CN113245391B - Lubrication device for extruded pipe - Google Patents
Lubrication device for extruded pipe Download PDFInfo
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- CN113245391B CN113245391B CN202110633925.XA CN202110633925A CN113245391B CN 113245391 B CN113245391 B CN 113245391B CN 202110633925 A CN202110633925 A CN 202110633925A CN 113245391 B CN113245391 B CN 113245391B
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- outer cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
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- Extrusion Moulding Of Plastics Or The Like (AREA)
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Abstract
The invention provides a lubrication device for extruding a pipe blank, which comprises: the lubricating structure comprises a lubricating outer cylinder and a lubricating inner cylinder, the lubricating outer cylinder and the lubricating inner cylinder are connected through an inner cylinder frame, the lubricating outer cylinder is of a hollow structure with openings at two ends, the lubricating inner cylinder is positioned in the lubricating outer cylinder, the lubricating outer cylinder and the lubricating inner cylinder are coaxially arranged, the lubricating outer cylinder is used for being sleeved on the periphery of a blank, and the lubricating inner cylinder is used for being inserted into an inner hole of the blank; the base is used for placing the lubricating structure and is provided with an upper surface facing the lubricating outer cylinder, and the bottom opening of the lubricating outer cylinder is arranged opposite to the upper surface of the base; the base is provided with a guide device, and the lubricating structure moves along the axial direction of the lubricating outer cylinder through the guide device. The lubricating device for extruding the pipe blank improves the production efficiency and the product quality.
Description
Technical Field
The invention relates to the technical field of extrusion production lubrication, in particular to a lubrication device for extruded pipe blanks.
Background
Extrusion molding is a plastic molding method for obtaining a product with a desired cross-sectional shape and size by applying an external force to a metal ingot placed in a container (extrusion cylinder) from one end and forcing it to flow out from a specific die hole.
In the hot extrusion forming process, friction between the blank and the tool and the die is an important factor affecting the service life of the die and the product quality, and in addition, when the friction resistance between the blank and the extrusion barrel is large, the extrusion force is increased, so that the hot extrusion of the blank is not facilitated. Lubrication is therefore important.
In the prior art, glass powder is generally used for lubricating the surface of a blank, the glass powder is a common hot extrusion lubricant, cold state glass is gradually changed into a viscous state from a solid state by heating, the glass powder is manually applied to the surface of a hot metal blank before extrusion, and flows together with a deformed metal blank under pressure to form a complete fluid lubricating film on the surface of the deformed metal blank. The glass film has the functions of reducing friction, avoiding metal oxidation in the hot extrusion process, and preventing blank temperature drop and die heat impact, thereby promoting hot extrusion.
However, the existing method for applying glass powder on the surface of the blank has low efficiency and uneven coating, and reduces the production efficiency and the product quality.
Disclosure of Invention
The invention provides a lubricating device for extruding a pipe blank, which is used for solving the defects that the method for applying glass powder on the surface of the blank in the prior art is low in efficiency and uneven in coating, reduces the production efficiency and the product quality, and improves the production efficiency and the product quality.
The invention provides a lubrication device for extruding a pipe blank, which comprises:
the lubricating structure comprises a lubricating outer cylinder and a lubricating inner cylinder, the lubricating outer cylinder and the lubricating inner cylinder are connected through an inner cylinder frame, the lubricating outer cylinder is of a hollow structure with two open ends, the lubricating inner cylinder is positioned in the lubricating outer cylinder, the lubricating outer cylinder and the lubricating inner cylinder are coaxially arranged, the lubricating outer cylinder is used for being sleeved on the periphery of a blank, and the lubricating inner cylinder is used for being inserted into an inner hole of the blank;
a base for resting the lubrication structure, the base having an upper surface facing the lubrication outer cylinder, a bottom opening of the lubrication outer cylinder being arranged opposite the upper surface of the base; the base is provided with a guide device, and the lubricating structure moves along the axial direction of the lubricating outer cylinder through the guide device.
