Die casting forming method and device

Abstract

The invention provides a die casting forming method and device. The die casting forming method comprises the steps that a die casting semi-finished product is obtained; carrying out cinder ladle removal operation on the die casting semi-finished product; the die casting semi-finished product with the slag ladle removed is placed on a laser cutting platform; and controlling a laser cutting robot to carry out laser cutting on the part, connected to each connecting branch part, of the die casting main body along the laser cutting path. Compared with a traditional mode of mechanically shearing a water gap part of the die casting by a shearing die, the die casting forming method disclosed by the invention has the advantages that the early-stage debugging period is greatly shortened, the production efficiency of the die casting is improved, the part, connected to each connecting branch part, of the die casting main body is relatively smooth after laser cutting, and the production efficiency of the die casting main body is improved. And the problems of quality defects such as shear crushing damage, cracks and more water gap residues of the die casting are effectively avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of die casting processing, and in particular to a die casting molding method and device. Background Art

[0002] About 15% to 20% of automotive parts are aluminum alloy die-castings produced by different casting methods. These aluminum alloy die-castings are mainly key components and important structural components of the power system, such as the cylinder block of the engine system, the engine gear chamber, the crankcase and the gearbox, etc.

[0003] Since the die casting produced by the casting process carries a sprue, it is necessary to remove the sprue on the die casting. For shearing the sprue, the relevant technology is to install a shearing die (positioning fixture) on the hydraulic press, position the die casting through the shearing die, and align the sprue part of the die casting with the shearing blade of the shearing die, so that the hydraulic press drives the shearing blade of the shearing die to punch and shear the sprue part of the die casting.

[0004] However, the above-mentioned technical solution of shear nozzle has the following obvious technical problems:

[0005] 1. The early debugging period of the shearing die is long, which makes the production efficiency of die castings low.

[0006] 2. In the process of punching and shearing of die castings, metal shearing involves metal deformation, and the control strength and accuracy of metal deformation are poor, which makes the shearing die prone to shearing damage, cracks and more quality defects of the die castings in the process of shearing the water outlet. Summary of the invention

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a die casting forming method and device that can avoid shear damage, cracks and residual water in the die casting and has high production efficiency.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A die casting forming method, comprising:

[0010] Obtain semi-finished die casting products;

[0011] Performing a slag removal operation on the semi-finished die casting product;

[0012] Placing the semi-finished die casting after removing the slag bag on a laser cutting platform, the semi-finished die casting comprises a die casting body, a nozzle body and a plurality of connecting branches, the nozzle body is connected to the outer side wall of the die casting body through the plurality of connecting branches, and the plurality of connecting branches are sequentially arranged along the circumferential laser cutting path of the outer side wall of the die casting body;

[0013] The laser cutting robot is controlled to perform laser cutting on the portion where the die casting body is connected to each of the connecting branches along the laser cutting path.

[0014] In one embodiment, the step of obtaining the semi-finished die casting part is specifically: filling the molding cavity of the die casting mold with molten metal liquid, waiting for the molten metal liquid to solidify and cool, and then obtaining it after the die casting mold is opened and demolded.

[0015] In one embodiment, before the step of removing the slag bag from the semi-finished die casting, the die casting forming method further includes:

[0016] The die casting semi-finished product after demoulding is grabbed by the first robot and placed on the slag bag removal station.

[0017] In one of the embodiments, the step of performing a slag removal operation on the semi-finished die casting product is specifically: performing a slag removal operation on the semi-finished die casting product by using a pneumatic hammer.

[0018] In one of the embodiments, the step of placing the semi-finished die-casting part after the slag bag is removed on the laser cutting platform is specifically: the semi-finished die-casting part after the slag bag is removed is grabbed by the first robot and placed on the positioning fixture of the laser cutting platform for positioning.

