CN220862519U - Lower die with rotatable upper die and four-column hydraulic press - Google Patents

Abstract

The utility model discloses a lower die with a rotatable upper die, which comprises a die body, a lower die and a lower die, wherein the lower die is arranged on the die body: the rotating disc of the rotating device is connected with the fixed disc through a rotating shaft, the rotating disc can rotate along the axis of the rotating disc, and the upper die is connected with the rotating disc; the bottom surface of the lower die is provided with a through hole; the universal ball of the jacking device is arranged on the top end surface of the reciprocating rod, and the reciprocating rod can reciprocate up and down and can pass through the through hole on the lower die. Also disclosed is a four column hydraulic press: the fixed disk is fixedly connected to the bottom surface of the movable cross beam, the lower die is fixedly connected to the working table surface, the jacking device is arranged below the working table surface, the working table surface is also provided with a through hole, and the reciprocating rod can penetrate through the through hole of the working table surface. Through this go up rotatable lower mould of mould, the ejection of compact direction of U type work piece of being convenient for to satisfy the demand of different production conditions, make the preparation of the former four post hydraulic machines of enterprise can satisfy the large scale oil tank casing, need not to change four post hydraulic machines of jumbo size, thereby save equipment investment.

Description

Lower die with rotatable upper die and four-column hydraulic press

Technical Field

The utility model belongs to the field of automobile oil tank production, and particularly relates to a lower pressing die with a rotatable upper die and a four-column hydraulic machine for oil tank shell production.

Background

In the manufacturing process of the oil tank shell for the automobile, the plate body is required to be molded into a U shape through a pressing die, so that the front plate, the rear plate and the lower plate of the oil tank shell are formed.

After the lower pressing die is installed on the four-column hydraulic machine, referring to the four-column hydraulic machine in fig. 1, four upright posts of the four-column hydraulic machine form a wide surface 1 and a narrow surface 2, the distance between the two upright posts of the wide surface 1 is about 2m, the distance between the two upright posts of the narrow surface 2 is about 0.85m, the size of an oil tank shell originally produced by an enterprise is smaller, the width of the lower die is also smaller, the width of the lower die is smaller than that of the narrow surface 2, a plate can be fed from the wide surface 1, and the plate is discharged from the narrow surface 2 after being molded. Enterprises now produce oil tank shells for large-scale diggers, the oil tank shells are larger in size, the width of a lower die is larger than the width of a narrow face 2, the width of a required plate is also larger than the width of the narrow face 2, therefore, the plate can only be fed from the wide face 1, after being molded into a U shape, the width of the lower die is larger than the width of the narrow face 2, the width of a lower plate of a U-shaped shell plate is also larger than the width of the narrow face 2, the lower plate cannot be discharged from the narrow face 2, on the wide face 1, the front and rear shell plates of the U-shaped structure are clamped by an upper die, cannot move forwards and backwards, and after the shell plates of the U-shaped structure are demolded due to limited ascending distance of the upper die, the lower die is also higher, the front and rear walls of the lower die cannot be limited, and the original four-column hydraulic press cannot meet the requirement of manufacturing of the large-size oil tank shells.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of utility model

Based on the above, the utility model discloses a lower pressing die with a rotatable upper die and a four-column hydraulic machine to solve the problems.

A lower die with a rotatable upper die comprises an upper die, a lower die, a rotating device and a jacking device.

The rotating device comprises a fixed disc and a rotating disc, wherein the rotating disc is positioned below the fixed disc, the rotating disc is connected with the fixed disc through a rotating shaft, and can rotate along the axis of the rotating disc; the upper die is fixedly connected to the bottom surface of the rotating disc.

