CN114211911A - Balance block, mold for manufacturing balance block, core installing machine, automatic core installing machine and method - Google Patents
Balance block, mold for manufacturing balance block, core installing machine, automatic core installing machine and method Download PDFInfo
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- CN114211911A CN114211911A CN202111582243.7A CN202111582243A CN114211911A CN 114211911 A CN114211911 A CN 114211911A CN 202111582243 A CN202111582243 A CN 202111582243A CN 114211911 A CN114211911 A CN 114211911A
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- 238000000034 method Methods 0.000 title claims description 35
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 46
- 238000004512 die casting Methods 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 22
- 238000005266 casting Methods 0.000 claims description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 229910052725 zinc Inorganic materials 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
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- 229910000978 Pb alloy Inorganic materials 0.000 claims description 4
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000010923 batch production Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 2
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- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
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- 239000004593 Epoxy Substances 0.000 description 1
- 244000261422 Lysimachia clethroides Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B15/00—Wheels or wheel attachments designed for increasing traction
- B60B15/28—Wheel-ballasting weights; Their attachment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/131—Vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/20—Avoidance of
- B60B2900/212—Damage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/331—Safety or security
- B60B2900/3312—Safety or security during regular use
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a balance block, a balance block manufacturing method and a system for manufacturing the balance block, which aim to solve the problems that the existing balance block structure is not suitable for batch production and has poor production capacity. The balance weight includes: a block and a core. The block body is provided with a mounting hole extending along a straight line; the core body is made of a material capable of being adsorbed by a magnet, the size of the core body is matched with that of the mounting hole, and the core body is wholly or partially inserted into the mounting hole through stamping. The structure of the balance block can effectively protect the core body from being rusted, is suitable for batch production, and can improve the manufacturing efficiency and the production capacity of the balance block. In addition, the balance weight manufacturing method and the balance weight manufacturing system can realize batch production of the balance weight. In addition, the mold design of the balance block is relatively simple, and the balance block can be produced and manufactured under the condition of the conventional equipment.
Description
Technical Field
The invention relates to the field of vehicle balance blocks, in particular to a balance block, a mold for manufacturing the balance block, a core installing machine, an automatic core installing machine and a method.
Background
The function of the balancing weight is to add proper balancing weight at the position of smaller total mass of the wheel tyre, so that the balancing weight can keep dynamic balance under high-speed rotation. The mass of each part of any object is different, the mass unevenness affects the stability of the rotation under static state and low-speed rotation, and the vibration is larger when the rotation speed is higher. If the quality of the automobile wheel and tire assembly is not uniform, the riding comfort is influenced, abnormal abrasion of automobile tires and a suspension system is increased, the control difficulty of the automobile in the driving process is increased, and the driving safety is further influenced in the high-speed driving process. In order to avoid the situation, after the assembly of the wheel and the tire is finished, a special device, namely a dynamic balancing machine of the wheel and the tire, is required to perform a dynamic balancing test, and a proper balance weight is added at the position with smaller mass of the wheel and tire assembly to keep the dynamic balance under high-speed rotation, wherein the balance weight is a wheel balancing weight. The existing wheel balancing weight is mostly made of zinc alloy or lead alloy, and an iron core with a certain volume is required to be contained in the balancing weight to ensure that the balancing weight has enough sucked force; however, the existing balance block structure is not suitable for mass production, and the production capacity is poor, so that the balance block, the die for manufacturing the balance block, the core installing machine, the automatic core installing machine and the method are needed to solve the problems.
Disclosure of Invention
In view of the defects of the prior art, the invention provides a balance block, a mold for manufacturing the balance block, a core assembling machine, an automatic core assembling machine and a method, so as to solve the problems that the existing balance block structure is not suitable for batch production and has poor production capacity.
To achieve the above and other related objects, the present invention provides a weight, comprising: a block and a core. The block body is provided with a mounting hole extending along a straight line; the core body is made of a material capable of being adsorbed by a magnet, the size of the core body is matched with that of the mounting hole, and the core body is wholly or partially inserted into the mounting hole through stamping.
In an example of the weight of the present invention, the material of the block is any one of zinc, zinc alloy, lead and lead alloy.
