CN111014621B - Bus bar terminal one-step forming die, die manufacturing method and forming process - Google Patents
Bus bar terminal one-step forming die, die manufacturing method and forming process Download PDFInfo
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- CN111014621B CN111014621B CN202010015046.6A CN202010015046A CN111014621B CN 111014621 B CN111014621 B CN 111014621B CN 202010015046 A CN202010015046 A CN 202010015046A CN 111014621 B CN111014621 B CN 111014621B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000008569 process Effects 0.000 title claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims abstract description 96
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000005266 casting Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims description 46
- 238000003825 pressing Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 abstract description 11
- 230000006872 improvement Effects 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
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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
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/04—Casting metal electric battery plates or the like
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to the field of lead-acid battery manufacturing and processing, and particularly discloses a busbar terminal one-step forming die, a die manufacturing method and a forming process, wherein the die is characterized in that a cast-weld area is arranged at a pole hole, a terminal is positioned by utilizing the cast-weld area, then casting of a busbar and the pole is carried out, in the casting process, after lead liquid is poured into the pole hole, the pole formed after the lead liquid is cooled is directly connected with the terminal, the die manufacturing method is characterized in that the cast-weld area formed by combining a ceramic sleeve and a ceramic gasket is arranged at the bottom of the pole hole, the terminal is positioned by utilizing the cast-weld area, the terminal is directly cast-welded on the pole formed in the pole hole, meanwhile, the high-temperature resistance characteristic of the ceramic sleeve and the ceramic gasket is utilized to ensure the cold-heat balance in the cast-weld area, the forming process is characterized in that the cast-weld area formed by combining the ceramic sleeve and the ceramic gasket is arranged at the bottom of, when the pole hole is cast and formed into the pole, the pole is automatically connected with the terminal.
Description
Technical Field
The invention relates to the field of manufacturing and processing of lead-acid batteries, in particular to a bus bar terminal one-step forming die, a die manufacturing method and a forming process.
Background
In the process of processing lead-acid batteries, particularly power batteries used for vehicles, terminals need to be arranged on poles of lead busbars for conducting connection with the outside for charging and discharging, and in the process of processing lead-acid batteries, the connection mode of the terminals and the poles is divided into two types: one is that when the casting welding of the bus bar is completed on the polar ear of the battery polar group, the polar pole is directly and synchronously cast, and then the terminal is connected to the polar pole in a manual welding mode; in the other method, only the bus bar is cast and welded to the tab of the battery electrode group, and then the post with the terminal is cast by lead liquid through an auxiliary die, and then the post and the bus bar are welded.
The patent document with the patent number of CN201420809035.5 discloses a multipolar column type terminal welded structure, including setting up the terminal groove of covering in, the terminal inslot is provided with a plurality of utmost point post hole, and utmost point post passes utmost point post hole and stretches into the terminal inslot, and the binding post of arranging the terminal inslot in wears to adorn on utmost point post external diameter, is equipped with the round recess along utmost point post external diameter on the binding post, clamps the welding strip on the binding post between the two utmost point posts, and utmost point post and welding strip burn fill in the recess after melting, cover welding utmost point post and binding post, and it is exactly through mould casting busbar and utmost point post earlier, later welds with terminal and utmost point post again.
Patent No. CN201811246255.0 discloses a copper terminal post of lead-acid battery, a casting alloy and a manufacturing method thereof, which comprises a copper electrode, a plating alloy layer, and a casting alloy seat, wherein the lower part of the copper electrode is cast on the casting alloy seat, and the plating alloy layer is arranged on the outer side of the lower part of the copper electrode. The alloy used for the rack plating alloy layer arranged on the copper terminal pole of the lead-acid storage battery comprises lead and tin, and the weight ratio of the lead to the tin is as follows: 36 to 40 percent of lead and 60 to 64 percent of tin. The invention avoids the situation that the copper part of the pole has small torsion and is easy to loosen in the production and installation processes of the lead-acid storage battery, ensures the normal use and the service life of the battery, namely the pole with the terminal at the casting position is welded with the bus bar.
