CN116460210A - Method for processing saw chain guide plate roller - Google Patents
Method for processing saw chain guide plate roller Download PDFInfo
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- CN116460210A CN116460210A CN202310179872.8A CN202310179872A CN116460210A CN 116460210 A CN116460210 A CN 116460210A CN 202310179872 A CN202310179872 A CN 202310179872A CN 116460210 A CN116460210 A CN 116460210A
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- male die
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000007493 shaping process Methods 0.000 claims abstract description 36
- 238000003672 processing method Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 238000000137 annealing Methods 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 41
- 230000007704 transition Effects 0.000 claims description 30
- 238000000465 moulding Methods 0.000 claims description 29
- 238000001125 extrusion Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000010924 continuous production Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a processing method of a saw chain guide plate roller.A first driving mechanism drives an upper die assembly to move up and down, and a second driving mechanism drives a lower die assembly to rotate around a longitudinal central shaft in a 360-degree plane; the upper surface of the lower die assembly is provided with at least one forming groove with a cylindrical cavity; the lower surface of the upper die assembly is provided with a forming male die and a shaping male die which are matched with the forming groove; annealing the spherical steel balls to form spherical blanks, enabling the spherical blanks to enter a lower die assembly, extruding the spherical blanks into cylindrical blanks by a forming male die, extruding and shaping the upper end faces of the cylindrical blanks by the forming male die to obtain roller prefabricated products, and finally performing heat treatment to obtain saw chain guide plate rollers; the roller obtained by the method is more accurate in size and smoother.
Description
The present application is a divisional application of patent application of the invention with the application date of 2021.03.05, the application number of 202110244107.0 and the invention creation of a processing device and a processing method for saw chain guide rollers.
Technical Field
The invention relates to the field of roller processing, in particular to a processing method of a saw chain guide plate roller.
Background
As shown in fig. 1, a guide wheel inner ring B is fixedly arranged in a saw chain guide plate a of a chain saw, a guide wheel C meshed with a saw chain is sleeved outside the guide wheel inner ring, and a cylindrical roller D is arranged in an annular area between the guide wheel inner ring and the guide wheel. The guide wheel C can smoothly rotate around the guide wheel inner ring B by the roller D.
The cylindrical rollers act here as balls in the bearing. Therefore, the size, shape, surface roughness, etc. of the roller are very high. Any parameters such as size, shape and the like which are not satisfactory can seriously affect the normal use of the guide plate.
There are two general types of roller production and processing for saw chain guide plates. One is to draw a round rod into a wire rod of roller diameter, cut the wire rod to the desired thickness of the roller by wire cutting or other means, and then subject to subsequent processing such as heat treatment, polishing, etc.
The other is that the bar stock is directly processed to the basic size of the roller by adopting a turning processing method, and then is subjected to subsequent processing such as grinding, heat treatment, polishing and the like.
A cylindrical roller grinding device and method of the authorized publication number CN107186592B is disclosed.
However, the two methods for producing the roller for the saw chain guide plate have the problems of complex process, more processing links, low production speed, long production period, high production cost and the like, and the accuracy of machining is difficult to ensure because the roller for the saw chain guide plate is small in size.
Disclosure of Invention
The invention aims to provide a processing method of a saw chain guide plate roller, which has high production efficiency and high processing precision.
