Spring piece forming die

Abstract

The utility model relates to the field of dies, in particular to a spring piece forming die. The mold comprises a core rod, an upper mold, a lower mold, an upper mold moving mechanism and a lower mold moving mechanism, the core rod is located between the upper mold and the lower mold, a conical protrusion is arranged on the upper mold, a first C-shaped groove used for being matched with the core rod is formed in the top of the conical protrusion, conical grooves used for being matched with the conical protrusion are formed in the lower mold, and a second C-shaped groove used for being matched with the core rod is formed in each conical groove. The upper die moving mechanism is connected with the upper die, and the lower die moving mechanism is connected with the lower die. According to the utility model, a rectangular leaf body is pressed into a C-shaped spring leaf through the upper die with the C-shaped groove I, the lower die with the C-shaped groove II and the core rod in the middle. The stability of the machining quality of the C-shaped spring piece is improved, and the roundness of the C-shaped spring piece is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a spring sheet forming mold. Background Art

[0002] The existing processing method of the C-shaped spring sheet is to fix the base on a lathe, and through the two rollers on the base and the core rod added to the lathe rolling back and forth and the base pushing, the rectangular spring sheet is gradually deformed into a C shape. However, the quality of this processing method is unstable and the roundness is not high enough. Utility Model Content

[0003] In order to overcome the shortcomings of insufficient processing roundness and unstable quality of the existing C-shaped spring pieces, the utility model provides a spring piece forming die.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a spring sheet forming mold, including a core rod, an upper mold, a lower mold, an upper mold moving mechanism, and a lower mold moving mechanism, the core rod is located between the upper mold and the lower mold, the upper mold is provided with a conical protrusion, the top of the conical protrusion is provided with a C-shaped groove 1 for matching the core rod, the lower mold is provided with a conical groove for matching the conical protrusion, and the conical groove is provided with a C-shaped groove 2 for matching the core rod, the upper mold moving mechanism is connected to the upper mold, and the lower mold moving mechanism is connected to the lower mold.

[0005] According to another embodiment of the utility model, the upper die and the lower die are further connected to the straight rail in a sliding manner.

[0006] According to another embodiment of the utility model, the mold moving mechanism is further comprised of a single-rod power cylinder, and the piston rod of the mold moving mechanism is connected to the back of the upper mold.

[0007] According to another embodiment of the utility model, the lower die moving mechanism is further comprised of a single-rod power cylinder, and the piston rod of the lower die moving mechanism is connected to the back of the lower die.

[0008] The beneficial effect of the utility model is that the utility model presses a rectangular sheet into a C-shaped spring sheet through an upper die with a C-shaped groove 1, a lower die with a C-shaped groove 2 and a core rod in the middle. The application improves the stability of the processing quality of the C-shaped spring sheet and improves the roundness of the C-shaped spring sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the utility model in which the spring sheet is pressed into a U shape;

[0012] Figure 3 It is a schematic diagram of the structure of the utility model after mold closing;

[0013] In the figure, 1. core rod, 2. upper die, 3. lower die, 4. upper die moving mechanism, 5. lower die moving mechanism, 6. straight rail, 21. conical protrusion, 22. C-shaped groove 1, 31. conical groove, 32. C-shaped groove 2. DETAILED DESCRIPTION

[0014] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 It is a schematic diagram of the structure of the utility model in which the spring sheet is pressed into a U shape; Figure 3 It is a schematic diagram of the structure of the utility model after mold closing.

[0015] A spring sheet forming mold comprises a core rod 1, an upper mold 2, a lower mold 3, an upper mold moving mechanism 4, and a lower mold moving mechanism 5. The core rod 1 is located between the upper mold 2 and the lower mold 3. The upper mold 2 is provided with a conical protrusion 21, and the top of the conical protrusion 21 is provided with a C-shaped groove 22 for matching the core rod 1. The lower mold 3 is provided with a conical groove 31 for matching the conical protrusion 21, and a C-shaped groove 32 for matching the core rod 1 is provided in the conical groove 31. The upper mold moving mechanism 4 is connected to the upper mold 2, and the lower mold moving mechanism 5 is connected to the lower mold 3.

[0016] The upper die 2 and the lower die 3 are both slidably connected to the straight rail 6 .

[0017] The mold moving mechanism 4 is a single-rod power cylinder, and the piston rod of the mold moving mechanism 4 is connected to the back of the upper mold 2.

[0018] The lower die moving mechanism 5 is a single-rod power cylinder, and the piston rod of the lower die moving mechanism 5 is connected to the back of the lower die 3 .

[0019] The working method of this application is as follows: Figure 1 As shown, in the initial state, the upper die 2 and the lower die 3 are in an open state. Then the rectangular spring sheet with rounded corners at both ends is placed between the core rod 1 and the upper die 2. Then the upper die moving mechanism 4 pushes the upper die 2 to the core rod 1 to press and fix the spring sheet, and the lower die moving mechanism 5 drives the lower die 3 to approach the core rod 1. As shown in the attached figure Figure 2 As shown in FIG. 1 , as the upper die 2 gradually closes with the core rod 1, the two sides of the spring sheet will gradually bend, thereby pressing the spring sheet into a U shape. Figure 3 As shown, finally the lower die 3 and the core rod 1 are closed, thereby pressing the spring sheet into a circular shape that completely fits the core rod 1.

Claims

1. A spring sheet forming die, characterized in that: The invention comprises a core rod (1), an upper die (2), a lower die (3), an upper die moving mechanism (4), and a lower die moving mechanism (5); the core rod (1) is located between the upper die (2) and the lower die (3); a conical protrusion (21) is provided on the upper die (2); a C-shaped groove 1 (22) for matching the core rod (1) is provided at the top of the conical protrusion (21); a conical groove (31) for matching the conical protrusion (21) is provided on the lower die (3); a C-shaped groove 2 (32) for matching the core rod (1) is provided in the conical groove (31); the upper die moving mechanism (4) is connected to the upper die (2); and the lower die moving mechanism (5) is connected to the lower die (3).

2. The spring sheet forming die according to claim 1, characterized in that: The upper die (2) and the lower die (3) are both slidably connected to the straight rail (6).

3. The spring sheet forming die according to claim 1, characterized in that: The mold moving mechanism (4) is a single-rod power cylinder, and the piston rod of the mold moving mechanism (4) is connected to the back of the upper mold (2).

4. The spring sheet forming die according to claim 1, characterized in that: The lower die moving mechanism (5) is a single-rod power cylinder, and the piston rod of the lower die moving mechanism (5) is connected to the back of the lower die (3).

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