CN114102432A - Stable clamping mechanism for preventing cylinder suspension free end from jumping - Google Patents
Stable clamping mechanism for preventing cylinder suspension free end from jumping Download PDFInfo
- Publication number
- CN114102432A CN114102432A CN202111537375.8A CN202111537375A CN114102432A CN 114102432 A CN114102432 A CN 114102432A CN 202111537375 A CN202111537375 A CN 202111537375A CN 114102432 A CN114102432 A CN 114102432A
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- Prior art keywords
- frame
- abutting
- free end
- jumping
- adjusting screw
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- 230000009191 jumping Effects 0.000 title claims abstract description 14
- 239000000725 suspension Substances 0.000 title claims abstract description 12
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000007667 floating Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention relates to the technical field of grinding machines, in particular to a stable clamping mechanism for preventing a suspended free end of a cylinder from jumping, which comprises a control frame and a specification adjusting mechanism, wherein the control frame comprises a supporting frame and a pressing frame, the supporting frame is provided with a first arc-shaped groove, the pressing frame is provided with a second arc-shaped groove, the fixed end of the pressing frame is hinged with the supporting frame, and the movable end of the pressing frame is detachably fixed with the supporting frame, so that the first arc-shaped groove and the second arc-shaped groove can jointly enclose an openable clamping hole; the specification adjusting mechanism comprises a plurality of groups of abutting assemblies distributed circumferentially around the clamping hole, each group of abutting assemblies comprises an abutting rod and an adjusting screw rod, the abutting rods slidably penetrate through the control frame and penetrate into the clamping hole along the radial direction, the adjusting screw rods are rotatably installed on the control frame, and the adjusting screw rods are in threaded fit with the abutting rods. When the inner hole of a large cylindrical workpiece needs to be ground, the suspension free end of the workpiece can be inserted into the clamping hole to position the rotation center of the workpiece, so that the phenomenon that the workpiece jumps greatly in the rotation process due to the fact that the workpiece is large is avoided, and the grinding stability can be well improved.
Description
Technical Field
The invention relates to the technical field of grinding machines, in particular to a stable clamping mechanism for preventing a cylinder suspension free end from jumping.
Background
With continuous innovation of technology, the machining precision of products in the field of machining is also continuously improved, in the existing grinding process, an external grinding or centerless grinding is adopted for external grinding of cylindrical workpieces, and for cylindrical through hole parts with high coaxial precision requirements, an internal grinding is usually adopted for grinding inner holes to obtain high-precision sizes and smoothness.
When the internal grinding machine grinds the inner hole, the internal grinding wheel is used for processing a workpiece clamped on the rotating main shaft of the machine tool head frame, the workpiece can be corrected before processing, and the workpiece is clamped by a clamping jaw on the rotating main shaft of the grinding machine or other fastening modes. However, for the inner hole of the large workpiece such as a main shaft sleeve, a shaft core and the like of the grinding cylinder, one end of the workpiece is clamped and fixed by the main shaft and is driven to rotate, and because the outer diameter of the workpiece is large and the length of the workpiece is long, the suspension end of the workpiece far away from the clamping end is easy to jump, the stability is poor, and the grinding quality is affected.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a stable clamping mechanism for preventing the floating free end of a column from jumping.
In order to achieve the purpose, the invention provides the following technical scheme:
the control frame comprises a support frame and a pressing frame, the support frame is provided with a first arc-shaped groove, the pressing frame is provided with a second arc-shaped groove, the fixed end of the pressing frame is hinged with the support frame, and the movable end of the pressing frame is detachably fixed with the support frame, so that the first arc-shaped groove and the second arc-shaped groove can jointly enclose an openable clamping hole; the specification adjusting mechanism comprises a plurality of groups of abutting assemblies distributed circumferentially around the clamping hole, each group of abutting assemblies comprises an abutting rod and an adjusting screw rod, the abutting rods slidably penetrate through the control frame and penetrate into the clamping hole along the radial direction, the adjusting screw rods are rotatably arranged on the control frame and are in threaded fit with the abutting rods, and the inner ends of the abutting rods in the clamping hole are planes.
