Precise forming die for metal sheet

Abstract

The utility model discloses a metal sheet precision forming die, which relates to the technical field of metal sheet forming and comprises a base, a lower die for forming a metal sheet is arranged at the top end of the base, an upper die for closing the lower die is arranged at the top end of the base, and a lifting mechanism is arranged on the base. The lifting mechanism is used for quickly separating the metal plate from the lower mold; the lifting mechanism comprises a transmission unit and a guide unit. By arranging the lifting mechanism, after a metal plate is subjected to punch forming and the upper die is driven by the air cylinder to return to the original position, the upper die moving upwards provides thrust for mutual approaching of the abutting rods, so that the metal plate located in the lower die is separated from the lower die, and the machined metal plate is conveniently and rapidly taken out; and before the upper die and the lower die are closed, the abutting rod is also automatically reset, the working efficiency is further improved, and the machined metal plate can be conveniently and rapidly taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of metal sheet forming, in particular to a metal sheet precision forming die. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods.

[0003] During the precision metal forming process, the formed metal parts often adhere to the die groove, making them difficult to remove and delaying the processing time. In order to facilitate the rapid removal of the processed metal plates and further improve work efficiency, the utility model proposes a metal sheet precision forming die. Utility Model Content

[0004] The purpose of the present invention is to provide a metal sheet precision forming die in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a metal sheet precision forming die, comprising a base, a lower die for forming the metal sheet disposed at the top of the base, an upper die for closing with the lower die disposed at the top of the base, and a lifting mechanism disposed on the base, the lifting mechanism being used to quickly separate the metal sheet from the lower die;

[0006] The lifting mechanism includes a transmission unit and a guide unit;

[0007] The guide unit is used to provide guidance for the lifting of the formed metal plate;

[0008] The transmission unit is used to provide a downward extrusion force for the guide unit.

[0009] As a further solution of the present invention: the transmission unit includes a stop rod, a movable rod, a positioning rod, and a spring;

[0010] The push rod is axially slidably mounted in the inner cavity of the base and extends to the inner side of the lower mold, and the push rod is used to provide a guide for the separation of the metal plate and the lower mold;

[0011] The positioning rod is fixed to the protruding portion of the outer wall of the base, and the positioning rod is used to provide a guide for the vertical movement of the movable rod;

[0012] The movable rod is fixedly connected to the bottom end of the positioning rod and passes through the support rod to extend above the upper mold;

[0013] The two ends of the spring are respectively clamped on the outer wall of the movable rod and the outer wall of the protruding portion of the base, and the spring is used to always provide a downward thrust for the movable rod.

[0014] As a further solution of the present invention: the guide unit includes a push block and a guide groove;

[0015] The push block is fixed to the outer wall of the movable rod and extends to the inner cavity of the guide groove, and the push block is used to provide thrust for the axial movement of the push rod;

[0016] The guide groove is provided in the inner cavity of the push rod, and the guide groove is used for receiving the thrust from the push block.

[0017] As a further solution of the present invention: the outer wall of the push block matches the inner side of the guide groove, and the outer wall of the guide groove is in an inclined state.

[0018] As a further solution of the present invention: a movable groove for relative movement of the movable rod is formed inside the said push rod, and the inner movable groove of the said push rod matches the outer wall of the movable rod.

[0019] As a further solution of the present invention: the outer wall of the end of the push rod close to the lower mold is in an inclined state, and the end of the push rod in the inclined state is used to provide guidance for lifting the metal plate.

[0020] As a further solution of the present invention: the outer wall of the movable rod is in a "C"-shaped structure as a whole, and the upper end cross bar of the "C"-shaped movable rod is located on the vertical movement track of the upper mold.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] By setting up a lifting mechanism, after the metal plate is stamped and formed, the upper mold returns to its original position under the drive of the cylinder, and the upward moving upper mold provides thrust for the push rods to approach each other, so that the metal plate in the lower mold is separated from the lower mold, which is convenient for quickly removing the processed metal plate. Before the upper and lower molds are closed, the push rods will also automatically reset, further improving work efficiency and facilitating the quick removal of the processed metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the installation structure of the movable rod of the utility model;

[0025] Figure 3 This is a schematic diagram of the explosion structure of the support rod and the movable rod of the utility model.

[0026] In the figure: 1, base; 2, lower mold; 3, upper mold; 4, lifting mechanism; 401, push rod; 402, movable rod; 403, positioning rod; 404, spring; 405, push block; 406, guide groove. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 3 In an embodiment of the present invention, a metal sheet precision forming mold includes a base 1, a lower mold 2 for forming the metal sheet is provided at the top of the base 1, an upper mold 3 for closing with the lower mold 2 is provided at the top of the base 1, and a lifting mechanism 4 is provided on the base 1, and the lifting mechanism 4 is used to quickly separate the metal sheet from the lower mold 2;

[0029] The lifting mechanism 4 includes a transmission unit and a guide unit;

[0030] The guide unit is used to provide a guide for the lifting of the formed metal plate;

[0031] The transmission unit is used to provide downward extrusion force for the guide unit;

[0032] The transmission unit includes a stop rod 401, a movable rod 402, a positioning rod 403, and a spring 404;

[0033] The push rod 401 is axially slidably mounted in the inner cavity of the base 1 and extends to the inner side of the lower mold 2. The push rod 401 is used to provide a guide for the separation of the metal plate and the lower mold 2.

[0034] The positioning rod 403 is fixed to the protruding portion of the outer wall of the base 1 and is used to provide a guide for the vertical movement of the movable rod 402;

[0035] The movable rod 402 is fixedly connected to the bottom end of the positioning rod 403 and passes through the support rod 401 to extend above the upper mold 3;

[0036] The two ends of the spring 404 are respectively clamped on the outer wall of the movable rod 402 and the outer wall of the protruding portion of the base 1. The spring 404 is used to always provide a downward thrust for the movable rod 402.

