Sand core feeding lifting device

Abstract

The utility model discloses a sand core feeding lifting device which comprises a lifting frame, a lifting table is arranged in the lifting frame, a sand core rotary table is arranged on the lifting table, the sand core rotary table is in transmission connection with a servo motor, a sand core clamp is arranged on the sand core rotary table, a lifting motor is arranged below the lifting table, and the lifting motor is in transmission connection with the servo motor. The lifting platform is in transmission connection with the lifting motor; the scheme has the characteristics that feeding and discharging are convenient, the feeding and discharging efficiency is improved, operation is easy, occupied space is small, and the application scene is wide.

Description

Technical Field

[0001] The utility model relates to the field of sand core feeding, in particular to a sand core feeding lifting device. Background Art

[0002] Sand casting refers to a casting method that produces castings in sand molds. When casting a workpiece, the sand is usually directly made into a casting model according to a specific shape, and then the molten metal is injected into the model for plasticization. After the molten metal is cooled, a metal workpiece can be obtained. Since the cost of the molding sand is low, the cost of casting the metal workpiece can be effectively controlled. When using sand cores for casting, the sand cores need to be transported to the casting site or area. The casting machines of some production plants are set higher, so the sand cores need to be lifted. The existing lifting methods usually use cranes or handling equipment for lifting; this method is not only inefficient, but also occupies a large space. Therefore, it is urgently necessary to provide a sand core feeding and lifting device to solve the above problems. Summary of the invention

[0003] To achieve the above-mentioned purpose, the inventor provides a sand core loading and lifting device, including: a lifting frame, a lifting platform is provided in the lifting frame, a sand core turntable is provided on the lifting platform, the sand core turntable is transmission connected to the servo motor, a sand core clamp is provided on the sand core turntable, a lifting motor is provided under the lifting platform, and the lifting platform is transmission connected to the lifting motor.

[0004] As a preferred structure of the utility model, the output end of the servo motor is provided with a gear, the lifting platform is provided with a slewing support bearing, the gear is transmission-connected with the slewing support bearing, and the sand core turntable is arranged on the slewing support bearing.

[0005] As a preferred structure of the utility model, a rotary positioning component is fixedly provided on the lifting platform below the sand core turntable, and the rotary positioning component is used to position the sand core turntable.

[0006] As a preferred structure of the utility model, a lifting and positioning assembly is provided on the upper part of the lifting frame. When the lifting platform rises to the top of the lifting platform, the lifting and positioning assembly is located below the lifting platform.

[0007] As a preferred structure of the utility model, the lifting and positioning assembly includes a cylinder and a limiting hole / slot, the fixed end of the cylinder is fixedly connected to the lifting frame, the limiting hole / slot is arranged on the lifting platform, and the telescopic end of the cylinder is adapted to the limiting hole / slot.

[0008] As a preferred structure of the utility model, the sand core clamps are in three sets, and the three sets of sand core clamps are evenly arranged on the sand core turntable with the axis of the sand core turntable as the center of the circle.

[0009] As a preferred structure of the utility model, the lifting motor is arranged at the bottom of the lifting frame, the lifting motor is connected to the transmission shaft through a synchronous belt, and the transmission shaft is connected to the lifting platform through a synchronous wheel and a synchronous belt.

[0010] As a preferred structure of the utility model, a protective net is provided around the lifting frame.

[0011] As a preferred structure of the utility model, a lifting safety door is provided on one side of the lifting frame.

[0012] Different from the prior art, the beneficial effects achieved by the above technical scheme are as follows: the device arranges a lifting platform in the lifting frame, and arranges a sand core turntable on the lifting platform, so that the sand core can be loaded to a high place, thereby meeting the loading needs of sand cores at different heights; in addition, the setting of the sand core turntable can make the loading and unloading positions of the sand cores can be adjusted to a suitable grasping position by a servo motor, thereby effectively facilitating loading and unloading, improving the efficiency of loading and unloading, and is simple to operate, occupies less space and has a wide range of applicable scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the sand core loading and lifting device described in the specific implementation method is schematically shown. Figure 1 ;

