CN212028413U - Hydraulic press with buffer function - Google Patents

Abstract

The utility model discloses a hydraulic machine with a buffer function, which comprises a supporting table, wherein a mobile station is connected on the supporting table in a sliding way; the left end of the upper part of the supporting table is provided with a frame, and the right end of the upper part of the supporting table is provided with a moving mechanism; the upper part of the frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder is downwards fixedly connected with the upper pressure plate; the front end and the rear end of the top surface of the mobile station are symmetrically provided with buffer cylinders with closed bottom ends, and the position of the bottom surface of the upper pressure plate corresponding to the buffer rod is provided with a buffer column with adjustable length. The utility model discloses be provided with the cushion cylinder, the buffering post, when the top board downwards pressed to the work piece that is located the mobile station under the effect of pneumatic cylinder, the buffering post on the top board bottom surface earlier with the buffer beam contact, compress the buffer spring of its bottom, buffer spring is consumed partial energy after the compressive deformation to reduce the falling speed of top board, to the impact force of mobile station when reducing top board and work piece contact, prevent the damage of mobile station, thereby prolong the life of equipment.

Description

Hydraulic press with buffer function

Technical Field

The utility model belongs to the technical field of the hydraulic press, concretely relates to hydraulic press with buffer function.

Background

The hydraulic press is a machine for processing products such as metal, plastic, rubber, wood, powder and the like by using hydrostatic pressure. It is commonly used in the pressing process and the compression molding process. The hydraulic press comprises a hydraulic press body, a hydraulic cylinder, a piston rod and a hydraulic cylinder, wherein the hydraulic press body comprises a hydraulic cylinder and a hydraulic cylinder; when the hydraulic press is used specifically, the hydraulic cylinder at the upper part controls the upper pressing plate to move up and down to press or press and form a workpiece on the workbench.

The speed of an upper pressing plate of the existing hydraulic press is high in the process of moving downwards, and large impact force is easily generated on a workbench when the upper pressing plate is pressed down to be in contact with a workpiece, so that the working damage is caused, and the service life of equipment is shortened.

Therefore, it is necessary to design a hydraulic machine with a buffering function.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a hydraulic machine with a buffer function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hydraulic machine with a buffering function comprises a supporting table, wherein a moving table is connected to the supporting table in a sliding mode; the left end of the upper part of the supporting table is provided with a frame, and the right end of the upper part of the supporting table is provided with a moving mechanism for controlling the movement of the moving table;

a hydraulic cylinder is arranged at the upper part of the frame, and a piston rod of the hydraulic cylinder is downwards fixedly connected with the upper pressure plate;

the moving mechanism comprises a motor, and the motor is fixedly arranged at the right end of the support platform through a motor bracket; a transmission screw rod is coaxially and fixedly arranged at the end part of a rotating shaft of the motor leftwards;

the right end of the mobile station is fixedly connected with the transmission carriage; a transmission screw hole in threaded fit with the transmission screw is formed in the transmission carriage; the bottom of the transmission planker is connected with the supporting platform in a sliding manner;

the front end and the rear end of the top surface of the mobile station are symmetrically provided with buffer cylinders with closed bottom ends, and the upper ends of the buffer cylinders are provided with cylinder covers; a piston is arranged in the buffer cylinder, a buffer rod is arranged at the upper part of the piston, and the end part of the buffer rod extends upwards out of the cylinder cover; a plurality of buffer springs are arranged between the piston and the bottom surface of the buffer cylinder, and two ends of each buffer spring are fixedly connected with the buffer cylinder and the piston respectively;

the position department that corresponds with the buffer beam on the top board bottom surface is provided with length-adjustable cushion column, the bottom of cushion column is provided with the rubber pad.

Preferably, the buffer column comprises an upper buffer column, an adjusting stud and a lower buffer column; the top of the upper buffer column is fixedly connected with the bottom surface of the upper pressure plate;

the bottom surface of the upper buffer column and the top surface of the lower buffer column are provided with threaded holes which extend along the axial direction in a square manner;

and two ends of the adjusting stud are respectively in threaded fit with the threaded hole in the bottom surface of the upper buffer column and the threaded hole in the top surface of the lower buffer column.

Preferably, a limit block is arranged on the support table on the left side of the rack, a proximity switch capable of sensing the position of the mobile station is arranged on the limit block, and the proximity switch is electrically connected with the motor and controls the motor to stop running.

