CN113927232B - High-precision positioning mandrel - Google Patents
High-precision positioning mandrel Download PDFInfo
- Publication number
- CN113927232B CN113927232B CN202111264407.1A CN202111264407A CN113927232B CN 113927232 B CN113927232 B CN 113927232B CN 202111264407 A CN202111264407 A CN 202111264407A CN 113927232 B CN113927232 B CN 113927232B
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- China
- Prior art keywords
- mounting shaft
- wedge block
- wedge
- adjusting sleeve
- chute
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- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 230000000670 limiting effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a high-precision positioning mandrel which comprises a mounting shaft, wherein a plurality of positioning assemblies are arranged on the mounting shaft along the length direction, an adjusting sleeve and a wedge block are arranged on the positioning assemblies, the wedge block is arranged in a plurality around the circumference of the mounting shaft, a matched inclined surface structure is arranged between the wedge block and the mounting shaft and used for being opened or closed through the matching of the inclined surface structure when moving along the axial direction of the mounting shaft, the adjusting sleeve can be movably and adjustably arranged on the mounting shaft along the axial direction of the mounting shaft, and the adjusting sleeve is matched with the wedge block and used for driving the wedge block to move along the axial direction of the mounting shaft in the moving process. According to the structure, after the parts are assembled and fixed, the wedge blocks are controlled to be folded through the adjusting sleeve, so that the mounting shaft is separated from the parts, the parts can be taken out smoothly, and the brute force is not required, so that the labor intensity can be effectively reduced, meanwhile, the damage to the mounting shaft can be avoided, and the service life is prolonged.
Description
Technical Field
The invention relates to a positioning tool, in particular to a high-precision positioning mandrel.
Background
When assembling and fixing the parts according to the positioning requirement of the shaft holes, positioning mandrels are usually arranged in the corresponding shaft holes to ensure the coaxiality of the corresponding shaft holes on the parts, and then assembling and fixing, such as welding and fixing, are performed.
The traditional positioning mandrel adopts an optical axis structure with longer length which is led into the shaft hole, the assembly gap between the positioning mandrel and the corresponding shaft hole is larger, and then, due to the influence of welding stress in the welding process, parts are inclined to some extent, so that the positioning mandrel after welding is not easy to take out, and the positioning mandrel needs to be forcibly taken out by using brute force. Therefore, the traditional positioning mandrel has the problems of low positioning precision, high labor intensity, short service life and the like.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a high-precision positioning mandrel, which can solve the problems of low positioning precision, high labor intensity and short service life of the traditional structure.
According to the high-precision positioning mandrel, the high-precision positioning mandrel comprises a mounting shaft, a plurality of positioning assemblies are arranged on the mounting shaft along the length direction, an adjusting sleeve and a wedge block are arranged on the positioning assemblies, the wedge block is arranged in a plurality around the circumference of the mounting shaft, a matched inclined surface structure is arranged between the wedge block and the mounting shaft and used for being matched with the inclined surface structure to open or close when moving along the axial direction of the mounting shaft, the adjusting sleeve can be arranged on the mounting shaft in a movable and adjustable mode along the axial direction of the mounting shaft, and the adjusting sleeve is matched with the wedge block and used for driving the wedge block to move along the axial direction of the mounting shaft in the moving process.
According to the embodiment of the invention, at least the following technical effects are achieved:
According to the invention, the wedge blocks can be controlled by the adjusting sleeve to realize opening and closing adjustment, when the wedge blocks are used for positioning a plurality of parts to assist assembly and fixation, the corresponding positioning assemblies can be arranged corresponding to the number of specific parts, the wedge blocks are controlled by the adjusting sleeve to be in a closing state, so that the mounting shaft is smoothly inserted into the corresponding shaft hole, and then the wedge blocks are controlled by the adjusting sleeve to be opened, clamping and positioning are performed from the inner side of the shaft hole, and no assembly gap exists, so that the positioning precision is high. After the parts are assembled and fixed, the wedge blocks are controlled to be folded through the adjusting sleeve, so that the mounting shaft is separated from the parts, the parts can be taken out smoothly without using brute force, the labor intensity can be effectively reduced, meanwhile, the damage to the mounting shaft can be avoided, and the service life is prolonged.
According to some embodiments of the invention, each positioning assembly is provided with two adjustment sleeves, and the wedge is located between and abuts against the two adjustment sleeves.
