CN215473250U - Small-table-board large-tonnage hydraulic machine - Google Patents

Abstract

The utility model relates to a small-table-board large-tonnage hydraulic machine which comprises a left upright post and a right upright post, wherein the tops of the left upright post and the right upright post are connected through an upper cross beam, the bottoms of the left upright post and the right upright post are connected with a workbench, a sliding block is arranged between the upper cross beam and the workbench, a main cylinder is arranged at the center of the upper cross beam, the lower end of a piston rod of the main cylinder is connected with the center of the top of the sliding block, side cylinders are symmetrically arranged at the left side and the right side of the upper cross beam, sliding block lug seats are symmetrically arranged at the left side wall and the right side wall of the sliding block, and the lower ends of the piston rods of the side cylinders are respectively connected with the sliding block lug seats; the middle parts of the front side wall and the rear side wall of the upper cross beam are symmetrically provided with an upper safety bolt support, the front side wall and the rear side wall of the sliding block are symmetrically provided with a lower safety bolt support, and the lower safety bolt support is matched with the upper safety bolt support on the same side. The slider ear seat comprises an ear seat vertical plate and an ear seat transverse plate, and a wedge-shaped block is arranged between the top of the ear seat vertical plate and the top of the slider caulking groove. The hydraulic press has the advantages that the length of the table top can be shortened by half on the basis of keeping a large tonnage, the processing difficulty of parts is small, and the manufacturing cost is low.

Description

Small-table-board large-tonnage hydraulic machine

Technical Field

The utility model relates to a hydraulic machine, in particular to a small-table-board large-tonnage hydraulic machine, and belongs to the technical field of hydraulic machines.

Background

The hydraulic press comprises a left upright and a right upright, the tops of the left upright and the right upright are connected through an upper cross beam, the bottoms of the left upright and the right upright are connected with a workbench, a sliding block is arranged between the upper cross beam and the workbench, and a main cylinder is arranged at the center of the upper cross beam. For large-tonnage hydraulic machines of more than 2000 tons, side main cylinders are also symmetrically arranged on two sides of a main cylinder, the main cylinder and the side main cylinders are arranged in an upper cross beam, and the lower end surfaces of piston rods of the main cylinders are respectively connected to the tops of sliding blocks.

The hydraulic press needs to carry out operations such as die change, safety maintenance and die repair under the shutdown state, needs to stop the slider at the upper limit position, and operating personnel needs to get into between slider and the workstation, in order to ensure that the slider can not fall and cause the incident, needs to put into between slider and the workstation with the safety cock, undertakes the effect of safety support. The upper bracket of the safety bolt is fixed on the lower plane of the upper cross beam, and the lower bracket of the safety bolt is fixed on the upper plane of the sliding block.

The upper plane of the sliding block needs to be large enough to meet the installation space of the piston rods of the main cylinder and the side main cylinder and the lower bracket of the safety bolt. Taking a 3000-ton hydraulic press as an example, a conventional hydraulic press with a minimum slide size of 3800mm 1800mm, i.e., a table smaller than 3800mm 1800mm, cannot be equipped with 3000-ton cylinders. For the processing of workpieces which need large-tonnage pressing but do not need a large-table-top workbench, the weight and the volume of the equipment are increased, and the manufacturing cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problems in the prior art and provide a hydraulic machine with a small table top and a large tonnage.

In order to solve the technical problems, the small-table-board large-tonnage hydraulic machine comprises a left upright post and a right upright post, wherein the tops of the left upright post and the right upright post are connected through an upper cross beam, the bottoms of the left upright post and the right upright post are connected with a workbench, a sliding block is arranged between the upper cross beam and the workbench, a main cylinder is arranged in the center of the upper cross beam, the lower end of a piston rod of the main cylinder is connected with the center of the top of the sliding block, side cylinders are symmetrically arranged on the left side and the right side of the upper cross beam, sliding block lug seats are symmetrically arranged on the left side and the right side of the sliding block, and the lower ends of piston rods of the side cylinders are respectively connected with the sliding block lug seats; the safety plug upper supports are symmetrically arranged in the middle of the front side wall and the rear side wall of the upper cross beam, the safety plug lower supports are symmetrically arranged on the front side wall and the rear side wall of the sliding block, and the safety plug lower supports are matched with the safety plug upper supports on the same side.