According to the lubricating device for extruding the pipe blank, which is provided by the invention, the grid is arranged at the top opening of the lubricating outer cylinder and is used for placing the spacer and the glass powder.
According to the lubricating device for extruding the pipe blank, the caliber of the top opening of the lubricating outer cylinder is gradually increased along the direction deviating from the upper surface of the base.
According to the lubricating device for extruding the pipe blank, the inner cylinder frame comprises a transverse frame and a longitudinal frame, the longitudinal frame is fixed in the middle of the transverse frame, two fixing pieces which are arranged at intervals are arranged at the top of the lubricating outer cylinder, the fixing pieces are provided with first fixing holes, the transverse frame penetrates through the two first fixing holes, two first pins which are arranged at intervals are inserted into the transverse frame, and the two fixing pieces are positioned between the two first pins; the middle part of the lubricating inner barrel is provided with a second fixing hole, the longitudinal frame penetrates through the second fixing hole, two second pins arranged at intervals are inserted in the longitudinal frame, and the lubricating inner barrel is positioned between the two second pins.
According to the lubricating device for extruding the pipe blank, which is provided by the invention, the top of the lubricating outer cylinder is provided with the lifting ring.
According to the lubricating device for extruding the pipe blank, provided by the invention, the upper surface of the base is provided with the boss, the bottom opening of the lubricating outer cylinder is provided with the annular step groove, and the boss is embedded in the annular step groove; the upper surface of boss ring is equipped with the backing ring, the backing ring cooperatees with the bottom of blank.
According to the lubricating device for the extruded pipe blank, which is provided by the invention, the upper surface of the base is also provided with the annular collecting groove, the annular collecting groove is annularly arranged on the periphery of the boss, and a gap is reserved between the bottom of the lubricating outer cylinder and the annular collecting groove.
According to the lubricating device for extruding the pipe blank, the radius of the inner wall of the lubricating outer cylinder is 10-20 mm larger than the radius of the periphery of the blank; the radius of the outer wall of the lubricating inner cylinder is 10-20 mm smaller than the radius of the inner hole of the blank.
According to the lubricating device for extruding the pipe blank, the upper end and the lower end of the lubricating inner cylinder are both in a truncated cone structure.
According to the lubricating device for extruding the pipe blank, which is provided by the invention, the guiding device comprises two vertical rods and a guiding ring, wherein the two vertical rods are vertically arranged on the upper surface of the base at intervals and are respectively connected with two ends of the guiding ring, and the guiding ring is sleeved on the periphery of the lubricating outer cylinder.
According to the lubricating device for the extruded tube blank, when the blank needs to be lubricated through the lubricating structure, the lubricating structure is moved upwards through the guide device to place the blank, then the lubricating structure is moved downwards, the lubricating outer cylinder is sleeved on the periphery of the blank, the lubricating inner cylinder is inserted into the inner hole of the blank, and then glass powder can enter the upper surface of the blank, the gap between the blank and the lubricating outer cylinder and the gap between the blank and the lubricating inner cylinder from the top opening of the lubricating outer cylinder, and the glass powder which is heated to be in a viscous state is heated, so that the surface of the blank is fully lubricated. Compared with the application method of the glass powder in the prior art, the lubricating structure provided by the invention can rapidly and uniformly coat the glass powder on the surface of the blank, so that the surface of the blank is sufficiently lubricated, the subsequent forming is convenient, and the production efficiency and the product quality are improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the forward direction of a lubrication apparatus for extruding a tube blank provided by the present invention;
FIG. 2 is a schematic side view of a lubrication apparatus for extruding a tube blank according to the present invention;
FIG. 3 is a schematic view showing a structure of a lubrication device for extruding a pipe blank in a depression direction;
FIG. 4 is an enlarged schematic view at A in FIG. 1;
FIG. 5 is an enlarged schematic view at C in FIG. 1;
FIG. 6 is a schematic view of the structure of the lubrication device for extruding a pipe blank in the forward direction in the lifted state;
FIG. 7 is a schematic side elevational view of the lubrication apparatus for extruding a tubing blank of the present invention in a raised condition;
FIG. 8 is an enlarged schematic view at B in FIG. 7;
reference numerals:
10: a lubrication structure; 11: a lubricating outer cylinder; 111: a fixing member;
112: lifting rings; 12: a lubrication inner cylinder; 13: an inner cylinder frame;
131: a cross frame; 132: a longitudinal frame; 1321: a second pin;
14: a grid; 20: a base; 21: a boss;
211: a backing ring; 30: a guide device; 31: a vertical rod;
32: a guide ring; 40: an annular collection tank.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The lubrication device for extruding a tube blank according to the present invention will be described with reference to fig. 1 to 8.
