CN114227158A - Machining method and machining tool for piston pin hole - Google Patents
Machining method and machining tool for piston pin hole Download PDFInfo
- Publication number
- CN114227158A CN114227158A CN202111512790.8A CN202111512790A CN114227158A CN 114227158 A CN114227158 A CN 114227158A CN 202111512790 A CN202111512790 A CN 202111512790A CN 114227158 A CN114227158 A CN 114227158A
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- 238000003754 machining Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000003672 processing method Methods 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 32
- 239000002699 waste material Substances 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 9
- 230000010405 clearance mechanism Effects 0.000 claims description 4
- 239000011799 hole material Substances 0.000 description 45
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000003127 knee Anatomy 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0067—Devices for removing chips chip containers located under a machine or under a chip conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a processing method and a processing cutter for a piston pin hole, and relates to the technical field of piston pin hole processing. The invention comprises the following steps: s1, material preparation: and (3) after the seam allowance is subjected to heat treatment, a seam allowance maker is used for taking and placing the seam allowance maker into a piston machining production line, flash and burr are removed during machining, then a chuck is used for clamping, machining is carried out by using a combined tool, and S2, rough boring: it has tang chassis, boring cutter and locating pin to press from both sides the processing worker, sees earlier before the bore hole whether have the overlap burr, S3, excircle rough machining in the hole: the flange is turned to form a spigot surface, the pull rod and the pin pass through the headstock, the back of the headstock is tightly pinned by the nut, and then the headstock is processed.
Description
Technical Field
The invention belongs to the technical field of piston pin hole machining, and particularly relates to a piston pin hole machining method and a machining tool.
Background
The piston is a key part of an engine, the heat resistance, the wear resistance, the stable guidance and the good sealing performance of the piston can reduce the friction work loss of the engine, reduce oil consumption, noise and pollution, and the pin hole is easily scratched by waste materials generated in extrusion cutting when the piston pin hole is machined when a tool is withdrawn, so that the machining method and the machining tool for the piston pin hole are provided.
Disclosure of Invention
The invention aims to provide a processing method and a processing cutter for a piston pin hole, which solve the existing problems by cleaning the inner part of the piston pin hole during processing.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a method for processing a piston pin hole, which comprises the following steps:
s1, material preparation: a seam allowance is taken by a seam allowance making worker and placed in a piston processing production line after heat treatment, flash and burr are removed during processing, then a chuck is used for clamping, and a combined tool is used for processing;
s2, roughly boring: the clamping and processing tool is provided with a spigot base plate, a boring cutter and a positioning pin, and before boring, whether flash and burr exist in a hole or not is firstly observed;
s3, outer circle rough machining: turning a spigot surface at the position by using a flange, passing a draw bar and a pin through a headstock, tightly pinning the rear part by using a nut, and then processing, and positioning the total length to be processed during processing;
s4, drilling: marking a line by using one shaft, dividing the number of degrees, drilling holes by using a drill bit, and observing the accurate position of the piston when drilling the holes;
s5, retracting the cutter: the waste inside the piston pin hole needs to be observed when the cutter is withdrawn, and scratches are generated on the inner wall of the pin hole when the cutter extrudes the waste.
Further, the piston needs to be fixed by a chuck after flash and burr are removed, and a pin hole is formed in the fixed piston through a cutter.
