Stamping mechanism and die thereof

Abstract

The invention 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] The invention relates to the field of stamping equipment, and in particular to a stamping mechanism and a die thereof. Background Art

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

[0003] The problem with the prior art is that when the two connecting arms 13 are tilted, the lowermost planar arm 12 is easily deformed, thereby affecting the accuracy of the product. The prior art cannot solve this problem.

[0004] Therefore, the technical problem to be solved by the present application is: how to avoid deformation of the lower plane arm when the connecting arm of the U-shaped structural profile is extruded. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a stamping mechanism and a die thereof. In this scheme, two pressing blocks that can rotate away from each other are arranged. When the two pressing blocks rotate away from each other, the lower ends of the two pressing blocks press against the lower end of the connecting arm, and a gap is left between the upper ends of the two pressing blocks and the connecting arm. The side pressure assembly squeezes the connecting arm so that the connecting arm fits with the pressing block, thereby achieving the bending of the connecting arm and effectively preventing the deformation of the bottom plane arm.

[0006] Specifically, the present invention proposes a stamping mechanism for processing a U-shaped profile, wherein the U-shaped profile has a plane arm and a connecting arm, and the connecting arm is located at both ends of the plane arm. The stamping mechanism includes:

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

[0008] A lower pressing seat, wherein two pressing blocks are rotatably mounted at the lower end of the lower pressing seat, and the two pressing blocks are used to be inserted between the two connecting arms; the lower ends of the two pressing blocks are respectively provided with guide structures, and the planar arms are used to rotate the two pressing blocks away from each other by squeezing the guide structures;

[0009] Side pressure assembly, two side pressure assemblies are respectively arranged on both sides of the support assembly, each side pressure assembly is respectively provided with a horizontal moving block, and the horizontal moving block is used for squeezing the connecting arm.

[0010] Preferably, a sloped portion is provided on a side of the horizontal moving block facing the connecting arm.

[0011] Preferably, a pressing driving member is provided above the pressing seat, and the pressing seat and the pressing driving member are transmission-connected.

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

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

[0014] Preferably, it further comprises a pressure rod, wherein the pressure rod is located above the vertical moving block, and the downward pressing driving member drives the vertical moving block to move via the pressure rod.

[0015] Preferably, the support assembly comprises 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] At the same time, the present application proposes a mold including 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 the lower pressure seat and the pressure rod, and the upper mold assembly is connected to the lower pressure driving member; the lower mold assembly is used to install the side pressure assembly and the support assembly.

[0018] Furthermore, the downward pressing driving member is a cylinder or a hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 It is the main view of the profile before processing;

[0021] Figure 2 It is the main view of the profile after processing;

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

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

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

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

[0026] Figure 7 is a schematic diagram of the movement direction when the vertical moving block and the horizontal moving block are separated in Example 1;

[0027] Figure 8 is a schematic diagram of the movement direction of the vertical moving block and the horizontal moving block when they are close to each other in Example 1;

[0028] Fig. 9 is a schematic structural diagram of the lower pressing seat in Example 1;

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

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

[0031] Fig.12 is a front view of another one of the two pressing blocks in Example 1;

[0032] Fig.13 is a side view of another one of the two pressing blocks in Example 1;

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

[0034] Fig.15 yes Fig.14 A schematic diagram of the local enlarged structure at B in the middle;

[0035] Fig.16 It is a schematic diagram of the positional relationship between the first accommodating opening and the second accommodating opening in Example 2.

