PVD (Physical Vapor Deposition) coating of stamping and bending die

Abstract

The utility model relates to the field of PVD (Physical Vapor Deposition) coatings, in particular to a PVD coating of a stamping and bending die, a lower die is fixedly arranged above a lower die holder, an upper die holder is vertically and movably arranged above the lower die holder, an upper die corresponding to the lower die is adaptively arranged at the bottom of the upper die holder, and the PVD coatings are arranged on the lower die and the upper die; an air inlet pipe is fixedly arranged in the upper die base, communicated air outlet pipes are fixedly and vertically arranged on the two sides of the air inlet pipe downwards through connecting pipes, the air outlet pipes extend out of the bottom of the upper die base, and three air outlets are formed in the sides, facing the upper die, of the air outlet pipes. According to the utility model, the PVD coatings are arranged on the surfaces of the lower mold and the upper mold, the high temperature resistance of the PVD coatings can be improved through the PVD coatings formed by coating and combining multiple layers of structures, and the lower mold and the upper mold can be cooled through the air outlets in the air outlet pipes when working, so that the service life of the PVD coatings is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of PVD coatings, in particular to PVD coatings for stamping and bending dies. Background Art

[0002] PVD coating is a surface treatment technology widely used in modern industrial manufacturing and surface engineering. PVD coating of stamping and bending dies is an advanced surface treatment technology designed to improve the wear resistance, corrosion resistance and service life of the die.

[0003] During the stamping process, the metal material is forced to deform in the die, which generates a large amount of heat. The friction between the metal material and the die also generates heat. This heat increases the temperature of the stamping and bending die. The life of the PVD coating of the stamping and bending die in a high temperature environment will be significantly shortened. This will increase the frequency of die replacement and increase production costs. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a PVD coating for a stamping and bending die.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The PVD coating of the stamping and bending die includes a lower die base and an upper die base, wherein a lower die is fixedly arranged above the lower die base, and an upper die is vertically movably arranged above the lower die base, and an upper die is adapted to be arranged at the bottom of the upper die base corresponding to the lower die, and both the lower die and the upper die are provided with a PVD coating; an air inlet pipe is fixedly arranged in the upper die base, and both sides of the air inlet pipe are vertically fixed downward with connected air outlet pipes through connecting pipes, and the air outlet pipes extend from the bottom of the upper die base, and three air outlets are provided on the side of the air outlet pipe facing the upper die.

[0007] In addition, a preferred structure is that a fixing ring is fixedly sleeved on each of the air outlet pipes, and a counterweight ring is vertically movably provided above the fixing ring.

[0008] In addition, a preferred structure is that a fixing seat is fixedly provided on the lower mold base below the air outlet pipe, and columns are fixedly provided vertically upward on both sides of the fixing seat.

[0009] In addition, a preferred structure is that vertical through cavities are opened on both sides of the fixing ring, and the through cavities are adapted to the columns.

[0010] In addition, a preferred structure is that the counterweight rings are all located above the fixed ring, and the counterweight rings block the air outlet at the bottom of the air outlet pipe.

[0011] In addition, the preferred structure is that the structure of the PVD coating includes a base layer arranged on the surfaces of the lower mold and the upper mold, the surface of the base layer is provided with a titanium metal layer, the surface of the titanium metal layer is provided with a first titanium nitride layer, the surface of the first titanium nitride layer is provided with a titanium silicide layer, and the surface of the titanium silicide layer is provided with a second titanium nitride layer.

[0012] The beneficial effects of the present invention are as follows: the PVD coating is arranged on the surface of the lower mold and the upper mold, and the PVD coating formed by the multi-layer structure coating can improve the high temperature resistance of the PVD coating, and by setting the air outlet on the air outlet pipe, the lower mold and the upper mold can be cooled when they are working, thereby increasing the service life of the PVD coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the PVD coating of the stamping and bending die proposed in the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of the air inlet pipe and the air outlet pipe proposed in the utility model;

[0015] Figure 3 This is a schematic structural diagram of the air outlet pipe and the fixing base proposed in the present utility model;

[0016] Figure 4 for Figure 3 Schematic diagram of the structure when the air outlet pipe moves downward;

[0017] Figure 5 This is a schematic structural diagram of the PVD coating proposed in this utility model.