[0019] In one embodiment, after controlling the laser cutting robot to complete laser cutting, the die casting forming method further includes:

[0020] Controlling the second robot to grab the die-casting body from the laser cutting platform to the material conveyor belt;

[0021] The second robot is controlled to grab the nozzle body from the laser cutting platform to a scrap truck.

[0022] In one embodiment, after the steps of controlling the second robot to grab the nozzle body from the laser cutting platform to the material conveyor belt, and controlling the second robot to grab the nozzle body from the laser cutting platform to the scrap car, the die casting molding method further includes:

[0023] Clean the laser cutting platform and the positioning fixture.

[0024] In one embodiment, before the step of placing the die casting semi-finished product after removing the slag bag on the laser cutting platform, and after the step of removing the slag bag from the die casting semi-finished product, the die casting forming method further includes:

[0025] It is determined whether there is any slag bag remaining in the semi-finished die casting product; if so, the slag bag of the semi-finished die casting product is subjected to a secondary slag bag removal operation.

[0026] In one embodiment, before the step of controlling the laser cutting robot to laser cut the portion where the die casting body is connected to each of the connecting branches along the laser cutting path, and after the step of placing the die casting semi-finished product after the slag bag is removed on the laser cutting platform, the die casting forming method further includes:

[0027] Obtain control instructions for the laser cutting path.

[0028] A die casting molding device is provided, which processes the die casting semi-finished product by using the die casting molding method described in any of the above embodiments.

[0029] Compared with the prior art, the present invention has at least the following advantages:

[0030] 1. The die-casting forming method disclosed in the present invention first obtains a semi-finished die-casting, and then performs a slag bag removal operation on the semi-finished die-casting so that the semi-finished die-casting after the slag bag removal operation can be accurately positioned when placed on a laser cutting platform, thereby effectively avoiding the problem of positioning deviation of the semi-finished die-casting caused by the slag bag; then the laser cutting robot is controlled to perform laser cutting on the part where the die-casting body is connected to each connecting branch along the laser cutting path, so that each connecting branch is separated from the outer side wall of the die-casting body, thereby realizing the removal of the water nozzle on the die-casting.

[0031] 2. Compared with the traditional method of mechanically shearing the nozzle part of the die casting with a shearing die, the die casting forming method disclosed in the present invention greatly shortens the initial debugging period, improves the production efficiency of the die casting, and makes the part where the die casting body is connected to each connecting branch smoother after laser cutting, effectively avoiding the quality defects of shearing damage, cracks and a large number of nozzle residues in the die casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 is a flow chart of a die casting forming method in one embodiment;

[0034] Figure 2 This is a schematic diagram of the structure of a positioning fixture in one embodiment;

[0035] Figure 3 This is a schematic diagram of the structure of a positioning fixture in one embodiment;

[0036] Figure 4 It is a physical picture of the hydraulic press and shearing die of the prior art;

[0037] Figure 5 This is a physical picture of the laser cutting of the semi-finished die-casting parts. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the inventive content of the present disclosure more thoroughly and comprehensively understood.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] The present disclosure provides a die casting molding method. In one embodiment, the die casting molding method includes: obtaining a semi-finished die casting; performing a slag bag removal operation on the semi-finished die casting; placing the semi-finished die casting after the slag bag is removed on a laser cutting platform, the semi-finished die casting includes a die casting body, a nozzle body and a plurality of connecting branches, the nozzle body is connected to the outer side wall of the die casting body through the plurality of connecting branches, and the plurality of connecting branches are sequentially arranged along the circumferential laser cutting path of the outer side wall of the die casting body; controlling a laser cutting robot to perform laser cutting on the portion of the die casting body connected to each of the connecting branches along the laser cutting path.

