Stamping mechanism and die thereof

Abstract

The utility model provides a stamping mechanism and a die thereof, and the upper end of a supporting assembly in the stamping mechanism is used for supporting a plane arm; two pressing blocks are rotatably mounted at the lower end of the lower pressing seat, and the two pressing blocks are used for being inserted between the two connecting arms; guide structures are arranged at the lower ends of the two pressing blocks correspondingly, and the planar arm extrudes the guide structures to enable the two pressing blocks to rotate away from each other. The two side pressing assemblies are arranged on the two sides of the supporting assembly correspondingly, each side pressing assembly is provided with a horizontal moving block, and the horizontal moving blocks are used for extruding the connecting arms. According to the scheme, the two pressing blocks which can rotate to be far away from each other are arranged, after the two pressing blocks rotate to be far away from each other, the lower ends of the two pressing blocks abut against the lower end of the connecting arm, and gaps are reserved between the upper ends of the two pressing blocks and the connecting arm. The side pressing assembly extrudes the connecting arm to enable the connecting arm to be attached to the pressing block, so that bending of the connecting arm is achieved, and meanwhile deformation of the plane arm at the bottom can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment, specifically to a stamping mechanism and its mold. Background Technology

[0002] like Figure 1 As shown, in the existing U-shaped profile 11, the two connecting arms 13 are vertical before processing. During processing, the two vertical connecting arms 13 need to be compressed so that the upper ends of the two connecting arms 13 are close to each other, such as... Figure 2 As shown, the two connecting arms 13 are tilted.

[0003] The problem with the existing technology is that when the two connecting arms 13 are tilted, the lowermost planar arm 12 is easily deformed, thus affecting the product's accuracy. Furthermore, the existing technology cannot solve this problem.

[0004] Therefore, the technical problem that this application needs to solve is: how to prevent the lower planar arm from deforming when the connecting arm of the U-shaped structural profile is extruded. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model proposes a stamping mechanism and its mold. This solution utilizes two pressure blocks that can rotate away from each other. When the two pressure blocks rotate away, their lower ends press against the lower end of the connecting arm, while the upper ends of the two pressure blocks maintain a gap with the connecting arm. The side-pressing assembly compresses the connecting arm, causing it to fit against the pressure blocks, thus achieving bending of the connecting arm while effectively preventing deformation of the bottom planar arm.

[0006] Specifically, this utility model proposes a stamping mechanism for processing U-shaped profiles, wherein the U-shaped profile has planar arms and connecting arms, with the connecting arms located at both ends of the planar arms. The stamping mechanism includes:

[0007] A support assembly, the upper end of which is used to support the planar arm;

[0008] The lower pressure seat has two pressure blocks rotatably mounted on its lower end. The two pressure blocks are used to insert between two connecting arms. The lower ends of the two pressure blocks are respectively provided with guide structures. The planar arms use the extrusion guide structures to make the two pressure blocks rotate away from each other.

[0009] The two side-pressure components are respectively disposed on both sides of the support component, and each side-pressure component is provided with a horizontal moving block for pressing the connecting arm.

[0010] Preferably, the horizontal moving block has a beveled portion on the side facing the connecting arm.

[0011] Preferably, a pressing drive is provided above the pressing seat, and the pressing seat and the pressing drive are connected by a transmission.

[0012] Preferably, each of the side pressure components further includes two transmission mechanisms, each transmission mechanism including a vertical moving block, with a first elastic support member provided below the vertical moving block; the vertical moving block is provided with a first inclined block portion, and the horizontal moving block is provided with a second inclined block portion;

[0013] The first inclined block portion is in surface contact with the second inclined block portion, which is used to drive the second inclined block portion to move in the horizontal direction.

[0014] Preferably, it also includes a pressure rod, which is located above the vertical moving block, and the downward driving member drives the vertical moving block to move through the pressure rod.

[0015] Preferably, the support assembly includes a support column and a second elastic support member, the upper end of the support column is used to support the planar arm of the profile, and the lower end of the support column is mounted on the second elastic support member.

[0016] Meanwhile, this application proposes a mold that includes the above-mentioned stamping mechanism.

[0017] Furthermore, the mold includes: an upper mold assembly and a lower mold assembly; the upper mold assembly is used to install a lower pressure seat and a pressure rod, and the upper mold assembly is connected to a lower pressure drive component; the lower mold assembly is used to install a side pressure component and a support component.

