Automatic sand core taking and repairing mechanism

Abstract

The utility model discloses an automatic sand core taking and repairing mechanism which comprises a repairing machine body, a guide rail is arranged at the bottom end of the inner side of the repairing machine body, and a workbench for placing a sand core is arranged on the guide rail in a sliding mode. The air cylinder is fixed to the upper end of the inner side of the finishing machine body, and a mounting frame is arranged at the lower end of the air cylinder. The trimmer is detachably mounted at one end of the mounting frame and is used for trimming the sand core; the driven assembly is arranged on one side wall of the mounting frame so as to drive the workbench to move to the position below the dresser when the dresser moves downwards. By arranging the air cylinders, the trimmer, the mounting frame and the driven assembly, the situation that two air cylinders are needed for trimming when the sand core is trimmed is avoided, the device is convenient for reducing the use amount of the air cylinders, the production and maintenance cost is reduced, the structure is simple, the sand core can be automatically and rapidly trimmed, the operation is simple and convenient, and the production efficiency is improved through leakage holes. And accumulation of sand core waste during trimming can be reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model specifically relates to an automatic sand core repairing mechanism. Background Art

[0002] Sand core usually refers to a casting core used in the metal casting process. A casting core is a temporary structure, usually made of sand or other materials, used to create an internal cavity or hollow part in the metal casting process. After the sand core is formed, a clear blank seam appears in the parting surface. Generally, the sand core needs to be trimmed.

[0003] In the existing sand core dressing, two cylinders are generally used for action. One cylinder drives the sand core to move to a predetermined position, and the other cylinder drives the dresser to move to dress the sand core. A large number of cylinders are used, and the production cost is high. When one of the cylinders is damaged in the later stage, it cannot work, and maintenance is also relatively troublesome. It is not convenient to reduce the use of cylinders. During the dressing, it is not convenient to discharge the waste material in time. The accumulation of waste material affects the placement of the sand core. For this reason, we propose an automatic sand core repair mechanism. Utility Model Content

[0004] The utility model aims to provide a sand core automatic repairing mechanism to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand core automatic repair mechanism, comprising:

[0006] A trimming machine body, wherein a guide rail is provided at the inner bottom end of the trimming machine body, and a workbench for placing the sand core is slidably provided on the guide rail;

[0007] A cylinder is fixed to the upper inner end of the trimming machine body, and a mounting frame is provided at the lower end of the cylinder;

[0008] A trimmer, which is detachably mounted on one end of the mounting frame to trim the sand core;

[0009] The driven component is arranged on a side wall of the mounting frame to drive the workbench to move below the trimmer when the trimmer moves downward.

[0010] Preferably, the driven assembly includes a moving wheel, a fixed wheel, a traction rope, a guide housing and a slider, the moving wheel is fixed to one end of the mounting frame, the two fixed wheels are installed side by side on the inner wall of the trimming machine body, one end of the traction rope is fixed to the moving wheel, and the traction rope is wound around the fixed wheel, and the other end cooperates with the slider on the lower surface of the workbench, and the guide housing is fixed on the guide rail to guide the traction rope.

[0011] Preferably, a connecting plate is provided on the lower surface of the sliding block, and a first spring connected to the guide housing is fixed on one side wall of the connecting plate, and a return spring fixed to the guide rail is provided on the other side wall of the connecting plate.

[0012] Preferably, the guide housing is in an "L" shape, and a plurality of guide housings are provided.

[0013] Preferably, the cross section of the slider is in the shape of an I.

[0014] Preferably, a receiving cavity is provided on the inner side of the workbench, and a leakage hole penetrating the upper surface of the workbench is provided on the receiving cavity, and a plurality of the leakage holes are provided, and the plurality of the leakage holes are distributed in a circular shape.

[0015] Preferably, a chip removal opening is provided on one side of the workbench.

[0016] Preferably, the trimmer is annular, and the trimmer is fixed to the mounting frame by bolts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By providing a cylinder, a trimmer, a mounting frame and a driven component, it is avoided that two cylinders are needed to perform the trimming action when trimming the sand core. The device is convenient for reducing the use of cylinders and reducing production and maintenance costs. It has a simple structure and can automatically and quickly trim the sand core. It is easy to operate and can reduce the accumulation of sand core waste during trimming through the leakage hole, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the cylinder structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mobile wheel of the utility model;

[0022] Figure 4 This is a schematic diagram of the traction rope structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the return spring of the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the workbench of the utility model.

[0025] In the figure: 1. dressing machine body; 2. workbench; 21. leak hole; 22. chip removal port; 3. guide rail; 4. cylinder; 5. driven assembly; 51. moving wheel; 52. fixed wheel; 53. traction rope; 54. guide housing; 55. first spring; 6. dresser; 7. mounting bracket; 8. reset spring; 9. slider. DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] See also Figure 1-Figure 6 The utility model provides a technical solution: a sand core automatic repair mechanism, comprising:

[0028] A trimming machine body 1 is provided with a guide rail 3 at the inner bottom end of the trimming machine body 1, and a workbench 2 for placing the sand core is slidably provided on the guide rail 3, so as to facilitate moving the sand core to a predetermined position, and then trimming the sand core by a trimmer 6;

[0029] The cylinder 4 is fixed to the upper end of the inner side of the trimming machine body 1, and a mounting frame 7 is provided at the lower end of the cylinder 4, so as to drive the trimmer 6 and the workbench 2 to move simultaneously, thereby reducing the usage of the cylinder 4;

[0030] A trimmer 6 is detachably mounted on one end of a mounting frame 7 to trim the sand core;

[0031] The driven component 5 is disposed on a side wall of the mounting frame 7 to drive the workbench 2 to move below the dresser 6 when the dresser 6 moves downward, so as to drive the workbench 2 to move to a predetermined dressing position.

