CN217045704U - Deep hole grinding drive plate for machining live center shell - Google Patents
Deep hole grinding drive plate for machining live center shell Download PDFInfo
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- CN217045704U CN217045704U CN202220729299.4U CN202220729299U CN217045704U CN 217045704 U CN217045704 U CN 217045704U CN 202220729299 U CN202220729299 U CN 202220729299U CN 217045704 U CN217045704 U CN 217045704U
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Abstract
The application relates to a machining of live center casing grinds driver plate with deep hole includes: the power disc, the transition dish, transition cover and connection pad, the power disc rear end is equipped with the boss, the power disc rear end is equipped with the screw thread post, transition dish rear end is equipped with the installation cover, the transition dish cover is established on two screw thread posts, be equipped with first fender ring relative transition dish cover on the screw thread post, it establishes the outside pressure spring at the screw thread post to be equipped with the cover between first fender ring and the transition dish, it is equipped with lock nut to lie in first fender ring rear end on the screw thread post, the transition cover sets up in the installation cover and is connected with the installation cover through the fastener, the connection pad front end is equipped with the reference column, the tip of reference column is equipped with the ball with the boss butt, the reference column passes through the fixed axle and is connected with the transition cover. This application simple structure, convenient operation has improved the work piece circularity, and then has improved the rotation accuracy of whole live center.
Description
Technical Field
The utility model relates to a top technical field, in particular to live center is deep hole mill driver plate for casing processing.
Background
At present, the precision requirement of the mechanical industry on a workpiece is higher and higher, particularly the requirement of the roller industry on the roundness of the roller is severer day by day, the movable center serving as a core tool for determining the roundness of the roller is required to improve the precision, the precision of each part of the movable center needs to be improved for improving the rotation precision of the movable center, when a movable center shell is machined, the movable center shell is directly clamped by a chuck for direct grinding machining, and the hard connection method causes the vibration of a transmission part of a head of a grinding machine and the rotation error of a spindle of a head of a bed to be transmitted to the workpiece, so that the self roundness error of the movable center shell is greatly influenced.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a live center is deep hole mill driver plate for casing processing, simple structure, convenient operation reduces axial float and radial runout to the influence of processing, has improved the work piece circularity, and then has improved whole live center's rotation precision.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a deep hole grinding drive plate for machining a live center shell comprises:
the rear end of the power disc is provided with a boss, and threaded columns are horizontally arranged at the rear end of the power disc and are positioned on the upper side and the lower side of the boss relatively;
the rear end of the transition disc is provided with an installation sleeve, the transition disc is sleeved on the two threaded columns, the transition disc can move left and right on the threaded columns along the axial direction, the threaded columns are provided with first baffle rings relative to the transition disc sleeve, a pressure spring sleeved outside the threaded columns is arranged between the first baffle rings and the transition disc, and the threaded columns are provided with locking nuts positioned at the rear ends of the first baffle rings;
the transition sleeve is arranged in the mounting sleeve and is connected with the mounting sleeve through a fastener;
the connection pad, its front end is equipped with the reference column, the reference column passes transition cover and transition dish towards transition dish and tip in proper order, and the tip of reference column is equipped with the ball with the boss butt, and the reference column passes through the fixed axle and is connected with the transition cover.
Furthermore, a concave fixed disc is arranged at the rear end of the connecting disc, and the concave surface of the fixed disc deviates from the connecting disc.
Furthermore, a second retaining ring is sleeved at the rear end of the transition disc on the threaded column, and the pressure spring is positioned between the first retaining ring and the second retaining ring.
Further, the screw thread post is including linkage segment, changeover portion and the screw thread section that connects gradually, linkage segment, changeover portion and screw thread section radius reduce in proper order, and the linkage segment sets up on the power disc, and the changeover portion can be followed the axial and removed on the changeover portion, the internal diameter that the second kept off the ring is greater than the diameter of changeover portion, lock nut establishes on the screw thread section.
Furthermore, be equipped with the first through-hole that is used for the changeover portion to pass through on the transition dish, first through-hole and changeover portion are clearance fit, and the transition dish is integrative to be made with the installation cover.
Further, the fastener is a fixing pin or a bolt.
Further, the connection pad front end is equipped with the fixed column, and the reference column setting is at the fixed column front end, and the tip of reference column orientation transition dish is the toper.
