Protection system for shot blasting of engine workpiece
By using sub-tools with elastic and rigid plates and rope connections on engine workpieces, the problem of shielding the sealing surface and the hole was solved, and the overall synchronous shot blasting of engine workpieces was realized, thus improving the efficiency of shot blasting rust removal.
Patent Information
- Application Number
- CN202520614580.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In the existing technology, the sealing surfaces and inner walls of engine sub-components are easily contaminated and damaged by steel shot during shot blasting, and the dispersed arrangement of multiple sub-components leads to low shot blasting efficiency.
The system employs a first sub-tooling consisting of elastic and rigid plates and a second sub-tooling consisting of rigid step columns. These are bolted to the sealing surface and the hole, and connected by ropes to form an integrated protective system. The spacing can be adjusted to facilitate synchronous hoisting and shot blasting.
The gap between the sealing surface and the hole was reduced, the shielding effect was improved, and the overall synchronous shot blasting of engine workpieces was achieved, thus improving the efficiency of shot blasting rust removal.
Smart Images
Figure CN223917681U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a protective tooling technical field, especially an engine workpiece shot blasting protective system. BACKGROUND
[0002] The engine system needs to be split into each working subcomponent (such as a gear box, an oil pan, a flywheel shell) in the process of shot blasting rust removal and paint removal. However, the sealing surface and the inner wall surface of the cavity of the above-mentioned subcomponent do not need to be shot blasted for rust removal, otherwise they are easily polluted by steel sand and damaged by the steel sand, resulting in leakage and oil and water leakage of the engine in the later period.
[0003] In the related technical solutions, the inventor attempts to attach a board or a cylindrical filler for protection to the position requiring shot blasting protection on each subcomponent. However, the following problems exist: 1. The board and the cylindrical filler are not convenient to attach to the subcomponent tightly, and there is a large gap between the subcomponent and the board or the cylindrical filler for shielding. 2. The above-mentioned multiple boards and cylindrical fillers are arranged dispersedly, and the multiple working subcomponents are also arranged dispersedly in the process of shot blasting rust removal. This arrangement is not convenient to uniformly perform shot blasting rust removal on the multiple subcomponents of the engine, and is not convenient to improve the efficiency of shot blasting rust removal. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a kind of engine workpiece shot blasting protective system, and at least one of the above technical problems can be solved.
[0005] To solve the above technical problems, one or more embodiments of the utility model provide an engine workpiece shot blasting protective system, which includes multiple first sub-tools and multiple second sub-tools, the multiple first sub-tools and the multiple second sub-tools are connected by ropes, the first sub-tool is used to fix and attach to the sealing surface and the inner wall surface of the engine workpiece that do not need to be shot blasted, and the second sub-tool is used to be inserted and fixed into the hole body of the engine workpiece. At least one of the first sub-tool or the second sub-tool has an ear, and the ear is used to lift the engine workpiece.
[0006] The first sub-tool includes an elastic plate and a rigid plate that are attached and fixed to each other, the rigid plate and the elastic plate are fixed by adhesive, the first sub-tool is provided with a bolt, the bolt penetrates the rigid plate and the elastic plate in sequence, and the head end of the bolt penetrates out of the first sub-tool and is fixed into the threaded hole of the workpiece to be shot blasted. The second sub-tool includes a rigid stepped column, the stepped column includes a first column and a second column, the diameter of the first column is smaller than that of the second column, and an elastic sleeve is sleeved on the outer ring of the first column, and in the state of not being pressed, the outer diameter of the elastic sleeve is greater than the inner diameter of the hole body on the workpiece to be inserted. The length of each rope can be adjusted and fixed to change the distance between adjacent two first sub-tools or adjacent two second sub-tools or adjacent first sub-tool and second sub-tool.
[0007] Further, the first sub-tool is provided with a plurality of through holes penetrating through the first sub-tool along the thickness direction, and the plurality of through holes are arranged along the outer edge of the first sub-tool in sequence.
[0008] Further, the bolts other than the lifting lugs in the first sub-tool are connecting bolts, and the second sub-tool is also provided with connecting bolts connected by threads, and the connecting bolts include bolt bodies.
