Material taking equipment for metal casting and using method thereof

Abstract

The invention discloses material taking equipment for metal casting and a using method thereof, and relates to the field of metal casting, the material taking equipment comprises a support structure, a lifting mechanism is fixedly connected to the middle section of the top of the support structure, a guide rail structure is fixedly connected to the lower side of the lifting mechanism, and a holding mechanism is arranged in the guide rail structure. A third electric cylinder extends outwards to drive side frames below to do arc motion, a first side holding assembly moves in the same mode, so that the two side frames get close to the middle, a second electric cylinder is controlled to be started, the side frames are driven to conduct small-distance fine adjustment, the clamping position is selected according to the actual shape of the casting, and the two sides of the casting are clamped; material taking is completed under the action of the lifting mechanism, the casting is moved to the periphery of the mold through the holding mechanism, workers inspect the outer side of the casting, one-time material taking of the equipment is used for multiple follow-up work, operation steps are saved, the situation that the casting is collided due to multiple times of taking is avoided, meanwhile, the mold stripping and material taking time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, in particular to a material taking device for metal casting and a use method thereof. Background Art

[0002] Metal casting is an important manufacturing process, which heats the metal material to a molten state, and then pours the molten metal into the cavity composed of the upper and lower molds with the help of molds, casting equipment and other tools, and waits for it to cool and solidify to form parts or products of the desired shape; In the metal casting process, demolding and removing parts is a very critical step, which determines the quality and shape of the final product. The steps of demolding and removing parts are: waiting for cooling and solidification, demolding, inspection and trimming, and subsequent processing. Among them, inspection and trimming specifically require inspection after the casting is removed, including checking the surface quality, dimensional accuracy, etc. If there are defects or unqualified parts, they need to be trimmed.

[0003] However, in the prior art, most of the demolding and material removal of castings are done manually, and some are done by machines. First, the upper mold which is smaller and easier to remove is removed, and then the casting is taken out of the lower mold which is larger. However, both methods only remove the casting from the mold, and do not play an auxiliary role in the inspection and trimming steps. The casting needs to be taken out again, resulting in the risk of damage such as bumps. Summary of the invention

[0004] The object of the present invention is to provide a material removal device for metal casting and a method of using the same, so as to solve the problem that in the prior art proposed in the above background technology, most of the casting demolding and material removal methods are carried out manually, and some are carried out by machine equipment, but both of them only remove the casting from the mold, and do not play an auxiliary role in the inspection and trimming steps. The casting needs to be picked up again, resulting in the risk of damage such as bumps.

[0005] To achieve the above object, the present invention provides the following technical solution: a material taking device for metal casting, comprising a support structure, a lifting mechanism is fixedly connected to the top middle section of the support structure, a guide rail structure is fixedly connected to the lower side of the lifting mechanism, and a holding mechanism is arranged inside the guide rail structure; The lifting mechanism is used to control the height lifting of the guide rail structure and the holding mechanism, the guide rail structure is used to provide a mobile carrier for the holding mechanism, and the holding mechanism is used to hold the casting and transfer it; The holding mechanism includes a central frame, a first side holding assembly, a second side holding assembly and a moving assembly. The first side holding assembly and the second side holding assembly have the same structure, and the first side holding assembly and the second side holding assembly are respectively fixedly connected to the two ends of the central frame in a mirror-symmetrical form. The second side holding assembly is composed of a side frame, a concave wheel, a first side arm, a second side arm, a connecting plate, a second electric cylinder, a side frame, a rubber strip, a third electric cylinder and an angle plate. The third electric cylinder is fixedly installed inside the side frame, and the angle plate is rotatably connected to the movable end of the third electric cylinder. The other end of the angle plate is fixedly connected to the first side arm, and the two ends of the first side arm are respectively rotatably connected to the side frame and the connecting plate. The second electric cylinder is fixedly connected inside the middle groove of the connecting plate, the side frame is fixedly connected to the lower end of the second electric cylinder, and the rubber strip is fixedly connected to one side of the side frame.