[0018] Furthermore, the downward driving component is a pneumatic cylinder or a hydraulic cylinder. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is the front view of the profile before processing;

[0021] Figure 2 This is the front view of the profile after processing;

[0022] Figure 3 This is a schematic diagram of the stamping mechanism proposed in Example 1;

[0023] Figure 4 yes Figure 3 A magnified schematic diagram of the local structure at point A;

[0024] Figure 5 This is a schematic diagram of the vertical moving block in Embodiment 1;

[0025] Figure 6 This is a schematic diagram of the structure of the horizontal moving block in Example 1;

[0026] Figure 7 This is a schematic diagram of the movement direction when the vertical moving block and the horizontal moving block separate in Embodiment 1;

[0027] Figure 8 This is a schematic diagram showing the movement direction of the vertical moving block and the horizontal moving block when they approach each other in Embodiment 1;

[0028] Figure 9 This is a schematic diagram of the lower pressure seat in Example 1;

[0029] Figure 10 This is a front view of one of the two pressing blocks in Example 1;

[0030] Figure 11 This is a side view of one of the two pressing blocks in Example 1;

[0031] Figure 12 This is a front view of one of the two pressing blocks in Example 1;

[0032] Figure 13 This is a side view of one of the two pressing blocks in Example 1;

[0033] Figure 14 This is a schematic diagram of the module structure in Example 2;

[0034] Figure 15 yes Figure 14 A magnified view of the structure at point B in the middle;

[0035] Figure 16 This is a schematic diagram showing the positional relationship between the first and second receiving ports in Embodiment 2.

[0036] The reference numerals used in the attached figures are as follows:

[0037] 11-Profile; 12-Planar arm; 13-Connecting arm; 14-Lower pressure seat; 15-Pressure block; 16-Guide slope; 17-Horizontal moving block; 18-Sloping part; 19-Vertical moving block; 20-First elastic support; 21-First inclined block; 22-Second inclined block; 23-Pressure rod; 24-Support column; 25-Second elastic support; 26-Upper mold assembly; 27-Lower mold assembly; 28-First lug; 29-Second lug; 30-Upper mold base; 31-Upper pad; 32-Upper clamping plate; 33-Removing back Plate; 34-Stripping plate; 35-Third spring; 36-First receiving port; 37-Through hole; 38-Lower template; 39-Lower pad; 40-Lower mold base; 41-Foot pad; 42-Second receiving port; 43-First mounting hole; 44-Second mounting hole; 45-First guide hole; 46-Second guide hole; 47-First ejector rod; 48-First spring; 49-First locking block; 50-Second ejector rod; 51-Second spring; 52-Second locking block; 53-First tilting insertion interface; 54-Second tilting insertion interface. Detailed Implementation

[0038] The technical solutions of this application will be further described below with reference to specific embodiments, but this application is not limited to these embodiments.

[0039] Example 1

[0040] like Figures 1 to 13 This embodiment proposes a stamping mechanism for processing a U-shaped profile 11, wherein the U-shaped profile 11 has a planar arm 12 and a connecting arm 13, the connecting arm 13 is located at both ends of the planar arm 12 and is arranged vertically. The stamping mechanism includes:

[0041] A support assembly, the upper end of which is used to support the planar arm 12;

[0042] like Figure 3 , Figure 4 and Figure 9 As shown, the lower pressure seat 14 has two pressure blocks 15 rotatably mounted on its lower end. The two pressure blocks 15 are used to be inserted between the two connecting arms 13. The lower ends of the two pressure blocks 15 are respectively provided with guide structures, which are guide slopes 16. The planar arm 12 uses the guide slopes 16 to squeeze the two pressure blocks 15 to rotate away.

[0043] Side-pressure components, two of which are respectively disposed on both sides of the support component, each of which is provided with a horizontal moving block 17, the horizontal moving block 17 being used to press the connecting arm 13.

[0044] The technical advantage of this solution is that by setting two pressure blocks 15 that can rotate away from each other, when the two pressure blocks 15 rotate away, their lower ends press against the lower end of the connecting arm 13, while the upper ends of the two pressure blocks 15 are spaced apart from the connecting arm 13. The side pressure assembly compresses the connecting arm 13, causing the connecting arm 13 to fit against the pressure blocks 15, thereby achieving bending of the connecting arm 13 and effectively preventing deformation of the bottom planar arm 12.

[0045] Furthermore, the two pressure blocks 15 are arranged in a mirror image.

