CN209379717U - A Knife Feed Adjustment Mechanism for a Bending Machine - Google Patents

Abstract

The utility model relates to the field of bending machines, and specifically discloses a feed adjustment mechanism for bending machines, which includes a number of scale lines uniformly distributed along the axial direction of the connecting rod and a limit block fixed on the frame. The side of the block and the connecting rod provided with the scale line is arranged oppositely, and the top surface or the bottom surface of the limit block is a horizontal plane. The feed adjustment mechanism for the bending machine in this solution can measure the downward sliding distance of the bending knife, so as to close the driving part in time and adjust the feed amount of the bending knife.

Description

A Knife Feed Adjustment Mechanism for a Bending Machine

technical field

The utility model relates to the field of bending machines, in particular to a knife feed adjustment mechanism of a bending machine.

Background technique

A bending machine is a machine that can process a workpiece and bend it. The bending machine generally includes a frame, a workbench, a clamping part, a driving part and a bending knife. A connecting rod is fixed on the driving part, and the bending knife and the connecting rod are fixed. The driving part moves the bending knife by driving the connecting rod. When processing the workpiece, the workpiece is first placed on the workbench, and then the clamping part is used to clamp the side of the workpiece away from the part to be bent. The part is pressurized, so that the workpiece is gradually bent, and finally bent into a right angle. However, in actual production, not all workpieces need to be bent into a right angle, and some workpieces only need to be bent into an acute angle. Therefore, the driving member needs to be turned off before the workpiece is bent into a right angle. However, the workpiece has a certain thickness, and it is difficult to accurately measure the bending angle of the workpiece during the bending process, so that the driving part cannot be closed in time, so the bending angle error of the workpiece is large.

Utility model content

The purpose of the utility model is to provide a feed adjustment mechanism for a bending machine that can close the driving part in time, thereby reducing the angle error of the bending of the workpiece.

In order to achieve the above purpose, the technical solution of the utility model is: a feed adjustment mechanism for a bending machine, including a number of scale lines uniformly distributed along the axial direction of the connecting rod and a limit block fixed on the frame, limiting The position block is arranged opposite to the side on which the scale line is provided with the connecting rod, and the top or bottom surface of the limit block is a horizontal plane.

The principles and beneficial effects of this program are as follows:

When the bending knife is in contact with the workpiece to be bent, the bending knife continues to slide downward to gradually bend the workpiece to be bent, and the distance that the bending knife continues to slide down corresponds to the bending angle of the workpiece relationship, that is, when the bending knife continues to slide down for a small distance, the bending angle of the workpiece is small; Bend at right angles. For several identical workpieces, this corresponding relationship is fixed, so the bending angle of the workpiece can be controlled by controlling the distance that the bending knife continues to slide down.

When the driving part moves the bending knife, the connecting rod also moves synchronously. In this solution, since the limit block is fixed to the frame, the connecting rod moves relative to the limit block when moving, and the distance moved by the connecting rod can be accurately judged by the scale line on the connecting rod, thereby adjusting the feeding of the bending knife. When the bending knife moves to a predetermined distance, closing the driving part can ensure that the bending angle of the workpiece meets the requirements, thereby reducing the angle error of the bending of the workpiece.

In preferred solution 1, as a further improvement to the basic solution, the limit block is ring-shaped and located on the outer circumference of the connecting rod, and the scale line is ring-shaped.

The beneficial effect of this solution is that no matter which side the worker is on the bending machine, the moving distance of the bending knife can be judged through the scale line, so as to close the driving part in time.

In the second preferred solution, as a further improvement to the first preferred solution, the projection of the limit block along the axial direction of the connecting rod falls on the bending knife.

The beneficial effect of this scheme is: after the bending is completed, when the driving part moves the bending knife to the side away from the workpiece, the movement of the bending knife is limited by the limit block, thereby avoiding the bending knife and the workpiece to be processed. If the distance is too large, it will take more time to contact the workpiece during reprocessing. This solution can reduce the time required for the bending knife to move to contact with the workpiece and improve processing efficiency.