[0006] Preferably, the first side arm and the second side arm are parallel to each other, and two ends of the second side arm are rotatably connected to the side frame and the connecting plate respectively.

[0007] Preferably, a plurality of groups of cam wheels are rotatably connected to the inside of the side frame, and the side frame is fixedly connected to one end of the center frame.

[0008] Preferably, the moving assembly comprises a threaded seat, a lead screw and a servo motor, the threaded seat is fixedly connected to the inside of the side frame, and the lead screw is threadedly connected to the inside of the threaded seat.

[0009] Preferably, the servo motor is transmission-connected to one end of the lead screw, and the other end of the lead screw is rotationally connected to an outer frame.

[0010] Preferably, both sides of the outer frame are fixedly connected with double-track members, the concave wheel is rollingly connected to the outer side of the double-track member, and the double-track member passes through the gap of the side frame.

[0011] Preferably, a base frame is fixedly connected to the upper side of the outer frame, a second slot plate is fixedly connected to the upper side of the base frame, and a scissor-type frame is slidably connected to the inner slot of the second slot plate.

[0012] Preferably, the other end of the lower side of the scissors-type frame is rotatably connected to the base frame, one end of the upper side of the scissors-type frame is rotatably connected to a connecting frame, the lower side of the connecting frame is fixedly connected to a first slot plate, and the other end of the upper side of the scissors-type frame is slidably connected to the inside of the slot of the first slot plate.

[0013] Preferably, a first electric cylinder is rotatably connected to the middle portion of the connecting frame, and a movable end of the first electric cylinder is rotatably connected to the middle axis of the scissor-type frame.

[0014] A method for using a material taking device for metal casting, comprising the following steps: S1. The support structure is installed on the outside of the casting mold so that the casting mold is located at one end of the inner part of the support structure, and the holding mechanism is located just above the casting mold; S2. After cooling for a period of time, remove the upper mold, control the active rod of the first electric cylinder to extend, and drive the guide structure and the holding mechanism to approach the casting; S3, the side frames of the first side hugging assembly and the second side hugging assembly move closer to the middle, and under the action of the rubber strip, clamp the two sides of the casting; S4, controlling the movable rod of the first electric cylinder to retract, and the lifting mechanism to retract upward, so as to remove the casting from the lower mold; S5. The servo motor starts, and the holding mechanism moves the casting horizontally to the outside of the mold, and the staff inspects the casting.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the third electric cylinder extends outward and pushes the angle plate, and the first side arm and the second side arm drive the side frame below to move in an arc, and the first side holding assembly moves in the same way, so that the two groups of side frames approach the middle, and the second electric cylinder is controlled to start, driving the side frame to make a small distance fine adjustment, and the clamping position is selected according to the actual shape of the casting. Under the action of the rubber strip, the two sides of the casting are clamped, and the material is taken under the action of the lifting mechanism. The holding mechanism moves the casting to the periphery of the mold, and the staff checks the outside of the casting. The equipment takes materials for multiple subsequent tasks at one time, saving operating steps, avoiding bumping the casting due to multiple taking, and at the same time shortening the time for demolding and taking materials, thereby improving production efficiency.

[0016] 2. In the present invention, the servo motor is started, and the servo motor drives the lead screw to rotate in the outer frame, the lead screw engages the threaded seat, and the threaded seat is subjected to the component of the engagement force, thereby moving along the length direction of the lead screw, while the side frame and the threaded seat are fixed, and the multiple groups of concave wheels inside the side frame are respectively stuck on the outside of the double-track member. Similarly, in the first side holding assembly, the middle frame, the first side holding assembly and the second side holding assembly are subjected to the force and move on the double-track member, thereby the holding mechanism moves the casting horizontally to the outside of the mold, and the casting is in a suspended state, which is convenient for the staff to check the outside of the casting.

