CN110508759B - U-shaped clamp for casting sand box - Google Patents
U-shaped clamp for casting sand box Download PDFInfo
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- CN110508759B CN110508759B CN201910930259.9A CN201910930259A CN110508759B CN 110508759 B CN110508759 B CN 110508759B CN 201910930259 A CN201910930259 A CN 201910930259A CN 110508759 B CN110508759 B CN 110508759B
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- connecting part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Catching Or Destruction (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to a U-shaped clamp for a casting sand box, which comprises a free handle, a spiral fastener, a fixed handle and a pin, wherein the free handle is fixedly connected with the fixed handle; the free shank includes a first connection portion and a second connection portion; one end of the first connecting part is vertically and fixedly connected with one end of the second connecting part; the fixing handle comprises a U-shaped groove, a fixing rod and a fixing platform; one end of the U-shaped groove is provided with a groove; the other end of the U-shaped groove is fixedly connected with one end of the fixed rod; the other end of the fixed rod is fixedly connected with the fixed platform; one end of the second connecting part of the free handle, which is close to the first connecting part, is movably connected with the U-shaped groove of the fixed handle through a pin; the other end of the second connecting part of the free handle is connected with a fixing rod of the fixed handle through a spiral shaft. The U-shaped clamp for the casting sand box has the advantages of simple manufacture, simple structure and simple and convenient operation, and can effectively improve the production efficiency; and prevent the sand box vibrations, avoid the die cavity coating to drop.
Description
Technical Field
The invention relates to the field of casting, in particular to a U-shaped clamp for a casting sand box.
Background
The conventional sand box fastening clamp comprises a wedge-shaped clamp, a swing-type box clamp, a bolt clamp and the like, and the wedge-shaped box clamp is not only complicated to manufacture, but also can be used only by a special sand box; the swing type box clamp is high in machining precision and short in service life; the bolt clamp is time consuming and labor consuming to operate.
The invention aims to overcome the defects and provide the small sand box clamp for casting, which is simple and convenient to operate and improves the production efficiency, so that the phenomenon that the cavity coating and the scattered sand fall off when the wedge iron is hit in the clamping process of the traditional U-shaped clamp is prevented. Causing defects such as sand inclusion, air holes and the like to the casting.
Disclosure of Invention
The invention aims to overcome the defects that the manufacturing is simple, the operation is simple and convenient, the efficiency of producing the U-shaped sand box clamp for casting is improved, the sand box is prevented from vibrating, and the defects that cavity coating and loose sand fall off, sand inclusion and air holes are caused to castings when the traditional U-shaped clamp strikes a wedge iron in the clamping process are avoided. The invention particularly relates to a box clamping device for aligning a flaskless box with a box lug in a casting production box assembling process and a use method thereof.
In order to solve the above disadvantages, the invention adopts the technical scheme that:
a U-shaped clamp for a casting sand box comprises a free handle, a spiral fastener, a fixed handle and a pin; the free shank includes a first connection portion and a second connection portion; one end of the first connecting part is vertically and fixedly connected with one end of the second connecting part; the fixing handle comprises a U-shaped groove, a fixing rod and a fixing platform; one end of the U-shaped groove is provided with a groove; the other end of the U-shaped groove is fixedly connected with one end of the fixed rod; the other end of the fixed rod is fixedly connected with the fixed platform; one end of the second connecting part of the free handle, which is close to the first connecting part, is movably connected with the U-shaped groove of the fixed handle through a pin; the other end of the second connecting part of the free handle is connected with the fixing rod of the fixing handle through a spiral fastener.
Further, the second connecting portion includes a first pin hole and a first shaft hole; a horizontal plane formed by connecting the first connecting part and the second connecting part is provided with a first pin hole close to the first connecting part; a first shaft hole is formed in one end, far away from the first connecting part, of the second connecting part; the first shaft hole is axially vertical to the first pin hole.
Furthermore, the number of the first pin holes is at least one; the number of the first shaft holes is at least one.
Furthermore, a second pin hole is formed in one end, far away from the fixing rod, of the U-shaped groove on the horizontal plane formed by connecting the U-shaped groove and the fixing rod; a second shaft hole is formed in the fixed rod close to the joint of the fixed rod and the fixed table; the second shaft hole is axially perpendicular to the second pin hole.
Further, the number of the second shaft holes 321 is at least one; the number of the second pin holes is at least one.
Further, the diameter of the second shaft hole is equal to that of the first shaft hole; the diameter of the screw rod of the spiral fastener is less than or equal to 5mm than the diameter of the second shaft hole and the first shaft hole.
Further, the diameters of the first pin hole and the second pin hole are equal.
