Sand core trimming device and sand core trimming robot system

Abstract

The application provides a sand core repairing device and a sand core repairing robot system, and belongs to the technical field of sand core manufacturing. The sand core repairing device comprises a core repairing positioning mold and a sand core lifting mechanism. The core repairing positioning mold is suitable for positioning the sand core at a first core repairing station, so that the sand core repairing robot removes the high points of the upper plane of the sand core; and the sand core lifting mechanism is suitable for lifting the sand core to a preset height at a second core repairing station, so that the sand core repairing robot removes the high points of the lower plane of the sand core. The sand core repairing device provided by the application can realize the automation of core repairing, improve the core repairing efficiency, and improve the core repairing quality.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sand core manufacturing, and particularly relates to a sand core repairing device and a sand core repairing robot system. BACKGROUND

[0002] The sand core is a solid structure with a special shape formed by mixing foundry sand, resin and some auxiliary materials in a certain proportion, and is used to form the inner cavity, hole and part of the outer shape of the casting which cannot be sanded. During the sand core forming process, a sand core high point is formed, which refers to a high point higher than the sand core plane formed by the exhaust plug and the top core rod height being lower than the sand core plane or the mold parting surface. If it is not removed, it will easily form defects such as material shortage of the casting. Therefore, the sand core needs to be repaired.

[0003] In the related art, manual repairing is mainly used. After the sand core is made, the sand core is transported to the equipment, and the sand core is taken out manually. After the sand core is taken out, it is placed in a tray, and then the sand core is repaired manually. This repairing method needs to manually turn over the sand core and grind the parting seam on the sand core. The repairing efficiency is low, and the repairing quality is difficult to guarantee. SUMMARY

[0004] In order to solve at least one aspect of the technical problems in the background art, the application provides a sand core repairing device, which can realize the automation of repairing, improve the repairing efficiency, and improve the repairing quality.

[0005] The second aspect embodiment of the application provides a sand core repairing robot system.

[0006] The technical scheme adopted by the application is:

[0007] The first aspect embodiment of the application provides a sand core repairing device, which comprises:

[0008] The sand core repairing device further comprises a repairing positioning fixture, which is suitable for positioning the sand core at the first repairing station, so that the sand core repairing robot removes the high point of the upper plane of the sand core.

[0009] The sand core repairing device further comprises a sand core lifting mechanism, which is suitable for lifting the sand core to a preset height at the second repairing station, so that the sand core repairing robot removes the high point of the lower plane of the sand core.

[0010] According to the sand core repairing device provided by the first aspect of the application, when the tray with the sand core enters the first repairing station, the sand core positioning fixture starts to work to fix the sand core, at this time, the sand core repairing robot can perform repairing work, and they can remove the high points on the upper surface of the sand core within the beat time; after the high points on the upper surface are removed, the tray moves to the second repairing station, the sand core lifting mechanism starts to work here to lift the sand core to a certain height, and then the sand core repairing robot starts to work to remove the high points on the lower surface of the sand core. During the above repairing process, through the positioning of the sand core positioning fixture and the accurate lifting of the sand core lifting mechanism, the sand core repairing robot can accurately aim at the removal area on the sand core, ensure the accuracy and consistency of the repairing operation, improve the sand core repairing quality, and realize the automation of the sand core repairing process, greatly improve the work efficiency, and through the cooperation among the sand core positioning fixture, the sand core lifting mechanism and the sand core repairing robot, the high points on the upper and lower surfaces of the sand core can be removed in all directions, and it is ensured that each surface of the sand core reaches the high quality standard. In summary, the sand core repairing device provided by the application has the characteristics of automation, all-directional high point removal and on-line repairing, greatly optimizes the sand core repairing process, improves the sand core repairing efficiency and the sand core repairing quality, and finally improves the product quality of the sand core.

[0011] According to one embodiment of the application, the sand core positioning fixture comprises a first supporting base, a second supporting base, a first clamp and a second clamp;

[0012] The first clamp is arranged on the first supporting base, and the second clamp is arranged on the second supporting base;

[0013] A connecting rod is arranged between the first supporting base and the second supporting base.

[0014] The first supporting base and the second supporting base are symmetrically distributed left and right.

[0015] According to one embodiment of the application, the first clamp and the second clamp each comprise a driving cylinder, a cylinder connecting shaft and a positioning chuck, the driving cylinder drives the positioning chuck to clamp the positioning column of the sand core through the cylinder connecting shaft;

[0016] Among the first clamp and the second clamp, at least one of them has a number of positioning chucks not less than two.

