Powder forming hydraulic machine

Abstract

According to the powder forming hydraulic machine, a servo motor and an automatic control system are arranged, a gear disc is in transmission connection with the servo motor through a gear, the automatic control system can control the precision of vertical rotation of the gear disc, and therefore the precision of material adding and reducing of the hydraulic machine is guaranteed while automatic material adding and reducing are achieved through the hydraulic machine; the supporting rings are two opposite semicircular steel rings, the supporting rings are located in the circular grooves formed in the inner ring of the gear disc, the gear disc can move up and down to drive the supporting rings to move up and down, when the lower pressing head needs to be replaced, only the two semicircular supporting rings of the supporting rings need to be detached, then the core rod is removed, the lower pressing head can be separated from the female die plate, and the replacement time of the lower pressing head is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic mechanical equipment, and in particular relates to a powder forming hydraulic press. Background Art

[0002] Powder forming technology has been widely used in modern industrial production, especially in the manufacture of high-precision, high-performance parts. As an important piece of equipment for powder forming, hydraulic presses play a key role in the powder forming process. However, the ram of traditional hydraulic presses requires frequent replacement, on average every seven days. This requires the complete removal of the female die platen, guide rails, and material box, requiring two people to coordinate and approximately an hour to replace, severely impacting production efficiency. Furthermore, manual operation of the gear platen is currently required for adding and removing materials, but manual operation is inefficient and inaccurate.

[0003] A new powder forming hydraulic press is needed to solve the above technical problems. Summary of the Invention

[0004] The utility model aims to provide a powder forming hydraulic press, which is used to solve the technical problems in the prior art of long time for replacing the lower pressure head and low precision of adding and subtracting materials in the hydraulic press.

[0005] The technical solution of the utility model to solve the technical problem is:

[0006] A powder forming hydraulic press comprises a main cylinder, an upper beam, an upper slider, an upper pressure head, a lower pressure head, a female mold plate, a lower slider, a lower beam, an ejector cylinder and a column, wherein the upper beam is fixedly arranged on the top of the column, the main cylinder body passes through the center position of the upper beam and is fixedly connected to the upper beam; the upper slider is slidably arranged on the column below the upper beam, the upper surface of the upper slider is fixedly connected to the piston rod of the main cylinder, the upper pressure head is fixedly arranged on the lower surface of the upper slider, and the piston rod of the main cylinder moves up and down to drive the upper slider to move up and down and then drive the upper pressure head to move up and down; the female mold plate is fixedly arranged on the column below the upper slider, the lower slider is slidably arranged on the column below the female mold plate, and the ejector cylinder is fixedly arranged below the lower slider On the lower beam; the ejection cylinder includes: a core-pulling cylinder piston rod, a center cylinder piston rod, a gear plate, a support ring, a guide sleeve and a cylinder body, the guide sleeve is arranged on the outer surface of the cylinder body and is fixedly connected to the upper surface of the lower beam; the gear plate is arranged above the guide sleeve and is threadedly connected to the cylinder body and can move up and down along the cylinder body; the support ring is arranged above the gear plate and is in contact with the gear plate and the lower slider; a core-pulling cylinder piston rod is arranged at the center position of the center cylinder piston rod, the core-pulling cylinder piston rod is connected to one end of the core rod, and the other end of the core rod is fixedly connected to the lower pressure head; the lower surface of the lower slider is fixedly connected to the center cylinder piston rod, and the up and down movement of the center cylinder piston rod drives the lower slider, the core-pulling cylinder piston rod, the core rod and the lower pressure head to move up and down;

[0007] It also includes a servo motor, a gear is provided on the output shaft of the servo motor, the gear plate is meshed with the gear, the support ring is two opposite semicircular support rings, the semicircular support rings are located in the circular groove provided on the inner ring of the gear plate, and the up and down movement of the gear plate can drive the support ring to move up and down.

[0008] Furthermore, the servo motor is arranged on one side of the gear plate.

[0009] Furthermore, the semicircular support ring is a steel ring.

[0010] Furthermore, the guide sleeve is connected to the upper surface of the lower beam by bolts.

[0011] Furthermore, the upper pressure head is fixed to the lower surface of the upper slider by bolts.

[0012] Furthermore, the pressing head is fixed to the core rod by bolts.

[0013] Furthermore, the core-pulling cylinder piston rod is threadedly connected to the core rod.

