CN217798344U - Large-scale normal and oblique tee extrusion equipment - Google Patents
Large-scale normal and oblique tee extrusion equipment Download PDFInfo
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- CN217798344U CN217798344U CN202123360462.9U CN202123360462U CN217798344U CN 217798344 U CN217798344 U CN 217798344U CN 202123360462 U CN202123360462 U CN 202123360462U CN 217798344 U CN217798344 U CN 217798344U
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Abstract
The utility model discloses a large-scale just tee bend extrusion equipment to one side belongs to tee bend shaping technical field. The large-scale orthorhombic three-way extrusion forming equipment comprises an upper oil cylinder, an upper tire is arranged on the upper oil cylinder, a blank is placed on a lower tire, and a jacking oil cylinder is arranged below the lower tire. A first side oil cylinder and a second side oil cylinder are arranged at two ends of the material blank, a first push head and a second push head which are used for jacking the material blank are respectively arranged on the end heads of the first side oil cylinder and the second side oil cylinder, a water channel is arranged inside the second push head, the water channel is connected with a water pool through a water inlet, and a water outlet of the water channel is over against a middle pipe cavity of the material blank; the upper oil cylinder, the side oil cylinder I, the side oil cylinder II and the jacking oil cylinder are all connected with an oil tank through control valves, and a motor oil pump is arranged on the oil tank. The utility model adopts the above-mentioned large-scale positive tee bend extrusion equipment to one side can solve large-scale positive tee bend and the difficult problem of tee bend production to one side.
Description
Technical Field
The utility model belongs to the technical field of the tee bend shaping technique and specifically relates to a large-scale just oblique tee bend extrusion equipment is related to.
Background
The tee joint is also called a pipe fitting tee joint or a tee pipe fitting, a tee joint and the like, is mainly used for changing the direction of fluid and is used at a branch pipe of a main pipeline. The traditional tee joint is generally produced by adopting a forging method, and the small-sized positive tee joint can also be formed by extrusion. The forging method is adopted to produce the tee joint, and has the defects of low raw material utilization rate, long process time and high energy consumption. And the forging mode can not produce large-scale positive tee and oblique tee. The existing press machine also limits the production and manufacture of large-scale positive tee joints and inclined tee joints.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a large-scale positive tee bend extrusion equipment to one side solves large-scale positive tee bend and the difficult problem of tee bend production to one side.
In order to achieve the purpose, the utility model provides a large orthorhombic three-way extrusion forming device, which comprises an upper oil cylinder, an upper tire arranged on a telescopic rod of the upper oil cylinder, a blank arranged on a lower tire matched with the upper tire, and a jacking oil cylinder convenient for taking out a workpiece arranged below the lower tire; the two ends of the material blank are respectively provided with a first side oil cylinder and a second side oil cylinder which tightly push and fix the material blank, the end heads of the first side oil cylinder and the second side oil cylinder are respectively provided with a first push head and a second push head which push and press the material blank, a water channel is arranged inside the second push head, the water channel is connected with a water pool through a water inlet, the water pool is provided with a high-pressure water pump, and a water outlet of the water channel is over against a middle pipe cavity of the material blank; the upper oil cylinder, the side oil cylinder I, the side oil cylinder II and the jacking oil cylinder are all connected with an oil tank through control valves, and a motor oil pump is arranged on the oil tank.
Preferably, the motor oil pump comprises a first motor oil pump corresponding to the upper oil cylinder, a second motor oil pump corresponding to the first side oil cylinder, a third motor oil pump corresponding to the second side oil cylinder and a fourth motor oil pump corresponding to the jacking oil cylinder.
Preferably, the system also comprises a master control console, and the master control console is electrically connected with the control valve, the water pump and the motor oil pump.
Preferably, the pressure of the upper oil cylinder, the pressure of the side oil cylinder I and the pressure of the side oil cylinder II are not lower than 7000 tons, and the total pressure of the press is not lower than 20000 tons; the maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, the effective stroke is 1000mm, and the production of the orthorhombic three-way pipe fitting with the caliber of 200-2000mm and the wall thickness of 10-200mm is met.
