High-temperature-resistant and wear-resistant hard alloy stamping die

Abstract

The high-temperature-resistant and abrasion-resistant hard alloy stamping die comprises a stamping machine table, a lower die base is arranged above the stamping machine table, guide limiting rods are fixedly arranged at the four corners of the upper end face of the lower die base respectively, and the outer walls of the guide limiting rods are connected with an upper die base in a sliding mode. A hydraulic cylinder is fixedly connected to the upper end face of the upper die base, one end of the hydraulic cylinder is fixedly connected to the upper end of the punching machine table, a dismounting assembly is arranged at the bottom of the upper die base, a female die bushing is fixedly arranged in the lower die base, a cooling assembly is arranged in the female die bushing, and the cooling assembly comprises a cooling water tank. The cooling water tank is fixedly arranged on the outer side of the punching machine table, a water inlet pipe and a water outlet pipe are arranged at the upper end of the cooling water tank, a circulating pump is fixedly connected to one end of the water inlet pipe, a water inlet is formed in the middle of the upper end of the cooling water tank, and circulating cooling can be achieved during punching of the lower die base to prevent deformation caused by too high temperature.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a high-temperature resistant and wear-resistant cemented carbide stamping die. Background Technology

[0002] In modern industrial production, stamping technology is widely used in many fields such as automobile manufacturing, electronic equipment, and aerospace. As the performance requirements of industrial products continue to increase, more stringent challenges are being placed on the working performance of stamping dies. Especially in some stamping processes involving high-temperature metal forming, the dies must not only withstand enormous pressure, but also cope with the problems of thermal deformation, thermal fatigue, and severe wear caused by the high-temperature environment.

[0003] Existing cemented carbide stamping dies have some shortcomings during processing. When stamping workpieces for a long time, the surface temperature of the lower die holder becomes too high, which easily leads to thermal deformation and thermal fatigue, causing damage to the lower die holder and reducing its service life. To address these issues, a high-temperature and wear-resistant cemented carbide stamping die is proposed for improvement and upgrading. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature and wear-resistant cemented carbide stamping die to solve the problems mentioned in the background art.

[0005] To solve the above problems, the following technical solution is provided: a high-temperature and wear-resistant cemented carbide stamping die, including a stamping machine base, a lower die base is provided above the stamping machine base, guide limit rods are fixedly provided at the four corners of the upper end face of the lower die base, an upper die base is slidably connected to the outer wall of the guide limit rods, a hydraulic cylinder is fixedly connected to the upper end face of the upper die base, one end of the hydraulic cylinder is fixedly connected to the upper end of the stamping machine base, a disassembly assembly is provided at the bottom of the upper die base, a die insert is fixedly provided inside the lower die base, a cooling assembly is provided inside the die insert, the cooling assembly includes a cooling water tank, the cooling water tank is fixedly provided on the outside of the stamping machine base, an inlet pipe and an outlet pipe are respectively provided at the upper end of the cooling water tank, and a circulation pump is fixedly connected to one end of the inlet pipe.

[0006] As a preferred embodiment of the above technical solution, the cooling water tank has an inlet at the middle of its upper end, the circulating pump is fixedly installed on the upper end of the press platform, the other end of the circulating pump is connected to a cooling pipe, and the other end of the cooling pipe is connected to the outlet pipe.

[0007] As a preferred embodiment of the above technical solution, the cavity insert has an installation groove inside, the cooling pipe is installed inside the installation groove, and the outer walls of the water inlet pipe and the water outlet pipe are both fixedly equipped with solenoid valves.

[0008] As a preferred embodiment of the above technical solution, a temperature control panel is fixedly installed on the outer wall of the cooling water tank, and the inlet pipe and outlet pipe are positioned at a certain angle.

[0009] As a preferred embodiment of the above technical solution, an installation plate is fixedly provided at the bottom of the upper mold base, and two guide grooves are opened inside the installation plate. The disassembly assembly includes a punch insert, and two guide sliders are fixedly and symmetrically connected to the upper end face of the punch insert. The guide sliders are adapted to the size of the guide grooves.

[0010] As a preferred embodiment of the above technical solution, a rotating rod is provided on the outer side of each of the two guide sliders, and a threaded rod is fixedly connected to the rotating rod. Two positioning holes are symmetrically opened inside each guide slider, and the outer wall of the threaded rod is threaded to the inside of the mounting plate and the extended end is connected to the positioning hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The device of this utility model is equipped with components such as a cooling water tank, a circulating pump, an inlet pipe, a cooling pipe, and an outlet pipe, which is beneficial for effectively cooling the die insert on the lower die base during long-term stamping. This facilitates the demolding of the stamped parts and protects the die insert, avoiding problems such as deformation and damage to the die insert caused by excessive stamping temperature, and improving the service life of the mold.

