CN110586793A - Compound mould of circular cone holder - Google Patents

Compound mould of circular cone holder Download PDF

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Publication number
CN110586793A
CN110586793A CN201910955007.1A CN201910955007A CN110586793A CN 110586793 A CN110586793 A CN 110586793A CN 201910955007 A CN201910955007 A CN 201910955007A CN 110586793 A CN110586793 A CN 110586793A
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CN
China
Prior art keywords
die
stretching
female die
male
side wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910955007.1A
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Chinese (zh)
Inventor
郑广会
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Kinde Precision Machinery Polytron Technologies Inc
Shandong Golden Empire Precision Machinery Technology Co Ltd
Original Assignee
Shandong Kinde Precision Machinery Polytron Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Shandong Kinde Precision Machinery Polytron Technologies Inc filed Critical Shandong Kinde Precision Machinery Polytron Technologies Inc
Priority to CN201910955007.1A priority Critical patent/CN110586793A/en
Publication of CN110586793A publication Critical patent/CN110586793A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/10—Combined ejecting and stripping-off devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
    • B21D53/12—Making other particular articles parts of bearings; sleeves; valve seats or the like cages for bearings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention discloses a conical retainer composite die which comprises a first die set and a second die set, wherein the first die set comprises a bottom cutting male die and a stretching female die coaxially sleeved with the bottom cutting male die, and the second die set comprises a stretching male die and a blanking female die coaxially sleeved with the stretching male die. The outer side wall of the stretching female die is matched with the inner side wall of the blanking female die to finish blanking action, the stretching surface of the stretching female die is matched with the stretching surface of the stretching male-female die to finish stretching action, and the outer side wall of the bottom cutting male die is matched with the inner side wall of the stretching male-female die to finish bottom cutting action. The three processes are combined into one process for processing, so that the process steps are reduced, the process route is shortened, the processing period of the product is shortened, and manpower and material resources can be greatly saved.

Description

Compound mould of circular cone holder
Technical Field
The invention belongs to the technical field of composite molds for retainers, and particularly relates to a composite mold for a conical retainer.
Background
A bearing cage, also called a bearing cage, refers to a bearing part that partially encloses all or part of the rolling elements and moves along with them, to isolate the rolling elements and generally to guide them and hold them in the bearing, and a tapered cage is a bearing cage particularly used in tapered roller bearings.
The production process of the prior art conical retainer generally comprises the steps of cutting, stretching, trimming, punching a window hole, cutting a bottom, pressing a slope, expanding and the like. In order to ensure the quality of the product and the accuracy of the post-process processing of the product, a positioning hole needs to be processed at the bottom of the small end of the conical retainer during the stretching process, so that the accumulated error of the product processing caused by repeated positioning is increased. In addition, when the bottom is cut, due to the existence of the positioning holes in the stretching process, cut materials cannot be reused by other small-size products, and raw material waste is easily caused.
In addition, the production process in the prior art has multiple process steps and long process route, so that the processing period of the product is prolonged to a certain extent, the improvement of the product quality is not facilitated, and the labor cost and the power consumption are greatly increased.
Disclosure of Invention
In view of the above, the present invention provides a conical cage composite mold that overcomes or at least partially solves the above-mentioned problems.
In a first aspect, an embodiment of the present invention provides a conical holder composite mold, including:
the first module comprises a bottom cutting male die and a stretching female die coaxially sleeved on the bottom cutting male die;
the second module comprises a stretching male die and a cutting female die which are coaxially sleeved on the stretching male die and the stretching female die; the outer side wall of the stretching female die is matched with the inner side wall of the blanking female die to finish blanking action, the stretching surface of the stretching female die is matched with the stretching surface of the stretching male-female die to finish stretching action, and the outer side wall of the bottom cutting male die is matched with the inner side wall of the stretching male-female die to finish bottom cutting action.
