A kind of correction tool for solving the deformation of thin-walled square shell castings

Abstract

The utility model discloses a kind of correct tool for solving thin-walled square shell casting deformation, it is related to casting deformation correction technical field. Including roof, roof bottom four sides are evenly installed and fixed with extrusion block, bottom plate is set below roof, bottom plate top four sides are evenly provided with correction block, extrusion block is set to extrusion bevel towards inner side surface, correction block upper portion is set to contact bevel towards outer side surface. The utility model will be installed to the correction tool on press machine, then the casting body to be corrected is placed into tool, press machine is down, so that the correction block on tool extrudes casting body, so that casting body reaches predetermined size, realizes full automation correction, it is convenient to cooperate with press machine accurate control stroke, so as to accurately control extrusion amount, so that the size of casting has consistency, eliminate artificial and other influence quality unstable factor, by this tool, efficiently, accurately correct this kind of square shell casting, solve casting deformation problem.

Description

Technical Field

[0001] This utility model relates to the field of casting deformation correction technology, specifically a correction tooling for solving the deformation of thin-walled square shell castings. Background Technology

[0002] Thin-walled square shell castings are metal parts manufactured through casting processes. Their main characteristics are thin walls and square shape. They are often used in applications where a certain load needs to be borne but there are requirements for weight and volume.

[0003] Currently, stainless steel thin-walled square shell castings are prone to deformation during investment casting, leading to dimensional defects, affecting CNC machining accuracy, and ultimately resulting in substandard finished products. Therefore, in actual production, it is necessary to correct the blanks of such castings to ensure that the dimensions meet the drawing requirements. Traditional solutions typically employ manual or semi-automatic correction methods, which are inefficient, result in poor dimensional consistency, and unstable quality after correction. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a straightening fixture for solving the deformation of thin-walled square shell castings, thereby addressing the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a straightening fixture for solving the deformation of thin-walled square shell castings, comprising a top plate, with extrusion blocks fixedly installed on all four sides of the bottom of the top plate, a bottom plate below the top plate, and correction blocks on all four sides of the top of the bottom plate. The extrusion blocks are configured with extrusion inclined surfaces on their inward sides, and the correction blocks are configured with contact inclined surfaces on their upper outward sides. The extrusion blocks and correction blocks are adapted to each other through the extrusion inclined surfaces and contact inclined surfaces. An arched limiting block is slidably sleeved on the correction block and is fixedly installed on the bottom plate. Fixing blocks are provided on the outward sides of the correction blocks and are fixedly installed on the bottom plate.

[0006] Preferably, a rod is laterally fixed to the lower outward side of the correction block, the rod is slidably inserted into the fixed block at the corresponding position, a baffle is fixed to the outer end of the rod, and a first spring is sleeved on the outer end of the rod.

[0007] Preferably, the outer end of the first spring is connected to the baffle, the inner end of the first spring is connected to the outer side of the fixing block, and a placement groove is provided in the middle of the top surface of the bottom plate, on which a casting body is adapted to be placed.

[0008] Preferably, a connecting block is installed in the middle of the bottom surface of the top plate, a top pressing block is provided below the connecting block, and elastic limiting structures are provided at the four corners between the top pressing block and the connecting block. The top pressing block is adapted to contact the top surface of the casting body.

[0009] Preferably, the bottom plate is fixed with limit bars at the four corners, the top plate has bar holes at the four corners that are adapted to the limit bars, and the top plate and bottom plate are provided with installation components between them and the template. The top plate and bottom plate are respectively installed on the upper template and lower template of the press.

[0010] Preferably, the mounting assembly includes mounting holes symmetrically opened on both sides of the top plate and the bottom plate. Mounting blocks are adapted to be inserted into the mounting holes. The mounting block located at the top position rotates downward to insert a rotating tube, and the mounting block located at the bottom position rotates upward to insert a rotating tube. A limiting vertical rod is slidably inserted at the outer end of the rotating tube. A sleeve is fixed at the outer end of the limiting vertical rod. A stop block is symmetrically fixed at the open end of the sleeve. A second spring is connected between the inner end of the limiting vertical rod and the rotating tube. The stop blocks are stretched and pressed to contact the bottom surface of the top plate and the top surface of the bottom plate, respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This straightening fixture for solving the deformation of thin-walled square shell castings is installed on a press. The casting to be straightened is then placed into the fixture, and the press descends, causing the straightening blocks on the fixture to compress the casting, thereby bringing the casting to the predetermined size. This achieves fully automated straightening, facilitating precise control of the press stroke and thus the extrusion amount, ensuring consistent casting dimensions and eliminating unstable factors such as human error that affect quality. This fixture enables efficient and precise straightening of such square shell castings, solving the casting deformation problem. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention regarding the removal of the mounting components;

[0014] Figure 2 This is a cross-sectional view of the removal of the mounting components according to the present invention;

[0015] Figure 3 This is a three-dimensional disassembled structural diagram of the present invention for removing the installation components;

[0016] Figure 4 This is a three-dimensional structural diagram of the present invention, including the mounting components;

[0017] Figure 5 This is a three-dimensional disassembled structural diagram of the installation component unit structure of this utility model.

