CN217529386U - Bar material surrounding shearing machine - Google Patents

Abstract

The utility model discloses a bar encircles cutter, characterized in that: the split type die comprises a split type die, wherein an upper half die and a lower half die of the split type die are in a non-closed state before shearing work, bar material through holes are formed in a joint surface of the upper half die and the lower half die of the split type die, and the bar material through holes are distributed in the front-back direction; the front side direction of the split type die is provided with a semicircular shearing knife and a semicircular holding block, the semicircular shearing knife is positioned right above the semicircular holding block, the semicircular shearing knife is pushed by a main oil cylinder to move up and down, and the semicircular holding block is connected with an auxiliary cylinder; when the split type die is used for shearing, the upper half die and the lower half die of the split type die are locked and closed by the locking device, and the semi-circular shearing knife and the semi-circular clamping block clamp the bar tightly and then shear and cut off the bar. The utility model discloses can make the bar cut off the tip more level and smooth, reduce the shearing force, to forging bearing housing material simultaneously, can save process, energy saving.

Description

Bar surrounding shearing machine

Technical Field

The utility model relates to a cutter that is used for bar to cut off.

Background

The long bar stock needs to be cut off by fixed-length shearing, and can be conveniently applied to subsequent industrial processing production. At present, a hydraulic shearing machine is often used for shearing and cutting off a bar stock, and the action process is as follows: firstly, a heated bar extends out of a bar perforation of a die by a certain length, then a semicircular shearing knife is pushed by a hydraulic oil cylinder to quickly move downwards, and the bar extending out of the bar perforation is sheared and cut by a fixed length. In order to reduce the deformation of the end part of the bar when the bar is cut off, the bar is generally heated to about 700 ℃ (if the heating temperature is too high, although the shearing force is small, the cut end part of the bar can generate large deformation), the shearing force needs to be large at this moment, and in fact, the cut end part of the bar still deforms to a certain degree to cause unevenness (the main reasons are that the shearing force is large, the end part of the bar is impacted to cause deformation greatly, the hole diameter of the bar through hole is larger than the outer diameter of the bar in order to facilitate the bar to move through the bar through hole of the die, a gap exists between the bar through hole and the bar through hole, the bar cannot be effectively fixed when the bar is cut off by a shearing knife, and the bar with the uneven end part can cause large waste during subsequent industrial processing and production. In addition, if the cut bars are used to forge a bearing housing, the cut bars are further heated to a temperature required for forging, such as 1200 degrees or more, so as to facilitate the flattening of the bars and the forging of the intermediate hole, which results in a large number of processes and waste of energy.

Disclosure of Invention

In view of the not enough of prior art, the to-be-solved technical problem of the utility model is to provide one kind can make the bar cut off the tip more level and more smooth, reduce the shearing force, to forging bearing housing material simultaneously, can save process, energy saving's bar embraces the cutter.

In order to solve the technical problem, the utility model discloses an adopt following technical scheme to accomplish:

the utility model provides a shearing machine is embraced to bar material which characterized in that: the split type die comprises a split type die, wherein an upper half die and a lower half die of the split type die are in a non-closed state before shearing work, bar perforation holes are formed in a joint surface of the upper half die and the lower half die of the split type die, and the bar perforation holes are distributed in the front-back direction; the front side direction of the split type die is provided with a semicircular shearing knife and a semicircular holding block, the semicircular shearing knife is positioned right above the semicircular holding block, the semicircular shearing knife is pushed by a main oil cylinder to move up and down, and the semicircular holding block is connected with an auxiliary cylinder; when the split type die is used for shearing, the upper half die and the lower half die of the split type die are locked and closed by the locking device, and the semi-circular shearing knife and the semi-circular clamping block clamp the bar tightly and then shear and cut off the bar.

The dead ahead of split type mould is equipped with and keeps off the material pole, keeps off the material pole and makes the flexible activity of fore-and-aft direction, has the bar to target in place the position condition that detection switch detected the material pole.

The locking device comprises a locking block and a locking cylinder, the locking block is connected with the locking cylinder, and the locking cylinder is arranged on a sliding block pushed by the main oil cylinder.

After the technical scheme is adopted, the working process of the bar surrounding shearing machine is as follows: the feeding mechanism pushes a bar forward (the bar can be directly heated to a temperature required by forging, such as 1200 ℃), the end part of the front end of the bar abuts against a stop rod through a bar perforation of the split type die, when the length of the bar extending out of the bar perforation reaches a set value, the bar in-place detection switch sends a signal, the feeding mechanism stops feeding of the bar, the main oil cylinder pushes the slider and the semicircular shearing knife connected to the bottom of the slider to rapidly move downward (at the moment, the push rod of the auxiliary cylinder is ejected outward, the semicircular center of the semicircular clamping block and the semicircular center of the lower half die of the split type die are in a state of equal height and alignment), when the semicircular shearing knife approaches the semicircular clamping block, the locking block of the locking device pushes the upper half die and the lower half die of the split type die in advance to lock and close the bar in the bar perforation, the bar is pressed and fixed in the bar perforation, the semicircular shearing knife approaches the clamping block as the main oil cylinder continues to move downward, the semicircular shearing knife and the bar is clamped by the semicircular clamping block together to clamp the bar tightly, then the energy storage device of the hydraulic system is released, and the main oil cylinder pushes the semicircular knife, the semicircular clamping block and the semicircular shearing knife and the semicircular shearing bar and the semicircular shearing block and the clamped bar together to cut the bar downward. In the shearing and cutting process, the bar stock is directly heated to a higher temperature, the shearing force is smaller, and the semi-circular shearing knife and the semi-circular clamping block are used for clamping the bar stock all the time when the end part of the bar stock is cut off, and the bar stock is effectively compressed and fixed in the bar stock through hole, so that the cut end part of the bar stock is deformed little and is smoother; in addition, when the cut bars are directly applied to forging the bearing shell, the bars do not need to be heated again to the temperature required by forging, such as 1200 ℃, so that the working procedures and the energy are saved; after the bar stock is cut off, the main oil cylinder returns, the locking device loosens the locking of the upper half die of the split die, the upper half die and the lower half die of the split die can be separated from each other, then the feeding mechanism can push the bar stock forward again, the action process is repeated, and the automatic production of the encircling cutting equipment is completed.

