CN108555709B - Piston elliptical pin hole machining device and method - Google Patents
Piston elliptical pin hole machining device and method Download PDFInfo
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- CN108555709B CN108555709B CN201810630832.XA CN201810630832A CN108555709B CN 108555709 B CN108555709 B CN 108555709B CN 201810630832 A CN201810630832 A CN 201810630832A CN 108555709 B CN108555709 B CN 108555709B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a piston elliptical pin hole processing device and a method, wherein the device comprises the following steps: the base and the main rotating shaft are matched; the angle adjusting plate is covered on the base and is connected with the main rotating shaft; the zero return plate is fixedly connected to the side surface of the base, and an inner cavity space is formed between the zero return plate and the side surface of the base; the oblique iron is arranged on the top oblique plane of the base; the screw rod is connected with the oblique iron; the auxiliary rotating shaft is arranged between the angle adjusting plate and the oblique iron, is arranged at intervals with the main rotating shaft and is parallel to the main rotating shaft; a first fixed rod member; a second fixed rod member; the first fixed block is matched with the first fixed rod piece; the second fixed block is matched with the second fixed rod piece; a plurality of adjustment nuts. By the technical scheme, the piston elliptical pin hole can be machined, the machining process is simple, the machining efficiency is improved, and the quality and the dimensional accuracy of machined workpieces are improved.
Description
Technical Field
The invention relates to the technical field of piston machining, in particular to a piston elliptical pin hole machining device and a piston elliptical pin hole machining method.
Background
The traditional piston pin hole is cylindrical, but with the continuous increase of the thermal load and the mechanical load of a diesel engine, the specific pressure of the pin hole is higher and higher, and meanwhile, the temperature of the surface of the pin hole is higher and higher, and the design requirement of the traditional piston section shape design cannot be met. The piston elliptical pin bore has significant effects on improving the stress distribution of the piston pin bore and the stress distribution of the combustion chamber portion, as well as benefits on improving the noise of the engine. However, the existing piston pin hole processing equipment has limited processing capacity and becomes a processing bottleneck. In order to obtain the elliptical pin hole of the piston, processing equipment is added, so that time and labor are wasted, the processing efficiency is low, and the labor cost and the production cost are increased.
In the related art, the processing boring machine for processing the piston special-shaped pin hole has insufficient processing capability and can not realize the processing of the piston oval-shaped pin hole. The boring machine with piston elliptical pin hole processing capability is generally provided, and the adopted elliptical hole processing device is of a connecting rod structure, has poor structural rigidity and unstable adjustment, and seriously affects the processing precision of the original machine tool.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, an object of the present invention is to provide a piston elliptical pin bore machining apparatus.
Another object of the present invention is to provide a method of manufacturing an elliptical pin bore of a piston.
In order to achieve the above object, the present invention provides a piston elliptical pin hole machining device, which is suitable for a piston pin hole machining apparatus, the piston pin hole machining apparatus is provided with a machining spindle, and includes: the piston elliptical pin hole machining device comprises: the base and the main rotating shaft are matched; the angle adjusting plate is covered on the base and is connected with the main rotating shaft, the angle adjusting plate can move up and down around the main rotating shaft, the processing main shaft is placed on the top surface of the angle adjusting plate, and the direction of the central line of the processing main shaft is consistent with the movement adjusting direction of the angle adjusting plate; the zero return plate is fixedly connected to the side surface of the base, and an inner cavity space is formed between the zero return plate and the side surface of the base; the oblique iron is arranged on the top inclined plane of the base and is positioned below the angle adjusting plate; the screw rod is connected with the oblique iron and is used for pushing the bottom oblique surface of the oblique iron to move along the top oblique surface of the base; the auxiliary rotating shaft is arranged between the angle adjusting plate and the oblique iron, the auxiliary rotating shaft and the main rotating shaft are arranged at intervals, the auxiliary rotating shaft is parallel to the main rotating shaft, and the angle adjusting plate can move up and down around the auxiliary rotating shaft; the first fixed rod piece sequentially passes through the angle adjusting plate and the main rotating shaft and is fixedly connected with the base; the second fixed rod piece sequentially passes through the angle adjusting plate, the auxiliary rotating shaft and the oblique iron and is fixedly connected with the base; the first fixing block is matched with the first fixing rod piece and used for fixing the first fixing rod piece; the second fixing block is matched with the second fixing rod piece and is used for fixing the second fixing rod piece; the adjusting nuts are respectively a first adjusting nut and a second adjusting nut, are sleeved on the screw rod, the first adjusting nut is arranged in the inner cavity space of the zeroing plate, and the second adjusting nut is arranged on the outer side of the zeroing plate.
