CN214556515U - Bending die follow-up fixture - Google Patents

Abstract

The utility model relates to a bending die follower fixture, which comprises an upper clamping die, a lower clamping die, a follower fixture, a mandril, a first steel ball and a plurality of second steel balls, the lower plane of the upper clamping die is provided with an upper clamping die bending pushing groove, the upper plane of the lower clamping die is provided with a lower clamping die bending pushing groove, the upper clamping die bending pushing groove and the lower clamping die bending pushing groove correspond to each other and form a product bending cavity together, the follower fixture comprises an upper pressing block and a lower pressing block, the upper pressing block and the lower pressing block are arranged correspondingly to each other and form a workpiece clamping hole together, the upper pressing block and the lower pressing block are arranged in the upper clamping die and the lower clamping die, the first steel ball and the second steel ball can roll in the product bending cavity and can pass through the workpiece clamping hole under the action of the ejector rod, the bending pushing die follow-up fixture is high in bending pushing and positioning accuracy, convenient to operate, simple in structure and suitable for elbow products with small bent pipe angles and short straight line segment distances.

Description

Bending die follow-up fixture

The technical field is as follows:

the utility model relates to a tooling die technical field especially relates to a push away bending die retinue anchor clamps.

Background art:

the elbow products are different according to different action occasions, the lengths and the pushing angles of the elbow products are different, and for some elbow products with small elbow angles and short straight-line segment distances, a machining reference is difficult to find after pushing and bending machining, so that the machining precision of a subsequent procedure is influenced, and the product quality is further influenced.

In the prior art, a bending die tool for elbow products with small elbow angle and short straight-line segment distance generally has two problems, namely, the clamping and bending precision is not high; secondly, the structural part is complicated and the operation is complicated.

The utility model has the following contents:

to the above problem, the utility model provides a push away bending die retinue anchor clamps that bends and positioning accuracy is high, convenient operation, simple structure and be applicable to the elbow class product that the return bend angle is little and the straightway distance is short.

The utility model discloses a realize through following technical scheme: the utility model provides a push-bending die pallet, includes clamp mould, lower clamp mould, pallet, ejector pin, first steel ball and a plurality of second steel ball on, the clamp mould push-bending groove has been seted up on the lower plane of last clamp mould, the clamp mould push-bending inslot has the spacing step of last clamp mould, the clamp mould push-bending groove has been seted up down on the upper plane of lower clamp mould, the clamp mould push-bending inslot down with the spacing step of last clamp mould corresponds the position and has the spacing step of clamp mould down, go up clamp mould push-bending groove with the clamp mould push-bending groove corresponds and forms product push-bending die cavity jointly, and the bending angle that the product pushed-bending die cavity is the required angle of elbow product promptly.

The follower fixture is arranged in the upper clamping die and the lower clamping die and comprises an upper pressing block and a lower pressing block, the upper pressing block and the lower pressing block are correspondingly arranged with each other and jointly form a workpiece clamping hole for clamping an elbow product, the upper pressing block and the lower pressing block are arranged in the upper clamping die and the lower clamping die, the first steel ball and the second steel ball can roll in the product bending cavity and can pass through the workpiece clamping hole under the action of the ejector rod, the first steel ball is used for shaping and correcting the elbow product, the second steel ball is used for pushing out the first steel ball, and the ejector rod can push the first steel ball and the second steel ball.

In order to achieve the best product reshaping and correcting effect, the diameter of the first steel ball is equal to or slightly smaller than the inner diameter of the elbow product.

In order to facilitate pushing out the first steel ball, preferably, the diameter of the second steel ball is smaller than that of the first steel ball.

The utility model has the advantages that: this push away curved mould pallet, through the design on press from both sides the mould, pallet and the cooperation of steel ball, realized the elbow class product that the return bend angle is little and the straightway distance is short push away curved processing, simultaneously, solved the problem that later process is difficult to find the processing benchmark effectively, in addition, should push away curved mould pallet, simple structure, convenient to use.

