CN217121614U - Hot extrusion molding device for blank of oil cylinder barrel of engineering machinery - Google Patents
Hot extrusion molding device for blank of oil cylinder barrel of engineering machinery Download PDFInfo
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- CN217121614U CN217121614U CN202220950324.1U CN202220950324U CN217121614U CN 217121614 U CN217121614 U CN 217121614U CN 202220950324 U CN202220950324 U CN 202220950324U CN 217121614 U CN217121614 U CN 217121614U
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Abstract
The utility model discloses an engineering machine tool hydro-cylinder blank hot extrusion forming device, including the press piston rod, still include the shaping module, the press piston rod with the coaxial setting of shaping module, the coaxial drift that is used for hot extrusion mechanical engineering hydro-cylinder blank to warp the tip that is provided with on the press piston rod, the shaping module includes fixed die, moving die, fixed die, moving die cross-section all are semi-circular, a cylinder type cavity is enclosed into jointly to fixed die, moving die, just fixed die, moving die are close to the one end of drift is provided with and is used for making mechanical engineering hydro-cylinder blank warp the shaping chamber of tip upset. The utility model discloses a shaping module and the press piston rod of coaxial setting to coaxial setting is used for the drift of hot extrusion mechanical engineering hydro-cylinder blank deformation tip on the press piston rod, thereby realizes the local upset forging of engineering machine tool hydro-cylinder, thereby reaches cylinder intensity height, and production cycle is short and efficient effect.
Description
Technical Field
The utility model belongs to the technical field of large-scale engineering machine tool hydro-cylinder forging hot extrusion forming, especially, relate to an engineering machine tool hydro-cylinder blank hot extrusion forming device.
Background
The common methods for manufacturing the cylinder barrel of the oil cylinder of the existing engineering machinery comprise casting, machining, welding and the like.
It has been found that there are some problems and deficiencies in the prior art:
the casting method comprises the following steps: casting, namely, a method of casting molding and then machining; 1. defects such as air holes and cracks can be generated during casting, the rejection rate is high, waste is caused, and the after-sale repair rate is high; 2. the strength of the casting is low, and the cylinder barrel of the oil cylinder of the engineering machinery bears high pressure for a long time, so that the service life is reduced; 3. the casting causes great environmental pollution, and if not necessary, the casting is not advocated.
Secondly, a mechanical processing method comprises the following steps: a method for directly machining a large-diameter pipe material; 1. the pipe material has large diameter and a plurality of specifications and models, and needs to be specially customized, so that the special customization cost is high and the cost is increased; 2. the oil cylinder is produced by adopting a machining process, and the material loss is very serious because the middle part of the oil cylinder is thin; 3. the production process flow is rough turning → heat treatment → fine turning, and has the disadvantages of high labor cost, long production period and influence on the market situation with multiple changes due to large processing allowance and long processing time.
Thirdly, a welding method: the middle cylinder is welded by large-diameter pipe materials at two ends and small-diameter pipe materials at the middle part and then is molded; 1. as with the casting process, the welding port can generate defects such as air holes, cracks and the like, the rejection rate is high, waste and after-sale repair rate are high, and meanwhile, the operation level requirement of a welder is high; 2. the strength of the welding position is low, the cylinder barrel of the oil cylinder of the engineering machinery bears high pressure for a long time, and the service life is reduced; 3. VOCs gas emission is generated during welding, and the pollution to the environment is large, if not necessary, the proposal is not made; 4. the welding tube material also needs special customization, and the special customization expense is high, and the cost is increased.
Based on exist not enough among the prior art, the utility model discloses an engineering machine tool hydro-cylinder blank hot extrusion forming device realizes engineering machine tool hydro-cylinder local upsetting through using one set of hot extrusion forming device, then machining to reach cylinder intensity height, material utilization is high, and production cycle is short, with low costs and efficient effect.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide an engineering machine tool hydro-cylinder blank hot extrusion forming device.
The utility model provides a following technical scheme:
the utility model provides an engineering machine tool hydro-cylinder blank hot extrusion forming device, includes the press piston rod, still includes the shaping module, the press piston rod with the coaxial setting of shaping module, the coaxial drift that is used for hot extrusion machinery engineering hydro-cylinder blank to warp the tip that is provided with on the press piston rod, the shaping module includes fixed die, moving die, fixed die, moving die cross-section all are semicircular, a cylinder type cavity is enclosed into jointly to fixed die, moving die, just fixed die, moving die are close to the one end of drift is provided with and is used for making mechanical engineering hydro-cylinder blank warp the shaping chamber of tip upset.