The technical scheme adopted for solving the technical problems is as follows: the processing method of the roller for the saw chain guide plate comprises the following steps:
s1, annealing the spherical steel balls to form spherical blanks;
s2, the forming male die is matched with the forming groove to extrude a spherical blank placed in the forming groove with the cylindrical cavity into a cylindrical blank;
s3, the shaping male die is matched with the shaping groove to extrude and shape the upper end face of the cylindrical blank, so that a roller prefabricated product is formed;
and S4, performing heat treatment on the roller prefabricated product obtained in the step S3 to obtain the saw chain guide plate roller.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the molding groove is formed in the lower die assembly, and the lower die assembly comprises a molding disc and a molding ejector rod penetrating from the lower part of the molding disc; the forming disc is provided with a plurality of forming grooves;
the forming male die and the shaping male die are arranged on the upper die assembly, the lower die assembly rotates by an indexing angle every time the upper die assembly moves downwards, and the forming grooves are aligned with the forming male die and the shaping male die respectively and execute the next extrusion, so that continuous production is realized.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the forming groove is formed by enclosing the inner wall of the forming through hole of the forming disc and the upper end surface of the forming ejector rod and is provided with a cylindrical cavity;
a transition disc is arranged below the forming disc, and a discharging ejector rod corresponding to the forming ejector rod is arranged on the transition disc;
a fixed disc is arranged below the transition disc, the fixed disc is provided with an annular slide way matched with the discharging ejector rod, the annular slide way has a gradient, the lowest position of the annular slide way is positioned at the feeding end, and the highest position of the annular slide way is positioned at the discharging end;
the spherical blank rotates along with the forming disc to be aligned with the forming male die and the shaping male die in sequence;
after extrusion shaping, the forming disc further rotates to enable the roller prefabricated product to reach the discharging end, the transition disc rotates along with the lower die set to drive the discharging ejector rod to move along the annular slideway and move upwards due to gradient change, and the forming ejector rod is driven to move upwards to eject the roller prefabricated product located in the forming groove.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the second driving mechanism drives the lower die assembly to enable the forming groove to move from the feeding end located at the feeding channel side to the discharging end located at the discharging channel side through the processing positions of the forming male die and the shaping male die.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the second driving mechanism comprises a longitudinal central shaft, and the forming disc and the transition coil rotate around the longitudinal central shaft in a plane of 360 degrees, so that continuous processing is realized.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the forming male die and the shaping male die are driven by a first driving mechanism to press down, and the first driving mechanism is of a motor belt crankshaft structure.
The other technical scheme adopted by the invention for solving the technical problems is as follows: the processing method of the roller for the saw chain guide plate is characterized by comprising the following steps:
s1: annealing the spherical steel balls to form spherical blanks;
s2: the spherical blank falls into a forming groove of the feeding end, and the forming groove is formed by enclosing the inner wall of a forming through hole of the forming disc and the upper end surface of a forming ejector rod penetrating from the lower part of the forming disc and is provided with a cylindrical cavity;
a transition disc is arranged below the forming disc, and a discharging ejector rod corresponding to the forming ejector rod is arranged on the transition disc;
a fixed disc is arranged below the transition disc, the fixed disc is provided with an annular slide way matched with the discharging ejector rod, the annular slide way has a gradient, the lowest position of the annular slide way is positioned at the feeding end, and the highest position of the annular slide way is positioned at the discharging end;
the spherical blank rotates along with the forming disc to the position below the forming male die, and the transition disc rotates to drive the discharging ejector rod to move along the annular slideway;
the molding male die is downwards matched with the molding groove to extrude the spherical blank placed in the molding groove into a cylindrical blank;
s3: the forming disc further rotates, and the shaping male die is matched with the forming groove to extrude and shape the upper end face of the cylindrical blank so as to form a roller preform;
the forming disc further rotates to enable the roller prefabricated product to reach a discharging end, the transition disc rotates to drive the discharging ejector rod to move along the annular slideway and move upwards due to gradient change, and the forming ejector rod is driven to move upwards to eject the roller prefabricated product positioned in the forming groove;
s4: and (3) performing heat treatment on the roller preform obtained in the step (S3) to obtain the cylindrical saw chain guide roller.
Another group of technical schemes adopted by the invention for solving the technical problems are as follows: the rotation of the forming disc and the transition disc is driven by a second driving mechanism, the second driving mechanism is connected with a roundness divider, and the roundness divider enables the forming disc to rotate one indexing angle at a time.
Another group of technical schemes adopted by the invention for solving the technical problems are as follows: the forming disc and the transition disc rotate around a longitudinal central shaft in a plane of 360 degrees, so that movement of the forming groove is realized.
Another group of technical schemes adopted by the invention for solving the technical problems are as follows: during the pause of each forming, the vibrating plate of the feeding mechanism moves, and the forming groove of the automatic feeding end falls into a spherical blank.