[0036] The reference numerals in the accompanying drawings are as follows:

[0037] 11-profile; 12-plane arm; 13-connecting arm; 14-lower press seat; 15-pressing block; 16-guide slope; 17-horizontal moving block; 18-slope portion; 19-vertical moving block; 20-first elastic support member; 21-first inclined block portion; 22-second inclined block portion; 23-pressing rod; 24-supporting column; 25-second elastic support member; 26-upper die assembly; 27-lower die assembly; 28-first lug; 29-second lug; 30-upper die seat; 31-upper pad; 32-upper clamp; 33-backing Plate; 34-stripping plate; 35-third spring; 36-first accommodating opening; 37-through hole; 38-lower template; 39-lower pad; 40-lower mold base; 41-pad; 42-second accommodating opening; 43-first mounting hole; 44-second mounting hole; 45-first guide hole; 46-second guide hole; 47-first push rod; 48-first spring; 49-first locking block; 50-second push rod; 51-second spring; 52-second locking block; 53-first inclined plug interface; 54-second inclined plug interface. DETAILED DESCRIPTION

[0038] The technical solution of the present application is further described below in conjunction with specific embodiments, but the present 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 plane arm 12 and a connecting arm 13, the connecting arm 13 is located at both ends of the plane arm 12, and the connecting arm 13 is arranged in a vertical direction, and the stamping mechanism includes:

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

[0042] like Figure 3 , Figure 4 and Fig. 9 As shown, a lower pressing seat 14 is rotatably mounted with two pressing blocks 15 at the lower end of the lower pressing seat 14, and the two pressing blocks 15 are used to be inserted between the two connecting arms 13; the lower ends of the two pressing blocks 15 are respectively provided with a guiding structure, which is a guiding inclined surface 16, and the planar arm 12 is used to rotate the two pressing blocks 15 away by squeezing the guiding inclined surface 16;

[0043] Side pressure assemblies, two of which are respectively arranged on both sides of the support assembly, each of which is respectively provided with a horizontal moving block 17 , and the horizontal moving block 17 is used to squeeze the connecting arm 13 .

[0044] The technical effect of this solution is that by providing two pressing blocks 15 that can rotate away from each other, when the two pressing blocks 15 rotate away from each other, the lower ends of the two pressing blocks 15 press against the lower end of the connecting arm 13, and a gap is left between the upper ends of the two pressing blocks 15 and the connecting arm 13. The side pressure assembly presses the connecting arm 13 so that the connecting arm 13 fits the pressing blocks 15, thereby achieving the bending of the connecting arm 13, and at the same time, effectively preventing the deformation of the bottom plane arm 12.

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

[0046] Furthermore, the upper ends of the guiding inclined surfaces 16 of the two pressing blocks 15 are close to each other, and the lower ends of the guiding inclined surfaces 16 of the two pressing blocks 15 are far away from each other. The guiding inclined surfaces 16 of the two pressing blocks 15 form an inverted V-shaped structure.

[0047] The advantages of this solution are:

[0048] 1. The two pressing blocks 15 are installed by rotating installation. When the pressing blocks 15 are lowered, the guiding bevels 16 at the bottom of the two pressing blocks 15 are squeezed with the plane arm 12, and the guiding bevels 16 move until the guiding bevels 16 become a plane, and then the pressing blocks 15 stop rotating. At this time, the guiding bevels 16 and the plane arm 12 are in surface contact. At the same time, the side of the pressing block 15 facing the connecting arm 13 changes from the initial vertical surface to an inclined surface, thereby playing the role of internal support. When the side pressure assembly squeezes the connecting arm 13, the connecting arm 13 fits with the side of the pressing block 15, and the connecting arm 13 is precisely deformed. Therefore, the connecting arm 13 in this solution has the advantage of high processing accuracy.

[0049] Second, this solution is also convenient for removing materials. When the two pressing blocks 15 move upward, the guiding slope 16 of the pressing block 15 is automatically separated from the plane arm 12. At the same time, the pressing blocks 15 are close to each other under the action of gravity. At this time, the pressing blocks 15 only need to move upward to automatically remove the materials from the profile 11, which has the advantage of high processing efficiency.

[0050] Further, such as Fig.10 and Fig.11 As shown, one of the two pressing blocks 15 is provided with two first lugs 28, and the first lug 28 is provided with a rotatable mounting hole arranged on the mounting shaft at the lower end of the lower pressing seat 14;

[0051] like Fig.12 and Fig.13 As shown, the other pressing block 15 is provided with two second lugs 29 , and the second lugs 29 are provided with rotation mounting holes.

