CN214922585U - Clamping device for machining double channels of bearing ring by single lathe - Google Patents
Clamping device for machining double channels of bearing ring by single lathe Download PDFInfo
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- CN214922585U CN214922585U CN202121013328.9U CN202121013328U CN214922585U CN 214922585 U CN214922585 U CN 214922585U CN 202121013328 U CN202121013328 U CN 202121013328U CN 214922585 U CN214922585 U CN 214922585U
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Abstract
A clamping device for processing double channels of a bearing ring by a single lathe comprises a lathe head of the lathe, wherein a hydraulic chuck is fixedly connected to a rotating main shaft of the lathe head, a conical chuck is arranged on the hydraulic chuck, a plurality of cutting grooves are formed in the chuck, and the front part of each cutting groove dividing chuck is provided with a plurality of arc-shaped fixed clamping blocks; the front end face of a fixed clamping block of the hydraulic chuck is fixedly provided with a plurality of longitudinal positioning columns in an inserted manner, the front ends of the positioning columns are inserted and sleeved with a plurality of movable clamping blocks which are opposite to the fixed clamping block and are in the shape of a circular arc, the outer wall of each movable clamping block is formed with a fan-shaped limiting block, a plurality of balls are embedded in the limiting block, and the front ends of the balls are respectively exposed out of the front end face and the rear end face of the limiting block. The auxiliary turning device can assist the same lathe to complete the processing of two inner grooves in the bearing outer ring by twice turning, thereby effectively ensuring the concentricity of the two inner grooves.
Description
The technical field is as follows:
the utility model relates to a technical field of bearing processing equipment, more specifically say and relate to a clamping device of bicycle processing bearing ring double channel.
Background art:
the conventional double-row ball bearing comprises an outer ring, an inner ring, balls and a retainer, wherein two groups of balls distributed annularly are arranged on the double-row ball bearing, two inner channels provided with the balls are arranged on the inner wall of the outer ring of the double-row ball bearing, and the two inner channels are respectively machined by two lathes in a traditional machining mode of the double-channel inner channels, namely, after the outer ring of the bearing is clamped on one lathe, an inner groove close to one side is machined by a lathe tool, and after one inner groove is machined, the outer ring of the bearing is conveyed to the other lathe by a wire connecting device, wherein the wire connecting device is provided with a reversing mechanism, so that the front end and the rear end of the outer ring of the bearing can be transposed, and the machining of an upper inner groove and a lower inner groove of the outer ring of the bearing is facilitated; however, in the processing mode, clamping needs to be carried out twice, and clamping errors are more or less caused, so that concentricity errors exist in two inner channels, and bearing precision is influenced.
The utility model has the following contents:
the utility model aims at being not enough to prior art, and provide a clamping device of bicycle processing bearing ring double channel, it can assist and divide twice turning with a lathe and accomplish the processing of slot in the bearing inner race twice to effectively guarantee the concentricity of slot in the twice.
A clamping device for processing double channels of a bearing ring by a single lathe comprises a lathe head of the lathe, wherein a hydraulic chuck is fixedly connected to a rotating main shaft of the lathe head, a conical chuck is arranged on the hydraulic chuck, a plurality of cutting grooves are formed in the chuck, and the front part of each cutting groove dividing chuck is provided with a plurality of arc-shaped fixed clamping blocks; the front end face of a fixed clamping block of the hydraulic chuck is fixedly inserted with a plurality of positioning columns, the front ends of the positioning columns are inserted with a plurality of movable clamping blocks which are opposite to the fixed clamping block and are in an arc shape, the outer wall of each movable clamping block is formed with a fan-shaped limiting block, a plurality of balls are embedded in the limiting blocks, and the front ends of the balls are respectively exposed out of the front end face and the rear end face of the limiting block;
the movable clamping blocks at the front side and the rear side of the limiting block are respectively inserted and sleeved with a front driving disc and a rear driving disc which are annular, a front support plate and a rear support plate are respectively formed at two sides of the front driving disc and the rear driving disc, a sliding shaft sleeve is fixedly inserted and connected onto the front support plate at one side of the front driving disc and the rear support plate at one side of the rear driving disc, a longitudinal optical axis is inserted and connected into the sliding shaft sleeve, a threaded sleeve is fixedly inserted and connected onto the front support plate at the other side of the front driving disc and the rear support plate at the other side of the rear driving disc, and a longitudinal lead screw is screwed into the threaded sleeve;
the hydraulic chuck is characterized in that a circular arc-shaped rear support frame is fixed on the headstock on the lower side of the hydraulic chuck, a circular arc-shaped front support frame is arranged on the front side of the rear support frame, the front end and the rear end of an optical axis are respectively fixed on the front support frame and the rear support frame in an inserting mode, the front end of a lead screw is hinged to the front support frame through a bearing, the rear end of the lead screw is hinged to the rear support frame through a bearing, a coupler is fixed on an inserting sleeve of the rear support frame and fixed on the coupler, a rotating shaft of a servo motor is fixed on the coupler in an inserting mode, the servo motor is fixed on a motor support, and the motor support is fixed on the side wall of the headstock.