According to some embodiments of the invention, the adjusting sleeve is screwed to the mounting shaft, and the end of the wedge extends to an inner diameter of the adjusting sleeve.
According to some embodiments of the invention, a chute is arranged on the installation shaft, the section of the chute is rectangular, the wedge block is slidably assembled in the chute, the inclined surface structure is arranged between the bottom of the chute and the wedge block, one end of the wedge block, which is far away from the axis of the installation shaft, is provided with a first cone part, and one end of the first cone part, which is far away from the axis of the installation shaft, is provided with a first contact surface in the form of an arc surface.
According to some embodiments of the invention, the wedge is provided with second tapered portions at both ends in the axial direction of the mounting shaft, the second tapered portions being provided with second contact surfaces extending obliquely in the direction of the groove bottom of the chute along the end portions of the first contact surfaces for abutting against the inner wall of the adjustment sleeve via the second contact surfaces.
According to some embodiments of the invention, the wedge is provided with guide surfaces at two end positions of the bottom, the guide surfaces extending obliquely upward from the bottom of the wedge in a direction opposite to the direction of inclination of the second contact surface.
According to some embodiments of the invention, the inner wall of the adjusting sleeve is provided with a chamfer at an end near the wedge block to form a third contact surface adapted to the second contact surface.
According to some embodiments of the invention, one end of the groove bottom of the chute is flush with the surface of the mounting shaft, and the other end of the groove bottom of the chute extends obliquely to the axial center position of the mounting shaft.
According to some embodiments of the invention, the surface of the mounting shaft is provided with a thread section corresponding to each positioning assembly, and the chute is arranged at the middle position of the thread section in the axial direction.
According to some embodiments of the invention, the outer surface of the adjusting sleeve is circumferentially provided with a plurality of recesses, between two adjacent recesses a protrusion is formed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a construction of the positioning assembly;
FIG. 3 is a schematic illustration of a distribution of wedges;
FIGS. 4 and 5 are schematic views of a construction of the wedge;
FIGS. 6 and 7 are schematic views of a construction of the adjusting sleeve;
Fig. 8 and 9 are schematic diagrams of one operation of the high precision positioning mandrel.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 9, the present invention proposes a high precision positioning mandrel, which includes a mounting shaft 100, the mounting shaft 100 is provided with a plurality of positioning assemblies 200 along a length direction, the positioning assemblies 200 are provided with an adjusting sleeve 201 and a wedge 202, the wedge 202 is provided with a plurality of wedge 202 around a circumference of the mounting shaft 100, and a matched inclined structure is provided between the wedge 202 and the mounting shaft 100, so as to be used for opening or closing through the matching of the inclined structure when moving along an axial direction of the mounting shaft 100, the adjusting sleeve 201 can be movably and adjustably arranged on the mounting shaft 100 along the axial direction of the mounting shaft 100, and the adjusting sleeve 201 is matched with the wedge 202 so as to be used for driving the wedge 202 to move along the axial direction of the mounting shaft 100 in a moving process.
According to the invention, the wedge block 202 can be controlled by the adjusting sleeve 201 to realize opening and closing adjustment, when the adjusting sleeve is used for positioning a plurality of parts to assist assembly and fixation, a corresponding number of positioning assemblies 200 can be arranged corresponding to the number of specific parts, the adjusting sleeve 201 is used for controlling the wedge block 202 to be in a closing state, so that the mounting shaft 100 is smoothly inserted into a corresponding shaft hole, the adjusting sleeve 201 is used for controlling the wedge block 202 to be opened, clamping and positioning are carried out from the inner side of the shaft hole, and no assembly gap exists, therefore, the positioning precision is high. After the parts are assembled and fixed, the wedge blocks 202 are controlled to be folded through the adjusting sleeve 201, so that the mounting shaft 100 is separated from the parts, and can be taken out smoothly without using a brute force, so that the labor intensity can be effectively reduced, the damage to the mounting shaft 100 can be avoided, and the service life can be prolonged.
In actual setting, the wedge 202 may be mounted on the mounting shaft 100 by providing a slot structure with a convex cross section, where the wedge 202 is adapted to the slot structure and has a portion exposed on the surface of the mounting shaft 100, so that the adjusting sleeve 201 can act on the exposed portion to push the wedge 202 to move along the slot structure. It will be appreciated that the ramp structure is disposed between the detent structure and the wedge 202. When the structure of the present embodiment is adopted, only one adjusting sleeve 201 may be provided to realize the movement adjustment of the wedge 202, or a plurality of adjusting sleeves 201 may be provided to realize the movement adjustment of the wedge 202.