[0042] The die casting forming method disclosed in the present invention first obtains a semi-finished die casting, and then performs a slag bag removal operation on the semi-finished die casting so that the semi-finished die casting after the slag bag removal operation can be accurately positioned when placed on the laser cutting platform, thereby effectively avoiding the problem of positioning deviation of the semi-finished die casting caused by the slag bag; then the laser cutting robot is controlled to perform laser cutting on the part where the die casting body is connected to each connecting branch along the laser cutting path, so that each connecting branch is separated from the outer side wall of the die casting body, and the water nozzle on the die casting is removed. Compared with the traditional shearing die mechanically shearing the water nozzle part of the die casting, the above-mentioned die casting forming method greatly shortens the early debugging cycle, improves the production efficiency of the die casting, and makes the part where the die casting body is connected to each connecting branch relatively flat after laser cutting, effectively avoiding the quality defects of shearing and crushing, cracks and more water nozzle residues in the die casting.

[0043] See also Figure 1 , which is a flow chart of a die casting molding method according to an embodiment of the present disclosure. The die casting molding method includes part or all of the following steps.

[0044] S100: Obtain semi-finished die casting products.

[0045] In this embodiment, a semi-finished die casting is obtained. Further, the steps of obtaining the semi-finished die casting are as follows: under the action of a die casting machine, molten metal liquid is injected into the die cavity of a die casting die, and the semi-finished die casting is obtained through the die casting stages of pressure holding, cooling and ejection.

[0046] S200: performing a slag removal operation on the semi-finished die casting product.

[0047] In this embodiment, a slag bag removal operation is performed on the semi-finished die casting product to remove the slag bag on the semi-finished die casting product. Specifically, the slag bag removal station is located on the slag bag removal device, and the slag bag removal device is used to perform an automated slag bag removal operation on the semi-finished die casting product, which effectively improves the efficiency of slag bag removal; and, since the slag bag is usually located on the peripheral outer wall of the semi-finished die casting product, the slag bag removal operation is performed on the semi-finished die casting product, which facilitates the subsequent precise positioning of the semi-finished die casting product on the positioning fixture 10 of the laser cutting platform.

[0048] Furthermore, before the step of performing a slag bag removal operation on the die casting semi-finished product, the die casting forming method further comprises: grabbing the die casting semi-finished product after demolding by a first robot and placing it on a slag bag removal station.

[0049] In this embodiment, the die-casting semi-finished product is grasped by the first robot, which effectively avoids the risk and complicated process of manual picking up, and improves the efficiency of picking up the die-casting semi-finished product. In this embodiment, the first robot grasps the preset grasping surface of the die-casting semi-finished product, and the preset grasping surface is the non-main appearance surface of the die-casting semi-finished product, which avoids the problem that the main appearance surface of the die-casting semi-finished product is damaged. Furthermore, the step of performing a slag bag removal operation on the die-casting semi-finished product is specifically: performing a slag bag removal operation on the die-casting semi-finished product by using a pneumatic hammer.

[0050] S300: placing the semi-finished die casting product after removing the slag bag on a laser cutting platform.

[0051] In this embodiment, the die-casting semi-finished product includes a die-casting body 01, a sprue body 02 and a plurality of connecting branches 03. The sprue body 02 is connected to the outer wall of the die-casting body 01 through a plurality of connecting branches 03. The plurality of connecting branches 03 are arranged in sequence along the circumferential laser cutting path of the outer wall of the die-casting body 01.

[0052] Furthermore, the outer wall of the die-casting body 01 is provided with a plurality of screw hole bosses 031, each connecting branch 03 is connected between two adjacent screw hole bosses 031, and each connecting branch 03 is used to connect the sprue body 02 with the pouring channel of the die-casting body 01 when the die cavity of the die-casting mold is filled with molten metal liquid.

[0053] In this way, a number of connecting branches 03 are connected between two adjacent screw hole bosses 031 to form a plurality of branch pouring channels for simultaneously injecting molten metal liquid, thereby effectively ensuring the full forming of the die-casting main body 01, and thus making the forming density of the parts where the several connecting branches 03 are connected to the die-casting main body 01 better; in this way, after controlling the laser cutting robot to laser cut the parts where the die-casting main body 01 is connected to each connecting branch 03 along the laser cutting path, the parts where the die-casting main body 01 is connected to each connecting branch 03 are made relatively flat.