Furthermore, the width of the groove is more than or equal to 1mm than the thickness of the free handle.
Further, the minimum parallel distance between the first connecting part of the free handle and the fixing table of the fixed handle is 150 mm.
The U-shaped clamp for the casting sand box has the advantages of simple manufacture, simple structure and simple and convenient operation, and can effectively improve the production efficiency; and prevent that the sand box from shaking, prevent that traditional U type card from causing the die cavity coating, the sand that looses to drop when beating the drift in the card case in-process, causing defects such as sand inclusion, gas pocket to the foundry goods. The U-shaped clamp for the casting sand box is particularly suitable for a box clamping device aiming at a non-box lug and a box lug in a misaligned sand box in the casting production and mould assembling process, can flexibly adjust the parallel distance between the first connecting part of the free handle and the fixing table of the fixing handle by arranging the plurality of pin holes and the plurality of shaft holes, and is suitable for sand box openings with different sizes.
Drawings
FIG. 1 is a schematic view showing the structure of a free shank of a U-shaped clamp for a casting flask according to the present invention.
FIG. 2 is a schematic view showing the structure of a fixing handle in the U-shaped clamp for a casting flask according to the present invention.
FIG. 3 is a schematic view showing the structure of a fixing handle in the U-shaped clamp for a casting flask according to the present invention.
FIG. 4 is a schematic view showing the construction of the U-shaped clamp for a casting flask according to the present invention.
FIG. 5 is a cross-sectional view showing a U-shaped clamp for a casting flask according to the present invention gripping a flask opening of the flask.
In the figure, 100-free handle; 110 — a first connection; 120-a second connection; 121-a first pin hole; 122-a first shaft hole; 200-a screw fastener; 210-a fixed head; 220-screw rod; 230-a nut; a gasket 240; 300-a fixed handle; 310-U-shaped groove; 311-a groove; 312-a second pin hole; 320-a fixing rod; 321-second shaft hole; 330-a fixed station; 400-a box opening buckle plate of the sand box.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment, a U-shaped clamp for a casting flask comprises a free handle, a screw fastener, a fixed handle and a pin; the free shank includes a first connection portion and a second connection portion; one end of the first connecting part is vertically and fixedly connected with one end of the second connecting part; the fixing handle comprises a U-shaped groove, a fixing rod and a fixing platform; one end of the U-shaped groove is provided with a groove; the other end of the U-shaped groove is fixedly connected with one end of the fixed rod; the other end of the fixed rod is fixedly connected with the fixed platform; one end of the second connecting part of the free handle, which is close to the first connecting part, is movably connected with the U-shaped groove of the fixed handle; the other end of the second connecting part of the free handle is connected with the fixing rod of the fixing handle through a spiral fastener.
The U-shaped clamp for the casting sand box has the advantages of simple manufacture, simple structure and simple and convenient operation, and can effectively improve the production efficiency; and prevent that the sand box from shaking, prevent that traditional U type card from causing the die cavity coating, the sand that looses to drop when beating the drift in the card case in-process, causing defects such as sand inclusion, gas pocket to the foundry goods. The U-shaped clamp for the casting sand box is particularly suitable for a box clamping device aiming at a non-box lug and a box lug in a misaligned sand box in the casting production and mould assembling process, can flexibly adjust the parallel distance between the first connecting part of the free handle and the fixing table of the fixing handle by arranging the plurality of pin holes and the plurality of shaft holes, and is suitable for sand box openings with different sizes.
The U-shaped clamp for a foundry flask will be described with reference to specific embodiments to further understand the inventive concept of the U-shaped clamp for a foundry flask. Referring to fig. 1, in one embodiment, a U-clamp for a casting flask includes a free handle 100, a screw fastener 200, and a fixing handle 300; the free shank 100 includes a first connection portion 110 and a second connection portion 120; one end of the first connecting part 110 is vertically and fixedly connected with one end of the second connecting part 120; the fixing handle 300 comprises a U-shaped groove 310, a fixing rod 320 and a fixing table 330; one end of the U-shaped groove 310 is provided with a groove 311; the other end of the U-shaped groove 310 is fixedly connected with one end of a fixing rod 320; the other end of the fixing rod 320 is fixedly connected with a fixing table 330; one end of the second connecting part 120 of the free handle 100, which is close to the first connecting part 110, is movably connected with the U-shaped groove 310 of the fixed handle 300 through a pin; the other end of the second connection portion 120 of the free shank 100 is connected to the fixing rod 320 of the fixing shank 300 by the screw fastener 200.