The lower die is arranged below the upper die and is specifically and fixedly connected to the workbench surface of the four-column hydraulic press, and a through hole is formed in the bottom surface of the lower die; the lifting device is arranged below the lower die, the specific lifting device is connected to the bottom surface of the working table surface through a bracket, the lifting device comprises a reciprocating rod and a universal ball, the universal ball is arranged on the top end surface of the reciprocating rod, the reciprocating rod can reciprocate up and down and can pass through a through hole on the lower die, the universal ball is in contact with the bottom surface of the oil tank shell workpiece, and the oil tank shell workpiece can be lifted together with the upper die; the universal ball is in the prior art, is a heavy-load type universal ball-screw installation type produced by the Shang Automation technology Co., ltd. In Dongguan, is screwed into the top end surface of the reciprocating rod through an installation screw, the ball body of the universal ball is further sleeved with a rubber sleeve, so that the rubber sleeve is more attached to the bottom surface of the oil tank shell workpiece, the surface of the workpiece is prevented from being worn, the universal ball is convenient to rotate, and the workpiece is also convenient to pull and discharge.

The lifting device further comprises an air cylinder or an oil cylinder, wherein the reciprocating rod is driven by the oil cylinder or the air cylinder, namely, the reciprocating rod is a piston rod of the oil cylinder or the air cylinder, and can move up and down under the driving of the oil cylinder or the air cylinder.

Further, a notch or a groove is formed in each of four corners of the top surface of the rotating disc, the inner surface of the notch or the groove is a landslide, a spring pin is respectively mounted in each of four corners of the bottom surface of the fixed disc, and the spring pin can stretch out and draw back.

Preferably, the spring pin comprises a spring and pin columns, four corners of the fixed disc are respectively provided with a boss, the bosses are provided with pin holes, the spring and the pin columns of the spring pin are sequentially arranged in the pin holes from top to bottom, so that when the rotating disc rotates in place, the pin columns of the spring pin can fall into a notch or a groove on the rotating disc under the action of spring elastic force, positioning is realized, the difficulty in discharging caused by displacement of the rotating disc when a workpiece is discharged is avoided, when the rotating disc needs to be rotated, the pin columns of the spring pin can slide along the sliding slope of the notch or the groove, the spring is automatically compressed, so that the pin columns slide out of the notch or the groove, the rotating disc can smoothly rotate, and the tail ends of the pin columns are also provided with balls, so that the pin columns of the spring pin slide more smoothly.

A four-column hydraulic press comprises an upper cross beam, a movable cross beam, a workbench surface, a plug column, a hydraulic cylinder and four upright columns; the stand upper end fixed connection is in the entablature, stand lower extreme fixed connection in table surface, movable cross beam locates between entablature and the table surface, movable cross beam and stand sliding connection, movable cross beam can reciprocate along the stand, opens on the concrete movable cross beam has four holes, and four stands set up in corresponding hole, and movable cross beam uses four stands to reciprocate as the direction, pneumatic cylinder fixed mounting is in the entablature top surface, and the piston rod of pneumatic cylinder passes entablature and the upper end fixed connection of cock stem, the lower extreme fixed connection of cock stem is in movable cross beam, so pneumatic cylinder can drive cock stem and movable cross beam and reciprocate from top to bottom.

The four-column hydraulic press further comprises the rotatable lower die of the upper die, the fixed disc is fixedly connected to the bottom surface of the movable cross beam, the lower die is fixedly connected to the working table surface, the jacking device is arranged below the working table surface, the jacking device is specifically connected to the bottom surface of the working table surface through a support, the cylinder body of the cylinder or the cylinder of the jacking device is specifically connected to the bottom surface of the working table surface through the support, the working table surface is also provided with a through hole, and the reciprocating rod of the jacking device can penetrate through the through hole of the working table surface.

Through the technical scheme, the utility model at least comprises the following beneficial effects:

according to the lower pressing die with the rotatable upper die, after the material plate is molded into the U-shaped workpiece, the jacking device can jack the U-shaped workpiece to be tightly attached to the upper die, the upper die can rotate through the rotating device after being lifted together with the upper die, and meanwhile the U-shaped workpiece can be driven to rotate together, so that the discharging direction of the U-shaped workpiece can be conveniently adjusted, and the requirements of different production conditions can be met.

