CN111774427A - Drill bit extrusion forming device - Google Patents
Drill bit extrusion forming device Download PDFInfo
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- CN111774427A CN111774427A CN202010659432.9A CN202010659432A CN111774427A CN 111774427 A CN111774427 A CN 111774427A CN 202010659432 A CN202010659432 A CN 202010659432A CN 111774427 A CN111774427 A CN 111774427A
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- 238000001125 extrusion Methods 0.000 title claims abstract description 73
- 238000007599 discharging Methods 0.000 claims abstract description 86
- 210000004907 gland Anatomy 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000005499 meniscus Effects 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 13
- 241001272720 Medialuna californiensis Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B21C23/21—Presses specially adapted for extruding metal
-
- 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
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/212—Details
-
- 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
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- 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
- B21C26/00—Rams or plungers; Discs therefor
-
- 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
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention belongs to the technical field of forming tools of extruders, and particularly relates to a drill bit extrusion forming device which comprises a lower extrusion assembly, an upper extrusion assembly and a feeding and discharging assembly arranged between the upper extrusion assembly and the lower extrusion assembly; the lower extrusion assembly comprises a lower base, a die holder, a gravitational ring and a split extrusion die; the upper extrusion component comprises an upper base, a die handle and a die handle gland; the feeding and discharging assembly comprises a material rod, a hydraulic cavity cover, a discharging plate, a sliding sleeve, a discharging sleeve pressing cover, a meniscus, a connecting rod assembly and a connecting rod seat, wherein the material rod, the hydraulic cavity cover, the discharging plate, the sliding sleeve, the discharging sleeve and the discharging sleeve pressing cover are arranged in the hydraulic cavity; the drill bit extrusion forming device has the advantages of compact structure, good process operability, suitability for batch rapid production, reasonable arrangement of the device and the punch piece, good protection and buffering capacity, and contribution to prolonging the service life of a die and the device; the press machine up-and-down movement process always synchronously realizes the coordinated actions of die holder opening and closing, trouser body dismounting, die clamping and withdrawing, improves the production efficiency, eliminates the instability of manual operation, and improves the product quality.
Description
Technical Field
The invention belongs to the technical field of forming tools of extruders, and particularly relates to a drill bit extrusion forming device.
Background
The drill bit is one of the necessary tools for various kinds of excavating engineering and stone engineering equipment. The drill bit comprises a straight drill bit suitable for drilling a rock stratum with low hardness by a light rock drill, a cross/X-shaped drill bit suitable for the condition of a rock drill with high impact power and a spherical tooth type drill bit with high strength, and the upper end of the drill bit is provided with a trouser body structure with different structures and sizes in order to facilitate installation and use of the drill bit. The physical properties of the trouser structure greatly influence the service life and the performance of the drill bit, in the prior art, more than 90 percent of the existing drill bit trouser materials are all made of round steel bars through extrusion by a press machine, extrusion molding can obtain a stronger and more uniform three-dimensional compression stress state than common processes such as rolling forging and the like, the plasticity of the processed metal is fully exerted, meanwhile, the trouser structure has high flexibility, is simple, convenient and quick to make, saves time, is efficient, has good surface quality of products, has higher utilization rate and yield, and has no influence on the mechanical properties of the metal.
However, the existing extrusion forming tool is simple in structure, single in function, low in processing efficiency and incapable of meeting the requirement of batch processing and manufacturing of drill bits, and only can realize shaping processing.
Disclosure of Invention
The invention aims to provide a drill bit extrusion forming device which can automatically and continuously perform forming operation and has high precision and high production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme.
