CN211000162U

CN211000162U - Upper working table falling prevention mechanism for four-column oil press

Info

Publication number: CN211000162U
Application number: CN201921655209.6U
Authority: CN
Inventors: 关记强
Original assignee: Foshan Baijun Machinery Co ltd
Current assignee: Foshan Baijun Machinery Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-14
Anticipated expiration: 2029-09-30

Abstract

The utility model provides a mechanism is prevented falling by last workstation that four post hydraulic press was used, its mainly to the structure of preventing falling of last workstation improve. Go up workstation anti-falling mechanism including passing the anti-falling pole that entablature and last workstation are connected and fixed connection in the clamping mechanism of entablature, cooperate the realization through mechanically-operated clamping structure and anti-falling pole and prevent that the workstation from dropping. The utility model discloses a be provided with and prevent falling the pole and be connected with last workstation, prevent that the workstation from dropping, still through having the anti-falling pole and the joint mechanism cooperation of keeping away the vacancy, can adjust the position of workstation, and then the extreme operating position of adjustment hydraulic press, the utility model has the advantages of simple overall structure, the equipment is maintained conveniently, and the practicality is strong.

Description

Upper working table falling prevention mechanism for four-column oil press

Technical Field

The utility model relates to an oil press field particularly, relates to a mechanism is prevented falling by last workstation that four post oil presses were used.

Background

The hydraulic press is a machine which uses special hydraulic oil as a working medium, uses a hydraulic pump as a power source, enables the hydraulic oil to enter an oil cylinder/piston through a hydraulic pipeline by the action force of the pump, then has a plurality of groups of mutually matched sealing pieces in the oil cylinder/piston, the sealing of different positions are different, but the sealing effect is achieved, so that the hydraulic oil can not be leaked, and finally, the hydraulic oil circulates in an oil tank through a one-way valve to enable the oil cylinder/piston to do work circularly, thereby completing certain mechanical action as productivity.

Through mass search, the phenomenon that errors caused by looseness or displacement of the upper and lower plates cannot occur by excessive matching or interference fit of the upright columns and the upper and lower plates in a four-column oil press in the prior art, such as a four-column double-acting oil press disclosed by the publication number CN201399908Y, is found; or as a four-column type oil press disclosed in the publication No. CN205148964U, the precise control of the movement of the middle beam is realized by reducing the upper beam structure and increasing the transmission mechanism, and the four-column type oil press has the advantages of small occupied space, low operation cost, good operation precision and high processing efficiency; or, for example, CN206357689U discloses a four-column oil press, which achieves the purpose of saving processing time and improving equipment efficiency by adding a turntable structure to change the mold rapidly.

In summary, the workbench on the four-column hydraulic press in the prior art is inconvenient to adjust, and a corresponding anti-falling mechanism is not provided, so that a safety accident is easily caused by looseness after the four-column hydraulic press runs for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model provides an upper working table anti-falling mechanism for a four-column oil press to solve the problems,

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

an upper working table anti-falling mechanism for a four-column oil press comprises an anti-falling rod which penetrates through an upper cross beam and is connected with an upper working table, and a clamping mechanism which is fixedly connected with the upper cross beam; the anti-falling rod is fixedly connected with the upper workbench through an anti-falling rod connecting piece; the clamping mechanism comprises a telescopic device, a movable clamping plate, a rotating shaft and a sliding seat, wherein a telescopic arm of the telescopic device is fixedly connected with the front wall of the sliding seat, the movable clamping plate is hinged in the sliding seat through the rotating shaft, the rotating shaft penetrates through a through hole formed in the side wall of the sliding seat, the movable clamping plate is a rectangular block without one corner, and the short edge of the movable clamping plate is abutted to the upper cross beam; the anti-falling rod is provided with a plurality of space avoiding positions which are arranged at equal intervals, each space avoiding position is in a right-angle trapezoid shape, the bevel edge of each space avoiding position faces downwards, and each space avoiding position faces towards the movable clamping plate; the clamping mechanism further comprises a sliding rail cavity for providing the sliding seat to move and a limiting device for limiting the moving distance of the sliding seat; the slide rail cavity is composed of slide rails arranged on two sides of the slide seat, a front fixing seat used for fixing the telescopic device and a rear fixing seat used for fixing the limiting device.

Further, the slide rail cavity is fixedly connected to the upper cross beam.

Further, a spring is connected between the rear wall of the sliding seat and the rear fixed seat.

Furthermore, stop device includes regulating block and gag lever post, the gag lever post passes open on the back fixing base in there being the through-hole, the spring cup joint in the gag lever post passes the back fixing base is located on the part of slide rail intracavity, regulating block detachably fixed connection in on the gag lever post just the regulating block with back fixed seat butt.

