A press die and a press device

Abstract

The utility model relates to a kind of punch die and punching device, including die assembly, it includes first mounting seat and at least one die, at least one the die is set in the first mounting seat, one end of the die has recessed part;Punching assembly, it includes second mounting seat and at least one punch, at least one the punch is set in the second mounting seat, one end of the punch has protruding part, the protruding part can be housed in the recessed part.The number of the die is same with the punch;When working, the punch and the die along the position of height direction one-to-one correspondence.The utility model further provides a kind of punching device, cooperate as described above punch die, and the workpiece to be processed is carried out point connection.The utility model can accurately control pre-punching size and punching parameter, to ensure the reliability and consistency of connection point, improve punching precision, ensure that the point connection structure formed by punching meets the requirements.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a stamping die and a stamping device. Background Technology

[0002] Punching, a common metalworking method in traditional point-joining processes, is primarily used to create holes in sheet metal or profiles for subsequent riveting, bolting, or other assembly operations. In sheet metal joining processes, point-joining technology is widely used in industries such as electronics, automotive, and home appliances due to its high efficiency and reliability. Traditional round-dot joining processes are typically suitable for two sheets of similar thickness. Punching causes the upper and lower sheets to deform simultaneously, forming an interlocking structure, thus achieving rivetless connections between the sheet metal.

[0003] However, the shortcomings of existing technologies lie in the fact that when the thickness difference between the two connected plates is large, or when one of the plates is difficult to deform (such as castings, spring steel, etc.), traditional dot joint methods often fail to achieve ideal connection strength or meet aesthetic requirements. In addition, in some application scenarios, protrusions at the connection points may affect assembly or appearance.

[0004] Therefore, there is an urgent need for a process equipment that can both ensure connection strength and maintain surface flatness. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a stamping die and a stamping device, which pre-drills holes in the plate on the side of the die, and then controls the punch and die to cooperate to perform the punching operation; this utility model can be applied to situations where the thickness of two plates is significantly different, one of the plates is not easily deformed, and the connection point protrusion is not allowed, and can accurately control the pre-punching size and stamping parameters, thereby ensuring the reliability and consistency of the connection point, improving the stamping accuracy, and ensuring that the point connection structure formed by stamping meets the requirements.

[0006] To solve the above-mentioned technical problems, this utility model provides a stamping die, comprising, A die assembly includes a first mounting base and at least one die, wherein the at least one die is disposed on the first mounting base and one end of the die has a recess; A punch assembly includes a second mounting base and at least one punch, wherein at least one punch is disposed on the second mounting base, and one end of the punch has a protrusion that can be received in the recess.

[0007] In one embodiment of this utility model, the number of the dies is the same as the number of the punches; during operation, the positions of the punches and dies along the height direction correspond one-to-one.

[0008] This utility model also provides a stamping device, which, in conjunction with the stamping die described above, performs point connection on a workpiece to be processed. The workpiece to be processed includes a first sheet and a second sheet, wherein the first sheet has a pre-formed through hole. The stamping device includes... A base, on which a mounting base is provided; A support body, which is slidably connected to the base, the workpiece to be processed is detachably disposed on the support body, the support body is driven to move along a first direction, and the die assembly and the punch assembly are respectively located on both sides of the support body along the thickness direction. The driving mechanism includes a first driving member disposed on the mounting base. The first driving member is connected to the die assembly to drive the die assembly to move along the height direction. During operation, the die assembly moves toward the punch assembly under the drive of the first driving member. The die abuts against the edge of the through hole of the first plate, and the punch squeezes the second plate so that the second plate is squeezed into the through hole. The punch and the die press against each other, and the second plate is located between the punch and the die. The control terminal is communicatively connected to the support body and the drive mechanism to control the movement of the support body and the operation of the drive mechanism.

[0009] In one embodiment of this utility model, the base is further provided with a drive component mounting seat, and a second drive component is provided on the drive component mounting seat along the height direction, and the output end of the second drive component is connected to the mounting base.

[0010] In one embodiment of this utility model, an installation component is further included, the installation component including a base plate and an adapter plate, wherein the base plate is connected to the base; the adapter plate is slidably connected to the base plate, and the adapter plate is movable along the first direction; the support body is disposed on the adapter plate.

[0011] In one embodiment of this utility model, a driving assembly is further included. The driving assembly includes a lead screw transmission assembly and a third driving member. The third driving member is disposed on the base. The lead screw transmission assembly is connected to the output end of the third driving member. The lead screw transmission assembly is disposed along the first direction. The movable end of the lead screw transmission assembly is connected to the adapter plate to drive the adapter plate to move along the first direction.

[0012] In one embodiment of this utility model, a slide rail is provided on the base plate along the first direction, a slider is slidably disposed on the slide rail, and the adapter plate is fixedly connected to the slider.

