Brazing ring folding and pressing die

Abstract

The utility model discloses a brazing ring folding and pressing die, which relates to the technical field of brazing ring punch forming and comprises a top die plate and a bottom die plate, a top pressing ring is fixedly arranged at the bottom of the top die plate, a central column is fixedly arranged at the central position of the top of the top die plate, and a triangular notch is arranged at the bottom of the side surface of the top pressing ring. An outer cylinder is fixedly arranged at the top of the bottom formwork, and a center column is fixedly arranged in the center of an inner cavity of the outer cylinder. The auxiliary discharging assembly is arranged at the bottom of the top die plate, after the brazing ring is folded, pressed and formed, the power source drives the top die plate to be far away from the bottom die plate, the auxiliary discharging assembly is controlled to act, the formed brazing ring in the annular cavity of the bottom die plate is ejected out, workers can conveniently detach the formed brazing ring, and the production efficiency is improved. The problem that the brazing ring is difficult to separate from the lower die due to the fact that the power source controls the upper die to be close to the lower die and the annular brazing ring is folded, pressed and formed in the annular cavity of the lower die is thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of brazing ring stamping and forming, in particular to a brazing ring folding and pressing die. Background Art

[0002] The brazing ring is a metal product used for connecting, fixing or strengthening the part structure. It is folded and pressed into a triangular protrusion by a stamping device. By folding and pressing out the triangular protrusion, the brazing ring can be more firmly fixed on the connected parts after welding, increasing stability and durability. In addition, the shape of the protrusion enables the solder to be more easily filled and diffused during welding, thereby reducing pores and defects in the welding process and improving the welding quality.

[0003] In the prior art, generally, a circular-ring brazing ring is placed in the annular cavity of the lower die, and the power source controls the upper die to approach the lower die, and the circular-ring brazing ring is folded and formed in the annular cavity of the lower die. However, this makes it difficult for the brazing ring to be detached from the lower die, especially for the brazing ring with a relatively thin ring diameter. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem that in the prior art, generally, a circular-ring brazing ring is placed in the annular cavity of the lower die, and the power source controls the upper die to approach the lower die, and the circular-ring brazing ring is folded and formed in the annular cavity of the lower die. However, for the brazing ring with a relatively thin ring diameter, it is difficult for the brazing ring to be detached from the lower die, and a brazing ring folding and pressing die is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A brazing ring folding and pressing die includes a top template and a bottom template. A top pressing ring is fixedly arranged at the bottom of the top template. A connecting column is fixedly arranged at the center position of the top of the top template. A triangular notch is formed at the bottom of the side of the top pressing ring. An external cylinder is fixedly arranged at the top of the bottom template. A central column is fixedly arranged at the center position of the inner cavity of the external cylinder. A forming cylinder is sleeved on the outer wall of the central column. Triangular protrusions are symmetrically and fixedly arranged at the top of the forming cylinder. An auxiliary unloading component for quickly unloading the part after the brazing ring is formed is arranged at the bottom of the top template.

[0007] Optionally, auxiliary cylinders are fixedly arranged at the four corners of the bottom of the top template, and auxiliary columns are vertically and movably inserted into the auxiliary cylinders.

[0008] Optionally, the auxiliary unloading component includes an L-shaped rod, a lifting column and a connecting spring. The top of the L-shaped rod is fixedly arranged at the bottom of the top template. The L-shaped rod includes a vertical section and a horizontal section.

[0009] Optionally, the horizontal section of the L-shaped rod extends into the bottom of the lifting column, one end of the lifting column is fixedly connected to the side of the forming cylinder, and the outer cylinder is provided with a vertical groove at the position of the lifting column.

[0010] Optionally, the inner wall of the auxiliary cylinder and the outer wall of the auxiliary column are polished into smooth surfaces, and the bottom of the auxiliary column is fixedly arranged on the top of the bottom template.

[0011] Optionally, the bottom template is provided with an avoidance groove below the L-shaped rod, and the cross-sectional area of the avoidance groove in the top view is not less than the cross-sectional area of the L-shaped rod in the top view.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model is provided with an auxiliary unloading component at the bottom of the top template. After the brazing ring is folded and formed, the power source drives the top template to move away from the bottom template, which is an essential return action. The auxiliary unloading component is controlled to act, and the brazing ring formed in the annular cavity of the bottom template is ejected, facilitating the worker to unload the formed brazing ring. This completely solves the problem that the power source controls the upper die to approach the lower die, and it is difficult to separate the circular brazing ring from the lower die after folding and forming in the annular cavity of the lower die.

[0014] 2. The auxiliary unloading component of the utility model is not directly fixed on the forming cylinder for brazing ring forming. When the top template approaches the bottom template to fold and form the brazing ring, the auxiliary unloading component will not interfere with the entire folding and forming work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For Figure 1 Another perspective structural schematic diagram.

[0017] Figure 3 For Figure 1 Half-sectional structural schematic diagram.