In the third preferred option, as a further improvement on the second preferred option, the outer wall of the limiting block is a cylindrical surface.

The beneficial effect of the solution is that the side wall of the limiting block has no edges, which prevents workers from colliding with the edges and being injured.

The fourth preferred option, as a further improvement to the third preferred option, the connecting rod is provided with a scale value corresponding to the scale line.

The beneficial effect of this solution is that the distance of the bending knife to continue to move can be quickly determined through the scale value.

In the fifth preferred solution, as a further improvement on the fourth preferred solution, the distance between the inner wall of the limiting block and the outer wall of the connecting rod is 0.1-0.3 cm.

The beneficial effect of this solution is: the limit block and the connecting rod leave a gap, so as to avoid the contact between the connecting rod and the limit block during the moving process and wear.

In the sixth preferred solution, as a further improvement to the fifth preferred solution, a buffer layer is fixed on the end face of the limit block facing the bending knife.

The beneficial effect of this scheme is: after the bending is completed, the driving part moves the bending knife to the side away from the workpiece. When the moving distance of the bending knife is relatively large, the bending knife collides with the limit block. The buffer layer can act as a buffer to avoid damage to the bending knife and the limit block.

In the seventh preferred solution, as a further improvement on the sixth preferred solution, the buffer layer is a rubber sheet.

The beneficial effect of the solution is: compared with the sponge, the service life of the rubber sheet is longer.

In the eighth preferred solution, as a further improvement to the seventh preferred solution, a magnifying glass is fixed on the limiting block, and the middle part of the magnifying glass is at the same height as the end of the limiting block away from the bending knife.

The beneficial effect of this scheme is: the magnifying glass is facing the top surface of the limit block, and the magnifying glass can enlarge the top surface of the limit block and the scale line, which is convenient for workers to observe whether the top surface of the limit block is aligned with the scale line that needs to be aligned, thereby avoiding bending The distance the knife moves down is too large, causing the workpiece to bend at an excessive angle.

Description of drawings

Fig. 1 is the front view of the utility model embodiment;

FIG. 2 is a top view of FIG. 1 .

Detailed ways

The following is further described in detail through specific implementation methods:

The reference signs in the drawings of the description include: connecting rod 1, bending knife 2, scale line 3, scale value 31, limit block 4, buffer layer 41, magnifying glass 42, horizontal rod 43, and outer frame 44.

Embodiment is shown in Figure 1 basically:

A knife-feed adjustment mechanism for a bending machine comprises a plurality of scale marks 3 uniformly distributed along the axial direction of a connecting rod 1 and a limit block 4 fixed on a machine frame. The connecting rod 1 is vertically arranged, and the bending knife 2 is fixed to the bottom end of the connecting rod 1, and the driving part is fixed to the top end of the connecting rod 1. The top surface or the bottom surface of the limiting block 4 is a horizontal plane, and both the top surface and the bottom surface of the limiting block 4 in this embodiment are horizontal planes. And when the bending knife 2 is in contact with the workpiece to be bent, the bottommost scale line 3 is just aligned with the top surface of the limit block 4, several scale lines 3 are ring-shaped, and the bottommost scale line 3 places are connected to each other. The scale value 31 "0" is marked on the rod 1, and from bottom to top, every four scale marks 3, the scale value 31 "5", "10", "15" is marked on the connecting rod 1 in turn...

The limiting block 4 in this embodiment is circular, that is, the outer wall of the limiting block 4 is a cylindrical surface, and the corners between the side wall of the limiting block 4 and the top surface and the bottom surface are rounded, thereby avoiding the occurrence of edges and corners. The distance between the inner wall of the limit block 4 and the side wall of the connecting rod 1 is 0.1 to 0.3 cm. In this embodiment, 0.1 cm is selected, and the limit block 4 is not in contact with the connecting rod 1, so that when the connecting rod 1 moves, the connecting rod 1 Relative sliding occurs with the limit block 4 and wears out. The projection of the side wall of the limit block 4 along the vertical direction falls on the bending knife 2, and the limit block 4 faces the side wall of the bending knife 2, that is, the bottom wall of the limit block 4 is fixed with a buffer layer 41 by glue , The buffer layer 41 can be a sponge block or a rubber sheet, and the rubber sheet is selected in this embodiment.