A drill bit extrusion forming device comprises a lower extrusion assembly, an upper extrusion assembly and a feeding and discharging assembly arranged between the upper extrusion assembly and the lower extrusion assembly;
the lower extrusion assembly comprises a lower base 1, a die holder 2, a gravitational ring 3 and a split extrusion die 4;
the middle of the lower base 1 is provided with a material ejecting hole 1a, a plurality of guide post mounting holes are arranged around the material ejecting hole 1a, and guide posts 19 are arranged in the guide post mounting holes;
the die holder 2 is buckled above the material ejecting hole 1a, and a taper hole communicated with the material ejecting hole 1a is formed in the middle of the die holder 2; the lower end surface of the die holder 2 is tightly attached to the upper end surface of the lower base 1, and the lower edge of the die holder 2 is provided with a limiting eave 2 a;
the gravitational ring 3 is annular, the gravitational ring 3 is sleeved on the die holder 2 from top to bottom and tightly presses the limiting eaves 2a, and the gravitational ring is connected with the lower base through a bolt group;
the split extrusion die 4 is formed by splicing two symmetrically arranged split die bodies, a forming cavity is arranged on the splicing surface of the two split die bodies, and the shape of the outer surface of each split die body is matched with a taper hole in the middle of the die holder 2;
the upper extrusion component comprises an upper base 6, a die shank 9 and a die shank gland 7;
the lower end face of the upper base 6 is provided with an installation groove 6a which is coaxial with the material ejecting hole 1a and a plurality of guide sleeve installation holes which are opposite to the guide column installation holes, and a guide sleeve 18 is arranged in each guide sleeve installation hole;
the die handle 9 is arranged in the mounting groove 6a, the upper end of the die handle 9 is of a conical structure, the die handle gland 7 is buckled on the mounting groove 6a, and a through hole matched with the die handle 9 in shape is formed in the middle of the die handle gland 7; the die handle gland 7 is fixed on the upper base 6 through a bolt group;
a plurality of hydraulic cavities 6b arranged around the mounting groove 6a are dug in the lower end face of the upper base 6, and oil holes 6c connected to an external hydraulic pump are formed in the bottom of each hydraulic cavity 6 b;
go up unloading subassembly includes: the device comprises a discharging rod 25 arranged in a hydraulic cavity 6b, a hydraulic cavity cover 26 buckled at the lower end of the hydraulic cavity 6b, a discharging plate 10 sleeved on a die handle 9, a sliding sleeve 14 fixed on the discharging plate 10, a discharging sleeve 16 and a discharging sleeve pressing cover 17 fixed on the sliding sleeve 14, menisci 20 respectively arranged on two die parting bodies, a connecting rod assembly arranged on a die holder 2, and a connecting rod seat 21 used for connecting the connecting rod assembly and the menisci 20;
the discharging rod 25 is vertically arranged, the upper end of the discharging rod 25 is provided with a piston part, the piston part is tightly matched with the hydraulic cavity 6b, the middle of the hydraulic cavity cover 26 is provided with a through hole which can be sleeved on the discharging rod and is buckled at the lower end of the hydraulic cavity 6b, and the hydraulic cavity cover 26 is fixed on the upper base 6 through a bolt group;
the hydraulic cavity cover 26 is provided with an oil passing hole 26a communicated with the hydraulic cavity 26;
the lower end of the discharging rod 25 is provided with a discharging plate positioning plane, the middle of the positioning plane is provided with a threaded column, the discharging plate 10 is horizontally arranged, through holes capable of being sleeved on the threaded columns are formed in the discharging plate 10, and the discharging plate 10 is tightly pressed on the discharging rod 25 through nuts;
the sliding sleeve 14 is sleeved on the die shank 9, the sliding sleeve 14 is connected and fixed on the discharging plate 10 through a bolt group, and the discharging sleeve 16 is arranged in the middle of the sliding sleeve 14 and can be sleeved on the extrusion punch;
the discharge sleeve gland 17 is fixed at the lower end of the sliding sleeve 14 through a bolt group and compresses the discharge sleeve 16;
the meniscus 20 is an arc-shaped plate, the inner edge and the outer edge of the arc-shaped plate are respectively provided with a connecting hole, the connecting hole close to the same edge is fixed on the split extrusion die 4 through a bolt, and the connecting hole close to the other edge is connected with the connecting rod seat 21;
one end of the connecting rod component is hinged with the connecting rod seat 21, and the other end of the connecting rod component is connected with the die holder 2.