[0014] The beneficial effects of the present invention are as follows: by setting a servo motor and an automatic control system, the gear plate and the servo motor are connected through a gear transmission, and the automatic control system can control the accuracy of the up and down rotation of the gear plate, thereby enabling the hydraulic press to automatically add and subtract materials while ensuring the accuracy of the hydraulic press's addition and subtraction of materials; the support ring is two opposing semicircular steel rings, and the support ring is located in a circular groove set in the inner ring of the gear plate. The up and down movement of the gear plate can drive the support ring to move up and down. When the down pressure head needs to be replaced, it is only necessary to remove the two semicircular support rings and then remove the core rod, and the down pressure head will be separated from the female template, thereby reducing the replacement time of the down pressure head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the ejection cylinder of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the cross section of the gear plate and support ring of the utility model;

[0018] Figure 4 It is a schematic diagram of the matching relationship between the gear plate and the servo motor of the utility model.

[0019] Description of the drawings: main cylinder 1, upper beam 2, upper slider 3, upper pressure head 4, lower pressure head 5, female template 6, core rod 7, lower slider 8, ejector cylinder 9, lower beam 10, core pulling cylinder piston rod 11, center cylinder piston rod 12, support ring 13, gear plate 14, guide sleeve 15, cylinder body 16, servo motor 17, column 18, circular groove 19. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1 As shown, the utility model discloses a powder molding hydraulic press, including a main cylinder 1, an upper beam 2, an upper slider 3, an upper pressure head 4, a lower pressure head 5, a female mold plate 6, a lower slider 8, a lower beam 10, an ejector cylinder 9 and a column 18. The upper beam 2 is fixedly arranged on the top of the column 18, and the cylinder body of the main cylinder 1 passes through the center position of the upper beam 2 and is fixedly connected to the upper beam 2; the upper slider 3 is slidably arranged on the column 18 below the upper beam 2, and the upper surface of the upper slider 3 is fixedly connected to the piston rod of the main cylinder 1, and the upper pressure head 4 is fixedly provided on the lower surface of the upper slider 3 by bolts. The piston rod of the main cylinder 1 moves up and down to drive the upper slider 3 to move up and down; the female mold plate 6 is fixedly arranged on the column 18 below the upper slider 3, the lower slider 8 is slidably arranged on the column 18 below the female mold plate 6, and the ejector cylinder 9 is fixedly arranged on the lower beam 10 below the lower slider 8; as shown Figure 2 As shown, the ejection cylinder 9 includes: a core-pulling cylinder piston rod 11, a center cylinder piston rod 12, a gear plate 14, a support ring 13, a guide sleeve 15 and a cylinder body 16. The guide sleeve 15 is arranged on the outer surface of the cylinder body 16 and is fixedly connected to the upper surface of the lower beam 10 by bolts. The gear plate 14 is arranged above the guide sleeve 15 and is threadedly connected to the cylinder body 16 and can move up and down along the cylinder body 16; the support ring 13 is arranged above the gear plate 14 and contacts the gear plate 14 and the lower slider 8; the core-pulling cylinder piston rod 11 is arranged at the center position of the center cylinder piston rod 12, the core-pulling cylinder piston rod 11 is threadedly connected to one end of the core rod, and the other end of the core rod is fixedly connected to the lower pressure head 5 by bolts. The lower surface of the lower slider 8 is fixedly connected to the center cylinder piston rod 12. The up and down movement of the center cylinder piston rod 12 drives the lower slider 8, the core-pulling cylinder piston rod 11, the core rod and the lower pressure head 5 to move up and down;

[0022] It also includes a servo motor 17, which is arranged on one side of the gear plate 14, and a gear 20 is provided on the output shaft. The gear plate 14 is meshed with the gear 20 for transmission connection. The support ring 13 is two opposite semicircular support rings 13, and the semicircular support ring 13 is a steel ring; the semicircular support ring 13 is located in a circular groove 19 provided on the inner ring of the gear plate 14. The circular groove 19 is provided to ensure that the support ring will not fall off during the movement, thereby ensuring the safety of the process. The up and down movement of the gear plate 14 can drive the support ring 13 to move up and down.

