Press iron placing tool

Abstract

A weight placing tool comprises a placing frame, a first supporting base and a second supporting base, the placing frame comprises a guide rail and a placing face used for placing a weight, and the guide rail and the placing face both extend in the first direction; the first supporting seat is connected to one end, in the first direction, of the placing frame, and a first supporting surface is arranged on the first supporting seat; the second supporting seat is movably arranged on the guide rail, a second supporting face is arranged on the second supporting seat, and the second supporting seat can move in the first direction so as to adjust the distance between the first supporting face and the second supporting face. In the device, the placing surface on the placing rack is used for placing the weight, and the first supporting surface on the first supporting seat and the second supporting surface on the second supporting seat are used for being in contact with the sand box cover, so that the weight is prevented from being in direct contact with the sand box cover, the stress point of the weight on the sand box cover is located on the first supporting seat and the second supporting seat, and a sand mold in the sand box can be avoided; and the risks of sand mold cracking and casting sand inclusion caused by placement of the weight are reduced.

Description

Technical Field

[0001] This application relates to the field of tooling equipment technology, specifically to a tooling for placing iron pressure plates. Background Technology

[0002] Ductile iron is a high-strength cast iron material developed in the 1950s. Its comprehensive properties are close to those of steel. For parts requiring high strength, toughness, and wear resistance, ductile iron has rapidly become the second most important cast iron material after gray cast iron. Ductile iron is produced by spheroidizing and inoculating to obtain spheroidal graphite, effectively improving the mechanical properties of cast iron, especially its plasticity and toughness, thus achieving strength even higher than carbon steel. During the casting process of ductile iron, a pressure iron is used to press the sand mold (i.e., a "pressure compaction" process) to solve problems such as deformation and cracking caused by buoyancy, expansion force, or mechanical impact of the molten metal during pouring, thereby ensuring the dimensional accuracy and surface quality of the casting.

[0003] In related technologies, placing the pressure iron directly on the sand box cover will cause uneven stress on the sand mold, which will lead to cracking of the sand mold and sand inclusion in the casting. Utility Model Content

[0004] The purpose of this application is to provide a pressure iron placement fixture to solve the problems of uneven stress on sand molds and easy cracking of sand molds.

[0005] To achieve the objectives of this application, the following technical solution is provided:

[0006] Firstly, this application provides a fixture for placing a pressure iron, comprising:

[0007] A placement rack includes a guide rail and a placement surface for placing a pressure iron, both of which extend along a first direction;

[0008] A first support base is connected to one end of the placement frame in the first direction, and a first support surface is provided on the first support base;

[0009] The second support is movably mounted on the guide rail. The second support has a second support surface and can move along the first direction to adjust the distance between the first support surface and the second support surface.

[0010] In one embodiment, the second support base is provided with a first clamping portion and a second clamping portion at intervals, and a first clamping space is formed between the first clamping base and the second clamping base, and the guide rail passes through the first clamping space.

[0011] In one embodiment, a first rolling element is rotatably connected to the first clamping part, and a second rolling element is rotatably connected to the second clamping part. The first rolling element and the second rolling element respectively abut against the two ends of the guide rail along a second direction, and the first direction intersects the second direction.

[0012] In one embodiment, the placement surface and the first support surface are spaced apart in a third direction, and the placement surface and the second support surface are spaced apart in a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0013] In the third direction, the guide rail is disposed between the placement surface and the second support surface.

[0014] In one embodiment, the pressure iron placement fixture further includes a third support base, which is connected to the guide rail and has a third support surface.

[0015] In the first direction, the third support is disposed between the first support and the second support.

[0016] In one embodiment, in the third direction, the distance between the placement surface and the first support surface is equal to the distance between the placement surface and the second support surface, and the distance between the placement surface and the third support surface is less than the distance between the placement surface and the first support surface.

[0017] In one embodiment, the area of ​​the first support surface is greater than the area of ​​the second support surface, and the area of ​​the second support surface is greater than the area of ​​the third support surface.

[0018] In one embodiment, a third clamping part and a fourth clamping part are provided at intervals on the third support base, and a second clamping space is formed between the third clamping base and the fourth clamping base, and the guide rail passes through the second clamping space;

[0019] A third rolling element is rotatably connected to the third clamping part, and a fourth rolling element is rotatably connected to the fourth clamping part. The third rolling element and the fourth rolling element respectively abut against the two ends of the guide rail along the second direction.

