CN114603123A - Fastening tool for box-free casting and using method thereof - Google Patents
Fastening tool for box-free casting and using method thereof Download PDFInfo
- Publication number
- CN114603123A CN114603123A CN202210117056.XA CN202210117056A CN114603123A CN 114603123 A CN114603123 A CN 114603123A CN 202210117056 A CN202210117056 A CN 202210117056A CN 114603123 A CN114603123 A CN 114603123A
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- China
- Prior art keywords
- pull rod
- baffle
- rod sleeve
- fastening
- fastening tool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/06—Burdening or relieving moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a fastening tool for box-free casting, which comprises a first baffle, a fastening assembly and a second baffle, wherein the fastening assembly comprises a pull rod and a pull rod sleeve with a hollow structure inside, internal threads are arranged in the pull rod sleeve, external threads matched with the internal threads are arranged at one end, away from the second baffle, of the pull rod, and the pull rod sleeve is in threaded connection with the pull rod; one end of the pull rod sleeve, which deviates from the pull rod, is connected with the first baffle, and one end of the pull rod, which deviates from the pull rod sleeve, is connected with the second baffle. The invention further relates to a using method of the fastening tool for the box-free casting. The fastening tool for the boxless casting, disclosed by the invention, realizes fastening of a sand core/sand mold, the pull rod is arranged in the pull rod sleeve, the fastening tool has a self-protection function of internal and external threads, and the baffle plate is provided with the open slot, so that the fastening tool is easy to clamp and fasten, can be repeatedly used for a long time, improves the production efficiency and saves the production cost.
Description
Technical Field
The invention relates to the technical field of box-free casting, in particular to a fastening tool for box-free casting and a using method thereof.
Background
In the preorder production of sand casting, mold assembling is a more critical link, wherein the assembly precision and fastening firmness of the sand core/sand mold are more core parts of the sand core/sand mold, and particularly, in the process of mass production operation, a tool with simple structure and convenient operation is required to be matched so as to meet the assembly fastening standard required by mold assembling, improve the field production efficiency and reduce the labor intensity of workers.
In the box-free casting process, the sand mould/sand core cannot be fixed through the box lug of the sand box, and the sand core/sand mould is clamped by a screw and nut combined tool in the prior art. On one hand, the screw thread is exposed outside, screw rod protection work needs to be added after the box is closed, and when the screw rod is not protected in place, pouring molten iron splashes or flows and adheres to the screw thread, so that the screw rod can be discarded and cannot be used repeatedly; on the other hand, in the clamping screw rod process, because sand grains on the surface of the sand core/sand mold fall off, or hard residues or tiny scrap iron fall into the fit clearance of the threads, the nut is directly blocked, the clamping operation is screwed, an operator is forced to stop the clamping operation, the screw rod is taken out through reworking, foreign matters in the fit clearance are cleaned, and the operation process is difficult.
In the box-making process, because the temperature is higher after molten iron is poured, an operator cannot approach the bare-poured sand core/sand mold disassembly screw for a long time, so that the whole box-making of the tool is not disassembled, the threads on the fastening screw can deform and damage due to mechanical damage, the tool cannot be repaired and scrapped, and the field production efficiency and the production cost are greatly influenced.
Disclosure of Invention
Therefore, the fastening tool for the box-free casting and the using method thereof need to be provided aiming at the technical problems that the tool is easy to damage, the assembly clamping efficiency of the sand core/sand mold is low and the like.
In order to solve the problems, the invention adopts the following technical scheme:
the embodiment of the invention discloses a fastening tool for box-less casting, which comprises a first baffle 300, a fastening assembly and a second baffle 400, wherein the fastening assembly comprises a pull rod 200 and a pull rod sleeve 100 with a hollow structure inside, an internal thread 103 is arranged in the pull rod sleeve 100, an external thread 201 matched with the internal thread 103 is arranged at one end, away from the second baffle 400, of the pull rod 200, and the pull rod sleeve 100 is in threaded connection with the pull rod 200; one end of the pull rod sleeve 100, which is far away from the pull rod 200, is connected with the first baffle 300, and one end of the pull rod 200, which is far away from the pull rod sleeve 100, is connected with the second baffle 400.