[0054] Furthermore, the portion where each connecting branch 03 is connected between two adjacent screw hole bosses 031 presents a concave curved profile. It can be understood that in this embodiment, the outer contour structure of the semi-finished die casting is relatively complex. If the traditional shearing method of the shearing die is used to remove the water outlet, it firstly takes a lot of structural design time and manufacturing cost to manufacture the shearing die, and secondly, it is necessary to perform tedious early debugging of the shearing die.

[0055] Therefore, compared with the traditional shearing method of the notch die, the laser cutting method in the die casting forming method in this embodiment has a better removal effect and a higher removal efficiency, avoiding the quality defects of a large number of residual water nozzles; at the same time, there is no need to spend more time and manufacturing costs to design and debug the notch die, which effectively improves the production efficiency of the die castings and avoids the problems of shearing injuries, cracks and a large number of residual water nozzles.

[0056] S400: Controlling the laser cutting robot to perform laser cutting on the portion where the die casting body 01 is connected to each of the connecting branches 03 along the laser cutting path.

[0057] In this embodiment, the first robot grabs the die-casting semi-finished product after the slag bag is removed from the slag removal station of the slag removal device and places it on the laser cutting platform. Then the laser cutting robot reads the control instructions of the preset laser cutting path, thereby controlling the laser cutting head of the laser cutting robot to perform cutting movement along the laser cutting path.

[0058] The die casting forming method disclosed in the present invention first obtains a semi-finished die casting, and then performs a slag bag removal operation on the semi-finished die casting so that the semi-finished die casting after the slag bag removal operation can be accurately positioned when placed on the laser cutting platform, thereby effectively avoiding the problem of positioning deviation caused by the slag bag on the semi-finished die casting; then the laser cutting robot is controlled to perform laser cutting on the part where the die casting body 01 is connected to each connecting branch 03 along the laser cutting path, so that each connecting branch 03 is separated from the outer wall of the die casting body 01, and the water nozzle on the die casting is removed. Compared with the traditional shearing die mechanically shearing the water nozzle part of the die casting, the above-mentioned die casting forming method greatly shortens the early debugging cycle, improves the production efficiency of the die casting, and makes the part of the die casting body 01 connected to each connecting branch 03 relatively flat after laser cutting, effectively avoiding the quality defects of shearing and crushing, cracks and more water nozzle residues in the die casting.

[0059] In one embodiment, before the step of controlling the laser cutting robot to laser cut the portion where the die casting body 01 is connected to each of the connecting branches 03 along the laser cutting path, and after the step of placing the die casting semi-finished product after removing the slag bag on the laser cutting platform, the die casting forming method further includes: obtaining a control instruction of the laser cutting path. In this embodiment, the control instruction of the laser cutting path is input into the control terminal of the laser cutting robot in advance during the early equipment debugging stage.

[0060] Furthermore, the portion where each connecting branch 03 is connected between two adjacent screw hole bosses 031 presents a concave curved profile, and the laser cutting path is a curved path. Before the step of obtaining the control instruction of the laser cutting path, the method further includes: firstly dividing the laser cutting path to obtain a plurality of laser cutting path units; then setting the control processing path instruction according to each laser cutting path unit to obtain a plurality of control processing path instruction units; then splicing the plurality of control processing path instruction units to obtain the control instruction of the laser cutting path, so as to better remove the water inlet of the die casting and improve the flatness of the removed surface. It should be noted that the number of laser cutting path units can be flexibly set according to the curvature change of the laser cutting path or the flatness of the removed surface.

[0061] Furthermore, the cutting speed of the laser cutting robot along the laser cutting path is 6m / min-7m / min.