[0017] 3. In the present invention, the molten metal is poured into the cavity composed of the upper and lower molds. After a period of time, the upper mold is opened after it cools and solidifies. Then, the movable rod of the first electric cylinder is controlled to extend, thereby pushing the intermediate shaft of the scissors frame, so that the scissors frame extends downward. Under the connection action of the base frame, the guide rail structure and the holding mechanism are driven to approach the casting. After the first side holding assembly and the second side holding assembly are gradually clamped, the movable rod of the first electric cylinder contracts, and the lifting mechanism contracts upward to take the casting out of the lower mold. The operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a material taking device for metal casting of the present invention; Figure 2 It is a front view of a material taking device for metal casting of the present invention; Figure 3 It is a schematic diagram of a partial three-dimensional structure of a material taking device for metal casting of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of a grabbing mechanism in a material grabbing device for metal casting of the present invention; Figure 5 It is a schematic diagram of a three-dimensional structure of a part of a grabbing mechanism in a material grabbing device for metal casting of the present invention; Figure 6 The three-dimensional structure diagram of the second side holding assembly of the holding mechanism in the metal casting material taking device of the present invention is shown in FIG. Figure 1 ; Figure 7 The three-dimensional structure diagram of the second side holding assembly of the holding mechanism in the metal casting material taking device of the present invention is shown in FIG. Figure 2 .

[0019] In the figure: 1. bracket structure; 2. lifting mechanism; 21. connecting frame; 22. first electric cylinder; 23. first slot plate; 24. scissor frame; 25. second slot plate; 26. bottom frame; 3. guide rail structure; 31. outer frame; 32. double rail member; 4. holding mechanism; 41. middle frame; 42. first side holding assembly; 43. second side holding assembly; 431. side frame; 432. concave wheel; 433. first side arm; 434. second side arm; 435. connecting plate; 436. second electric cylinder; 437. side frame; 438. rubber strip; 439. third electric cylinder; 440. angle plate; 44. threaded seat; 45. lead screw; 46. servo motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Reference Figure 1 - Figure 7As shown: a material taking device for metal casting, including a support structure 1, a lifting mechanism 2 is fixedly connected to the top middle section of the support structure 1, a guide rail structure 3 is fixedly connected to the lower side of the lifting mechanism 2, a holding mechanism 4 is arranged inside the guide rail structure 3, the lifting mechanism 2 is used to control the height lifting and lowering of the guide rail structure 3 and the holding mechanism 4, the guide rail structure 3 is used to provide a mobile carrier for the holding mechanism 4, the holding mechanism 4 is used to hold and transfer the casting, the holding mechanism 4 includes a center frame 41, a first side holding assembly 42, a second side holding assembly 43 and a moving assembly, the first side holding assembly 42 and the second side holding assembly 43 have the same structure, and the first side holding assembly 42 and the second side holding assembly 43 are respectively fixedly connected to the two ends of the center frame 41 in a mirror-symmetrical form, the second side holding assembly 43 is composed of a side frame 431, a concave wheel 432, a first side arm 433, a second side arm 434, a connecting plate 435, and a second electric cylinder The side frame 437 is fixedly connected to the lower end of the second electric cylinder 436, and the rubber strip 438 is fixedly connected to one side of the side frame 437. The first side arm 433 and the second side arm 434 are parallel to each other, and the two ends of the second side arm 434 are rotatably connected to the side frame 431 and the connecting plate 435 respectively. A plurality of groups of cam wheels 432 are rotatably connected to the inside of the side frame 431, and the side frame 431 is fixedly connected to one end of the center frame 41.