In some embodiments of the invention, each positioning assembly 200 is provided with two adjustment sleeves 201, with the wedge 202 being located between and abutting the two adjustment sleeves 201. By adopting the structural arrangement of the embodiment, the two ends of the wedge block 202 can be limited through the two adjusting sleeves 201, so that the stability and the positioning accuracy of the wedge block 202 are improved.
In order to simplify the adjustment form and the structural arrangement of the adjustment sleeve 201, the adjustment sleeve 201 is screwed to the mounting shaft 100.
Considering that if each positioning assembly 200 only carries out the movement adjustment of the wedge 202 through one adjusting sleeve 201, the adjusting sleeve 201 can only push the wedge 202, and the anti-falling of the wedge 202 (i.e. preventing the wedge 202 from falling out of the mounting shaft 100) needs to be realized through the structural cooperation of the wedge 202 and the mounting shaft 100, such as the clamping groove structure in the foregoing embodiment to realize the mounting and sliding guiding of the wedge 202, the structural arrangement can increase the processing difficulty and the assembly difficulty, therefore, in some embodiments of the present invention, each positioning assembly 200 is provided with two adjusting sleeves 201, and the wedge 202 is located between and abutted against the two adjusting sleeves 201. The adjusting sleeve 201 is connected with the mounting shaft 100 through threads, and the end of the wedge 202 extends to the inner diameter portion of the adjusting sleeve 201. With the configuration of the present embodiment, the end of the wedge 202 can be engaged by the adjusting bush 201, and the wedge 202 is prevented from coming out. Therefore, with the configuration of the present embodiment, the anti-slip structure is not required between the wedge 202 and the mounting shaft 100, and the configuration of the mounting shaft 100 can be simplified.
In some embodiments of the present invention, a chute is disposed on the mounting shaft 100, the section of the chute is rectangular, the wedge 202 is slidably fitted in the chute, a slope structure is disposed between the bottom of the chute and the wedge 202, one end of the wedge 202 away from the axis of the mounting shaft 100 is provided with a first cone 203, and one end of the first cone 203 away from the axis of the mounting shaft 100 is provided with a first contact surface 204 in the form of an arc surface. By adopting the structural arrangement of the embodiment, the installation shaft 100 only needs to be provided with the chute, the section of the chute is rectangular, namely, the side wall of the chute is in a plane form, so that the processing is convenient, the processing difficulty is low, the wedge block 202 is directly assembled in the chute, and the assembly of the wedge block 202 on the installation shaft 100 is convenient. The provision of the first tapered portion 203 can reduce the size of the end of the wedge 202 (i.e., the end remote from the axis of the mounting shaft 100) to facilitate the mating of shaft holes of different sizes. On this basis, the end of the first cone 203 is provided with the first contact surface 204 in the form of an arc surface as shown in fig. 4, so that the wedge 202 is in line contact with the shaft hole of the component, and abrasion can be reduced.
In some embodiments of the invention, the wedge 202 is provided with a second taper 205 along both axial ends of the mounting shaft 100, the second taper 205 being provided with a second contact surface 206, the second contact surface 206 extending obliquely along the end of the first contact surface 204 towards the bottom of the chute for abutting the inner wall of the adjustment sleeve 201 via the second contact surface 206. Similarly, by adopting the structural arrangement of the embodiment, the wedge block 202 is convenient to butt joint the adjusting sleeve 201, friction and abrasion between the wedge block 202 and the adjusting sleeve are reduced, and meanwhile, the limiting effect of the adjusting sleeve 201 on the wedge block 202 along the axial direction and the radial direction of the mounting shaft 100 is also facilitated.
In some embodiments of the present invention, guide surfaces 207 are provided at both end positions of the bottom of the wedge 202, and the guide surfaces 207 extend obliquely upward from the bottom of the wedge 202 in an opposite direction to the direction of inclination of the second contact surface 206. With the structural arrangement of this embodiment, a V-angle guiding structure is formed between the two ends of the bottom of the wedge 202 and the bottom of the chute, when dust and impurities enter the chute, the dust and impurities can be pressed into the bottom of the chute through the guiding surface 207, and the impurities cannot be scooped up along the second contact surface 206 between the adjusting sleeve 201 and the threads of the mounting shaft 100, which is beneficial to ensuring the smoothness of the work.
