Operation method for improving design change precision of irregular lost foam model surface

Abstract

The invention provides an operation method for improving design change precision of an irregular lost foam profile, which comprises the following steps: a processing machine and an operation table top for processing design change work of the lost foam profile, the surface of the processing machine comprises a magnetic suction operation surface and a processing portal frame, and an operation manipulator is slidably mounted at the upper end of the portal frame; the foam bottom support is used for fixing the position of the evanescent mode and preventing the evanescent mode from shifting, a plurality of positioning pin holes are formed in the surface of the foam bottom support, and powerful magnetic attraction blocks are installed on the periphery of the foam bottom support; the method further comprises the following steps that a matched foam bottom support conforming to the evanescent mode is arranged, and an irregularly-matched foam bottom support is manufactured; according to the invention, the problem is solved through the operation method of manufacturing the foam bottom support to confirm the processing reference and processing the design change by the processing machine, and the design size is consistent with the actual size. Therefore, according to the process, the production cost is reduced, the cutter is protected, and the machining quality is also ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of lost foam casting, in particular to an operation method for improving the design change accuracy of irregular lost foam model surface. Background Art

[0002] The lost foam casting method is a method of casting a casting by burying a mold made by coating the surface of a foaming mold with a mold coating agent in the molding sand, and then pouring molten metal into the mold to make the foaming mold disappear and replace it with the molten metal. This lost foam casting method is considered to be the most suitable method for casting complex castings.

[0003] During the production of irregular lost foam, the design data of the mold surface changes. However, the lost foam has been completed, so it is necessary to manually modify the surface of the lost mold after completion to keep it consistent with the data. Otherwise, after the lost foam is completed, it cannot be put into use because it does not meet the design requirements and there is a risk of tool collision during processing. This affects production costs, damages tools, and affects product processing quality.

[0004] The existing operation method is usually that on-site operators manually cut or add to the changed parts of the profile according to the data. Since most of the profiles are uneven curved surfaces, the technical requirements are particularly high, and it is difficult to ensure the processing accuracy. It is easy for the actual size after manual change to be different from the designed size.

[0005] In summary, the present invention provides a method for improving the accuracy of design changes of irregular vanishing model surfaces to solve the above-mentioned problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an operating method for improving the design change accuracy of irregular vanishing model surfaces, so as to solve the problems in the prior art that most of the surfaces are uneven curved surfaces, which have particularly high technical requirements, are difficult to guarantee in terms of processing accuracy, and are prone to differences between the actual dimensions after manual changes and the designed dimensions.

[0007] A method for improving the accuracy of design changes of irregular vanishing model surfaces, comprising the following:

[0008] A processing machine, an operating table for processing the design change operation of the design disappearing model surface, the surface of the processing machine includes a magnetic suction operating surface and a processing gantry, and an operating manipulator is slidably installed on the upper end of the gantry;

[0009] The foam base is used to fix the position of the lost foam to prevent the lost foam from shifting. The surface of the foam base is provided with a plurality of positioning pin holes, and strong magnetic blocks are installed around the foam base;

[0010] The following steps are also included:

[0011] Set up a matching foam base that matches the lost foam, make an irregular matching foam base, and design the foam base according to the shape of the lost foam to determine the processing benchmark;

[0012] Place the foam base on the surface of the processing machine using the strong magnetic blocks on both sides;

[0013] Fix the bottom of the lost foam on the foam base, run the processing machine, and the processing machine processes the changed part of the lost foam according to the reference of the foam base.

[0014] Furthermore, a plurality of positioning pins are installed on the operating surface of the processing machine, and the positioning pins and the positioning pin holes are arranged in a one-to-one correspondence, and the sizes of the positioning pin holes and the positioning pins match each other.

[0015] Furthermore, the processing machine also includes a model processing system, wherein the model processing system includes:

[0016] Positioning detection module: It is set on the gantry of the processing machine and electrically connected to the controller, and is used to perform positioning detection on the lost foam to be processed and send the detection signal to the controller;

[0017] Model detection module: arranged on the operating surface of the processing machine and electrically connected to the controller, used to detect whether there is lost foam to be processed on the operating surface, and send a detection signal to the controller;

[0018] Gantry control module: electrically connected to the controller, controls the movement of the gantry on the processing machine, and moves the gantry above the lost foam to be processed;

[0019] Manipulator control module: electrically connected to the controller, used to process the changed part of the lost foam placed on the operating surface;

[0020] Controller: electrically connected to the positioning detection module, the model detection module, the gantry control module and the control valve, used to set the working path, control the gantry to complete the movement according to the detection signal, and use the manipulator to process the changed part of the lost foam, and control the opening and closing of the control valve according to the detection signal.

