Floating workbench of press machine

Abstract

The utility model discloses a floating workbench of a press machine, and belongs to the field of press machines. Comprising a mounting seat, a bearing plate and a floating plate are arranged on the mounting seat, the bearing plate is connected with the mounting seat through a bearing seat, and the floating plate is connected with the mounting seat through a spring; a limiting device is further arranged between the floating plate and the mounting seat; the limiting device comprises a sleeve arranged at the upper end of the mounting base, a vertical limiting rod is slidably arranged in the sleeve, and the upper end of the limiting rod is fixed to the lower end face of the floating plate; the two sleeves are arranged on the two sides of the spring. The device has the beneficial effects that when the floating plate is pressed down, the sleeves and the limiting rods arranged in the sleeves in a sliding mode can limit the whole floating plate to vertically ascend and descend, and the situation that friction is generated between the floating plate and the bearing plate, and consequently the floating plate or the bearing plate is damaged is prevented. And high-pressure gas is introduced into the sleeve through the gas channel to assist the spring with insufficient elastic deformation capability to work, so that the floating plate is uniformly stressed, and the service lives of the sleeve and the limiting rod are prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of press floating workbench, belong to press field. BACKGROUND

[0002] Press (including punch press, hydraulic press) is a kind of general-purpose press with exquisite structure. It has the characteristics of wide application and high production efficiency, and the press can be widely used in cutting, punching, blanking, bending, riveting and forming processes. By exerting a strong pressure on metal blanks, the metal is plastically deformed and fractured to process parts.

[0003] The utility model discloses a kind of floating table for 630t press, the equipment is applied to press, equivalent to buffer structure, can reduce the impact of hitting force on the lower part of machine body, improve the service life of press;

[0004] But actually in use time, applicant finds, after using time becomes long, the elastic deformation ability of spring will have subtle difference, this subtle difference can lead to the force required for different spring deformation inconsistency, so that it can lead to uneven stress of the whole pressing plate, cause the whole pressing plate to incline, increase the friction force of pressing plate, affect subsequent bending operation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of press floating workbench, can effectively solve the above-mentioned problems.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] Including mounting seat, the mounting seat is provided with pressure bearing plate and floating plate, the pressure bearing plate is connected with the mounting seat by pressure bearing seat, the floating plate is connected with the mounting seat by spring;

[0008] Limiting device is further provided between the floating plate and the mounting seat.

[0009] The limiting device includes a sleeve provided on the upper end of the mounting seat, a vertical limiting rod is slidably arranged in the sleeve, and the upper end of the limiting rod is fixed to the lower end surface of the floating plate. The number of sleeves is two, and they are arranged on both sides of the spring.

[0010] Further, the sleeve comprises a first sleeve near the edge of the mounting base and a second sleeve near the center of the mounting base; the first sleeve and the second sleeve are provided with sealing rings; the mounting base is provided with a first air passage for connecting the first sleeve with the external environment and a second air passage for connecting the second sleeve with the external environment; the input end of the first air passage is connected with a first air pump, and the input end of the second air passage is connected with a second air pump.

[0011] Further, the upper end of the spring is provided with an upper mounting ring, and the lower end of the spring is provided with a lower mounting ring; the upper mounting ring and the lower mounting ring are provided with pressure sensors.

[0012] Further, the mounting base is provided with a surrounding plate, and the upper end of the surrounding plate is provided with a limiting plate; the width of the limiting plate is greater than the width of the surrounding plate.

[0013] The lower end of the pressure bearing plate is provided with a limiting groove, and the two sides of the floating plate are provided with matching grooves.

[0014] Further, the number of springs is six, and three springs are evenly distributed on the two sides of the pressure bearing base as a group; the number of the first sleeve and the second sleeve is six.

[0015] Further, the mounting base is further provided with a jacking rod channel, the jacking rod channel penetrates the mounting base, the pressure bearing base and the pressure bearing plate, and the jacking rod channel is provided with a jacking rod mechanism.

[0016] Beneficial effects are:

[0017] When the floating plate is pressed down, the sleeve and the limiting rod slidingly arranged in the sleeve in the device can limit the vertical lifting of the entire floating plate, and prevent the friction between the floating plate and the pressure bearing plate from causing damage to the floating plate or the pressure bearing plate.

