CN220863358U - Expansion-withdrawal chuck - Google Patents
Expansion-withdrawal chuck Download PDFInfo
- Publication number
- CN220863358U CN220863358U CN202322494922.XU CN202322494922U CN220863358U CN 220863358 U CN220863358 U CN 220863358U CN 202322494922 U CN202322494922 U CN 202322494922U CN 220863358 U CN220863358 U CN 220863358U
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- self
- expanding
- main shaft
- screw
- fixed block
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- 230000008961 swelling Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model provides an expanding and retreating chuck, which comprises cone bodies arranged on two sides of an expanding and retreating chuck main shaft, wherein an external thread boss is arranged on one side of the expanding and retreating chuck main shaft; the self-locking fixed block is sleeved on the outer side of the main shaft of the expanding and contracting binding head, and a conical groove is formed in the center of the self-locking fixed block; an internal thread pipe is arranged on one side of the self-locking fixed block, which is close to the external thread boss; the utility model is characterized in that a fastening module is pushed to be sleeved on an external thread boss, one side of the fastening module is pushed to be propped against the top end of a cone, when the utility model is used, the bottom of one side of a main shaft of a swelling and shrinking binding head, which is far away from the external thread boss, is arranged in a sleeve on the side of a main shaft box of a machine tool, a workpiece to be processed is sleeved on a self-locking fixed block, a moving rod is rotated to enable the inner wall of the workpiece to be attached to the outer contour of the self-locking fixed block, the workpiece and the self-locking fixed block are coaxially arranged, and after a cross countersunk screw is locked to limit an internal screw and an external screw, the assembly of a stator magnetic yoke can be completed, and the concentricity of the inner circle and the outer circle of the workpiece during processing can be ensured; the quick clamping is more suitable for batch processing.
Description
Technical Field
The utility model relates to the field of clamps, in particular to the technical field of quick clamping of stator magnetic yokes, and specifically relates to an expanding and retracting chuck.
Background
The stator magnet yoke is cylindrical as a whole, has high requirements on machining precision, particularly has very high requirements on concentricity of inner and outer circles, is mainly used for milling after positioning of a numerical control milling machine, has low machining speed and is not suitable for batch machining, long calibration time is required for calibrating parallelism and concentricity of two sides of a workpiece by means of a meter when an inner circle mill or a traditional chuck of a lathe is used for clamping, and a new clamping head is required to be designed to simply and rapidly clamp the stator magnet yoke.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a expanding/contracting chuck for solving the difficulties of the prior art.
To achieve the above and other related objects, the present utility model provides a roll head for expanding and retracting, comprising:
the expanding and contracting ligature head main shaft 1, wherein vertebral bodies 11 are arranged on two sides of the expanding and contracting ligature head main shaft 1, and an external thread boss 12 is arranged on one side of the expanding and contracting ligature head main shaft 1;
The self-locking fixed block 2 is sleeved outside the expanding and contracting head main shaft 1, and a conical groove 21 is formed in the center of the self-locking fixed block 2; an internal thread pipe 23 is arranged on one side of the self-locking fixed block 2, which is close to the external thread boss 12;
The pushing and fastening module 3 is sleeved on the external thread boss 12, and one side of the pushing and fastening module 3 is propped against the top end of the vertebral body 11.
According to a preferred embodiment, the external diameter of the externally threaded boss 12 is smaller than the internal diameter of the internally threaded tube 23.
According to the preferred scheme, a cylindrical clamping block 13 is arranged in the middle of the expanding and retreating binding head main shaft 1.
According to the preferred scheme, the cone 11 on one side of the expanding and contracting head spindle 1 far away from the external thread boss 12 is of a Moire type taper No. six.
According to the preferred scheme, the taper of the cone 11 on one side of the expansion and retraction head main shaft 1, which is close to the external thread boss 12, is larger than that of the cone on the other side.
According to a preferred scheme, the left side and the right side of the periphery of the self-locking fixed block 2 are provided with expansion grooves 22 at equal intervals.
According to the preferred scheme, the expanding and contracting head main shaft 1 and the self-locking fixed block 2 are coaxially arranged.
