Casting clamping device used in high-frequency vibration equipment

Abstract

The casting clamping device used in the high-frequency vibration equipment comprises a clamping mechanism, a tool bottom plate and a telescopic mechanism, the clamping mechanism is arranged on the tool bottom plate, the telescopic mechanism is arranged below the tool bottom plate, the top of the telescopic mechanism is fixedly connected with the tool bottom plate, a base is arranged at the bottom of the telescopic mechanism, and the clamping mechanism is arranged on the tool bottom plate. Vertical columns in a vertical state are arranged at the two ends of the base, the vertical columns penetrate through the tool bottom plate to be movably connected with the clamping mechanism, and the telescopic mechanism drives the tool bottom plate to move up and down through stretching and retracting so as to drive the clamping mechanism to clamp and loosen a casting. The anti-seismic performance of the telescopic mechanism can be improved, the first air bag assembly and the second air bag assembly of the telescopic mechanism are both in a sealed state and are resistant to interference of a dust environment, and the service life of the telescopic mechanism can be remarkably prolonged; the robot can conveniently take and place castings, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand casting, in particular to a casting clamping device used in a high-frequency vibration device. Background Art

[0002] In the post-treatment stage of sand core casting, it is necessary to break and remove the sand core / mold completely by the exciting force generated by hammering and vibration. On the vibration shakeout equipment, a vibration frequency of 20 - 25 Hz and an amplitude of 5 - 10 mm will be generated for the casting, which poses a severe requirement on the clamping method of the casting positioning tooling. Especially when used on an automated production line, it is required to be stable and reliable, with high repeat positioning accuracy and good earthquake resistance, etc.

[0003] Currently, the conventional clamping method mainly drives the fixture to clamp through an air / oil cylinder. However, the earthquake resistance of the air / oil cylinder is poor, and the fixture will loosen during the process of hammering and vibrating the sand mold. Moreover, the production environment is a dust environment, and the dust-proof sealing requirements for the piston rod of the air / oil cylinder are relatively high. Since the piston rod is subjected to high-frequency exciting force, dust will enter the sealing system during the vibration of the piston rod, resulting in a greatly reduced service life of the sealing system of the air / oil cylinder. Furthermore, the conventional fixture is not conducive to the robot to pick and place the casting. Summary of the Invention

[0004] Therefore, it is necessary to provide a sand core clamping device with strong earthquake resistance, not afraid of dust environment, and convenient for the robot to pick and place the casting.

[0005] To achieve the above object, the inventor provides a casting clamping device used in a high-frequency vibration device, including: a clamping mechanism, a tooling bottom plate, and a telescopic mechanism. The clamping mechanism is arranged on the tooling bottom plate, the telescopic mechanism is arranged below the tooling bottom plate, the top of the telescopic mechanism is fixedly connected to the tooling bottom plate, the bottom of the telescopic mechanism is provided with a base, vertical columns are arranged at both ends of the base, the vertical columns penetrate through the tooling bottom plate and are movably connected to the clamping mechanism, and the telescopic mechanism drives the tooling bottom plate to move up and down through telescoping, thereby driving the clamping mechanism to clamp and release the casting.

[0006] Further, the telescopic mechanism includes a first airbag assembly, a second airbag assembly, a shaft, a first end cover, a second end cover, a third end cover, a fourth end cover, and a connecting flange. The first end cover, the second end cover, the third end cover, and the fourth end cover are sleeved on the shaft in sequence from bottom to top. The first end cover and the fourth end cover are respectively fixed at both ends of the shaft, and the first end cover is fixedly connected to the base through a flange. The third end cover is fixed on the second end cover, and the second end cover and the third end cover can slide freely on the shaft. The first airbag assembly is fixedly arranged in a ring shape between the first end cover and the second end cover, and the second airbag assembly is fixedly arranged in a ring shape between the third end cover and the fourth end cover. The connecting flange is arranged on the second end cover, and the top of the connecting flange is fixedly connected to the tooling base plate.

[0007] Further, the first airbag assembly and the second airbag assembly have the same structural dimensions. The first airbag assembly and the second airbag assembly are both composed of an airbag, a first fixing ring, and a second fixing ring. The airbag is circular, and buckles protruding outward are arranged in the middle of both sides of the airbag. Claw slots matching the buckles are arranged on the first fixing ring and the second fixing ring, and the first fixing ring and the second fixing ring are embedded with the airbag through the cooperation of the buckles and the claw slots.

[0008] Further, the first airbag assembly is fixedly connected to the first end cover and the second end cover respectively through the first fixing ring and the second fixing ring, and the second airbag assembly is fixedly connected to the third end cover and the fourth end cover respectively through the first fixing ring and the second fixing ring.