In an example of the counterweight of the present invention, the core is made of iron or stainless steel.
In an example of the balance block of the present invention, the mounting hole is a circular hole, and the core is a cylinder; the end part of the core body is provided with a conical surface for guiding the core body to enter the mounting hole.
In one example of the balance block, the end of the core body is recessed into the mounting hole by 0.1-0.25 mm, and an anti-corrosion material layer is arranged on the exposed surfaces of the block body and the core body.
In an example of the weight of the present invention, the block is made by a die-casting process, and the mounting hole is integrally formed during the die-casting process.
The invention also provides a die for manufacturing the block, which comprises: the core mold comprises an upper casting mold, a lower casting mold, a core-pulling core and a core-pressing core mold driving device. The upper casting die is arranged on an upper workbench of a die casting machine, and a pouring gate is arranged on the upper casting die; the lower casting die is arranged on a lower workbench of the die casting machine and forms at least one block body cavity communicated with the sprue after being matched with the upper casting die; the core-pulling core can be linearly and movably arranged at the side of the lower casting mold and can extend to a set position in the block-shaped cavity; and a core driving device for driving the core pulling core to be inserted into the set position or separated from the set position.
In an example of the mold according to the present invention, the mold further includes a sprue, a vertically extending conical runner is disposed below the gate of the upper casting mold, a large end of the conical runner faces the lower casting mold, and a small end of the sprue is disposed on the lower casting mold and coaxial with the conical runner.
In an example of the mold of the present invention, a push rod for ejecting the corresponding block out of the block cavity during demolding is further disposed on the mold at a position corresponding to the block cavity. Core mould is pushed down to push down core mould pushes down core mould
The invention also provides a core loading machine, which comprises a pressure providing device and a core loading mould, wherein the core loading mould comprises: the upper pressing core die, the lower pressing core die and the guide structure are arranged on the upper die; the upper pressing core mold is provided with a pressing head matched with the core body; the downward pressing core mold is provided with a block body mounting part capable of fixing a block body; the guide structure is arranged between the upper core pressing die and the lower core pressing die and provides guide for the relative movement between the upper core pressing die and the lower core pressing die; the upper core pressing die is mounted on an upper workbench of the pressure providing device, the lower core pressing die is mounted on a lower workbench of the pressure providing device, and the upper workbench and/or the lower workbench move oppositely under the action of the pressure providing device so as to press-fit the core body into the mounting hole in the block body.
The present invention also provides an automatic core loading apparatus, comprising: the device comprises a conveying disc, an upper block body device, a lower core body device, a pressure providing device and a lower balance block device. The conveying disc is used for conveying the blocks and the core bodies; the upper block device is used for placing blocks to a specified position on the conveying disc; the lower core device is arranged around the conveying disc, and the core is preliminarily inserted into the mounting hole in the block body; the pressure providing device is arranged around the conveying disc and presses the core body into the mounting hole when the block body carrying the core body is conveyed to a set position; and the lower balance weight device is used for taking down the pressed balance weight from the conveying disc.
Pressing core mould
The invention also provides a manufacturing method of the balance block, which comprises the following steps:
s1: manufacturing a block body through a die-casting process, and forming a mounting hole in the block body;
s2: stamping the core into the mounting hole.
In an example of the weight producing method of the present invention, the die-casting process in step S1 includes:
s11: closing the mold;
s12: pushing the core-pulling core into a position in the block cavity;
s13, filling the block cavity with the melted liquid;
s14, cooling;
s15, extracting the core-pulling core;
and S16, demolding.
In an example of the weight producing method of the present invention, the core is pressed into the mounting hole by pressing down the core mold in step S2.
In an example of the method for manufacturing the balance block, in the die-casting process of step S1, the block is made of zinc, and in the die-casting process, the injection pressure of the molten zinc is 50-100 bar, the injection speed is 65-85%, and the nozzle temperature is 400-450 ℃; the pressurizing time is 0.8-2.0 s, and the cooling time is 1.0-2.5 s.
