High-precision bending and stamping die

Abstract

The utility model relates to the technical field of stamping dies, in particular to a high-precision bending stamping die, and aims to solve the technical problems that a large amount of friction heat is generated between a die and a plate, and the dimensional accuracy of the die is affected. A cooling hole is formed in the die base, the liquid inlet and outlet hole is communicated with the cooling hole, another die set is arranged on the upper portion of the die, the die set, the die sliding rail, the die base, the bolt, the liquid inlet and outlet hole and the cooling hole are arranged in a mirror image mode, the die of the die set and the lower die are matched for stamping, and the die set ascends and descends through a hydraulic cylinder. The two sides of the liquid inlet and outlet hole are communicated with the water inlet pipe and the water outlet pipe, cooling water is introduced into the die base, heat generated by die stamping is transferred to the die base and then taken away by the cooling water, the die is cooled, continuous stamping is achieved, the die does not deform, and the stamping precision is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and specifically relates to a high-precision bending stamping die. Background Art

[0002] During the bending and stamping process, a large amount of frictional heat is generated between the mold and the sheet. Especially in continuous, high-speed stamping operations, heat will accumulate rapidly. For example, when stamping materials with higher hardness such as stainless steel sheets, the friction force on the mold cutting edge and the bending area is relatively large, and the heat generated may cause the local temperature of the mold to rise. If the mold temperature is too high, due to the principle of thermal expansion and contraction, the dimensional accuracy of the mold will be affected, resulting in deviations in the bending angle, size, etc. Moreover, uneven temperature distribution may cause thermal stress in the mold, causing deformation of the mold and shortening the service life of the mold. The utility model solves the above problems. Utility Model Content

[0003] In order to solve the technical problem that a large amount of frictional heat is generated between the mold and the plate, which affects the dimensional accuracy of the mold, the utility model provides a high-precision bending and stamping mold.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision bending stamping die, comprising: a stamping bracket, a die slide rail connected to the stamping bracket, a die base slidably connected to the die slide rail, the die base is fixed to the die slide rail by bolts, a die is connected to the die base, liquid inlet and outlet holes are respectively provided on both sides of the die slide rail, cooling holes are provided in the die base, the liquid inlet and outlet holes are connected to the cooling holes, another die group is provided on the upper part of the die, the die group and the die slide rail, the die base, the bolts, the liquid inlet and outlet holes, and the cooling holes are mirror-set, the die of the die group cooperates with the lower die for stamping, the die group is lifted and lowered by a hydraulic cylinder, and the two sides of the liquid inlet and outlet holes are connected with a water inlet pipe and a drain pipe.

[0005] Preferably, both the water inlet pipe and the drain pipe use hoses, the hoses on both sides are connected to the upper part of the water inlet tank and the drain tank respectively, and the water inlet pipe is connected to the lower part of the water inlet tank.

[0006] Preferably, the cooling hole has a curved hole shape.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] Cooling water flows into the mold base, and the heat generated by the mold stamping is transferred to the mold base and then taken away by the cooling water, which cools the mold. The continuous stamping mold does not deform, which greatly improves the stamping accuracy.

[0009] The cooling holes are curved, which extends the cooling water travel and improves the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0011] Figure 2 It is a schematic structural cross-sectional view of the present utility model.

[0012] In the figure: stamping bracket 1; mold slide rail 2; mold base 3; bolt 4; mold 5; liquid inlet and outlet holes 6; cooling hole 7; mold group 8; hydraulic cylinder 9; hose 10; water inlet box 11; drainage box 12; water inlet pipe 13. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is achieved by performing activities on connecting parts such as hinges, pins and short shafts.

[0015] The present invention will be described in detail below with reference to the accompanying drawings. Example

[0016] The following is combined with Figure 1-2 The embodiment of the present invention describes a high-precision bending stamping die, comprising: a stamping bracket 1, a die slide rail 2 is connected to the stamping bracket, a die base 3 is slidably connected to the die slide rail 2, the die base 3 is fixed to the die slide rail 2 by bolts 4, a die 5 is connected to the die base 3, and liquid inlet and outlet holes 6 are respectively opened on both sides of the die slide rail 2, a cooling hole 7 is opened in the die base 3, the liquid inlet and outlet holes 6 are connected to the cooling hole 7, another die group 8 is provided on the upper part of the die 5, the die group 8 is mirrored with the die slide rail 2, the die base 3, the bolts 4, the liquid inlet and outlet holes 6, and the cooling hole 7, the die 5 of the die group 8 cooperates with the lower die 5 for stamping, the die group 8 is lifted and lowered by a hydraulic cylinder 9, and the two sides of the liquid inlet and outlet holes 6 are connected with a water inlet pipe and a drain pipe;

[0017] During use, coolant is injected into the liquid inlet holes of the liquid inlet and outlet holes 6 in the upper and lower mold slide rails 2, the coolant enters the cooling hole 7, and is discharged through the liquid outlet hole in the liquid inlet and outlet hole 6 on the other side. When the upper and lower molds 5 cooperate in stamping, heat is generated, and the heat is conducted to the mold base 3. The heat of the mold base 3 is taken away by the coolant, so that the mold 5 is cooled down, the continuous stamping mold 5 is not deformed, and the stamping accuracy is greatly improved.

[0018] Both the water inlet pipe and the drain pipe use a hose 10. The hoses 10 on both sides are connected to the upper part of the water inlet box 11 and the drain box 12 respectively. The water inlet pipe 13 is connected to the lower part of the water inlet box 11.

[0019] The hose 10 can be flexibly deformed during stamping and keep the coolant running. Since the hoses 10 on both sides are respectively connected to the water inlet tank 11 and the upper part of the drainage tank 12, and the water inlet pipe 13 is connected to the lower part of the water inlet tank 11, the water inlet tank 11 is first filled with coolant when water is taken in, and then the coolant enters different hoses 10, so that the water pressure and flow rate in each hose are consistent, and uneven cooling will not occur.

[0020] Preferably, the cooling hole 7 has a curved hole shape;

[0021] The cooling hole 7 has a curved hole shape, which prolongs the travel of the cooling water and improves the cooling effect.

[0022] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0023] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision bending stamping die, comprising: A stamping bracket (1) is connected to a mold slide rail (2), a mold base (3) is slidably connected in the mold slide rail (2), the mold base (3) is fixed to the mold slide rail (2) by bolts (4), and a mold (5) is connected to the mold base (3). The invention is characterized in that: liquid inlet and outlet holes (6) are respectively opened on both sides of the mold slide rail (2), a cooling hole (7) is opened in the mold base (3), the liquid inlet and outlet holes (6) are connected with the cooling hole (7), another mold group (8) is provided on the upper part of the mold (5), the mold group (8) and the mold slide rail (2), the mold base (3), the bolt (4), the liquid inlet and outlet holes (6), and the cooling hole (7) are mirror-set, the mold (5) of the mold group (8) cooperates with the lower mold (5) for stamping, the mold group (8) is lifted and lowered by a hydraulic cylinder (9), and a water inlet pipe and a drain pipe are connected on both sides of the liquid inlet and outlet holes (6).

2. A high-precision bending stamping die according to claim 1, characterized in that: The water inlet pipe and the drainage pipe both use hoses (10), and the hoses (10) on both sides are respectively connected to the upper part of the water inlet box (11) and the drainage box (12), and the water inlet pipe (13) is connected to the lower part of the water inlet box (11).

3. The high-precision bending stamping die according to claim 1, characterized in that: The cooling hole (7) has a curved hole shape.

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