[0062] However, if the laser cutting robot moves too slowly along the laser cutting path, the energy consumption required for laser cutting is high; on the contrary, if the laser cutting robot moves too fast along the laser cutting path, the nozzle is not cleanly cut. To this end, further, the real-time moving speed of the laser cutting head of the laser cutting robot is controlled according to the thickness of the part where each connecting branch 03 along the laser cutting path is connected to the outer wall of the die casting body 01, so as to avoid the problem of high energy consumption or clean cutting required for laser cutting, so that the energy consumption required for laser cutting is low, and the nozzle can be effectively cut along the laser cutting path.

[0063] Furthermore, when the thickness of the part where the connecting branch 03 is connected to the outer wall of the die-casting main body 01 is relatively large, the speed of moving the laser cutting head for cutting is controlled to be relatively low; on the contrary, when the thickness of the part where the connecting branch 03 is connected to the outer wall of the die-casting main body 01 is relatively thin, the speed of moving the laser cutting head for cutting is controlled to be relatively fast, thereby avoiding the problems of high energy consumption required for laser cutting or incomplete cutting, making the energy consumption required for laser cutting relatively low, and the water nozzle can be effectively cut along the laser cutting path.

[0064] Furthermore, the output power of the laser cutting robot is 2.8kw-3.0kw.

[0065] However, if the laser processing power along the laser cutting path is high, the energy consumption is large; if the laser processing power along the laser cutting path is low, the nozzle is not cleanly removed. Therefore, the output power of the laser cutting head is further controlled according to the speed at which the laser cutting head moves and cuts.

[0066] Further, the thickness of the connecting branch 03 is collected to obtain a thickness image; the thickness image is processed to obtain an actual thickness image; the thickness of the portion where the connecting branch 03 is connected to the outer wall of the die casting body 01 is obtained according to the actual thickness image, and the thickness values ​​of several connecting branches 03 are obtained; the corresponding moving cutting speed of the laser cutting head is obtained according to the thickness value of each connecting branch 03, and the corresponding output power of the laser cutting head is obtained according to the moving cutting speed of the laser cutting head. In this embodiment, the laser cutting process of the connecting branches 03 with different thickness values ​​is differentiated to ensure that the nozzle body 02 and several connecting branches 03 of the semi-finished die casting are cleanly cut off, while also effectively saving the energy consumption of the laser cutting robot.

[0067] Furthermore, a data table is established in which the thickness value intervals of the plurality of connecting branches 03 correspond to the moving speeds and output powers of the plurality of laser cutting heads. In this way, data accumulation is performed in the early debugging stage of the laser cutting robot so as to select the optimal cutting parameters of the laser cutting robot.

[0068] like Figure 2 and Figure 3 As shown, in one of the embodiments, the step of placing the semi-finished die-casting part after removing the slag bag on the laser cutting platform is specifically: the first robot grabs the semi-finished die-casting part after removing the slag bag and places it on the positioning fixture 10 of the laser cutting platform for positioning.

[0069] In this embodiment, the positioning fixture 10 includes a support assembly 100; the support assembly 100 includes a support base plate 110 and a plurality of planar support columns 120 disposed on the support base plate 110, and a plurality of positioning holes 1101 disposed at intervals are opened on the support base plate 110;

[0070] The lower end of each of the planar support columns 120 is arranged corresponding to the corresponding positioning hole 1101, and the lower end of each of the planar support columns 120 is detachably connected to the support base plate 110, and the upper end of each of the planar support columns 120 abuts against the snap-fit ​​surface of the maximum outer contour of the semi-finished die-casting part.

[0071] It can be understood that by simultaneously abutting the upper ends of multiple planar support columns 120 against the locking surface of the maximum outer contour of the semi-finished die-cast part, the semi-finished die-cast part is suspended on the support base plate 110. In this way, when the laser cutting head of the laser cutting robot performs cutting movement along the laser cutting path, the laser beam of the laser cutting head can be prevented from causing accidental cutting of the support base plate 110, that is, the distance at which the laser beam is irradiated to the support base plate 110 is increased.

