A device for preventing distortion of an elongated strip-shaped lost foam casting

Abstract

The application discloses a device for preventing distortion of an elongated strip-shaped lost foam casting, and relates to the technical field of lost foam equipment. The device comprises a fixed base, a support assembly arranged on the top of the fixed base for stabilizing a model, and the model is arranged on the top of the support assembly. The support blocks are attached to the left and right sides and the bottom surface of the lost foam model. The installation sleeve and the telescopic rod can change their positions. The telescopic rods and the support blocks are installed at the positions where the model needs to be placed. The support blocks are placed on the bottom and the two sides of the model. The position of the installation sleeve is adjusted according to the size requirement of the casting. The model is accurately fixed on the device, and the generation of model deformation in the stage is avoided. The problem that the model shaping and correction are lacked in the background technology and the modeling quality is affected is solved. The support blocks are attached to the two sides of the lost foam model for correction. The corrected model and the device are used for surface modeling before modeling, the weight extrusion deformation caused by the sand is effectively reduced, and the quality of the casting is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lost foam equipment, in particular to a device for preventing distortion of long strip-shaped lost foam castings. BACKGROUND

[0002] Full mold (lost foam) casting is one of the most commonly used castings today, and EPS foam is commonly used to make models of castings, which are subjected to mold inspection, spraying, drying, and then combined with appropriate casting processes for modeling, pouring, polishing, and other processes to obtain castings.

[0003] The prior art patent CN115647322A discloses a pressure maintaining and hot shaping device for aluminum alloy grid plate castings, which comprises an upper pressure maintaining plate, a lower pressure maintaining plate, a hinge, a locking assembly, a positioning pin, an electric heating assembly for preheating and slow cooling of the castings, the upper pressure maintaining plate and the lower pressure maintaining plate are movably connected through the hinge on one side, two castings are positioned in the upper pressure maintaining plate and the lower pressure maintaining plate, a plurality of locking assemblies are arranged on the outer periphery of the lower pressure maintaining plate, and the obtained castings have good tear resistance, no distortion and high flatness, but this device is used for fixing and preventing deformation of large-area and high-regularity plate parts in actual application, and cannot effectively fix long and thin castings with different heights at the bottom and no support points on both sides, which is prone to distortion of the castings. Therefore, the present application provides a device for preventing distortion of long strip-shaped lost foam castings to solve the above problems. SUMMARY

[0004] The present application aims to provide a device for preventing distortion of long strip-shaped lost foam castings to solve the problems in the background art.

[0005] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0006] The present application provides a device for preventing distortion of long strip-shaped lost foam castings, which comprises a fixed base, a model arranged on the top of the fixed base, a support assembly arranged at the bottom of the model for stabilizing the model, a plurality of sliding grooves arranged on the surface of the fixed base and penetrating through the fixed base, the sliding grooves being evenly distributed along the length direction of the fixed base, a plurality of first guide grooves arranged at the bottom of the fixed base for facilitating movement of the support assembly, the first guide grooves being distributed on both sides of the sliding grooves and symmetrically distributed along the axis of the sliding grooves, a limiting groove arranged on both sides of the groove wall of the sliding groove for stabilizing the support assembly, a plurality of top seats fixedly connected to both sides of the bottom of the model for contacting the support assembly, and a plurality of installation sleeves arranged on the support assembly.

[0007] Preferably, the bottom end of the mounting sleeve is sleeved with a first fixing plate for stabilizing itself, the bottom of the first fixing plate is in sliding connection with the surface of the fixed base, the inner wall of the top end of the mounting sleeve is provided with an internal thread for fixing the telescopic rod, a threaded hole is formed in one side of the mounting sleeve, and a bolt is inserted into the threaded hole to fix the telescopic rod.

[0008] Preferably, the threaded hole is in communication with the mounting sleeve, the telescopic rod is arranged in the mounting sleeve, the bottom of the telescopic rod is fixedly connected with a threaded rod matched with the internal thread, the telescopic rod is in threaded connection with the mounting sleeve through the threaded rod at the bottom, and one end of the bolt extending into the mounting sleeve is in threaded connection with the mounting sleeve through the threaded hole formed in one side of the mounting sleeve.

[0009] Preferably, one end of the bolt extending into the mounting sleeve is in close contact with the threaded rod at the bottom of the telescopic rod, the top of the telescopic rod is fixedly connected with a supporting block for supporting the model, a groove for contacting the top seat is formed in the upper end surface of the supporting block, the upper end surface of the supporting block is in close contact with the lower end surface of the top seat, and a plurality of supporting blocks are uniformly distributed along the edges of the model.

