CN114678235B - Solid-sealed polar pole casting mold - Google Patents
Solid-sealed polar pole casting mold Download PDFInfo
- Publication number
- CN114678235B CN114678235B CN202210161574.1A CN202210161574A CN114678235B CN 114678235 B CN114678235 B CN 114678235B CN 202210161574 A CN202210161574 A CN 202210161574A CN 114678235 B CN114678235 B CN 114678235B
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- Prior art keywords
- positioning pin
- wedge block
- solid
- pushing
- hole
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
Abstract
The invention relates to the technical field of electrical manufacturing and power equipment, in particular to a solid-sealed pole casting mold. The solid-sealed pole casting mold comprises a mold body for forming a mold cavity in a involution manner, wherein the mold body is provided with a containing hole for embedding a casting insert on the solid-sealed pole, the bottom of the containing hole is provided with a positioning pin hole, the positioning pin hole penetrates through the mold body outwards, the inner end of the positioning pin is provided with a connecting structure, and the outer end of the positioning pin is provided with a pin head for extending out of the outer end of the positioning pin hole; the device comprises a wedge block, wherein the front end of the wedge block is provided with a pushing inclined plane, one side of the wedge block opposite to the pushing inclined plane is provided with a flat supporting surface, and two inserting arms which are arranged at intervals on the wedge block form a U-shaped opening for being clamped on a positioning pin; the die body is provided with a splicing hole which is vertical to and communicated with the positioning pin hole, and the splicing hole is provided with a supporting wall; the axial inner side of the pin head is provided with a die-loading pushing surface, and the positioning pin is also provided with a demolding pushing surface facing the axial outer side of the positioning pin.
Description
Technical Field
The invention relates to the technical field of electrical manufacturing and power equipment, in particular to a solid-sealed pole casting mold.
Background
The solid sealed pole is the most important electric component in the high-voltage circuit breaker, and the solid sealed pole is a component formed by simultaneously embedding a vacuum arc extinguishing chamber and related conductive parts of the circuit breaker into an easily-fixed solidified insulating material such as epoxy resin or thermoplastic material, so that the whole circuit breaker pole is integrated. For example, in the solid-sealed pole monopole assembly fixture and the solid-sealed pole casting method disclosed in the chinese patent document with the authority of CN106024460B, when in use, the upper wire outlet seat, the lower wire outlet seat and the vacuum arc extinguishing chamber set which are assembled together need to be installed in a mold and cast.
The casting mould for the solid-sealed polar pole in the prior art comprises an upper mould body, a lower mould body, a left mould body and a right mould body, wherein the four mould bodies are combined to form a cavity corresponding to the solid-sealed polar pole, the mould bodies are provided with accommodating holes for embedding casting inserts, the casting inserts refer to an upper wire outlet seat, a lower wire outlet seat and a vacuum arc-extinguishing chamber of the solid-sealed polar pole, the casting inserts are required to be installed in the cavity or installed on an insert installation seat and then are installed in the cavity when the solid-sealed polar pole is produced, and after the solid-sealed polar pole is installed in place, the epoxy resin or thermoplastic material and other solidified insulating materials are cast, if all parts cannot be installed in place, the precision of the solid-sealed polar pole is affected, and even products can be scrapped.
In the traditional die filling method, a tool is adopted to knock a die fitting or a pouring insert to enable the die fitting or the pouring insert to be installed in place, and then the tool is used for measuring, so that the die fitting or the pouring insert can be damaged, and the die filling efficiency is lower; the traditional mold opening method also adopts tools and the like to knock the mold fittings or directly apply force on the products, so that the mold fittings or the products can be damaged.
Disclosure of Invention
The invention aims to provide a solid-sealed pole casting mold, which solves the technical problem that mold fittings or products are possibly damaged by knocking the mold fittings or products by a tool when the mold is assembled or opened in the prior art.