Preferably, the rack comprises four upright columns fixedly connected with the support table, a top plate is arranged at the tops of the upright columns, the hydraulic cylinder is fixedly arranged on the top plate, and a piston rod of the hydraulic cylinder penetrates through the top plate downwards to be fixedly connected with the upper pressure plate.

Preferably, the middle part between the two stand columns at the front end of the support table and the middle part between the two stand columns at the rear end of the support table are both vertically and upwardly provided with sliding limit plates, and one sides, opposite to the two sliding limit plates, of the two sliding limit plates are provided with first limit sliding chutes from top to bottom;

the front end and the rear end of the upper pressure plate are symmetrically provided with first limiting slide blocks which are in sliding fit with the corresponding first limiting slide grooves.

Preferably, the lower parts of the front end and the rear end of the mobile station are symmetrically provided with locking cylinders, and the end parts of piston rods of the locking cylinders are fixedly connected with locking blocks;

and the lower part of one side, opposite to the two sliding limiting plates, is provided with a locking groove matched with the corresponding locking block.

Preferably, the bottom of the mobile platform is provided with two mobile limiting slide rails extending along the length direction of the support platform;

two movement limiting sliding grooves which are in sliding fit with the corresponding movement limiting sliding rails are arranged on the supporting table along the length direction.

Preferably, the bottom of the transmission carriage is provided with two transmission slide rails which are in sliding fit with the corresponding movement limiting slide grooves.

The utility model has the advantages that:

(1) the utility model discloses be provided with the cushion cylinder in hydraulic press with buffer function, the buffering post, when the top board in the effect of pneumatic cylinder down to being located the work piece on the mobile station, the buffering post on the top board bottom surface contacts with the buffer beam earlier, buffer beam downstream under the effect of top board, compress the buffer spring of its bottom, buffer spring is by consumption partial energy behind the compression deformation, thereby reduce the falling speed of top board, to the impact force of mobile station when reducing top board and work piece contact, prevent the damage of mobile station, thereby the life of extension equipment.

(2) The hydraulic machine with the buffering function of the utility model can adjust the whole length of the buffering column through the arrangement of the upper buffering column, the adjusting stud and the lower buffering column; when the upper press plate pushes down, the length of the buffer column can be adjusted, and the buffer column can meet the requirement of buffering when workpieces with different thicknesses are pressed.

(3) The utility model discloses the mobile station can be followed a supporting bench through moving mechanism's control in the hydraulic press with buffer function and removed, when needs material loading or unloading, the starter motor, the motor drives drive screw and rotates, screw-thread fit at drive screw and transmission planker, under the slip spacing fit of transmission planker and a supporting bench, make the mobile station along removing spacing spout right side movement through the transmission planker, move out completely in following the surrounding of frame until the mobile station, there is not any shelter from the thing around the mobile station this moment, no matter what the big work piece homoenergetic of size is convenient place the upper portion of mobile station or take off from the mobile station.

(4) The utility model discloses be provided with locking cylinder and latch segment in hydraulic press with buffer function, when the below of moving platform motion to the clamp plate, the piston rod of locking cylinder stretches out, makes the latch segment insert corresponding locking inslot to it is fixed to lock the mobile station, thereby prevents that the clamp plate from pushing down the in-process mobile station and taking place to remove and influence the quality of suppression work piece.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic perspective view of a structure of a mobile station in a hydraulic machine with a buffering function of the present invention when the mobile station is located in a frame;

FIG. 2 is a left side view of the structure of the mobile station in the hydraulic machine with buffering function of the present invention located in the frame;

FIG. 3 is a schematic perspective view of the structure of the hydraulic machine with buffering function after the moving platform is moved out of the frame;

fig. 4 is a schematic perspective view of the mobile station of the present invention;

fig. 5 is a schematic front view of the structure of the mobile station of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic perspective view of the upper plate of the present invention;

wherein:

1-a support table, 101-a limit block, 102-a proximity switch, 103-a sliding limit plate, 104-a first limit chute, 105-a locking groove and 106-a moving limit chute;

2-a mobile station, 201-a locking cylinder, 202-a locking block and 203-a mobile limiting slide rail;

3-frame, 301-column, 302-top plate;

4-a hydraulic cylinder, 5-an upper pressing plate, 501-a first limiting slide block;

6-motor, 601-motor support, 7-drive screw, 8-drive carriage, 9-drive screw hole and 901-drive slide rail;

10-a buffer cylinder, 1001-a cylinder cover, 1002-a piston, 1003-a buffer rod and 1004-a buffer spring;

11-buffer column, 1101-upper buffer column, 1102-adjusting stud and 1103-lower buffer column.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, the terms such as "upper", "lower", "bottom", "top" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and the relationship term determined only for the convenience of describing the structural relationship of each component or element of the present invention is not particularly referred to any component or element of the present invention, and the limitation of the present invention cannot be understood.