Further, the machining tool for the piston pin hole comprises a shell, two moving doors and sliding grooves, wherein the moving doors are arranged on the front face of the shell, the two moving doors are in contact with the top of the shell, the sliding grooves are formed in the bottom of the shell, and the bottoms of the moving doors are in contact with the inner walls of the sliding grooves;
the shell comprises a fixed frame, a blanking mechanism, a bottom groove, a blanking port, a material storage frame, a bottom plate, a fixed rod, a cutting mechanism and a hydraulic rod, a bottom groove is arranged at the bottom of the inner wall of the shell, the storage rack is contacted with the inner wall of the bottom groove, the bottom plate is fixedly connected with the left inner wall and the right inner wall of the shell through a fixed rod, the bottom of the bottom plate is provided with a feed opening, the interior of the feed opening is provided with a feed mechanism, the fixed frame is fixedly connected with the top of the bottom plate, a cutting mechanism is arranged on the inner wall of the right side of the fixed frame, a hydraulic rod is fixedly connected with the inner wall of the left side of the fixed frame, a cooler is fixedly connected with the top of the inner wall of the shell, waste materials generated during processing of the piston can enter the storage rack through the feed opening, so that the waste materials can be conveniently collected in a unified manner, and the storage rack can be directly taken away for processing when the waste materials are processed;
cutting mechanism includes straight-bar, circular slot, spacing groove, clearance mechanism, cutting knife, stock mechanism and spread groove, straight-bar and mount fixed connection, the circular slot has been seted up on the surface of straight-bar, the spread groove has been seted up to the inside of straight-bar, the spacing groove has been seted up to the left side surface of straight-bar, the inside of spacing groove is provided with stock mechanism, the top of spacing groove is provided with clearance mechanism, the cutting knife contacts through the surface of hydraulic stem and piston with the left side fixed surface of straight-bar, the cutting knife starts the blowout coolant liquid cutting knife and cools down for the adversary when the cooler cutting knife contacts the piston.
Further, the left side of the connecting groove penetrates through the left side of the straight rod, and the right side of the connecting groove is communicated with the inner wall of the circular groove.
Furthermore, the material storage mechanism comprises a connecting rod, a groove frame, movable blocks, movable rods and arc elastic rods, the tops of the connecting rods are movably connected with the inner wall of the limiting groove through rotating shafts, the bottoms of the connecting rods are fixedly connected with the tops of the movable blocks, the outer surfaces of the movable blocks are movably connected with the movable rods through the rotating shafts, the number of the movable rods is two, and the tops of the two movable rods are fixedly connected with the bottoms of the arc elastic rods;
the inner wall bottom fixed connection of groove frame and spacing groove, the straight-bar can get into the inside of pinhole when the cutting knife carries out the pinhole to the piston, and the waste material that the pinhole is inside can drop into the inside of groove frame, avoids the cutting knife to extrude the inner wall of waste material fish tail pinhole when withdrawing from, the movable rod contacts with the inner wall of groove frame.
Furthermore, the cleaning mechanism comprises a semicircular elastic rod, a cross rod, a vertical rod, a sliding block, a rubber ball and bristles, wherein the semicircular elastic rod is fixedly connected with the top of the connecting rod, one end of the semicircular elastic rod, which is far away from the connecting rod, is fixedly connected with the cross rod, the cross rod enables the bristles to be attached to the inner wall of the pin hole through the rubber ball, the rubber ball is bonded to the inner wall of the cross rod, the vertical rod is fixedly connected to the inner wall of one end, which is close to the semicircular elastic rod, of the cross rod, the sliding block is fixedly connected to the inner wall of one end, which is far away from the semicircular elastic rod, of the cross rod, and the bristles are bonded to the outer surface of one end, which is far away from the semicircular elastic rod, of the cross rod;
the bristles are arranged above the limiting groove.
Further, the inner wall of the sliding block is in contact with the outer surface of the drop rod, and the number of the rubber balls is three.
Furthermore, the blanking mechanism comprises a curved bar, an elliptical slider, a movable plate, a transverse groove and an arc movable bar, the arc movable bar is movably connected with the inner part of the blanking port through a rotating shaft, the top of the arc movable bar is fixedly connected with the elliptical slider, the curved bar is movably connected with the inner wall of the blanking port through the rotating shaft, waste materials generated during piston machining can be in contact with the surface of the curved bar, the curved bar can shake off the waste materials on the surface of the curved bar through the vibration of the elliptical slider, the movable plate is fixedly connected with the top of the curved bar, and the transverse groove is formed in the fixed frame;
the feed opening is communicated with the top of the storage rack.
Further, the movable plate is in contact with the outer surface of the top of the bottom plate, the movable plate is in contact with the inner wall of the transverse groove, and the elliptic slide block is in contact with the inner wall of the bent rod.