In order to achieve the above purpose, the technical scheme of the solid sealed pole casting mold of the invention is as follows:
the solid-sealed pole casting mold comprises a mold body for forming a mold cavity in a involution way, wherein the mold body is provided with a containing hole for embedding a casting insert on the solid-sealed pole, the bottom of the containing hole is provided with a positioning pin hole for inserting an adaptive positioning pin, the positioning pin hole penetrates through the mold body outwards, the inner end of the positioning pin is provided with a connecting structure for connecting with the casting insert or an insert mounting seat for mounting the casting insert, and the outer end of the positioning pin is provided with a pin head for extending out of the outer end of the positioning pin hole; the solid-sealed polar pole casting mold further comprises an insert auxiliary adjusting device, wherein the insert auxiliary adjusting device comprises a wedge block, the front end of the wedge block is provided with a pushing inclined plane, one side of the wedge block, which is opposite to the pushing inclined plane, is provided with a flat supporting surface, the part of the wedge block, which is provided with the pushing inclined plane, is provided with two inserting arms which are arranged at intervals, and a U-shaped opening for being clamped on a locating pin is formed between the two inserting arms; the die body is provided with a splicing hole which is vertical to and communicated with the positioning pin hole, and the splicing hole is provided with a supporting wall for supporting a flat supporting surface on the wedge block; the axial inner side of the pin head is provided with a die-filling pushing surface which is used for driving the positioning pin to move outwards of the cavity under the pushing of the pushing inclined surface in the process that the wedge block moves towards the positioning pin in a mode that the pushing inclined surface faces to the outer side of the cavity; the positioning pin is also provided with a demolding pushing surface facing the axial outer side of the positioning pin, and the demolding pushing surface is used for driving the positioning pin to move into the cavity under the pushing of the pushing inclined surface in the process that the wedge block moves towards the positioning pin in a mode that the pushing inclined surface faces away from the outer side of the cavity.
The beneficial effects are that: in the die-filling of the solid-sealed pole casting die, the positioning pin in the insert auxiliary adjusting device is fixedly connected with the bottom of the wire outlet seat, after the wedge block is inserted into the insertion hole of the die body in a mode that the pushing inclined plane faces the outer side of the die cavity, a U-shaped opening formed by two spaced insertion arms at the front end of the wedge block is clamped and combined with the positioning pin, and the pushing inclined plane of the wedge block moving along the radial direction of the positioning pin pushes the die-filling pushing surface of the pin head, so that the positioning pin drives the casting insert or the insert mounting seat to move in a direction away from the die cavity, and the die-filling of the casting insert of the solid-sealed pole is ensured to be in place; after the wedge block is inserted into the inserting hole of the die body in a mode that the pushing inclined surface faces away from the outer side of the die cavity, the pushing inclined surface of the wedge block moving along the radial direction of the locating pin pushes the demolding pushing surface of the pin head, so that the locating pin drives the pouring insert or the insert mounting seat to move towards the direction close to the die cavity, looseness is generated between the pouring insert and the die body, and demolding of a product part is facilitated. Therefore, the distance between the casting insert and the cavity is changed by transmitting force to the locating pin through the wedge block, the acting force is prevented from being directly applied to the die fitting or the casting insert, the damage of the die fitting or the casting insert is reduced, and the product quality is improved.
Further improved, the rear end of the wedge block is fixedly provided with a guide rod, the guide rod is provided with a collision block in a guide way along the opening direction of the U-shaped opening, and the insert auxiliary adjusting device further comprises a front collision surface arranged at the connection part of the guide rod and the wedge block, and the front collision surface is used for the collision block to collide so as to drive the wedge block to move towards the positioning pin.
The beneficial effects are that: the design can impact the wedge block through the collision block so as to realize the movement of the wedge block, the force application is convenient, and knocking auxiliary tools are saved; the guide rod guides the collision block, so that the force application direction of the collision block to the wedge block can be controlled conveniently.
Further improved, one end of the guide rod, which is back to the wedge block, is fixed with a bearing seat, and a rear impact surface for the impact of the impact block is formed at the rear end of the guide rod so as to drive the wedge block to move back to the positioning pin.
The beneficial effects are that: by the design, the impact block can impact the bearing seat backwards so as to enable the wedge block to move backwards, and the wedge block is convenient to take out from the die body.
Further improved, the rear end face of the guide rod is provided with a threaded hole, and the bearing seat is fixedly arranged at the rear end of the guide rod through bolt connection.
The beneficial effects are that: by the design, the bearing seat can be detached from the guide rod, and the rear collision block can be installed and detached from the rear end of the guide rod, so that the collision block can be installed and detached conveniently.
