An assembled shot blasting tool for inner wall shot blasting of precision castings

Abstract

The utility model provides a kind of for the inner wall of precision casting shot blasting treatment's assembled shot blasting tool, including material frame, the material frame top two sides are continuously equipped with multiple groups of isosceles angle steel along length direction, and the number of each group isosceles angle steel is two, and between each group isosceles angle steel is equipped with placing assembly, while each isosceles angle steel two sides are equipped with splicing mechanism, the utility model is rotated by clockwise rotating rotating block, and then drive round steel crosspiece, connecting rod and placement block are rotated, to adjust the angle of connecting rod and placement block, again by spacer rod can be positioned fixed to entire placing assembly, and then optimize the impact angle of shot material, so that shot material can be with greater angle impact workpiece surface, can greatly enhance the effect of removing rust layer.

Description

Technical Field

[0001] This utility model mainly relates to the interdisciplinary field of casting metallurgy and surface treatment, specifically a modular shot blasting fixture for shot blasting the inner wall of precision castings. Background Technology

[0002] Due to long-term high-temperature service, heat-resistant steel scrap parts have severe surface oxide and rust. When directly remelted, impurities (such as carbides and oxides) are easily melted into the molten steel, resulting in excessive carbon content in the molten steel (usually >0.6%). This requires frequent slag removal (the amount of slag removed per furnace increases by more than 30%), which seriously affects production efficiency and the purity of the molten steel.

[0003] Existing shot blasting machines have the following drawbacks when processing irregular workpieces: (1) The impact angle of the shot is limited (the incident angle is mostly below 45°), making it difficult to effectively remove dense rust layers; (2) The stacking of workpieces results in a blind area ratio of >40% in shot blasting, leading to uneven surface treatment. Utility Model Content

[0004] This utility model mainly provides an assembled shot blasting fixture for shot blasting the inner wall of precision castings, in order to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A modular shot blasting fixture for shot blasting the inner wall of precision castings includes a material frame. Multiple sets of equilateral angle steels are continuously assembled along the length direction on both sides of the top of the material frame. Each set of equilateral angle steels consists of two steels, and a placement assembly is provided between each set of equilateral angle steels. Additionally, a splicing mechanism is provided on both sides of each equilateral angle steel.

[0006] Preferably, the placement assembly includes a rotating block, a round steel crossbar, a connecting rod, and a placement block. One side of the equilateral angle steel is connected to the rotating block via a rotating shaft. Each group of equilateral angle steels is connected to a round steel crossbar via a rotating shaft. One end of the round steel crossbar is connected to the rotating block. Multiple connecting rods are fixedly connected to the bottom of the round steel crossbar. Each pair of connecting rods forms a group, and a placement block is fixedly connected to the bottom of each connecting rod.

[0007] Preferably, a connecting block is fixedly connected to the bottom of one side of the connecting rod, and a sleeve rod is fixedly connected to one side of the connecting block, and a through groove is opened inside the sleeve rod.

[0008] Preferably, multiple fixing slots are provided on both sides of the material frame, and every three fixing slots form a group.

[0009] Preferably, the splicing mechanism includes fixing blocks and bolts. Fixing blocks are fixedly connected to both sides of the equilateral angle steel, and bolts are fixedly connected to the top of both fixing blocks. The bolts connect the fixing blocks to the material frame.

[0010] Preferably, a limiting rod is slidably fitted inside the through groove, and both sides of the limiting rod pass through the fixing grooves on both sides of the material frame.

[0011] Preferably, the top of the material frame is fixedly connected with four lifting lugs, and each pair of lifting lugs forms a group. Moreover, each group of lifting lugs is equidistantly distributed on both sides of the top of the material frame, with the axis of the material frame as the reference.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By rotating the rotating block clockwise, the round steel crossbar, connecting rod, and placement block are rotated, thereby adjusting the angle between the connecting rod and the placement block. The limiting rod can then limit and fix the entire placement assembly, thereby optimizing the impact angle of the shot and enabling the shot to impact the workpiece surface at a larger angle, which can greatly enhance the effect of removing rust. By setting up multiple sets of placement components, workpieces can be placed in an orderly manner, effectively avoiding workpiece stacking. Workpieces will not block each other during shot blasting, greatly reducing the area ratio of shot blasting blind spots, ensuring the quality of workpiece surface treatment, and enabling each workpiece to receive full and uniform shot blasting treatment, thereby improving the quality and efficiency of the entire production process. The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view at point B in the middle; Figure 4 This is a schematic diagram of the equilateral angle steel, the placement component, the connecting block, and the sleeve rod connection structure of this utility model; Figure 5 This is a schematic diagram of the sleeve rod and limiting rod structure of this utility model.