[0010] Preferably, the bottom of the mounting sleeve is sleeved with a supporting rod for stabilizing itself, the mounting sleeve is fixedly connected with the supporting rod, and one end of the supporting rod away from the mounting sleeve extends through the sliding groove to the bottom of the fixed base.

[0011] Preferably, the bottom of the supporting rod is fixedly connected with limiting blocks for contacting the fixed base on both sides, the limiting blocks are symmetrically distributed along the axis of the supporting rod, and the top of the limiting blocks is in sliding connection with the bottom surface of the fixed base.

[0012] Preferably, the surface of the supporting rod is in sliding connection with the groove wall of the sliding groove, a fixed ring groove is formed in the surface of the supporting rod, a plurality of second guide grooves for preventing the inner ring of the rotating bearing from rotating are formed in the inner wall of the fixed ring groove, the plurality of second guide grooves are uniformly distributed around the axis of the supporting rod, the rotating bearing is sleeved in the fixed ring groove, the inner ring wall of the rotating bearing is in sliding connection with the groove wall of the fixed ring groove, the inner ring wall of the rotating bearing is fixedly connected with a plurality of guide columns matched with the second guide grooves, the guide columns are in sliding connection with the groove wall of the second guide grooves, and the outer ring wall of the rotating bearing is in movable connection with the groove wall of the first guide groove.

[0013] Preferably, the limiting block top is provided with an installation groove, the installation groove is used for fixing the telescopic spring, the bottom of the telescopic spring is in contact with the bottom of the installation groove, the top of the telescopic spring is provided with a movement column, the movement column is used for installing the second fixed plate, the movement column is slidably connected with the groove wall of the installation groove, the two sides of the top of the movement column are fixedly connected with two second fixed plates, the two second fixed plates are symmetrically distributed along the axis of the movement column, the end faces of the two second fixed plates close to each other are fixedly connected with a fixing rod used for installing a guide wheel, the guide wheel is sleeved on the surface of the fixing rod and is rotatably connected with the fixing rod, and the upper end face of the guide wheel is in contact with the bottom of the first guide groove and is rotatably connected with the groove wall of the first guide groove.

[0014] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0015] The support block is attached to the left and right sides and the bottom surface of the lost foam model, the installation sleeve and the telescopic rod are arranged to change the position thereof, the telescopic rod and the support block are installed at the positions where the model needs to be placed, the support blocks are placed at the bottom and the two sides of the model, the position of the installation sleeve is adjusted according to the size requirement of the casting, the support blocks on the two sides and the bottom are attached to the two side surfaces and the bottom of the lost foam model, the recesses of the support blocks are used for clamping the top seat of the model, the model is accurately fixed on the tooling, the model deformation is avoided, the problem that the model is not shaped and corrected in the prior art and the modeling quality is affected is solved, the model and the tooling are shaped together after the model is corrected, the weight extrusion deformation caused by the molding sand is effectively reduced, and the quality of the casting is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of this description, are used to provide a further understanding of the application. The illustrative embodiments of the application and their description serve to explain the application. They should not be considered as limiting the application.

[0017] Figure 1 is a schematic diagram of the overall structure of the application;

[0018] Figure 2 is a schematic diagram of the overall structure of the application; Figure 1 is an enlarged structure schematic diagram of A in the application;

[0019] Figure 3 is a schematic diagram of the support block and model assembly structure of the application;

[0020] Figure 4 is a schematic diagram of the support assembly structure of the application;

[0021] Figure 5 is a schematic diagram of the bottom structure of the fixed base of the application;

[0022] Figure 6 is the schematic view of the enlarged structure at B in the Figure 5

[0023] Figure 7 is the schematic view of the assembly structure of the mounting sleeve and the telescopic rod of the present application;

[0024] Figure 8 is the schematic view of the enlarged structure at C in the Figure 7

[0025] Figure 9 is the schematic view of the enlarged structure at D in the Figure 7

[0026] Figure 10 is the sectional view of the internal structure of the mounting sleeve of the present application.

