CN215698004U

CN215698004U - Precision bearing inner race outer ball groove processingequipment

Info

Publication number: CN215698004U
Application number: CN202122078261.3U
Authority: CN
Inventors: 罗飞
Original assignee: Suzhou Hengfuwei Precision Technology Co ltd
Current assignee: Suzhou Hengfuwei Precision Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-01
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a device for processing an outer ball groove of an inner ring of a precision bearing, which comprises a mounting substrate and a round sleeve; the left side of the upper surface of the mounting base plate is provided with a mounting vertical plate, a cutter handle is rotationally connected in a rotary hole formed in the upper end of the mounting vertical plate, a spline rod is arranged at the right end of the cutter handle, the right end of the spline rod is rotationally connected with a cutter bar, a fixed frame is arranged between the middle part of the outer arc surface of the cutter bar and the mounting base plate, a cutting cutter is rotationally connected in a notch formed in the right end of the cutter bar through a rotary shaft, and a long round hole is formed in the lower end of the cutting cutter; the round sleeve is connected to the outer portion of the spline rod in a sliding mode, the dovetail ring groove formed in the right end of the outer arc surface of the round sleeve is connected with the adjusting seat in a sliding mode, the lower end of the adjusting seat is connected with the linkage rod in a rotating mode through the rotating shaft, and the right end of the linkage rod is connected with the long round hole in a rotating mode through the rotating shaft. The utility model discloses a can avoid cutting sword and bearing inner race relative position's skew in the course of working, improve the machining precision of bearing inner race.

Description

Precision bearing inner race outer ball groove processingequipment

Technical Field

The utility model relates to the technical field of precision hardware processing, in particular to a device for processing an outer ball groove of an inner ring of a precision bearing.

Background

The bearing comprises an inner ring, an outer ring and balls arranged between the inner ring and the outer ring, wherein an outer ball groove is formed in the middle of the outer circular surface of the inner ring of the bearing, an inner ball groove is formed in the middle of the inner circular surface of the outer ring of the bearing, the balls are located between the outer ball groove and the inner ball groove, and the processing of the inner ring of the bearing is the processing of the outer circular surface ball groove of the inner ring of the bearing. The traditional processing mode is that a lathe is used for carrying out turning operation on the outer circular surface of the bearing inner ring, in the turning process, the turning tool needs to reciprocate along with the appearance of the ball groove, the coordinate of the turning tool changes constantly, and the relative position of a cutting tool and the bearing inner ring changes constantly in the processing process, so that the processing precision of the bearing inner ring is low, and the whole precision of the bearing cannot be guaranteed. Therefore, the device for processing the outer ball groove of the inner ring of the precision bearing is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a device for machining an outer ball groove of an inner ring of a precision bearing, which can improve the machining precision of the inner ring of the bearing and can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a device for processing an outer ball groove of an inner ring of a precision bearing comprises a mounting substrate and a round sleeve;

the left side of the upper surface of the mounting base plate is provided with a mounting vertical plate, a cutter handle is rotationally connected in a rotary hole formed in the upper end of the mounting vertical plate, a spline rod is arranged at the right end of the cutter handle, the right end of the spline rod is rotationally connected with a cutter bar, a fixing frame is arranged between the middle part of the outer arc surface of the cutter bar and the mounting base plate, a cutting cutter is rotationally connected in a notch formed in the right end of the cutter bar through a rotary shaft, and a long round hole is formed in the lower end of the cutting cutter;

the round sleeve is connected to the outer portion of the spline rod in a sliding mode, an adjusting seat is connected to the right end of the outer arc surface of the round sleeve in a sliding mode in a dovetail groove, a linkage rod is connected to the lower end of the adjusting seat in a rotating mode through a rotating shaft, and the right end of the linkage rod is connected with the long round hole in a rotating mode through the rotating shaft.

Furthermore, the device also comprises a swing mechanism arranged in the middle of the upper surface of the mounting substrate.

Furthermore, the swing mechanism comprises a sliding block and a crossed spiral groove, the crossed spiral groove is formed in the outer portion of the round sleeve, and the sliding block is connected to the inner portion of the crossed spiral groove in a sliding mode.

Further, swing mechanism still includes fixing base and connecting rod, the fixing base sets up in mounting substrate's upper surface middle part, and the connecting rod passes through bolt fixed connection in the top opening of fixing base, and the upper end of connecting rod is rotated with the slider through the pivot and is connected.

Furthermore, installation round holes are formed in four corners of the upper surface of the installation substrate, and the installation position of the device is convenient to fix.

The machine tool is characterized by further comprising a machine tool main shaft positioned above the tool holder, wherein a three-grab chuck is arranged at the right end of the machine tool main shaft, and a hydraulic oil inlet of the three-grab chuck is communicated with a hydraulic oil outlet of a hydraulic power part inside the machine tool through an oil passage hole inside the machine tool main shaft.