As an improvement of the utility model, the slide block lug comprises a lug vertical plate and a lug transverse plate which are vertically welded into a whole, the lower end of a piston rod of the side cylinder is respectively connected with the lug transverse plate, the lug vertical plate is fixed in a slide block caulking groove of the slide block through a screw, the bottom of the lug vertical plate is abutted against the bottom of the slide block caulking groove, and a wedge-shaped block is arranged between the top of the lug vertical plate and the top of the slide block caulking groove.

As a further improvement of the utility model, the top of the wedge-shaped block is a horizontal edge, the bottom of the wedge-shaped block is a bevel edge and is pressed on the bevel edge at the top of the vertical plate of the ear seat, the outer side of the bevel edge at the top of the vertical plate of the ear seat inclines downwards, and the middle part of the wedge-shaped block is fixed on the sliding block through a wedge-shaped block screw.

Compared with the prior art, the utility model has the following beneficial effects: 1. the side cylinders are moved to the left side and the right side of the sliding block and are connected with the left side wall and the right side wall of the sliding block through the sliding block lug seats; the upper bracket of the safety bolt is moved to the front side and the rear side of the upper cross beam, and the lower bracket of the safety bolt is moved to the front side and the rear side of the sliding block, so that the size of the sliding block body in the left-right direction can be shortened by half, and the small-table-board large-tonnage hydraulic machine becomes possible.

2. The top of the vertical plate of the ear seat and the caulking groove of the sliding block are compressed and positioned through the wedge-shaped block, so that the precision requirement of assembly is reduced, and the processing cost of parts is reduced.

Drawings

FIG. 1 is a front view of a small table top large tonnage hydraulic machine of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a left side view of fig. 1.

Fig. 4 is an enlarged view of the safety pin portion of fig. 3.

Fig. 5 is an enlarged view of a portion a in fig. 1.

Fig. 6 is an enlarged view of a portion B in fig. 2.

In the figure: 1. an upper cross beam; 2. a master cylinder; 3. a side cylinder; 4. a column; 5. a slider; 6. the safety bolt is arranged on the bracket; 7. a safety bolt lower bracket; 8. a slider ear mount; 8a, an ear seat vertical plate; 8b, an ear seat transverse plate; 9. a wedge block; wedge block screws 9 a; 10. a work table; an X-direction copper guide plate; 12. a large wedge; 13. small wedge iron; a Y-direction copper guide plate; and 15. Y-direction adjusting screws.

Detailed Description

In the following description of the present invention, the terms "front", "rear", "left", "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not mean that the device must have a specific orientation.

As shown in fig. 1 to 3 and 5, the small-table-board large-tonnage hydraulic machine of the utility model comprises an upper beam 1, upright columns 4, a slide block 5 and a workbench 10, wherein the workbench 10 is an integral welding part, the tops of the left and right upright columns 4 are connected through the upper beam 1, the bottoms of the left and right upright columns 4 are connected with the workbench 10, the slide block 5 is arranged between the upper beam 1 and the workbench 10, and the slide block 5 is also a welding part. A main cylinder 2 is installed at the center of an upper cross beam 1, the lower end of a piston rod of the main cylinder 2 is connected with the top center of a sliding block 5, side cylinders 3 are symmetrically installed on the left side and the right side of the upper cross beam 1, sliding block lug seats 8 are symmetrically installed on the left side and the right side of the sliding block 5, and the lower ends of piston rods of the side cylinders 3 are respectively connected with the sliding block lug seats 8.

As shown in fig. 1 to 4, the upper safety bolt brackets 6 are symmetrically installed in the middle of the front and rear side walls of the upper beam 1, the lower safety bolt brackets 7 are symmetrically installed on the front and rear side walls of the slider, and the lower safety bolt brackets 7 are matched with the upper safety bolt brackets 6 on the same side. When the hydraulic press needs to perform operations such as die changing and the like in a shutdown state, the sliding block is stopped at the upper limit position, the lower safety plug support 7 is aligned with the pin hole of the upper safety plug support 6, the safety plug cylinder drives the safety pin to be inserted into the pin hole, the lower safety plug support 7 is connected with the upper safety plug support 6 in a locking mode, and at the moment, an operator can enter the space between the sliding block and the workbench 10 to perform operations such as die changing, safety maintenance and die repairing.