[0072] It should be noted that, in this embodiment, the die-casting semi-finished product is the first outer shell of the gearbox, and the gearbox also includes a second outer shell. Therefore, the fitting surface of the maximum outer contour of the die-casting semi-finished product is the plane where the first outer shell and the second outer shell are fitted and abutted along their maximum outer contours.

[0073] like Figure 2 and Figure 3 As shown, in one embodiment, the positioning fixture 10 further includes a rough positioning assembly 200; the rough positioning assembly 200 includes a side profiling stopper 210 and a connecting column 220; the side profiling stopper 210 is formed with a profiling abutment surface 2110, and the profiling abutment surface 2110 is used to abut against the outer wall periphery of the maximum outer contour of the die casting body 01; the threaded portion at one end of the connecting column 220 is threadedly connected with the corresponding internal threaded portion of the positioning hole 1101, and the other end of the connecting column 220 is screwed with the side profiling stopper 210. The profiling abutment surface 2110 of the rough positioning assembly 200 abuts against the outer wall periphery of the maximum outer contour of the die casting body 01, so as to better limit the position deviation of the die casting body 01 on the horizontal plane, and at the same time, the convenience of placing the semi-finished die casting is effectively improved.

[0074] It can be understood that in this embodiment, there are two coarse positioning components 200. Of course, this is not limited here, and those skilled in the art can also make other choices as needed.

[0075] like Figure 2 and Figure 3 As shown, in one embodiment, the positioning fixture 10 further includes a precision positioning component 300;

[0076] The precision positioning assembly 300 includes a base block 310 and a positioning pin 320; the base block 310 is provided with a plurality of through holes 3101, one end of the positioning pin 320 is arranged in the corresponding through hole 3101, and the remaining through holes 3101 are used to align with the corresponding positioning holes 1101. The base block 310 is respectively penetrated by a pin through the corresponding positioning hole 1101 and the corresponding through hole 3101, so that the base block 310 is fixedly installed on the supporting base plate 110; the pin head at the other end of the positioning pin 320 is positioned in the inner hole of the corresponding screw hole boss 031 (not shown).

[0077] It can be understood that in this embodiment, the pin head at the other end of the positioning pin 320 is inserted into the inner hole of the corresponding screw hole boss 031 to achieve further precise positioning of the semi-finished die-casting product.

[0078] like Figure 2As shown, in one embodiment, the periphery of the support base plate 110 is provided with a first serial number marking protrusion 1102 in the horizontal direction, and the periphery of the support base plate 110 is provided with a second serial number marking protrusion 1103 in the vertical direction, wherein the first serial number marking protrusion 1102 is composed of letters A to Y in sequence, and the second serial number marking protrusion 1103 is composed of numbers 1 to 19 in sequence.

[0079] It can be understood that in this embodiment, the positioning holes 1101 on the support base plate 110 are arranged in a matrix distribution, so that the letters A to Y in the first serial number mark protrusions 1102 correspond to the positioning holes 1101 in the horizontal direction one by one; similarly, the numbers 1 to 19 in the second serial number mark protrusions 1103 correspond to the positioning holes 1101 in the vertical direction one by one. In this way, it is convenient for the user to quickly and accurately record the specific positions of the planar support column 120, the base block 310 and the connecting column 220 respectively positioned and installed in the positioning holes 1101 of the support base plate 110, that is, to locate them by means of horizontal coordinates and vertical coordinates.

[0080] Furthermore, the user can save time for the subsequent secondary installation of the planar support columns 120, base blocks 310 and connecting columns 220 by tabulating and recording the installation coordinates of the planar support columns 120, base blocks 310 and connecting columns 220 required for positioning different semi-finished die-cast parts, thereby effectively improving the positioning efficiency of the semi-finished die-cast parts.

