CN111906686A - Cutter device for cold extrusion mirror surface processing of material not removed on sphere-like surface - Google Patents
Cutter device for cold extrusion mirror surface processing of material not removed on sphere-like surface Download PDFInfo
- Publication number
- CN111906686A CN111906686A CN202010743570.5A CN202010743570A CN111906686A CN 111906686 A CN111906686 A CN 111906686A CN 202010743570 A CN202010743570 A CN 202010743570A CN 111906686 A CN111906686 A CN 111906686A
- Authority
- CN
- China
- Prior art keywords
- cutter
- rotating shaft
- cold extrusion
- fixed seat
- retainer
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
- B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
- B24B39/045—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution the working tool being composed of a plurality of working rolls or balls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/16—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces performing a reciprocating movement, e.g. during which the sense of rotation of the working-spindle is reversed
Abstract
The invention relates to a cutter device for cold extrusion mirror surface machining of a sphere-like surface by non-removable materials, which comprises a workpiece clamping mechanism, a rotating shaft connecting block and a cutter rotating mechanism, wherein the cutter rotating mechanism comprises a rotating fixed seat, a motor and a cutter rotating shaft, the rotating fixed seat is installed on the rotating shaft connecting block, a feeding mechanism is installed between the rotating fixed seat and the rotating shaft connecting block, the cutter rotating shaft is rotatably installed on one side of the rotating fixed seat, the motor is installed on the other side of the rotating fixed seat, an output shaft of the motor is connected with the cutter rotating shaft, one end of the cutter rotating shaft is connected with a retainer, an inner groove is formed in the retainer, and a plurality of balls are arranged. The invention can solve the problems of short service life of the cutter, high cost of the cutter and the like in the existing processing technology, and has the characteristics of simple structure, convenient installation, low cost and the like.
Description
Technical Field
The invention relates to the technical field of automobile part machining tools, in particular to a tool device for cold extrusion mirror surface machining of a non-removed material on a sphere-like surface.
Background
Spherical hinge products (shown in figure 5) used for the automobile chassis have the functions of connection, force transmission, matching movement and the like; the torque of the spherical hinge and the smoothness of the torque are important indexes for evaluating the performance of the spherical hinge; the ball pin is used as a key part of the ball hinge, and the processing quality of the surface of the ball head is an important factor influencing the torque of a product.
In the machining process of the ball pin, a non-material-removing cold extrusion mirror surface machining process is carried out after cutting finish machining, and a profiling cutter is used for carrying out extrusion type non-material-removing machining on the spherical surface of the ball pin so as to obtain higher surface roughness; the machining mode is that the part rotates around the main shaft of the machine tool under the action of the main shaft and the tool, the cutter rotates around the axis passing through the center of the sphere to realize the rolling motion of the whole spherical surface, the service life of the whole cutter is short, the requirement of the profiling machining on the shape of the cutter is very high, the roundness must be ensured within 0.01mm, and the cost of the cutter is greatly increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cutter device for cold extrusion mirror surface machining of a non-removed material on a sphere-like surface, which can solve the problems of short service life of a cutter, high cutter cost and the like in the existing machining process and has the characteristics of simple structure, convenience in installation, low cost and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a kind of spherical surface non-gets rid of cutter device of material cold extrusion mirror surface processing, including work piece clamping mechanism, rotation axis connecting block and cutter rotating mechanism, cutter rotating mechanism include rotating fixed base, motor and cutter rotation axis, the rotation axis connecting block on install rotating fixed base, install feed mechanism between this rotating fixed base and the rotation axis connecting block, rotating fixed base one side rotate and install the cutter rotation axis, the motor is installed to this rotating fixed base opposite side, the output shaft of motor and cutter rotation axis link to each other, cutter rotation axis one end be connected with the holder, be equipped with the inner groovy on this holder, the inner wall of inner groovy on evenly be equipped with a plurality of balls.
As a supplement to the technical scheme of the invention, the output shaft of the motor is connected with the cutter rotating shaft through a coupling.
As a supplement to the technical solution of the present invention, three angular contact ball bearings sleeved on the tool rotation shaft are installed inside the rotary fixing seat, and each two adjacent angular contact ball bearings are arranged oppositely.
