阅读说明：本技术 拉延模具和拉延设备 (Drawing die and drawing equipment ) 是由 刘洋 邹平 朱平 魏龙 吕陆 李立经 于 2021-08-11 设计创作，主要内容包括：本申请实施例公开了一种拉延模具和拉延设备。拉延模具包括上模、连接板、压边圈和支撑杆。连接板能够靠近或远离上模。压边圈与连接板靠近上模的一侧连接,压边圈用于挤压坯料。支撑杆与连接板远离上模的一侧连接。本申请实施例通过设置支撑杆和连接板,降低了顶杆的设置位置对拉延模具的影响,提高了拉延模具的适用性,从而提高生产效率,降低生产成本。并且,通过设置连接板,还能够提高压边圈受力的均匀性,从而提高压边圈对于坯料的挤压效果,进而确保了零件的加工效果。此外,通过设置支撑杆,还能够缩短顶杆向靠近连接板方向的移动行程,避免顶与拉延模具的其余位置接触,影响坯料的冲压,进一步提高了拉延模具的使用可靠性。(The embodiment of the application discloses a drawing die and drawing equipment. The drawing die comprises an upper die, a connecting plate, a blank holder and a supporting rod. The connecting plate can be close to or far away from the upper die. The blank holder is connected with one side of the connecting plate close to the upper die and used for extruding blanks. The support rod is connected with one side of the connecting plate far away from the upper die. According to the embodiment of the application, the supporting rod and the connecting plate are arranged, the influence of the arrangement position of the ejector rod on the drawing die is reduced, and the applicability of the drawing die is improved, so that the production efficiency is improved, and the production cost is reduced. And moreover, the connecting plates are arranged, so that the stress uniformity of the blank holder can be improved, the extrusion effect of the blank holder on the blank is improved, and the processing effect of parts is ensured. In addition, through setting up the bracing piece, can also shorten the ejector pin to the travel that is close to the connecting plate direction, avoid the top to contact with other positions of drawing die, influence the punching press of blank, further improved drawing die's use reliability.)

1. A drawing die, comprising:

an upper die;

a connecting plate capable of approaching or departing from the upper die;

the blank holder is connected with one side, close to the upper die, of the connecting plate and used for extruding a blank;

the supporting rod is connected with one side, far away from the upper die, of the connecting plate.

2. The drawing die of claim 1, wherein an edge of the web coincides with an edge of the blankholder; or

The edge of the connecting plate exceeds the edge of the blank holder.

3. The drawing die of claim 1, wherein the number of support bars is multiple, and a distance between at least one of the support bars in the multiple support bars and the edge of the connecting plate is greater than or equal to a distance threshold.

4. The drawing die of claim 3, wherein a plurality of the support bars are removably connected to the web.

5. The draw die of claim 1, wherein the blankholder comprises a connection portion through which the blankholder is connected with the connection plate.

6. The drawing die of claim 5, wherein the connecting portion is removably connected to the connecting plate.

7. The drawing die as claimed in claim 1, further comprising a lower die, wherein the connecting plate includes a connecting hole, and the lower die passes through the connecting hole and is disposed opposite to the upper die;

one of the upper die and the lower die is a male die, and the other one is a female die.

8. The drawing die of claim 6, further comprising:

the upper die base is used for bearing the upper die;

the lower die base is used for bearing the lower die and the connecting plate;

the upper die holder can be close to or far away from the lower die holder.

9. The drawing die of claim 8, wherein the lower die holder includes a through hole, and the support rod is disposed within the through hole.

10. A drawing apparatus, comprising:

the drawing die of any one of claims 1 to 9;

the press machine comprises a push rod, and the push rod can be close to or far away from the supporting rod.

Technical Field

The embodiment of the application relates to the technical field of drawing, in particular to a drawing die and drawing equipment.

Background

When a blank is machined, the blank is usually press-formed by the cooperation of the upper die, the lower die and the blank holder. The blank holder is used for extruding the blank, and wrinkling of the blank in the stamping process is avoided.

In the related art, a force is generally applied directly to the blank holder by a ram of the press so that the blank holder can extrude the blank. However, when the position of the ejector rod is not matched with the drawing die, the ejector rod cannot apply acting force to the blank holder, and the applicability of the drawing die is reduced.

Disclosure of Invention

In order to solve at least one of the above technical problems, embodiments of the present application provide a drawing die and a drawing apparatus.