[0013] In one embodiment of the present invention, a first clearance area is provided on the base plate and a second clearance area is provided on the adapter plate, so that the second drive member and the punch assembly can pass through.

[0014] In one embodiment of the present invention, a limiting mechanism is further included, the limiting mechanism comprising a first limiting component and a second limiting component, the first limiting component and the second limiting component being disposed opposite to each other at both ends of the support body along the first direction to limit the workpiece to be processed.

[0015] In one embodiment of the present invention, the first driving member and the second driving member include a driving cylinder.

[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The present invention protects a stamping die, including a die assembly and a punch assembly. The die assembly has at least one die, and the punch assembly has at least one punch. When multiple punches and dies are provided, their positions can correspond to each other. This arrangement can ensure stamping accuracy and stability. Each punch is aligned with its corresponding die to avoid hole shape deviation or die wear caused by misalignment. In addition, the stamping force can be evenly distributed on each punch to prevent die deformation or equipment wear caused by unilateral load. Furthermore, it can improve production efficiency, realize synchronous stamping of multiple holes, and form multiple holes in one stamping, reducing the process time of processing a single hole one time. This utility model protects a stamping device comprising a base, a mounting base, a support, a drive mechanism, and a control end. The stamping device cooperates with a stamping die to perform stamping operations on a first and a second sheet metal to be processed, forming a specific point connection structure. Specifically, it employs a pre-punching extrusion connection method, where through holes are pre-machined in thicker or non-deformable sheet metal. Through stamping, material from the thinner or deformable sheet metal is forced into the pre-punched holes to form a mechanical interlock. This effectively solves connection problems caused by differences in sheet metal thickness or material properties, while preventing connection point protrusions. It meets assembly requirements under special working conditions, and can precisely control the pre-punched hole size and stamping parameters, thereby ensuring the reliability and consistency of the connection points, improving stamping accuracy, and ensuring that the stamped point connection structure meets requirements. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the die cavity assembly of a stamping die according to a preferred embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the punch assembly of a stamping die according to a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the overall structure of the stamping device according to a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of a stamping device without a drive mechanism according to a preferred embodiment of the present invention.

[0022] Figure 5 yes Figure 4 Top view.

[0023] Figure 6 yes Figure 5 Enlarged view of point A (Schematic diagram of the workpiece to be processed).

[0024] Figure 7 This is a schematic diagram of the stamping device without a base according to a preferred embodiment of the present invention.

[0025] Figure 8 This is a structural schematic diagram of the mounting base, the first driving member, the second driving member, and the driving member mounting seat according to a preferred embodiment of the present invention.

[0026] Figure 9 This is a photograph of an electrical connection structure formed by stamping the first and second plates according to a preferred embodiment of the present invention.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Die assembly; 10. First mounting base; 11. Die; 110. Recess; 2. Punch assembly; 20. Second mounting base; 21. Punch; 3. Workpiece to be processed; 31. First plate; 310. Through hole; 32. Second plate; 40. Base; 41. Mounting base; 42. Support; 43. Base plate; 430. Slide rail; 431. Slider; 44. Adapter plate; 51. First driving component; 52. Second driving component; 520. Driving component mounting base; 53. Third driving component; 61. First limiting assembly; 62. Second limiting assembly. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example 1

[0029] Reference Figures 1 to 2 As shown, this utility model discloses a stamping die, including a die assembly 1. The die assembly 1 includes a first mounting base 10 and at least one die 11. At least one die 11 is disposed on the first mounting base 10, and one end of the die 11 has a recess 110. The stamping die also includes a punch assembly 2, which includes a second mounting base 20 and at least one punch 21. At least one punch 21 is disposed on the second mounting base 20. One end of the punch 21 has a protrusion. It should be noted that the protrusion can be received in the recess 110.

[0030] During operation, the punch assembly and the die assembly are driven to press against each other, so that the die 11 and the punch 12 press against each other on both sides of the workpiece to be processed, so as to perform point connection operation on the workpiece.

[0031] The number of the concave dies 11 is the same as the number of the convex dies 21; and during operation, the positions of the convex dies 21 and the concave dies 11 correspond one-to-one along the height direction.

[0032] Therefore, it can be understood that the stamping die to be protected by this utility model includes a die assembly and a punch assembly. The die assembly has at least one die, and the punch assembly has at least one punch. When there are multiple punches and dies, their positions can correspond to each other. This arrangement can ensure stamping accuracy and stability. Each punch is aligned with its corresponding die, avoiding hole shape deviation or die wear caused by misalignment. In addition, it can make the stamping force evenly distributed on each punch, preventing die deformation or equipment wear caused by unilateral load. Furthermore, it can improve production efficiency, realize synchronous stamping of multiple holes, and form multiple holes in one stamping, reducing the process time of processing a single hole one time.