The further improvement or the preferred proposal of the drill bit extrusion molding device also comprises a die shank gasket 8 arranged between the top of the die shank 9 and the upper base 6;
a punch mounting cavity 9a is formed in the bottom of the die shank 9, a punch 11 is arranged in the punch mounting cavity 9a, and a punch gasket 12 is arranged between the bottom of the punch mounting cavity 9a and the punch 11;
the punch 11 is of a conical structure with a top end and a cylindrical structure with a lower end, a punch mounting cavity 9a is provided with a punch gland 13, and the punch gland 13 is fixed in the punch mounting cavity 9a through a bolt group;
the punch gland 13 is sleeved on the punch 11 and is provided with a tapered hole so as to be sleeved on the punch 11 and tightly press the punch 11 on the punch gasket 12;
the lower end of the sliding sleeve 14 is provided with a discharging sleeve mounting groove, the bottom of the discharging sleeve mounting groove is provided with a discharging sleeve flat gasket 15, and the top of the discharging sleeve 16 is tightly pressed against the discharging sleeve flat gasket 15;
the upper end edge of the discharging sleeve 16 is provided with a flange, and a discharging sleeve pressing cover 17 is abutted against the flange at the upper end of the discharging sleeve 16 to press the discharging sleeve tightly.
In a further improvement or preferred embodiment of the drill bit extrusion molding device, the meniscus 20 is composed of an arc-shaped bottom plate 20a at the bottom and an arc-shaped platform 20b formed by the downward protrusion of the inner edge of the arc-shaped bottom plate, a connecting hole for connecting the split extrusion die 4 is arranged on the arc-shaped platform 20b, and a connecting hole for connecting the connecting rod seat 21 is close to the outer edge of the arc-shaped bottom plate 20 a.
According to a further improvement or preferred scheme of the drill bit extrusion forming device, the connecting rod seat 21 comprises a connecting seat bottom plate 21a with an arc-shaped bottom, connecting holes for connecting the meniscus 20 are formed in two ends of the end face of the connecting seat bottom plate 21a, two connecting lugs 21b are arranged in the middle of the connecting seat 21a, and first hinge holes are formed in the connecting lugs;
the connecting rod assembly at least comprises a connecting fork 22 connected to the connecting rod seat 21, a die seat connecting seat 24 connected to the die seat 2, and a connecting rod 23 arranged between the connecting fork 22 and the die seat connecting seat 24;
the connecting fork 22 is of a Y-shaped structure, and a vertical arm 22a of the Y-shaped structure can be clamped between the two connecting lugs 21b and is hinged through a shaft structure;
the die holder connecting seat 24 comprises an arc-shaped connecting plate 24a which can be tightly attached to the outer circular surface of the die holder and two first connecting lugs 24b which extend from the outer circular surface of the arc-shaped connecting plate 24 a;
one end of the connecting rod 23 is clamped between the fork openings 22b of the Y-shaped structure, and the other end is clamped into the two first connecting lugs and is hinged through the shaft structure.
The beneficial effects are that:
1. the drill bit extrusion forming device has the advantages of compact structure, good process operability, smooth and quick action, and suitability for batch rapid production;
2. the device has reasonable structure, strong stability, reasonable arrangement of the device and the punch piece, good protection and buffering capacity and contribution to prolonging the service life of the die and the device;
3. the cooperation of the pushing matrix, the connecting rod assembly, the split die structure, the meniscus and the like which are stable at low speed of the extruder is utilized to realize the cooperative actions of opening and closing the die holder, disassembling and assembling the trousers body, clamping and withdrawing the die in the up-and-down movement process of the press before and after processing, so that the production efficiency is improved, the instability of manual operation is eliminated, and the product quality is improved.
Drawings
FIG. 1 is a schematic view of an embodiment of a bit extrusion apparatus;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1;
FIG. 3 is a schematic view of the construction of a meniscus in an embodiment of a bit extrusion apparatus;
FIG. 4 is a schematic view of a connecting rod seat in an embodiment of a bit extrusion molding apparatus;
FIG. 5 is a schematic view of a clevis of an embodiment of a bit extrusion apparatus;
FIG. 6 is a schematic view of a die holder connecting rod in an embodiment of a bit extrusion apparatus;
FIG. 7 is a schematic view of the construction of a lower base in an embodiment of a bit extrusion molding apparatus;
FIG. 8 is a schematic view of the construction of a stripper plate in an embodiment of the bit extrusion apparatus.