Preferably, the molding module further comprises a fixed die holder and a movable die holder, wherein the fixed die holder is close to one side of the movable die holder and is provided with a first cavity for accommodating the fixed die, and the movable die holder is close to one side of the fixed die holder and is provided with a second cavity for accommodating the movable die.
Preferably, the fixed molds comprise a first fixed mold and a second fixed mold, the first fixed molds are respectively positioned at two ends of the first cavity, and a plurality of second fixed molds are arranged between the two first fixed molds.
Preferably, the movable molds comprise a first movable mold and a second movable mold, the first movable molds are respectively located at two ends of the second cavity, and a plurality of second movable molds are arranged between the two first movable molds.
Preferably, the inner ring of the first fixed mold is provided with a first forming groove, the inner ring of the first movable mold is provided with a second forming groove, and the forming cavity is formed between the first forming groove and the second forming groove.
Preferably, the punch is connected with the press piston rod through a punch seat.
Preferably, the section of the punch is convex, the outer diameter of the punch at the deformed end of the blank of the mechanical engineering cylinder is the same as the inner diameter of the blank of the mechanical engineering cylinder, and the outer diameter of one end of the punch close to the punch seat is the same as the inner diameter of the forming cavity.
Preferably, the inner diameter of the forming cavity is the same as the outer diameter of the deformed end of the mechanical engineering oil cylinder blank after upsetting.
Preferably, the inner diameter of the cylindrical cavity is the same as the outer diameter of the blank of the mechanical engineering oil cylinder.
Preferably, one end of the punch away from the punch seat is in fillet transition. The punch can conveniently enter the inner ring of the blank of the oil cylinder in the mechanical engineering.
Preferably, the shaping module is kept away from the one end of drift is provided with releases the subassembly, it includes the ejector pin to release the subassembly, the ejector pin with the coaxial setting of shaping module, just the external diameter of ejector pin is not more than the internal diameter of cylinder type cavity, the external diameter of ejector pin is greater than the internal diameter of mechanical engineering hydro-cylinder blank, the ejector pin is kept away from the one end of shaping module is connected with a jar piston rod through the ejector pin pad, a jar piston rod with the coaxial setting of shaping module.
Preferably, one end of the cylindrical cavity, which is far away from the top head, is provided with a die cushion.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model relates to an engineering machine tool hydro-cylinder blank hot extrusion forming device, through the shaping module and the press piston rod of coaxial setting to coaxial setting is used for the drift of hot extrusion machinery engineering hydro-cylinder blank deformation tip on the press piston rod, thereby realizes the local upset forging of engineering machine tool hydro-cylinder, thereby reaches cylinder intensity height, and production cycle is short and efficient effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the cross-sectional structure of the molding module of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure: 1. a piston rod of the press; 2. a punch holder; 3. a punch; 42. fixing a die holder; 44. a movable die holder; 5. a blank of the oil cylinder in mechanical engineering; 6. a first fixed die; 7. a second fixed die; 8. a first movable mold; 9. a second movable mold; 10. a top rod; 11. a jack rod pad; 12. a top cylinder piston rod; 13. and (5) a die cushion.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, an engineering machinery oil cylinder blank hot extrusion molding device comprises a press piston rod 1 and a molding module, wherein the press piston rod 1 and the molding module are coaxially arranged, a punch 3 for hot extrusion of a deformed end portion of a mechanical engineering oil cylinder blank 5 is coaxially arranged on the press piston rod 1, the molding module comprises a fixed die and a movable die, the cross sections of the fixed die and the movable die are semicircular, the fixed die and the movable die jointly enclose a cylindrical cavity, and one end of the fixed die and one end of the movable die, which are close to the punch 3, are provided with a molding cavity for upsetting the deformed end portion of the mechanical engineering oil cylinder blank 5.
The forming die set and the press piston rod are coaxially arranged, and the punch used for hot extrusion of the deformation end part of the mechanical engineering oil cylinder blank is coaxially arranged on the press piston rod, so that local upsetting of the engineering mechanical oil cylinder barrel is realized, and the effects of high strength of the cylinder barrel, short production period and high efficiency are achieved.
