Core assembly auxiliary tool and use method thereof

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The lifting and sliding mechanism of the core assembly auxiliary tooling solves the problems of collision and precision control when the overhead crane lifts the sand core, realizes flexible sand core assembly, and improves casting quality and ease of operation.

CN120679953APending Publication Date: 2025-09-23KOCEL EQUIP

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Patent Information

Application Number: CN202511045829.8
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2025-07-29
Publication Date: 2025-09-23

AI Technical Summary

Technical Problem

During the casting process, when the overhead crane lifts the sand cores, there are collisions and squeezing between the sand cores, which causes the sand grains to fall off and be damaged. It is difficult to control the accuracy, resulting in defects such as slag inclusion. Especially for complex or large-sized sand cores, it is difficult to flexibly adjust the angle and position of the lifting operation.

Method used

The core assembly auxiliary tooling is adopted, including a base, a lifting mechanism and a sliding mechanism. The sand core is manually driven to rise and fall and move horizontally to achieve precise assembly.

Benefits of technology

It improves the core assembly accuracy, avoids sand core damage and slag inclusion defects, is suitable for sand core assembly of various sizes and structures, is easy to operate and does not require external energy.

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Abstract

The invention relates to a core assembly auxiliary tool which comprises a base, a lifting mechanism and a sliding mechanism, and the lifting mechanism is arranged between the base and the sliding mechanism; a sand core is arranged at the top of the sliding mechanism, the lifting mechanism drives the sand core to do lifting motion, and the sliding mechanism drives the sand core to do horizontal motion. According to the core assembly auxiliary tool disclosed by the invention, the sand core can be driven to do lifting motion through the lifting mechanism, and the sand core can be driven to do horizontal motion through the sliding mechanism, so that the core assembly precision is improved, and casting defects caused by poor core assembly are completely eradicated; a plurality of core assembly auxiliary tools or a crown block can be matched to flexibly adjust the core assembly angle, so that the core assembly device is suitable for core assembly of sand cores with various sizes and structures, and is wide in universality. The core assembly auxiliary tool is simple in structure and ingenious in design, hydraulic driving devices, electric driving devices and the like are not adopted, external energy is not needed for manual driving, and the tool is easy and convenient to operate.

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Description

Technical Field

[0001] The present invention relates to the field of casting technology, in particular to a core assembly auxiliary tooling and a use method thereof. Background Art

[0002] During the casting process, multiple sand cores are assembled to form the mold cavity for pouring molten metal. This process is typically performed using an overhead crane. However, when assembling two sand cores horizontally, the crane's stability is difficult to control, leading to collisions and squeezing between the cores. This can cause sand grains to fall off or even become damaged, leading to defects such as slag inclusion.

[0003] Furthermore, overhead crane hoisting poses operational challenges, such as difficulty maintaining precise control. Positional deviations during core hoisting can easily lead to core misalignment, increasing casting rejection rates and subsequent cleaning and polishing workload. Especially for complex or large cores, direct crane hoisting poses difficulties in flexibly adjusting core angles and assembly positions during core assembly. Summary of the Invention

[0004] Based on this, it is necessary to provide a core assembly auxiliary tooling and a method of using the tooling, which can flexibly adjust the height, horizontal position and angle, in order to solve the above technical problems.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] An embodiment of the present invention discloses a core assembly auxiliary tooling, comprising: a base, a lifting mechanism and a sliding mechanism, wherein the lifting mechanism is arranged between the base and the sliding mechanism; a sand core is placed on top of the sliding mechanism, the lifting mechanism drives the sand core to move up and down, and the sliding mechanism drives the sand core to move horizontally.

[0007] In one embodiment, the lifting mechanism includes a lifting rod and a lifting platform, and a plurality of the lifting rods are supported between the base and the lifting platform; the lifting rods are provided with a screw portion and a driving portion, and the base and / or the lifting platform are provided with a threaded hole that is limitedly matched with the screw portion; the lifting rods are manually driven to rotate by the driving portion, thereby driving the lifting platform to move up and down.