Further, be equipped with the second through-hole that is used for the reference column to pass through on the transition dish, the boss includes first step and the second step that the diameter reduces in proper order, and the diameter of second step is less than the diameter of second through-hole.
Furthermore, be equipped with two L shape relatively on the transition cover outer wall and lead to the groove, L shape leads to the groove and includes horizontal groove and vertical groove, and the fixed axle is along the reference column radial along running through the reference column, and the fixed axle is gone into vertical groove through the horizontal groove card along transition cover axial.
Furthermore, a connecting column is arranged at the front end of the power disc.
The beneficial effect of this application does: through the fixed power dish of three-jaw chuck, drive scale dish and installation cover through two screw thread posts on the power dish and rotate, move about for clearance fit and transition dish can follow the axial with the changeover portion on the transition dish, make transition dish axial direction and radial direction be in free state, the radial runout of transition dish is transmitted from the power end that has significantly reduced for the work piece circularity after the grinding improves greatly, thereby improves whole live center's rotation accuracy.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural view of a threaded post;
FIG. 3 is a schematic structural view of a transition sleeve;
fig. 4 is a structural schematic diagram of a boss.
The mark in the figure is: 1. the connecting device comprises a transition disc, 2, a connecting column, 3, a power disc, 4, a threaded column, 401, a connecting section, 402, a transition section, 403, a threaded section, 5, a second retaining ring, 6, a pressure spring, 7, a first retaining ring, 8, a locking nut, 9, a fixed disc, 10, a connecting disc, 11, a fixed column, 12, a positioning column, 13, a fixed shaft, 14, a transition sleeve, 1401 and an L-shaped through groove, 15, an installation sleeve, 16, a fastening piece, 17, a ball, 18, a boss, 1801, a first step, 1802, a second step, 19, a three-jaw chuck, 20 and a top movable shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-4, the present invention provides a deep hole grinding drive plate for machining live center housing, comprising: the power disc 3, the transition disc 1, the transition sleeve 14 and the connecting disc 10, wherein a boss 18 is arranged at the rear end of the power disc 3, the threaded columns 4 are horizontally arranged at the upper side and the lower side of the boss 18 at the rear end of the power disc 3, the mounting sleeve 15 is arranged at the rear end of the transition disc 1, the transition disc 1 and the mounting sleeve 15 are integrally manufactured, the transition disc 1 is sleeved on the two threaded columns 4, the transition disc 1 can move left and right on the threaded columns 4 along the axial direction, a first retaining ring 7 is sleeved on the threaded columns 4 relative to the transition disc 1, a pressure spring 6 sleeved outside the threaded columns 4 is arranged between the first retaining ring 7 and the transition disc 1, locking nuts 8 are arranged at the rear ends of the first retaining ring 7 on the threaded columns 4, the two locking nuts 8 are arranged, the transition sleeve 14 is arranged in the mounting sleeve 15 and connected with the mounting sleeve 15 through a fastener 16, the front end of the connecting disc 10 is provided with a positioning column 12, the positioning column 12 sequentially penetrates through the transition sleeve 14 and the transition disc 1 towards the end of the transition disc 1, the end of the positioning column 12 is provided with a ball 17 abutting against a boss 18, and the positioning column 12 is connected with the transition sleeve 14 through the fixed shaft 13.
As shown in fig. 1, a concave fixing disc 9 is arranged at the rear end of the connecting disc 10, the connecting disc 10 is connected with the fixing disc 9 through screws, the concave surface of the fixing disc 9 deviates from the setting of the connecting disc 10, a connecting column 2 is arranged at the front end of the power disc 3, the concave fixing disc 9 is arranged, the end part of the live center shell 20 can be installed in the concave surface, the fixing disc 9 and the live center shell 20 are connected through screws, the connection stability is guaranteed, the processing accuracy is guaranteed, and the processing precision is improved.
Specifically, as shown in fig. 1 and 2, the threaded column 4 includes linkage segment 401, changeover portion 402 and the screw thread section 403 that connect gradually, the radius of linkage segment 401, changeover portion 402 and screw thread section 403 reduces in proper order, and linkage segment 401 sets up on power disc 3, and the changeover portion 1 can be controlled about on the changeover portion 402 along the axial, the internal diameter that the second keeps off ring 5 is greater than the diameter of changeover portion 402, lock nut 8 establishes on screw thread section 403, be equipped with the first through-hole that is used for changeover portion 402 to pass through on the changeover portion 1, first through-hole and changeover portion 402 are clearance fit, through the length of adjusting lock nut 8 screw in screw thread section 403, can adjust the flexible distance of pressure spring 6.