As a supplement to the technical solution of the present invention, the feeding mechanism includes a guide rail, a screw rod and a bearing mounting seat, the guide rail is mounted on the rotating shaft connecting block, the rotating fixing seat is slidably mounted on the guide rail, the bearing mounting seat is mounted on one side of the lower portion of the rotating fixing seat, the screw rod is rotatably mounted in the bearing mounting seat, and one end of the screw rod is in threaded connection with the guide rail.
As a supplement to the technical scheme of the invention, the guide rail is a dovetail guide rail.
As a supplement to the technical scheme of the invention, the other end of the screw rod is provided with a dial.
As a supplement to the technical scheme of the invention, two thrust bearings sleeved on the screw rod are arranged in the bearing mounting seat, and a cylindrical roller bearing is arranged between the two thrust bearings.
As a supplement to the technical solution of the present invention, the holder is made of polytetrafluoroethylene.
As a supplement to the technical solution of the present invention, an end of the tool rotation shaft is provided with an installation groove for accommodating the holder, an opening of the installation groove is a tapered hole, and the holder is provided with a tapered portion engaged with the tapered hole.
As a supplement to the technical scheme of the invention, the middle part of the retainer is provided with a circle of annular groove, the section of the annular groove is in a right trapezoid shape, the end part of the cutter rotating shaft is uniformly provided with a plurality of inclined threaded holes around the circumference, the inclined threaded holes penetrate through the inner wall of the mounting groove, each inclined threaded hole is internally provided with a bolt, one end of each bolt is obliquely inserted into the annular groove, and one end of each bolt is propped against the conical surface where the inclined edge of the right trapezoid is positioned.
As a supplement to the technical scheme of the invention, a rotary dustproof ring is arranged on the other side of the rotary fixed seat, and the rotary dustproof ring is sleeved on the cutter rotating shaft.
Has the advantages that: the invention relates to a cutter device for cold extrusion mirror surface processing of a non-removed material on a sphere-like surface, which forms a net-shaped processing track on the surface of a ball head through the matching motion of autorotation of a workpiece, autorotation of a cutter and swinging of the cutter, thereby obtaining better mirror surface processing quality, solving the problems of low service life of the cutter, high cost of the cutter and the like, improving the surface quality of the ball head and increasing the wear resistance of a ball joint; the cutter comprises holder and a plurality of ball, and the cutter adopts many ball forms, and a plurality of steel balls roll extrusion simultaneously, can improve the life-span of cutter, improve machining efficiency, obtain more excellent surface quality, improve the wear resistance of ball pivot.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional assembly view of the tool rotating mechanism of the present invention;
FIG. 3 is a front view of the feed mechanism of the present invention in cross-section;
FIG. 4 is a cross-sectional assembly side view of the tool feed mechanism of the present invention;
fig. 5 is a schematic structural view of a ball-and-socket joint product to which the present invention is applied.
The figure is as follows: 1. the device comprises a workpiece clamping mechanism, 2, a workpiece, 3, a rotating shaft connecting block, 4, a feeding mechanism, 5, a tool rotating mechanism, 6, balls, 7, a retainer, 8, a rotating dustproof ring, 9, an angular contact ball bearing, 10, a rotating fixed seat, 11, a dustproof cover, 12, a locking nut, 13, a coupler, 14, a motor, 15, a tool rotating shaft, 16, a guide rail, 17, a screw rod, 18, a cylindrical roller bearing, 19, a thrust bearing, 20, a dial scale, 21, a bearing mounting seat, 22, a guide rail gap adjusting block, 23, a tapered hole, 24, an annular groove, 25 and an inclined threaded hole.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a cutter device for cold extrusion mirror finishing of a sphere-like surface without removing materials, as shown in fig. 1-5, comprises a workpiece clamping mechanism 1, a rotating shaft connecting block 3 and a cutter rotating mechanism 5, the cutter rotating mechanism 5 comprises a rotating fixed seat 10, a motor 14 and a cutter rotating shaft 15, the rotating fixed seat 10 is arranged on the rotating shaft connecting block 3, a feeding mechanism 4 is arranged between the rotary fixed seat 10 and the rotary shaft connecting block 3, a cutter rotary shaft 15 is rotatably arranged at one side of the rotary fixed seat 10, the other side of the rotary fixed seat 10 is provided with a motor 14, the output shaft of the motor 14 is connected with a cutter rotating shaft 15, one end of the cutter rotating shaft 15 is connected with a retainer 7, the retainer 7 is provided with an inner groove, and the inner wall of the inner groove is uniformly provided with a plurality of balls 6. The inner groove is round platform shape, evenly is provided with a plurality of mounting holes on the inner wall of inner groove, and ball 6 pressure equipment is gone into in the mounting hole of holder 7.