However, in the two modes, the terminal post is required to be welded again after being subjected to hot melting in the processing process, the size of the terminal post of the processed lead-acid battery has large errors, the consistency of the quality of the product is difficult to achieve, and if the terminal and the terminal post are directly connected in the process of pouring the busbar and the terminal post, the surface of the terminal is oxidized due to the high temperature of lead liquid, so that the quality of the produced battery is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a bus bar terminal one-step forming die which is characterized in that a positioning area is arranged in a pole hole, the terminal is positioned by the positioning area, then the bus bar and a pole are cast, in the casting process, after lead liquid is poured into the pole hole, the pole formed after the lead liquid is cooled is directly connected with the terminal, the pole casting and the terminal are completed at one step, and the technical problem of large size deviation after the pole and the terminal are formed is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a busbar terminal one shot forming mould, including the mould body and with a plurality of cooling tubes of the inside cooling runner intercommunication of mould body, set up a plurality of utmost point post holes of watering and symmetry setting on the terminal surface of mould body one side, utmost point post hole and adjacent establishing water and link to each other, the cooling tube is located respectively the both sides of cooling runner, the bottom in utmost point post hole all is provided with the locating area that is used for fixing a position the vertical terminal of placing, this locating area with correspond utmost point post hole intercommunication, when utmost point post hole pours lead liquid casting utmost point post, the fashioned utmost point post of casting with terminal an organic whole is connected.
As an improvement, the pole post hole penetrates through the die body, a positioning mechanism is arranged at the bottom of the pole post hole, and the positioning area for positioning the vertically placed terminal is formed in the positioning mechanism.
As an improvement, when the terminal is placed in the positioning region for positioning, the connecting end portion of the terminal protruding out of the positioning region is placed in the pole hole, and the diameter Φ 1 of the connecting end portion and the inner diameter Φ 2 of the corresponding pole hole satisfy the relationship: phi 1 is less than phi 2.
As an improvement, a first pouring area for pouring the pole is formed between the side wall of the connecting end portion and the pole column hole, and a second pouring area for pouring the pole is formed between the end face of the connecting end portion and the pole column hole.
As an improvement, the terminal is made of a conductive material, teeth are arranged on the side wall of the connecting end part on the terminal, and a plurality of salient points are arranged on the end face of the connecting end part on the terminal.
As an improvement, a sharp corner is arranged on the side wall of the connecting end part.
As an improvement, the positioning mechanism includes:
the ceramic sleeve is arranged in an annular shape and is embedded on the die body;
the ceramic gasket is in sealing and abutting joint with an opening of the side, far away from the pouring gate, of the ceramic sleeve to form the positioning area; and
and the pressing plate covers the outside of the ceramic gasket and is installed and connected on the die body.
As an improvement, the pressing plate and the die body are detachably arranged.
The die has the advantages that:
(1) according to the invention, the positioning area is arranged in the pole hole, the terminal is positioned by using the positioning area, then the busbar and the pole are cast, in the casting process, after lead liquid is poured into the pole hole, the pole formed after the lead liquid is cooled is directly connected with the terminal, the pole casting and the terminal are completed at one time, and the technical problem of large size deviation after the pole and the terminal are formed is solved;
(2) according to the invention, the positioning mechanism is arranged at the bottom of the pole hole, the positioning mechanism is utilized to form the positioning area, the positioning mechanism is formed by combining the high-temperature-resistant ceramic sleeve and the ceramic gasket, the high-temperature-resistant ceramic sleeve and the ceramic gasket can protect the terminal, the surface of the terminal can be prevented from being oxidized due to the high temperature of lead liquid, and the cleanness of the appearance of the terminal is ensured;
(3) according to the invention, the plurality of salient points are arranged on the end face of the terminal close to the pole column hole, and the salient points are deeply inserted into the pole column, so that the connection strength between the terminal and the pole column is enhanced, and the terminal and the pole column are not easy to fall off;
(4) according to the invention, the tooth is arranged on the side wall of the terminal close to the end part of the pole column hole, and the connection strength between the pole column and the terminal is enhanced by utilizing the occlusion between the tooth and the pole column, so that the connection between the terminal and the pole column is firmer;
(5) according to the invention, the side wall of the end part of the terminal close to the pole hole is arranged to form the included angle, and the terminal is matched with the pole, so that when the terminal is in threaded fit connection with an external wiring, the terminal and the pole are not easy to relatively rotate, and the strength and the safety performance are high.