[0008] In one embodiment, the lifting mechanism further includes a guide rod, wherein a guide rod is provided at each end of the base, and a guide hole is provided at the bottom of the lifting platform, and the guide rod is provided in the guide hole.

[0009] In one embodiment, the guide rod is provided with a guide protrusion, and the guide hole is provided with a guide groove matching the guide protrusion.

[0010] In one embodiment, the screw portion includes a first threaded portion provided at one end of the lifting rod and a second threaded portion provided at the other end of the lifting rod, the first threaded portion is limitedly engaged with the threaded hole of the base, and the second threaded portion is limitedly engaged with the threaded hole of the lifting platform; the thread directions of the first threaded portion and the second threaded portion are opposite.

[0011] In one embodiment, the sliding mechanism includes a slide rail seat and a slide platform, the slide rail seat is arranged on the top of the lifting mechanism, the slide platform is arranged on the top of the slide rail seat, and the slide rail seat and the slide platform are slidably connected by a dovetail tenon.

[0012] In one embodiment, a mounting groove is provided on the side of the slide rail seat facing the slide platform, and a plurality of rollers are installed in the mounting groove to slide in cooperation with the slide platform.

[0013] In one embodiment, an elastic layer is provided on the top surface of the slide.

[0014] In one embodiment, a reinforcing rib is provided on the side of the base.

[0015] In the second aspect, an embodiment of the present invention further discloses a method of use, which is applied to the core assembly auxiliary tooling described in any of the above embodiments, wherein one core assembly auxiliary tooling is provided at each end of the bottom of the sand core, and the two core assembly auxiliary toolings cooperate to drive the sand core to move up and down and / or horizontally to perform core assembly operations.

[0016] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0017] The core assembly auxiliary tooling disclosed in the present invention can drive the sand core to perform lifting movement through the lifting mechanism, and can drive the sand core to perform horizontal movement through the sliding mechanism, thereby improving the core assembly accuracy and eliminating casting defects caused by poor core assembly; multiple core assembly auxiliary tooling or cooperation with a crown crane can also flexibly adjust the core assembly angle, and is suitable for sand core assembly of various sizes and structures, with wide versatility.

[0018] The core assembly auxiliary tooling disclosed in the present invention has a simple structure and an ingenious design. It does not use hydraulic, electric or other driving devices, and is manually driven without the need for external energy. The tooling is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a core assembly auxiliary tooling disclosed in an embodiment of the present invention;

[0020] Figure 2 An exploded view of the core assembly auxiliary tooling disclosed in an embodiment of the present invention;

[0021] Description of reference numerals:

[0022] 10-base, 11-reinforcement plate;

[0023] 21-lifting platform, 22-lifting rod, 23-guide rod;

[0024] 31-slide rail seat, 32-slide table, 33-mounting groove, 34-roller. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0026] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "bottom end," "top end," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The embodiment of the present invention discloses a core assembly auxiliary tool, which uses a crane to lift the sand core to the core assembly station, and the core assembly auxiliary tool is placed at the bottom of the sand core to support the sand core. Through the core assembly auxiliary tool, the sand core can be driven to move up and down and move horizontally, and the sand core can be adjusted to a suitable angle and position for assembly with other sand cores. Figure 1 、 Figure 2 As shown, the core assembly auxiliary tooling disclosed in the embodiment of the present invention includes a base 10, a lifting mechanism and a sliding mechanism, wherein the base 10 can be placed on a core assembly platform or the ground as a base; a sand core can be placed on the sliding mechanism, and the sliding mechanism drives the sand core to move horizontally, so that the sand core is close to or away from other sand cores; the lifting mechanism is supported between the base 10 and the sliding mechanism, and is used to drive the sliding mechanism to move up and down, thereby driving the sand core on the sliding mechanism to move up and down, and adjusting the height between the sand core on the sliding mechanism and other sand cores.

[0029] In the embodiment disclosed in the present invention, the base 10 adopts a box-type frame structure made of high-strength steel, and multiple cross ribs are welded inside the frame structure to improve torsional strength; two angular reinforcing ribs 11 are provided on one side or both sides of the base 10 to ensure that the core assembly auxiliary tooling can be placed stably.