The cutter comprises a retainer 7 and a plurality of balls 6, and the cutter adopts a multi-ball form, so that the non-material-removing cold extrusion mirror finishing on the surface of the ball head is realized more quickly and effectively. The workpiece clamping mechanism 1 is connected with a main shaft of a machine tool to provide rotary motion for the workpiece 2; the rotating shaft connecting block 3 is connected with a rotating shaft of a machine tool cutter, and provides back-and-forth rotating motion for the cutter to realize the swinging of the cutter; the tool rotating mechanism 5 drives the tool to rotate around the axis by a motor 14; the feed mechanism 4 controls the feed amount of the tool to obtain a desired surface finish quality. The workpiece 2 rotates around the main shaft, the cutter rotates, the cutter swings back and forth around the axis of the sphere center, three types of matching motions form a net-shaped processing track on the surface of the workpiece 2, and the surface processing quality is improved.
The output shaft of the motor 14 is connected with the cutter rotating shaft 15 through a coupling 13.
Three angular contact ball bearings 9 sleeved on the cutter rotating shaft 15 are installed inside the rotary fixing seat 10, and every two adjacent angular contact ball bearings 9 are arranged oppositely, so that the arrangement can bear bidirectional axial force. The angular contact ball bearing 9 provides relative rotation between the tool rotating shaft 15 and the rotary holder 10.
The other end of the screw rod 17 is provided with a dial 20, and the dial 20 can provide visual display for the feeding amount.
Two thrust bearings 19 sleeved on the screw rod 17 are arranged in the bearing mounting seat 21, and a cylindrical roller bearing 18 is arranged between the two thrust bearings 19. The middle part of the screw rod 17 is provided with a circle of steps, the thrust bearing 19 and the cylindrical roller bearing 18 are positioned between the steps and the dial 20, the outside of the screw rod 17 positioned on the dial 20 is screwed with the locking nut 12, and the steps, the dial 20 and the locking nut 12 realize the axial positioning of the bearing.
The retainer 7 adopt polytetrafluoroethylene material to make, the retainer that polytetrafluoroethylene made has suitable hardness and self-lubricating action, can support ball 6 and carry out the roll extrusion to the ball surface, has certain elasticity and lubricating action again simultaneously, avoids ball 6 to produce visible mar to the ball surface extrusion.
The end of the cutter rotating shaft 15 is provided with a mounting groove for accommodating the holder 7, the opening of the mounting groove is provided with a tapered hole 23, the holder 7 is provided with a tapered part matched with the tapered hole, and the tapered hole 23 and the tapered part are matched to enable the cutter rotating shaft 15 to support a cutter as much as possible, so that the requirement of machining cutting force is met.
The middle of the retainer 7 is provided with a ring of annular grooves 24, the section of the annular grooves 24 is in a right trapezoid shape, the end part of the cutter rotating shaft 15 is uniformly provided with a plurality of inclined threaded holes 25 around the circumference, the inclined threaded holes 25 penetrate through the inner wall of the mounting groove, each inclined threaded hole 25 is internally provided with a bolt, one end of each bolt is obliquely inserted into the annular groove 24, one end of each bolt abuts against the conical surface of the inclined edge of the right trapezoid, connection and fixation between the retainer 7 and the cutter rotating shaft 15 are realized, and meanwhile good contact between the conical part of the retainer 7 and the conical hole 23 of the cutter rotating shaft 15 can be ensured.
