Stamping die for heat exchanger sealing strip machining

Abstract

The utility model discloses a stamping die for machining a heat exchanger sealing strip. The stamping die comprises a workpiece to be machined and a fixed die plate. A stamping groove is formed in the upper end of the fixed mold plate, and a connecting frame is arranged at the upper end of the fixed mold plate. The lower end of the connecting frame is fixedly connected with an upper die plate matched with the stamping groove. The lower end of the connecting frame is further movably connected with two abutting templates. The two abutting templates are symmetrically arranged on the two sides of the upper template and connected with the upper template in a sliding mode. A connecting rod is movably inserted into the upper end of the abutting template; the upper end of the connecting rod is fixedly connected with the connecting frame; the lower end of the connecting rod is arranged on the inner side of the abutting template and is connected with a moving block; and moving grooves matched with the moving blocks are formed in the inner sides of the abutting templates. The abutting templates are movably arranged on the two sides of the upper template, the abutting templates on the two sides droop downwards under the gravity, and when the whole connecting frame moves downwards, the abutting templates preferentially press the two sides of a workpiece to be machined, so that the workpiece to be machined is pressed and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger processing technical field especially relates to a stamping die for heat exchanger seal bar processing. BACKGROUND

[0002] In heat exchanger seal bar processing, the long strip workpiece is usually stamped to make the inner side concave, so as to process the desired shape. However, the width of the heat exchanger seal bar is narrow, and the stamping process may cause displacement of the two sides during the middle extrusion, resulting in the inability to use the stamped workpiece or the need for clamping and fixing before stamping, which is complicated and time-consuming. SUMMARY

[0003] The utility model discloses a stamping die for heat exchanger seal bar processing to solve the problems in the prior art.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A stamping die for heat exchanger seal bar processing, comprising a workpiece to be processed and a fixed die plate, wherein the upper end of the fixed die plate is provided with a stamping groove, and the upper end of the fixed die plate is provided with a connecting frame; the lower end of the connecting frame is fixedly connected with an upper die plate matched with the stamping groove; the lower end of the connecting frame is also movably connected with two abutting die plates; the two abutting die plates are symmetrically arranged on both sides of the upper die plate and are slidably connected with the upper die plate; the upper end of the abutting die plate is movably inserted with a connecting rod; the upper end of the connecting rod is fixedly connected with the connecting frame; the lower end of the connecting rod is arranged on the inner side of the abutting die plate and is connected with a moving block; the inner side of the abutting die plate is provided with a moving groove matched with the moving block; the abutting die plate is movably connected with the connecting frame through the connecting rod; and the bottom of the abutting die plate is lower than the bottom of the upper die plate.

[0006] Preferably, a spring is sleeved on the connecting rod; the upper end of the spring abuts against the lower end of the connecting frame; and the lower end of the spring abuts against the abutting die plate.

[0007] Preferably, the upper end of the abutting die plate is fixedly connected with a limiting block; the inner side of the limiting block is provided with a through hole; and the diameter of the through hole is not less than the diameter of the spring.

[0008] Preferably, the height of the limiting block matches the shortest distance of the spring; and the sum of the height of the abutting die plate and the limiting block matches the height of the side surface of the upper die plate.

[0009] Preferably, the upper end of the connecting frame is connected with an ear plate; a plurality of threaded holes are arranged on the ear plate; and the connecting frame is connected with the outside through the ear plate.

[0010] Compared with the prior art, the heat exchanger sealing strip processing stamping die has the following beneficial effects:

[0011] The heat exchanger sealing strip processing stamping die, by movably arranging the abutting die plates on the two sides of the upper die plate, when in use, the abutting die plates on the two sides fall downward under gravity, when the connecting frame as a whole moves downward, the abutting die plates preferentially press the two sides of the workpiece to be processed, so that the workpiece to be processed is fixed and then is pressed downward for stamping operation, thereby increasing the stability of the workpiece and eliminating the need for other mechanisms to clamp the workpiece; in combination with the springs, the abutting die plates are prevented from moving upward in use, and the workpiece is prevented from having the edges on the two sides warped; in order to ensure the overall stamping effect, the upper end of the abutting die plate is fixedly connected with a limiting block, so that when the upper die plate moves to the lowest height, the abutting die plate cannot move up and down, thereby avoiding the influence of the movement of the abutting die plate on the processing of the two sides of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of the utility model;

[0013] Fig. 2 It is a structural schematic view of the utility model in use.

