CN111230042B - Mold clamping device and mold - Google Patents
Mold clamping device and mold Download PDFInfo
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- CN111230042B CN111230042B CN202010090824.8A CN202010090824A CN111230042B CN 111230042 B CN111230042 B CN 111230042B CN 202010090824 A CN202010090824 A CN 202010090824A CN 111230042 B CN111230042 B CN 111230042B
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- guide rod
- limiting
- hole
- groove
- inner cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
Abstract
The invention provides a mold locking device and a mold, which relate to the technical field of casting and comprise: the bottom of an inner cavity of the guide sleeve is provided with an unlocking groove; the locking seat is provided with an axial through hole, and a guide rod is elastically arranged in the axial through hole; the top of the locking seat is provided with a first inserting end which is inserted and matched with the inner cavity, and the top of the guide rod is provided with a second inserting end which is inserted and matched with the unlocking groove; the side wall of the first inserting end is provided with a limiting hole communicated with the axial through hole, and a limiting ball is movably assembled between the side wall of the guide rod and the limiting hole; the second plug-in end is wedge-shaped, and the side cavity wall of the inner cavity is provided with a limiting groove corresponding to the limiting hole. In the technical scheme, when the upper template and the lower template adopt any number of the mould locking devices to lock the relative mould, the locking state of each mould locking device is consistent in length, so that the mould can be uniformly locked at each position of the upper template and the lower template, the problem of the deviation of the upper template relative to the lower template can be avoided, and the mould locking quality is ensured.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a mold locking device and a mold.
Background
In the field of investment casting, molds are the tools used for forming. The investment casting mold has high precision requirement on the investment casting mold, and needs professional personnel to operate during assembly and disassembly, and particularly for large and complex molds, the number of loose blocks can reach four to five hundred. Therefore, the positioning between the movable blocks and the mode locking and locking mode are particularly important.
At present, the mould locking and pressure maintaining of the mould in the wax injection and mould filling process are mostly realized by the mould locking force of an upper mould plate and a lower mould plate of a wax pressing device. To the volume surpass wax pressing equipment restriction, can not use the mould of wax pressing equipment mode locking, mould locking mode is mostly the guide pillar and adds the screw connection. However, the locking mode can cause relative offset of the upper template and the lower template due to uneven stress, and the mode locking effect is influenced.
Disclosure of Invention
The invention aims to provide a mold locking device and a mold, which aim to solve the technical problem that in the prior art, mold locking is easy to deviate and the mold locking effect is influenced.
The invention provides a mold locking device, comprising:
the bottom of an inner cavity of the guide sleeve is provided with an unlocking groove;
the locking seat is provided with an axial through hole, and a guide rod is elastically arranged in the axial through hole;
the top of the locking seat is provided with a first inserting end which is inserted and matched with the inner cavity, and the top of the guide rod is provided with a second inserting end which is inserted and matched with the unlocking groove;
the side wall of the first inserting end is provided with a limiting hole communicated with the axial through hole, and a limiting bead is movably assembled between the side wall of the guide rod and the limiting hole; the second inserting end is wedge-shaped, and a limiting groove corresponding to the limiting hole is formed in the side cavity wall of the inner cavity.
Further, the side opening wall of the axial through hole is provided with a mounting groove, an elastic piece is mounted in the mounting groove, and the elastic piece is elastically connected with the guide rod.
Furthermore, the mounting groove is circumferentially arranged along the axial through hole for a circle and extends to the bottom end of the locking seat;
the bottom end of the guide rod is provided with a limiting piece; one end of the elastic piece is elastically abutted against the limiting piece, and the other end of the elastic piece is elastically abutted against the groove bottom of the mounting groove.
Furthermore, the elastic part is a spring, and the spring is sleeved on the guide rod.
Furthermore, the limiting part is a check ring sleeved at the bottom end of the guide rod; and a nut is arranged at the bottom end of the guide rod in a threaded manner, and the retainer ring is elastically clamped between the elastic part and the nut.
Furthermore, the cross section of the mounting groove is circular, and the diameter of the retainer ring is smaller than or equal to that of the cross section of the mounting groove.
