Automatic sand core grabbing device

Abstract

The utility model relates to the technical field of sand core machining equipment, in particular to an automatic sand core grabbing device which comprises a supporting structure, a driving structure and a grabbing assembly used for grabbing a sand core. The first connecting plate and the second connecting plate are of flat plate structures which are parallel to each other; multiple groups of connecting columns are vertically arranged; the push cylinder is of a cylindrical structure; the push plate is parallel to the first connecting plate and the second connecting plate; a plurality of groups of reverse thrust springs are arranged at the bottom of the push plate; the other ends of the reverse thrust springs are fixed on the upper surface of the second connecting plate; the grabbing assembly is fixed to the bottom of the push plate. The transmission assembly drives the supporting structure to move to a designated position, the grabbing assembly is driven by the driving structure to grab the sand core and then transport the sand core to the designated position, and the sand core is put down. According to the sand core grabbing device, the grabbing assembly is controlled by the mechanical arm to run to the designated position to grab the sand core and then transport the sand core, manual operation is replaced, the risk that workers are scalded by a mold is avoided, and meanwhile the manual labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand core processing equipment, in particular to an automatic sand core grabbing device. Background Art

[0002] In the traditional casting process, it is necessary for personnel to take out the sand core from the mold, repair it and then transfer it to the casting process, and then place the sand core in the mold for casting by personnel. With the growing new energy market, the company is gradually transforming from the traditional internal combustion engine industry to the new energy industry. When facing the product development in the new energy industry, it is found that the structures of new energy products are often more complex than those of traditional internal combustion engine products. When facing some products with complex structures and large sizes, personnel are easily scalded by the sand core when taking it. There is also a risk of being scalded by the mold when placing the sand core during the casting process, and the labor intensity of personnel is very high. When producing products with multiple sand cores, it is also easy to miss placing the sand core, resulting in unqualified cast products, and the mold is also prone to aluminum leakage. The safety risk of personnel's work is relatively high, and the production efficiency is also very low. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the problems in the background art, and proposes an automatic sand core grabbing device. The grabbing component is controlled by a manipulator to run to a specified position to grab the sand core and then transport it, replacing manual operation, avoiding the risk of employees being scalded by the mold, and at the same time reducing the manual labor intensity.

[0004] The technical solution of the utility model is an automatic sand core grabbing device, which includes a support structure composed of a first connecting plate, a second connecting plate and a connecting column, a driving structure composed of a push cylinder and a push plate, and a grabbing component for grabbing the sand core;

[0005] The first connecting plate and the second connecting plate are parallel flat plate structures; multiple groups of connecting columns are vertically arranged to play a supporting role between the first connecting plate and the second connecting plate;

[0006] An opening for the transmission and installation of the driving structure is reserved at the top of the first connecting plate;

[0007] The push cylinder is a cylindrical structure, one end of which extends out from the opening to be connected with an external transmission component, and the bottom extends into the space between the first connecting plate and the second connecting plate and is connected with the push plate; the push plate is parallel to both the first connecting plate and the second connecting plate, and does not contact the connecting column during the up and down movement of the push plate;

[0008] A number of anti-push springs are arranged at the bottom of the push plate, and the other ends of the anti-push springs are fixed on the upper surface of the second connecting plate;

[0009] The grabbing component is fixed at the bottom of the push plate; the transmission component drives the support structure to move to a specified position, and the driving structure drives the grabbing component to grab the sand core and transport it to a specified position, and then put down the sand core.

[0010] Preferably, the transmission component is a manipulator.

[0011] Preferably, a plurality of grasping components are provided and are respectively clamped at different positions on the core to grasp the core.

[0012] Preferably, the grasping component includes an outer guiding column and an inner push rod; an opening for installing a jaw is reserved at the bottom of the guiding column; the jaws are arranged in pairs and are fixed in the opening through fastening bolts;

[0013] The push rod is inserted into the guiding column, and its bottom abuts against the jaw. The opening and closing of the jaw are controlled by the up and down movement of the push rod.

[0014] Preferably, the jaws arranged in pairs are installed at the opening; both ends of the fastening bolt are fixed to the outer shell of the guiding column, and the middle part passes through the through hole on the jaw, limiting the jaw in the opening, and the jaw rotates around the fastening bolt.

[0015] Preferably, a tension spring with the same number as the jaws is arranged in the opening; a tension spring is installed at the top of each jaw; the other end of the tension spring is fixed on the guiding column.