[0017] According to one embodiment of the application, the positioning chuck is of a V-shaped structure.

[0018] According to one embodiment of the application, the sand core lifting mechanism comprises a lifting frame, a lifting cylinder and a lifting clamp;

[0019] The lifting cylinder and the lifting clamp are arranged on the lifting frame.

[0020] The lifting cylinder is suitable for driving the Z-direction movement of the lifting clamp.

[0021] According to one embodiment of the present application, a guide rod is arranged on the lifting frame, the guide rod is arranged through the lifting clamp, and the extension direction of the guide rod is consistent with the movement direction of the lifting clamp.

[0022] According to one embodiment of the present application, the guide rod is arranged through four corner portions of the lifting clamp, and an end portion of the guide rod is provided with a limiting ring.

[0023] According to one embodiment of the present application, a leveling bolt is arranged at the bottom of the lifting frame.

[0024] According to one embodiment of the present application, the lifting clamp comprises a lifting clamp head and a clamp head elastic washer, and the clamp head elastic washer is arranged on the lifting clamp head.

[0025] The second aspect embodiment of the present application provides a sand core repairing robot system, which comprises the sand core repairing device in any one of the first aspect embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0027] Figure 1 A structural schematic view of the core repairing positioning mold provided by the embodiment of the present application is shown in the drawings;

[0028] Figure 2 A Figure 1 A top view of the core repairing positioning mold is shown in the drawings;

[0029] Figure 3 A structural schematic view of the sand core lifting mechanism provided by the embodiment of the present application is shown in the drawings;

[0030] Figure 4 A Figure 3 A side view of the sand core lifting mechanism is shown in the drawings.

[0031] Wherein,

[0032] 1, core repairing positioning mold; 11, first support base; 12, second support base; 13, first clamp; 14, second clamp; 15, connecting rod; 16, driving cylinder; 17, cylinder connecting shaft; 18, positioning clamp head;

[0033] 2, sand core lifting mechanism; 21, lifting frame; 22, lifting cylinder; 23, lifting clamp; 24, guide rod; 25, limiting ring; 26, leveling bolt; 27, lifting chuck; 28, chuck elastic washer. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0035] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description, and that the scope of the present application is not limited to the details in the following description. It is to be noted that, in the following description, well-known functions or constructions are not described in detail because they would obscure the application in unnecessary detail.

[0036] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] AsFigures 1 to 4 As shown, the first aspect of the present application provides a sand core trimming device, which comprises a trimming positioning mold 1 and a sand core lifting mechanism 2. The trimming positioning mold 1 is suitable for positioning the sand core at the first trimming station, so that the sand core trimming robot can remove the high points on the upper plane of the sand core; the sand core lifting mechanism 2 is suitable for lifting the sand core to a preset height at the second trimming station, so that the sand core trimming robot can remove the high points on the lower plane of the sand core.

[0040] The trimming positioning mold 1 is a positioning tool specially designed for the sand core trimming process, which ensures that the sand core can be accurately positioned during the trimming process, facilitating the sand core trimming robot to remove the high points. The sand core lifting mechanism 2 can lift the sand core from one plane to another, so that the sand core trimming robot can trim different surfaces of the sand core, especially the bottom surface of the sand core. In addition, two or more sand core trimming robots can be arranged at the first trimming station to remove the high points, thereby improving the trimming efficiency. Similarly, two or more sand core trimming robots can also be arranged at the second trimming station to remove the high points, thereby improving the trimming efficiency.

[0041] According to the sand core trimming device provided by the first aspect of the present application, when the tray with the sand core enters the first trimming station, the trimming positioning mold 1 starts to work to position and fix the sand core. At this time, the sand core trimming robots can perform trimming work, and they remove the high points on the upper plane of the sand core within the beat time. After completing the removal of the high points on the upper plane, the tray moves to the second trimming station, and the sand core lifting mechanism 2 starts to work here to lift the sand core to a certain height. Then, the sand core trimming robots start to work to remove the high points on the lower plane of the sand core. In the above trimming process, through the positioning of the trimming positioning mold 1 and the accurate lifting of the sand core lifting mechanism 2, the sand core trimming robots can accurately aim at the removal area on the sand core, ensuring the accuracy and consistency of the trimming operation, improving the sand core trimming quality, and realizing the automation of the sand core trimming process. The whole process greatly improves the work efficiency. Through the cooperation among the trimming positioning mold 1, the sand core lifting mechanism 2 and the sand core trimming robots, the high points on the upper and lower planes of the sand core are removed in all directions, ensuring that each surface of the sand core reaches the high-quality standard. In summary, the sand core trimming device provided by the present application has the characteristics of automation, all-directional removal of high points and online trimming, greatly optimizes the sand core trimming process, improves the sand core trimming efficiency and quality, and ultimately improves the product quality of the sand core.