[0023] The specific process of hydraulic press to realize automatic adding and subtracting materials is as follows:

[0024] like Figure 4 As shown, when the hydraulic press needs to reduce material, the automatic control system controls the servo motor 17 to rotate the gear plate 14 clockwise. At this time, the support ring 13 rises with the gear plate 14, causing the lower limit position of the movement of the center cylinder piston rod 12, the core-pulling cylinder piston rod 11, and the core rod 7 to rise, causing the lower limit of the lower pressure head 5 in the female mold plate 6 to rise, thereby reducing the material discharge, achieving the purpose of automatic material reduction. When the hydraulic press needs to add material, the automatic control system controls the servo motor 17 to rotate the gear plate 14 counterclockwise. The support ring 13 falls with the gear plate 14, causing the lower limit position of the movement of the center cylinder piston rod 12, the core-pulling cylinder piston rod 11, and the core rod 7 to fall, causing the lower limit of the lower pressure head 5 in the female mold plate 6 to fall, thereby increasing the material discharge, achieving the purpose of automatic material addition.

[0025] The specific process of the hydraulic press to quickly replace the lower pressure head is as follows:

[0026] When replacing the lower pressure head, the staff only needs to operate the ejection cylinder 9 to slightly raise the center cylinder piston rod 12 and the lower slider 8. The raising height is generally slightly greater than the height of the circular groove. At this time, the staff lifts the support ring 13, takes out the two semicircular support rings 13 from the circular groove, and then directly removes the support ring 13. Since the support ring 13 determines the lower limit of movement of the lower slider 8 and the center cylinder piston rod 12, after removing the support ring 13, the core rod located on the center cylinder piston rod 12 can have enough space to fall, and the lower pressure head 5 can be separated from the female mold plate and replaced. Therefore, during the replacement process, it is only necessary to remove the support ring 13 and the core rod 7, so that the lower pressure head 5 is separated from the female mold plate 6, and the lower pressure head 5 is replaced. The whole process only takes about ten minutes, which greatly shortens the replacement time and realizes the rapid mold change function.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A powder molding hydraulic press, comprising a master cylinder, an upper beam, an upper slider, an upper pressure head, a lower pressure head, a female mold plate, a lower slider, a lower beam, an ejector cylinder and a column, wherein the upper beam is fixedly arranged on the top of the column, the cylinder body of the master cylinder passes through the center position of the upper beam and is fixedly connected to the upper beam; the upper slider is slidably arranged on the column below the upper beam, the upper surface of the upper slider is fixedly connected to the piston rod of the master cylinder, the upper pressure head is fixedly arranged on the lower surface of the upper slider, and the piston rod of the master cylinder moves up and down to drive the upper slider to move up and down and further drive the upper pressure head to move up and down; the female mold plate is fixedly arranged on the column below the upper slider, the lower slider is slidably arranged on the column below the female mold plate, and the ejector cylinder is fixedly arranged on the lower beam below the lower slider; the ejector cylinder comprises: The piston rod of the core-pulling cylinder, the piston rod of the center cylinder, the gear plate, the support ring, the guide sleeve and the cylinder body, the guide sleeve is arranged on the outer surface of the cylinder body and is fixedly connected to the upper surface of the lower beam; the gear plate is arranged above the guide sleeve and is threadedly connected to the cylinder body and can move up and down along the cylinder body; the support ring is arranged above the gear plate and is in contact with the gear plate and the lower slider; the piston rod of the core-pulling cylinder is arranged at the center position of the piston rod of the center cylinder, the piston rod of the core-pulling cylinder is connected to one end of the core rod, and the other end of the core rod is fixedly connected to the lower pressure head; the lower surface of the lower slider is fixedly connected to the piston rod of the center cylinder, and the up and down movement of the piston rod of the center cylinder drives the lower slider, the piston rod of the core-pulling cylinder, the core rod and the lower pressure head to move up and down; It is characterized in that: it also includes a servo motor, a gear is provided on the output shaft of the servo motor, the gear plate is meshed with the gear, the support ring is two opposite semicircular support rings, the semicircular support rings are located in the circular groove provided on the inner ring of the gear plate, and the up and down movement of the gear plate can drive the support ring to move up and down.

2. The powder forming hydraulic press according to claim 1, characterized in that: The servo motor is arranged on one side of the gear plate.

3. The powder forming hydraulic press according to claim 1, characterized in that: The semicircular support ring is a steel ring.

4. The powder forming hydraulic press according to claim 1, characterized in that: The guide sleeve is connected to the upper surface of the lower beam through bolts.

5. The powder forming hydraulic press according to claim 1, characterized in that: The upper pressing head is fixed to the lower surface of the upper sliding block by bolts.

6. The powder forming hydraulic press according to claim 1, characterized in that: The pressing head is fixed on the core rod by bolts.

7. The powder forming hydraulic press according to claim 1, characterized in that: The core-pulling cylinder piston rod is threadedly connected to the core rod.

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