CN109731974B - VL-shaped ball cage machining and forming assembly and machining and forming method thereof - Google Patents
VL-shaped ball cage machining and forming assembly and machining and forming method thereof Download PDFInfo
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- CN109731974B CN109731974B CN201910085314.9A CN201910085314A CN109731974B CN 109731974 B CN109731974 B CN 109731974B CN 201910085314 A CN201910085314 A CN 201910085314A CN 109731974 B CN109731974 B CN 109731974B
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Abstract
The invention provides a VL-shaped ball cage processing and forming assembly and a processing and forming method thereof, wherein the system comprises: the radial telescopic mandrel comprises a mandrel body, a pushing shaft fixing seat, a first reset structure, a plurality of inclined roller path convex blocks and a positioning support piece; the first reset structure is arranged between the mandrel body and the pushing shaft fixing seat; the positioning support piece is fixed on the mandrel body; a pushing shaft channel is formed in the mandrel body, the pushing shaft part is inserted in the pushing shaft channel, and the pushing shaft and the inclined raceway lug form a guiding pushing structure; the positioning support piece and the mandrel body are matched to form a plurality of lug cavities, and the mandrel body is provided with a plurality of lug outlets in one-to-one correspondence with the lug cavities; the inclined roller path convex blocks are arranged in the convex block cavities and are respectively connected with the positioning supporting pieces through the second reset structures. According to the VL-shaped ball cage processing and forming assembly and the processing and forming method thereof, the production link can be simplified, the production cost is saved, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the field of ball cages, in particular to a VL-shaped ball cage processing and forming assembly and a processing and forming method thereof.
Background
The VL-shaped ball cage on the market at present usually adopts a combined structure of two parts, the handle part is forged, the part with the inclined raceway is machined by a cutting method, and the two parts are combined by bolts.
The combined ball cage has low mechanical strength, poor stability, low production efficiency, large material consumption and large processing energy consumption, and is not suitable for the social development direction of energy conservation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the VL-shaped ball cage processing and forming assembly and the processing and forming method thereof, which can simplify the production link, save the production cost and reduce the energy consumption.
In order to achieve the above object, the present invention provides a VL-shaped ball cage processing and forming assembly, including a radial telescopic mandrel, where the radial telescopic mandrel includes a mandrel body, a pushing shaft fixing seat, a first resetting structure, a plurality of inclined raceway protrusions, and a positioning support; the first reset structure is arranged between the first end of the mandrel body and the pushing shaft fixing seat; the positioning support piece is fixed at the second end of the mandrel body; a pushing shaft channel is formed in the mandrel body, a pushing shaft through hole matched with the pushing shaft channel is formed in the pushing shaft fixing seat, the pushing shaft is inserted into the pushing shaft through hole and is partially inserted into the pushing shaft channel, and a guide pushing structure matched with the inclined raceway lug is formed at one end, close to the second end of the mandrel body, of the pushing shaft and the inclined raceway lug; the positioning support piece and the mandrel body are matched to form a plurality of lug cavities, and the mandrel body is provided with a plurality of lug outlets in one-to-one correspondence with the lug cavities; the inclined raceway convex block is arranged in the convex block cavity and is respectively connected with the positioning support piece through a second reset structure, and when the inclined raceway convex block receives the pushing of the pushing shaft, the inclined raceway convex block can extend out of the part corresponding to the outlet of the convex block along a preset direction.
Preferably, the pushing shaft and the pushing shaft fixing seat form a first axial limiting structure, and the pushing shaft and the first end of the mandrel body form a second axial limiting structure.
Preferably, the first reset structure includes a plurality of return pull rods and a plurality of first reset springs, the first end of the mandrel body extends outwards to form an installation end face, a plurality of pull rod through holes are evenly formed in the installation end face along the circumferential direction, the first end of the return pull rod is fixed to the pushing shaft fixing seat, the return pull rod penetrates through the pull rod through hole, and a limiting portion is formed at the second end of the return pull rod.