Furthermore, the tool rest further comprises a driving gear and a driven gear, wherein the driving gear is arranged at the left end of the outer arc surface of the machine tool spindle, the driven gear is arranged at the left end of the outer arc surface of the tool holder, and the driven gear corresponds to the driving gear in position.

Compared with the prior art, the utility model has the beneficial effects that:

1. bolts penetrate through the mounting round holes in the mounting base plate to fix the mounting base plate on a workbench of a machine tool, so that the device is mounted; sleeving a bearing inner ring outside the three-grab chuck, and injecting hydraulic oil into the three-grab chuck through an oil channel hole in a machine tool spindle by a hydraulic power part in the machine tool through the adjustment of a machine tool control system to open the clamping jaws of the three-grab chuck so as to fix the bearing inner ring through the tension of the clamping jaws of the three-grab chuck; through the adjustment of a machine tool control system, a driving part in the machine tool drives a machine tool main shaft and an upper part to rotate, so that the rotation of the bearing inner ring is realized; the machining operation of the spherical groove of the bearing inner ring is realized through the swinging of the cutting knife, the position movement of the cutting knife in the machining process is avoided, the positions of all parts of the device are fixed, the deviation of the relative positions of the cutting knife and the bearing inner ring in the machining process is avoided, the machining precision of the bearing inner ring is improved, and the whole precision of the bearing is guaranteed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the installation structure of the slider and the crossed spiral groove of the present invention.

The figures in the drawings represent: 1. the tool comprises a tool handle, a spline rod 2, a tool bar 3, a cutting tool 4, a long round hole 5, a round sleeve 6, an adjusting seat 7, a linkage rod 8, a swing mechanism 9, a fixed seat 91, a connecting rod 92, a sliding block 93, a crossed spiral groove 94, a mounting base plate 10, a mounting vertical plate 11, a fixing frame 12, a machine tool spindle 13, a driving gear 14 and a driven gear 15.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the apparatus for machining an outer ball groove of an inner race of a precision bearing according to this embodiment includes a mounting substrate 10 and a round sleeve 6.

Wherein: the upper surface left side of mounting substrate 10 is equipped with installation riser 11, the rotatory downthehole rotation that the installation riser 11 upper end was seted up is connected with handle of a knife 1, the right side end department of handle of a knife 1 is equipped with spline rod 2, spline rod 2's right-hand member rotates and is connected with cutter arbor 3, be equipped with mount 12 between the extrados middle part of cutter arbor 3 and the mounting substrate 10, it is connected with cutting sword 4 to rotate through the pivot in the notch that the 3 right-hand members of cutter arbor were seted up, slotted hole 5 has been seted up to the lower extreme of cutting sword 4.

Wherein: the round sleeve 6 is connected to the outer portion of the spline rod 2 in a sliding mode, an adjusting seat 7 is connected to a dovetail groove formed in the right end of the outer arc surface of the round sleeve 6 in a sliding mode, the lower end of the adjusting seat 7 is connected with a linkage rod 8 in a rotating mode through a rotating shaft, and the right end of the linkage rod 8 is connected with the long round hole 5 in a rotating mode through the rotating shaft.

Wherein: the swinging mechanism 9 is arranged in the middle of the upper surface of the mounting substrate 10, the swinging mechanism 9 comprises a sliding block 93 and a crossed spiral groove 94, the crossed spiral groove 94 is arranged outside the round sleeve 6, and the sliding block 93 is connected to the inside of the crossed spiral groove 94 in a sliding manner; the swing mechanism 9 further comprises a fixed seat 91 and a connecting rod 92, the fixed seat 91 is arranged in the middle of the upper surface of the mounting substrate 10, the connecting rod 92 is fixedly connected in an upper opening of the fixed seat 91 through a bolt, the upper end of the connecting rod 92 is rotatably connected with a sliding block 93 through a rotating shaft, and mounting circular holes are formed in four corners of the upper surface of the mounting substrate 10; the three-jaw chuck is arranged at the right end of the machine tool spindle 13, and a hydraulic oil inlet of the three-jaw chuck is communicated with a hydraulic oil outlet of a hydraulic power component in the machine tool through an oil passage hole in the machine tool spindle 13; still include driving gear 14 and driven gear 15, driving gear 14 sets up in the extrados left end of lathe main shaft 13, and driven gear 15 sets up in the extrados left end of 1 hilt, and driven gear 15 corresponds with driving gear 14 position.