Aiming at the problems, the invention provides a manufacturing method of a bus bar terminal one-step forming die, which is characterized in that a positioning area formed by combining a ceramic sleeve and a ceramic gasket is arranged at the bottom of a pole hole, the terminal is positioned and placed by using the positioning area, so that the terminal is directly cast-welded on the pole formed in the pole hole, meanwhile, the high-temperature resistance characteristic of the ceramic sleeve and the ceramic gasket is utilized to ensure the cold-heat balance in the positioning area, and the surface of the terminal cannot generate any high-temperature oxidation signs.
In order to achieve the purpose, the invention provides the following technical scheme:
a manufacturing method of a bus bar terminal one-step forming die comprises the following steps:
firstly, processing a pouring gate, namely carving a pouring gate for casting a busbar and a pole column hole for casting a pole column on one side end face of a square block-shaped die blank, wherein the pole column hole penetrates through the die blank to enable the die blank to be manufactured into a die body;
step two, processing a flow channel, namely processing the pouring channel and the pole column hole of the die body, and processing a cooling flow channel for cooling the pouring channel and the pole column hole in the die body;
embedding a ceramic sleeve, namely embedding an annular ceramic sleeve on the die body after the cooling runner is machined, so that the ceramic sleeve is positioned at the bottom of the pole column hole relative to the pouring channel;
step four, assembling a ceramic gasket, wherein the ceramic gasket is hermetically abutted and mounted at an opening on one side of the ceramic sleeve, which is far away from the pouring gate, so that a space in the ceramic sleeve forms a positioning area for placing a terminal;
step five, mounting a pressing plate, namely covering the pressing plate outside the ceramic gasket, mounting the pressing plate on the die body, and abutting the ceramic gasket on the ceramic sleeve; and
and step six, welding cooling pipes, namely welding the cooling pipes on two sides of the die body to enable the cooling pipes to be respectively communicated with the inlet and the outlet of the cooling runner.
The manufacturing method of the die has the advantages that:
(1) according to the invention, the positioning area formed by combining the ceramic sleeve and the ceramic gasket is arranged at the bottom of the pole hole, and the terminal is positioned and placed by using the positioning area, so that the terminal is directly cast-welded on the pole formed in the pole hole, and meanwhile, the high-temperature resistance characteristics of the ceramic sleeve and the ceramic gasket are utilized to ensure the cold-heat balance in the positioning area, the surface of the terminal cannot generate any high-temperature oxidation signs, and the production quality of the battery is ensured;
(2) according to the invention, the pressing plate for fixing the ceramic gasket is arranged on the die body in a detachable installation and connection mode, and when the ceramic sleeve and the ceramic gasket are damaged, the pressing plate can be detached for quick maintenance, so that the processing efficiency is ensured.
Aiming at the problems, the invention provides a bus bar terminal one-step forming process, which is characterized in that a positioning area formed by combining a ceramic sleeve and a ceramic gasket is arranged at the bottom of a pole hole, the terminal is positioned and placed by utilizing the positioning area, when the pole hole is cast and formed, the pole and the terminal are automatically connected, and the one-step forming is realized, so that the manual welding of the subsequent pole and the terminal is avoided, and the quality consistency of the produced battery is ensured.
In order to achieve the purpose, the invention provides the following technical scheme:
a bus bar terminal one-step forming process comprises the following steps:
placing a terminal, namely placing the terminal in a pole hole on a mould body, so that the terminal is vertically placed in a positioning area inside a ceramic sleeve at the bottom of the pole hole;
pressing in place, and enabling the lower end part of the terminal to abut against a ceramic gasket below the positioning area by pressing the terminal in the pole hole;
thirdly, containing lead liquid, placing the die body in a lead pan carrying the molten lead liquid, and pouring the lead liquid into a pouring channel and a pole hole on the die body;
step four, inserting batteries, taking the die body after the lead liquid is contained out of a lead pan, and inserting the battery shell fully inserted with the pole group into the corresponding runner in a mode that the pole lugs face downwards;
step five, cooling, wherein a cooling medium flows through a cooling flow channel in the die body from cooling pipes on two sides of the die body to cool the pouring channel and the lead liquid in the pole hole, at the moment, the lead liquid in the pouring channel is cooled to form a busbar, the busbar is connected with a pole lug, the lead liquid in the pole hole is cooled to form a pole, and the pole is connected with the terminal; and
and step six, demolding, namely vertically separating the battery shell upwards from the mold body after the lead liquid is cooled, so that the busbar, the pole and the terminal are separated from the mold body.