In some embodiments of the present invention, the inner wall of the adjustment sleeve 201 is provided with a chamfer at the end near the wedge 202 to form a third contact surface 301 that mates with the second contact surface 206. The third contact surface 301 is convenient to butt against the wedge block 202, limiting the wedge block 202, and is beneficial to reducing abrasion to the wedge block 202 compared with a right-angle structure.
In some embodiments of the present invention, one end of the groove bottom of the chute is flush with the surface of the mounting shaft 100, and the other end of the groove bottom of the chute extends obliquely to the axial center position of the mounting shaft 100. That is, the chute extends obliquely from the surface of the mounting shaft 100 toward the axial center of the mounting shaft 100. With the structural arrangement of this embodiment, the wedge 202 is conveniently pushed into or removed from the chute. In practical application, the wedge blocks 202 with different heights are convenient to replace, so that more shaft hole sizes are adapted, and the application range is enlarged.
In some embodiments of the invention, the surface of the mounting shaft 100 is provided with a threaded section for each positioning assembly 200, and the chute is open at an axially intermediate position of the threaded section. With the structural arrangement of this embodiment, the installation and adjustment of the adjustment sleeve 201 are facilitated.
In some embodiments of the present invention, the outer surface of the adjustment sleeve 201 is circumferentially provided with a plurality of recesses 300, with a protrusion formed between two adjacent recesses 300. With the structural arrangement of the embodiment, the rotation convenience of the adjusting sleeve 201 can be improved through the arrangement of the concave part 300 and the convex part, and the adjustment is convenient.
It should be understood that the wedge 202 in the present invention may be exposed to the mounting shaft 100, and the end surface for being engaged with the shaft hole of the component may be parallel to the axial direction of the mounting shaft 100, or may be other structures capable of being engaged with the shaft hole, which is not limited herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. The high-precision positioning mandrel is characterized by comprising a mounting shaft, wherein a plurality of positioning assemblies are arranged on the mounting shaft along the length direction, an adjusting sleeve and a wedge block are arranged on the positioning assemblies, a plurality of wedge blocks are arranged around the circumference of the mounting shaft, a matched inclined surface structure is arranged between the wedge blocks and the mounting shaft and used for being matched with the inclined surface structure to open or close when the wedge blocks move along the axial direction of the mounting shaft, the adjusting sleeve can be arranged on the mounting shaft in an adjustable manner along the axial movement of the mounting shaft, and the adjusting sleeve is matched with the wedge blocks and used for driving the wedge blocks to move along the axial direction of the mounting shaft in the moving process;
each positioning assembly is provided with two adjusting sleeves, and the wedge blocks are positioned between and abutted against the two adjusting sleeves;
the adjusting sleeve is connected with the mounting shaft through threads, and the end part of the wedge block extends to the inner diameter part of the adjusting sleeve;
The wedge block is arranged on the mounting shaft, the cross section of the wedge block is rectangular, the wedge block is slidably assembled in the wedge block, the inclined surface structure is arranged between the bottom of the wedge block and the wedge block, one end of the wedge block, which is far away from the axis of the mounting shaft, is provided with a first cone part, and one end of the first cone part, which is far away from the axis of the mounting shaft, is provided with a first contact surface in the form of an arc surface;
the wedge block is provided with second conical parts along the two axial ends of the mounting shaft, the second conical parts are provided with second contact surfaces, and the second contact surfaces extend obliquely towards the bottom direction of the chute along the end parts of the first contact surfaces so as to be used for abutting against the inner wall of the adjusting sleeve through the second contact surfaces;
Guide surfaces are arranged at two ends of the bottom of the wedge block, and extend upwards obliquely from the bottom of the wedge block, and the oblique direction of the guide surfaces is opposite to that of the second contact surface.
2. The high precision positioning mandrel as claimed in claim 1, wherein the inner wall of the adjustment sleeve is provided with a chamfer structure at one end near the wedge block to form a third contact surface adapted to the second contact surface.
3. The high-precision positioning mandrel according to claim 1, wherein one end of the groove bottom of the chute is flush with the surface of the mounting shaft, and the other end of the groove bottom of the chute extends obliquely to the axial center position of the mounting shaft.
4. The high-precision positioning mandrel of claim 1, wherein a threaded section is provided on a surface of the mounting shaft corresponding to each positioning assembly, and the chute is provided at an axially intermediate position of the threaded section.
