CN111300215A - Method for improving precision of precision die-casting die product - Google Patents

Method for improving precision of precision die-casting die product Download PDF

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Publication number
CN111300215A
CN111300215A CN202010191286.1A CN202010191286A CN111300215A CN 111300215 A CN111300215 A CN 111300215A CN 202010191286 A CN202010191286 A CN 202010191286A CN 111300215 A CN111300215 A CN 111300215A
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China
Prior art keywords
die
cavity
oil
top end
casting die
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CN202010191286.1A
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CN111300215B (en
Inventor
丁建丽
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Taicang Wanlida precision mould Co., Ltd
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丁建丽
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Priority to CN202010191286.1A priority Critical patent/CN111300215B/en
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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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/20—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding dies
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention discloses a method for improving precision of a precision die-casting die product, which relates to the technical field of die processing and is completed by matching a precision die-casting piece surface detection polishing device, wherein the precision die-casting piece surface detection polishing device comprises a base fixed on the ground, a supporting plate vertically fixed at the top end of the base is arranged at the top end of the base, a three-jaw chuck is arranged on the right side wall of the supporting plate, a die-casting die is clamped and fixed through the three-jaw chuck, a rack vertically arranged at the top end of the base is arranged at the top end of the base and positioned at the right side of the supporting plate, a plurality of oil coating pens are distributed at equal intervals on the outer circumferential surface of a detection disc, so that when the detection disc rotates at a constant speed on the inner wall of a die cavity, the inner wall of the die cavity is repeatedly coated with oil through the plurality of oil coating pens, and when one oil coating pen is not supplied with oil, the other oil, the detection accuracy is improved.

Description

Method for improving precision of precision die-casting die product
Technical Field
The invention relates to the technical field of die machining, in particular to a method for improving precision of a precision die-casting die product.
Background
The die-casting die is a tool for casting metal parts, and is a tool for completing a die-casting process on a special die-casting die forging machine. The basic process of die casting comprises the following steps: molten metal is cast at low speed or high speed and filled into the cavity of the mold, the mold has movable cavity surface, and it is pressurized and forged along with the cooling process of the molten metal, so that the shrinkage cavity and shrinkage porosity defects of the blank are eliminated, and the internal structure of the blank reaches the broken crystal grains in the forged state. The comprehensive mechanical property of the blank is obviously improved.
The existing method for detecting the inner wall of the cavity of the die-casting die mainly detects the inner wall of the cavity of the die-casting die through a sealing method, namely fluid is injected into the cavity of the die-casting die to observe whether the fluid leaks from the cavity of the die-casting die so as to judge whether the inner wall of the cavity of the die-casting die reaches the standard, and although the detection method can judge the sealing of the die-casting die, the following technical problems still exist in the actual use:
when the sealing requirement is met in the cavity of the die-casting die, the inner wall of the cavity of the die-casting die still has a convex or concave structure, and the convex or concave structure easily influences the installation and matching precision of the die-casting die in actual use.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a method for improving the precision of a precision die-casting die product, which solves the technical problem that the surface precision of the inner wall of a cavity of the die-casting die is easily influenced by a convex or concave structure which still exists on the inner wall of the cavity while the requirement of sealing is met in the existing die-casting die.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a method for improving precision of precision die-casting die products is completed by matching a precision die-casting surface detection polishing device, wherein the precision die-casting surface detection polishing device comprises a base fixed on the ground, a supporting plate vertically fixed at the top end of the base is arranged at the top end of the base, a three-jaw chuck is mounted on the right side wall of the supporting plate, and the die-casting die is clamped and fixed through the three-jaw chuck;
the top end of the base and the right side of the supporting plate are provided with a rack which is erected at the top end of the base, the bottom end of the rack is provided with a sliding block, the top end of the base is provided with a base, the top end of the base is provided with a sliding groove which is in sliding fit with the sliding block, the sliding groove is vertical to the supporting plate which is erected and fixed at the top end of the base, the sliding block is embedded in the sliding groove in a sliding fit mode, the left side of the base is provided with a linear push rod motor, a push rod extends rightwards from the linear push rod motor;
the top end of the rack is provided with a bearing hole, the bottom of the bearing hole of the rack is provided with a motor groove, a shaft lever is arranged in the bearing hole at the top end of the rack through a rolling bearing, the bottom end of the shaft lever extends into the motor groove, a motor is arranged in the motor groove, and the motor is fixedly connected with the bottom end of the shaft lever through a coupler;