The forming process has the beneficial effects that:
(1) according to the invention, the positioning region formed by combining the ceramic sleeve and the ceramic gasket is arranged at the bottom of the pole hole, the terminal is positioned and placed by using the positioning region, and when the pole is cast and molded in the pole hole, the pole and the terminal are automatically connected and molded at one time, so that the subsequent manual welding of the pole and the terminal is avoided, and the quality consistency of the produced battery is ensured.
In conclusion, the invention has the advantages of good quality of the produced battery, high connection strength, high stability and the like, and is particularly suitable for the technical field of production and processing of lead-acid batteries.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top view of the mold body according to the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a schematic view of a connecting structure of a positioning mechanism and a mold body according to the present invention;
FIG. 6 is a schematic cross-sectional view of the positioning mechanism of the present invention;
FIG. 7 is a schematic bottom view of the die body according to the present invention;
FIG. 8 is a schematic view of a terminal and post connection structure according to the present invention;
FIG. 9 is a schematic diagram of a front view of the terminal of the present invention;
FIG. 10 is a first schematic perspective view of a terminal according to the present invention;
FIG. 11 is a schematic perspective view of a second terminal of the present invention;
FIG. 12 is a flow chart of a method for manufacturing a mold for molding a bus bar terminal in one step according to the present invention;
FIG. 13 is a flow chart of a one-step forming process of a bus bar terminal according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The first embodiment is as follows:
as shown in fig. 1 to 4, a busbar terminal one-step forming die comprises a die body 1 and a plurality of cooling pipes 2 communicated with a cooling flow channel 11 inside the die body 1, a plurality of pouring channels 12 and pole holes 13 symmetrically arranged are formed in the end face of one side of the die body 1, the pole holes 13 are connected with the adjacent pouring channels 12, the cooling pipes 2 are respectively located on two sides of the cooling flow channel 11, positioning areas 31 used for positioning vertically placed terminals 30 are arranged at the bottoms of the pole holes 13, the positioning areas 31 are communicated with the pole holes 13 correspondingly, and when the pole holes 13 are filled with lead liquid casting poles, the cast poles are integrally connected with the terminals 30.
Further, when the terminal 30 is placed in the positioning region 31 for positioning, the terminal 30 protrudes from the connection end 300 of the positioning region 31 and is placed in the pole post hole 13, and the diameter Φ 1 of the connection end 300 and the inner diameter Φ 2 of the corresponding pole post hole 13 satisfy the relationship: phi 1 is less than phi 2.
Furthermore, a first casting area 131 for casting the pole is formed between the side wall of the connecting end 300 and the pole hole 13, and a second casting area 132 for casting the pole is formed between the end face of the connecting end 300 and the pole hole 13.
It should be noted that, by providing the positioning area 31 at the bottom of the tapered post hole 13, positioning and placing the terminal 30 by using the positioning area 31, and then pouring the lead liquid into the pouring gate 12 and the post hole 13, the lead liquid in the post hole 13 will be poured into the first pouring area 131 and the second pouring area 132, the cooling medium flowing in the cooling channel 11 cools the lead liquid to form a bus bar 121 for the lead liquid in the pouring channel 12, and the lead liquid in the pole hole 13 forms a pole 130, in the process of forming the pole 130, the terminal 30 and the pole 130 are directly connected in one step without adding extra steps, the size deviation after the welding of the terminal and the pole mentioned in the comparison document can not occur, and the condition that the terminal and the pole have insufficient solder and missing solder in the welding process can not occur, and one end of the terminal 30, which is not connected with the pole 130, is provided with a threaded hole 304 connected with an external power line.
Example two:
FIG. 5 is a schematic structural view of a second embodiment of a one-step forming mold for bus bar terminals according to the present invention; as shown in fig. 5, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment shown in fig. 1 in that:
as shown in fig. 4 and 6, the post hole 13 is disposed through the mold body 1, a positioning mechanism 3 is disposed at the bottom of the post hole 13, and the positioning region 31 for positioning the vertically disposed terminal 30 is formed in the positioning mechanism 3.
When the terminal 30 is placed in the positioning area 31 for positioning, the terminal 30 protrudes out of the connecting end 300 of the positioning area 31 and is placed in the pole post hole 13, and the diameter Φ 1 of the connecting end 300 and the inner diameter Φ 2 of the corresponding pole post hole 13 satisfy the relationship: phi 1 is less than phi 2.
