CN101391374B - A hydraulic press slider travel limit device - Google Patents

Abstract

The invention belongs to the technical field of hydraulic presses, and in particular relates to a stroke limiting device for a slider of a hydraulic press. In the present invention, one end of the slider is fixedly connected to the vertical rod, and the upper and lower ends of the vertical rod are respectively provided with an upper collision block and a lower collision block, and the upper collision block and/or the lower collision block can move along the axial direction of the vertical rod, A limiting piece for preventing the movement of the slider is arranged between the upper and lower collision blocks. When the slider moves up and down, the vertical rod connected with it moves up and down at the same time, and when the upper or lower collision block touches the limit piece, the slider stops moving. Since the upper impact block and/or the lower impact block can move along the axial direction of the pole, the staff can adjust the distance between the upper impact block and the lower impact block at any time according to the actual working conditions, so as to adapt to the various working conditions of the slider. Conditions of work schedule. The invention is simple in structure, easy to operate, and convenient to adjust the stroke of the slide block, thereby greatly improving the processing and production efficiency.

Description

A hydraulic press slider travel limit device

technical field

The invention belongs to the technical field of hydraulic presses, and in particular relates to a stroke limiting device for a slider of a hydraulic press.

Background technique

At present, in small and medium-sized single-column hydraulic presses, the stroke limit of the hydraulic press slider is usually electronically controlled. This control method is not convenient for the staff to process and operate the press-fitting process of the shaft sleeve parts. Therefore, it is necessary to modify the existing The technology is improved to provide an easy-to-operate stroke limiting device suitable for the press-fitting process of shaft sleeve parts.

Contents of the invention

The object of the present invention is to provide a hydraulic press slide block stroke limiting device, which has a simple structure, is easy to operate, and can conveniently adjust the slide block stroke, thus greatly improving the processing and production efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions: a hydraulic press slider travel limit device, one end of the slider is fixedly connected with the vertical rod, and the upper and lower ends of the vertical rod are respectively provided with an upper bumper and a lower bumper. block, the upper collision block and/or the lower collision block can move along the axial direction of the vertical rod, and a limit piece to prevent the movement of the slider is arranged between the upper and lower collision blocks.

It can be seen from the above technical scheme that the present invention is provided with an upper bumper and a lower bumper on the vertical rod beside the slider. When the slider moves up and down, the slider simultaneously drives the vertical rod fixed to it to move up and down. When the lower collision block touches the limit piece, the slide block stops moving. It can be seen that the distance between the upper collision block and the lower collision block is also the working stroke of the slider. Since the upper collision block and/or the lower collision block can move along the axial direction of the pole, the staff can adjust the distance between the upper collision block and the lower collision block at any time according to the actual working conditions. To adjust the distance between the upper collision block and the lower collision block, so as to adapt to the working stroke of the slider under various working conditions, it can be seen that the present invention is simple in structure, easy to operate, and can conveniently adjust the stroke of the slider , thus greatly improving the processing efficiency.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the present invention when the upper collision block touches the limiting member.

Detailed ways

As shown in Figure 1, a hydraulic press slider travel limiting device, one end of the slider 10 is fixedly connected to the vertical rod 20, the upper and lower ends of the vertical rod 20 are respectively provided with an upper collision block 21 and a lower collision block 22, The upper collision block 21 and/or the lower collision block 22 can move along the axial direction of the vertical rod 20 , and a limiting member 30 is arranged between the upper and lower collision blocks 21 , 22 to prevent the movement of the slider 10 .

The setting direction of the vertical rod 20 can be vertical or inclined. As a preferred solution of the present invention, the axial direction of the vertical rod 20 is set to be parallel to the moving direction of the slider 10, and the position limiting Part 30 is a limit switch.

When the axial direction of the vertical rod 20 is parallel to the moving direction of the slider 10, the axial direction of the vertical rod 20 is completely consistent with the moving direction of the sliding block 10, which is beneficial to better control the working stroke of the sliding block 10. Mediation. When the upper bumper 21 or the lower bumper 22 touches the limit switch, the limit switch will act, the hydraulic pump will be closed or the electromagnetic reversing valve will be shifted and reversed, and finally the piston and slider 10 will stop moving. The position member 30 can also be set as a connecting rod connected with the hydraulic control system.

