Improved forming die capable of preventing part from cracking

Abstract

The utility model relates to the technical field of forming dies, and discloses an improved part cracking prevention forming die which comprises an upper clamping plate, a forming punch is fixedly connected to the front face of the upper clamping plate, and a trimming punch located above the forming punch is further fixedly connected to the interior of the upper clamping plate. A stripper plate located on the outer side of the forming punch and the outer side of the trimming punch is arranged on the outer side of the upper clamping plate. The improved forming die capable of preventing the part from cracking has the advantages of low improvement cost, no need of adding working procedures and the like, and solves the problems that a set of standard design mode is basically formed by an existing automobile seat cross beam die, material characteristics fluctuate on the premise that the strength requirement is high, and the product quality is influenced. The problems that flanging and cracking of parts occur in the later production process according to a standard design mode, cracking cannot be well solved on site, if the cracking needs to be thoroughly solved, mold working steps need to be increased or a mold needs to be opened again, and the investment cost is huge are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a forming die technical field, concretely to an improved forming die of preventing part cracking. BACKGROUND

[0002] Mold, under the action of external force, the blank becomes the tool of specific shape and size. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting, and engineering plastics, rubber, ceramic and other product pressure or injection molding forming processing. The mold has a specific profile or internal cavity shape, and the profile shape with a blade edge can make the blank separate according to the profile line shape (blanking). The internal cavity shape can make the blank obtain the corresponding three-dimensional shape. The mold generally includes a movable die and a fixed die (or a punch and a die), which can be separated and combined. When separated, the product is taken out, and when combined, the blank is injected into the mold cavity to form. The mold is a precision tool with complex shape, which bears the expansion force of the blank, and has high requirements for structural strength, rigidity, surface hardness, surface roughness and machining accuracy.

[0003] Now the automobile seat beam mold has basically formed a standard design mode, so under the premise of higher strength requirement, the material characteristics fluctuate (produce different batches), and according to the standard design mode, the flanging cracking of parts will occur in the later production process. There is no good way to solve the cracking on site, and if you want to completely solve it, you need to increase the mold process or re-open the mold, which requires huge investment cost, so an improved forming die for preventing part cracking is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] (I) technical problems solved

[0005] In view of the defects of prior art, the utility model provides an improved forming die for preventing part cracking, which has the advantages of low improvement cost, no need to increase process, etc. The problem of the automobile seat beam mold has basically formed a standard design mode, so under the premise of higher strength requirement, the material characteristics fluctuate, and according to the standard design mode, the flanging cracking of parts will occur in the later production process. There is no good way to solve the cracking on site, and if you want to completely solve it, you need to increase the mold process or re-open the mold, which requires huge investment cost.

[0006] (II) technical scheme

[0007] The utility model discloses a technical scheme that solves the above technical problems is as follows: An improved forming die for preventing part cracking, comprising an upper clamping plate, a forming punch is fixedly connected to the front of the upper clamping plate, a trimming punch is also fixedly connected to the inside of the upper clamping plate and located above the forming punch, a stripper plate is arranged on the outside of the upper clamping plate and located on the outside of the forming punch and the trimming punch, the stripper plate is slidably connected to the forming punch and the trimming punch, a female die that is matched with the forming punch and the trimming punch is arranged on the front of the stripper plate, and a lower pad plate is fixedly connected to the bottom of the forming punch and the trimming punch.

[0008] The forming punch is formed by assembling and splicing a new punch and an original punch.

[0009] The utility model discloses the beneficial effect is: for the finished product die that has designed to complete, the transformation action is smaller, and the cost is lower, and the risk is controllable, and the process structure is simple, and it is not necessary to increase the additional work step die, and it is not necessary to make the new die again to solve the part quality problem, through the local process change on the original die, reach the problem of solving part cracking, reduce the part scrapping, reduce the mold reconstruction investment cost.

[0010] The improved forming die for preventing part cracking has the advantages of low improvement cost and no need to increase the process.

[0011] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0012] Further, assembly grooves matched with the stamping equipment are formed in the outside of the upper clamping plate, and a plurality of forming holes are formed in the front of the upper clamping plate.

[0013] The beneficial effect of the above further scheme is that the assembly grooves facilitate the connection of the upper clamping plate with the automatic stamping equipment in the workshop and the use of multiple groups in parallel.

[0014] Further, the stripper plate is used for separating the stamping-formed automobile seat cross beam from the forming punch and the trimming punch.

[0015] The beneficial effect of the above further scheme is that the stripper plate facilitates the separation of the automobile seat cross beam template, avoiding the adhesion of the automobile seat cross beam template to the forming punch and the trimming punch and causing secondary stamping.

[0016] Further, the female die is used for appearance extrusion forming of the automobile seat cross beam, and a plurality of forming grooves are formed in the front of the female die.

[0017] The beneficial effect of the above further scheme is that the forming grooves facilitate the one-time forming of the automobile seat cross beam in stamping.

[0018] Further, the lower base plate trimming reduces the material sheet 3.1mm, which is used for cutting the automobile seat beam template.

[0019] The beneficial effect of the above further scheme is that the crack of the original trimming process is caused by the fluctuation of the trimming material sheet, and the new process can realize that the material fluctuation no longer cracks.

[0020] Further, the forming punch is used for punching the automobile seat beam template into a shaped mounting hole, and the trimming punch is used for trimming the hole of the automobile seat beam template in the second step.