Further, the edge of the cavity opening of the inner cavity is provided with an inclined surface, and the inclined surface inclines inwards towards the center of the inner cavity.
Furthermore, a buffer groove is formed in the bottom of the unlocking groove.
Furthermore, the number of the limiting holes is multiple, the limiting holes are evenly distributed along the circumferential direction of the first inserting end, and a circle of limiting grooves is formed along the circumferential direction of the inner cavity.
The invention also provides a die which comprises the die locking device.
In the technical scheme, when the upper template and the lower template adopt any number of the mould locking devices to lock the relative mould, the locking state of each mould locking device is consistent in length, so that the mould can be uniformly locked at each position of the upper template and the lower template, the problem of the deviation of the upper template relative to the lower template can be avoided, and the mould locking quality is ensured.
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 front view of a mold clamping apparatus according to an embodiment of the present invention;
fig. 2 is a sectional view taken along the a-a plane of the mold clamping apparatus shown in fig. 1;
FIG. 3 is a cross-sectional view of a guide sleeve provided in accordance with one embodiment of the present invention;
fig. 4 is a cross-sectional view of a locking socket according to an embodiment of the present invention.
Reference numerals:
1. a guide sleeve; 2. a locking seat; 3. a guide bar;
11. an inner cavity; 12. unlocking the groove; 13. a limiting groove;
14. an inclined surface; 15. a buffer tank;
21. an axial through hole; 22. a first plug end;
23. a limiting hole; 24. a limiting bead;
25. mounting grooves; 26. an elastic member;
31. a second plug end; 32. a limiting member;
33. and a nut.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.
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, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.
As shown in fig. 1 and fig. 2, the present embodiment provides a mold clamping apparatus, including:
the device comprises a guide sleeve 1, wherein an unlocking groove 12 is formed in the bottom of an inner cavity 11 of the guide sleeve 1;
the locking device comprises a locking seat 2 with an axial through hole 21, wherein a guide rod 3 is elastically arranged in the axial through hole 21;
the top of the locking seat 2 is provided with a first inserting end 22 which is inserted and matched with the inner cavity 11, and the top of the guide rod 3 is provided with a second inserting end 31 which is inserted and matched with the unlocking groove 12;
a limiting hole 23 communicated with the axial through hole 21 is formed in the side wall of the first inserting end 22, and a limiting ball 24 is movably assembled between the side wall of the guide rod 3 and the limiting hole 23; the second inserting end 31 is wedge-shaped, and a side cavity wall of the inner cavity 11 is provided with a limiting groove 13 corresponding to the limiting hole 23.
When the mold locking device is used, the guide sleeve 1 needs to be assembled with the upper mold plate of the mold relatively, and then the locking seat 2 needs to be assembled with the lower mold plate of the mold relatively. When the upper template and the lower template are locked relatively, the guide sleeve 1 and the locking seat 2 of the locking device can be inserted and locked relatively. In order to ensure that the upper template and the lower template are stressed evenly relatively, a plurality of the mould locking devices can be correspondingly arranged on the upper template and the lower template, and the plurality of mould locking devices are also evenly arranged.
When the upper and lower templates are not locked, the guide sleeve 1 and the locking seat 2 of the locking device are relatively separated, as shown in fig. 3 and 4, at this time, the guide rod 3 elastically installed in the axial through hole 21 has a tendency to move downward under the elastic assembly action, and the second insertion end 31 of the guide rod 3 retracts into the axial through hole 21. Because the second inserting end 31 of the guide rod 3 is wedge-shaped, the side wall of the second inserting end 31 presses the limiting bead 24 between the side wall of the guide rod 3 and the limiting hole 23 by means of the wall surface of the second inserting end due to the downward movement tendency of the second inserting end. One side of the limiting bead 24 is subjected to lateral extrusion force of the side wall of the guide rod 3, and is movably limited between the side wall of the guide rod 3 and the limiting hole 23 due to the limiting of the limiting hole 23.