[0022] In this embodiment, after the lifting mechanism 2 drives the guide rail structure 3 and the holding mechanism 4 to approach the casting, the third electric cylinder 439 is controlled to work, and its movable rod extends outward and pushes the angle plate 440. The end of the angle plate 440 is fixed to one end of the first side arm 433, and the end of the first side arm 433 is rotatably installed on the lower side of the side frame 431. Under the force of the angle plate 440, the other end of the angle plate 440 applies a torque on the first side arm 433, so that the first side arm 433 moves in an arc around the connection point with the side frame 431, and the first side arm 433 and the second side arm 434 are parallel to each other, and the four connection points at both ends of the two form a parallelogram structure, and the two upper connection points of the two are connected to the side frame 431. These two connection points are always on the same horizontal line. During the arc movement of the first side arm 433 and the second side arm 434, the two lower connection points are also always on the same horizontal line, so the connecting plate 435 It always maintains a horizontal state and drives the side frame 437 below to move in an arc with the original posture. The structure of the first side holding component 42 is consistent with that of the second side holding component 43. The first side holding component 42 moves in the same way, so that the two groups of side frames 437 approach the middle, control the second electric cylinder 436 to start, and its movable rod extends downward for a certain distance, driving the side frame 437 to make small adjustments, and select the clamping position according to the actual shape of the casting. Under the action of the rubber strip 438, the two sides of the casting are clamped, and the material is taken under the action of the lifting mechanism 2. The holding mechanism 4 moves the casting to the periphery of the mold, and the staff inspects the surface quality, dimensional accuracy, etc. of the outer side of the casting. If defective or unqualified parts are found, they are repaired in time. The equipment takes materials once for multiple subsequent tasks, saves operating steps, avoids bumping the casting due to multiple taking, and shortens the time for demolding and taking materials, thereby improving production efficiency.

[0023] Embodiment 2: According to Figure 1 - Figure 6 As shown, the moving assembly includes a threaded seat 44, a lead screw 45 and a servo motor 46. The threaded seat 44 is fixedly connected to the inside of the side frame 431, the lead screw 45 is threadedly connected to the inside of the threaded seat 44, the servo motor 46 is transmission-connected to one end of the lead screw 45, and the other end of the lead screw 45 is rotatably connected to the outer frame 31. Both sides of the outer frame 31 are fixedly connected to the double-track member 32, the concave wheel 432 is rollingly connected to the outer side of the double-track member 32, and the double-track member 32 passes through the gap of the side frame 431.

[0024] In this embodiment, after the first side holding assembly 42 and the second side holding assembly 43 clamp the casting and, with the cooperation of the lifting mechanism 2, take the casting out of the lower mold, the servo motor 46 is started, and the servo motor 46 drives the lead screw 45 to rotate in the outer frame 31, the lead screw 45 engages the threaded seat 44, and the threaded seat 44 is subjected to the component of the engagement force, thereby moving along the length direction of the lead screw 45, while the side frame 431 and the threaded seat 44 are fixed, and the multiple groups of concave wheels 432 inside the side frame 431 are respectively stuck on the outside of the double-track member 32. Similarly, in the first side holding assembly 42, the middle frame 41, the first side holding assembly 42 and the second side holding assembly 43 are subjected to the force and move on the double-track member 32, thereby the holding mechanism 4 moves the casting horizontally to the outside of the mold, and the casting is in a suspended state, which is convenient for the staff to inspect the outside of the casting.

[0025] Embodiment 3: According to Figure 1 - Figure 3 As shown, the upper side of the outer frame 31 is fixedly connected to the base frame 26, the upper side of the base frame 26 is fixedly connected to the second slot plate 25, the inner slot of the second slot plate 25 is slidably connected to the scissors-type frame 24, the other end of the lower side of the scissors-type frame 24 is rotatably connected to the base frame 26, one end of the upper side of the scissors-type frame 24 is rotatably connected to the connecting frame 21, the lower side of the connecting frame 21 is fixedly connected to the first slot plate 23, the other end of the upper side of the scissors-type frame 24 is slidably connected to the inside of the slot of the first slot plate 23, the middle part of the connecting frame 21 is rotatably connected to the first electric cylinder 22, and the movable end of the first electric cylinder 22 is rotatably connected to the middle axis of the scissors-type frame 24.

[0026] In this embodiment, the molten metal is poured into the cavity formed by the upper and lower molds. After a period of time, when it cools and solidifies, the upper mold is opened, and then the movable rod of the first electric cylinder 22 is controlled to extend, thereby pushing the intermediate shaft of the scissor frame 24. The upper end thereof slides in the runway groove of the first groove plate 23, and the lower end thereof slides in the second groove plate 25, so that the scissor frame 24 extends downward, and under the connection action of the base frame 26, the guide rail structure 3 and the holding mechanism 4 are driven to approach the casting. After the first side holding assembly 42 and the second side holding assembly 43 gradually clamp, the movable rod of the first electric cylinder 22 contracts, and the lifting mechanism 2 contracts upward to take the casting out of the lower mold, which is easy to operate.