In an optional embodiment, the stretching female die is provided with a sliding cavity communicated to the stretching surface of the stretching female die, and the sliding cavity is internally provided with a first abutting part and a second abutting part along the die closing direction of the stretching female die;
the first module still includes first unloading ring, and it can set up in sliding chamber with sliding, and first unloading ring has a sliding part along the compound die direction of tensile die, and one is close to the discharge end of tensile face for the sliding part, and the sliding part restriction is supported and is supported the portion and remove between the portion at first support to the second to can drive the discharge end and remove to a stretching out position that stretches out the tensile face for tensile die.
In an optional embodiment, the first module further comprises:
and the first ejection piece is slidably arranged in the sliding cavity and can abut against the first unloading ring in the die closing direction of the stretching female die, and when the stretching female die is far away from the die closing direction, the first unloading ring reaches the extending position of the stretching surface relative to the stretching female die.
In an alternative embodiment, the stretching surface of the stretching female die sequentially comprises in the mold closing direction:
a forming section which is a round table surface; and
and the buffer section is provided with a curved surface protruding towards the axial direction of the stretching female die.
In an optional embodiment, the second module comprises:
and the second discharging ring is sleeved on the outer side wall of the stretching male-female die and can slide along the outer side wall of the stretching male-female die.
In an optional embodiment, the second module further comprises:
and the second ejection piece can abut against the second discharging ring in the die assembly direction of the stretching male and female die so as to enable the second discharging ring to slide to the stretching surface of the stretching male and female die relative to the stretching male and female die.
In an optional embodiment, further comprising:
and the plurality of guide mechanisms are symmetrically arranged along the central axis of the second module and can enable the first module to move relative to the second module along the die closing direction.
In a second aspect, an embodiment of the present invention provides a machine tool, including: the machine tool slide block, the machine tool workbench and the conical retainer composite die are characterized in that the first module is fixed on the machine tool slide block, and the second module is fixed on the machine tool workbench.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the conical retainer composite die, the stretching female die and the bottom cutting male die in the first die set are matched with the blanking female die and the stretching male die in the second die set so as to complete actions of blanking, stretching, bottom cutting and the like. Compared with the mode that the processes of cutting, stretching, bottom cutting and the like are separately processed in the prior art, the three processes are combined into one process for processing, the steps of the processes are reduced, the process route is shortened, the processing period of the product is shortened, and manpower and material resources can be greatly saved. In addition, because the stretching process and the bottom cutting process are not independent processes, positioning holes do not need to be machined in the raw materials when the raw materials are stretched, and the accumulated error of product machining caused by repeated positioning can be reduced. In addition, the cut raw materials can be recycled, and the production cost is saved.
2. As a preferred embodiment of the present invention, the first die set further includes a first discharging ring, and when the conical holder composite die provided by the present invention is used for product processing, the cut-bottom raw material tends to adhere to the cutting bottom punch, and the first discharging ring can discharge the product on the cutting bottom punch. Wherein, first discharge ring sets up in tensile die with sliding and communicates to the sliding chamber of tensile face, and the sliding part of first discharge ring is by the first portion and the second of leaning on of restriction in the sliding chamber and support and slide between the portion to the discharge end that drives first discharge ring stretches out to the extended position of tensile face. This kind of mode of unloading, simple structure can cooperate with tensile die and accomplish the action of unloading, has saved the inner space of first module, and the action of unloading and blank action, tensile action and undercutting action can be accomplished in a process, has shortened the cycle of product processing greatly.
3. As a preferred embodiment of the present invention, the first die set further includes a first ejecting member, and the first ejecting member can abut against the first discharging ring to control the first discharging ring to complete the discharging operation. First liftout piece can slide in the slip chamber, and its equidimension and the size phase-match in slip chamber of diameter also lead to the ejection power of first liftout piece and the power phase-match of unloading of first discharge ring, can not too big or undersize to guarantee not harm the product when first discharge ring can be unloaded.
4. As a preferred embodiment of the present invention, the stretching surface of the stretching female die sequentially comprises, along the die closing direction, a forming section and a buffer section, wherein the buffer section is a curved surface protruding in the axial direction of the stretching female die, and can buffer the workpiece when the workpiece is stretched, thereby avoiding the occurrence of fracture, deformation and the like of the workpiece caused by the stretching action; the forming section is a table top for drawing the workpiece to a final shape.