The forming method of the large forward inclined tee extrusion forming equipment comprises the following steps:
s1, determining specifications of an upper tire, a lower tire, a first push head and a second push head which are selected according to the size of a produced tee joint;
s2, fixedly mounting an upper tire on an upper oil cylinder, fixedly mounting a lower tire on a base, fixedly mounting a first push head on a first side oil cylinder, and fixedly mounting a second push head on a second side oil cylinder;
s3, coating a lubricant on the inner surface and the outer surface of the blank, and placing the blank in the lower tire;
s4, under the action of the general control console, once the motor oil pump is started, the upper oil cylinder is controlled to drive the upper tire to move downwards through the control valve, and the upper tire is in sealing contact with the lower tire;
s5, under the action of a master console, a second motor oil pump and a third motor oil pump are started, a first side oil cylinder and a second side oil cylinder are controlled to respectively drive a first push head and a second push head to move in the direction approaching to the blank through a control valve, and the first push head and the second push head respectively seal the end face of the blank;
s6, starting the high-pressure water pump through the master console, and enabling water in the water tank to enter the water channel through the water inlet and then enter the cavity of the material blank;
s7, adjusting the pressure of the upper oil cylinder, the pressure of the first side oil cylinder and the pressure of the second side oil cylinder to be 10MPa-30MPa and the pressure of water to be 20MPa-100MPa through a master console;
s8, under the action of lateral pressure and high-pressure water, the blank flows to the branch pipe along the mold cavities in the upper tire and the lower tire to deform, and a tee joint prototype is formed;
s9, after the height of the branch pipe meets the set requirement, the pressure of the first side oil cylinder and the second side oil cylinder and the pressure of high-pressure water are removed, the upper tire is driven by the upper oil cylinder to move upwards, and the upper tire is separated from the lower tire;
and S10, jacking the tee joint by the jacking oil cylinder under the action of the master control table, and ejecting the formed tee joint out of the lower tire to complete the manufacture of the tee joint.
Preferably, when the wall thickness of the blank is more than or equal to 25mm and the one-step molding cannot meet the requirement, heating the blank, then cooling to room temperature, and repeating the steps S4-S9.
Preferably, the heated preform is first furnace cooled to a temperature below 450 ℃ and then taken out of the furnace and air cooled to room temperature.
A large-scale just oblique tee bend extrusion equipment's advantage and positive effect be:
1. the pressure of the upper oil cylinder, the pressure of the side oil cylinder I and the pressure of the side oil cylinder II are not lower than 7000 tons, and the total pressure of the press reaches 20000 tons. The maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, and the effective stroke is 1000mm. Can meet the production of the straight tee and the inclined tee with the caliber of 200-2000mm and the wall thickness of 10-200 mm.
2. The normal and oblique tee joint produced has the advantages of improving the utilization rate of materials to 90 percent, shortening the process time by 30 percent, along with low cost, low energy consumption and high utilization rate of raw materials.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a large forward-inclined three-way extrusion molding device of the utility model.
Reference numerals
1. An oil tank; 2. a control valve; 3. a first motor oil pump; 4. a second motor oil pump; 5. a motor oil pump III; 6. a motor oil pump IV; 7. feeding an oil cylinder; 8. a first side oil cylinder; 9. a second side oil cylinder; 10. a jacking oil cylinder; 11. discharging the tire; 12. mounting a tire; 13. material blanks; 14. pushing a head I; 15. a second pushing head; 16. a pool; 17. a water inlet; 18. a water channel; 19. and a master control console.
