CN210614867U - Valve plate fine blanking die - Google Patents

Abstract

The utility model relates to a valve plate finish blanking die, it includes: a cavity plate; the die insert is provided with at least one die, the die insert can be detachably arranged in the die plate, and the die insert is provided with at least one through hole I; the valve wire extrusion punch is arranged in the through hole I, an expansion part is arranged on the valve wire extrusion punch and opposite to the tail end of the working end, the maximum outer diameter of the expansion part is larger than the diameter of the through hole I, the expansion part is tightly abutted against the lower bottom surface of the female die insert, the lower bottom surface is opposite to the working surface of the female die insert, and the working end of the valve wire extrusion punch protrudes out of the working surface of the female die insert. The time for repairing and removing the mold can be saved.

Description

Valve plate fine blanking die

Technical Field

The utility model belongs to the mould field relates to a fine blanking mould, in particular to valve plate fine blanking die.

Background

The valve plate is an important part of an automobile air conditioner compressor, and the current method for machining the valve plate mainly comprises fine blanking. The valve plate comprises 5 or more than 5 valve wire grooves, and the valve wire grooves can only be formed in a fine die by adopting an extrusion forming method. Then, the width of the valve wire groove is narrow, and other shapes such as a circle or a triangle are included. In the extrusion forming of the die, the valve wire extrusion punch is easy to break. Further, the large number of valve slots results in inconsistent timing of the occurrence of each punch breakup. Therefore, the production field needs to be stopped and repaired frequently. Traditional fine blanking die project organization, valve line extrusion drift is together fixed with lower mould backing plate etc. and the maintenance is difficult, the cycle length.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a valve plate finish punching die has solved the problem that extrusion valve line drift collapses sword and changes the in-process form removal and take time in the valve plate finish punching operation.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a valve plate finish blanking die, it includes:

a cavity plate;

the die insert is provided with at least one die, the die insert can be detachably arranged in the die plate, and the die insert is provided with at least one through hole I;

the valve wire extrusion punch is arranged in the through hole I, an expansion part is arranged on the valve wire extrusion punch and opposite to the tail end of the working end, the maximum outer diameter of the expansion part is larger than the diameter of the through hole I, the expansion part is tightly abutted against the lower bottom surface of the female die insert, the lower bottom surface is opposite to the working surface of the female die insert, and the working end of the valve wire extrusion punch protrudes out of the working surface of the female die insert.

Optionally, a through hole ii is further formed in the concave template, the through hole ii corresponds to the through hole i, and the expansion portion is arranged in the through hole ii.

Optionally, the minimum diameter of each part of the through hole II is larger than the maximum outer diameter of the expansion part.

Optionally, a caulking groove is formed in the cavity plate, and the cavity plate insert is embedded in the caulking groove.

Further, the shape of the caulking groove is matched with that of the concave die insert.

Further, the working surface of the concave die insert and the working surface of the concave die plate are in the same plane.

Further, the thickness of the cavity plate insert is less than half of the thickness of the cavity plate.

Optionally, the valve line extrusion punch and the through hole i are arranged in a one-to-one correspondence manner.

Optionally, the number of the through holes i in a single die insert is more than five.

Optionally, the female die insert and the female die plate are fixed by screws.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a valve plate finish punching die, because valve line extrusion drift sets up in the die mold insert, the die mold insert combines in the die board with detachable mode, when consequently needing to be changed valve line extrusion drift, only need follow the die board with the die mold insert and detach, alright change in order to take out valve line extrusion drift. And after replacement, the concave die insert is installed in the concave die plate again. The assembling and disassembling structure is simple, and the time for repairing and disassembling the mold is saved.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a top view of a valve plate fine die cavity according to a preferred embodiment of the present invention (without the cavity insert and valve wire extrusion punch installed);

FIG. 2 is a top view of the middle concave mold insert of the present invention;

FIG. 3 is a schematic view (in cross section) of the cavity plate, cavity insert, and valve wire extrusion punch combination;

FIG. 4 is a schematic view of the detached cavity insert and valve wire extrusion punch of FIG. 3;

wherein the reference numerals are as follows:

1. a cavity plate;

2. a concave die insert;

3. a valve wire extrusion punch;

4. a through hole I;

5. a working end;

6. a tail end;

7. an expansion section;

8. a through hole II;

9. caulking grooves;

10. a threaded hole;

11. and (7) installing holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "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 description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to the top view of fig. 1, the valve plate fine blanking die comprises a concave die plate 1, wherein a caulking groove 9 is formed in the concave die plate 1, and other stations (not described in detail) are arranged on the left side of the caulking groove 9.

The insert groove 9 is used for embedding the female die insert 2 shown in fig. 2. The shape of the insert groove 9 matches the shape of the cavity insert 2 to more securely position the cavity insert 2.

As shown in the top view of fig. 2, the die insert 2 is substantially square-plate-shaped, five through holes i 4 are formed in the die insert 2, and mounting holes 11 are formed at four corners of the die insert 2.

As shown in the figure 1, five through holes II 8 are formed in the concave template 1, the through holes II 8 correspond to the through holes I4 (shown in the figure 2) one by one, and the diameter of each through hole II 8 is larger than that of each through hole I4. The cavity plate 1 is further provided with four threaded holes 10, and the threaded holes 10 correspond to the mounting holes 11 (see fig. 2). Through-hole II 8 and screw hole 10 all set up in caulking groove 9 bottom.