Compared with the prior art, the invention has the advantages that the size of the formed roller is ensured by the size precision of the spherical blank by utilizing the principle that the volume of the extruded material is unchanged, the size of the formed roller is more accurate and smoother by adding the shaping procedure after the extrusion procedure, the equipment has simple structure, convenient processing operation, high production speed and low production cost, is beneficial to application and popularization, and meanwhile, an arc chamfer is naturally formed between the cylindrical surface and the two end surfaces, so that the retention space of lubricating oil can be effectively increased, the lubricating effect is enhanced, and the friction resistance is reduced.
Drawings
The invention will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the invention. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.
FIG. 1 is a schematic view of a partial structure of a chain saw according to the present invention;
FIG. 2 is a schematic view of a saw chain guide roller according to the present invention;
FIG. 3 is a schematic view of a processing apparatus for saw chain guide rollers in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of the upper surface of the lower die assembly according to the preferred embodiment of the present invention;
FIG. 5 is a cross-sectional view of the internal structure of the processing apparatus of the saw chain guide roller in the preferred embodiment of the present invention;
FIG. 6 is an exploded view of the assembly of the lower die assembly in the preferred embodiment of the present invention;
FIG. 7 is a top view of a holding pan in a preferred embodiment of the invention;
FIG. 8 is a partial cross-sectional view of the discharge end of the holding pan in a preferred embodiment of the invention;
fig. 9 is a schematic view showing a structure of a molding pin according to a preferred embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the invention.
It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "connected," "mounted," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In this embodiment, the saw chain guide roller is manufactured by extruding a spherical blank in the shape of a sphere to form a cylindrical roller preform, and then heat treating the roller preform to obtain a finished cylindrical roller.
It should be noted that, the spherical blank can be made from standard size steel balls purchased in the market through annealing treatment, and the size of the roller after molding is ensured by the size precision of the spherical blank by utilizing the principle that the volume of the extruded material is unchanged after deformation.
The embodiment provides extrusion molding equipment for rollers, which comprises a frame, a feeding mechanism, a molding mechanism and a discharging mechanism.
As shown in fig. 3, the rack includes a base 100, a top plate 200, and a number of rack posts 300. The base 100 and the top plate 200 are connected by a stand column 300, and a processing area is formed between the base and the top plate, so as to provide a feeding mechanism provided with a feeding channel 20, a forming mechanism for extrusion forming of the spherical blank member N, a discharging mechanism provided with a discharging channel 40, and the like.
Wherein, forming mechanism includes die carrier 1 and lower die carrier 2. The lower die carrier 2 is arranged above the base 100 in an overhead manner through the frame upright 300, the upper die carrier 1 is arranged between the lower die carrier 2 and the top plate 200, a guide support structure is arranged between the lower die carrier 2 and the top plate 200, the guide support structure comprises a longitudinal guide post 700, the upper die carrier 1 can move up and down along the longitudinal guide post 700 relative to the lower die carrier 2, and the guide support structure plays a role in guide and support in the up-and-down movement process of the upper die assembly 502.
As shown in fig. 3, the molding mechanism of the present embodiment further includes a lower die assembly 501, an upper die assembly 502 mated with the lower die assembly 501, a first driving mechanism 503, and a second driving mechanism 504. The first driving mechanism 503 drives the upper die assembly 502 to move up and down, and the second driving mechanism 504 drives the lower die assembly 501 to move horizontally.
As shown in fig. 3 to 6, in particular, the lower mold assembly 501 is movably disposed on the lower mold frame 2, and the upper surface of the lower mold assembly 501 is provided with at least one molding groove 5 having a cylindrical cavity. The upper die assembly 502 is fixedly arranged below the upper die frame 1, and a forming male die 3 and a shaping male die 4 matched with the forming groove 5 are arranged on the lower surface of the upper die assembly 502. The forming male die 3 and the shaping male die 4 are arranged in parallel along the movement direction of the forming groove 5, so that the forming groove 5 can be matched with the forming male die 3 and the shaping male die 4 in sequence.
Thus, the upper die assembly 502 moves downward, and the forming punch 3 cooperates with the forming groove 5 to press the spherical blank N placed in the forming groove 5 into a cylindrical blank; the shaping punch 4 cooperates with the shaping recess 5 for extrusion shaping the upper end face of the cylindrical blank to form the roller preform M.