Wherein the reference numerals include:
the device comprises a lower base 1, a die holder 2, a gravitational ring 3, a split extrusion die 4, an extrusion drill bit 5, an upper base 6, a die shank gland 7, a die shank plain cushion 8, a die shank 9, a stripper 10, a punch 11, a punch plain cushion 12, a punch gland 13, a sliding sleeve 14, a stripper sleeve plain cushion 15, a stripper sleeve 16, a stripper sleeve gland 17, a guide sleeve 18, a guide pillar 19, a meniscus 20, a connecting seat 21, a connecting fork 22, a connecting rod 23 and a die holder connecting seat 24.
Detailed Description
The present invention will be described in detail with reference to specific examples.
The drill bit extrusion forming device is mainly used for extrusion processing of a drill bit trouser body, and it should be noted that in the attached drawings, in order to show the whole structure, part of parts are drawn in an incomplete showing or cutting mode (such as a stripper plate 10), and the specific structure is subject to the description content.
As shown in fig. 1 and 2, the main structure of the bit extrusion molding device comprises a lower extrusion assembly, an upper extrusion assembly and a feeding and discharging assembly arranged between the upper extrusion assembly and the lower extrusion assembly;
the lower extrusion assembly comprises a lower base 1, a die holder 2, a gravitational ring 3 and a split extrusion die 4; wherein the corresponding structure of upper and lower base and die holder, extrusion die is comparatively ripe in prior art, and different equipment or producer select suitable current structure according to equipment model selection and functional requirement can, wherein the gravitation circle is annular fastener for compress tightly the die holder on the lower base.
The basic structure of the lower base 1 is shown in fig. 7, a material ejecting hole 1a is arranged in the middle of the lower base 1, a plurality of guide post mounting holes (1b) are arranged around the material ejecting hole 1a, and guide posts 19 are arranged in the guide post mounting holes;
the die holder 2 is buckled above the material ejecting hole 1a, and a taper hole communicated with the material ejecting hole 1a is formed in the middle of the die holder 2; the lower end surface of the die holder 2 is tightly attached to the upper end surface of the lower base 1, and the lower edge of the die holder 2 is provided with a limiting eave 2 a;
the gravitational ring 3 is annular, the gravitational ring 3 is sleeved on the die holder 2 from top to bottom and tightly presses the limiting eaves 2a, and the gravitational ring is connected with the lower base through a bolt group; in order to facilitate the connection of the force ring, a plurality of connection screw holes 1c are arranged on the lower base 1. In order to facilitate the fixing of the lower base on the press machine and the corresponding calibration between the upper base and the lower base, a plurality of holes or groove structures (1d) for connection, fixing and alignment are further arranged on the edges or the plate surfaces of the upper base and the lower base.
The split extrusion die 4 is formed by splicing two symmetrically arranged split die bodies, a forming cavity is arranged on the splicing surface of the two split die bodies, and the shape of the outer surface of each split die body is matched with a taper hole in the middle of the die holder 2; the forming cavity is processed in advance according to the specific structural design of the drill bit pants body, or an extrusion die for purchasing a finished product is purchased. The taper hole structure is convenient for connect fixedly, prevents to drop, and the area of contact surface when the increase extrusion disperses the unit area atress.