Referring to fig. 1 and 6 in combination, a lubrication apparatus for extruding a tube blank includes:
the lubricating structure 10 comprises a lubricating outer cylinder 11 and a lubricating inner cylinder 12, wherein the lubricating outer cylinder 11 and the lubricating inner cylinder 12 are connected through an inner cylinder frame 13, the lubricating outer cylinder 11 is of a hollow structure with two open ends, the lubricating inner cylinder 12 is positioned in the lubricating outer cylinder 11, the lubricating outer cylinder 11 and the lubricating inner cylinder 12 are coaxially arranged, the lubricating outer cylinder 11 is used for being sleeved on the periphery of a blank, and the lubricating inner cylinder 12 is used for being inserted into an inner hole of the blank;
a base 20 for resting the lubricating structure 10, the base 20 having an upper surface facing the lubricating outer cylinder 11, a bottom opening of the lubricating outer cylinder 11 being arranged opposite to the upper surface of the base 20; the base 20 is provided with a guide device 30, and the lubricating structure 10 moves along the axial direction of the lubricating outer cylinder 11 through the guide device 30.
In the above structure, the lubricating outer cylinder 11 has a cylindrical structure with openings at the upper and lower ends, and the bottom opening of the lubricating outer cylinder 11 is arranged opposite to the upper surface of the base 20, so as to be sleeved on the outer periphery of the blank from the bottom opening of the lubricating outer cylinder 11 when the blank is placed on the base 20; the inner lubrication cylinder 12 is in a cylindrical structure and is coaxial with the outer lubrication cylinder 11, so that the inner lubrication cylinder 12 can be inserted into an inner hole of a blank while the outer lubrication cylinder 11 is sleeved on the periphery of the blank. The lubricating outer cylinder 11 and the lubricating inner cylinder 12 are fixedly connected through the inner cylinder frame 13, so that the lubricating outer cylinder 11 and the lubricating inner cylinder 12 are coaxially arranged, and in the embodiment, the inner cylinder frame 13 is positioned at the top of the lubricating outer cylinder 11, so that blanks can conveniently enter from the bottom opening of the lubricating outer cylinder 11, and the inner cylinder frame 13 is prevented from being interfered.
Further, the base 20 serves as a support structure for placing the billet and for the above-described lubricating structure 10, and the guide means 30 provided thereon allows the lubricating structure 10 to move up and down only in the axial direction of the lubricating outer cylinder 11, by which the billet is placed, and the lubricating structure 10 is engaged with the billet.
In this embodiment, through the lubrication structure 10 provided, when the blank needs to be lubricated, the lubrication structure 10 is moved upward by the guide device 30, the blank is placed, then the lubrication structure 10 is moved downward, so that the lubrication outer cylinder 11 is sleeved on the periphery of the blank, the lubrication inner cylinder 12 is inserted into the inner hole of the blank, then the glass powder can enter the upper surface of the blank from the top opening of the lubrication outer cylinder 11, the gap between the blank and the lubrication outer cylinder 11 and the gap between the blank and the lubrication inner cylinder 12, and the glass powder which is heated to be in a viscous state is heated, so that the surface of the blank is sufficiently lubricated. Compared with the application method of the glass powder in the prior art, the lubricating structure 10 provided by the invention can rapidly and uniformly coat the glass powder on the surface of the blank, so that the surface of the blank is sufficiently lubricated, the subsequent forming is convenient, and the production efficiency and the product quality are improved.
