Background
The hydraulic shaping machine is generally used for press shaping a workpiece, and is configured to inject a raw material into a die, press the raw material into a desired shape of the workpiece by using a large clamping force, and remove the workpiece from the die after shaping.
In the past, a conventional oil pressure shaping machine adopts a structure as shown in fig. 1, and in order to realize two procedures of shaping and demoulding, two oil cylinders, namely an upper oil cylinder 1 and a lower oil cylinder 2, need to be adopted. The hydraulic station 3 is simultaneously communicated with an upper oil cylinder 1 and a lower oil cylinder 2, the bottom of the upper oil cylinder 1 is connected with an upper punch 4, and the top of the lower oil cylinder 3 is connected with a lower punch 5; a die 6 is fixedly arranged between the upper punch 4 and the lower punch 5, and a die cavity for forming a workpiece is arranged in the die 6.
The working mode of the traditional oil pressure shaping machine is as follows: starting equipment, putting raw materials for preparing a workpiece into the female die 6, driving the upper punch 4 to move downwards to the position of the female die by the upper oil cylinder 1, and enabling the workpiece to be formed by punching through the cooperation of the upper punch 4 and the lower punch 5. After the forming is finished, the upper oil cylinder 1 returns to the original position, the lower oil cylinder 2 drives the lower punch 5 to jack up, the workpiece is demoulded, and the lower oil cylinder 2 returns to the original position after the workpiece is taken, so that a working cycle is completed.
In the prior art, two oil cylinders are required to be adopted, and the oil cylinders are divided into an upper oil cylinder and a lower oil cylinder, so that higher cost is caused; the die carrier has a complex structure and low precision, the working process needs to be completed in three steps, the production efficiency is low, and the maintenance is difficult.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an oil pressure shaping machine capable of completing the processes of workpiece stamping shaping and demoulding, which solves the problems of high cost, complex work flow and low production efficiency caused by the adoption of a complex die carrier structure with double oil cylinders in the prior art.
The invention is realized by adopting the following technical scheme:
an oil pressure truing machine comprising: the device comprises an upper oil cylinder, an upper punch, an upper sliding plate, a first guide column, a female die plate, a second guide column, a lower sliding plate, a lower punch, a return spring and a base; the second guide column is fixedly connected to the base, the lower sliding plate is movably sleeved outside the second guide column, and the female die plate is fixedly connected to the second guide column; the return spring is sleeved outside the second guide post, one end of the return spring is abutted against the lower sliding plate, and the other end of the return spring is abutted against the female die plate; a die cavity is formed in the female die plate, and the lower punch is suitable for entering and penetrating through the die cavity; the bottom end of the first guide column is fixedly connected with the lower sliding plate, the upper sliding plate is movably sleeved outside the first guide column, and the top end of the first guide column is provided with a limiting part which is suitable for being tightly pressed and limited with the upper sliding plate; the upper punch is fixedly connected with the upper sliding plate, and the output end of the upper oil cylinder is connected with the upper punch.
Furthermore, the oil pressure shaping machine also comprises a limiting pad; the limiting pad is fixedly arranged on the base, and the lower sliding plate is arranged on the limiting pad.
Further, the oil pressure shaping machine also comprises a cross beam; the upper oil cylinder is fixedly connected to the cross beam.
Further, the oil pressure shaping machine also comprises a machine table column; the cross beam is fixedly connected to the top end of the machine table column, and the bottom end of the machine table column is fixedly connected with the base.
Further, the oil pressure shaping machine also comprises a hydraulic station; the hydraulic station is arranged on the side part of the base and is connected with the upper oil cylinder through an oil pipe.
Further, the lower punch is fixedly connected to the lower sliding plate through a bolt.
Compared with the prior art, the invention can achieve the following beneficial effects: during shaping, the upper punch is driven by the upper oil cylinder to move downwards, the upper punch is matched with the lower punch, and a workpiece is formed in the female die plate by using huge punching force; after shaping is finished, the upper oil cylinder returns to drive the upper punch and the upper sliding plate to move upwards, after the upper sliding plate moves to a position tightly pushing the first guide post, the first guide post is stressed and moves upwards synchronously with the upper sliding plate, the first guide post drives the lower sliding plate to move upwards in the process, the reset spring is compressed, and meanwhile, the lower punch upwards pushes the workpiece out of the female die plate to realize the function of demoulding; after the drawing of patterns finishes, go up the cylinder downstream, the first guide post of top sliding plate no longer upwards top tightly, reset spring's resilience force can drive the lower sliding plate and reset, and the board resumes initial state, accomplishes a duty cycle.
