CN216297880U - Single-rod ejection and lower ejection device - Google Patents
Single-rod ejection and lower ejection device Download PDFInfo
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- CN216297880U CN216297880U CN202122886085.6U CN202122886085U CN216297880U CN 216297880 U CN216297880 U CN 216297880U CN 202122886085 U CN202122886085 U CN 202122886085U CN 216297880 U CN216297880 U CN 216297880U
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- guide sleeve
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Abstract
The utility model discloses a single-rod ejection and lower ejection device which comprises a driving assembly, a guide sleeve and a lower ejection rod arranged in the guide sleeve, wherein the guide sleeve is fixed in a through hole, and the through hole is vertically formed in the middle of a workbench base plate and a base; the inner wall of the guide sleeve and the outer wall of the lower ejector rod are provided with adaptive step structures, and the lower ejector rod is suspended in the guide sleeve through the step structures; the driving assembly is arranged below the lower ejection rod, and when the lower ejection is needed, the driving assembly pushes the lower ejection rod to ascend so as to eject the workpiece. The utility model has simple structure and convenient installation and disassembly; the performance is reliable, and the universality is strong; saving labor and time, short manufacturing and installation period and low cost.
Description
Technical Field
The utility model belongs to the technical field of forging machinery, relates to structure and performance improvement of a workpiece lower ejection part, and particularly relates to a single-rod ejection lower ejection device.
Background
A hot die forging press belongs to forging and pressing mechanical equipment, and is a die forging press applied to the field of hot forging in a broad sense. The following can be classified according to structural and performance differences: mechanical and crank-link presses, which are also known in the narrow sense as hot die forging presses; electric screw press and hydraulic press. The hot die forging press has the advantages of high precision, high material utilization rate and the like in the industries of vehicles, internal combustion engines, ships, aviation, mining machinery and the like, and is widely applied to die forging and finishing forgings of metal materials.
The lower ejection device of the early forging press is a mechanical ejection mechanism. The cam is adopted to rotate, and the swing shaft is driven to swing around the axis of the swing shaft through the upper lever, the pull rod and the lower lever, so that the material ejecting rod is pushed to eject. The structure has many transmission chains, poor transmission precision and no automatic stroke adjustment.
The existing lower ejection device of forging machinery adopts multi-ejector-rod ejection. As shown in figure 1, the center of the base plate and the center of the base are respectively provided with a guide sleeve and an ejector rod, and the guide sleeve at the center of the base is fixed by a groove-shaped set screw at the conical end. The lower ejection device of the screw press comprises an ejection base with three step holes, a guide copper sleeve arranged in two step holes in the lower part of the ejection base, a connecting plate arranged on the bottom surface of the ejection base, an ejection oil cylinder body arranged on the connecting plate, a guide pillar arranged in an inner hole of the guide copper sleeve, a joint arranged in a concave groove in the middle of the guide pillar and connected with a piston rod through a bolt, a joint pressing plate arranged at the bottom of the guide pillar, a supporting plate arranged on the top surface of the guide pillar, an ejection rod arranged above the supporting plate and a stroke control device arranged on the side surface of the base of the screw press.
Above-mentioned liftout device is according to user's use feedback, because of transmission link and part are more, and installation and dismantlement are more troublesome, have also increased manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a single-rod ejection and ejection device, which is used for solving the problem that the existing ejection device is troublesome to mount and dismount.
In order to realize the purpose of the utility model, the following technical scheme is adopted:
the single-rod ejection lower ejection device comprises a driving assembly, a guide sleeve and a lower ejection rod arranged in the guide sleeve, wherein the guide sleeve is fixed in a through hole, and the through hole is vertically formed in the middle of a workbench base plate and a base; the inner wall of the guide sleeve and the outer wall of the lower ejector rod are provided with adaptive step structures, and the lower ejector rod is suspended in the guide sleeve through the step structures; the driving assembly is arranged below the lower ejection rod, and when the lower ejection is needed, the driving assembly pushes the lower ejection rod to ascend so as to eject the workpiece.
In order to further realize the purpose of the utility model, the following technical scheme can be adopted:
the single-rod ejection and lower ejection device is characterized in that the through hole and the guide sleeve are positioned in the center positions of the workbench base plate and the base.
According to the single-rod ejection and lower ejection device, the step structures of the inner wall of the guide sleeve and the outer wall of the lower ejection rod are single steps.
According to the single-rod ejection lower ejection device, the driving assembly is a hydraulic cylinder or an air cylinder, and a piston rod of the driving assembly is located at the lower end of the lower ejection rod.
The single-rod ejection and ejection device is characterized in that the guide sleeve is a copper sleeve.
Compared with the prior art, the utility model has the advantages that:
the utility model has simple structure and convenient installation and disassembly; the performance is reliable, and the universality is strong; saving labor and time, short manufacturing and installation period and low cost. Structurally, only one guide sleeve is arranged on a base plate of the workbench and a central through hole of the base, the lower ejector rod is provided with steps and is arranged in the guide sleeve, and the lower ejector rod is hung at the central position of the base of the equipment by utilizing the steps on the inner wall of the guide sleeve. The guide sleeve and the workbench backing plate are positioned and installed in a transition fit mode, and the lower ejector rod and the guide sleeve slide up and down in a clearance fit mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic structural diagram of a conventional lower ejector;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic view of the lower ejector pin of fig. 2 after it has been raised.