The four-column hydraulic machine can be modified on the basis of the original four-column hydraulic machine of an enterprise, the four-column hydraulic machine is used for processing and producing the shell of the large oil tank, when the plate of the oil tank shell is wider and can only feed and discharge from the wide surface of the four-column hydraulic machine, the plate is molded into a U-shaped shell, the U-shaped shell can be lifted together with an upper die through a jacking device, and when the upper die rotates through a rotating device, the U-shaped shell can rotate together with the upper die, so that the discharging direction of the U-shaped shell is adjusted, and the U-shaped shell can be discharged from the wide surface of the four-column hydraulic machine. The problem in the prior art can be solved, so that the original four-column hydraulic machine of an enterprise can meet the manufacturing of a large-size oil tank shell, the large-size four-column hydraulic machine does not need to be replaced, the equipment investment is saved, and the economic benefit is achieved.

Drawings

Fig. 1 and fig. 2 are schematic views of the overall structure of the lower pressing die with the rotatable upper die and the four-column hydraulic press according to the embodiment of the application;

FIG. 3 is a schematic view of a rotary device according to an embodiment of the present application;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a schematic view showing the structure of the lower mold according to the embodiment of the present application;

FIG. 6 is a schematic view of a portion of the structure of the lower mold and the jacking device according to the embodiment of the present application;

Reference numerals illustrate: 1 wide surface, 2 narrow surface, 3 rotary disk, 301 landslide, 304 pivot, 4 fixed disk, 401 round pin post, 402 boss, 403 ball, 5 cope mold, 6 bed die, 7 table surface, 8 cylinder, 9 support, 901 universal ball, 902 reciprocating rod, 10 stand, 11 entablature, 12 movable cross beam, 13 pneumatic cylinder, 14 cock.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, which are simplified schematic diagrams illustrating the basic structure of the present utility model only by way of illustration, and thus show only the constitution related to the present utility model.

In the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus the terms describing the positional relationship are merely for illustration and are not to be construed as limiting the present patent; the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," and the like may explicitly or implicitly include one or more of such features. The specific meaning of the terms described above will be understood by those of ordinary skill in the art as the case may be.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 6, a lower die having a rotatable upper die includes an upper die 5, a lower die 6, a rotating means and a jacking means.

Referring to fig. 2 and 3, the rotating device comprises a fixed disc 4 and a rotating disc 3, the rotating disc 3 is located below the fixed disc 4, the rotating disc 3 is connected with the fixed disc 4 through a rotating shaft 304, the rotating disc 3 can rotate along the axis of the rotating disc 3, specifically, the upper end of the rotating shaft 304 is fixedly connected to the center of the fixed disc 4, a bearing is sleeved on the rotating shaft 304, a rotating hole is formed in the center of the rotating disc 3, a bearing is arranged in the rotating hole, and the bearing is sleeved on the rotating shaft 304, so that the rotating disc 3 can stably rotate along the axis of the rotating disc 3.

Referring to fig. 2, the upper mold 5 is fixedly connected to the bottom surface of the rotating disc 3, the lower mold 6 is disposed below the upper mold 5, specifically, the lower mold 6 is fixedly connected to a working table 7 of the four-column hydraulic press, and referring to fig. 5, a through hole is formed in the bottom surface of the lower mold 6.

Referring to fig. 2 and 6, the jacking device is disposed below the lower mold 6, and the specific jacking device is connected to the bottom surface of the table top 7 through a bracket 9, and the jacking device includes a reciprocating rod 902 and a universal ball 901, where the universal ball 901 is mounted on the top surface of the reciprocating rod 902, and the reciprocating rod 902 can reciprocate up and down, and can pass through a through hole on the lower mold 6, so that the universal ball 901 contacts with the bottom surface of the oil tank shell workpiece, and the oil tank shell is attached to the upper mold 5, and the oil tank shell workpiece can be lifted together with the upper mold 5; the universal ball 901 is a screw rod installation type heavy-load universal ball 901 produced by Dongguan, shang and automatic technologies limited company in the prior art, an installation screw rod at the bottom surface of the universal ball 901 is screwed into the top end surface of the reciprocating rod 902, and a rubber sleeve is sleeved on the ball body of the universal ball 901, so that the universal ball is more attached to the bottom surface of a workpiece of an oil tank shell, and meanwhile, the surface of the workpiece is prevented from being worn; the arrangement of the universal ball 901 is convenient for the rotation of the workpiece and the drawing and discharging of the workpiece. The jacking device further comprises a cylinder 8, wherein the reciprocating rod 902 is driven by the cylinder 8, namely, the reciprocating rod 902 is a piston rod of the cylinder 8 and can move up and down under the driving of the cylinder 8.