[0030] In the embodiment disclosed in the present invention, the lifting mechanism may include a lifting rod 22 and a lifting platform 21. The two lifting rods 22 are supported between the base 10 and the lifting platform 21. The lifting rods 22 can be manually driven to rotate, and the lifting platform 21 is driven to perform lifting movements by means of a threaded limit connection between the lifting rods 22 and the base 10 or the lifting platform 21.

[0031] In an optional embodiment disclosed herein, the top surface of the base 10 is provided with a threaded hole, and the bottom surface of the lifting platform 21 is provided with a mounting hole. A screw portion is provided at one end of the lifting rod 22 for limited engagement with the threaded hole of the base 10, and the other end is rotatably mounted within the mounting hole of the lifting platform 21 via a bearing. The outer ring of the bearing fits within the mounting hole, and the inner ring fits within the lifting rod 22. Furthermore, a driving portion with a regular hexagonal structure may be provided in the middle of the lifting rod 22. Rotating this driving portion with a wrench can drive the lifting rod 22 to rotate, thereby driving the lifting platform 21 to move upward and downward.

[0032] In another optional embodiment disclosed herein, the top surface of the base 10 is provided with a first threaded hole, the bottom surface of the lifting platform 21 is provided with a second threaded hole, one end of the lifting rod 22 is provided with a first threaded portion that can be limitedly engaged with the first threaded hole, and the other end of the lifting rod 22 is provided with a second threaded portion that can be limitedly engaged with the second threaded hole, and the thread directions of the first and second threaded portions are opposite. In addition, the middle portion of the lifting rod 22 can also be provided with a driving portion with a regular hexagonal structure. By rotating this driving portion with a wrench, the lifting rod 22 can be driven to rotate, thereby driving the lifting platform 21 to move up and down.

[0033] In the embodiment disclosed in the present invention, the lifting mechanism may further include a guide rod 23, two guide rods 23 are respectively fixed to the two ends of the top surface of the base 10, and the bottom of the lifting platform 21 may be provided with a guide hole matching the guide rod 23. The guide rod 23 is arranged in the guide hole. On the one hand, it can guide the lifting movement of the lifting platform 21, and on the other hand, it can form a lowest position lock of the lifting platform 21, limiting the excessive lowering of the lifting platform 21. The top of the guide rod 23 and the orifice of the guide hole can be provided with a mutually cooperating limiting structure, so that the guide rod 23 cannot completely slide out of the guide hole, thereby forming the highest position lock of the lifting platform 21, limiting the excessive rise of the lifting platform 21. Preferably, the guide rod 23 may also be provided with a guide protrusion, and a guide groove may be provided in the guide hole. The size and structure of the guide protrusion and the guide groove are both limited and matched.

[0034] In the embodiment disclosed in the present invention, the sliding mechanism may include a slide rail seat 31 and a slide platform 32. The slide rail seat 31 may be mounted on the top surface of the lifting platform 21, and the slide platform 32 may be slidably mounted on the side of the slide rail seat 31 facing away from the lifting platform 21. Specifically, the slide platform 32 and the slide rail seat 31 may be slidably connected by a dovetail joint, and both ends of the slide rail seat 31 may be provided with a limit structure for the slide platform 32 to prevent the slide platform 32 from sliding off the track when sliding horizontally.

[0035] Furthermore, a strip-shaped mounting groove 33 is provided on the side of the slide rail seat 31 facing the slide 32, and five rollers 34 are installed in the mounting groove 33. When the slide 32 is installed on the sliding side of the slide rail seat 31, the slide 32 contacts the rollers 34. During the sliding process of the slide 32, the rollers 34 rotate to assist, thereby reducing the sliding friction resistance of the dovetail joint and improving the sliding stability of the slide 32. Specifically, Figure 2 As shown, five shaft holes are evenly spaced apart on both inner sides of the mounting groove 33 . Five shafts are evenly arranged in the mounting groove 33 through the shaft holes, and a roller 34 is mounted on each shaft through a bearing.