In the actual machining process, the second driving mechanism 504 drives the lower die assembly 501 to move the forming groove 5 from the feed end S1 located at the feed channel 20 side, through the machining sites S3 located at the forming punch 3 and the shaping punch 4, and finally to the discharge end S2 located at the discharge channel 40 side.
The feeding mechanism conveys the spherical blanks N and places them one by one through the feed channel 20 into the forming recess 5 at the feed end S1. Thereafter, the second driving mechanism 504 drives the lower die assembly 501 to move the molding groove 5 accommodating the spherical blank member N below the molding punch 3, and then the first driving mechanism 503 drives the upper die frame 1 to move downward, the molding punch 3 gradually presses the spherical blank member N, and finally the spherical blank member N is pressed into a cylindrical blank member. Then, the first driving mechanism 503 drives the upper die carrier 1 to move upward, and the second driving mechanism 504 drives the lower die carrier 501 to continue moving in the moving direction, so that the forming groove 5 containing the cylindrical blank member moves below the shaping punch 4. Then, the first driving mechanism 503 drives the upper die frame 1 to move downward, and the shaping punch 4 performs extrusion shaping on the upper end face of the cylindrical blank to form the roller preform M. Finally, the first driving mechanism 503 drives the upper die frame 1 to move upward, and the second driving mechanism 504 drives the lower die assembly 501 to move the molding pockets 5 accommodating the roller pre-forms M to the discharge channel 40 side of the discharge mechanism, and is output from the apparatus through the discharge channel 40.
It should be noted that adding a shaping step after the extrusion step makes the size of the manufactured roller preform M more accurate and smoother.
In addition, in the process of changing the spherical extrusion into the cylindrical extrusion, an arc chamfer is naturally formed between the cylindrical surface and the two end surfaces, so that the retention space of lubricating oil can be effectively increased, the lubricating effect is enhanced, and the friction resistance is reduced.
In the process of driving the upper die assembly 502 downward, the first driving mechanism 503 gradually slows down when the forming punch 3 or the shaping punch 4 contacts the workpiece to be pressed, so as to avoid excessive deformation caused by excessive pressing force.
In this embodiment, the first driving mechanism 503 provides the molding power, and the first driving mechanism 503 has a motor with a crankshaft structure, so that the existing punching machine can be utilized. Because the saw chain guide roller is small in size and the diameter is generally not more than 4.5mm, the 25 ton punch press can meet the extrusion force required by forming during forming.
As a specific embodiment, the second driving mechanism 504 includes a longitudinal central axis, the lower die assembly 501 is disposed horizontally perpendicular to the longitudinal central axis, and the lower die assembly 501 rotates around a 360-degree plane of the longitudinal central axis, thereby realizing the movement of the molding groove 5. The forming groove 5 can be rotated to the position below the forming male die 3 again by a 360-degree rotation mode, so that continuous processing is realized.
More preferably, the upper surface of the lower die assembly 501 is provided with a plurality of molding grooves 5 all along the rotation center ring shape. Depending on the product and the actual situation, 8 to 24 molding grooves 5 may be provided on the lower die assembly 501. Each time the upper die assembly 502 moves downward, the lower die assembly 501 rotates by an index angle, ensuring that the forming groove 5 is aligned with the forming punch 3 and the shaping punch 4 and the next extrusion is performed, thereby achieving continuous production. Therefore, the production efficiency is further improved, the preparation period is shortened, the production speed is high, and the production cost is reduced.
As shown in fig. 5-6, the lower die assembly 501 comprises a forming tray 6 and a forming ejector rod 7, the forming tray 6 is provided with a forming through hole 8, the forming ejector rod 7 penetrates into the forming through hole 8 from the lower part of the forming tray 6, and the upper end surface of the forming ejector rod 7 and the inner wall of the forming through hole 8 enclose to form a forming groove 5.
Further, the lower die assembly 501 further includes a mounting plate 9 disposed below the forming plate 6, and the mounting plate 9 is tightly attached to the lower surface of the forming plate 6 around the longitudinal central axis, and the mounting plate 9 is fixedly connected to the forming plate 6 to rotate synchronously. The mounting plate 9 is provided with a mounting hole 10 opposed to the molding through hole 8, and the lower section of the molding jack 7 is accommodated in the mounting hole 10.
