Three-dimensional compaction table for casting

Abstract

The utility model relates to the technical field of casting equipment, in particular to a three-dimensional jolt ramming table for casting, which comprises a workbench, a base, a spring and a vibration motor, and two corners of the top surface of a sand box are respectively provided with a hanging lug; the rotating directions of the two opposite vibration motors on the outer side of the workbench are the same, and the angle difference of the deviation blocks is 180 degrees; the rotating directions of the vibration motors on the two sides of the bottom of the workbench are opposite, the deflection blocks are symmetrically distributed along the center, and the angles of the deflection blocks on the same side are the same. Or the rotating directions of the six vibration motors at the bottom of the workbench are the same as the angles of the deflection blocks; or the two vibration motors in the middle of the bottom of the workbench stop rotating, the four vibration motors at the four corners rotate in the same direction, and the angles of the deviation blocks sequentially differ by 90 degrees in the rotating direction of the vibration motors. When a sand box is fixed by the three-dimensional jolt ramming table, the gravity center of the sand box and the center of the jolt ramming table can be on the same vertical line; and the arc-shaped sand box can be subjected to rotary compaction, so that the uniformity and compactness of compaction are guaranteed, and the casting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to a three-dimensional vibrating table for casting. Background Art

[0002] The vibrating table is a key piece of equipment in the casting process. During the casting process, to ensure that the molding sand is evenly and densely distributed in the flask, the vibrating table is needed to compact the sand in the flask. However, the existing vibrating tables have poor working efficiency and effectiveness.

[0003] The utility model patent with authorization announcement number CN208960929U provides a three-dimensional vibration compaction table, including a frame, a plurality of shock-absorbing springs arranged on the frame, a vibration table arranged on the shock-absorbing springs and used to support a sand box, and a plurality of vibration motors arranged on the vibration table. The vibration table is provided with a first limit assembly and a second limit assembly for limiting the horizontal movement of the sand box; the first limit assembly is slidably connected to a third limit assembly for limiting the up and down movement of the sand box; it solves the problem that the existing vibration compaction device cannot evenly distribute the sand in the sand box, limits the sliding of the sand box on the workbench to a certain extent, and maintains a certain degree of synchronization between the movement of the sand box and the workbench, which has the advantage of improving the vibration compaction effect of the dry sand in the sand box.

[0004] In the process of realizing the present utility model, the inventors found that there are at least the following problems in the prior art: 1. When the existing vibrating table fixes the sand box, it cannot ensure that the center of gravity of the sand box and the center of the vibrating table are on the same vertical line, resulting in uneven vibration and affecting the casting quality; 2. The existing vibrating table has a strong vibration ability in the front and back, left and right, and up and down directions, but cannot meet the vibration requirements of the arc-shaped sand box in the horizontal rotation direction. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the utility model develops a three-dimensional vibrating table for casting. When the three-dimensional vibrating table fixes the sand box, it can ensure that the center of gravity of the sand box and the center of the vibrating table are on the same vertical line; it can also rotate and vibrate the arc-shaped sand box, thereby ensuring uniform and dense vibration and improving the casting quality.

[0006] The technical solution to the technical problem solved by the utility model is as follows: the embodiment of the utility model provides a three-dimensional vibrating table for casting, which is used to fix and vibrate the sand box, including a workbench, a base, a spring, and a vibration motor. The sand box is fixed on the workbench, the workbench is placed on the base, a spring is provided between the workbench and the base, the vibration motor is installed on the workbench, and a hanging ear is provided at each corner of the top surface of the sand box; the workbench is square, and the vibration motors are provided with ten individually controllable ones, and one vibration motor is horizontally installed in the middle of the outer sides of each of the four sides of the workbench. The vibration motors are arranged at the working A vibration motor is installed vertically at each end and in the middle of the workbench. Two vibration motors facing each other on the outside of the workbench rotate in the same direction, with their deflection blocks differing by 180 degrees. Alternatively, the vibration motors on either side rotate in opposite directions, with the deflection blocks symmetrically distributed along the center. The deflection blocks on each motor on the same side have the same angle. Alternatively, all six vibration motors on the workbench rotate in the same direction and with the same deflection block angle. Alternatively, the two vibration motors in the middle of the workbench rotate in the same direction, while the four vibration motors at the four corners rotate in the same direction, with the deflection block angles varying by 90 degrees along the rotation direction of the vibration motors. The vibration motor uses a set of eccentric blocks installed at each end of the rotor shaft to achieve vibration using the centrifugal force generated by the high-speed rotation of the eccentric blocks.

