Core finishing tool and finishing and carrying device

Abstract

The utility model discloses a core finishing tool and a finishing and carrying device, and belongs to the field of sand core finishing. The core finishing tool comprises a main shaft; the inner shell is connected with the main shaft through a first elastic piece, and the first elastic piece drives the inner shell to rotate and reset in the circumferential direction of the main shaft; the outer shell is in sliding connection with the inner shell through a second elastic piece, and the second elastic piece drives the outer shell to move and reset in the axial direction of the inner shell; and the grinding body is connected with the shell. The core finishing tool is provided, manual operation is reduced, and the quality and consistency of the sand core are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand core dressing, in particular to a core dressing tool and a dressing and transporting device. Background Art

[0002] In casting production, after the sand core is formed, there will be obvious blank seams on the parting surface. Generally, the sand core must be trimmed to remove the blank seams on the sand core to ensure the quality of the sand core and obtain good casting quality. At present, the trimming of sand cores is mainly done manually. Manual trimming has low efficiency, great randomness, and poor consistency of sand cores.

[0003] After dipping, the sand core will enter the drying furnace to dry the coating, and then be transferred to the vertical warehouse conveyor line for storage. The sand core can be automatically transferred from the drying furnace to the vertical warehouse using robots and special fixtures.

[0004] A core repairing tool is now proposed to reduce manual operations and improve the quality and consistency of sand cores. Utility Model Content

[0005] The main purpose of the utility model is to provide a core dressing tool and a dressing and transporting device, aiming at improving the consistency of the sand core after core dressing.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a core repairing tool, which comprises:

[0007] Spindle;

[0008] An inner shell, wherein the inner shell is connected to the main shaft via a first elastic member, and the first elastic member drives the inner shell to rotate and reset along the circumference of the main shaft;

[0009] An outer shell, wherein the outer shell is slidably connected to the inner shell via a second elastic member, and the second elastic member drives the outer shell to move along the axial direction of the inner shell and reset;

[0010] A grinding body is connected to the shell.

[0011] Optionally, in an embodiment of the utility model, the second elastic member includes an inner sleeve and a spring, two inner sleeves are provided, the two inner sleeves cooperate to connect the inner shell and the outer shell, the two inner sleeves are connected by the spring and there is a gap between the two inner sleeves.

[0012] Optionally, in an embodiment of the present invention, the first elastic member is an elastic rubber pad.

[0013] Optionally, in an embodiment of the present utility model, the grinding body comprises:

[0014] Grinding rods;

[0015] A connecting rod, wherein two connecting rods are provided, one end of the connecting rod is connected to the shell, and the other end of the connecting rod exceeds the shell by a predetermined distance and is connected to the grinding rod.

[0016] Optionally, in an embodiment of the utility model, the main shaft is provided with a limiting groove, and the inner shell is arranged in the limiting groove through the first elastic member.

[0017] In order to achieve the above-mentioned purpose, the present invention further provides a trimming and transporting device, which comprises:

[0018] Robotic arm;

[0019] A fixture connected to the mechanical arm;

[0020] A core repairing tool is connected to the fixture, and the core repairing tool is the core repairing tool described above.

[0021] Optionally, in an embodiment of the present invention, the clamp and the core repairing tool are arranged vertically.

[0022] Optionally, in an embodiment of the present utility model, the clamp comprises:

[0023] A slide rail, on which the core repairing tool is installed;

[0024] A clamping jaw is slidably connected to the slide rail, a rubber pad is provided on the inner side of the clamping jaw, and the clamping jaw is arranged vertically to the core repairing tool.

[0025] Optionally, in an embodiment of the present invention, a positioning piece is further provided on the inner side of the clamping jaw.

[0026] Optionally, in an embodiment of the present utility model, the trimming and handling device further includes a driving device, the clamping jaw is connected to the slide rail via a guide rail slider, and the driving device drives the clamping jaw.