[0021] Furthermore, the controller controls the robot to complete the operation of changing the processing position according to the detection signal.

[0022] Furthermore, the operating robot is slidably connected to the gantry by means of a robot operating lead screw, and a processing grinding head is installed at one end of the operating robot.

[0023] Furthermore, the two ends of the gantry are driven to slide by gantry operating screws, the gantry operating screws are installed on both sides of the operating surface, and the operating state of the screws is controlled by a servo motor.

[0024] Furthermore, a lost foam inner groove is provided in the middle of the foam base, and the lost foam inner groove is matched with the size of the bottom of the lost foam.

[0025] Furthermore, the bottom of the lost foam is arranged in the lost foam inner groove of the foam base, and the bottom of the lost foam is in contact with the surface of the processing machine.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention solves the above problems by making a foam base to confirm the processing benchmark and using the processing machine to handle the design change operation method, so that the design size is consistent with the actual size. Therefore, this process not only reduces production costs, protects the tool, but also ensures processing quality.

[0028] 2. The present invention makes a positioning base for the irregular lost mold, determines the processing reference, and uses a processing machine to change the mold surface. This reduces the casting surface size deviation, improves the size accuracy of the design change part, greatly improves the quality of the casting workpiece, and ensures the casting quality of the casting workpiece. It can not only greatly reduce the production cost and labor intensity, but also greatly improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of the processing machine of the present invention;

[0030] Figure 2 It is a three-dimensional diagram of the foam base of the present invention;

[0031] Figure 3 It is a flow chart of the method of the present invention.

[0032] In the figure:

[0033] 1. Processing machine; 2. Foam base; 3. Positioning pin hole; 4. Strong magnetic suction block; 5. Lost foam. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] like Figure 1-3 As shown, the present invention provides a method for improving the design change accuracy of irregular vanishing model surfaces, comprising the following:

[0036] Processing machine 1, an operating table for processing the design change operation of the design disappearing model surface, the surface of the processing machine 1 includes a magnetic suction operating surface and a processing gantry, and an operating manipulator is slidably installed on the upper end of the gantry;

[0037] The foam base 2 is used to fix the position of the lost mold 5 to prevent the lost mold 5 from shifting. A plurality of positioning pin holes 3 are provided on the surface of the foam base 2, and strong magnetic blocks 4 are installed around the foam base 2.

[0038] The following steps are also included:

[0039] A matching foam base 2 that matches the lost foam 5 is set, and an irregularly matched foam base 2 is made. The foam base 2 is designed according to the shape of the lost foam 5, and a processing reference is determined;

[0040] The foam base 2 is placed on the surface of the processing machine 1 using the strong magnetic blocks 4 on both sides;

[0041] The bottom of the lost mold 5 is fixed on the foam base 2, and the processing machine 1 is operated. The processing machine 1 processes the changed part of the lost mold 5 according to the reference of the foam base 2.

[0042] As an embodiment of the present invention, a plurality of positioning pins are installed on the operating surface of the processing machine 1. The positioning pins are arranged in a one-to-one correspondence with the positioning pin holes 3, and the sizes of the positioning pin holes 3 match those of the positioning pins.

[0043] As an embodiment of the present invention, the processing machine 1 further includes a model processing system, wherein the model processing system includes:

[0044] Positioning detection module: set on the gantry of the processing machine 1 and electrically connected to the controller, used for positioning detection of the lost foam 5 to be processed, and sending the detection signal to the controller;

[0045] Model detection module: arranged on the operating surface of the processing machine 1 and electrically connected to the controller, used to detect whether there is a lost foam 5 to be processed on the operating surface, and send a detection signal to the controller;

[0046] Gantry control module: electrically connected to the controller, controls the movement of the gantry on the processing machine 1, and moves the gantry to the top of the lost foam 5 to be processed;

[0047] Manipulator control module: electrically connected to the controller, used to process the changed part of the lost foam 5 placed on the operating surface;

[0048] Controller: It is electrically connected with the positioning detection module, the model detection module, the gantry control module and the control valve, and is used to set the working path, control the gantry to complete the movement according to the detection signal, and use the manipulator to process the changed part of the lost foam 5, and control the opening and closing of the control valve according to the detection signal.

[0049] As an implementation mode of the present invention, the controller controls the robot to complete the operation of changing the processing position according to the detection signal.

[0050] As an implementation mode of the present invention, the operating manipulator is slidably connected to the gantry by means of a manipulator operating lead screw, and a processing grinding head is installed at one end of the operating manipulator.