[0046] Furthermore, the upper ends of the guide slopes 16 of the two pressure blocks 15 are close to each other, while the lower ends of the guide slopes 16 of the two pressure blocks 15 are far apart from each other. The guide slopes 16 of the two pressure blocks 15 form an inverted V-shaped structure.

[0047] The advantages of this solution are:

[0048] 1. Two pressure blocks 15 are installed using a rotational installation method. When the pressure blocks 15 descend, the guide slopes 16 at the bottom of the two pressure blocks 15 press against the planar arm 12, causing the guide slopes 16 to move until they become flat. At this point, the pressure blocks 15 stop rotating, and the guide slopes 16 and planar arm 12 are in surface contact. Simultaneously, the side of the pressure block 15 facing the connecting arm 13 changes from an initial vertical surface to an inclined surface, thus providing internal support. When the side pressure assembly presses against the connecting arm 13, the connecting arm 13 fits against the side of the pressure block 15, resulting in precise deformation of the connecting arm 13. Therefore, the connecting arm 13 in this design has the advantage of high machining accuracy.

[0049] Second, this solution also facilitates material removal. When the two pressure blocks 15 move upward, the guide slope 16 of the pressure block 15 automatically separates from the planar arm 12. At the same time, the pressure blocks 15 move closer to each other under the action of gravity. At this time, the pressure blocks 15 only need to move upward to automatically remove the material from the profile 11, which has the advantage of high processing efficiency.

[0050] Furthermore, such as Figure 10 and Figure 11 As shown, one of the two pressure blocks 15 is provided with two first lugs 28, and the first lugs 28 are provided with rotating mounting holes on the mounting shaft at the lower end of the lower pressure seat 14.

[0051] like Figure 12 and Figure 13 As shown, another pressure block 15 is provided with two second lugs 29, and the second lugs 29 are provided with rotating mounting holes.

[0052] A gap is left between the two first lugs 28 to accommodate the second lug 29, so that the two pressure blocks 15 do not interfere with each other when rotating.

[0053] The first lug 28 and the second lug 29 are mounted on the mounting shaft at the lower end of the pressure seat 14 through their respective rotating mounting holes.

[0054] In one embodiment of this invention, the horizontal moving block 17 has a beveled portion 18 on the side facing the connecting arm 13. During processing, the connecting arm 13 fits against the beveled portion 18, thus the beveled portion 18 can further improve the bending accuracy of the connecting arm 13.

[0055] In one embodiment of this invention, a pressing drive is provided above the pressing seat 14, and the pressing seat 14 and the pressing drive are connected in a transmission manner.

[0056] As one embodiment of this example, each of the side pressure components further includes two transmission mechanisms, each transmission mechanism including a vertical moving block 19, with a first elastic support member 20 provided below the vertical moving block 19; a first inclined block portion 21 is provided on the vertical moving block 19, and a second inclined block portion 22 is provided on the horizontal moving block 17.

[0057] The first inclined block 21 is in surface contact with the second inclined block 22, which is used to drive the second inclined block 22 to move in the horizontal direction.

[0058] Furthermore, the lower ends of the first block portion and the second inclined block portion 22 in the inclination direction are both far away from the support component, while the upper ends of the first block portion and the second inclined block portion 22 in the inclination direction are both close to the support component.

[0059] Furthermore, the vertical moving block 19 is provided with a first inclined insertion interface 53 for slidingly installing the second inclined block portion 22, and the horizontal moving block 17 is provided with a second inclined insertion interface 54 for slidingly installing the first inclined block portion 21.

[0060] As one embodiment of this invention, a pressure rod 23 is also included. The pressure rod 23 is located above the vertical moving block 19, and the downward driving member drives the vertical moving block 19 to move through the pressure rod 23.

[0061] As one embodiment of this example, the support assembly includes a support column 24 and a second elastic support member 25. The upper end of the support column 24 is used to support the planar arm 12 of the profile 11, and the lower end of the support column 24 is mounted on the second elastic support member 25.

[0062] Example 2

[0063] like Figures 1 to 16 This application proposes a mold that includes the stamping mechanism of Embodiment 1.

[0064] Furthermore, the mold includes: an upper mold assembly 26 and a lower mold assembly 27. The upper mold assembly 26 is used to install the lower pressure seat 14 and the pressure rod 23, and the upper mold assembly 26 is connected to the lower pressure drive component; the lower mold assembly 27 is used to install the side pressure component and the support component.

[0065] Furthermore, the upper mold assembly 26 has an installation space for fixing the pressure rod 23 and the lower pressure seat 14. The lower mold assembly 27 houses the side pressure assembly and the support assembly.