The apparatus further includes a ejector assembly mounted below the lower die assembly 501, which drives the forming ejector pins 7 up and down along the forming through holes 8.
The ejection assembly comprises a transition disc 11, a fixed disc 12 and a discharge ejector rod 13 which are positioned below the forming ejector rod 7. The transition plate 11 is positioned between the lower die assembly 501 and the fixed plate 12 and is movable synchronously with the lower die assembly 501. The fixed plate 12 is fixedly arranged on the lower die frame 2 and does not move along with the lower die assembly 501.
The transition plate 11 is provided with a guide through hole 14 corresponding to the forming ejector rod 7, and the discharging ejector rod 13 is accommodated in the guide through hole 14. The discharging ejector rod 13 can move upwards to act on the lower end surface of the forming ejector rod 7; the downward movement acts on the upper surface of the fixed disk 12.
As shown in fig. 5-8, the upper surface of the fixed disk 12 is provided with an ejection slideway 15 which is matched with the ejection ejector rod 13. The ejection slideway 15 has a gradient, the lowest position of the ejection slideway 15 is positioned at the feeding end S1, the highest position of the ejection slideway is positioned at the discharging end S2, and the discharging ejector rod 13 moves up and down due to the gradient change when moving along the ejection slideway 15, so that the forming ejector rod 7 is driven to move up and down. Thus, when the transition tray 11 moves the ejector pins 13 along the ejector slide 15 from the feed end S1 to the discharge end S2, the roller preform M in the forming pocket 5 at the discharge end S2 is ejected from the forming through hole 8 and enters the discharge passage 40.
Corresponding to the annular forming grooves 5, the ejection slide 15 is an annular slide 15, the lowest position is located at the feeding end S1, and the highest position is located at the discharging end S2. The feeding end S1 and the discharging end S2 are in smooth transition through a slope.
As shown in fig. 5 and 9, a limiting structure is preferably provided between the forming ram 7 and the mounting hole 10 to limit the separation of the forming ram 7 from the mounting plate 9. In the present embodiment, the diameter of the mounting hole 10 is larger than the forming through hole 8 and the guide through hole 14. The forming ejector rod 7 is formed by connecting two sections of cylinders in a stepped manner, the diameter of the upper section of cylinder 71 is slightly smaller than that of the forming through hole 8, the diameter of the lower section of cylinder 72 is equal to that of the mounting hole 10, and therefore the lower section of cylinder 72 of the forming ejector rod 7 cannot enter the guide through hole 14, and the forming ejector rod 7 is limited to be separated from the mounting disc 9.
And the diameter of the upper end face of the discharging ejector rod 13 is obviously smaller than that of the lower end face of the forming ejector rod 7 by the arrangement, so that the discharging ejector rod 13 can act on the forming ejector rod 7 more stably, and the clamping caused by the skew of the discharging ejector rod 13 is avoided.
Preferably, as shown in fig. 6, the forming plate 6, the fixing plate 12, the mounting plate 9 and the transition plate 11 are all circular plate bodies, which makes the apparatus more compact.
In this embodiment, the apparatus further includes a roundness divider connected to the second driving mechanism 504. The second driving mechanism 504 and the roundness divider are provided on the base 100. The longitudinal central shaft passes through the fixed disc 12 and the lower die carrier 2 to be connected with the roundness divider. The roundness divider rotates the lower die assembly 501 one index angle at a time.
In addition, the feeding mechanism of the present embodiment is an automatic feeding mechanism, and the feeding port of the feeding channel 20 is fixed at the feeding end S1 through a bracket, so that the feeding port is aligned to the forming groove 5 at the feeding stop position. During each forming pause period, the vibration plate of the feeding mechanism moves, and the forming groove 5 of the feeding end S1 automatically drops into a spherical blank N, and the spherical blank N rotates along with the lower die assembly 501 to be formed, finally enters the discharging channel 40 from the discharging end S2 and slides to the receiving container to finish discharging.