In the scheme, the angle adjusting plate can be supported by the base and the main rotating shaft which are matched, and the rotation of the angle adjusting plate is realized, so that the angle adjustment of the center line of the processing main shaft is realized, the processing main shaft can be supported by the angle adjusting plate which is covered on the base and driven to move, the angle adjusting plate is connected with the main rotating shaft, the angle adjusting plate can move up and down around the main rotating shaft, the angle adjusting plate can be reset by the zeroing plate which is fixedly connected on the side surface of the base, the angle resetting accuracy is higher, the power is provided for the rotation of the angle adjusting plate by the inclined iron which is arranged on the top inclined surface of the base and is positioned below the angle adjusting plate, the bottom inclined surface of the inclined iron can be pushed to move along the top inclined surface of the base by the screw rod which is connected with the inclined iron, and the rotation of the angle adjusting plate is realized, the invention improves the stability of angle adjustment, ensures the processing precision of the original equipment, can be mutually matched with a main rotating shaft through the auxiliary rotating shaft arranged between the angle adjusting plate and the oblique iron, is further beneficial to the up-and-down movement and rotation of the angle adjusting plate, reduces the external force required by the up-and-down movement and rotation of the angle adjusting plate, improves the overall stability of the device, realizes the loosening and the fixation of each part on the device through the first fixed rod piece, the second fixed rod piece, the first fixed block, the second fixed block and a plurality of adjusting nuts, is beneficial to adjusting the angle of a processing main shaft at any time, realizes the processing of a piston elliptical pin hole, is beneficial to stabilizing the whole device, ensures the processing precision of the equipment, can be installed on the existing piston pin hole processing equipment without introducing new equipment, the piston elliptical pin hole processing can be realized, the processing process is simple, the processing efficiency is improved, and the quality and the dimensional accuracy of a processed workpiece are improved, so that the production efficiency is improved, and the production cost is reduced.
Specifically, when the angle of the processing main shaft needs to be adjusted, the first fixed rod piece, the second fixed rod piece and the second adjusting nut are loosened, the first adjusting nut is screwed, the control screw rod pushes the inclined iron to advance along the top inclined surface of the base, the angle adjusting plate rotates by taking the main rotating shaft as the circle center, when the angle between the center line of the processing main shaft and the center line of the piston pin hole reaches the preset condition, the first fixed block and the second fixed block are adjusted, the first fixed rod piece, the second fixed rod piece, the first adjusting nut and the second adjusting nut are fixed, and the adjustment of the angle of the processing main shaft is completed.
Preferably, the first fixing rod is a fixing screw and/or a fixing bolt; the second fixed rod piece is a fixed screw and/or a fixed bolt.
In this scheme, through set screw and/or fixing bolt as first fixed member, the second fixed member has promoted the assembly convenience, and processing cost is low moreover.
Preferably, the method further comprises: the first adjusting rotating shaft is arranged at the top of the angle adjusting plate, is arranged in parallel with the main rotating shaft and penetrates through the first adjusting rotating shaft; the second adjusting rotating shaft is arranged at the top of the angle adjusting plate, is arranged in parallel with the auxiliary rotating shaft and penetrates through the second adjusting rotating shaft.
In this scheme, through first adjustment pivot and second adjustment pivot, further promoted the rotatory flexibility of up-and-down motion of angle adjustment board to promoted regulation stability, when guaranteeing machining precision, promoted machining efficiency.
Preferably, the method further comprises: the fixing plate is fixedly connected to the side surfaces of the base and the angle adjusting plate, and the side surface where the fixing plate is located is perpendicular to the side surface where the screw rod is located.
In this scheme, fixed connection locates the fixed plate on the side of base and angle adjustment board, and the fixed plate is motionless at whole angle adjustment in-process, when having ensured the main shaft angle adjustment of processing, the machining precision of former equipment keeps unchanged, is realizing the oval pinhole processing of piston, has ensured machining precision when improving machining efficiency.
Preferably, one end of the fixing plate is fixedly connected with the angle adjusting plate through a first screw and/or a first bolt, and the other end of the fixing plate is attached to the side surface of the base; the zeroing plate is fixedly connected with the base through a second screw and/or a second bolt.
In this scheme, the one end and the angle adjustment board of fixed plate pass through first screw fixed connection and/or first bolt fixed connection, and the other end laminating of fixed plate has further ensured the stability of processing main shaft angle adjustment in-process on the side of base, has ensured overall structure's stability, and the zeroing board passes through second screw fixed connection and/or second bolt fixed connection with the base, has further ensured the stability of processing main shaft angle adjustment in-process, has ensured overall structure's stability.
