An auxiliary positioning device for a sand core mold

Abstract

The present invention provides an auxiliary positioning device for a sand core mold. By setting a base, a telescopic block, a rotating block, a locking member and a conversion mechanism, when people install the sand core mold, they place the sand core mold on the telescopic block, and the size of the telescopic block is a unit size. The sand core mold is placed on the corresponding number of telescopic blocks. While the telescopic block descends, the conversion mechanism drives the rotating block to rotate and the rotating block rotates and is stuck in the rotating slot in the limit slot to hold the sand core mold. At the same time, the telescopic blocks that do not shrink around the sand core mold abut against the outer periphery of the sand core mold, which can limit the positions around the sand core mold, ensure the position of the sand core mold, and there is no need to measure multiple times to ensure the position of the sand core mold, saving people's measurement time, improving people's work efficiency, and ensuring people's production.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary positioning devices, and in particular to an auxiliary positioning device for a sand core mold. Background Art

[0002] When installing a sand core mold, it generally requires multiple people to coordinate the assembly. Some molds are relatively large in size, making adjustment inconvenient. Moreover, the size of the mold is specific, and the position of the sand core mold needs to be finely adjusted during installation. And when making fine adjustments, people need to make multiple precise measurements to ensure the position of the sand core mold, which will lead to low work efficiency and affect people's production. Summary of the Invention

[0003] Based on the technical problems existing in the background art, the present invention proposes an auxiliary positioning device for a sand core mold.

[0004] An auxiliary positioning device for a sand core mold proposed by the present invention includes a base. An embedding groove is formed in the base, and a plurality of telescopic blocks are installed in the embedding groove and can move up and down on the base. A locking member for locking the position of the telescopic block on the base is installed on the base. A rotating block is installed on the telescopic block, and there is a gap between the rotating block and the telescopic block, and a conversion mechanism for driving the rotating block to rotate is provided. The conversion mechanism is used to convert the lifting movement of the telescopic block into the rotation of the rotating block on the telescopic block.

[0005] Preferably, the conversion mechanism includes a rotating shaft rod and a limiting shaft; the rotating shaft rod penetrates through the telescopic block and is rotatably connected to the telescopic block. One end of the rotating shaft rod is connected to the rotating block, and the end of the rotating shaft rod away from the rotating block penetrates through the telescopic block. The limiting shaft is connected to the outer circumference of the end of the rotating shaft rod away from the rotating block. A rotating limiting groove slidably matched with the limiting shaft is formed in the base, and the rotating limiting groove includes a vertical section and an inclined curve section.

[0006] Preferably, a limiting positioning block is connected to the telescopic block, and the height of the limiting positioning block is less than the height of the gap between the telescopic block and the rotating block.

[0007] Preferably, a prism is connected to the side of the telescopic block away from the rotating block. An anti - detachment sliding groove slidably matched with the prism is formed in the embedding groove, and a first spring for making the prism have a tendency to move out of the anti - detachment sliding groove is arranged in the anti - detachment sliding groove. The rotating shaft rod penetrates through the telescopic block and the prism.

[0008] Preferably, the locking member includes an electric push rod and a plug pin; the plug pin is installed on the output shaft of the electric push rod, the electric push rod is installed in the base, and a locking hole adapted to the plug pin is formed on the outer wall of the prism.

[0009] Preferably, a hydraulic cylinder is installed around the embedding groove on the base, a clamping support is installed on the output shaft of the hydraulic cylinder, a clamping plate is slidably installed on the clamping support, the clamping plate is slidably connected to the clamping support through an electric slide rail, a reinforcement slide groove is opened on the side of the clamping plate close to the clamping support, and the clamping support is connected to a limiting slider that slidably cooperates with the reinforcement slide groove.

[0010] Preferably, the bottom of the clamping plate is slidably connected to a side support plate, and a fastening mechanism capable of locking the side support plate in position on the clamping plate is also installed on the clamping plate.

