CN216968787U - Hydraulic press with good buffering effect - Google Patents

Abstract

The utility model discloses a hydraulic machine with a good buffering effect, and relates to the field of hydraulic machines. The utility model comprises a base and a mounting frame, wherein a bidirectional screw rod is transversely arranged in the base, the bidirectional screw rod is connected with a connecting rod through two screw rod sleeves, a hydraulic cylinder drives a piston rod to extend, the piston rod drives a cross rod to press downwards through a sleeve ring, the cross rod extrudes a buffer rod through a limiting plate, the buffer rod moves downwards under the action of a first spring, when a rubber ball props against a sleeve, the limit compression level of a first spring and a second spring is reached, if the pressure of the piston rod is still increased, a hydraulic plate extrudes a hydraulic groove to stress the hydraulic groove, the rubber balls at the bottoms of the two limiting plates extrude the sleeve, so that the pressure is transmitted to a buffer table through the sleeve, the buffer table slowly moves downwards under the action of the bidirectional screw rod, the connecting rod and a spring group after being pressurized, so that the hydraulic groove and the hydraulic plate on the hydraulic table keep moving downwards synchronously, and the hydraulic groove is prevented from being damaged, thereby improving the punching efficiency.

Description

Hydraulic press with good buffering effect

Technical Field

The utility model relates to the field of hydraulic machines, in particular to a hydraulic machine with a good buffering effect.

Background

The hydraulic press is a machine which uses liquid as working medium and is made according to Pascal principle for transferring energy to implement various processes, can be used for processing products of metal, plastics, rubber, wood and powder, etc., and can be used for pressing process and press-forming process, also can be used for straightening, press-fitting, packing, briquetting and pressing plate, etc.

According to the search discovery, chinese patent No. CN202120250986.3 discloses a hydraulic press with good buffering effect, which realizes buffering of a hydraulic rod through a plurality of springs, thereby relieving the pressure on the mold, but when the pressure on the hydraulic rod exceeds the stress limit of the springs, the mold is still stressed too much, and is easily damaged.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide a hydraulic machine with a good buffering effect, so as to solve the technical problem that when the pressure of a hydraulic rod exceeds the stress limit of a spring, a die is stressed too much and is easy to damage.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an effectual hydraulic press of buffering, includes base and mounting bracket, two-way lead screw is transversely installed to the inside of base, be connected with the connecting rod through two lead screw covers on the two-way lead screw, the end-to-end connection of connecting rod has the cushion cap, spring bar assembly is installed to the inner wall below of mounting bracket, and spring bar assembly is located the cushion cap, spring bar assembly includes the sleeve, telescopic inside below has the buffer beam through first spring coupling, the second spring has been cup jointed to the surface of buffer beam, the top of buffer beam is connected with the limiting plate, be connected with the horizontal pole between the limiting plate, the bottom of limiting plate is fixed with the rubber ball.

Through adopting the above-mentioned technical scheme, the extension of pneumatic cylinder drive piston rod, the piston rod drives the horizontal pole through the lantern ring and pushes down, the horizontal pole passes through limiting plate extrusion buffer beam, under the effect of first spring, make the buffer beam move down, when rubber ball conflict sleeve, then reach the limit compression level of first spring and second spring, if piston rod pressure still increases, then hydraulic plate extrusion hydraulic pressure groove, make the hydraulic pressure groove atress, the rubber ball extrusion sleeve of two limiting plate bottoms simultaneously, thereby pass through sleeve conduction to cushion table with pressure, can be under two-way lead screw after the cushion table receives pressure, connecting rod and spring assembly's effect slowly move down, and then make the hydraulic pressure platform move down, thereby make hydraulic pressure groove and the hydraulic pressure board on the hydraulic pressure bench keep moving down in step, can protect the hydraulic pressure groove.

Furthermore, a hydraulic platform is installed on the buffer platform, and a hydraulic groove is formed in the top of the hydraulic platform.

Furthermore, a hydraulic cylinder is installed in the middle of the bottom of the mounting frame, the output end of the hydraulic cylinder is connected with a hydraulic plate through a piston rod, a lantern ring is sleeved on the piston rod, and the lantern ring is located in the middle of the cross rod and fixedly connected with the cross rod.

Through adopting above-mentioned technical scheme, when the piston rod moved down, the horizontal pole can move down in step to once cushion through extrusion spring bar subassembly, be favorable to the protection to the hydraulic groove.

Furthermore, the hydraulic groove is matched with the hydraulic plate, the hydraulic plate is positioned right above the hydraulic groove, and the lantern ring is fixed on a piston rod of the hydraulic cylinder.

Through adopting above-mentioned technical scheme, the staff puts the work piece on the hydraulic pressure bench, then starts the pneumatic cylinder for the piston rod drives the hydraulic pressure board and pushes down, thereby accomplishes punching press work.

Furthermore, the connecting rod is provided with two, and two connecting rods set up along the length central line mirror image of two-way lead screw, and the both ends of connecting rod are connected with lead screw cover and cushion table respectively through the pivot simultaneously.