In the present invention, terms such as "connected" and "connected" should be understood in a broad sense, and may be either fixedly connected or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1-3, a hydraulic machine with a buffer function comprises a support table 1, wherein a moving table 2 is connected on the support table 1 in a sliding way; the left end of the upper part of the support table 1 is provided with a frame 3, and the right end of the upper part of the support table 1 is provided with a moving mechanism for controlling the movement of the moving table 2;

a hydraulic cylinder 4 is arranged at the upper part of the frame 3, and a piston rod of the hydraulic cylinder 4 is downwards fixedly connected with an upper pressure plate 5;

the moving mechanism comprises a motor 6, and the motor 6 is fixedly arranged at the right end of the support table 1 through a motor bracket 601; a transmission screw 7 is coaxially and fixedly arranged at the end part of a rotating shaft of the motor 6 leftwards;

the right end of the mobile station 2 is fixedly connected with a transmission carriage 8; a transmission screw hole 9 in threaded fit with the transmission screw 7 is formed in the transmission carriage 8; the bottom of the transmission carriage 8 is connected with the support table 1 in a sliding manner;

as shown in fig. 4-6, the front and rear ends of the top surface of the mobile station 2 are symmetrically provided with cushion cylinders 10 with closed bottom ends, and the upper ends of the cushion cylinders 10 are provided with cylinder covers 1001; a piston 1002 is arranged in the buffer cylinder 10, a buffer rod 1003 is arranged at the upper part of the piston 1002, and the end part of the buffer rod 1003 extends upwards out of a cylinder cover 1001; a plurality of buffer springs 1004 are arranged between the piston 1002 and the bottom surface of the buffer cylinder 10, and two ends of each buffer spring 1004 are respectively and fixedly connected with the buffer cylinder 10 and the piston 1002;

the bottom surface of the upper pressure plate 5 is provided with a buffer column 11 with adjustable length at a position corresponding to the buffer rod 1003, and the bottom of the buffer column 11 is provided with a rubber pad.

When the upper platen 5 is pressed downwards to the workpiece on the moving table 2 under the action of the hydraulic cylinder 4, the buffer column 11 on the bottom surface of the upper platen 5 is firstly contacted with the buffer rod 1003, the buffer rod 1003 moves downwards under the action of the upper platen 5 to compress the buffer spring 1004 at the bottom of the buffer rod, and the buffer spring 1004 is compressed and deformed to consume part of energy, so that the falling speed of the upper platen 5 is reduced, the impact force on the moving table 2 when the upper platen 5 is contacted with the workpiece is reduced, the damage to the moving table 2 is prevented, and the service life of the device is prolonged.

Preferably, as shown in fig. 2 and 7, the buffer column 11 includes an upper buffer column 1101, an adjusting stud 1102, and a lower buffer column 1103; the top of the upper buffer column 1101 is fixedly connected with the bottom surface of the upper pressure plate 5;

threaded holes which extend along the axial direction in a square shape are formed in the bottom surface of the upper buffering column 1101 and the top surface of the lower buffering column 1103;

two ends of the adjusting stud 1102 are respectively in threaded fit with a threaded hole in the bottom surface of the upper buffer column 1101 and a threaded hole in the top surface of the lower buffer column 1103.

The overall length of the buffer column 11 can be adjusted through the arrangement of the upper buffer column 1101, the adjusting stud 1102 and the lower buffer column 1103; when the upper pressure plate 5 is pressed downwards, the length of the buffer column 11 can be adjusted, so that the buffer column can meet the buffer requirement when workpieces with different thicknesses are pressed; when the thickness of the workpiece to be processed is large, the buffer column 11 needs to be adjusted to be long, and when the thickness of the workpiece to be processed is small, the buffer column 11 needs to be adjusted to be short.

Preferably, a limit block 101 is arranged on the support table 1 on the left side of the frame 3, a proximity switch 102 capable of sensing the position of the mobile station 2 is arranged on the limit block 101, and the proximity switch 102 is electrically connected with the motor 6 and controls the motor 6 to stop operation. When the mobile station 2 moves below the upper pressure plate 5, the proximity switch 102 is triggered by sensing the corresponding end surface of the mobile station 2, thereby controlling the motor 6 to stop operation and stopping the movement of the mobile station 2.