When the upper and lower templates need to be locked, the locking seat 2 can be aligned with the guide sleeve 1 after the upper and lower templates gradually approach each other, as shown in fig. 2, so that the first inserting end 22 of the locking seat 2 is inserted into the inner cavity 11 of the guide sleeve 1. Then the guide rod 3 is driven to move upwards along the axial direction of the axial through hole 21, the second inserting end 31 of the guide rod 3 is inserted close to the unlocking groove 12, the lateral extrusion to the limiting bead 24 is relieved due to the wedge-shaped structure, the limiting bead 24 shrinks inwards of the axial through hole 21, the first inserting end 22 of the locking seat 2 is ensured to be inserted into the inner cavity 11 continuously, the first inserting end 22 is abutted against the bottom of the inner cavity 11, the insertion is in place, and meanwhile, the limiting bead 24 and the limiting hole 23 correspond to the limiting groove 13 in height.
Finally, the force applied to the guide rod 3 is removed, so that the guide rod 3 recovers the downward movement trend due to the elastic assembly effect, the guide rod 3 moves downward, and the side wall of the wedge-shaped second inserting end 31 of the guide rod continues to laterally extrude the limiting bead 24, so that the part of the limiting bead 24 enters the limiting groove 13, and the locking seat 2 is prevented from being separated from the inner cavity 11 of the guide sleeve 1 through the limiting effect between the limiting bead 24 and the limiting groove 13. At the moment, the guide sleeve 1 and the locking seat 2 of the mold locking device can be locked relatively, and the upper template and the lower template are locked relatively.
When the upper template and the lower template need to be separated again, the guide rod 3 can be driven to move upwards by overcoming the elastic assembly effect again, the lateral extrusion on the limiting bead 24 is removed, the limiting bead 24 is contracted towards the axial through hole 21 until the top end of the guide rod 3 is contacted with the top end of the unlocking groove 12, and the guide sleeve 1 (and the upper die of the die) is jacked up until the guide sleeve is separated from the locking seat 2. Then, the first inserting end 22 of the locking seat 2 can be smoothly separated from the inner cavity 11 of the guide sleeve 1, and the guide rod 3 is released after the first inserting end and the second inserting end are completely separated.
It should be noted that, after the guide bar 3 is elastically fitted in the axial through hole 21, the elastic fitting action of fitting the guide bar 3 has a tendency to move the guide bar 3 downward (downward in this case, downward as viewed in fig. 1). Thus, the guide rod 3 is moved upward and engages the wedge-shaped first plug end 22, so that the lateral pressing of the stop bead 24 is released. In addition to this, the resilient mounting action of the mounting link 3 can also be arranged to have a tendency to move the link 3 upwards (here upwards in fig. 1), in which case it can also be arranged to release the lateral compression of the stop bead 24 when the link 3 moves downwards and cooperates with the inverted wedge-shaped structure. Therefore, a person skilled in the art can set the movement trend of the guide rod 3 according to actual requirements, and set a corresponding structure, which is not limited herein.
In summary, when the upper mold plate and the lower mold plate adopt any number of mold locking devices to lock the mold, the lengths of the locking states of the mold locking devices are consistent, so that the mold can be uniformly locked at each position of the upper mold plate and the lower mold plate, the problem that the upper mold plate deviates relative to the lower mold plate is avoided, and the mold locking quality is ensured.
In one embodiment, as shown in fig. 2, the side hole wall of the axial through hole 21 is provided with a mounting groove 25, an elastic member 26 is mounted in the mounting groove 25, and the elastic member 26 is elastically connected with the guide rod 3. At this time, the elastic assembly function of the assembly guide rod 3 is realized by the elastic member 26, that is, after one end of the elastic member 26 is fixed in the installation groove 25, the other end drives the guide rod 3 to move due to the elastic force, specifically, the guide rod 3 moves downward, and has a tendency to move downward.
