A core assembly auxiliary tooling

Abstract

This utility model relates to a core assembly auxiliary fixture, comprising: a base, a lifting mechanism, and a sliding mechanism. The lifting mechanism is disposed 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. This core assembly auxiliary fixture, through the lifting mechanism, can drive the sand core to move up and down, and through the sliding mechanism, can drive the sand core to move horizontally, improving core assembly accuracy and eliminating casting defects caused by poor core assembly. Multiple core assembly auxiliary fixtures or those used in conjunction with an overhead crane can flexibly adjust the core assembly angle, making it suitable for core assembly of sand cores of various sizes and structures, and widely applicable. This core assembly auxiliary fixture has a simple structure and ingenious design. It does not use hydraulic or electric drive devices; manual drive requires no external power source, and the fixture is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a core assembly auxiliary tooling. Background Technology

[0002] During the casting process, multiple sand cores need to be assembled to form a cavity for pouring molten metal. Sand core assembly is usually carried out by overhead crane. However, when assembling two sand cores horizontally, the stability of the overhead crane is difficult to control. The sand cores are prone to collision and compression, causing sand particles to fall off or even be damaged, which in turn leads to defects such as slag inclusions.

[0003] Meanwhile, overhead crane hoisting presents operational challenges due to the difficulty in ensuring control precision. If there is a positional deviation during sand core hoisting, the sand core is easily misaligned, increasing the scrap rate of castings and the workload of subsequent cleaning and grinding. Especially for sand cores with complex structures or large sizes, it is difficult to flexibly adjust the sand core angle and assembly position during the core assembly process using overhead crane hoisting. Summary of the Invention

[0004] Therefore, it is necessary to provide a core assembly auxiliary tooling that can flexibly adjust the height, horizontal position, and angle to address the aforementioned technical problems.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a core assembly auxiliary tooling, including: a base, a lifting mechanism and a sliding mechanism, wherein the lifting mechanism is disposed between the base and the sliding mechanism; the 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 lifting rods and a lifting platform, with a plurality of lifting rods supported between the base and the lifting platform; each lifting rod is provided with a screw portion and a drive portion, and the base and / or the lifting platform is provided with a threaded hole that limits the screw portion; the lifting rods are manually driven to rotate by the drive portion, thereby driving the lifting platform to move up and down.

[0008] In one embodiment, the lifting mechanism further includes guide rods, with a guide rod at each end of the base and a guide hole at the bottom of the lifting platform, the guide rods being disposed within the guide holes.

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

[0010] In one embodiment, the screw portion includes a first threaded portion disposed at one end of the lifting rod and a second threaded portion disposed at the other end of the lifting rod. The first threaded portion is in limiting engagement with a threaded hole of the base, and the second threaded portion is in limiting engagement with a 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 table. The slide rail seat is disposed on the top of the lifting mechanism, and the slide table is disposed on the top of the slide rail seat. The slide rail seat and the slide table are slidably connected by a dovetail joint.

[0012] In one embodiment, the slide rail seat has a mounting groove on the side facing the slide table, and multiple rollers are installed in the mounting groove to slide in conjunction with the slide table.

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

[0014] In one embodiment, the base is provided with reinforcing ribs on its side.

[0015] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0016] The core assembly auxiliary tooling disclosed in this utility model can drive the sand core to move up and down through a lifting mechanism and drive the sand core to move horizontally through a sliding mechanism, thereby improving the core assembly accuracy and eliminating casting defects caused by poor core assembly. Multiple core assembly auxiliary tooling or the use of an overhead crane can also flexibly adjust the core assembly angle, making it suitable for core assembly of sand cores of various sizes and structures, and has wide versatility.

[0017] The core assembly auxiliary tooling disclosed in this utility model has a simple structure and ingenious design. It does not use hydraulic or electric drive devices, and manual drive does not require external power. The tooling is easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the core assembly auxiliary tooling disclosed in an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of the core assembly auxiliary tooling disclosed in an embodiment of this utility model;

[0020] Explanation of reference numerals in the attached figures:

[0021] 10-Base, 11-Reinforcing rib plate;

[0022] 21-Lifting platform, 22-Lifting rod, 23-Guide rod;

[0023] 31-Slide rail base, 32-Slide table, 33-Mounting groove, 34-Roller. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can 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 complete understanding of the disclosure of this utility model.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] This utility model discloses a core assembly auxiliary fixture. A crane is used to lift and place the sand core at the core assembly station, and the auxiliary fixture is placed at the bottom of the sand core to support it. This auxiliary fixture can drive the sand core to move vertically and horizontally, adjusting it 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 this embodiment of the present invention includes a base 10, a lifting mechanism, and a sliding mechanism. The base 10 serves as a base and can be placed on a core assembly platform or the ground. A sand core can be placed on the sliding mechanism, which drives the sand core to move horizontally, allowing the sand core to move closer to or further 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.

[0028] In the embodiments disclosed in this utility model, the base 10 adopts a box-type frame structure made of high-strength steel, and multiple cross-shaped stiffeners are welded inside the frame structure to improve torsional strength; two angular reinforcing stiffeners 11 are provided on one or both sides of the base 10 to ensure that the core assembly auxiliary tooling can be placed stably.

[0029] In the embodiments disclosed in this utility model, the lifting mechanism may include lifting rods 22 and 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. The lifting platform 21 is driven to move up and down by means of threaded limit connection between the lifting rods 22 and the base 10 or the lifting platform 21.