Preferably, the second return structure comprises a guide slot, a slide plate and a second return spring; the guide groove is formed in the inclined roller path lug and is parallel to the preset direction; the gleitbretter includes a gleitbretter body and a connecting portion, the gleitbretter body can be followed the guide way reciprocating motion set up in the guide way just the guide way is right the gleitbretter body is spacing, connecting portion stretch out the guide way is connected second reset spring's first end, second reset spring's second end is connected location support piece.
Preferably, the preset direction and the vertical direction form a fixed included angle.
Preferably, one end of the pushing shaft adjacent to the positioning support member forms a radial limiting structure which is matched with the positioning support member.
Preferably, the radial limiting structure comprises a positioning boss and a positioning groove, and the positioning boss is formed on the positioning support; the positioning groove is formed in the pushing shaft.
Preferably, the punching die further comprises a female die, a push rod and a plurality of radial punches, wherein the female die is vertically formed into a blank processing groove, and the push rod can partially extend into the blank processing groove and is arranged below the female die; the radial punches can be arranged on the upper surface of the female die in a manner of reciprocating along the radial direction of the blank processing groove and are uniformly distributed along the circumferential direction of the blank processing groove.
The invention relates to a VL-shaped ball cage processing and forming method based on the VL-shaped ball cage processing and forming assembly, which comprises the following steps of:
s1: placing a blank into the blank processing groove and arranging the radial telescopic mandrel right above the blank processing groove;
s2: lowering the radially collapsible mandrel until the bottom end of the radially collapsible mandrel contacts the blank;
s3: pressing the pushing shaft and the pushing shaft fixing seat downwards, wherein the inclined raceway lug is pushed out from the part corresponding to the lug outlet by the pushing shaft;
s4: the radial punch presses the blank along the blank processing groove in a direction of radially approaching the blank, and the blank is pressed to form a VL-shaped ball cage;
s5: resetting the radial punch, wherein the pushing shaft fixing seat automatically resets under the action of a first resetting structure and pulls the pushing shaft to reset; the inclined raceway lug is reset under the action of the second resetting structure;
s6: and pulling the radial telescopic mandrel out of the VL-shaped ball cage.
Preferably, after the step of S6, the method further includes the steps of:
s7: and ejecting the VL-shaped ball cage out of the blank processing groove through the ejector rod.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the mandrel body, the pushing shaft fixing seat, the first reset structure, the inclined raceway convex block and the positioning support piece are matched, so that the inclined raceway convex block can radially extend and retract along the radial direction of the telescopic mandrel. The first axial limiting structure and the second axial limiting structure are used for limiting the axial direction of the butting and pushing shaft. The cooperation of radial scalable dabber, die and radial drift can realize the integrated press forming to VL type ball cage, can simplify the production link, practices thrift manufacturing cost, reduces the energy consumption.
Drawings
Fig. 1 is a schematic structural view of a radially collapsible mandrel according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
FIG. 3 is a schematic illustration of the results of a VL-shaped ball cage tooling assembly in accordance with an embodiment of the present invention;
FIG. 4 is a schematic top view of a radial punch according to an embodiment of the present invention;
FIG. 5 is a flow chart of a VL type ball cage processing and forming method according to an embodiment of the invention;
fig. 6 is a schematic processing flow diagram of a VL type ball cage processing and forming method according to an embodiment of the invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings of fig. 1 to 6, and will make the functions and features of the present invention better understood.