[0036] Furthermore, an elastic layer can be provided on the top surface of the slide 32, i.e., the contact surface between the slide 32 and the sand core. This can prevent the sand core from being damaged by direct contact with the slide 32, and can also effectively increase the friction between the slide 32 and the sand core, thereby preventing the sand core from falling when the slide 32 slides. Specifically, the elastic layer can be made of an elastic material such as rubber.

[0037] In the second aspect, an embodiment of the present invention further discloses a method of use, which is applied to the core assembly auxiliary tooling described in any of the above embodiments, wherein one core assembly auxiliary tooling is provided at each end of the bottom of the sand core, and the two core assembly auxiliary toolings cooperate to drive the sand core to move up and down and / or horizontally to perform core assembly operations.

[0038] Specifically, when assembling a group of sand cores, two or more core assembly auxiliary fixtures are placed at appropriate locations on the side of the core package. First, the core assembly auxiliary fixture is adjusted and raised to the appropriate height. The sand core is placed on the core assembly auxiliary fixture, with the steps on both sides of the sand core contacting the slide surface of the core assembly auxiliary fixture. The sand core is moved closer to the core package using the sliding mechanism. Then, the lifting rod is turned to lower the sand core to the appropriate height, and then the sand core is pushed to assemble with the other sand cores in the core package. Finally, the fixture can be lowered to remove the core assembly auxiliary fixture or continue with the next sand core assembly operation.

[0039] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A core assembly auxiliary tooling, characterized in that: include: A base, a lifting mechanism and a sliding mechanism, wherein the lifting mechanism is arranged between the base and the sliding mechanism; The sand core is placed on the top of the sliding mechanism, the lifting mechanism drives the sand core to move up and down, and the sliding mechanism drives the sand core to move horizontally.

2. The core assembly auxiliary tooling according to claim 1, characterized in that: The lifting mechanism includes lifting rods and a lifting platform, and a plurality of the lifting rods are supported between the base and the lifting platform; The lifting rod is provided with a screw portion and a driving portion, and the base and / or the lifting platform is provided with a threaded hole that is limitedly matched with the screw portion; The lifting rod is manually driven to rotate by the driving unit, thereby driving the lifting platform to move up and down.

3. The core assembly auxiliary tooling according to claim 2, characterized in that: The lifting mechanism further comprises a guide rod. A guide rod is respectively provided at both ends of the base. A guide hole is provided at the bottom of the lifting platform. The guide rod is arranged in the guide hole.

4. The core assembly auxiliary tooling according to claim 3, characterized in that: The guide rod is provided with a guide protrusion, and the guide hole is provided with a guide groove matching the guide protrusion.

5. The core assembly auxiliary tooling according to claim 2, characterized in that: The screw portion includes a first threaded portion provided at one end of the lifting rod and a second threaded portion provided at the other end of the lifting rod, the first threaded portion being positionally matched with the threaded hole of the base, and the second threaded portion being positionally matched with the threaded hole of the lifting platform; The first threaded portion and the second threaded portion have opposite thread directions.

6. The core assembly auxiliary tooling according to claim 1, characterized in that: The sliding mechanism includes a sliding rail seat and a sliding platform. The sliding rail seat is arranged on the top of the lifting mechanism. The sliding rail seat and the sliding platform are slidably connected through a dovetail tenon.

7. The core assembly auxiliary tooling according to claim 6, characterized in that: The slide rail seat is provided with a mounting groove on one side facing the slide platform, and a plurality of rollers are installed in the mounting groove to slide in cooperation with the slide platform.

8. The core assembly auxiliary tooling according to claim 6, characterized in that: The top surface of the slide is provided with an elastic layer.

9. The core assembly auxiliary tooling according to claim 1, characterized in that: A reinforcing rib is provided on the side of the base.

10. A method of use, applied to the core assembly auxiliary tooling according to any one of claims 1 to 9, characterized in that: Two ends of the bottom of the sand core are each provided with a core assembly auxiliary tooling, and the two core assembly auxiliary toolings cooperate to drive the sand core to move up and down and / or move horizontally to perform core assembly operation.