[0014] Figure 2 The structure of the sand core loading and lifting device described in the specific implementation method is schematically shown. Figure 2 ;

[0015] Figure 3 The structure of the sand core loading and lifting device described in the specific implementation method is schematically shown. Figure 3 ;

[0016] Figure 4 This is a schematic diagram of the installation structure of the rotary positioning assembly and the lifting positioning assembly described in the specific implementation method;

[0017] Figure 5 This is a schematic diagram of the driving structure of the servo motor and the sand core turntable described in the specific implementation method;

[0018] Figure 6 It is a schematic diagram of the structure of the protective net and the lifting safety door described in the specific implementation method.

[0019] Description of reference numerals:

[0020] 101. Lifting frame; 102. Lifting platform; 103. Sand core turntable; 104. Servo motor; 105. Gear; 106. Sand core fixture; 107. Lifting motor; 108. Synchronous belt; 109. Transmission shaft; 110. Synchronous wheel; 111. Slewing support bearing; 201. Slewing positioning assembly; 3. Lifting positioning assembly; 301. Cylinder; 302. Limiting groove; 401. Protective net; 402. Lifting safety door; 501. Sand core. DETAILED DESCRIPTION

[0021] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0022] like Figures 1 to 3 As shown, this embodiment provides a sand core loading and lifting device, including: a lifting frame 101, a lifting platform 102 is provided in the lifting frame 101, a sand core turntable 103 is provided on the lifting platform 102, the sand core turntable 103 is connected to the servo motor 104, a sand core fixture 106 is provided on the sand core turntable 103, a lifting motor 107 is provided below the lifting platform 102, and the lifting platform 102 is connected to the lifting motor 107. In the specific implementation process of this embodiment, the lifting platform 102 is lifted and lowered by the lifting motor 107, so as to achieve the purpose of lifting and lowering the sand core. During the lifting process, the sand core 501 is fixed on the sand core turntable 103 by the sand core fixture 106. The setting of the sand core turntable 103 can meet the sand core placement or grabbing work at different angles, that is, when the sand core needs to be placed or grabbed, the sand core fixture on the sand core turntable can be adjusted to a suitable position by the servo motor, and then the sand core is placed or grabbed.

[0023] like Figure 3 and Figure 5 As shown, in this embodiment, the output end of the servo motor is provided with a gear 105, the lifting platform is provided with a slewing bearing 111, the gear 105 is in transmission connection with the slewing bearing 111, and the sand core turntable is provided on the slewing bearing 111; that is, the sand core turntable 103 is driven and rotated by the servo motor 104, the gear 105 and the slewing bearing 111. In order to realize the positioning of the sand core turntable 103, that is, when the sand core turntable is rotated to a suitable position, it is positioned so that the positioning accuracy is high and it is easy to grasp, in some embodiments, such as Figure 4 and Figure 5 As shown, a rotary positioning component 201 is fixedly provided on the lifting platform below the sand core turntable. The rotary positioning component 201 is used to position the sand core turntable. The rotary positioning component 201 can adopt a cylinder and a positioning hole.

[0024] In some embodiments, in order to provide support and positioning for the lifting platform after it is lifted into place, such as Figure 4 and Figure 5 As shown, a lifting and positioning assembly 3 is provided on the upper part of the lifting frame. When the lifting platform rises to the top of the lifting frame, the lifting and positioning assembly 3 is located below the lifting platform 102. Specifically, the lifting and positioning assembly 3 may include a cylinder 301 and a limiting hole / slot 302. The fixed end of the cylinder 301 is fixedly connected to the lifting frame, the limiting hole / slot 302 is provided on the lifting platform, and the telescopic end of the cylinder 301 is adapted to the limiting hole / slot 302. That is, when the lifting platform is raised to the position, the cylinder is extended, and after matching with the limiting hole / slot, the lifting platform can be positioned and support force can be provided; when the height of the lifting platform exceeds the cylinder, the cylinder can be extended first, and the lifting platform is lowered again until the limiting slot matches with the telescopic end of the cylinder.

