CN117047065A - Knuckle die-casting blank and post-treatment process thereof - Google Patents
Knuckle die-casting blank and post-treatment process thereof Download PDFInfo
- Publication number
- CN117047065A CN117047065A CN202311123054.2A CN202311123054A CN117047065A CN 117047065 A CN117047065 A CN 117047065A CN 202311123054 A CN202311123054 A CN 202311123054A CN 117047065 A CN117047065 A CN 117047065A
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- CN
- China
- Prior art keywords
- blank
- gate
- casting
- die
- knuckle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004512 die casting Methods 0.000 title claims abstract description 27
- 238000005266 casting Methods 0.000 claims abstract description 50
- 238000003754 machining Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 21
- 238000005498 polishing Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 5
- 239000013072 incoming material Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
A knuckle die-casting blank and a post-treatment process thereof, the die-casting blank comprising: the steering knuckle casting die comprises a blank main body, a gate part to be sawed and removed from the blank main body along a gate sawing position, and a conical groove penetrating the blank main body and formed in the gate part to be sawed and removed at the bottom, wherein when the bottom of the conical groove is separated from the blank main body along with the gate part, a conical hole formed by the rest part of the conical groove is used for forming a central hole of a steering knuckle casting product, the conical hole is formed into a blank hole which is inclined downwards at a preset draft angle with the maximum diameter of the conical hole, the maximum diameter of the conical hole is determined based on the central hole of the casting product and a preset machining allowance, and the radius of the conical hole is smaller than the radius of the central hole at the corresponding axial position by the preset machining allowance. In the post-treatment process: the six-axis robot accurately recognizes and grabs the incoming casting split conical groove according to the input information of the 3D camera, and enters the flexible sawing unit; and (3) placing the mold gate on a gate auxiliary clamping device to clamp the mold gate, and performing automatic gate sawing treatment.
Description
Technical Field
The application relates to the field of steering knuckle casting processing, in particular to a steering knuckle die-casting blank and a post-treatment process thereof.
Background
At present, after the aluminum alloy castings are die-cast, an operator identifies the model of the incoming castings according to a casting process card and manually transfers the incoming castings to a sawing and drilling integrated machine; the operator selects a special sawing and drilling tool to position the incoming material casting according to the model of the incoming material casting, and performs manual sawing pouring gate and drilling treatment on the incoming material casting; then manually transferring the casting to a trimming machine, selecting a special trimming tool by an operator according to the model of the casting, positioning the casting, and polishing the trimming of the parting surface by a manual work; after the treatment of the incoming castings is completed, the incoming castings are manually transported to the next working procedure for treatment. Because the casting output is fast, production efficiency is high, and manual workpiece taking, trimming, sawing and drilling are high in operation intensity, and production efficiency is low, and the casting output is restrained as a production bottleneck. Meanwhile, a special trimming die and a special sawing and drilling fixture are needed for each product, so that universality and flexibility cannot be formed, the cost is high, and the production is seriously unbalanced.
Therefore, an efficient, flexible and low-cost automatic treatment process is urgently needed to meet the future industrial upgrading requirements.
Disclosure of Invention
In order to solve the problems, the application aims to provide a knuckle die-casting blank and a post-treatment process thereof, which can be clamped by a six-axis robot and used for flexible, automatic deburring and gate sawing treatment by a general tool.
According to an aspect of the present application, there is provided a knuckle die-cast blank comprising: the steering knuckle casting die comprises a blank main body, a gate part to be sawed and removed from the blank main body along a gate sawing position, and a conical groove penetrating the blank main body and formed in the gate part to be sawed and removed at the bottom, wherein when the bottom of the conical groove is separated from the blank main body along with the gate part, a conical hole formed by the rest part of the conical groove is used for forming a central hole of a steering knuckle casting product, and is formed into a blank hole which is inclined downwards at a preset draft angle with the maximum diameter of the conical hole, the maximum diameter of the conical hole is determined based on the central hole of the casting product and a preset machining allowance, and the radius of the conical hole is smaller than the radius of the central hole at the corresponding axial position by the preset machining allowance.
