Tool frame for manufacturing sand box for casting

Abstract

The utility model discloses a casting sand box manufacturing tool frame which comprises a bottom frame, universal wheels capable of being braked are fixedly connected to the bottoms of the four corners of the bottom frame, supporting strips are fixedly connected to the four corners of the top of the bottom frame, the four supporting strips are symmetrically arranged in pairs, sliding strips are symmetrically and fixedly connected to the two sides of the top of the bottom frame, and the sliding strips are fixedly connected to the bottom of the bottom frame. An inner tooth groove is formed in the inner wall of the sliding strip, a plurality of sliding blocks are slidably connected into the inner tooth groove, and the multiple sliding blocks are vertically and evenly arranged. Through cooperation of the bottom frame, the universal wheels capable of being braked, the supporting strips, the sliding strips, the inner tooth grooves, the sliding blocks, the extrusion cavities, the springs, the positioning columns, the positioning holes, the installation bases and the placement frames, the number of the installed placement frames can be selectively controlled according to the size of a sand box, and the distance between the placement frames can be adjusted; therefore, the sand boxes of different shapes and specifications can be placed, and the sand boxes are convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of sand box manufacturing, in particular to a manufacturing tooling rack for sand boxes used for castings. Background Art

[0002] The so-called sand casting is a casting method for producing castings in sand. Before casting, sand boxes of corresponding specifications need to be manufactured according to the structural dimensions of the castings to be produced. At present, most of the sand box processing is directly carried out on the ground or on a platform without special tooling, which is very inconvenient during the handling process of the sand boxes. Since the outer shape and size of the sand box are determined according to the outer structure of the casting, there is a one-to-one correspondence between the sand box and the casting.

[0003] After retrieval, a manufacturing tooling rack for sand boxes used for castings disclosed in Chinese Patent Application No. 201320352822.7 includes at least two groups of support frames. The support frame is composed of a bottom cross beam, a top cross beam and a pull rod connecting the bottom cross beam and the top cross beam. Installation grooves for placing the pull rod are provided at both ends of the bottom cross beam. A support frame is provided at the upper end of the pull rod, and a stop rod parallel to the support frame is provided at the lower end. The utility model forms a support frame by integrating the bottom cross beam, the pull rod and the top cross beam. One or more sand boxes can be directly processed on the bottom cross beam. When manufacturing sand boxes, multiple groups of support frames can be adjusted and fixed according to the outer dimensions of the sand boxes, which can meet the processing of sand boxes of different shapes and specifications, thereby reducing the usage amount and floor area of the tooling. The patent has a simple structure, is convenient to manufacture, can be processed and manufactured on site, can be adjusted according to the actual production needs for sand boxes of different specifications and sizes, has a certain interchangeability, can reduce the manufacturing cycle and manufacturing cost of sand boxes used for castings, and greatly improves the production efficiency.

[0004] Although the above patent has a simple structure, is convenient to manufacture, can be processed and manufactured on site, can be adjusted according to the actual production needs for sand boxes of different specifications and sizes, and has a certain interchangeability, in actual use, during the handling process of the patent, if the pull rod moves laterally to both sides, it is very easy for the pull rod to fall off the support frame, thereby causing the entire tooling rack to disintegrate, and there is a risk of the transported sand box falling, thus reducing the practicability of the patent to a certain extent.

[0005] Therefore, it is necessary to transform the tooling rack in the above patent to effectively prevent the problem that during the handling process, if the pull rod moves laterally to both sides, it is very easy for the pull rod to fall off the support frame, thereby causing the entire tooling rack to disintegrate, and there is a risk of the transported sand box falling. Content of the Utility Model

[0006] To solve the problems raised in the above-mentioned background technology, the purpose of the present utility model is to provide a sand box manufacturing tooling rack for castings, which solves the problem that during the handling process, if the pull rod moves horizontally to both sides, it is very easy to cause the pull rod to fall off the support frame, thereby causing the entire tooling rack to disintegrate, resulting in a risk of the transported sand box falling.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions: A sand box manufacturing tooling rack for castings, including a bottom frame, at the bottom of the four corners of the bottom frame are fixedly connected with brakeable universal wheels, at the four corners of the top of the bottom frame are fixedly connected with support bars, and the four support bars are symmetrically arranged in two groups of two, on both sides of the top of the bottom frame are symmetrically fixedly connected with sliding bars, the inner wall of the sliding bar is provided with internal tooth grooves, inside the internal tooth grooves are slidably connected with a plurality of sliders, and the plurality of sliders are vertically arranged evenly, inside the slider is provided with an extrusion cavity, inside the extrusion cavity is provided with a spring, both ends of the spring are fixedly connected with positioning columns, and the positioning columns are slidably connected with the extrusion cavity, on the surface of the sliding bar are provided with a number of positioning holes, and the positioning holes are used in cooperation with the positioning columns, the bottom of the slider is fixedly connected with a mounting seat, on the top of the mounting seat is provided with a placement frame, and the placement frame is slidably connected with the support bar.