Further, a first casting area 131 for casting the pole is formed between the side wall of the connecting end portion 300 and the pole hole 13, and a second casting area 132 for casting the pole is formed between the end face of the connecting end portion 300 and the pole hole 13.
Further, the positioning mechanism 3 includes:
the ceramic sleeve 32 is arranged in an annular shape, and the ceramic sleeve 32 is embedded on the die body 1;
a ceramic gasket 33, wherein the ceramic gasket 33 is sealed and abutted against an opening of the ceramic sleeve 32 on the side far away from the pouring gate 12 to form the positioning area 31; and
and the pressure plate 34 covers the outside of the ceramic gasket 33, and is installed and connected on the die body 1.
It should be noted that, the terminal 30 is directly disposed in the positioning region 31 by disposing the positioning region 31 at the bottom of the terminal hole 13, and then the terminal 30 is connected to the terminal 30 by pouring a lead solution into the terminal hole 13 and cooling the lead solution, so that the lead solution is transferred to the mold body 1 at a high temperature of 450 ℃and then conducted to the terminal 30, and thus the surface of the terminal 30 is seriously oxidized, the oxidized layer may affect the beauty of the terminal 30, and the conductivity of the terminal is also affected.
Further, it is described that, after the mold body 1 enters the lead pan and fills the lead liquid into the post hole 13, the mold body 1 leaves the lead pan, the time for the mold body 1 to be immersed in the lead liquid in the lead pan is about 10 to 20s, and then the cooling medium is introduced into the cooling flow channel 11 in the mold body 1 for cooling, so that the filled lead liquid in the post hole 13 cannot conduct a large amount of heat to the terminal in a short time, and the influence on the high-temperature oxidation of the terminal is basically negligible, but in the time for the mold body 1 to be immersed in the lead pan, the lead liquid in the lead pan wraps the mold body 1, the heat of the lead liquid is conducted to the mold body 1 in a large amount and rapidly, and the mold body 1 easily conducts the heat to the terminal 30 in the positioning region.
Therefore, the positioning area 31 is formed in the ceramic sleeve 32 by combining the ceramic sleeve 32 and the ceramic gasket 33, and the terminal 30 in the positioning area 31 is not influenced by the temperature conduction of the die body 1 by utilizing the characteristics of high temperature resistance and good temperature isolation of the ceramic sleeve 32 and the ceramic gasket 33, so that the terminal 30 is prevented from being oxidized by high temperature, the cast pole is firmly connected with the terminal 30, the electric conductivity is excellent, and the surface of the terminal 30 is bright as new.
Example three:
FIG. 7 is a schematic structural view of a third embodiment of a one-step forming mold for bus bar terminals according to the present invention; as shown in fig. 7, in which the same or corresponding components as those in embodiment two are denoted by the same reference numerals as those in embodiment two, only the points of difference from embodiment two will be described below for the sake of convenience. The third embodiment is different from the second embodiment shown in fig. 5 in that:
as shown in fig. 7, the pressing plate 34 is detachably mounted to the mold body 1.
It should be noted that the ceramic sleeve 32 and the ceramic gasket 33 are made of ceramic, and are inevitably cracked during use, and in order to facilitate maintenance and repair, the pressing plate 34 for fixing the ceramic sleeve 32 and the ceramic gasket 33 is installed and connected with the mold body 1 in a threaded fit manner, so that the pressing plate 34 can be rapidly detached.
Example four:
FIG. 8 is a schematic structural view of a fourth embodiment of a one-step forming mold for bus bar terminals according to the present invention; as shown in fig. 8, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The fourth embodiment is different from the first embodiment shown in fig. 1 in that:
as shown in fig. 8 to 10, the terminal 30 is made of a conductive material, and teeth 302 are provided on a side wall of the connection end 300, and a plurality of protrusions 301 are provided on an end surface of the connection end 300.
In the present invention, the protruding point 301 is provided at the end of the terminal 30 connected to the post, and the protruding point 301 protrudes into the post, thereby increasing the connection strength between the terminal 30 and the post, and the tooth 302 is provided at the end of the terminal 30 connected to the post, thereby engaging with the post via the tooth 302, thereby increasing the connection strength between the terminal 30 and the post.