The above-described placed preform is placed on the base 20 after heating, and thus, the solid glass frit becomes viscous after contacting the preform, so as to lubricate the surface of the preform. Alternatively, the glass frit may be manually placed or, as will be described later, placed in the top opening of the lubricating outer cylinder 11 and then dropped onto the surface of the blank after the lubricating structure 10 has been mated with the blank.
Referring to fig. 1, 3 and 6, in an embodiment of the present invention, a grid 14 is disposed at the top opening of the lubricating outer cylinder 11, and the grid 14 is used for placing spacers and glass frit.
The grid 14 is in a net shape and is transversely arranged at the top opening of the lubricating outer cylinder 11 to separate the inside and the outside of the lubricating outer cylinder 11, in this embodiment, the grid is a square grid with the specification of 100mm×100mm, and of course, other shapes can be adopted according to the requirement, and the description is omitted.
The spacers and the glass powder are placed on the grid frame 14, the spacers are laid on the grid frame 14, the glass powder is placed on the spacers, the spacers are made of materials which are easy to burn or melt at high temperature, and optionally, but not limited to, cloth sheets, after the lubricating structure 10 is matched with the blank, the spacers are burnt or melted by heat radiated by the blank, and the glass powder falls on the surface of the blank, so that human factors are removed, the glass powder is coated more uniformly, and the product quality is improved.
Referring to fig. 1 and 6 in combination, in an embodiment of the present invention, according to the lubrication apparatus for extruding a pipe blank provided by the present invention, the caliber of the top opening of the lubrication outer cylinder 11 gradually increases along the direction away from the upper surface of the base 20.
In this way, the funnel-shaped top opening can be more easily flowed and uniformly coated on the surface of the blank when the glass frit enters the surface of the blank from the top opening of the lubricating outer cylinder 11.
In combination with the above-described grid 14, the grid 14 is transversely disposed at the bottom of the top opening of the lubricating outer cylinder 11, so that a groove is formed between the grid 14 and the top opening of the lubricating outer cylinder 11 to facilitate the placement of the spacers and glass frit and to facilitate the subsequent flow of glass frit.
Referring to fig. 1, 4, 6 and 8, in addition, in an embodiment of the present invention, the inner cylinder frame 13 includes a transverse frame 131 and a longitudinal frame 132, the longitudinal frame 132 is fixed at the middle of the transverse frame 131, two fixing pieces 111 arranged at intervals are disposed at the top of the lubricating outer cylinder 11, the fixing pieces 111 have first fixing holes, the transverse frame 131 is inserted into the two first fixing holes, two first pins arranged at intervals are inserted into the transverse frame 131, and the two fixing pieces 111 are located between the two first pins; the middle part of the inner lubrication cylinder 12 has a second fixing hole, the longitudinal frame 132 is inserted into the second fixing hole, two second pins 1321 arranged at intervals are inserted into the longitudinal frame 132, and the inner lubrication cylinder 12 is located between the two second pins 1321.
Here, the specific structure of the inner cylinder frame 13 for fixing the lubricating outer cylinder 11 and the lubricating inner cylinder 12 is that, when the lubricating outer cylinder 11 is fixed, two fixing pieces 111 are symmetrically arranged at the top of the lubricating outer cylinder 11, a first pin hole is formed in the transverse frame 131, a first pin can be inserted, after the transverse frame 131 is arranged in the two first fixing holes in a penetrating manner, the first pin is inserted, and the transverse frame 131 is fixed through the two first pins to avoid movement of the transverse frame. In this embodiment, four fixing members 111 are provided, and are disposed around the lubricating outer cylinder 11 at uniform intervals, the cross frame 131 can be fixed with any two fixing members 111, and further fixing members 111 can be provided as needed, which is not described in detail. In addition, the square hole of the first fixing hole is provided herein, the cross section of the corresponding cross frame 131 is a square cross section, the cross frame 131 is matched with the square hole when penetrating through the first fixing hole, the cross frame 131 can be prevented from rotating, the stability of the structure is ensured, and the shape of the first fixing hole and the cross section of the cross frame 131 can be other non-circular shapes as required, which is not repeated.