The upper extrusion component comprises an upper base 6, a die shank 9 and a die shank gland 7;
the lower end face of the upper base 6 is provided with an installation groove 6a which is coaxial with the material ejecting hole 1a and a plurality of guide sleeve installation holes which are opposite to the guide column installation holes, and a guide sleeve 18 is arranged in each guide sleeve installation hole;
the die handle 9 is arranged in the mounting groove 6a, the upper end of the die handle 9 is of a conical structure, the die handle gland 7 is buckled on the mounting groove 6a, and a through hole matched with the die handle 9 in shape is formed in the middle of the die handle gland 7; the die handle gland 7 is fixed on the upper base 6 through a bolt group;
a plurality of hydraulic cavities 6b arranged around the mounting groove 6a are dug in the lower end face of the upper base 6, and oil holes 6c connected to an external hydraulic pump are formed in the bottom of each hydraulic cavity 6 b;
go up unloading subassembly includes: the device comprises a discharging rod 25 arranged in a hydraulic cavity 6b, a hydraulic cavity cover 26 buckled at the lower end of the hydraulic cavity 6b, a discharging plate 10 sleeved on a die handle 9, a sliding sleeve 14 fixed on the discharging plate 10, a discharging sleeve 16 and a discharging sleeve pressing cover 17 fixed on the sliding sleeve 14, menisci 20 respectively arranged on two die parting bodies, a connecting rod assembly arranged on a die holder 2, and a connecting rod seat 21 used for connecting the connecting rod assembly and the menisci 20;
the discharging rod 25 is vertically arranged, the upper end of the discharging rod 25 is provided with a piston part, the piston part is tightly matched with the hydraulic cavity 6b, the middle of the hydraulic cavity cover 26 is provided with a through hole which can be sleeved on the discharging rod and is buckled at the lower end of the hydraulic cavity 6b, and the hydraulic cavity cover 26 is fixed on the upper base 6 through a bolt group; the hydraulic cavity cover 26 is provided with an oil passing hole 26a communicated with the hydraulic cavity 26;
the lower end of the discharging rod 25 is provided with a discharging plate positioning plane, the middle of the positioning plane is provided with a threaded column, the discharging plate 10 is horizontally arranged, through holes 10a which can be sleeved on the threaded columns are arranged on the discharging plate 10, and the discharging plate 10 is tightly pressed on the discharging rod 25 through nuts;
as shown in fig. 8, after the stripper plate 10 is machined in the mold, the hydraulically pushed push rod drives the stripper plate 10 to move downward slowly to squeeze the drill pants, so that the drill pants which are difficult to be taken off and possibly sleeved on the punch are pushed out, and in order to ensure uniformity in hand, the device is smooth in action and prevented from being stuck.
The sliding sleeve 14 is sleeved on the die shank 9, the sliding sleeve 14 is fixedly connected on the discharging plate 10 through a bolt group, a screw hole 10b for connecting the bolt group is formed in the discharging plate 10, and the discharging sleeve 16 is arranged in the middle of the sliding sleeve 14 and can be sleeved on the extrusion punch; the discharge sleeve gland 17 is fixed at the lower end of the sliding sleeve 14 through a bolt group and compresses the discharge sleeve 16;
the meniscus 20 is an arc-shaped plate, the inner edge and the outer edge of the arc-shaped plate are respectively provided with a connecting hole, the connecting hole close to the same edge is fixed on the split extrusion die 4 through a bolt, and the connecting hole close to the other edge is connected with the connecting rod seat 21; one end of the connecting rod component is hinged with the connecting rod seat 21, and the other end of the connecting rod component is connected with the die holder 2.
As shown in fig. 3, the meniscus 20 is formed by an arc bottom plate 20a at the bottom and an arc table 20b formed by the inner edge of the arc bottom plate protruding downward, and the connection hole for connecting the separate extrusion die 4 is formed on the arc table 20b, and the connection hole for connecting the link base 21 is close to the outer edge of the arc bottom plate 20 a.
As shown in fig. 4, 5 and 6, the connecting rod seat 21 includes a connecting seat bottom plate 21a with an arc-shaped bottom, two ends of the end surface of the connecting seat bottom plate 21a are provided with connecting holes for connecting the meniscus 20, the middle part of the connecting seat 21a is provided with two connecting lugs 21b, and the connecting lugs are provided with first hinge holes;
the connecting rod assembly at least comprises a connecting fork 22 connected to the connecting rod seat 21, a die seat connecting seat 24 connected to the die seat 2, and a connecting rod 23 arranged between the connecting fork 22 and the die seat connecting seat 24;
the connecting fork 22 is of a Y-shaped structure, and a vertical arm 22a of the Y-shaped structure can be clamped between the two connecting lugs 21b and is hinged through a shaft structure;
the die holder connecting seat 24 comprises an arc-shaped connecting plate 24a which can be tightly attached to the outer circular surface of the die holder and two first connecting lugs 24b which extend from the outer circular surface of the arc-shaped connecting plate 24 a;
one end of the connecting rod 23 is clamped between the fork openings 22b of the Y-shaped structure, and the other end is clamped into the two first connecting lugs and is hinged through the shaft structure.