In one embodiment, a first opening groove is formed on the first baffle 300, and the pull rod sleeve 100 is arranged in the first opening groove; the fastening assembly further includes a limiting member 102, and the limiting member 102 is disposed at an end of the pull rod sleeve 100 away from the pull rod 200 and is in limiting fit with the first opening groove.
Further, the fastening assembly further includes a control member 101, and the control member is disposed on a side of the limiting member 102 away from the pull rod sleeve 100.
In one embodiment, the fastening assembly further includes a limiting seat 202, and a limiting seat 202 is disposed at an end of the pull rod 200 facing away from the pull rod sleeve 100; two clamping grooves 203 are arranged on the limiting seat 202 in parallel, a second open slot is formed in the second baffle 400, and the second open slot is in limiting fit with the clamping grooves 203.
The fastening tool for the boxless casting in any embodiment is made of metal.
In a second aspect, the invention further discloses a use method of the fastening tool for the flaskless casting in any embodiment, wherein through holes are formed in upper and lower sand molds or sand cores, and the pull rod sleeve 100 and the pull rod 200 are arranged in the through holes; the first baffle 300 and the second baffle 400 are driven to move relatively by rotating the pull rod sleeve 100 and/or the pull rod 200 so as to clamp the upper sand mould or the lower sand mould or the sand core sand mould.
Further, a platform 500 is disposed on the sand mold and/or the sand core for placing the first baffle 300 and/or the second baffle 400.
The technical scheme adopted by the invention can achieve the following beneficial effects:
according to the fastening tool for the boxless casting, disclosed by the invention, through reasonable structural design, the fastening assembly drives the first baffle and the second baffle to move oppositely, so that the sand core/sand mold is fastened; the pull rod is arranged in the pull rod sleeve, and the fastening tool has the self-protection function of the internal thread and the external thread. The baffle plate is provided with the open slot, and is in limit fit with the limit part and/or the limit seat, so that the clamping and fastening are easily realized, the baffle plate can be repeatedly used for a long time, the production efficiency is improved, and the production cost is saved. The invention also discloses a use method of the fastening tool for the boxless casting, and the fastening force is increased by arranging the platform on the sand mould and the sand core and matching with the structural design of the fastening tool.
Drawings
Fig. 1 is a schematic structural view of a fastening tool for flaskless casting, which is disclosed by an embodiment of the invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of the tie rod;
FIG. 4 is a schematic view of a fastening tool for flaskless casting according to an embodiment of the present invention;
fig. 5 is a partial view of fig. 4.
Description of reference numerals:
100-pull rod sleeve, 101-control member, 102-limit member, 103-internal thread, 200-pull rod, 201-external thread, 202-limit seat, 203-clamping groove, 300-first baffle, 400-second baffle and 500-platform.
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.
As shown in fig. 1 to 3, the embodiment of the invention discloses a fastening tool for flaskless casting, which comprises a first baffle 300, a fastening assembly and a second baffle 400, wherein one end of the fastening assembly is connected with the first baffle 300, and the other end of the fastening assembly is connected with the second baffle 400; after the lower sand mold and the upper sand mold are combined or the sand core and the lower sand mold are assembled, the top surface of the upper sand mold or the sand core is provided with the first baffle 300, the bottom surface of the lower sand mold is provided with the second baffle 400, the lower sand mold and the upper sand mold or the sand core are provided with the through holes which penetrate through, the fastening assembly penetrates through two ends of the through holes to be respectively connected with the first baffle 300 and the second baffle 400, and the fastening effect of the first baffle 300 and the second baffle 400 on the sand mold and the sand core is realized.