[0013] 2. The device of this utility model is equipped with components such as an installation plate, guide slider, punch insert, rotating rod, and threaded rod, which facilitates the quick disassembly of the punch insert for maintenance or replacement, and avoids problems such as disassembly difficulties caused by bolt fixing.

[0014] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-temperature and wear-resistant cemented carbide stamping die according to the present invention.

[0017] Figure 2 This is a schematic diagram of a partial side movement structure of a high-temperature and wear-resistant cemented carbide stamping die according to the present invention;

[0018] Figure 3 for Figure 1 A partial enlarged diagram of the split structure;

[0019] Figure 4 for Figure 1 A magnified diagram of the local area.

[0020] In the diagram: 1. Pressing machine base; 2. Upper die holder; 21. Mounting plate; 22. Guide groove; 3. Lower die holder; 31. Die insert; 4. Cooling assembly; 41. Cooling water tank; 42. Inlet pipe; 43. Circulating pump; 44. Cooling pipe; 45. Outlet pipe; 46. Solenoid valve; 47. Mounting groove; 48. Temperature control panel; 5. Guide limit rod; 6. Disassembly assembly; 61. Punch insert; 62. Guide slider; 63. Rotating rod; 64. Threaded rod; 65. Positioning hole; 7. Hydraulic cylinder. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 4 As shown in the figure, this embodiment provides a high-temperature and wear-resistant cemented carbide stamping die, including a stamping machine base 1. A lower die base 3 is provided on the upper part of the stamping machine base 1. Guide limit rods 5 are fixedly provided at the four corners of the upper end face of the lower die base 3. An upper die base 2 is slidably connected to the outer wall of the guide limit rods 5. A hydraulic cylinder 7 is fixedly connected to the upper end face of the upper die base 2. One end of the hydraulic cylinder 7 is fixedly connected to the upper end of the stamping machine base 1. A disassembly component 6 is provided at the bottom of the upper die base 2. A die insert 31 is fixedly provided inside the lower die base 3. A cooling component 4 is provided inside the die insert 31. The cooling component 4 includes a cooling water tank 41. The cooling water tank 41 is fixedly provided on the outside of the stamping machine base 1. An inlet pipe 42 and an outlet pipe 45 are respectively provided on the upper end of the cooling water tank 41. A circulation pump 43 is fixedly connected to one end of the inlet pipe 42.

[0023] like Figure 3 As shown, a water inlet is provided at the middle of the upper end of the cooling water tank 41. The circulating pump 43 is fixedly installed on the upper end of the stamping machine platform 1. The other end of the circulating pump 43 is connected to a cooling pipe 44. The other end of the cooling pipe 44 is connected to the water outlet pipe 45. An installation groove 47 is provided inside the die insert 31. The cooling pipe 44 is located inside the installation groove 47. Solenoid valves 46 are fixedly installed on the outer walls of the water inlet pipe 42 and the water outlet pipe 45. A temperature control panel 48 is fixedly installed on the outer wall of the cooling water tank 41. The positions of the water inlet pipe 42 and the water outlet pipe 45 are at a certain angle.

[0024] The inlet pipe 42 is positioned higher than the outlet pipe 45 to facilitate the coolant entering the cooling pipe 44 and flowing back to the outlet pipe 45. Meanwhile, the lower mold base 3 is made of hard alloy material, and the die insert 31 is made of hard alloy material with good thermal shock resistance and high hardness. The die insert 31 is installed on the lower mold base 3 by interference fit, and a layer of heat insulation material is set between the die insert 31 and the lower mold base 3 to reduce the transfer of heat from the die insert 31 to the lower mold base 3.

[0025] like Figure 4 As shown, an installation plate 21 is fixedly installed at the bottom of the upper mold base 2. Two guide grooves 22 are opened inside the installation plate 21. The disassembly assembly 6 includes a punch insert 61. Two guide sliders 62 are fixedly and symmetrically connected to the upper end face of the punch insert 61. The guide sliders 62 are adapted to the size of the guide grooves 22. A rotating rod 63 is provided on the outer side of each of the two guide sliders 62. A threaded rod 64 is fixedly connected to the rotating rod 63. Two positioning holes 65 are symmetrically opened inside each of the guide sliders 62. The outer wall of the threaded rod 64 is threaded to the inside of the installation plate 21 and the extended end is connected to the positioning hole 65.

[0026] By using high-temperature resistant and high-strength hard tungsten-cobalt alloy for the upper die holder 2, and selecting ultra-fine grain hard alloy with higher wear resistance for the punch insert 61 according to the specific shape and wear condition of the stamped part, the punch insert 61 is installed on the punch body by hot pressing or mechanical fastening. This ensures the overall high-temperature resistance of the punch and improves the wear resistance of key parts. In addition, a special lubrication groove is opened inside the lower die holder 3 on the side away from the mounting groove 47. The lubrication groove is distributed in a mesh. During the stamping process, high-temperature lubricant is injected into the lubrication groove through the oil injection hole of the lower die holder 3 to form a lubricating film between the die and the blank, reducing friction and wear.

