CN112296375B - Elastic expansion sleeve device for finish machining of wheels - Google Patents
Elastic expansion sleeve device for finish machining of wheels Download PDFInfo
- Publication number
- CN112296375B CN112296375B CN202011219383.3A CN202011219383A CN112296375B CN 112296375 B CN112296375 B CN 112296375B CN 202011219383 A CN202011219383 A CN 202011219383A CN 112296375 B CN112296375 B CN 112296375B
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- Prior art keywords
- sleeve
- hole
- elastic expansion
- limiting
- spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
Abstract
The invention provides an elastic expansion sleeve device for finish machining of wheels, which is used for machining the wheels and comprises the following components: the lathe comprises a lathe chuck, a leaning disc, a positioning sleeve, a fixing piece, a spring sleeve, a spring, an elastic expansion sleeve, a sliding sleeve and an adjusting shaft; the elastic expansion sleeve device for finish machining of the wheel realizes the advance and retreat of the adjusting shaft by means of the deformation of the spring, so that the process has the characteristics of stability and controllability, and the phenomenon of blocking cannot occur. Meanwhile, the operation is convenient, and the processing efficiency is high. When different products are switched to be processed, only the corresponding elastic expansion sleeve, the sliding sleeve and the adjusting shaft need to be replaced, and the process method is easy to operate and high in efficiency.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to an elastic expansion sleeve device for finish machining of wheels.
Background
Because the wheel is a bearing part in the driving process of the motorcycle, the processing precision of the bearing holes on the two sides of the wheel determines the safety and the stability of the wheel in the driving process, and the coaxiality requirement of the bearing holes on the non-reference surface and the bearing holes on the reference surface is less than or equal to 0.05mm when the wheel is designed, the wheel can be ensured to meet the performance requirement. In the first-order processing, the bearing hole at one end of the wheel can be finely processed according to technical requirements until the bearing hole meets the bearing assembly requirements, but when the bearing hole at the other end of the wheel is processed in the second-order processing, the coaxiality of the bearing holes at two sides is ensured to be less than or equal to 0.05mm, and the processing technology of the existing wheel bearing hole is complex.
Disclosure of Invention
The present invention is directed to solve the above problems and to provide an elastic expansion sleeve device for wheel finishing.
The invention provides an elastic expansion sleeve device for finish machining of wheels, which is similar to the positioning machining of the wheels and comprises the following steps:
the lathe chuck is provided with a first mounting hole in the center;
the leaning disc is fixedly arranged on one side of the lathe chuck, the other side of the leaning disc is attached to one side of the wheel, and the leaning disc is used for positioning the wheel;
the positioning sleeve is arranged in the first mounting hole, a second mounting hole is formed in the center of the positioning sleeve, and a step is arranged on the inner wall of the second mounting hole;
the fixing piece is fixedly connected with the leaning disc, the fixing piece is positioned on one side of the leaning disc close to the wheel, and the positioning sleeve is detachably connected with the fixing piece;
the spring sleeve is arranged in the second mounting hole, and one end of the spring sleeve is matched with the step; one end of the spring sleeve is provided with a first limiting bulge, and the first limiting bulge is used for limiting the spring; a threaded hole is formed in the center of the spring sleeve;
the spring is arranged on the spring sleeve;
the elastic expansion sleeve is fixedly arranged on the fixing piece; a first through hole is formed in the center of the elastic expansion sleeve, and a first limiting hole is formed in one end of the first through hole; a clamping groove is formed in the inner wall of the first through hole, which is positioned at one end of the first limiting hole;
the sliding sleeve is arranged in the first through hole, and a first limiting end matched with the first limiting hole is arranged on the outer side surface of the sliding sleeve and used for limiting the sliding sleeve; the sliding sleeve slides in the first through hole; a second through hole is formed in the center of the sliding sleeve; a third limiting bulge is arranged on the inner wall of the second through hole; a fourth limiting bulge matched with the clamping groove is arranged on the outer wall of the sliding sleeve; the fourth limiting bulge is used for preventing the sliding sleeve from rotating;
the adjusting shaft is arranged in the second through hole of the sliding sleeve, one end of the adjusting shaft is provided with a second limiting end matched with the third limiting bulge, the other end of the adjusting shaft is provided with a thread, and the thread is matched with the threaded hole; the adjusting shaft is used for connecting the elastic expansion sleeve and the positioning sleeve.
Preferably, the first limiting hole is a tapered hole formed in one end of the first through hole, and the first limiting end is a tapered surface formed in the outer wall of the sliding sleeve.
Preferably, a connecting hole is formed in the center of the fixing piece and used for connecting the spring sleeve and the adjusting shaft; the fixing piece is located one side of spring housing is provided with the installation the annular groove of spring, the one end of connecting hole keeping away from the annular groove with the elasticity cover that rises cup joints.
Preferably, the fixing piece is fixedly connected with the lathe chuck through a screw.
Preferably, the positioning sleeve is fixedly connected with the fixing piece through a screw.
