Automatic clamping and bare casting mechanism for core cladding with pattern draft

Abstract

The utility model relates to the technical field of casting, in particular to an automatic clamping and bare casting mechanism for a core package with pattern draft, which comprises a frame and a casting platform, a casting conveying track is arranged at the top of the casting platform, a core package is arranged at the top of the casting conveying track, a clamping mechanism is arranged at the bottom of the casting platform, and the core package is clamped by the clamping mechanism. The clamping mechanism comprises a machine box fixedly installed at the bottom of the pouring platform, hydraulic oil cylinders are symmetrically and fixedly installed on the two sides of the machine box, and push rods are arranged at the output ends of the two hydraulic oil cylinders. According to the automatic clamping bare casting mechanism, the automatic process of clamping before casting and timed loosening after casting can be automatically completed, manual intervention is eliminated, the labor cost is reduced, due to the fact that the automation degree is high, the automatic clamping bare casting mechanism can continuously and stably work, and the production efficiency is greatly improved. Manual intervention is eliminated, and meanwhile various fault shutdown caused by personnel errors is also eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting, and in particular relates to a mechanism for automatically clamping bare casting of a core package with a draft angle. Background Art

[0002] The cylinder head is a core component of petroleum equipment. It is subjected to cyclic impacts of high temperature and high pressure during the operation of the equipment. Therefore, it has high requirements for material strength, stiffness, toughness, heat resistance and consistency. It is an important challenge to select suitable casting materials and stable composition control, mechanical property control and process quality control to ensure that the cylinder head meets the working requirements of the engine. Although the casting technology is quite mature, defects such as pores and shrinkage may still occur during the casting process. These defects will affect the airtightness of the cylinder head and cause leakage, thus affecting the performance of the engine. At the same time, these defects may also reduce the strength of the cylinder head, making it easy to be damaged under high pressure and high temperature environment.

[0003] During the pouring process, the core package is prone to cracking due to the pressure of high-temperature molten iron liquid, the expansion pressure of solidified graphitization, the expansion pressure of sand mold due to heating phase change, etc., which may lead to quality hazards such as sand mold sparking, casting deformation, and increased casting size. Therefore, it needs to be tightened to prevent cracking. The traditional method requires manual tightening or disassembly with iron plates and bolts, which is time-consuming and labor-intensive. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a mechanism for automatically clamping bare casting of core packages with draft angles, which solves the problem that the traditional mode requires manual tightening or disassembly of the core package with iron plates and bolts, which is time-consuming and labor-intensive.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mechanism for automatically clamping bare casting with a core package with a draft angle, comprising a frame and a casting platform, a casting conveying track is arranged on the top of the casting conveying track, a core package is arranged on the top of the casting conveying track, and a clamping mechanism is arranged at the bottom of the casting platform, the clamping mechanism comprises a chassis fixedly installed at the bottom of the casting platform, hydraulic cylinders are symmetrically fixedly installed on both sides of the chassis, push rods are arranged at the output ends of the two hydraulic cylinders, slide blocks are fixedly installed at the opposite ends of the two push rods, racks are fixedly installed on the opposite sides of the two slides, a gear meshing with the two racks is arranged in the center of the interior of the chassis, guide slide blocks are fixedly installed on the opposite sides of the two racks, guide grooves compatible with the slide blocks and the guide slide blocks are opened on the top and bottom of the inner wall of the chassis, clamping rods are fixedly installed on the tops of the two slides, and clamping blocks are fixedly installed on the opposite sides of the two clamping rods.

[0006] Preferably, the bottom of the clamping rod passes through the top of the casting platform and the chassis in sequence and extends to the interior of the chassis to be fixedly connected to the slider, and the top of the casting platform and the top of the chassis are both provided with sliding grooves for horizontal movement of the two clamping rods.

[0007] Preferably, the core package is located in the middle of two clamping blocks, and two sides of the core package are respectively in contact with the corresponding clamping blocks.

[0008] Preferably, the slider and the guide slider are both slidably connected to the guide slot.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The automatic clamping bare pouring mechanism can automatically complete the process of clamping before pouring and timed release after pouring, eliminating manual intervention and reducing labor costs.

[0011] 2. Due to the high degree of automation, the automatic clamping bare pouring mechanism can work continuously and stably, greatly improving production efficiency. It eliminates manual intervention and also eliminates various types of downtime caused by human errors.

[0012] 3. Improve product quality: The automatic and precise clamping of the equipment can ensure the dimensional accuracy and surface quality of the product, thus improving the overall quality of the product. In addition, since the clamping process eliminates the interference of human factors, the stability and consistency of the product are improved.

[0013] 4. The automatic clamping bare pouring mechanism eliminates manual work, thereby eliminating various safety, health and other risks brought about by manual work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model.

[0016] In the figure: 1. frame; 2. casting platform; 3. casting conveying track; 4. core package; 5. chassis; 6. hydraulic cylinder; 7. push rod; 8. slider; 9. rack; 10. gear; 11. guide slider; 12. guide slide; 13. clamping rod; 14. clamping block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below through embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Refer to the following Figure 1-Figure 2 To describe a mechanism for automatically clamping bare casting of a core package with a draft angle provided by one embodiment of the present application.

