Intermediate casting placing rack

Abstract

The utility model belongs to the field of placing frames, and provides an intermediate casting placing frame which comprises a plurality of assembling frames which are sequentially stacked from bottom to top, a cover plate is arranged on the assembling frame on the uppermost layer, each assembling frame comprises a frame, positioning pins are arranged at the four corners of the top face of each frame, a pair of bottom plates is arranged on the bottom face of each frame, and the positioning pins are arranged on the bottom plates. The positioning pins in the lower layer of assembly frame are supported and limited on the bottom plate in the upper layer of assembly frame, each frame is provided with a pair of tool plates, each tool plate is provided with a plurality of workpiece limiting openings, the tool plates are provided with angular positioning blocks corresponding to the workpiece limiting openings, the bottom surface of each tool plate is provided with a pair of bottom grooves corresponding to the angular positioning blocks, and the bottom grooves are connected with the tool plates. A guide groove is formed in the bottom groove, the diameter of the bottom groove is larger than that of the guide groove, and a screw penetrates into the bottom groove. The intermediate casting placing rack aims at solving the problems that an intermediate casting is prone to being damaged in the intermediate casting cleaning process of an existing intermediate casting placing rack, and the intermediate casting is troublesome, time-consuming and labor-consuming in the taking and placing process.

Description

Technical Field

[0001] The utility model belongs to the field of placing racks, and particularly relates to a placing rack for intermediate body castings. Background Art

[0002] A turbocharger is actually an air compressor that increases the intake air volume by compressing air. It uses the inertia impulse of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller. The impeller compresses and delivers the air sent from the air filter pipeline, making it pressurized and entering the cylinder. After the production of the intermediate body castings of the turbocharger is completed, the internal and outer walls need to be cleaned of stains.

[0003] When actually cleaning the intermediate body castings, they are usually placed in a placing rack for centralized cleaning. After the intermediate body castings are placed in the placing rack, the intermediate body castings will rub and collide with each other, resulting in scratches on the intermediate body castings. In addition, there are also some placing racks that are multi-layered tooling plates. A number of workpiece limiting ports are opened on each tooling plate, and angular positioning blocks are fixedly arranged corresponding to each workpiece limiting port. By placing the intermediate body castings into the workpiece limiting ports according to requirements, the angular positioning blocks are used to limit them. Although this can avoid damage to the intermediate body castings during the cleaning process, the angular positioning blocks cannot be avoided during the process of taking and placing the intermediate body castings, making the process of taking and placing the intermediate body castings more troublesome, time-consuming and laborious. Summary of the Utility Model

[0004] In view of the above problems, the purpose of the utility model is to provide a placing rack for intermediate body castings, aiming to solve the problems that the existing placing rack for intermediate body castings is easy to damage the intermediate body castings during the cleaning process, and the process of taking and placing the intermediate body castings is more troublesome, time-consuming and laborious.

[0005] The utility model adopts the following technical scheme: the placing rack for intermediate body castings includes a number of assembled racks stacked in sequence from bottom to top. A cover plate is arranged on the topmost assembled rack. The assembled rack includes a frame. Positioning pins are arranged at the four corner positions on the top surface of the frame, and a pair of bottom plates are arranged on the bottom surface. The positioning pins in the lower-layer assembled rack support and limit the bottom plates in the upper-layer assembled rack. A pair of tooling plates are arranged on each frame. A number of workpiece limiting ports are opened on the tooling plates, and angular positioning blocks are arranged corresponding to each workpiece limiting port on the tooling plates. A pair of bottom grooves are opened on the bottom surface of the tooling plate corresponding to each angular positioning block, and guide grooves are opened in the bottom grooves. The diameter of the bottom grooves is larger than that of the guide grooves. A screw rod penetrates into the bottom grooves, passes through the guide grooves and is fixed on the angular positioning blocks. A spring is arranged on the screw rod in the bottom grooves.

[0006] Further, an arc-shaped notch is opened on the angular positioning block.

[0007] Further, the positioning pin includes a fixing column, and a frustum is provided on the fixing column. The bottom diameter of the frustum is smaller than the diameter of the fixing column.

[0008] Further, support columns are provided at the four corner positions of the bottom of the cover plate.

[0009] Further, a pair of positioning columns are provided inside the bottom plate. The positioning columns and the support columns are both provided with positioning grooves matching the frustum.