[0011] Preferably, the side abutment plate is connected with a displacement slider, the clamping plate is provided with a limiting slot slidably matched with the displacement slider, a No. 2 spring is arranged in the limiting slot, and one end of the No. 2 spring is connected with the displacement slider.

[0012] Preferably, the fastening mechanism includes a threaded rod, a threaded cap and a manual screw block; the No. 2 spring is connected to the side support plate, the clamping plate is provided with a threaded rod that slides with the No. 2 spring, the threaded cap is threadedly mounted on the end of the threaded rod away from the side support plate, the manual screw block is connected to the threaded cap via a connecting rod, and the clamping plate is provided with a fastening groove that slides with the threaded cap.

[0013] Preferably, the cross-section of the telescopic block is rectangular.

[0014] The invention provides an auxiliary positioning device for a sand core mold, which has the following beneficial effects: through the provided base, telescopic block, rotating clamp block, locking piece and conversion mechanism, when people install the sand core mold, they place the sand core mold on the telescopic block, and the size of the telescopic block is a unit size, and the sand core mold is placed on the corresponding number of telescopic blocks, and the position of the sand core mold is arranged. Under the action of the gravity of the sand core mold, the sand core mold below is lowered, and at the same time, the rotating clamp block on the telescopic block is inserted into the corresponding limiting groove at the bottom of the sand core mold. When the telescopic block is lowered, the conversion mechanism is used to transmit the rotating clamp block to rotate and the rotating clamp block is rotated and clamped into the rotating clamp groove in the limiting groove to clamp the sand core mold. At the same time, the telescopic block that is not contracted around the sand core mold presses against the outer periphery of the sand core mold, which can limit the position of the sand core mold around and ensure the position of the sand core mold. There is no need to perform multiple measurements to ensure the position of the sand core mold, which saves people's measurement time, improves people's work efficiency, and ensures people's production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a sand core mold auxiliary positioning device proposed by the present invention;

[0016] Figure 2Partial cross-sectional view of an auxiliary positioning device for a sand core mold proposed by the present invention;

[0017] Figure 3 Schematic structural diagram of a telescopic block in an auxiliary positioning device for a sand core mold proposed by the present invention;

[0018] Figure 4 Schematic structural diagram of a rotating clamping block in an auxiliary positioning device for a sand core mold proposed by the present invention;

[0019] Figure 5 Schematic structural diagram of a pressing plate in an auxiliary positioning device for a sand core mold proposed by the present invention;

[0020] Figure 6 Schematic structural diagram of a side abutting plate in an auxiliary positioning device for a sand core mold proposed by the present invention;

[0021] Figure 7 Cross-sectional view of a pressing plate in an auxiliary positioning device for a sand core mold proposed by the present invention;

[0022] Figure 8 Cross-sectional view of a pressing plate in an auxiliary positioning device for a sand core mold proposed by the present invention;

[0023] Figure 9 Schematic structural diagram of a rotating limit groove in an auxiliary positioning device for a sand core mold proposed by the present invention. Detailed implementation method

[0024] Referring to Figures 1-9 , the present invention proposes an auxiliary positioning device for a sand core mold, including a base 1, wherein:

[0025] An embedding groove is formed on the base 1, and a plurality of telescopic blocks 2 are installed in the embedding groove and the telescopic blocks 2 can move up and down on the base 1. A locking member for locking the position of the telescopic blocks 2 on the base 1 is installed on the base 1. A rotating clamping block 3 is installed on the telescopic blocks 2, and there is a gap between the rotating clamping block 3 and the telescopic blocks 2 and a conversion mechanism for driving the rotation of the rotating clamping block 3. The conversion mechanism is used to convert the up and down movement of the telescopic blocks 2 into the rotation of the rotating clamping block 3 on the telescopic blocks 2. When installing the sand core mold, people place the sand core mold on the corresponding number of telescopic blocks 2. Due to the gravity of the sand core mold, the corresponding telescopic blocks 2 below it will be compressed. At the same time, the rotating clamping blocks 3 on the telescopic blocks 2 are inserted into the corresponding limit grooves. While the telescopic blocks 2 are descending, the conversion mechanism drives the rotation of the rotating clamping blocks 3 and they are clamped into the corresponding rotating clamping grooves, which can clamp the bottom of the sand core mold and prevent the bottom of the sand core mold from falling off the telescopic blocks 2. Moreover, the periphery of the sand core mold is abutted against the outer walls of the sand core mold by the telescopic blocks 2, which can limit the position of the sand core mold. Finally, people fasten the sand core mold.