[0020] In one embodiment, multiple third support seats are provided, and in the first direction, the multiple third support seats are connected to the guide rail at intervals.

[0021] In one embodiment, the pressure iron placement fixture further includes a pad block, the pad block having a bottom surface and an inclined surface, the inclined surface abutting against the third support surface;

[0022] In the second direction, the distance between the bottom surface and the inclined surface gradually increases in the third direction.

[0023] Compared with the prior art, this application has at least the following beneficial effects:

[0024] 1. In this application, the pressure iron placement fixture includes a placement frame, a first support base, and a second support base. The placement surface on the placement frame is used to place the pressure iron, and the first support surface on the first support base and the second support surface on the second support base are used to contact the sand box cover, thereby avoiding direct contact between the pressure iron and the sand box cover. That is, through the contact between the first support base and the second support base and the sand box cover, the stress point of the pressure iron on the sand box cover can be located at the first support base and the second support base, which can avoid the sand mold in the sand box and reduce the risk of sand mold cracking and casting sand inclusion caused by the placement of the pressure iron.

[0025] 2. In this application, the placement rack is provided with a guide rail extending along the first direction. The guide rail serves as the moving track of the second support base to adjust the distance between the first support surface and the second support surface, thereby adjusting the support distance and adapting to sand boxes or sand molds of different sizes.

[0026] 3. In this application, the iron placement fixture also includes a third support seat set on the guide rail, and the third support seat is located between the first support seat and the second support seat, which can realize the middle support of the placement frame. The third support seat can share the middle pressure of the placement frame to provide auxiliary support for the placement frame. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a perspective view of a pressure iron placement fixture according to one embodiment of this application;

[0029] Figure 2 This is a front view of a pressure iron placement fixture according to one embodiment of this application;

[0030] Figure 3 This is a perspective view of a second support base according to one embodiment of this application;

[0031] Figure 4 This is a perspective view of a third support base according to one embodiment of this application;

[0032] Figure 5 This is a perspective view of a pad block according to one embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100, Placement rack; 110, Guide rail; 120, Placement surface; 130, First lifting lug; 140, Second lifting lug; 200, First support base; 210, First support surface; 300, Second support base; 310, Second support surface; 320, First clamping part; 321, First rolling element; 330, Second clamping part; 331, Second rolling element; 340, First clamping space; 400, Third support base; 410, Third support surface; 420, Third clamping part; 421, Third rolling element; 430, Fourth clamping part; 431, Fourth rolling element; 440, Second clamping space; 500, Pad; 510, Bottom surface; 520, Inclined surface; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0035] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0036] refer to Figure 1 and Figure 2 This application provides a fixture for placing iron weights, including a placement rack 100, a first support base 200, and a second support base 300.

[0037] The placement rack 100 serves as the placement part for the pressure iron, providing support for it. The placement rack 100 includes a guide rail 110 and a placement surface 120 for placing the pressure iron, both extending along a first direction X. The placement rack 100 may include a crossbeam and a placement plate. The crossbeam and placement plate are welded together, or the placement plate is bolted to the crossbeam. The placement surface 120 is the upper surface of the placement plate. The guide rail 110 is formed on the crossbeam and is located below the placement surface 120.

[0038] Optionally, in the first direction X, the two ends of the placement frame 100 are respectively provided with first lifting lugs 130, and the middle part of the placement frame 100 is provided with second lifting lugs 140. The first lifting lugs 130 and the second lifting lugs 140 facilitate the overall transportation and installation of the placement frame 100 or the pressure iron placement fixture.

[0039] The guide rail 110 extends along the first direction X, meaning the guide rail 110 is a straight track. The placement surface 120 extends along the first direction X to provide multi-point support for the pressure iron in the first direction X.

[0040] A first support base 200 is connected to one end of the placement rack 100 in the first direction X. The first support base 200 can be fixed to one end of the placement rack 100 by welding or bolting. The first support base 200 is provided with a first support surface 210, which is made of a special wear-resistant material, such as hard alloy, with a hardness of HRC60 or higher, capable of withstanding the pressure and friction generated by the pressure iron during long-term placement. The shape of the first support surface 210 can be customized according to the surface shape of the sand box cover, for example, designed as an arc or a plane that matches the surface of the sand box cover, to improve the stability of the support.