Example five:
fig. 11 is a schematic structural view of a fifth embodiment of a one-step forming mold for a bus bar terminal according to the present invention; as shown in fig. 11, in which the same or corresponding components as those in embodiment five are denoted by the same reference numerals as those in embodiment four, only the points different from embodiment four will be described below for the sake of convenience. The fifth embodiment is different from the fourth embodiment shown in fig. 7 in that:
as shown in FIG. 11, the connecting end 300 is provided with a sharp corner 310 on the sidewall.
It should be noted that, the positioning region 31 of the present invention is a cylindrical region, the end of the terminal 30 located at the bottom of the positioning region 31 is a cylindrical region, and the connection end 300 of the terminal 30 connected to the post is preferably a linear cylindrical structure, a sharp corner 310 is formed on the side wall of the connection end 300, the thickness of the sharp corner is smaller than the diameter of the cylindrical end, and the cylindrical structure can enable the terminal 30 to be connected to an external power line through the sharp corner 310, so that when the terminal rotates, the terminal and the post do not disengage from each other by relative rotation, and lead liquid in the post hole 13 can penetrate through the notch 303 of the linear structure to the position where the tooth 302 is provided, so that the lead liquid covers the outside of the tooth 302, and the terminal and the post are connected.
It should be further noted that the structure of the terminal 30 at the end connected to the post is not limited to a straight-column structure, and may also be a polygonal prism structure.
Example six:
a method for manufacturing a bus bar terminal one-shot forming die of the present invention is described with reference to embodiments one to five.
As shown in fig. 12, a method for manufacturing a bus bar terminal one-time molding die includes the steps of:
firstly, processing a pouring gate, namely carving a pouring gate 12 for casting a busbar 121 and a pole column hole 13 for casting a pole column 130 on one side end face of a square block-shaped die blank, wherein the pole column hole 13 penetrates through the die blank to be arranged, so that the die blank is manufactured into a die body 1;
step two, processing a flow channel, namely processing the pouring channel 12 and the pole column hole 13 of the die body 1, and processing a cooling flow channel 11 for cooling the pouring channel 12 and the pole column hole 13 in the die body;
thirdly, embedding a ceramic sleeve, namely embedding an annular ceramic sleeve 32 into the die body 1 after the cooling runner 11 is machined, so that the ceramic sleeve 32 is positioned at the bottom of the pole column hole 13 relative to the pouring channel 12;
step four, assembling a ceramic gasket, namely, sealing and abutting against a mounting ceramic gasket 33 at an opening of one side of the ceramic sleeve 32, which is far away from the pouring gate 12, so that a positioning area 31 for placing the terminal 30 is formed in a space in the ceramic sleeve 32;
step five, mounting a pressure plate, namely covering the pressure plate 34 outside the ceramic gasket 33, and mounting the pressure plate 34 on the die body 1 to enable the ceramic gasket 33 to abut against the ceramic sleeve 32; and
welding cooling pipes, namely welding the cooling pipes 2 on two sides of the die body 1 to enable the cooling pipes 2 to be respectively communicated with an inlet and an outlet of the cooling runner 11.
It should be noted that, when the mold of the present invention is used for pouring a busbar and a terminal of a lead-acid battery, the terminal 30 is directly placed in the positioning region 31 at the bottom of the pole hole 13, and when lead liquid enters the pole hole 13 for pole pouring, the terminal 30 is directly covered and connected by the terminal formed by the lead liquid, and is directly formed in one step.
Further, after the post hole 13 penetrates through the die body 1, the ceramic sleeve 32 is embedded at the bottom of the post hole 13 and is sealed by matching with the ceramic gasket 33, so that a heat-insulating positioning area 31 is formed in the space inside the ceramic sleeve 32, the terminal 30 is placed by using the positioning area 31, the terminal 30 is prevented from being oxidized by the high temperature of lead liquid conducted to the die body 1, and the brightness of the part of the terminal exposed outside the post is ensured to be as new.
It is further described that, a first step 14 protrudes outwards from a position on the die body 1 for embedding the ceramic sleeve 32, the first step 14 is in abutting sealing arrangement with the ceramic sleeve 32, a second step 15 is recessed inwards from a position on the die body 1 for installing the pressing plate 34, the second step 15 is in abutting sealing arrangement with the pressing plate 34, a protrusion 341 is arranged at a position where the pressing plate 34 and the ceramic gasket 33 are in covering fit, and the protrusion 341 abuts against the ceramic gasket 33.
Example seven:
a one-step forming process of a bus bar terminal according to the present invention is described with reference to the first to fifth embodiments.
