CN113997199A - Tool clamp for tapered roller bearing inner ring and inner ring raceway processing method thereof - Google Patents
Tool clamp for tapered roller bearing inner ring and inner ring raceway processing method thereof Download PDFInfo
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- CN113997199A CN113997199A CN202111323282.5A CN202111323282A CN113997199A CN 113997199 A CN113997199 A CN 113997199A CN 202111323282 A CN202111323282 A CN 202111323282A CN 113997199 A CN113997199 A CN 113997199A
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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
- B24B41/06—Work supports, e.g. adjustable steadies
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Abstract
本发明涉及的圆锥滚子轴承内圈用工装夹具，其包括夹具本体和轴向拉杆；所述夹具本体由依次设置的连接段和定位段组成；连接段与机床床头连接盘通过紧固件可拆卸的连接；定位段包括多个瓣簧，每个瓣簧的外侧面设置有轴向定位部件及径向定位部件，夹紧固定时，所述轴向定位部件上的轴向定位面与轴承内圈大端面抵接，径向定位部件上的径向定位面在瓣簧的弹力的作用下抵顶于圆锥孔内壁。其通过在定位段上的瓣簧上设置轴向定位面与径向定位面能够快速的实现轴承内圈的夹紧与拆卸，提高了加工效率。
The tooling fixture for the inner ring of the tapered roller bearing according to the present invention comprises a fixture body and an axial pull rod; the fixture body is composed of a connecting section and a positioning section arranged in sequence; Detachable connection; the positioning segment includes a plurality of flap springs, and the outer side of each flap spring is provided with an axial positioning part and a radial positioning part, when the axial positioning part is clamped and fixed, the axial positioning surface on the axial positioning part and the axial positioning part. The large end surface of the inner ring of the bearing abuts against, and the radial positioning surface on the radial positioning component abuts against the inner wall of the conical hole under the action of the elastic force of the flap spring. By setting the axial positioning surface and the radial positioning surface on the flap spring on the positioning section, the inner ring of the bearing can be clamped and disassembled quickly, and the processing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a tool clamp for an inner ring of a tapered roller bearing and a method for machining an inner ring raceway of the tapered roller bearing.
Background
The tapered roller bearing with the inner diameter provided with the taper hole has the advantages of being capable of embodying installation and being convenient to disassemble in the aspect of installation use, and the bearing clearance can be finely adjusted. However, during the process of machining the inner raceway on the spring clamp, additional tooling is sometimes needed, such as a bush which is the most important part, and the bearing needs to support the installation and the disassembly of each workpiece by the bush during the machining process. The processing method is complicated, the efficiency is low, potential safety hazards exist in the dismounting process, and the quality is difficult to guarantee due to the existence of mounting errors.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a tool clamp for a tapered roller bearing inner ring and a processing method of an inner ring raceway thereof, which can realize the rapid clamping of the bearing inner ring and have high processing precision.
In order to achieve the purpose, the invention adopts the following technical scheme:
the inner hole of the tapered roller bearing inner ring is a conical hole, and the clamp comprises a clamp body and an axial pull rod; the clamp body consists of a connecting section and a positioning section which are arranged in sequence; the connecting section is detachably connected with a connecting disc at the head of the machine tool through a fastener; the positioning section comprises a plurality of petal springs, an axial positioning component and a radial positioning component are arranged on the outer side surface of each petal spring, when clamping and fastening are carried out, an axial positioning surface on the axial positioning component is abutted against the large end surface of the bearing inner ring, and a radial positioning surface on the radial positioning component is abutted against the inner wall of the conical hole under the action of the elastic force of the petal springs; the axial pull rod is detachably fixed on the inner end side wall of the inner cavity of the positioning section along the axial direction, when the pull rod applies pulling force to the direction far away from the positioning section, the valve spring on the positioning section contracts towards the inner cavity of the positioning section and stores energy, and when the pulling force of the pull rod disappears, the valve spring on the positioning section resets.
Furthermore, an axial flange is arranged in the middle of each petal spring, an axial positioning component is axially mounted on the axial flange and comprises an axial positioning rod, the axial positioning rod is axially detachably arranged on the axial flange, the front end of the axial positioning rod is provided with an axial positioning surface, the axial positioning surface is clamped and fastened regularly, and the axial positioning surface at the front end of the axial positioning rod is abutted to the large end face of the bearing inner ring.