[0027] In the drawings:

[0028] 1, fixed base; 11, sliding groove; 12, first guide groove; 13, limiting groove; 2, model; 21, top seat; 3, support assembly; 31, mounting sleeve; 311, first fixed plate; 312, internal thread; 313, threaded hole; 32, telescopic rod; 321, threaded rod; 322, support block; 33, bolt; 34, support rod; 341, limiting block; 35, fixed ring groove; 351, second guide groove; 352, rotating bearing; 353, guide column; 36, mounting groove; 361, telescopic spring; 362, moving column; 363, second fixed plate; 364, fixed rod; 365, guide wheel. DETAILED DESCRIPTION

[0029] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-10 , the present application provides a tool for preventing distortion of an elongated strip-shaped lost foam casting, comprising a fixed base 1, please refer to Figure 1 , a model 2 is arranged on the top of the fixed base 1, and a support assembly 3 for stabilizing the model 2 is arranged at the bottom of the model 2, the support assembly 3 can adjust its position and height to tightly fit with the model 2.

[0031] In order to effectively and stably fix the long strip-shaped model 2, please refer to Figure 2 , Figure 3 ​​​、 Figure 4 And Figure 10 As shown in the fixed base 1 surface is provided with a plurality of through the sliding groove 11, a plurality of sliding groove 11 along the length of the fixed base 1 evenly distributed, the fixed base 1 bottom is provided with a plurality of first guide groove 12 to facilitate the movement of the support assembly 3, a plurality of first guide groove 12 is distributed on both sides of the plurality of sliding groove 11, a plurality of first guide groove 12 along the axis of symmetry of the sliding groove 11 distribution, a plurality of sliding groove 11 groove wall on both sides are provided with a limiting groove 13 for stable support assembly 3, the model 2 bottom two sides are fixedly connected with a plurality of top seat 21 for contact with the support assembly 3, the support assembly 3 includes a plurality of mounting sleeve 31, the mounting sleeve 31 is provided with telescopic rod 32 and support rod 34, the mounting sleeve 31 bottom end outer surface is sleeved with a first fixed plate 311 for stabilizing itself, the first fixed plate 311 bottom surface is in sliding connection with the surface of the fixed base 1, the mounting sleeve 31 top end inner wall is provided with an internal thread 312 for fixing the telescopic rod 32, the mounting sleeve 31 side is provided with a threaded hole 313, the threaded hole 313 is inserted into the bolt 33 to fix the telescopic rod 32, the threaded hole 313 is arranged on the upper end of the mounting sleeve 31, the threaded hole 313 is in communication with the mounting sleeve 31, the telescopic rod 32 is arranged in the mounting sleeve 31, the bottom of the telescopic rod 32 is fixedly connected with a threaded rod 321 matched with the internal thread 312, the telescopic rod 32 is threadedly connected with the mounting sleeve 31 through the threaded rod 321 at the bottom, the end of the bolt 33 extending in the mounting sleeve 31 is threadedly connected with the mounting sleeve 31 through the threaded hole 313 provided on one side of the mounting sleeve 31, the end of the bolt 33 extending in the mounting sleeve 31 is in close contact with the threaded rod 321 at the bottom of the telescopic rod 32, the top of the telescopic rod 32 is fixedly connected with a support block 322 for supporting the model 2, the support block 322 upper end surface is provided with a groove for contacting the top seat 21, the support block 322 upper end surface is in close contact with the lower end surface of the top seat 21, a plurality of support blocks 322 are evenly distributed along the edge of the model 2, providing an elongated strip-shaped lost foam casting distortion tool, provided with mounting sleeve 31 and telescopic rod 32, the mounting sleeve 31 is hollow, the telescopic rod 32 is inserted into one end of the mounting sleeve 31 and is threadedly connected, the other end of the mounting sleeve 31 is connected with the support rod 34, the mounting rod is provided with a limiting block 341 on both sides, the top of the telescopic rod 32 is fixedly connected with a support block 322, when producing an elongated part, according to the customer's drawing, the size is measured by selecting points on the corresponding model 2, the support rod 34 is installed at the corresponding position, the size is adjusted to fit on the model 2, after installation, the model 2 deformation is effectively controlled;