The vertical rod 20 can be arranged at any position that does not hinder the operation of the slider 10. As a preferred solution of the present invention, as shown in FIGS. The lower shaft of the rod 20 is fixedly connected with the slider 10 through the connecting piece 11 .

The upright bar 20 is arranged through the upper beam 40, which is beneficial to reduce the occupied space of the present invention, and can also protect the upright bar 20 from being touched, which is beneficial to the stable operation of the slider 10 and the upright bar 20.

In order to better protect the stable operation of the pole 20, as shown in Figures 1 and 2, the pole 20 is sleeved in the sheath 50, the upper collision block 21 is arranged on the upper side of the pole 20, and the sheath 50 The upper side of the upper side is provided with a groove 51 to facilitate the movement of the upper collision block 21 along the axial direction of the vertical rod 20 , and the lower collision block 22 is fixed on the vertical rod 20 or the sheath 50 .

Since the upper side of the sheath 50 is provided with a groove 51, the upper collision block 21 can protrude from the outside of the groove 51 so as to collide with the stopper 30; meanwhile, the upper collision block 21 can move axially along the vertical rod 20, and The lower bumper 22 is set to be fixedly connected with the vertical rod 20 or the sheath 50, which reduces the workload of adjusting the working stroke, and also ensures that the connection between the various components is relatively stable.

There are many ways to realize that the upper collision block 21 can move axially along the vertical rod 20. For example, the upper collision block 21 and the vertical rod 20 are set to slide and fit, and the upper collision block 21 is fastened on the vertical rod 20 by screws. When the collision block 21 is moved, the screw is loosened and the upper collision block 21 is moved to a suitable position along the vertical rod 20 and then fixed again.

As a preferred solution of the present invention, as shown in FIGS. 1 and 2 , the vertical rod 20 and the upper bumper 21 are screwed together.

Now only need to rotate the vertical rod 20, the upper collision block 21 will move up and down along the axial direction of the vertical rod 20, and correspondingly, the lower collision block 22 should be fixed on the sheath 50.

As another preferred solution of the present invention, as shown in Figures 1 and 2, the outer side of the sheath 50 is provided with a guide cylinder 60 that is slidingly fitted with it, and the guide cylinder 60 is clamped in the opening 41 of the upper beam 40 superior.

The setting of the guide cylinder 60 can guide the vertical rod 20 and the sheath 50 to smoothly pass through the opening 41 on the upper beam 40 during the up and down movement, which is beneficial to the stable operation of the vertical rod 20 and the slider 10 .

As shown in Figures 1 and 2, the upper end of the vertical rod 20 protrudes outside the sheath 50, the sheath 50 is provided with an end cover 52 where the vertical rod 20 protrudes, and the lower end of the vertical rod 20 is connected and fixed with a connecting rod 23 , the lower end of the connecting rod 23 protrudes outside the sheath 50 and is connected to the slider 10 , and the part of the connecting rod 23 inside the sheath 50 forms an abutting fit and a sliding fit with the sheath 50 .

The lower end of the vertical rod 20 is provided with a connecting rod 23, which can reduce the overall length of the rod, which is beneficial to the processing and manufacturing of the rod, and also reduces the production cost; Form abutting fit and sliding fit, so when rotating the connecting rod 23, although the connecting rod 23 drives the vertical rod 20 to rotate and makes the upper collision block 21 move up and down, the vertical rod 20 and the connecting rod 23 do not move up and down, but It is only rotated in the original position.

As shown in Figures 1 and 2, the upper side of the guide cylinder 60 is provided with a protruding ring platform. The outer diameter of the cylinder body at the position is greater than the inner diameter of the opening 41 of the upper beam 40 , and the guide cylinder 60 is arranged between the limiting member 30 and the lower bumper 22 .

The above-mentioned setting of the guide cylinder 60 on the shape allows the end with a larger diameter of the guide cylinder to be arranged inside the upper beam 40, that is, the guide cylinder 60 is stuck on the opening 41 of the upper beam 40 so as not to fall down. 10 drives the vertical rod 20 to go up, and when the lower bumper 22 moves to abut against the lower end surface of the guide cylinder 60, the guide cylinder 60 also follows the slider 10 to move upward until the upper end surface of the guide cylinder 60 collides with the stopper 30, and slides Block 10 stops running.