Preferably, the mounting hole of the second fixed rod piece arranged on the oblique iron is a key groove, and the length of the key groove in the moving direction of the oblique iron is larger than the width of the second fixed rod piece.
In this scheme, the mounting hole of the second fixed member that sets up on the angle bar is the keyway, and the length of keyway on angle bar removal direction is greater than the width of the fixed member of second, provides the space for the removal of angle bar, is favorable to the angle bar to remove to impel to realize the angular adjustment of processing main shaft.
Preferably, the outer circle of the main rotating shaft is matched with the corresponding inner hole on the angle adjusting plate for grinding; the excircle of the auxiliary rotating shaft is matched with a corresponding inner hole on the angle adjusting plate for grinding; the outer circle of the first adjusting rotating shaft is matched with a corresponding inner hole on the first fixed block for grinding; the excircle of the second adjusting rotating shaft is matched with a corresponding inner hole on the second fixed block for grinding.
In this scheme, the excircle through main pivot and the hole that corresponds on the angle adjustment board match and grind, the excircle of vice pivot and the hole that corresponds on the angle adjustment board match and grind, the excircle of first adjustment pivot and the hole that corresponds on the first fixed block match and grind and the excircle of second adjustment pivot and the hole that corresponds on the second fixed block match and grind, further promoted the stability of processing main shaft angle modulation, the degree of fit is high moreover, the angle adjustment is more accurate.
Preferably, the main rotating shaft, the first adjusting rotating shaft and the mounting holes of the first fixed rod piece arranged on the angle adjusting plate are groove-shaped in the direction of angle rotation; the installation holes of the second fixed rod piece arranged on the auxiliary rotating shaft, the second adjusting rotating shaft and the angle adjusting plate are groove-shaped in the direction of angle rotation.
In this scheme, the mounting hole through the first fixed member that sets up on main pivot, first adjustment pivot, the angle adjustment board is the cell type in the angle direction of rotation, can satisfy the rotatory required stroke space of angle, further promoted angle adjustment's flexibility and stability, be the cell type in the angle direction of rotation through the mounting hole of the second fixed member that sets up on auxiliary pivot, second adjustment pivot, the angle adjustment board, can satisfy the rotatory required stroke space of angle, further promoted angle adjustment's flexibility and stability.
Preferably, the return to zero plate is matched to the parallelism and flatness of the opposite end faces of the ramp.
In this scheme, through the parallelism and the flatness cooperation of the terminal surface that returns zero board and angle iron are relative, promoted the accuracy that the angle returns zero.
The technical scheme of the invention also provides a piston elliptical pin hole processing method, which comprises the following steps: according to the processing requirement information of the piston pin hole, determining the angle between the center line of the processing main shaft and the center line of the piston pin hole, and recording the angle as a preset angle; detecting whether the current angle between the center line of the processing main shaft and the center line of the piston pin hole is equal to a preset angle; when the current angle is detected to be not equal to the preset angle, loosening the first fixed rod piece, the second fixed rod piece and the second adjusting nut, screwing the first adjusting nut, and controlling the screw rod to push the inclined iron to advance along the top inclined surface of the base so as to enable the angle adjusting plate to rotate; when the current angle is detected to be equal to the preset angle, the first fixing block and the second fixing block are adjusted, and the first fixing rod piece, the second fixing rod piece, the first adjusting nut and the second adjusting nut are fixed.
In this scheme, through not hard up first dead lever, second adjusting nut, twist first adjusting nut, drive screw promotes the oblique iron and advances along the top inclined plane of base, with the angle adjustment board is rotatory to adjust the angle of processing main shaft's central line and piston pinhole central line, thereby realize the processing of the oval pinhole of piston, satisfy the processing demand of piston pinhole, need not to introduce new equipment, just can realize the oval pinhole processing of piston, the course of working is simple, machining efficiency has been improved, the quality and the dimensional accuracy of processing work piece have been promoted, thereby production efficiency has been promoted, and production cost is reduced.