the top end of the shaft lever is provided with a shaft barrel with a cylindrical structure, the axis of the shaft barrel is coaxial with the axis of the three-jaw chuck, the opening part of the shaft barrel is provided with a through shaft hole, a transmission shaft is arranged in the shaft hole of the shaft barrel through a bearing, the outer wall of the shaft barrel is provided with a second motor, the top end of an output shaft of the second motor and the middle part of the transmission shaft are both provided with belt wheels, and the two belt wheels are in transmission connection through a V belt; two ends of the transmission shaft extend out of two ends of the shaft barrel, one end of the transmission shaft is provided with a detection disc, and the other end of the transmission shaft is provided with a polishing disc;
the detection disc comprises an adjusting knob arranged at the right end of the detection disc, the detection disc is of a disc structure, a transmission bin of a round cavity structure is arranged inside the detection disc, an oil storage cylinder is arranged at the circle center position of the transmission bin, an oil storage cavity is arranged inside the oil storage cylinder, the right end of the oil storage cylinder penetrates through the detection disc and extends out, the adjusting knob is arranged at the right end of the oil storage cylinder extending out of the right side of the detection disc, an oil injection cavity communicated with the oil storage cavity is formed in the circle center position of the adjusting knob, and the oil injection cavity in the circle center position of the adjusting knob is sealed through a sealing plug;
the outer circular surface of the detection disc is provided with a plurality of guide holes which are distributed at equal intervals, each guide hole is communicated with a transmission bin inside the detection disc, an oil painting pen is installed in each guide hole in a sliding fit mode, one end of each oil painting pen extends into the transmission bin, the end of each oil painting pen extending into the transmission bin is hinged with a first connecting rod, and the other end of each first connecting rod is hinged to the outer wall of the oil storage cylinder;
the top end of each oiling pen extending into the transmission bin is communicated with an oil storage cavity in the oil storage cylinder through an oil pipeline, the other end of each oiling pen extends out of the outer circular surface of the detection disc, and a roller is mounted at the top end of each oiling pen extending out of the outer circular surface of the detection disc;
the method specifically comprises the following steps of improving the product precision of the precision die-casting die:
s1, workpiece installation: the die cavity of the die-casting die faces the right side, so that the left side of the die-casting die is arranged on the three-jaw chuck of the supporting plate and is clamped and fixed through the three-jaw chuck;
s2, workpiece detection: detecting the die-casting die clamped and fixed in the step S1, extending the detection disc into a cavity of the die-casting die, enabling the top end of the oiling pen on the outer circle surface of the detection disc to be in contact with the inner wall of the cavity of the die-casting die, driving the detection disc to rotate through the second motor, pushing the detection disc to horizontally move in the cavity of the die-casting die through the linear push rod motor, enabling the oiling pen to uniformly coat colors on the inner wall of the cavity of the die-casting die, and judging whether the inner wall of the cavity of the die-casting die is sunken or not by observing whether the colors of the colored inner wall of the cavity of the die-casting die;
s3, workpiece screening: separately storing the die-casting die with the uneven color of the inner wall of the middle cavity in the step S2;
s4, workpiece repairing: repairing the die-casting die separately stored in the step S3, so that when the die-casting die with uneven color is detected again, the inner wall of the cavity of the die-casting die is uniformly painted;
s5, repeated detection: and (4) repeating the step S2, carrying out color painting detection again on the repaired die-casting die in the step S4, repeating the steps S3 to S4 if the repaired die-casting die is not qualified, carrying out repair detection again on the inner wall of the cavity of the die-casting die, repeating the step S2 again, and circularly repeating the steps until the color painting is uniform finally, so that the product precision of the die-casting die can be improved.
According to a preferable technical scheme, the outer wall of the oil storage cylinder is provided with gear teeth which are distributed at equal intervals, a limiting base is arranged on the gear teeth close to the outer wall of the oil storage cylinder, a spring hole is formed in the side wall of the limiting base facing the direction of the gear teeth, a limiting block is embedded into the spring hole in the side wall of the limiting base, and a limiting spring is arranged at the bottom of the limiting block embedded into the spring hole.
As a preferred technical scheme of the invention, the oil coating pen comprises a spring stop block, a second spring, a roller base, a roller, a rubber sleeve, an oil filter screen, an oil inlet hole and an oil guide cavity, the oil coating pen is of a cylindrical structure, an oil guide cavity is arranged inside the oil coating pen, an oil conveying pipe is communicated with the oil guide cavity inside the oil coating pen, the spring stop block is arranged inside the oil guide cavity, a square hole penetrating through the oil guide cavity is formed in the top end of the oil coating pen extending out of the outer circular surface of the detection disc, a square block-shaped roller base is installed in a circular hole in the top end of the roller base, a semi-arc-shaped groove is formed in the top end surface of the roller base, the roller is embedded into the groove in the top end surface of the roller base in a sliding fit manner, a sponge groove is formed in the bottom surface of the top end surface of the roller base, an oil inlet hole communicated with the oil guide cavity is formed in the side, the oil inlet holes are distributed on the side wall of the sponge groove at equal intervals;
the roller base is embedded into a square hole in the top end of the oiling pen in a sliding fit mode, the other end of the roller base extends into the oil guide cavity, and the top end of the roller base extending into the oil guide cavity is provided with a second spring.
As a preferable technical scheme of the invention, an oil filter screen is arranged in the sponge groove.
In a preferred embodiment of the present invention, the outer wall of the roller is wrapped with a rubber sleeve having a cylindrical structure.
In a preferred embodiment of the present invention, the axis of the roller is parallel to the axis of the die casting mold.