In addition, when the inner lubricant tube 12 is fixed, the vertical frame 132 connected to the horizontal frame 131 is located at the axial position of the inner lubricant tube 12 and passes through the second fixing hole of the inner lubricant tube 12, and two second pin holes are provided in the vertical frame 132, and the second pin 1321 can be inserted, so that the inner lubricant tube 12 is fixed to the inner tube frame 13 by the two second pin 1321. Thus, when the grid 14 is provided, the center of the upper frame is correspondingly provided with a through hole for the longitudinal frame 132 to pass through. In addition, the longitudinal frame 132 is in a cylindrical structure with a notch at one side, and the second fixing hole is matched with the longitudinal frame 132, so that the rotation of the inner lubrication cylinder 12 can be avoided, the stability of the structure is ensured, and the shape of the second fixing hole and the section of the longitudinal frame 132 can be in other non-circular shapes as required, and the description is omitted.
In yet another embodiment, the second fixing hole of the inner lubricant cylinder 12 may be screwed with the longitudinal frame 132, which will not be described.
In addition, the transverse frame 131 and the longitudinal frame 132 may be integrally formed, and may be fixed by threaded connection as required, which is not described in detail.
In other embodiments, the outer lubrication cylinder 11 and the inner lubrication cylinder 12 are integrally formed, i.e., the inner cylinder frame 13 is a structure that interfaces between the two.
Referring to fig. 7 and 8 in combination, in an embodiment of the present invention, a lifting ring 112 is disposed on the top of the lubricating outer cylinder 11.
The lifting ring 112 is in the form of a bent hook with an opening at one side, and the lifting ring 112 is arranged to facilitate lifting or lowering of the lubricating structure 10 by lifting equipment to avoid danger of direct contact with the lubricating structure 10.
In this embodiment, the lifting rings 112 are uniformly spaced around the top of the lubricating outer cylinder 11 to stably lift or lower the lubricating structure 10, and specifically, the lifting rings 112 are protruding structures on the fixing members 111. In addition, in another embodiment, the lifting ring 112 may be disposed only at the center of the inner cylinder frame 13 to stably lift or lower the lubrication structure 10, which will not be described in detail.
Referring to fig. 1, 5 and 6, in an embodiment of the present invention, a boss 21 is disposed on an upper surface of the base 20, an annular step groove is disposed at a bottom opening of the outer lubrication cylinder 11, and the boss 21 is embedded in the annular step groove; the upper surface of the boss 21 is provided with a backing ring 211 in a ring mode, and the backing ring 211 is matched with the bottom of the blank.
The boss 21 can be used for placing blanks, and in the process of placing glass powder, the boss 21 is embedded into an annular step groove at the bottom of the lubricating outer cylinder 11, so that a semi-closed space is formed by the lubricating outer cylinder 11 and the boss 21, the outflow of the glass powder can be avoided, and the full lubrication is ensured.
In order to avoid the influence of the engagement between the lubricating outer cylinder 11 and the boss 21, a clearance of 10 to 20mm is provided between the bottom of the lubricating inner cylinder 12 and the upper surface of the boss 21, and a clearance of 15mm is preferable.
In addition, the upper surface of this boss 21 is equipped with the backing ring 211, and the center of backing ring 211 is arranged with the axis direction concentricity of above-mentioned lubricated urceolus 11, and the backing ring 211 can cooperate with the chamfer of blank bottom, guarantees that the blank is located the center of boss 21 to guarantee the cooperation of follow-up lubrication structure 10 and blank, improve lubrication efficiency.