The invention has the following beneficial effects:
according to the invention, the cooling liquid can enter the inside of the connecting groove through the circular groove on the surface of the straight rod, the connecting groove is communicated with the left side of the straight rod, the cooling liquid can be in contact with the surface of the piston through the connecting groove, and the cooling liquid can be in direct contact with the surface of the cutting knife through the connecting groove, so that the cooling effect of the cooling liquid on the cutting knife is increased.
According to the invention, when the cutting knife is used for pin hole making of the piston, the straight rod can enter the pin hole, and waste materials generated in the pin hole can fall into the groove frame for storage through cleaning of the bristles, so that the cutting knife is prevented from extruding the waste materials to scratch the inner wall of the pin hole when the cutting knife exits.
According to the invention, the cross rod can clean the waste material on the inner wall of the pin hole by rotating the straight rod in the pin hole, the cross rod can push the bristles to the surface of the pin hole through the rubber ball, the cleaning effect of the bristles on the inner wall of the pin hole is increased, the cross rod can be contracted through the elasticity of the rubber ball, and the phenomenon that the cross rod extrudes the waste material to scratch the inner wall of the pin hole is avoided.
According to the invention, the arc movable rod can push the bottom of the bent rod through vibration generated during processing, and waste materials on the surface of the bent rod can fall into the storage rack through vibration, so that more waste materials are prevented from being blocked in the discharging port.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a front sectional structural view of the housing of the present invention;
FIG. 4 is a front cross-sectional structural view of a straight rod of the present invention;
FIG. 5 is an enlarged view of section C of FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of portion B of FIG. 4 according to the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 3 according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a housing; 10. a fixed mount; 11. a blanking mechanism; 111. bending a rod; 112. an elliptical slider; 113. moving the plate; 114. a transverse groove; 115. a circular arc movable rod; 12. a bottom groove; 13. a feeding port; 14. a storage rack; 15. a base plate; 16. fixing the rod; 17. a cutting mechanism; 171. a straight rod; 172. a circular groove; 173. a limiting groove; 174. a cleaning mechanism; 1741. a semicircular elastic rod; 1742. a cross bar; 1743. a drop bar; 1744. a slider; 1745. a rubber ball; 1746. brushing; 175. a cutting knife; 176. a material storage mechanism; 1761. a connecting rod; 1762. a groove frame; 1763. a movable block; 1764. a movable rod; 1765. a circular arc spring rod; 177. connecting grooves; 18. a hydraulic lever; 2. a movable door; 3. a chute.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention is a method for machining a piston pin hole, including the steps of:
s1, material preparation: a seam allowance is taken by a seam allowance making worker and placed in a piston processing production line after heat treatment, flash and burr are removed during processing, then a chuck is used for clamping, and a combined tool is used for processing;
s2, roughly boring: the clamping and processing tool is provided with a spigot base plate, a boring cutter and a positioning pin, and before boring, whether flash and burr exist in a hole or not is firstly observed;
s3, outer circle rough machining: turning a spigot surface at the position by using a flange, passing a draw bar and a pin through a headstock, tightly pinning the rear part by using a nut, and then processing, and positioning the total length to be processed during processing;
s4, drilling: marking a line by using one shaft, dividing the number of degrees, drilling holes by using a drill bit, and observing the accurate position of the piston when drilling the holes;
s5, retracting the cutter: the waste inside the piston pin hole needs to be observed when the cutter is withdrawn, and scratches are generated on the inner wall of the pin hole when the cutter extrudes the waste.
The piston needs to be fixed by a chuck after flash and burrs are removed, and a pin hole is formed in the fixed piston through a cutter.
