A cold stamping forming device for metal mold production

Abstract

The utility model relates to stamping equipment technical field, concretely is a kind of cold stamping forming device for metal die production, including machine body, and stamping forming mechanism is arranged on machine body, and stamping forming mechanism includes the hydraulic cylinder fixedly connected on machine body and the first connecting seat fixedly connected on machine body, and the output end of hydraulic cylinder is provided with second connecting seat, and pre-tightening assembly is slidably connected on second connecting seat, and first connecting seat is provided with first sliding bar and lower die, and first connecting seat is provided with upper die in the position corresponding with lower die;Lower die is provided with auxiliary positioning assembly.Affinity effect lies in: in the process of raw material cold stamping processing, raw material can be centered and arranged, avoid the situation that shape deformation or feature misplacement occurs due to raw material not being arranged, reduce the scrap rate, and pre-tightening assembly pre-tightens raw material before stamping, ensure that lower die and upper die are evenly stressed in the process of stamping processing, to ensure service life.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a cold stamping forming device for metal mold production. Background Technology

[0002] Cold stamping forming equipment for metal mold production refers to specialized equipment that, under ambient temperature conditions, applies mechanical pressure to plastically deform metal sheets, profiles, or other blanks, ultimately forming components conforming to the pre-set shape of a metal mold cavity. During operation, no heating of the metal is required; relying on the synergistic effect of the mold and pressure, the metal blank undergoes permanent deformation under the mold's constraint, rapidly replicating the mold cavity structure. It is widely used in the automotive, electronics, and home appliance industries for producing casings, connectors, fasteners, etc., offering advantages such as high forming efficiency, stable workpiece precision, preservation of the original mechanical properties of the metal, and suitability for large-scale mass production.

[0003] A cold stamping forming device for metal mold production disclosed in Chinese patent CN223070231U has good safety features, preventing workers from scraping the stamping head during loading and unloading, and can clamp and limit the sheet metal to prevent it from shifting. However, compared with existing technologies and comparative solutions, this cold stamping forming device still has the following problems in actual use: Existing cold stamping forming equipment often requires operators to manually adjust the position of raw materials after loading them for processing. Improperly aligned raw materials directly affect processing accuracy, leading to shape deformation such as skewed edges, irregular curvature, or misalignment of features like pre-set holes or clips. This renders workpieces unusable, directly increasing scrap rates and production costs. Furthermore, improperly aligned raw materials entering the stamping area cause uneven stress on the die, with some areas bearing excessive pressure while others fail to contact the workpiece. Over time, this can cause die edge breakage, cavity wear, and shorten die life. In severe cases, misaligned material may become stuck in the die gaps, leading to overload or even damage to the stamping machine. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a cold stamping forming device for metal mold production.

[0005] The purpose of this utility model is achieved through the following technical solution: a cold stamping forming device for metal mold production, including a machine body, a stamping forming mechanism provided on the machine body, the stamping forming mechanism including a hydraulic cylinder fixedly connected to the machine body and a first connecting seat fixedly connected to the machine body, a second connecting seat provided at the output end of the hydraulic cylinder, a pre-tightening component slidably connected on the second connecting seat, a first sliding rod and a lower mold provided on the first connecting seat, and an upper mold provided at a position corresponding to the lower mold on the first connecting seat; The lower mold is equipped with auxiliary positioning components; The auxiliary positioning component includes a third connecting seat, a second elastic element at the bottom of the third connecting seat, a connecting groove on the third connecting seat, a limit rod fixedly connected inside the connecting groove, a slider slidably connected to the limit rod, a third elastic element between the slider and the third connecting seat, a contact block fixedly connected to the slider, and a roller on one side of the contact block.

[0006] Preferably, the second connecting seat is slidably connected to the first slide rod, and the horizontal height of the bottom of the pre-tightening component is lower than the horizontal height of the bottom of the upper mold.

[0007] Preferably, the pre-tightening assembly includes a connecting plate, a second slide rod is fixedly connected to the top of the connecting plate, a limit block is fixedly connected to the end of the second slide rod away from the connecting plate, a first elastic element is provided on the connecting plate, and a wedge block is fixedly connected to the bottom of the connecting plate.

[0008] Preferably, there are multiple auxiliary positioning components, which are distributed in a circumferential array on the lower mold. The number of wedge blocks is the same as the number of auxiliary positioning components, and the positions of the wedge blocks correspond to the positions of the auxiliary positioning components.

[0009] Preferably, the lower mold has a storage groove, and the third connecting seat is slidably connected inside the storage groove.