As shown in fig. 13, a one-step molding process of a bus bar terminal includes the following steps:
step one, a terminal is placed, the terminal 30 is placed in a pole column hole 13 on a die body 1, and the terminal 30 is vertically placed in a positioning area 31 inside a ceramic sleeve 32 at the bottom of the pole column hole 13;
pressing in place, and pressing the terminal 30 in the pole column hole 13 to enable the lower end part of the terminal 30 to abut against a ceramic gasket 33 below the positioning area 31;
thirdly, containing lead liquid, placing the die body 1 in a lead pan carrying the molten lead liquid, and pouring the lead liquid into a pouring gate 12 and a pole hole 13 on the die body 1;
step four, battery insertion, namely taking the die body 1 after the lead liquid is contained out of a lead pan, and inserting the battery shell fully inserted with the pole group into the corresponding runner 12 in a mode that the pole lug faces downwards;
step five, cooling, wherein a cooling medium flows through a cooling flow channel 11 in the die body 1 from the cooling pipes 2 on two sides of the die body 1 to cool the molten lead in the pouring channel 12 and the pole hole 13, at this time, the molten lead in the pouring channel 12 is cooled to form a busbar, the busbar is connected with a pole lug, the molten lead in the pole hole 13 is cooled to form a pole, and the pole lug is connected with the terminal 30; and
and step six, demolding, namely after the lead liquid is cooled, vertically and upwards separating the battery shell from the mold body 1, so that the busbar, the pole and the terminal 30 are separated from the mold body 1.
It should be noted that, when the mold of the present invention is used for pouring a busbar and a terminal of a lead-acid battery, directly in the step one, the terminal 30 is placed in the positioning region 31 at the bottom of the terminal hole 13, and when lead liquid enters the terminal hole 13 for pouring the terminal, the terminal 30 is directly covered and connected by the lead liquid-molded terminal, and is directly molded in one step.
Further, in the third step, the mold body 1 is immersed in the lead pan, when the lead liquid is taken, the lead liquid is poured into the pouring gate 12 and the pole hole 13, the temperature of the lead liquid in the lead pan can influence the mold body 1, and the temperature is rapidly increased, and the ceramic sleeve 32 and the ceramic gasket 33 outside the positioning region 31 can perform heat insulation treatment on the positioning region 31, so that the temperature increased by the mold body 1 is prevented from being transmitted to the terminal 30 in the positioning region 31, and the terminal 30 is prevented from being oxidized at a high temperature.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a busbar terminal one shot forming mould, including mould body (1) and with a plurality of cooling tube (2) of cooling runner (11) intercommunication inside mould body (1), set up a plurality of polar post hole (13) of watering (12) and symmetry setting on the terminal surface of mould body (1) one side, polar post hole (13) with adjacent establishing water (12) link to each other, cooling tube (2) are located respectively the both sides of cooling runner (11), its characterized in that, the bottom of polar post hole (13) all is provided with the locating area (31) that are used for fixing a position vertically placed terminal (30), this locating area (31) with correspond polar post hole (13) intercommunication, when polar post hole (13) pours the lead liquid casting utmost point post, the fashioned utmost point post of casting with terminal (30) an organic whole is connected, polar post hole (13) run through mould body (1) sets up, the bottom of the pole column hole (13) is provided with a positioning mechanism (3), a positioning area (31) for positioning a vertically placed terminal (30) is formed in the positioning mechanism (3), the positioning mechanism (3) comprises a ceramic sleeve (32), a ceramic gasket (33) and a pressing plate (34), and the ceramic sleeve (32) is annularly arranged and embedded on the die body (1); the ceramic gasket (33) is sealed and abutted against an opening of the ceramic sleeve (32) on the side away from the pouring channel (12) to form the positioning area (31); the pressing plate (34) covers the outside of the ceramic gasket (33) and is installed and connected to the die body (1).
2. The bus bar terminal one-time forming die of claim 1, wherein when the terminal (30) is placed in the positioning region (31) for positioning, a connecting end portion (300) of the terminal (30) protruding out of the positioning region (31) is placed in the pole hole (13), and a diameter Φ 1 of the connecting end portion (300) and an inner diameter Φ 2 of the corresponding pole hole (13) satisfy a relationship: phi 1 is less than phi 2.