5. As a preferred embodiment of the present invention, the second die set further includes a second discharge ring disposed on the outer side wall of the drawing punch-die and capable of sliding along the outer side wall of the drawing punch-die; the setting of second discharge ring can be lifted off the work piece that is located on tensile die for compensate the unable circumstances of unloading of first discharge ring.
6. As a preferred embodiment of the present invention, the second die set further includes a second ejector for controlling the second discharge ring to move along the outer sidewall of the drawing punch-die set, which is simple in structure, and can save space in the second die set and optimize the structure of the second die set.
7. As a preferred embodiment of the present invention, the composite mold for a conical holder further comprises a plurality of guiding mechanisms, wherein the plurality of guiding mechanisms are uniformly distributed along the central axis of the second mold set, and when the first mold set and the second mold set are closed, the guiding mechanisms play a role in guiding so as to ensure the stability of the first mold set and the second mold set, and further ensure the coaxiality of product processing and the variation of the outer diameter of the conical holder.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a conical holder according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conical cage composite mold according to an embodiment of the present invention;
fig. 3 is a partially enlarged schematic view of a first discharge ring structure provided in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a stretching surface in the stretching die provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of a conical holder composite mold according to an embodiment of the present invention.
Wherein the content of the first and second substances,
the device comprises a first die set 10, a bottom cutting male die 11, a stretching female die 12, a first fixing plate 13, a first template 14, a material beating plate 15, a first die holder 16, a mandril 17, a first ejecting piece 18 and a first discharging ring 19;
20, a second die set, 21 a stretching male die and a stretching female die, 22 a cutting female die, 23 a supporting cylinder, 24 a second fixing plate, 25 a second template, 26 a second die holder, 27 a second discharging ring, 28 a second ejecting piece and 29 a guide mechanism;
a 31 sliding part, a 32 discharging end and a 33 sliding cavity;
41 a forming section and 42 a buffer section;
51 material belt, 52 blanking hole.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the face of increasingly intense competitive environment of the retainer market, the price of the product is particularly important in market competition. In order to reduce the production cost, improve the utilization rate of raw materials and further improve the competitiveness in the market of the conical retainer. The invention provides a conical retainer composite die aiming at the characteristics of large demand of a conical retainer and the like and starting from a production process of the conical retainer.
As shown in fig. 1, the main parameters of the conical cage include: big end nominal outside diameter DcMinor end nominal outer diameter Dc1Minor end nominal base diameter dc3Cage wall thickness S and outer diameter variation VDcBottom diameter variation Vdc3The amount of positional variation V of the center of the bottom diameter to the center of the outer diameterHc1And the like. Wherein the content of the first and second substances,variation V of outer diameterDcThe difference between the maximum outer diameter and the minimum outer diameter in a plane parallel to the tangent plane of the end face of the conical retainer; variation V of base diameterdc3The difference between the maximum bottom diameter and the minimum bottom diameter of the conical retainer; position variation V of bottom diameter center to outer diameter centerHc1The difference between the maximum radial distance and the minimum radial distance from the surface of the bottom hole of the retainer to the surface of the outer diameter at the same end.
In general, Dc1The wall thickness S of the conical retainer which is larger than or equal to 200mm is usually larger, so that when the conical retainer of the type is processed, a larger forming force is often needed, and the requirement on the strength of a stamping die is also higher; and for Dc1The conical retainer less than 200mm is convenient for stamping due to the small size. Thus, embodiments of the present invention will be described in Dc1The structure of the conical holder composite mold will be described in detail by taking the working process of the conical holder of < 200mm as an example.
As shown in fig. 2, the present invention provides a composite mold for a conical cage, comprising:
the first die set 10 comprises a bottom cutting male die 11 and a stretching female die 12 coaxially sleeved on the bottom cutting male die 11; the second module 20 comprises a stretching punch-die 21 and a blanking die 22 coaxially sleeved on the stretching punch-die 21; the outer side wall of the stretching female die 12 is matched with the inner side wall of the blanking female die 22 to finish the blanking action, the stretching surface of the stretching female die 12 is matched with the stretching surface of the stretching female die 21 to finish the stretching action, and the outer side wall of the undercutting male die 11 is matched with the inner side wall of the stretching male die 21 to finish the undercutting action.