The structure of the balance block can effectively protect the core body from being rusted, is suitable for batch production, and can improve the manufacturing efficiency and the production capacity of the balance block. In addition, the balance weight manufacturing method and the balance weight manufacturing system can realize batch production of the balance weight. In addition, the mold of the balance block is relatively simple in design, and can be produced and manufactured under the equipment conditions of the conventional die casting machine and the conventional core mold pressing device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a counterweight according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged partial view of the recessed mounting hole of the core;
FIG. 4 is a schematic view of a mounting hole in a block;
FIG. 5 is a cross-sectional view of a block die casting mold;
FIG. 6 is a top view of the block die casting mold;
FIG. 7 is a cross-sectional view of a core-loading mold;
FIG. 8 is a schematic structural view of an automatic core loader according to the present invention;
FIG. 9 is a flow chart of a method of making a weight according to the present invention.
Description of the element reference numerals
100. A counterbalance; 110. a block body; 111. a cylindrical bore; 112. a taper hole; 120. a core body; 103. a hook body; 200. a mold; 210. casting a mold; 211. a gate; 212. a conical surface flow channel; 220. a lower casting mould; 221. a block cavity; 230. a push rod; 240. a spreader cone; 250. a core-pulling core; 260. a core drive; 300. installing a core mould; a lower core pressing die 310 and an upper core pressing die; 320. a pressure head; 340. a movable female die; 350. a guide structure; 360. a core guide portion; 370. pressing the core mold; 400. automatic core loading equipment; 410. an upper block device; 420. a transfer tray; 430. a lower core device; 440. a lower balance block device; 450. a pressure providing device.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description only, and are not intended to limit the scope of the invention, and that changes or modifications in the relative relationship may be made without substantial technical changes and modifications.
Referring to fig. 1 to 4, the present invention provides a balance weight 100, wherein the structure of the balance weight 100 not only can effectively protect the core 120 from corrosion, but also is suitable for mass production, and can improve the manufacturing efficiency and the production capacity of the balance weight 100, and can effectively solve the problem that the conventional balance weight 100 is not suitable for mass production and has poor production capacity.
Referring to fig. 2, the weight 100 includes: a block 110 and a core 120. The shape of the block 110 is not particularly limited, and may be, for example, the same or similar to the shape of the weight 100 used in the existing vehicle, but may be other different shapes for facilitating the installation, and the block 110 is provided with a mounting hole extending along a straight line for facilitating the insertion of the core 120 into the mounting hole by punching. The shape and size of the core body 120 match those of the mounting hole and can be fully press-inserted into the mounting hole by the pressing core die 300, but it will be understood by those skilled in the art that only a part of the core body may be inserted into the mounting hole and a part of the core body may be exposed outside the mounting hole, if necessary, but this arrangement is not favorable for the post-process and the corrosion-proof treatment. In order to ensure that the weight 100 is attracted sufficiently, the core 120 is made of a material that can be attracted by a magnet, such as iron, stainless steel, etc., but may be made of other materials that can be attracted by a magnet, for example.
The mass 110 of the present invention may be in the form of any weight material suitable for weight gain and corrosion resistance, such as an alloy formed from any one or more of zinc, zinc alloy, lead, and lead alloy. In this embodiment, the material of the block 110 is zinc, and the zinc has a small crystallization temperature range and a low melting point, so that filling and molding are easy and loosening is not easily generated in the die casting process.
In an example of the weight 100 of the present invention, the mass 110 is formed by a die-casting process, and the mounting hole is integrally formed during the die-casting process. The mounting hole may be any suitable hole shape that can extend along a straight line for the core 120 to be inserted along a straight line, such as a circular hole, a square hole, an elliptical hole, or a star-shaped hole, or other holes with uniform cross section, which are not mentioned, and in an example of the weight 100 of the present invention, the mounting hole is a circular hole, and the core 120 is a cylinder; the end of the core body 120 is provided with a conical surface for guiding the core body 120 to enter the mounting hole, the mounting hole is a circular hole 111, and the bottom of the circular hole is provided with a conical hole 112 matched with the conical surface. However, as will be understood by those skilled in the art, the bottom of the mounting hole may not be provided with a taper hole, but in this case, the taper surface and the mounting are in clearance fit, so that more air remains may be left, which is not favorable for later rust prevention.
