阅读说明：本技术 固定装置及铸造成型设备 (Fixing device and casting forming equipment ) 是由 王永波 邵冲 高仕山 朱小平 邢昌勇 马先鹏 许龙欢 于 2020-06-30 设计创作，主要内容包括：本发明提供了一种固定装置及铸造成型设备,用于将陶瓷滤网固定于成型模具中,涉及精密铸造技术领域,包括：固定构件；成型模具内设置有固定槽,固定构件设置于固定槽中,固定槽的内壁能够对固定构件产生挤压力,挤压力用于使固定构件产生形变,以使固定构件紧贴于陶瓷滤网。由于在成型模具的固定槽内设置固定构件,在注蜡的过程中,成型模具对固定构件具有挤压力,固定构件因挤压力发生形变紧贴在陶瓷滤网上,消除固定构件与陶瓷滤网之间的缝隙,缓解了现有技术中存在的滤网与模具之间存在间隙,影响后续铸件质量的技术问题,实现了避免在过滤网上产生蜡皮,提高铸件质量的技术效果。(The invention provides a fixing device and casting forming equipment, which are used for fixing a ceramic filter screen in a forming die, relate to the technical field of precision casting and comprise: a fixing member; the fixed groove is formed in the forming die, the fixing member is arranged in the fixed groove, the inner wall of the fixed groove can generate extrusion force on the fixing member, and the extrusion force is used for enabling the fixing member to deform so that the fixing member can be attached to the ceramic filter screen tightly. Because the fixing component is arranged in the fixing groove of the forming mold, the forming mold has extrusion force on the fixing component in the wax injection process, the fixing component is tightly attached to the ceramic filter screen due to the deformation of the extrusion force, the gap between the fixing component and the ceramic filter screen is eliminated, the technical problem that the gap exists between the filter screen and the mold in the prior art and the quality of a subsequent casting is influenced is solved, the wax skin is prevented from being generated on the filter screen, and the technical effect of improving the quality of the casting is achieved.)

1. A fixing device for fixing a ceramic filter screen (200) in a forming die (300), comprising: a fixing member (100);

the ceramic filter screen forming die is characterized in that fixing grooves are formed in the forming die (300), the fixing members (100) are arranged in the fixing grooves, the inner walls of the fixing grooves can generate extrusion force for the fixing members (100), and the extrusion force is used for enabling the fixing members (100) to deform so that the fixing members (100) are tightly attached to the ceramic filter screen (200).

2. A fixation device as claimed in claim 1,

the fixing member (100) includes an upper fixing member (110) and a lower fixing member (120);

forming die (300) including can enclosing establish and form last mould (310) and bed die (320) of fixed slot, go up mounting (110) set up in go up in mould (310), lower mounting (120) set up in bed die (320), go up mounting (110) with lower mounting (120) can enclose to establish and form and can press from both sides the fixed region of tightly ceramic filter screen (200).

3. A fixation device as claimed in claim 2,

the length edge of the ceramic filter screen (200) in the fixed area and the contact surface of the upper die (310) and the lower die (320) form an included angle.

4. A fixation device as claimed in claim 2,

the top end of the lower fixing member (120) extends out of the lower die (320) towards the upper fixing member (110).

5. A fixation device as claimed in claim 2,

the fixing member (100) further comprises a fixing base plate (130);

the fixing device is characterized in that a plurality of fixing columns (140) are arranged on the fixing bottom plate (130), fixing holes are formed in the upper fixing piece (110) and the lower fixing piece (120), and the fixing columns (140) extend into the fixing holes.

6. A fixation device as claimed in claim 5,

the diameter of the fixing column (140) is larger than that of the fixing hole.

7. A fixation device as claimed in claim 5,

the fixed bottom plate (130) has an inclination angle with the contact surface of the upper die (310) and the lower die (320).

8. A fixation device as claimed in claim 5,

the fixed base plate (130) comprises an upper base plate (131) and a lower base plate (132);

the upper fixing piece (110) is connected with the upper bottom plate (131), the lower fixing piece (120) is connected with the lower bottom plate (132), and the lower bottom plate (132) can be abutted to the ceramic filter screen (200).

9. A fixation device as claimed in claim 8,

be provided with arch (133) on lower plate (132), be provided with boss (321) on lower mould (320), ceramic filter screen (200) respectively with arch (133) with boss (321) butt.

10. A foundry moulding apparatus including a mounting apparatus as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of precision casting, in particular to a fixing device and casting forming equipment.