[0018] In the figure: 1 lower mold base, 11 lower mold, 2 upper mold base, 21 upper mold, 3 air inlet pipe, 31 air outlet pipe, 311 air outlet, 32 fixing ring, 321 through cavity, 33 counterweight ring, 4 fixing base, 41 column, 5 base layer, 6 titanium metal layer, 7 first titanium nitride layer, 8 titanium silicide layer, 9 second titanium nitride layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-5The PVD coating of the stamping and bending die includes a lower die base 1 and an upper die base 2. A lower die 11 is fixedly installed above the lower die base 1. The upper die base 2 is vertically movable above the lower die base 1. An upper die 21 is adapted to fit the bottom of the upper die base 2 and corresponds to the lower die 11. Both the lower die 11 and the upper die 21 are provided with a PVD coating. An air inlet pipe 3 is fixedly installed inside the upper die base 2. Air outlet pipes 31 are vertically fixed downwardly connected on both sides of the air inlet pipe 3 through connecting pipes. The air outlet pipes 31 extend from the bottom of the upper die base 2 and are provided with three air outlets 311 on the side of the air outlet pipe 31 facing the upper die 21.

[0021] The upper die base 2 is positioned above the lower die base 1 via guide posts. A piston rod on an external cylinder is connected to the top of the upper die base 2, which drives the upper die base 2. This controls the movement of the upper die 21 on the upper die base 2 toward the lower die 11 on the lower die base 1, thereby achieving stamping and bending of the workpiece. It is worth noting that the specific stamping and bending structures of the lower die base 1, lower die 11, upper die base 2, and upper die base 21 are all prior art and will not be described in detail.

[0022] Among them, the air outlet pipe 31 is fixed with a fixing ring 32, and a counterweight ring 33 is vertically movable above the fixing ring 32. The setting of the fixing ring 32 can support the counterweight ring 33 to prevent the counterweight ring 33 from falling off the air outlet pipe 31.

[0023] The lower mold base 1 is fixed with a fixing base 4 below the air outlet duct 31, and upright posts 41 are fixed and vertically arranged on both sides of the fixing base 4. Vertical through cavities 321 are opened on both sides of the fixing ring 32, and the through cavities 321 are adapted to the upright posts 41.

[0024] The counterweight rings 33 are all located above the fixing ring 32 , and the counterweight rings 33 block the air outlet 311 at the bottom of the air outlet pipe 31 .

[0025] The structure of the PVD coating includes a base layer 5 provided on the surfaces of the lower mold 11 and the upper mold 21, a titanium metal layer 6 provided on the surface of the base layer 5, a first titanium nitride layer 7 provided on the surface of the titanium metal layer 6, a titanium silicide layer 8 provided on the surface of the first titanium nitride layer 7, and a second titanium nitride layer 9 provided on the surface of the titanium silicide layer 8. The PVD coating formed by this multi-layer coating can improve the high-temperature resistance of the PVD coating, so that it can meet the high-temperature environment of the lower mold 11 and the upper mold 21 when stamping and bending the workpiece.

[0026] In this embodiment, the stamping and bending of the workpiece can be achieved by setting the lower mold 11 and the upper mold 21. By setting the PVD coating on the surface of the lower mold 11 and the upper mold 21, the performance of the lower mold 11 and the upper mold 21 can be further improved.

[0027] Furthermore, an air inlet pipe 3 is fixedly provided on the upper mold base 2, and one end of the air inlet pipe 3 extends from the side of the upper mold base 2. The user can connect an external fan to the air inlet end of the air inlet pipe 3, so that the air flow can pass through the air inlet pipe 3 and the connecting pipe and be blown out from the air outlet 311 of the air outlet pipe 31.