Wherein, the inside wall of the stretching die 12 in the first module 10 is abutted against the outside wall of the blanking punch 22, and the stretching die 12 and the blanking punch 11 can be fixedly arranged on the first fixing plate 13, for example, when the first module 10 moves up and down, the stretching die 12 and the blanking punch 11 can also move simultaneously. The arrangement of the first fixing plate 13 can ensure the coaxiality of the stretching female die 12 and the undercutting male die 11, thereby ensuring the position variation V of the bottom diameter center to the outer diameter center of the conical retainerHc1And product quality. In this embodiment, when the drawing die 12 and the undercutting punch 11 are usedWhen the coaxiality of the retainer is less than or equal to phi 0.02mm, the position variation V of the bottom diameter center to the outer diameter center of the produced conical retainer is consideredHc1The product requirements are met. The connection mode of the drawing die 12, the blanking punch 22 and the first retainer 13 may be, for example, a bolt connection or a pin connection, which is not limited in the embodiment of the present invention.
As a preferred embodiment of this embodiment, the second fixing plate 24 in the second die set 20 may be, for example, a stepped fixing member, one end of which is clamped to the bottom of the drawing punch-die 21, the other end of which is connected to the bottom of the supporting cylinder 23, and the top of the supporting cylinder 23 is connected to the blanking die 22. The blanking die 22 and the stretching punch-die 21 are also coaxially arranged, so as to ensure the coaxiality of the blanking die and the stretching punch-die, and further ensure the product quality.
According to the composite die for the conical retainer, the stretching female die 12 and the undercutting male die 11 in the first die set 10 are matched with the blanking female die 22 and the stretching male die 21 in the second die set 20 to complete actions of blanking, stretching, undercutting and the like. Compared with the mode that the processes of cutting, stretching, bottom cutting and the like are separately processed in the prior art, the three processes are combined into one process for processing, the steps of the processes are reduced, the process route is shortened, the processing period of the product is shortened, and manpower and material resources can be greatly saved. In addition, because the stretching process and the bottom cutting process are not independent processes, positioning holes do not need to be machined in the raw materials when the raw materials are stretched, and the accumulated error of product machining caused by repeated positioning can be reduced. In addition, the cut raw materials can be recycled, and the production cost is saved.
In order to more clearly understand the present invention, the connection relationship between the components of the first module 10 and the second module 20 will be briefly described as follows:
referring to fig. 2, the present invention provides a preferred embodiment, wherein the first module 10 may further include: the device comprises a first template 14, a knockout plate 15, a first die holder 16, a mandril 17, a first ejector 18 and a first discharge ring 19. The other side of the first fixing plate 13, which is opposite to the stretching female die 12 and the undercutting male die 11, is connected with a first die plate 14, a through hole is formed in the center of the first die plate 14, and a material hitting plate 15 capable of sliding along the axial direction can be arranged in the through hole; the other side of the first template 14 opposite to the first fixed plate 13 is connected with a first die holder 16; a round hole is formed in the center of the first die holder 16, and the ejector rod 17 penetrates through the round hole to be connected with the material beating plate 15; the knockout plate 15 is also connected with a first ejector 18, and the first ejector 18 penetrates through the first fixing plate 13 and is abutted with a first discharging ring 19 in the sliding cavity of the drawing die 12.
The second module 20 may further include: a second template 25, a second die holder 26, a second discharge ring 27, a second ejector 28 and a guide mechanism 29. The second fixed plate 24 is fixed to the second die plate 25, and the other side of the second die plate 25 opposite to the second fixed plate 24 is connected to the second die holder 26. The second discharge ring is fitted over the outer side wall of the drawing punch and die 21, and the second ejector 28 may abut against the bottom of the second discharge ring, for example, and be able to slide in the second die plate 25. The guide mechanisms 29 are fixed to the second die holder 26, and are arranged axially symmetrically on the second die holder 26.