Reference numerals: 11-a first guide sleeve, 12-a mandril, 13-a second guide sleeve, 14-a guide column and 15-a slotted screw; 21-a guide sleeve, 22-a lower ejector rod, 23-a driving assembly, 231-a piston rod, 24-a workbench base plate and 25-a base.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the conventional lower ejector device adopts a multi-ejector pin for ejecting. A guide sleeve and a mandril, namely a first guide sleeve 11 and the mandril 12 are respectively arranged at the center of the worktable backing plate 24 and the center of the base 25; the second guide sleeve 13, the guide column 14 and the second guide sleeve 13 at the center of the base 25 are fixed by a slotted screw 15 with a conical end.
The first guide sleeve 11 and the ejector rod 12 are arranged in a large number of transmission links and parts; the second guide sleeve 13, the guide post 14 and the like are troublesome to mount and dismount, and the production and manufacturing cost is increased.
As shown in fig. 2 and fig. 3, the single-rod ejecting and lower ejecting device disclosed in this embodiment includes a driving assembly 23, a guide sleeve 21, and a lower ejecting rod 22 installed in the guide sleeve 21.
The driving component is arranged below the lower ejection rod 22, and when the lower ejection is needed, the driving component pushes the lower ejection rod 22 to ascend so as to eject the workpiece.
The guide sleeve 21 is the same as the existing first guide sleeve 11 and second guide sleeve 13 in terms of action and manufacturing materials, and plays roles of guiding and limiting the lifting of the lower ejector rod 22, so that the moving accuracy of the lower ejector rod 22 is improved. The lower ejector pin 22 and the guide sleeve 21 slide up and down with clearance fit.
In order to prevent abrasion, a rubber sleeve can be arranged between the lower ejector rod 22 and the inner wall of the guide sleeve 21. Meanwhile, the guide sleeve 21 is a copper sleeve to ensure the strength and the high temperature resistance.
The guide sleeve 21 is fixed in the through hole, and the through hole is vertically arranged at the central positions of the workbench base plate 24 and the base 25. The through holes of the working table base plate 24 and the base 25 are coaxial, and the upper end of the through hole of the working table base plate 24 is provided with a step which is matched with the step part of the outer wall of the guide sleeve 21. When the device is installed, the guide sleeve 21 is placed in the through hole and fixed.
The inner wall of the guide sleeve 21 and the outer wall of the lower ejector rod 22 are provided with adaptive step structures, and the lower ejector rod 22 is suspended in the guide sleeve 21 through the step structures. The step structure of the inner wall of the guide sleeve 21 and the outer wall of the lower ejector rod 22 can be multi-step, but the processing cost and the structure of the guide sleeve and the outer wall of the lower ejector rod are increased correspondingly.
In this embodiment, the step structure between the inner wall of the guide sleeve 21 and the outer wall of the lower ejector rod 22 is a single step. The suspension and lifting actions of the lower ejector rod 22 in the guide sleeve 21 are met by adopting a single step.
With continued reference to fig. 3, the drive assembly in this embodiment employs an air cylinder, with the piston rod 231 of the drive assembly located at the lower end of the lower ejector pin 22. When the workpiece in the lower die cavity needs to be ejected, compressed air enters the lower cavity of the air cylinder to push the piston rod 231 and the lower ejector rod 22 to ascend together.
Structurally, the single-rod ejecting and ejecting device is provided with the guide sleeve 21 only in the through hole in the center of the workbench base plate 24 and the base 25, the lower ejecting rod 22 is provided with steps and is arranged in the guide sleeve 21, and the lower ejecting rod 22 is hung in the center of the equipment base 25 by the steps on the inner wall of the guide sleeve 21. Therefore, the utility model has simple structure and convenient installation and disassembly; the performance is reliable, and the universality is strong; saving labor and time, short manufacturing and installation period and low cost.
The technical contents not described in detail in the present invention are all known techniques.
Claims (5)
1. The single-rod ejection lower ejection device comprises a driving assembly, a guide sleeve and a lower ejection rod arranged in the guide sleeve, and is characterized in that the guide sleeve is fixed in a through hole, and the through hole is vertically formed in the middle of a workbench base plate and a base; the inner wall of the guide sleeve and the outer wall of the lower ejector rod are provided with adaptive step structures, and the lower ejector rod is suspended in the guide sleeve through the step structures; the driving assembly is arranged below the lower ejection rod, and when the lower ejection is needed, the driving assembly pushes the lower ejection rod to ascend so as to eject the workpiece.
2. The single-rod ejector down-lift device of claim 1, wherein the through-hole and guide sleeve are located in the center of the table pad and base.
3. The single-rod ejection lower ejector device according to claim 1, wherein the step structure of the inner wall of the guide sleeve and the outer wall of the lower ejector rod is a single step.
4. The single-rod ejection lower ejector device of claim 1, wherein the drive assembly is a hydraulic cylinder or an air cylinder, and a piston rod of the drive assembly is located at a lower end of the lower ejector rod.
5. The single-rod ejector down-lift device of claim 1, wherein said guide sleeve is a copper sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886085.6U CN216297880U (en) | 2021-11-23 | 2021-11-23 | Single-rod ejection and lower ejection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886085.6U CN216297880U (en) | 2021-11-23 | 2021-11-23 | Single-rod ejection and lower ejection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216297880U true CN216297880U (en) | 2022-04-15 |
Family
ID=81122639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122886085.6U Active CN216297880U (en) | 2021-11-23 | 2021-11-23 | Single-rod ejection and lower ejection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216297880U (en) |
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2021
- 2021-11-23 CN CN202122886085.6U patent/CN216297880U/en active Active
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