The molding module further comprises a fixed die holder 42 and a movable die holder 44, a first cavity for accommodating the fixed die is arranged on one side, close to the movable die holder 44, of the fixed die holder 42, and a second cavity for accommodating the movable die is arranged on one side, close to the fixed die holder 42, of the movable die holder 44.
The fixed dies comprise a first fixed die 6 and a second fixed die 7, the first fixed die 6 is respectively positioned at two ends of the first cavity, and a plurality of second fixed dies 7 are arranged between the two first fixed dies 6.
The movable mould comprises a first movable mould 8 and a second movable mould 9, the first movable moulds 8 are respectively positioned at two ends of the second cavity, and a plurality of second movable moulds 9 are arranged between the two first movable moulds 8. In order to reduce the loss cost of the fixed die and the movable die, the fixed die and the movable die are made into a multi-section split form.
The inner ring of the first fixed die 6 is provided with a first forming groove, the inner ring of the first movable die 8 is provided with a second forming groove, and the forming cavity is formed between the first forming groove and the second forming groove.
The punch 3 is connected with the press piston rod 1 through a punch holder 2.
The section of the punch 3 is convex, the outer diameter of the punch 3 at the deformed end part of the mechanical engineering oil cylinder blank 5 is the same as the inner diameter of the mechanical engineering oil cylinder blank 5, and the outer diameter of one end, close to the punch seat 2, of the punch 3 is the same as the inner diameter of the forming cavity. The punch is used for ensuring the size of an inner hole of the pipe material, and meanwhile, the length of the upsetting part of the pipe material is ensured through the stroke of a piston rod of the pressing machine.
The inner diameter of the forming cavity is the same as the outer diameter of the deformed end of the mechanical engineering oil cylinder blank 5 after upsetting.
The inner diameter of the cylindrical cavity is the same as the outer diameter of the mechanical engineering oil cylinder blank 5. And a certain friction force is formed between the inner wall of the cylindrical cavity chamber and the oil cylinder blank 5 in the mechanical engineering, and the pipe material is prevented from horizontally moving during horizontal upsetting by pressing and maintaining the pressure of the pipe material through a moving die.
And one end of the punch 3, which is far away from the punch seat 2, is in fillet transition. The punch can conveniently enter the inner ring of the mechanical engineering oil cylinder blank 5.
The working principle is as follows: the utility model relates to an engineering machine tool hydro-cylinder blank hot extrusion forming device, step one, design: designing the size of a hot extrusion part according to the size allowance of the finished product of the middle cylinder of a customer, designing a die, calculating the blanking size, and purchasing a pipe material; step two, blanking: sawing the pipe material into the required size by using a band sawing machine; step three, heating: heating the deformed part of one side of the pipe material by using an intermediate frequency heating furnace, wherein the heating length is ensured to be enough in the heating process, and the heating finish forging temperature and the time interval temperature are controlled to be between 800 ℃ and 1200 ℃, so that the product is ensured to be fully deformed, a die cavity is filled, the size can meet the requirement, the heating intermediate frequency furnace body is the prior art, the heating length is ensured, the heating is uniform, the heating is full, the natural temperature difference is formed between a non-heating area and a heating area, the deformation cannot occur in the extrusion process, and the size of the product is unqualified; step four, extrusion: installing a die required for forming on a workbench of a hydraulic press, heating a pipe, putting the pipe heated by a crane into a forming module, starting the hydraulic press, extruding a pipe heating part in a forming cavity, deforming, filling the forming cavity, and shaping, wherein the extruding hydraulic press is also the prior art, the closing height of equipment, the size of the workbench, the pressure tonnage of the equipment and the like are determined, and the loading mode is a vertical loading mode and a horizontal unidirectional loading mode;
step five, repeating the step three and the step four, and heating and forming the other side of the middle cylinder; step six, checking and warehousing: the product quality is ensured by checking the position, appearance and size of the product, and the product is warehoused and delivered after being checked to be qualified.
Example 2
Referring to fig. 3, on the basis of embodiment 1, a push-out assembly is disposed at one end of the forming module, which is away from the punch 3, the push-out assembly includes a push rod 10, the push rod 10 and the forming module are coaxially disposed, an outer diameter of the push rod 10 is not greater than an inner diameter of the cylindrical cavity, the outer diameter of the push rod 10 is greater than an inner diameter of the mechanical engineering cylinder blank 5, one end of the push rod, which is away from the forming module, is connected to a push cylinder piston rod 12 through a push rod pad 11, and the push cylinder piston rod 12 and the forming module are coaxially disposed.