[0026] In a specific embodiment, the conversion mechanism includes a rotating shaft rod 4 and a limiting shaft 5; the rotating shaft rod 4 penetrates through the telescopic block 2 and is rotatably connected to the telescopic block 2. One end of the rotating shaft rod 4 is connected to the rotating clamping block 3, and the end of the rotating shaft rod 4 away from the rotating clamping block 3 penetrates through the telescopic block 2. The limiting shaft 5 is connected to the outer periphery of the end of the rotating shaft rod 4 away from the rotating clamping block 3. A rotating limiting groove 6 that is slidably matched with the limiting shaft 5 is formed in the base 1. The rotating limiting groove 6 includes a vertical section and an inclined curve section; when the telescopic block 2 descends, it will drive the rotating shaft rod 4 to descend synchronously. When the rotating shaft rod 4 descends, it drives the limiting shaft 5 to descend and slide along the rotating limiting groove 6. When the limiting shaft 5 enters the inclined curve section of the rotating limiting groove 6, the limiting shaft 5 descends and rotates along with the rotating limiting groove 6, which can drive the rotating shaft rod 4 and the rotating clamping block 3 to rotate, and drive the rotating clamping block 3 to rotate and snap into the corresponding rotating clamping groove to clamp the bottom of the sand core mold. Moreover, multiple telescopic blocks 2 are arranged in a matrix, and adjacent telescopic blocks 2 are in contact with each other.

[0027] In a specific embodiment, a limiting positioning block 7 is connected to the telescopic block 2. The height of the limiting positioning block 7 is less than the gap height between the telescopic block 2 and the rotating clamping block 3; when installing the sand core mold, the limiting positioning block 7 on the telescopic block 2 can be inserted into the limiting positioning hole at the bottom of the sand core mold by the limiting positioning block 7, which can limit the position of the bottom of the sand core mold, reduce the time for people to measure and adjust, improve people's work efficiency, and at the same time, the height of the limiting positioning block 7 is not higher than the gap between the rotating clamping block 3 and the telescopic block 2, and the rotating clamping block 3 will not be affected by the rotation of the limiting positioning block 7 when rotating.

[0028] In a specific embodiment, a polygonal prism 8 is connected to the side of the telescopic block 2 away from the rotating clamping block 3. An anti - detachment sliding groove that is slidably matched with the polygonal prism 8 is formed in the embedding groove. A first spring 9 that makes the polygonal prism 8 tend to move out of the anti - detachment sliding groove is arranged in the anti - detachment sliding groove. The rotating shaft rod 4 penetrates through the telescopic block 2 and the polygonal prism 8; when the telescopic block 2 descends under the influence of the gravity of the sand core mold, the straightness of the descent of the telescopic block 2 will be limited by the polygonal prism 8, reducing the situation of deviation of the telescopic block 2. When disassembling the sand core mold, the first spring 9 will push up the polygonal prism 8. When the telescopic block 2 rises, it will drive the rotating shaft rod 4 to rotate, so that the limiting shaft 5 slides in the rotating limiting groove 6, and the rotating clamping block 3 rotates out of the rotating clamping groove, and people can directly remove the sand core mold.