[0014] In the drawing: 10, workpiece to be processed; 11, fixed die plate; 12, stamping groove; 21, connecting frame; 22, upper die plate; 23, abutting die plate; 24, connecting rod; 25, moving block; 26, moving groove; 27, spring; 28, limiting block; 29, through hole; 31, ear plate; 32, threaded hole. DETAILED DESCRIPTION

[0015] The specific embodiments will be described below with reference to the drawings. Figs. 1-2To introduce the specific embodiment of the stamping die for heat exchanger sealing strip processing, including the workpiece 10 and the fixed mold plate 11, the fixed mold plate 11 is provided with a stamping groove 12 on the upper end, and the fixed mold plate 11 is provided with a connecting frame 21 on the upper end, and the connecting frame 21 is fixedly connected with the upper die plate 22 matched with the stamping groove 12, and the connecting frame 21 is further movably connected with two abutting mold plates 23, and the two abutting mold plates 23 are symmetrically arranged on the two sides of the upper die plate 22 and are slidably connected with the upper die plate 22, and the abutting mold plate 23 is movably inserted with a connecting rod 24 on the upper end, and the connecting rod 24 is fixedly connected with the connecting frame 21 on the upper end, and the connecting rod 24 is arranged on the inner side of the abutting mold plate 23 and is connected with a moving block 25, and the inner side of the abutting mold plate 23 is provided with a moving groove 26 matched with the moving block 25, and the abutting mold plate 23 is movably connected with the connecting frame 21 through the connecting rod 24, and the bottom of the abutting mold plate 23 is lower than the bottom of the upper die plate 22, so that the abutting mold plate 23 on both sides falls downward under the gravity, and the abutting mold plate 23 is preferentially pressed on both sides of the workpiece 10 when the connecting frame 21 moves downward as a whole, so that the workpiece 10 is fixedly pressed, and then the workpiece 10 is pressed downward for stamping operation.

[0016] In order to prevent the abutting mold plate 23 from moving upward, a spring 27 is sleeved on the connecting rod 24, the upper end of the spring 27 is abutted with the lower end of the connecting frame 21, and the lower end of the spring 27 is abutted with the abutting mold plate 23.

[0017] In order to ensure the overall stamping effect, the abutting mold plate 23 is fixedly connected with a limiting block 28 on the upper end, the inner side of the limiting block 28 is provided with a through hole 29, the diameter of the through hole 29 is not less than the diameter of the spring 27, the height of the limiting block 28 is matched with the shortest distance of the spring 27, and the sum of the height of the abutting mold plate 23 and the limiting block 28 is matched with the side height of the upper die plate 22, so that the abutting mold plate 23 cannot move up and down when the upper die plate 22 moves to the lowest height.

[0018] The connecting frame 21 is connected with an ear plate 31 on the upper end, a plurality of threaded holes 32 are formed in the ear plate 31, and the connecting frame 21 is connected with the outside through the ear plate 31, so that the ear plate 31 can be connected with a pneumatic cylinder for downward stamping operation.

[0019] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A stamping die for processing heat exchanger seals, comprising a workpiece (10) to be processed and a fixed template (11); wherein the fixed template (11) is provided with a stamping groove (12) at its upper end, characterized in that, The fixed template (11) is provided with a connecting frame (21) at its upper end; the lower end of the connecting frame (21) is fixedly connected to an upper template (22) that matches the stamping groove (12); the lower end of the connecting frame (21) is also movably connected to two abutting templates (23); the two abutting templates (23) are symmetrically arranged on both sides of the upper template (22) and slidably connected to the upper template (22); the upper end of the abutting template (23) is movably inserted with a connecting rod (24); the upper end of the connecting rod (24) is fixedly connected to the connecting frame (21); the lower end of the connecting rod (24) is located inside the abutting template (23) and connected to a moving block (25); the inner side of the abutting template (23) is provided with a moving groove (26) that matches the moving block (25); the abutting template (23) is movably connected to the connecting frame (21) through the connecting rod (24); and the lowest bottom height of the abutting template (23) is lower than the bottom height of the upper template (22).

2. The stamping die for processing heat exchanger seals according to claim 1, characterized in that, A spring (27) is fitted on the connecting rod (24); the upper end of the spring (27) abuts against the lower end of the connecting frame (21); the lower end of the spring (27) abuts against the abutting template (23).

3. The stamping die for processing heat exchanger seals according to claim 2, characterized in that, The upper end of the abutment template (23) is fixedly connected to a limiting block (28); the inner side of the limiting block (28) is provided with a through hole (29); the diameter of the through hole (29) is not less than the diameter of the spring (27).

4. A stamping die for processing heat exchanger seals according to claim 3, characterized in that, The height of the limiting block (28) matches the shortest distance of the spring (27); and the sum of the heights of the abutting template (23) and the limiting block (28) matches the side height of the upper template (22).

5. A stamping die for processing heat exchanger seals according to claim 1, characterized in that, The upper end of the connecting frame (21) is connected to an ear plate (31); the ear plate (31) is provided with several threaded holes (32); the connecting frame (21) is connected to the outside through the ear plate (31).

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