Specifically, the length of the fastening assembly is adjustable, and the fastening tool is suitable for fastening sand moulds and sand cores of different sizes by adjusting the length of the fastening assembly. The fastening assembly comprises a pull rod 200 and a pull rod sleeve 100, a cylindrical hollow structure is arranged in the pull rod sleeve 100, one end of the pull rod 200 is arranged in the hollow structure of the pull rod sleeve 100, and the other end of the pull rod 200 is connected with the second baffle 400; the inner surface of the hollow structure of the pull rod sleeve 100 is provided with an internal thread 103, one end of the pull rod 200 is provided with an external thread 201 matched with the internal thread 103, and the pull rod sleeve 100 and the pull rod 200 are connected through the internal thread 103 and the external thread 201 and adjust the length of the fastening assembly. The end of the pull rod sleeve 100 facing away from the pull rod 200 is connected to the first baffle 300. The internal thread 103 and the external thread 201 are arranged in the pull rod sleeve 100, are not exposed outside, do not need to be protected additionally, and can prevent the damage to the tool caused by molten iron splashing and the like during pouring. One end of the pull rod sleeve 100, which deviates from the pull rod 200, is sealed, and the sealed end of the pull rod sleeve 100 is arranged above the pull rod 200, so that sand grains, dust, particle impurities and the like falling off from the surface of the sand mould/sand core can not fall into the fit clearance between the internal thread 103 and the external thread 201 in the clamping process, the shutdown and the rework cleaning are not needed, and the production efficiency is improved.
It should be noted that the length of the external thread 201 is measured and calculated according to the pre-estimated pressure values borne by the clamped sand core and sand mold; the diameter of the part of the pull rod 200 not provided with the external thread 201 is smaller than the root diameter of the external thread 201.
In the embodiment of the present disclosure, the first baffle 300 is provided with a first opening groove, and the size of the first opening groove matches with the outer diameter of the pull rod sleeve 100; the fastening assembly further includes a limiting member 102, the limiting member 102 is disposed at the sealed end of the pull rod sleeve 100, the limiting member 102 and the pull rod sleeve 100 can be connected in a welding manner or can be integrally formed, the transverse dimension of the limiting member 102 is greater than the dimension of the first opening groove, the first baffle 300 is sleeved on the pull rod sleeve 100 from the first opening groove, and the limiting member 102 limits the first baffle 300 to prevent the first baffle 300 from being separated from the sealed end of the pull rod sleeve 100.
Preferably, the fastening assembly further includes a control member 101, the control member 101 is disposed on a side of the limiting member 102 away from the pull rod sleeve 100, the pull rod sleeve 100 can be controlled to rotate by the control member 101 to adjust the height of the fastening assembly, and meanwhile, the first baffle 300 does not rotate; the control member 101 may be a groove or a nut disposed on the position-limiting member 102, and the rotation of the pull rod cover 100 is controlled by using a matched tool or manually.
In the embodiment of the disclosure, the fastening assembly further includes a limiting seat 202, the limiting seat 202 is disposed at an end of the pull rod 200 away from the external thread end thereof, and similarly, the limiting seat 202 and the pull rod 200 may be integrally formed or may be connected by welding. The limiting seat 202 is provided with two clamping grooves 203 with parallel bottoms, the second baffle 400 is provided with a second open slot, the sizes of the second open slot and the clamping grooves 203 are matched, and the second baffle 400 is detachably connected with the pull rod 200 through the second open slot and the clamping grooves 203.
Of course, the positions of the limiting member 102 and the limiting seat 202 can be interchanged, and when the limiting member 102 is disposed at one end of the pull rod 200, the control member 101 controls the pull rod 200 to rotate to adjust the height of the fastening assembly; or the pull rod 200 and the pull rod sleeve 100 are both provided with the limiting piece 102.
The fastening tool for the box-free casting, disclosed by the embodiment of the invention, is made of metal materials, can be recycled for multiple times, and reduces the production cost.