[0027] Compared with the prior art, the utility model can at least achieve the following beneficial effects. The technical solution of the utility model is designed to be slidably connected with the outer shell, and the two are connected by a second elastic member, so that the grinding body can move within a certain range along the axial direction of the outer shell under the action of external force (the force generated after the grinding body contacts the sand core), and the second elastic member is used to achieve reset after movement. In the process of core repair, the second elastic member can also ensure that the grinding body can fit tightly on the finishing surface of the sand core to complete the repair of the embryo seam. The inner shell is connected to the main shaft through the first elastic member, so that the grinding body can rotate within a certain range along the circumference of the main shaft under the action of external force, and can be reset after the external force disappears. In addition, the core repair tool includes a main shaft, and the core repair tool can be installed on different drive devices through the main shaft to complete the core repair work. This solution reduces manual core repair and improves the consistency of the sand core after repair by proposing a core repair tool. In addition, the core repair tool proposed in this solution can complete the floating of the grinding body in two directions, realize floating core repair, and improve the repair effect of the sand core. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 This is a structural schematic diagram of an embodiment of a core repairing tool of the utility model;

[0030] Figure 2 This is a cross-sectional view of a core repairing tool of the utility model;

[0031] Figure 3 It is a side view of a core repairing tool of the utility model;

[0032] Figure 4 It is a structural schematic diagram of an embodiment of a transport and trimming device of the utility model;

[0033] Figure 5 is a schematic diagram of the structure of the fixture;

[0034] Figure 6 is the front view of the fixture;

[0035] Figure 7 is a side view of the fixture;

[0036] Figure 8 A top view of the fixture.

[0037] Description of Figure Numbers:

[0038] 100, spindle; 110, limiting groove; 200, inner shell; 210, first elastic member; 300, outer shell; 310, second elastic member; 311, inner sleeve; 312, spring; 400, grinding body; 410, grinding rod; 420, connecting rod; 500, mechanical arm; 600, fixture; 610, slide rail; 620, clamping claw; 621, rubber pad; 622, positioning member; 623, guide rail slider; 700, driving device;

[0039] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0044] Reference Figure 1 to Figure 8 The utility model provides a core repairing tool, which includes:

[0045] Spindle 100;

[0046] The inner housing 200 is connected to the main shaft 100 through a first elastic member 210. The first elastic member 210 drives the inner housing 200 to rotate and reset along the circumferential direction of the main shaft 100;

[0047] The outer shell 300 is slidably connected to the inner shell 200 via a second elastic member 310, and the second elastic member 310 drives the outer shell 300 to move along the axial direction of the inner shell 200 and reset;

[0048] The grinding body 400 is connected to the housing 300 .

[0049] The inner shell 200 is slidably connected to the outer shell 300, and the two are connected by the second elastic member 310, so that the grinding body 400 can move within a certain range along the axial direction of the outer shell 300 under the action of external force (the force generated after the grinding body 400 contacts the sand core), and reset after movement through the second elastic member 310. In the process of core repair, the second elastic member 310 can also ensure that the grinding body 400 can fit tightly on the finishing surface of the sand core to complete the repair of the embryo seam. The inner shell 200 is connected to the main shaft 100 through the first elastic member 210, so that the grinding body 400 can rotate within a certain range along the circumference of the main shaft 100 under the action of external force, and can reset after the external force disappears. In addition, the core repair tool includes a main shaft 100, and the core repair tool can be installed on different drive devices 700 through the main shaft 100 to complete the core repair work. This solution reduces manual core repair and improves the consistency of sand core after repair by proposing a core repair tool. In addition, the core repairing tool proposed in this solution can complete the floating of the grinding body 400 in two directions, realize floating core repairing, and improve the repair effect of the sand core.

[0050] Specifically, a plurality of core dressing tools may be provided on the main shaft 100 , and the number of the core dressing tools may be determined according to the number of the sand core dressing surfaces.