[0029] In a specific embodiment, the locking member includes an electric push rod 10 and a bolt; the bolt is installed on the output shaft of the electric push rod 10, the electric push rod 10 is installed in the base 1, and a locking hole adapted to the bolt is formed on the outer wall of the polygonal prism 8; when the telescopic block 2 descends to a certain position, the electric push rod 10 works to push the bolt into the corresponding locking hole, which can limit the position of the polygonal prism 8 and ensure the position of the bottom of the sand core mold.

[0030] In a specific embodiment, hydraulic cylinders 11 are installed along the periphery of the embedding groove on the base 1, a pressing support plate 12 is installed on the output shaft of the hydraulic cylinder 11, a pressing plate 13 is slidably installed on the pressing support plate 12, the pressing plate 13 is slidably connected to the pressing support plate 12 through an electric slide rail, a reinforcing sliding groove is formed on the side of the pressing plate 13 close to the pressing support plate 12, and the pressing support plate 12 is connected with a limiting slider slidably matched with the reinforcing sliding groove; after restricting the position of the sand core mold, people extend the pressing plate 13 above the sand core mold through the electric slide rail, and then drive the pressing support plate 12 to descend through the work of the hydraulic cylinder 11 to drive the pressing plate 13 to descend and press on the sand core mold, which can increase the firmness of the installation of the sand core mold. At the same time, the pressing plate 13 is affected by the limiting slider to increase the firmness of the pressing plate 13.

[0031] In a specific embodiment, a side pressing plate 14 is slidably connected to the bottom of the pressing plate 13, and a fastening mechanism capable of locking the position of the side pressing plate 14 on the pressing plate 13 is also installed on the pressing plate 13; when the pressing plate 13 presses on the sand core mold, people can make the side pressing plate 14 abut against the upper side wall of the sand core mold, which can limit the position of the upper side wall of the sand core mold to a certain extent. At the same time, the position of the side pressing plate 14 is fixed through the fastening mechanism, which can ensure the restriction of the position of the sand core mold.

[0032] In a specific embodiment, a displacement slider 15 is connected to the side pressing plate 14, a limiting sliding groove slidably matched with the displacement slider 15 is formed on the pressing plate 13, and a second spring 16 is arranged in the limiting sliding groove. One end of the second spring 16 is connected to the displacement slider 15; when the side pressing plate 14 slides on the pressing plate 13, the displacement slider 15 can slide on the pressing plate 13, and at the same time, the second spring 16 can push the displacement slider 15 to slide in the limiting sliding groove, so that the side pressing plate 14 can abut and fit against the side wall of the sand core mold.

[0033] In a specific embodiment, the fastening mechanism includes a threaded rod 17, a threaded nut 18 and a manual turning block 19; the second spring 16 is connected to the side abutting plate 14, and a threaded rod 17 that is slidably engaged with the second spring 16 is provided on the pressing plate 13. The threaded nut 18 is threadedly sleeved on one end of the threaded rod 17 away from the side abutting plate 14, and the manual turning block 19 is connected to the threaded nut 18 through a connecting rod. A fastening chute that is slidably engaged with the threaded nut 18 is provided on the pressing plate 13. When the side abutting plate 14 abuts against the side wall of the sand core mold, people can rotate the manual turning block 19 to drive the threaded nut 18 to tighten on the threaded rod 17, so that the threaded nut 18 presses on the pressing plate 13, and the position of the side abutting plate 14 can be restricted.