Further, an external thread is arranged on the axial positioning rod, an axial threaded hole is arranged on the axial flange, and the external thread of the axial positioning rod is screwed in the axial threaded hole; the outer thread of the axial positioning rod is also provided with a first locking nut, and the first locking nut is used for fastening the axial positioning rod at the axial threaded hole.
Furthermore, the radial positioning component is arranged at the front end of the reed along the radial direction, the radial positioning component comprises a radial positioning rod, the front end of the reed is provided with a radial mounting hole, and the radial positioning rod is detachably fixed in the radial mounting hole; the outer end of the radial positioning rod is provided with the radial positioning surface, and when the radial positioning rod is clamped and positioned, the radial positioning surface at the outer end of the radial positioning rod is abutted against the inner wall of the conical hole under the action of the elastic force of the flap spring.
Furthermore, the radial positioning rod is provided with an external thread, an internal thread is arranged in the radial mounting hole, and the external thread of the radial positioning rod is screwed with the internal thread of the radial mounting hole; and a second locking nut is further arranged on the external thread of the radial positioning rod and used for fastening the radial positioning rod at the internal thread hole.
The clamp further comprises a hydraulic oil cylinder, the hydraulic oil cylinder is positioned on one side, far away from the clamp body, of the connecting plate at the head of the machine tool, and a piston rod of the hydraulic oil cylinder is in driving connection with the pull rod.
Furthermore, a threaded through hole is coaxially formed in the side wall of the inner cavity of the positioning section, the pull rod is of a bolt structure, one end of the bolt structure is fastened in the threaded through hole, a nut of the bolt structure is located in the inner cavity of the positioning section, and one end, far away from the nut, of the bolt structure extends out of the positioning section and a connecting disc at the head of the machine tool and is fixedly connected with a piston rod of a hydraulic oil cylinder; and a fastening nut is also arranged between the nut and the thread through hole.
Furthermore, the end face of the connecting section is provided with a connecting flange, the fastening piece is a bolt and a nut, and the connecting flange is detachably fixed on a connecting disc of a machine tool head through the bolt and the nut.
Further, an annular groove is formed in the end face, close to one side of the connecting section of the fixture positioning section body, of the connecting disc at the head of the machine tool, and the outer diameter of the annular groove is larger than that of the positioning section of the fixture body.
The rolling processing method of the tapered roller bearing inner ring, wherein the inner hole of the tapered roller bearing inner ring is a conical hole, and the angle of the conical hole is A, comprises the following steps:
(1) mounting the conical roller bearing inner ring of any one of claims 1-9 on a connecting disc at the head of a machine tool by using a fixture;
(2) adjusting a connecting disc of a machine tool head to a position forming an angle A with the horizontal direction anticlockwise, and then grinding a radial positioning surface and an axial positioning surface on the fixture;
(3) installing the tapered roller bearing inner ring on a tool clamp for the tapered roller bearing inner ring; and grinding the raceway of the bearing inner ring.
Compared with the prior art, the invention has the beneficial effects that:
according to the tool clamp for the inner ring of the tapered roller bearing, the axial positioning surface and the radial positioning surface are arranged on the leaf spring on the positioning section, so that the inner ring of the bearing can be clamped and disassembled quickly, and the processing efficiency is improved;
according to the processing method of the inner ring raceway of the tapered roller bearing, the axial positioning surface and the radial positioning surface of the grinding fixture are used, so that the supporting angle of the radial positioning surface is matched with the taper hole of the inner ring, the positioning precision is higher, and the size precision after grinding is ensured.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic view of a usage status of the embodiment of the present invention.
In the figure: 1. inner circle, 1.1, the taper hole, 1.2, the raceway, 2, the anchor clamps body, 2.1, flange, 2.2, axial flange, 2.3, the vestibule, 2.4, the lamella spring, 2.5, the screw through-hole, 3, the bolt, 4, the nut, 5, axial locating lever, 5.1, axial locating face, 6, first lock nut, 7, radial locating lever, 7.1, radial locating face, 8, second lock nut, 9, lathe head connection pad, 9.1, ring channel, 10, the pull rod, 11, fastening nut, 12, hydraulic cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1-2, the inner bore of the tapered roller bearing inner race 1 is a tapered bore 1.1, a raceway 1.2 adapted to a tapered roller is arranged on the outer circumferential surface of the bearing inner race 1, the taper direction of the inner raceway 1.2 is the same as the taper direction of the tapered bore 1.1, the fixture comprises a fixture body 2 and a pull rod 10, the fixture body 2 is composed of a connecting section and a positioning section which are sequentially arranged, and preferably, the connecting section and the positioning section are integrally arranged.