The structure is further optimized, and the die shank gasket 8 is arranged between the top of the die shank 9 and the upper base 6; a punch mounting cavity 9a is formed in the bottom of the die shank 9, a punch 11 is arranged in the punch mounting cavity 9a, and a punch gasket 12 is arranged between the bottom of the punch mounting cavity 9a and the punch 11; the punch 11 is of a conical structure with a top end and a cylindrical structure with a lower end, a punch mounting cavity 9a is provided with a punch gland 13, and the punch gland 13 is fixed in the punch mounting cavity 9a through a bolt group; the punch gland 13 is sleeved on the punch 11 and is provided with a tapered hole so as to be sleeved on the punch 11 and tightly press the punch 11 on the punch gasket 12; the lower end of the sliding sleeve 14 is provided with a discharging sleeve mounting groove, the bottom of the discharging sleeve mounting groove is provided with a discharging sleeve flat gasket 15, and the top of the discharging sleeve 16 is tightly pressed against the discharging sleeve flat gasket 15; the upper end edge of the discharging sleeve 16 is provided with a flange, and a discharging sleeve pressing cover 17 is abutted against the flange at the upper end of the discharging sleeve 16 to press the discharging sleeve tightly.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. A drill bit extrusion forming device is characterized by comprising a lower extrusion assembly, an upper extrusion assembly and a feeding and discharging assembly arranged between the upper extrusion assembly and the lower extrusion assembly;
the lower extrusion component comprises a lower base (1), a die holder (2), a gravitational ring (3) and a split extrusion die (4);
a material ejecting hole (1a) is formed in the middle of the lower base (1), a plurality of guide post mounting holes are formed around the material ejecting hole (1a), and guide posts (19) are arranged in the guide post mounting holes;
the die holder (2) is buckled above the material ejecting hole (1a), and a taper hole communicated with the material ejecting hole (1a) is formed in the middle of the die holder (2); the lower end surface of the die holder (2) is tightly attached to the upper end surface of the lower base (1), and the lower edge of the die holder (2) is provided with a limiting brim (2 a);
the pull ring (3) is annular, the pull ring (3) is sleeved on the die holder (2) from top to bottom and tightly presses the limiting eaves (2a), and the pull ring is connected with the lower base through the bolt group;
the split extrusion die (4) is formed by splicing two symmetrically arranged die parting bodies, a forming cavity is arranged on the splicing surface of the two die parting bodies, and the shape of the outer surface of the die parting body is matched with a taper hole in the middle of the die holder (2);
the upper extrusion component comprises an upper base (6), a die shank (9) and a die shank gland (7);
the lower end face of the upper base (6) is provided with an installation groove (6a) coaxial with the material ejecting hole (1a) and a plurality of guide sleeve installation holes opposite to the guide column installation holes, and guide sleeves (18) are arranged in the guide sleeve installation holes;
the die handle (9) is arranged in the mounting groove (6a), the upper end of the die handle (9) is of a conical structure, the die handle gland (7) is buckled on the mounting groove (6a), and a through hole matched with the die handle (9) in shape is formed in the middle of the die handle gland (7); the die shank gland bush (7) is fixed on the upper base (6) through a bolt group;
a plurality of hydraulic cavities (6b) arranged around the mounting groove (6a) are dug on the lower end surface of the upper base (6), and oil holes (6c) connected to an external hydraulic pump are formed in the bottoms of the hydraulic cavities (6 b);