Preferably, three cutting grooves are formed in the chuck, the cutting grooves are uniformly distributed in an annular shape around the central axis of the chuck, the number of the fixed clamping blocks is equal to that of the movable clamping blocks, and at least two positioning columns are inserted into each movable clamping block.
Preferably, a circular convex ring is formed on the positioning column, and the front end face and the end face of the convex ring are respectively abutted against the movable clamping block and the clamping head.
Preferably, the central axis of the rear drive disk, the central axis of the front drive disk and the central axis of the hydraulic chuck coincide.
Preferably, the distance between the front driving disc and the rear driving disc is equal to the diameter of the balls, the threaded sleeve or the sliding shaft sleeve is fixed to the front support plate and the rear support plate in a manner that two ends of the threaded sleeve or the sliding shaft sleeve respectively penetrate through the front support plate and the rear support plate to be fixed with limiting sleeves, and elastic washers are respectively inserted into the threaded sleeve or the sliding shaft sleeve between the limiting sleeves and the front support plate or the rear support plate.
Preferably, the circular arc centers of the rear support frame and the front support frame are positioned on the central axis of the hydraulic chuck, the lower part of the front support frame is fixed with a longitudinal support column, and the rear end of the support column penetrates through the rear support frame to be fixedly inserted on the vehicle head
Preferably, the diameter of the inner wall of each front driving disk or each rear driving disk is larger than that of the outer wall of each movable clamping block.
The beneficial effects of the utility model reside in that:
the auxiliary turning device can assist the same lathe to complete the processing of two inner grooves in the bearing outer ring by twice turning, thereby effectively ensuring the concentricity of the two inner grooves and improving the processing precision of the bearing.
Description of the drawings:
fig. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic side view of the present invention;
fig. 4 is a schematic structural view of the present invention from above.
