CN212884500U

CN212884500U - Twisting device suitable for small plane forming

Info

Publication number: CN212884500U
Application number: CN202021505561.4U
Authority: CN
Inventors: 黄旺洲
Original assignee: Zhangzhou Ruiteng Electric Appliance Co ltd
Current assignee: Zhangzhou Ruiteng Electric Appliance Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-06
Anticipated expiration: 2030-07-27

Abstract

The utility model provides a be applicable to facet shaping and rub device with the hands, because design the first plastic terrace die and the second plastic terrace die of mutual concatenation to the shaping terrace die of traditional integrated into one piece, from this, can change the working face of first plastic terrace die according to the demand, make the working face of first plastic terrace die increase the plastic pressure to the part, then can process out a step that has difference in height H on the surface of part, this kind of rubbing with the hands is similar to tearing the mouth, the material is a plastic deformation's process, therefore can effectually reduce the resilience angle, satisfy the part dimensional requirement; in addition, the twisting differential structure meeting the R value of the specification can be processed on the part by replacing the first shaping male die according to the requirement of the product, so that the technical defect in the background technology is overcome.

Description

Twisting device suitable for small plane forming

Technical Field

The utility model relates to a relay components and parts former especially relates to a device is rubbed with hands in facet shaping suitable for.

Background

In the hardware stamping part, due to the stress and fatigue resistance of raw materials, the flatness of the raw materials, the pressure of a punch press, the service life of a spring, stamping lubricants and other influences, the part 5a rebounds in the elastic deformation process, so that the plane and the forming angle of the part 5a are unstable, and the height forming height of a riveting plane is influenced. In order to control the influence of the springback of the part Z after bending and forming on the riveting plane, a section difference structure (A position in figure 2) needs to be twisted on the part, so that the part is converted from elastic deformation to plastic deformation, and the springback is reduced.

The traditional Z-bending forming is one-step forming of a male die 4a and a female die 3a which are of an integral structure, and the structure cannot be adjusted according to the actual part change condition due to the fact that Z bending is unstable in the actual production process; the twisting points B (shown in figure 4) of the integral male die and the female die cannot realize the blade edge in the slow thread processing, and arc transition exists, so that the transition R angle after the male die and the female die are twisted is too large due to the existence of the arc, the riveting plane is reduced, and the requirement of a client cannot be met; maintenance efficiency and cost: the dies need to be disassembled and assembled when the forming male die and the forming female die of the integral structure are produced and debugged, and the male die 4a and the female die 3a cannot be maintained through grinding and slow wires when worn and need to be integrally replaced; the forming gap of the rubbing plane cannot be adjusted independently, and if the integral forming gap is smaller than the thickness of the material, the part is obviously stamped and has abnormal appearance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem, the utility model provides a device is rubbed with hands in facet shaping suitable for can prevent that the part from taking place because of the condition that rebound phenomenon leads to size precision to reduce.

In order to achieve the above purpose, the utility model provides a technical scheme is:

a twisting device suitable for facet forming comprises an upper die holder provided with an upper die and a lower die holder provided with a female die, wherein the upper die comprises a first shaping male die and a second shaping male die, the first shaping male die and the second shaping male die are spliced with each other and then fixed on the upper die holder, and the female die is matched with the working surfaces of the spliced first shaping male die and the spliced second shaping male die; the working surface of the first shaping male die is at least slightly lower in horizontal height than the working surface of the second shaping male die.

Two opposite wall surfaces of the first shaping male die and the second shaping male die are respectively provided with a clamping piece and a clamping groove which can be matched with each other.

The top of draw-in groove is provided with the locating hole, the detachable locating pin that is provided with in the locating hole.

The locating pin is provided with subtracts and prevents the groove.

The positioning pin is provided with a through groove.

The clamping grooves are provided with two or more than two.

And key grooves are formed in the two wall surfaces of the first shaping male die and the second shaping male die which deviate from each other.

The technical scheme has the advantages that:

The technical solutions of the present invention will be described clearly and completely with reference to the following detailed description, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Drawings

FIG. 1 is a schematic structural view of a part before machining;

FIG. 2 is a schematic structural view of a part after being processed by the prior art;

FIG. 3 is a schematic structural diagram of a conventional reshaping device;

FIG. 4 is a schematic structural diagram of a shaping male die and a shaping female die in the prior art;

fig. 5 is a schematic structural view of the present invention;

fig. 6 is a schematic structural view of the upper mold of the present invention;

fig. 7 is a schematic structural view of a cross-sectional view of an upper die of the present invention;

FIG. 8 is a schematic structural view of another embodiment of the first shaping punch of the present invention;

fig. 9 is a sectional view of a second shaping punch of the present invention;

fig. 10 is a schematic structural view of the positioning pin of the present invention;

fig. 11 is a schematic structural diagram of the parts processed by the present invention.