Preferably, the tapered bore portion of the tapered slot has a plurality of gripping platforms therein.
According to another aspect of the present application, there is provided a post-treatment process for a knuckle die-cast blank, for performing a post-treatment on the knuckle die-cast blank, comprising the steps of: s1, feeding a knuckle die-casting blank through a roller way; s2, using a 3D camera arranged above the roller way to photograph, identify and transmit information to the six-axis robot; s3, the six-axis robot operates a clamping platform in the conical hole according to the input information of the 3D camera so as to grasp the knuckle die-casting blank and enter the flexible sawing unit; s4, grabbing the knuckle die-casting blank to a deburring station by a six-axis robot, calling a deburring program, and polishing the burrs of the parting surface of the knuckle die-casting blank; s5, the six-axis robot grabs the knuckle die-casting blank, places the knuckle die-casting blank on a gate auxiliary clamping device to clamp the gate part in a positioning mode, calls a gate sawing program, pushes the knuckle die-casting blank and the gate auxiliary clamping device to jointly advance, and saw the gate along a gate sawing position after the gate part touches the saw; s6, placing the knuckle die-casting blank after the treatment on an external roller way of the flexible sawing unit by a six-axis robot, and entering the next working procedure for treatment.
The application has the following beneficial effects and advantages:
1. according to the application, the 3D camera and the industrial six-axis robot are used for accurately identifying, grabbing and positioning the aluminum alloy castings, and flexible and automatic deburring and gate sawing treatment is performed through a universal tool under the clamping of the six-axis robot.
2. On one hand, the flexible and automatic processing is realized, the high-efficiency production is realized, on the other hand, the equipment investment is reduced, meanwhile, the special tool investment is eliminated, the future investment for products is greatly reduced, in addition, the number of field operators can be reduced, and the labor intensity of workers is reduced.
3. As an efficient, flexible and low-cost automatic treatment process, the method can meet the future industrialized upgrading requirement.
Drawings
Fig. 1 is a flow chart of the method operations of the knuckle die-cast blank post-treatment process according to the present application.
Fig. 2 is a partial cross-sectional view of a knuckle die-cast blank to which the post-treatment process of the present application is applied.
Fig. 3 schematically shows a clamping part in a split conical groove in a die-cast blank.
Detailed Description
Exemplary embodiments of the present application are described in detail below with reference to the attached drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present application to enable one skilled in the art to make and use the present application in a number of different environments and for a number of different applications. The scope of the application is therefore defined by the appended claims, and the exemplary embodiments are not intended, and should not be considered, as limiting the scope of the application. Moreover, for ease of description, the dimensions of the various elements shown in the figures are not necessarily drawn to scale, and references to orientation, such as longitudinal, relative to the body, and orientation or positional relationships indicated above, below, left, right, top, bottom, etc., are based on the orientation or positional relationships shown in the figures, are merely for ease of describing the application and to simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the application. The order and numerical values of the components and assembly steps set forth in the embodiments do not limit the scope of the present application unless specifically stated otherwise. And any numerical range recited herein is intended to include all sub-ranges subsumed therein, with the use of numerical ranges indicated by "numerical values a through B" referring to ranges subsumed with the endpoint numerical values A, B. It will be appreciated by those of skill in the art that the terms "first," "Sn," "step," etc., herein are merely used to distinguish between different steps, devices or modules, etc., and do not represent any particular technical meaning nor necessarily logical order between them. For example, some steps two and three can be exchanged or parallel.
According to the application, aiming at the problems of low efficiency, poor universality, high production cost, high labor intensity and the like of the existing aluminum alloy casting die-casting post-treatment process, the application provides an efficient, flexible, low-cost and automatic aluminum alloy casting die-casting post-treatment process (also simply referred to as a steering knuckle die-casting blank post-treatment process or a post-treatment process).