It is further preferred that adjusting screw and support the pole coaxial arrangement specifically, adjusting screw is equipped with spacing briquetting and rotatory handle, and rotatory handle is fixed in adjusting screw's outer tip, and adjusting screw is equipped with annular location arch, and spacing briquetting is fixed in the control frame and supports annular location arch inwards.
Particularly, preferably, the inner end part of the abutting rod is fixed with an abutting block, and the surface of the abutting block is provided with a hard alloy coating.
Particularly, it is further preferred that a limiting step is arranged between the inner end part of the propping rod and the inner wall of the clamping hole.
Particularly preferably, the plurality of groups of abutting assemblies are uniformly distributed around the circumference of the clamping hole.
Particularly, preferably, the number of the abutting assemblies is three, and the three abutting assemblies are distributed on the control frame at intervals of 120 degrees.
It is specific further preferred, the expansion end that compresses tightly the frame is equipped with extends the seat, extends the plane cooperation between seat and the support frame, extends the seat and wears to be equipped with locking screw to make and extend the locking force adjustable between seat and the supporting seat.
Particularly, preferably, a single dovetail groove hook is arranged on one side of the bottom of the support frame, and a locking screw hole is formed in the other side of the bottom of the support frame.
The invention has the beneficial effects that:
the stable clamping mechanism for preventing the floating free end of the cylinder from jumping can enable the floating free end of the workpiece to be inserted into the clamping hole to position the rotating center of the workpiece when the inner hole of a large cylindrical workpiece needs to be ground, so that the phenomenon that the workpiece jumps greatly in the rotating process due to the fact that the workpiece is large is avoided, and the grinding stability can be well improved.
Drawings
Fig. 1 is a schematic structural view of a stable clamping mechanism in an embodiment.
Fig. 2 is another visual schematic of the stabilized fixture of the example embodiment.
Fig. 3 is a further visual schematic of the stabilized clamping mechanism of the example embodiment.
Fig. 4 is a cross-sectional view of a stable fixture according to an embodiment.
Reference numerals:
the device comprises a control frame 1, a support frame 11, a single dovetail groove hook 111, a locking screw hole 112, a compression frame 12, an extension seat 121, a locking screw 13 and a clamping hole 14;
the support component 2, the support rod 21, the support block 211, the limit step 212, the adjusting screw 22, the annular positioning bulge 221, the limit pressing block 23 and the rotating handle 24.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The stable form fixture of this embodiment, as shown in fig. 1 to 4, including control frame 1 and specification adjustment mechanism, control frame 1 includes support frame 11 and hold-down frame 12, support frame 11 is equipped with first arc wall, hold-down frame 12 is equipped with the second arc wall, the stiff end of hold-down frame 12 is articulated each other through the round pin with support frame 11, make hold-down frame 12 can freely overturn, the expansion end of hold-down frame 12 is equipped with extension seat 121, the plane cooperation between extension seat 121 and the support frame 11, it wears to be equipped with locking screw 13 to extend seat 121, with detachable fixed support frame 11, and make the locking force between extension seat 121 and the supporting seat adjustable, to different materials, need different packing force, prevent to form wearing and tearing to the surface of work piece. Under the fixed state of the pressing frame 12 and the supporting frame 11, the first arc-shaped groove and the second arc-shaped groove can jointly enclose an expandable clamping hole 14.
A single dovetail groove hook 111 is arranged on one side of the bottom of the support frame 11, and a locking screw hole 112 is arranged on the other side of the bottom of the support frame 11. The control frame 1 is designed to be installed at the bottom of a single dovetail, the other side of the control frame is screwed into a locking screw hole 112 through a tightening block and a screw, a single dovetail groove hook 111 is tightly attached to a dovetail groove to be installed, and therefore positioning can be carried out on the same datum plane, and the center of the control frame 1 and the center of a main shaft are on the same central axis. If the base is not a dovetail groove type, a bottom connecting block can be added to adjust the height and adapt to base installation of different styles.