Further improvement, the die-filling pushing surface and the demolding pushing surface are both obliquely arranged perpendicular to the plane of the positioning pin, and the pushing inclined surfaces on the wedge blocks are obliquely arranged in the corresponding directions so as to be matched with the die-filling pushing surface and the demolding pushing surface.
The beneficial effects are that: by the design, the contact area of the pushing inclined surface, the die-filling pushing surface and the demolding pushing surface is increased, so that the wedge block is convenient to transmit acting force to the positioning pin, and the positioning pin and the pouring insert or the insert mounting seat are driven to move, and abrasion is reduced.
Further, the middle part of the ram is different from the diameters of the two ends in the guiding moving direction of the ram.
The beneficial effects are that: by the design, the part with the larger diameter can form a stop for the hand holding the part with the smaller diameter, so that the collision block is not easy to slip off the collision block when being held.
Further improved, the two ends of the collision block along the axial direction of the guide rod are provided with stop shaft shoulders, and a holding part with smaller diameter is formed between the two stop shaft shoulders.
The beneficial effects are that: in such design, the two ends stop the shaft shoulders to form limit on two sides of the hand of an operator holding the holding part, so that the hand and the holding part are prevented from sliding.
Further improved, the locating pin comprises a circular table section and a locating matching section, the locating matching section is a cylindrical section matched with the locating pin hole, and the large-diameter end of the circular table section is connected with the outer end of the cylindrical section.
The beneficial effects are that: the design is favorable to locating pin and locating pin hole to realize coaxial, reduces the machining precision of locating pin, simultaneously is favorable to reducing the frictional force of locating pin and locating pin hole to the dismouting of locating pin is convenient for.
Further improved, the wedge has a thinned portion with a thickness smaller than other portions, and the insertion arm is provided on the thinned portion.
The beneficial effects are that: by the design, a movable space is reserved for the pin head of the positioning pin, and the interference between the wedge block and the pin head of the positioning pin is avoided.
Further improved, the inserting holes are guiding holes for guiding and inserting the wedge blocks and are used for guiding and matching with the flat supporting surface on the wedge blocks and one side opposite to the flat supporting surface.
The beneficial effects are that: the design is like this, and the guide hole is to perpendicular on the voussoir with the both sides face direction guide cooperation of voussoir direction of motion, avoids the voussoir to produce the skew and lead to the unable accurate cartridge of U-shaped mouth of voussoir on the locating pin in perpendicular to its direction of motion, and the reliability is good.
Drawings
FIG. 1 is a schematic structural view of a casting mold for an encapsulated pole of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of a positioning pin of the insert assist adjustment of FIG. 1;
FIG. 4 is a schematic view of an embodiment 1 of the insert assist adjustment device (not shown) of FIG. 1;
FIG. 5 is a view showing the insert auxiliary adjusting device of embodiment 2 of FIG. 1 in use for mold filling;
FIG. 6 is a first state of use of embodiment 2 of the insert-assist adjustment of FIG. 1 for demolding;
fig. 7 is a second state of use of embodiment 2 of the insert-assist adjustment of fig. 1 for demolding.
In the figure: 11. Forming a die body; 12. wedge blocks; 13. a guide rod; 14. a bump; 15. a grip portion; 16. stopping the shaft shoulder; 17. a bearing seat; 18. a positioning pin; 19. a pin head; 20. thinning the part; 21. a seal ring; 22. a wire outlet seat; 23. a side plate die body; 24. pushing the inclined plane; 25. clamping the surface; 26. an outer groove bottom; 27. the bottom of the inner groove; 28. a plug hole; 29. and a top surface.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" or the like is not excluded from a process, method, or the like that includes the element.
In the description of the present invention, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; either directly, indirectly through intermediaries, or in communication with the interior of the two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
The present invention is described in further detail below with reference to examples.
Example 1 of the solid-sealed pole casting mold of the present invention:
as shown in fig. 1 and 2, in this embodiment, the sheds of the solid sealed polar pole are distributed at two ends of the solid sealed polar pole and extend along the circumferential direction of the solid sealed polar pole, in order to ensure normal open and close mold, four parting surfaces are required to be arranged in a solid sealed polar pole casting mold, the solid sealed polar pole casting mold comprises four molding mold bodies 11, the four molding mold bodies 11 are combined to form a cavity corresponding to the solid sealed polar pole, the solid sealed polar pole casting mold further comprises an insert auxiliary adjusting device, and the insert auxiliary adjusting device is used for installing a casting insert in the solid sealed polar pole or an insert installation seat for installing the casting insert in place in the molding mold body 11 or smoothly detaching from the molding mold body 11. In this embodiment, the insert auxiliary adjusting device is used for disassembling and assembling the outlet seat 22 in the solid sealed pole.