Referring to fig. 3, in an example of the counterweight 100 of the present invention, the depth t of the end portion of the core 120 recessed into the mounting hole is 0.1-0.25 mm, and the exposed surfaces of the block 110 and the core 120 are provided with a corrosion-resistant material layer, which may be, for example, an epoxy layer. The size setting can not only meet the process requirement of stamping, but also be convenient for the surface of the core body 120 and the surface of the block body 110 to form a whole after the anti-corrosion material layer is coated in the later period, and can reduce the cracking and separation of the surface coatings of the core body 120 and the block body 110 caused by vibration in the later period, and prevent air from entering from cracks, thereby rusting the contact surface of the core body 120 and the block body 110.
Referring to fig. 5 to 6, the invention further provides a die 200 for die-casting the block, the die 200 includes an upper die 210, a lower die 220, a core-pulling core 250 and a core driving device 260, the upper die 210 and the lower die 220 are combined to form a block cavity 221 for molding the block 110, the upper die 210 is provided with a gate 211, the number of the core-pulling cores 250 may be one, two or more, specifically determined by the number of the blocks 110 formed at one time and/or the number of the cores 120 mounted on each block 110, in this embodiment, the die-casting die simultaneously samples the two rows of the block cavities 221 on the left and right, and can simultaneously process a plurality of blocks 110; the core cores 250 are therefore also divided into two groups, which are respectively distributed on both sides of the injection molding tool in correspondence with the mounting holes on each block 110, and the core cores 250 are pushed in and pulled out by themselves under the action of the core driving device 260. The core driving means 260 of the present invention may be any suitable driving means capable of being driven to reciprocate along a straight line, such as an oil cylinder, an air cylinder, etc., and an oil cylinder is used in this embodiment.
In an example of the mold of the present invention, the mold 200 further includes a diverging cone 240, a vertically extending tapered runner 212 is disposed below the gate 211 of the upper mold 210, a large end of the tapered runner 212 faces the lower mold 220, and a small end of the diverging cone faces upward and is disposed on the lower mold 220 and coaxial with the tapered runner 212. In an example of the mold of the present invention, a push rod 230 for ejecting the corresponding block out of the block cavity during demolding is further disposed on the lower mold 220 at a position corresponding to the block cavity 221.
Referring to fig. 7, the present invention further provides a core loader, which includes a pressure providing device and a core loading mold 300, wherein the core loading mold 300 includes: an upper core pressing die 310, a lower core pressing die 370 and a guide structure 350; the upper core pressing die 310 is provided with a pressing head 320 matched with the core body 120; the press-down core mold 370 is provided with a block mounting portion (not shown) capable of fixing the block 110; the guide structure 350 is disposed between the upper core pressing mold 310 and the lower core pressing mold 370 and provides a guide for the relative movement between the upper core pressing mold 310 and the lower core pressing mold 370, and the guide structure 350 is a wedge in this embodiment; wherein the upper press core die 310 is mounted on an upper table of the pressure providing device (not shown), the lower press core die 370 is mounted on a lower table of the pressure providing device, and the upper table and/or the lower table are moved toward each other by the pressure providing device to press-fit the core body into the mounting hole on the block. The pressure providing device can be any suitable device capable of providing pressure to press the core body into the mounting hole, such as a press, a downward-pressing core mold and the like, the core body can be installed in a forward mode or a reverse mode, the mounting hole in the block body faces upwards when the core body is installed in the forward mode, the core body moves under the action of the pressure and is inserted into the mounting hole from top to bottom, the mounting hole in the block body faces downwards when the core body is installed in the reverse mode, and the core body moves under the action of the pressure and is inserted into the mounting hole from bottom to top.