Drawings

The utility model discloses there is following figure:

figure 1 is a three-dimensional structure diagram of the utility model,

fig. 2 is a rear view of fig. 1.

Detailed Description

As shown in the figures, the utility model discloses a bar embraces cutter, including split type mould, the first half 5 and the lower half 6 of split type mould are non-closed state before shearing work, be equipped with the spring between first half 5 and the lower half 6 of split type mould, the spring promotes first half 5 upwards to make first half 5, lower half 6 separate each other, lower half 6 is fixed to be set up, first half 5 and lower half 6 of split type mould set up bar perforation 8 on the faying face, bar perforation 8 front and back direction is laid; the front side direction of the split type die is provided with a semicircular shearing knife 4 and a semicircular clamping block 7, the semicircular shearing knife 4 is located right above the semicircular clamping block 7, the semicircular shearing knife 4 is pushed by a main oil cylinder 1 to move up and down, the semicircular shearing knife 4 is connected to the bottom of a sliding block 2, the sliding block 2 is connected with the main oil cylinder 1, the semicircular clamping block 7 is connected with an auxiliary cylinder 14, and the semicircular clamping block 7 is provided with a semicircular clamping surface 71 corresponding to a shearing semicircle 41 of the semicircular shearing knife 4 and used for clamping a passing bar in a surrounding manner; during shearing work, the first half mould 5 and the second half mould 6 of split type mould are locked closed by locking device, locking device includes latch segment 3 and locking jar 13, latch segment 3 is connected with locking jar 13, locking jar 13 is installed on slider 2, the dead ahead of split type mould is equipped with dam device 9, dam device 9 is including the striker rod, the flexible activity of fore-and-aft direction is made to the striker rod, there is the bar to target in place the position condition that detection switch detected the striker rod, semicircle shearing knife 4's front side below is equipped with carries out the ejection of compact baffle 10 of seeing off to the bar that cuts off, ejection of compact baffle 10 department sets up branch flitch 11, branch flitch 11 promotes by minute feed cylinder 12 and divides the material action.

The bar surrounding shearing machine works as follows: the working process is as follows: the feeding mechanism pushes a bar forward (the bar can be directly heated to a temperature required by forging, such as 1200 ℃), the end of the front end of the bar abuts against a stop rod through a bar perforation of the split type die, when the length of the bar extending out of the bar perforation reaches a set value, a bar in-place detection switch sends a signal, the feeding mechanism stops feeding the bar, the main oil cylinder pushes the slider and a semicircular shearing knife connected to the bottom of the slider to rapidly move downward (at the moment, a push rod of the auxiliary cylinder is ejected outward, the semicircular center of the semicircular clamping block and the semicircular center of a lower half die of the split type die are in a state of equal height and alignment), when the semicircular shearing knife approaches the semicircular clamping block, a locking block of the locking device pushes the upper half die and the lower half die of the split type die in advance to lock and close the upper half die and the lower half die, the bar is tightly pressed and fixed in the bar perforation, the semicircular shearing block approaches the semicircular shearing knife as the main oil cylinder continues to move downward, the semicircular shearing knife approaches the clamping block, the semicircular shearing knife and the bar are clamped tightly together, then the energy storage device of the hydraulic system releases, the main oil cylinder pushes the semicircular shearing knife, the semicircular clamping block and the semicircular shearing guide plate and the semicircular shearing knife and the semicircular shearing block and the bar is cut off the bar, and the bar is cut off the bar, and the bar to be separated out through the split type die; and finally, returning the main oil cylinder, releasing the locking of the upper half die of the split die by the locking device, separating the upper half die and the lower half die of the split die, pushing the bar forward by the feeding mechanism again, and repeating the action process to finish the automatic production of the encircling shearing machine.

Claims (3)

1. The utility model provides a bar embraces cutter which characterized in that: the split type die comprises a split type die, wherein an upper half die and a lower half die of the split type die are in a non-closed state before shearing work, bar perforation holes are formed in a joint surface of the upper half die and the lower half die of the split type die, and the bar perforation holes are distributed in the front-back direction; the front side of the split type die is provided with a semicircular shearing knife and a semicircular holding block, the semicircular shearing knife is positioned right above the semicircular holding block, the semicircular shearing knife is pushed by a main oil cylinder to move up and down, and the semicircular holding block is connected with an auxiliary cylinder; when the split type die is used for shearing, the upper half die and the lower half die of the split type die are locked and closed by the locking device, and the semi-circular shearing knife and the semi-circular clamping block clamp the bar tightly and then shear and cut off the bar.

2. The rod embracing shear of claim 1, wherein: the dead ahead of split type mould is equipped with and keeps off the material pole, keeps off the material pole and makes the flexible activity of fore-and-aft direction, has the bar to target in place the position condition that detection switch detected the material pole.

3. A rod embracing shear according to claim 1 or 2, wherein: the locking device comprises a locking block and a locking cylinder, the locking block is connected with the locking cylinder, and the locking cylinder is arranged on a sliding block pushed by the main oil cylinder.

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