[0041] The first support 200 is also equipped with reinforcing ribs, which enhances the strength and rigidity of the first support 200 and prevents deformation when subjected to greater pressure.

[0042] The second support base 300 is movably mounted on the guide rail 110. The second support base 300 is provided with a second support surface 310. The second support base 300 can move along the first direction X to adjust the distance 'a' between the first support surface 210 and the second support surface 310. The second support base 300 may include a base and a support portion. The second support surface 310 is disposed at the bottom of the base, and the support portion cooperates with the guide rail 110.

[0043] The second support surface 310 is also made of wear-resistant material, with the same material and hardness as the first support surface 210. The shape of the second support surface 310 can also be customized according to the surface shape of the sandbox cover, for example, designed as an arc or plane that matches the surface of the sandbox cover to improve the stability of the support.

[0044] In this application, a pressure iron is placed on the placement surface 120 of the placement rack 100. The first support surface 210 on the first support base 200 and the second support surface 310 on the second support base 300 are used to contact the sand box cover, thereby avoiding direct contact between the pressure iron and the sand box cover. That is, through the contact between the first support base 200 and the second support base 300 and the sand box cover, the stress point of the pressure iron on the sand box cover can be located at the first support base 200 and the second support base 300, which can avoid the sand mold inside the sand box and reduce the risk of sand mold cracking and casting sand inclusion caused by the placement of the pressure iron. The guide rail 110 serves as the moving track of the second support base 300 to adjust the distance between the first support surface 210 and the second support surface 310, thereby adjusting the support distance to adapt to sand boxes or sand molds of different sizes.

[0045] refer to Figure 1 , Figure 2 and Figure 3The second support 300 is provided with a first clamping part 320 and a second clamping part 330 spaced apart, forming a first clamping space 340 between the first clamping part and the second clamping part. The guide rail 110 passes through the first clamping space 340. The first clamping space 340 formed between the first clamping part 320 and the second clamping part 330 enables the second support 300 to clamp the guide rail 110, effectively reducing the shaking and vibration of the second support 300 when moving on the guide rail 110, improving the stability of movement, and ensuring the accuracy of the support position of the second support 300.

[0046] The height of the first clamping space 340 is slightly greater than the thickness of the guide rail 110 to ensure that the second support 300 can move smoothly on the guide rail 110. The width of the first clamping space 340 matches the width of the guide rail 110, with the error controlled within ±5mm, to ensure that the first clamping part 320 and the second clamping part 330 can stably clamp the guide rail 110.

[0047] A first rolling element 321 is rotatably connected to the first clamping part 320, and a second rolling element 331 is rotatably connected to the second clamping part 330. The first rolling element 321 and the second rolling element 331 respectively abut against the two ends of the guide rail 110 along the second direction Y, where the first direction X intersects the second direction Y. The first rolling element 321 and the second rolling element 331 abut against the two ends of the guide rail 110 along the second direction Y, converting the sliding friction between the second support seat 300 and the guide rail 110 into rolling friction, greatly reducing frictional resistance and enabling the second support seat 300 to move smoothly on the guide rail 110. Furthermore, the low coefficient of friction of the first rolling element 321 and the second rolling element 331 effectively reduces wear between the first clamping part 320 and the second clamping part 330 and the guide rail 110.

[0048] The first rolling element 321 can be a roller bearing, and the second rolling element 331 can be a roller bearing.

[0049] In one embodiment, the placement surface 120 and the first support surface 210 are spaced apart in the third direction Z, and the placement surface 120 and the second support surface 310 are spaced apart in the third direction Z, with the first direction X, the second direction Y and the third direction Z being perpendicular to each other; in the third direction Z, the guide rail 110 is disposed between the placement surface 120 and the second support surface 310.

[0050] In this embodiment of the application, the length direction of the pressure iron placement fixture is taken as the first direction X, the width direction of the pressure iron placement fixture is taken as the second direction Y, and the height direction of the pressure iron placement fixture is taken as the third direction Z.