Referring to fig. 1, 2, 3, 6 and 7, following the above structure, the upper surface of the base 20 is further provided with an annular collecting groove 40, the annular collecting groove 40 is annularly disposed on the periphery of the boss 21, and a gap is formed between the bottom of the lubricating outer cylinder 11 and the annular collecting groove 40.
The annular collection trough 40 has an upwardly opening trough body, and after lubrication is completed, unmelted glass frit falls into the annular collection trough 40 after the lubrication structure 10 is lifted up, so as to collect glass frit for reuse. In this embodiment, the annular collecting groove 40 is a structure that is placed on the upper surface of the base 20, and the annular collecting groove 40 can be correspondingly removed to take out the glass powder; in yet another embodiment, the annular collecting groove 40 and the base 20 are integrally formed, which is not described in detail.
In addition, a gap is formed between the bottom of the lubricating outer cylinder 11 and the annular collecting groove 40, so that the mutual influence of the structures can be avoided, and the stability of the structures can be ensured.
Referring to fig. 1 and 6 in combination, in an embodiment of the present invention, the radius of the inner wall of the lubricating outer cylinder 11 is 10-20 mm larger than the radius of the outer periphery of the blank; the radius of the outer wall of the lubricating inner cylinder 12 is 10-20 mm smaller than the radius of the inner hole of the blank.
In this way, the sizes of the lubricating outer cylinder 11 and the lubricating inner cylinder 12 can be correspondingly set according to the size of the blank, so that after the lubricating structure 10 is matched with the blank, glass powder can fully enter gaps between the blank and the lubricating outer cylinder 11 and between the blank and the lubricating inner cylinder 12, the blank surface can be uniformly and fully lubricated, and the quality of processed products is improved. Preferably, in one embodiment, the inner wall radius of the lubricating outer cylinder 11 is 15mm greater than the radius of the outer periphery of the blank, and the outer wall radius of the lubricating inner cylinder 12 is 15mm less than the inner hole radius of the blank.
In addition, the upper and lower ends of the inner lubrication cylinder 12 are both in a truncated cone structure, so that glass powder can easily enter a gap between the blank and the inner lubrication cylinder 12.
Referring to fig. 1, 2, 3, 6 and 7, in an embodiment of the present invention, according to the lubrication device for extruding a pipe blank provided by the present invention, the guiding device 30 includes two upright posts 31 and a guiding ring 32, the two upright posts 31 are arranged on the upper surface of the base 20 at intervals, and are respectively connected to two ends of the guiding ring 32, and the guiding ring 32 is sleeved on the periphery of the lubrication outer cylinder 11.
Here, a specific structure of the guide device 30 for the up-and-down movement of the lubrication structure 10 is given, that is, the guide ring 32 is structurally fixed by the two upright rods 31, and the lubrication structure 10 can only move up-and-down due to the fact that the guide ring 32 is sleeved on the outer circumference of the lubrication outer cylinder 11. Further, in an embodiment, a limiting ring is provided on the outer periphery of the bottom of the lubricating outer cylinder 11, so as to prevent the lubricating structure 10 from falling out of the guiding device 30.
