CN216027554U

CN216027554U - Die structure for pressing and forming of tensile part

Info

Publication number: CN216027554U
Application number: CN202022402393.2U
Authority: CN
Inventors: 杨朔冰
Original assignee: Anhui Xinyue Precision Machinery Co ltd
Current assignee: Anhui Xinyue Precision Machinery Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2022-03-15
Anticipated expiration: 2030-10-26

Abstract

A die structure for pressing and forming a drawn part comprises: upper die base, die holder, the upper die base is located the die holder top and can carry out up-and-down reciprocating motion, still includes: the lower die plate is installed above the lower die base, the punching mechanism is installed below the upper die base, the unloading mechanism is installed below the upper die base to help the punching mechanism to be separated from parts, the guide mechanism is installed between the upper die base and the lower die base, and the guide mechanism fixes the motion track of the upper die base. The die has the advantages of simple structure, convenient manufacture and lower cost.

Description

Die structure for pressing and forming of tensile part

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a die structure for line pressing and forming of a stretching part.

Background

The die for forming the press line of the existing stamping device is simple in structure, the precision of the press line position is not high during stamping, the automation degree of the existing die structure is low, and parts are often wrapped on a stamping mechanism to be manually separated after the parts are stamped.

Disclosure of Invention

In view of the above problems in the background art, the present invention provides a mold structure for forming a drawn part, including: upper die base, die holder, the upper die base is located the die holder top and can carry out up-and-down reciprocating motion, its characterized in that still includes: the stamping die comprises a lower die plate, a stamping mechanism, an unloading mechanism and a guide mechanism, wherein the lower die plate is installed above a lower die base, the stamping mechanism is installed below an upper die base, the unloading mechanism is installed below the upper die base to assist the stamping mechanism to be separated from parts, the guide mechanism is installed between the upper die base and the lower die base, and the guide mechanism fixes the motion trail of the upper die base.

Further, the punching mechanism includes: the upper die comprises an upper base plate, an upper clamp plate, a line pressing punch and a guiding punch, wherein the upper clamp plate is fixedly connected with an upper die base through the upper base plate, the guiding punch is installed on the upper clamp plate and penetrates through the line pressing punch, a molded surface matched with a part is arranged on the lower end surface of the line pressing punch, and the line pressing surface of the line pressing punch protrudes out of the lower end surface of the line pressing punch.

Furthermore, a female die is arranged on the lower template, and the female die and the line pressing punch are located on the same vertical straight line.

Further, the discharge mechanism comprises: backstop board, stripper, pressure material spring, spacing bolt, the backstop board is located the punch holder below, the stripper is installed the backstop board below, the counter bore has been seted up to the upper die base, spacing bolt inserts in the counter bore and run through in proper order upper padding plate, punch holder, backstop board, spacing bolt's bottom with the stripper is fixed continuous, press the top of material spring with the upper die base links to each other, press the bottom of material spring with the backstop board links to each other.

Further, the method also comprises the following steps: the clamp plate insert is installed on the upper backing plate, and the stripper plate insert is installed on the stop plate.

Further, the guide mechanism includes: the guide post is vertically arranged on the lower die base, the guide sleeve is arranged on the upper die base, the guide post penetrates through the guide sleeve to be tightly matched, and the guide sleeve vertically moves up and down along the guide post when the upper die base moves.

Further, the method also comprises the following steps: the lower bolster is installed between the lower bolster and the lower die holder, the flotation spring mounting groove has been seted up on the lower bolster, the flotation spring mounting is in the flotation spring mounting groove, the flotation spring can compress and contract completely in the auxiliary material spring mounting groove.

Compared with the prior art, the utility model provides a die structure for line pressing and forming of a stretching part, which has the following beneficial effects:

1. the utility model utilizes the line pressing punch and the guide punch to form a punching mechanism, thereby improving the position precision of line pressing during punching.

2. According to the utility model, the guide mechanism is arranged between the upper die holder and the lower die holder, so that the upper die holder can keep stable linear motion up and down when moving, and the stamping stability is improved.

3. According to the utility model, the unloading mechanism is arranged below the upper die base, and after the pressing line is formed, the part is automatically separated from the stamping mechanism by using the unloading mechanism, so that the production automation capacity is improved.

Description of the drawings:

fig. 1 is a schematic structural diagram of a structural state 1 of a die for line pressing and forming of a drawn part.

Fig. 2 is a schematic structural diagram of a structural state 2 of a die for line pressing and forming of a drawn part.

Fig. 3 is a schematic structural diagram of a structural state 3 of a die for line pressing and forming of a drawn part.

Fig. 4 is a schematic structural diagram of a structural state 4 of a die for line pressing and forming of a drawn part.