[0032] In this embodiment, preferably, the driven component 5 includes a moving wheel 51, a fixed wheel 52, a traction rope 53, a guide shell 54 and a slider 9. The moving wheel 51 is fixed to one end of the mounting frame 7, and the two fixed wheels 52 are installed side by side on the inner wall of the trimming body 1. One end of the traction rope 53 is fixed to the moving wheel 51, and the traction rope 53 is wound around the fixed wheel 52, and the other end cooperates with the slider 9 on the lower surface of the workbench 2, so as to facilitate the faster movement of the workbench 2 through the pulley group. The guide shell 54 is fixed on the guide rail 3 to guide the traction rope 53, so as to guide the moving position of the traction rope 53.

[0033] In this embodiment, preferably, a connecting plate is provided on the lower surface of the slider 9, and a first spring 55 connected to the guide shell 54 is fixed on one side wall of the connecting plate, so as to prevent the lower end of the cylinder 4 from applying excessive pulling force to the traction rope 53 when the dresser 6 is dressing the sand core, thereby causing damage to the traction rope 53. A reset spring 8 fixed to the guide rail 3 is provided on the other side wall of the connecting plate, so as to drive the workbench 2 and the sand core to reset after dressing, so as to facilitate the manipulator to take away the sand core.

[0034] In this embodiment, preferably, the guide housing 54 is “L”-shaped, and a plurality of guide housings 54 are provided.

[0035] In this embodiment, preferably, the cross section of the slider 9 is in the shape of an I.

[0036] In this embodiment, preferably, a accommodating cavity is opened on the inner side of the workbench 2, and a leakage hole 21 penetrating the upper surface of the workbench 2 is opened on the accommodating cavity. There are multiple leakage holes 21, and the multiple leakage holes 21 are distributed in a circular shape, which is convenient for chip removal of the waste trimmed on the workbench 2 and avoids the accumulation of waste.

[0037] In this embodiment, preferably, a chip discharge port 22 is provided on one side of the workbench 2 to facilitate the discharge of waste materials inside the workbench 2 .

[0038] In this embodiment, preferably, the trimmer 6 is annular, and the trimmer 6 is fixed to the mounting frame 7 by bolts.

[0039] The working principle and use process of the utility model are as follows: when in use, the manipulator automatically places the sand core on the workbench 2. At this time, the output end of the cylinder 4 drives the mounting frame 7 to move downward, and the mounting frame 7 drives the moving wheel 51 to move downward, so that the moving wheel 51 pulls the workbench 2 to move through the traction rope 53 and the slider 9 until the workbench 2 moves to the bottom of the trimmer 6, and the reset spring 8 is extended. At the same time, the mounting frame 7 drives the trimmer 6 to descend to the sand core position, and the trimmer 6 continues to descend to trim the sand core, while the workbench 2 has moved to the predetermined position and will not move. At this time, the pulling force on the guide shell 54 causes the first spring 55 to extend to ensure that the guide shell 54 will not be damaged by excessive pulling force. After trimming, the reset spring 8 restores its shape and drives the workbench 2 to reset, thereby facilitating the cyclic trimming of the sand core.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand core automatic repair mechanism, characterized in that: include: A trimming machine body (1), wherein a guide rail (3) is provided at the inner bottom end of the trimming machine body (1), and a workbench (2) for placing the sand core is slidably provided on the guide rail (3); A cylinder (4) is fixed to the upper end of the inner side of the trimming machine body (1), and a mounting frame (7) is provided at the lower end of the cylinder (4); A trimmer (6) is detachably mounted on one end of a mounting frame (7) to trim the sand core; The driven component (5) is arranged on a side wall of the mounting frame (7) so as to drive the workbench (2) to move below the trimmer (6) when the trimmer (6) moves downward.

2. The automatic sand core repairing mechanism according to claim 1, characterized in that: The driven assembly (5) comprises a moving wheel (51), a fixed wheel (52), a traction rope (53), a guide housing (54) and a slider (9); the moving wheel (51) is fixed to one end of a mounting frame (7); two fixed wheels (52) are mounted side by side on the inner wall of a trimming machine body (1); one end of the traction rope (53) is fixed to the moving wheel (51), and the traction rope (53) is wound around the fixed wheel (52); the other end of the traction rope is matched with a slider (9) on the lower surface of a workbench (2); and the guide housing (54) is fixed to a guide rail (3) to guide the traction rope (53).

3. The automatic sand core repairing mechanism according to claim 2, characterized in that: A connecting plate is provided on the lower surface of the sliding block (9), and a first spring (55) connected to the guide housing (54) is fixed on one side wall of the connecting plate, and a return spring (8) fixed to the guide rail (3) is provided on the other side wall of the connecting plate.

4. The automatic sand core repairing mechanism according to claim 2, characterized in that: The guide housing (54) is in an "L" shape, and a plurality of guide housings (54) are provided.

5. The automatic sand core repairing mechanism according to claim 2, characterized in that: The cross section of the sliding block (9) is in the shape of an I.

6. The automatic sand core repairing mechanism according to claim 1, characterized in that: The workbench (2) has an accommodating cavity on its inner side, and a leakage hole (21) penetrating the upper surface of the workbench (2) is provided on the accommodating cavity. A plurality of leakage holes (21) are provided, and the plurality of leakage holes (21) are distributed in a circular shape.

7. The automatic sand core repairing mechanism according to claim 1, characterized in that: A chip removal opening (22) is provided on one side of the workbench (2).

8. The automatic sand core repairing mechanism according to claim 1, characterized in that: The trimmer (6) is annular in shape, and the trimmer (6) and the mounting frame (7) are fixed by bolts.

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