CN218822012U - Multi-directional hole structure integrated detection tool for aluminum die-casting workpiece - Google Patents
Multi-directional hole structure integrated detection tool for aluminum die-casting workpiece Download PDFInfo
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- CN218822012U CN218822012U CN202223233454.2U CN202223233454U CN218822012U CN 218822012 U CN218822012 U CN 218822012U CN 202223233454 U CN202223233454 U CN 202223233454U CN 218822012 U CN218822012 U CN 218822012U
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- aluminum die
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- 238000001514 detection method Methods 0.000 title claims abstract description 131
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 51
- 238000004512 die casting Methods 0.000 title claims abstract description 35
- 239000004411 aluminium Substances 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 9
- 238000012797 qualification Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010073 coating (rubber) Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a multi-directional hole structure integrated checking fixture for aluminum die-casting workpieces, wherein the middle part of a base is a workpiece placing area; the first base and the second base are fixed on the outer side of the workpiece placing area; the first detection rod penetrates through the first base from top to bottom and extends to the workpiece placing area; the first detection rod is provided with a first return spring which drives the first detection rod to move upwards and be far away from the workpiece placing area; the second detection rod penetrates into the second base from outside to inside and extends to the workpiece placing area; the second detection rod is provided with a second return spring which drives the second detection rod to move outwards and away from the workpiece placing area; the detection rods are integrated, so that the detection tools can be accommodated conveniently, manual synchronous detection can be performed on a plurality of hole structures simultaneously, and the hole positions can be detected while the inner diameters of the holes are detected; due to the driving of the return spring, the interference between the detection rods is avoided, the step of pulling out the interference detection rods is reduced, and the detection convenience is improved.
Description
Technical Field
The utility model relates to an examine a device, especially relate to an utensil is examined to multi-direction hole structure integral type of aluminium die-casting work piece, have a plurality of hole structures of waiting to detect on the aluminium die-casting work piece, utilize integral type hole structure to examine a hole structure to a plurality of aluminium die-casting work pieces and carry out the compliance detection.
Background
The window regulator module is provided with an aluminum die-casting workpiece, and a plurality of shaft rods in different directions need to be installed on the aluminum die-casting workpiece, so that a plurality of hole structures in different directions are arranged on the aluminum die-casting workpiece. Before the manufacturer leaves a factory, the hole structure of the aluminum die casting workpiece needs to be subjected to compliance detection, and each hole structure is subjected to penetration detection by a detection tool for manually simulating a shaft lever in the early stage.
Due to the low manual efficiency, manufacturers wish to automate the modification of the inspection tools and search for relevant patent documents in the hope of being inspired by the prior art.
A detection tool for detecting the contour and the hole structure of a trunk door of a bridge car with the publication number of CN214537727U comprises a base plate, a profiling contour frame, an inclined support detection mechanism and a sliding detection mechanism; the substrate is provided with a support frame, the profiling outline frame is positioned on the support frame, the profiling outline frame is of an arc bending structure with a head-tail continuous shape, and the profiling outline frame is provided with a positioning pressing block; a central supporting seat is arranged on the substrate; the inclined support detection mechanism and the sliding detection mechanism are both positioned on the support frame, the inclined support detection mechanism is positioned between the central support seat and the sliding detection mechanism, and the sliding detection mechanism corresponds to the position of the side edge of the profile modeling frame.
The utility model provides a profile and through-hole of auto parts transmission release lever rubber coating that bulletin number is CN214333636U examines utensil, including the base, profile reference plate, the facade reference column, the cambered surface reference column and elastic locating pin and hole locating pin, profile reference plate, facade reference column, cambered surface reference column are fixed on the base to transmission release lever location arrangement that finishes according to the rubber coating, the cambered surface reference column hugs closely the cooperation with the location portion of transmission release lever, as the reference surface of location transmission release lever, and press the location portion opposite of transmission release lever by elastic locating pin, be used for pressing from both sides tight transmission release lever.
No. CN 209485199U's a bent pipe through-hole examines utensil, which comprises a seat plate, fixed connection components, lateral part determine module and middle part determine module, fixed connection components fixed mounting is in pairs on the bedplate, middle part determine module fixed mounting is at adjacent fixed connection components's intermediate position, fixed connection components includes solid piece and tip locating part, lateral part determine module fixed mounting is between solid piece and tip locating part, detect through lateral part determine module and middle part determine module both sides of bent pipe and the through-hole at middle part in unison, when improving detection efficiency, improve the precision that detects.