go up unloading subassembly includes: the die comprises a discharging rod (25) arranged in a hydraulic cavity (6b), a hydraulic cavity cover (26) buckled at the lower end of the hydraulic cavity (6b), a discharging plate (10) sleeved on a die handle (9), a sliding sleeve (14) fixed on the discharging plate (10), a discharging sleeve (16) fixed on the sliding sleeve (14), a discharging sleeve pressing cover (17), menisci (20) respectively arranged on two die parting bodies, a connecting rod assembly arranged on a die holder (2), and a connecting rod seat (21) used for connecting the connecting rod assembly and the menisci (20);
the discharging rod (25) is vertically arranged, the upper end of the discharging rod (25) is provided with a piston part, the piston part is tightly matched with the hydraulic cavity (6b), the middle of the hydraulic cavity cover (26) is provided with a through hole which can be sleeved on the discharging rod and buckled at the lower end of the hydraulic cavity (6b), and the hydraulic cavity cover (26) is fixed on the upper base (6) through a bolt group; the hydraulic cavity cover (26) is provided with an oil passing hole (26a) communicated to the hydraulic cavity (26);
the lower end of the discharging rod (25) is provided with a discharging plate positioning plane, the middle of the positioning plane is provided with a threaded column, the discharging plate (10) is horizontally arranged, through holes capable of being sleeved on the threaded columns are formed in the discharging plate (10), and the discharging plate (10) is tightly pressed on the discharging rod (25) through nuts;
the sliding sleeve (14) is sleeved on the die handle (9), the sliding sleeve (14) is connected and fixed on the discharging plate (10) through a bolt group, and the discharging sleeve (16) is arranged in the middle of the sliding sleeve (14) and can be sleeved on the extrusion punch; the discharge sleeve gland (17) is fixed at the lower end of the sliding sleeve (14) through a bolt group and compresses the discharge sleeve (16);
the meniscus (20) is an arc-shaped plate, connecting holes are respectively arranged on the inner edge and the outer edge of the arc-shaped plate, the connecting hole close to the same edge is fixed on the split extrusion die (4) through a bolt, and the connecting hole close to the other edge is connected with the connecting rod seat (21); one end of the connecting rod component is hinged with the connecting rod seat (21), and the other end of the connecting rod component is connected with the die holder (2).
2. The bit extrusion molding device of claim 1, further comprising a die shank gasket (8) disposed between the top of the die shank (9) and the upper base (6);
a punch mounting cavity (9a) is formed in the bottom of the die shank (9), a punch (11) is arranged in the punch mounting cavity (9a), and a punch gasket (12) is arranged between the bottom of the punch mounting cavity (9a) and the punch (11);
the punch (11) is of a conical top end and cylindrical lower end structure, a punch gland (13) is arranged in the punch mounting cavity (9a), and the punch gland (13) is fixed in the punch mounting cavity (9a) through a bolt group;
the punch head gland (13) is sleeved on the punch head (11), a tapered hole is formed in the punch head gland so as to be sleeved on the punch head (11), and the punch head (11) is tightly pressed on the punch head gasket (12);
the lower end of the sliding sleeve (14) is provided with a discharging sleeve mounting groove, the bottom of the discharging sleeve mounting groove is provided with a discharging sleeve flat gasket (15), and the top of the discharging sleeve (16) is tightly pressed against the discharging sleeve flat gasket (15);
the edge of the upper end of the discharging sleeve (16) is provided with a flange, and a discharging sleeve pressing cover (17) is pressed against the flange at the upper end of the discharging sleeve (16) to press the discharging sleeve.
3. The bit extrusion molding device according to claim 1, wherein the meniscus (20) is composed of an arc-shaped bottom plate (20a) at the bottom and an arc-shaped platform (20b) formed by the downward projection of the inner edge of the arc-shaped bottom plate, a connecting hole for connecting the split extrusion die (4) is arranged on the arc-shaped platform (20b), and a connecting hole for connecting the connecting rod seat (21) is close to the outer edge of the arc-shaped bottom plate (20 a).