[0051] As an implementation mode of the present invention, both ends of the gantry are driven to slide by gantry operating screws, the gantry operating screws are installed on both sides of the operating surface, and the operating state of the screws is controlled by a servo motor.

[0052] As an implementation mode of the present invention, a lost foam inner groove is opened in the middle of the foam base 2, and the lost foam inner groove is matched with the bottom size of the lost foam 5.

[0053] As an embodiment of the present invention, the bottom of the lost mold 5 is arranged in the lost mold inner groove of the foam base 2 , and the bottom of the lost mold 5 is in contact with the surface of the processing machine 1 .

[0054] The present invention solves the above-mentioned problem by making a foam base to confirm the processing benchmark and using a processing machine to handle the design change operation method, so as to achieve the consistency between the design size and the actual size. Therefore, this process not only reduces the production cost, protects the tool, but also ensures the processing quality. By making a positioning base for the irregular lost mold, determining the processing benchmark, and using the processing machine to change the mold surface, the casting surface size deviation is reduced, the dimensional accuracy of the design change part is improved, and the quality of the casting workpiece is greatly improved to ensure the casting quality of the casting workpiece. Not only can the production cost and labor intensity be greatly reduced, but the production efficiency is also greatly improved.

[0055] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A method for improving the accuracy of design changes of irregular vanishing model surfaces, characterized in that: Includes the following: A processing machine (1) is used for processing an operating table for design change operations on a design disappearing model surface. The surface of the processing machine (1) includes a magnetic suction operating surface and a processing gantry. An operating manipulator is slidably mounted on the upper end of the gantry. The foam base (2) is used to fix the position of the lost foam (5) to prevent the lost foam (5) from shifting. The surface of the foam base (2) is provided with a plurality of positioning pin holes (3). Strong magnetic blocks (4) are installed around the foam base (2); The following steps are also included: A matching foam base (2) is provided that matches the lost foam (5), and an irregularly matched foam base (2) is manufactured. The foam base (2) is designed according to the shape of the lost foam (5), and a processing reference is determined; The foam base (2) is placed on the surface of the processing machine (1) using the strong magnetic blocks (4) on both sides; The bottom of the lost foam (5) is fixed on the foam base (2), and the processing machine (1) is operated. The processing machine (1) processes the changed part of the lost foam (5) according to the reference of the foam base (2).

2. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 1, characterized in that: A plurality of positioning pins are installed on the operating surface of the processing machine (1), the positioning pins and the positioning pin holes (3) are arranged in a one-to-one correspondence, and the sizes of the positioning pin holes (3) and the positioning pins match.

3. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 1, characterized in that: The processing machine (1) further comprises a model processing system, wherein the model processing system comprises: Positioning detection module: arranged on the gantry of the processing machine (1) and electrically connected to the controller, used for performing positioning detection on the lost foam (5) to be processed and sending the detection signal to the controller; A model detection module is arranged on the operating surface of the processing machine (1) and is electrically connected to the controller, and is used to detect whether there is a lost foam (5) to be processed on the operating surface, and send a detection signal to the controller; Gantry control module: electrically connected to the controller, controlling the movement of the gantry on the processing machine (1), and moving the gantry to the top of the lost foam (5) to be processed; A manipulator control module is electrically connected to the controller and is used to process the changed part of the lost foam (5) placed on the operation surface; The controller is electrically connected to the positioning detection module, the model detection module, the gantry control module and the control valve, and is used to set the working path, control the gantry to complete the movement according to the detection signal, and use the manipulator to process the changed part of the lost foam (5), and control the opening and closing of the control valve according to the detection signal.

4. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 3, characterized in that: The controller controls the robot to complete the operation of changing the processing position according to the detection signal.

5. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 1, characterized in that: The operating manipulator is slidably connected to the gantry by means of a manipulator operating lead screw, and a processing grinding head is installed at one end of the operating manipulator.

6. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 1, characterized in that: The two ends of the gantry are driven to slide by gantry operating screws, the gantry operating screws are installed on both sides of the operating surface, and the running state of the screws is controlled by a servo motor.

7. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 1, characterized in that: The middle of the foam base (2) is provided with an expended foam inner groove, and the expended foam inner groove is arranged to match the size of the bottom of the expended foam (5).

8. The method for improving the design change accuracy of the irregular vanishing model surface according to claim 7, characterized in that: The bottom of the lost mold (5) is arranged in the lost mold inner groove of the foam base (2), and the bottom of the lost mold (5) is in contact with the surface of the processing machine (1).

Images