Compared with the prior art, the invention at least comprises the following beneficial effects:
firstly, the invention installs a frame standing on the top end of the base and positioned on the right side of the supporting plate, the top end of the frame is provided with a shaft cylinder in a cylindrical structure, the shaft cylinder is coaxial with a cavity of a die-casting die, the top end of the shaft cylinder is provided with a detection disc, the other end of the shaft cylinder is provided with a polishing disc, the detection disc and the polishing disc are driven by a second motor to rotate at the two ends of the shaft cylinder, the detection disc is stretched into the cavity of the die-casting die, the concave-convex detection is carried out on the inner wall of the cavity of the die-casting die, the polishing disc is stretched into the cavity of the die-casting die, polishing and grinding the inner wall of a die cavity of the die-casting die, arranging a sliding block at the bottom end of the rack, and pushing the sliding block to horizontally move at a constant speed in the sliding groove by a linear push rod motor to enable a polishing disc or a detection disc stretching into the die cavity of the die-casting die to horizontally move at a constant speed so as to enable the polishing disc or the detection disc to operate at a constant speed in the die cavity of the die-casting die.
Secondly, the invention is characterized in that the detection disc comprises an adjusting knob arranged at the right end of the detection disc, a user can conveniently rotate the adjusting knob to drive the oiling pens to stretch out and draw back on the outer circular surface of the detection disc, so that the detection disc can be adjusted according to the inner diameter of the cavity of the die-casting die, the circle center position of the adjusting knob is provided with an oiling cavity communicated with the oil storage cavity, ink can be conveniently injected into the oil storage cavity of the oil storage cylinder through the oiling cavity, an oil port of the oiling cavity is sealed through a sealing plug, the ink in the oil storage cavity is supplied to the oiling pens through an oil conveying pipe, so that a plurality of oiling pens distributed on the outer wall of the detection disc at equal intervals can continuously supply oil, the ink in the oil storage cavity is driven to rotate by a second motor, the ink is rotated by centrifugal force in the oil storage cavity, so that the ink is uniformly dispersed to the inner wall of the oil, the ink uniformly dispersed by the centrifugal force enters each oil delivery pipe connected in the oil storage cavity, so that the oil can be uniformly supplied to the oiling pen.
And the outer circle surface of the detection disc is provided with a plurality of equidistantly distributed oil coating pens, so that when the detection disc rotates at the same speed on the inner wall of the cavity, the inner wall of the cavity is repeatedly coated with oil by the plurality of oil coating pens, the situation that when one oil coating pen is insufficient in oil supply, other oil coating pens supplement a painted area for the oil coating pen insufficient in oil supply is avoided, and the detection accuracy is improved.
Fourthly, a spring stop block is arranged in an oil guide cavity of the oiling pen, the spring stop block pushes a roller base to extend outwards through a second spring, a detection plate extends into a cavity of a die-casting die, a roller at the top end of the oiling pen is in contact with the inner wall of the cavity of the die-casting die, the inner wall of the cavity of the die-casting die generates a driving force on the roller base, the roller base moves into the oil guide cavity, an oil inlet hole in the roller base extends into the oil guide cavity, oil enters a sponge groove from the oil inlet hole to coat the outer wall of the roller, the roller rotates in the cavity of the die-casting die through the detection plate, the roller rolls along the inner wall of the cavity of the die-casting die and meets the sunken part of the inner wall of the cavity, the second spring pushes the roller base to extend towards the top end of the oiling pen, the oil inlet hole enters a round hole at the top end of the oiling pen, an oil circuit is disconnected, the detection of the sunken part of the inner wall of the die-casting die cavity is achieved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the method of the present invention for improving the precision of precision die casting mold products;
FIG. 2 is a front view of the precision die casting surface detection grinding device of the invention;
FIG. 3 is a left side cross-sectional view of a test tray according to the present invention;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 3 in the direction B;
FIG. 5 is a schematic cross-sectional view of the oil-applying pen of the present invention;
FIG. 6 is a schematic diagram of the structure of the job object of the present invention;
in the figure: 1. a base, 2, support plates 2, 3, a three-jaw chuck, 4, a support rib plate, 5, a base, 6, a sliding groove, 7, a sliding block, 8, a linear push rod motor, 9, a push rod, 10, a frame, 11, a motor groove, 12, a motor, 13, a coupler, 14, a rolling bearing, 15, a shaft lever, 16, a shaft barrel, 17, a transmission shaft, 18, a second motor, 19, a belt wheel, 20, a detection disc, 2001, an adjusting knob, 2002, an oiling cavity, 2003, a sealing plug, 2004, an oiling pen, 2005, a transmission cabin, 2006, an oil storage barrel, 2007, an oil storage cavity, 2008, a guide hole, 2009, a first connecting rod, 2010, an oil conveying pipe, 2011, a spring stopper, 2012, a second spring, 2013, a roller base, 2014, a roller, 2015, a rubber sleeve, 2016, an oil filter screen, 2017, an oil inlet hole, 2018, an oil guide cavity, 2019, a gear tooth, a limit base, a limit block, 2021, a limit spring, 21. a grinding disc.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.