[0018] In the device, high-pressure gas is introduced into the sleeve through the air passage, which assists the spring with insufficient elastic deformation capacity to work, so that the floating plate is uniformly stressed, the limiting rod can smoothly slide in the sleeve, and the service life of the sleeve and the limiting rod is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to facilitate the description, the utility model is described in detail by the following specific implementation and drawings.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a floating plate pressed down state diagram of the utility model;

[0022] Figure 3The utility model discloses a workpiece part drawing of unbent and bent.

[0023] Mark explanation:

[0024] 1, mounting seat, 2, pressure bearing plate, 3, floating plate, 4, pressure bearing seat, 5, spring, 6, sleeve, 61, first sleeve, 62, second sleeve, 63, sealing ring, 7, limit rod, 8, first air passage, 9, second air passage, 10, upper mounting ring, 11, lower mounting ring, 12, coaming, 13, limit plate, 14, limit groove, 15, matching groove, 16, top rod way. Specific implementation

[0025] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0026] It should be noted that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as the limitation of the utility model.

[0027] In addition, the terms "first", "second", "third" and the like are only for description purposes and cannot be understood as indicating or implying relative importance.

[0028] Meanwhile, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Reference Figure 1 , Figure 2 An embodiment of the utility model discloses a floating workbench of a press machine,

[0030] Including mounting seat 1, be provided with pressure bearing plate 2 and floating plate 3 on mounting seat 1, pressure bearing plate 2 is connected with mounting seat 1 by pressure bearing seat 4, floating plate 3 is connected with mounting seat 1 by spring 5;

[0031] A limiting device is arranged between the floating plate 3 and the mounting base 1.

[0032] The limiting device comprises sleeves 6 arranged at the upper end of the mounting base 1, vertical limiting rods 7 slidingly arranged in the sleeves 6, and the upper end of the limiting rods 7 being fixed to the lower end face of the floating plate 3. The sleeves 6 are two in number and arranged on the two sides of the spring 5.

[0033] Before the workpiece is punched, the upper end faces of the bearing plate 2 and the floating plate 3 are flush. When the workpiece is pressed down, the position of the workpiece in contact with the bearing plate 2 does not change, and the workpiece in contact with the floating plate 3 is pressed down, thereby completing the bending operation of the workpiece.

[0034] After the bending of the workpiece is completed, the spring 5 compressed under the floating plate 3 releases the accumulated elastic potential energy, and the floating plate 3 returns to the original position, so that the upper end face of the floating plate 3 is flush with the upper end face of the bearing plate 2 again.

[0035] When the floating plate 3 is pressed down, the sleeves 6 and the limiting rods 7 slidingly arranged in the sleeves 6 can limit the vertical lifting of the entire floating plate 3, preventing the floating plate 3 or the bearing plate 2 from being damaged due to friction between the floating plate 3 and the bearing plate 2.

[0036] The sleeves 6 comprise first sleeves 61 close to the edges of the mounting base 1 and second sleeves 62 close to the center of the mounting base 1. Sealing rings 63 are arranged in the first sleeves 61 and the second sleeves 62. The mounting base 1 is provided with a first air passage 8 for connecting the first sleeves 61 with the external environment and a second air passage 9 for connecting the second sleeves 62 with the external environment. The input end of the first air passage 8 is connected with a first air pump, and the input end of the second air passage 9 is connected with a second air pump.

[0037] In the device, when a certain spring 5 is used for a long time and the elastic deformation capacity decreases, stress imbalance occurs, which is transmitted to the sleeves 6 and the limiting rods 7, affecting the smooth sliding of the limiting rods 7 in the sleeves 6, and seriously causing the cylinder wall of the sleeves 6 to be scratched by the limiting rods 7.

[0038] The device is provided with the first air passage 8 and the second air passage 9, so that high-pressure gas can be introduced into the first sleeves 61 and the second sleeves 62 near the spring 5. The high-pressure gas enters the first sleeves 61 through the first air passage 8 and enters the second sleeves 62 through the second air passage 9, assisting the spring 5 with insufficient elastic potential energy to work and balancing the floating plate 3.

[0039] The first air passage 8 and the second air passage 9 are different in length due to the installation positions of the first sleeve 61 and the second sleeve 62, so two different air pumps, namely, the first air pump and the second air pump, are needed, and the purpose is to quickly balance the force.