Further preferably, as shown in fig. 3 and 4, the upper surface at the discharge end S2 of the lower die assembly 501 is provided with a discharge baffle 16, and the discharge baffle 16 guides the processed rollers into the discharge channel 40.
To sum up, it is further described that the processing method of the roller for the saw chain guide includes the following steps:
s1, annealing the spherical steel balls to form a spherical blank N;
s2, the forming male die 3 is matched with the forming groove 5 to extrude the spherical blank N placed in the forming groove 5 into a cylindrical blank;
s3, the shaping male die 4 is matched with the shaping groove 5 to extrude and shape the upper end face of the cylindrical blank so as to form a roller preform M;
s4, performing heat treatment on the roller prefabricated product M obtained in the step S3 to obtain a cylindrical roller, and performing polishing inspection on the prepared cylindrical roller to obtain a finished saw chain guide plate roller.
With the processing apparatus of this embodiment, the processing speed of the roller can be up to 200 or more per minute. The roller production method of the embodiment is simple and convenient to process, high in production speed and easy to control the dimensional accuracy and quality stability of the product. The saw chain guide roller product prepared by the processing equipment and the processing method of the embodiment has high quality, the dimensional accuracy and the surface quality of the product are close to those of the imported roller, and the price is only one sixth to one tenth of that of the imported product.
The above method for processing the saw chain guide roller provided by the invention is described in detail, and specific examples are applied to illustrate the principle and the implementation of the invention, and the above examples are only used for helping to understand the invention and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (10)
1. The processing method of the roller for the saw chain guide plate is characterized by comprising the following steps:
s1, annealing the spherical steel balls to form spherical blanks;
s2, the forming male die is matched with the forming groove to extrude a spherical blank placed in the forming groove with the cylindrical cavity into a cylindrical blank;
s3, the shaping male die is matched with the shaping groove to extrude and shape the upper end face of the cylindrical blank, so that a roller prefabricated product is formed;
and S4, performing heat treatment on the roller prefabricated product obtained in the step S3 to obtain the saw chain guide plate roller.
2. The method of processing the roller for a saw chain guide according to claim 1, wherein:
the molding groove is formed in the lower die assembly, and the lower die assembly comprises a molding disc and a molding ejector rod penetrating from the lower part of the molding disc; the forming disc is provided with a plurality of forming grooves;
the forming male die and the shaping male die are arranged on the upper die assembly, the lower die assembly rotates by an indexing angle every time the upper die assembly moves downwards, and the forming grooves are aligned with the forming male die and the shaping male die respectively and execute the next extrusion, so that continuous production is realized.
3. The method of machining the roller for the saw chain guide according to claim 2, wherein:
the forming groove is formed by enclosing the inner wall of the forming through hole of the forming disc and the upper end surface of the forming ejector rod and is provided with a cylindrical cavity;
a transition disc is arranged below the forming disc, and a discharging ejector rod corresponding to the forming ejector rod is arranged on the transition disc;
a fixed disc is arranged below the transition disc, the fixed disc is provided with an annular slide way matched with the discharging ejector rod, the annular slide way has a gradient, the lowest position of the annular slide way is positioned at the feeding end, and the highest position of the annular slide way is positioned at the discharging end;
the spherical blank rotates along with the forming disc to be aligned with the forming male die and the shaping male die in sequence;
after extrusion shaping, the forming disc further rotates to enable the roller prefabricated product to reach the discharging end, the transition disc rotates along with the lower die set to drive the discharging ejector rod to move along the annular slideway and move upwards due to gradient change, and the forming ejector rod is driven to move upwards to eject the roller prefabricated product located in the forming groove.
4. The method of processing the roller for a saw chain guide according to claim 1, wherein:
the second driving mechanism drives the lower die assembly to enable the forming groove to move from the feeding end located at the feeding channel side to the discharging end located at the discharging channel side through the processing positions of the forming male die and the shaping male die.
5. The method of processing the roller for a saw chain guide according to claim 1, wherein: the second driving mechanism comprises a longitudinal central shaft, and the forming disc and the transition coil rotate around the longitudinal central shaft in a plane of 360 degrees, so that continuous processing is realized.