Please refer to fig. 1-6, which are schematic overall structure diagrams of a method for improving precision of precision die casting mold products;
a method for improving precision of a precision die-casting die product is completed by matching a detection polishing device, wherein the detection polishing device comprises a base 1 fixed on the ground, a supporting plate 22 vertically fixed at the top end of the base 1 is arranged at the top end of the base 1, the supporting plate 22 is a square plate, a supporting rib plate 4 is arranged on the left side of the supporting plate 22 for supporting, a three-jaw chuck 3 is arranged on the right side wall of the supporting plate 22, and the die-casting die is clamped and fixed through the three-jaw chuck 3;
a rack 10 which is erected at the top end of the base 1 is arranged at the top end of the base 1 and positioned on the right side of the supporting plate 22, a sliding block 7 is arranged at the bottom end of the rack 10, a base 5 is arranged at the top end of the base 1, a sliding groove 6 which is in sliding fit with the sliding block 7 is formed in the top end of the base 5, the sliding groove 6 is perpendicular to the supporting plate 22 which is erected and fixed at the top end of the base 1, the sliding block 7 is embedded in the sliding groove 6 in a sliding fit mode, a linear push rod motor 8 is arranged at the left side of the base 5, a push rod 9 extends;
the top end of the frame 10 is provided with a bearing hole, the bottom of the bearing hole of the frame 10 is provided with a motor groove 11, a shaft lever 15 is arranged in the bearing hole at the top end of the frame 10 through a rolling bearing 14, the bottom end of the shaft lever 15 extends into the motor groove 11, a motor 12 is arranged in the motor groove 11, and the motor 12 is fixedly connected with the bottom end of the shaft lever 15 through a coupler 13;
the top end of the shaft rod 15 is provided with a shaft barrel 16 with a cylindrical structure, the axis of the shaft barrel 16 is coaxial with the axis of the three-jaw chuck 3, the opening part of the shaft barrel 16 is provided with a through shaft hole, a transmission shaft 17 is arranged in the shaft hole of the shaft barrel 16 through a bearing, the outer wall of the shaft barrel 16 is provided with a second motor 18, the top end of an output shaft of the second motor 18 and the middle part of the transmission shaft 17 are both provided with belt wheels 19, and the two belt wheels 19 are in transmission connection through a V-belt; an opening penetrating through an axle hole in the axle cylinder 16 is formed in the outer wall of the axle cylinder 16 and positioned on the belt wheel 19, and the V-shaped belt penetrates through the opening to be in transmission connection with the belt wheel 19 on the transmission shaft 17 in the axle hole; two ends of the transmission shaft 17 extend out of two ends of the shaft barrel 16, one end of the transmission shaft 17 is provided with a detection disc 20, and the other end of the transmission shaft 17 is provided with a polishing disc 21;
the detection disc 20 comprises an adjusting knob 2001 installed at the right end of the detection disc 20, the detection disc 20 is of a disc structure, a transmission bin 2005 with a circular cavity structure is arranged inside the detection disc 20, an oil storage cylinder 2006 capable of axially rotating is installed at the circle center position of the transmission bin 2005, an oil storage cavity 2007 is arranged inside the oil storage cylinder 2006, two ends of the oil storage cylinder 2006 are fixed at the circle center position of the transmission bin 2005 through a shaft rod, the shaft rod at the right end of the oil storage cylinder 2006 penetrates through the detection disc 20 to extend out, the adjusting knob 2001 is installed at the right end of the oil storage cylinder 2006 extending out of the right side of the detection disc 20, an oil injection cavity 2002 communicated with the oil storage cavity 2007 is formed in the circle center position of the adjusting knob 2001, and the oil;
the outer circular surface of the detection disc 20 is provided with a plurality of guide holes 2008 distributed at equal intervals, each guide hole 2008 is communicated with the transmission bin 2005 in the detection disc 20, an oiling pen 2004 capable of axially sliding is installed in each guide hole 2008 in a sliding fit mode, one end of the oiling pen 2004 extends into the transmission bin 2005, the end of the oiling pen 2005 extending into the transmission bin 2005 is hinged with a first connecting rod 2009, and the other end of the first connecting rod 2009 is hinged to the outer wall of the oil storage cylinder 2006;
the top end of each oiling pen 2004 extending into the transmission bin 2005 is communicated with an oil storage cavity 2007 in an oil storage cylinder 2006 through an oil conveying pipe 2010, the other end of each oiling pen 2004 extends out of the outer circular surface of the detection plate 20, and the top end of each oiling pen 2004 extending out of the outer circular surface of the detection plate 20 is provided with a roller 2014;
wherein, the invention installs a frame 10 standing on the top of the base 1 and on the right side of the supporting plate 2, the top of the frame 10 installs a cylindrical shaft 16, the shaft 16 is coaxial with the die cavity of the die casting die, the top of the shaft 16 installs a detecting disc 20, the other end of the shaft 16 installs a polishing disc 21, the second motor 18 drives the detecting disc 20 and the polishing disc 21 to rotate on the two ends of the shaft 16, the detecting disc 20 extends into the die cavity of the die casting die to detect the concave-convex of the die cavity inner wall of the die casting die, the polishing disc 21 extends into the die cavity of the die casting die to polish the die cavity inner wall of the die casting die, the slide block 7 is arranged on the bottom of the frame 10, the linear push rod motor 8 pushes the slide block 7 to move horizontally in the chute 6, so that the polishing disc 21 or the detecting disc 20 extending into the die cavity of the die casting die horizontally moves at a constant speed, so that the polishing disc 21 or the detection disc 20 can perform uniform speed operation in the cavity of the die-casting die.