Referring to fig. 7 in detail, the block mounting portion of the downward pressing core mold in the present invention may be any suitable structure that enables the block 110 to be stably mounted on the downward pressing core mold 370, in this embodiment, the downward pressing core mold 370 is provided with a movable female mold 340, the shape of the movable female mold 340 matches with the shape of the block, the block mounting portion is a mechanical clamp, the block 110 is placed in the movable female mold 340 and clamps the block 110 on the downward pressing core mold 370 by a mechanical clamping force, and the mounting hole on the block 110 is vertically upward, one side of the movable female mold 340 facing the press head 320 is provided with a core body guide portion 360, the core body guide portion 360 is provided with a guide hole, and the guide hole is used for guiding the core body 120 to enter the mounting hole and to be opposite to the mounting hole; after the block 110 is molded on the die casting machine 200, the block may be manually or automatically mounted on the block mounting portion of the lower core mold 370, and the core 120 is press-mounted in the mounting hole by the pressure providing device. Parts which are not described in detail in the embodiment can be referred to the conventional structure, and are not described in detail.
Referring to fig. 8, the present invention further provides an automatic core loading apparatus, including: a transfer plate 420, an upper block device 410, a lower core device 430, a pressure providing device 450, and a lower balance block device 440. A transfer plate 420 for transferring the blocks 110 and the cores; an upper block device for placing blocks 110 to a designated position on the transfer plate 420; a lower core unit 430 is disposed around the transfer tray and preliminarily inserts cores into the mounting holes of the blocks 110; the pressure providing device 450 is disposed around the transfer plate 420, and presses the core into the mounting hole when the block 110 carrying the core is transferred to a set position, and the lower balance weight device is used to remove the pressed balance weight 100 from the transfer plate 420. The transfer plate 420 may be a conventional structure capable of transferring parts by rotating, and the upper block device 410, the lower core device 430, and the lower balance block device 440 may be a robot or the like, although it will be understood by those skilled in the art that the upper block device 410, the lower core device 430, and the lower balance block device 440 may be the same device if the distance is suitable.
Referring to fig. 9, the present invention further provides a method for manufacturing a balance weight 100, including the following steps:
s1: manufacturing a block body 110 through a die casting process, and forming a mounting hole on the block body 110;
s2: the core 120 is stamped into the mounting hole.
In one example of the method of manufacturing the weight 100 of the present invention, the die-casting process in step S1 includes: s11, mold closing: starting the die casting machine 200 and closing the die; s12 placing the core: the oil cylinders 260 on the two sides act to push the core-pulling core 250 into the block cavity 221 at a preset position; s13 filling the block cavity 221 with the molten liquid: after the mold core is in place, the molten zinc liquid enters the mold runner through the gate 211 and the sprue spreader 240 and then enters the block cavity 221, and the molten liquid fills the block cavity 221 under the action of pressure; s14, cooling: after heat preservation and pressure maintaining, condensing; s15 extracting the core: the side oil cylinder 260 acts to pull the core-pulling core 250, so that the core-pulling core is separated from the block cavity; s16, demolding: and (3) opening the die, wherein the ejection mechanism of the die casting machine 200 acts, and the block body 110 is pushed out through the ejector rod, so that one cycle is completed. Preferably, in an example of the method for manufacturing the weight 100 of the present invention, in the die casting process of step S1, the block 110 is made of zinc, and in the die casting process, the injection pressure of the molten zinc is 50-100 bar, the injection speed is 65-85 m/S, and the nozzle temperature is 400-450 ℃; pressurizing for 0.8-2.0 s, cooling for 1.0-2.5 s, crucible temperature being 380-450 ℃, and gooseneck temperature being 500-550 ℃; the process parameters are tested to ensure that the block body 110 has better mechanical properties.
In an example of a method for manufacturing the weight 100 according to the present invention, the core 120 is pressed into the mounting hole by a core-fitting mold in step S2. In this process, if the forward assembling is adopted, the block body 110 is placed on the block body mounting part (not shown) of the downward pressing core mold 300, the extending direction of the mounting hole is made to be consistent with the advancing direction of the pressing head 320 of the downward pressing core mold 300, the core body 120 is placed in the guide hole of the core body guide part 360 above the mounting hole, the upward pressing core mold 310 is operated, the upper slide block descends, the inclined wedge 350 is inserted into the concave mold, the movable concave mold 340 is pushed, the block body 110 is pressed, the upper slide block continues descending, the punch is pressed to the core body 120, the core body 120 enters the mounting hole in the block body 110, the upper slide block continues descending, the core is in place at the bottom dead center, the upper slide block ascends, and the next cycle starts.
