forming die core (5) to be used for punching a rear end fixing plate. The device is high in machining efficiency and stable and reliable in machining quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of aviation mold processing, and particularly relates to a processing device for a rear end fixing plate and a clamping ring of a heat exchanger. Background Art

[0002] Mechanical aviation system structural parts include rear end fixing plates and retaining rings with flange structures. These parts have uniform wall thickness and are affected by assembly relationships, requiring certain dimensional accuracy. However, the overall processing system has poor rigidity and is prone to deformation during processing. The traditional processing solution is to use multiple sets of molds for processing and then machining. Each set of molds is responsible for different processing states. Although the final product effect can be achieved through multiple sets of molds, the mold investment cost is high and the part processing cycle is long. When mass production is carried out, this processing mode can no longer meet the production delivery needs. Utility Model Content

[0003] The purpose of the utility model is to provide a processing device with high processing efficiency, stable and reliable quality, and capable of meeting the needs of batch production and processing of composite stations.

[0004] The technical solution of the utility model is: a processing device for the rear end fixing plate and the clamping ring of the heat exchanger, comprising an upper template and a lower template, a stamping ring is fixed on the lower surface of the upper template, and an arc-shaped punch is provided on the lower surface of the upper template near the center position of the stamping ring; the upper surface of the lower template is provided with a forming core, and the forming core is provided with an arc-shaped groove, the arc-shaped punch and the arc-shaped groove are used to punch the clamping ring, and the stamping ring and the outer edge of the forming core are used to punch the rear end fixing plate.

[0005] In the aforementioned processing device for the rear end fixing plate and the clamping ring of the heat exchanger, the outer edge of the forming mold core is also provided with a pressure ring that can slide along its axial direction. The pressure ring is connected to the lower top plate via the lower ejector rod A passing through the lower template.

[0006] In the aforementioned processing device for the rear end fixing plate and the clamping ring of the heat exchanger, an arc-shaped top block is slidably connected in the arc-shaped punching groove, and the top block is connected to the lower top plate via a lower top rod B passing through the lower template.

[0007] In the aforementioned processing device for the rear end fixing plate and the clamping ring of the heat exchanger, a stripping plate capable of sliding axially is concentrically provided inside the stamping ring, and an arc-shaped through hole is provided on the stripping plate, which is slidably connected to the arc-shaped punch.

[0008] In the aforementioned processing device for the rear end fixing plate and the clamping ring of the heat exchanger, the unloading plate is connected to the upper top plate via an upper ejector rod passing through the upper template.

[0009] In the aforementioned processing device for the rear end fixing plate and the clamping ring of the heat exchanger, the upper top plate is supported by the elastic element; the lower top plate is supported by the top cylinder of the punch press.

[0010] In the aforementioned processing device for the rear end fixing plate and the clamping ring of the heat exchanger, the upper template is equipped with a guide column, and the forming mold core is provided with a guide hole, and the guide column is slidably connected to the guide hole.

[0011] The advantages of the present invention are as follows: the present invention uses one processing device to achieve the functions of multiple processing devices, thereby reducing processing costs. The device is equipped with an automatic unloading device, which replaces manual operation and reduces labor intensity. The unloading device of the device performs operations in steps, and different unloading requirements are achieved at different positions. The device has multiple workstations and can realize the simultaneous processing of two parts and multiple quantities. The device has a built-in part leveling function, which replaces the manual leveling technology of the original device after processing the parts. The device uses an internal guide instead of an external guide, replacing the traditional mold test of external guide pins and guide sleeves, thereby saving materials and space.

[0012] In summary, the utility model has high processing efficiency, good precision control, stable and reliable quality, and can meet the processing requirements of mass production of fixing plates and clamping rings with flip-hole structures without deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the assembly of the utility model;

[0014] Figure 2 It is a three-dimensional diagram of the utility model;

[0015] Figure 3 This is an exploded view of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0017] Example 1. A processing device for the rear end fixing plate and the clamping ring of a heat exchanger, see Figure 1-Figure 3 , including an upper template 1 and a lower template 2, a stamping ring 3 is fixed on the lower surface of the upper template 1, and an arc-shaped punch 4 is provided on the lower surface of the upper template 1 near the center position of the stamping ring 3; the upper surface of the lower template 2 is provided with a forming core 5, and the forming core 5 is provided with an arc-shaped groove 6. The arc-shaped punch 4 and the arc-shaped groove 6 are used to punch the retaining ring, and the stamping ring 3 and the outer edge of the forming core 5 are used to punch the rear end fixed plate.

[0018] The outer edge of the aforementioned forming mold core 5 is also covered with a pressure ring 7 that can slide along its axial direction. The pressure ring 7 is connected to the lower top plate 9 via a lower ejector rod A8 passing through the lower mold plate 2.