[0009] Further, the clamping mechanism includes a receiving seat, a hinge seat, and a pressing arm. The receiving seat is fixed on both sides of the tooling base plate, the hinge seat is fixed on one side of the receiving seat, the pressing arm is hinged on the hinge seat, a longitudinal through hole is arranged in the middle of the receiving seat, and the column penetrates through the through hole and is hinged to the middle of the pressing arm through a hinge.

[0010] Further, a first air hole for inflating and deflating the first airbag assembly is arranged on the second end cover, and a second air hole for inflating and deflating the second airbag assembly is arranged on the fourth end cover.

[0011] Further, the airbag is made of elastic rubber material.

[0012] Further, a groove for limiting the casting is arranged on one side of the receiving seat opposite to the hinge seat.

[0013] Further, a sealing ring is arranged at the connection between the second end cover, the third end cover and the shaft.

[0014] Different from the prior art, the beneficial effects achieved by the above technical solution are as follows: by using the inflation and deflation of the first airbag assembly and the second airbag assembly to drive the telescopic clamping structure to clamp the casting, the seismic performance of the telescopic mechanism can be improved, and both the first airbag assembly and the second airbag assembly of the telescopic mechanism are in a sealed state, not afraid of the interference of the dust environment, and can significantly improve its service life; at the same time, by using the rotating pressing arm to squeeze the casting placed on the receiving seat to form clamping of the casting, it is convenient for the robot to pick and place the casting and improve its processing efficiency. Brief Description of the Drawings

[0015] Figure 1 Schematic perspective view of the casting clamping device described in the specific embodiment;

[0016] Figure 2 Schematic front view of the casting clamping device described in the specific embodiment;

[0017] Figure 3 Schematic side view of the casting clamping device described in the specific embodiment;

[0018] Figure 4 Schematic sectional view of the casting clamping device described in the specific embodiment;

[0019] Figure 5 Explosion diagram of the casting clamping device described in the specific embodiment;

[0020] Figure 6 Explosion diagram of the first airbag assembly described in the specific embodiment;

[0021] Figure 7 Top view schematic of the receiving seat described in the specific embodiment.

[0022] Explanation of the reference numerals in the drawings:

[0023] 1. Clamping mechanism; 10. Receiving seat; 100. Through hole; 101. Groove; 11. Hinge seat; 12. Pressing arm; 2. Tooling base plate; 3. Telescopic mechanism; 30. First airbag assembly; 300. Airbag; 3000. Buckle; 3010. Card slot; 301. First fixing ring; 302. Second fixing ring; 31. Second airbag assembly; 32. Shaft rod; 33. First end cover; 34. Second end cover; 340. First air hole; 35. Third end cover; 36. Fourth end cover; 360. Second air hole; 37. Connecting flange; 38. Flange; 4. Base; 5. Column; 6. Casting. Specific Embodiments

[0024] To describe in detail the technical content, structural features, achieved objectives and effects of the technical solution, the following is a detailed description in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] Please refer to Figures 1 to 7 as shown in the figure. In this embodiment, a casting clamping device used in a high-frequency vibration device is provided, including: a clamping mechanism 1, a tooling base plate 2, and a telescopic mechanism 3. The clamping mechanism 1 is fixed on the upper surface of the tooling base plate 2 by bolts. The telescopic mechanism 3 is located below the tooling base plate 2. The top of the telescopic mechanism 3 is fixedly connected to the lower surface of the tooling base plate 2. A fixed base 4 is provided at the bottom of the telescopic mechanism 3, and the bottom of the telescopic mechanism 3 is fixedly connected to the base 4. Vertical columns 5 are provided at both ends of the base 4. The columns 5 penetrate through the tooling base plate 2 and are movably connected to the clamping mechanism 1. The telescopic mechanism 3 realizes telescoping through inflation and deflation. When the telescopic mechanism 3 is telescoping, it can drive the tooling base plate 2 to move up and down along the axial direction of the column 5. When the tooling base plate 2 is moving up and down, the state of the clamping mechanism 1 can be changed to realize clamping and releasing of the casting.