[0030] In one optional embodiment of this utility model, the top surface of the base 10 is provided with a threaded hole, the bottom surface of the lifting platform 21 is provided with a mounting hole, one end of the lifting rod 22 is provided with a screw portion that can be limited and matched with the threaded hole of the base 10, and the other end is rotatably mounted in the mounting hole of the lifting platform 21 through a bearing, wherein the outer ring of the bearing is assembled with the mounting hole, and the inner ring is assembled with the lifting rod 22. In addition, the middle part of the lifting rod 22 may also be provided with a driving part with a regular hexagonal structure. By rotating the driving part with a wrench, the lifting rod 22 can be driven to rotate, thereby driving the lifting platform 21 to move up and down.

[0031] In another optional embodiment of this utility model, 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 limited and 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 limited and engaged with the second threaded hole. Furthermore, the thread directions of the first threaded portion and the second threaded portion are opposite. In addition, a hexagonal drive portion can be provided in the middle of the lifting rod 22. By rotating this drive portion with a wrench, the lifting rod 22 can be driven to rotate, thereby causing the lifting platform 21 to move up and down.

[0032] In the embodiments disclosed in this utility model, the lifting mechanism may further include guide rods 23. Two guide rods 23 are respectively fixed to both ends of the top surface of the base 10. The bottom of the lifting platform 21 may be provided with guide holes that match the guide rods 23. The guide rods 23 are disposed in the guide holes, which can guide the lifting movement of the lifting platform 21 on the one hand, and form the lowest position lock of the lifting platform 21 on the other hand, limiting the lifting platform 21 from excessively lowering. The top end of the guide rod 23 and the opening of the guide hole may be provided with mutually cooperating limiting structures, 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 and limiting the lifting platform 21 from excessively raising. 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 limited and matched.

[0033] In the embodiments disclosed in this utility model, the sliding mechanism may include a slide rail seat 31 and a slide table 32. The slide rail seat 31 may be installed on the top surface of the lifting platform 21, and the slide table 32 may be slidably installed on the side of the slide rail seat 31 away from the lifting platform 21. Specifically, the slide table 32 and the slide rail seat 31 may be slidably connected by a dovetail joint, and the two ends of the slide rail seat 31 may be provided with limiting structures for the slide table 32 to prevent the slide table 32 from sliding off the track when sliding horizontally.

[0034] Furthermore, the slide rail base 31 has a strip-shaped mounting groove 33 on the side facing the slide table 32, and five rollers 34 are installed in the mounting groove 33. When the slide table 32 is installed on the sliding side of the slide rail base 31, the slide table 32 contacts the rollers 34. During the sliding process of the slide table 32, the rollers 34 rotate to assist, reducing the sliding friction resistance of the dovetail joint and improving the sliding stability of the slide table 32. Specifically, as shown... Figure 2 As shown, five shaft holes are evenly spaced on each of the two 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.

[0035] Furthermore, the top surface of the slide 32, i.e. the contact surface between the slide 32 and the sand core, can be provided with an elastic layer. This layer serves two purposes: firstly, it prevents the sand core from being damaged by direct contact with the slide 32; secondly, it effectively increases the friction between the slide 32 and the sand core, preventing the sand core from falling off when the slide 32 slides. Specifically, this elastic layer can be made of elastic materials such as rubber.

[0036] Secondly, this utility model embodiment also discloses a method of use, applied to the core assembly auxiliary tooling described in any of the above embodiments, wherein one of the core assembly auxiliary tools is provided at each of the bottom ends of the sand core, and the two core assembly auxiliary tools cooperate to drive the sand core to move up and down and / or move horizontally to perform core assembly operations.

[0037] Specifically, when assembling a set of sand cores, two or more core assembly auxiliary fixtures need to be placed at appropriate positions on the side of the core bag. First, adjust the core assembly auxiliary fixtures to a suitable height. Place the sand core on the core assembly auxiliary fixture, with the steps on both sides of the sand core contacting the sliding surface of the core assembly auxiliary fixture. Move the sand core closer to the core bag using the sliding mechanism, then turn the lifting rod to lower the sand core to a suitable height, and then push the sand core to assemble with the other sand cores in the core bag. Finally, the fixture can be lowered, the core assembly auxiliary fixture can be removed, or the core assembly operation can continue to the next sand core.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A core assembly auxiliary tooling, characterized in that, include: The system includes a base, a lifting mechanism, and a sliding mechanism, wherein the lifting mechanism is disposed between the base and the sliding mechanism. The 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; The sliding mechanism includes a slide rail base and a slide table. The slide rail base is disposed on the top of the lifting mechanism, and the slide rail base and the slide table are slidably connected by a dovetail tenon. The slide rail base is provided with a mounting groove on the side facing the slide table, and multiple rollers are installed in the mounting groove to slide in cooperation with the slide table.

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

3. The core assembly auxiliary tooling according to claim 2, characterized in that, The lifting mechanism also includes guide rods. Each end of the base is provided with a guide rod, and the bottom of the lifting platform is provided with a guide hole, in which the guide rods are disposed.

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 that matches the guide protrusion.

5. The core assembly auxiliary tooling according to claim 2, characterized in that, The screw section includes a first threaded portion disposed at one end of the lifting rod and a second threaded portion disposed at the other end of the lifting rod. The first threaded portion is limited to the threaded hole of the base, and the second threaded portion is limited to 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 top surface of the slide is provided with an elastic layer.

7. The core assembly auxiliary tooling according to claim 1, characterized in that, The base is provided with reinforcing ribs on its sides.

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