< cast blank >
First, a knuckle die-cast blank (also simply referred to as "cast blank 7") to which the post-treatment process of the present application is applied will be described.
As shown in fig. 2, a casting blank 7 for processing into a knuckle includes: a blank body 1, a gate portion 2 to be sawed from the blank body 1 along a gate sawing position 4, and a tapered groove 3 penetrating the blank body 1 and having a bottom formed in the gate portion 2 to be sawed.
Wherein the gate portion 2 is formed at a gate position corresponding to a mold (not shown, for example, a lower mold) into which molten aluminum flows, and subsequently needs to be sawed along the gate sawing position 4, for example, to be sawed in a plane as described above. At this point the bottom of the conical groove 3 will then be cut away from the blank body 1, exposing a conical hole 8 of for example at least 40mm diameter, formed by the remainder of the conical groove 3.
The tapered bore 8 is used to form a central bore of a subsequent knuckle casting product, preferably as a blank bore inclined downwardly at a predetermined draft angle at a maximum diameter of the tapered bore 8, the maximum diameter of the tapered bore 8 being determined based on the central bore of the casting product and a predetermined machining allowance, wherein the radius of the tapered bore 8 is smaller than the radius of the central bore at the axially corresponding location by the predetermined machining allowance.
As shown in fig. 3, three clamping platforms 6 uniformly distributed in the tapered slot 3 are used as 3D identification references and robot clamping parts. The robot operating tail end stretches into the conical hole 8 to grasp and clamp the clamping platform 6.
Alternatively, the tapered groove 3 is formed corresponding to a tap (not shown) provided in a mold (e.g., upper mold), so as to be formed in exactly the same shape and size as the tap.
For example, the clamping platform 6 may be directly integrally cast by concavely forming a clamping plane mold body portion (female mold, not shown) at a corresponding position of the outer peripheral surface of the split cone.
Furthermore, the blank body 1, for example, has a parting plane flash 5 in the middle blank portion, which is formed by the fit gap between the upper and lower dies, and which needs to be polished off to ensure the contour dimension of the casting blank 7.
Further, the outer peripheral side of the gate portion 2 may be designed as a standard fixed dimension, and the slope of the runner for casting the gate portion 2 may be selected to be in the range of 25 ° ± 5 ° so that the jig is common, and the casting is fixed while sawing the gate portion 2.
< post-treatment Process >
The present application will be described in further detail with reference to fig. 1.
According to the knuckle die-casting blank post-treatment process, the operation flow of the method is shown in fig. 1, and the concrete process comprises the following steps:
s1, taking the die-cast alloy A356.2 as a knuckle die-cast blank, and selecting a certain die-cast aluminum alloy casting, and automatically feeding through a logistics roller way;
s2, shooting and identifying the A356.2 aluminum alloy casting by using A3D camera arranged above the roller way, and transmitting information such as the model, the placing posture and the like of the A356.2 aluminum alloy casting to the six-axis robot;
s3, the six-axis robot operates the clamping platform 6 in the conical groove 3 according to the input information of the 3D camera to grasp the A356.2 aluminum alloy casting, and the aluminum alloy casting enters the flexible sawing unit;
s4, the six-axis robot grabs the A356.2 aluminum alloy casting to a deburring station, a deburring program is called according to the model of the A356.2 aluminum alloy casting, the A356.2 aluminum alloy casting is clamped by the six-axis robot, and automatic polishing treatment is carried out on the burrs of the parting surface of the aluminum alloy casting;
s5, the six-axis robot grabs the A356.2 aluminum alloy casting, places the A356.2 aluminum alloy casting on a gate auxiliary clamping device to clamp the gate part 2 in a positioning mode, calls a gate sawing program according to the model of the A356.2 aluminum alloy casting, pushes the A356.2 aluminum alloy casting and the gate auxiliary clamping device to jointly advance, and carries out automatic gate sawing treatment after the gate part 2 of the A356.2 aluminum alloy casting touches a circular saw;
s6, placing the treated A356.2 aluminum alloy casting on an external material flow roller way of the flexible sawing unit by a six-axis robot, and entering the next procedure for treatment.