[0042] In addition, automation replaces manual operation, saves time and improves production efficiency, which can significantly shorten the production cycle in batch production of sand cores.

[0043] As Figures 1 to 2As shown, in some embodiments of the present application, a core repair positioning jig 1 includes a first support base 11, a second support base 12, a first clamp 13, and a second clamp 14. The first clamp 13 is mounted on the first support base 11, and the second clamp 14 is mounted on the second support base 12. A connecting rod 15 is disposed between the first and second support bases 11, 12. The first and second support bases 11, 12 are symmetrically arranged. The first clamp 13 and the second clamp 14 are mounted on the first and second support bases 11, 12, respectively, and connected by the connecting rod 15, forming a single, integrated structure. The symmetrical arrangement of the first and second support bases 11, 12, and the clamps, combined with the stabilizing effect of the connecting rod 15, ensures the overall balance and rigidity of the core repair positioning jig 1, preventing the sand core from shifting or vibrating during positioning, thereby improving the accuracy of core positioning. This symmetrical design allows it to accommodate sand cores of varying sizes and shapes, enhancing the versatility and flexibility of the core repair positioning jig 1. During the core repair process, the sand core is placed on the core repair positioning jig 1, and the first clamp 13 and the second clamp 14 can quickly clamp the positioning column of the sand core to fix the sand core. This positioning method is fast and accurate, avoiding errors that may occur during manual operation and improving the efficiency and accuracy of core repair.

[0044] like Figures 1 to 2 As shown, in some embodiments of the present application, the first clamp 13 and the second clamp 14 both include a driving cylinder 16, a cylinder connecting shaft 17 and a positioning chuck 18, and the driving cylinder 16 drives the positioning chuck 18 through the cylinder connecting shaft 17 to clamp the positioning column of the sand core; wherein, at least one of the first clamp 13 and the second clamp 14 has no less than two positioning chucks 18.

[0045] The driving cylinder 16, usually referred to as a pneumatic cylinder, is a common actuator in a pneumatic system, used to convert the energy of compressed air into linear or swinging motion. The movement of the driving cylinder 16 can be easily controlled by a control device such as a solenoid valve and an air pressure regulator, so as to achieve rapid start, stop, and adjustment of movement speed and force. In the embodiment of the present application, the driving cylinder 16 drives the positioning chuck 18 to clamp the positioning column of the sand core through the cylinder connecting shaft 17. The clamping force of the positioning chuck 18 can be precisely controlled to ensure that the positioning column of the sand core is securely fixed, thereby avoiding any movement of the sand core during the core repair process, thereby ensuring the accuracy and quality of the core repair.

[0046] Further, an air pressure regulator can be provided, through which the output force of the driving air cylinder 16 can be adjusted according to the specific situation of the sand core, avoiding excessive clamping damage to the sand core, while also ensuring sufficient clamping force to prevent displacement of the sand core during the core repair process. The action of the driving air cylinder 16 can be fully controlled automatically by a control device such as a solenoid valve, reducing manual intervention, achieving automation of the sand core repair process, reducing labor intensity, and improving production safety. The driving air cylinder 16 can be a single-acting cylinder, a double-acting cylinder, a rodless cylinder, etc.

[0047] In addition, by using multiple positioning clamps 18, the stability of the sand core during the core repair process is significantly improved, avoiding the sand core from shifting or shaking due to single-point clamping. Multi-point clamping can ensure that the position of the sand core on the core repair positioning fixture 1 is more accurate, which is beneficial for the sand core repair robot to perform high-precision core repair operations. The use of multiple positioning clamps 18 disperses the pressure on the sand core, reducing the damage that may be caused to the sand core by excessive local pressure. The design of multiple positioning clamps 18 enables the sand core repair device to adapt to sand cores of different sizes and shapes, improving the versatility and flexibility of the sand core repair device.

[0048] In some embodiments of the present application, the positioning clamp 18 is of V-shaped structure. The positioning clamp 18 adopts a V-shaped cross section, which can better fit the positioning column of the sand core, provide stable clamping force, and prevent the sand core from shifting during the core repair process. The V-shaped positioning clamp 18 can quickly find and clamp the sand core positioning column, achieve rapid positioning and fixation through the driving of the driving air cylinder 16, and improve the efficiency of sand core repair. The V-shaped positioning clamp 18 can also adapt to sand core positioning columns of different sizes and shapes, improving the versatility and flexibility of the sand core repair device.