As shown in fig. 1 to 3, the molded die body 11 is provided with a receiving hole in which the wire outlet seat 22 of the solid sealed pole is embedded, the bottom of the receiving hole is provided with a positioning pin hole, and the positioning pin hole extends outwards to penetrate through the side plate die body 23. The insert auxiliary adjusting device comprises a positioning pin 18, the positioning pin 18 is arranged in the positioning pin hole in a penetrating mode, the positioning pin 18 comprises a positioning matching section and a round table section, the positioning matching section is a cylindrical section matched with the positioning pin hole, the large-diameter end of the round table section is connected with the outer end face of the cylindrical section, and a sealing ring 21 is arranged on the outer peripheral face of the cylindrical section to ensure the sealing state in the cavity. The inner end of the positioning pin 18 is provided with external threads for connecting with a pouring insert or an insert mounting seat, and the external threads form a connecting structure; the outer end of the positioning pin 18 is provided with a pin head 19 extending out of the outer end of the positioning pin hole; the pin head 19 has a smaller diameter than the cylindrical section so that the locating pin 18 can be installed or removed from the interior of the cavity.
As shown in fig. 2 and 3, a ring groove is formed in the outer peripheral surface of the portion of the positioning pin 18 extending out of the positioning pin hole, the ring groove is located on the inner side in the axial direction of the pin head 19, an outer groove bottom 26 on the ring groove along the outer side in the axial direction of the positioning pin 18 forms a mold loading pushing surface, the outer groove bottom 26 is located on the inner side in the axial direction of the pin head 19 along the positioning pin 18, an inner groove bottom 27 on the ring groove along the inner side in the axial direction of the positioning pin 18 forms a mold stripping pushing surface, a top surface 29 on the pin head 19 along the outer side in the axial direction of the positioning pin 18 also forms a mold stripping pushing surface, the top surface 29, the outer groove bottom 26 and the inner groove bottom 27 are all arranged obliquely with respect to a plane perpendicular to the positioning pin 18, and the groove wall of the ring groove is arranged obliquely with respect to a plane parallel to the positioning pin 18. In other embodiments, the inner trough bottom, the outer trough bottom, and the top surface may be provided as straight planes.
As shown in fig. 3 and 4, the insert auxiliary adjusting device further includes a wedge block 12, a pushing inclined plane 24 is provided at the front end of the wedge block 12, two insertion arms arranged at intervals are provided at the portion of the wedge block 12 provided with the pushing inclined plane 24, a U-shaped opening for being clamped on the ring groove of the positioning pin 18 is formed between the two insertion arms, the front end of the U-shaped opening is an opening, clamping surfaces 25 for being clamped on the ring groove of the positioning pin 18 are formed on inner walls of two sides of the U-shaped opening, and the opening width of the U-shaped opening is smaller than the diameter of the pin head 19, so that the pin head 19 cannot fall off from the U-shaped opening when the pin head 19 is clamped in the U-shaped opening. In this embodiment, the clamping surface 25 is an inclined surface adapted to the groove wall of the ring groove, so as to increase the contact area between the clamping surface 25 and the ring groove and reduce wear. In other embodiments, the clamping surface 25 may be a straight plane.
As shown in fig. 1 and 4, the fixed pole casting mold further comprises a side plate mold body 23 arranged perpendicular to the parting surfaces of the front and rear molding mold bodies 11, and a plugging hole 28 for plugging the wedge block 12 is formed in the side wall surface of the side plate mold body 23, wherein the plugging hole 28 is communicated with the positioning pin hole. A flat supporting surface is arranged on one side of the wedge block 12 opposite to the pushing inclined surface 24, and the inserting hole 28 is provided with a supporting wall for supporting the flat supporting surface on the wedge block 12; meanwhile, the insertion hole 28 is a guide hole for guiding and inserting the wedge block 12, and the guide hole can be simultaneously matched with a flat supporting surface on the wedge block 12 and one side opposite to the flat supporting surface in a guiding manner, so that the situation that the U-shaped opening cannot be smoothly clamped with the annular groove of the positioning pin 18 due to the fact that the wedge block 12 deflects in the direction perpendicular to the movement direction of the wedge block 12 when the wedge block 12 moves in the insertion hole is avoided. In other embodiments, the positions of the inserting holes can be changed according to the positions of the parting surfaces, and the inserting holes can be arranged on the molding die body and perpendicular to the parting surfaces of the front molding die body and the rear molding die body.