4. The bit extrusion forming device according to claim 3, wherein the connecting rod seat (21) comprises a connecting seat bottom plate (21a) with an arc-shaped bottom, connecting holes for connecting the half-moon plates (20) are formed in two ends of the end surface of the connecting seat bottom plate (21a), two connecting lugs (21b) are arranged in the middle of the connecting seat (21a), and first hinge holes are formed in the connecting lugs;
the connecting rod assembly at least comprises a connecting fork (22) connected to the connecting rod seat (21), a die seat connecting seat (24) connected to the die seat (2), and a connecting rod (23) arranged between the connecting fork (22) and the die seat connecting seat (24);
the connecting fork (22) is of a Y-shaped structure, and a vertical arm (22a) of the Y-shaped structure can be clamped between the two connecting lugs (21b) and is hinged through a shaft structure;
the die holder connecting seat (24) comprises an arc-shaped connecting plate (24a) which can be tightly attached to the outer circular surface of the die holder and two first connecting lugs (24b) which extend from the outer circular surface of the arc-shaped connecting plate (24 a);
one end of the connecting rod (23) is clamped between the fork openings (22b) of the Y-shaped structure, and the other end of the connecting rod is clamped between the two first connecting lugs and is hinged through a shaft structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659432.9A CN111774427A (en) | 2020-07-09 | 2020-07-09 | Drill bit extrusion forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659432.9A CN111774427A (en) | 2020-07-09 | 2020-07-09 | Drill bit extrusion forming device |
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| CN111774427A true CN111774427A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010659432.9A Pending CN111774427A (en) | 2020-07-09 | 2020-07-09 | Drill bit extrusion forming device |
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| CN2296784Y (en) * | 1997-11-13 | 1998-11-11 | 马进 | Extruding forming die for casing of rock bit |
| CN200957431Y (en) * | 2006-10-20 | 2007-10-10 | 浙江开山股份有限公司 | Disposable-formed extruding mould |
| CN203390108U (en) * | 2013-07-30 | 2014-01-15 | 淮南庆达机械有限责任公司 | Die discharging device |
| US20140053623A1 (en) * | 2011-05-10 | 2014-02-27 | Laurent Hebrard | Hot extrusion method for producing a metal part, extrusion tool for implementation it and landing gear rod thus produced |
| CN103691755A (en) * | 2013-12-18 | 2014-04-02 | 重庆巨康建材有限公司 | Improved simple part extrusion die set |
| CN203900142U (en) * | 2014-06-07 | 2014-10-29 | 谢海燕 | Cold extrusion die of valve ejector rod |
| CN106166568A (en) * | 2016-06-30 | 2016-11-30 | 中北大学 | A kind of umbellate form housing member precision warm extrusion forming die |
| CN108607890A (en) * | 2018-07-04 | 2018-10-02 | 天津普天单向器有限公司 | A kind of novel die of rotary squeezing helical teeth internal gear |
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2020
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296784Y (en) * | 1997-11-13 | 1998-11-11 | 马进 | Extruding forming die for casing of rock bit |
| CN200957431Y (en) * | 2006-10-20 | 2007-10-10 | 浙江开山股份有限公司 | Disposable-formed extruding mould |
| US20140053623A1 (en) * | 2011-05-10 | 2014-02-27 | Laurent Hebrard | Hot extrusion method for producing a metal part, extrusion tool for implementation it and landing gear rod thus produced |
| CN203390108U (en) * | 2013-07-30 | 2014-01-15 | 淮南庆达机械有限责任公司 | Die discharging device |
| CN103691755A (en) * | 2013-12-18 | 2014-04-02 | 重庆巨康建材有限公司 | Improved simple part extrusion die set |
| CN203900142U (en) * | 2014-06-07 | 2014-10-29 | 谢海燕 | Cold extrusion die of valve ejector rod |
| CN106166568A (en) * | 2016-06-30 | 2016-11-30 | 中北大学 | A kind of umbellate form housing member precision warm extrusion forming die |
| CN108607890A (en) * | 2018-07-04 | 2018-10-02 | 天津普天单向器有限公司 | A kind of novel die of rotary squeezing helical teeth internal gear |
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Application publication date: 20201016 |