In the figure: 1. a headstock; 2. a hydraulic chuck; 21. a chuck; 211. grooving; 3. a positioning column; 31. a convex ring; 4. a movable clamping block; 41. a limiting block; 42. a limit stop block; 5. a ball bearing; 6. a front drive disk; 61. a front support plate; 7. a rear drive disk; 71. a rear support plate; 8. a threaded sleeve; 9. a sliding shaft sleeve; 10. a limiting sleeve; 11. a screw rod; 12. an optical axis; 13. a rear support frame; 14. a front support frame; 15. a support pillar; 16. a servo motor; 17. a motor bracket; 18. a coupling is provided.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 to 4, the clamping device for processing the bearing ring double-channel by the single lathe comprises a lathe head 1 of the lathe, wherein a hydraulic chuck 2 is fixedly connected to a rotating main shaft of the lathe head 1, a conical chuck 21 is arranged on the hydraulic chuck 2, a plurality of cutting grooves 211 are formed in the chuck 21, and the front part of the chuck 21 divided by the cutting grooves 211 is provided with a plurality of arc-shaped fixed clamping blocks; a plurality of positioning columns 3 are fixedly inserted on the front end faces of fixed clamping blocks of the hydraulic chuck 2, a plurality of movable clamping blocks 4 which are opposite to the fixed clamping blocks and are in an arc shape are inserted at the front ends of the positioning columns 3, a fan-shaped limiting block 41 is formed on the outer wall of each movable clamping block 4, a plurality of rolling balls 5 are embedded on each limiting block 41, and the front ends of the rolling balls 5 are respectively exposed out of the front end face and the rear end face of each limiting block 41;
the movable clamping blocks 4 at the front side and the rear side of the limiting block 41 are respectively inserted and sleeved with a front driving disk 6 and a rear driving disk 7 which are circular in shape, a front supporting plate 61 and a rear supporting plate 71 are respectively formed at two sides of the front driving disk 6 and the rear driving disk 7, a sliding shaft sleeve 9 is fixedly inserted and connected onto the front supporting plate 61 at one side of the front driving disk 6 and the rear supporting plate 71 at one side of the rear driving disk 7, a longitudinal optical axis 12 is inserted and connected into the sliding shaft sleeve 9, a threaded sleeve 8 is fixedly inserted and connected onto the front supporting plate 61 at the other side of the front driving disk 6 and the rear supporting plate 71 at the other side of the rear driving disk 7, and a longitudinal lead screw 11 is screwed into the threaded sleeve 8;
an arc-shaped rear support frame 13 is fixed on the headstock 1 on the lower side of the hydraulic chuck 2, an arc-shaped front support frame 14 is arranged on the front side of the rear support frame 13, the front end and the rear end of the optical axis 12 are respectively fixed on the front support frame 14 and the rear support frame 13 in an inserting mode, the front end of the lead screw 11 is hinged to the front support frame 14 through a bearing, the rear end of the lead screw is hinged to the rear support frame 13 through a bearing, a coupler 18 is fixed on the rear support frame 13 in an inserting mode and extends out of an inserting sleeve of the rear support frame 13, a rotating shaft of a servo motor 16 is fixed on the coupler 18 in an inserting mode, the servo motor 16 is fixed on a motor support 17, and the motor support 17 is fixed on the side wall of the headstock 1.
Preferably, three cutting grooves 211 are formed in the chuck 21, the cutting grooves 211 are uniformly distributed in an annular shape around the central axis of the chuck 21, the number of the fixed clamping blocks is equal to that of the movable clamping blocks 4, and at least two positioning columns 3 are inserted into each movable clamping block 4.
Preferably, an annular convex ring 31 is formed on the positioning column 3, and the front end face and the end face of the convex ring 31 respectively abut against the movable clamping block 4 and the clamping head 21.
Preferably, the central axis of the rear drive disk 7, the central axis of the front drive disk 6 and the central axis of the hydraulic chuck 2 coincide.
Preferably, the distance between the front driving disk 6 and the rear driving disk 7 is equal to the diameter of the balls 5, the threaded sleeve 8 or the sliding shaft sleeve 9 is fixed between the front supporting plate 61 and the rear supporting plate 71 in a manner that two ends of the threaded sleeve 8 or the sliding shaft sleeve 9 respectively penetrate through the front supporting plate 61 and the rear supporting plate 71 to be fixed with the limiting sleeve 10, and the threaded sleeve 8 or the sliding shaft sleeve 9 between the limiting sleeve 10 and the front supporting plate 61 or the rear supporting plate 71 is sleeved with the elastic washer.
Preferably, the circle centers of the arcs of the rear support frame 13 and the front support frame 14 are located on the central axis of the hydraulic chuck 2, the lower part of the front support frame 14 is fixed with a longitudinal support column 15, and the rear end of the support column 15 penetrates through the rear support frame 13 to be fixedly inserted into the headstock 1
Preferably, the diameter of the inner wall of the front driving disk 6 or the rear driving disk 7 is larger than that of the outer wall of the movable clamping block 4.
Preferably, a limit stop 42 is formed on the inner wall of the movable clamping block 4.