[0081] like Figure 2 As shown, in one embodiment, the lower end of each of the planar support columns 120 is plugged or threadedly fastened to the support base plate 110. In this way, the convenience of disassembly and assembly of the planar support column 120 is effectively improved. In this embodiment, an external thread portion is formed at the lower end of each of the planar support columns 120, and an internal thread portion is formed in the hole of each of the positioning holes 1101, and the external thread portion is threadedly connected to the internal thread portion. In this way, the stability of the installation of the planar support column 120 can be effectively improved.

[0082] In one of the embodiments, after controlling the laser cutting robot to complete laser cutting, the die-casting forming method further includes: controlling a second robot to grab the die-casting body 01 from the laser cutting platform to a material conveyor belt; controlling the second robot to grab the sprue body 02 from the laser cutting platform to a scrap truck.

[0083] In this embodiment, first, the second robot fixes and grasps the preset grasping position of the die-casting body 01, and then places the die-casting body 01 on the material conveyor belt, and transports the die-casting body 01 to the work station of the subsequent processing process through the material conveyor belt; secondly, the second robot fixes and grasps the preset grasping position of the sprue body 02 and places it on the scrap truck for scrap collection and processing; finally, the second robot automatically resets.

[0084] In one embodiment, after the steps of controlling the second robot to grab the sprue body 02 from the laser cutting platform to the material conveyor belt, and controlling the second robot to grab the sprue body 02 from the laser cutting platform to the scrap truck, the die-casting molding method further includes: cleaning the laser cutting platform and the positioning fixture 10.

[0085] In this embodiment, since dust and debris are inevitably generated during the laser cutting process of the semi-finished die-casting product, dust and debris are accumulated on the laser cutting platform and the positioning fixture 10. In order to solve the above problem, specifically, a suction end of a dust collector is fixedly installed on the table of the laser cutting platform to collect and clean the accumulated dust and debris, effectively reducing the pollution of the working environment by dust and debris and the harm caused to the workers.

[0086] In one of the embodiments, before the step of placing the die casting semi-finished product after removing the slag bag on the laser cutting platform, and after the step of performing a slag bag removal operation on the die casting semi-finished product, the die casting forming method further includes: determining whether there is any slag bag remaining in the die casting semi-finished product; if so, performing a secondary slag bag removal operation on the slag bag of the die casting semi-finished product.

[0087] In this embodiment, an image of a semi-finished die casting after a slag bag removal operation is collected to obtain a slag bag-removed image; the slag bag-removed is processed to obtain an actual slag bag-removed image of the semi-finished die casting after the slag bag removal operation; the actual slag bag-removed image of the semi-finished die casting after the slag bag removal operation is compared with a theoretical image; if the grayscale value difference between the actual slag bag-removed image of the semi-finished die casting after the slag bag removal operation and the theoretical image is less than a preset value, it is determined that there is no slag bag remaining in the semi-finished die casting; otherwise, it is determined that there is a slag bag remaining in the semi-finished die casting.

[0088] The present application also provides a die-casting molding device, which uses the die-casting molding method described in any of the above embodiments to process the die-casting semi-finished product. In this embodiment, the die-casting molding device uses the above die-casting molding method to process the die-casting semi-finished product, which improves the production efficiency of the die-casting and effectively avoids the quality defects of shearing, crushing, cracks and large number of nozzle residues in the die-casting.

[0089] Compared with the prior art, the present invention has at least the following advantages:

[0090] 1. The die-casting forming method disclosed in the present invention first obtains a semi-finished die-casting, and then performs a slag bag removal operation on the semi-finished die-casting so that the semi-finished die-casting after the slag bag removal operation can be accurately positioned when placed on a laser cutting platform, thereby effectively avoiding the problem of positioning deviation of the semi-finished die-casting caused by the slag bag; then the laser cutting robot is controlled to perform laser cutting on the part where the die-casting body is connected to each connecting branch along the laser cutting path, so that each connecting branch is separated from the outer side wall of the die-casting body, thereby realizing the removal of the water nozzle on the die-casting.