[0027] The working principle and process of this utility model are as follows: During the stamping process, the operator places the high-temperature blank on the die sleeve 31 of the lower die holder 3. The upper die holder 2 moves downward under the drive of the hydraulic cylinder 7, causing the punch insert 61 to gradually approach the blank. The upper die holder 2 uses the precise guidance of the guide limit rod 5 to ensure the accuracy of the stamping process. As the punch contacts the blank and applies pressure, the blank undergoes plastic deformation between the punch and the die, gradually forming the required stamped part. During this process, the temperature of the die sleeve 31 on the lower die holder 3 rises during the stamping process. At this time, the circulating pump 43 is driven to work, causing the circulating pump 43 to drive the coolant in the cooling water tank 41 to be transported along the water inlet pipe 42 to the cooling pipe 44 inside the die sleeve 31, which facilitates the cooling of the blank. Cooling is performed inside the die insert 31 to facilitate demolding and prevent deformation caused by excessive temperature. After use, the coolant flows out through the outlet pipe 45. At this time, the solenoid valve 46 is opened to deliver the used coolant to the cooling water tank 41. The temperature of the cooling medium is monitored in real time through the temperature control panel 48 to facilitate the circulation of the coolant and ensure that the mold can be effectively cooled during high-temperature stamping. Over time, the surface of the punch insert 61 on the upper die holder 2 will wear. At this time, the operator rotates the four rotating rods 63 to drive the threaded rod 64 to rotate and pull it out from the guide slider 62. Then, the punch insert 61 is slid out of the guide groove 22 in the mounting plate 21 using the guide slider 62, which facilitates quick disassembly of the punch insert 61 for maintenance or replacement.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. A high-temperature-resistant wear-resistant cemented carbide punch mold characterized by, Including punch machine table (1), punch machine table (1) is provided with lower die holder (3) above, the lower die holder (3) is fixedly provided with guide limiting rod (5) at four corners of upper end surface, the guide limiting rod (5) is slidably connected with upper die holder (2), the upper die holder (2) is fixedly connected with hydraulic cylinder (7) on the upper end surface, one end of the hydraulic cylinder (7) is fixedly connected on the upper end of punch machine table (1), the upper die holder (2) is provided with dismounting assembly (6) on the bottom, the lower die holder (3) is fixedly provided with recess die bushing (31) inside, the recess die bushing (31) is provided with cooling assembly (4) inside, the cooling assembly (4) includes cooling water tank (41), the cooling water tank (41) is fixedly provided on the outside of punch machine table (1), the cooling water tank (41) is provided with water inlet pipe (42) and water outlet pipe (45) on the upper end respectively, one end of the water inlet pipe (42) is fixedly connected with circulating pump (43).

2. The high-temperature and wear-resistant hard metal punch of claim 1, wherein, The upper end of the cooling water tank (41) is provided with a water inlet in the middle, the circulating pump (43) is fixedly installed on the upper end of the punch machine table (1), the other end of the circulating pump (43) is connected with the cooling pipeline (44), and the other end of the cooling pipeline (44) is connected with the water outlet pipe (45).

3. The high-temperature and wear-resistant hard metal punch of claim 2, wherein, The recess die bushing (31) is provided with an installation groove (47) inside, the cooling pipeline (44) is arranged inside the installation groove (47), and the water inlet pipe (42) and the water outlet pipe (45) are fixedly provided with electromagnetic valves (46) on the outer walls.

4. The high-temperature and wear-resistant hard metal punch of claim 3, wherein, The outer wall of the cooling water tank (41) is fixedly provided with a temperature control panel (48), and the water inlet pipe (42) and the water outlet pipe (45) have a certain angle.

5. The high-temperature and wear-resistant hard metal punch of claim 1, wherein, The upper die holder (2) is fixedly provided with a mounting plate (21) on the bottom, two guide grooves (22) are formed in the mounting plate (21), the dismounting assembly (6) comprises a punch bushing (61), two guide sliding blocks (62) are fixedly and symmetrically connected to the upper end surface of the punch bushing (61), and the guide sliding blocks (62) are matched with the guide grooves (22) in size.

6. The high-temperature and wear-resistant hard metal punch of claim 5, wherein, Both sides of the two guide sliding blocks (62) are provided with rotating rods (63), the rotating rods (63) are fixedly connected with threaded rods (64), and the guide sliding blocks (62) are symmetrically provided with two positioning holes (65) inside. The threaded rods (64) are threadedly connected inside the mounting plate (21) and are connected to the positioning holes (65) at the extended ends.

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