[0026] In order to improve the seismic performance of the telescopic mechanism 3 and avoid interference from the dust environment, resulting in a reduction in its lifespan, in this embodiment, the telescopic mechanism 3 includes a first airbag assembly 30, a second airbag assembly 31, a shaft rod 32, a first end cover 33, a second end cover 34, a third end cover 35, a fourth end cover 36, and a connecting flange 37. The first airbag assembly 30 and the second airbag assembly 31 can bulge upward or deflate downward through inflation and deflation. The first end cover 33, the second end cover 34, the third end cover 35, and the fourth end cover 36 are flange-type structures with different diameters. The first end cover 33, the second end cover 34, the third end cover 35, and the fourth end cover 36 are sleeved on the shaft rod 32 from bottom to top in sequence. The first end cover 33 and the fourth end cover 36 are respectively fixed at both ends of the shaft rod 32, and the first end cover 33 is fixedly connected to the base 4 through a flange 38. The third end cover 35 is fixed on the second end cover 34. The second end cover 34 and the third end cover 35 are slidably connected to the shaft rod 32, and the second end cover 34 and the third end cover 35 can slide up and down on the shaft rod 32. The bottom and the top of the first airbag assembly 30 are respectively fixedly connected to the first end cover 33 and the second end cover 34 to form a sealed cavity. The bottom and the top of the second airbag assembly 31 are respectively fixedly connected to the third end cover 35 and the fourth end cover 36 to form a sealed cavity. The first airbag assembly 30 and the second airbag assembly 31 both surround the shaft rod 32 in a ring shape. The connecting flange 37 is a cylindrical structure, its bottom is fixedly connected to the second end cover 34 by bolts, and its top is fixedly connected to the lower surface of the tooling base plate 2 by bolts.

[0027] When the first airbag assembly 30 is inflated and the second airbag assembly 31 is deflated, the first airbag assembly 30 will bulge upward. Since the second end cap 34 and the third end cap 35 can slide relative to the shaft rod 32, the top of the first airbag assembly 30 will push against the second end cap 34 and move upward, driving the connection flange 37 fixedly connected to the tooling bottom plate 2 to move upward, thereby driving the tooling bottom plate 2 to move upward; when the second airbag assembly 31 is inflated and the first airbag assembly 30 is deflated, since the top of the second airbag assembly 31 is fixed, the second airbag assembly 31 will bulge downward, causing the third end cap 35 to move downward, and driving the connection flange 37 installed on the second end cap 34 to move downward, thereby driving the tooling bottom plate 2 to move downward.

[0028] To improve the sealing performance and seismic resistance of the first airbag assembly 30 and the second airbag assembly 31, both the first airbag assembly 30 and the second airbag assembly 31 are made of airbags 300, first fixing rings 301, and second fixing rings 302 with the same size and structure. The airbag 300 is made of an elastic material and has a circular ring structure. Ring-shaped buckles 3000 protruding outward are provided in the middle of both sides of the airbag 300. Card slots 3010 matching the buckles 3000 are provided on the first fixing ring 301 and the second fixing ring 302. The first fixing ring 301 and the second fixing ring 302 are engaged with the airbag 300 through the cooperation of the buckles 3000 and the card slots 3010 to form an integral structure.

[0029] When installing the first airbag assembly 30 and the second airbag assembly 31, the first fixing ring 301 of the first airbag assembly 30 is fixedly connected to the first end cap 33 by bolts, and the second fixing ring 302 of the first airbag assembly 30 is fixedly connected to the second end cap 34 by bolts; the first fixing ring 301 of the second airbag assembly 31 is fixedly connected to the third end cap 35 by bolts, and the second fixing ring 302 of the second airbag assembly 31 is fixedly connected to the fourth end cap 36 by bolts. Under the tightening action of the bolts, the airbag 300 will be in close contact with the end cap to form a sealed cavity.

[0030] To facilitate the robot in picking up and placing the casting 6, the clamping mechanism 1 of this embodiment is composed of a receiving seat 10, a hinge seat 11, and a pressing arm 12. The receiving seat 10 is fixed on both sides of the tooling bottom plate 2 by bolts, the hinge seat 11 is fixed on the receiving seat 10 by bolts, and one end of the pressing arm 12 is hinged to the hinge seat 11; a longitudinal through hole 100 is provided in the middle of the receiving seat 10, the column 5 passes through the through hole and is hinged to the middle of the pressing arm 12 through a hinge, and the receiving seat 10 is slidably connected to the column 5. When it is necessary to clamp the casting 6, the casting 6 is placed on the receiving seats 10 on both sides above the tooling bottom plate 2, and then the telescopic mechanism 3 is used to drive the tooling bottom plate 2 to move upward. During the upward movement of the tooling bottom plate 2, the receiving seat 10 will also slide upward relative to the column 5. Since one end of the pressing arm 12 is hinged to the hinge seat 11 provided on the bearing seat 10 and the middle of the pressing arm 12 is hinged to the end of the column 5, the other end of the pressing arm 12 will rotate downward to press the casting 6, realizing the clamping operation of the casting 6; when it is necessary to take out the casting 6, the telescopic mechanism 3 is used to drive the tooling bottom plate 2 to move downward, so that the end of the pressing arm 12 pressing the casting 6 can rotate upward to cancel the pressure and take out the casting 6. At the same time, in order to improve the stability of the casting 6 during clamping, a groove 101 for limiting the casting 6 is provided on the side of the receiving seat 10 opposite to the hinge seat 11.

[0031] In order to realize the inflation and deflation of the first airbag assembly 30 and the second airbag assembly 31, a first air hole 340 for the inflation and deflation of the first airbag assembly 30 is provided on the second end cover 34, and a second air hole 360 for the inflation and deflation of the second airbag assembly 31 is provided on the fourth end cover 36.