[0018] In the diagram: 1. Top plate; 2. Extrusion block; 201. Extrusion slope; 3. Correction block; 301. Contact slope; 302. Arched limiting block; 303. Fixing block; 304. Insert rod; 305. First spring; 4. Casting body; 5. Base plate; 501. Limiting rod; 6. Connecting block; 601. Top pressing block; 7. Mounting hole; 701. Mounting block; 702. Rotating tube; 703. Limiting vertical rod; 704. Sleeve; 705. Stop block; 706. Second spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the casting process, straightening fixtures are required. The straightening fixture provided by this utility model is specifically used for automated four-sided extrusion straightening of thin-walled square shell casting body 4 to ensure the straightening effect. In the process of using this fixture, pre-installation and other preparatory work is required to ensure the normal use of this fixture.

[0021] like Figures 1-5 As shown, this utility model provides a technical solution: a straightening fixture for solving the deformation of thin-walled square shell castings, including a top plate 1, with extrusion blocks 2 fixedly installed on all four sides of the bottom of the top plate 1, a bottom plate 5 below the top plate 1, and correction blocks 3 on all four sides of the top of the bottom plate 5. The extrusion blocks 2 are configured with an extrusion slope 201 on their inward side, and the correction blocks 3 are configured with a contact slope 301 on their outward side. The extrusion blocks 2 and correction blocks 3 are adapted to each other through the extrusion slope 201 and the contact slope 301. An arched limiting block 302 is slidably sleeved on the correction block 3 and is fixedly installed on the bottom plate 5. Fixing blocks 303 are provided on the outward side of the correction blocks 3 and are fixedly installed on the bottom plate 5.

[0022] In this embodiment, a rod 304 is horizontally fixed to the outer side of the lower part of the correction block 3. The rod 304 is slidably inserted into the fixing block 303 at the corresponding position. A baffle is fixed to the outer end of the rod 304. A first spring 305 is sleeved on the outer end of the rod 304. The outer end of the first spring 305 is connected to the baffle. The inner end of the first spring 305 is connected to the outer side of the fixing block 303. A placement groove is opened in the middle of the top surface of the bottom plate 5. A casting body 4 is adapted to be placed in the placement groove. A connecting block 6 is installed in the middle of the bottom surface of the top plate 1. A pressing block 601 is set below the connecting block 6. An elastic limiting structure is set at the four corners between the pressing block 601 and the connecting block 6. The pressing block 601 is adapted to contact the top surface of the casting body 4.

[0023] In this embodiment, limit bars 501 are fixed at the four corners of the base plate 5, and bar holes adapted to the limit bars 501 are opened at the four corners of the top plate 1. An installation assembly is provided between the top plate 1 and the base plate 5 and the template. The top plate 1 and the base plate 5 are respectively installed on the upper template and the lower template of the press. The correction fixture is installed on the press, and the casting body 4 to be corrected is placed in the fixture. The press moves downward, so that the correction block 3 on the fixture squeezes the casting body 4, thereby making the casting body 4 reach the predetermined size, realizing fully automated correction, which is convenient to cooperate with the press to accurately control the stroke, thereby accurately controlling the extrusion amount, making the dimensions of the casting consistent, eliminating unstable factors such as human error that affect quality. This fixture can efficiently and accurately correct such square shell castings and solve the problem of casting deformation. It should be noted that the press and the casting body 4 are existing technologies.

[0024] In this embodiment, the mounting assembly includes mounting holes 7 symmetrically opened on both sides of the top plate 1 and the bottom plate 5. Mounting blocks 701 are fitted into the mounting holes 7. The mounting block 701 at the top position rotates downward to insert a rotating tube 702, and the mounting block 701 at the bottom position rotates upward to insert a rotating tube 702. A limiting vertical rod 703 is slidably inserted at the outer end of the rotating tube 702. A sleeve 704 is fixed at the outer end of the limiting vertical rod 703. A stop block 705 is symmetrically fixed at the open end of the sleeve 704. A second spring 706 is connected between the inner end of the limiting vertical rod 703 and the rotating tube 702. The stop blocks 705 stretch and press against the bottom surface of the top plate 1 and the top surface of the bottom plate 5, respectively. It should be noted that the sleeve 704 rotates synchronously with the rotating tube 702 and the second spring 706 through the limiting vertical rod 703. The second spring 706 plays an auxiliary locking role to ensure the convenience of installation and disassembly.