[0052] A space is left between the two first lugs 28, and the space is used to accommodate the second lug 29, so that the two pressing 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 lower pressing seat 14 through their respective rotation mounting holes.

[0054] As an implementation of this embodiment, the horizontal moving block 17 is provided with an inclined surface 18 on one side facing the connecting arm 13. During processing, the connecting arm 13 fits the inclined surface 18, so the inclined surface 18 can further improve the bending accuracy of the connecting arm 13.

[0055] As an implementation mode of this embodiment, a pressing driving member is provided above the pressing seat 14 , and a transmission connection is formed between the pressing seat 14 and the pressing driving member.

[0056] As an implementation mode of this embodiment, each of the side pressure assemblies further includes two transmission mechanisms, each transmission mechanism includes a vertical moving block 19, and a first elastic support member 20 is 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 portion 21 is in surface contact with the second inclined block portion 22 to drive the second inclined block portion 22 to move in a horizontal direction.

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

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

[0060] As an implementation mode of this embodiment, it further includes a pressing rod 23 , and the pressing rod 23 is located above the vertical moving block 19 . The pressing driving member drives the vertical moving block 19 to move through the pressing rod 23 .

[0061] As an implementation of this embodiment, 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 installed on the second elastic support member 25.

[0062] Example 2

[0063] like Figures 1 to 16 , the present application proposes a mold, which includes the stamping mechanism in Example 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 driving member; the lower mold assembly 27 is used to install the side pressure assembly and the support assembly.

[0065] Furthermore, an installation space is provided in the upper mold assembly 26 for fixing the pressing rod 23 and the lower pressing seat 14. A side pressing assembly and a supporting assembly are installed in the lower mold assembly 27.

[0066] Furthermore, the upper die assembly 26 includes an upper die seat 30, an upper pad 31, an upper clamping plate 32, a backing plate 33 and a stripping plate 34 from top to bottom. The upper die seat 30, the upper pad 31 and the upper clamping plate 32 are fixed to each other, and the backing plate 33 and the stripping plate 34 are fixed to each other. The backing plate 33 is connected to the upper die seat 30 through a third spring 35. At this time, the upper pad 31 and the upper clamping plate 32 are provided with an escape opening for installing the third spring 35. When the upper die assembly 26 moves upward, under the action of the third spring 35, the lower press seat 14 continues to press the plane arm 12, and when the pressure rod 23 moves upward, the side pressure assembly can be separated from the profile 11 first. Then the lower press seat 14 moves upward following the stripping plate 34, and the pressing block 15 is separated from the profile 11.

[0067] Furthermore, a first receiving opening 36 is provided in the stripping plate 34, a through hole 37 is provided between the stripping back plate 33 and the upper clamping plate 32, the through hole 37 is connected to the first receiving opening 36, the pressure rod 23 is passed through the through hole 37, the upper end of the pressure rod 23 is fixed to the lower surface of the upper pad 31, and the lower end of the pressure rod 23 passes through the first receiving opening 36 to squeeze the vertical moving block 19. Among them, the number of through holes 37 and the number of pressure rods 23 are two respectively. Among them, the installation space includes the first receiving opening 36 and the through hole 37. The lower press seat 14 is fixed in the first receiving opening 36

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

[0069] Furthermore, the lower mold plate 38 is provided with a second accommodating opening 42, which is connected to the first accommodating 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 accommodating 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] Further, the support column 24, the vertical moving block 19 and the horizontal moving block 17 are respectively arranged in the second mounting hole 44. The horizontal moving block 17 and the vertical moving block 19 are respectively arranged 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 through the first locking block 49, and the first push rod 47 can be slidably installed in the first guide hole 45 along 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 the number of the first elastic support members 20 is two, the number of the first guide hole 45 and the number of the first mounting hole 43 are also two.