The specification adjusting mechanism comprises a plurality of groups of abutting assemblies 2 distributed circumferentially around the clamping hole 14, the plurality of groups of abutting assemblies 2 are uniformly distributed circumferentially around the clamping hole 14, the number of the abutting assemblies 2 in the embodiment is three, and the three groups of abutting assemblies 2 are distributed on the control frame 1 at intervals of 120 degrees. Each group of the abutting components 2 comprises an abutting rod 21 and an adjusting screw rod 22, the abutting rod 21 slidably penetrates through the control frame 1 and radially penetrates into the clamping hole 14, the adjusting screw rod 22 is rotatably installed on the control frame 1, the adjusting screw rod 22 is in threaded fit with the abutting rod 21, the inner end of the abutting rod 21, which is positioned in the clamping hole 14, is a plane, and the axial section of the inner end is trapezoidal. When the inner hole of a large cylindrical workpiece needs to be ground, the suspended free end of the workpiece can be inserted into the clamping hole 14 to position the rotation center of the workpiece, so that the phenomenon that the workpiece jumps greatly in the rotation process due to the fact that the workpiece is large is avoided, and the grinding stability can be well improved.
In this embodiment, the adjusting screw 22 and the abutting rod 21 are coaxially arranged, the adjusting screw 22 is provided with a limiting pressing block 23 and a rotating handle 24, the rotating handle 24 is fixed at the outer end of the adjusting screw 22, the adjusting screw 22 is provided with an annular positioning protrusion 221, and the limiting pressing block 23 is fixed on the control frame 1 and abuts against the annular positioning protrusion 221 inwards. The inner end part of the propping rod 21 is fixed with a propping block 211, the surface of the propping block 211 is provided with a hard alloy coating, the abrasion of a sharp point to a workpiece can be avoided, the service life of the workpiece can be prolonged, the three-point structural design can be used for positioning the center to compress tightly, the trapezoidal propping shaft is adjusted by rotating the handle 24 to compress the workpiece during use, and the workpiece is enabled to be stable in rotating and jumping. The mounting diameter is adjusted by rotating the handle 24 to control the center point. A limit step 212 is arranged between the inner end part of the propping rod 21 and the inner wall of the clamping hole 14 to restrict the moving stroke of the propping rod 21.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a stable form fixture for preventing cylinder suspension free end is beated, characterized by: the clamping device comprises a control frame and a specification adjusting mechanism, wherein the control frame comprises a supporting frame and a pressing frame, the supporting frame is provided with a first arc-shaped groove, the pressing frame is provided with a second arc-shaped groove, the fixed end of the pressing frame is hinged with the supporting frame, and the movable end of the pressing frame is detachably fixed with the supporting frame, so that the first arc-shaped groove and the second arc-shaped groove can jointly enclose an expandable clamping hole; the specification adjusting mechanism comprises a plurality of groups of abutting assemblies distributed circumferentially around the clamping hole, each group of abutting assemblies comprises an abutting rod and an adjusting screw rod, the abutting rods slidably penetrate through the control frame and penetrate into the clamping hole along the radial direction, the adjusting screw rods are rotatably arranged on the control frame and are in threaded fit with the abutting rods, and the inner ends of the abutting rods in the clamping hole are planes.
2. A stable clamping mechanism for preventing free end of column suspension from jumping as claimed in claim 1, wherein: adjusting screw and support the pole coaxial arrangement, adjusting screw is equipped with spacing briquetting and rotatory handle, and rotatory handle is fixed in adjusting screw's outer tip, and adjusting screw is equipped with annular location arch, and spacing briquetting is fixed in the control frame and supports annular location arch inwards.
3. A stable clamping mechanism for preventing free end of column suspension from jumping as claimed in claim 1, wherein: the inner end part of the propping rod is fixed with a propping block, and the surface of the propping block is provided with a hard alloy coating.
4. A stable clamping mechanism for preventing free end of column suspension from jumping as claimed in claim 1, wherein: and a limiting step is arranged between the inner end part of the propping rod and the inner wall of the clamping hole.
5. A stable clamping mechanism for preventing free end of column suspension from jumping as claimed in claim 1, wherein: the multiple groups of abutting assemblies are uniformly distributed around the circumference of the clamping hole.