[0014] The attached diagram is labeled as follows: 1. Material frame; 2. Equal angle steel; 3. Placement assembly; 301. Rotating block; 302. Round steel crossbar; 303. Connecting rod; 304. Placement block; 4. Splicing mechanism; 401. Fixing block; 402. Bolt; 5. Connecting block; 6. Sleeve rod; 7. Through groove; 8. Fixing groove; 9. Limiting rod; 10. Lifting lug. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0016] Please refer to the appendix carefully. Figure 1-5 A modular shot blasting fixture for shot blasting the inner wall of precision castings includes a material frame 1. Four lifting lugs 10 are fixedly connected to the top of the material frame 1, with two lugs forming a group. Each group of lugs 10 is equidistantly distributed on both sides of the top of the material frame 1, with the central axis of the material frame 1 as a reference. This arrangement of the lugs 10 ensures good balance and stability of the fixture during hoisting, facilitating the lifting of the material frame 1 by hooks for shot blasting. Multiple fixing slots 8 are provided on both sides of the material frame 1, with three fixing slots 8 forming a group. The sidewalls of the material frame 1 are evenly distributed. Multiple sets of equilateral angle steels 2 are continuously assembled along the length direction on both sides of the top of the frame 1. Each set of equilateral angle steels 2 consists of two steels, and a placement assembly 3 is provided between each set of equilateral angle steels 2. The placement assembly 3 includes a rotating block 301, a round steel crossbar 302, a connecting rod 303, and a placement block 304. One side of the equilateral angle steel 2 is connected to the rotating block 301 via a rotating shaft. Each set of equilateral angle steels 2 is connected to a round steel crossbar 302 via a rotating shaft. One end of the round steel crossbar 302 is connected to the rotating block 301, allowing the rotation of the rotating block 301 to... The moving round steel crossbar 302 rotates. Multiple connecting rods 303 are fixedly connected to the bottom of the round steel crossbar 302, with two connecting rods 303 forming a group to ensure structural stability. A placement block 304 is fixedly connected to the bottom of each connecting rod 303, directly supporting the workpiece. Connecting blocks 5 are fixedly connected to one side of each connecting rod 303, and sleeve rods 6 are fixedly connected to one side of each connecting block 5. A through groove 7 is opened inside the sleeve rod 6, and a limiting rod 9 is slidably fitted inside the through groove 7. The limiting rod 9 passes through the fixing grooves 8 on both sides of the material frame 1. The placement component 3 can be firmly fixed on the material frame 1 to prevent displacement or shaking during shot blasting, thereby ensuring the uniformity and consistency of shot blasting. At the same time, each equilateral angle steel 2 is provided with a splicing mechanism 4 on both sides. The splicing mechanism 4 includes a fixing block 401 and a bolt 402. The fixing blocks 401 are fixedly connected to both sides of the equilateral angle steel 2, and the tops of the two fixing blocks 401 are fixedly connected with bolts 402. Through the bolts 402, the fixing blocks 401 can be connected to the material frame 1, which not only makes the assembly and disassembly of the tooling simple and quick.

[0017] The specific operation method of this utility model is as follows: In use, the operator rotates the rotating block 301 clockwise, which in turn drives the round steel crossbar 302 to rotate, thereby driving the connecting rod 303 and the placement block 304 below to rotate, thus adjusting the angle between the connecting rod 303 and the placement block 304. Then, one end of the limiting rod 9 is inserted into the fixing groove 8 on one side of the material frame 1, passes through the through groove 7, and exits from the parallel fixing groove 8 on the other side of the material frame 1, thereby limiting and fixing the entire placement assembly 3. Next, the bottom of the workpiece is placed on the top of the placement block 304 and leans against the connecting rod 303. The workpiece is shot blasted by hanging the lifting lug 10 with the hook on the shot blasting machine. By turning the bolt 402, the connection between the fixing block 401 and the material frame 1 can be released, thereby disassembling the equilateral angle steel 2, the round steel crossbar 302, and the placement component 3 for easy cleaning.

[0018] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. An assembled shot blasting fixture for shot blasting the inner wall of precision castings, comprising a material frame (1), characterized in that: The top two sides of the material frame (1) are continuously equipped with multiple sets of equilateral angle steels (2) along the length direction, and each set of equilateral angle steels (2) consists of two steels. A placement component (3) is provided between each set of equilateral angle steels (2), and a splicing mechanism (4) is provided on both sides of each equilateral angle steel (2).

2. The assembled shot blasting fixture for shot blasting the inner wall of precision castings according to claim 1, characterized in that, The placement component (3) includes a rotating block (301), a round steel crossbar (302), a connecting rod (303), and a placement block (304). One side of the equilateral angle steel (2) is connected to the rotating block (301) via a rotating shaft. Each group of equilateral angle steels (2) is connected to a round steel crossbar (302) via a rotating shaft. One end of the round steel crossbar (302) is connected to the rotating block (301). Multiple connecting rods (303) are fixedly connected to the bottom of the round steel crossbar (302). Each pair of connecting rods (303) forms a group. At the same time, a placement block (304) is fixedly connected to the bottom of the connecting rod (303).

3. The assembled shot blasting fixture for shot blasting the inner wall of precision castings according to claim 2, characterized in that, Each of the connecting rods (303) has a connecting block (5) fixedly connected to one side of its bottom, and a sleeve rod (6) is fixedly connected to one side of the connecting block (5), and a through groove (7) is provided inside the sleeve rod (6).

4. The assembled shot blasting fixture for shot blasting the inner wall of precision castings according to claim 1, characterized in that, The material frame (1) has multiple fixing slots (8) on both sides, and every three fixing slots (8) form a group.

5. The assembled shot blasting fixture for shot blasting the inner wall of precision castings according to claim 1, characterized in that, The splicing mechanism (4) includes a fixing block (401) and a bolt (402). The equilateral angle steel (2) is fixedly connected to both sides by a fixing block (401), and the top of the two fixing blocks (401) is fixedly connected to a bolt (402). The bolt (402) connects the fixing block (401) to the material frame (1).

6. The assembled shot blasting fixture for shot blasting the inner wall of precision castings according to claim 3, characterized in that, The through groove (7) is fitted with a limiting rod (9) which slides inside, and both sides of the limiting rod (9) pass through the fixing grooves (8) on both sides of the material frame (1).

7. The assembled shot blasting fixture for shot blasting the inner wall of precision castings according to claim 1, characterized in that, The top of the material frame (1) is fixedly connected with a lifting lug (10), and there are four lifting lugs (10). Each pair of lifting lugs (10) forms a group, and each group of lifting lugs (10) is equidistantly distributed on both sides of the top of the material frame (1) with the central axis of the material frame (1) as the reference.

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