Further, the mounting groove 25 is formed in a circle along the circumferential direction of the axial through hole 21, and the mounting groove 25 extends to the bottom end of the locking seat 2; the bottom end of the guide rod 3 is provided with a limiting piece 32; one end of the elastic member 26 is elastically abutted against the limiting member 32, and the other end of the elastic member 26 is elastically abutted against the groove bottom of the mounting groove 25. At this time, the elastic member 26 is indirectly elastically connected to the guide rod 3 through the limiting member 32, the elastic member 26 exerts an elastic force on the limiting member 32, so that the limiting member 32 tends to move downward, and at this time, the limiting member 32 is installed at the bottom end of the guide rod 3, so that the elastic force of the elastic member 26 is also indirectly exerted on the guide rod 3, so that the guide rod 3 tends to move downward. Preferably, the elastic member 26 is a spring, and the spring is sleeved on the guide rod 3. This structure can make the assembly structure between guide rod 3 and elastic component 26 more stable, and can guarantee that the elastic force is exerted more evenly, makes smooth and easy up-and-down motion of guide rod 3 in axial through-hole 21.
With continued reference to fig. 2, in one embodiment, the limiting member 32 is a retainer ring, and the retainer ring is sleeved on the bottom end of the guide rod 3; a nut 33 is threadedly mounted at the bottom end of the guide rod 3, and the retainer ring is elastically clamped between the elastic member 26 and the nut 33. At this time, the retainer ring can be fixed at the bottom end of the guide rod 3 through the nut 33 and clamped between the nut 33 and the elastic member 26 through the elastic force of the elastic member 26, so that the assembly and disassembly are more flexible and convenient, and the elastic force of the elastic member 26 is fully utilized to realize the fixed assembly of the retainer ring.
With continued reference to fig. 2, the cross-section of the mounting groove 25 is circular, and the diameter of the retainer ring is smaller than or equal to the diameter of the cross-section of the mounting groove 25. At this moment, the retainer ring can enter the mounting groove 25, so that the distance range of the axial movement of the guide rod 3 in the axial through hole 21 is wider, the operation of workers is facilitated, and the effect of providing a larger adjusting range is achieved.
Further, the edge of the opening of the inner cavity 11 is provided with an inclined surface 14, and the inclined surface 14 inclines inwards towards the center of the inner cavity 11. Because the inclined surface 14 is arranged at the opening of the inner cavity 11, when the guide sleeve 1 is inserted into the first insertion end 22 of the locking seat 2, the first insertion end 22 can be guided, so that the first insertion end 22 can enter the inner cavity 11 along the inclined surface 14.
When the upper die plate and the lower die plate are locked relatively, the guide sleeve 1 can be easily inserted into the first inserting end 22 of the locking seat 2 relatively, the inserting success rate is improved, and the locking efficiency is ensured.
Further, a buffer groove 15 is formed at the bottom of the unlocking groove 12. The buffer slot 15 can form a buffer effect on the insertion between the guide rod 3 and the unlocking slot 12, reduce the rigid contact area between the guide rod 3 and the unlocking slot 12, and prolong the service life of the whole structure.
Furthermore, the number of the limiting holes 23 is multiple, the limiting holes 23 are uniformly distributed along the circumferential direction of the first inserting end 22, and the limiting groove 13 is formed in a circle along the circumferential direction of the inner cavity 11.
The invention also provides a die which comprises the die locking device. Since the specific structure, functional principle and technical effect of the mold locking device are described in detail in the foregoing, they are not described herein again. The above description is referred to for any technical content related to the mold clamping device. In addition, when the upper die plate and the lower die plate of the die are separated and locked, the guide rod 3 can be driven by driving equipment such as an air cylinder, manual operation is omitted, and the working efficiency is improved. And those skilled in the art can set the specific driving device according to the requirement, which is not described 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.