In a first aspect, an embodiment of the present application provides a drawing die, including an upper die; the connecting plate can be close to or far away from the upper die; the blank holder is connected with one side of the connecting plate, which is close to the upper die, and is used for extruding a blank; the support rod is connected with one side of the connecting plate far away from the upper die.

In a possible embodiment, the edge of the connecting plate coincides with the edge of the blankholder; or the edge of the connecting plate exceeds the edge of the blank holder.

In a possible embodiment, the number of the support bars is multiple, and a distance between at least one support bar of the multiple support bars and the edge of the connecting plate is greater than or equal to a distance threshold value.

In one possible embodiment, a plurality of support rods are detachably connected to the connecting plate.

In one possible embodiment, the blank holder comprises a connection portion, by means of which the blank holder is connected to the connection plate.

In a possible embodiment, the connecting part is detachably connected to the connecting plate.

In one possible embodiment, the drawing die further comprises a lower die, the connecting plate comprises a connecting hole, and the lower die penetrates through the connecting hole and is arranged opposite to the upper die; one of the upper die and the lower die is a male die, and the other is a female die.

In one possible embodiment, the drawing die further comprises an upper die holder for carrying an upper die; the lower die base is used for bearing the lower die and the connecting plate; the upper die base can be close to or far away from the lower die base.

In a possible embodiment, the lower die holder comprises a through hole, and the support rod is arranged in the through hole.

In a second aspect, embodiments of the present application provide a drawing apparatus comprising the drawing die of the first aspect described above; the press machine comprises an ejector rod, and the ejector rod can be close to or far away from the supporting rod.

The embodiment of the application has the following beneficial effects:

this application embodiment is through setting up bracing piece and connecting plate to make the ejector pin can transmit to the blank holder through the connecting plate to the effort that the bracing piece was applyed, avoid because the setting position of ejector pin and drawing die are not looks adaptation, the effort that leads to the ejector pin can't transmit for the blank holder, this application embodiment is through setting up the connecting plate, the influence of the setting position of ejector pin to drawing die has been reduced, the suitability of drawing die has been improved, thereby improve production efficiency, the position that need not to adjust press or ejector pin simultaneously, reduction in production cost.

And moreover, the connecting plates are arranged, so that the stress uniformity of the blank holder can be improved, the extrusion effect of the blank holder on the blank is improved, and the processing effect of parts is ensured.

In addition, through setting up the bracing piece, can also shorten the ejector pin to the travel that is close to the connecting plate direction, avoid the top to contact with other positions of drawing die, influence the punching press of blank, further improved drawing die's use reliability.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is one of the drawing dies of one embodiment provided herein;

FIG. 2 is an enlarged view of a portion of the area A in FIG. 1;

FIG. 3 is a schematic illustration of a connection plate according to an embodiment provided herein;

fig. 4 is a second schematic structural view of a drawing die according to an embodiment of the present disclosure.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

100: drawing die, 110: an upper die, 112: upper die holder, 120: connection plate, 122: connection hole, 130: blank holder, 132: connecting part, 140: support rod, 150: lower die, 152: lower die holder, 154: through hole, 210: and a push rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In a first aspect, as shown in fig. 1, embodiments of the present application provide a draw die 100. The drawing die 100 includes an upper die 110, a connecting plate 120, a blank holder 130, and a support bar 140. The connecting plate 120 can be close to or distant from the upper die 110. The blank holder 130 is connected to a side of the connecting plate 120 adjacent to the upper mold 110, and the blank holder 130 is used for extruding the blank. The support bar 140 is connected to a side of the connection plate 120 away from the upper mold 110.

It will be appreciated that the drawing die 100 is used to draw a blank so that the blank can be press formed into a part. The drawing die 100 includes an upper die 110, and in some examples, the upper die 110 may be a male die or a female die. In some examples, the upper mold 110 may be a cylindrical mold, a conical mold, an irregular mold, or the like, which meets the processing requirements of parts with different shapes.

The connection plate 120 can be close to or far from the upper die 110, and specifically, the connection plate 120 is a flat plate-shaped structure. The blank holder 130 is connected with one side of the connecting plate 120 close to the upper die 110, and when the connecting plate 120 is close to the blank, the blank holder 130 can extrude the blank, so that the blank is prevented from wrinkling in the stamping process.

In some examples, the face of the blankholder 130 that contacts the blank is planar, improving the squeezing effect of the blankholder 130 on the blank.