Description of the drawings:

fig. 1 is a schematic structural view of a bending die follow fixture of the present invention;

fig. 2 is a schematic structural view of the bending die follower fixture of the present invention after the upper clamping die is hidden;

fig. 3 is a schematic structural view of the bending die follower fixture of the present invention after the upper clamping die and the lower clamping die are hidden;

fig. 4 is a schematic structural view of an upper clamping die of the bending die following fixture of the present invention;

fig. 5 is a schematic structural view of the lower clamping die of the bending die follower fixture of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

As shown in fig. 1, the bending die pallet includes an upper clamping die 1, a lower clamping die 2, a pallet 3, a mandrel 4, a first steel ball 5 and a plurality of second steel balls 6, an upper clamping die bending groove 11 is formed on a lower plane of the upper clamping die 1, an upper clamping die limiting step 12 is arranged in the upper clamping die bending groove 11, a lower clamping die bending groove 21 is formed on an upper plane of the lower clamping die 2, a lower clamping die limiting step 22 is arranged in the lower clamping die bending groove 21 and corresponds to the upper clamping die limiting step 12, the upper clamping die bending groove 11 and the lower clamping die bending groove 21 correspond to each other and jointly form a product bending cavity 7, the product bending cavity 7 has an angle required by an elbow product, the pallet 3 is arranged in the upper clamping die 1 and the lower clamping die 2 and includes an upper pressing block 31 and a lower pressing block 32, the upper pressing block 31 and the lower pressing block 32 are arranged correspondingly to each other and jointly form a workpiece clamping hole 8, the first steel ball 5 and the second steel ball 6 can roll in the product bending cavity 7 and can pass through the workpiece clamping hole 8 under the action of the ejector rod 4, the diameter of the first steel ball 5 is equal to or slightly smaller than the inner diameter of an elbow product, and the diameter of the second steel ball 6 is smaller than that of the first steel ball 5.

When the bending die following fixture is used for carrying out product bending operation, firstly, a workpiece 9 to be bent is placed into a lower clamping die bending groove 21 of a lower clamping die 2 under the state that the upper clamping die 1 and the lower clamping die 2 are opened, the upper clamping die 1 is covered, and the upper clamping die 1 and the lower clamping die 2 are closed.

Then, starting the oil cylinder to push the ejector rod 4, pushing the workpiece 9 to the upper die clamping limiting step 12 and the lower die clamping limiting step 22 by the ejector rod 4, at the moment, primarily pushing and bending the workpiece 9 to form and push the workpiece into the follower fixture 3, putting the first steel ball 5 into the ejector rod 4 after the ejector rod 4 retracts to push the ejector rod 4 to the first steel ball 5 to pass through the cavity of the workpiece 9 again, so as to shape and correct the workpiece 9, sequentially pushing the second steel ball 6 according to the steps, and pushing the first steel ball 5 out.

Then, the carrier rod 4 is retracted, the upper clamp 1 is opened, and the pallet 3 with the workpiece 9 is taken out to the subsequent process.

And finally, after all the machining processes are finished, opening the bolts on the follower fixture 3, opening the upper pressing block 31 and taking out the workpiece 9.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", 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.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (2)

1. The utility model provides a push away bending die retinue anchor clamps which characterized in that: comprises an upper clamping die (1), a lower clamping die (2), a following fixture (3), a push rod (4), a first steel ball (5) and a plurality of second steel balls (6), wherein an upper clamping die bending groove (11) is formed in the lower plane of the upper clamping die (1), an upper clamping die limiting step (12) is arranged in the upper clamping die bending groove (11), a lower clamping die bending groove (21) is formed in the upper plane of the lower clamping die (2), a lower clamping die limiting step (22) is arranged in the lower clamping die bending groove (21) and corresponds to the upper clamping die limiting step (12), a product bending cavity (7) is formed in the upper clamping die bending groove (11) and the lower clamping die bending groove (21) correspondingly and jointly, the product bending cavity (7) has a required angle of an elbow product, the following fixture (3) is arranged in the upper clamping die (1) and the lower clamping die (2) and comprises an upper pressing block (31) and a lower pressing block (32), the upper pressing block (31) and the lower pressing block (32) are arranged correspondingly to each other and form a workpiece clamping hole (8) together, and the first steel ball (5) and the second steel ball (6) can roll in the product bending cavity (7) and can pass through the workpiece clamping hole (8) under the action of the ejector rod (4).

2. The push-bend die pallet of claim 1, wherein: the diameter of the first steel ball (5) is equal to or slightly smaller than the inner diameter of an elbow product, and the diameter of the second steel ball (6) is smaller than that of the first steel ball (5).

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