[0010] The beneficial effects of the present utility model are as follows: After the intermediate casting is installed in the workpiece limit opening according to the requirements, the angular positioning block presses the chassis of the intermediate casting, improving the installation stability of the intermediate casting; when the intermediate casting needs to be removed, only need to move it upward. During the movement of the intermediate casting, the intermediate casting will push the angular positioning block upward. The angular positioning block moves upward a small distance until the intermediate casting is away from the workpiece limit opening, and then tilt the intermediate casting, and the intermediate casting can be taken out. Description of the Drawings

[0011] Figure 1 is a structural diagram of the intermediate casting provided by the present utility model.

[0012] Figure 2 is an overall view of an intermediate casting placement rack provided by the present utility model.

[0013] Figure 3 is a schematic diagram of an assembly rack provided by the present utility model.

[0014] Figure 4 is a schematic diagram of the structure of the positioning column provided by the present utility model.

[0015] Figure 5 is a schematic diagram of the installation of the angular positioning block provided by the present utility model.

[0016] Figure 6 is a cross-sectional view of the angular positioning block provided by the present utility model. Detailed Embodiment

[0017] In order to make the patent purpose, technical solution and advantages of the present utility model clearer, the following further describes the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] In order to illustrate the technical solution described in the present utility model, the following will be described through specific embodiments.

[0019] For the convenience of description, only the parts related to the embodiments of the present utility model are shown.

[0020] Combined with Figure 2-6As shown in the figure, the intermediate casting placement rack includes several assembly racks stacked one above the other from bottom to top. A cover plate 1 is provided on the topmost assembly rack. The assembly rack includes a frame 2. Positioning pins 3 are provided at the four corner positions on the top surface of the frame 2, and a pair of bottom plates 4 are provided on the bottom surface. The positioning pins 3 in the lower-layer assembly rack support and limit the bottom plates 4 in the upper-layer assembly rack. A pair of tooling plates 5 are provided on each frame 2. Several workpiece limiting openings 6 are formed in the tooling plates 5. Angular positioning blocks 7 are provided corresponding to each workpiece limiting opening 6 on the tooling plates 5. A pair of bottom grooves 8 are formed on the bottom surface of the tooling plates 5 corresponding to each angular positioning block 7. A guide groove 9 is formed in the bottom groove 8, and the diameter of the bottom groove 8 is larger than that of the guide groove 9. A screw 10 is inserted into the bottom groove 8. The screw 10 passes through the guide groove 9 and is fixed to the angular positioning block 7. A spring 11 is provided on the screw 10 inside the bottom groove 8.

[0021] In this embodiment, the intermediate casting placement rack is composed of three groups of assembly racks and a cover plate. The cover plate is installed on the topmost assembly rack. The upper group of assembly racks is installed on the lower group of assembly racks. Before the cleaning work process of the intermediate castings, the placement rack can be assembled according to the actual situation on site to achieve the purpose of batch cleaning of the intermediate castings.

[0022] In this structure, as Figure 4 , a pair of positioning columns 12 are provided inside the bottom plate 4. When assembling the placement rack, first place a group of assembly racks flat at the assembly position. At this time, this assembly rack is the first assembly rack. The staff first place the intermediate castings into the first assembly rack one by one according to the requirements and position them using the angular positioning blocks. The staff then carry the next group of assembly racks and move them towards the current assembly rack. At this time, the next group of assembly racks is the second assembly rack. When the second assembly rack moves above the first assembly rack, fine-tune the position of the second assembly rack so that the four positioning columns in the second assembly rack are respectively aligned with the four positioning pins in the first assembly rack, and then move the second assembly rack downward until the positioning pins penetrate into the corresponding positioning columns. At this time, the second assembly rack is installed on the first assembly rack. The staff then place the intermediate castings into the second assembly rack according to the requirements and can install the third assembly rack on the second assembly rack in the above manner.

[0023] As Figure 2-3 , the positioning pin 3 includes a fixed column 31. A frustum 32 is provided on the fixed column 31. The bottom surface diameter of the frustum 32 is smaller than the diameter of the fixed column 31. Support columns 13 are provided at the four corner positions on the bottom of the cover plate 1. The positioning columns 12 and the support columns 13 are both provided with positioning grooves 18 matching the frustum.

[0024] During the assembly process of the placement rack, when the four positioning columns in the second assembly rack are aligned with the four positioning pins in the first assembly rack, the positioning columns are aligned with the round cones in the positioning pins one by one. Then, the staff moves the second assembly rack toward the first assembly rack. During the movement, the round cones are inserted into the positioning grooves of the corresponding positioning columns, and the fixed columns are supported by the positioning columns above. During the assembly process, the positioning grooves play a role in guiding and positioning.