As shown in fig. 4, the rear end of the wedge 12 is in threaded connection with a guide rod 13, a threaded hole is formed in the rear end face of the wedge 12, an external thread matched with the threaded hole is formed in the front end of the guide rod 13, so that the guide rod 13 is in threaded connection with the rear end of the wedge 12, and two planes parallel to each other are formed in the outer peripheral face of the guide rod 13, so that the guide rod 13 can be clamped by a wrench for installation or detachment.
As shown in fig. 4, the guide rod 13 is provided with a bump 14 along the opening direction of the U-shaped opening, the bump 14 is used for striking the rear end face of the wedge block 12 along the radial direction of the positioning pin 18 so as to push the wedge block 12 to move along the radial direction of the positioning pin 18, wherein the diameter of the guide rod 13 is smaller than the diameter of the wedge block 12 at the position where the guide rod 13 is in threaded connection with the guide rod 13, and the rear end face of the wedge block 12 forms a front striking face so as to bear the striking force of the bump 14 on the wedge block 12. The two ends of the collision block 14 along the axial direction of the guide rod 13 are provided with stop shaft shoulders 16, and a holding part 15 with smaller diameter is arranged between the two stop shaft shoulders 16, so that an operator can hold the collision block 14 conveniently. In this embodiment, the holding portion 15 is a cylindrical section. In other embodiments, the grip portion is in the shape of a waist drum.
As shown in fig. 4, the rear end of the guide rod 13 is connected with a bearing seat 17 through a bolt, a threaded hole is processed on the rear end surface of the guide rod 13, and a corresponding counter bore is processed on the bearing seat 17, so that the bearing seat 17 is connected with the rear end of the guide rod 13 through the bolt, and the head of the bolt is prevented from extending out of the bearing seat 17. The front end surface of the bearing seat 17 is impacted by the impact block 14 to drive the wedge block 12 to move back to the positioning pin 18, the front end surface of the bearing seat 17 forms a rear impact surface, and the bearing seat 17 can prevent the impact block 14 from falling off from the guide rod 13.
As shown in fig. 4, the wedge 12, the guide rod 13, the striker 14, and the socket 17 form a straight structure when assembled together. When the insert auxiliary adjusting device is not used, all parts can be detached and placed in the tool box.
Example 2 of the solid-sealed pole casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, the side of the wedge 12 facing away from the urging ramp 24 is a straight plane. In this embodiment, the portion of the wedge 12 provided with the insertion arm is a thinned portion 20 having a smaller thickness than the other portions of the wedge 12, providing space for the pin head 19.
The following describes the structure and working procedure of the solid-sealed pole casting mold in example 2:
the insert auxiliary adjusting device has two purposes of mold loading and mold demolding: when the insert is used for die filling, as shown in fig. 5, the wedge 12 moves towards the positioning pin 18 in a mode that the pushing inclined surface 24 faces to the outer side of the die cavity, at this time, the head 19 of the pin head of the positioning pin 18 is clamped on the U-shaped opening, the pushing inclined surface 24 is attached to the outer groove bottom 26, and the outer groove bottom 26 drives the positioning pin 18 to move to a preset position outwards of the die cavity under the pushing of the pushing inclined surface 24, so that the wire outlet seat 22 is die-filled in place. When the insert is used for demolding, the insert is in two use states, the first use state is shown in fig. 6, the wedge block 12 moves towards the positioning pin 18 in a mode that the pushing inclined surface 24 faces away from the outer side of the cavity, at the moment, the head 19 of the pin head 19 of the positioning pin 18 is clamped on the U-shaped opening, the pushing inclined surface 24 is attached to the inner groove bottom 27, and the inner groove bottom 27 drives the positioning pin 18 to move to a preset position in the cavity under the pushing of the pushing inclined surface 24, so that a gap is generated between the wire outlet seat 22 and the molded die body 11, and demolding is facilitated; in the second use state, as shown in fig. 7, the wedge 12 moves towards the positioning pin 18 in a manner that the pushing inclined plane 24 is away from the outer side of the cavity, at this time, the pin head 19 of the positioning pin 18 is clamped on the U-shaped opening, the pushing inclined plane 24 is attached to the top surface 29 of the positioning pin 18, and the top surface 29 drives the positioning pin 18 to move towards the preset position in the cavity under the pushing of the pushing inclined plane 24, so that a gap is generated between the wire outlet seat 22 and the molded die body 11, and the demolding is facilitated.