The embodiment of the invention also discloses a use method of any fastening tool for the box-free casting, which comprises the following steps:
during molding, through holes are arranged at the positions where the upper sand mold and the lower sand mold need to be fastened;
after the box is closed, the pull rod sleeve 100 and the pull rod 200 are connected and arranged in the through hole, one end of the pull rod sleeve 100 is exposed out of the upper sand mold, and one end of the pull rod 200 is exposed out of the lower sand mold;
the second baffle 400 is clamped at the exposed end of the pull rod 200, and the first baffle 300 is sleeved at the exposed end of the pull rod sleeve 100;
the pull rod sleeve 100 is rotated, and the length of the fastening assembly is adjusted through interaction of the internal threads 103 and the external threads 201, so that the first baffle 300 and the second baffle 400 are driven to clamp the upper sand mold and the lower sand mold.
Preferably, the upper sand mold and/or the lower sand mold is provided with a platform 500 for placing the first baffle 300 and/or the second baffle 400, the shape of the platform 500 corresponds to the shape and size of the first baffle 300 and/or the second baffle 400, and when the pull rod sleeve 100 is rotated, the platform 500 limits the first baffle 300 and the second baffle 400 to perform a rotational motion so that the first baffle 300 and the second baffle 400 only perform an up-and-down linear motion.
Of course, the fastening tool for the boxless casting disclosed in the embodiment of the invention can be used for fastening not only the upper sand mold and the lower sand mold, but also the sand core and the lower sand mold, and the invention is not particularly limited to this.
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 (7)
1. The fastening tool for the box-free casting is characterized by comprising a first baffle (300), a fastening assembly and a second baffle (400), wherein the fastening assembly comprises a pull rod (200) and a pull rod sleeve (100) with a hollow structure inside, an internal thread (103) is arranged in the pull rod sleeve (100), an external thread (201) matched with the internal thread (103) is arranged at one end, away from the second baffle (400), of the pull rod (200), and the pull rod sleeve (100) is in threaded connection with the pull rod (200); one end, deviating from the pull rod (200), of the pull rod sleeve (100) is connected with the first baffle (300), and one end, deviating from the pull rod sleeve (100), of the pull rod (200) is connected with the second baffle (400).
2. The fastening tool for the boxless casting according to claim 1, wherein a first opening groove is formed in the first baffle plate (300), and the pull rod sleeve (100) is arranged in the first opening groove; the fastening assembly further comprises a limiting piece (102), and the limiting piece (102) is arranged at one end, deviating from the pull rod (200), of the pull rod sleeve (100) and is in limiting fit with the first open slot.
3. The fastening tool for the flaskless casting according to claim 2, wherein the fastening assembly further comprises a control member (101), and the control member (101) is disposed on a side of the limiting member (102) away from the pull rod sleeve (100).
4. The fastening tool for the boxless casting according to claim 1, wherein the fastening assembly further comprises a limiting seat (202), and the limiting seat (202) is arranged at one end, away from the pull rod sleeve (100), of the pull rod (200); two clamping grooves (203) are arranged on the limiting seat (202) in parallel, a second open slot is formed in the second baffle (400), and the second open slot is in limiting fit with the clamping grooves (203).
5. The fastening tool for the boxless casting according to claim 1, wherein the fastening tool is made of metal.
6. The use method of the fastening tool for the boxless casting according to any one of claims 1 to 5, characterized in that through holes are formed in upper and lower sand molds or sand core sand molds, and the pull rod sleeve (100) and the pull rod (200) are arranged in the through holes; the first baffle plate (300) and the second baffle plate (400) are driven to move relatively by rotating the pull rod sleeve (100) and/or the pull rod (200) so as to clamp an upper sand mold or a lower sand mold or a sand core sand mold.