The working principle of the utility model is as follows:

bolts penetrate through mounting round holes in the mounting substrate 10 to fix the mounting substrate 10 on a workbench of a machine tool, and the driving gear 14 is meshed and connected with the driven gear 15, so that the mounting and fixing of the device are realized;

sleeving a bearing inner ring outside the three-grab chuck, and injecting hydraulic oil into the three-grab chuck by a hydraulic power part in the machine tool through an oil channel hole in the machine tool spindle 13 by adjusting a machine tool control system to open the clamping jaws of the three-grab chuck so as to fix the bearing inner ring by the tension of the clamping jaws of the three-grab chuck;

through the adjustment of a machine tool control system, a driving part in the machine tool drives a machine tool spindle 13 and an upper part to rotate, so that the rotation of the bearing inner ring is realized; meanwhile, a machine tool spindle 13 drives a cutter handle 1 to rotate through a driving gear 14 and a driven gear 15, the cutter handle 1 drives a round sleeve 6 to rotate through a spline rod 2, a sliding block 93 slides along one of spiral grooves of crossed spiral grooves 94 under the action of a connecting rod 92, so that the round sleeve 6 drives an upper part to move along the spline rod 2, the sliding block 93 slides to the end of the crossed spiral groove 94 to automatically turn, and the end enters the other spiral groove of the crossed spiral groove 94, so that the round sleeve 6 moves reversely, the round sleeve 6 drives the upper part to slide left and right along the spline rod 2, and the cutter bar 3 is fixed on the upper surface of a mounting substrate 10 through a fixing frame 12, so that the cutter bar 3 and a cutting cutter 4 cannot rotate along with the spline rod 2;

in the rotating process of the round sleeve 6, the adjusting seat 7 slides in the dovetail ring groove under the action of the linkage rod 8, so that the adjusting seat 7 is always kept fixed in position, at the moment, the round sleeve 6 pulls the cutting knife 4 through the adjusting seat 7, the linkage rod 8 and the long circular hole 5 to swing left and right through the rotating shaft in the middle, the right end of the linkage rod 8 rotates and slides in the long circular hole 5, the knife tip of the cutting knife 4 swings in an arc shape, and the round sleeve is matched with the rotating bearing inner ring to start to process a spherical groove on the bearing inner ring.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a precision bearing inner race outer ball ditch processingequipment which characterized in that: comprises a mounting substrate (10) and a round sleeve (6);

a mounting vertical plate (11) is arranged on the left side of the upper surface of the mounting base plate (10), a cutter handle (1) is rotationally connected in a rotary hole formed in the upper end of the mounting vertical plate (11), a spline rod (2) is arranged at the right end of the cutter handle (1), a cutter bar (3) is rotationally connected to the right end of the spline rod (2), a fixing frame (12) is arranged between the middle of the outer arc surface of the cutter bar (3) and the mounting base plate (10), a cutting cutter (4) is rotationally connected in a notch formed in the right end of the cutter bar (3) through a rotary shaft, and a long circular hole (5) is formed in the lower end of the cutting cutter (4);

circle cover (6) sliding connection is in the outside of spline rod (2), sliding connection has regulation seat (7) in the forked tail annular that circle cover (6) extrados right-hand member was seted up, the lower extreme of adjusting seat (7) rotates through the pivot and is connected with gangbar (8), the right-hand member of gangbar (8) through the pivot with slotted hole (5) rotate and connect.

2. The precision bearing inner ring outer ball groove machining device according to claim 1, characterized in that: the device also comprises a swing mechanism (9) arranged in the middle of the upper surface of the mounting substrate (10).

3. The precision bearing inner ring outer ball groove machining device according to claim 2, characterized in that: the swing mechanism (9) comprises a sliding block (93) and a crossed spiral groove (94), the crossed spiral groove (94) is arranged outside the round sleeve (6), and the sliding block (93) is connected to the inside of the crossed spiral groove (94) in a sliding mode.

4. The precision bearing inner ring outer ball groove machining device according to claim 3, characterized in that: swing mechanism (9) still include fixing base (91) and connecting rod (92), fixing base (91) set up in the upper surface middle part of mounting substrate (10), connecting rod (92) pass through bolt fixed connection in the top opening of fixing base (91), the upper end of connecting rod (92) through the pivot with slider (93) rotate and are connected.

5. The precision bearing inner ring outer ball groove machining device according to claim 4, characterized in that: and the four corners of the upper surface of the mounting substrate (10) are provided with mounting round holes.

6. The precision bearing inner ring outer ball groove machining device according to claim 1, characterized in that: still including being located lathe main shaft (13) of hilt (1) top, the right side end department of lathe main shaft (13) is equipped with three chucks of grabbing, the hydraulic oil inlet of three chucks is through the inside oil duct hole of lathe main shaft (13) and the hydraulic oil-out intercommunication of the inside hydraulic power part of lathe.

7. The precision bearing inner ring outer ball groove machining device according to claim 6, characterized in that: still include driving gear (14) and driven gear (15), driving gear (14) set up in the extrados left end of lathe main shaft (13), driven gear (15) set up in the extrados left end of hilt (1), driven gear (15) correspond with driving gear (14) position.