[0009] Further, the rigid plate is a PVC plate, and the elastic plate is a rubber plate, and one side of the rigid plate perpendicular to the thickness direction of the rigid plate is provided with a mounting groove, and part of the structure of the rubber plate is embedded in the mounting groove, and the other part of the structure protrudes out of the mounting groove.
[0010] Further, the first sub-tool is divided into a gear box sub-tool for shielding the gear box, an oil pan sub-tool for shielding the oil pan, and a flywheel housing sub-tool for shielding the flywheel housing.
[0011] Further, the first sub-tool is provided with a plurality of positioning holes, and the positioning holes penetrate through the rigid plate and the elastic plate in sequence, and the positioning holes are used for inserting the positioning columns on the engine workpiece to realize the positioning of the first sub-tool and the engine workpiece.
[0012] Further, the rope includes a winding seat, a first sub-rope and a second sub-rope, one end of the first sub-rope and the second sub-rope is fixedly wound on the winding seat, the winding seat includes two clamping plates, a cylinder is fixed between the two clamping plates, one end of the first sub-rope and the second sub-rope is wound on the cylinder, and a latch is detachably fixed between the two clamping plates.
[0013] The beneficial effects of one or more of the above technical solutions are:
[0014] In the scheme, the protection system includes a plurality of first sub-tools and a plurality of second sub-tools, the first sub-tool includes an elastic plate and a rigid plate, a bolt penetrates through the rigid plate and the elastic plate in sequence, and the head end of the bolt penetrates out of the first sub-tool and is fixed in the threaded hole of the workpiece; the second sub-tool includes a rigid stepped column, the first column of the stepped column has a smaller diameter than the second column, and the outer ring of the first column is fixed with an elastic sleeve, and the outer diameter of the elastic sleeve when not under pressure is greater than the inner diameter of the hole on the workpiece. That is, through the structural arrangement of the bolt, the rigid plate and the elastic plate in the scheme, the elastic plate can be tightly pressed against the sealing surface to be protected or in the workpiece; at the same time, the structure design of the rigid column and the elastic sleeve of the second sub-tool can make it tightly fill the hole to be shielded. In summary, the scheme can reduce the gap and improve the shielding effect of the protection system on the engine workpiece.
[0015] Alternatively, in this design, multiple first and second sub-tools are connected by ropes. The length of the ropes can be adjusted and fixed to change the spacing between adjacent first and second sub-tools, or between adjacent first and second sub-tools. This arrangement allows the sub-tools in the entire protection system to be connected as a whole using ropes, and facilitates the adjustment of the spacing between each sub-tool and engine components. This enables the synchronous hoisting of the entire engine workpiece and multiple sub-tools into or out of the shot blasting equipment, thereby improving the efficiency of shot blasting the engine workpiece. Attached image description:
[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;
[0017] Figure 2 This is a cross-sectional view of one of the first sub-tooling in an embodiment of the present utility model;
[0018] Figure 3 This is a schematic diagram of the winding seat in an embodiment of this utility model;
[0019] Figure 4 This is a cross-sectional view of the stepped column in an embodiment of this utility model.
[0020] In the diagram, 1. Connecting ring; 2. First sub-tooling I; 3. Bolt; 4. Positioning hole; 5. First sub-tooling II; 6. First sub-rope; 7. Second sub-tooling I; 8. Winding seat; 9. Second sub-rope; 10. Second sub-tooling II; 11. First sub-tooling III; 12. Lifting lug; 13. Stepped column; 131. Second column; 132. First column; 133. Elastic sleeve; 201. Elastic plate; 202. Through hole; 203. Rigid plate; 801. Clamping plate; 802. Pin; 803. Cylinder. Detailed Implementation
[0021] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0022] It should be noted that the first sub-tooling in this embodiment is a plate-shaped structure. Its quantity and specific cross-sectional shape are determined according to the sealing surface of the workpiece to be shielded. It can be a rectangle, a regular hexagon, or a regular octagon as shown in the figure, or other irregular shapes. Similarly, the cross-sectional dimensions and quantity of the second sub-tooling can also be set according to the needs of shielding the holes of the sub-workpieces on the engine.