As a further preferred solution of the present invention, the upper end of the vertical rod 20 or the lower end of the connecting rod 23 is provided with a rotating handle 70 to drive it to rotate.

As shown in Figures 1 and 2, the rotating handle 70 includes a rotating wheel 71 fixed at the end of the vertical pole 20, and the rotating wheel 71 is provided with a handle 72 which is convenient for human hands to hold.

Below in conjunction with Fig. 1, 2, the operation of the present invention is further explained:

The operator first shakes the handle 72 to rotate the connecting rod 23 and drive the vertical rod 20 to rotate, so that the upper collision block 21 moves up and down on the vertical rod 20 until it moves to the required stroke and stops; then starts the hydraulic press to move the piston downward , the vertical rod 20, the connecting rod 23 and the sheath 50 also move downwards in the guide cylinder 60. When the upper bumper 21 is in contact with the stopper 30, the stopper 30 controls the hydraulic system to stop the piston from moving. , while the slider 10 also stops moving.

Claims (7)

1. A hydraulic press slide block stroke limiter is characterized in that: one end of the slide block (10) is fixedly connected with the vertical rod (20), and the upper and lower ends of the vertical rod (20) are respectively provided with an upper collision block ( 21) and the lower collision block (22), the upper collision block (21) and/or the lower collision block (22) can move along the axial direction of the vertical rod (20), and the upper and lower collision blocks (21, 22) are arranged between There is a limit piece (30) to prevent the movement of the slider (10); the vertical rod (20) is sleeved in the sheath (50), and the upper collision block (21) is arranged on the upper side of the vertical rod (20). The upper side of the sheath (50) is provided with a groove (51) to facilitate the axial movement of the upper bumper (21) along the vertical rod (20), and the lower bumper (22) is fixed on the vertical rod (20) or On the sheath (50); the outer side of the sheath (50) is provided with a guide cylinder (60) for sliding fit with it, and the guide cylinder (60) is clamped on the opening (41) of the upper beam (40) ; The upper side of the guide tube (60) is provided with a protruding ring platform, and the outer diameter of the lower side of the guide tube (60) matches the inner diameter of the opening (41) of the upper beam (40). The outer diameter of the cylinder body at the platform is greater than the inner diameter of the opening (41) of the upper beam (40), and the guide cylinder (60) is arranged between the limiter (30) and the lower collision block (22), and the guide cylinder (60 ) is provided with a protruding ring platform located inside the upper beam (40). 2. The stroke limiting device of the hydraulic press slider according to claim 1, characterized in that: the axial direction of the vertical rod (20) is set to be parallel to the moving direction of the slider (10), and the limiter Position piece (30) is a limit switch. 3. The hydraulic press slider travel limit device according to claim 1 or 2, characterized in that: the vertical rod (20) runs through the body of the upper beam (40) from top to bottom, and the vertical rod (20) The lower shaft is fixedly connected with the slider (10) through the connecting piece (11). 4. The stroke limiting device of the hydraulic press slider according to claim 1, characterized in that: the vertical rod (20) and the upper impact block (21) are screwed together. 5. The stroke limiting device of the hydraulic press slider according to claim 1, characterized in that: the upper end of the vertical rod (20) protrudes from the outer side of the sheath (50), and the sheath (50) is mounted on the vertical rod (20). ) is provided with an end cover (52) at the extension, the lower end of the vertical rod (20) is connected and fixed with a connecting rod (23), and the lower end of the connecting rod (23) stretches out from the outer side of the sheath (50) and is connected with the slide block (10) In connection with each other, the part of the connecting rod (23) located in the sheath (50) forms an abutting fit and a sliding fit with the sheath (50). 6. The hydraulic press slider stroke limiter according to claim 1, characterized in that: the upper end of the vertical rod (20) or the lower end of the connecting rod (23) is provided with a turning handle (70) for driving its rotation . 7. The stroke limiting device of the hydraulic press slider according to claim 6, characterized in that: the said turning handle (70) is arranged at the lower end of the connecting rod (23), and the turning handle (70) includes a part fixed on the connecting rod ( 23) the runner (71) at the lower end, the runner (71) is provided with a handle (72) that is convenient for people to hold.

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