[0066] Furthermore, the upper mold assembly 26, from top to bottom, includes an upper mold base 30, an upper pad 31, an upper clamping plate 32, a backing plate 33, and a stripper plate 34. The upper mold base 30, upper pad 31, and upper clamping plate 32 are fixed together, and the backing plate 33 and stripper plate 34 are fixed together. The backing plate 33 is connected to the upper mold base 30 via a third spring 35. At this time, the upper pad 31 and upper clamping plate 32 are provided with clearance openings for installing the third spring 35. When the upper mold assembly 26 moves upward, under the action of the third spring 35, the lower pressure seat 14 continues to press the planar arm 12. When the pressure rod 23 moves upward, the side pressure assembly can first separate from the profile 11. Then the lower pressure seat 14 moves upward with the stripper plate 34, at which time the pressure block 15 separates from the profile 11.

[0067] Furthermore, the stripper plate 34 is provided with a first receiving opening 36, and a through hole 37 is provided between the stripper back plate 33 and the upper clamping plate 32. The through hole 37 communicates with the first receiving opening 36. The pressure rod 23 passes through the through hole 37, with its upper end fixed to the lower surface of the upper pad plate 31 and its lower end passing through the first receiving opening 36 to press the vertically moving block 19. There are two through holes 37 and two pressure rods 23. The installation space includes the first receiving opening 36 and the through hole 37. A lower pressure seat 14 is fixed in the first receiving opening 36.

[0068] Furthermore, the lower mold assembly 27 includes, from top to bottom, a lower template 38, a lower backing plate 39, and a lower mold base 40. The lower template 38, the lower backing plate 39, and the lower mold base 40 are fixedly connected in sequence, and a pad 41 is fixed to the lower end of the lower mold base 40.

[0069] Furthermore, the lower mold plate 38 is provided with a second receiving opening 42, which is connected to the first receiving opening 36. The lower mold base 40 is provided with a first mounting hole 43 and a second mounting hole 44; the lower pad 39 is provided with a first guide hole 45 and a second guide hole 46, the upper ends of the first guide hole 45 and the second guide hole 46 are respectively connected to the second receiving opening 42, the lower end of the first guide hole 45 is connected to the first mounting hole 43, and the lower end of the second guide hole 46 is connected to the second mounting hole 44.

[0070] Furthermore, the support column 24, the vertical moving block 19, and the horizontal moving block 17 are respectively disposed in the second mounting hole 44. The horizontal moving block 17 and the vertical moving block 19 are respectively disposed on both sides of the support column 24, and the horizontal moving block 17 is located between the vertical moving block 19 and the support column 24.

[0071] The first elastic support member 20 includes a first push rod 47, a first spring 48, and a first locking block 49. The first spring 48 is installed in the first mounting hole 43 via the first locking block 49. The first push rod 47 is slidably installed in the first guide hole 45 in the vertical direction. The lower end of the first push rod 47 is connected to the first spring 48, and the upper end of the first push rod 47 is fixed with a vertical moving block 19. Since there are two first elastic support members 20, there are also two first guide holes 45 and two first mounting holes 43.

[0072] The first mounting hole 43 is a threaded hole. Furthermore, the first locking block 49 is a stop screw, which is installed in the internal thread of the first mounting hole 43.

[0073] The second elastic support member 25 includes: a second push rod 50, a second spring 51, and a second locking block 52. The second spring 51 is installed in the second mounting hole 44 through the second locking block 52. The second push rod 50 is slidably installed in the second guide hole 46 in the vertical direction. The lower end of the second push rod 50 is connected to the second spring 51, and the upper end of the second push rod 50 is fixed with the support column 24.

[0074] The second mounting hole 44 is a threaded hole, and the second locking block 52 is a stop screw, which is installed in the internal thread of the second mounting hole 44.

[0075] Furthermore, the downward driving component is a pneumatic cylinder or a hydraulic cylinder.

[0076] Furthermore, in this solution, the mold is set in the punch press, and the punch press's downward driving component is connected to the upper mold assembly 26.

[0077] The working principle of this solution is as follows:

[0078] The U-shaped profile 11 is placed on the support column 24. The press-down drive of the punch press is activated, causing the upper die assembly 26 to move downward. First, the pressure block 15 on the lower pressure seat 14 contacts and presses against the planar arm 12. The two pressure blocks 15 separate from each other and are in an inclined state. At this time, the stripper plate 33 and the stripper plate 34 stop moving, and the second spring 51 is in a compressed state.