[0023] See Figures 1-4This embodiment provides a protective system for shot blasting engine workpieces, including multiple first sub-tools and multiple second sub-tools connected by ropes. The first sub-tools are used to fix and attach to the sealing surfaces and inner walls of the engine workpiece that do not require shot blasting. The second sub-tools are used to insert and fix into the holes of the engine workpiece. At least one of the first or second sub-tools has a lifting lug 12 for lifting the engine workpiece.
[0024] The first sub-tooling includes an elastic plate 201 and a rigid plate 203 that are attached and fixed together. The rigid plate 203 and the elastic plate 201 are fixed together by adhesive. The first sub-tooling is equipped with bolts 3, which pass through the rigid plate 203 and the elastic plate 201 in sequence. The head of the bolt 3 protrudes from the first sub-tooling and is fixed in the screw hole of the workpiece to be shot blasted. The second sub-tooling includes a rigid stepped column 13, which includes a first column 132 and a second column 131. The diameter of the first column 132 is smaller than that of the second column 131. An elastic sleeve 133 is fitted around the outer ring of the first column 132. Under no pressure, the outer diameter of the elastic sleeve 133 is larger than the inner diameter of the hole in the workpiece to be inserted. The length of each rope can be adjusted and fixed to change the distance between two adjacent first sub-tools, two adjacent second sub-tools, or adjacent first sub-tools and second sub-tools.
[0025] As a specific structural form, in this embodiment, there are three first sub-toolings and two second sub-toolings, namely, first sub-tooling I2, first sub-tooling II7, second sub-tooling I7, second sub-tooling II10 and first sub-tooling III11.
[0026] Specifically, a through hole 202 is provided on the plate of the first sub-tool. This through hole 202 is a smooth hole to facilitate the passage of bolts.
[0027] More specifically, the first sub-tooling has multiple through holes 202 extending through itself along the thickness direction, and the multiple through holes are arranged sequentially along the outer edge of the first sub-tooling. At least two of the bolts 3 are welded with lifting lugs 12.
[0028] In this embodiment, the bolts 3 in the first sub-tooling, excluding the welding lugs 12, are connecting bolts 3. The second sub-tooling also has connecting bolts 3 connected by threads, and each connecting bolt 3 includes a bolt body. In either the first or second sub-tooling, at least one of the bolt bodies has a connecting ring 1 welded to its threaded head. The connecting ring 1 is used to fix the connecting rope.
[0029] In this embodiment, the rigid plate 203 is a PVC plate, the elastic plate 201 is a rubber plate, and the rigid plate 203 has an installation groove on one side perpendicular to its own thickness direction. Part of the structure of the rubber plate is embedded in the installation groove, and another part of the structure protrudes from the installation groove.
[0030] In this embodiment, the first sub-tooling is divided into a gearbox tooling for shielding the gearbox, an oil pan sub-tooling for shielding the oil pan, and a flywheel housing tooling for shielding the flywheel housing.
[0031] In this embodiment, the first sub-tooling is provided with a plurality of positioning holes 4, which pass through the rigid plate 203 and the elastic plate 201 in sequence. The positioning holes 4 are used to insert positioning posts on the engine workpiece to realize the positioning of the first sub-tooling and the engine workpiece.
[0032] In this embodiment, the rope includes a winding seat 8, a first sub-rope 6, and a second sub-rope 9. One end of the first sub-rope 6 and the second sub-rope 9 is fixedly wound around the winding seat 8. The winding seat 8 includes two clamps 801. A cylinder 803 is fixed between the two clamps 801. One end of the first sub-rope 6 and the second sub-rope 9 is wound around the cylinder 803. A pin 802 is detachably fixed between the two clamps 801.
[0033] Specifically, the overall length of the rope can be changed by adjusting the lengths of the first sub-rope 6 and the second sub-rope 9 wound around the cylinder 803. Furthermore, the winding lengths of the first and second sub-ropes can be adjusted after removing the pin 802. When the pin is inserted between the two clamps, the first and second sub-ropes pass between the pin 802 and the cylinder 803, thereby preventing the first and second sub-ropes from reversing and detaching from the cylinder.