[0016] Preferably, an inclined slope is arranged at one end of the jaw close to the push rod; when the push rod moves downward, it contacts the slope and pushes the jaws to open to both sides; at the same time, the tension spring stores elastic potential energy.

[0017] Preferably, an anti-slip convex part is arranged on the inner side wall of the jaw to increase the friction force at the contact part with the core.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] The utility model forms an automatic grasping device through the combination of the set support structure, drive structure and grasping component; the whole device is moved to the designated position through the cooperation of the manipulator, and the opening and closing of the jaw are controlled by the up and down movement of the push cylinder; thus, the core is accurately clamped and conveniently moved to the designated position; the utility model can set different numbers of grasping components for the clamping position according to the model of the core, and only needs simple modification to be applicable to products of different models; compared with the manual operation mode in the prior art, the risk of employees being scalded by the mold is avoided, and at the same time, the labor intensity of manual work is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the grasping device clamping in the embodiment of the utility model;

[0021] Figure 2 It is a schematic structural diagram of the grasping device in the embodiment of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the grasping component in the embodiment of the present utility model;

[0023] Figure 4 This is a partially enlarged view inside the grasping component in the embodiment of the present utility model.

[0024] Reference numerals: 1, first connecting plate; 2, second connecting plate; 3, connecting column; 4, pushing cylinder; 5, pushing plate; 6, grasping component; 61, guiding column; 62, fastening bolt; 63, clamping jaw; 64, opening; 65, push rod; 66, tension spring; 7, core; 8, anti-pushing spring. Detailed implementation manners

[0025] Embodiment 1

[0026] An automatic core grasping device proposed by the present utility model, as Figure 1 shown, includes a support structure composed of a first connecting plate 1, a second connecting plate 2 and a connecting column 3, a driving structure composed of a pushing cylinder 4 and a pushing plate 5, and a grasping component 6 for grasping the core 7; the first connecting plate 1 and the second connecting plate 2 are parallel flat plate structures; a plurality of groups of connecting columns 3 are vertically arranged to play a supporting role between the first connecting plate 1 and the second connecting plate 2; an opening for the transmission and installation of the driving structure is reserved at the top of the first connecting plate 1.

[0027] As Figure 2 shown, the pushing cylinder 4 is a cylindrical structure, one end of which extends out from the opening and is connected to an external transmission component, and the bottom extends into the space between the first connecting plate 1 and the second connecting plate 2 and is connected to the pushing plate 5; the pushing plate 5 is arranged parallel to both the first connecting plate 1 and the second connecting plate 2, and does not contact the connecting column 3 during the up and down movement of the pushing plate 5; a plurality of groups of anti-pushing springs 8 are arranged at the bottom of the pushing plate 5, and the other ends of the anti-pushing springs 8 are fixed on the upper surface of the second connecting plate 2; the grasping component 6 is fixed at the bottom of the pushing plate 5; the transmission component drives the support structure to move to a specified position, drives the grasping component 6 to grasp the core 7 through the driving structure, and then transports the core 7 to a specified position and puts down the core 7.

[0028] In this embodiment, the transmission component is a manipulator. Three grasping components 6 are arranged to clamp different positions on the core 7 to grasp the core 7. During actual use, the manipulator is fixed to the first connecting plate 1, so as to conveniently move the entire grasping device to a specified position above the core 7; then the manipulator pushes the pushing cylinder 4 to move downward, the pushing cylinder 4 drives the pushing plate 5 to move downward, and further drives the push rod 65 to move downward along the inner side wall of the guiding column 61, and the anti-pushing spring 8 remains in a compressed state;

[0029] The grasping component 6 includes an outer guiding column 61 and an inner push rod 65; an opening 64 for installing the jaw 63 is reserved at the bottom of the guiding column 61; the jaws 63 are arranged in pairs and fixed in the opening 64 through fastening bolts 62; the push rod 65 is inserted into the guiding column 61, and its bottom abuts against the jaws 63; the jaws 63 arranged in pairs are installed at the opening 64; both ends of the fastening bolt 62 are fixed to the outer shell of the guiding column 61, and the middle part passes through the through hole on the jaw 63 to limit the jaw 63 in the opening 64, and the jaw 63 rotates around the fastening bolt 62. Tensile springs 66 with the same number as the jaws 63 are arranged in the opening 64; a tensile spring 66 is installed at the top of each jaw 63; the other end of the tensile spring 66 is fixed on the guiding column 61.