[0027] The use method and working principle of the device: When using the metal casting material taking equipment, the support structure 1 is installed on the outside of the casting mold so that the casting mold is located at one end of the inside of the support structure 1. In the initial state, the holding mechanism 4 is located at one end of the guide rail structure 3. At this time, the holding mechanism 4 is just above the casting mold. The molten metal is poured into the cavity composed of the upper and lower molds. After a period of time, when it cools and solidifies, the upper mold is opened, and then the movable rod of the first electric cylinder 22 is controlled to extend, thereby pushing the middle shaft of the scissor frame 24, and the upper end thereof slides in the runway groove of the first groove plate 23, and the lower end thereof slides in the second groove plate 25, so that the scissor frame 24 extends downward, and under the connection of the bottom frame 26, the guide rail structure 3 and the holding mechanism 4 are driven to approach the casting; Then, the third electric cylinder 439 is controlled to work, and its movable rod extends outward and pushes the angle plate 440. The end of the angle plate 440 is fixed to one end of the first side arm 433, and the end of the first side arm 433 is rotatably mounted on the lower side of the side frame 431. Under the force of the angle plate 440, the other end of the angle plate 440 applies a torque on the first side arm 433, so that the first side arm 433 moves in an arc around the connection point with the side frame 431, and the first side arm 433 and the second side arm 434 are parallel to each other, and the four connecting ends of the two sides are connected. The points form a parallelogram structure, driving the side frame 437 below to move in an arc with the original posture. The structure of the first side holding assembly 42 is consistent with that of the second side holding assembly 43. The first side holding assembly 42 moves in the same way, so that the two groups of side frames 437 move closer to the middle, and the second electric cylinder 436 is controlled to start. Its movable rod extends downward for a certain distance, driving the side frame 437 to make a small distance fine adjustment. The clamping position is selected according to the actual shape of the casting, and the two sides of the casting are clamped under the action of the rubber strip 438; Next, the movable rod of the first electric cylinder 22 contracts, and the lifting mechanism 2 contracts upward to remove the casting from the lower mold. Then, the servo motor 46 is started, and the servo motor 46 drives the screw 45 to rotate in the outer frame 31. The screw 45 engages the threaded seat 44, and the threaded seat 44 is subjected to the component of the engagement force, thereby moving along the length direction of the screw 45, while the side frame 431 and the threaded seat 44 are fixed, and the multiple sets of concave wheels 432 inside the side frame 431 are respectively stuck on the outside of the double-track member 32. Similarly, in the first side holding assembly 42, the middle frame 41, the first side holding assembly 42 and the second side holding assembly 43 are subjected to the force and move on the double-track member 32. Thus, the holding mechanism 4 moves horizontally with the casting to the outside of the mold. At this time, the casting is in a suspended state, and the staff inspects the outside of the casting.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material taking device for metal casting, comprising a support structure (1), characterized in that: A lifting mechanism (2) is fixedly connected to the top middle section of the support structure (1), a guide rail structure (3) is fixedly connected to the lower side of the lifting mechanism (2), and a grasping mechanism (4) is arranged inside the guide rail structure (3); The lifting mechanism (2) is used to control the height lifting of the guide rail structure (3) and the holding mechanism (4); the guide rail structure (3) is used to provide a mobile carrier for the holding mechanism (4); and the holding mechanism (4) is used to hold the casting and transfer it; The holding mechanism (4) comprises a central frame (41), a first side holding assembly (42), a second side holding assembly (43) and a moving assembly. The first side holding assembly (42) and the second side holding assembly (43) have the same structure, and the first side holding assembly (42) and the second side holding assembly (43) are respectively fixedly connected to two ends of the central frame (41) in a mirror-symmetrical manner. The second side holding assembly (43) comprises a side frame (431), a concave wheel (432), a first side arm (433), a second side arm (434), a connecting plate (435), a second electric cylinder (436), a side frame (437), a rubber strip (438), a third electric cylinder (439) and a folding plate ( The third electric cylinder (439) is fixedly mounted inside the side frame (431), the angle plate (440) is rotatably connected to the movable end of the third electric cylinder (439), the other end of the angle plate (440) is fixedly connected to the first side arm (433), the two ends of the first side arm (433) are rotatably connected to the side frame (431) and the connecting plate (435), the second electric cylinder (436) is fixedly connected inside the middle groove of the connecting plate (435), the side frame (437) is fixedly connected to the lower end of the second electric cylinder (436), and the rubber strip (438) is fixedly connected to one side of the side frame (437).