[0049] Further, an elastic washer can be provided on the positioning clamp 18 to buffer the impact of the sand core during clamping, preventing the sand core from being damaged due to excessive clamping force during lifting and core repair.

[0050] As Figures 3 to 4As shown, in some embodiments of the present application, the sand core lifting mechanism 2 comprises a lifting frame 21, a lifting cylinder 22 and a lifting clamp 23; the lifting cylinder 22 and the lifting clamp 23 are both arranged on the lifting frame 21; the lifting cylinder 22 is suitable for driving the lifting clamp 23 to move in the Z direction. The lifting frame 21 is the basis of the entire sand core lifting mechanism 2, used for bearing and fixing the lifting cylinder 22 and the lifting clamp 23, ensuring the stability and structural rigidity of the sand core lifting mechanism 2 during operation. The lifting cylinder 22 is installed on the lifting frame 21 and is the power source of the lifting mechanism. It can drive the lifting clamp 23 to move up and down along the Z-axis direction through linear motion, realizing the vertical lifting of the sand core. The operation of the lifting cylinder 22 is stable, which can ensure the safety and stability of the sand core during lifting. The lifting clamp 23 is also fixed on the lifting frame 21 and connected with the lifting end of the lifting cylinder 22.

[0051] The entire sand core lifting mechanism 2 drives the lifting clamp 23 to move vertically in the Z-axis direction through the linear motion of the lifting cylinder 22, thereby realizing the stable lifting of the sand core, so as to facilitate the sand core trimming robot to clean the high points of the lower plane of the sand core.

[0052] As shown, Figures 3 to 4 In some embodiments of the present application, a guide rod 24 is arranged on the lifting frame 21, the guide rod 24 penetrates the lifting clamp 23, and the extension direction of the guide rod 24 is consistent with the movement direction of the lifting clamp 23. The design of the guide rod 24 on the lifting frame 21 can ensure the stable operation and accurate positioning of the lifting clamp 23 during lifting the sand core. The guide rod 24 penetrates the lifting clamp 23, and its extension direction is consistent with the movement direction of the lifting clamp 23, which can limit the lateral displacement of the lifting clamp 23 when lifting the sand core, and only allow it to move up and down in a straight line. The guide rod 24 limits the movement freedom of the lifting clamp 23, avoiding the shaking of the sand core during lifting, ensuring the stability and safety of the sand core. The guide rod 24 ensures the linear motion of the lifting clamp 23 according to the preset path, improves the accuracy and efficiency of the motion, and guarantees the all-round trimming of the sand core.

[0053] As shown, Figures 3 to 4As shown, in some embodiments of the present application, the guide rods 24 are passed through the four corners of the lifting fixture 23, and the ends of the guide rods 24 are provided with limit rings 25. The guide rods 24 at the four corners can provide all-round support and guidance, ensuring the stable movement of the lifting fixture 23 in the vertical direction, reducing shaking and deflection, and making the sand core more stable during the lifting process. The guide rods 24 at the four corners can evenly distribute the load when lifting the sand core, avoiding a single point or a few points bearing too much weight, thereby reducing stress concentration in the mechanical structure and extending the service life of the equipment. The limit ring 25 can prevent the lifting fixture 23 from exceeding the predetermined range of motion during the lifting process, avoiding mechanical collision or sand core damage caused by excessive lifting.

[0054] like Figures 3 to 4 As shown, in some embodiments of the present application, a leveling bolt 26 is provided at the bottom of the lifting frame 21. The leveling bolt 26 allows the operator to fine-tune the levelness of the lifting frame 21, ensuring that the lifting frame 21 is in a completely horizontal state, thereby ensuring that the lifting clamp 23 is level and preventing the clamped sand core from tilting. By adjusting the leveling bolt 26, it is possible to compensate for uneven ground or slight changes in the foundation structure, thereby improving the overall stability of the sand core lifting mechanism 2, reducing vibration and shaking, and adapting to various ground conditions. Whether it is hard or soft ground, the level state of the lifting clamp 23 can be maintained by adjusting the bolt.

[0055] like Figures 3 to 4 As shown, in some embodiments of the present application, the lifting clamp 23 includes a lifting clamp 27 and a clamp elastic washer 28, and the clamp elastic washer 28 is provided on the lifting clamp 27. The clamp elastic washer 28 can buffer the impact force of the sand core during the clamping and releasing process, and prevent the sand core from being damaged, especially for relatively fragile or complex sand core structures. The softness of the clamp elastic washer 28 can adapt to the irregularities of the sand core surface, provide better fit and grip, ensure the stability of the sand core during the lifting process, and reduce the risk of the sand core falling. The clamp elastic washer 28 forms a protective layer between the contact surface of the clamp and the sand core, reducing the direct friction between metal and metal, reducing the wear rate of the lifting clamp 27, and extending the service life of the equipment.