[0007] As an optimization, the spring is an air spring.

[0008] As an optimization, the spring is a compression spring composed of spiral steel wire.

[0009] As an optimization, the three-dimensional vibration compaction table for casting also includes a pressure plate, a guide rod, a screw, a top plate, and a card cover. The pressure plate, guide rod, screw, top plate, and card cover are respectively arranged in a group in the middle of the four sides of the top surface of the workbench. The top plate is set on the workbench. A threaded hole is set in the middle of the top plate and a guide hole is set on both sides. The screw is installed in the threaded hole in the middle of the top plate, and a guide rod is installed in the guide holes on both sides of the top plate. The pressure plate is set on the side of the top plate close to the center of the workbench, one end of the guide rod is connected to the pressure plate, and the screw is connected to the pressure plate through the card cover.

[0010] As an optimization, the card cover is a round cover with an opening at the bottom, and a circular stopper is provided at one end of the screw near the pressure plate. The diameter of the opening is larger than the diameter of the screw and smaller than the diameter of the stopper. The card cover covers the stopper and is fixed on the pressure plate.

[0011] As an optimization, a hand wheel is further provided at one end of the screw away from the pressing plate.

[0012] As an optimization, the two ends of the spring are respectively fixed to the bottom surface of the workbench and the top surface of the base.

[0013] The effects provided in the content of the utility model are only the effects of the embodiments, rather than all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0014] 1. Install a lug at each corner of the top of the sand box. Before securing the sand box, use a crane to lift the sand box through the two lugs. Draw a vertical line on the top of the sand box. The intersection of the two lines passes through the center of gravity of the sand box. When securing the sand box, place this point at the center of the workbench. This can ensure that the center of gravity of the sand box and the center of the compaction table are on the same vertical line; by setting up ten individually controllable vibration motors, and installing one vibration motor horizontally in the middle of the outside of the four sides of the workbench, and vertically setting one at both ends and in the middle of both sides of the bottom of the workbench; the vibration of the workbench can be efficiently controlled by controlling the direction of each vibration motor and the angle of the deflection block: by setting the two vibration motors opposite to each other on the outside of the workbench to have the same direction of direction and the angle of the deflection block to differ by 180 degrees, the lifting and pressing forces can be applied alternately on both sides of the workbench, thereby lifting and pressing it down to achieve vertical vibration; and by setting the horizontal vibration motors on the outside of the four sides of the workbench, the force arm can be longer when the vibration motor applies vertical lifting or downward pressure on the workbench, thereby improving the vibration effect. When the directions of the vibration motors on both sides of the bottom of the workbench are opposite, the deflection blocks on the vibration motors on both sides are symmetrically distributed along the center, and the angles of the deflection blocks on the vibration motors on the same side are the same, the vibration motors can provide the workbench with a vibration force that swings back and forth in the horizontal direction; when the directions and angles of the deflection blocks of the six vibration motors at the bottom of the workbench are the same, the vibration motors can provide the workbench with a vibration force that swings left and right in the horizontal direction; when the middle two of the six vibration motors at the bottom of the workbench stop rotating, the four vibration motors at the four corners rotate in the same direction, and the angles of the deflection blocks on the four vibration motors differ by 90 degrees along the rotation direction of the vibration motors, the vibration motors can provide the workbench with a vibration force that rotates and swings in the horizontal direction, and can perform rotational compaction on the arc-shaped sand box, ensuring uniform and dense compaction and improving casting quality.