[0033] Applications of this invention include multi-hole array processing, such as heat dissipation holes in electronic chassis, processing of filter screens, and high-precision parts, such as connector terminals, electrical connections of metal sheets, and punching processing. Example 2

[0034] This utility model also discloses a stamping device, combined with Figures 3 to 9 As shown, the stamping device, in conjunction with the stamping die as described in Embodiment 1, stamps the workpiece to be processed in order to achieve point connection.

[0035] The workpiece to be processed includes a first plate 31 and a second plate 32. The first plate 31 and the second plate are stacked along the height direction. The first plate 31 is located above the second plate 32. Through holes 310 are pre-set on the first plate. The number of through holes is set to multiple, and the multiple through hole arrays are arranged sequentially on the first plate.

[0036] The stamping device includes a base 40, and a mounting base 41 is provided on the base 40; The stamping device also includes a support body 42, which is slidably connected to the base 40. The workpiece to be processed is detachably disposed on the support body 42, and the support body 42 can be moved along a first direction when driven. Specifically, the concave mold assembly 1 and the convex mold assembly 2 are located on both sides of the support body 42 along the thickness direction.

[0037] The stamping device further includes a driving mechanism, which includes a first driving member 51 disposed on the mounting base 41. The first driving member 51 is connected to the die assembly 1 to drive the die assembly 1 to move along the height direction. During operation, the die assembly 1 moves toward the punch assembly 2 under the drive of the first drive member 51. The die 11 abuts against the edge of the through hole of the first plate 31, and the punch 21 presses the second plate 32 so that the second plate 32 is squeezed into the through hole. The punch 21 and the die 11 press against each other, and the second plate 32 is located between the punch 21 and the die 11, thereby forming a designated point connection structure between the first plate 31 and the second plate 32. The stamping device also includes a control terminal, which is connected in communication with the support body 42 and the drive mechanism to control the movement of the support body 42 and the operation of the drive mechanism.

[0038] In detail, during operation, the first driving member 51 extends and drives the die 11 to the limit position. At this time, the die 11 just contacts the first plate 31. At this time, the movement of the die 11 is restricted and it no longer moves downward. The second driving member 52 moves and drives the punch 21 to move upward. Finally, the punch 21 presses the second plate 32 into the pre-punched through hole of the first plate 31 to form a connecting structure.

[0039] Therefore, it can be understood that the stamping device protected by this utility model is provided with a base, a mounting base, a support body, a drive mechanism, and a control end. The stamping device cooperates with the stamping die to perform stamping operations on the first and second plates to be processed, forming a specific point connection structure. Specifically, a pre-punching extrusion connection method is adopted, that is, through holes are pre-processed on the thicker plate or non-deformable plate, and the material of the thinner or deformable plate is squeezed into the pre-punched hole by stamping to form a mechanical interlock, thereby effectively solving the connection problem caused by the difference in plate thickness or material characteristics, while avoiding the connection point protrusion, meeting the assembly requirements under special working conditions, and being able to accurately control the pre-punched hole size and stamping parameters, thereby ensuring the reliability and consistency of the connection point, improving the stamping accuracy, and ensuring that the point connection structure formed by stamping meets the requirements.

[0040] When the second plate 32 is pressed into the first plate 31 through the through hole to form a point connection structure, the thickness ratio of the second plate 32 to the first plate 31 is designed according to different processing requirements, thereby forming an edge or button structure on the side of the second plate 32 near the die 11. (Refer to...) Figure 8 As shown.

[0041] In a preferred embodiment, the base 40 is further provided with a drive member mounting seat 520. A second drive member 52 is provided on the drive member mounting seat 520 along the height direction. The output end of the second drive member 52 is connected to the mounting base 41. This arrangement can provide a certain support for the mounting base 41 to balance the weight of the mounting base 41.

[0042] In a preferred embodiment, the stamping device further includes a mounting assembly, which includes a base plate 43 and a transition plate 44, wherein the base plate 43 is connected to the base 40, the transition plate 44 is slidably connected to the base plate 43, and the transition plate 44 is movable along the first direction.

[0043] The support body 42 is disposed on the adapter plate 44, so that the support body 42 can move along the first direction under the drive of the adapter plate 44.

[0044] The stamping device further includes a drive assembly, which includes a lead screw drive assembly 54 and a third drive member 53. The third drive member 53 is disposed on the base 40. The lead screw drive assembly 54 is connected to the output end of the third drive member 53. The lead screw drive assembly 54 is arranged along the first direction. The movable end of the lead screw drive assembly 54 is connected to the adapter plate 44 to drive the adapter plate 44 to move along the first direction.

[0045] Furthermore, a slide rail 430 is provided on the base plate 43 along the first direction, and a slider 431 is slidably disposed on the slide rail 430, and the adapter plate 44 is fixedly connected to the slider 431.