The various hole structure detection tools are too complex in mechanism and high in manufacturing cost, and cannot be applied to the compliance detection of aluminum die-cast workpieces with multi-directional hole structures required by the company.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the loaded down with trivial details nature of examining utensil detection and the inconvenient of examining utensil and accomodating to and the automatic complexity of examining utensil among the prior art, the utility model aims to solve the technical problem that a simple structure is provided, and the utensil is examined to the multi-direction hole structure integral type of the lower aluminium die-casting work piece of cost of manufacture, should examine a plurality of utensil integrations of examining, and sets up the structure that resets according to the detection orbit, avoids the interference that detects to can accomplish multi-direction hole structure fast conveniently and detect.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the multi-directional hole structure integrated detection tool for the aluminum die-casting workpiece comprises a base, a first base, a second base, a first detection rod and a second detection rod;
the middle part of the base is a workpiece placing area; the first base and the second base are fixed on the outer side of the workpiece placing area;
the first base is provided with a vertical guide hole, and the first detection rod penetrates through the vertical guide hole from top to bottom and extends to the workpiece placing area;
a first transverse guide hole is formed in the second base, and the second detection rod penetrates into the first transverse guide hole from outside to inside and extends to the workpiece placement area;
the first detection rod is provided with a first return spring, and the first return spring drives the first detection rod to move upwards to be far away from the workpiece placing area;
and a second return spring is arranged on the second detection rod and drives the second detection rod to move outwards to be far away from the workpiece placing area.
The utility model provides a further preferred technical scheme that above-mentioned technical problem adopted is: the moving tracks of the second detection rod and the first detection rod are crossed.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: the first detection rod is positioned on the first base, and a second transverse guide hole is formed in the first base;
the third detection rod penetrates into the second transverse guide hole from outside to inside and extends to the workpiece placing area;
the movable track of the third detection rod is intersected with the movable tracks of the first detection rod and the second detection rod.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: the fourth detection rod is positioned on the first base and is parallel to the third detection rod;
a third transverse guide hole is formed in the first base;
the fourth detection rod penetrates into the third transverse guide hole from outside to inside and extends to the workpiece placing area;
the moving track of the fourth detection rod is intersected with the moving track of the second detection rod.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: the base comprises a positioning component matched with the bottom surface of the aluminum die-casting workpiece.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: the positioning component comprises a positioning column and a plurality of positioning supporting blocks, wherein the positioning column is matched with the structure of the middle hole of the aluminum die-casting workpiece.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: the rear end of the first detection rod is provided with a first limiting part, the first return spring is sleeved on the first detection rod, and two ends of the first return spring are propped between the first limiting part and the first base;
the rear end of the second detection rod is provided with a second limiting part, the second return spring is sleeved on the second detection rod, and two ends of the second return spring are propped between the second limiting part and the second base.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: the base comprises four supporting legs and a platform, and the supporting legs are supported below the platform;
the workpiece placing area is located on the platform, and the first base and the second base are fixed on the platform.
The utility model provides a further preferred technical scheme who above-mentioned technical problem adopted is: and a plurality of auxiliary supporting columns for supporting the aluminum die-casting workpiece are arranged on the base.
The utility model provides a further preferred technical scheme that above-mentioned technical problem adopted is: the first detection rod is provided with a first annular bulge, the first annular bulge is used for limiting the upper side of the aluminum die-casting workpiece, the second detection rod is provided with a second annular bulge, and the second annular bulge is used for limiting the outer side of the aluminum die-casting workpiece.
Compared with the prior art, the utility model has the advantages that: because reset spring's drive, the testing personnel no matter promote earlier which testing rod to correspond to wait to detect the hole structure and carry out the qualification and detect, this testing rod all can withdraw from the work piece after the detection is finished and place the district, and avoid waiting to detect the interference that the qualification of the hole structure detected other to other testing rods, consequently need not carry out the detection of back one again after extracting the inserted testing rod by hand to the convenience that detects has been improved.