The method specifically comprises the following steps:
s1, workpiece installation: the die cavity of the die-casting die faces to the right side, so that the left side of the die-casting die is arranged on the three-jaw chuck 3 of the supporting plate 22 and is clamped and fixed through the three-jaw chuck 3;
s2, workpiece detection: detecting the die-casting die clamped and fixed in the step S1, extending the detection disc 20 into a cavity of the die-casting die, enabling the top end of the oiling pen 2004 on the outer circular surface of the detection disc 20 to be in contact with the inner wall of the cavity of the die-casting die, driving the detection disc 20 to rotate through the second motor 18, pushing the detection disc 20 to horizontally move in the cavity of the die-casting die by the linear push rod motor 8, enabling the oiling pen 2004 to uniformly color on the inner wall of the cavity of the die-casting die, and judging whether the inner wall of the cavity of the die-casting die is sunken or not by observing whether the color of the colored inner wall of the cavity of the die-casting die;
s3, workpiece screening: separately storing the die-casting die with the uneven color of the inner wall of the middle cavity in the step S2;
s4, workpiece repairing: repairing the die-casting die separately stored in the step S3, so that when the die-casting die with uneven color is detected again, the inner wall of the cavity of the die-casting die is uniformly painted; for the detected concave surface of the inner wall of the cavity of the die-casting die, metal is filled in the concave part or the die-casting die is subjected to furnace separation and recasting to achieve the repairing result, and for the convex structure of the inner wall of the cavity of the die-casting die, the inner wall of the cavity of the die-casting die is polished by the precise die-casting piece surface detection polishing device provided by the invention to achieve the repairing result
And S5, repeating detection, repeating the step S2, performing secondary color painting detection on the repaired die-casting die in the step S4, repeating the steps S3-S4 if the repaired die-casting die is not qualified, performing secondary color painting detection on the inner wall of the cavity of the die-casting die, repeating the step S2 again, and circulating and repeating until the final color painting is uniform, so that the product precision of the die-casting die can be improved.
The oiling pen 2004 comprises a spring stopper 2011, a second spring 2012, a roller base 2013, a roller 2014, a rubber sleeve 2015, an oil filter screen 2016, an oil inlet 2017 and an oil guide cavity 2018, the oiling pen 2004 is of a cylindrical structure, the oil guide cavity 2018 is arranged inside the oiling pen 2004, an oil delivery pipe 2010 is communicated with the oil guide cavity 2018 inside the oiling pen 2004, a spring stopper 2011 is arranged inside the oil guide cavity 2018, the top end of the oiling pen 2004 extending out of the outer circular surface of the detection disc 20 is provided with a square hole penetrating through the oil guide cavity 2018, a square block-shaped roller base 2103 is arranged in a circular hole at the top end of the roller base 2103, the top end surface of the roller base 2103 is provided with a semi-arc-shaped groove, the roller 2014 is embedded in the groove at the top end surface of the roller base 2103 in a sliding fit manner, a sponge groove 2019 is arranged on the bottom surface of the groove at the top end of the roller base 2103, the side wall of the sponge groove 2019 is provided with an oil inlet 2017 communicated with the oil, the oil inlet holes 2017 are distributed on the side wall of the sponge groove 2019 at equal intervals;
the roller base 2103 is embedded into a square hole at the top end of the oiling pen 2004 in a sliding fit mode, the other end of the roller base 2103 extends into the oil guide cavity 2018, and a second spring 2012 is installed at the top end of the roller base 2103 extending into the oil guide cavity 2018.
The detection disc 20 comprises the adjusting knob 2003 installed at the right end of the detection disc 20, so that a user can conveniently rotate the adjusting knob 2003 to drive the oil painting pens 2004 to stretch out and draw back on the outer circular surface of the detection disc 20, the detection disc 20 can be adjusted according to the inner diameter of a cavity of a die-casting die, the circle center position of the adjusting knob 2003 is provided with the oil filling cavity 2002 communicated with the oil storage cavity 2007, the oil filling cavity 2002 is convenient for filling ink into the oil storage cavity 2007 of the oil storage cylinder 2006, then an oil port of the oil filling cavity 2002 is sealed through the sealing plug 2003, the ink in the oil storage cavity 2007 is supplied to the oil painting pens 2004 through the oil conveying pipe 2010, a plurality of oil painting pens 2004 equidistantly distributed on the outer wall of the detection disc 20 can be continuously supplied with the oil, the ink in the oil storage cavity 2007 drives the detection disc 20 to rotate through the second motor 18, the ink is rotated by centrifugal force in the oil storage cavity 2007, and the ink is, the oil delivery pipes 2010 are equidistantly distributed on the inner wall of the oil storage cavity 2007, so that the ink uniformly dispersed by centrifugal force enters each oil delivery pipe 2004 connected in the oil storage cavity 2007, and oil can be uniformly supplied to the oiling pens 2004.
According to the invention, the plurality of equally-distributed oiling pens 2004 are arranged on the outer circular surface of the detection disc 20, so that when the detection disc 20 rotates at a constant speed on the inner wall of the cavity, the inner wall of the cavity is repeatedly oiled by the plurality of oiling pens 2004, the situation that when one oiling pen 2004 supplies oil insufficiently, other oiling pens 2004 supplement the drawn area for the oiling pen 2004 which supplies oil insufficiently is avoided, and the detection accuracy is improved.