[0008] Preferably, symmetrically fixedly connected to the top of the mounting seat are limiting columns, at both ends of the bottom of the placement frame are symmetrically provided with limiting grooves, and the limiting grooves are clamped with the limiting columns.

[0009] Preferably, fixedly connected to the inner wall of the limiting groove is a magnet, and the magnet is magnetically connected with the limiting column.

[0010] Preferably, fixedly connected to the inner wall of the placement frame are a plurality of horizontal bars, and the plurality of horizontal bars are arranged evenly, fixedly connected to the inner wall of the placement frame are a plurality of vertical bars, and the plurality of vertical bars are respectively arranged in an interleaved manner with the plurality of horizontal bars.

[0011] Preferably, fixedly connected to the inner wall of the support bar are a plurality of rubber blocks, and the plurality of rubber blocks are arranged evenly and are in one-to-one correspondence with a number of positioning holes, at the four corners of the bottom of the placement frame are fixedly connected with damping blocks, and the damping blocks are used in cooperation with the rubber blocks.

[0012] Preferably, fixedly connected to the top of the bottom frame is a falling prevention frame, and the falling prevention frame is located between the two symmetric support bars.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the bottom frame, brakeable universal wheels, support bars, sliding bars, internal tooth grooves, sliders, extrusion chambers, springs, positioning columns, positioning holes, mounting seats, and placement frames, the utility model can selectively control the number of placement frames installed according to the size of the sand box and can adjust the spacing between them, thereby achieving the placement of sand boxes with different shapes and specifications and facilitating their handling.

[0015] 2. Through the setting of the limiting columns and limiting grooves, the utility model can facilitate the disassembly and installation of the placement frames and can limit the positions of the placement frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a three-dimensional schematic diagram of the bottom frame after the placement frame of the utility model is completely disassembled;

[0018] Figure 3 is a bottom view schematic diagram of the placement frame of the utility model;

[0019] Figure 4 is a three-dimensional schematic diagram of the mounting seat and the placement frame of the utility model in cooperation;

[0020] Figure 5 is a partial cross-sectional schematic diagram of the sliding bar and the internal tooth groove of the utility model in cooperation.

[0021] In the figure: 1. Bottom frame; 2. Brakeable universal wheel; 3. Support bar; 4. Sliding bar; 5. Internal tooth groove; 6. Slider; 7. Extrusion chamber; 8. Spring; 9. Positioning column; 10. Positioning hole; 11. Mounting seat; 12. Placement frame; 13. Limiting column; 14. Limiting groove; 15. Magnet; 16. Horizontal bar; 17. Vertical bar; 18. Rubber block; 19. Damping block; 20. Anti-falling frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0023] Such as Figures 1 to 4As shown in the figure, a sand box manufacturing tooling rack for castings provided by the utility model includes a bottom frame 1. At the bottom of the four corners of the bottom frame 1, brakeable universal wheels 2 are fixedly connected. At the four corners of the top of the bottom frame 1, support bars 3 are fixedly connected, and the four support bars 3 are symmetrically arranged in two groups. On both sides of the top of the bottom frame 1, slide bars 4 are symmetrically fixedly connected, and the slide bars 4 are located between two symmetric support bars 3. An internal tooth groove 5 is formed in the inner wall of the slide bar 4. A plurality of sliders 6 are slidably connected inside the internal tooth groove 5, and the plurality of sliders 6 are vertically and evenly arranged. An extrusion cavity 7 is formed inside the slider 6. A spring 8 is arranged inside the extrusion cavity 7. Both ends of the spring 8 are fixedly connected with positioning columns 9, and the positioning columns 9 are slidably connected with the extrusion cavity 7. A plurality of positioning holes 10 are formed on the surface of the slide bar 4, and the positioning holes 10 are used in cooperation with the positioning columns 9. The bottom of the slider 6 is fixedly connected with a mounting seat 11, and the shape of the mounting seat 11 is triangular. A placing frame 12 is arranged on the top of the mounting seat 11, and the placing frame 12 is slidably connected with the support bar 3.

[0024] Reference Figure 2 And Figure 3 , on the top of the mounting seat 11, limiting columns 13 are symmetrically fixedly connected. At both ends of the bottom of the placing frame 12, limiting grooves 14 are symmetrically formed, and the limiting grooves 14 are clamped with the limiting columns 13.

[0025] As a technical optimization scheme of the utility model, through the arrangement of the limiting columns 13 and the limiting grooves 14, it is convenient to disassemble and install the placing frame 12, and the position of the placing frame 12 can be limited.

[0026] Reference Figure 3 , a magnet 15 is fixedly connected to the inner wall of the limiting groove 14, and the magnet 15 is magnetically connected with the limiting column 13.