The connection mode of the components in the first module 10 and the second module 20 may be through bolts or through pins, which is not limited in the embodiment of the present invention. The first module 10 and the second module 20 may be combined together or integrally formed together, for example, and the embodiment of the invention is not limited thereto.
As a preferred embodiment of the present invention, referring to fig. 3, the drawing die 12 is formed with a slide cavity 33 connected to a drawing surface thereof, and the slide cavity 33 has a first abutting portion and a second abutting portion therein along a mold clamping direction of the drawing die 12; in the present embodiment, the first abutting portion and the second abutting portion may be, for example, upper and lower bottom surfaces of the sliding cavity 33; the first discharge ring 19 of the first die set 10 is slidably disposed in the slide cavity 33, for example, and the first discharge ring 19 has a slide portion 31 along the mold closing direction of the drawing die 12 and a discharge end 32 adjacent to the drawing surface relative to the slide portion, and the slide portion 31 is limited to move between a first abutting portion and a second abutting portion so as to drive the discharge end 32 to move relative to the drawing die 12 to an extended position extending out of the drawing surface.
When the conical retainer composite die provided by the invention is used for processing products, the cut raw materials are always adhered to the bottom cutting male die 11, and the first discharging ring 19 can discharge the products on the bottom cutting male die 11. During unloading, the first die set 10 moves along the demolding direction with the second die set 20; at this time, the parts of the first die set 10 other than the first discharge ring 19 are away from the stretching surface, and the first discharge ring 19 is still at the position of the stretching surface. I.e. relative movement is generated between the first discharging ring 19 and the drawing die 12, the ejecting end 32 ejects the product, and the whole discharging action is completed.
Wherein the first discharge ring 19 may be, for example, of thin-walled construction, facilitating sliding in the sliding chamber 33 in the drawing die 12. This kind of mode of unloading, simple structure, first unloading ring 19 can cooperate with tensile die 12 and accomplish the action of unloading, has saved the inner space of first module 10, and the action of unloading and blank action, tensile action and bottom cutting action can be accomplished in a process, has shortened the cycle of product processing greatly.
In another preferred embodiment of the present invention, the first ejector 18 in the first die set 10 is slidably disposed in the slide chamber 33, for example, and is adapted to abut against the first stripper ring 19 in the mold clamping direction of the drawing die 12, and to hold the first stripper ring 19 in an extended position reaching the drawing surface with respect to the drawing die 12 when the drawing die 12 is away from the mold clamping direction. The diameter etc. of the first ejection member 18 may for example be matched to the dimensions of the slide chamber 33 so that the ejection force of the first ejection member 18 matches the discharge force of the first discharge ring 19, not too large or too small, to ensure that the first discharge ring can discharge without damaging the product.
As a preferred embodiment of the present invention, as shown in fig. 4, the stretching surface of the stretching die 12 may include, for example, in order in the mold clamping direction: a forming section 41 which is a circular table surface; and a buffer section 42 having a curved surface protruding axially toward the drawing die. The buffer section can buffer the workpiece when the workpiece is stretched, so that the conditions of workpiece fracture, deformation and the like caused by stretching action are avoided; the forming section is used to draw the workpiece into a final shape.
As a preferred embodiment of the present invention, the second discharge ring 27 in the second die set 20, for example, the second discharge ring 27 may be sleeved on the outer side wall of the drawing punch-die 21 and may slide along the outer side wall of the drawing punch-die 21. The second discharging ring 27 is arranged to discharge the workpiece on the drawing punch-die 21, so as to compensate for the situation that the first discharging ring 27 cannot discharge the workpiece.
In a preferred embodiment of the present invention, the second ejector 28 in the second die set 20 may abut against the second stripper ring 27 in the mold clamping direction of the drawing die 21, for example, so that the second stripper ring 27 slides relative to the drawing die 21 to the drawing surface of the drawing die 21. This structure is simple, and can save space in the second module 20 and optimize the structure of the second module 20.