[0032] In order to improve the sealing performance of the first airbag assembly 30 and the second airbag assembly 31, sealing rings are provided at the joints of the second end cover 34, the third end cover 35 and the shaft rod 32 to prevent air leakage when the second end cover 34 and the third end cover 35 slide on the shaft rod 32.

[0033] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments of this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, and directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A casting clamping device used in a high-frequency vibration device, characterized in that: include: A clamping mechanism (1), a tooling base plate (2), and a telescopic mechanism (3), wherein the clamping mechanism (1) is arranged on the tooling base plate (2), the telescopic mechanism (3) is arranged below the tooling base plate (2), the top of the telescopic mechanism (3) is fixedly connected to the tooling base plate (2), the bottom of the telescopic mechanism (3) is provided with a base (4), both ends of the base (4) are provided with vertical columns (5), the columns (5) penetrate the tooling base plate (2) and are movably connected to the clamping mechanism (1), and the telescopic mechanism (3) drives the tooling base plate (2) to move up and down by telescoping, thereby driving the clamping mechanism (1) to clamp and loosen the casting.

2. The casting clamping device used in high-frequency vibration equipment according to claim 1, characterized in that: The telescopic mechanism (3) comprises a first airbag assembly (30), a second airbag assembly (31), a shaft (32), a first end cover (33), a second end cover (34), a third end cover (35), a fourth end cover (36) and a connecting flange (37), wherein the first end cover (33), the second end cover (34), the third end cover (35) and the fourth end cover (36) are sequentially sleeved on the shaft (32) from bottom to top, the first end cover (33) and the fourth end cover (36) are respectively fixed to two ends of the shaft (32), and the first end cover (33) is connected to the bottom through a flange (38). The third end cover (35) is fixedly connected to the second end cover (34), the second end cover (34) and the third end cover (35) are able to slide freely on the shaft (32); the first airbag assembly (30) is annularly fixed to the first end cover (33) and the second end cover (34), and the second airbag assembly (31) is annularly fixed to the third end cover (35) and the fourth end cover (36); the connecting flange (37) is arranged on the second end cover (34), and the top of the connecting flange (37) is fixedly connected to the tooling base plate (2).

3. The casting clamping device used in high-frequency vibration equipment according to claim 2, characterized in that: The first airbag assembly (30) and the second airbag assembly (31) have the same structural dimensions. The first airbag assembly (30) and the second airbag assembly (31) are both composed of an airbag (300), a first fixing ring (301), and a second fixing ring (302). The airbag (300) is annular. A buckle (3000) protruding outward is provided in the middle of two side surfaces of the airbag (300). A clamping groove (3010) matching the buckle (3000) is provided on the first fixing ring (301) and the second fixing ring (302). The first fixing ring (301) and the second fixing ring (302) are embedded with the airbag (300) through the cooperation between the buckle (3000) and the clamping groove (3010).

4. The casting clamping device used in high-frequency vibration equipment according to claim 3, characterized in that: The first airbag assembly (30) is fixedly connected to the first end cover (33) and the second end cover (34) via the first fixing ring (301) and the second fixing ring (302), respectively; and the second airbag assembly (31) is fixedly connected to the third end cover (35) and the fourth end cover (36) via the first fixing ring (301) and the second fixing ring (302), respectively.

5. The casting clamping device used in high-frequency vibration equipment according to claim 1, characterized in that: The clamping mechanism (1) comprises a receiving seat (10), a hinge seat (11) and a pressure arm (12); the receiving seat (10) is fixed on both sides of the tooling base plate (2); the hinge seat (11) is fixed on the receiving seat (10); one end of the pressure arm (12) is hinged on the hinge seat (11); a longitudinal through hole (100) is provided in the middle of the receiving seat (10); the column (5) passes through the through hole (100) and is hinged to the middle of the pressure arm (12) via a hinge.

6. The casting clamping device used in high-frequency vibration equipment according to claim 2, characterized in that: The second end cover (34) is provided with a first air hole (340) for inflating and deflation of the first airbag assembly (30), and the fourth end cover (36) is provided with a second air hole (360) for inflating and deflation of the second airbag assembly (31).

7. The casting clamping device used in high-frequency vibration equipment according to claim 3, characterized in that: The airbag (300) is made of elastic rubber material.

8. The casting clamping device used in a high-frequency vibration device according to claim 5, characterized in that: A groove (101) for limiting the position of the casting is provided on a side of the receiving seat (10) opposite to the hinge seat (11).

9. The casting clamping device used in high-frequency vibration equipment according to claim 2, characterized in that: Sealing rings are provided at the connection points between the second end cover (34), the third end cover (35) and the shaft rod (32).

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