Detailed Description
The technical solution of the present invention is further explained by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Fig. 1 is a schematic structural view of an embodiment of a large forward-inclined three-way extrusion molding device of the utility model. As shown in the figure, the large orthorhombic tee extrusion forming equipment comprises an upper oil cylinder 7, and an upper tire 12 is arranged on a telescopic rod of the upper oil cylinder 7. The blank 13 is placed on a lower tire 11 matched with the upper tire 12, and a jacking cylinder 10 facilitating the taking out of the workpiece is arranged below the lower tire 11. Two ends of the blank 13 are respectively provided with a first side oil cylinder 8 and a second side oil cylinder 9 which tightly press and fix the blank 13, the ends of the first side oil cylinder 8 and the second side oil cylinder 9 are respectively provided with a first push head 14 and a second push head 15 which press and fix the blank 13, and the first push head 14 and the second push head 15 are used for sealing and fixing two ends of the blank 13. A water channel 18 is arranged inside the second pushing head 15, the water channel 18 is connected with a water tank 16 through a water inlet 17, and a high-pressure water pump is arranged on the water tank 16. The water outlet of the water channel 18 is opposite to the middle pipe cavity of the blank 13. The water in the water tank 16 is sent into the water channel 18 through the water inlet 17 under the action of the high-pressure water pump, and then enters the tube cavity of the blank 13 through the water channel 18 to pressurize and form the blank 13.
Go up hydro-cylinder 7, side hydro-cylinder 8, side hydro-cylinder two 9 and jacking cylinder 10 and all be connected with oil tank 1 through control valve 2, be provided with the motor oil pump on the oil tank 1. The motor oil pump comprises a motor oil pump I3 corresponding to the upper oil cylinder 7, a motor oil pump II 4 corresponding to the side oil cylinder I8, a motor oil pump III 5 corresponding to the side oil cylinder II 9 and a motor oil pump IV 6 corresponding to the jacking oil cylinder 10. The upper oil cylinder 7, the side oil cylinder I8, the side oil cylinder II 9 and the jacking oil cylinder 10 are hydraulic cylinders with existing structures.
The control valve 2, the water pump, the first motor oil pump 3, the second motor oil pump 4, the third motor oil pump 5 and the fourth motor oil pump 6 are all electrically connected with the master console 19 according to the needs by adopting the existing technology, and the operation of the equipment is controlled by the master console 19.
The pressure of the upper oil cylinder 7, the pressure of the first side oil cylinder 8 and the pressure of the second side oil cylinder 9 are not lower than 7000 tons, and the total pressure of the press reaches 20000 tons. The maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, and the effective stroke is 1000mm; i.e. the maximum opening between the connecting platforms on which the upper and lower tires are mounted is 3000mm. Can meet the production of the tee and the inclined tee pipe with the caliber of 200-2000mm and the wall thickness of 10-200 mm.
The forming method of the large-scale orthorhombic tee extrusion forming equipment comprises the following steps of:
s1, determining the specifications of the selected upper tire 12, the selected lower tire 11, the selected first push head 14 and the selected second push head 15 according to the size of the produced tee joint.
S2, an upper tire 12 is fixedly arranged on the upper oil cylinder 7, a lower tire 11 is fixedly arranged on the base, a first push head 14 is fixedly arranged on a first side oil cylinder 8, and a second push head 15 is fixedly arranged on a second side oil cylinder 9.
And S3, coating a lubricant on the inner surface and the outer surface of the blank 13, and placing the blank 13 in the lower tire 11. The lubricant is lead powder, the main raw material of the lead powder is graphite, and the lead powder has a good lubricating effect and lubricates the blank 13.
And S4, under the action of the master console 19, the first motor oil pump 3 is started, the upper oil cylinder 7 is controlled through the control valve 2 to drive the upper tire 12 to move downwards, the upper tire 12 is in sealing contact with the lower tire 11, and the blank 13 is clamped between the upper tire 12 and the lower tire 11. The upper tire 12 and the lower tire 11 are provided with a cavity for molding a workpiece.
S5, under the action of the master console 19, the motor oil pump II 4 and the motor oil pump III 5 are started simultaneously, the side oil cylinder I8 and the side oil cylinder II 9 are controlled to respectively drive the push head I14 and the push head II 15 to move towards the direction close to the material blank 13 through the control valve 2, and the push head I14 and the push head II 15 respectively seal the end face of the material blank 13. The first pushing head 14 and the second pushing head 15 seal the blank 13, so that a sealed cavity is formed inside the blank 13, and the blank 13 flows and deforms under the action of water pressure to be molded in the cavity.