In a preferred embodiment of the present invention, the plurality of guide mechanisms 29 in the second die set 20 may be arranged symmetrically, for example, along the central axis of the second die set 20, and the plurality of guide mechanisms 29 may be capable of moving the first die set 10 relative to the second die set 20 in the mold clamping direction. The plurality of guide mechanisms 29 are uniformly distributed along the central axis of the second module 20, and play a role of guiding when the first module 10 and the second module 20 are closed, so as to ensure the stability of the first module 10 and the second module 20, and further ensure the coaxiality of product processing and the outer diameter variation V of the conical retainerDc。
In another aspect of the embodiments of the present invention, there is also provided a machine tool, which may include: the machine tool comprises a machine tool slide block, a machine tool workbench and the conical retainer composite die, wherein the first module 10 is fixed on the machine tool slide block, and the second module 20 is fixed on the machine tool workbench.
The following will describe the blanking, drawing, bottom cutting and discharging process of the conical holder in a specific embodiment:
referring to fig. 2, 4 and 5, the strip 51 is first placed on the upper surface of the blanking die 22, the machine is started, and the ram 17 controls the first die set 10 to move toward the die clamping direction (i.e., downward) by the action of a slide (not shown) of the machine. The stretching female die 12 in the first die set 10 contacts the material belt 51 firstly, and the outer side wall of the stretching female die 12 is matched with the inner side wall of the blanking female die 22, so that the material belt 51 is cut under the action of the cutting edge shearing force, and the blanking action is completed. The first module 10 continues to move downwards, and at this time, the material belt 51 is in contact with the stretching surface of the stretching female die 12, wherein the buffer section 42 of the stretching female die 12 is firstly in contact with the material belt, so that the horizontally placed material belt 51 is slowly deformed under the action of pressure; then, the forming section 41 of the drawing die 12 is in contact with the material strip 51, and the material strip 51 completes the drawing action under the combined action of the forming section 41 and the drawing surface of the drawing punch-die 21 in the second module 20, and finally the basic shape of the conical retainer is formed. Then, the first die set 10 continues to move downwards until the undercutting punch 11 contacts the material belt 51, the outer side wall of the undercutting punch 11 is matched with the inner side wall of the stretching punch-die 21, and under the action of the cutting edge shearing force of the undercutting punch 11 and the stretching punch-die 21, the upper bottom surface of the basically formed conical holder is cut off, so that the undercutting action is completed, and the cut upper bottom surface of the conical holder falls down through the blanking hole 52 in the stretching punch-die 21. Finally, the first die set 10 is moved upwards under the control of the machine slide, while the first discharge ring 19 is still in tangential abutment with the conical holder. When the knockout plate 15 abuts against the upper surface of the first fixing plate 13, that is, when the machine tool slide reaches the machine tool dead point, the first discharging ring 19 reaches the position of the drawing surface relative to the drawing die 12, and ejects the conical holder from the first die set 10, thereby completing the discharging operation.
It should be noted that after the bottom cutting operation is completed, the conical holder is clamped on the drawing punch-die 21. The second discharge ring 27 of the second die set 20 slides upward by the second ejector 28 to eject the jammed conical holder from the drawing punch-die 21, thereby completing the discharge operation.
In addition, in the bottom cutting process, for example, a proper blanking gap can be selected between the inner side wall of the stretching punch-die 21 and the outer side wall of the bottom cutting punch-die 11, so that the influence on the size of the conical retainer due to the influence of elastic deformation is avoided. The selection of the blanking gap will not be described in detail in this embodiment.
In order to ensure that the machined conical holder has good dimensional accuracy, the bottom cutting male die 11, the drawing female die 12, the drawing male die 21, the blanking female die 22 and other parts in the conical holder composite die provided by the embodiment can be made of molybdenum-vanadium materials, and the materials have good hardenability, high hardness, good wear resistance and small heat treatment deformation; other materials with high performance may also be used, which is not limited in the embodiments of the present invention. Meanwhile, in order to increase the service life of the mold, for example, the mold may be subjected to surface treatment by vacuum heat treatment or the like to prevent oxidation and decarburization of the surface of the mold, so that the mold has better wear resistance and stability, and the friction factor between the raw material and each component is reduced to increase the service life of each component.