Background

In the precision casting production process, a ceramic filter screen is usually arranged on a main pouring gate, and the filter screen plays a role in filtering impurities such as oxides, slag and the like in molten metal, so that the qualification rate of castings is improved.

The conventional process method for arranging the ceramic filter screen on the pouring gate is to arrange the ceramic filter screen in a die of the pouring gate, then utilize a wax pressing machine to press wax materials into a die cavity of the die to obtain a wax pattern die of the pouring gate, the ceramic filter screen is a finished product and is influenced by the manufacturing process, the size precision of the ceramic filter screen is not high, and in order to ensure that all the filter screens can be arranged in the die, a gap of about 2mm can be formed between the filter screen and the die.

However, when wax is pressed, wax materials are filled in the gap, so that a wax skin of about 2mm is formed around the filter screen of the wax model of the finished pouring channel, the pouring channel in the state is dewaxed after the shell is manufactured, after the wax materials are removed, the gap between the filter screen and the shell is 2mm, the filter screen can shake left and right in the gap, the ceramic filter screen and the shell can collide to cause the shell to fall off, and the casting is subjected to defects of inclusion and the like.

Disclosure of Invention

The invention aims to provide a fixing device and casting forming equipment, which are used for relieving the technical problem that the quality of a subsequent casting is influenced by a gap between a filter screen and a mould in the prior art.

In a first aspect, the present invention provides a fixing device for fixing a ceramic filter screen in a forming mold, including: a fixing member;

the ceramic filter screen forming die is characterized in that a fixing groove is formed in the forming die, the fixing member is arranged in the fixing groove, the inner wall of the fixing groove can generate extrusion force on the fixing member, and the extrusion force is used for enabling the fixing member to deform so that the fixing member is tightly attached to the ceramic filter screen.

In an alternative embodiment of the method of the present invention,

the fixing member comprises an upper fixing piece and a lower fixing piece;

forming die establishes including enclosing the last mould and the bed die of formation the fixed slot, go up the mounting set up in go up in the mould, down the mounting set up in the bed die, go up the mounting with the bed die can enclose to establish and form and can press from both sides tightly the fixed area of ceramic filter screen.

In an alternative embodiment of the method of the present invention,

an included angle is formed between the length edge of the ceramic filter screen in the fixed area and the contact surface of the upper die and the lower die.

In an alternative embodiment of the method of the present invention,

the top end of the lower fixing piece extends out of the lower die towards the direction of the upper fixing piece.

In an alternative embodiment of the method of the present invention,

the fixing member further comprises a fixing bottom plate;

the fixing base plate is provided with a plurality of fixing columns, the upper fixing piece and the lower fixing piece are provided with fixing holes, and the fixing columns stretch into the fixing holes.

In an alternative embodiment of the method of the present invention,

the diameter of the fixing column is larger than that of the fixing hole.

In an alternative embodiment of the method of the present invention,

the fixed bottom plate and the contact surface of the upper die and the lower die have an inclined angle.

In an alternative embodiment of the method of the present invention,

the fixed bottom plate comprises an upper bottom plate and a lower bottom plate;

the upper fixing piece is connected with the upper base plate, the lower fixing piece is connected with the lower base plate, and the lower base plate can be abutted to the ceramic filter screen.

In an alternative embodiment of the method of the present invention,

the lower base plate is provided with a protrusion, the lower die is provided with a boss, and the ceramic filter screen is respectively abutted to the protrusion and the boss.

In a second aspect, the invention provides a casting and molding apparatus comprising the fixing device.

The invention provides a fixing device for fixing a ceramic filter screen in a forming die, which comprises: a fixing member; the fixed groove is formed in the forming die, the fixing member is arranged in the fixed groove, the inner wall of the fixed groove can generate extrusion force on the fixing member, and the extrusion force is used for enabling the fixing member to deform so that the fixing member can be attached to the ceramic filter screen tightly. Because the fixing component is arranged in the fixing groove of the forming mold, the forming mold has extrusion force on the fixing component in the wax injection process, the fixing component is tightly attached to the ceramic filter screen due to the deformation of the extrusion force, the gap between the fixing component and the ceramic filter screen is eliminated, the technical problem that the gap exists between the filter screen and the mold in the prior art and the quality of a subsequent casting is influenced is solved, the wax skin is prevented from being generated on the filter screen, and the technical effect of improving the quality of the casting is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic overall structure diagram of a fixing device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a fixture with an upper mold according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a fixing member of the fixing device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a lower mold and a lower fixing member in the fixing device according to the embodiment of the present invention.