[0037] The guide unit includes a push block 405 and a guide groove 406;

[0038] The push block 405 is fixed to the outer wall of the movable rod 402 and extends to the inner cavity of the guide groove 406. The push block 405 is used to provide thrust for the axial movement of the rod 401;

[0039] The guide groove 406 is defined in the inner cavity of the push rod 401 , and the guide groove 406 is used to receive the thrust from the push block 405 .

[0040] In this embodiment: when using this device, by starting the cylinder connected to the upper mold 3, the upper mold 3 is pushed to close the mold with the lower mold 2, and the metal plate is stamped and formed. After the metal part is formed, the cylinder is started again to drive the upper mold 3 back to its original position. During the upward movement, the upper mold 3 will contact the transverse rod of the push rod 401, giving the push rod 401 an upward lifting force, and the push block 405 fixed on the outer wall of the push rod 401 will also be moved by the force. The upward lifting force of the push block 405 that is moved by the force is transmitted to the guide groove 406. Since the outer wall of the guide groove 406 The whole is in an inclined state, and the vertical movement direction of the push rod 401 remains unchanged. The guide groove 406 in the inclined state converts the upward lifting force into a lateral movement force, so that the two symmetrically arranged push rods 401 are close to each other. The inclined end faces of the push rods 401 contact the outer wall of the end of the formed metal plate, giving the metal plate an upward guiding thrust, so that the metal plate is gradually separated from the lower mold 2. After the upper mold 3 is separated from the lower mold 2, the separated upper mold 3 transmits the upward movement force to the push rod 401, completing the automatic demoulding operation of the metal plate, and further improving work efficiency.

[0041] Please refer to Figure 1-Figure 3 The outer wall of the push block 405 matches the inner side of the guide groove 406, and the outer wall of the guide groove 406 is inclined. The inside of the push rod 401 is formed with a movable groove for the movable rod 402 to move relative to each other. The inner movable groove of the push rod 401 matches the outer wall of the movable rod 402. The outer wall of the end of the push rod 401 close to the lower mold 2 is inclined. The inclined end of the push rod 401 is used to provide guidance for the lifting of the metal plate. The outer wall of the movable rod 402 is a "C"-shaped structure as a whole. The upper cross bar of the "C"-shaped movable rod 402 is located on the vertical movement trajectory of the upper mold 3.

[0042] In this embodiment: through this structure, during the upward movement and reset of the upper mold 3, the horizontal rod of the support rod 401, which coincides with the vertical movement trajectory of the upper mold 3, will be subjected to an upward thrust from the upper mold 3. When the upper mold 3 and the lower mold 2 are closed, the movable rod 402 will also move downward under the elastic force of the spring 404, and the movable rod 402 will also give a thrust to the support rod 401 again, so that the support rods 401 move away from each other and return to their original positions, and repeat this process.

[0043] 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 metal sheet precision forming die, comprising a base (1), a lower die (2) for forming the metal sheet is provided at the top of the base (1), and an upper die (3) for closing the lower die (2) is provided at the top of the base (1), characterized in that: A lifting mechanism (4) is provided on the base (1), and the lifting mechanism (4) is used to quickly separate the metal plate from the lower mold (2); The lifting mechanism (4) comprises a transmission unit and a guide unit; The guide unit is used to provide guidance for the lifting of the formed metal plate; The transmission unit is used to provide a downward extrusion force for the guide unit.

2. A metal sheet precision forming die according to claim 1, characterized in that: The transmission unit comprises a supporting rod (401), a movable rod (402), a positioning rod (403), and a spring (404); The push rod (401) is axially slidably mounted in the inner cavity of the base (1) and extends to the inner side of the lower mold (2), and the push rod (401) is used to provide a guide for separating the metal plate from the lower mold (2); The positioning rod (403) is fixed to the protruding portion of the outer wall of the base (1), and the positioning rod (403) is used to provide guidance for the vertical movement of the movable rod (402); The movable rod (402) is fixedly connected to the bottom end of the positioning rod (403) and passes through the support rod (401) to extend above the upper mold (3); The two ends of the spring (404) are respectively clamped on the outer wall of the movable rod (402) and the outer wall of the protruding portion of the base (1), and the spring (404) is used to always provide a downward thrust for the movable rod (402).

3. The metal sheet precision forming die according to claim 1, characterized in that: The guide unit includes a push block (405) and a guide groove (406); The push block (405) is fixed to the outer wall of the movable rod (402) and extends to the inner cavity of the guide groove (406). The push block (405) is used to provide thrust for the axial movement of the push rod (401); The guide groove (406) is provided in the inner cavity of the push rod (401), and the guide groove (406) is used to receive the thrust from the push block (405).

4. A metal sheet precision forming die according to claim 3, characterized in that: The outer wall of the push block (405) matches the inner side of the guide groove (406), and the outer wall of the guide groove (406) is in an inclined state.

5. The metal sheet precision forming die according to claim 2, characterized in that: A movable groove for relative movement of the movable rod (402) is formed inside the push rod (401), and the inner movable groove of the push rod (401) matches the outer wall of the movable rod (402).

6. The metal sheet precision forming die according to claim 2, characterized in that: The outer wall of the end of the support rod (401) close to the lower mold (2) is in an inclined state, and the end of the support rod (401) in the inclined state is used to provide guidance for lifting the metal plate.

7. The metal sheet precision forming die according to claim 2, characterized in that: The outer wall of the movable rod (402) is in a "C"-shaped structure as a whole, and the upper end crossbar portion of the "C"-shaped movable rod (402) is located on the vertical movement track of the upper mold (3).

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