The side cylinders 3 are moved to the left side and the right side of the sliding block and are connected with the left side wall and the right side wall of the sliding block through the sliding block lug seats 8; the upper bracket 6 of the safety bolt moves to the front side and the rear side of the upper cross beam 1, and the lower bracket 7 of the safety bolt moves to the front side and the rear side of the sliding block, so that the width of the workbench 10 in the left-right direction is greatly reduced. Taking a 3000T hydraulic press of an integral frame type as an example, the size of a table top is reduced from 3800mm by 1800mm to 1800mm by 1800 mm.

As shown in fig. 5, the slider ear seat 8 includes an ear seat vertical plate 8a and an ear seat transverse plate 8b which are vertically welded as a whole, the lower end of the piston rod of the side cylinder 3 is respectively connected with the ear seat transverse plate 8b, the ear seat vertical plate 8a is fixed in the slider caulking groove of the slider through a screw, the bottom of the ear seat vertical plate 8a is supported against the bottom of the slider caulking groove, and a wedge 9 is arranged between the top of the ear seat vertical plate 8a and the top of the slider caulking groove.

The top of wedge 9 is the horizontal limit, and the bottom of wedge 9 is the hypotenuse and presses on the top hypotenuse of ear seat riser 8a for the hypotenuse, and the outside of ear seat riser 8a top hypotenuse inclines downwards, and the middle part of wedge 9 is passed through wedge screw 9a and is fixed on the slider.

The wedge screw 9a of screwing compresses tightly wedge 9 between the top of ear seat riser 8a and the top of slider caulking groove, changes common clearance fit into closely cooperating, makes not have the requirement of close cooperation between slider ear seat 8 and the slider caulking groove, has reduced the processing degree of difficulty of slider ear seat 8 and slider caulking groove, has reduced the processing cost.

As shown in fig. 6, the slider has a four-corner guide structure, the column 4 is provided with a guide seat, the guide seat surface is provided with an X-direction copper guide plate 11 and a Y-direction copper guide plate 14 on both sides of the slider corner, and the Y-direction copper guide plate 14 is adjusted by a Y-direction adjusting screw 15. Big wedge 12 and little wedge 13 are equipped with between the X to the X guiding surface of copper guide 11 and slider, the perpendicular limit of little wedge 13 and the slider laminating, the perpendicular limit of big wedge 12 and the laminating of X to copper guide 11, the inclined plane of big wedge 12 and the inclined plane of little wedge 13 mutually support, big wedge 12 passes through the fix with screw on the slider, after fixing big wedge 12, compress tightly little wedge 13 gradually through the screw, eliminate the fit clearance between slider and the X to copper guide 11, make the direction very accurate.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention. Technical features of the present invention which are not described may be implemented by or using the prior art, and will not be described herein.

Claims (3)

1. The utility model provides a hydraulic press of big tonnage of little mesa, about including the stand, the top of stand links to each other through the entablature about, and the bottom of controlling the stand is connected with the workstation, is equipped with the slider between entablature and the workstation, and the main cylinder is installed at the center of entablature, and the piston rod lower extreme of main cylinder links to each other its characterized in that with the top center of slider: the left side and the right side of the upper cross beam are symmetrically provided with side cylinders, the left side wall and the right side wall of the sliding block are symmetrically provided with sliding block lug seats, and the lower ends of piston rods of the side cylinders are respectively connected with the sliding block lug seats; the safety plug upper supports are symmetrically arranged in the middle of the front side wall and the rear side wall of the upper cross beam, the safety plug lower supports are symmetrically arranged on the front side wall and the rear side wall of the sliding block, and the safety plug lower supports are matched with the safety plug upper supports on the same side.

2. A small table top large tonnage hydraulic machine as set forth in claim 1, wherein: the slider ear seat includes that the vertical welding is holistic ear seat riser and ear seat diaphragm, the piston rod lower extreme of side jar respectively with the ear seat diaphragm links to each other, the ear seat riser passes through the fix with screw in the slider caulking groove of slider, the bottom of ear seat riser supports the bottom of leaning on the slider caulking groove, be equipped with the wedge between the top of ear seat riser and the top of slider caulking groove.

3. A small table top large tonnage hydraulic machine as set forth in claim 2, wherein: the top of wedge is the horizontal limit, the bottom of wedge is the hypotenuse and presses on the top hypotenuse of ear seat riser, the outside of ear seat riser top hypotenuse inclines downwards, the middle part of wedge is passed through the wedge fix with screw on the slider.

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