Referring to fig. 4, the four corners of the top surface of the rotating disc 3 are respectively provided with a notch, the inner surface of the notch is a landslide 301, the four corners of the bottom surface of the fixed disc 4 are respectively provided with a spring pin, and the spring pins can stretch and retract. Specifically, the spring pin comprises a spring and a pin 401, bosses 402 are respectively arranged at four corners of the fixed disc 4, pin holes are formed in the bosses 402, and the spring and the pin 401 of the spring pin are sequentially arranged in the pin holes from top to bottom. When the rotary disc 3 rotates in place, the pin 401 of the spring pin can fall into the notch on the rotary disc 3 under the action of spring force, positioning is realized, the problem that the workpiece is difficult to discharge due to displacement of the rotary disc 3 in discharging is avoided, when the rotary disc 3 needs to be rotated, the pin 401 of the spring pin can slide along the landslide 301 of the notch, and the spring automatically compresses, so that the pin 401 slides out of the notch, and the rotary disc 3 can smoothly rotate; the end of the pin 401 is also provided with a ball 403, so that the pin 401 of the spring pin slides more smoothly.

Referring to fig. 2, a four-column hydraulic press comprises an upper beam 11, a movable beam 12, a working table 7, plugs 14, a hydraulic cylinder 13 and four columns 10; the upper end of the upright post 10 is fixedly connected with the upper cross beam 11, the lower end of the upright post 10 is fixedly connected with the working table 7, the movable cross beam 12 is arranged between the upper cross beam 11 and the working table 7, the movable cross beam 12 is in sliding connection with the upright post 10, the movable cross beam 12 can move up and down along the upright post 10, in particular, four holes are formed in the movable cross beam 12, the four upright posts 10 are arranged in the corresponding holes, and the movable cross beam 12 moves up and down by taking the four upright posts 10 as a guide; the hydraulic cylinder 13 is fixedly arranged on the top surface of the upper beam 11, a piston rod of the hydraulic cylinder 13 penetrates through the upper beam 11 and is fixedly connected with the upper end of the plug 14, the lower end of the plug 14 is fixedly connected with the movable beam 12, and therefore the hydraulic cylinder 13 can drive the plug 14 and the movable beam 12 to reciprocate up and down. The four-column hydraulic press further comprises the rotatable lower die of the upper die, the fixed disc 4 is fixedly connected to the bottom surface of the movable cross beam 12, the lower die 6 is fixedly connected to the working table surface 7, the jacking device is arranged below the working table surface 7, specifically, the jacking device is connected to the bottom surface of the working table surface 7 through a support 9, then specifically, the cylinder body of the cylinder 8 of the jacking device is fixedly connected to the bottom surface of the working table surface 7 through the support 9, a through hole is also formed in the working table surface 7, and the reciprocating rod 902 of the jacking device can penetrate through the through hole of the working table surface 7.

The working principle of the lower pressing die with the rotatable upper die and the four-column hydraulic press is as follows:

The distance between two vertical columns 10 of the wide surface 1 of the four-column hydraulic machine is 2m, the distance between two vertical columns 10 of the narrow surface 2 is 0.85m, and the length and the width of an oil tank shell of the large-scale excavator manufactured by processing are 1.5m and 1.2m, so that a raw material plate of the oil tank shell can only be fed and discharged from the wide surface 1 of the four-column hydraulic machine.