Wherein: 1-an upper die holder; 2-upper cushion plate; 3, putting a splint; 4-a stopper plate; 5, unloading a plate; 6-lower template; 7-lower backing plate; 8-a lower die holder; 9-guide pillar; 10-a limit bolt; 11-pushing spring; 12-material removing plate feeding; 13-splint insert; 14-a line pressing punch; 15-guiding the punch.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a die structure for line pressing and forming of a stretching part, which comprises: upper die base 1 and die holder 8 still include upper padding plate 2, punch holder 3, stripper 5 and lower bolster 6, punch holder 2 sets up 1 below of upper die base, stripper 5 with connect through spacing bolt 10 between the upper padding plate 2, 3 below settings of punch holder stripper 5, leave between punch holder 3 and the stripper 5 and press the material gap still be equipped with the punching press mechanism that carries out the punching press to the part on the upper die base 1 still be equipped with the slip guiding mechanism that punching press mechanism cooperation was used on the upper die base 1.

The utility model is further improved in that the punching mechanism penetrates through the upper clamping plate 3, the stop plate 4 and the discharging plate 5 in sequence, the punching mechanism comprises a line pressing punch 14 and a guide punch 15, the bottom end surface of the line pressing punch 14 is provided with a molded surface corresponding to the part, the purpose of pressing the line is achieved through the combination of the line pressing punch 14 and the guide punch 15, instead of being completed by stamping of a forming punch, as in the prior art, the problem of stamping precision of a single forming punch 14 is avoided, meanwhile, the precision of the product is ensured, the punch 15 has the effect of shaping the part in the previous step, so that the part does not have slight position deviation in the horizontal direction, and simultaneously, through the combination of the punch 14 and the punch 15, can compress tightly the upper and lower position of part when closed state, all carried out the rigidity from about the upper and lower of part like this, just so supplementary precision that has improved the line ball position.

In order to improve the consistency of the upper and lower positions of the upper die holder 1 and the lower die holder 8 in the stamping process, a guide pillar 9 is arranged between the upper die holder 1 and the lower die holder 8, the lower end of the guide pillar 9 is fixed on the lower die holder 8 through clearance fit, and a guide sleeve tightly matched with the guide pillar 9 is arranged on the upper die holder 1.

In order to enable the discharging plate 5 to have good compressibility and automatically complete the separation action of the upper clamping plate 3 and the discharging plate 5 after the punching is completed, a material pressing spring 11 is further arranged on the upper die base 1, and the material pressing spring 11 penetrates through the upper backing plate 2 and the upper clamping plate 3 to provide elastic pressure for the material pressing plate 5.

In order to enable the upper die holder 1, the upper clamping plate 3, the stop plate 4 and the discharging plate 5 to be integrally connected and achieve the limiting effect on the discharging plate 5, a countersunk hole is formed in the upper die holder 1, the limiting bolt 9 is hung in the countersunk hole, and the lower end of the limiting bolt penetrates through the upper clamping plate 2, the material pressing plate 3 and the stop plate and extends to the discharging plate 5.

The specific connection relation of the utility model is as follows:

this mould structure, including from top to bottom connect gradually have: the punching machine comprises an upper die holder 1, an upper padding plate 2, an upper clamping plate 3, a stop plate 4, a stripper plate 5, a lower die plate 6, a lower padding plate 7 and a lower die holder 8, wherein a guide pillar 9 with a guiding function is arranged between the upper die holder 1 and the lower die holder 8, the lower end of the guide pillar 9 is fixed on the lower die holder 8 through clearance fit, the upper die holder 1 is provided with a guide sleeve which is in close fit with the guide pillar 9, and when an upper table surface of a punching machine drives the upper die holder 1 to move, the guide sleeve of the upper die holder 1 vertically moves along the guide pillar 9 to play a guiding function; a material pressing spring 11 and a limiting bolt 10 are further arranged below the upper die base 1, the material pressing spring 11 mainly acts on a material pressing plate 5, when the material pressing plate 5 moves up and down on the upper table surface of the punch press, the material pressing plate 5 completes reciprocating motion of material pressing and discharging through the compression force of the material pressing spring 11, the limiting bolt 10 is hung on the upper die base 1 and is connected to the material discharging plate 5 through threads, and the limiting effect is achieved when the material pressing spring 11 drives the material pressing plate 5 to move downwards; set up line ball drift 14 on punch plate 3, line ball drift 14 bottom is provided with the profile corresponding with the part, at the tail of hanging of the big round in line ball drift 14 back, through bolt fastening line ball drift 14, take off the flitch and go into son 12 and install on upper padding plate 2, set up on stripper plate 5 and take off the flitch and go into son 13, take off the flitch and go into son 13 and fix on backstop board 4 through threaded connection, line ball drift 14 runs through take off the flitch go into son 12 and with take off flitch 12 clearance fit, during the punching press: the upper die base 1 of the die moves downwards, and the lower die plate is fixed on the lower die base 8 until the die is completely closed, so that one-time stamping is completed.