[0018] In the figure: 1. Top pressure ring; 2. Triangular notch; 3. Top template; 31. Auxiliary cylinder; 4. Bottom template; 41. Auxiliary column; 42. Avoidance groove; 5. L-shaped rod; 6. Triangular protrusion; 7. Forming cylinder; 8. Central column; 9. Outer cylinder; 10. Vertical groove; 11. Lifting column; 12. Connecting spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0020] Reference Figures 1-3 , a brazing ring folding and pressing die, including a top template 3 and a bottom template 4. A pressing ring 1 is fixedly arranged at the bottom of the top template 3. A connecting column is fixedly arranged at the center position of the top of the top template 3. The connecting column is used to connect to the output end of a power source. The connecting column is drawn in the figure but not numbered. A triangular notch 2 is opened at the bottom of the side of the pressing ring 1. An external cylinder 9 is fixedly arranged at the top of the bottom template 4. A central column 8 is fixedly arranged at the center position of the inner cavity of the external cylinder 9. A forming cylinder 7 is sleeved on the outer wall of the central column 8. Triangular protrusions 6 are symmetrically fixedly arranged at the top of the forming cylinder 7. The cross-sectional sizes of the triangular notch 2 and the triangular protrusions 6 are the same. The triangular notch 2 and the triangular protrusions 6 can be used for folding and forming the triangular edges of the brazing ring.

[0021] An auxiliary unloading component is arranged at the bottom of the top template 3 to facilitate the quick unloading of the brazing ring after forming. Auxiliary cylinders 31 are fixedly arranged at the four corners of the bottom of the top template 3. Auxiliary columns 41 are vertically inserted into the auxiliary cylinders 31 in a movable manner. The inner walls of the auxiliary cylinders 31 and the outer walls of the auxiliary columns 41 are polished into smooth surfaces. The bottom of the auxiliary column 41 is fixedly arranged on the top of the bottom template 4. The arrangement of the auxiliary column 41 and the auxiliary cylinder 31 enables the quick docking or separation between the top template 3 and the bottom template 4.

[0022] The auxiliary unloading component includes an L-shaped rod 5, a lifting column 11, and a connecting spring 12. The top of the L-shaped rod 5 is fixedly arranged at the bottom of the top template 3. The L-shaped rod 5 includes a vertical section and a horizontal section. The horizontal section of the L-shaped rod 5 extends into the bottom of the lifting column 11. One end of the lifting column 11 is fixedly connected to the side of the forming cylinder 7. When the connecting spring 12 is in its original length state, the lifting column 11 is at the bottom of the vertical groove 10.

[0023] A vertical groove 10 is opened in the external cylinder 9 at the position of the lifting column 11. An avoidance groove 42 is opened in the bottom template 4 below the L-shaped rod 5. The cross-sectional area of the avoidance groove 42 in the top view is not less than the cross-sectional area of the L-shaped rod 5 in the top view. The avoidance groove 42 leaves enough space for the downward movement of the L-shaped rod 5.

[0024] The specific implementation steps and principles of the present utility model are as follows:

[0025] When the entire die is working, the connecting spring 12 is in its original length state, the lifting column 11 is at the bottom of the vertical groove 10, the bottom of the forming cylinder 7 is attached to the top of the bottom template 4. The worker places the brazing ring to be formed into the gap between the central column 8 and the external cylinder 9. The top template 3 drives the pressing ring 1 into the gap between the central column 8 and the external cylinder 9 through the power source to perform folding and forming on the brazing ring. The power source drives the top template 3 away from the bottom template 4, and the horizontal section of the L-shaped rod 5 lifts the lifting column 11. The lifting column 11 drives the forming cylinder 7 to move upward to eject the brazing ring at the top of the forming cylinder 7.

[0026] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A brazing ring folding and pressing die, comprising a top template (3) and a bottom template (4), characterized in that, A top pressing ring (1) is fixedly arranged at the bottom of the top template (3). A connecting column is fixedly arranged at the center position of the top of the top template (3). A triangular notch (2) is formed at the bottom of the side surface of the top pressing ring (1). An external cylinder (9) is fixedly arranged at the top of the bottom template (4). A central column (8) is fixedly arranged at the center position of the inner cavity of the external cylinder (9). A forming cylinder (7) is sleeved on the outer wall of the central column (8). Triangular protrusions (6) are symmetrically and fixedly arranged at the top of the forming cylinder (7). An auxiliary unloading assembly for quickly unloading the part after the brazing ring is formed is arranged at the bottom of the top template (3).

2. The brazing ring folding and pressing die according to claim 1, characterized in that, Auxiliary cylinders (31) are fixedly arranged at the four corners of the bottom of the top template (3). Auxiliary columns (41) are vertically and movably inserted into the auxiliary cylinders (31).

3. The brazing ring folding and pressing die according to claim 1, wherein, The auxiliary unloading assembly includes an L-shaped rod (5), a lifting column (11), and a connecting spring (12). The top of the L-shaped rod (5) is fixedly arranged at the bottom of the top template (3). The L-shaped rod (5) includes a vertical section and a horizontal section.

4. A brazing ring folding and pressing die according to claim 3, wherein The horizontal section of the L-shaped rod (5) extends into the bottom of the lifting column (11). One end of the lifting column (11) is fixedly connected to the side surface of the forming cylinder (7). A vertical groove (10) is formed in the external cylinder (9) at the position of the lifting column (11).

5. A brazing ring folding and pressing die according to claim 2, characterized in that, The inner wall of the auxiliary cylinder (31) and the outer wall of the auxiliary column (41) are both polished into smooth surfaces. The bottom of the auxiliary column (41) is fixedly arranged at the top of the bottom template (4).

6. A brazing ring folding and pressing die according to claim 1, characterized in that, An avoidance groove (42) is formed in the bottom template (4) below the L-shaped rod (5). The cross-sectional area of the avoidance groove (42) in a top view is not less than the cross-sectional area of the L-shaped rod (5) in a top view.

Images