[0032] For easy movement and adjustment of the support assembly 3, please refer to Figure 7 、 Figure 8 And Figure 9As shown, the bottom of the mounting sleeve 31 is sleeved with a support rod 34 for stabilizing itself, the mounting sleeve 31 is fixedly connected with the support rod 34, one end of the support rod 34 away from the mounting sleeve 31 extends through the sliding groove 11 to the bottom of the fixed base 1, the bottom of the support rod 34 is fixedly connected with limiting blocks 341 for contacting the fixed base 1, the limiting blocks 341 are symmetrically distributed along the axis of the support rod 34, the top of the limiting blocks 341 is slidably connected with the bottom surface of the fixed base 1, the surface of the support rod 34 is slidably connected with the groove wall of the sliding groove 11, a fixed ring groove 35 is arranged on the surface of the support rod 34, a plurality of second guide grooves 351 for preventing the inner ring of the rotating bearing 352 from rotating are arranged on the inner wall of the fixed ring groove 35, the second guide grooves 351 are uniformly distributed around the axis of the support rod 34, the rotating bearing 352 is sleeved in the fixed ring groove 35, the inner wall of the rotating bearing 352 is slidably connected with the groove wall of the fixed ring groove 35, a plurality of guide columns 353 matched with the second guide grooves 351 are fixedly connected with the inner wall of the rotating bearing 352, the guide columns 353 are slidably connected with the groove wall of the second guide grooves 351, the outer wall of the rotating bearing 352 is movably connected with the groove wall of the first guide groove 12, an installation groove 36 is arranged on the top of the limiting block 341, the installation groove 36 is used for fixing a telescopic spring 361, the bottom of the telescopic spring 361 is in contact with the groove bottom of the installation groove 36, a moving column 362 is arranged on the top of the telescopic spring 361, the moving column 362 is used for installing a second fixed plate 363, the moving column 362 is slidably connected with the groove wall of the installation groove 36 around, the top of the moving column 362 is fixedly connected with two second fixed plates 363, the second fixed plates 363 are symmetrically distributed along the axis of the moving column 362, a fixed rod 364 used for installing a guide wheel 365 is fixedly connected with the end face of the second fixed plate 363 close to each other, the guide wheel 365 is sleeved on the surface of the fixed rod 364 and is rotatably connected with the fixed rod 364, the upper end face of the guide wheel 365 is in contact with the groove bottom of the first guide groove 12 and is rotatably connected with the groove wall of the first guide groove 12, when the mounting sleeve 31 is pushed, the guide wheels 365 on both sides of the bottom of the support rod 34 are always in contact with the bottom plate surface of the fixed base 1, the guide wheels 365 slide in the first guide groove 12 of the fixed base 1, at the same time, the contact surface of the support rod 34 and the sliding groove 11 is provided with the rotating bearing 352, the outer ring of the rotating bearing 352 simultaneously slides in the sliding groove 11, the friction generated in the process of moving the supporting assembly 3 is reduced, the position of the supporting part is facilitated to be adjusted, the supporting part is facilitated to be attached to the model 2, and the model 2 is stabilized.

[0033] Working principle

[0034] In actual use, when the mounting sleeve 31 is pushed, the guide wheels 365 on both sides of the bottom support rod 34 are in contact with the bottom plate surface of the fixed base 1 all the time, the guide wheels 365 slide in the first guide groove 12 of the fixed base 1, and the contact surface of the support rod 34 and the sliding groove 11 is provided with a rotating bearing 352, the outer ring of the rotating bearing 352 slides in the sliding groove 11 at the same time, the friction generated in the movement of the support assembly 3 is reduced, the position of the support member is adjusted, the support member is attached to the model 2, the long strip-shaped model 2 is effectively fixed stably, and the elongated strip-shaped lost foam casting distortion tool is provided with the mounting sleeve 31 and the telescopic rod 32, the mounting sleeve 31 is a hollow structure, the telescopic rod 32 is inserted into one end of the mounting sleeve 31 and is screwed, the other end of the mounting sleeve 31 is connected with the support rod 34, the mounting rod is provided with the limiting block 341 on both sides, the top of the telescopic rod 32 is fixedly connected with the support block 322, when the elongated part is produced, the size is measured according to the drawings provided by the customer and the points selected on the corresponding model 2, the support assembly 2 is installed at the corresponding position, the size is adjusted to be attached to the model 2, the support block 322 at the top of the telescopic rod 32 is tightly attached to the model 2, and the model 2 is effectively controlled after installation.