Wherein, the invention is provided with a spring stopper 2011 in an oil guide cavity 2018 of an oiling pen 2004, the spring stopper 2011 pushes a roller base 2013 to extend outwards through a second spring 2012, a detection plate 20 extends into a cavity of a die-casting die, a roller 2014 at the top end of the oiling pen 2004 is contacted with the inner wall of the cavity of the die-casting die, the inner wall of the cavity of the die-casting die generates a pushing force on the roller base 2033 to enable the roller base 2013 to move in the oil guide cavity 2018, an oil inlet 2007 of 2003 on the roller base extends into the oil guide cavity 2018, oil enters a sponge groove from the oil inlet 2017 to coat the outer wall of the roller 2014, the roller 2014 rolls along the inner wall of the cavity of the die-casting die through the rotation of the detection plate 20 in the cavity of the die-casting die, the roller 2014 meets the concave position of the inner wall of the cavity, the second spring 2012 pushes the roller base 2013 to extend towards the top end of the oiling pen 2004, and the oil inlet 2017, the oil circuit is disconnected, the surface of the roller 2014 is lack of oil, and the roller 2014 cannot be coated with oil at the sunken part of the inner wall of the cavity, so that the sunken part of the inner wall of the cavity of the die-casting die is detected.
An oil filter 2016 is installed in the sponge groove 2019, oil residues in the ink are filtered through the oil filter 2016, the ink can be conveniently and uniformly smeared on the surface of the roller 2014, and the roller 2014 can uniformly smear the ink on the surface of the inner wall of the cavity of the die-casting die.
The outer wall parcel of roller 2014 has the rubber sleeve 2015 of drum structure, avoids roller 2014 and die casting die's die cavity inner wall rigid contact, avoids roller 2014 at rolling in-process, produces the indentation to die casting die's die cavity inner wall.
The outer wall of oil storage section of thick bamboo 2006 is equipped with the teeth of a cogwheel 2019 of equidistance distribution, is close to and installs spacing base 2020 on the teeth of a cogwheel 2019 edge of oil storage section of thick bamboo 2006 outer wall, has seted up the spring hole towards the spacing base 202 lateral wall in the teeth of a cogwheel 219 direction, and spacing base 202 lateral wall has been seted up the downthehole embedding of spring and has been limited stopper 2022, and spacing spring 2021 is installed to the stopper 2022 bottom of embedding in the spring hole, and stopper 2022 is connected. The adjusting knob 2003 is self-locked after the extending length of the oiling pen 2004 is adjusted through the limiting block 2022, and the oiling pen 2004 can be self-locked when extending to any length by arranging the gear teeth 2019 which are distributed at equal intervals on the outer wall of the oil storage cylinder 2006. The axis of the roller 2014 is parallel to that of the die-casting die, so that the roller 2014 is stressed uniformly when the inner wall of the cavity of the die-casting die rolls, and the roller 2014 rolls stably in the cavity of the die-casting die.
The working principle is as follows: when the surface detection polishing device for the precision die casting provided by the invention is used, firstly, a cavity of a die casting die faces to the right side, the left side of the die casting die is arranged on a three-jaw chuck 3 of a supporting plate 22, and the die casting die is clamped and fixed through the three-jaw chuck 3; secondly, the slide block 7 is pushed by the linear push rod motor 8 to horizontally move in the sliding chute 6 at a constant speed, the shaft barrel 16 is driven by the motor 12 to rotate at the top end of the rack 10, the detection disc 20 rotates and faces to the direction of a cavity of the die-casting die, and the detection disc 20 extends into the cavity of the die-casting die to detect the inner wall of the cavity; then, the detection disc 20 withdraws from the cavity of the die-casting die, the motor 12 drives the shaft barrel 16 to rotate by an angle of 180 degrees, the polishing disc 21 faces the cavity of the die-casting die, and the polishing disc 21 extends into the cavity of the die-casting die to polish and polish the inner wall of the cavity, so that the surface treatment of the die-casting die is completed;
specifically, the working principle of the detection tray 20 is as follows:
all the oiling pens 2004 are driven to synchronously stretch out and draw back on the outer circle surface of the detection disc 20 through an adjusting knob 2003 at the right end of the detection disc 20, the detection disc 20 can be adjusted according to the size of the inner diameter of a cavity of a die-casting die, a plurality of oiling pens 2004 distributed at equal intervals are arranged on the outer circle surface of the detection disc 20, when the detection disc 20 rotates at the same speed on the inner wall of the cavity, the inner wall of the cavity is repeatedly oiled through the plurality of oiling pens 2004, the situation that when one oiling pen 2004 supplies oil insufficiently is avoided, other oiling pens 2004 supplement a drawn area for the oiling pen 2004 which supplies oil insufficiently, and detection accuracy is improved.
Secondly, an oil injection cavity 2002 communicated with the oil storage cavity 2007 is formed in the center of a circle of an adjusting knob 2003, ink can be conveniently injected into the oil storage cavity 2007 of an oil storage cylinder 2006 through the oil injection cavity 2002, an oil port of the oil injection cavity 2002 is sealed through a sealing plug 2003, the ink in the oil storage cavity 2007 is supplied to oil coating pens 2004 through oil pipes 2010, a plurality of oil coating pens 2004 equidistantly distributed on the outer wall of a detection plate 20 can continuously supply the oil, the ink in the oil storage cavity 2007 drives the detection plate 20 to rotate through a second motor 18, the ink rotates in the oil storage cavity 2007 under the action of centrifugal force, the ink is uniformly dispersed to the inner wall of the oil storage cavity 2007, the oil pipes 2010 are equidistantly distributed on the inner wall of the oil storage cavity 2007, the ink uniformly dispersed by the centrifugal force enters each oil pipe 2004 connected to the oil storage cavity 2007, and the oil can be uniformly supplied to the oil coating pens 2004.