The working principle is as follows: the utility model discloses a clamping device of bearing ring double channel of single lathe processing, its clamping device is mainly used for turning bearing inner race twice the inner channel of bearing outer lane with the same lathe, it does not need to press from both sides dress twice, does not have the error between the both sides dress, so can guarantee the concentricity of the inner channel of twice;
the specific structure is as shown in fig. 1, the bearing outer ring is inserted between the movable clamping blocks 4, the hydraulic chuck 2 is started, the chuck 21 on the hydraulic chuck 2 drives the movable clamping blocks 4 to draw in and clamp the outer wall of the fixed bearing outer ring, after the chuck 21 clamps the bearing outer ring, the positioning columns 3 are longitudinally parallel to the optical axis 12, and the limiting blocks 41 on the chuck 21 are perpendicular to the optical axis 12; then the tool rest is fed, the turning tool enters the position close to the inner side of the bearing outer ring, then the tool feeding is carried out, an inner groove close to one side of the front end of the bearing outer ring is firstly processed, after the processing, the turning tool does not exit the outer side of the bearing outer ring and moves to the initial position of the tool feeding, the servo motor 16 is started, the servo motor 16 drives the front driving disk 6 and the rear driving disk 7 to move forwards by utilizing the transmission of the lead screw 11, the front driving disk 6 and the rear driving disk 7 can drive the chuck 21 to move forwards, the bearing outer ring is further driven to move outside the turning tool, the position of the inner groove at the rear end of the bearing outer ring is moved to the tool bit part of the turning tool, and the turning tool carries out the tool feeding again, so that the processing of the next inner groove can be realized; so that the clamping of the two parts is not needed,
meanwhile, by adopting the clamping device, the headstock can be far away from the hydraulic chuck 2, the problem of cutter collision can be avoided, and chip removal after turning is facilitated.
The examples are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.
Claims (7)
1. A clamping device for processing double channels of a bearing ring by a single lathe comprises a lathe head (1) of the lathe, wherein a hydraulic chuck (2) is fixedly connected to a rotating main shaft of the lathe head (1), a conical chuck (21) is arranged on the hydraulic chuck (2), a plurality of cutting grooves (211) are formed in the chuck (21), and the front part of the chuck (21) divided by the cutting grooves (211) is provided with a plurality of circular arc-shaped fixed clamping blocks; the method is characterized in that: a plurality of positioning columns (3) are fixedly inserted on the front end face of a fixed clamping block of a hydraulic chuck (2), a plurality of movable clamping blocks (4) which are opposite to the fixed clamping block and are in an arc shape are inserted at the front ends of the positioning columns (3), a fan-shaped limiting block (41) is formed on the outer wall of each movable clamping block (4), a plurality of rolling balls (5) are embedded on each limiting block (41), and the front ends of the rolling balls (5) are respectively exposed out of the front end face and the rear end face of each limiting block (41);
the front and rear movable clamping blocks (4) on the front and rear sides of the limiting block (41) are respectively inserted with a front driving disc (6) and a rear driving disc (7) which are circular in shape, the two sides of the front driving disc (6) and the rear driving disc (7) are respectively formed with a front support plate (61) and a rear support plate (71), the front support plate (61) on one side of the front driving disc (6) and the rear support plate (71) on one side of the rear driving disc (7) are respectively inserted and fixed with a sliding shaft sleeve (9), a longitudinal optical axis (12) is inserted and connected in the sliding shaft sleeve (9), the front support plate (61) on the other side of the front driving disc (6) and the rear support plate (71) on the other side of the rear driving disc (7) are inserted and fixed with a threaded sleeve (8), and a longitudinal screw rod (11) is threaded in the threaded sleeve (8);
a circular arc-shaped rear support frame (13) is fixed on a headstock (1) on the lower side of the hydraulic chuck (2), a circular arc-shaped front support frame (14) is arranged on the front side of the rear support frame (13), the front end and the rear end of an optical shaft (12) are respectively fixed on the front support frame (14) and the rear support frame (13) in an inserting mode, the front end of a lead screw (11) is hinged to the front support frame (14) through a bearing, the rear end of the lead screw is hinged to the rear support frame (13) through a bearing, a coupler (18) is fixed on the rear support frame (13) in an inserting mode and extends out of an inserting sleeve of the rear support frame (13), a rotating shaft of a servo motor (16) is fixed on the coupler (18) in an inserting mode, the servo motor (16) is fixed on a motor support (17), and the motor support (17) is fixed on the side wall of the headstock (1).