Through adopting above-mentioned technical scheme, receive decurrent pressure back when the cushion pad, can make the connecting rod touch the lead screw cover, two-way lead screw and lead screw cover threaded connection, consequently when the lead screw cover removes, can make the top of connecting rod move down, cooperate the effect of spring assembly simultaneously for the cushion pad slowly moves down.

Furthermore, spring groups are arranged on two sides between the buffer table and the base and each spring group consists of a plurality of springs in a rectangular array shape.

In summary, the utility model mainly has the following beneficial effects:

1. according to the utility model, the lantern ring is arranged on the piston rod of the hydraulic cylinder, the cross rods are fixed on two sides of the lantern ring and connected with the buffer rod through the limiting plates, when stamping is carried out, a worker opens the hydraulic cylinder, the hydraulic cylinder drives the piston rod to extend, the piston rod drives the cross rods to press downwards through the lantern ring, the cross rods extrude the buffer rod through the limiting plates, the buffer rod moves downwards under the action of the first spring, when rubber balls abut against the sleeve, the limit compression level of the first spring and the second spring is reached, if the pressure of the piston rod is still increased, the hydraulic plate extrudes the hydraulic groove, the hydraulic groove is stressed, the rubber balls at the bottoms of the two limiting plates extrude the sleeve, so that the pressure is transmitted to the buffer table through the sleeve, the buffer table can slowly move downwards under the action of the bidirectional screw rod, the connecting rod and the spring group after being subjected to the pressure, so that the hydraulic groove on the hydraulic table and the hydraulic plate keep moving downwards synchronously, and then the pressure that makes the hydraulic pressure groove receive can not increase, avoids the hydraulic pressure groove to damage to improve punching press efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the base of the present invention;

fig. 3 is a schematic view of the spring rod assembly of the present invention.

In the figure: 1. a base; 101. a bidirectional screw rod; 102. a screw rod sleeve; 103. a connecting rod; 2. a mounting frame; 3. a hydraulic table; 301. a hydraulic tank; 4. a hydraulic cylinder; 401. a hydraulic plate; 5. a buffer table; 6. a cross bar; 601. a collar; 602. a limiting plate; 603. a rubber ball; 7. a spring rod assembly; 701. a first spring; 702. a buffer rod; 703. a second spring; 704. a sleeve; 8. and a spring set.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A hydraulic press with good buffering effect is disclosed, as shown in FIGS. 1, 2 and 3, and comprises a base 1 and an installation frame 2, a bidirectional screw 101 is transversely installed inside the base 1, the bidirectional screw 101 is connected with a connecting rod 103 through two screw sleeves 102, the tail end of the connecting rod 103 is connected with a buffering table 5, a spring rod assembly 7 is installed below the inner wall of the installation frame 2, the spring rod assembly 7 is located on the buffering table 5, the spring rod assembly 7 comprises a sleeve 704, the lower inside of the sleeve 704 is connected with a buffering rod 702 through a first spring 701, the outer surface of the buffering rod 702 is sleeved with a second spring 703, the top of the buffering rod 702 is connected with a limiting plate 602, a cross rod 6 is connected between the limiting plates 602, a rubber ball 603 is fixed at the bottom of the limiting plate 602, a hydraulic cylinder 4 drives a piston rod to extend, the piston rod drives the cross rod 6 to press down through the sleeve 601, the cross rod 6 extrudes the buffering rod 702 through the limiting plate 602, under the effect of the first spring 701, the buffer rod 702 moves downwards, when the rubber ball 603 abuts against the sleeve 704, the limit compression level of the first spring 701 and the second spring 703 is reached, if the pressure of the piston rod is still increased, the hydraulic plate 401 presses the hydraulic groove 301, the hydraulic groove 301 is stressed, meanwhile, the rubber ball 603 at the bottom of the two limiting plates 602 presses the sleeve 704, the pressure is transmitted to the buffer table 5 through the sleeve 704, the buffer table 5 slowly moves downwards under the effect of the two-way screw rod 101, the connecting rod 103 and the spring group 8 after being stressed, the hydraulic table 3 further moves downwards, the hydraulic groove 301 on the hydraulic table 3 and the hydraulic plate 401 keep moving downwards synchronously, and the hydraulic groove 301 can be protected.

Please refer to fig. 1 and 2, a hydraulic table 3 is installed on a buffer table 5, a hydraulic groove 301 is formed in the top of the hydraulic table 3, a hydraulic cylinder 4 is installed in the middle of the bottom of the mounting frame 2, an output end of the hydraulic cylinder 4 is connected with a hydraulic plate 401 through a piston rod, a lantern ring 601 is sleeved on the piston rod, the lantern ring 601 is located in the middle of the cross rod 6 and fixedly connected with the cross rod 6, when the piston rod moves down, the cross rod 6 can move down synchronously, so that primary buffering is performed by squeezing the spring rod assembly 7, which is beneficial to protecting the hydraulic groove 301, the hydraulic groove 301 is matched with the hydraulic plate 401, the hydraulic plate 401 is located right above the hydraulic groove 301, meanwhile, the lantern ring 601 is fixed on the piston rod of the hydraulic cylinder 4, a worker places a workpiece on the hydraulic table 3 and then starts the hydraulic cylinder 4, so that the piston rod drives the hydraulic plate 401 to press down, thereby completing the stamping work.