[0010] Preferably, the second elastic element is disposed between the third connecting seat and the lower mold.

[0011] Preferably, the position of the roller corresponds to the position of the wedge block.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This cold stamping forming device for metal mold production can center and align the raw materials during the cold stamping process, avoiding shape deformation or feature misalignment caused by improper alignment, thus reducing the scrap rate. At the same time, the pre-tightening component pre-tightens the raw materials before stamping, ensuring that the lower and upper dies are subjected to uniform force during the stamping process, thereby ensuring service life.

[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the stamping forming mechanism of this utility model in its first state. Figure 3 This is a schematic diagram of the second state of the stamping forming mechanism of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the third state of the stamping forming mechanism of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the pre-tightening component of this utility model; Figure 8 This is a structural diagram showing the connection state of the lower mold and the auxiliary positioning component of this utility model; Figure 9 This is a structural diagram showing the connection state between the first connecting seat and the lower mold of this utility model; Figure 10 This is a schematic diagram of the auxiliary positioning component of this utility model.

[0016] In the diagram: 1. Machine body; 2. Hydraulic cylinder; 3. First connecting seat; 4. Second connecting seat; 5. Pre-tightening assembly; 501. Connecting plate; 502. Second slide rod; 503. Limiting block; 504. First elastic element; 505. Wedge block; 6. First slide rod; 7. Lower mold; 701. Storage groove; 71. Auxiliary positioning assembly; 711. Third connecting seat; 712. Second elastic element; 713. Connecting groove; 714. Limiting rod; 715. Slider; 716. Third elastic element; 717. Contact block; 718. Roller; 8. Upper mold. Detailed Implementation

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, in part of which will be obvious from the description or may be learned by practice of the invention.

[0019] like Figures 1 to 3 , Figure 5 As shown, a cold stamping forming device for metal mold production includes a machine body 1, a stamping forming mechanism on the machine body 1, a hydraulic cylinder 2 fixedly connected to the machine body 1 and a first connecting seat 3 fixedly connected to the machine body 1, a second connecting seat 4 on the output end of the hydraulic cylinder 2, a pre-tightening component 5 slidably connected to the second connecting seat 4, a first sliding rod 6 and a lower mold 7 on the first connecting seat 3, the second connecting seat 4 slidably connected to the first sliding rod 6, an upper mold 8 on the first connecting seat 3 at a position corresponding to the lower mold 7, and the bottom of the pre-tightening component 5 being lower than the bottom of the upper mold 8. like Figure 7 As shown, the pre-tightening assembly 5 includes a connecting plate 501, a second slide rod 502, a limiting block 503, a first elastic element 504, and a wedge block 505. The top of the connecting plate 501 is fixedly connected to the second slide rod 502, and the end of the second slide rod 502 away from the connecting plate 501 is fixedly connected to the limiting block 503. The first elastic element 504 is provided on the connecting plate 501, and the bottom of the connecting plate 501 is fixedly connected to the wedge block 505 by bolts. like Figure 4 , Figure 6 and Figure 8 As shown, the lower mold 7 is provided with an auxiliary positioning component 71. There are multiple auxiliary positioning components 71, which are distributed in a circumferential array on the lower mold 7. The number of wedge blocks 505 is the same as the number of auxiliary positioning components 71, and the position of the wedge blocks 505 corresponds to the position of the auxiliary positioning components 71. like Figure 4 , Figure 6 , Figures 8 to 10As shown, the auxiliary positioning component 71 includes a third connecting seat 711. A receiving groove 701 is provided on the lower mold 7. The third connecting seat 711 is slidably connected inside the receiving groove 701. A second elastic member 712 is provided at the bottom of the third connecting seat 711. The second elastic member 712 is provided between the third connecting seat 711 and the lower mold 7. A connecting groove 713 is provided on the third connecting seat 711. A limiting rod 714 is fixedly connected inside the connecting groove 713. A slider 715 is slidably connected on the limiting rod 714. A third elastic member 716 is provided between the slider 715 and the third connecting seat 711. A contact block 717 is fixedly connected on the slider 715. A roller 718 is provided on one side of the contact block 717. The position of the roller 718 corresponds to the position of the wedge block 505.

[0020] All electronic components mentioned in this article are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional, known device such as a computer. The electronic components, along with their associated control systems, power supply modules, circuits, and piping, can be provided by the manufacturer. Furthermore, all electronic components and control modules involved in this invention are existing technologies, fully capable of being implemented by those skilled in the art, and require no further explanation. This invention does not involve any improvement to the structure or usage of the electronic components.