[0015] 2. By setting a screw to connect the pressure plate through a card cover, the screw can rotate freely, and when the screw moves back and forth, it can drive the pressure plate to move together, thereby fixing the sand box at different positions on the workbench.

[0016] 3. By setting a handwheel at the end of the screw away from the pressure plate, the rotation of the screw can be facilitated.

[0017] 4. By setting the two ends of the spring to be fixed on the bottom surface of the workbench and the top surface of the base respectively, and limiting the weight of the sand box, the spring will not reach the maximum compression amount, so that the workbench can always be in a suspended state, which facilitates the normal operation of the compaction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of an embodiment of the utility model.

[0019] Figure 2 This is a top view of an embodiment of the utility model.

[0020] Figure 3 This is a bottom view of an embodiment of the utility model.

[0021] Figure 4 for Figure 2 Cross-sectional view along the AA direction.

[0022] Figure 5 for Figure 4 A partial enlarged view of area B in the middle.

[0023] Figure 6 、 Figure 7 This is a three-dimensional diagram of an embodiment of the present utility model.

[0024] Figure 8 、 Figure 9 This is the schematic diagram of the vibration motor on the outside of the workbench rotating.

[0025] Figures 10 to 12 This is the schematic diagram of the vibration motor at the bottom of the workbench rotating.

[0026] Among them: sand box 1, workbench 2, base 3, spring 4, pressure plate 5, guide rod 6, screw 7, top plate 8, vibration motor 9, card cover 10, hanging ear 11, stopper 71, opening 101. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] Figures 1 to 12 An embodiment of the present invention is as follows: Figure 6 、 Figure 7 As shown, a three-dimensional vibration table for casting is used to fix and vibrate the sand box 1, including a workbench 2, a base 3, a spring 4, and a vibration motor 9. The sand box 1 is fixed on the workbench 2, and the workbench 2 is placed on the base 3. A spring 4 is provided between the workbench 2 and the base 3. The vibration motor 9 is installed on the workbench 2. A hanging ear 11 is provided at each corner of the top surface of the sand box 1. The spring 4 is an air spring. The two ends of the spring 4 are respectively fixed to the bottom surface of the workbench 2 and the top surface of the base 3. By setting the two ends of the spring 4 to be fixed to the bottom surface of the workbench 2 and the top surface of the base 3, and limiting the weight of the sand box 1 so that the spring 4 does not reach the maximum compression amount, the workbench 2 can always be in a suspended state, which facilitates the normal operation of the vibration work.

[0029] The vibration motor 9 features a set of eccentric weights mounted on each end of the rotor shaft, utilizing the centrifugal force generated by the high-speed rotation of the eccentric weights to achieve vibration. By installing a hook 11 at each corner of the top surface of the flask 1, the flask 1 is hoisted by a crane using the two hooks 11 before securing the flask 1. A vertical line is then drawn across the top surface of the flask 1, with the intersection of the two lines passing through the center of gravity of the flask 1. When securing the flask 1, this point is placed at the center of the workbench 2. This ensures that the center of gravity of the flask 1 and the center of the compaction table are aligned vertically.

[0030] like Figure 3 As shown, the workbench 2 is square, and ten individually controllable vibration motors 9 are provided. One vibration motor 9 is horizontally installed in the middle of the outer sides of the four sides of the workbench 2, and one vibration motor 9 is vertically installed at both ends and the middle of both sides of the bottom of the workbench 2.