In the present embodiment, referring to fig. 5, the screw fastener 200 includes a fixing head 210, a screw 220, a nut 230 and a washer 240; the fixing head 210 is fixed at one end of the screw 220; the nut 230 is on the screw 220; the screw fastener 200 is inserted into the first shaft hole 122 of the free shank 100 and the second shaft hole 321 of the fixed shank 300 in sequence; the fixed head 210 is in contact with the free shank 100; a gasket 240 is sleeved between the nut 230 and the fixed handle 300; the nut 230 is used to fasten the free shank 100 and the fixed shank 300.
In the present embodiment, referring to fig. 1, the second connecting portion 120 includes a first pin hole 121 and a first shaft hole 122; a first pin hole 121 is formed on a horizontal plane formed by connecting the first connecting part 110 and the second connecting part 120, and is close to the first connecting part 110; the second connecting portion 120 has a first axial hole 122 at an end thereof away from the first connecting portion 110; the first axial hole 122 is axially perpendicular to the first pin hole 121; in order to be suitable for sand box openings with different sizes, the number of the first pin holes 121 is at least one; the number of the first shaft holes 122 is at least one.
In the present embodiment, referring to fig. 3, a second pin hole 312 is formed at an end of the U-shaped groove 310 far from the fixing rod 320 on a horizontal plane formed by the connection between the U-shaped groove 310 and the fixing rod 320; a second shaft hole 321 is formed on the fixing rod 320 near the joint of the fixing rod 320 and the fixing table 330; the second shaft hole 321 is axially perpendicular to the second pin hole 312; in order to be suitable for sand box openings with different sizes, the number of the second shaft holes 321 is at least one; the number of the second pin holes 312 is at least one.
In the present embodiment, referring to fig. 2 and fig. 3, the diameter of the second shaft hole 321 is equal to the diameter of the first shaft hole 122; the diameters of the first pin hole 121 and the second pin hole 312 are equal; the diameter of the screw 220 of the screw fastener 200 is less than or equal to 5mm than the diameter of the second shaft hole 321 and the first shaft hole 122; the minimum parallel distance between the first connection portion 110 of the free shank 100 and the fixing table 330 of the fixed shank 300 is 150 mm.
The specific embodiment is as follows:
in one embodiment, referring to fig. 1 to 5, the diameter of the screw fastener 200 is Φ 10mm, and the diameters of the second shaft hole 321 and the first shaft hole 122 are 12 mm; the number of the second shaft holes 321 is 2; the number of the first shaft holes 122 is 2; the thickness of the fixing handle 300 is 50 mm; the thickness of the free handle is 25 mm; the diameter of the pin is phi 10 mm; the parallel distance between the first connection portion 110 of the free shank 100 and the fixing table 330 of the fixed shank 300 is 180 mm.
In one embodiment, referring to FIG. 5, the diameter of the screw fastener 200 is Φ 20mm, and the diameters of the second shaft hole 321 and the first shaft hole 122 are 23 mm; the number of the second shaft holes 321 is 2; the number of the first shaft holes 122 is 2; the thickness of the fixing handle 300 is 60 mm; the thickness of the free handle is 25 mm; the diameter of the pin 400 is Φ 23 m; the parallel distance between the first connection portion 110 of the free handle 100 and the fixing table 330 of the fixed handle 300 is 190 mm.
In one embodiment, the method for using the U-shaped clamp for the casting sand box comprises the following steps:
firstly, in the casting process, after sand molds are molded, the parallel distance between the first connecting part 110 of the free handle 100 and the fixed table 330 of the fixed handle 300 is adjusted, and the first connecting part 110 of the free handle 100 and the fixed table 330 of the fixed handle 300 are respectively clamped on the upper surface and the lower surface of two gate plates;
secondly, the screw cap 230 of the screw fastener 200 close to the outer side of the fixed rod 320 is screwed to be dead, so that the first connecting part 110 of the free handle 100 and the fixed table 330 of the fixed handle 300 are tightly clamped on the sand box mouth buckle plate 400, and the sand box mouth cannot move;
and thirdly, after the casting is poured, when the sand box is opened, the screw cap 230 at one end of the spiral fastener 200 is loosened, and the U-shaped clamp is taken down for recycling.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The U-shaped clamp for the casting sand box is characterized by comprising a free handle, a spiral fastener and a fixed handle;
the free shank includes a first connection portion and a second connection portion; one end of the first connecting part is vertically and fixedly connected with one end of the second connecting part; the second connecting part comprises a first pin hole and a first shaft hole; a horizontal plane formed by connecting the first connecting part and the second connecting part is provided with a first pin hole close to the first connecting part; a first shaft hole is formed in one end, far away from the first connecting part, of the second connecting part; the first shaft hole is axially vertical to the first pin hole;
the fixing handle comprises a U-shaped groove, a fixing rod and a fixing platform; one end of the U-shaped groove is provided with a groove; the other end of the U-shaped groove is fixedly connected with one end of the fixed rod; the other end of the fixed rod is fixedly connected with the fixed platform; a second pin hole is formed in one end, far away from the fixed rod, of the U-shaped groove on the horizontal plane formed by connecting the U-shaped groove and the fixed rod; a second shaft hole is formed in the fixed rod close to the joint of the fixed rod and the fixed table; the second shaft hole is axially vertical to the second pin hole;
the diameters of the second shaft hole and the first shaft hole are equal, and the diameters of the first pin hole and the second pin hole are equal;
one end of the second connecting part of the free handle, which is close to the first connecting part, is movably connected with the U-shaped groove of the fixed handle; the other end of the second connecting part of the free handle is connected with the fixing rod of the fixing handle through a spiral fastener.