Furthermore, the adjusting block is a nut, and the limiting rod is a screw.

Furthermore, the number of the space avoiding positions on the anti-falling rod is four.

Further, prevent falling pole connecting piece fixed connection on last workstation, prevent falling pole connecting piece with prevent falling pole fixed connection.

Further, the telescopic device is an air cylinder.

The utility model discloses the beneficial technological effect who gains is:

1. the anti-falling rod is connected with the upper workbench and matched with the clamping mechanism through the anti-falling rod with the avoidance space, so that the upper workbench is prevented from falling.

2. Through the cooperation of the movable clamping plate and the rotating shaft, the function that the movable workbench can return when the cylinder is not opened can be realized.

3. The middle spring of the structure can ensure that the anti-falling function can be always realized when no air pressure exists or the machine is stopped.

3. Overall structure is simple, and the equipment is maintained conveniently, and the practicality is strong.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic structural view of an upper table anti-falling mechanism for a four-column oil press according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a cross-sectional view A-A of an upper table drop prevention mechanism for the four-column oil press of FIG. 1;

FIG. 3 is a schematic diagram of a prior art hydraulic press;

FIG. 4 is a schematic diagram of a prior art hydraulic press;

fig. 5 is a schematic structural diagram of an oil press in the prior art.

Description of reference numerals: 1-anti-dropping rod; 2-a clamping mechanism; 21-a telescopic device; 22-a movable clamping plate; 23-a rotating shaft; 24-a slide mount; 25-a spring; 26-rear fixed seat; 27-front fixed seat; 28-a regulating block; 29-a limiting rod; 3-upper beam; 4, mounting a workbench; 5-lower working table.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention will be further described in detail with reference to the following embodiments thereof; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating directions or positional relationships based on those shown in the drawings, it is only for convenience of description and simplicity of description, but not for indicating or implying that the indicated device or component must have a specific direction, be constructed in a specific direction, and operate, and therefore the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the above terms according to specific situations.

The utility model relates to a mechanism is prevented falling by last workstation that four post hydraulic press was used, according to the following embodiment of the illustrated explanation of the attached drawing:

the first embodiment is as follows:

an upper working table falling prevention mechanism for a four-column oil press comprises a falling prevention rod 1 which penetrates through an upper cross beam 3 and is connected with an upper working table 4, and a clamping mechanism 2 which is fixedly connected with the upper cross beam 3; the anti-falling rod 1 is fixedly connected with the upper workbench 4 through an anti-falling rod connecting piece 41; the clamping mechanism 2 comprises a telescopic device 21, a movable clamping plate 22, a rotating shaft 23 and a sliding seat 24, a telescopic arm of the telescopic device 21 is fixedly connected with the front wall of the sliding seat 24, the movable clamping plate 22 is hinged in the sliding seat 24 through the rotating shaft 23, the rotating shaft 23 penetrates through a through hole formed in the side wall of the sliding seat 24, the movable clamping plate 22 is a rectangular block without one corner, and the short side of the movable clamping plate 22 is abutted to the upper cross beam 3; the anti-falling rod 1 is provided with a plurality of space avoiding positions which are arranged at equal intervals, each space avoiding position is in a right-angle trapezoid shape, the inclined edge of each space avoiding position faces downwards, and each space avoiding position faces towards the movable clamping plate 22; the clamping mechanism 2 further comprises a sliding rail cavity for providing movement for the sliding seat 24 and a limiting device for limiting the movement distance of the sliding seat 24; the slide rail cavity is composed of slide rails arranged on two sides of the slide seat, a front fixed seat 27 used for fixing the telescopic device 21 and a rear fixed seat 26 used for fixing the limiting device.

The slide rail cavity is fixedly connected to the upper cross beam 3.

A spring 25 is connected between the rear wall of the sliding seat 24 and the rear fixed seat 26.

The limiting device comprises an adjusting block 28 and a limiting rod 29, the limiting rod 29 penetrates through the rear fixing seat 26, a through hole is formed in the rear fixing seat 26, the spring 25 is sleeved on the portion, located in the sliding rail cavity, of the rear fixing seat 26, the limiting rod 29 penetrates through the limiting rod, the adjusting block 28 is detachably and fixedly connected to the limiting rod 29, and the adjusting block 28 is abutted to the rear fixing seat 25.

The adjusting block 28 is a nut, and the limiting rod 29 is a screw.

The number of the space avoiding positions on the anti-falling rod 1 is four.

Prevent falling pole connecting piece 41 fixed connection on last workstation 4, prevent falling pole connecting piece 41 with prevent falling pole 1 fixed connection.

The telescopic device 21 is a cylinder.