[0025] After the third assembly rack is installed on the second assembly rack, the staff continues to place the intermediate castings on the third assembly rack as required. Finally, the cover plate is installed on the third assembly rack. Specifically: when installing the cover plate on the third assembly rack, first, the four support columns on the bottom of the cover plate are set downward, and the staff moves the cover plate until the four support columns are aligned with the four positioning pins in the third assembly rack. Then move the cover plate downward until the round cones in the four positioning pins are inserted into the positioning grooves in the support columns one by one. At this time, the cover plate is assembled on the third assembly rack. Finally, the intermediate castings in the placement rack can be cleaned with the help of relevant equipment.

[0026] like Figure 3 The angular positioning block 7 is provided with an arc-shaped notch 14. Figure 1 As shown, an upper plate 16 is formed above the intermediate casting 15, and the chassis 17 is formed at the bottom. When the intermediate castings are to be placed one by one in the assembly rack, first take an intermediate casting close to the angular positioning block, and the intermediate casting is close to and located above the workpiece limit opening. Push the angular positioning block upward, the angular positioning block moves upward a short distance, and then move the intermediate casting toward the arc-shaped notch until the corresponding position of the chassis of the intermediate casting is located in the arc-shaped notch, and then put down the intermediate casting, the bottom of the intermediate casting is inserted into the workpiece limit opening, and the chassis falls on the tooling plate. Release the angular positioning block, and under the action of the spring, the angular positioning block presses the chassis.

[0027] After cleaning, if you want to remove the intermediate casting, first remove the cover plate, then you can remove the intermediate casting in the third placement rack. At this time, you only need to directly pick up the intermediate casting and move it upward. During the movement of the intermediate casting, the intermediate casting will move the angular positioning block upward. The angular positioning block moves upward a short distance until the intermediate casting is away from the workpiece limit opening, and then tilt the intermediate casting so that the intermediate casting is out of the arc notch. At this time, the intermediate casting is taken out.

[0028] During the upward movement of the angular positioning block, the screw rod moves upward a short distance and the spring is compressed. When the intermediate casting is taken out, the spring recovers its deformation and the angular positioning block is reset under the action of the spring. The whole process is relatively simple and there is no need to avoid the angular positioning block during the removal of the intermediate casting.

[0029] In addition, as Figure 3 , in this placement rack, round holes 19 are opened at both ends of the tooling plate 5, and threaded holes (blocked in the figure) are correspondingly opened at both ends of the frame 2 for the round holes 19. When the tooling plate is to be installed on the frame, the installation requirements of the tooling plate are placed on the frame. At this time, the round holes and the threaded holes at the same end are aligned. A locking nut is used to pass through the round hole and be screwed into the threaded hole. At this time, the tooling plate is installed on the frame.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the invention shall be included in the protection scope of the present invention.

Claims

1. An intermediate casting placement rack, characterized in that: The intermediate casting rack includes a number of assembly racks stacked in sequence from bottom to top. A cover plate is provided on the topmost assembly rack. The assembly rack includes a frame. Positioning pins are provided at the four corner positions of the top surface of the frame, and a pair of bottom plates are provided at the bottom surface. The positioning pins in the lower-layer assembly rack are supported and limited by the bottom plates in the upper-layer assembly rack. A pair of tooling plates are provided on each frame. A number of workpiece limiting openings are formed in the tooling plates. Angular positioning blocks are provided corresponding to each workpiece limiting opening on the tooling plates. A pair of bottom grooves are formed in the bottom surface of the tooling plate corresponding to each angular positioning block. A guide groove is formed in the bottom groove. The diameter of the bottom groove is larger than that of the guide groove. A screw is inserted into the bottom groove. The screw passes through the guide groove and is fixed on the angular positioning block. A spring is provided on the screw in the bottom groove.

2. The intermediate casting placement rack according to claim 1, characterized in that: An arc-shaped notch is formed in the angular positioning block.

3. The intermediate casting placement rack according to claim 2, characterized in that: The positioning pin includes a fixed column, and a frustum is provided on the fixed column. The bottom surface diameter of the frustum is smaller than the diameter of the fixed column.

4. The intermediate casting placement rack according to claim 3, wherein: Support columns are provided at the four corner positions of the bottom of the cover plate.

5. The intermediate casting placing rack according to claim 4, wherein: A pair of positioning columns are provided in the bottom plate. Positioning grooves matching the frustum are formed in the positioning columns and the support columns.

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