5. The high-precision positioning mandrel of claim 4, wherein the outer surface of the adjustment sleeve is circumferentially provided with a plurality of recesses, and a protrusion is formed between two adjacent recesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264407.1A CN113927232B (en) | 2021-10-28 | 2021-10-28 | High-precision positioning mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264407.1A CN113927232B (en) | 2021-10-28 | 2021-10-28 | High-precision positioning mandrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113927232A CN113927232A (en) | 2022-01-14 |
| CN113927232B true CN113927232B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111264407.1A Active CN113927232B (en) | 2021-10-28 | 2021-10-28 | High-precision positioning mandrel |
Country Status (1)
| Country | Link |
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| CN (1) | CN113927232B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD217729A1 (en) * | 1983-09-29 | 1985-01-23 | Nagema Veb K | SPANNDORN FOR THE TAKE-UP OF GEARS |
| CA2518112A1 (en) * | 2005-09-02 | 2007-03-02 | Mario Fabris | Reaction force expanding and clamping device |
| CN103286323A (en) * | 2013-05-02 | 2013-09-11 | 中冶陕压重工设备有限公司 | Method for processing long thin-walled sleeve parts by utilizing tyre-expansion type mandrel |
| CN203714989U (en) * | 2014-01-17 | 2014-07-16 | 宋云天 | Tensioning shaft |
| CN203751955U (en) * | 2014-03-26 | 2014-08-06 | 徐文茜 | Sleeve type workpiece fixture |
| EP2881596A1 (en) * | 2013-12-09 | 2015-06-10 | E. Hawle Armaturenwerke GmbH | Mounting wedge |
| CN205565614U (en) * | 2016-04-06 | 2016-09-07 | 上海怡博船务有限公司 | Slim compact heap of high lift |
| CN206415645U (en) * | 2016-11-16 | 2017-08-18 | 天津市源泉机电设备制造有限公司 | Electric machine casing processing positioner |
| CN206751023U (en) * | 2017-06-02 | 2017-12-15 | 安徽中烟工业有限责任公司 | A kind of obbbin mandrel tensioning apparatus of cigarette making and tipping machine |
| CN206785814U (en) * | 2017-05-08 | 2017-12-22 | 洛帝牢紧固系统(上海)有限公司 | Expansion pin |
| CN207668541U (en) * | 2017-06-30 | 2018-07-31 | 江苏俊云机械科技有限公司 | A kind of mechanical expanding shaft |
-
2021
- 2021-10-28 CN CN202111264407.1A patent/CN113927232B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD217729A1 (en) * | 1983-09-29 | 1985-01-23 | Nagema Veb K | SPANNDORN FOR THE TAKE-UP OF GEARS |
| CA2518112A1 (en) * | 2005-09-02 | 2007-03-02 | Mario Fabris | Reaction force expanding and clamping device |
| CN103286323A (en) * | 2013-05-02 | 2013-09-11 | 中冶陕压重工设备有限公司 | Method for processing long thin-walled sleeve parts by utilizing tyre-expansion type mandrel |
| EP2881596A1 (en) * | 2013-12-09 | 2015-06-10 | E. Hawle Armaturenwerke GmbH | Mounting wedge |
| CN203714989U (en) * | 2014-01-17 | 2014-07-16 | 宋云天 | Tensioning shaft |
| CN203751955U (en) * | 2014-03-26 | 2014-08-06 | 徐文茜 | Sleeve type workpiece fixture |
| CN205565614U (en) * | 2016-04-06 | 2016-09-07 | 上海怡博船务有限公司 | Slim compact heap of high lift |
| CN206415645U (en) * | 2016-11-16 | 2017-08-18 | 天津市源泉机电设备制造有限公司 | Electric machine casing processing positioner |
| CN206785814U (en) * | 2017-05-08 | 2017-12-22 | 洛帝牢紧固系统(上海)有限公司 | Expansion pin |
| CN206751023U (en) * | 2017-06-02 | 2017-12-15 | 安徽中烟工业有限责任公司 | A kind of obbbin mandrel tensioning apparatus of cigarette making and tipping machine |
| CN207668541U (en) * | 2017-06-30 | 2018-07-31 | 江苏俊云机械科技有限公司 | A kind of mechanical expanding shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113927232A (en) | 2022-01-14 |
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