Claims (9)
1. A mold clamping apparatus, comprising:
the bottom of an inner cavity of the guide sleeve is provided with an unlocking groove;
the locking seat is provided with an axial through hole, and a guide rod is elastically arranged in the axial through hole; the side hole wall of the axial through hole is provided with an installation groove, an elastic piece is installed in the installation groove, and the elastic piece is elastically connected with the guide rod and drives the guide rod to move downwards and has a downward movement trend;
the top of the locking seat is provided with a first inserting end which is inserted and matched with the inner cavity, and the top of the guide rod is provided with a second inserting end which is inserted and matched with the unlocking groove;
the side wall of the first inserting end is provided with a limiting hole communicated with the axial through hole, and a limiting bead is movably assembled between the side wall of the guide rod and the limiting hole; the second inserting end is wedge-shaped, and a limiting groove corresponding to the limiting hole is formed in the side cavity wall of the inner cavity.
2. The mold clamping device according to claim 1, wherein said mounting groove is circumferentially opened along said axial through hole, and said mounting groove extends to a bottom end of said locking seat;
the bottom end of the guide rod is provided with a limiting piece; one end of the elastic piece is elastically abutted against the limiting piece, and the other end of the elastic piece is elastically abutted against the groove bottom of the mounting groove.
3. The apparatus according to claim 2, wherein said elastic member is a spring, and said spring is fitted over said guide rod.
4. The apparatus according to claim 2, wherein said stopper is a retainer ring fitted around a bottom end of said guide rod; and a nut is arranged at the bottom end of the guide rod in a threaded manner, and the retainer ring is elastically clamped between the elastic part and the nut.
5. The mold clamping apparatus according to claim 4, wherein said mounting groove has a circular cross section, and said retainer ring has a diameter equal to or smaller than the diameter of said mounting groove.
6. The mode locking device according to any one of claims 1 to 5, wherein a mouth edge of said inner cavity is provided with an inclined surface that is inclined inward toward a center of said inner cavity.
7. The mold clamping apparatus according to any one of claims 1 to 5, wherein a buffer groove is provided at a bottom of said unlocking groove.
8. The mode locking device according to any one of claims 1 to 5, wherein the number of the limiting holes is plural, the plural limiting holes are uniformly distributed along the circumferential direction of the first insertion end, and the limiting groove is formed in a circle along the circumferential direction of the inner cavity.
9. A mold comprising the clamping device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090824.8A CN111230042B (en) | 2020-02-13 | 2020-02-13 | Mold clamping device and mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090824.8A CN111230042B (en) | 2020-02-13 | 2020-02-13 | Mold clamping device and mold |
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| Publication Number | Publication Date |
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| CN111230042A CN111230042A (en) | 2020-06-05 |
| CN111230042B true CN111230042B (en) | 2021-09-21 |
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| CN202010090824.8A Active CN111230042B (en) | 2020-02-13 | 2020-02-13 | Mold clamping device and mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113977850B (en) * | 2021-10-14 | 2024-02-27 | 苏州博宇科技有限公司 | Fan shell injection molding equipment and method for automatically burying copper parts |
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| CN206925276U (en) * | 2017-05-23 | 2018-01-26 | 西安秦鼎精铸制造有限公司 | A kind of rapid mould clamping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006037709B4 (en) * | 2006-08-08 | 2014-02-13 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Quick clamping unit, quick clamping system, machine or tool part and master or forming tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10235675A (en) * | 1997-02-27 | 1998-09-08 | Murata Mfg Co Ltd | Plunger coupling device for transfer molding machine |
| CN1329978A (en) * | 2000-06-15 | 2002-01-09 | 双叶电子工业株式会社 | Positioning pin, positinoing casing of moulding-die and positioning mechanism of moulding-die |
| CN101164758A (en) * | 2006-10-20 | 2008-04-23 | 鸿富锦精密工业（深圳）有限公司 | Opening and closing device for mould and mould using the same |
| CN203171482U (en) * | 2013-03-29 | 2013-09-04 | 飞马逊自动化技术（天津）有限公司 | Side plate assembly mold locking device for heat exchanger assembly machine |
| CN103660358A (en) * | 2013-11-28 | 2014-03-26 | 苏州凯尔博精密机械有限公司 | Automatic fast mould locking device |
| CN105140720A (en) * | 2015-08-31 | 2015-12-09 | 中航光电科技股份有限公司 | Housing assembly and connector |
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| CN111230042A (en) | 2020-06-05 |
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