In addition, with a plurality of measuring sticks set together, be favorable to taking in of detection instrument, utilize once fixing a position in the inspection hole internal diameter qualification in addition, also carried out the qualification to the hole position and detected, more importantly does benefit to the setting that detects back automatic re-setting, has further improved the convenience that detects.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a first schematic diagram of an aluminum die-casting workpiece and a first inspection tool for an integral hole structure of the aluminum die-casting workpiece;
FIG. 2 is a second schematic diagram of an aluminum die-casting workpiece and an aluminum die-casting workpiece integral hole structure checking fixture;
FIG. 3 is a third schematic diagram of an aluminum die-casting workpiece and an aluminum die-casting workpiece integrated hole structure checking fixture;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is a schematic enlarged view of a portion of FIG. 3 at B;
FIG. 6 is a schematic diagram of an aluminum die-casting workpiece integral hole structure checking fixture.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined or explained in subsequent figures.
The aluminum die-cast workpiece 100 shown in fig. 1, 3, 4 has a plurality of hole configurations, specifically, a first hole configuration 1, a second hole configuration 2, a third hole configuration 3, a fourth hole configuration 4, and a fifth hole configuration 5, which extend in different directions, and detection trajectories between the respective hole configurations interfere with each other. The extension axis of the first bore configuration 1 and the extension axis of the second bore configuration 2 intersect. The extension axis of the first bore configuration 1 and the extension axis of the third bore configuration 3 coincide. Aiming at the hole structure of the detection track in coherent winding, the embodiment provides the simple multi-directional hole structure integrated detection tool for the aluminum die-casting workpiece, which can be used for rapidly detecting the qualification of the hole structure aperture.
As shown in fig. 1-3 and 6, the checking fixture 200 for the integral hole structure of the aluminum die-cast workpiece comprises a base 10, a first base 20, a second base 30, a first detection rod 50 and a second detection rod 60; the middle part of the base 10 is a workpiece placing area; the base 10 includes a positioning assembly adapted to a bottom surface of an aluminum die-cast workpiece, and the workpiece is positioned in the workpiece placing area by the positioning assembly.
The first base 20 and the second base 30 are fixed outside the workpiece placing area; a vertical guide hole is formed in the first base 20, and the first detection rod 50 penetrates through the vertical guide hole from top to bottom and extends to the workpiece placement area to detect the vertical first hole structure 1; the second base 30 is provided with a first transverse guide hole, and the second detection rod 60 penetrates into the first transverse guide hole from outside to inside and extends to the workpiece placement area to detect the transverse second hole structure 2.
In order to realize rapid detection, a first return spring S1 is arranged on the first detection rod 50, and the first return spring S1 drives the first detection rod 50 to move upwards to leave the workpiece placing area; the second detection rod 60 is provided with a second return spring S2, and the second return spring S2 drives the second detection rod 60 to move outwards to leave the workpiece placing area. Therefore, no matter which detection rod is pushed by a detection person to carry out qualification detection on the corresponding hole structure to be detected, the detection rod can exit from the workpiece placing area after the detection is finished, and the interference of other detection rods on the qualification detection of other hole structures to be detected is avoided.
This is because when the inspector inserts the first inspecting rod 50 into the first hole pattern 1, the first return spring S1 is compressed, the inspector releases the first inspecting rod 50, and the first return spring S1 is restored to its shape to urge the first inspecting rod 50 to move back upward. Similarly, the second detecting rod 60 is pushed.
Therefore, even if there is interference between the first hole structure 1 and the second hole structure 2, or even between the first hole structure 1 or the second hole structure 2 and the third hole structure 3, it is not necessary to manually pull out the inserted detection rod and then perform the subsequent detection. It is thus clear that this embodiment is not only in the same place a plurality of measuring sticks set, is favorable to taking in of measuring instrument, utilizes once to fix a position in the inspection hole internal diameter qualification moreover, has also carried out the qualification in hole position and has detected, and more importantly does benefit to the setting that detects back automatic re-setting, has improved the convenience that detects.
It should be noted that, of course, the positioning assembly need not necessarily be provided on the base 10, and the surfaces of the first base 20 and the second base 30 facing the workpiece placing area may be used as detection reference surfaces against which the aluminum die-cast workpiece abuts to be positioned at the time of detection.
In this embodiment, the moving tracks of the second detecting rod 60 and the first detecting rod 50 intersect, so that the pushing detection cannot be performed simultaneously, and the pushing detection needs to be performed step by step, but the detecting rods with non-interference moving tracks can be performed synchronously by multiple rods, so that the detection efficiency is further improved.