Slide rail, spring, cylinder, nut, screw all can seek through the model, and the direct purchase of affiliated technical staff is carried out on market, can directly look over when needing to know this model equipment and seek technical specification and know, consequently does not describe repeatedly slide rail, spring, cylinder, nut, screw.

Example two:

The slide rail cavity is fixedly connected to the upper cross beam 3.

The adjusting block 28 is a nut, and the limiting rod 29 is a screw.

The telescopic device 21 is a cylinder.

The number of the space avoiding positions on the anti-falling rod 1 is four.

Prevent falling pole connecting piece 41 fixed connection on last workstation 4, prevent falling pole connecting piece 41 with prevent falling pole 1 fixed connection. The anti-falling rod connecting piece 41 is fixedly connected with the upper workbench 4 through an inner hexagonal screw, and the anti-falling rod 1 is in threaded connection with the anti-falling rod connecting piece 41.

During operation, the cylinder promotes the sliding seat, drives the activity cardboard and drops and keep away the vacancy, and the anti-falling pole is in mobile state, adjusts the upper and lower position of anti-falling pole and then adjusts the position of workstation this moment, and extreme position when confirming the punching press, when adjusting the back, the flexible arm of cylinder handles the state of contracting, and the spring resets the sliding seat, and then will the activity cardboard is connected in the vacancy of keeping away of anti-falling pole, accomplishes spacing to the anti-falling pole, and then prevents that the workstation from dropping.

Four-column hydraulic press that this embodiment was used, as shown in the figure, it includes base, cope match-plate pattern and lower bolster are the rectangle, the lower bolster is located the top of base, the fixed oil pressure buffer that is equipped with in top of lower bolster, oil pressure buffer are oil pressure driven buffer, can absorb most kinetic energy in the motion process, reduce the impact, extension spare part life, oil pressure buffer's fixed top is equipped with down the workstation, the lower bolster is by the whole welding of Q235 for support workstation down, the fixed undercutting mould that is equipped with in top of workstation down, four angles of lower bolster up end are equipped with the stand respectively, and the stand is through the quenching and tempering grinding, the stand sets up along vertical direction, the stand sets up around oil pressure buffer, lower workstation and undercutting mould.

The hydraulic press is characterized in that a workbench is sleeved on the upright post, hollows corresponding to the upright post are arranged at four corners of the upper workbench, the top end of the upright post is connected with an upper template which is rectangular, the upper part of the upper template is fixedly connected with a hydraulic station, a main oil cylinder is fixedly arranged above the hydraulic station, the upper template is integrally welded by Q235 and is a main bearing part of the main oil cylinder and other parts, the hydraulic station is arranged on the upper template and drives hydraulic oil to generate mechanical force, a liquid filling valve is further arranged at the top of the hydraulic station and is a hydraulic element, the flow is large so as to improve the speed of the main oil cylinder and shorten the cycle time, a piston rod is arranged in the center of the main oil cylinder along the vertical direction, the bottom end of the piston rod is connected with the upper end face of the upper workbench, the upper workbench is combined by a high-strength welding plate and a copper sleeve, the upper workbench is connected with the piston rod of the main oil cylinder, and, the upper ejection cylinder device is arranged in the middle of the upper workbench, an upper trimming die is fixedly arranged below the upper workbench and connected with the upper trimming die, the upper ejection cylinder device is mounted on the upper workbench through a main oil cylinder in a driving mode and drives the upper trimming die, and the two functions of prepressing die castings and ejecting die castings are achieved according to different trimming dies.

The upper trimming die and the lower trimming die are respectively arranged on the upper workbench and the lower workbench, and the upper workbench moves up and down to perform separation and integration movement, so that redundant parts of die castings are cut off.

As shown in the figures, one side of the base is provided with a turnover oil cylinder, the upper part of the turnover oil cylinder is provided with a crank, the crank is connected with the lower workbench, the turnover oil cylinder drives the crank to rotate so as to drive the lower workbench to turn, the turnover oil cylinder is connected by a universal head, so that the resistance is reduced, and the service life of the turnover shaft is prolonged.

And an anti-falling rod device is arranged between the bottom of the main oil cylinder and the upper workbench, so that the distance between the main oil cylinder and the upper workbench is limited, and the upper workbench cannot drop accidentally.

One side of stand is from top to bottom fixed and is equipped with a plurality of induction system, induction system installs between cope match-plate pattern and lower workstation, and induction system is used for detecting the position of workstation.

The upright post is connected with the upper template through a locking nut, the upright post is connected with the lower template through a locking nut, the locking nut is arranged along the vertical direction, and the locking nut penetrates through the upper template and the lower template and is embedded into the upper end and the lower end of the upright post to be fixedly arranged.