Firstly, before hot extrusion, the distance between the ejector rod 10 and a punch is adjusted according to the length of a forging cylinder barrel, the ejector rod pad is used for protecting an ejector cylinder piston rod and is connected with the ejector rod and the ejector cylinder piston rod, and the whole part mainly has the main function of ejecting a blank of the oil cylinder barrel of the engineering machinery after the deformation end of the forging is formed. The stability during hot extrusion can be further improved.
Example 3
Referring to fig. 4, on the basis of embodiment 2, a mold pad 13 is disposed at an end of the cylindrical chamber away from the plug 3.
When carrying out the hot extrusion to engineering machine tool hydro-cylinder blank other end, dismantle and release the subassembly to install die pad 13, and adjust the distance of die pad 13 apart from the drift according to the length of forging cylinder, stability when can further improve the other end hot extrusion.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be within the technical scope of the present invention, and the technical solution and the inventive concept of the present invention are equivalent to or changed according to the present invention, and all those are included in the scope of the present invention.
Claims (7)
1. The utility model provides an engineering machine tool hydro-cylinder blank hot extrusion forming device, includes press piston rod (1), its characterized in that: still include the shaping module, press piston rod (1) with the coaxial setting of shaping module, coaxial setting is used for thermal extrusion mechanical engineering hydro-cylinder blank (5) to warp drift (3) of tip on press piston rod (1), the shaping module includes fixed mould, moving die utensil, fixed mould, moving die utensil cross-section all are semicircular, a cylinder type cavity is enclosed into jointly to fixed mould, moving die utensil, just fixed mould, moving die utensil are close to the one end of drift (3) is provided with and is used for making mechanical engineering hydro-cylinder blank (5) warp the shaping chamber of tip upset.
2. The engineering machinery oil cylinder barrel blank hot extrusion molding device according to claim 1, wherein the molding module further comprises a fixed die holder (42) and a movable die holder (44), a first cavity for accommodating the fixed die is arranged on one side of the fixed die holder (42) close to the movable die holder (44), and a second cavity for accommodating the movable die is arranged on one side of the movable die holder (44) close to the fixed die holder (42).
3. The engineering machinery oil cylinder barrel blank hot extrusion molding device according to claim 2, wherein the fixed mold comprises a first fixed mold (6) and a second fixed mold (7), the first fixed mold (6) is respectively located at two ends of the first chamber, and a plurality of second fixed molds (7) are arranged between the two first fixed molds (6).
4. The engineering machinery oil cylinder barrel blank hot extrusion molding device according to claim 3, wherein the moving dies comprise a first moving die (8) and a second moving die (9), the first moving die (8) is respectively located at two ends of the second chamber, and a plurality of second moving dies (9) are arranged between the two first moving dies (8).
5. The engineering machinery oil cylinder barrel blank hot extrusion molding device as claimed in claim 4, wherein the inner ring of the first fixed mold (6) is provided with a first molding groove, the inner ring of the first movable mold (8) is provided with a second molding groove, and the molding cavity is formed between the first molding groove and the second molding groove.
6. The engineering machinery oil cylinder barrel blank hot extrusion molding device according to claim 1, wherein the punch (3) is connected with the press piston rod (1) through a punch seat (2).
7. The engineering machinery oil cylinder barrel blank hot extrusion forming device as claimed in claim 6, wherein the cross section of the punch (3) is convex, the outer diameter of the punch (3) at the deformed end of the mechanical engineering oil cylinder blank (5) is the same as the inner diameter of the mechanical engineering oil cylinder blank (5), and the outer diameter of the end of the punch (3) close to the punch holder (2) is the same as the inner diameter of the forming cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220950324.1U CN217121614U (en) | 2022-04-24 | 2022-04-24 | Hot extrusion molding device for blank of oil cylinder barrel of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220950324.1U CN217121614U (en) | 2022-04-24 | 2022-04-24 | Hot extrusion molding device for blank of oil cylinder barrel of engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217121614U true CN217121614U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220950324.1U Active CN217121614U (en) | 2022-04-24 | 2022-04-24 | Hot extrusion molding device for blank of oil cylinder barrel of engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217121614U (en) |
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- 2022-04-24 CN CN202220950324.1U patent/CN217121614U/en active Active
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