Compared with the traditional double-oil-cylinder shaping machine, the shaping and demolding procedures can be completed by only one oil cylinder, so that the manufacturing cost is reduced; the working process is completed only by one step, and the production efficiency is obviously improved; and the die carrier has high working precision, convenient maintenance and simple operation.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention discloses an oil pressure shaping machine, and particularly relates to a shaping machine with a single oil cylinder structure. This kind of oil pressure trimmer includes: an upper cylinder 10, an upper punch 20, an upper slide plate 30, a first guide post 40, a female die plate 50, a second guide post 60, a lower slide plate 70, a lower punch 80, a return spring 90, and a base 100. Referring to fig. 2 to 4, in which the base 100 serves as an integral support, the second guide post 60 is fixedly installed on the base 100, and the female mold plate 50 is fixedly connected to the second guide post 60; the return spring 90 is sleeved outside the second guiding post 60, one end of the return spring 90 abuts against the lower sliding plate 70, and the other end abuts against the female mold plate 50. The female die plate 50 has a die cavity formed therein for forming the workpiece 150 and the lower punch 80 is adapted to enter and pass through the die cavity, and specifically, the top end of the lower punch 80 is located within the die cavity such that the die cavity forms an open-topped cavity structure for injecting the material.
The bottom end of the first guide post 40 is fixedly connected with the lower sliding plate 70, the upper sliding plate is movably sleeved outside the second guide post 60, the top end of the first guide post 40 is provided with a limiting part which is suitable for being tightly pressed and limited with the upper sliding plate 30, the moving stroke of the upper sliding plate 30 is limited, and when the upper sliding plate 30 slides upwards to the top end of the first guide post 40, the limiting part is tightly pressed.
The upper punch 20 is fixedly connected with the upper sliding plate 30, and the output end of the upper cylinder 10 is connected with the upper punch 20 for driving the upper punch 20 to move up and down.
The working principle of the invention is as follows: referring to fig. 2 to 3, in the shaping process, the female mold plate 50 is filled with the raw material, the upper cylinder 10 is actuated, the upper cylinder 10 drives the upper punch 20 and the upper sliding plate 30 to move down, the upper punch 20 enters the mold cavity, the raw material is pressed by a large punching force and shaped in the mold cavity, and the workpiece 150 is obtained. Referring to fig. 4, after the shaping is completed, the workpiece 150 is still in the die cavity, and at this time, the upper cylinder 10 returns to drive the upper punch 20 and the upper sliding plate 30 to move upward, and since the first guide pillar 40 is fixed, after the upper sliding plate 30 moves to a position where it abuts against the first guide pillar 40, the first guide pillar 40 is forced and is pushed upward by the upper sliding plate; in the process, the first guide pillar 40 drives the lower sliding plate 70 and the lower punch 80 to move upwards, the lower sliding plate 70 compresses the return spring 90, and meanwhile, the lower punch 80 pushes the workpiece 150 upwards, so that the demolding function is realized, and the workpiece 150 is convenient to take out; after the demolding is completed, the upper cylinder 10 will make a descending movement again, the upper sliding plate 30 slides downwards and no longer pushes up the first guiding column 40, the resilience force of the return spring 90 will drive the lower sliding plate 70 to move downwards and reset, and the machine station returns to the initial state, completing a working cycle.
Compared with the traditional double-oil-cylinder shaping machine, the oil pressure shaping machine with the single-oil-cylinder structure provided by the invention has the advantages that the shaping to the demolding process can be completed only through one oil cylinder, so that the manufacturing cost is reduced; the working process is completed only by one step, and the production efficiency is obviously improved; and the die carrier has high working precision, convenient maintenance and simple operation.
Preferably, the present invention further comprises a position limiting pad 110, wherein the position limiting pad 110 is fixedly disposed on the base 100, and the lower sliding plate 70 is disposed on the position limiting pad 110. The limiting pad 110 provides supporting and limiting functions for the lower sliding plate 70, and when the mold is released, the lower sliding plate 70 can be separated from the limiting pad 110; after demolding, return spring 90 rebounds to return lower sliding plate 70 to stop pad 110.
Preferably, the present invention further comprises a cross member 120, and the upper cylinder 10 is fixedly connected to the cross member 120. The cross member 120 provides a mounting location for the upper cylinder 10.
Further preferably, the oil hydraulic shaping machine further includes a machine column 130, the cross beam 120 is fixedly connected to the top end of the machine column 130, and the bottom end of the machine column 130 is fixedly connected to the base 100. The machine column 130 supports the cross beam 120, and the machine column 130, the cross beam 120, and the base 100 together form a machine structure.
Preferably, the present invention further comprises a hydraulic station 140 for providing hydraulic pressure to the upper cylinder 10. The hydraulic station 140 is provided at the side of the base 100 and is connected to the upper cylinder 10 through an oil pipe.
Preferably, the lower punch 80 is fixedly attached to the top end of the lower slide plate 70 by bolting to provide a secure attachment.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.