[0051] The placement surface 120, the first support surface 210, and the second support surface 310 are spaced apart in the third direction Z. The guide rail 110 is positioned between the placement surface 120 and the first support surface 210. In other words, the placement surface 120, the guide rail 110, and the first support surface 210 are arranged sequentially in the height direction of the pressure iron placement fixture, making the overall structure of the pressure iron placement fixture more compact. Simultaneously, when the second support base 300 moves along the guide rail 110, it can avoid interfering with the pressure iron on the placement surface 120.

[0052] refer to Figure 2 , Figure 4 and Figure 5 The pressure iron placement fixture also includes a third support base 400, which is connected to the guide rail 110 and has a third support surface 410. In the first direction X, the third support base 400 is positioned between the first support base 200 and the second support base 300. The third support base 400 provides central support to the placement frame 100 and can share the central pressure of the placement frame 100, thus providing auxiliary support. By having the first support base 200, the third support base 400, and the second support base 300 jointly provide support for the pressure iron, compared to relying solely on the first support base 200 and the second support base 300, the number of support points increases, and the support distribution becomes more uniform and reasonable.

[0053] The distance between the placement surface 120 and the first support surface 210 is equal to the distance between the placement surface 120 and the second support surface 310, so that when the pressure iron is placed, the initial support force on both sides (corresponding to the positions of the first support surface 210 and the second support surface 310) is relatively balanced, providing a stable initial placement reference for the pressure iron.

[0054] The distance between the placement surface 120 and the third support surface 410 is less than the distance between the placement surface 120 and the first support surface 210, that is, in the third direction Z, the first support surface 210 and the third support surface 410 have a distance b. When the pressure iron placement fixture is placed on the sand box cover, the third support surface 410 does not directly contact the surface of the sand box cover, but abuts against the sand box cover through the pad 500.

[0055] Specifically, the pad 500 includes a bottom surface 510 and an inclined surface 520. The bottom surface is used to contact the surface of the sand box cover, and the inclined surface 520 abuts against the third support surface 410. In the second direction Y, the distance between the bottom surface 510 and the inclined surface 520 gradually increases in the third direction Z. After the first support surface 210 and the second support surface 310 are supported on the surface of the sand box cover, the pad 500 is placed at the bottom of the third support base 400 to pre-tighten the third support base 400, so that the third support base 400 indirectly contacts the sand box cover, thereby providing auxiliary support for the middle part of the placement rack 100.

[0056] In one embodiment, the area of ​​the first support surface 210 is larger than the area of ​​the second support surface 310, and the area of ​​the second support surface 310 is larger than the area of ​​the third support surface 410. The first support surface 210 has the largest area; as one of the main support areas when the pressure iron is placed, its larger area can disperse the force applied by the pressure iron, reduce local pressure, and ensure stable and reliable support for the pressure iron. The second support surface 310 has the next largest area; its relatively smaller area, while still providing effective support for the pressure iron, reduces the contact area with the sand box cover, facilitating the adjustment of the position of the second support base 300 on the sand box cover. The third support surface 410 has the smallest area and mainly serves as auxiliary support and fine-tuning. Its smaller area allows it to more flexibly adapt to the shape of the sand box cover during placement, optimizing the force distribution on the pressure iron and improving the stability of the pressure iron placement.

[0057] The third support 400 is provided with a third clamping part 420 and a fourth clamping part 430 spaced apart, forming a second clamping space 440 between the third and fourth clamping parts. The guide rail 110 passes through the second clamping space 440. The third clamping part 420 and the fourth clamping part 430 can be made of metal, possessing sufficient strength and rigidity to ensure that the third support 400 can be stably mounted on the guide rail 110. The dimensions of the second clamping space 440 match the dimensions of the guide rail 110, ensuring that the third support 400 can be stably fixed on the guide rail 110.

[0058] A third rolling element 421 is rotatably connected to the third clamping part 420, and a fourth rolling element 431 is rotatably connected to the fourth clamping part 430. The third rolling element 421 and the fourth rolling element 431 respectively abut against the two ends of the guide rail 110 along the second direction Y. The third rolling element 421 and the fourth rolling element 431 can be in the form of bearings or rollers to reduce the friction between the third support 400 and the guide rail 110, so that the third support 400 can move more stably on the guide rail 110.