As shown in fig. 2, a first limiting portion 51 is disposed at a rear end of the first detecting rod 50, the first return spring S1 is sleeved on the first detecting rod 50, and two ends of the first return spring S1 are supported between the first limiting portion 51 and the first base 20; the rear end of the second detecting rod 60 is provided with a second limiting portion 61, the second return spring S2 is sleeved on the second detecting rod 60, and two ends of the second return spring S2 are pressed between the second limiting portion 61 and the second base 30. The first restricting portion 51 and the second restricting portion 61 restrict the return spring and also function as one detection lever operation portion.
Further, as shown in fig. 2, 5, and 6, the first detection lever 50 is provided with a first annular projection 52, the first annular projection 52 being for being restricted on the upper side of the aluminum die-cast workpiece, and the second detection lever 60 is provided with a second annular projection 62, the second annular projection 62 being for being restricted on the outer side of the aluminum die-cast workpiece. The depth to which the test rod extends into the bore configuration may be defined by the first annular crest 52 and the second annular crest 62. In this way, products with too shallow insertion and unqualified local pore diameter are avoided; secondly, the detection efficiency is prevented from being influenced by too deep insertion, and the damage to the hole bottom caused by too much insertion can also be avoided; third, the first and second detection levers 50 and 60 can be prevented from being separated from the corresponding bases.
Further, as shown in fig. 4 and 6, the first detecting lever 50 includes a front small diameter portion a and a rear large diameter portion b, and a sixth hole structure 6 is provided above the first hole structure 1 of the aluminum die-cast workpiece, the sixth hole structure 6 being located on the same axis as the first hole structure 1, the small diameter portion a of the first detecting lever 50 being used for detecting the first hole structure 1, and the large diameter portion b of the first detecting lever 50 being used for detecting the sixth hole structure 6. Realize a pole and examine doubly, improve detection efficiency.
As shown in fig. 1 and 6, the base 10 is further provided with a third base 40, the third base 40 is provided with a fourth transverse guiding hole, and the fifth detecting rod 90 passes through the fourth transverse guiding hole from outside to inside and enters the workpiece placing area to detect the fifth hole structure 5. The fifth aperture configuration 5 is remote from the first aperture configuration 1 and the second aperture configuration 2, detecting the absence of interference of the trajectory. And thus can be driven simultaneously with the first sensing lever 50 or the second sensing lever 60 when the fifth sensing lever 90 is tested.
As shown in fig. 2 and 3, the aluminum die-casting workpiece integrated hole structure detection tool 200 further includes a third detection rod 70 located on the first base 20, and a second transverse guide hole is formed in the first base 20; the third detection rod 70 penetrates into the second transverse guide hole from outside to inside and extends to the workpiece placement area; the moving track of the third detection bar 70 intersects both the moving tracks of the first detection bar 50 and the second detection bar 60. In this case, it is important to perform the inspection of the third hole structure 3 after the inspection of the first and second hole structures 1 and 2, because the first and second inspection levers 50 and 60 can be automatically reset without interfering with the inspection of the third hole structure 3, and it is less important whether the third inspection lever 70 is provided with a return spring.
In addition, the first base 20 is further provided with a fourth detection rod 80 parallel to the third detection rod 70, the first base 20 is provided with a third transverse guide hole, and the fourth detection rod 80 penetrates into the third transverse guide hole from outside to inside and extends to the workpiece placing area; the movable trace of the fourth detection bar 80 intersects with the movable trace of the second detection bar 60. Therefore, the fourth sensing lever 80 should be operated after the second sensing lever 60 in the same manner, but the fourth sensing lever 80 can be operated together with the third sensing lever 70 to achieve multi-hole simultaneous sensing.
As shown in fig. 6, the base 10 includes four supporting legs 11 and a platform 12, and the supporting legs 11 are supported below the platform 12; the workpiece placing area is located on the platform 12, and the first base 20, the second base 30 and the third base 40 are fixed on the platform 12.
Further, the positioning assembly comprises a positioning column D1 matched with the middle hole structure E of the aluminum die-casting workpiece and a plurality of positioning support blocks D2. The positioning column D1 and the positioning supporting block D2 realize positioning and support of the workpiece. It is of course even more preferred that the base 10 is provided with a number of auxiliary support columns Z for supporting the aluminium die-cast workpiece.