Before the solid-sealed pole casting mold is assembled, the auxiliary insert adjusting device is assembled together, two planes of the guide rod 13 are clamped by using a wrench so as to connect the guide rod 13 on the wedge block 12 in a threaded manner, then the collision block 14 is sleeved on the guide rod 13, and the bearing seat 17 is fixedly connected with the rear end of the guide rod 13 through bolts. The solid-sealed pole casting mold starts to be assembled, the positioning pin 18 is connected to the wire outlet seat 22 in a threaded manner, the wire outlet seat 22 and other casting inserts of the solid-sealed pole are assembled into the molding mold body 11 from the inside of the mold cavity, and at the moment, the pin head 19 of the positioning pin 18 extends out of the positioning pin hole. The insert auxiliary adjusting device is inserted into the inserting hole in a mode that the pushing inclined surface 24 faces the outer side of the cavity, the annular groove of the positioning pin 18 is clamped on the U-shaped opening, the pushing inclined surface 24 is attached to the outer groove bottom 26 of the positioning pin 18, an operator holds the holding part 15 of the collision block 14 to impact the wedge block 12 forwards along the radial direction of the positioning pin 18, the pushing inclined surface 24 pushes the outer groove bottom 26, the wedge block 12 drives the positioning pin 18 to move along the axial direction of the positioning pin hole back to the cavity, the wire outlet seat 22 is driven to move, after impact is carried out for a few times, the positioning pin 18 moves to a preset position, the wedge block 12 does not move any more, and the wire outlet seat 22 is die-assembled in place. After that, casting is performed.
After pouring is completed, when demolding is required, the collision block 14 backwards impacts the bearing seat 17 so as to withdraw the wedge block 12 from the inserting hole 28, the insert auxiliary adjusting device is turned over by 180 degrees, the wedge block 12 is inserted into the inserting hole 28 in a mode that the pushing inclined surface 24 faces towards the cavity, the annular groove of the positioning pin 18 is clamped on the U-shaped opening, the pushing inclined surface 24 of the wedge block 12 is attached to the inner groove bottom 27 of the positioning pin 18, an operator holds the holding part 15 of the collision block 14 to impact the wedge block 12 forwards along the radial direction of the positioning pin 18, the pushing inclined surface 24 pushes the demolding pushing surface, the wedge block 12 drives the positioning pin 18 to move along the axial direction of the positioning pin hole towards the direction close to the cavity, the wire outlet seat 22 is driven to move, and after the impact, looseness is generated between the wire outlet seat 22 and the side plate die body 23 for facilitating smooth demolding.
In the die-filling of the solid-sealed polar pole casting die, the locating pin in the insert auxiliary adjusting device is in threaded connection with the bottom of the wire outlet seat, when the wedge block is inserted into the inserting hole which is vertical to the locating pin hole in the die body, a U-shaped opening formed by two spaced inserting arms at the front end of the wedge block is clamped and assembled with the pin head of the locating pin, the pushing inclined surface of the wedge block is matched with the die-filling pushing surface or the demolding pushing surface of the pin head, the collision block assembled on the guide rod is held and guided to strike the wedge block along the radial direction of the locating pin, so that the wedge block pushing locating pin moves along the direction of facing to or away from the outer side of the die cavity, and the wire outlet seat is driven to move, so that the distance between the wire outlet seat and the die body is changed, and die-filling of a product part is ensured to be in place or demolding of the product part is facilitated. Therefore, the distance between the casting insert and the cavity is changed by transmitting force to the locating pin through the wedge block, the acting force is prevented from being directly applied to the die fitting or the casting insert, the damage of the die fitting or the casting insert is reduced, and the product quality is improved.