As shown in fig. 3 and 4, which are side and cross sectional views, the die insert 2 is inserted into the cavity plate 1, and a valve line pressing punch 3 is inserted into a through hole i 4 of the die insert 2 from the bottom up. The upper end of the valve wire extrusion punch 3 is a working end 5, the lower end is a tail end 6, and an expansion part 7 is arranged on the tail end 6. The diameter of extension portion 7 is slightly bigger, and the diameter of extension portion 7 is greater than the diameter of through-hole I4 for extension portion 7 can not pass through-hole I4, and extension portion 7 supports tightly at die insert 2's lower bottom surface, with the upward die insert 2 that deviates from of prevention valve line extrusion drift 3. The expansion 7 is located in the through hole ii 8. In this example, the valve wire extruding punch 3 is in clearance fit with the through hole I4 at the part located in the through hole I4, and the expanding part 7 is in clearance fit with the through hole II 8. The valve-line extrusion punch 3 is braked by a backing plate (not shown) or other member provided below the cavity plate 1.

The working end 5 at the upper end of the valve wire extruding punch 3 protrudes out of the working surface (upper surface) of the female die insert 2, so that a workpiece can be extruded to form a valve wire groove.

When the cavity insert 2 is embedded in the cavity plate 1, the working surface (upper surface) of the cavity insert 2 and the working surface (upper surface) of the cavity plate 1 are in the same plane, so as to facilitate the placement of a workpiece above.

The thickness of the die insert 2 is less than half (including half) of the thickness of the cavity plate 1 so as not to significantly reduce the strength of the portion of the cavity plate 1 corresponding to the insert groove 9.

The number of the die inserts 2 is not limited, but may be two, three or more.

In this example, the number of the through holes i 4 in a single die insert 2 is five, and the valve wire extruding punches 3 are provided in one-to-one correspondence with the through holes i 4. The number of through holes i 4 of a single female mold insert 2 may also be other, such as one, two, three, four, more than five, etc.

Alternatively, the minimum diameter of each portion of the through hole ii 8 is larger than the maximum outer diameter of the expanded portion 7, so that the valve wire pressing punch 3 can be inserted from below through the through hole ii 8 and the through hole i 4 in this order at the time of initial installation. In other embodiments, the diameter of the lower end of the through hole ii 8 may be smaller than the diameter of the upper end, and the valve wire pressing punch 3 may be inserted into the through hole ii 8 from above.

Referring to fig. 1 and 2, the cavity plate 1 and the cavity plate insert 2 are fixed to each other by screws (not shown) inserted into the mounting holes 11 and the screw holes 10.

When the valve wire extrusion punch 3 needs to be replaced, the female die insert 2 is taken out from the upper part and the valve wire extrusion punch 3 is also taken out at the same time only by disassembling the screws for fixing the female die insert 2 and the female die plate 1. And (3) replacing the valve wire extrusion punch 3, then loading the female die insert 2 into the female die plate 1, and locking the screw. The present embodiment has simple assembling and disassembling structure and saves the time for repairing and removing the mold.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a valve plate fine blanking die which characterized in that, it includes:

a cavity plate (1);

the die insert (2) is provided with at least one die insert, the die insert (2) is detachably arranged in the cavity plate (1), and at least one through hole I (4) is formed in the die insert (2);

valve line extrusion drift (3), valve line extrusion drift (3) set up in through-hole I (4), valve line extrusion drift (3) are gone up and are provided with extension portion (7) for tail end (6) of working end (5), the maximum external diameter of extension portion (7) is greater than the diameter of through-hole I (4), extension portion (7) support tightly the lower bottom surface of die insert (2), lower bottom surface with the working face of die insert (2) is carried on the back mutually, working end (5) protrusion in the working face of die insert (2) of valve line extrusion drift (3).

2. The valve plate fine die cavity die of claim 1, wherein: still be provided with through-hole II (8) on cavity die board (1), through-hole II (8) with through-hole I (4) correspond the setting, extension portion (7) set up in through-hole II (8).

3. The valve plate fine die cavity die of claim 1, wherein: the minimum diameter of each part of the through hole II (8) is larger than the maximum outer diameter of the expansion part (7).

4. The valve plate fine die cavity die of claim 1, wherein: a caulking groove (9) is formed in the concave template (1), and the concave die insert (2) is embedded in the caulking groove (9).

5. The valve plate fine die cavity die of claim 4, wherein: the shape of the caulking groove (9) is matched with that of the concave die insert (2).

6. The valve plate fine die cavity die of claim 4, wherein: the working surface of the concave die insert (2) and the working surface of the concave die plate (1) are in the same plane.

7. The valve plate fine die cavity die of claim 6, wherein: the thickness of the concave die insert (2) is less than half of the thickness of the concave die plate (1).

8. The valve plate fine die cavity die of claim 1, wherein: the valve line extrusion punch heads (3) and the through holes I (4) are arranged in a one-to-one correspondence mode.

9. The valve plate fine die cavity die of claim 1, wherein: the number of the through holes I (4) in the single concave die insert (2) is more than five.

10. The valve plate fine die cavity die of claim 1, wherein: the female die insert (2) and the female die plate (1) are fixed through screws.

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