Referring to fig. 1 and fig. 2, a VL-shaped ball cage processing and forming assembly according to an embodiment of the present invention includes a radial telescopic mandrel 1, where the radial telescopic mandrel 1 includes a mandrel body 11, a pushing shaft 12, a pushing shaft fixing seat 13, a first resetting structure 14, a plurality of inclined raceway protrusions 15, and a positioning support 16; the first reset structure 14 is arranged between the first end of the mandrel body 11 and the pushing shaft fixing seat 13; the positioning support 16 is fixed to the second end of the mandrel body 11; a pushing shaft channel 111 is formed in the mandrel body 11, a pushing shaft through hole 131 matched with the pushing shaft channel 111 is formed in the pushing shaft fixing seat 13, the pushing shaft 12 is inserted into the pushing shaft through hole 131 and is partially inserted into the pushing shaft channel 111, and one end of the pushing shaft 12, which is adjacent to the second end of the mandrel body 11, and the inclined raceway convex block 15 form a guiding pushing structure matched with each other; the positioning support 16 and the mandrel body 11 are matched to form a plurality of lug cavities 161, and the mandrel body 11 forms a plurality of lug outlets 112 with the positions corresponding to the lug cavities 161 one by one; the inclined raceway protrusions 15 are disposed in the protrusion cavities 161 and are respectively connected to the positioning supports 16 through a second restoring structure 17, and when the inclined raceway protrusions 15 are pushed against the pushing shaft 12, the inclined raceway protrusions 15 can partially protrude from the corresponding protrusion outlets 112 along a predetermined direction.
The mandrel body 11, the abutting shaft 12, the abutting shaft fixing seat 13, the first resetting structure 14, the inclined raceway convex block 15 and the positioning support piece 16 are matched, so that the inclined raceway convex block 15 can radially extend and retract along the radial direction of the telescopic mandrel 1.
In this embodiment, the pushing shaft 12 has a hexagonal prism shape.
The pushing shaft 12 and the pushing shaft fixing seat 13 form a first axial limiting structure 121, and the pushing shaft 12 and the first end of the mandrel body 11 form a second axial limiting structure 122.
The first axial limiting structure 121 and the second axial limiting structure 122 are used for limiting the axial direction of the pushing shaft 12.
The first restoring structure 14 includes a plurality of return pull rods 141 and a plurality of first restoring springs 142, the first end of the mandrel body 11 extends outward to form an installation end surface 113, the installation end surface 113 is uniformly provided with a plurality of pull rod through holes along the circumferential direction, the first end of the return pull rod 141 is fixed to the pushing shaft fixing seat 13, the return pull rod 141 penetrates through the pull rod through holes, and the second end of the return pull rod 141 forms a limiting portion 1411.
The second reset structure 17 includes a guide slot 171, a sliding piece 172 and a second reset spring 173; the guide groove 171 is formed in the inclined raceway protrusion 15 in parallel to the preset direction; the sliding piece 172 includes a sliding piece body 1721 and a connecting portion 1722, the sliding piece body 1721 can be disposed in the guiding groove 171 along the guiding groove 171 in a reciprocating manner, the guiding groove 171 limits the sliding piece body 1721, the connecting portion 1722 extends out of the guiding groove 171 and is connected to a first end of the second return spring 173, and a second end of the second return spring 173 is connected to the positioning support 16. In this embodiment, the predetermined direction and the vertical direction form a fixed included angle.
One end of the pushing shaft 12 adjacent to the positioning support 16 forms a radial limit structure cooperating with the positioning support 16. The radial limiting structure comprises a positioning boss 162 and a positioning groove 123, and the positioning boss 162 is formed on the positioning support piece 16; the positioning groove 123 is formed in the pushing shaft 12.
Referring to fig. 3 and 4, the stamping die further comprises a female die 2, a push rod 3 and a plurality of radial punches 4, wherein the female die 2 is formed into a blank processing groove 21 along the vertical direction, and the push rod 3 is arranged below the female die 2 and can partially extend into the blank processing groove 21; the radial punches 4 are provided on the upper surface of the die 2 so as to be radially reciprocable along the blank processing groove 21 and are uniformly distributed in the circumferential direction of the blank processing groove 21.
The cooperation of radial scalable dabber 1, die 2 and radial drift 4 can realize the integrated press forming to VL type ball cage, can simplify the production link, practices thrift manufacturing cost, reduces the energy consumption.