A rotary dustproof ring 8 is arranged on the other side of the rotary fixed seat 10, the rotary dustproof ring 8 is sleeved on the cutter rotating shaft 15, the rotary dustproof ring 8 can protect the rotary mechanism, and cutting fluid and the like in the machining process are prevented from entering a rotary assembly to cause damage to a cutter system; a gap is formed in the middle of the rotary fixing seat 10, and the coupler 13 and the locking nut 12 are installed in the gap, so that the installation and the maintenance are convenient; the upper portion cover of rotatory fixing base 10 has the protection casing, and the protection casing all covers breach, shaft coupling 13 and lock nut 12 inside, and the protection casing provides the guard action, avoids impurity and wastes material to get into rotating assembly.
The feeding mechanism 4 can be additionally provided with a force sensor, the rolling pressure is monitored, more visual observation is realized, the debugging and processing adjustment of an operator are facilitated, and the force sensor can be selectively arranged in the mounting groove and connected with the retainer 7; the feeding mechanism 4 can be added with a motor, and is jointly controlled with a machine tool PLC to realize automatic feeding, realize the automatic control of the machine tool and obtain more stable process control, and the added motor can be arranged on the rotating shaft connecting block 3 and is positioned at the outer side of the guide rail 16.
Claims (10)
1. The utility model provides a cutter device of non-removal material cold extrusion mirror surface processing of spheroidal surface which characterized in that: comprises a workpiece clamping mechanism (1), a rotating shaft connecting block (3) and a cutter rotating mechanism (5), the cutter rotating mechanism (5) comprises a rotating fixed seat (10), a motor (14) and a cutter rotating shaft (15), the rotating fixed seat (10) is arranged on the rotating shaft connecting block (3), a feeding mechanism (4) is arranged between the rotary fixed seat (10) and the rotary shaft connecting block (3), a cutter rotating shaft (15) is rotatably arranged at one side of the rotary fixed seat (10), a motor (14) is arranged on the other side of the rotary fixed seat (10), an output shaft of the motor (14) is connected with a cutter rotating shaft (15), one end of the cutter rotating shaft (15) is connected with a retainer (7), the retainer (7) is provided with an inner groove, and the inner wall of the inner groove is uniformly provided with a plurality of balls (6).
2. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as defined in claim 1, wherein: the rotary fixing seat (10) is internally provided with three angular contact ball bearings (9) sleeved on the cutter rotating shaft (15), and every two adjacent angular contact ball bearings (9) are arranged oppositely.
3. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as defined in claim 1, wherein: feed mechanism (4) include guide rail (16), lead screw (17) and bearing mount pad (21), rotation axis connecting block (3) on install guide rail (16), rotating holder (10) slidable mounting on guide rail (16), bearing mount pad (21) are installed to one side of this rotating holder (10) lower part, bearing mount pad (21) internal rotation install lead screw (17), this lead screw (17) one end and guide rail (16) threaded connection.
4. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as set forth in claim 3, wherein: the guide rail (16) is a dovetail guide rail.
5. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as set forth in claim 3, wherein: and a dial (20) is installed at the other end of the screw rod (17).
6. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as set forth in claim 3, wherein: two thrust bearings (19) sleeved on the screw rod (17) are arranged in the bearing mounting seat (21), and a cylindrical roller bearing (18) is arranged between the two thrust bearings (19).
7. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as defined in claim 1, wherein: the retainer (7) is made of polytetrafluoroethylene materials.
8. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as defined in claim 1, wherein: the end part of the cutter rotating shaft (15) is provided with a mounting groove for accommodating the retainer (7), the opening of the mounting groove is provided with a tapered hole (23), and the retainer (7) is provided with a tapered part matched with the tapered hole.
9. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as set forth in claim 8, wherein: the cutting tool is characterized in that a circle of annular groove (24) is arranged in the middle of the retainer (7), the section of the annular groove (24) is in a right trapezoid shape, a plurality of inclined threaded holes (25) are uniformly formed in the end portion of the cutter rotating shaft (15) around the circumference, the inclined threaded holes (25) penetrate through the inner wall of the mounting groove, a bolt is installed in each inclined threaded hole (25), one end of the bolt is obliquely inserted into the annular groove (24), and one end of the bolt abuts against the conical surface where the inclined edge of the right trapezoid is located.
