An automatic assembly and turnover table device for sand cores

Abstract

The utility model discloses a sand core automatic assembly upset platform device, including gantry main part, upset platform, telescopic cylinder and three -dimensional limiting system. Upset platform is connected in the left side of gantry main part through the rotation axis, and the both ends of telescopic cylinder are connected upset platform bottom left side and gantry main part right side bottom respectively, and three -dimensional limiting system contains two groups main limiting rod, four groups auxiliary limiting rod, two groups of positioning pin and positioning compression parts set on upset platform. When working, fix basic sand core in the limiting space, drive upset platform to turn 90 DEG counterclockwise around rotation axis through telescopic cylinder, make the sand core that waits to add to be stacked accurately on the upper surface of basic sand core. The device passes through the horizontal upset movement of upset platform, and cooperates three -dimensional limiting system, realizes the accurate stacking of sand core, effectively avoids the sand core displacement risk caused by traditional vertical assembly, replaces manual adjustment with full -automatic positioning, and obviously promotes the assembly accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, and in particular to an automated sand core assembly and turnover table device. Background Technology

[0002] In the foundry industry, sand core assembly is a crucial process. Traditional manual assembly methods have numerous drawbacks: low efficiency, high labor intensity, and unavoidable positioning errors. When assembling sand cores vertically stacked, the pressure on the middle cores makes it difficult to adjust their position, resulting in inconsistent assembly accuracy. This severely impacts product quality and production efficiency, failing to meet the modern foundry industry's demands for high-precision, high-efficiency sand core assembly. Therefore, there is an urgent need for an automated device capable of achieving efficient and high-precision sand core assembly to improve production efficiency, reduce costs, and enhance product quality. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to provide an automated sand core assembly and flipping table device to solve the problems of low efficiency and large positioning deviation in the manual assembly of sand cores in the prior art, and to achieve efficient and high-precision automated assembly of sand cores.

[0004] Technical Solution: This technical solution relates to an automated sand core assembly and tilting table device, including a main frame, a tilting table, a telescopic cylinder, and a three-dimensional limiting system. The main frame serves as the foundational support structure for the entire device, providing a stable mounting platform for other components and ensuring the stability of the device during operation. The tilting table carries the sand cores to be assembled and is the core platform for achieving sand core assembly and tilting operations. The telescopic cylinder, as the power component, provides power for the tilting table's tilting through its telescopic movement, driving the tilting table to complete angle changes. The three-dimensional limiting system is used for precise positioning and fixing of the sand cores, ensuring accurate positioning of the sand cores during assembly and tilting, and preventing displacement or shaking.

[0005] The main body of the platform is equipped with a fixed base and a rotating shaft. The two ends of the telescopic cylinder are connected to the bottom left side of the tilting table and the bottom right side of the main body of the platform, respectively. The tilting table is rotated around the rotating shaft by the extension and retraction of the piston rod.

[0006] The three-dimensional limiting system includes two sets of main limiting rods, four sets of auxiliary limiting rods, two sets of positioning pins, and positioning and clamping components on the flipping table. It limits and fixes the sand core from multiple directions and dimensions, realizes the three-dimensional precise positioning of the sand core, and ensures the accuracy and stability of the sand core during the assembly process.

[0007] Furthermore, the fixed base is located on the upper left side of the main body of the platform, which enables the fixed base to provide reliable support for the rotating shaft, ensuring the installation accuracy and stability of the rotating shaft. The rotating shaft is installed on the upper end of the fixed base, and the flipping table is connected to the main body of the platform through the rotating shaft, so that the flipping table can rotate around a fixed and stable axis during rotation, ensuring the smoothness and accuracy of the flipping action.

[0008] Furthermore, the bottom left side of the flipping table is connected to a telescopic cylinder via a rotating mechanism, enabling the flipping table to flexibly flip under the drive of the telescopic cylinder. The other end of the telescopic cylinder is fixed to the bottom right side frame of the main body of the frame, providing a stable pulling or pushing force for the flipping table to flip. Through its own telescopic movement, the flipping table is driven to flip counterclockwise around the rotation axis, realizing the assembly operation of the sand core at different angles.