6. The stable clamping mechanism for preventing the free end of the column body from jumping as claimed in claim 5, wherein: the number of the propping assemblies is three, and the three groups of propping assemblies are distributed on the control frame at intervals of 120 degrees.
7. A stable clamping mechanism for preventing free end of column suspension from jumping as claimed in claim 1, wherein: the expansion end of the hold-down frame is provided with an extension seat, the extension seat is matched with the support frame in a plane, and the extension seat is provided with a locking screw in a penetrating way so that the locking force between the extension seat and the support seat can be adjusted.
8. A stable clamping mechanism for preventing free end of column suspension from jumping as claimed in claim 1, wherein: a single dovetail groove hook is arranged on one side of the bottom of the support frame, and a locking screw hole is formed in the other side of the bottom of the support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537375.8A CN114102432A (en) | 2021-12-15 | 2021-12-15 | Stable clamping mechanism for preventing cylinder suspension free end from jumping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537375.8A CN114102432A (en) | 2021-12-15 | 2021-12-15 | Stable clamping mechanism for preventing cylinder suspension free end from jumping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114102432A true CN114102432A (en) | 2022-03-01 |
Family
ID=80364832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111537375.8A Pending CN114102432A (en) | 2021-12-15 | 2021-12-15 | Stable clamping mechanism for preventing cylinder suspension free end from jumping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114102432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847208A (en) * | 2023-03-01 | 2023-03-28 | 新乡日升数控轴承装备股份有限公司 | Positioning method for grinding center hole of shaft part with irregular outer surface |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1947779U (en) * | 1965-07-23 | 1966-10-13 | Landis Tool Co | DEVICE FOR MACHINING CIRCULATING WORKPIECES. |
| CN106826558A (en) * | 2017-03-27 | 2017-06-13 | 山东蒙沃变速器有限公司 | One kind folder peripheral milling inner hole device and its application method |
| CN206952467U (en) * | 2017-06-05 | 2018-02-02 | 江阴市三和重工钢制品有限公司 | Steel pipes with straight welds central supported positioning tool |
| CN208289633U (en) * | 2018-03-30 | 2018-12-28 | 青岛创高世纪信息科技有限公司 | A kind of tubing efficient cutting |
| CN212020438U (en) * | 2020-04-14 | 2020-11-27 | 大连鸿升机械有限公司 | Center fixing frame for grinding machine |
| CN113681468A (en) * | 2021-09-13 | 2021-11-23 | 胡功明 | High-precision center frame of numerically controlled grinder |
| CN216781454U (en) * | 2021-12-15 | 2022-06-21 | 广东豪特曼智能机器有限公司 | Stable clamping mechanism for preventing cylinder suspension free end from jumping |
-
2021
- 2021-12-15 CN CN202111537375.8A patent/CN114102432A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1947779U (en) * | 1965-07-23 | 1966-10-13 | Landis Tool Co | DEVICE FOR MACHINING CIRCULATING WORKPIECES. |
| CN106826558A (en) * | 2017-03-27 | 2017-06-13 | 山东蒙沃变速器有限公司 | One kind folder peripheral milling inner hole device and its application method |
| CN206952467U (en) * | 2017-06-05 | 2018-02-02 | 江阴市三和重工钢制品有限公司 | Steel pipes with straight welds central supported positioning tool |
| CN208289633U (en) * | 2018-03-30 | 2018-12-28 | 青岛创高世纪信息科技有限公司 | A kind of tubing efficient cutting |
| CN212020438U (en) * | 2020-04-14 | 2020-11-27 | 大连鸿升机械有限公司 | Center fixing frame for grinding machine |
| CN113681468A (en) * | 2021-09-13 | 2021-11-23 | 胡功明 | High-precision center frame of numerically controlled grinder |
| CN216781454U (en) * | 2021-12-15 | 2022-06-21 | 广东豪特曼智能机器有限公司 | Stable clamping mechanism for preventing cylinder suspension free end from jumping |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847208A (en) * | 2023-03-01 | 2023-03-28 | 新乡日升数控轴承装备股份有限公司 | Positioning method for grinding center hole of shaft part with irregular outer surface |
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