The connecting section is detachably and fixedly connected with a machine tool head connecting disc 9 through a fastener; specifically, a connecting flange 2.1 is arranged on the end face of the connecting section, the fastening pieces are bolts 3 and nuts 4, and the connecting flange 2.1 is detachably fixed on a connecting disc 9 at the head of a machine tool through the bolts 3 and the nuts 4; during installation, the thread section of the bolt 3 sequentially penetrates through the through holes on the machine tool head connecting disc 9 and the connecting flange 2.1 to be screwed and fixed with the nut 4. It should be noted that the clamp body 2 is arranged coaxially with the machine tool head connecting plate 9.
The location section includes a plurality of lamella springs 2.4, a plurality of lamella spring 2.4 circumference equipartitions set up, every lamella spring 2.4's lateral surface is provided with axial positioning part and radial positioning part, it is specific, every lamella spring 2.4 middle part is provided with axial flange 2.2, axial positioning part is installed on axial flange 2.2 along the axial, axial positioning face 5.1 on the axial positioning part and the big terminal surface butt of bearing inner race 1, it explains that, the quantity of lamella spring 2.4 can be selected according to actual need, can be 10, 12 or 14. The number of the reed 2.4 in this embodiment is 10.
The large end surface of the bearing inner ring 1 is the end corresponding to the large diameter of the conical hole 1.1. The axial positioning component in the embodiment comprises an axial positioning rod 5, the axial positioning rod 5 is detachably arranged on the axial flange 2.2 along the axial direction, an axial positioning surface 5.1 is arranged at the front end of the axial positioning rod 5, and the axial positioning surface 5.1 at the front end of the axial positioning rod 5 is abutted to the large end surface of the bearing inner ring 1. The positioning device is used for axially positioning the large end surface of the bearing inner ring 1. Specifically, the axial positioning rod 5 is provided with an external thread, the axial flange 2.2 is provided with an axial threaded hole, and the external thread of the axial positioning rod 5 is screwed in the axial threaded hole. Still be provided with first lock nut 6 on the external screw thread of axial positioning pole 5, first lock nut 6 is used for fastening axial positioning pole 5 in axial screw hole department, prevents that axial positioning pole 5 is not hard up.
Radial positioning part is along radially setting up at lamella spring 2.4 front end, and during the tight location of clamp, the locating surface on the radial positioning part supports under the effect of lamella spring 2.4's elasticity and withstands in 1.1 inner wall of circular cone hole, and is specific, radial positioning part includes radial positioning rod 7, and lamella spring 2.4 front end is provided with radial mounting hole, and radial positioning rod 7 detachable is fixed in the radial mounting hole. Specifically, radial positioning rod 7 in this embodiment is provided with the external screw thread, is provided with the internal thread in the radial mounting hole, and radial positioning rod 7's external screw thread connects in the internal thread of radial mounting hole soon. The outer end of the radial positioning rod 7 is provided with a radial positioning surface 7.1, and when the clamping and positioning are carried out, the radial positioning surface 7.1 at the outer end of the radial positioning rod 7 is abutted against the inner wall of the conical hole 1.1 under the action of the elastic force of the reed 2.4.
Still be provided with second lock nut 8 on the external screw thread of radial positioning pole 7, second lock nut 8 is used for fastening radial positioning pole 7 in internal screw hole department, prevents that radial positioning pole 7 is not hard up. Preferably, a tangent plane is arranged on the outer side surface of the petal spring 2.4, and the second locking nut 8 is pressed against the tangent plane of the outer side surface of the petal spring 2.4. It should be noted that the section is arranged to increase the contact area between the second lock nut 8 and the outer side surface of the petal spring 2.4, so as to improve the anti-loosening performance.
