CN208303626U - Edge rolling forms the progressive die - Google Patents

Abstract

The utility model belongs to stamping die technology, it is related to a kind of edge rolling molding progressive die, the first pressing part, the second pressing part and the third pressing part set gradually including upper die and lower die and between upper die and lower die, first pressing part is used to form the outermost 90 ° of circular arcs of tablet, second pressing part is used to form the innermost 90 ° of circular arcs of tablet, and the third pressing part is used to form the transition arc among tablet.The utility model now uses three steps to shape, and bending angle is no more than 90 °, avoids too big and appearance the material rebounds of disposable bending angle, therefore the appearance after edge rolling more meets the requirements.

Description

Edge rolling forms the progressive die

Technical field

The utility model relates to stamping die technology, in particular to a kind of edge rolling forms the progressive die.

Background technique

Punching press be at room temperature, using the mold being mounted on press machine to material apply pressure, make its generate separation or Plastic deformation, thus a kind of pressure processing method of part needed for obtaining.

It also can be carried out edge rolling operation in stamping die, but during tablet is rolled, outside density can become in product The internal stress changed, therefore generated will lead to rebound, and such as directly disposable forming of general mold edge rolling will appear extrusion deformation and end The whole roundness deformation that has some setbacks is held, client's needs are unsatisfactory for.

Utility model content

The main purpose of the utility model is to provide a kind of edge rollings to form the progressive die, and the appearance of edge rolling is made to meet client's It is required that.

The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of edge rolling forms the progressive die, including upper mold, under Mould and the first pressing part set gradually between upper die and lower die, the second pressing part and third pressing part, first punching Splenium is used to form the outermost 90 ° of circular arcs of tablet, and second pressing part is used to form the innermost 90 ° of circular arcs of tablet, institute Third pressing part is stated to be used to form the transition arc among tablet.

Specifically, first pressing part includes the upper Bending punch positioned at upper mold and the positioned at lower die first lower tray With the first lower folded block, one jiao of upper Bending punch bottom surface is in outer arcuate, the bottom surface of tray and upper Bending punch under first, First lower folded block is in the inner arc cooperated with upper Bending punch.

Specifically, second pressing part includes the second subiculum positioned at the sideslip Bending punch of upper mold and positioned at lower die Block and the second lower folded block, sideslip Bending punch are equipped with a bit-avoiding slot, and the bottom surface of the second lower tray and sideslip Bending punch is matched It closes, the second lower folded block is in the inner arc cooperated with sideslip Bending punch.

Specifically, the third pressing part includes positioned at the edge rolling tray of lower die and the briquetting positioned at upper mold and edge rolling punching Head, there is a plane and an arc positioning region, briquetting corresponding flat on edge rolling tray, and edge rolling formed punch has a matching arc The edge rolling slot of positioning region.

By adopting the above technical scheme, the beneficial effect of technical solutions of the utility model is:

The utility model now uses three steps to shape, and bending angle is no more than 90 °, it is too big to avoid disposable bending angle And the material rebounds occurred, therefore the appearance after edge rolling more meets the requirements.

Detailed description of the invention

Fig. 1 is the rough schematic that embodiment edge rolling forms the progressive die；

Fig. 2 is the partial enlarged view of location A in Fig. 1；

Fig. 3 is the partial enlarged view of B location in Fig. 1；

Fig. 4 is the partial enlarged view of location of C in Fig. 1；

Fig. 5 is the variation relation figure of tablet.

Digital representation in figure:

1- upper mold；

2- lower die；

The first pressing part of 3-,

The upper Bending punch of 31-,

The lower tray of 32- first,

The lower folded block of 33- first；

The second pressing part of 4-,

41- sideslip Bending punch,

411- bit-avoiding slot,

The lower tray of 42- second,

The lower folded block of 43- second；

5- third pressing part,

51- edge rolling tray,

52- briquetting,

52- edge rolling formed punch；

6- tablet.

Specific embodiment

The utility model is described in further detail combined with specific embodiments below.