A processing cutter for piston pin holes comprises a shell 1, two movable doors 2 and two sliding grooves 3, wherein the movable doors 2 are arranged on the front surface of the shell 1, the two movable doors 2 are in contact with the top of the shell 1, the sliding grooves 3 are formed in the bottom of the shell 1, and the bottoms of the movable doors 2 are in contact with the inner walls of the sliding grooves 3;
the shell 1 comprises a fixed frame 10, a blanking mechanism 11, a bottom groove 12, a blanking port 13, a material storage frame 14, a bottom plate 15, a fixed rod 16, a cutting mechanism 17 and a hydraulic rod 18, wherein the bottom groove 12 is formed in the bottom of the inner wall of the shell 1, the material storage frame 14 is in contact with the inner wall of the bottom groove 12, the bottom plate 15 is fixedly connected with the left inner wall and the right inner wall of the shell 1 through the fixed rod 16, the blanking port 13 is formed in the bottom of the bottom plate 15, the blanking mechanism 11 is arranged inside the blanking port 13, the fixed frame 10 is fixedly connected with the top of the bottom plate 15, the cutting mechanism 17 is arranged on the inner wall of the right side of the fixed frame 10, the hydraulic rod 18 is fixedly connected with the inner wall of the fixed frame 10, and a cooler is fixedly connected with the top of the inner wall of the shell 1;
the cutting mechanism 17 comprises a straight rod 171, a circular groove 172, a limiting groove 173, a cleaning mechanism 174, a cutting knife 175, a material storing mechanism 176 and a connecting groove 177, the straight rod 171 is fixedly connected with the fixed frame 10, the circular groove 172 is formed in the surface of the straight rod 171, the connecting groove 177 is formed in the straight rod 171, the limiting groove 173 is formed in the left outer surface of the straight rod 171, the material storing mechanism 176 is arranged in the limiting groove 173, the cleaning mechanism 174 is arranged at the top of the limiting groove 173, the cutting knife 175 is fixedly connected with the left outer surface of the straight rod 171, cooling liquid can enter the connecting groove 177 through the circular groove 172 in the surface of the straight rod 171, the connecting groove 173 is communicated with the left side of the straight rod 171, the cooling liquid can be in contact with the surface of the piston through the connecting groove 177, and the cooling effect of the cooling liquid on the cutting knife 175 is increased by direct contact with the surface of the cutting knife 175 through the connecting groove 177.
The left side of the connecting groove 177 penetrates through the left side of the straight rod 171, and the right side of the connecting groove 177 is communicated with the inner wall of the circular groove 172.
The material storage mechanism 176 comprises a connecting rod 1761, a groove frame 1762, movable blocks 1763, movable rods 1764 and arc elastic rods 1765, the top of the connecting rod 1761 is movably connected with the inner wall of the limit groove 173 through a rotating shaft, the bottom of the connecting rod 1761 is fixedly connected with the top of the movable blocks 1763, the outer surface of the movable blocks 1763 is movably connected with the movable rods 1764 through the rotating shaft, the number of the movable rods 1764 is two, and the tops of the two movable rods 1764 are fixedly connected with the bottom of the arc elastic rods 1765;
the groove rest 1762 is fixedly connected with the bottom of the inner wall of the limit groove 173, and the movable rod 1764 is in contact with the inner wall of the groove rest 1762.
The cleaning mechanism 174 comprises a semicircular elastic rod 1741, a cross rod 1742, a vertical rod 1743, a sliding block 1744, a rubber ball 1745 and bristles 1746, the semicircular elastic rod 1741 is fixedly connected with the top of a connecting rod 1761, one end of the semicircular elastic rod 1741, which is far away from the connecting rod 1761, is fixedly connected with the cross rod 1742, the cross rod 1742 can clean waste materials on the inner wall of a pin hole through the rotation of a straight rod 171 in the pin hole, the cross rod 1742 can push the bristles 1746 to the surface of the pin hole through the rubber ball 1745 to increase the cleaning effect of the bristles on the inner wall of the pin hole, the cross rod 1742 can be contracted through the elasticity of the rubber ball 1745 to prevent the cross rod 1742 from extruding the waste materials to scratch the inner wall of the pin hole, the rubber ball 1745 is bonded on the inner wall of the cross rod 1742, the vertical rod 1743 is fixedly connected with the inner wall of one end of the cross rod 1742, the end of the cross rod 1742, which is far away from the semicircular elastic rod 1741, the sliding block 1744 is fixedly connected with the inner wall of the cross rod 1742, the outer surface of one end of the cross rod 1742, which is far away from the semicircular elastic rod 1741 is bonded with the bristles 1746, according to the invention, when the cutter 175 performs pin hole processing on the piston, the straight rod 171 can enter the pin hole, and waste materials generated during the pin hole can fall into the groove frame 1762 for storage through cleaning of the bristles 1746, so that the cutter 175 is prevented from scratching the inner wall of the pin hole when the cutter exits and extrudes the waste materials;
bristles 1746 are disposed above the retaining grooves 173.