The axial pull rod 10 is arranged along the axial direction and is detachably fixed on the inner end side wall of the inner cavity of the positioning section. When the pull rod 10 exerts pulling force to keeping away from the orientation section direction, lamella spring 2.4 on the orientation section is to the contraction of orientation section inner chamber and energy storage, and when the pulling force of pull rod 10 disappears, lamella spring 2.4 on the orientation section resets.
The clamp further comprises a hydraulic oil cylinder 12, the hydraulic oil cylinder 12 is located on one side, far away from the clamp body 2, of the machine tool head connecting plate 9, and a piston rod of the hydraulic oil cylinder 12 is in driving connection with the pull rod 10. Specifically, coaxial threaded through hole 2.5 has been seted up on the positioning section inner chamber lateral wall, and pull rod 10 is bolted construction, and bolted construction's one end fastens in threaded through hole 2.5, and bolted construction's nut is located the inner chamber of positioning section, and bolted construction keeps away from the one end of nut and stretches out positioning section and lathe head of a bed connection pad 9 and hydraulic cylinder 12's piston rod fixed connection, and hydraulic cylinder 12 is located lathe head of a bed connection pad 9 and keeps away from 2 one side of anchor clamps body and be fixed in the lathe. A fastening nut 11 is also arranged between the nut and the thread through hole 2.5. Used for preventing the bolt structure from loosening.
The inner surface of the petal spring 2.4 of the present embodiment is a tapered surface, and the radial thickness of the petal spring 2.4 becomes gradually thicker from the front end to the rear end. The conical surface of the inner surface of the petal spring 2.4 can improve the elastic strength of the petal spring 2.4. The material of the jig main body 2 in this embodiment is spring steel, and preferably spring steel 65 MN.
In order to increase the elastic deformation capacity of the clamp body 2, an annular groove 9.1 is formed in the end face of one side, close to the connecting section of the clamp body 2, of the machine tool bed head connecting disc 9, the outer diameter of the annular groove 9.1 is larger than the maximum outer diameter of the positioning section of the clamp body 2, when the clamp is used, the annular groove 9.1 and the end face of the connecting flange 2.1 on the connecting section form a buffer cavity, the pull rod 10 can conveniently exert axial tension on the inner end face of the positioning section of the clamp to generate elastic deformation, and meanwhile deformation generated by the inner end face of the positioning section under the action of the tension can be conveniently accommodated.
When the clamp is used, a piston rod of the hydraulic oil cylinder 12 contracts to drive the pull rod 10 to move towards the direction far away from the positioning section, so that axial tension is provided for the clamp body 2. The pull rod 10 applies pulling force to the inner end side of the inner cavity of the positioning section, the leaf spring 2.4 contracts towards the inner cavity of the positioning section, the large end face of the inner ring of the bearing is abutted to the axial positioning face 5.1, the piston rod of the hydraulic oil cylinder 12 extends out to drive the pull rod 10 to reset, the leaf spring 2.4 expands to drive the radial top face to abut against the inner wall of the conical hole 1.1 of the inner ring 1 of the bearing, and clamping and fixing are completed.
It should be noted that, in the tooling fixture for the tapered roller bearing inner ring in this embodiment, the axial positioning surface 5.1 and the radial positioning surface 7.1 are arranged on the leaf spring 2.4 on the positioning section, so that the clamping and the dismounting of the bearing inner ring 1 can be rapidly realized, and the processing efficiency is improved.
Example 2
As shown in fig. 1-3, the method for processing the raceway of the inner ring of the tapered roller bearing, wherein the inner hole of the inner ring of the tapered roller bearing is a conical hole 1.1, and the angle of the conical hole 1.1 is a, comprises the following steps:
(1) fixedly mounting the inner ring of the tapered roller bearing in the embodiment 1 on a connecting disc 9 at the head of a machine tool by using a jig;
(2) adjusting a connecting disc 9 of a machine tool head to a position forming an angle A with the horizontal direction anticlockwise, and then grinding a radial positioning surface 7.1 and an axial positioning surface 5.1 of the clamp; specifically, after the axial positioning rod 5 and the radial positioning rod 7 are installed at proper positions, an axial positioning surface 5.1 at the front end of the axial positioning rod 5 and a radial positioning surface 7.1 at the outer end of the radial positioning rod 7 are ground through a machine tool grinding wheel respectively, and the maximum diameter corresponding to the radial positioning surface 7.1 after grinding is larger than the maximum aperture of the conical hole 1.1.