Through above technical scheme, the cooperation sets up base, main pivot, angle adjustment board etc. through not hard up first dead lever, the dead lever of second, second adjusting nut, twist first adjusting nut, control screw promotes the oblique iron and advances along the top inclined plane of base, with the angle that makes the angle adjustment board rotatory central line that comes the adjustment processing main shaft and piston pinhole central line, the processing of the oval pinhole of piston has been realized, need not to introduce new equipment moreover, just can realize the oval pinhole processing of piston, the course of working is simple, machining efficiency has been improved, the quality and the dimensional accuracy of processing work piece have been promoted, thereby production efficiency has been promoted, and production cost is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 illustrates a schematic diagram of a piston elliptical pin bore machining apparatus in accordance with one embodiment of the present invention;
FIG. 2 illustrates a schematic left-hand view of a piston elliptical pin bore machining apparatus in accordance with one embodiment of the invention;
FIG. 3 illustrates a schematic diagram of a top view of a piston elliptical pin bore machining apparatus in accordance with one embodiment of the invention;
figure 4 shows a schematic structural view of a piston elliptical pin bore machining apparatus in a 2 degree rotated state according to one embodiment of the present invention,
wherein, the correspondence between the reference numerals and the components in fig. 1 to 4 is:
102 base, 104 main shaft, 106 angle adjusting plate, 108 return-to-zero plate, 110 chute, 112 screw, 114 auxiliary shaft, 116 first fixing rod, 118 second fixing rod, 120 first fixing block, 122 second fixing block, 124 first adjusting nut, 126 second adjusting nut, 128 first adjusting shaft, 130 second adjusting shaft, 132 fixing plate, 134 first screw, 136 second screw.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 4, a piston elliptical pin hole machining apparatus according to an embodiment of the present invention is applied to a piston pin hole machining device provided with a machining spindle, comprising: the piston elliptical pin hole machining device comprises: a base 102 and a main rotating shaft 104 which are arranged in a matching way; the angle adjusting plate 106 is covered on the base 102, the angle adjusting plate 106 is connected with the main rotating shaft 104, the angle adjusting plate 106 can move up and down around the main rotating shaft 104, the processing main shaft is placed on the top surface of the angle adjusting plate 106, and the direction of the central line of the processing main shaft is consistent with the movement adjusting direction of the angle adjusting plate 106; the return-to-zero plate 108 is fixedly connected to the side surface of the base 102, and an inner cavity space is formed between the return-to-zero plate 108 and the side surface of the base 102; the inclined iron 110 is arranged on the top inclined surface of the base 102, and the inclined iron 110 is positioned below the angle adjusting plate 106; a screw 112 connected to the ramp 110 for pushing the bottom incline of the ramp 110 to move along the top incline of the base 102; the auxiliary rotating shaft 114 is arranged between the angle adjusting plate 106 and the oblique iron 110, the auxiliary rotating shaft 114 and the main rotating shaft 104 are arranged at intervals, the auxiliary rotating shaft 114 and the main rotating shaft 104 are parallel to each other, and the angle adjusting plate 106 can move up and down around the auxiliary rotating shaft 114; the first fixing rod piece 116 sequentially passes through the angle adjusting plate 106 and the main rotating shaft 104 and is fixedly connected with the base 102; the second fixing rod 118 passes through the angle adjusting plate 106, the auxiliary rotating shaft 114 and the inclined iron 110 in sequence and is fixedly connected with the base 102; the first fixing block 120 is matched with the first fixing rod piece 116 and is used for fixing the first fixing rod piece 116; the second fixing block 122 is matched with the second fixing rod 118 and is used for fixing the second fixing rod 118; the adjusting nuts, namely a first adjusting nut 124 and a second adjusting nut 126, are sleeved on the screw 112, the first adjusting nut 124 is arranged in the inner cavity space of the return-to-zero plate 108, and the second adjusting nut 126 is arranged outside the return-to-zero plate 108.
In this embodiment, through the base 102 and the main rotating shaft 104 which are cooperatively arranged, the angle adjusting plate 106 can be supported, and the rotation of the angle adjusting plate 106 is realized, so that the angle adjustment of the center line of the processing spindle is facilitated, the processing spindle can be supported through the angle adjusting plate 106 covered on the base 102, and the processing spindle is driven to move, the angle adjusting plate 106 is connected with the main rotating shaft 104, the angle adjusting plate 106 can move up and down around the main rotating shaft 104, the angle of the angle adjusting plate 106 can be reset through the zero resetting plate 108 fixedly connected on the side surface of the base 102, the angle resetting accuracy is higher, the power is provided for the rotation of the angle adjusting plate 106 through the inclined iron 110 arranged on the top inclined surface of the base 102 and positioned below the angle adjusting plate 106, the bottom inclined surface of the inclined iron 110 can be pushed to move along the top inclined surface of the base 102 through the screw 112 connected with the inclined iron 110, thereby realizing the rotation of the angle adjusting plate 106, improving the stability of angle adjustment, guaranteeing the processing precision of the original equipment, being further beneficial to the up-and-down movement and rotation of the angle adjusting plate 106 through the auxiliary rotating shaft 114 arranged between the angle adjusting plate 106 and the oblique iron 110 and being further beneficial to the up-and-down movement and rotation of the angle adjusting plate 106, reducing the external force required by the up-and-down movement and rotation of the angle adjusting plate 106, improving the overall stability of the device, realizing the loosening and fixing of each part on the device through the first fixing rod piece 116, the second fixing rod 118, the first fixing block 120, the second fixing block 122 and a plurality of adjusting nuts, being beneficial to adjusting the angle of the processing main shaft at any time, realizing the processing of piston elliptical pin holes, being beneficial to stabilizing the whole device and guaranteeing the processing precision of the equipment, the piston elliptical pin hole machining device provided by the invention can be installed on the existing piston pin hole machining equipment, can realize piston elliptical pin hole machining without introducing new equipment, has a simple machining process, improves the machining efficiency, and improves the quality and the dimensional accuracy of machined workpieces, thereby improving the production efficiency and reducing the production cost.