The method can be realized by adopting or referring to the prior art in places which are not described in the invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to 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 scope of the claims of the present invention.

Claims (8)

1. A conical cage composite mold, comprising:
the first module comprises a bottom cutting male die and a stretching female die coaxially sleeved on the bottom cutting male die;
the second module comprises a stretching male die and a stretching female die and a blanking female die coaxially sleeved on the stretching male die and the stretching female die;
the outer side wall of the stretching female die is matched with the inner side wall of the blanking female die to complete blanking action, the stretching surface of the stretching female die is matched with the stretching surface of the stretching female die to complete stretching action, and the outer side wall of the bottom cutting male die is matched with the inner side wall of the stretching male die to complete bottom cutting action.
2. A composite die for a conical holder according to claim 1, wherein the drawing die is formed with a slide cavity communicating with a drawing surface thereof, and the slide cavity has a first abutting portion and a second abutting portion in a die closing direction of the drawing die;
the first die set further comprises a first discharging ring which is slidably arranged in the sliding cavity, the first discharging ring is provided with a sliding portion along the die assembly direction of the stretching female die, and a discharging end which is close to the stretching surface relative to the sliding portion, the sliding portion is limited to move between the first abutting portion and the second abutting portion, so that the discharging end can be driven to move to an extending position extending out of the stretching surface relative to the stretching female die.
3. A conical cage composite mold as in claim 2, wherein the first die set further comprises:
and a first ejector member slidably provided in the slide chamber and adapted to abut against the first discharge ring in a mold closing direction of the drawing die, the first ejector member being adapted to hold the first discharge ring in an extended position reaching the drawing surface with respect to the drawing die when the drawing die is away from the mold closing direction.
4. The composite die for the conical holder according to claim 1, wherein the stretching surface of the stretching die comprises in order along the die closing direction:
the forming section is a circular table top; and
and the buffer section is provided with a curved surface protruding towards the axial direction of the stretching female die.
5. A conical cage composite mold as claimed in claim 1, characterized in that the second die set comprises:
and the second discharging ring is sleeved on the outer side wall of the stretching male-female die and can slide along the outer side wall of the stretching male-female die.
6. A composite mold for a conical cage as in claim 5, wherein the second die set further comprises:
and a second ejector that can abut against the second discharge ring in a mold closing direction of the drawing die and the drawing punch so that the second discharge ring slides to a drawing surface of the drawing die and the drawing punch with respect to the drawing die.
7. A conical cage composite mold as claimed in claim 1, further comprising:
and the plurality of guide mechanisms are symmetrically arranged along the central axis of the second module and can enable the first module to move relative to the second module along the mold closing direction.
8. A machine tool, comprising: a machine tool slide, a machine tool table, and a conical cage composite mold according to any one of claims 1 to 7, the first die set being fixed to the machine tool slide and the second die set being fixed to the machine tool table.
CN201910955007.1A 2019-10-09 2019-10-09 Compound mould of circular cone holder Pending CN110586793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910955007.1A CN110586793A (en) 2019-10-09 2019-10-09 Compound mould of circular cone holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910955007.1A CN110586793A (en) 2019-10-09 2019-10-09 Compound mould of circular cone holder

Publications (1)

Publication Number Publication Date
CN110586793A true CN110586793A (en) 2019-12-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910955007.1A Pending CN110586793A (en) 2019-10-09 2019-10-09 Compound mould of circular cone holder

Country Status (1)

Country Link
CN (1) CN110586793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114210869A (en) * 2021-10-27 2022-03-22 山东金帝精密机械科技股份有限公司 Production method and production device for stamping retainer of angular contact bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114210869A (en) * 2021-10-27 2022-03-22 山东金帝精密机械科技股份有限公司 Production method and production device for stamping retainer of angular contact bearing

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