[0031] like Figure 8 、 Figure 9 As shown, the two vibration motors 9 on the outside of the workbench 2 have the same direction of rotation and the angles of the deflection blocks differ by 180 degrees; by setting the vibration motors 9 to ten individually controllable ones, and installing one vibration motor 9 horizontally in the middle of the outside of the four sides of the workbench 2, and vertically setting one at both ends and in the middle of the bottom of the workbench 2; efficient control of the vibration of the workbench 2 can be achieved by controlling the direction of rotation and the angle of the deflection blocks of each vibration motor 9: by setting the two vibration motors 9 on the outside of the workbench 2 to have the same direction of rotation and the angles of the deflection blocks differ by 180 degrees, lifting and pressing forces can be applied alternately on both sides of the workbench 2, thereby lifting and pressing it down to achieve vertical vibration; and by setting the horizontal vibration motors 9 on the outside of the four sides of the workbench 2, the force arm can be longer when the vibration motor 9 applies vertical lifting or downward pressure to the workbench 2, thereby improving the vibration effect.

[0032] like Figure 10 As shown, the vibration motors 9 on both sides of the bottom of the workbench 2 are turned in opposite directions, the deflection blocks on the vibration motors 9 on both sides are symmetrically distributed along the center, and the angles of the deflection blocks on the vibration motors 9 on the same side are the same; when the vibration motors 9 on both sides of the bottom of the workbench 2 are turned in opposite directions, the deflection blocks on the vibration motors 9 on both sides are symmetrically distributed along the center, and the angles of the deflection blocks on the vibration motors 9 on the same side are the same, the vibration motors 9 can provide the workbench 2 with a vibration force that swings back and forth in the horizontal direction.

[0033] Or as Figure 11 As shown, the six vibration motors 9 at the bottom of the workbench 2 are all at the same angle as the deflection block. When the six vibration motors 9 at the bottom of the workbench 2 are all at the same angle as the deflection block, the vibration motors 9 can provide the workbench 2 with a vibration force that swings left and right in the horizontal direction.

[0034] Or as Figure 12 As shown, the middle two of the six vibration motors 9 at the bottom of the workbench 2 stop rotating, the four vibration motors 9 at the four corners rotate in the same direction, and the angles of the deflection blocks differ by 90 degrees along the rotation direction of the vibration motors 9. When the middle two of the six vibration motors 9 at the bottom of the workbench 2 stop rotating, the four vibration motors 9 at the four corners rotate in the same direction, and the angles of the deflection blocks on the four vibration motors 9 differ by 90 degrees along the rotation direction of the vibration motors 9, the vibration motors 9 can provide the workbench 2 with a horizontal rotational swinging vibration force, which can rotate and compact the arc-shaped sand box, ensuring uniform and dense compaction and improving casting quality.

[0035] like Figure 6 As shown, the three-dimensional vibration table for casting also includes a pressing plate 5, a guide rod 6, a screw rod 7, a top plate 8, and a card cover 10. The pressing plate 5, the guide rod 6, the screw rod 7, the top plate 8, and the card cover 10 are respectively arranged in a group in the middle of the four sides of the top surface of the workbench 2. The top plate 8 is set on the workbench 2. The middle part of the top plate 8 is provided with a threaded hole and a guide hole is provided on both sides. The screw rod 7 is installed in the threaded hole in the middle of the top plate 8. The guide rod 6 is installed in the guide holes on both sides of the top plate 8. The pressing plate 5 is set on the side of the top plate 8 close to the center of the workbench 2. One end of the guide rod 6 is connected to the pressing plate 5, and the screw rod 7 is connected to the pressing plate 5 through the card cover 10. The end of the screw rod 7 away from the pressing plate 5 is also provided with a handwheel. By providing a handwheel at the end of the screw rod 7 away from the pressing plate 5, the rotation of the screw rod 7 can be facilitated.