[0025] Working principle: When using this fixture for calibration, the top plate 1 is fixed to the upper template of the press via the mounting assembly. As the press moves downward, the top plate 1 moves downward, and the extrusion block 2 follows the top plate 1 downward. The bottom plate 5 is fixed to the lower template of the press via the mounting assembly. Since one end of the calibration block 3 is connected to the first spring 305, it can slide freely. When the calibration block 3 is subjected to downward pressure from the extrusion block 2, it slides towards the center, thereby extruding the casting body 4. When the press descends to the predetermined stroke, the extrusion block 2 can no longer apply pressure to the calibration block 3 downward, and the calibration block 3 stops moving towards the casting body 4. The casting body 4 remains in the current extrusion state. After holding the pressure for about 10 seconds, the press is raised, the extrusion block 2 moves upward, the calibration block 3 is released from external force, slides outward back to the initial state, and finally the casting body 4 is removed, completing the calibration.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A straightening fixture for solving deformation of thin-walled square shell castings, comprising a top plate (1), characterized in that: The top plate (1) has four extrusion blocks (2) installed and fixed on all four sides of the bottom. The bottom plate (5) is set below the top plate (1). The bottom plate (5) has four correction blocks (3) on all four sides of the top. The extrusion block (2) is set as an extrusion slope (201) on the inner side. The correction block (3) is set as a contact slope (301) on the upper side of the outer side. The extrusion block (2) and the correction block (3) are matched by the extrusion slope (201) and the contact slope (301). The correction block (3) is slidably fitted with an arched limiting block (302). The arched limiting block (302) is installed and fixed on the bottom plate (5). The correction block (3) is set with a fixing block (303) on the outer side. The fixing block (303) is fixedly installed on the bottom plate (5).

2. The straightening fixture for solving the deformation of thin-walled square shell castings according to claim 1, characterized in that: The lower part of the correction block (3) is laterally fixed with a rod (304) on the outer side. The rod (304) is slidably inserted into the corresponding fixed block (303). A baffle is fixed at the outer end of the rod (304), and a first spring (305) is sleeved on the outer end of the rod (304).

3. The straightening fixture for solving the deformation of thin-walled square shell castings according to claim 2, characterized in that: The outer end of the first spring (305) is connected to the baffle, and the inner end of the first spring (305) is connected to the outer side of the fixing block (303). A placement groove is provided in the middle of the top surface of the bottom plate (5), and a casting body (4) is placed on the placement groove.

4. The straightening fixture for solving the deformation of thin-walled square shell castings according to claim 3, characterized in that: A connecting block (6) is installed in the middle of the bottom surface of the top plate (1). A top pressure block (601) is provided below the connecting block (6). An elastic limiting structure is provided at the four corners between the top pressure block (601) and the connecting block (6). The top pressure block (601) is adapted to contact the top surface of the casting body (4).

5. The straightening fixture for solving the deformation of thin-walled square shell castings according to claim 1, characterized in that: The bottom plate (5) has a limit bar (501) fixed at its four corners, and the top plate (1) has a bar hole at its four corners that is compatible with the limit bar (501). The top plate (1) and the bottom plate (5) are provided with an installation component between them and the template. The top plate (1) and the bottom plate (5) are respectively installed on the upper template and the lower template of the press.

6. The straightening fixture for solving the deformation of thin-walled square shell castings according to claim 5, characterized in that: The mounting assembly includes mounting holes (7) symmetrically opened on both sides of the top plate (1) and the bottom plate (5). Mounting blocks (701) are fitted into the mounting holes (7). The mounting block (701) at the top position rotates downward to insert a rotating tube (702). The mounting block (701) at the bottom position rotates upward to insert a rotating tube (702). A limiting vertical rod (703) is slidably inserted at the outer end of the rotating tube (702). A sleeve (704) is fixed at the outer end of the limiting vertical rod (703). A stop block (705) is symmetrically fixed at the open end of the sleeve (704). A second spring (706) is connected between the inner end of the limiting vertical rod (703) and the rotating tube (702). The stop block (705) stretches and presses against the bottom surface of the top plate (1) and the top surface of the bottom plate (5) respectively.

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