S6, starting the high-pressure water pump through the master console 19, and enabling water in the water pool 16 to enter the water channel 18 through the water inlet 17 and then enter the cavity of the blank 13.
S7, adjusting the pressure of the upper oil cylinder 7, the pressure of the first side oil cylinder 8 and the pressure of the second side oil cylinder 9 to be 10MPa-30MPa and the pressure of water to be 20MPa-100MPa through the master control console 19.
And S8, under the action of the lateral pressure and the pressure of high-pressure water, the blank 13 flows to the branch pipe along the mold cavity in the upper tire 12 and the lower tire 11 to deform, so that a three-way prototype is formed.
And S9, after the height of the branch pipe meets the set requirement, the pressure of the first side oil cylinder 8 and the second side oil cylinder 9 and the pressure of high-pressure water are removed, the upper oil cylinder 7 drives the upper tire 12 to move upwards, and the upper tire 12 is separated from the lower tire 11.
S10, jacking the jacking oil cylinder 10 under the action of the master console 19, and jacking the formed tee joint out of the lower tire 11 to complete the manufacture of the tee joint. The tee joint can be trimmed and shaped by a cutting machine subsequently.
And when the wall thickness of the blank 13 is more than or equal to 25mm and the one-step forming cannot meet the requirement, heating the blank 13, cooling to room temperature, and repeating the steps S4-S9. The heating temperature is set according to different material of the blank 13, and the heating aims to eliminate the internal stress generated during the machining of the blank 13, reduce the work hardening of the blank 13 and improve the deformability of the blank 13. The heated preform 13 is first cooled to below 450 ℃ in the furnace and then taken out of the furnace and air-cooled to room temperature.
Examples
The forming method will be described in detail by taking an example of cold extrusion of an equal-diameter tee with phi 610mm and 9.53mm.
The steel pipe is a No. 20 steel pipe manufactured by GB/T8163 standard. The preform 13 was 610mm × 12mm in size and 1400mm in length.
The forming method of the orthorhombic tee extrusion forming equipment comprises the following steps of:
s1, determining the specifications of the selected upper tire 12, the selected lower tire 11, the selected first push head 14 and the selected second push head 15 according to the size of the produced tee joint.
S2, an upper tire 12 is fixedly arranged on the upper oil cylinder 7, a lower tire 11 is fixedly arranged on the base, a first push head 14 is fixedly arranged on a first side oil cylinder 8, and a second push head 15 is fixedly arranged on a second side oil cylinder 9.
And S3, coating lead powder on the inner surface and the outer surface of the blank 13, and placing the blank 13 in the lower tire 11.
And S4, under the action of the master console 19, the first motor oil pump 3 is started, the upper oil cylinder 7 is controlled through the control valve 2 to drive the upper tire 12 to move downwards, and the upper tire 12 is in sealing contact with the lower tire 11.
S5, under the action of the master console 19, the motor oil pump II 4 and the motor oil pump III 5 are started simultaneously, the control valve 2 controls the side oil cylinder I8 and the side oil cylinder II 9 to respectively drive the pushing head I14 and the pushing head II 15 to move towards the direction close to the material blank 13, and the pushing head I14 and the pushing head II 15 respectively seal the end face of the material blank 13.
S6, starting the high-pressure water pump through the master console 19, and enabling water in the water pool 16 to enter the water channel 18 through the water inlet 17 and then enter the cavity of the blank 13.
S7, adjusting the pressure of the upper oil cylinder 7, the pressure of the first side oil cylinder 8 and the pressure of the second side oil cylinder 9 to be 10MPa-30MPa and the pressure of water to be 20MPa-100MPa through the master control console 19.