Example 3 of the solid-sealed pole casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, the rear end of the wedge 12 is fixed with a guide rod 13, the guide rod 13 is provided with a collision block 14 in a guiding manner along the opening direction of the U-shaped opening, and the insert auxiliary adjusting device further comprises a front collision surface arranged at the connection part of the guide rod 13 and the wedge 12, wherein the front collision surface is used for the collision of the collision block 14 to drive the wedge 12 to move towards the positioning pin 18. In this embodiment, the striker is eliminated, and a hammer or other tool may be used to strike the rear end of the guide bar to move the wedge forward. In other embodiments, the ram and guide bar may be eliminated simultaneously, at which time the rear face of the wedge may be knocked directly using a hammer or other tool to drive the wedge forward.
Example 4 of the solid-sealed post casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, the positioning pin 18 is provided with two demolding pushing surfaces, including an inner groove bottom 27 on the annular groove along the axial inner side of the positioning pin 18 and a top surface 29 on the pin head 19 along the outer side of the positioning pin shaft. In this embodiment, the positioning pin is provided with one of an inner groove bottom and a top surface to form a demolding pushing surface.
Example 5 of the solid-sealed pole casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, two planes parallel to each other are provided on the outer peripheral surface of the guide rod 13. In this embodiment, the guide bar is a square bar, and the wrench can clamp each side of the square bar.
Example 6 of the solid-sealed post casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, the rear end of the guide rod 13 is fixedly connected with a bearing seat 17, and the front end surface of the bearing seat 17 forms a rear impact surface. In this embodiment, the rear end of the guide rod is provided with a flange, and the limiting surface is disposed on the flange. In other embodiments, the rear end of the guide rod is provided with a through hole extending along the radial direction of the guide rod, and after the collision block is sleeved on the guide rod, a blocking pin is inserted into the through hole, and the contact surface of the blocking pin and the collision block forms a rear collision surface.
Example 7 of the solid-sealed post casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, the guide rod 13 is screwed to the wedge 12, a screw hole extending in the axial direction of the wedge 12 is provided in the rear end surface of the wedge 12, and an external screw thread is provided in the front end surface of the guide rod 13. In this embodiment, the guide rod is welded to the wedge. In other embodiments, the wedge 12 has external threads on its rear face and a threaded bore on the front face of the guide rod.
Example 8 of the solid-sealed post casting mold of the present invention:
the difference between this embodiment and embodiment 1 is that: in embodiment 1, the locating pin includes circle bench section and location cooperation section, and the location cooperation section is the cylinder section with the adaptation of location pinhole, and the big footpath end of circle bench section is connected with the outer end of cylinder section. In this embodiment, the locating pin is a cylindrical structure adapted to the locating pin hole.
It should be noted that the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, but may be modified without inventive effort or equivalent substitution of some technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The solid-sealed polar pole casting mold comprises a mold body for forming a mold cavity in a involution way, wherein the mold body is provided with a containing hole for embedding a casting insert on the solid-sealed polar pole, and the solid-sealed polar pole casting mold is characterized in that the bottom of the containing hole is provided with a positioning pin hole for inserting an adaptive positioning pin (18), the positioning pin hole penetrates through the mold body outwards, the inner end of the positioning pin (18) is provided with a connecting structure for connecting with the casting insert or an insert mounting seat for mounting the casting insert, and the outer end of the positioning pin (18) is provided with a pin head (19) for extending out of the outer end of the positioning pin hole; the solid-sealed pole casting mold further comprises an insert auxiliary adjusting device, wherein the insert auxiliary adjusting device comprises a wedge block (12), a pushing inclined plane (24) is arranged at the front end of the wedge block (12), a flat supporting surface is arranged on one side, opposite to the pushing inclined plane (24), of the wedge block (12), two inserting arms which are arranged at intervals are arranged on the part, provided with the pushing inclined plane (24), of the wedge block (12), and a U-shaped opening used for being clamped on a positioning pin (18) is formed between the two inserting arms; the die body is provided with a splicing hole (28) which is vertical to and communicated with the positioning pin hole, and the splicing hole (28) is provided with a supporting wall for supporting a flat supporting surface on the wedge block (12); the axial inner side of the pin head (19) is provided with a die-filling pushing surface which is used for driving the positioning pin (18) to move outwards of the die cavity under the pushing of the pushing inclined surface (24) in the process that the wedge block (12) moves towards the positioning pin (18) in a mode that the pushing inclined surface (24) faces towards the outer side of the die cavity; the positioning pin (18) is also provided with a demolding pushing surface facing the axial outer side of the positioning pin (18), and the demolding pushing surface is used for driving the positioning pin (18) to move into the cavity under the pushing of the pushing inclined surface (24) in the process that the wedge block (12) moves towards the positioning pin (18) in a mode that the pushing inclined surface (24) faces away from the outer side of the cavity.