The inner wall of the slider 1744 contacts the outer surface of the drop bar 1743, and there are three rubber balls 1745.
The blanking mechanism 11 comprises a curved rod 111, an elliptical slider 112, a moving plate 113, a transverse groove 114 and an arc moving rod 115, the arc moving rod 115 is movably connected with the inside of the blanking port 13 through a rotating shaft, the top of the arc moving rod 115 is fixedly connected with the elliptical slider 112, the curved rod 111 is movably connected with the inner wall of the blanking port 13 through the rotating shaft, the top of the curved rod 111 is fixedly connected with the moving plate 113, and the transverse groove 114 is formed in the fixed frame 10;
the feed opening 13 is communicated with the top of the storage rack 14.
The moving plate 113 is in contact with the top outer surface of the bottom plate 15, the moving plate 113 is in contact with the inner wall of the transverse groove 114, and the elliptical slider 112 is in contact with the inner wall of the curved bar 111.
One specific application of this embodiment is: the hydraulic rod 18 pushes the piston to move towards the surface of the cutting knife 175, the cooling machine can spray cooling to cool the cutting knife 175 after being started, cooling liquid can enter the inside of the connecting groove 177 through the circular groove 172 to be in contact with the surface of the piston, the bristles 1746 can rotate inside the piston pin hole through the rotation of the straight rod 171, the bristles 1746 can be attached to the inner wall of the piston pin hole through the elasticity of the rubber ball 1745, the cross rod 1742 can be fixed and limited with the sliding block 1744 through the vertical rod 1743, waste materials cleaned by the bristles 1746 can fall into the groove frame 1762, can twist horizontal pole 1742 and drive connecting rod 1761 and remove, semicircle elastic rod 1741 can push out two through the inside waste material of recess frame 1762 of the promotion of connecting rod 176, and the waste material can contact with the surface of knee 111 when dropping into the inside of feed opening 13, and circular arc movable rod 115 can drive knee 111 through the vibrations that produce during processing and rock the efficiency that increases the waste material and pass through feed opening 13.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A processing method of a piston pin hole is characterized in that: the method comprises the following steps:
s1, material preparation: a seam allowance is taken by a seam allowance making worker and placed in a piston processing production line after heat treatment, flash and burr are removed during processing, then a chuck is used for clamping, and a combined tool is used for processing;
s2, roughly boring: the clamping and processing tool is provided with a spigot base plate, a boring cutter and a positioning pin, and before boring, whether flash and burr exist in a hole or not is firstly observed;
s3, outer circle rough machining: turning a spigot surface at the position by using a flange, passing a draw bar and a pin through a headstock, tightly pinning the rear part by using a nut, and then processing, and positioning the total length to be processed during processing;
s4, drilling: marking a line by using one shaft, dividing the number of degrees, drilling holes by using a drill bit, and observing the accurate position of the piston when drilling the holes;
s5, retracting the cutter: the waste inside the piston pin hole needs to be observed when the cutter is withdrawn, and scratches are generated on the inner wall of the pin hole when the cutter extrudes the waste.
2. The method of machining a piston pin bore according to claim 1, wherein: the piston needs to be fixed by a chuck after flash and burr are removed, and a cutter is used for pin holes of the fixed piston.