When the plate is fed from the wide surface 1 and placed on the lower die 6, the upper die 5 moves downwards along with the plug 14 and the movable cross beam 12 under the drive of the hydraulic cylinder 13, and the upper die 5 molds the plate to form a U-shaped oil tank shell; the upper die 5 moves upwards to lift, and simultaneously, the reciprocating rod 902 of the jacking device passes through the through hole on the lower die 6 under the drive of the air cylinder 8, so that the universal ball 901 contacts with the bottom surface of the oil tank shell workpiece, and the U-shaped oil tank shell is attached to the upper die 5 and lifted together with the upper die 5; after lifting in place, because the upper die 5 is fixedly connected to the rotating disk 3 of the rotating device, the upper die can rotate, when the upper die 5 rotates, due to the arrangement of the universal ball 901, the upper die 5 can drive the U-shaped oil tank shell attached to the upper die to rotate together, and after the upper die rotates by 90 degrees, operators can draw out the U-shaped oil tank shell from the wide surface 1 of the four-column hydraulic machine in an unobstructed manner, so that discharging is completed.

The foregoing description is only illustrative of the preferred embodiments of the present utility model, and various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the present utility model, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the utility model.

Claims (5)

1. The utility model provides a rotatable push down mould of last mould which characterized in that: comprises an upper die (5), a lower die (6), a rotating device and a jacking device;

The rotating device comprises a fixed disc (4) and a rotating disc (3), the rotating disc (3) is connected with the fixed disc (4) through a rotating shaft (304), the rotating disc (3) can rotate along the axis of the rotating disc (3), and the upper die (5) is fixedly connected with the rotating disc (3);

The lower die (6) is arranged below the upper die (5), and a through hole is formed in the bottom surface of the lower die (6); the jacking device is arranged below the lower die (6), and comprises a reciprocating rod (902) and a universal ball (901), wherein the universal ball (901) is arranged on the top end surface of the reciprocating rod (902), and the reciprocating rod (902) can reciprocate up and down and can pass through a through hole in the lower die (6).

2. The rotatable lower die of the upper die according to claim 1, wherein: the jacking device further comprises an air cylinder (8) or an oil cylinder, and the reciprocating rod (902) is driven by the oil cylinder or the air cylinder (8).

3. A rotatable lower die for an upper die according to claim 1 or 2, wherein: the four corners of the rotating disc (3) are respectively provided with a notch or a groove, the inner surface of the notch or the groove is a landslide (301), the four corners of the fixed disc (4) are respectively provided with a spring pin, and the spring pins can stretch out and draw back.

4. A rotatable lower die for an upper die as claimed in claim 3, wherein: the spring pin comprises a spring and pin columns (401), bosses (402) are respectively arranged on four corners of the fixed disc (4), pin holes are formed in the bosses (402), the spring and the pin columns (401) of the spring pin are sequentially arranged in the pin holes, and balls (403) are further clamped at the tail ends of the pin columns (401).

5. A four-column hydraulic press, which comprises an upper cross beam (11), a movable cross beam (12), a working table (7), plugs (14), a hydraulic cylinder (13) and four upright columns (10); the utility model provides a stand, stand (10) upper end fixed connection is in entablature (11), stand (10) lower extreme fixed connection is in table surface (7), movable cross beam (12) are located between entablature (11) and table surface (7), movable cross beam (12) and stand (10) sliding connection, movable cross beam (12) can reciprocate along stand (10), pneumatic cylinder (13) are installed in entablature (11) top surface, and the piston rod of pneumatic cylinder (13) passes entablature (11) and the upper end fixed connection of cock stem (14), the lower extreme fixed connection of cock stem (14) is in movable cross beam (12), its characterized in that: the rotary die comprises a movable cross beam (12), a fixed disc (4) is fixedly connected to the bottom surface of the movable cross beam (12), a lower die (6) is fixedly connected to a workbench surface (7), a jacking device is arranged below the workbench surface (7), a through hole is formed in the workbench surface (7), and a reciprocating rod (902) of the jacking device can penetrate through the through hole of the workbench surface (7).