[0072] The first mounting hole 43 is a threaded hole. Furthermore, the first locking block 49 is a stop screw, and the stop screw 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 can be slidably installed in the second guide hole 46 along 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 installed in the internal thread of the second mounting hole 44 .

[0075] Furthermore, the downward pressing driving member is a cylinder or a hydraulic cylinder.

[0076] Furthermore, the mold in this solution is arranged in a punch press, and the downward pressing drive member of the punch press is connected to the upper mold assembly 26 .

[0077] The scheme works as follows:

[0078] The U-shaped profile 11 is placed on the support column 24, and the downward pressing drive of the punch press is operated to drive the upper die assembly 26 to move downward. First, the pressing block 15 on the lower pressing seat 14 contacts and squeezes the plane arm 12, and the two pressing blocks 15 are separated from each other and are in a tilted state. At this time, the stripping back plate 33 and the stripping 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 die seat 30, the upper pad 31, and the upper clamping plate 32 continue to move downward, and the pressure rod 23 presses the vertical moving block 19 downward. At this time, the first push rod 47 moves downward, and the first spring 48 is compressed. At the same time, the horizontal moving block 17 is squeezed toward the connecting arm 13 of the profile 11, and the inclined portion 18 of the horizontal moving block 17 presses the connecting arm 13 of the profile 11 to complete the processing of the connecting arm 13.

[0080] The downward pressure driving member drives the upper mold assembly 26 to move upward. First, under the action of the third spring 35, the stripping plate 33 and the stripping plate 34 are stationary, the upper mold base 30, the upper pad 31, and the 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 is away from the profile 11.

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

[0082] In addition, a U-shaped profile 11 is shown in the drawings, and this shape cannot be used to limit the processing object of this solution.

[0083] The bent portion at the upper end of the connecting arm 13 of the profile 11 in the drawings is made in other pre-processes.

[0084] This solution only involves the problem of how to accurately adjust the angle between the connecting arm 13 and the plane arm 12. Therefore, this application does not elaborate on other features of the profile 11 that are irrelevant to the problem solved by this solution.

[0085] Among them, the punching machine is a prior art, and the structure and working principle of the punching machine will not be described in detail in this article.

[0086] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, all of which fall within the protection scope of the present invention.

Claims

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

2. The punching mechanism according to claim 1, characterized in that: The horizontal moving block (17) is provided with an inclined portion (18) on one side facing the connecting arm (13).

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

4. The punching mechanism according to claim 3, characterized in that: Each of the side pressure assemblies further comprises two transmission mechanisms, each transmission mechanism comprising a vertical moving block (19), a first elastic support member (20) being provided below the vertical moving block (19); a first inclined block portion (21) being provided on the vertical moving block (19), and a second inclined block portion (22) being provided on the horizontal moving block (17); The first inclined block portion (21) is in surface contact with the second inclined block portion (22) and is used to drive the second inclined block portion (22) to move in a horizontal direction.

5. The punching mechanism according to claim 4, characterized in that: It also includes a pressing rod (23), wherein the pressing rod (23) is located above the vertical moving block (19), and the pressing driving member drives the vertical moving block (19) to move via the pressing rod (23).

6. The punching mechanism according to claim 5, characterized in that: The support assembly comprises a support column (24) and a second elastic support member (25), wherein 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 comprises the punching mechanism as claimed in any one of claims 1 to 6.

8. The mold according to claim 7, characterized in that: The invention comprises: an upper die assembly (26) and a lower die assembly (27), wherein the upper die assembly (26) is used to install a lower pressure seat (14) and a pressure rod (23), and the upper die assembly (26) is connected to a lower pressure driving member; and the lower die assembly (27) is used to install a side pressure assembly and a support assembly.

9. The mold according to claim 7, characterized in that: The pressing driving member is a cylinder or a hydraulic cylinder.

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