Referring to fig. 1, fig. 3, fig. 5 and fig. 6, a method for forming a VL-shaped ball cage of a VL-shaped ball cage forming assembly according to an embodiment of the present invention includes:
s1: placing a blank 5 into the blank processing groove 21 and arranging the radial telescopic mandrel 1 right above the blank processing groove 21;
s2: descending the radial telescopic mandrel 1 until the bottom end of the radial telescopic mandrel 1 is contacted with the blank 5;
s3: the pushing shaft 12 and the pushing shaft fixing seat 13 are pressed downwards, and the inclined raceway convex block 15 is pushed out from the part corresponding to the convex block outlet 112 by the pushing shaft 12;
s4: the radial punch 4 presses the blank 5 along the blank processing groove 21 in the direction close to the blank 5 in the radial direction, and the blank is pressed to form a VL-shaped ball cage;
at this time, the outer peripheral plane of the push shaft 12 completely contacts the inner plane of the inclined raceway protrusion 15, and rigid support is obtained. Meanwhile, the outer peripheral surface of the positioning boss 162 is completely attached to the inner wall of the positioning groove 123 to obtain rigid support, so that the radial telescopic mandrel 1 can bear strong pressure when the radial punch 4 is pressed and formed.
S5: resetting the radial punch 4, automatically resetting the fixed seat of the pushing shaft 12 under the action of the first resetting structure 14, and simultaneously pulling the pushing shaft 12 to reset; the inclined raceway lug 15 is reset under the action of a second resetting structure 17;
s6: and pulling the radial telescopic mandrel 1 out of the VL-shaped ball cage.
In other embodiments, after the step of S6, the method further includes the steps of:
s7: the VL-shaped cage is ejected from the blank processing tank 21 by the ejector pin 3.
According to the VL-shaped ball cage processing and forming assembly, the radial telescopic mandrel 1 can be smoothly removed after a product is pressed and formed, and the VL-shaped ball cage can be produced in a pressure processing mode. Compared with the traditional machining method, the VL-shaped ball cage machining and forming method provided by the embodiment of the invention can effectively reduce energy consumption, save materials, improve production efficiency, improve the mechanical performance of the machined workpiece, effectively improve economic benefits and improve market competitiveness, and is simple in process, obvious in beneficial effect and convenient to popularize and use.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (7)
1. A VL-shaped ball cage processing and forming assembly is characterized by comprising a radial telescopic mandrel, wherein the radial telescopic mandrel comprises a mandrel body, a pushing shaft fixing seat, a first resetting structure, a plurality of inclined roller path convex blocks and a positioning support piece; the first reset structure is arranged between the first end of the mandrel body and the pushing shaft fixing seat; the positioning support piece is fixed at the second end of the mandrel body; a pushing shaft channel is formed in the mandrel body, a pushing shaft through hole matched with the pushing shaft channel is formed in the pushing shaft fixing seat, the pushing shaft is inserted into the pushing shaft through hole and is partially inserted into the pushing shaft channel, and a guide pushing structure matched with the inclined raceway lug is formed at one end, close to the second end of the mandrel body, of the pushing shaft and the inclined raceway lug; the positioning support piece and the mandrel body are matched to form a plurality of lug cavities, and the mandrel body is provided with a plurality of lug outlets in one-to-one correspondence with the lug cavities; the inclined raceway convex block is arranged in the convex block cavity and is respectively connected with the positioning support piece through a second reset structure, and when the inclined raceway convex block receives the pushing of the pushing shaft, the inclined raceway convex block can extend out of the part corresponding to the outlet of the convex block along a preset direction;
the pushing shaft and the pushing shaft fixing seat form a first axial limiting structure, and the pushing shaft and the first end of the mandrel body form a second axial limiting structure;
the first reset structure comprises a plurality of return pull rods and a plurality of first reset springs, the first end of the mandrel body extends outwards to form an installation end face, a plurality of pull rod through holes are uniformly formed in the installation end face along the circumferential direction, the first end of each return pull rod is fixed on the pushing shaft fixing seat, each return pull rod penetrates through the corresponding pull rod through hole, and the second end of each return pull rod forms a limiting part;
the second reset structure comprises a guide groove, a sliding sheet and a second reset spring; the guide groove is formed in the inclined roller path lug and is parallel to the preset direction; the gleitbretter includes a gleitbretter body and a connecting portion, the gleitbretter body can be followed the guide way reciprocating motion set up in the guide way just the guide way is right the gleitbretter body is spacing, connecting portion stretch out the guide way is connected second reset spring's first end, second reset spring's second end is connected location support piece.