A support bar 140 is connected to a side of the connecting plate 120 remote from the upper die 110. it will be appreciated that the support bar 140 is used to support the connecting plate 120 and the blankholder 130. Specifically, during the drawing process, a force may be applied to the support bar 140 through the ejector pins 210 of the press, and the connecting plate 120 and the blankholder 130 are forced to move upward, close to the upper die 110, so that the blankholder 130 can extrude the blank. When the punching is completed, the acting force of the ejector rod 210 disappears, and the connecting plate 120 and the blank holder 130 are far away from the upper die 110 under the action of gravity, so that the blank is convenient to replace.

In some examples, the support rod 140 and the connection plate 120 may be fixedly connected, so as to improve the support stability of the support rod 140 for the connection plate 120. In some examples, the support bar 140 and the connecting plate 120 may also be detachably connected to improve the flexibility of the drawing die 100.

Through the arrangement of the supporting rod 140 and the connecting plate 120, acting force applied to the supporting rod 140 by the ejector rod 210 can be transmitted to the blank holder 130 through the connecting plate 120, and the phenomenon that the acting force of the ejector rod 210 cannot be transmitted to the blank holder 130 due to the fact that the arrangement position of the ejector rod 140 is not matched with the drawing die 100 is avoided. According to the embodiment of the application, the connecting plate 120 is arranged, so that the influence of the arrangement position of the ejector rod 210 on the drawing die 100 is reduced, the applicability of the drawing die 100 is improved, the production efficiency is improved, the position of a press or the ejector rod is not required to be adjusted, and the production cost is reduced. In addition, the connecting plate 140 can improve the stress uniformity of the blank holder 130, thereby improving the extrusion effect of the blank holder 130 on the blank and further ensuring the processing effect of the part.

In addition, by arranging the supporting rod 140, the moving stroke of the ejector rod 210 towards the direction close to the connecting plate 120 can be shortened, so that the situation that the ejector rod 210 is contacted with other positions of the drawing die 100 to influence the stamping of a blank is avoided, and the use reliability of the drawing die is further improved.

In some examples, as shown in fig. 1, the edge of web 120 coincides with the edge of blankholder 130; or the edge of web 120 extends beyond the edge of blankholder 130.

The edge of the connecting plate 120 is overlapped with the edge of the blank holder 130, so that the acting force applied to the supporting rod 140 can be transmitted to the blank holder 130 through the connecting plate 120, the uniformity of the force applied to the blank holder 130 is further improved, the extrusion effect of the blank holder 130 on the blank is ensured, and the use reliability of the drawing die 100 is improved. Meanwhile, the arrangement of the connecting plate 120 overlapped with the edge of the blank holder 130 can also improve the structural regularity of the drawing die 100.

Or, the edge of the connecting plate 120 is arranged to exceed the edge of the blank holder 130, so that the acting force applied to the supporting rod 140 can be transmitted to the blank holder 130 through the connecting plate 120, and the use reliability of the drawing die 100 is improved.

In some examples, as shown in fig. 1, the number of the support bars 140 is multiple, and a distance between at least one support bar 140 of the plurality of support bars 140 and an edge of the connection plate 120 is greater than or equal to a distance threshold.

It is understood that the lengths of the plurality of support rods 140 may be the same or different. The distances between the support rods 140 may be equal or unequal, which improves the flexibility of use of the drawing die 100.

In some examples, the length of the support rod 140 can be adjusted by a slide rail, a buckle, a bolt, or other structures, so that the support rod 140 can meet the processing requirements of different parts, and the use flexibility of the drawing die 100 is improved.

In some examples, a distance between at least one support bar 140 of the plurality of support bars 140 and an outside edge of the web 120 is greater than or equal to a distance threshold.

It can be understood that the distance between the at least one support rod 140 and the edge of the connecting plate 120 is greater than or equal to the distance threshold value, so that the at least one support rod 140 can be arranged far away from the edge of the connecting plate 120, the limitation of the position of the ejector rod 140 on the drawing die 100 is further reduced, and the applicability of the drawing die 100 is improved.

Meanwhile, the distance between at least one supporting rod 140 and the edge of the connecting plate 120 is greater than or equal to the distance threshold value, so that the stability of the supporting rod 140 for supporting the connecting plate 120 can be improved, and the use reliability of the drawing die 100 is further improved.

In some examples, different distance thresholds can be set according to the size of the part, the position of the lift pin 210, and the like, so as to meet different processing requirements for different parts. In some examples, the distance threshold may be one-half or one-third of the width of the connection plate 120, and so on.