Finally, the invention is provided with a spring stopper 2011 in an oil guide cavity 2018 of the oiling pen 2004, the spring stopper 2011 pushes the roller base 2013 to extend outwards through a second spring 2012, the roller 2014 at the top end of the oiling pen 2004 is contacted with the inner wall of the cavity of the die-casting die by extending the detection disc 20 into the cavity of the die-casting die, the inner wall of the cavity of the die-casting die generates a pushing force on the roller base 2033 to enable the roller base 2013 to move in the oil guide cavity 2018, an oil inlet 2007 of 2003 on the roller base extends into the oil guide cavity 2018, oil enters a sponge groove from the oil inlet 2017 to coat the outer wall of the roller 2014, the roller 2014 rolls along the inner wall of the cavity of the die-casting die by rotating the detection disc 20 in the cavity of the die-casting die, the roller 2014 meets the concave position of the inner wall of the cavity, the second spring 2012 pushes the roller base 2013 to extend towards the top end of the oiling pen 2004, and the oil inlet 2017 enters, the oil circuit is disconnected, the surface of the roller 2014 is lack of oil, and the roller 2014 cannot be coated with oil at the sunken part of the inner wall of the cavity, so that the sunken part of the inner wall of the cavity of the die-casting die is detected.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a method for improving accurate die casting die product precision, this method adopts the cooperation of accurate die casting surface detection grinding device to accomplish, and this accurate die casting surface detection grinding device is including the base that is fixed in ground, its characterized in that: the top end of the base is provided with a supporting plate which is vertically fixed at the top end of the base, the right side wall of the supporting plate is provided with a three-jaw chuck, and the die-casting die is clamped and fixed through the three-jaw chuck;
the top end of the base and the right side of the supporting plate are provided with a rack which is erected at the top end of the base, the bottom end of the rack is provided with a sliding block, the top end of the base is provided with a base, the top end of the base is provided with a sliding groove which is in sliding fit with the sliding block, the sliding groove is vertical to the supporting plate which is erected and fixed at the top end of the base, the sliding block is embedded in the sliding groove in a sliding fit mode, the left side of the base is provided with a linear push rod motor, a push rod extends rightwards from the linear push rod motor;
the top end of the rack is provided with a bearing hole, the bottom of the bearing hole of the rack is provided with a motor groove, a shaft lever is arranged in the bearing hole at the top end of the rack through a rolling bearing, the bottom end of the shaft lever extends into the motor groove, a motor is arranged in the motor groove, and the motor is fixedly connected with the bottom end of the shaft lever through a coupler;
the top end of the shaft lever is provided with a shaft barrel with a cylindrical structure, the axis of the shaft barrel is coaxial with the axis of the three-jaw chuck, the opening part of the shaft barrel is provided with a through shaft hole, a transmission shaft is arranged in the shaft hole of the shaft barrel through a bearing, the outer wall of the shaft barrel is provided with a second motor, the top end of an output shaft of the second motor and the middle part of the transmission shaft are both provided with belt wheels, and the two belt wheels are in transmission connection through a V belt; two ends of the transmission shaft extend out of two ends of the shaft barrel, one end of the transmission shaft is provided with a detection disc, and the other end of the transmission shaft is provided with a polishing disc;
the detection disc comprises an adjusting knob arranged at the right end of the detection disc, the detection disc is of a disc structure, a transmission bin of a round cavity structure is arranged inside the detection disc, an oil storage cylinder is arranged at the circle center position of the transmission bin, an oil storage cavity is arranged inside the oil storage cylinder, the right end of the oil storage cylinder penetrates through the detection disc and extends out, the adjusting knob is arranged at the right end of the oil storage cylinder extending out of the right side of the detection disc, an oil injection cavity communicated with the oil storage cavity is formed in the circle center position of the adjusting knob, and the oil injection cavity in the circle center position of the adjusting knob is sealed through a sealing plug;
the outer circular surface of the detection disc is provided with a plurality of guide holes which are distributed at equal intervals, each guide hole is communicated with a transmission bin inside the detection disc, an oil painting pen is installed in each guide hole in a sliding fit mode, one end of each oil painting pen extends into the transmission bin, the end of each oil painting pen extending into the transmission bin is hinged with a first connecting rod, and the other end of each first connecting rod is hinged to the outer wall of the oil storage cylinder;
the top end of each oiling pen extending into the transmission bin is communicated with an oil storage cavity in the oil storage cylinder through an oil pipeline, the other end of each oiling pen extends out of the outer circular surface of the detection disc, and a roller is mounted at the top end of each oiling pen extending out of the outer circular surface of the detection disc;
the method specifically comprises the following steps of improving the product precision of the precision die-casting die:
s1, workpiece installation: the die cavity of the die-casting die faces the right side, so that the left side of the die-casting die is arranged on the three-jaw chuck of the supporting plate and is clamped and fixed through the three-jaw chuck;
s2, workpiece detection: detecting the die-casting die clamped and fixed in the step S1, extending the detection disc into a cavity of the die-casting die, enabling the top end of the oiling pen on the outer circle surface of the detection disc to be in contact with the inner wall of the cavity of the die-casting die, driving the detection disc to rotate through the second motor, pushing the detection disc to horizontally move in the cavity of the die-casting die through the linear push rod motor, enabling the oiling pen to uniformly coat colors on the inner wall of the cavity of the die-casting die, and judging whether the inner wall of the cavity of the die-casting die is sunken or not by observing whether the colors of the colored inner wall of the cavity of the die-casting die;
s3, workpiece screening: separately storing the die-casting die with the uneven color of the inner wall of the middle cavity in the step S2;
s4, workpiece repairing: repairing the die-casting die separately stored in the step S3, so that when the die-casting die with uneven color is detected again, the inner wall of the cavity of the die-casting die is uniformly painted;
s5, repeated detection: and (4) repeating the step S2, carrying out color painting detection again on the repaired die-casting die in the step S4, repeating the steps S3 to S4 if the repaired die-casting die is not qualified, carrying out repair detection again on the inner wall of the cavity of the die-casting die, repeating the step S2 again, and circularly repeating the steps until the color painting is uniform finally, so that the product precision of the die-casting die can be improved.