According to a preferred embodiment, the push-on fastening module 3 comprises:
An inner screw and an outer screw 31, wherein the inner screw and the outer screw 31 are sleeved on the outer screw thread boss 12, the top of the inner screw and the outer screw 31 is embedded in the inner screw thread pipe 23, and a moving rod 32 is welded at the bottom of the inner screw and the outer screw 31;
The locking threaded hole 33, the locking threaded hole 33 is arranged at the top of the internal threaded pipe 23, and the cross countersunk head screw 34 is embedded in the locking threaded hole 33.
According to the preferred scheme, the inner screw 31 and the outer screw 31 are driven by rotating the moving rod 32 to push the expanding and contracting head main shaft 1 to move along the conical groove 21 of the self-locking fixed block 2, so that the self-locking fixed block 2 expands due to the stretching outer diameter of the expansion groove 22.
The utility model adopts the expanding and retreating binding head spindle, the self-locking fixed block and the pushing and fastening module, when in use, the bottom of one side of the expanding and retreating binding head spindle far away from the external thread boss is arranged in a sleeve on the spindle box side of a machine tool, a workpiece to be processed is sleeved on the self-locking fixed block, a moving rod is rotated to enable the inner wall of the workpiece to be attached to the outer contour of the self-locking fixed block, the workpiece and the self-locking fixed block are coaxially arranged, and after locking, a cross countersunk screw limits an internal screw and an external screw, so that the assembly of a stator magnetic yoke can be completed; the following beneficial effects are achieved:
1. concentricity of the inner circle and the outer circle of the workpiece during processing can be ensured;
2. The quick clamping is more suitable for batch processing.
Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.
Drawings
FIG. 1 shows a schematic view in middle section of the present utility model;
FIG. 2 is an enlarged schematic view showing a three-dimensional structure of a self-locking fixing block according to the present utility model;
description of the reference numerals
1. Expanding and retracting a binding head main shaft; 11. a vertebral body; 12. an external thread boss; 13. a cylindrical clamping block; 2. self-locking fixed blocks; 21. a conical groove; 22. an expansion tank; 23. an internally threaded tube; 3. pushing the fastening module; 31. an inner screw and an outer screw; 32. a moving lever; 33. locking the threaded hole; 34. a cross countersunk head screw;
Detailed Description
In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The utility model provides a swelling and annealing chuck which is used in a clamping process, the type of a stator yoke to be processed is not limited, but the structures of a swelling and annealing chuck main shaft 1, a self-locking fixed block 2 and a pushing and fastening module 3 are particularly suitable for the processing of the stator yoke.
In general, the expanding and contracting head provided by the utility model mainly comprises an expanding and contracting head main shaft 1, a self-locking fixed block 2 and a pushing and fastening module 3, wherein, referring to fig. 1, the arrangement relation of the expanding and contracting head main shaft 1, the self-locking fixed block 2 and the pushing and fastening module 3 is shown.
The expanding and retreating rolling head is mainly used for rapidly clamping a stator yoke, the stator yoke with higher roundness requirements can be machined through a lathe or an inner circle grinding machine, when the expanding and retreating rolling head is used, one side bottom of a main shaft 1 of the expanding and retreating rolling head, which is far away from an external thread boss 12, is arranged in a sleeve on the side of a main shaft box of the lathe, the stator yoke to be machined is sleeved on a self-locking fixed block 2, an inner screw 31 and an outer screw 31 are driven to drive by a rotary moving rod 32 to push the expanding and retreating rolling head main shaft 1 to move along a conical groove 21 of the self-locking fixed block 2, the self-locking fixed block 2 expands in outer diameter due to the expansion of the expansion groove 22, the inner wall of a workpiece is attached to the outer contour of the self-locking fixed block 2, the workpiece is coaxially arranged with the self-locking fixed block 2, and the inner screw 31 and the outer screw 31 are limited by a rear locking countersunk screw 34, so that the assembly of the stator yoke can be completed.