Preferably, the frame 3 includes four upright posts 301 fixedly connected to the support table 1, a top plate 302 is disposed at the top of each upright post 301, the hydraulic cylinder 4 is fixedly disposed on the top plate 302, and a piston rod of the hydraulic cylinder 4 downwardly penetrates through the top plate 302 and is fixedly connected to the upper pressure plate 5.

Preferably, the sliding limit plates 103 are vertically and upwardly arranged in the middle between the two upright columns at the front end of the support table 1 and in the middle between the two upright columns at the rear end of the support table 1, and the first limit sliding chutes 104 are arranged on the opposite sides of the two sliding limit plates 103 from top to bottom;

the front end and the rear end of the upper pressure plate 5 are symmetrically provided with first limiting slide blocks 501 which are in sliding fit with the corresponding first limiting slide grooves 104. Specifically, the first limiting sliding block is a trapezoidal sliding block.

Preferably, the locking cylinders 201 are symmetrically arranged at the lower parts of the front end and the rear end of the mobile station 2, and the end parts of piston rods of the locking cylinders 201 are fixedly connected with the locking blocks 202;

the lower part of the opposite side of the two slide stopper plates 103 is provided with a locking groove 105 which is engaged with the corresponding locking piece 202.

When the mobile station 2 moves below the upper pressure plate 5, the motor 6 stops running to stop the mobile station 2; at this time, the piston rod of the locking cylinder 201 extends out, so that the locking block 202 is inserted into the corresponding locking groove 105, thereby locking and fixing the mobile station 2, and preventing the mobile station 2 from moving to influence the quality of the pressed workpiece in the process of pressing the upper pressing plate 5 downwards.

Preferably, two movable limiting slide rails 203 extending along the length direction of the support table 1 are arranged at the bottom of the movable table 2;

two movement limiting sliding grooves 106 which are in sliding fit with the corresponding movement limiting sliding rails 203 are arranged on the supporting table 1 along the length direction.

Preferably, two transmission slide rails 901 which are in sliding fit with the corresponding movement limiting slide grooves 106 are arranged at the bottom of the transmission carriage 8.

The hydraulic machine with the buffering function has the following specific implementation mode:

when the material loading is needed, namely, a workpiece to be processed needs to be installed on the mobile station 2, the motor 6 is started, the motor 6 drives the transmission screw 7 to rotate, the mobile station 2 moves rightwards along the movement limiting sliding groove 106 through the transmission planker 8 under the threaded fit of the transmission screw 7 and the transmission planker 8 and the sliding limiting fit of the transmission planker 8 and the supporting table 1 until the mobile station 2 is completely moved out of the enclosure of the rack 3, at the moment, no shielding object exists around the mobile station 2, and the workpiece with any size can be conveniently placed on the upper portion of the mobile station 2.

After the workpiece is placed, starting the motor 6 to enable the mobile station 2 to move leftwards along the moving limiting sliding groove 106, and when the mobile station 2 moves to the position below the upper pressing plate 5, the proximity switch 102 senses the corresponding end face of the mobile station 2 and is triggered, so that the motor 6 is controlled to stop operation, and the mobile station 2 stops moving; at this time, the piston rod of the locking cylinder 201 is extended, so that the locking block 202 is inserted into the corresponding locking groove 105, thereby locking and fixing the mobile station 2.

And then the hydraulic cylinder 4 controls the upper pressure plate 5 to move up and down to press or press and form the workpiece. When the upper platen 5 presses downwards to the workpiece on the moving table 2 under the action of the hydraulic cylinder 4, the buffer column 11 on the bottom surface of the upper platen 5 contacts with the buffer rod 1003 firstly, the buffer rod 1003 moves downwards under the action of the upper platen 5 to compress the buffer spring 1004 at the bottom of the buffer rod, and the buffer spring 1004 consumes part of energy after being compressed and deformed, so that the falling speed of the upper platen 5 is reduced; when the upper platen 5 moves upward, the piston 1002 and the buffer rod 1003 are reset by the buffer spring 1004.