(3) Installing the tapered roller bearing inner ring on a tool clamp for the tapered roller bearing inner ring; specifically, the hydraulic oil cylinder 12 is controlled to contract, the piston rod exerts pulling force on the clamp body 2 through the pull rod 10, the petal springs 2.4 contract, the bearing inner ring 1 is manually installed on the clamp, the hydraulic oil cylinder 12 is controlled to extend out, the pull rod 10 returns to the original position, the petal springs 2.4 expand, the radial positioning surfaces 7.1 of the radial positioning rods 7 abut against the inner wall of the conical hole 1.1 of the bearing inner ring 1, and the bearing inner ring 1 is clamped tightly.
(4) And grinding the inner raceway 1.2. After grinding is finished, the hydraulic oil cylinder 12 is controlled to contract, the piston rod exerts pulling force on the clamp body 2 through the pull rod 10, the reed 2.4 contracts, and the bearing inner ring 1 is taken down from the clamp.
It should be noted that in the method for processing the tapered roller bearing inner ring raceway according to the embodiment, the axial positioning surface 5.1 and the radial positioning surface 7.1 of the grinding fixture are used, so that the supporting angle of the radial positioning surface 7.1 is matched with the conical surface of the conical hole 1.1 of the bearing inner ring 1, the positioning accuracy is higher, and the size accuracy after grinding is ensured.
For more clearly explaining the method, the following will take the example of machining the IR-239549T inner race 1.2 as an example to describe in detail, the angle of the inner diameter taper hole of the inner race 1.2 is 2 degrees 23' 9.4 ", a spring clamp suitable for the size of the bearing inner race 1 is selected, the inner diameter positioning fulcrum is adjusted to be 0.35mm to 0.45mm larger than the inner diameter size of the bearing inner race 1, and the fixing is tight. The bed head is anticlockwise pulled to the position of 2 degrees 23' 9.4 "for grinding the inner radial positioning surface of the clamp, so that the angle of the inner diameter positioning fulcrum is matched with the inner diameter conical surface, and the inner diameter positioning fulcrum is controlled within 0.30mm larger than the nominal inner diameter size when the positioning fulcrum is guaranteed to be ground. The spring clamp has expansion and contraction force, so the spring clamp cannot be loosened too much, otherwise the bearing inner ring 1 is easy to drop or generate abrasion; too tight, otherwise the bearing inner ring 1 is easily deformed, resulting in a wall thickness difference. And then adjusting the position of the end face positioning fulcrum and grinding the end face positioning surface, thereby finishing the trimming of the fixture. And controlling the hydraulic oil cylinder 12 to contract, retracting the pull rod 10 connected with the spring clamp at the moment, contracting the spring clamp, manually installing the bearing inner ring 1 on the clamp, controlling the hydraulic oil cylinder 12 to extend out, returning the pull rod 10 to the original position, expanding the spring clamp, and clamping the bearing inner ring 1, so that the clamping of the bearing inner ring 1 is completed.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Tapered roller bearing is frock clamp for inner race, the hole of tapered roller bearing inner race is the taper hole, its characterized in that: the clamp comprises a clamp body and an axial pull rod; the clamp body consists of a connecting section and a positioning section which are arranged in sequence; the connecting section is detachably connected with a connecting disc at the head of the machine tool through a fastener; the positioning section comprises a plurality of petal springs, an axial positioning component and a radial positioning component are arranged on the outer side surface of each petal spring, when clamping and fastening are carried out, an axial positioning surface on the axial positioning component is abutted against the large end surface of the bearing inner ring, and a radial positioning surface on the radial positioning component is abutted against the inner wall of the conical hole under the action of the elastic force of the petal springs; the axial pull rod is detachably fixed on the inner end side wall of the inner cavity of the positioning section along the axial direction, when the pull rod applies pulling force to the direction far away from the positioning section, the valve spring on the positioning section contracts towards the inner cavity of the positioning section and stores energy, and when the pulling force of the pull rod disappears, the valve spring on the positioning section resets.
2. The tool clamp for the tapered roller bearing inner ring according to claim 1, characterized in that: the middle of each petal spring is provided with an axial flange, the axial positioning component is axially mounted on the axial flange and comprises an axial positioning rod, the axial positioning rod is axially detachably arranged on the axial flange, the front end of the axial positioning rod is provided with the axial positioning surface, the axial positioning surface is clamped and fastened for timing, and the axial positioning surface at the front end of the axial positioning rod is abutted to the large end face of the bearing inner ring.