The side wall of the limiting block 4 is welded with a horizontal rod 43 along the horizontal direction, and the end of the horizontal rod 43 away from the limiting block 4 is welded with an outer frame 44, and the inner periphery of the outer frame 44 is embedded with a magnifying glass 42, and the upper end of the magnifying glass 42 is higher than the top of the limiting block 4 On the other hand, workers can observe the scale line 3 more clearly through the magnifying glass 42. As shown in Figure 2, the projection of the magnifying glass 42 in the vertical direction falls outside the bending knife 2, so the bending knife 2 will not contact the magnifying glass 42 when it moves to the side close to the limit block 4 under the action of the driving member. Avoid damage to the magnifying glass 42 .

When the bending knife 2 bends the workpiece, after the bending knife 2 contacts the part to be bent of the workpiece, there is a certain correspondence between the distance that the bending knife 2 continues to slide down and the bending angle of the workpiece. , that is, for workpieces of the same type, this corresponding relationship is fixed, so the bending angle of the workpiece can be controlled by controlling the distance that the bending knife 2 continues to slide downward.

The specific adjustment process of the feed adjustment mechanism of the present embodiment to the bending knife 2 is as follows:

As shown in Figure 1, during the downward movement of the bending knife 2 driven by the driving member, the worker observes the scale line 3 aligned with the top surface of the limit block 4 through the magnifying glass 42, and then touches the bending knife 2 with the workpiece to be bent. It is necessary to move down again by 0.3cm as an example. When the scale line 3 marked "0" is aligned with the top surface of the limit block 4, the fourth scale line 3 from bottom to top is aligned with the top surface of the limit block 4. When closing the driving member, the bending knife 2 stops moving downward.

After the workpiece is bent, during the upward sliding process of the bending knife 2 by the driving part, when the top of the bending knife 2 is in contact with the buffer layer 41, the driving part is closed to avoid the excessive upward sliding distance of the bending knife 2. During processing, it takes too long to slide down to improve processing efficiency.

What is described above is only the preferred embodiment of the present utility model. It should be pointed out that for those skilled in the art, some deformations and improvements can also be made without departing from the concept of the present utility model. These should also be regarded as The protection scope of the utility model, these all can not affect the effect that the utility model implements and the practicability of the patent. The technology, shape and construction parts omitted in the utility model are all known technologies.

Claims (9)

1. a kind of feed regulating mechanism for bending machine, it is characterised in that: including along the axial uniformly distributed several graduation marks of connecting rod With the limited block being fixed on the rack, the side that the limited block is equipped with graduation mark with connecting rod is oppositely arranged, the limited block Top surface or bottom surface are horizontal plane.

2. the feed regulating mechanism according to claim 1 for bending machine, it is characterised in that: the limited block is ring-type And it is located at the periphery of connecting rod, the graduation mark is annular.

3. the feed regulating mechanism according to claim 2 for bending machine, it is characterised in that: the limited block is along connecting rod Axial projection is fallen on bending tool.

4. the feed regulating mechanism according to claim 3 for bending machine, it is characterised in that: the limited block outer wall is Cylindrical surface.

5. the feed regulating mechanism according to claim 4 for bending machine, it is characterised in that: connecting rod is equipped with and scale The corresponding scale value of line.

6. the feed regulating mechanism according to claim 5 for bending machine, it is characterised in that: the limited block inner wall with The distance between connecting rod outer wall is 0.1~0.3cm.

7. the feed regulating mechanism according to claim 6 for bending machine, it is characterised in that: the limited block direction folding The end face of tulwar is fixed with buffer layer.

8. the feed regulating mechanism according to claim 7 for bending machine, it is characterised in that: the buffer layer is rubber Piece.

9. the feed regulating mechanism according to claim 8 for bending machine, it is characterised in that: fixed on the limited block There is magnifying glass, the magnifying glass middle part and limited block are contour far from bending tool one end.