After pressing, the piston rod of the locking cylinder 201 retracts, so that the locking block 202 retracts from the corresponding locking groove 105, and the locking and fixing of the mobile station 2 are cancelled; then the motor 6 is started to make the mobile station 2 move rightwards along the moving limit sliding chute 106 until the mobile station 2 is completely moved out of the enclosure of the frame 3, and at the moment, no shielding object is arranged around the mobile station 2, and workpieces with large sizes can be conveniently taken down from the mobile station 2.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the present invention, and those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive labor are still within the scope of the present invention.

Claims (8)

1. A hydraulic machine with a buffering function is characterized by comprising a supporting table, wherein a moving table is connected to the supporting table in a sliding manner; the left end of the upper part of the supporting table is provided with a frame, and the right end of the upper part of the supporting table is provided with a moving mechanism for controlling the movement of the moving table;

a hydraulic cylinder is arranged at the upper part of the frame, and a piston rod of the hydraulic cylinder is downwards fixedly connected with the upper pressure plate;

the moving mechanism comprises a motor, and the motor is fixedly arranged at the right end of the support platform through a motor bracket; a transmission screw rod is coaxially and fixedly arranged at the end part of a rotating shaft of the motor leftwards;

the right end of the mobile station is fixedly connected with the transmission carriage; a transmission screw hole in threaded fit with the transmission screw is formed in the transmission carriage; the bottom of the transmission planker is connected with the supporting platform in a sliding manner;

the front end and the rear end of the top surface of the mobile station are symmetrically provided with buffer cylinders with closed bottom ends, and the upper ends of the buffer cylinders are provided with cylinder covers; a piston is arranged in the buffer cylinder, a buffer rod is arranged at the upper part of the piston, and the end part of the buffer rod extends upwards out of the cylinder cover; a plurality of buffer springs are arranged between the piston and the bottom surface of the buffer cylinder, and two ends of each buffer spring are fixedly connected with the buffer cylinder and the piston respectively;

the position department that corresponds with the buffer beam on the top board bottom surface is provided with length-adjustable cushion column, the bottom of cushion column is provided with the rubber pad.

2. The hydraulic machine with a buffering function as claimed in claim 1, wherein the buffering column comprises an upper buffering column, an adjusting stud and a lower buffering column; the top of the upper buffer column is fixedly connected with the bottom surface of the upper pressure plate;

the bottom surface of the upper buffer column and the top surface of the lower buffer column are provided with threaded holes which extend along the axial direction in a square manner;

and two ends of the adjusting stud are respectively in threaded fit with the threaded hole in the bottom surface of the upper buffer column and the threaded hole in the top surface of the lower buffer column.

3. The hydraulic machine with the buffering function as claimed in claim 1, wherein a limit block is arranged on the support table on the left side of the frame, a proximity switch capable of sensing the position of the mobile station is arranged on the limit block, and the proximity switch is electrically connected with the motor and controls the motor to stop running.

4. The hydraulic machine with the buffering function as claimed in claim 1, wherein the frame comprises four upright posts fixedly connected with the support table, a top plate is arranged at the top of each upright post, the hydraulic cylinder is fixedly arranged on the top plate, and a piston rod of the hydraulic cylinder penetrates downwards through the top plate to be fixedly connected with the upper pressure plate.

5. The hydraulic machine with the buffering function as claimed in claim 4, wherein the middle part between the two upright columns at the front end of the supporting platform and the middle part between the two upright columns at the rear end of the supporting platform are both vertically provided with a sliding limiting plate upwards, and the opposite sides of the two sliding limiting plates are provided with a first limiting chute from top to bottom;

the front end and the rear end of the upper pressure plate are symmetrically provided with first limiting slide blocks which are in sliding fit with the corresponding first limiting slide grooves.

6. The hydraulic machine with the buffering function as claimed in claim 5, wherein the locking cylinders are symmetrically arranged at the lower parts of the front end and the rear end of the mobile platform, and the end part of a piston rod of each locking cylinder is fixedly connected with the locking block;

and the lower part of one side, opposite to the two sliding limiting plates, is provided with a locking groove matched with the corresponding locking block.

7. The hydraulic machine with buffer function as claimed in claim 1, wherein the bottom of the moving platform is provided with two moving limit slide rails extending along the length direction of the support platform;

two movement limiting sliding grooves which are in sliding fit with the corresponding movement limiting sliding rails are arranged on the supporting table along the length direction.

8. The hydraulic machine with buffer function as claimed in claim 7, wherein the bottom of the transmission carriage is provided with two transmission slide rails which are in sliding fit with the corresponding movement limiting slide grooves.

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