[0019] A mechanism for automatically clamping bare casting of core packages with draft angles, comprising a frame 1 and a casting platform 2, a casting conveying track 3 is arranged on the top of the casting platform 2, a core package 4 is arranged on the top of the casting conveying track 3, a clamping mechanism is arranged at the bottom of the casting platform 2, the clamping mechanism comprises a chassis 5 fixedly mounted at the bottom of the casting platform 2, hydraulic cylinders 6 are symmetrically fixedly mounted on both sides of the chassis 5, too much pressure may cause the core package to be crushed, the pressure of the hydraulic pump can be adjusted according to the size of the core package to be cast, and push rods 7 are arranged at the output ends of the two hydraulic cylinders 6, and the relative positions of the two push rods 7 are A slider 8 is fixedly installed at one end, and a rack 9 is fixedly installed on the opposite side of the two sliders 8. A gear 10 meshing with the two racks 9 is arranged in the center of the interior of the chassis 5. A guide slider 11 is fixedly installed on the opposite side of the two racks 9. The racks 9 and gears 10 are arranged to make the two hydraulic cylinders 6 more synchronized when working. The top and bottom of the inner wall of the chassis 5 are provided with guide grooves 12 adapted to the slider 8 and the guide slider 11. A clamping rod 13 is fixedly installed on the top of the two sliders 8, and a clamping block 14 is fixedly installed on the opposite side of the two clamping rods 13.

[0020] Furthermore, the bottom of the clamping rod 13 passes through the top of the casting platform 2 and the chassis 5 in sequence and extends to the interior of the chassis 5 to be fixedly connected to the slider 8. The top of the casting platform 2 and the top of the chassis 5 are both provided with sliding grooves for the horizontal movement of the two clamping rods 13.

[0021] Furthermore, the core package 4 is located in the middle of the two clamping blocks 14, and the two sides of the core package 4 are respectively in contact with the corresponding clamping blocks 14. The clamping blocks 14 can select an adaptive shape according to the shape of the core package 4 to be cast, and are not limited to the horizontal clamping surface. In order to adjust the clamping force and the clamping fit stability, the clamping blocks 14 can be made of different materials. The clamping blocks 14 are fixedly installed on the clamping rod 13 by bolts.

[0022] In a further embodiment, the slider 8 and the guide slider 11 are both slidably connected to the guide slot 12. The guide slot 12 not only makes the slider 8 and the guide slider 11 move more smoothly when moving horizontally, but also plays a guiding role.

[0023] Combined with the above embodiments, the specific working process of the mechanism for automatically clamping bare casting with draft angle core package of the present application is described: the sand mold is produced by the core shooting mechanism, and is hoisted into the sand mold three-dimensional warehouse by the kbk crane. The front end of the sand mold warehouse calls the sand mold to perform the preliminary core work, and returns to the warehouse after the task is completed. The upper computer issues the task to take the core out of the warehouse, and then the 1# truss robot automatically grabs the dip coating and places it on the surface drying furnace tray for drying. After drying and cooling, the 2# truss robot first grabs the lower mold and then the upper mold to automatically close the box after the upper computer issues the pouring task. The casting platform 2 is automatically shipped to the casting platform 2. The clamping mechanism of the casting platform 2 automatically clamps to prevent the box from expanding. After the casting is completed and cooled for a period of time, the clamping rod 13 of the clamping mechanism automatically loosens, and the casting conveyor track 3 automatically runs to send away the cast core package 4. When the next batch of core packages arrives, this mechanism can ensure the automatic clamping and non-expansion of the core package 4, which solves the problem of manual operation and greatly improves the production efficiency of this product. After the casting is completed, it is stored again in the high-temperature vertical warehouse for cooling. After cooling, it is shipped to the 2# track line for sand processing. After the fork-tooth machine forks the sand mold, the casting is taken out by the mechanical arm. The broken sand mold is subjected to a series of crushing and thermal regeneration, and then sent to the core shooting machine for reuse.

[0024] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0025] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A mechanism for automatically clamping and casting a core package with a draft angle, comprising a frame (1) and a casting platform (2), characterized in that: A casting conveying track (3) is arranged on the top of the casting platform (2), a core bag (4) is arranged on the top of the casting conveying track (3), a clamping mechanism is arranged on the bottom of the casting platform (2), the clamping mechanism comprises a chassis (5) fixedly mounted on the bottom of the casting platform (2), hydraulic cylinders (6) are symmetrically fixedly mounted on both sides of the chassis (5), push rods (7) are arranged at the output ends of the two hydraulic cylinders (6), and slide blocks (8) are fixedly mounted on the opposite ends of the two push rods (7), and the two slide blocks (8) are fixedly mounted on the opposite ends of the two push rods (7). A rack (9) is fixedly installed on the opposite side, a gear (10) meshing with the two racks (9) is arranged in the center of the interior of the chassis (5), a guide slider (11) is fixedly installed on the opposite side of the two racks (9), and a guide slot (12) matching the slider (8) and the guide slider (11) is opened on the top and bottom of the inner wall of the chassis (5), a clamping rod (13) is fixedly installed on the top of the two sliders (8), and a clamping block (14) is fixedly installed on the opposite side of the two clamping rods (13).

2. The mechanism for automatically clamping bare casting of core package with draft angle according to claim 1, characterized in that: The bottom of the clamping rod (13) passes through the top of the casting platform (2) and the chassis (5) in sequence and extends to the inside of the chassis (5) to be fixedly connected to the slider (8). The top of the casting platform (2) and the top of the chassis (5) are both provided with sliding grooves for horizontal movement of the two clamping rods (13).

3. The mechanism for automatically clamping bare casting of core package with draft angle according to claim 1, characterized in that: The core package (4) is located in the middle of the two clamping blocks (14), and two sides of the core package (4) are respectively in contact with the corresponding clamping blocks (14).

4. The mechanism for automatically clamping bare casting of core package with draft angle according to claim 1, characterized in that: The slide block (8) and the guide slide block (11) are both slidably connected to the guide slide groove (12).

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