[0034] Working Principle: When using this device, the engine is disassembled into multiple sub-components such as the gearbox, oil pan, and flywheel housing. Pre-set first sub-tools, conforming to the sealing surfaces and inner wall surfaces of different sub-components, are attached and fixed to their respective positions using bolts 3. Second sub-tools of appropriate dimensions are then inserted into the corresponding holes in the engine sub-components. Multiple first and second sub-tools are then connected via connecting rings 1 and ropes. By adjusting the rope length, the distance between adjacent engine sub-workpieces is maintained so as not to obstruct the shot blasting process, while allowing the lifting equipment to simultaneously lift all workpieces. Multiple engine workpieces are then placed simultaneously in the shot blasting machine for shot blasting and rust removal.
[0035] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.
[0036] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. A protective system for shot blasting engine workpieces, characterized in that, It includes multiple first sub-toolings and multiple second sub-toolings, which are connected by ropes. The first sub-toolings are used to fix the sealing surface and inner wall surface of the engine workpiece that do not require shot blasting, and the second sub-toolings are used to insert and fix them into the hole of the engine workpiece. At least one of the first sub-toolings or the second sub-toolings has a lifting lug for lifting the engine workpiece. The first sub-tooling includes an elastic plate and a rigid plate that are attached and fixed to each other. The rigid plate and the elastic plate are fixed together by adhesive. The first sub-tooling is provided with bolts that pass through the rigid plate and the elastic plate in sequence. The head of the bolts passes through the first sub-tooling and is fixed in the screw hole of the workpiece to be shot blasted. The second sub-tooling includes a rigid stepped column, which includes a first column and a second column. The diameter of the first column is smaller than that of the second column. The outer ring of the first column is fitted with an elastic sleeve. Under no pressure, the outer diameter of the elastic sleeve is larger than the inner diameter of the hole in the workpiece to be inserted. The length of each rope can be adjusted and fixed to change the distance between two adjacent first sub-tools, or two adjacent second sub-tools, or between adjacent first and second sub-tools.
2. The protective system for shot blasting engine workpieces according to claim 1, characterized in that, The first sub-tooling has multiple through holes that penetrate itself along the thickness direction, and the multiple through holes are arranged sequentially along the outer edge of the first sub-tooling; at least two of the bolts are welded with the lifting lugs.
3. The protective system for shot blasting engine workpieces according to claim 2, characterized in that, In the first sub-tooling, the bolts other than the welding lugs are connecting bolts. The second sub-tooling also has connecting bolts connected by threads. The connecting bolts include a bolt body. In either the first or second sub-tooling, at least one of the bolt bodies has a connecting ring welded to its threaded head. The connecting ring is used to fix the connecting rope.
4. The protective system for shot blasting engine workpieces according to claim 1, characterized in that, The rigid plate is a PVC plate, and the elastic plate is a rubber plate. The rigid plate has a mounting groove on one side perpendicular to its own thickness direction. Part of the structure of the rubber plate is embedded in the mounting groove, and another part of the structure protrudes from the mounting groove.
5. The protective system for shot blasting engine workpieces according to claim 1, characterized in that, The first sub-tooling is divided into a gearbox tooling for shielding the gearbox, an oil pan tooling for shielding the oil pan, and a flywheel housing tooling for shielding the flywheel housing.
6. The protective system for shot blasting engine workpieces according to claim 1, characterized in that, The first sub-tooling is provided with multiple positioning holes, which pass through the rigid plate and the elastic plate in sequence. The positioning holes are used to insert positioning pins on the engine workpiece to achieve positioning of the first sub-tooling and the engine workpiece.
7. The protective system for shot blasting engine workpieces according to claim 1, characterized in that, The rope includes a winding seat, a first sub-rope, and a second sub-rope. One end of the first sub-rope and the second sub-rope are fixedly wound around the winding seat. The winding seat includes two clamps, and a cylinder is fixed between the two clamps. One end of the first sub-rope and the second sub-rope is wound around the cylinder. A pin is detachably fixed between the two clamps.