Embodiment:

As shown in Figures 1 to 5, a kind of edge rolling of the utility model forms the progressive die, including upper mold 1, lower die 2 and upper The first pressing part 3, the second pressing part 4 and the third pressing part 5 set gradually between mould 1 and lower die 2, the first pressing part 3 are used to 6 outermost 90 ° of circular arcs of tablet are formed, the second pressing part 4 is used to form 6 innermost 90 ° of circular arcs of tablet, third pressing part 3 For forming the transition arc among tablet 6.Tablet 6 passes sequentially through the first pressing part 3, the second pressing part 4 and third pressing part 5 Edge rolling movement is completed, bending angle is no more than 90 ° three times, avoids disposable bending angle material that is too big and occurring and returns Bullet, therefore the appearance after edge rolling more meets the requirements.

As shown in Figure 2 and Figure 5, the first pressing part 3 includes positioned at the upper Bending punch 31 of upper mold 1 and positioned at lower die 2 First lower tray 32 and the first lower folded block 33, one jiao of upper 31 bottom surface of Bending punch are in outer arcuate, the first lower tray 32 with it is upper The bottom surface of Bending punch 31, the first lower folded block 33 is in the inner arc cooperated with upper Bending punch 31.Upper Bending punch 31 First tablet 6 is clamped with the first lower tray 32 after downlink, then the first lower folded block 33 bends on the top of tablet 6 in Fig. 5 1. number structure.

As shown in Figure 3 and Figure 5, the second pressing part 4 includes positioned at the sideslip Bending punch 41 of upper mold 1 and positioned at lower die 2 The second lower tray 42 and the second lower folded block 43, sideslip Bending punch 41 is equipped with a bit-avoiding slot 411, the second lower tray 42 with The bottom surface of sideslip Bending punch 41, the second lower folded block 43 is in the inner arc cooperated with sideslip Bending punch 41.Because First pressing part 4 has formed 6 outermost 90 ° of circular arcs of tablet, and de- material when needs to consider to keep away a problem, so to set Set bit-avoiding slot 411 and sideslip structure.First tablet 6 is clamped with the second lower tray 42 after 41 downlink of sideslip Bending punch, then side Sliding Bending punch 41 breaks away, and 6 end of tablet is bended in the 2. number structure in Fig. 5 together with the second lower folded block 43 of rise.

As shown in Figure 4 and Figure 5, third pressing part 5 includes the briquetting positioned at the edge rolling tray 51 of lower die 2 and positioned at upper mold 52 and edge rolling formed punch 53, there are a plane and an arc positioning region, 52 corresponding flat of briquetting, edge rolling formed punch on edge rolling tray 51 The 52 edge rolling slots with a matching arc positioning region.When molding, there are two the tablets 6 of 90 ° of circular arcs to lean on arc positioning region Positioning, then tablet 6 is pushed down fixation by briquetting 52, and then edge rolling formed punch 53, which pushes, forms the complete edge rolling of tablet 6, is formed as schemed 3. number structure in 5.

Above-described is only some embodiments of the utility model.For those of ordinary skill in the art, Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical Novel protection scope.

Claims (4)

1. a kind of edge rolling forms the progressive die, it is characterised in that: set gradually including upper die and lower die and between upper die and lower die The first pressing part, the second pressing part and third pressing part, first pressing part be used to form the outermost 90 ° of circles of tablet Arc, second pressing part are used to form the innermost 90 ° of circular arcs of tablet, and the third pressing part is used to form among tablet Transition arc.

2. the progressive die according to claim 1, it is characterised in that: first pressing part includes the upper bending positioned at upper mold Formed punch and positioned at the first lower tray of lower die and the first lower folded block, one jiao of upper Bending punch bottom surface are in outer arcuate, and first The bottom surface of lower tray and upper Bending punch, the first lower folded block is in the inner arc cooperated with upper Bending punch.

3. the progressive die according to claim 1, it is characterised in that: second pressing part includes the sideslip folding positioned at upper mold Curved formed punch and positioned at the second lower tray of lower die and the second lower folded block, sideslip Bending punch are equipped with a bit-avoiding slot, and second The bottom surface of lower tray and sideslip Bending punch, the second lower folded block is in the inner arc cooperated with sideslip Bending punch.

4. the progressive die according to claim 1, it is characterised in that: the third pressing part includes the edge rolling support positioned at lower die Block and briquetting and edge rolling formed punch positioned at upper mold have a plane and an arc positioning region on edge rolling tray, and briquetting is corresponding Plane, edge rolling formed punch have the edge rolling slot of a matching arc positioning region.