[0091] 2. Compared with the traditional method of mechanically shearing the nozzle part of the die casting with a shearing die, the die casting forming method disclosed in the present invention greatly shortens the initial debugging period, improves the production efficiency of the die casting, and makes the part where the die casting body is connected to each connecting branch smoother after laser cutting, effectively avoiding the quality defects of shearing damage, cracks and a large number of nozzle residues in the die casting.

[0092] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A die casting forming method, characterized in that: include: Obtain semi-finished die casting products; Performing a slag removal operation on the semi-finished die casting product; Placing the semi-finished die casting after removing the slag bag on a laser cutting platform, the semi-finished die casting comprises a die casting body, a nozzle body and a plurality of connecting branches, the nozzle body is connected to the outer side wall of the die casting body through the plurality of connecting branches, and the plurality of connecting branches are sequentially arranged along the circumferential laser cutting path of the outer side wall of the die casting body; The laser cutting robot is controlled to perform laser cutting on the portion where the die casting body is connected to each of the connecting branches along the laser cutting path.

2. The die casting forming method according to claim 1, characterized in that: The steps of obtaining the semi-finished die casting part are specifically as follows: filling the molding cavity of the die casting mold with molten metal liquid, waiting for the molten metal liquid to solidify and cool, and then opening and demolding the die casting mold to obtain the semi-finished die casting part.

3. The die casting forming method according to claim 1, characterized in that: Before the step of removing the slag bag from the semi-finished die casting, the die casting forming method further comprises: The die casting semi-finished product after demoulding is grabbed by the first robot and placed on the slag bag removal station.

4. The die casting forming method according to claim 1, characterized in that: The step of performing a slag removal operation on the semi-finished die casting part is specifically: performing a slag removal operation on the semi-finished die casting part by using a pneumatic hammer.

5. The die casting forming method according to claim 1, characterized in that: The step of placing the semi-finished die-casting part after the slag bag is removed on the laser cutting platform is specifically: the semi-finished die-casting part after the slag bag is removed is grabbed by the first robot and placed on the positioning fixture of the laser cutting platform for positioning.

6. The die casting forming method according to claim 5, characterized in that: After controlling the laser cutting robot to complete laser cutting, the die casting forming method further includes: Controlling the second robot to grab the die-casting body from the laser cutting platform to the material conveyor belt; The second robot is controlled to grab the nozzle body from the laser cutting platform to a scrap truck.

7. The die casting forming method according to claim 6, characterized in that: After the steps of controlling the second robot to grab the nozzle body from the laser cutting platform to the material conveyor belt, and controlling the second robot to grab the nozzle body from the laser cutting platform to the scrap car, the die casting molding method further includes: Clean the laser cutting platform and the positioning fixture.

8. The die casting forming method according to claim 1, characterized in that: Before the step of placing the die casting semi-finished product after the slag bag is removed on the laser cutting platform, and after the step of removing the slag bag from the die casting semi-finished product, the die casting forming method further includes: It is determined whether there is any slag bag remaining in the semi-finished die casting product; if so, the slag bag of the semi-finished die casting product is subjected to a secondary slag bag removal operation.

9. The die casting forming method according to claim 1, characterized in that: Before the step of controlling the laser cutting robot to laser cut the portion of the die casting body connected to each of the connecting branches along the laser cutting path, and after the step of placing the die casting semi-finished product after the slag bag is removed on the laser cutting platform, the die casting forming method further includes: Obtain control instructions for the laser cutting path.

10. A die casting molding device, characterized in that: The die casting semi-finished product is processed by the die casting forming method described in any one of claims 1 to 9.

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