According to the knuckle die-casting blank post-treatment process, a certain A356.2 aluminum alloy casting is accurately identified, grabbed and positioned through A3D camera and an industrial six-axis robot, and flexible, automatic deburring and gate sawing treatment are performed through a universal tool under the clamping of the six-axis robot. Compared with the original treatment process, the processing efficiency is improved by about 15%, the production cost is reduced by about 17%, the number of field operation workers is halved, and meanwhile, the labor intensity of the workers is reduced.
In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. While the application has been described with reference to various specific embodiments, it should be understood that numerous changes could be made within the spirit and scope of the inventive concepts described. Accordingly, it is intended that the application not be limited to the described embodiments, but that it have the full scope defined by the language of the following claims.
Claims (6)
1. A knuckle die-cast blank comprising: the forming device comprises a blank main body (1), a gate part (2) to be sawn and removed from the blank main body (1) along a gate sawing position (4), and a conical groove (3) penetrating the blank main body (1) and formed in the gate part (2) to be sawn and removed at the bottom, wherein when the bottom of the conical groove (3) is separated from the blank main body (1) along with the gate part (2), a conical hole (8) formed by the rest part of the conical groove (3) is used for forming a central hole of a knuckle casting product, the conical hole is formed into a blank hole which is inclined downwards at a preset draft angle by the maximum diameter of the conical hole (8), and the maximum diameter of the conical hole (8) is determined based on the central hole of the casting product and a preset machining allowance, wherein the radius of the conical hole (8) is smaller than the radius of the central hole at the corresponding axial position by the preset machining allowance.
2. Knuckle die-cast blank according to claim 1, characterized in that the conical bore (8) part of the conical groove (3) has a plurality of clamping platforms (6) inside.
3. Knuckle die-cast blank according to claim 1, characterized in that the conical groove (3) is formed in correspondence with a split cone provided in the mould.
4. A knuckle die-cast blank according to claim 3, characterized in that the clamping platform (6) is directly integrally cast via a clamping plane die body portion concavely formed at a corresponding position of the outer peripheral surface of the split cone.
5. A knuckle die-cast blank post-treatment process for post-treating a knuckle die-cast blank as defined in any one of claims 2 to 4, comprising the steps of:
s1, feeding a knuckle die-casting blank through a roller way;
s2, using a 3D camera arranged above the roller way to photograph, identify and transmit information to the six-axis robot;
s3, the six-axis robot operates a clamping platform (6) in the conical hole (8) according to the input information of the 3D camera so as to grasp the knuckle die-casting blank and enter the flexible sawing unit;
s4, grabbing the knuckle die-casting blank to a deburring station by a six-axis robot, calling a deburring program, and polishing the burrs of the parting surface of the knuckle die-casting blank;
s5, the six-axis robot grabs the knuckle die-casting blank, places the knuckle die-casting blank on a gate auxiliary clamping device to clamp the gate part (2), calls a gate sawing program, pushes the knuckle die-casting blank and the gate auxiliary clamping device to jointly advance, and saw the gate along a gate sawing position (4) after the gate part (2) touches the saw;
s6, placing the knuckle die-casting blank after the treatment on an external roller way of the flexible sawing unit by a six-axis robot, and entering the next working procedure for treatment.
6. The post-treatment process of a knuckle die-cast blank according to claim 5, wherein the knuckle die-cast blank is an a356.2 aluminum alloy casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311123054.2A CN117047065A (en) | 2023-09-01 | 2023-09-01 | Knuckle die-casting blank and post-treatment process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311123054.2A CN117047065A (en) | 2023-09-01 | 2023-09-01 | Knuckle die-casting blank and post-treatment process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117047065A true CN117047065A (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311123054.2A Pending CN117047065A (en) | 2023-09-01 | 2023-09-01 | Knuckle die-casting blank and post-treatment process thereof |
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