[0059] In one embodiment, multiple third support seats 400 are provided, and in the first direction X, the multiple third support seats 400 are connected to the guide rail 110 at intervals. The multiple third support seats 400 can provide more support points for the pressure iron, and the multiple third support seats 400 can be reasonably arranged according to the length and weight of the pressure iron to ensure that the pressure iron can be fully supported.

[0060] In use, first place the pressure iron on the placement surface 120. One end of the placement rack 100 is supported by the first support surface 210. Then, adjust the position of the second support base 300 so that the second support surface 310 supports the other end of the placement rack 100. The third support base 400 is located in the middle of the placement rack 100, and the third support surface 410 supports the placement rack 100 upwards to prevent it from sagging. If it is necessary to adjust the height of the third support surface 410, a shim 500 can be used. The inclined surface 520 of the shim 500 abuts against the third support surface 410. By adjusting the position of the shim 500, the height of the third support surface 410 is changed, so that the third support base 400 provides auxiliary support for the placement rack 100.

[0061] The pressure iron placement fixture provided in this application can adapt to pressure irons or sand boxes of different lengths and shapes, improving the stability and safety of pressure iron placement. At the same time, it can ensure that the pressure iron's stress points on the sand box cover are located at the first support seat 200, the second support seat 300, and the third support seat 400, thus avoiding the sand mold inside the sand box and reducing the risk of sand mold cracking and casting sand inclusion caused by pressure iron placement.

[0062] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0063] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A fixture for placing iron weights, characterized in that, include: A placement rack includes a guide rail and a placement surface for placing a pressure iron, both of which extend along a first direction; A first support base is connected to one end of the placement frame in the first direction, and a first support surface is provided on the first support base; The second support is movably mounted on the guide rail. The second support has a second support surface and can move along the first direction to adjust the distance between the first support surface and the second support surface.

2. The iron-pressing fixture according to claim 1, characterized in that, The second support base is provided with a first clamping part and a second clamping part at intervals, and a first clamping space is formed between the first clamping part and the second clamping part, and the guide rail passes through the first clamping space.

3. The iron-pressing fixture according to claim 2, characterized in that, A first rolling element is rotatably connected to the first clamping part, and a second rolling element is rotatably connected to the second clamping part. The first rolling element and the second rolling element respectively abut against the two ends of the guide rail along the second direction, and the first direction intersects the second direction.

4. The iron-pressing fixture according to claim 3, characterized in that, The placement surface and the first support surface are spaced apart in a third direction upwards, and the placement surface and the second support surface are spaced apart in a third direction upwards, with the first direction, the second direction, and the third direction being perpendicular to each other; In the third direction, the guide rail is disposed between the placement surface and the second support surface.

5. The iron-pressing fixture according to claim 4, characterized in that, The pressure iron placement fixture also includes a third support base, which is connected to the guide rail and has a third support surface. In the first direction, the third support is disposed between the first support and the second support.

6. The iron-pressing fixture according to claim 5, characterized in that, In the third direction, the distance between the placement surface and the first support surface is equal to the distance between the placement surface and the second support surface, and the distance between the placement surface and the third support surface is less than the distance between the placement surface and the first support surface.

7. The iron-pressing fixture according to claim 6, characterized in that, The area of ​​the first support surface is greater than the area of ​​the second support surface, and the area of ​​the second support surface is greater than the area of ​​the third support surface.

8. The iron-pressing fixture according to claim 5, characterized in that, The third support base is provided with a third clamping part and a fourth clamping part at intervals, and a second clamping space is formed between the third clamping part and the fourth clamping part. The guide rail passes through the second clamping space. A third rolling element is rotatably connected to the third clamping part, and a fourth rolling element is rotatably connected to the fourth clamping part. The third rolling element and the fourth rolling element respectively abut against the two ends of the guide rail along the second direction.

9. The iron-pressing fixture according to claim 5, characterized in that, Multiple third support seats are provided, and in the first direction, multiple third support seats are connected to the guide rail at intervals.

10. The iron-pressing fixture according to claim 6, characterized in that, The iron placement fixture also includes a pad block, which includes a bottom surface and an inclined surface, and the inclined surface abuts against the third support surface. In the second direction, the distance between the bottom surface and the inclined surface gradually increases in the third direction.

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