Detailed Description

A twisting device suitable for facet forming comprises an upper die holder 1 provided with an upper die 4 and a lower die holder 2 provided with a female die 3, wherein the upper die 4 comprises a first shaping male die 41 and a second shaping male die 42, the first shaping male die 41 and the second shaping male die 42 are spliced with each other and then fixed on the upper die holder 1, and the female die 3 is matched with the working surfaces of the spliced first shaping male die 41 and the spliced second shaping male die 42; the horizontal height of the working surface of the first shaping convex die 41 is at least a little lower than that of the working surface of the second shaping convex die 42, and the bottom of the first shaping convex die 41 is lower than that of the second shaping convex die 42, so that a step (namely, twisting difference) with a height difference H can be machined on the surface of the part 5, the twisting is similar to tearing, the material is a plastic deformation process, and the rebound angle can be effectively reduced, and the size requirement of the part can be met. In a similar way, the female die is provided with a profile modeling splicing structure corresponding to the male die, the forming clearance of the male die and the female die is less than or equal to t, so that the part has an overpressure process, the transition angle R after rubbing is less than or equal to 0.2, and the riveting plane is larger and smoother than the original one.

Specifically, two opposite wall surfaces of the first shaping male die 41 and the second shaping male die 42 are respectively provided with a clamping piece 410 and a clamping groove 420 which can be matched with each other; through fixed mode like this, dismantle and the installation all be convenient promptly, guaranteed the body intensity of first plastic terrace die, second plastic terrace die moreover to a very big extent, reduce the plastic terrace die and lead to the condition probability of warping because of the fluting after high strength, long-time work.

More specifically, in this embodiment, the clamping piece 410 is disposed on the first shaping male die 41, the clamping groove 420 is disposed on the second shaping male die 42, and two or more clamping grooves 420 are provided; through such setting, obviously can set up a plurality of draw-in grooves on the second plastic terrace die, just can the different first plastic terrace die of multiple specification of adaptation to be fit for the part processing of different specifications.

Specifically, a positioning hole 421 is arranged at the top of the clamping groove 420, and a positioning pin 40 is detachably arranged in the positioning hole 421; through such setting, after first plastic terrace die and the concatenation of second plastic terrace die, can insert the locating pin in the locating hole that corresponds promptly to strengthen first plastic terrace die and the concatenation of second plastic terrace die department joint strength, prevent to warp.

More specifically, the fastener 410 is provided with two limiting parts 411 at least along the cross section thereof, and the setting of the two limiting parts 411 is satisfied with: after the card 411 is clamped into the card slot 420, the card 411 can be limited to move up and down under the action of the two limiting parts.

More specifically, the positioning pin 40 is provided with a relief groove 400; through such setting, can reduce the contact friction force of locating pin and second plastic terrace die to a certain extent to in the dismantlement locating pin.

More specifically, the positioning pin 40 is provided with a through groove 401; through such setting, dismantle certain position with the mode of knocking with the locating pin and expose behind the through groove, can follow through groove insert rope spare and extract the locating pin, prevent to continue to knock the locating pin for a long time and lead to the locating pin to take place deformation and be more difficult to dismantle.

Specifically, key grooves 43 are formed in two wall surfaces of the first shaping male die 41 and the second shaping male die 42, which face away from each other; with this arrangement, the first and

second shaping punches

41 and 42 can be fixed to the upper die holder 1 after the joining by engaging the key groove 43 with the member or bolt 44.

It should be noted that, this neotype only has described the technical essential of plastic terrace die, in fact, also can with the concatenation form of die 3 design and plastic terrace die adaptation, because rub with hands and move can be because the board is poor or the influence of mould life-span in actual production, consequently the regulating frequency is high in production, and the structure of piecing together can be more economical, effectual reduction cost of maintenance, guarantees that the part is stable in production.

Claims

1. The utility model provides a device is rubbed with hands in facet shaping suitable for, includes the upper die base that is equipped with the mould and the die holder that is equipped with the die, its characterized in that: the upper die comprises a first shaping male die and a second shaping male die, the first shaping male die and the second shaping male die are spliced with each other and then fixed on an upper die base, and the female die is matched with the working surfaces of the spliced first shaping male die and the spliced second shaping male die; the working surface of the first shaping male die is at least slightly lower in horizontal height than the working surface of the second shaping male die.

2. A kneading device suitable for facet shaping according to claim 1, characterized in that: two opposite wall surfaces of the first shaping male die and the second shaping male die are respectively provided with a clamping piece and a clamping groove which can be matched with each other.

3. A kneading device suitable for facet shaping according to claim 2, characterized in that: the top of draw-in groove is provided with the locating hole, the detachable locating pin that is provided with in the locating hole.

4. A kneading device suitable for facet shaping according to claim 3, characterized in that: the locating pin is provided with subtracts and prevents the groove.

5. A kneading device suitable for facet shaping according to claim 3, characterized in that: the positioning pin is provided with a through groove.

6. A kneading device suitable for facet shaping according to claim 2 or 3, characterized in that: the clamping grooves are provided with two or more than two.

7. A kneading device suitable for facet shaping according to claim 1, characterized in that: and key grooves are formed in the two wall surfaces of the first shaping male die and the second shaping male die which deviate from each other.