2. The U-shaped clamp for a casting flask according to claim 1, wherein the number of the first pin holes is at least one; the number of the first shaft holes is at least one.
3. The U-shaped clamp for a casting flask according to claim 1, wherein the number of the second shaft holes is at least one; the number of the second pin holes is at least one.
4. The U-clamp for a foundry flask of claim 1, wherein the screw of the screw fastener has a diameter of less than or equal to 5mm in diameter of the second axial hole and the first axial hole.
5. The U-shaped clamp for a casting flask according to claim 1, wherein the width of the groove is more than or equal to 1mm larger than the thickness of the free shank.
6. The U-clamp for a casting flask according to claim 1, wherein the first connecting portion of the free lever is spaced apart from the fixing table of the fixing lever by a minimum parallel distance of 150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930259.9A CN110508759B (en) | 2019-09-30 | 2019-09-30 | U-shaped clamp for casting sand box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930259.9A CN110508759B (en) | 2019-09-30 | 2019-09-30 | U-shaped clamp for casting sand box |
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| CN110508759A CN110508759A (en) | 2019-11-29 |
| CN110508759B true CN110508759B (en) | 2021-03-12 |
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| CN201910930259.9A Active CN110508759B (en) | 2019-09-30 | 2019-09-30 | U-shaped clamp for casting sand box |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834380A (en) * | 2016-05-26 | 2016-08-10 | 共享装备股份有限公司 | Movable fixture for casting sand box |
| CN110076301A (en) * | 2019-05-13 | 2019-08-02 | 和县华顺铸造有限公司 | A kind of double case sand molds and its fastener used |
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| JPS4957513U (en) * | 1972-09-01 | 1974-05-21 | ||
| CN202559741U (en) * | 2012-03-31 | 2012-11-28 | 杨德全 | Template clamp |
| CN204416276U (en) * | 2015-01-20 | 2015-06-24 | 福建六建集团有限公司 | Novel simple brick-clamping device |
| CN205341838U (en) * | 2016-01-11 | 2016-06-29 | 中车戚墅堰机车车辆工艺研究所有限公司 | Dual -purpose sand box fastener |
| CN206253925U (en) * | 2016-12-13 | 2017-06-16 | 重庆市永川区富强机械制造有限公司 | A kind of clamping tool for machine work in adjustable direction |
| CN206845526U (en) * | 2017-06-27 | 2018-01-05 | 山东钢铁股份有限公司 | A kind of leak clamping device of water pump bearing case |
| CN107414034B (en) * | 2017-07-28 | 2019-11-15 | 共享装备股份有限公司 | Cast the card case apparatus of small-sized sandbox |
| CN207874246U (en) * | 2018-02-07 | 2018-09-18 | 南京科远自动化集团股份有限公司 | A kind of high reliability fixture for loading and unloading container lockset |
| CN208428392U (en) * | 2018-03-08 | 2019-01-25 | 张前 | A kind of carpenter's fixing clamp |
| CN108526414A (en) * | 2018-04-23 | 2018-09-14 | 共享装备股份有限公司 | Separate type gripping mechanism |
| CN208945118U (en) * | 2018-07-31 | 2019-06-07 | 安徽海立精密铸造有限公司 | A kind of sand box used for casting positioning device |
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2019
- 2019-09-30 CN CN201910930259.9A patent/CN110508759B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834380A (en) * | 2016-05-26 | 2016-08-10 | 共享装备股份有限公司 | Movable fixture for casting sand box |
| CN110076301A (en) * | 2019-05-13 | 2019-08-02 | 和县华顺铸造有限公司 | A kind of double case sand molds and its fastener used |
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| CN110508759A (en) | 2019-11-29 |
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