It is right above the utility model provides an utensil is examined to multi-direction hole structure integral type of aluminium die-casting work piece has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping the assistant the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. Utensil is examined to multi-direction hole structure integral type of aluminium die-casting work piece, its characterized in that: the device comprises a base, a first base, a second base, a first detection rod and a second detection rod;
the middle part of the base is a workpiece placing area; the first base and the second base are fixed on the outer side of the workpiece placing area;
the first base is provided with a vertical guide hole, and the first detection rod penetrates through the vertical guide hole from top to bottom and extends to the workpiece placing area;
a first transverse guide hole is formed in the second base, and the second detection rod penetrates into the first transverse guide hole from outside to inside and extends to the workpiece placement area;
the first detection rod is provided with a first return spring, and the first return spring drives the first detection rod to move upwards to be far away from the workpiece placing area;
and a second return spring is arranged on the second detection rod and drives the second detection rod to move outwards to be far away from the workpiece placing area.
2. The multi-directional hole structure integrated gauge for aluminum die-cast workpieces as recited in claim 1, wherein the movement trajectories of the second detection rod and the first detection rod intersect.
3. The multi-directional hole structure integrated gauge for the aluminum die-cast workpiece according to claim 1, further comprising a third detection rod on the first base, wherein the first base is provided with a second transverse guide hole;
the third detection rod penetrates into the second transverse guide hole from outside to inside and extends to the workpiece placing area;
the moving track of the third detection rod is intersected with the moving tracks of the first detection rod and the second detection rod.
4. The multi-directional hole configuration integrated gauge for aluminum die-cast workpieces as recited in claim 1, further comprising a fourth detection bar on the first base parallel to the third detection bar;
a third transverse guide hole is formed in the first base;
the fourth detection rod penetrates into the third transverse guide hole from outside to inside and extends to the workpiece placing area;
the moving track of the fourth detection rod is intersected with the moving track of the second detection rod.
5. The multi-directional hole configuration integrated gauge for aluminum die-cast workpieces as recited in claim 1, wherein the base comprises a positioning assembly adapted to a bottom surface of the aluminum die-cast workpiece.
6. The integrated multi-directional hole structure checking fixture for the aluminum die-casting workpiece as claimed in claim 5, wherein the positioning assembly comprises a positioning column and a plurality of positioning support blocks, the positioning column is matched with the middle hole structure of the aluminum die-casting workpiece.
7. The multi-directional hole structure integrated gauge for the aluminum die-casting workpiece according to claim 1, wherein a first limiting portion is arranged at the rear end of the first detection rod, the first return spring is sleeved on the first detection rod, and two ends of the first return spring are abutted between the first limiting portion and the first base;
the rear end of the second detection rod is provided with a second limiting part, the second return spring is sleeved on the second detection rod, and two ends of the second return spring are propped between the second limiting part and the second base.
8. The multi-directional hole structure integrated gauge for the aluminum die-cast workpiece according to claim 1, characterized in that: the base comprises four supporting legs and a platform, and the supporting legs are supported below the platform;
the workpiece placing area is located on the platform, and the first base and the second base are fixed on the platform.
9. The multi-directional hole structure integrated gauge for the aluminum die-casting workpiece according to claim 1, characterized in that: the first detection rod includes a front small diameter portion and a rear large diameter portion, thereby simultaneously detecting two hole configurations located on the same axis.
10. The multi-directional hole structure integrated gauge for the aluminum die-cast workpiece according to claim 1, characterized in that: the first detection rod is provided with a first annular bulge, the first annular bulge is used for limiting the upper side of the aluminum die-casting workpiece, the second detection rod is provided with a second annular bulge, and the second annular bulge is used for limiting the outer side of the aluminum die-casting workpiece.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223233454.2U CN218822012U (en) | 2022-12-01 | 2022-12-01 | Multi-directional hole structure integrated detection tool for aluminum die-casting workpiece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223233454.2U CN218822012U (en) | 2022-12-01 | 2022-12-01 | Multi-directional hole structure integrated detection tool for aluminum die-casting workpiece |
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| CN218822012U true CN218822012U (en) | 2023-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119178700A (en) * | 2024-11-26 | 2024-12-24 | 宁波爱柯迪精密部件有限公司 | Grinding stone residue detection device and detection method for aluminum die casting |
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2022
- 2022-12-01 CN CN202223233454.2U patent/CN218822012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119178700A (en) * | 2024-11-26 | 2024-12-24 | 宁波爱柯迪精密部件有限公司 | Grinding stone residue detection device and detection method for aluminum die casting |
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