Further, as shown in fig. 1, the fastening piece 16 is a fixing pin or a bolt, when the fastening piece is a fixing pin, the mounting sleeve 15 and the fixing pin are in interference fit, the transition sleeve 14 and the fixing pin are in clearance fit, when the fastening piece is a bolt, the bolt is in threaded connection with the mounting sleeve 15 and the transition sleeve 14 respectively, and the transition sleeve 14 can swing around the fastening piece 16, so that the transition sleeve 14 also has a relative degree of freedom, and therefore, the secondary jump-down effect is achieved, and the roundness after grinding is greatly improved through two-stage jump-down, and the rotation precision of the whole live center is improved.
In addition, as shown in fig. 1, a fixing column 11 is arranged at the front end of the connecting disc 10, a positioning column 12 is arranged at the front end of the fixing column 11, the end part of the positioning column 12 facing the transition disc 1 is conical, and the ball 17 is arranged at the front end of the conical.
More specifically, as shown in fig. 1 and fig. 4, a second through hole for passing the positioning column 12 is provided on the transition disc 1, the boss 18 includes a first step 1801 and a second step 1802 with sequentially decreasing diameters, and the diameter of the second step 1802 is smaller than that of the second through hole.
In addition, as shown in fig. 1 and fig. 3, two L-shaped through grooves 1401 are oppositely arranged on the outer wall of the transition sleeve 14, each L-shaped through groove 1401 comprises a horizontal groove and a vertical groove which are communicated with each other, the fixing shaft 13 radially penetrates through the positioning column 12 along the positioning column 12, the fixing shaft 13 is axially clamped into the vertical groove through the horizontal groove along the transition sleeve 14, the L-shaped through groove 1401 is arranged, so that the installation and the disassembly are convenient, the machining efficiency is improved, the axis of the fixing shaft 13 is perpendicular to the axis of the transition sleeve 14, and it should be noted that the parts which are not described in detail in this application are all in the prior art.
The working principle of the application is as follows: press from both sides tight fixed connection post 2 through the three-jaw chuck, the three-jaw chuck rotates, then, drive spliced pole 2 and power dish 3 and rotate, drive transition dish 1 and installation cover 15 through two screw post 4 on the power dish 3 and rotate, first through-hole on the transition dish 1 is clearance fit and transition dish 1 can be followed the axial and removed the removal, make 1 axial direction of transition dish and radial direction be in free state, the radial runout of transferring to transition dish 1 from the power end that has significantly reduced, make the work piece circularity after the grinding improve greatly, thereby improve whole live center's rotation accuracy.
Of course, the present invention is not limited to the above-described embodiments, and several other embodiments based on the design concept of the present invention are provided below.
For example, in other embodiments, different from the above-described embodiments, as shown in fig. 1, a second retaining ring 5 is sleeved on the threaded post 4 at the rear end of the transition disc 1, the compression spring 6 is located between a first retaining ring 7 and the second retaining ring 5, and the diameter of the first through hole is the same as that of the second retaining ring 5.
For example, in other embodiments, unlike the embodiments described above, the projections 18 are made of cemented carbide, as shown in fig. 1 and 4.
For example, in other embodiments, different from the above-described embodiments, as shown in fig. 1, the threaded column 4 is provided with a threaded rod at one end facing the power disc 3, the threaded rod is in threaded connection with the power disc 3, and the power disc 3 is provided with a threaded hole matched with the threaded rod.
For example, in other embodiments, unlike the above-described embodiments, the threaded post 4 is welded to the power disc 3.
It should be noted that the above embodiments are only used for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention all fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides a live center is deep hole grinding driver plate for casing processing which characterized in that includes:
the rear end of the power disc (3) is provided with a boss (18), and the rear end of the power disc (3) and the upper and lower sides of the boss (18) are relatively and horizontally provided with threaded columns (4);
the rear end of the transition disc (1) is provided with an installation sleeve (15), the transition disc (1) is sleeved on the two threaded columns (4), the transition disc (1) can move left and right on the threaded columns (4) along the axial direction, a first retaining ring (7) is sleeved on each threaded column (4) relative to the transition disc (1), a pressure spring (6) sleeved outside each threaded column (4) is arranged between each first retaining ring (7) and the transition disc (1), and a locking nut (8) is arranged on each threaded column (4) and positioned at the rear end of each first retaining ring (7);
the transition sleeve (14) is arranged in the mounting sleeve (15) and is connected with the mounting sleeve (15) through a fastener (16);
connection pad (10), its front end is equipped with reference column (12), transition cover (14) and transition dish (1) are passed in proper order towards transition dish (1) and tip in reference column (12), and the tip of reference column (12) is equipped with ball (17) with boss (18) butt, and reference column (12) are connected with transition cover (14) through fixed axle (13).