[0027] As a technical optimization scheme of the utility model, through the arrangement of the magnet 15, the clamping effect between the limiting column 13 and the limiting groove 14 can be improved, and further the installation stability of the placing frame 12 can be improved.

[0028] Reference Figure 1 And Figure 4 , a plurality of horizontal bars 16 are fixedly connected to the inner wall of the placing frame 12, and the plurality of horizontal bars 16 are evenly arranged. A plurality of vertical bars 17 are fixedly connected to the inner wall of the placing frame 12, and the plurality of vertical bars 17 are respectively arranged in a staggered manner with the plurality of horizontal bars 16.

[0029] As a technical optimization scheme of the utility model, through the arrangement of the plurality of horizontal bars 16 and the vertical bars 17, it can be composed of the horizontal horizontal bars 16 and vertical bars 17 to form a strong grid structure, which performs well in the face of pressure and weight and has strong bearing capacity.

[0030] Reference Figure 2 AndFigure 3 The inner wall of the support bar 3 is fixedly connected with multiple rubber blocks 18, and the multiple rubber blocks 18 are evenly arranged and have a one-to-one correspondence with the several positioning holes 10. The four corners of the bottom of the placement frame 12 are fixedly connected with damping blocks 19, and the damping blocks 19 are used in conjunction with the rubber blocks 18.

[0031] As a technical optimization solution of the present invention, by providing the rubber block 18 and the damping block 19 , the friction force generated between the rubber block 18 and the damping block 19 can be utilized to assist in supporting the placement frame 12 .

[0032] refer to Figure 1 and Figure 2 The top of the bottom frame 1 is fixedly connected with an anti-fall frame 20, and the anti-fall frame 20 is located between the two symmetrical support bars 3.

[0033] As a technical optimization solution of the present invention, the provision of the anti-fall frame 20 can prevent the sand box from falling from the front of the device, thereby improving the storage safety of the sand box tooling.

[0034] After the cam 11 is in the working position, the cam 12 is rotated to the left of the cam 12, and the cam 12 is rotated to the right of the cam 12.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sand box manufacturing tooling rack for castings, comprising a bottom frame (1), characterized in that: At the bottom of each of the four corners of the bottom frame (1), a brakeable universal wheel (2) is fixedly connected. At the four corners of the top of the bottom frame (1), support bars (3) are fixedly connected, and the four support bars (3) are symmetrically arranged in two groups of two. On both sides of the top of the bottom frame (1), slide bars (4) are symmetrically and fixedly connected. An internal tooth groove (5) is formed in the inner wall of the slide bar (4). A plurality of sliders (6) are slidably connected in the internal tooth groove (5), and the plurality of sliders (6) are vertically and evenly arranged. An extrusion cavity (7) is formed in the slider (6). A spring (8) is arranged in the extrusion cavity (7). Both ends of the spring (8) are fixedly connected with positioning columns (9), and the positioning columns (9) are slidably connected with the extrusion cavity (7). A plurality of positioning holes (10) are formed in the surface of the slide bar (4), and the positioning holes (10) are used in cooperation with the positioning columns (9). The bottom of the slider (6) is fixedly connected with a mounting seat (11). A placement frame (12) is arranged on the top of the mounting seat (11), and the placement frame (12) is slidably connected with the support bar (3).

2. The manufacturing tooling rack for a sand box used in a casting, characterized in that: Restraining columns (13) are symmetrically and fixedly connected to the top of the mounting seat (11). Restraining grooves (14) are symmetrically formed at both ends of the bottom of the placement frame (12), and the restraining grooves (14) are clamped with the restraining columns (13).

3. A sand box manufacturing tooling rack for castings according to claim 2, characterized in that: A magnet (15) is fixedly connected to the inner wall of the restraining groove (14), and the magnet (15) is magnetically connected with the restraining column (13).

4. A sand box manufacturing tooling rack for castings according to claim 1, characterized in that: A plurality of horizontal bars (16) are fixedly connected to the inner wall of the placement frame (12), and the plurality of horizontal bars (16) are evenly arranged. A plurality of vertical bars (17) are fixedly connected to the inner wall of the placement frame (12), and the plurality of vertical bars (17) are respectively arranged in an interleaved manner with the plurality of horizontal bars (16).

5. The manufacturing tooling rack for a sand box used in a casting, characterized in that: A plurality of rubber blocks (18) are fixedly connected to the inner wall of the support bar (3), and the plurality of rubber blocks (18) are evenly arranged and are in one-to-one correspondence with a plurality of positioning holes (10). Damping blocks (19) are fixedly connected to the four corners of the bottom of the placement frame (12), and the damping blocks (19) are used in cooperation with the rubber blocks (18).

6. The manufacturing tooling rack for a sand box used in a casting, characterized in that: A falling prevention frame (20) is fixedly connected to the top of the bottom frame (1), and the falling prevention frame (20) is located between two symmetric support bars (3).

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