[0036] like Figure 5 As shown, the cover 10 is in the shape of a dome with an opening 101 at the bottom. A circular stopper 71 is provided at the end of the screw 7 near the pressure plate 5. The diameter of the opening 101 is larger than the diameter of the screw 7 and smaller than the diameter of the stopper 71. The cover 10 covers the stopper 71 and is fixed to the pressure plate 5. By arranging the screw 7 to be connected to the pressure plate 5 through the cover 10, the screw 7 can rotate freely, and when the screw 7 moves forward and backward, it can drive the pressure plate 5 to move together, thereby fixing the flask 1 at different positions of the workbench 2.

[0037] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the utility model.

Claims

1. A three-dimensional vibrating table for casting, used for fixing and vibrating a sand box (1), comprising a workbench (2), a base (3), a spring (4), and a vibrating motor (9), wherein the sand box (1) is fixed on the workbench (2), the workbench (2) is placed on the base (3), a spring (4) is provided between the workbench (2) and the base (3), and the vibrating motor (9) is installed on the workbench (2), and wherein: A hanging ear (11) is respectively provided at two corners of the top surface of the sand box (1); the workbench (2) is square, and ten vibration motors (9) are provided that can be controlled separately, one vibration motor (9) is respectively installed horizontally in the middle of the outer sides of the workbench (2), and one vibration motor (9) is respectively installed vertically at the two ends and the middle of the bottom of the workbench (2); the two vibration motors (9) facing each other on the outer side of the workbench (2) have the same direction of rotation, and the angles of the deflection blocks differ by 180 degrees; the vibration motors (9) on both sides of the bottom of the workbench (2) have opposite directions of rotation, the deflection blocks on the vibration motors (9) on both sides are symmetrically distributed along the center, and the angles of the deflection blocks on the vibration motors (9) on the same side are the same; or the directions of rotation and the angles of the deflection blocks of the six vibration motors (9) at the bottom of the workbench (2) are all the same; or the two vibration motors (9) in the middle of the bottom of the workbench (2) stop rotating, and the four vibration motors (9) at the four corners rotate in the same direction, and the angles of the deflection blocks differ by 90 degrees in sequence along the rotation direction of the vibration motor (9).

2. A three-dimensional vibrating table for casting according to claim 1, characterized in that: The spring (4) is an air spring.

3. A three-dimensional vibrating table for casting according to claim 1, characterized in that: The spring (4) is a compression spring composed of spiral steel wire.

4. A three-dimensional vibrating table for casting according to claim 1, characterized in that: The three-dimensional vibration compaction table for casting further comprises a pressing plate (5), a guide rod (6), a screw rod (7), a top plate (8), and a card cover (10). The pressing plate (5), the guide rod (6), the screw rod (7), the top plate (8), and the card cover (10) are respectively arranged in a group at the middle of the four sides of the top surface of the workbench (2). The top plate (8) is arranged on the workbench (2). A threaded hole is arranged in the middle of the top plate (8), and a guide hole is respectively arranged on both sides. The screw rod (7) is installed in the threaded hole in the middle of the top plate (8). One guide rod (6) is installed in the guide holes on both sides of the top plate (8). The pressing plate (5) is arranged on one side of the top plate (8) close to the center of the workbench (2). One end of the guide rod (6) is connected to the pressing plate (5), and the screw rod (7) is connected to the pressing plate (5) through the card cover (10).

5. A three-dimensional vibrating table for casting according to claim 4, characterized in that: The card cover (10) is in the shape of a circular cover with an opening (101) at the bottom. A circular stopper (71) is provided at one end of the screw (7) close to the pressing plate (5). The diameter of the opening (101) is larger than the diameter of the screw (7) and smaller than the diameter of the stopper (71). The card cover (10) covers the stopper (71) and is fixed on the pressing plate (5).

6. A three-dimensional vibrating table for casting according to claim 4, characterized in that: A hand wheel is also provided at one end of the screw rod (7) away from the pressing plate (5).

7. The three-dimensional vibrating table for casting according to claim 1, characterized in that: The two ends of the spring (4) are respectively fixed to the bottom surface of the workbench (2) and the top surface of the base (3).

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