[0079] Then the third spring 35 is compressed. At this time, the upper mold base 30, the upper pad 31, and the upper clamping plate 32 continue to move downward. The pressure rod 23 presses down on the vertical moving block 19. At this time, the first push rod 47 moves downward, the first spring 48 is compressed, and the horizontal moving block 17 presses towards the connecting arm 13 of the profile 11. The inclined part 18 of the horizontal moving block 17 presses against the connecting arm 13 of the profile 11, completing the processing of the connecting arm 13.

[0080] The downward driving component drives the upper mold assembly 26 to move upward. First, under the action of the third spring 35, the stripper plate 33 and stripper plate 34 are stationary. The upper mold base 30, upper pad plate 31, and upper clamping plate 32 move upward, and drive the pressure rod 23 to move upward. Under the action of the first spring 48, the vertical moving arm and the first push rod 47 move upward. At this time, the horizontal moving block 17 moves away from the profile 11.

[0081] Finally, the upper mold base 30, upper pad 31, upper clamping plate 32, third spring 35, stripping back plate 33 and stripping plate 34 move upward synchronously. At this time, the second spring 51 drives the second ejector rod 50 to eject the processed profile 11.

[0082] Additionally, the attached figure shows a U-shaped profile 11, which cannot be used to limit the processing objects of this solution.

[0083] The bent portion at the upper end of the connecting arm 13 of the profile 11 in the attached diagram is made by other pre-processing steps.

[0084] This solution only addresses how to precisely adjust the angle between the connecting arm 13 and the planar arm 12. Therefore, other features of the profile 11, which are irrelevant to the problem solved in this solution, will not be elaborated upon in this application.

[0085] Among them, punch press is existing technology, and its structure and working principle will not be described in detail in this article.

[0086] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A stamping mechanism for processing a U-shaped profile (11), wherein the U-shaped profile (11) has planar arms (12) and connecting arms (13), the connecting arms (13) being located at both ends of the planar arms (12), characterized in that, The stamping mechanism includes: A support assembly, the upper end of which is used to support the planar arm (12); The lower pressure seat (14) has two pressure blocks (15) rotatably mounted on its lower end. The two pressure blocks (15) are used to be inserted between the two connecting arms (13). The lower ends of the two pressure blocks (15) are respectively provided with guide structures. The planar arm (12) is used to squeeze the guide structures to make the two pressure blocks (15) rotate away. Side-pressure assembly, two side-pressure assemblies are respectively disposed on both sides of the support assembly, each side-pressure assembly is provided with a horizontal moving block (17), the horizontal moving block (17) is used to press the connecting arm (13).

2. The stamping mechanism according to claim 1, characterized in that, The horizontal moving block (17) has a beveled surface (18) on the side facing the connecting arm (13).

3. The stamping mechanism according to claim 1 or 2, characterized in that, A pressing drive is provided above the pressing seat (14), and the pressing seat (14) and the pressing drive are connected by transmission.

4. The stamping mechanism according to claim 3, characterized in that, Each of the side pressure components also includes two transmission mechanisms, each transmission mechanism including a vertical moving block (19), with a first elastic support (20) provided below the vertical moving block (19); a first inclined block (21) is provided on the vertical moving block (19), and a second inclined block (22) is provided on the horizontal moving block (17). The first inclined block (21) is in contact with the second inclined block (22) to drive the second inclined block (22) to move in the horizontal direction.

5. The stamping mechanism according to claim 4, characterized in that, It also includes a pressure rod (23), which is located above the vertical moving block (19). The downward driving member drives the vertical moving block (19) to move through the pressure rod (23).

6. The stamping mechanism according to claim 5, characterized in that, The support assembly includes a support column (24) and a second elastic support member (25). The upper end of the support column (24) is used to support the planar arm (12) of the profile (11), and the lower end of the support column (24) is mounted on the second elastic support member (25).

7. A mold, characterized in that, It includes a stamping mechanism as described in any one of claims 3 to 6.

8. The mold according to claim 7, characterized in that, include: Upper mold assembly (26) and lower mold assembly (27), the upper mold assembly (26) is used to install the lower pressure seat (14) and the pressure rod (23), the upper mold assembly (26) is connected to the lower pressure drive; the lower mold assembly (27) is used to install the side pressure assembly and the support assembly.

9. The mold according to claim 7, characterized in that, The downward driving component is a pneumatic cylinder or a hydraulic cylinder.

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