And S8, under the action of the lateral pressure and the pressure of high-pressure water, the blank 13 flows to the branch pipe along the mold cavity in the upper tire 12 and the lower tire 11 to deform, so that a three-way prototype is formed.
S9, when the height of the branch pipe meets the set requirement, the requirements of GB/T12459-2017 and GB/T13401-2017 are met, the pressure of the first side oil cylinder 8 and the second side oil cylinder 9 and the pressure of high-pressure water are removed, the upper oil cylinder 7 drives the upper tire 12 to move upwards, and the upper tire 12 is separated from the lower tire 11.
S10, jacking the jacking oil cylinder 10 under the action of the master console 19, and jacking the formed tee joint out of the lower tire 11 to complete the manufacture of the tee joint. The tee joint can be trimmed and shaped by a cutting machine subsequently.
And when the wall thickness of the blank 13 is more than or equal to 25mm and the one-step forming cannot meet the requirement, heating the blank 13, firstly cooling the heated blank 13 to below 450 ℃ along with the furnace, taking the blank out of the furnace and cooling the blank to the room temperature, and repeating the steps S4-S9 until the height of the branch pipe of the three-way pipe meets the requirement.
Therefore, the utility model discloses an above-mentioned large-scale just tee bend extrusion equipment to one side can solve large-scale just tee bend and the difficult problem of tee bend production to one side.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced with equivalents, and these modifications or replacements do not make the modified technical solution depart from the spirit and scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a large-scale just oblique tee bend extrusion equipment which characterized in that: the device comprises an upper oil cylinder, an upper tire is arranged on a telescopic rod of the upper oil cylinder, a material blank is placed on a lower tire matched with the upper tire, and a jacking oil cylinder convenient for taking out a workpiece is arranged below the lower tire; the two ends of the material blank are respectively provided with a first side oil cylinder and a second side oil cylinder which tightly push and fix the material blank, the end heads of the first side oil cylinder and the second side oil cylinder are respectively provided with a first push head and a second push head which push and press the material blank, a water channel is arranged inside the second push head, the water channel is connected with a water pool through a water inlet, the water pool is provided with a high-pressure water pump, and a water outlet of the water channel is over against a middle pipe cavity of the material blank; the upper oil cylinder, the side oil cylinder I, the side oil cylinder II and the jacking oil cylinder are all connected with an oil tank through control valves, and a motor oil pump is arranged on the oil tank.
2. The large-scale orthorhombic tee extrusion forming equipment as claimed in claim 1, wherein: the motor oil pump comprises a first motor oil pump corresponding to the upper oil cylinder, a second motor oil pump corresponding to the side oil cylinder, a third motor oil pump corresponding to the side oil cylinder and a fourth motor oil pump corresponding to the jacking oil cylinder.
3. The large-scale orthorhombic tee extrusion forming device according to claim 1, characterized in that: the system also comprises a master control console, and the master control console is electrically connected with the control valve, the water pump and the motor oil pump.
4. The large-scale orthorhombic tee extrusion forming equipment as claimed in claim 1, wherein: the pressure of the upper oil cylinder, the pressure of the side oil cylinder I and the pressure of the side oil cylinder II are not lower than 7000 tons, and the total pressure of the press is not lower than 20000 tons; the maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, the effective stroke is 1000mm, and the production of the orthorhombic three-way pipe fitting with the caliber of 200-2000mm and the wall thickness of 10-200mm is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123360462.9U CN217798344U (en) | 2021-12-29 | 2021-12-29 | Large-scale normal and oblique tee extrusion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123360462.9U CN217798344U (en) | 2021-12-29 | 2021-12-29 | Large-scale normal and oblique tee extrusion equipment |
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| Publication Number | Publication Date |
|---|---|
| CN217798344U true CN217798344U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123360462.9U Active CN217798344U (en) | 2021-12-29 | 2021-12-29 | Large-scale normal and oblique tee extrusion equipment |
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| CN (1) | CN217798344U (en) |
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2021
- 2021-12-29 CN CN202123360462.9U patent/CN217798344U/en active Active
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