[0021] The beneficial effect of the above further scheme is that the trimming of the trimming punch increases the overall trimming size of the material sheet. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a lower base plate and concave die connecting structure side view of the utility model;

[0024] Figure 3 It is a upper clamp plate and forming punch connecting structure rear view of the utility model;

[0025] Figure 4 It is a upper clamp plate and forming punch connecting structure rear view of the utility model.

[0026] In the figure: 1, upper clamp plate; 2, forming punch; 3, stripper plate; 4, concave die; 5, lower base plate; 6, trimming punch. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] In the embodiments, the upper clamp plate is connected with the forming punch, and the lower base plate is connected with the concave die. Figures 1-4The utility model provides a improved type forming die of preventing part from cracking, the utility model discloses a upper clamp plate 1, the positive fixedly connected with forming punch 2 of upper clamp plate 1, the inside fixedly connected with trimming punch 6 of forming punch 2 top of upper clamp plate 1, the outside of upper clamp plate 1 is provided with the stripper plate 3 of forming punch 2 and trimming punch 6 outside, the stripper plate 3 all are with forming punch 2 and trimming punch 6 sliding connection, the positive of stripper plate 3 is provided with the female die 4 of forming punch 2 and trimming punch 6 adaptation, the bottom of forming punch 2 and trimming punch 6 all are fixedly connected with lower bolster plate 5,

[0029] Forming punch 2 is new punch and original punch assembly splicing forming,

[0030] The outside of upper clamp plate 1 is provided with the assembly slot hole of stamping equipment adaptation, and the positive of upper clamp plate 1 is provided with multiple forming hole positions,

[0031] The assembly slot hole is convenient for the connection of upper clamp plate 1 and workshop automatic stamping equipment, and multiple groups are used in parallel,

[0032] The stripper plate 3 is used for separating the automobile seat crossbeam of stamping forming and forming punch 2 and trimming punch 6,

[0033] The stripper plate 3 is convenient for separating automobile seat crossbeam template, avoids the adhesion of automobile seat crossbeam template and forming punch 2 and trimming punch 6 to cause secondary stamping,

[0034] The female die 4 is used for the appearance extrusion forming of automobile seat crossbeam, and the positive of female die 4 is provided with multiple forming hole slots,

[0035] The forming empty slot is convenient for the one-time forming of automobile seat crossbeam in stamping,

[0036] The trimming of lower bolster plate 5 reduces the material sheet 3.1mm, and the lower bolster plate 5 is used for cutting automobile seat crossbeam template,

[0037] If the trimming material sheet fluctuation of original trimming process cracks, the new technology can realize that material fluctuation does not crack again,

[0038] Forming punch 2 is used for punching out the forming installation hole position of automobile seat crossbeam template, and trimming punch 6 is used for trimming the hole position of the automobile seat crossbeam template of stamping forming in the second step process,

[0039] The trimming of trimming punch 6 increases the trimming line of part and improves the overall size of material sheet.

[0040] Working principle:

[0041] First, trimming adjustment is carried out to lower bolster plate 5, so that lower bolster plate 5 reduces material sheet 3.1mm, and material fluctuation does not crack again,

[0042] Second step: the new punch and the original punch are assembled to form a forming punch 2, the shaping and forming area is enlarged, the forming degree of the punching is improved, and the size of the material sheet forming part is improved;

[0043] Third step: the trimming punch 6 process is changed, the original trimming process is changed, and the cracking problem is completely solved.

[0044] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An improved forming die for preventing cracking of a part, comprising an upper clamp plate (1), characterized in that: The front surface of the upper clamping plate (1) is fixedly connected with a forming punch (2), the inside of the upper clamping plate (1) is also fixedly connected with a trimming punch (6) located above the forming punch (2), the outer side of the upper clamping plate (1) is provided with a stripper plate (3) located outside the forming punch (2) and the trimming punch (6), the stripper plate (3) is in sliding connection with the forming punch (2) and the trimming punch (6), the front surface of the stripper plate (3) is provided with a concave die (4) matched with the forming punch (2) and the trimming punch (6), and the bottom of the forming punch (2) and the trimming punch (6) is fixedly connected with a lower backing plate (5). The forming punch (2) is formed by assembling and splicing a new punch and an original punch.

2. The improved forming die for preventing cracking of a part according to claim 1, wherein: A plurality of assembly groove holes matched with the stamping equipment are formed in the outer side of the upper clamping plate (1), and a plurality of forming hole positions are formed in the front surface of the upper clamping plate (1).

3. The improved forming die for preventing cracking of a part as claimed in claim 1, wherein: The stripper plate (3) is used for separating the stamping-formed automobile seat cross beam from the forming punch (2) and the trimming punch (6).

4. The improved forming die for preventing cracking of a part according to claim 1, wherein: The concave die (4) is used for appearance extrusion forming of the automobile seat cross beam, and a plurality of forming grooves are formed in the front surface of the concave die (4).

5. The improved forming die for preventing cracking of a part as claimed in claim 1, wherein: The trimming of the lower backing plate (5) reduces the material sheet by 3.1mm, and the lower backing plate (5) is used for cutting the automobile seat cross beam template.

6. The improved forming die for preventing cracking of a part as set forth in claim 1, wherein: The forming punch (2) is used for punching out the forming installation hole position of the automobile seat cross beam template, and the trimming punch (6) is used for trimming the hole position of the stamping-formed automobile seat cross beam template in the second step.

Images