The structure of the balance block can effectively protect the core body from being rusted, is suitable for batch production, and can improve the manufacturing efficiency and the production capacity of the balance block. In addition, the balance weight manufacturing method and the balance weight manufacturing system can realize batch production of the balance weight. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A weight, comprising:
the block body is provided with a mounting hole extending along a straight line;
the core body is made of a material capable of being adsorbed by the magnet, the size of the core body is matched with that of the mounting hole, and the core body is wholly or partially inserted into the mounting hole through stamping.
2. The weight of claim 1, wherein the mass is made of any one of zinc, zinc alloy, lead and lead alloy; the core body is made of iron or stainless steel.
3. The weight of claim 1, wherein the mounting hole is a circular hole and the core is a cylinder; the end part of the core body is provided with a conical surface for guiding the core body to enter the mounting hole.
4. The weight according to claim 1, wherein the end of the core is recessed within the mounting hole by 0.1-0.25 mm, and the exposed surfaces of the block and the core are provided with a layer of anti-corrosive material.
5. A mold for making the block of claim 1, comprising:
the upper casting mold is arranged on an upper workbench of a die casting machine and is provided with a pouring gate;
the lower casting mold is arranged on a lower workbench of the die casting machine and forms at least one block cavity communicated with the sprue after being matched with the upper casting mold;
the core-pulling core can be linearly and movably arranged at the side of the lower casting mold and can extend to a set position in the block-shaped cavity;
and a core driving device for driving the core pulling core to be inserted into the set position or separated from the set position.
6. The mold according to claim 5, further comprising a sprue, wherein a vertically extending tapered runner is disposed below the gate of the upper mold, a large end of the tapered runner faces the lower mold, and a small end of the sprue is disposed upward on the lower mold and is coaxial with the tapered runner.
7. A core loading machine comprises a pressure providing device and is characterized by also comprising a core loading mould,
the core-loading mold comprises:
the upper pressing core mold is provided with a pressing head matched with the core body;
a downward-pressing core mold provided with a block body mounting part capable of fixing a block body;
the guide structure is arranged between the upper core pressing die and the lower core pressing die and provides guide for the relative movement between the upper core pressing die and the lower core pressing die;
the upper core pressing die is mounted on an upper workbench of the pressure providing device, the lower core pressing die is mounted on a lower workbench of the pressure providing device, and the upper workbench and/or the lower workbench move oppositely under the action of the pressure providing device so as to press-fit the core body into the mounting hole in the block body.
8. An automatic core loading device, comprising:
a transfer tray for transferring the blocks and the cores;
an upper block device for placing blocks to a designated position on the transfer plate;
a lower core device arranged around the conveying disc and used for preliminarily inserting the core into the mounting hole on the block body;
the pressure providing device is arranged around the conveying disc and used for pressing the core bodies into the mounting holes when the block bodies carrying the core bodies are conveyed to a set position;
and the lower balance block device is used for taking down the pressed balance blocks from the conveying disc.
9. A method of making a weight, comprising the steps of:
s1: manufacturing a block body through a die-casting process, and forming a mounting hole in the block body;
s2: and stamping a core body into the mounting hole.
10. The method according to claim 9, wherein in the die casting process of step S1, the block is made of zinc, and in the die casting process, the injection pressure of zinc melt is 50-100 bar, the injection speed is 65-85 m/S, and the nozzle temperature is 400-450 ℃; the pressurizing time is 0.8-2.0 s, and the cooling time is 1.0-2.5 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582243.7A CN114211911A (en) | 2021-12-22 | 2021-12-22 | Balance block, mold for manufacturing balance block, core installing machine, automatic core installing machine and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582243.7A CN114211911A (en) | 2021-12-22 | 2021-12-22 | Balance block, mold for manufacturing balance block, core installing machine, automatic core installing machine and method |
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| Publication Number | Publication Date |
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| CN114211911A true CN114211911A (en) | 2022-03-22 |
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| CN202111582243.7A Pending CN114211911A (en) | 2021-12-22 | 2021-12-22 | Balance block, mold for manufacturing balance block, core installing machine, automatic core installing machine and method |
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| CN (1) | CN114211911A (en) |
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