[0019] An arc-shaped top block 10 is slidably connected in the aforementioned arc-shaped punching groove 6 , and the top block 10 is connected to the lower top plate 9 via a lower top rod B11 passing through the lower template 2 .

[0020] A stripper plate 12 that can slide in the axial direction is concentrically provided in the aforementioned punching ring 3 . An arcuate through hole 13 is provided on the stripper plate 12 . The arcuate through hole 13 is slidably connected to the arcuate punch 4 .

[0021] The aforementioned stripper plate 12 is connected to the upper ejector plate 15 via an upper ejector rod 14 passing through the upper template 1 .

[0022] The upper top plate 15 is supported by the elastic element 16; the lower top plate 9 is supported by the top cylinder of the punch press.

[0023] The upper mold plate 1 is provided with a guide post 17 , and the forming mold core 5 is provided with a guide hole 18 , and the guide post 17 is slidably connected to the guide hole 18 .

[0024] The processing method is as follows:

[0025] S11, fixing the upper and lower templates on the machine tool by screw fasteners;

[0026] S12, the machine tool returns to separate the upper and lower templates;

[0027] S13, the ring plate to be formed is placed on the outer edge of the forming mold core 5 and supported by the blank holder 7, and the arc plate to be formed is placed in the notch of the arc punching groove 6 and supported by the top block 10 and the forming mold core 5;

[0028] S14, the upper template 1 moves downward, the punching ring 3 cooperates with the outer edge of the forming die core 5 to punch and flanging the inner hole of the ring plate, and the arc punch 4 cooperates with the arc punching groove 6 to punch and form the arc plate to form a clamping ring; during the punching process, the arc top block 10 and the blank holder 7 gradually move downward under the support of the lower top plate 9;

[0029] S15, after the stamping is completed, the upper mold plate 1 moves upward to allow the elastic element 16 to expand. At this time, the elastic element 16 expands and pushes the unloading plate 12 downward through the upper ejector plate 15 and the upper ejector rod 14, pushing the formed snap ring and the flanged ring plate out of the arc punch 4 and the stamping ring 3 respectively, completing the unloading. When the snap ring is stuck in the arc-shaped punch groove 6 and / or the flanged ring plate is stuck on the outer circumference of the forming core 5, the arc-shaped ejector block 10 and / or the blank holder 7 are pushed upward via the lower ejector plate 9, pushing the snap ring and / or the ring plate out of the arc-shaped punch groove 6 and / or the outer circumference of the forming core 5, completing the unloading.

Claims

1. A processing device for a heat exchanger rear end fixing plate and a clamping ring, characterized in that: The invention comprises an upper template (1) and a lower template (2), wherein a punching ring (3) is fixed on the lower surface of the upper template (1), and an arc-shaped punch (4) is provided on the lower surface of the upper template (1) near the center of the punching ring (3); a forming die core (5) is provided on the upper surface of the lower template (2), and an arc-shaped punching groove (6) is provided on the forming die core (5); the arc-shaped punch (4) and the arc-shaped punching groove (6) cooperate to punch the clamping ring, and the punching ring (3) cooperates with the outer edge of the forming die core (5) to punch the rear end fixing plate.

2. The processing device for the rear end fixing plate and the clamping ring of the heat exchanger according to claim 1, characterized in that: The outer edge of the forming mold core (5) is also provided with a pressure ring (7) that can slide along its axial direction. The pressure ring (7) is connected to the lower top plate (9) via a lower push rod A (8) that passes through the lower mold plate (2).

3. The processing device for the rear end fixing plate and the clamping ring of the heat exchanger according to claim 1, characterized in that: An arc-shaped top block (10) is slidably connected in the arc-shaped punching groove (6), and the top block (10) is connected to the lower top plate (9) via a lower top rod B (11) passing through the lower template (2).

4. The processing device for the rear end fixing plate and the clamping ring of the heat exchanger according to claim 1, characterized in that: A stripping plate (12) capable of sliding in the axial direction is coaxially arranged in the punching ring (3); an arcuate through hole (13) is provided on the stripping plate (12); and the arcuate through hole (13) is slidably connected to the arcuate punch (4).

5. The processing device for the rear end fixing plate and the clamping ring of the heat exchanger according to claim 1, characterized in that: The stripping plate (12) is connected to the upper top plate (15) via an upper push rod (14) passing through the upper template (1).

6. The processing device for the rear end fixing plate and the clamping ring of the heat exchanger according to claim 1, characterized in that: The upper top plate (15) is provided with supporting force by the elastic element (16); the lower top plate (9) is provided with supporting force by the top cylinder of the punching machine.

7. The processing device for the rear end fixing plate and the clamping ring of the heat exchanger according to claim 1, characterized in that: The upper template (1) is equipped with a guide column (17), and the forming mold core (5) is provided with a guide hole (18), and the guide column (17) is slidably connected to the guide hole (18).

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