2. The deep hole grinding drive plate for machining the live center shell according to claim 1, wherein: the rear end of the connecting disc (10) is provided with a concave fixed disc (9), and the concave surface of the fixed disc (9) deviates from the connecting disc (10).
3. The drive plate for deep hole grinding in machining of a live center shell according to claim 1, wherein: the threaded column (4) is sleeved with a second retaining ring (5) at the rear end of the transition disc (1), and the pressure spring (6) is located between the first retaining ring (7) and the second retaining ring (5).
4. The deep hole grinding drive plate for machining the live center shell according to claim 3, wherein: threaded column (4) are including linkage segment (401), changeover portion (402) and the screw thread section (403) that connect gradually, linkage segment (401), changeover portion (402) and screw thread section (403) radius reduce in proper order, and linkage segment (401) set up on power dish (3), and transition dish (1) can be followed the axial and removed on changeover portion (402), the internal diameter that second kept off ring (5) is greater than the diameter of changeover portion (402), lock nut (8) are established on screw thread section (403).
5. The deep hole grinding drive plate for machining the live center shell according to claim 4, wherein: be equipped with the first through-hole that is used for changeover portion (402) to pass through on transition dish (1), first through-hole and changeover portion (402) are clearance fit, and transition dish (1) and installation cover (15) are integrative to be made.
6. The deep hole grinding drive plate for machining the live center shell according to claim 1, wherein: the fastening piece (16) is a fixing pin or a bolt.
7. The drive plate for deep hole grinding in machining of a live center shell according to claim 1, wherein: the front end of the connecting disc (10) is provided with a fixing column (11), the positioning column (12) is arranged at the front end of the fixing column (11), and the end part of the positioning column (12) facing the transition disc (1) is conical.
8. The drive plate for deep hole grinding in machining of a live center shell according to claim 7, wherein: the transition disc (1) is provided with a second through hole for the positioning column (12) to pass through, the boss (18) comprises a first step (1801) and a second step (1802) with diameters sequentially reduced, and the diameter of the second step (1802) is smaller than that of the second through hole.
9. The deep hole grinding drive plate for machining the live center shell according to claim 7, wherein: two L-shaped through grooves (1401) are oppositely arranged on the outer wall of the transition sleeve (14), each L-shaped through groove (1401) comprises a horizontal groove and a vertical groove, the fixing shaft (13) penetrates through the positioning column (12) along the radial direction of the positioning column (12), and the fixing shaft (13) is axially clamped into the vertical grooves through the horizontal grooves along the transition sleeve (14).
10. The deep hole grinding drive plate for machining the live center shell according to claim 1, wherein: the front end of the power disc (3) is provided with a connecting column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220729299.4U CN217045704U (en) | 2022-03-31 | 2022-03-31 | Deep hole grinding drive plate for machining live center shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220729299.4U CN217045704U (en) | 2022-03-31 | 2022-03-31 | Deep hole grinding drive plate for machining live center shell |
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| Publication Number | Publication Date |
|---|---|
| CN217045704U true CN217045704U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220729299.4U Active CN217045704U (en) | 2022-03-31 | 2022-03-31 | Deep hole grinding drive plate for machining live center shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117207067A (en) * | 2023-11-07 | 2023-12-12 | 湖南中大创远数控装备有限公司 | Transition disc and grinding wheel mounting assembly, mounting method and machine tool |
-
2022
- 2022-03-31 CN CN202220729299.4U patent/CN217045704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117207067A (en) * | 2023-11-07 | 2023-12-12 | 湖南中大创远数控装备有限公司 | Transition disc and grinding wheel mounting assembly, mounting method and machine tool |
| CN117207067B (en) * | 2023-11-07 | 2024-01-30 | 湖南中大创远数控装备有限公司 | Transition disc and grinding wheel mounting assembly, mounting method and machine tool |
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