2. A metal casting material taking device according to claim 1, characterized in that: The first side arm (433) and the second side arm (434) are parallel to each other, and two ends of the second side arm (434) are rotatably connected to the side frame (431) and the connecting plate (435) respectively.

3. A metal casting material taking device according to claim 2, characterized in that: A plurality of groups of concave wheels (432) are rotatably connected to the inside of the side frame (431), and the side frame (431) is fixedly connected to one end of the middle frame (41).

4. A metal casting material taking device according to claim 3, characterized in that: The moving assembly comprises a threaded seat (44), a lead screw (45) and a servo motor (46); the threaded seat (44) is fixedly connected to the inside of the side frame (431); and the lead screw (45) is threadedly connected to the inside of the threaded seat (44).

5. The metal casting material taking device according to claim 4, characterized in that: The servo motor (46) is drivingly connected to one end of the lead screw (45), and the other end of the lead screw (45) is rotatably connected to the outer frame (31).

6. A metal casting material taking device according to claim 5, characterized in that: Double-track members (32) are fixedly connected to both sides of the outer frame (31); the concave wheel (432) is rollingly connected to the outer side of the double-track member (32); and the double-track member (32) passes through the gap of the side frame (431).

7. A metal casting material taking device according to claim 6, characterized in that: The upper side of the outer frame (31) is fixedly connected to a bottom frame (26), the upper side of the bottom frame (26) is fixedly connected to a second slot plate (25), and the inner slot of the second slot plate (25) is slidably connected to a scissor-type frame (24).

8. The metal casting material taking device according to claim 7, characterized in that: The other end of the lower side of the scissor-type frame (24) is rotatably connected to the base frame (26), one end of the upper side of the scissor-type frame (24) is rotatably connected to a connecting frame (21), the lower side of the connecting frame (21) is fixedly connected to a first slot plate (23), and the other end of the upper side of the scissor-type frame (24) is slidably connected to the inside of the slot of the first slot plate (23).

9. The metal casting material taking device according to claim 8, characterized in that: The middle part of the connecting frame (21) is rotatably connected to a first electric cylinder (22), and the movable end of the first electric cylinder (22) is rotatably connected to the middle axis of the scissor-type frame (24).

10. A method for using a material taking device for metal casting, characterized in that: A metal casting material taking device according to any one of claims 1 to 9 is used, which comprises the following steps: S1, the support structure (1) is installed on the outside of the casting mold, so that the casting mold is located at one end of the inside of the support structure (1), and the holding mechanism (4) is located just above the casting mold; S2, after cooling for a period of time, the upper mold is removed, and the movable rod of the first electric cylinder (22) is controlled to extend, thereby driving the guide rail structure (3) and the holding mechanism (4) to approach the casting; S3, the side frames (437) of the first side-embracing assembly (42) and the second side-embracing assembly (43) are moved toward the middle, and under the action of the rubber strip (438), the two sides of the casting are clamped; S4, controlling the movable rod of the first electric cylinder (22) to retract, and the lifting mechanism (2) to retract upward, so as to remove the casting from the lower mold; S5. The servo motor (46) is started, and the holding mechanism (4) moves the casting laterally to the outside of the mold, and the staff inspects the casting.

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