Specifically, when the angle of the machining spindle needs to be adjusted, the first fixing rod 116, the second fixing rod 118 and the second adjusting nut 126 are loosened, the first adjusting nut 124 is screwed, the control screw 112 pushes the oblique iron 110 to advance along the top oblique surface of the base 102, the angle adjusting plate 106 rotates around the main rotating shaft 104 as a center of a circle, when the angle between the center line of the machining spindle and the center line of the piston pin hole is detected to reach a preset condition, the first fixing block 120 and the second fixing block 122 are adjusted, the first fixing rod 116, the second fixing rod 118, the first adjusting nut 124 and the second adjusting nut 126 are fixed, the adjustment of the machining spindle angle is completed, before the machining spindle angle is adjusted, the piston elliptical pin hole machining device is shown in fig. 1, and when the machining spindle angle is adjusted by 2 degrees, the piston elliptical pin hole machining device is shown in fig. 4.
The first fixing rod 116 is a fixing screw and/or a fixing bolt; the second fixing bar 118 is a fixing screw and/or a fixing bolt.
In this embodiment, the fixing screw and/or the fixing bolt are/is used as the first fixing rod 116 and the second fixing rod 118, so that the convenience of assembly is improved, and the processing cost is low.
As shown in fig. 1 to 4, the piston elliptical pin hole machining apparatus further includes: the first adjusting shaft 128 is disposed on top of the angle adjusting plate 106, the first adjusting shaft 128 is disposed parallel to the main shaft 104, and the first fixing rod 116 passes through the first adjusting shaft 128; the second adjusting shaft 130 is disposed on top of the angle adjusting plate 106, the second adjusting shaft 130 is disposed parallel to the auxiliary shaft 114, and the second fixing rod 118 passes through the second adjusting shaft 130.
In this embodiment, the up-and-down movement rotation flexibility of the angle adjustment plate 106 is further improved through the first adjustment rotating shaft 128 and the second adjustment rotating shaft 130, so that the adjustment stability is improved, and the processing efficiency is improved while the processing precision is ensured.
As shown in fig. 1 to 4, the piston elliptical pin hole machining apparatus further includes: the fixing plate 132 is fixedly connected to the side surfaces of the base 102 and the angle adjusting plate 106, and the side surface where the fixing plate 132 is located is perpendicular to the side surface where the screw 112 is located.
In this embodiment, the fixing plate 132 is fixedly connected to the fixing plate 132 disposed on the side surface of the base 102 and the angle adjusting plate 106, and the fixing plate 132 is fixed in the whole angle adjusting process, so that when the angle of the machining spindle is adjusted, the machining precision of the original equipment is kept unchanged, and when the machining of the piston elliptical pin hole is realized, the machining efficiency is improved, and meanwhile, the machining precision is guaranteed.
One end of the fixed plate 132 is fixedly connected with the angle adjusting plate 106 through a first screw 134 and/or a first bolt, and the other end of the fixed plate 132 is attached to the side surface of the base 102; the return-to-zero plate is fixedly connected to the base by a second screw 136 and/or a second bolt.
In this embodiment, one end of the fixing plate 132 is fixedly connected with the angle adjusting plate 106 through the first screw 134 and/or the first bolt, and the other end of the fixing plate 132 is attached to the side surface of the base 102, so that stability in the process of adjusting the angle of the machining spindle is further guaranteed, stability of the integral structure is guaranteed, and the return-to-zero plate is fixedly connected with the base through the second screw 136 and/or the second bolt, stability in the process of adjusting the angle of the machining spindle is further guaranteed, and stability of the integral structure is guaranteed.