10. The tool assembly for cold extrusion mirror finishing of spheroidal surfaces as defined in claim 1, wherein: and a rotary dustproof ring (8) is installed on the other side of the rotary fixed seat (10), and the rotary dustproof ring (8) is sleeved on the cutter rotating shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743570.5A CN111906686A (en) | 2020-07-29 | 2020-07-29 | Cutter device for cold extrusion mirror surface processing of material not removed on sphere-like surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743570.5A CN111906686A (en) | 2020-07-29 | 2020-07-29 | Cutter device for cold extrusion mirror surface processing of material not removed on sphere-like surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111906686A true CN111906686A (en) | 2020-11-10 |
Family
ID=73287645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010743570.5A Pending CN111906686A (en) | 2020-07-29 | 2020-07-29 | Cutter device for cold extrusion mirror surface processing of material not removed on sphere-like surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111906686A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191025001A (en) * | 1910-10-27 | 1911-01-19 | George Wedderburn Hume | Improvements in Pipe Joints. |
| US3348398A (en) * | 1964-02-20 | 1967-10-24 | Ohio Brass Co | Manufacturing valve balls |
| JPH09131664A (en) * | 1995-11-02 | 1997-05-20 | Sun Tec:Kk | Tool and method for working spherical surface |
| CN101628378A (en) * | 2009-03-13 | 2010-01-20 | 宁波市精恒凯翔机械有限公司 | Spherical (spherical surface) mirror surface rolling lathe |
| CN201744920U (en) * | 2010-04-30 | 2011-02-16 | 沈阳第一机床厂 | Roller burnishing tool for machining excircle, R surface and end surface |
| CN105014500A (en) * | 2015-05-15 | 2015-11-04 | 贵州大学 | Precise cold extrusion male die spherical face grinding device |
| CN205669707U (en) * | 2016-06-02 | 2016-11-02 | 佛山市耀世照明电器有限公司 | Lamp connector oblique top fit structure |
| CN109877527A (en) * | 2019-02-01 | 2019-06-14 | 浙江工业大学 | Flexible Transmission ultrasound flank of tooth rolling tool |
| CN210066071U (en) * | 2019-04-04 | 2020-02-14 | 漳州市永良针纺机械有限公司 | Circular knitting machine slider anti-vibration structure |
-
2020
- 2020-07-29 CN CN202010743570.5A patent/CN111906686A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191025001A (en) * | 1910-10-27 | 1911-01-19 | George Wedderburn Hume | Improvements in Pipe Joints. |
| US3348398A (en) * | 1964-02-20 | 1967-10-24 | Ohio Brass Co | Manufacturing valve balls |
| JPH09131664A (en) * | 1995-11-02 | 1997-05-20 | Sun Tec:Kk | Tool and method for working spherical surface |
| CN101628378A (en) * | 2009-03-13 | 2010-01-20 | 宁波市精恒凯翔机械有限公司 | Spherical (spherical surface) mirror surface rolling lathe |
| CN201744920U (en) * | 2010-04-30 | 2011-02-16 | 沈阳第一机床厂 | Roller burnishing tool for machining excircle, R surface and end surface |
| CN105014500A (en) * | 2015-05-15 | 2015-11-04 | 贵州大学 | Precise cold extrusion male die spherical face grinding device |
| CN205669707U (en) * | 2016-06-02 | 2016-11-02 | 佛山市耀世照明电器有限公司 | Lamp connector oblique top fit structure |
| CN109877527A (en) * | 2019-02-01 | 2019-06-14 | 浙江工业大学 | Flexible Transmission ultrasound flank of tooth rolling tool |
| CN210066071U (en) * | 2019-04-04 | 2020-02-14 | 漳州市永良针纺机械有限公司 | Circular knitting machine slider anti-vibration structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201110 |
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| RJ01 | Rejection of invention patent application after publication |