[0046] In this way, multiple workpieces 3 to be processed located on the support 42 can be punched sequentially along the first direction to achieve batch punching, thereby greatly improving the efficiency of punching and ensuring the consistency and reliability of punching.

[0047] In detail, the base plate 43 has a first clearance area and the adapter plate 44 has a second clearance area, so that the second drive member 52 and the punch assembly 2 can pass through.

[0048] The support 42 includes a tray with a mounting groove, and the workpiece 3 to be processed can be accommodated and confined in the mounting groove.

[0049] The stamping device further includes a limiting mechanism, which includes a first limiting component 61 and a second limiting component 62. The first limiting component 61 and the second limiting component 62 are disposed opposite to each other at both ends of the support body 42 along the first direction to limit the workpiece 3 to be processed.

[0050] The first limiting component 61 includes an elastic clamp and a pressure block. When the elastic clamp presses the pressure block, the pressure block can abut against one end of the three pieces to be processed.

[0051] In a preferred embodiment, the first drive member 51 and the second drive member 52 include drive cylinders. Specifically, the first drive member 51 is a pneumatic-hydraulic booster cylinder.

[0052] In a specific embodiment of the present invention, the upper copper plate (first plate) of the workpiece to be processed has a thickness of 1.6 mm, and the lower copper plate (second plate) has a thickness of 3.5 mm. The upper plate (first plate) has pre-punched holes at the connection points, and the lower plate (second plate) needs to be squeezed into these holes to form a connection. Because of the significant difference in thickness between the two plates, a conventional dot connection method cannot be used. However, by employing the stamping device of this invention, point connection processing of the workpiece can be achieved.

[0053] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0055] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A stamping die, characterized in that: include, A die assembly includes a first mounting base and at least one die, wherein the at least one die is disposed on the first mounting base and one end of the die has a recess; A punch assembly includes a second mounting base and at least one punch, wherein at least one punch is disposed on the second mounting base, and one end of the punch has a protrusion that can be received in the recess.

2. A stamping die according to claim 1, characterized in that: The number of dies is the same as the number of punches; during operation, the positions of the punches and dies correspond one-to-one along the height direction.

3. A stamping device, characterized in that: In conjunction with the stamping die as described in claim 1, point connections are made to the workpiece to be processed. The workpiece to be processed includes a first sheet and a second sheet. The first sheet has a pre-formed through hole. The stamping device includes... A base, on which a mounting base is provided; A support body is slidably connected to the base, the workpiece to be processed is detachably disposed on the support body, the support body is driven to move along a first direction, and the die assembly and the punch assembly are respectively located on both sides of the support body along the thickness direction. The driving mechanism includes a first driving member disposed on the mounting base. The first driving member is connected to the die assembly to drive the die assembly to move along the height direction. During operation, the die assembly moves toward the punch assembly under the drive of the first driving member. The die abuts against the edge of the through hole of the first plate, and the punch squeezes the second plate so that the second plate is squeezed into the through hole. The punch and the die press against each other, and the second plate is located between the punch and the die. The control terminal is communicatively connected to the support body and the drive mechanism to control the movement of the support body and the operation of the drive mechanism.

4. A stamping device according to claim 3, characterized in that: The base is also provided with a drive component mounting seat, and a second drive component is provided on the drive component mounting seat along the height direction. The output end of the second drive component is connected to the mounting base.

5. A stamping device according to claim 3, characterized in that: It also includes an installation assembly, which includes a base plate and an adapter plate, wherein the base plate is connected to the base; the adapter plate is slidably connected to the base plate and is movable along the first direction; and the support body is disposed on the adapter plate.

6. A stamping device according to claim 5, characterized in that: It also includes a drive assembly, which includes a lead screw drive assembly and a third drive member. The third drive member is disposed on the base. The lead screw drive assembly is connected to the output end of the third drive member. The lead screw drive assembly is disposed along the first direction. The movable end of the lead screw drive assembly is connected to the adapter plate to drive the adapter plate to move along the first direction.

7. A stamping device according to claim 5, characterized in that: A slide rail is provided on the base plate along the first direction, and a slider is slidably disposed on the slide rail. The adapter plate is fixedly connected to the slider.

8. A stamping device according to claim 5, characterized in that: The base plate has a first clearance area and the adapter plate has a second clearance area to allow the punch assembly to pass through.

9. A stamping device according to claim 3, characterized in that: It also includes a limiting mechanism, which includes a first limiting component and a second limiting component. The first limiting component and the second limiting component are disposed opposite to each other at both ends of the support body along the first direction to limit the workpiece to be processed.

10. A stamping device according to claim 4, characterized in that: The first driving member and the second driving member include driving cylinders.

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