3. The utility model provides a processing cutter of piston pin hole, includes casing (1), floating gate (2) and spout (3), its characterized in that: the front surface of the shell (1) is provided with two movable doors (2), the two movable doors (2) are in contact with the top of the shell (1), the bottom of the shell (1) is provided with a sliding groove (3), and the bottom of each movable door (2) is in contact with the inner wall of the sliding groove (3);
the shell (1) comprises a fixing frame (10), a blanking mechanism (11), a bottom groove (12), a blanking opening (13), a storage rack (14), a bottom plate (15), a fixing rod (16), a cutting mechanism (17) and a hydraulic rod (18), wherein the bottom groove (12) is formed in the bottom of the inner wall of the shell (1), the storage rack (14) is in contact with the inner wall of the bottom groove (12), the bottom plate (15) is fixedly connected with the left inner wall and the right inner wall of the shell (1) through the fixing rod (16), the blanking opening (13) is formed in the bottom of the bottom plate (15), the blanking mechanism (11) is arranged inside the blanking opening (13), the fixing frame (10) is fixedly connected with the top of the bottom plate (15), the cutting mechanism (17) is arranged on the inner wall of the right side of the fixing frame (10), the hydraulic rod (18) is fixedly connected with the inner wall of the left side of the fixing frame (10), the top of the inner wall of the shell (1) is fixedly connected with a cooler;
cutting mechanism (17) include straight-bar (171), circular slot (172), spacing groove (173), clearance mechanism (174), cutting knife (175), material storage mechanism (176) and connecting groove (177), straight-bar (171) and mount (10) fixed connection, circular slot (172) have been seted up on the surface of straight-bar (171), connecting groove (177) have been seted up to the inside of straight-bar (171), spacing groove (173) have been seted up to the left side surface of straight-bar (171), the inside of spacing groove (173) is provided with material storage mechanism (176), the top of spacing groove (173) is provided with clearance mechanism (174), cutting knife (175) and the left side surface fixed connection of straight-bar (171).
4. The tool for machining a piston pin hole according to claim 3, wherein: the left side of the connecting groove (177) penetrates through the left side of the straight rod (171), and the right side of the connecting groove (177) is communicated with the inner wall of the circular groove (172).
5. The tool for machining a piston pin hole according to claim 3, wherein: the material storage mechanism (176) comprises a connecting rod (1761), a groove frame (1762), two movable blocks (1763), two movable rods (1764) and two arc elastic rods (1765), the tops of the connecting rod (1761) are movably connected with the inner wall of the limiting groove (173) through a rotating shaft, the bottoms of the connecting rod (1761) are fixedly connected with the tops of the movable blocks (1763), the outer surfaces of the movable blocks (1763) are movably connected with the movable rods (1764) through the rotating shaft, the number of the movable rods (1764) is two, and the tops of the two movable rods (1764) are fixedly connected with the bottoms of the arc elastic rods (1765);
the groove frame (1762) is fixedly connected with the bottom of the inner wall of the limiting groove (173), and the movable rod (1764) is in contact with the inner wall of the groove frame (1762).
6. The tool for machining a piston pin hole according to claim 3, wherein: the cleaning mechanism (174) comprises a semicircular elastic rod (1741), a cross rod (1742), a vertical rod (1743), a sliding block (1744), a rubber ball (1745) and bristles (1746), wherein the semicircular elastic rod (1741) is fixedly connected with the top of a connecting rod (1761), one end, far away from the connecting rod (1761), of the semicircular elastic rod (1741) is fixedly connected with the cross rod (1742), the rubber ball (1745) is bonded on the inner wall of the cross rod (1742), the vertical rod (1743) is fixedly connected with the inner wall of one end, close to the semicircular elastic rod (1741), of the cross rod (1742), the sliding block (1744) is fixedly connected with the inner wall of one end, far away from the semicircular elastic rod (1741), of the cross rod (1742), and the bristles (1746) are bonded on the outer surface of one end, far away from the semicircular elastic rod (1741);
the bristles (1746) are disposed above the retaining grooves (173).