In some examples, a plurality of support rods 140 are removably coupled to the connection plate 120.

The plurality of support rods 140 are detachably connected with the connecting plate 120, so that the support rods 140 can be arranged at different positions according to use requirements, or different numbers of support rods 140 can be arranged according to use requirements, the use flexibility of the drawing die 100 is improved, and meanwhile, the cost of the drawing die 100 is reduced.

In some examples, the plurality of support rods 140 may be detachably connected to the connection plate 120 by bolts, sliding rails, or fasteners.

In some examples, as shown in fig. 2, binder ring 130 includes a connection portion 132. The blankholder 130 is connected with the connection plate 120 by a connection portion 132.

It will be appreciated that the connecting portion 132 is disposed to protrude from the blank holder 130, thereby facilitating the connection of the blank holder 130 with the connecting plate 120 and improving the connection efficiency between the blank holder 130 and the connecting plate 120. In some examples, the number of the connecting portions 132 may be plural, which ensures reliability of connection between the blank holder 130 and the connecting plate 120, thereby improving reliability of use of the drawing die 100.

In some examples, the spacing between the plurality of connecting portions 132 may be the same or different.

In some examples, the connection portion 132 is detachably connected with the connection plate 120.

The connecting portion 132 is detachably connected with the connecting plate 120, so that the connecting portion 132 can be arranged to be connected with or separated from the connecting plate 120 according to the use requirements of different dies, that is, the blank holder 130 can be connected with or separated from the connecting plate 120, and the use flexibility of the drawing die 100 is further improved.

In some examples, the connecting portion 132 may be connected to the connecting plate 120 by a snap, a slide, or a bolt.

In some examples, as shown in fig. 1 and 3, the draw die 100 further includes a lower die 150. The coupling plate 120 includes a coupling hole 122, and the lower die 150 is disposed opposite to the upper die 110 through the coupling hole 122. One of the upper mold 110 and the lower mold 150 is a male mold, and the other is a female mold.

It is understood that the coupling hole 122 may have a circular, square, irregular shape, etc., and the shape of the coupling hole 122 is adapted to the outer shape of the lower mold 150. The diameter of the coupling hole 122 is greater than or equal to the diameter of the outer shape of the lower mold 150 so that the lower mold 150 can pass through the coupling hole 122 and is disposed opposite to the upper mold 110.

Through the arrangement of the connecting holes 122 and the penetration of the lower die 150 through the connecting holes 122, the lower die 150 and the connecting plate 120 can play a limiting role, the connecting plate 120 is prevented from deviating, the blank can be accurately extruded by the blank holder 130, and the use reliability of the drawing die 100 is improved.

One of the upper mold 110 and the lower mold 150 is a male mold, and the other is a female mold, and it is understood that the male mold is adapted to the shape of the female mold. The blank is punched through the male die and the female die, so that the blank can be machined and formed into a part.

In some examples, the male and female dies may be hollow structures, further reducing the weight of the drawing die 100.

At least one of the upper die 110 and the lower die 150 is a male die, and the other is a female die, so that the positions of the male die and the female die can be set according to the processing requirements, and the use flexibility of the drawing die 100 is further improved.

In some examples, as shown in fig. 4, the draw die 100 also includes an upper die shoe 112 and a lower die shoe 152. The upper die base 112 is used for carrying the upper die 110. The lower die base 152 is used for carrying the lower die 150 and the connecting plate 120. The upper die bed 112 can be closer to or farther from the lower die bed 152.

It will be appreciated that during the drawing process, the upper die base 112 is brought close to the lower die base 152, thereby bringing the upper die 110 close to the lower die 150, so that the blank is deformed by the force, and the stamping of the blank is completed. Meanwhile, the connecting plate 120 is acted by the ejector rod 210 and is close to the upper die 110, that is, the connecting plate 120 can move relative to the upper die 110, so that the extrusion effect of the blank holder 130 on the blank is improved, the blank is prevented from wrinkling, the processing effect of the drawing die 100 on the blank is improved, and the use reliability of the drawing die 100 is improved.

In some examples, the lower die bed 152 can have a thickness of between 200 mm and 300 mm, and specifically can be 220 mm, 250 mm, or 280 mm.

In some examples, as shown in fig. 1, the lower die holder 152 includes a through-hole 154, and the support bar 140 is disposed within the through-hole 154.

The lower die holder 152 includes a through hole 154, and it is understood that the diameter of the through hole 154 is greater than the diameter of the support bar 140, thereby enabling the support bar 140 to be disposed within the through hole 154.