The mounting hole of the second fixing bar 118 provided on the ramp 110 is a key groove, and the length of the key groove in the moving direction of the ramp 110 is greater than the width of the second fixing bar 118.
In this embodiment, the mounting hole of the second fixing rod 118 disposed on the chute 110 is a key slot, and the length of the key slot in the moving direction of the chute 110 is greater than the width of the second fixing rod 118, so that a space is provided for the movement of the chute 110, which is beneficial to the movement and pushing of the chute 110, thereby realizing the angle adjustment of the processing spindle.
The outer circle of the main rotating shaft 104 is matched with the corresponding inner hole on the angle adjusting plate 106 for grinding; the outer circle of the auxiliary rotating shaft 114 is matched with the corresponding inner hole on the angle adjusting plate 106 for grinding; the outer circle of the first adjusting rotating shaft 128 is matched with the corresponding inner hole on the first fixed block 120 for grinding; the outer circle of the second adjusting shaft 130 is matched with the corresponding inner hole on the second fixed block 122 for grinding.
In this embodiment, the stability of the angle adjustment of the processing spindle is further improved by matching the outer circle of the main spindle 104 with the corresponding inner hole on the angle adjustment plate 106, matching the outer circle of the auxiliary spindle 114 with the corresponding inner hole on the angle adjustment plate 106, matching the outer circle of the first adjustment spindle 128 with the corresponding inner hole on the first fixed block 120, and matching the outer circle of the second adjustment spindle 130 with the corresponding inner hole on the second fixed block 122, and the matching degree is high, and the angle adjustment is more accurate.
The main rotating shaft 104, the first adjusting rotating shaft 128 and the mounting holes of the first fixing rod piece 116 arranged on the angle adjusting plate 106 are groove-shaped in the angle rotating direction; the mounting holes of the second fixing lever 118 provided on the sub-rotation shaft 114, the second adjustment rotation shaft 130, and the angle adjustment plate 106 are groove-shaped in the angle rotation direction.
In this embodiment, the installation hole of the first fixing rod piece 116 disposed on the main rotating shaft 104, the first adjusting rotating shaft 128 and the angle adjusting plate 106 is in a groove shape in the angle rotating direction, so that the required travel space for angle rotation can be satisfied, the flexibility and stability of angle adjustment are further improved, the installation hole of the second fixing rod piece 118 disposed on the auxiliary rotating shaft 114, the second adjusting rotating shaft 130 and the angle adjusting plate 106 is in a groove shape in the angle rotating direction, the required travel space for angle rotation can be satisfied, and the flexibility and stability of angle adjustment are further improved.
The return to zero plate 108 mates with the parallelism and flatness of the opposite end face of the ramp 110.
In this embodiment, the accuracy of angle zeroing is improved by matching the parallelism and flatness of the opposite end surfaces of the zeroing plate 108 and the ramp 110.
The embodiment of the invention also provides a piston elliptical pin hole processing method, which comprises the following steps:
s1, determining an angle between a center line of a processing main shaft and a center line of a piston pin hole according to processing requirement information of the piston pin hole, and recording the angle as a preset angle;
s2, detecting whether the current angle between the center line of the processing main shaft and the center line of the piston pin hole is equal to a preset angle;
s3, when the current angle is detected to be not equal to the preset angle, loosening the first fixed rod piece, the second fixed rod piece and the second adjusting nut, screwing the first adjusting nut, and controlling the screw rod to push the oblique iron to advance along the top oblique surface of the base so as to enable the angle adjusting plate to rotate;
and S4, when the current angle is detected to be equal to the preset angle, the first fixed block and the second fixed block are adjusted, and the first fixed rod piece, the second fixed rod piece, the first adjusting nut and the second adjusting nut are fixed.
In this embodiment, through not hard up first dead lever, second adjusting nut, twist first adjusting nut, control screw promotes the oblique iron and advances along the top inclined plane of base, with make the angle adjustment board rotatory the angle of adjusting the central line of processing main shaft and piston pinhole central line, thereby realize the processing of the oval pinhole of piston, satisfy the processing demand of piston pinhole, need not to introduce new equipment, just can realize the oval pinhole processing of piston, the course of working is simple, machining efficiency has been improved, the quality and the dimensional accuracy of processing work piece have been promoted, thereby production efficiency has been promoted, and manufacturing cost has been reduced.