[0009] Furthermore, the three-dimensional limiting system is set perpendicular to the surface of the flipping table. The main limiting rod is located on the left side of the flipping table along its width direction, which can initially limit the sand core on one side of the width direction when the sand core is placed on the flipping table, determining the reference position of the sand core in that direction. Two sets of auxiliary limiting rods are located on the right side of the flipping table along its width direction, cooperating with the main limiting rod on the left side to limit the sand core from the other side of the width direction, further refining the position of the sand core in the width direction. The other two sets are symmetrically arranged on the left and right sides along the length direction of the flipping table, ensuring that the position of the sand core on the flipping table fully meets the assembly requirements. The positioning pin is set vertically on the surface of the flipping table and located at the center of the flipping table. It can be inserted into the positioning hole corresponding to the sand core to accurately position the sand core from the vertical direction, ensuring that the sand core will not be displaced vertically during flipping and assembly. The positioning and clamping component is located in the lower right corner of the flipping table, used to clamp and fix the sand core after the sand core is positioned, preventing the sand core from loosening or shifting during subsequent flipping and assembly operations.

[0010] Furthermore, the flipping table is coplanar with the top surface of the main frame in the initial state, which facilitates the placement of sand cores and initial assembly operations, and provides a stable and convenient working plane. When it is necessary to assemble or operate the sand core at other angles, the telescopic cylinder drives it to rotate 90° counterclockwise around the rotation axis, so that the sand core is changed to a suitable angle to meet different assembly process requirements and improve the efficiency and quality of automated sand core assembly.

[0011] During operation, the base sand core is fixed in the limited space, and the tilting table is driven by the telescopic cylinder to rotate 90° counterclockwise around the rotation axis, so that the sand core to be stacked is accurately placed on the upper surface of the base sand core, achieving efficient and high-precision sand core assembly.

[0012] Beneficial effects: This invention achieves precise stacking of sand cores through the horizontal flipping motion of the tilting table, effectively avoiding the risk of sand core displacement caused by traditional vertical assembly. Simultaneously, the highly reliable three-dimensional limiting system, composed of a main / auxiliary limiting rod combination, positioning pins, and clamping components, precisely constrains the horizontal and vertical degrees of freedom of the sand cores, effectively suppressing vibration deviation. Replacing manual adjustment with fully automated positioning significantly improves the assembly accuracy, quality stability, and production efficiency of the sand core components. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the present invention;

[0014] Figure 2 for Figure 1 Side view;

[0015] Figure 3 This is a schematic diagram of the structure after the basic sand core of this utility model has been placed;

[0016] Figure 4 This is a schematic diagram of the structure of the basic sand core after it has been placed and flipped over;

[0017] Figure 5 This is a schematic diagram of the structure of the sand cores to be stacked according to this utility model.

[0018] The labels in the diagram are as follows: 1-main frame, 2-tilting table, 3-telescopic cylinder, 11-fixed base, 12-rotating shaft, 21-main limit rod, 22-auxiliary limit rod, 23-positioning pin, 24-positioning and clamping component, 31-rotating mechanism, 4-basic sand core, 5-sand core to be stacked. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] An automated sand core assembly and turnover table device, as shown in the attached figure. Figure 1-5 As shown, it includes a main frame 1, a tilting table 2, a telescopic cylinder 3, and a three-dimensional limit system.

[0021] The tilting table 2 is initially kept horizontal, flush with the top surface of the main frame 1. The operator hoists the foundation sand core onto the surface of the tilting table 2 and completes precise positioning through the following steps: First, two sets of positioning pins 23, vertically fixed to the center of the table surface, are inserted into the positioning holes at the bottom of the foundation sand core to eliminate horizontal rotational freedom. Then, two sets of main limiting rods 21, welded to the left edge of the tilting table 2, tightly abut against the left side of the sand core. Simultaneously, two sets of auxiliary limiting rods 22 located on the right edge clamp the right boundary of the sand core. Two other sets of auxiliary limiting rods 22, symmetrically arranged along the length of the front and rear edges, constrain the front-to-back displacement of the sand core, forming an X / Y mechanical blockage. Finally, the positioning and clamping component 24, installed in the lower right corner of the tilting table 2, is activated, its pneumatic pressure block applying vertical downward pressure to completely lock the sand core's Z-axis movement. Through the centered anti-deflection positioning pins 23, the exclusive anti-centrifugal force on the left side of the main limiting rods 21, and the diagonal pre-tightening triple synergy formed by the lower right corner layout of the clamping component, zero-gap fixing of the foundation sand core is achieved.