The two sides of the expanding and retreating binding head spindle 1 are provided with the cone 11, one side of the expanding and retreating binding head spindle 1 is provided with the external thread boss 12, one side of the expanding and retreating binding head spindle 1 far away from the external thread boss 12 is provided with the cone 11 which is a Moire type taper number six, the side is used for being arranged in a sleeve of a machine tool at the bottom, and the cone with the taper is large in transmitted moment when being connected with the corresponding sleeve and convenient to detach in taper fit.
The self-locking fixed block 2 is sleeved outside the expanding and retreating binding head spindle 1, an inner threaded pipe 23 is arranged on one side, close to the outer threaded boss 12, of the self-locking fixed block 2, the outer diameter of the outer threaded boss 12 is smaller than the inner diameter of the inner threaded pipe 23, a conical groove 21 is formed in the center of the self-locking fixed block 2 and is in taper fit with the expanding and retreating binding head spindle 1, and expansion grooves 22 are formed in the left side and the right side of the periphery of the self-locking fixed block 2 at equal intervals, so that the self-locking fixed block 2 can expand.
Above-mentioned promote fastening module 3 cover and establish on external screw thread boss 12, promote fastening module 3 one side to support to establish on the centrum 11 top, promote fastening module 3 and include: the inner screw 31, the outer screw 31 is sleeved on the outer screw boss 12, the top of the inner screw 31 is embedded in the inner screw tube 23, the moving rod 32 is welded at the bottom of the inner screw 31, the locking screw hole 33 is formed at the top of the inner screw tube 23, the cross countersunk screw 34 is embedded in the locking screw hole 33, the rotating moving rod 32 drives the inner screw 31 to push the expanding and retracting head spindle 1 to move forwards and backwards along the conical groove 21, and the self-locking fixed block 2 is expanded or restored due to the expansion outer diameter of the expansion groove 22.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (5)
1. A tension roller comprising:
The expanding and contracting ligature head main shaft (1), wherein vertebral bodies (11) are arranged on two sides of the expanding and contracting ligature head main shaft (1), and an external thread boss (12) is arranged on one side of the expanding and contracting ligature head main shaft (1);
The self-locking fixing block (2), the self-locking fixing block (2) is sleeved on the outer side of the expanding and contracting head main shaft (1), and a conical groove (21) is formed in the center of the self-locking fixing block (2); an internal thread pipe (23) is arranged on one side, close to the external thread boss (12), of the self-locking fixed block (2);
The pushing and fastening module (3), the pushing and fastening module (3) is sleeved on the external thread boss (12), and one side of the pushing and fastening module (3) is propped against the top end of the vertebral body (11).
2. The expanding and contracting head according to claim 1, characterized in that a cylindrical clamping block (13) is arranged in the center of the expanding and contracting head main shaft (1).
3. The expansion and retraction chuck according to claim 2, wherein the cone (11) on the side of the main shaft (1) of the expansion and retraction chuck far from the external thread boss (12) is a morse taper number six.
4. A tensioning and retracting chuck according to claim 3, characterized in that the left and right sides of the periphery of the self-locking fixed block (2) are provided with expansion grooves (22) at equal intervals.
5. Expansion and retraction head according to claim 4, characterized in that the push-on fastening module (3) comprises:
An inner screw and an outer screw (31), wherein the inner screw and the outer screw (31) are sleeved on the outer screw thread boss (12), the top of the inner screw and the outer screw (31) are embedded in the inner screw thread pipe (23), and a moving rod (32) is welded at the bottom of the inner screw and the outer screw (31);
The locking threaded hole (33), locking threaded hole (33) are offered at female screw tube (23) top, locking threaded hole (33) embeds and is equipped with cross countersunk head screw (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494922.XU CN220863358U (en) | 2023-09-14 | 2023-09-14 | Expansion-withdrawal chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494922.XU CN220863358U (en) | 2023-09-14 | 2023-09-14 | Expansion-withdrawal chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220863358U true CN220863358U (en) | 2024-04-30 |
Family
ID=90816696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322494922.XU Active CN220863358U (en) | 2023-09-14 | 2023-09-14 | Expansion-withdrawal chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220863358U (en) |
-
2023
- 2023-09-14 CN CN202322494922.XU patent/CN220863358U/en active Active
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