The technical scheme of the invention is explained in detail by combining the drawings, the invention provides a piston elliptical pin hole processing device and a piston elliptical pin hole processing method, a base, a main rotating shaft, an angle adjusting plate and the like are arranged in a matched mode, the first adjusting nut is screwed by loosening the first fixed rod piece, the second fixed rod piece and the second adjusting nut, the control screw rod pushes the oblique iron to advance along the top oblique surface of the base, so that the angle adjusting plate rotates to adjust the angle between the center line of a processing main shaft and the center line of the piston pin hole, the piston elliptical pin hole is processed, new equipment is not required to be introduced, the piston elliptical pin hole processing can be realized, the processing process is simple, the processing efficiency is improved, the quality and the dimensional precision of a processed workpiece are improved, the production efficiency is improved, and the production cost is reduced.
In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an oval pinhole processingequipment of piston, is applicable to piston pin hole processing equipment, piston pin hole processing equipment is equipped with processing main shaft, its characterized in that, oval pinhole processingequipment of piston includes:
the base and the main rotating shaft are matched;
the angle adjusting plate is covered on the base and connected with the main rotating shaft, the angle adjusting plate can move up and down around the main rotating shaft, the processing main shaft is arranged on the top surface of the angle adjusting plate, and the direction of the central line of the processing main shaft is consistent with the movement adjusting direction of the angle adjusting plate;
the zero return plate is fixedly connected to the side face of the base, and an inner cavity space is formed between the zero return plate and the side face of the base;
the oblique iron is arranged on the top oblique plane of the base and is positioned below the angle adjusting plate;
the screw rod is connected with the inclined iron and is used for pushing the bottom inclined surface of the inclined iron to move along the top inclined surface of the base;
the auxiliary rotating shaft is arranged between the angle adjusting plate and the oblique iron, the auxiliary rotating shaft and the main rotating shaft are arranged at intervals, the auxiliary rotating shaft is parallel to the main rotating shaft, and the angle adjusting plate can move up and down around the auxiliary rotating shaft;
the first fixed rod piece sequentially penetrates through the angle adjusting plate and the main rotating shaft and is fixedly connected with the base;
the second fixed rod piece sequentially penetrates through the angle adjusting plate, the auxiliary rotating shaft and the inclined iron and is fixedly connected with the base;
the first fixing block is matched with the first fixing rod piece and is used for fixing the first fixing rod piece;
the second fixing block is matched with the second fixing rod piece and is used for fixing the second fixing rod piece;
the adjusting nuts are respectively a first adjusting nut and a second adjusting nut which are sleeved on the screw rod, the first adjusting nut is arranged in the inner cavity space of the zeroing plate, the second adjusting nut is arranged at the outer side of the zeroing plate,
when the angle of the machining main shaft needs to be adjusted, the first fixing rod piece, the second fixing rod piece and the second adjusting nut are loosened, the first adjusting nut is screwed, the screw rod is controlled to push the oblique iron to advance along the top oblique surface of the base, the angle adjusting plate rotates by taking the main rotating shaft as a circle center, and when the fact that the angle between the center line of the machining main shaft and the center line of the piston pin hole reaches a preset condition is detected, the first fixing block and the second fixing block are adjusted, the first fixing rod piece, the second fixing rod piece, the first adjusting nut and the second adjusting nut are fixed, and the angle adjustment of the machining main shaft is completed.
2. The device for processing elliptical pin holes of a piston according to claim 1, wherein,
the first fixed rod piece is a fixed screw and/or a fixed bolt;
the second fixed rod piece is a fixed screw and/or a fixed bolt.
3. The piston elliptical pin bore machining apparatus of claim 2, further comprising:
the first adjusting rotating shaft is arranged at the top of the angle adjusting plate, the first adjusting rotating shaft is arranged in parallel with the main rotating shaft, and the first fixed rod piece passes through the first adjusting rotating shaft;
the second adjusting rotating shaft is arranged at the top of the angle adjusting plate, the second adjusting rotating shaft is arranged in parallel with the auxiliary rotating shaft, and the second fixing rod piece penetrates through the second adjusting rotating shaft.
4. The piston elliptical pin bore machining apparatus of claim 3, further comprising:
the fixing plate is fixedly connected to the side face of the base and the side face of the angle adjusting plate, and the side face of the fixing plate is perpendicular to the side face of the screw.
5. The device for processing elliptical pin holes of a piston according to claim 4, wherein,
one end of the fixed plate is fixedly connected with the angle adjusting plate through a first screw and/or a first bolt, and the other end of the fixed plate is attached to the side face of the base;
the zero return plate is fixedly connected with the base through a second screw and/or a second bolt.