[0035] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An apparatus for preventing distortion of an elongated strip-shaped lost foam casting, characterized by, The utility model provides a fixed base (1), the fixed base (1) top is provided with model (2), model (2) bottom is provided with the support assembly (3) for stabilizing itself, the fixed base (1) surface is opened with multiple slide grooves (11) through itself, multiple slide grooves (11) evenly distribute along the length direction of fixed base (1), the fixed base (1) bottom is opened with the first guide groove (12) for the movement of support assembly (3), multiple first guide grooves (12) are distributed in both sides of multiple slide grooves (11), multiple first guide grooves (12) are distributed along the axis of symmetry of slide groove (11), multiple slide grooves (11) groove wall both sides are opened with the limiting slot (13) for stabilizing support assembly (3), model (2) bottom both sides are fixedly connected with multiple top seats (21) for contacting with support assembly (3), the support assembly (3) includes multiple installation sleeves (31), the installation sleeve (31) is installed with telescopic rod (32) and support rod (34), the installation sleeve (31) is arranged on multiple slide grooves (11); The installation sleeve (31) bottom end outer surface is sleeved with the first fixed plate (311) for stabilizing itself, the first fixed plate (311) bottom is slidably connected with the surface of fixed base (1), the inner thread (312) for fixing telescopic rod (32) is opened in the inner wall of installation sleeve (31) top end, the threaded hole (313) is opened in one side of installation sleeve (31), the bolt (33) is inserted in threaded hole (313) to fix telescopic rod (32), the threaded hole (313) is arranged on the upper end of installation sleeve (31); The threaded hole (313) is communicated with the installation sleeve (31), the telescopic rod (32) is arranged in the installation sleeve (31), the screw rod (321) matched with the inner thread (312) is fixedly connected with the bottom of telescopic rod (32), the telescopic rod (32) is screwed with the installation sleeve (31) through the screw rod (321) at the bottom, one end of the bolt (33) extending in the installation sleeve (31) is screwed with the installation sleeve (31) through the threaded hole (313) opened in one side of installation sleeve (31); The output end of bolt (33) is in close contact with the screw rod (321) at the bottom of telescopic rod (32), the support block (322) for supporting model (2) is fixedly connected with the top of telescopic rod (32), the recess for contacting top seat (21) is opened in the upper end surface of support block (322), the upper end surface of support block (322) is in close contact with the lower end surface of top seat (21), multiple support blocks (322) evenly distribute along the edge of model (2).

2. The device according to claim 1, wherein The installation sleeve (31) bottom is sleeved with the support rod (34) for stabilizing itself, the installation sleeve (31) is fixedly connected with the support rod (34), the support rod (34) one end away from the installation sleeve (31) penetrates slide groove (11) and extends to the bottom of fixed base (1).

3. The device according to claim 2, wherein The support rod (34) bottom two sides are fixedly connected with the limiting block (341) for contacting with the fixed base (1), both sides of the limiting block (341) are symmetrically distributed along the support rod (34) axis, and the limiting block (341) top is in sliding connection with the fixed base (1) bottom surface.

4. The device according to claim 3, wherein The support rod (34) surface is in sliding connection with the sliding groove (11) groove wall, the support rod (34) surface is provided with the fixed ring groove (35), a plurality of second guide grooves (351) for preventing the inner ring of the rotating bearing (352) from rotating are formed in the inner wall of the fixed ring groove (35), a plurality of the second guide grooves (351) are uniformly distributed around the support rod (34) axis, the rotating bearing (352) is sleeved in the fixed ring groove (35), the rotating bearing (352) inner ring wall is in sliding connection with the fixed ring groove (35) groove wall, a plurality of guide columns (353) matched with the second guide grooves (351) are fixedly connected to the rotating bearing (352) inner ring wall, the guide column (353) is in sliding connection with the second guide groove (351) groove wall, and the rotating bearing (352) outer ring wall is in movable connection with the first guide groove (12) groove wall.

5. The device according to claim 3, wherein The limiting block (341) top is provided with the mounting groove (36), the mounting groove (36) is used for fixing the telescopic spring (361), the telescopic spring (361) bottom is in contact with the mounting groove (36) groove bottom, the telescopic spring (361) top is provided with the movement column (362), the movement column (362) is used for installing the second fixed plate (363), the movement column (362) periphery is in sliding connection with the mounting groove (36) groove wall, the movement column (362) top two sides are fixedly connected with two second fixed plates (363), and two the second fixed plates (363) are symmetrically distributed along the movement column (362) axis, the second fixed plate (363) end face close to each other is fixedly connected with the fixed rod (364) for installing the guide wheel (365), the guide wheel (365) is sleeved on the surface of the fixed rod (364) and is in rotary connection with the fixed rod (364), and the guide wheel (365) upper end face is in contact with the first guide groove (12) groove bottom and is in rotary connection with the first guide groove (12) groove wall.

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