Icon: 100-a stationary member; 110-an upper fixture; 120-lower fixture; 130-a fixed base plate; 131-an upper base plate; 132-a lower base plate; 133-projection; 140-fixed column; 200-ceramic filter screen; 300-forming a mold; 310-upper mould; 320-a lower die; 321-boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1 and fig. 2, the fixing device provided in this embodiment is used for fixing the ceramic filter screen 200 in the forming mold 300, and includes: a fixing member 100; the fixing groove is formed in the molding die 300, the fixing member 100 is disposed in the fixing groove, and an inner wall of the fixing groove can generate a pressing force to the fixing member 100, and the pressing force is used to deform the fixing member 100 so that the fixing member 100 is tightly attached to the ceramic filter screen 200.

Specifically, forming die 300 has the fixed slot under the state that closes of lid, fixed component 100 is installed in the fixed slot, ceramic filter screen 200 sets up in fixed component 100, fixed component 100 chooses flexible material for use, can produce elastic deformation, for example, silica gel material, when forming die 300 lid, the inner wall of fixed slot produces the extrusion to fixed component 100 in forming die 300, make fixed component 100 take place elastic deformation, and then make fixed component 100 hug closely on ceramic filter screen 200, fix ceramic filter screen 200 in the fixed slot, realize utilizing fixed component 100 to eliminate the technological effect in the gap between forming die 300 and the ceramic filter screen 200, effectively avoid wax material to form the wax skin at ceramic filter screen 200 lateral wall.

The fixing device provided in this embodiment is used for fixing the ceramic filter screen 200 in the forming mold 300, and includes: a fixing member 100; the fixing groove is formed in the molding die 300, the fixing member 100 is disposed in the fixing groove, and an inner wall of the fixing groove can generate a pressing force to the fixing member 100, and the pressing force is used to deform the fixing member 100 so that the fixing member 100 is tightly attached to the ceramic filter screen 200. Because the fixing member 100 is arranged in the fixing groove of the forming mold 300, in the process of wax injection, the forming mold 300 has extrusion force on the fixing member 100, the fixing member 100 is tightly attached to the ceramic filter screen 200 due to deformation of the extrusion force, gaps between the fixing member 100 and the ceramic filter screen 200 are eliminated, the technical problem that gaps exist between the filter screen and the mold and influence the quality of subsequent castings in the prior art is solved, wax skin is prevented from being generated on the filter screen, and the technical effect of improving the quality of the castings is achieved.

On the basis of the above embodiment, as shown in fig. 3, in an alternative implementation, the fixing member 100 in the fixing device provided in this embodiment includes an upper fixing member 110 and a lower fixing member 120; the forming mold 300 includes an upper mold 310 and a lower mold 320 that can enclose to form a fixing groove, the upper fixture 110 is disposed in the upper mold 310, the lower fixture 120 is disposed in the lower mold 320, and the upper fixture 110 and the lower fixture 120 can enclose to form a fixing area that can clamp the ceramic filter screen 200.

Specifically, the upper mold 310 and the lower mold 320 are respectively provided with a groove, a fixing groove is formed when the upper mold 310 and the lower mold 320 are covered, the upper fixing member 110 and the lower fixing member 120 are respectively arranged in the grooves of the upper mold 310 and the lower mold 320, when the upper mold 310 and the lower mold 320 are covered, the upper mold 310 and the lower mold 320 generate a pressing force on the upper fixing member 110 and the lower fixing member 120, the upper fixing member 110 is attached to the lower fixing member 120, and the upper fixing member 110 and the lower fixing member 120 press the ceramic filter screen 200, so that the upper fixing member 110 and the lower fixing member 120 are tightly attached to the ceramic filter screen 200, and a gap between the ceramic filter screen 200 and the forming mold 300 is avoided.

In an alternative embodiment, the length of the edge of the ceramic screen 200 in the attachment area is angled from the contact surface of the upper die 310 and the lower die 320.

Specifically, the included angle between the length edge of the ceramic filter screen 200 and the contact surface of the upper mold 310 and the lower mold 320 is 45 degrees, and the ceramic filter screen 200 is placed in the fixing groove in a manner of rotating for 45 degrees, i.e., the vertical direction of the forming mold 300 is the diagonal direction of the filter screen, and the placing manner can ensure that the filter screen is squeezed by the upper fixing piece 110 and the lower fixing piece 120 along the vertical direction.