[0025] like Figures 1 to 3 As shown, in the above embodiment, there are three sets of sand core clamps, and the three sets of sand core clamps are evenly arranged on the sand core turntable with the axis of the sand core turntable as the center of the circle. The arrangement of three sets of sand core clamps allows the lifting platform to lift three sets of sand cores at a time, and a grabbing structure can be set on the tooling for grabbing the sand cores, so that three sets of sand cores can be grabbed at a time, thereby effectively improving work efficiency.

[0026] In the above embodiment, if Figure 2 As shown, the lifting platform is lifted by arranging a lifting motor at the bottom of the lifting frame, the lifting motor 107 is connected to the transmission shaft 109 through a synchronous belt 108, and the transmission shaft 109 is connected to the lifting platform 102 through a synchronous wheel 110 and a synchronous belt 108. In addition, a protective net 401 is provided on the surrounding side of the lifting frame 101. A lifting safety door 402 is also provided on one side of the lifting frame.

[0027] In the specific implementation process of the above embodiment, the loading lifting platform is driven by a servo motor to rotate the sand core turntable in sequence to the position of the rotary positioning component. After three sets of sand core tooling are loaded onto the sand core turntable in sequence in the safety door, the safety door is exited, and the lifting motor drives the lifting platform to rise to the highest point first, the lifting motor stops working, and then descends to the position of the lifting positioning component. The sand core turntable is positioned on all sides by the lifting positioning component. The robot casting gripper grabs three sets of sand core tooling at a time. After taking the parts, the lifting positioning component retracts, the lifting motor drives the sand core turntable to descend to the lowest point, the lifting motor stops working, and the worker enters the safety door to load materials, and this cycle repeats.

[0028] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described herein, or equivalent structural or equivalent process transformations made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the scope of patent protection of the utility model.

Claims

1. A sand core feeding and lifting device, characterized in that: include: A lifting frame is provided inside the lifting frame, a lifting platform is provided on the lifting platform, a sand core turntable is provided on the lifting platform, the sand core turntable is transmission-connected to a servo motor, a sand core fixture is provided on the sand core turntable, a lifting motor is provided under the lifting platform, and the lifting platform is transmission-connected to the lifting motor.

2. The sand core loading and lifting device according to claim 1 is characterized in that: The output end of the servo motor is provided with a gear, the lifting platform is provided with a slewing support bearing, the gear is transmission-connected with the slewing support bearing, and the sand core turntable is arranged on the slewing support bearing.

3. The sand core feeding and lifting device according to claim 1, characterized in that: A rotary positioning component is fixedly provided on the lifting platform below the sand core turntable, and the rotary positioning component is used for positioning the sand core turntable.

4. The sand core feeding and lifting device according to claim 1, characterized in that: A lifting and positioning assembly is provided on the upper part of the lifting frame. When the lifting platform rises to the top of the lifting platform, the lifting and positioning assembly is located below the lifting platform.

5. The sand core loading and lifting device according to claim 4 is characterized in that: The lifting and positioning assembly includes a cylinder and a limiting hole / slot, the fixed end of the cylinder is fixedly connected to the lifting frame, the limiting hole / slot is arranged on the lifting platform, and the telescopic end of the cylinder is adapted to the limiting hole / slot.

6. The sand core loading and lifting device according to any one of claims 1 to 5, characterized in that: The sand core clamps are in three sets, and the three sets of sand core clamps are evenly arranged on the sand core turntable with the axis of the sand core turntable as the center of the circle.

7. The sand core loading and lifting device according to any one of claims 1 to 5, characterized in that: The lifting motor is arranged at the bottom of the lifting frame, the lifting motor is connected to the transmission shaft through a synchronous belt, and the transmission shaft is connected to the lifting platform through a synchronous wheel and a synchronous belt.

8. The sand core loading and lifting device according to any one of claims 1 to 5, characterized in that: A protective net is arranged around the lifting frame.

9. The sand core loading and lifting device according to any one of claims 1 to 5, characterized in that: A lifting safety door is arranged on one side of the lifting frame.

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