[0056] Furthermore, the chuck elastic washer 28 is usually a wearing part and can be designed to be replaceable to facilitate daily maintenance and replacement, thereby reducing maintenance costs and downtime.

[0057] A second aspect of the present application provides a sand core repair robot system, comprising the sand core repair device of any one of the embodiments of the first aspect.

[0058] According to the sand core repairing robot system provided by the second aspect of the application, when the tray with the sand core enters the first repairing station, the repairing positioning mold 1 starts to work to fix the sand core, and at this time, the sand core repairing robot can perform the repairing operation, and they remove the high points on the upper surface of the sand core within the beat time; after the high points on the upper surface are removed, the tray moves to the second repairing station, the sand core lifting mechanism 2 is started to lift the sand core to a certain height, and then the sand core repairing robot starts to work to remove the high points on the lower surface of the sand core. In the above repairing process, through the positioning of the repairing positioning mold 1 and the accurate lifting of the sand core lifting mechanism 2, the sand core repairing robot can accurately aim at the removal area on the sand core, ensure the accuracy and consistency of the repairing operation, improve the sand core repairing quality, and realize the automation of the sand core repairing process, greatly improve the work efficiency, and through the cooperation among the repairing positioning mold 1, the sand core lifting mechanism 2 and the sand core repairing robot, the high points on the upper and lower surfaces of the sand core are removed in all directions, and it is ensured that each surface of the sand core reaches the high quality standard. In summary, the sand core repairing robot system provided by the application has the characteristics of automation, all-directional high point removal and on-line repairing, greatly optimizes the sand core repairing process, improves the sand core repairing efficiency and the sand core repairing quality, and finally improves the product quality of the sand core.

[0059] The places not described in the application can be realized by using or referring to the existing technology.

[0060] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0061] The above only describes the embodiments of the application and is not used to limit the application. The application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the scope of the claims of the application.

Claims

1. A core dressing apparatus characterized by, The sand core positioning fixture (1) is suitable for positioning the sand core at a first sand core repairing station to enable a sand core repairing robot to perform high point cleaning on the upper plane of the sand core. The sand core lifting mechanism (2) is suitable for lifting the sand core to a preset height at a second sand core repairing station to enable the sand core repairing robot to perform high point cleaning on the lower plane of the sand core. The sand core positioning fixture (1) comprises a first support base (11), a second support base (12), a first clamp (13) and a second clamp (14). The first clamp (13) is arranged on the first support base (11), and the second clamp (14) is arranged on the second support base (12). A connecting rod (15) is arranged between the first support base (11) and the second support base (12). The first support base (11) and the second support base (12) are symmetrically distributed left and right. The first clamp (13) and the second clamp (14) each comprise a driving cylinder (16), a cylinder connecting shaft (17) and a positioning chuck (18), the driving cylinder (16) drives the positioning chuck (18) to clamp the positioning column of the sand core through the cylinder connecting shaft (17). Among the first clamp (13) and the second clamp (14), at least one of the positioning chucks (18) is not less than two in number. The positioning chuck (18) is of a V-shaped structure. The sand core lifting mechanism (2) comprises a lifting frame (21), a lifting cylinder (22) and a lifting clamp (23). The lifting cylinder (22) and the lifting clamp (23) are arranged on the lifting frame (21). The lifting cylinder (22) is suitable for driving the lifting clamp (23) to move in the Z direction. A guide rod (24) is arranged on the lifting frame (21), the guide rod (24) penetrates the lifting clamp (23), and the extension direction of the guide rod (24) is consistent with the movement direction of the lifting clamp (23). The guide rod (24) penetrates four corner parts of the lifting clamp (23), and the end of the guide rod (24) is provided with a limiting ring (25).

2. The core dressing apparatus of claim 1 wherein, The bottom of the lifting frame (21) is provided with a leveling bolt (26).

3. The core dressing apparatus of claim 2 wherein, The lifting clamp (23) comprises a lifting chuck (27) and a chuck elastic gasket (28), and the chuck elastic gasket (28) is arranged on the lifting chuck (27).

4. The core dressing apparatus of claim 2 wherein, The sand core repairing device comprises the sand core positioning fixture according to any one of claims 1 to 4.

5. A sand core reworking robot system, characterized in that ​

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