In another embodiment, the guiding device 30 includes two oppositely arranged guiding sliding grooves, two ends of the lubricating structure 10 are protruded with guiding sliding blocks, and the two guiding sliding blocks respectively move up and down along the guiding sliding grooves which are vertically arranged, so as to realize the up and down movement of the lubricating structure 10.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A lubrication device for extruding a tube blank, comprising:
the lubricating structure comprises a lubricating outer cylinder and a lubricating inner cylinder, the lubricating outer cylinder and the lubricating inner cylinder are connected through an inner cylinder frame, the lubricating outer cylinder is of a hollow structure with two open ends, the lubricating inner cylinder is positioned in the lubricating outer cylinder, the lubricating outer cylinder and the lubricating inner cylinder are coaxially arranged, the lubricating outer cylinder is used for being sleeved on the periphery of a blank, and the lubricating inner cylinder is used for being inserted into an inner hole of the blank;
a base for resting the lubrication structure, the base having an upper surface facing the lubrication outer cylinder, a bottom opening of the lubrication outer cylinder being arranged opposite the upper surface of the base; the base is provided with a guide device, and the lubricating structure moves along the axial direction of the lubricating outer cylinder through the guide device;
a grid frame is arranged at the top opening of the lubricating outer cylinder and is used for placing a spacer and glass powder;
and the caliber of the top opening of the lubricating outer cylinder is gradually increased along the direction deviating from the upper surface of the base.
2. The lubricating device for extruding a pipe blank according to claim 1, wherein the inner cylinder frame comprises a transverse frame and a longitudinal frame, the longitudinal frame is fixed at the middle part of the transverse frame, two fixing pieces arranged at intervals are arranged at the top of the lubricating outer cylinder, the fixing pieces are provided with first fixing holes, the transverse frame penetrates through the two first fixing holes, two first pins arranged at intervals are inserted into the transverse frame, and the two fixing pieces are positioned between the two first pins; the middle part of the lubricating inner barrel is provided with a second fixing hole, the longitudinal frame penetrates through the second fixing hole, two second pins arranged at intervals are inserted in the longitudinal frame, and the lubricating inner barrel is positioned between the two second pins.
3. The lubrication device for extruded tube stock according to claim 1, wherein the top of the lubrication outer cylinder is provided with a lifting ring.
4. The lubrication device for extruded tube blanks according to claim 1, wherein a boss is arranged on the upper surface of the base, an annular step groove is formed in the bottom opening of the lubrication outer cylinder, and the boss is embedded in the annular step groove; the upper surface of boss ring is equipped with the backing ring, the backing ring cooperatees with the bottom of blank.
5. The lubrication device for extruded tube stock according to claim 4, wherein the upper surface of the base is further provided with an annular collecting groove, the annular collecting groove is annularly arranged on the periphery of the boss, and a gap is formed between the bottom of the lubrication outer cylinder and the annular collecting groove.
6. The lubrication device for extruding a pipe billet according to claim 1, wherein the radius of the inner wall of the lubrication outer cylinder is 10-20 mm larger than the radius of the outer periphery of the billet; the radius of the outer wall of the lubricating inner cylinder is 10-20 mm smaller than the radius of the inner hole of the blank.
7. The lubrication device for extruded tube stock according to claim 1, wherein the upper and lower ends of the lubrication inner cylinder are both of a truncated cone structure.
8. The lubrication device for extruded tube stock according to claim 1, wherein the guiding device comprises two vertical rods and a guiding ring, the two vertical rods are arranged on the upper surface of the base at intervals and are respectively connected with two ends of the guiding ring, and the guiding ring is sleeved on the periphery of the lubrication outer cylinder.
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| CN202110633925.XA CN113245391B (en) | 2021-06-07 | 2021-06-07 | Lubrication device for extruded pipe |
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| CN202110633925.XA CN113245391B (en) | 2021-06-07 | 2021-06-07 | Lubrication device for extruded pipe |
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| CN113245391B true CN113245391B (en) | 2023-05-16 |
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| JPH03146214A (en) * | 1989-10-31 | 1991-06-21 | Ube Ind Ltd | Lubricating device for fixed dummy block end face of extruding press |
| JPH06170437A (en) * | 1992-11-30 | 1994-06-21 | Sumitomo Metal Ind Ltd | Hot extruding tube making method |
| CN105731792A (en) * | 2014-12-09 | 2016-07-06 | 北京有色金属研究总院 | Lubricant used in nickel-based corrosion-resistant alloy hot extrusion, and preparation method thereof |
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