The use process of the utility model is as follows:

a, an upper die holder 1 before stamping is positioned at the topmost part, a stripper plate 5 is hung below an upper clamping plate 3 through a limiting bolt 10, a stop plate 4 is fixedly connected with the stripper plate 5, the stop plate 4 is separated from the upper clamping plate 3, and a line pressing punch 14 is retracted in the stripper plate 5, as shown in figure 1;

b, positioning, namely moving the upper die base 1 downwards, moving the stripper plate 5 downwards to press the surface of the part, continuing to move the upper die base downwards, tightly connecting the stop plate 4 with the upper clamping plate 3, and extending the line pressing punch 14 downwards out of the stripper plate 5 and into the part, as shown in figure 2;

c, stamping, namely, continuously moving the upper die holder 1 downwards, moving the stripper plate 5 and the line pressing punch 14 downwards to press the part into a female die of the lower die plate 6 to complete stamping, as shown in fig. 3;

d, during unloading, the upper die base 1 moves upwards, the unloading plate 5 continues to remain on the surface of the part under the action of the material pressing spring, the line pressing punch 14 is separated from the part, and the stop plate 4 is separated from the upper clamping plate 3;

e: demoulding, wherein the upper die holder 1 continues to move upwards, the stripper plate 5 and the line pressing punch continue to move upwards to leave the surface of the part, and the part leaves the die cavity of the lower die plate 6 under the action of the buoyancy spring, as shown in fig. 4;

the die has the advantages of simple structure, convenient manufacture and lower cost.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A die structure for pressing and forming a drawn part comprises: upper die base (1), die holder (8), upper die base (1) are located die holder (8) top can carry out up-and-down reciprocating motion, its characterized in that still includes: lower bolster (6), punching press mechanism, shedding mechanism, guiding mechanism, install lower bolster (6) lower bolster (8) top, punching press mechanism installs upper die base (1) below, shedding mechanism installs upper die base (1) below help punching press mechanism breaks away from with the part, guiding mechanism installs upper die base (1) with between die holder (8), guiding mechanism will the movement track of upper die base (1) is fixed, punching press mechanism includes: the die comprises an upper padding plate (2), an upper clamping plate (3), a line pressing punch head (14) and a guiding punch head (15), wherein the upper clamping plate (3) is fixedly connected with an upper die base (1) through the upper padding plate (2), the guiding punch head (15) is installed on the upper clamping plate (3), the guiding punch head (15) penetrates through the line pressing punch head (14), the lower end face of the line pressing punch head (14) is provided with a molded surface matched with a part, and the line pressing face of the line pressing punch head (14) protrudes out of the lower end face of the line pressing punch head (14).

2. The die structure for line pressing and forming of the drawn parts according to claim 1, wherein a female die is arranged on the lower die plate (6), and the female die and the line pressing punch (14) are located on the same vertical line.

3. The die structure for line pressing and forming of the drawn part as claimed in claim 2, wherein the unloading mechanism comprises: backstop board (4), stripper (5), pressure material spring (11), spacing bolt (10), backstop board (4) are located punch holder (3) below, stripper (5) are installed backstop board (4) below, the counter sink has been seted up in upper die base (1), spacing bolt (10) insert in the counter sink and run through in proper order upper padding plate (2), punch holder (3), backstop board (4), the bottom of spacing bolt (10) with stripper (5) are fixed continuous, press the top of material spring (11) with upper die base (1) link to each other, press the bottom of material spring (11) with backstop board (4) link to each other.

4. The die structure for line pressing and forming of the drawn part according to claim 3, further comprising: the automatic unloading device is characterized in that a clamping plate insert (13) and an unloading plate insert (12) are arranged, the clamping plate insert (13) is arranged on the upper base plate (2), and the unloading plate insert (12) is arranged on the unloading plate (5) and connected with the stop plate (4).

5. The die structure for line pressing and forming of the drawn part according to claim 4, wherein the guiding mechanism comprises: the guide structure comprises a guide pillar (9) and a guide sleeve, wherein the guide pillar (9) is vertically installed on the lower die base (8), the guide sleeve is installed on the upper die base (1), the guide pillar (9) penetrates through the guide sleeve to be tightly matched, and the guide sleeve vertically moves up and down along the guide pillar (9) when the upper die base (1) moves.

6. The die structure for line pressing and forming of the drawn part according to claim 5, further comprising: lower bolster plate (7), flotation spring, lower bolster plate (7) are installed lower bolster (6) with between die holder (8), flotation spring mounting groove has been seted up on lower bolster (6), flotation spring installs in the flotation spring mounting groove, flotation spring can compress and contract completely in the flotation spring mounting groove.