Please refer to fig. 1 and 2, two connecting rods 103 are provided, and the two connecting rods 103 are arranged along the length center line of the bidirectional screw 101 in a mirror image manner, and meanwhile, two ends of the connecting rods 103 are respectively connected with the screw rod sleeve 102 and the buffer table 5 through a rotating shaft, the spring set 8 is installed at two sides between the buffer table 5 and the base 1, and the spring set 8 is composed of a plurality of springs in a rectangular array shape, after the buffer table 5 is pressed downwards, the connecting rods 103 can be made to abut against the screw rod sleeve 102, the bidirectional screw rod 101 is in threaded connection with the screw rod sleeve 102, therefore, when the screw rod sleeve 102 moves, the top end of the connecting rods 103 can move downwards, and the buffer table 5 can move downwards slowly by matching with the action of the spring set.

The implementation principle of the embodiment is as follows: firstly, the base 1 is installed, when punching work is carried out, a worker opens the hydraulic cylinder 4, the hydraulic cylinder 4 drives the piston rod to extend, the piston rod drives the cross rod 6 to press downwards through the lantern ring 601, the cross rod 6 extrudes the buffer rod 702 through the limiting plate 602, the buffer rod 702 moves downwards under the action of the first spring 701, when the rubber ball 603 butts against the sleeve 704, the limit compression level of the first spring 701 and the second spring 703 is reached, if the pressure of the piston rod is still increased, the hydraulic plate 401 extrudes the hydraulic groove 301, the hydraulic groove 301 is stressed, meanwhile, the rubber balls 603 at the bottoms of the two limiting plates 602 extrude the sleeve 704, so that the pressure is transmitted to the buffer table 5 through the sleeve 704, the buffer table 5 slowly moves downwards under the action of the bidirectional screw rod 101, the connecting rod 103 and the spring group 8 after being subjected to the pressure, so that the hydraulic table 3 moves downwards, and the hydraulic groove 301 on the hydraulic table 3 and the hydraulic plate 401 keep moving downwards synchronously, the hydraulic tank 301 may be protected.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims (6)

1. The utility model provides an effectual hydraulic press of buffering, includes base (1) and mounting bracket (2), its characterized in that: two-way lead screw (101) are transversely installed to the inside of base (1), be connected with connecting rod (103) through two lead screw covers (102) on two-way lead screw (101), the end-to-end connection of connecting rod (103) has cushion stage (5), spring rod subassembly (7) are installed to the inner wall below of mounting bracket (2), and spring rod subassembly (7) are located cushion stage (5), spring rod subassembly (7) are including sleeve (704), the inside below of sleeve (704) is connected with buffer beam (702) through first spring (701), second spring (703) have been cup jointed to the surface of buffer beam (702), the top of buffer beam (702) is connected with limiting plate (602), be connected with horizontal pole (6) between limiting plate (602), the bottom of limiting plate (602) is fixed with rubber ball (603).

2. The hydraulic machine with good buffering effect as claimed in claim 1, characterized in that: the hydraulic platform (3) is installed on the buffer platform (5), and a hydraulic groove (301) is formed in the top of the hydraulic platform (3).

3. The hydraulic machine with good buffering effect as claimed in claim 1, characterized in that: install pneumatic cylinder (4) in the middle of the bottom of mounting bracket (2), the output of pneumatic cylinder (4) is connected with hydraulic plate (401) through the piston rod, the lantern ring (601) has been cup jointed on the piston rod, and lantern ring (601) be located the intermediate position of horizontal pole (6) and with horizontal pole (6) fixed connection.

4. The hydraulic machine with good buffering effect as claimed in claim 2, characterized in that: the hydraulic groove (301) is matched with the hydraulic plate (401), the hydraulic plate (401) is located right above the hydraulic groove (301), and meanwhile the lantern ring (601) is fixed on a piston rod of the hydraulic cylinder (4).

5. The hydraulic machine with good buffering effect as claimed in claim 1, characterized in that: the two connecting rods (103) are arranged, the two connecting rods (103) are arranged along the length center line of the bidirectional screw rod (101) in a mirror image mode, and meanwhile the two ends of the connecting rods (103) are connected with the screw rod sleeve (102) and the buffer platform (5) through rotating shafts respectively.

6. The hydraulic machine with good buffering effect as claimed in claim 1, characterized in that: spring groups (8) are installed at two sides between the buffer table (5) and the base (1), and the spring groups (8) are composed of a plurality of springs in a rectangular array shape.

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