[0021] The work process is as follows: S1. When loading materials, place the raw materials to be processed between multiple auxiliary positioning components 71 on the lower mold 7; S2. When in use, start the hydraulic cylinder 2. The hydraulic cylinder 2 drives the pre-tightening component 5 and the upper mold 8 to move downward through the second connecting seat 4. As the pre-tightening component 5 moves, the wedge block 505 contacts the roller 718. S3. As the wedge block 505 moves downward, the roller 718 drives the slider 715 to slide in the connecting groove 713 through the contact block 717. The third elastic element 716 contracts, and the contact block 717 pushes the raw material to center and align it. S4. As the pre-tightening component 5 continues to press down, the third connecting seat 711 slides in the storage groove 701, the second elastic element 712 retracts, and the connecting plate 501 pre-tightens and limits the raw material. S5. As the second connecting seat 4 continues to press down, the first elastic element 504 contracts, and the upper mold 8 and the lower mold 7 stamp the raw material. S6. After the raw material is formed, the hydraulic cylinder 2 is activated to move the second connecting seat 4 upward. The first elastic element 504 rebounds, driving the pre-tightening component 5 to reset. The second elastic element 712 rebounds, driving the third connecting seat 711 to reset. The third elastic element 716 rebounds, driving the contact block 717 to reset via the slider 715. During the cold stamping process of the raw material, the raw material can be centered and aligned, avoiding shape deformation or feature misalignment caused by the raw material not being aligned, thus reducing the scrap rate. At the same time, the pre-tightening component 5 pre-tightens the raw material before stamping, ensuring that the lower die 7 and the upper die 8 are subjected to uniform force during the stamping process, thereby ensuring service life.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cold stamping forming apparatus for metal mold production, characterized in that: The machine includes a body (1), on which a stamping forming mechanism is provided. The stamping forming mechanism includes a hydraulic cylinder (2) fixedly connected to the body (1) and a first connecting seat (3) fixedly connected to the body (1). A second connecting seat (4) is provided at the output end of the hydraulic cylinder (2). A pre-tightening component (5) is slidably connected to the second connecting seat (4). A first sliding rod (6) and a lower mold (7) are provided on the first connecting seat (3). An upper mold (8) is provided on the first connecting seat (3) at a position corresponding to the lower mold (7). The lower mold (7) is provided with an auxiliary positioning component (71). The auxiliary positioning component (71) includes a third connecting seat (711), a second elastic element (712) is provided at the bottom of the third connecting seat (711), a connecting groove (713) is provided on the third connecting seat (711), a limiting rod (714) is fixedly connected inside the connecting groove (713), a slider (715) is slidably connected on the limiting rod (714), a third elastic element (716) is provided between the slider (715) and the third connecting seat (711), a contact block (717) is fixedly connected on the slider (715), and a roller (718) is provided on one side of the contact block (717).

2. The cold stamping forming apparatus for metal mold production according to claim 1, characterized in that: The second connecting seat (4) is slidably connected to the first slide rod (6), and the bottom of the pre-tightening component (5) is lower than the bottom of the upper mold (8).

3. The cold stamping forming apparatus for metal mold production according to claim 1, characterized in that: The pre-tightening assembly (5) includes a connecting plate (501), a second slide rod (502) is fixedly connected to the top of the connecting plate (501), a limit block (503) is fixedly connected to one end of the second slide rod (502) away from the connecting plate (501), a first elastic element (504) is provided on the connecting plate (501), and a wedge block (505) is fixedly connected to the bottom of the connecting plate (501).

4. The cold stamping forming apparatus for metal mold production according to claim 3, characterized in that: The auxiliary positioning components (71) are multiple and are arranged in a circular array on the lower mold (7). The number of wedge blocks (505) is the same as the number of auxiliary positioning components (71), and the position of the wedge blocks (505) corresponds to the position of the auxiliary positioning components (71).

5. The cold stamping forming apparatus for metal mold production according to claim 1, characterized in that: The lower mold (7) has a storage groove (701), and the third connecting seat (711) is slidably connected inside the storage groove (701).

6. The cold stamping forming apparatus for metal mold production according to claim 1, characterized in that: The second elastic element (712) is disposed between the third connecting seat (711) and the lower mold (7).

7. The cold stamping forming apparatus for metal mold production according to claim 4, characterized in that: The position of the roller (718) corresponds to the position of the wedge block (505).

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