3. The tooling clamp for the tapered roller bearing inner ring according to claim 2, characterized in that: the axial positioning rod is provided with an external thread, the axial flange is provided with an axial threaded hole, and the external thread of the axial positioning rod is screwed in the axial threaded hole; the outer thread of the axial positioning rod is also provided with a first locking nut, and the first locking nut is used for fastening the axial positioning rod at the axial threaded hole.
4. The tool clamp for the tapered roller bearing inner ring according to claim 1, characterized in that: the radial positioning component is arranged at the front end of the reed along the radial direction and comprises a radial positioning rod, the front end of the reed is provided with a radial mounting hole, and the radial positioning rod is detachably fixed in the radial mounting hole; the outer end of the radial positioning rod is provided with the radial positioning surface, and when the radial positioning rod is clamped and positioned, the radial positioning surface at the outer end of the radial positioning rod is abutted against the inner wall of the conical hole under the action of the elastic force of the flap spring.
5. The tooling clamp for the tapered roller bearing inner ring according to claim 4, characterized in that: the radial positioning rod is provided with an external thread, an internal thread is arranged in the radial mounting hole, and the external thread of the radial positioning rod is screwed with the internal thread of the radial mounting hole; and a second locking nut is further arranged on the external thread of the radial positioning rod and used for fastening the radial positioning rod at the internal thread hole.
6. The tool clamp for the tapered roller bearing inner ring according to claim 1, characterized in that: the clamp is characterized by further comprising a hydraulic oil cylinder, the hydraulic oil cylinder is located on one side, far away from the clamp body, of the connecting plate at the head of the machine tool, and a piston rod of the hydraulic oil cylinder is in driving connection with the pull rod.
7. The tool clamp for the tapered roller bearing inner ring according to claim 1, characterized in that: the side wall of the inner cavity of the positioning section is coaxially provided with a threaded through hole, the pull rod is of a bolt structure, one end of the bolt structure is fastened in the threaded through hole, a nut of the bolt structure is positioned in the inner cavity of the positioning section, and one end of the bolt structure, far away from the nut, extends out of the positioning section and a connecting disc at the head of a machine tool and is fixedly connected with a piston rod of a hydraulic oil cylinder; and a fastening nut is also arranged between the nut and the thread through hole.
8. The tool clamp for the tapered roller bearing inner ring according to claim 1, characterized in that: the end face of the connecting section is provided with a connecting flange, the fastening piece is a bolt and a nut, and the connecting flange is detachably fixed on a connecting disc at the head of the machine tool through the bolt and the nut.
9. The tool clamp for the inner ring of the tapered roller bearing according to any one of claims 1 to 8, characterized in that: the machine tool head connecting disc is close to an annular groove is formed in the end face of one side of the fixture positioning section body connecting section, and the outer diameter of the annular groove is larger than that of the positioning section of the fixture body.
10. The processing method of the inner ring raceway of the tapered roller bearing is characterized in that an inner hole of the inner ring of the tapered roller bearing is a conical hole, and the angle of the conical hole is A: the method comprises the following steps:
(1) mounting the conical roller bearing inner ring of any one of claims 1-9 on a connecting disc at the head of a machine tool by using a fixture;
(2) adjusting a connecting disc of a machine tool head to a position forming an angle A with the horizontal direction anticlockwise, and then grinding a radial positioning surface and an axial positioning surface on the fixture;
(3) installing the tapered roller bearing inner ring on a tool clamp for the tapered roller bearing inner ring; and grinding the raceway of the bearing inner ring.
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| CN202111323282.5A CN113997199A (en) | 2021-11-10 | 2021-11-10 | Tool clamp for tapered roller bearing inner ring and inner ring raceway processing method thereof |
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| CN202111323282.5A CN113997199A (en) | 2021-11-10 | 2021-11-10 | Tool clamp for tapered roller bearing inner ring and inner ring raceway processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115519474A (en) * | 2022-10-18 | 2022-12-27 | 慈溪市特种轴承有限公司 | Positioning device of conical bearing and reverse positioning grinding method thereof |
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