2. The clamping device for machining the double channels of the bearing ring by the single lathe according to claim 1, wherein the clamping device comprises: three cutting grooves (211) are formed in the chuck (21), the cutting grooves (211) are uniformly distributed in an annular mode around the central axis of the chuck (21), the number of the fixed clamping blocks is equal to that of the movable clamping blocks (4), and at least two positioning columns (3) are inserted into each movable clamping block (4).
3. The clamping device for machining the double channels of the bearing ring by the single lathe according to claim 2, wherein the clamping device comprises: an annular convex ring (31) is formed on the positioning column (3), and the front end face and the rear end face of the convex ring (31) are respectively abutted against the movable clamping block (4) and the clamping head (21).
4. The clamping device for machining the double channels of the bearing ring by the single lathe according to claim 1, wherein the clamping device comprises: the central axis of the rear driving disk (7), the central axis of the front driving disk (6) and the central axis of the hydraulic chuck (2) are coincident.
5. The clamping device for machining the double channels of the bearing ring by the single lathe according to claim 1, wherein the clamping device comprises: the distance between the front driving disc (6) and the rear driving disc (7) is equal to the diameter of the balls (5), the fixing mode between the screw sleeve (8) or the sliding shaft sleeve (9) and the front supporting plate (61) and the rear supporting plate (71) is that two ends of the screw sleeve (8) or the sliding shaft sleeve (9) respectively penetrate through the front supporting plate (61) and the rear supporting plate (71) to form inserting sleeves and are fixed with limiting sleeves (10), and elastic gaskets are respectively inserted and sleeved on the screw sleeve (8) or the sliding shaft sleeve (9) between the limiting sleeves (10) and the front supporting plate (61) or the rear supporting plate (71).
6. The clamping device for machining the double channels of the bearing ring by the single lathe according to claim 1, wherein the clamping device comprises: the arc circle centers of the rear support frame (13) and the front support frame (14) are positioned on the central axis of the hydraulic chuck (2), the lower part of the front support frame (14) is fixed with a longitudinal support column (15), and the rear end of the support column (15) penetrates through the rear support frame (13) to be fixed on the headstock (1) in an inserting mode.
7. The clamping device for machining the double channels of the bearing ring by the single lathe according to claim 1, wherein the clamping device comprises: the diameters of the inner walls of the front driving disk (6) or the rear driving disk (7) are larger than the diameters of the outer walls of the movable clamping blocks (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013328.9U CN214922585U (en) | 2021-05-13 | 2021-05-13 | Clamping device for machining double channels of bearing ring by single lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013328.9U CN214922585U (en) | 2021-05-13 | 2021-05-13 | Clamping device for machining double channels of bearing ring by single lathe |
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| Publication Number | Publication Date |
|---|---|
| CN214922585U true CN214922585U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121013328.9U Active CN214922585U (en) | 2021-05-13 | 2021-05-13 | Clamping device for machining double channels of bearing ring by single lathe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117066599A (en) * | 2023-10-16 | 2023-11-17 | 常州迈腾工具有限公司 | Finish machining tool assembly for outer ring channel of deep groove ball bearing |
-
2021
- 2021-05-13 CN CN202121013328.9U patent/CN214922585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117066599A (en) * | 2023-10-16 | 2023-11-17 | 常州迈腾工具有限公司 | Finish machining tool assembly for outer ring channel of deep groove ball bearing |
| CN117066599B (en) * | 2023-10-16 | 2023-12-19 | 常州迈腾工具有限公司 | Finish machining tool assembly for outer ring channel of deep groove ball bearing |
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