[0028] When the upper mold base 2 does not move downward, since the lowest air outlet 311 of the air outlet pipe 31 is blocked by the counterweight ring 33, only the two air outlets 311 above the air outlet pipe 31 can blow air. At this time, the air blown out by the air outlet 311 is strong and can cool the upper mold 21.

[0029] When the upper mold base 2 is moved downward, the air outlet duct 31 moves downward simultaneously. The uprights 41 on the fixed base 4 then pass through the through-cavities 321 on the fixed ring 32 and lift the counterweight ring 33. This releases the blockage of the lowest air outlet 311 by the counterweight ring 33, allowing air to flow out of all three outlets, thereby simultaneously cooling the lower mold 11 and the upper mold 21.

[0030] Furthermore, when the upper mold base 2 moves upward again, since the column 41 no longer supports the counterweight ring 33, the counterweight ring 33 can drop by its own gravity, thereby blocking the lowest air outlet 311 again through the counterweight ring 33.

[0031] It is worth noting that the two air outlets above the air outlet duct 31 can blow cold air toward the upper mold 21, thereby cooling the upper mold 21. The air outlet 311 at the bottom of the air outlet duct 31 can blow cold air toward the lower mold 11, thereby cooling the lower mold 11.

[0032] In the present invention, the PVD coating is arranged on the surface of the lower mold 11 and the upper mold 21. The PVD coating formed by the multi-layer structure coating can improve the high temperature resistance of the PVD coating. In addition, by setting the air outlet 311 on the air outlet pipe 31, the lower mold 11 and the upper mold 21 can be cooled when they are working, thereby increasing the service life of the PVD coating.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PVD coating for a stamping and bending die, comprising a lower die base (1) and an upper die base (2), characterized in that: A lower mold (11) is fixedly provided above the lower mold base (1), an upper mold base (2) is vertically movably provided above the lower mold base (1), an upper mold (21) is adapted to be provided at the bottom of the upper mold base (2) corresponding to the lower mold (11), and both the lower mold (11) and the upper mold (21) are provided with a PVD coating; An air inlet pipe (3) is fixedly provided inside the upper mold base (2), and air outlet pipes (31) are vertically provided on both sides of the air inlet pipe (3) and fixed downward through connecting pipes. The air outlet pipes (31) extend from the bottom of the upper mold base (2), and three air outlets (311) are provided on the side of the air outlet pipe (31) facing the upper mold (21).

2. The PVD coating of the stamping and bending die according to claim 1, characterized in that: A fixing ring (32) is fixedly sleeved on each of the air outlet pipes (31), and a counterweight ring (33) is vertically movably provided above each of the fixing rings (32).

3. The PVD coating of the stamping and bending die according to claim 2, characterized in that: A fixing seat (4) is fixedly provided on the lower mold base (1) below the air outlet pipe (31), and upright posts (41) are fixedly provided vertically upward on both sides of the fixing seat (4).

4. The PVD coating of the stamping and bending die according to claim 3, characterized in that: Both sides of the fixing ring (32) are provided with vertically penetrating through cavities (321), and the through cavities (321) are adapted to the upright posts (41).

5. The PVD coating of the stamping and bending die according to claim 4, characterized in that: The counterweight rings (33) are all located above the fixed ring (32), and the counterweight rings (33) block the air outlet (311) at the bottom of the air outlet pipe (31).

6. The PVD coating of the stamping and bending die according to claim 1, characterized in that: The structure of the PVD coating comprises a base layer (5) arranged on the surface of a lower mold (11) and an upper mold (21), a titanium metal layer (6) being arranged on the surface of the base layer (5), a first titanium nitride layer (7) being arranged on the surface of the titanium metal layer (6), a titanium silicide layer (8) being arranged on the surface of the first titanium nitride layer (7), and a second titanium nitride layer (9) being arranged on the surface of the titanium silicide layer (8).

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