[0040] The upper end of the spring 5 is provided with an upper mounting ring 10, and the lower end of the spring 5 is provided with a lower mounting ring 11, and the upper mounting ring 10 and the lower mounting ring 11 are provided with a pressure sensor.

[0041] The pressure sensor is used to determine the decrease of the elastic deformation capacity of the spring 5, the elastic force of the plurality of springs 5 is detected for comparison, the spring 5 with abnormal data is found out, and then the air pressure strength of the first air pump and the second air pump is adjusted according to the detected data to cooperate with the spring 5 to work.

[0042] The mounting seat 1 is provided with a surrounding plate 12 around, the upper end of the surrounding plate 12 is provided with a limiting plate 13, the width of the limiting plate 13 is greater than the width of the surrounding plate 12; the lower end of the pressure bearing plate 2 is provided with a limiting groove 14, and the two sides of the floating plate 3 are provided with a matching groove 15.

[0043] The limiting plate 13 and the limiting groove 14 at the lower end of the pressure bearing plate 2 in the device are used to limit the height of the floating plate 3, when the upper end surface of the floating plate 3 is flush with the pressure bearing plate 2, the limiting plate 13 will enter the matching groove 15.

[0044] The number of the spring 5 is six, and three springs 5 are evenly distributed on both sides of the pressure bearing seat 4; the number of the first sleeve 61 and the second sleeve 62 is six.

[0045] The mounting seat 1 is also provided with a top rod channel 16, the top rod channel 16 penetrates the mounting seat 1, the pressure bearing seat 4 and the pressure bearing plate 2, and a top rod mechanism is arranged in the top rod channel 16; the top rod mechanism is a conventional mechanism of the workbench of a press, which is mainly used to eject the workpiece, and is a conventional structure in the field, which can be set according to needs;

[0046] Obviously, the above embodiments are only examples for clearly illustrating, and not limit the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments cannot be exhausted, and the obvious changes or variations still fall within the protection scope of the utility model.

Claims

1. A press floating table, characterized by: The mounting base (1) is provided with a pressure bearing plate (2) and a floating plate (3), the pressure bearing plate (2) is connected with the mounting base (1) through a pressure bearing seat (4), and the floating plate (3) is connected with the mounting base (1) through a spring (5); a limiting device is further arranged between the floating plate (3) and the mounting base (1); the limiting device comprises sleeves (6) arranged at the upper end of the mounting base (1), a vertical limiting rod (7) is slidably arranged in the sleeve (6), and the upper end of the limiting rod (7) is fixed to the lower end face of the floating plate (3); the number of the sleeves (6) is two, and the sleeves (6) are arranged on the two sides of the spring (5).

2. The press floating table of claim 1, wherein: The sleeve (6) comprises a first sleeve (61) close to the edge of the mounting base (1) and a second sleeve (62) close to the center of the mounting base (1); a sealing ring (63) is arranged in each of the first sleeve (61) and the second sleeve (62); the mounting base (1) is provided with a first air passage (8) for connecting the first sleeve (61) with the external environment and a second air passage (9) for connecting the second sleeve (62) with the external environment; a first air pump is connected to the input end of the first air passage (8), and a second air pump is connected to the input end of the second air passage (9).

3. The press floating table of claim 2, wherein: The upper end of the spring (5) is provided with an upper mounting ring (10), the lower end of the spring (5) is provided with a lower mounting ring (11), and a pressure sensor is arranged in the upper mounting ring (10) and the lower mounting ring (11).

4. The press floating table of claim 3, wherein: The mounting base (1) is provided with a surrounding plate (12), the surrounding plate (12) is provided with a limiting plate (13) at the upper end, and the width of the limiting plate (13) is greater than the width of the surrounding plate (12); the lower end of the pressure bearing plate (2) is provided with a limiting groove (14), and the two sides of the floating plate (3) are provided with a matching groove (15).

5. The press floating table of claim 4, wherein: The number of the spring (5) is six, and three springs (5) are evenly distributed on the two sides of the pressure bearing seat (4); the number of the first sleeve (61) and the second sleeve (62) is six.

6. The press floating table of claim 1, wherein: The mounting base (1) is further provided with a jacking rod channel (16), the jacking rod channel (16) penetrates the mounting base (1), the pressure bearing seat (4) and the pressure bearing plate (2), and a jacking rod mechanism is arranged in the jacking rod channel (16).

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