[0051] The sliding connection structure between the inner shell 200 and the outer shell 300 can be that the outer shell 300 opens a sliding cavity and the inner shell 200 is arranged in the sliding cavity, that is, the outer shell 300 covers the inner shell 200 for sliding. Of course, it can also be arranged that the inner shell 200 covers the outer shell 300 for sliding, as long as the sliding connection between the inner shell 200 and the outer shell 300 can be achieved.

[0052] Furthermore, the first elastic member 210 is selected as an elastic rubber pad 621; the second elastic member 310 includes an inner sleeve 311 and a spring 312, and two inner sleeves 311 are provided. The two inner sleeves 311 cooperate to connect the inner shell 200 and the outer shell 300, and the two inner sleeves 311 are connected by the spring 312 and there is a gap between the two inner sleeves 311.

[0053] During the core repair process, when the grinding body 400 abuts against the sand core, the second elastic member 310 allows the grinding body 400 to fit tightly to the surface of the sand core without causing damage to the surface of the sand core due to excessive stress. During the core repair process, the grinding body 400 needs to slide over the surface of the sand core. Due to the different flatness of different trimming surfaces, the friction between each grinding body 400 and the trimming surface is different, and multiple grinding bodies 400 drive the spindle 100 to move synchronously. In order to prevent the grinding body 400 from forcibly scratching the trimming surface and causing damage to the sand core, an elastic rubber pad 621 is provided so that the inner shell 200 can perform a certain degree of circumferential movement relative to the spindle 100, that is, multiple inner shells 200 on the same spindle 100 have different degrees of rotation relative to the spindle 100 during the repair process due to the different flatness of the trimming surfaces on which they work, so as to ensure the integrity of the structure of the sand core after trimming.

[0054] Furthermore, the grinding body 400 is a rod-shaped structure as a whole. Compared with grinding bodies 400 of other structures, the rod-shaped structure has better elasticity due to its slenderness, and can further realize floating core dressing, thereby reducing the risk of damage to the sand core caused by the grinding body 400 during the dressing process. The grinding rod 410 and the connecting rod 420 are integrally formed.

[0055] Furthermore, since the interval between each dressing surface is fixed, the interval between two adjacent grinding bodies 400 is also fixed. In order to prevent the inner shell 200 from moving in the axial direction of the main shaft 100 during the core dressing process, which causes the subsequent core dressing position to be offset, a limit groove 110 is opened on the main shaft 100, and the inner shell 200 is installed at the limit groove 110 to ensure that the inner shell 200 will not be axially offset relative to the main shaft 100.

[0056] In addition, the utility model also proposes a trimming and transporting device, which includes a robot arm 500, a clamp 600 and a core trimming tool, wherein the core trimming tool is as described above, so the trimming and transporting device can achieve all the above-mentioned beneficial effects, which will not be repeated here.

[0057] Furthermore, during the operation of the dressing and transporting device, the sand core transporting work and the sand core dressing work are carried out separately. In order to prevent the work of the clamp 600 and the work of the core repairing device from conflicting with each other, the clamp 600 and the core repairing tool form a vertical structure. When performing different tasks, the robot arm 500 moves to a certain extent so that different tools correspond to different working surfaces.

[0058] Specifically, the clamp 600 includes a slide rail 610 and a clamping jaw 620. The core repairing tool is fixed on the slide rail 610 through the main shaft 100 and is arranged vertically with the clamping jaw 620. A rubber pad 621 and a positioning member 622 are provided on the inner side of the clamping jaw 620 to assist the gripping work of the clamping jaw 620, and the clamping and loosening of the clamping jaw 620 are achieved by using a driving device 700. The driving device 700 can be selected as a cylinder.