The escalator is characterized in that an escalator fence is fixedly arranged on one side of the main oil cylinder and is arranged in the vertical direction, the escalator fence is formed by welding general sectional materials and is arranged on the upper template and the lower workbench, and an operator climbs the escalator fence to conveniently maintain the whole overturning oil press.

When the hydraulic station is implemented specifically, oil is sucked quickly through a liquid filling valve to drive a main oil cylinder to drive an upper working table to descend quickly along an upright column until an upper sensing device senses the upper working table, the upper sensing device sends a signal to drive a hydraulic station to enter a working inlet state, oil output by the hydraulic station enters the main oil cylinder to enter a slow state, the upper working table descends slowly along the upright column until a middle sensing device senses the upper working table, the middle sensing device sends a signal to drive the hydraulic station to enter the working inlet state, and the lower sensing device senses the upper working table and sends a signal to drive the hydraulic station to delay pressure maintaining; after the die casting is machined, the output oil of the hydraulic station enters a main oil cylinder and enters a quick return state, the sensing device above the hydraulic station senses the upper workbench again, the hydraulic station enters a buffering pressure relief state, the upper workbench ascends to a final position, the anti-falling rod device is ejected out and clamped with the upper workbench, the turnover oil cylinder is started at the same time to drive the lower workbench and the lower trimming die to rotate, after the lower workbench rotates for a certain angle, the lower workbench returns to an original point, and the whole process is completed.

To sum up, the utility model provides a last workstation anti-drop mechanism that four post hydraulic press was used is connected with last workstation through being provided with anti-drop pole, prevents that the workstation from dropping, still through having the anti-drop pole and the joint mechanism cooperation of keeping away the vacancy, can adjust the position of workstation, and then the extreme operating position of adjustment hydraulic press, the utility model has the advantages of simple overall structure, the equipment is maintained conveniently, and the practicality is strong.

Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.

Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, e.g., well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.

It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be understood as merely illustrative of the present invention and not as limiting the scope of the invention. After reading the description of the present invention, the skilled person can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope of the present invention defined by the claims.

Claims

1. An upper working table anti-falling mechanism for a four-column oil press is characterized by comprising an anti-falling rod which penetrates through an upper cross beam and is connected with an upper working table, and a clamping mechanism which is fixedly connected with the upper cross beam; the anti-falling rod is fixedly connected with the upper workbench through an anti-falling rod connecting piece; the clamping mechanism comprises a telescopic device, a movable clamping plate, a rotating shaft and a sliding seat, wherein a telescopic arm of the telescopic device is fixedly connected with the front wall of the sliding seat, the movable clamping plate is hinged in the sliding seat through the rotating shaft, the rotating shaft penetrates through a through hole formed in the side wall of the sliding seat, the movable clamping plate is a rectangular block without one corner, and the short edge of the movable clamping plate is abutted to the upper cross beam; the anti-falling rod is provided with a plurality of space avoiding positions which are arranged at equal intervals, each space avoiding position is in a right-angle trapezoid shape, the bevel edge of each space avoiding position faces downwards, and each space avoiding position faces towards the movable clamping plate; the clamping mechanism further comprises a sliding rail cavity for providing the sliding seat to move and a limiting device for limiting the moving distance of the sliding seat; the slide rail cavity is composed of slide rails arranged on two sides of the slide seat, a front fixing seat used for fixing the telescopic device and a rear fixing seat used for fixing the limiting device.

2. The upper table drop preventing mechanism for a four column oil press as set forth in claim 1, wherein said slide rail chamber is fixedly attached to the upper cross member.

3. The upper table drop preventing mechanism for a four-column oil press as set forth in claim 1, wherein a spring is connected between a rear wall of said sliding seat and said rear fixing seat.

4. The upper table anti-drop mechanism for the four-column oil press according to claim 3, wherein the limiting device comprises an adjusting block and a limiting rod, the limiting rod passes through a through hole formed in the rear fixing seat, the spring is sleeved on a part of the limiting rod, which passes through the rear fixing seat and is located in the slide rail cavity, the adjusting block is detachably and fixedly connected to the limiting rod, and the adjusting block abuts against the rear fixing seat.

5. The upper table drop preventing mechanism for a four-column oil press according to claim 4, wherein said adjusting block is a nut, and said stopper rod is a screw.

6. The upper table drop preventing mechanism for a four-column oil press as claimed in claim 1, wherein said drop preventing lever has four space-avoiding portions.

7. The upper table drop preventing mechanism for a four-column oil press as set forth in claim 1, wherein said drop preventing rod attachment is fixedly attached to the upper table, said drop preventing rod attachment being fixedly attached to said drop preventing rod.

8. The upper table drop preventing mechanism for a four-column oil press according to claim 1, wherein said telescoping device is a cylinder.