In an alternative embodiment, the top end of the lower fixture 120 protrudes out of the lower mold 320 in a direction toward the upper fixture 110.

Specifically, under the condition that the upper mold 310 and the lower mold 320 are closed, the top end of the lower fixing member 120 extends out of the groove of the lower mold 320, so that the top surface of the lower fixing member 120 is higher than the top surface of the lower mold 320, and the upper surface of the lower fixing member 120 is higher than the lower mold 320 by about 0.5mm, so that when the upper mold 310 and the lower mold 320 are combined together, the upper fixing member 110 and the lower fixing member 120 are in a compressed state, and wax is prevented from being extruded out of a gap between the upper fixing member 110 and the lower fixing member 120 under the pressure.

According to the fixing device provided by the embodiment, the ceramic filter screen 200 is arranged in the fixing groove in the direction of 45 degrees, so that the ceramic filter screen 200 is better extruded by the upper fixing piece 110 and the lower fixing piece 120, a gap is prevented from being generated, and wax skin is prevented from being formed; since the top end of the lower fixture 120 extends out of the top surface of the lower mold 320, when the upper mold 310 and the lower mold 320 are closed, the upper fixture 110 can be tightly attached to the lower fixture 120, and the wax material is prevented from entering into the gap between the upper fixture 110 and the lower fixture 120.

On the basis of the above embodiment, in an alternative implementation manner, the fixing member 100 in the fixing device provided in this embodiment further includes a fixing bottom plate 130; the fixing base plate 130 is provided with a plurality of fixing posts 140, the upper fixing member 110 and the lower fixing member 120 are both provided with fixing holes, and the fixing posts 140 extend into the fixing holes.

Specifically, the fixing base plate 130 is disposed in the fixing groove, the fixing base plate 130 has a plurality of fixing posts 140, the upper fixing member 110 and the lower fixing member 120 are both provided with fixing holes corresponding to the fixing posts 140, and the upper fixing member 110 and the lower fixing member 120 are mounted on the fixing base plate 130 by the cooperation of the fixing posts 140 and the fixing holes.

In an alternative embodiment, the diameter of the fixing post 140 is greater than the diameter of the fixing hole.

Specifically, the diameter of the fixing column 140 is larger than the inner diameter of the fixing hole by 0.2-0.3mm, so that the fixing column 140 is in interference fit with the fixing hole, and the fixing column 140 and the fixing hole are firmly connected.

In an alternative embodiment, the stationary base plate 130 has an inclination angle with the contact surfaces of the upper mold 310 and the lower mold 320.

Specifically, the fixed base 130 has a slope of 3 degrees, and when the fixed base 130 is fitted in the fixing groove, the upper mold 310 and the lower mold 320 connected to the fixed base 130 are secured in a tight-packed state in the upper mold 310 and the lower mold 320 due to the slope.

In an alternative embodiment, the fixed base plate 130 includes an upper base plate 131 and a lower base plate 132; the upper holder 110 is connected to the upper plate 131, the lower holder 120 is connected to the lower plate 132, and the lower plate 132 can abut against the ceramic filter 200.

Specifically, the upper base plate 131 and the lower base plate 132 are both provided with fixing columns 140, the fixing columns 140 on the upper base plate 131 extend into fixing holes of the upper fixing member 110, the fixing columns 140 on the lower base plate 132 extend into fixing holes of the lower fixing member 120, and after the ceramic filter screen 200 is installed, the lower base plate 132 can abut against the ceramic filter screen 200 to limit the ceramic filter screen 200 on the lower base plate 132.

As shown in fig. 4, in order to prevent the ceramic filter screen 200 from shaking, in an alternative embodiment, a protrusion 133 is provided on the lower plate 132, a boss 321 is provided on the lower mold 320, and the ceramic filter screen 200 abuts against the protrusion 133 and the boss 321, respectively.

Specifically, the lower base plate 132 is provided with the protrusion 133, the lower die 320 is provided with the boss 321, the ceramic filter screen 200 is installed between the protrusion 133 and the boss 321, the protrusion 133 and the boss 321 are both abutted against the ceramic filter screen 200, the ceramic filter screen 200 is limited between the protrusion 133 and the boss 321 by the protrusion 133 and the boss 321, and the ceramic filter screen 200 is prevented from shaking.

The casting and forming equipment provided by the embodiment comprises a fixing device.

Since the technical effect of the casting and molding apparatus provided by this embodiment is the same as that of the fixing device, no further description is provided herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.