6. The method of processing the roller for a saw chain guide according to claim 1, wherein: the forming male die and the shaping male die are driven by a first driving mechanism to press down, and the first driving mechanism is of a motor belt crankshaft structure.
7. The processing method of the roller for the saw chain guide plate is characterized by comprising the following steps:
s1: annealing the spherical steel balls to form spherical blanks;
s2: the spherical blank falls into a forming groove of the feeding end, and the forming groove is formed by enclosing the inner wall of a forming through hole of the forming disc and the upper end surface of a forming ejector rod penetrating from the lower part of the forming disc and is provided with a cylindrical cavity;
a transition disc is arranged below the forming disc, and a discharging ejector rod corresponding to the forming ejector rod is arranged on the transition disc;
a fixed disc is arranged below the transition disc, the fixed disc is provided with an annular slide way matched with the discharging ejector rod, the annular slide way has a gradient, the lowest position of the annular slide way is positioned at the feeding end, and the highest position of the annular slide way is positioned at the discharging end;
the spherical blank rotates along with the forming disc to the position below the forming male die, and the transition disc rotates to drive the discharging ejector rod to move along the annular slideway;
the molding male die is downwards matched with the molding groove to extrude the spherical blank placed in the molding groove into a cylindrical blank;
s3: the forming disc further rotates, and the shaping male die is matched with the forming groove to extrude and shape the upper end face of the cylindrical blank so as to form a roller preform;
the forming disc further rotates to enable the roller prefabricated product to reach a discharging end, the transition disc rotates to drive the discharging ejector rod to move along the annular slideway and move upwards due to gradient change, and the forming ejector rod is driven to move upwards to eject the roller prefabricated product positioned in the forming groove;
s4: and (3) performing heat treatment on the roller preform obtained in the step (S3) to obtain the cylindrical saw chain guide roller.
8. The method of processing the roller for the saw chain guide as recited in claim 1, wherein the rotation of the forming plate and the transition plate is driven by a second driving mechanism, the second driving mechanism being connected to a roundness divider that rotates the forming plate one index angle at a time.
9. The method of claim 1, wherein the forming plate and the transition plate are rotated about a longitudinal central axis in a 360 degree plane to effect movement of the forming groove.
10. The method of claim 1, wherein the vibratory pan of the feed mechanism is moved during each dwell period of the forming and the forming grooves of the automatic feed end drop into a spherical blank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310179872.8A CN116460210A (en) | 2021-03-05 | 2021-03-05 | Method for processing saw chain guide plate roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310179872.8A CN116460210A (en) | 2021-03-05 | 2021-03-05 | Method for processing saw chain guide plate roller |
| CN202110244107.0A CN112845881B (en) | 2021-03-05 | 2021-03-05 | Machining equipment and machining method for saw chain guide plate roller |
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| CN202110244107.0A Division CN112845881B (en) | 2021-03-05 | 2021-03-05 | Machining equipment and machining method for saw chain guide plate roller |
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| CN202110244107.0A Active CN112845881B (en) | 2021-03-05 | 2021-03-05 | Machining equipment and machining method for saw chain guide plate roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101301676A (en) * | 2008-06-17 | 2008-11-12 | 浙江天马轴承股份有限公司 | Large size roller cold-upsetting and press-forming method, and cold-upsetting and press-forming mold |
| CN102554033B (en) * | 2012-01-17 | 2016-05-11 | 洛阳市人诚轴承配件有限责任公司 | A kind of stamping die for roller cold heading machine |
| CN102886410A (en) * | 2012-10-24 | 2013-01-23 | 吴江华鹏制罐厂 | Punching machine for processing multiple workpieces |
| CN103611772B (en) * | 2013-12-03 | 2015-07-08 | 罗信精密零件(上海)有限公司 | Full-automatic multi-station automobile ABS pile-up valve end cover stamping equipment |
| CN204867268U (en) * | 2015-09-02 | 2015-12-16 | 洛阳卫创轴承模具有限公司 | A four combination cold -heading moulds for $lacking cylindrical roller spherical roller |
| CN110523853B (en) * | 2019-09-18 | 2021-07-06 | 武汉轻工大学 | Rotary multi-stage deep drawing die |
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| CN112845881B (en) | 2023-03-28 |
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