[0034] In a specific embodiment, the cross-sectional view of the telescopic block 2 is rectangular; the telescopic block 2 is preferably a regular quadrangular prism, and the side length of the telescopic block 2 is the unit length, which can adapt to sand core molds of various sizes.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An auxiliary positioning device for a sand core mold, characterized in that, It includes a base (1), an embedding groove is formed on the base (1), a plurality of telescopic blocks (2) are installed in the embedding groove and the telescopic blocks (2) can move up and down on the base (1), a locking member for locking the position of the telescopic blocks (2) on the base (1) is installed on the base (1), a rotating clamping block (3) is installed on the telescopic block (2), there is a gap between the rotating clamping block (3) and the telescopic block (2), and a conversion mechanism for driving the rotation of the rotating clamping block (3), and the conversion mechanism is used to convert the lifting movement of the telescopic block (2) into the rotation of the rotating clamping block (3) on the telescopic block (2); The conversion mechanism includes a rotating shaft rod (4) and a limiting shaft (5); the rotating shaft rod (4) penetrates through the telescopic block (2) and is rotatably connected with the telescopic block (2), one end of the rotating shaft rod (4) is connected with the rotating clamping block (3), the end of the rotating shaft rod (4) far from the rotating clamping block (3) penetrates through the telescopic block (2), the limiting shaft (5) is connected to the outer periphery of the end of the rotating shaft rod (4) far from the rotating clamping block (3), a rotating limiting groove (6) slidably matched with the limiting shaft (5) is formed in the base (1), and the rotating limiting groove (6) includes a vertical section and an inclined curve section; A limiting positioning block (7) is connected to the telescopic block (2), and the height of the limiting positioning block (7) is less than the height of the gap between the telescopic block (2) and the rotating clamping block (3); A prism (8) is connected to the side of the telescopic block (2) far from the rotating clamping block (3), an anti - detachment sliding groove slidably matched with the prism (8) is formed in the embedding groove, a first spring (9) for making the prism (8) have a tendency to move out of the anti - detachment sliding groove is arranged in the anti - detachment sliding groove, and the rotating shaft rod (4) penetrates through the telescopic block (2) and the prism (8).

2. The auxiliary positioning device for a sand core mold according to claim 1, wherein The locking member includes an electric push rod (10) and a bolt; the bolt is installed on the output shaft of the electric push rod (10), the electric push rod (10) is installed in the base (1), and a locking hole adapted to the bolt is formed on the outer wall of the prism (8).

3. The auxiliary positioning device for a sand core mold according to claim 1, wherein, Hydraulic cylinders (11) are installed around the embedding groove on the base (1), a pressing support plate (12) is installed on the output shaft of the hydraulic cylinder (11), a pressing plate (13) is slidably installed on the pressing support plate (12), the pressing plate (13) is slidably connected with the pressing support plate (12) through an electric slide rail, a reinforcing sliding groove is formed on the side of the pressing plate (13) close to the pressing support plate (12), and a limiting slider slidably matched with the reinforcing sliding groove is connected to the pressing support plate (12).

4. The auxiliary positioning device for a sand core mold according to claim 3, characterized in that, A side pressing plate (14) is slidably connected to the bottom of the pressing plate (13), and a fastening mechanism for locking the position of the side pressing plate (14) on the pressing plate (13) is also installed on the pressing plate (13).

5. The auxiliary positioning device for a sand core mold according to claim 4, characterized in that, A displacement slider (15) is connected to the side pressing plate (14), a limiting sliding groove slidably matched with the displacement slider (15) is formed on the pressing plate (13), a second spring (16) is arranged in the limiting sliding groove, and one end of the second spring (16) is connected with the displacement slider (15).

6. The auxiliary positioning device for a sand core mold according to claim 5, characterized in that, The fastening mechanism includes a threaded rod (17), a threaded nut (18) and a manual screwing block (19); the second spring (16) is connected to the side abutting plate (14), a threaded rod (17) which is slidably matched with the second spring (16) is arranged on the pressing plate (13), the threaded nut (18) is threadedly sleeved on one end of the threaded rod (17) away from the side abutting plate (14), the manual screwing block (19) is connected to the threaded nut (18) through a connecting rod, and a fastening sliding groove which is slidably matched with the threaded nut (18) is arranged on the pressing plate (13).

7. An auxiliary positioning device for a sand core mold according to claim 1, characterized in that, The cross-sectional view of the telescopic block (2) is rectangular.

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