2. The casting mold for the solid sealed pole according to claim 1, wherein a guide rod (13) is fixed at the rear end of the wedge block (12), a bump block (14) is assembled on the guide rod (13) in a guide way along the opening direction of the U-shaped opening, and the insert auxiliary adjusting device further comprises a front bump surface arranged on the connecting part of the guide rod (13) and the wedge block (12), wherein the front bump surface is used for being bumped by the bump block (14) to drive the wedge block (12) to move towards the positioning pin (18).
3. The casting mold for the solid sealed pole according to claim 2, wherein a bearing seat (17) is fixed at one end of the guide rod (13) facing away from the wedge block (12), and the bearing seat (17) forms a rear impact surface at the rear end of the guide rod (13) for being impacted by the impact block (14) to drive the wedge block (12) to move away from the positioning pin (18).
4. A casting mould for solid sealed pole according to claim 3, wherein the rear end face of the guide rod (13) is provided with a threaded hole, and the bearing seat (17) is fixed at the rear end of the guide rod (13) through bolting.
5. The solid sealed pole casting die according to any one of claims 1 to 4, wherein the die-loading pushing surface and the demolding pushing surface are each arranged obliquely perpendicular to a plane of the positioning pin (18), and the pushing inclined surfaces (24) on the wedge blocks (12) are arranged obliquely in the corresponding directions so as to coincide with the corresponding die-loading pushing surface and demolding pushing surface.
6. The solid-sealed pole casting die according to any one of claims 1 to 4, wherein a middle portion and both ends of the plunger (14) are different in diameter in a guiding movement direction of the plunger (14).
7. The casting mold for the solid sealed pole according to claim 6, wherein the two ends of the collision block (14) along the axial direction of the guide rod (13) are provided with stop shaft shoulders (16), a holding part (15) is formed between the two stop shaft shoulders (16), and the diameter of the holding part (15) is smaller than that of the two stop shaft shoulders (16).
8. The solid sealed pole casting mold according to any one of claims 1 to 4, wherein the positioning pin (18) comprises a circular table section and a positioning matching section, the positioning matching section is a cylindrical section matched with the positioning pin hole, and the large-diameter end of the circular table section is connected with the outer end of the cylindrical section.
9. The solid sealed pole casting die according to any one of claims 1 to 4, wherein the wedge (12) has a thinned portion (20) having a thickness smaller than other portions, and the insertion arm is provided on the thinned portion (20).
10. The casting mold for solid sealed pole according to any one of claims 1 to 4, wherein the insertion hole (28) is a guiding hole for guiding and inserting the wedge block (12) and is used for guiding and matching with a flat supporting surface on the wedge block (12) and a side opposite to the flat supporting surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210161574.1A CN114678235B (en) | 2022-02-22 | 2022-02-22 | Solid-sealed polar pole casting mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210161574.1A CN114678235B (en) | 2022-02-22 | 2022-02-22 | Solid-sealed polar pole casting mold |
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| CN114678235B true CN114678235B (en) | 2023-09-22 |
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| US20210323142A1 (en) * | 2018-08-29 | 2021-10-21 | Wibemo S.A. | Gripper having an interchangeable head, and tool comprising same |
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| US4342974A (en) * | 1980-12-09 | 1982-08-03 | Matsushita Electric Works, Ltd. | Multipolar type circuit breaker |
| JPH06327223A (en) * | 1993-05-11 | 1994-11-25 | Shinko Electric Co Ltd | Pulse motor |
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| CN114678235A (en) | 2022-06-28 |
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