7. The tool for machining a piston pin bore according to claim 6, wherein: the inner wall of the sliding block (1744) is in contact with the outer surface of the vertical rod (1743), and the number of the rubber balls (1745) is three.
8. The tool for machining a piston pin hole according to claim 3, wherein: the blanking mechanism (11) comprises a bent rod (111), an oval sliding block (112), a moving plate (113), a transverse groove (114) and an arc movable rod (115), the arc movable rod (115) is movably connected with the interior of the blanking port (13) through a rotating shaft, the top of the arc movable rod (115) is fixedly connected with the oval sliding block (112), the bent rod (111) is movably connected with the inner wall of the blanking port (13) through the rotating shaft, the top of the bent rod (111) is fixedly connected with the moving plate (113), and the transverse groove (114) is formed in the fixed frame (10);
the feed opening (13) is communicated with the top of the storage rack (14).
9. The tool for machining a piston pin bore according to claim 8, wherein: the movable plate (113) is in contact with the outer surface of the top of the bottom plate (15), the movable plate (113) is in contact with the inner wall of the transverse groove (114), and the elliptic slide block (112) is in contact with the inner wall of the bent rod (111).
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| CN202111512790.8A CN114227158B (en) | 2021-12-11 | 2021-12-11 | Machining method and machine tool for piston pin hole |
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| CN114227158B CN114227158B (en) | 2022-12-06 |
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|---|---|---|---|---|
| JPH09126050A (en) * | 1996-08-27 | 1997-05-13 | Unisia Jecs Corp | Manufacture of piston for internal combustion engine |
| US20130062218A1 (en) * | 2010-05-11 | 2013-03-14 | Ks Kolbenschmidt Gmbh | Method for producing an arbitrary geometry on pistons of internal combustion engines |
| CN104190971A (en) * | 2014-09-24 | 2014-12-10 | 安庆雅德帝伯活塞有限公司 | Efficient multifunctional tool for finish machining of piston |
| CN207746495U (en) * | 2018-01-10 | 2018-08-21 | 瑞安市创泰活塞制造有限公司 | A kind of cutter being integrally machined station for piston pin hole and pin hole inner shield ring slot |
| CN213289301U (en) * | 2020-09-18 | 2021-05-28 | 扬州光辉汽车零部件有限公司 | Piston pin excircle chamfer rolling processing device |
| CN213350909U (en) * | 2020-09-22 | 2021-06-04 | 扬州光辉汽车零部件有限公司 | Piston pin drilling device |
-
2021
- 2021-12-11 CN CN202111512790.8A patent/CN114227158B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09126050A (en) * | 1996-08-27 | 1997-05-13 | Unisia Jecs Corp | Manufacture of piston for internal combustion engine |
| US20130062218A1 (en) * | 2010-05-11 | 2013-03-14 | Ks Kolbenschmidt Gmbh | Method for producing an arbitrary geometry on pistons of internal combustion engines |
| CN104190971A (en) * | 2014-09-24 | 2014-12-10 | 安庆雅德帝伯活塞有限公司 | Efficient multifunctional tool for finish machining of piston |
| CN207746495U (en) * | 2018-01-10 | 2018-08-21 | 瑞安市创泰活塞制造有限公司 | A kind of cutter being integrally machined station for piston pin hole and pin hole inner shield ring slot |
| CN213289301U (en) * | 2020-09-18 | 2021-05-28 | 扬州光辉汽车零部件有限公司 | Piston pin excircle chamfer rolling processing device |
| CN213350909U (en) * | 2020-09-22 | 2021-06-04 | 扬州光辉汽车零部件有限公司 | Piston pin drilling device |
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| CN114227158B (en) | 2022-12-06 |
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Denomination of invention: A machining method and machine tool for piston pin holes Granted publication date: 20221206 Pledgee: Yangzhou Branch of Societe Generale Bank Co.,Ltd. Pledgor: YANGZHOU GUANGHUI AUTOMOTIVE COMPONENTS LTD. Registration number: Y2024980014635 |