[0030] During the downward movement of the push rod 65, the jaws 63 will be squeezed, so that the jaws 63 rotate around the fastening bolt 62 and remain in an open state; at the same time, the tensile spring 66 stores elastic potential energy; then the push rod 65 resets, and under the action of the tensile spring 66 and the anti-push spring 8, the jaws 63 clamp the core 7; after the core 7 is transferred to the designated position by the manipulator, the push cylinder 4 moves downward again to open the jaws 63, so as to put down the core 7.

[0031] In an alternative embodiment, an inclined surface is provided at one end of the jaw 63 close to the push rod 65; the push rod 65 moves downward, contacts the inclined surface, and pushes the jaws 63 to open to both sides; at the same time, the tensile spring 66 stores elastic potential energy. Anti-slip convex portions are provided on the inner side wall of the jaw 63 to increase the friction force at the contact part with the core 7.

[0032] In this embodiment, due to the inclined surface provided on the jaw 63, when the push rod 65 moves downward, it slides along the inclined surface, and the inclined surface itself has a certain guiding effect; making the opening of the jaw 63 smoother; in addition, the anti-slip convex portions provided on the inner side wall of the jaw 63 can increase the friction force at the contact part with the core 7, playing an anti-slip role.

[0033] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. A sand core automatic grabbing device, characterized in that: It comprises a support structure consisting of a first connecting plate (1), a second connecting plate (2) and a connecting column (3), a driving structure consisting of a push cylinder (4) and a push plate (5), and a grabbing assembly (6) for grabbing a sand core (7); The first connecting plate (1) and the second connecting plate (2) are parallel flat plate structures; a plurality of connecting columns (3) are vertically arranged in groups, and are used to play a supporting role between the first connecting plate (1) and the second connecting plate (2); An opening is reserved at the top of the first connecting plate (1) for transmission and installation of the driving structure; The push cylinder (4) is a cylindrical structure, one end of which extends from the opening to be connected to the external transmission component, and the bottom extends between the first connecting plate (1) and the second connecting plate (2) to be connected to the push plate (5); the push plate (5) is arranged parallel to the first connecting plate (1) and the second connecting plate (2), and the push plate (5) does not contact the connecting column (3) during the upward and downward movement. A plurality of sets of reverse thrust springs (8) are arranged at the bottom of the push plate (5), and the other ends of the reverse thrust springs (8) are fixed to the upper surface of the second connecting plate (2); The grabbing assembly (6) is fixed at the bottom of the push plate (5); the transmission assembly drives the supporting structure to move to a specified position, and the grabbing assembly (6) is driven by the driving structure to grab the sand core (7) and transport it to the specified position, and then put down the sand core (7).

2. The automatic sand core grabbing device according to claim 1, characterized in that: The transmission component is a manipulator.

3. The automatic sand core grabbing device according to claim 1, characterized in that: The grabbing assembly (6) is provided with a plurality of clamps respectively clamped at different positions on the sand core (7) so as to grab the sand core (7).

4. The automatic sand core grabbing device according to claim 1, characterized in that: The grab assembly (6) comprises an outermost guide column (61) and an inner push rod (65); an opening (64) for installing a clamping claw (63) is reserved at the bottom of the guide column (61); the clamping claw (63) is arranged in pairs and fixed in the opening (64) by a fastening bolt (62); The push rod (65) is inserted into the guide column (61), and the bottom of the push rod (65) is in contact with the clamping claw (63). The clamping claw (63) is controlled to open or clamp by the up and down movement of the push rod (65).

5. The automatic sand core grabbing device according to claim 4, characterized in that: The clamping jaws (63) are arranged in pairs and installed at the opening (64); both ends of the fastening bolt (62) are fixed to the outer shell of the guide column (61), and the middle part passes through the through hole on the clamping jaw (63), so that the clamping jaw (63) is confined in the opening (64), and the clamping jaw (63) rotates around the fastening bolt (62) as the axis.

6. The automatic sand core grabbing device according to claim 4, characterized in that: The same number of tension springs (66) as the number of clamping jaws (63) are arranged in the opening (64); a tension spring (66) is installed on the top of each clamping jaw (63); and the other end of the tension spring (66) is fixed on the guide column (61).

7. The automatic sand core grabbing device according to claim 6, characterized in that: An inclined surface is arranged at one end of the clamping jaw (63) close to the push rod (65); the push rod (65) moves downward, contacts the inclined surface, and pushes the clamping jaw (63) to open to both sides; at the same time, the tension spring (66) stores elastic potential energy.

8. The automatic sand core grabbing device according to claim 7, characterized in that: The inner side wall of the clamping jaw (63) is provided with an anti-slip protrusion for increasing the friction force of the contact portion with the sand core (7).

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