CN203610514U

CN203610514U - Lower die structure for U-iron extrusion die

Info

Publication number: CN203610514U
Application number: CN201320751985.2U
Authority: CN
Inventors: 冯宏志
Original assignee: Wuzhou Hengsheng Electronic Technology Co Ltd
Current assignee: Wuzhou Hengsheng Electronic Technology Co Ltd
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2014-05-28
Anticipated expiration: 2023-11-25

Abstract

The utility model relates to the technical field of dies and discloses a lower die structure for a U-iron extrusion die. The lower die structure comprises a lower die holder plate, a lower die middle cushion, a lower die, an impression, an ejector rod mechanism and an adjusting mechanism, wherein the lower die middle cushion is installed on the lower die holder plate, the lower die is installed on the lower die middle cushion, the impression is installed in the lower die, the ejector rod mechanism is installed on the lower die middle cushion and communicated with the impression, and the adjusting mechanism is installed on the lower die holder plate and used for adjusting the horizontal displacement of the impression. Because the adjusting mechanism used for adjusting the horizontal displacement of the impression is arranged in the lower die structure, the impression and a punch of an upper die device can be concentrically positioned in the extrusion process through the adjusting mechanism. In this way, the problem that a center hole of a part and the outer circle of the part are not concentric is solved, and the dimensional accuracy of a product is improved. Besides, according to the plastic deformation principle of metal materials, U-iron is produced in an extruded mode through the die, and therefore waste of raw materials is greatly reduced.

Description

A kind of lower die structure of U iron extrusion die

Technical field

Utility model relates to technical field of mold, more particularly, and particularly a kind of lower die structure of U iron extrusion die.

Background technology

U iron is the strength member on loudspeaker, and the main processing method of U iron part of the prior art is: plate blanking after-drawing moulding, and the shortcoming of its existence is: adopt can have an appointment 35% scrap (bridge) waste material of plate blanking, more serious to raw-material waste; Meanwhile, the U iron of plate blanking after-drawing moulding greatly reduces in dimensional accuracy.And the subject matter of the U iron of producing by mould is: can not guarantee die axis in lower die structure and the punch axis conllinear of patrix, in extrusion process, make mesopore and the cylindrical decentraction of part, reduce the precision of product, even made product occur scrapping phenomenon.

Utility model content

The object of utility model is to provide a kind of lower die structure that reduces waste of raw materials, improves the U iron extrusion die of dimensional accuracy.

In order to achieve the above object, the technical scheme that utility model adopts is as follows:

A kind of lower die structure of U iron extrusion die, it comprises counterdie seat board, be installed in the counterdie on counterdie seat board and pad, be installed on the counterdie on pad in counterdie, be installed on the die in counterdie, be installed in counterdie and pad above and the post rod mechanism being communicated with die, and be installed on counterdie seat board for regulating the governor motion of die horizontal displacement.

Preferably, described governor motion comprises the adjustment ring that is installed on counterdie seat board and is positioned at counterdie outside, is located at the adjustment block between counterdie and adjustment ring, and is installed on the circumferencial direction of described adjustment ring and the multiple adjustment screws corresponding with adjustment block.

Preferably, the upper outside of described counterdie is also provided with counterdie gland, and described counterdie gland is also fixedly connected with adjustment ring; And the installed surface of the top of described counterdie and counterdie gland is cascaded surface.

Preferably, described post rod mechanism comprises is located at cushion block moving up and down in upper base plate, through described counterdie seat board the push rod that is connected with the bottom of cushion block, and be installed on the knock-pin of the upper end of cushion block, and described knock-pin is communicated with die.

Preferably, also comprise the material pipe of blowing of being located at described counterdie top, described in blow material pipe and be also connected with an air compressor.

Compared with prior art, the advantage of utility model is: this bright governor motion being provided with in lower die structure for regulating die horizontal displacement, in extrusion process, can make by governor motion the punch concentric locating of die and upper mould device, the mesopore of part and the problem of cylindrical decentraction are solved, improve the dimensional accuracy of product, and according to the theory of plastic deformation of metal material, adopt mould U iron to be pushed to production, the raw-material waste of larger minimizing.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, utility model is described further.

Fig. 1 is the structure chart of the lower die structure of U iron extrusion die described in utility model.

Fig. 2 is the structure chart of the U iron extrusion die of the lower die structure composition of U iron extrusion die described in utility model.

Fig. 3 is the U iron extrusion die of lower die structure composition of U iron extrusion die described in the utility model structure chart in the time of extruding.

Fig. 4 is the U iron extrusion die of lower die structure composition of U iron extrusion die described in the utility model structure chart after extruding.

Description of reference numerals: 1, upper die plate, 2, upper base plate, 3, patrix fixed cover, 4, backing plate in patrix, 5, upper molded plate, 6, counterdie gland, 7, workpiece, 8, counterdie, 9, knock-pin, 10, adjustment ring, 11, cushion block, 12, pad in counterdie, 13, counterdie seat board, 14, push rod, 15, punch, 16, die, 17, blow material pipe, 18, adjust screw, 19, adjustment block.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, utility model is described in further detail.

Consult shown in Fig. 1, the lower die structure of a kind of U iron extrusion die that utility model provides, comprise counterdie seat board 13, be installed in the counterdie on counterdie seat board 13 and pad 12, be installed on and in counterdie, pad the counterdie 8 on 12, be installed on the die 16 in counterdie 8, be installed on and in counterdie, pad the post rod mechanism being communicated with on 12 and with die 16, and be installed on counterdie seat board 13 for regulating the governor motion of die 16 horizontal displacements.