It is understood that the number of the through holes 154 is plural. The diameters of the different through holes 154 may be the same or different. The number of the through holes 154 is greater than or equal to the number of the support rods 140, ensuring that the support rods 140 can be disposed within the through holes 154.

In some examples, the length of the support bar 140 is less than the thickness of the lower die bed 152 such that the support bar 140 cannot protrude from the through hole 154.

In some examples, the diameter of the through hole 154 is greater than the diameter of the top bar 210, such that the top bar 210 can extend into the through hole 154 and contact the support bar 140.

Through the arrangement of the through hole 154 and the support rod 140 arranged in the through hole 154, the ejector rod 210 can be in contact with the support rod 140 in the through hole 154, the support rod 140 and the ejector rod 210 are limited through the through hole 154, the contact stability between the ejector rod 210 and the support rod 140 is improved, the support rod 140 and the ejector rod 210 are prevented from shaking or shifting, and the use reliability of the drawing die 100 is improved.

In a second aspect, embodiments of the present application provide a drawing apparatus including the drawing die 100 of the first aspect and a press. The press machine includes a top bar 210, the top bar 210 being capable of approaching or departing from the support bar 140

The drawing apparatus of the embodiment of the present application includes the drawing die 100 of the first aspect described above, and therefore has all the advantageous effects of the first aspect described above, and the details thereof are not repeated here.

In some examples, the number of the top bars 210 is multiple, and the number of the top bars 210 is greater than or equal to the number of the support bars 140, so as to meet the use requirements of different drawing dies 100. In some examples, the plurality of lift pins 210 are the same length.

In one particular embodiment, a draw die 100 is provided that includes an upper die 110 and a lower die 150. The upper mold 110 is a female mold, and the lower mold 150 is a male mold. The lower die 150 is disposed on a lower die base 152.

The drawing die 100 also includes a web 120 and a blankholder 130. The connecting plate 120 is disposed on the lower mold base 152, and the blank holder 130 is connected to a side of the connecting plate 120 close to the upper mold 110. The connecting plate 120 can be close to or distant from the upper die 110. The drawing die 100 further comprises a support rod 140, the support rod 140 is connected with one side of the connecting plate 120 far away from the upper die 110, the support rod 140 is arranged in a through hole 154 of the lower die base 152, and the support rod 140 is used for supporting the connecting plate 120 and the blank holder 130.

It is understood that the number of the support rods 140 is plural, and the plurality of support rods 140 are connected to the connection plate 120 by bolts. The blank holder 130 is connected to the connection plate 120 by bolts.

It is understood that the number of the through holes 154 is greater than the number of the support rods 140. In some examples, the number of through-holes 154 is equal to the number of lift pins 210.

Specifically, during installation, the support rod 140 may be connected to the connection plate 120, the connection plate 120 after connection is placed on the lower mold base 152, the support rod 140 is disposed in the through hole 154, and the blank holder 130 is connected to the connection plate 120. In disassembly, the blankholder 130 can be disassembled, then the male die disassembled, then the web 120 disassembled, and finally the support bar 140 disassembled.

Specifically, when the blank is punched, the ejector pins 210 apply a force to the support rods 140 so that the connecting plate 120 and the blankholder 130 can move in a direction to approach the upper die 110. Meanwhile, the upper die holder 112 drives the upper die 110 to move towards the direction close to the lower die 150, and the blank holder 130 can contact with the blank and extrude the blank, so that the blank is prevented from wrinkling.

Through the arrangement of the supporting rod 140 and the connecting plate 120, the acting force of the ejector rod 210 can be transmitted to the blank holder 130 through the connecting plate 120, the limitation of the position of the ejector rod 210 on the drawing die 100 is reduced, the applicability of the drawing die 100 is improved, meanwhile, the position of a press or the ejector rod 210 does not need to be changed, and the production cost is reduced. In addition, by arranging the support rod 140, the stroke of the ejector rod 210 moving towards the direction close to the connecting plate 120 can be shortened, so that the ejector rod 210 is prevented from contacting other positions of the drawing die 100 to influence the stamping of the blank, and the use reliability of the drawing die 100 is further improved. Meanwhile, the contact between the ejector rod 210 and other positions of the drawing die 100 is avoided without increasing the thickness of the lower die base 152, so that the thickness of the lower die base 152 is reduced, the weight of the lower die base 152 is reduced, and the cost of the drawing die 100 is reduced.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.