2. The method for improving the precision of the precision die-casting die product as claimed in claim 1, wherein: the outer wall of an oil storage section of thick bamboo is equipped with the teeth of a cogwheel that the equidistance distributes, closes on in spacing base is installed to the teeth of a cogwheel edge of oil storage section of thick bamboo outer wall, towards in the teeth of a cogwheel direction the spring hole has been seted up to spacing base lateral wall, spacing base lateral wall has been seted up the downthehole embedding of spring and has been had the stopper, imbeds in the spring hole spacing spring is installed to the stopper bottom.
3. The method for improving the precision of the precision die-casting die product as claimed in claim 1, wherein: the oil coating pen comprises a spring stop block, a second spring, a roller base, a roller, a rubber sleeve, an oil filter screen, an oil inlet hole and an oil guide cavity, the oil coating pen is of a cylindrical structure, an oil guide cavity is arranged in the oiling pen, the oil delivery pipe is communicated with the oil guide cavity in the oiling pen, a spring stop block is arranged in the oil guide cavity, a square hole penetrating through the oil guide cavity is formed in the top end of the oiling pen extending out of the outer circular surface of the detection disc, a square block-shaped roller base is arranged in a circular hole at the top end of the roller base, a semi-arc-shaped groove is arranged on the top end surface of the roller base, the roller is embedded in the groove on the top end surface of the roller base in a sliding fit manner, the bottom surface of the groove at the top end surface of the roller base is provided with a sponge groove, the side wall of the sponge groove is provided with a plurality of oil inlet holes communicated with the oil guide cavity, and the oil inlet holes are equidistantly distributed on the side wall of the sponge groove;
the roller base is embedded into a square hole in the top end of the oiling pen in a sliding fit mode, the other end of the roller base extends into the oil guide cavity, and the top end of the roller base extending into the oil guide cavity is provided with a second spring.
4. The method for improving the precision of the precision die-casting die product as claimed in claim 2, wherein: an oil filter screen is arranged in the sponge groove.
5. The method for improving the precision of the precision die-casting die product as claimed in claim 2, wherein: the outer wall of the roller is wrapped with a rubber sleeve with a cylindrical structure.
6. A method of improving the accuracy of precision die casting mould products according to any one of claims 1 or 3, characterised in that: the axis of the roller is parallel to the axis of the die-casting die.
CN202010191286.1A 2020-03-18 2020-03-18 Method for improving precision of precision die-casting die product Active CN111300215B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113478391A (en) * 2021-07-04 2021-10-08 兴化市富翔不锈钢制品有限公司 Surface flatness detection device for flange processing
CN115921815A (en) * 2023-03-09 2023-04-07 宁波隆源股份有限公司 Die casting die life monitoring device

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Publication number Priority date Publication date Assignee Title
JP2001219351A (en) * 2000-02-07 2001-08-14 Allied Material Corp Die polishing machine
CN2637096Y (en) * 2003-08-08 2004-09-01 江苏省滚动体工程技术研究中心 Mould corrector
CN105881152A (en) * 2016-05-17 2016-08-24 常州市金呈宇五金有限公司 Machining and polishing device for die
KR20170075979A (en) * 2015-12-24 2017-07-04 나종훈 Method of grinding defects of billets
CN208289603U (en) * 2018-05-04 2018-12-28 苏州全顺精密模具有限公司 A kind of mold processing grinding device

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2001219351A (en) * 2000-02-07 2001-08-14 Allied Material Corp Die polishing machine
CN2637096Y (en) * 2003-08-08 2004-09-01 江苏省滚动体工程技术研究中心 Mould corrector
KR20170075979A (en) * 2015-12-24 2017-07-04 나종훈 Method of grinding defects of billets
CN105881152A (en) * 2016-05-17 2016-08-24 常州市金呈宇五金有限公司 Machining and polishing device for die
CN208289603U (en) * 2018-05-04 2018-12-28 苏州全顺精密模具有限公司 A kind of mold processing grinding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113478391A (en) * 2021-07-04 2021-10-08 兴化市富翔不锈钢制品有限公司 Surface flatness detection device for flange processing
CN115921815A (en) * 2023-03-09 2023-04-07 宁波隆源股份有限公司 Die casting die life monitoring device

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