[0059] The working process of the trimming and handling device is described below: When the sand core is located at the waiting position of the conveyor line, the mechanical arm 500 drives the clamp 600 to approach the sand core, and the driving device 700 drives the clamp 620 to move on the slide rail 610 through the guide rail slider 623, and the clamp 620 is opened so that the two clamps 620 are located on the two sides of the sand core. A positioning hole is opened on the sand core, and the clamp 620 is close to the two sides of the sand core, and the positioning piece 622 is extended into the positioning hole to clamp the sand core. A rubber pad 621 is set inside the clamp 620, which can not only increase the friction between the clamp 620 and the sand core, but also prevent the clamp 620 from damaging the sand core. After the clamp 600 completes clamping the sand core, it transports the sand core to another conveyor line and releases the clamp 620. The robot arm 500 controls the clamp 600 to be away from the sand core by a certain distance so that the grinding body 400 can be close to the trimming surface of the sand core. The robot arm 500 controls the grinding body 400 to fit to the trimming surface and completes the core trimming action from top to bottom to complete the sand core trimming. The trimmed sand core is transported to the next process through the conveyor line.

[0060] It should be noted that, during the working process, the robot arm 500 completes the positioning, grasping and trimming of the sand core through corresponding control elements and control systems. The above technology is existing technology and will not be described in detail here.

[0061] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A core repairing tool, characterized in that: The core repairing tool comprises: spindle(100); An inner shell (200), wherein the inner shell (200) is connected to the main shaft (100) via a first elastic member (210), and the first elastic member (210) drives the inner shell (200) to rotate and reset along the circumference of the main shaft (100); An outer shell (300), wherein the outer shell (300) is slidably connected to the inner shell (200) via a second elastic member (310), and the second elastic member (310) drives the outer shell (300) to move along the axial direction of the inner shell (200) and to reset; A grinding body (400), wherein the grinding body (400) is connected to the housing (300).

2. The core repairing tool according to claim 1, characterized in that: The second elastic member (310) comprises an inner sleeve (311) and a spring (312). Two inner sleeves (311) are provided. The two inner sleeves (311) cooperate to connect the inner shell (200) and the outer shell (300). The two inner sleeves (311) are connected by the spring (312) and there is a gap between the two inner sleeves (311).

3. The core repairing tool according to claim 1, characterized in that: The first elastic member (210) is an elastic rubber pad (621).

4. The core repairing tool according to claim 1, characterized in that: The grinding body (400) comprises: Grinding rod (410); A connecting rod (420), wherein two connecting rods (420) are provided, one end of the connecting rod (420) is connected to the housing (300), and the other end of the connecting rod (420) exceeds the housing (300) by a predetermined distance and is connected to the grinding rod (410).

5. The core repairing tool according to claim 1, characterized in that: The main shaft (100) is provided with a limiting groove (110), and the inner shell (200) is arranged in the limiting groove (110) via the first elastic member (210).

6. A trimming and transporting device, characterized in that: The trimming and transporting device comprises: Robotic Arm (500); A clamp (600), the clamp (600) being connected to the mechanical arm (500); A core repairing tool, wherein the core repairing tool is connected to the fixture (600), and the core repairing tool is the core repairing tool as described in any one of claims 1 to 5.

7. The trimming and transporting device according to claim 6, characterized in that: The clamp (600) is arranged vertically to the core repairing tool.

8. The trimming and transporting device according to claim 6, characterized in that: The clamp (600) comprises: A slide rail (610), the core repairing tool being installed on the slide rail (610); A clamping jaw (620), wherein the clamping jaw (620) is slidably connected to the slide rail (610), a rubber pad (621) is provided on the inner side of the clamping jaw (620), and the clamping jaw (620) is arranged vertically to the core repairing tool.

9. The trimming and transporting device according to claim 8, characterized in that: A positioning member (622) is also provided on the inner side of the clamping jaw (620).

10. The trimming and transporting device according to claim 8, characterized in that: The trimming and handling device further comprises a driving device (700); the clamping jaw (620) is connected to the slide rail (610) via a guide rail slider (623); and the driving device (700) drives the clamping jaw (620).

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