[0022] The piston rod of the telescopic cylinder 3 retracts, horizontally pulling the bottom left side of the tilting platform 2, driving the tilting platform 2 to rotate 90° counterclockwise around the rotating shaft 12 fixed to the upper left side of the main body 1. During this dynamic process: the main limiting rod 21 continuously resists the centrifugal force pulling on the left side of the sand core, the positioning and clamping component 24 maintains downward pressure to suppress the tendency of the lower right corner of the sand core to tilt due to the gravitational torque, and the asymmetrically distributed auxiliary limiting rods 22 (double rods on the right side + double rods at the front and rear) adaptively constrain the local area according to the sand core contour to prevent vibration dislocation.

[0023] Once the tilting platform 2 is stabilized in a vertical position, the sand cores to be stacked are hoisted onto the upper surface of the base sand core, where they naturally adhere and stack under gravity. Then, the piston rod of the telescopic cylinder 3 extends, driving the tilting platform 2 to rotate 90° clockwise back to its initial horizontal position. At this point, the two sand cores are precisely stacked without external pressure, and the positioning pin 23 ensures horizontal alignment accuracy. Finally, the positioning clamping component 24 is released, and the assembled sand core assembly is removed.

[0024] Through the above-described embodiments, the sand core automated assembly and flipping table device of this utility model, through the change of the horizontal → vertical → horizontal movement path and in conjunction with the three-dimensional limiting system, effectively avoids the risk of sand core damage under pressure in traditional vertical assembly, solves the problems of low efficiency and large positioning deviation in traditional manual assembly, and significantly improves the production quality and stability of sand core casting.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automated sand core assembly and tilting table device, comprising a table body (1), a tilting table (2), a telescopic cylinder (3), and a three-dimensional limiting system, characterized in that: The main body (1) of the platform is provided with a fixed base (11) and a rotating shaft (12). The telescopic cylinder (3) is connected to the bottom left side of the flipping table (2) and the bottom right side of the main body (1) respectively. The three-dimensional limiting system includes two sets of main limiting rods (21), four sets of auxiliary limiting rods (22), two sets of positioning pins (23) and positioning and pressing components (24) on the flipping table (2).

2. The automated sand core assembly tilting table device according to claim 1, characterized in that: The fixed base (11) is located on the upper left side of the main body (1) of the platform. The rotating shaft (12) is installed on the upper end of the fixed base (11). The flipping table (2) is connected to the main body (1) of the platform through the rotating shaft (12).

3. The automated sand core assembly tilting table device according to claim 1, characterized in that: The bottom left side of the flipping table (2) is connected to the telescopic cylinder (3) via a rotating mechanism (31), and the other end of the telescopic cylinder is fixed to the bottom right side frame of the main body of the table (1).

4. The automated sand core assembly tilting table device according to claim 1, characterized in that: The three-dimensional limiting system is set perpendicular to the surface of the flipping table (2). The main limiting rod (21) is set on the left side of the flipping table (2) along the width direction. Two sets of the auxiliary limiting rods (22) are set on the right side of the flipping table (2) along the width direction, and the other two sets are symmetrically set on the left and right sides of the flipping table (2) along the length direction. The positioning pin (23) is set perpendicularly to the surface of the flipping table (2) and located at the center of the flipping table (2). The positioning and clamping component (24) is set at the lower right corner of the flipping table (2).

5. The automated sand core assembly tilting table device according to claim 1, characterized in that: The flipping table (2) is coplanar with the top surface of the main body (1) in the initial state. Driven by the telescopic cylinder (3), it rotates 90° counterclockwise around the rotating axis (12).

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