Concrete, governor motion comprises the adjustment ring 10 that is installed on counterdie seat board 13 and is positioned at counterdie 8 outsides, be located at the adjustment block 19 between counterdie 8 and adjustment ring 10, and adjustment block 19 is arranged in the upper end of counterdie pad 12, and be installed on the circumferencial direction of adjustment ring 10 and the multiple adjustment screws 18 corresponding with adjustment block 19; Adjusting screw 18 by adjusting makes adjustment block 19 push the outside of counterdie 8, that is: the horizontal displacement of the adjustable die 16 that is positioned at counterdie 8, can make the axis of die 16 and the punch axis conllinear of patrix, solve the mesopore of part and the problem of cylindrical decentraction, and then improved the dimensional accuracy of product.

Concrete, can also counterdie gland 6 be also installed in the upper outside of counterdie 8, counterdie gland 6 is also fixedly connected with adjustment ring 10; The installed surface of the top of counterdie 8 and counterdie gland 6 is cascaded surface, can be used for preventing that counterdie 8 is at axial float.

Above-mentioned post rod mechanism comprises is located at the interior cushion block 11 moving up and down of upper base plate 12, through counterdie seat board 13 push rod 14 that is connected with the bottom of cushion block 11, and be installed on the knock-pin 9 of the upper end of cushion block 11, and knock-pin 9 is communicated with die 16.And be provided with on the top of counterdie 8 and blow material pipe 17, blow material pipe 17 and be also connected with an air compressor (not shown).After workpiece 7 extrusion moldings, can the U iron after being shaped be ejected to die 16 by post rod mechanism, and the U iron that ejects die 16 can blow away by blowing material pipe 17 compressed air that blow out, and completes discharging.

Consult shown in Fig. 2, for the U iron extrusion die of lower die structure composition of the present utility model, mainly that upper mould device is installed on lower die structure, this upper mould device comprises upper base plate 2, be installed on the upper die plate 1 on upper base plate 2, be located at upper base plate 2 lower ends and be positioned at the patrix fixed cover 3 in upper die plate 1 outside, be located at backing plate 4 in the patrix of upper die plate 1 lower end, be installed on the upper molded plate 5 of patrix fixed cover 3 lower ends by the axis of guide, and be installed on the punch 15 of the lower end of backing plate 4 in patrix.

The operation principle of 2 to Fig. 4 U iron extrusion dies that lower die structure of the present utility model is formed is described further by reference to the accompanying drawings more below:

As shown in Figure 2, in use, first by regulating the adjustment screw 18 of above-mentioned governor motion to make the axis of die 16 of lower die structure and the axis conllinear of the punch 15 of patrix upper limbs, and flat workpiece 7 is placed in die 16.

As shown in Figure 3, starting upper mould device makes punch 15 exert pressure to workpiece 7, and, because the diameter of punch 15 is the diameters that are less than die 16, there is gap between the two, and then the metal of workpiece 7 just along on the gap between punch 15 and die 16 flow, thereby make required drag cup part, i.e. T iron product.

As shown in Figure 4, by upper mould device, punch 15 is upwards exited and leave die 16, push rod 14 up pushes cushion block 11 and knock-pin 9, can make the T iron product processing exit die 16, and then utilize to blow and expect that pipe 17 compressed air that blow out blow away, and can complete the making of T iron product.

Known by description above, this bright one side is provided with the governor motion for regulating die 16 horizontal displacements in lower die structure, in mould extrusion process, can make by governor motion punch 15 concentric locatings of die 16 and upper mould device, the mesopore of part and the problem of cylindrical decentraction are solved, improve the dimensional accuracy of product, and according to the theory of plastic deformation of metal material, adopt mould U iron to be pushed to production, the raw-material waste of larger minimizing.

Although described by reference to the accompanying drawings the embodiment of utility model; but the patent owner can make various distortion or modification within the scope of the appended claims; as long as be no more than the described protection domain of the claim of utility model, all should be within the protection domain of utility model.

Claims

1. the lower die structure of a U iron extrusion die, it is characterized in that: comprise counterdie seat board (13), be installed on pad (12) in the counterdie on counterdie seat board (13), be installed on the counterdie (8) on pad (12) in counterdie, be installed on the die (16) in counterdie (8), be installed in counterdie and pad (12) above and the post rod mechanism being communicated with die (16), and it is upper for regulating the governor motion of die (16) horizontal displacement to be installed on counterdie seat board (13).

2. the lower die structure of U iron extrusion die according to claim 1, it is characterized in that: described governor motion comprises the adjustment ring (10) that is installed on counterdie seat board (13) and goes up and be positioned at counterdie (8) outside, be located at the adjustment block (19) between counterdie (8) and adjustment ring (10), and be installed on the circumferencial direction of described adjustment ring (10) and the multiple adjustment screws (18) corresponding with adjustment block (19).

3. the lower die structure of U iron extrusion die according to claim 2, is characterized in that: the upper outside of described counterdie (8) is also provided with counterdie gland (6), and described counterdie gland (6) is also fixedly connected with adjustment ring (10).

4. the lower die structure of U iron extrusion die according to claim 2, it is characterized in that: described post rod mechanism comprises is located at cushion block moving up and down (11) in upper base plate (12), the push rod (14) that passes described counterdie seat board (13) and be connected with the bottom of cushion block (11), and be installed on the knock-pin (9) of the upper end of cushion block (11), and described knock-pin (9) is communicated with die (16).

5. according to the lower die structure of the U iron extrusion die described in claim 1～4 any one, it is characterized in that: also comprise be located at described counterdie (8) top blow material pipe (17), described in blow material pipe (17) and be also connected with an air compressor.