6. The piston elliptical pin bore machining apparatus of claim 5, wherein,
the mounting hole of the second fixed rod piece arranged on the oblique iron is a key groove, and the length of the key groove in the moving direction of the oblique iron is greater than the width of the second fixed rod piece.
7. The device for processing elliptical pin holes of a piston according to claim 6, wherein,
the excircle of the main rotating shaft is matched with a corresponding inner hole on the angle adjusting plate for grinding;
the excircle of the auxiliary rotating shaft is matched with a corresponding inner hole on the angle adjusting plate for grinding;
the outer circle of the first adjusting rotating shaft is matched with a corresponding inner hole on the first fixed block for grinding;
and the outer circle of the second adjusting rotating shaft is matched with the corresponding inner hole on the second fixed block for grinding.
8. The device for processing elliptical pin holes of a piston according to claim 7, wherein,
the main rotating shaft, the first adjusting rotating shaft and the mounting holes of the first fixed rod piece arranged on the angle adjusting plate are groove-shaped in the direction of angle rotation;
the auxiliary rotating shaft, the second adjusting rotating shaft and the mounting holes of the second fixing rod piece arranged on the angle adjusting plate are groove-shaped in the direction of angle rotation.
9. The piston elliptical pin bore machining apparatus of claim 8, wherein,
the zero return plate is matched with the parallelism and flatness of the opposite end surfaces of the inclined iron.
10. A piston elliptical pin bore machining method employing the piston elliptical pin bore machining apparatus of any one of claims 1 to 9, comprising:
according to the processing requirement information of the piston pin hole, determining an angle between the center line of the processing main shaft and the center line of the piston pin hole, and recording the angle as a preset angle;
detecting whether the current angle between the center line of the processing main shaft and the center line of the piston pin hole is equal to a preset angle or not;
when the current angle is detected to be not equal to the preset angle, loosening the first fixed rod piece, the second fixed rod piece and the second adjusting nut, screwing the first adjusting nut, and controlling the screw rod to push the oblique iron to advance along the top oblique surface of the base so as to enable the angle adjusting plate to rotate;
when the current angle is detected to be equal to the preset angle, a first fixing block and a second fixing block are adjusted to fix the first fixing rod piece, the second fixing rod piece, the first adjusting nut and the second adjusting nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810630832.XA CN108555709B (en) | 2018-06-19 | 2018-06-19 | Piston elliptical pin hole machining device and method |
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| CN201810630832.XA CN108555709B (en) | 2018-06-19 | 2018-06-19 | Piston elliptical pin hole machining device and method |
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| CN109226488A (en) * | 2018-11-15 | 2019-01-18 | 无锡海特精密模具有限公司 | A kind of High-precision angle adjuster |
| CN109202529A (en) * | 2018-11-15 | 2019-01-15 | 无锡海特精密模具有限公司 | A kind of angle demodulator |
| CN109304646A (en) * | 2018-11-15 | 2019-02-05 | 无锡海特精密模具有限公司 | A kind of circular cutter gear grinding machines |
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| DE9211772U1 (en) * | 1992-09-02 | 1994-01-13 | Witte Horst Entwicklung | Additional device for machine tools |
| CN2491163Y (en) * | 2001-08-29 | 2002-05-15 | 山东滨州渤海活塞股份有限公司 | Precision borer for shaped hole |
| KR100730783B1 (en) * | 2006-08-29 | 2007-06-20 | 동양피스톤 주식회사 | Finishing machine for pinhole of piston |
| CN101254553A (en) * | 2007-12-29 | 2008-09-03 | 兰州理工大学 | Barrel borehole machine |
| CN201201150Y (en) * | 2008-06-06 | 2009-03-04 | 山东滨州渤海活塞股份有限公司 | Special-shaped hole combined borer |
| CN201300225Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | Taper-hole boring machine processing suit |
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| GB2531481B (en) * | 2013-07-30 | 2017-04-12 | Honda Motor Co Ltd | Round hole machining method and round-hole machining device |
| CN106141247A (en) * | 2015-04-13 | 2016-11-23 | 东风活塞轴瓦有限公司 | Steel pistons noncircular pin hole special processing equipment |
| CN204640550U (en) * | 2015-05-06 | 2015-09-16 | 济南金曰公路工程有限公司 | Water drilling puncher constructing device |
| CN206632699U (en) * | 2017-03-27 | 2017-11-14 | 无锡市创源科技有限公司 | A kind of inclined hole fixing tool |
| CN208496561U (en) * | 2018-06-19 | 2019-02-15 | 滨州渤海活塞有限公司 | Piston ellipsoid pin hole processing unit (plant) |
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