7. The use method of the fastening tool for the boxless casting according to claim 6, characterized in that a platform (500) is arranged on a sand mold and/or a sand core and used for placing the first baffle plate (300) and/or the second baffle plate (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210117056.XA CN114603123A (en) | 2022-02-08 | 2022-02-08 | Fastening tool for box-free casting and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210117056.XA CN114603123A (en) | 2022-02-08 | 2022-02-08 | Fastening tool for box-free casting and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114603123A true CN114603123A (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210117056.XA Pending CN114603123A (en) | 2022-02-08 | 2022-02-08 | Fastening tool for box-free casting and using method thereof |
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| CN (1) | CN114603123A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120217677A1 (en) * | 2009-09-30 | 2012-08-30 | Ksb Aktiengesellschaft | Boxless Casting Mold and Method for the Production Thereof |
| CN203526466U (en) * | 2013-10-14 | 2014-04-09 | 南方汇通股份有限公司 | Box-free sand mold locking device |
| US20160089717A1 (en) * | 2013-04-17 | 2016-03-31 | Bühler AG | Tie bar withdrawing device |
| CN105665652A (en) * | 2016-01-11 | 2016-06-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Dual-purpose sand box fastening device and using method |
| CN106311984A (en) * | 2015-06-30 | 2017-01-11 | 共享装备有限公司 | Sand core assembling clamp for removable-flask molding and using method of sand core assembling clamp |
| CN206445186U (en) * | 2017-06-08 | 2017-08-29 | 嘉善津隈精密机械有限公司 | A kind of unilateral sand mold mould assembling fastening case card |
| CN206779390U (en) * | 2017-04-28 | 2017-12-22 | 共享装备股份有限公司 | A kind of fixation frock between sand mold and core |
| CN107661965A (en) * | 2017-09-11 | 2018-02-06 | 常州中车汽车零部件有限公司 | A kind of automatic core setter structure and lower core method |
| CN108788021A (en) * | 2018-06-20 | 2018-11-13 | 四川共享铸造有限公司 | Core fastening device for assembling |
| CN110935847A (en) * | 2019-10-30 | 2020-03-31 | 共享装备股份有限公司 | Positioning tool and positioning method thereof |
| CN113084099A (en) * | 2021-03-30 | 2021-07-09 | 共享装备股份有限公司 | Anti-falling device for box turning and using method thereof |
-
2022
- 2022-02-08 CN CN202210117056.XA patent/CN114603123A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120217677A1 (en) * | 2009-09-30 | 2012-08-30 | Ksb Aktiengesellschaft | Boxless Casting Mold and Method for the Production Thereof |
| US20160089717A1 (en) * | 2013-04-17 | 2016-03-31 | Bühler AG | Tie bar withdrawing device |
| CN203526466U (en) * | 2013-10-14 | 2014-04-09 | 南方汇通股份有限公司 | Box-free sand mold locking device |
| CN106311984A (en) * | 2015-06-30 | 2017-01-11 | 共享装备有限公司 | Sand core assembling clamp for removable-flask molding and using method of sand core assembling clamp |
| CN105665652A (en) * | 2016-01-11 | 2016-06-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Dual-purpose sand box fastening device and using method |
| CN206779390U (en) * | 2017-04-28 | 2017-12-22 | 共享装备股份有限公司 | A kind of fixation frock between sand mold and core |
| CN206445186U (en) * | 2017-06-08 | 2017-08-29 | 嘉善津隈精密机械有限公司 | A kind of unilateral sand mold mould assembling fastening case card |
| CN107661965A (en) * | 2017-09-11 | 2018-02-06 | 常州中车汽车零部件有限公司 | A kind of automatic core setter structure and lower core method |
| CN108788021A (en) * | 2018-06-20 | 2018-11-13 | 四川共享铸造有限公司 | Core fastening device for assembling |
| CN110935847A (en) * | 2019-10-30 | 2020-03-31 | 共享装备股份有限公司 | Positioning tool and positioning method thereof |
| CN113084099A (en) * | 2021-03-30 | 2021-07-09 | 共享装备股份有限公司 | Anti-falling device for box turning and using method thereof |
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