3. The bus bar terminal one-time molding die as claimed in claim 2, wherein a first casting area (131) for casting a pole is formed between the side wall of the connecting end portion (300) and the pole hole (13), and a second casting area (132) for casting a pole is formed between the end surface of the connecting end portion (300) and the pole hole (13).
4. The bus bar terminal one-shot forming mold according to claim 2, wherein the terminal (30) is made of a conductive material, on which teeth (302) are provided on a side wall of the connecting end portion (300), and on which a plurality of protrusions (301) are provided on an end surface of the connecting end portion (300).
5. The bus bar terminal one-shot forming mold as claimed in claim 2, wherein a sharp corner (310) is provided on a side wall of the connection end portion (300).
6. The bus bar terminal one-shot forming mold according to claim 1, wherein the pressing plate (34) is detachably installed to the mold body (1).
7. The manufacturing method of the one-step forming die for the bus bar terminal is characterized by comprising the following steps of:
firstly, processing a pouring channel, namely carving a pouring channel (12) for casting a busbar (121) and a pole column hole (13) for casting a pole column (131) on one side end face of a square block-shaped die blank, wherein the pole column hole (13) penetrates through the die blank to be arranged, so that the die blank is manufactured into a die body (1);
step two, processing a flow channel, namely processing the pouring channel (12) and the polar column hole (13) of the die body (1), and processing a cooling flow channel (11) for cooling the pouring channel (12) and the polar column hole (13) in the die body;
embedding a ceramic sleeve, namely embedding an annular ceramic sleeve (32) into the die body (1) after the cooling runner (11) is machined, so that the ceramic sleeve (32) is positioned at the bottom of the pole column hole (13) relative to the pouring channel (12);
step four, assembling a ceramic gasket, namely sealing and abutting against and installing the ceramic gasket (33) at an opening of one side of the ceramic sleeve (32) far away from the pouring channel (12), so that a space in the ceramic sleeve (32) forms a positioning area (31) for placing a terminal (30);
step five, mounting a pressure plate, covering the pressure plate (34) outside the ceramic gasket (33), mounting the pressure plate (34) on the die body (1) and abutting the ceramic gasket (33) against the ceramic sleeve (32); and
and step six, welding cooling pipes, namely welding the cooling pipes (2) on two sides of the die body (1) to enable the cooling pipes (2) to be respectively communicated with an inlet and an outlet of the cooling runner (11).
8. The one-step forming process of the bus bar terminal is characterized by comprising the following steps of:
putting a terminal, namely putting the terminal (30) in a pole column hole (13) on a die body (1) to vertically place the terminal (30) in a positioning area (31) in a ceramic sleeve (32) at the bottom of the pole column hole (13);
pressing in place, and pressing the terminal (30) in the pole column hole (13) to enable the lower end part of the terminal (30) to abut against a ceramic gasket (33) below the positioning area (31);
thirdly, containing lead liquid, placing the die body (1) in a lead pan carrying the molten lead liquid, and pouring the lead liquid into a pouring gate (12) and a pole hole (13) on the die body (1);
step four, inserting batteries, taking the die body (1) which finishes containing the lead liquid out of a lead pan, and inserting the battery shell which is fully inserted with the pole group into the corresponding pouring channel (12) in a mode that the pole lug faces downwards;
step five, cooling, wherein a cooling medium flows through a cooling flow channel (11) in the die body (1) from cooling pipes (2) on two sides of the die body (1) to cool the lead liquid in the pouring channel (12) and a pole column hole (13), at the moment, the lead liquid in the pouring channel (12) is cooled to form a busbar, the busbar is connected with a pole lug, the lead liquid in the pole column hole (13) is cooled to form a pole column, and the pole column is connected with the terminal (30); and
and step six, demolding, namely after the lead liquid is cooled, vertically and upwards separating the battery shell from the mold body (1) so as to separate the busbar, the pole and the terminal (30) from the mold body (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015046.6A CN111014621B (en) | 2020-01-07 | 2020-01-07 | Bus bar terminal one-step forming die, die manufacturing method and forming process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010015046.6A CN111014621B (en) | 2020-01-07 | 2020-01-07 | Bus bar terminal one-step forming die, die manufacturing method and forming process |
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| CN111014621B true CN111014621B (en) | 2020-11-20 |
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| JP2007167907A (en) * | 2005-12-22 | 2007-07-05 | Shin Kobe Techno Service Kk | Method for producing lead component for lead storage battery |
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| CN111014621A (en) | 2020-04-17 |
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