2. A VL type cage tooling assembly as set forth in claim 1, wherein said predetermined orientation is at a fixed angle to vertical.
3. A VL type cage forming assembly as claimed in claim 2, wherein an end of the shaft adjacent the locating support member defines a radial stop for cooperating with the locating support member.
4. A VL type cage forming assembly as claimed in claim 3, wherein said radial stop structure comprises a positioning boss and a positioning recess, said positioning boss being formed on said positioning support member; the positioning groove is formed in the pushing shaft.
5. A VL-shaped ball cage processing and forming assembly according to any one of claims 1-4, further comprising a female die, a top rod and a plurality of radial punches, wherein the female die forms a blank processing groove in the vertical direction, and the top rod is arranged below the female die and can partially extend into the blank processing groove; the radial punches can be arranged on the upper surface of the female die in a manner of reciprocating along the radial direction of the blank processing groove and are uniformly distributed along the circumferential direction of the blank processing groove.
6. A VL-shaped cage forming method based on the VL-shaped cage forming assembly of claim 5, comprising the steps of:
s1: placing a blank into the blank processing tank and positioning the radially retractable mandrel directly above the blank processing tank;
s2: lowering the radially collapsible mandrel until the bottom end of the radially collapsible mandrel contacts the blank;
s3: pressing the pushing shaft and the pushing shaft fixing seat downwards, wherein the inclined raceway lug is pushed out from the part corresponding to the lug outlet by the pushing shaft;
s4: the radial punch presses the blank along the blank processing groove in a direction of radially approaching the blank, and the blank is pressed to form a VL-shaped ball cage;
s5: resetting the radial punch, wherein the pushing shaft fixing seat automatically resets under the action of a first resetting structure and pulls the pushing shaft to reset; the inclined raceway lug is reset under the action of the second resetting structure;
s6: and pulling the radial telescopic mandrel out of the VL-shaped ball cage.
7. The VL type ball cage processing and forming method as set forth in claim 6, further comprising, after said step of S6, the steps of:
s7: and ejecting the VL-shaped ball cage out of the blank processing groove through the ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085314.9A CN109731974B (en) | 2019-01-29 | 2019-01-29 | VL-shaped ball cage machining and forming assembly and machining and forming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085314.9A CN109731974B (en) | 2019-01-29 | 2019-01-29 | VL-shaped ball cage machining and forming assembly and machining and forming method thereof |
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| CN109731974A CN109731974A (en) | 2019-05-10 |
| CN109731974B true CN109731974B (en) | 2020-04-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112808828A (en) * | 2021-01-06 | 2021-05-18 | 泰州市第一铝材厂有限公司 | Special forming device for aluminum product of motor car |
| CN114101572A (en) * | 2021-11-10 | 2022-03-01 | 上海电机学院 | VL-shaped ball cage cylindrical shell radial constant-speed multidirectional die forging forming device and method |
| CN114799029A (en) * | 2022-03-31 | 2022-07-29 | 上海电机学院 | Closed multidirectional die forging forming die and forming method for VL-shaped ball cage cylindrical shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003245747A (en) * | 2002-02-27 | 2003-09-02 | Aida Eng Ltd | Method for forming outer race of constant velocity universal joint |
| CN202592138U (en) * | 2012-06-06 | 2012-12-12 | 吉林北方捷凯传动轴有限公司 | Special fixture for excircle grinding of outer sleeve of constant velocity cardan joint of driving end |
| JP2014144589A (en) * | 2013-01-29 | 2014-08-14 | Jtekt Corp | Apparatus and method for production of boot for constant-velocity joints |
| CN103567717B (en) * | 2013-08-31 | 2016-03-23 | 浙江欧迪恩传动科技股份有限公司 | BJ type constant velocity cardan joint clutch can raceway moulding process and finishing equipment thereof |
| CN203508901U (en) * | 2013-09-20 | 2014-04-02 | 江苏海宇机械有限公司 | Outer spherical cage precision forging piece inner cavity cold forging finishing punch |
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