Preferably, the elastic expansion sleeve is fixedly connected with the fixing piece through a screw.
Preferably, a rotary clamping groove is formed in the end face, on one side of the second limiting end, of the adjusting shaft, and the rotary clamping groove is used for rotation of the adjusting shaft.
Preferably, an inner shaft is arranged at one end, located at the first limiting protrusion, of the spring sleeve, the inner shaft is used for mounting the spring, and the other end of the inner shaft is arranged in the connecting hole.
The invention has the beneficial effects that:
according to the elastic expansion sleeve device for finish machining of the wheel, the leaning disc is fixed on the lathe chuck, and meanwhile, the wheel abuts against the leaning disc; the fixed piece is fixed on a lathe chuck by a hexagonal head screw; the spring is sleeved on the inner shaft of the spring sleeve and is arranged in the connecting hole of the positioning sleeve; the inner shaft of the spring sleeve is matched with the connecting hole of the fixing piece, the positioning sleeve is fixed on the fixing piece by using an inner hexagonal screw, and at the moment, the spring sleeve generates elastic force due to compression; the elastic expansion sleeve is fixed on the fixing piece by a hexagon head screw; the sliding sleeve is sleeved in the elastic expansion sleeve, the adjusting shaft is embedded in the sliding sleeve, and the threaded end is screwed into the spring sleeve; the working principle is as follows: because the wheel is a bearing part in the driving process of the motorcycle, the processing precision of the bearing holes on the two sides of the wheel determines the safety and the stability of the wheel in the driving process, and the coaxiality requirement of the bearing holes on the non-reference surface and the bearing holes on the reference surface is less than or equal to 0.05mm when the wheel is designed, the wheel can be ensured to meet the performance requirement. In the first processing, the bearing hole at one end of the wheel can be finished according to the technical requirements until the bearing hole meets the bearing assembly requirements, but in the second processing, the coaxiality of the bearing holes at two sides is ensured to be less than or equal to 0.05mm, so that the invention of a process method is required to ensure. An elastic expansion sleeve device for finishing wheels solves the problem. After the wheel is clamped, the wheel edge leans against the backup plate, the elastic expansion sleeve is in a free state, the adjusting shaft is rotated, the sliding sleeve slowly slides to the inner side under the action of spring tension to generate radial tension, the elastic expansion sleeve deforms in the radial direction until the elastic expansion sleeve is tightly attached to the bearing hole to play a role in accurate positioning, the bearing hole on the other side is machined by taking the radial expansion sleeve as a reference, and the process is guaranteed. Because the advance and retreat of the adjusting shaft are realized by the deformation of the spring, the process has the characteristics of stability and controllability, and the phenomenon of blocking cannot occur. Meanwhile, the operation is convenient, and the processing efficiency is high. When different products are switched to be processed, only the corresponding elastic expansion sleeve, the sliding sleeve and the adjusting shaft need to be replaced, and the process method is easy to operate and high in efficiency.
Drawings
FIG. 1 is a schematic structural view of an elastic expansion sleeve device for finishing a wheel according to the present invention;
FIG. 2 is a schematic diagram of a portion of the structure of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the elastic expansion sleeve of the present invention;
the wheel comprises a lathe chuck 1, a lathe chuck 11, a first mounting hole 2, a leaning disc 3, a fixing piece 31, a connecting hole 32, an annular groove 4, a positioning sleeve 5, an elastic expansion sleeve 51, a first through hole 52, a first limiting hole 53, a clamping groove 6, a spring sleeve 61, a first limiting protrusion 62, a threaded hole 63, an inner shaft 63, a spring 7, an adjusting shaft 8, a rotating clamping groove 81, a sliding sleeve 9, a first limiting end 91, a second through hole 92, a third limiting protrusion 93 and a wheel 10.
Detailed Description
The invention provides an elastic expansion sleeve 5 device for finishing a wheel 10, and referring to fig. 1 to 3, the elastic expansion sleeve 5 device for finishing the wheel 10 is the same as the positioning and processing of the wheel 10, and comprises the following components:
the lathe chuck comprises a lathe chuck 1, wherein a first mounting hole 11 is formed in the center of the lathe chuck 1;
the leaning disc 2 is fixedly arranged on one side of the lathe chuck 1, the other side of the leaning disc 2 is attached to one side of the wheel 10, and the leaning disc 2 is used for positioning the wheel 10;
the positioning sleeve 4 is arranged in the first mounting hole 11, a second mounting hole is formed in the center of the positioning sleeve 4, and a step is arranged on the inner wall of the second mounting hole;
the fixing piece 3 is fixedly connected with the leaning disc 2, the fixing piece 3 is positioned on one side, close to the wheel 10, of the leaning disc 2, and the positioning sleeve 4 is detachably connected with the fixing piece 3;
the spring sleeve 6 is arranged in the second mounting hole, and one end of the spring sleeve 6 is matched with the step; one end of the spring sleeve 6 is provided with a first limiting bulge 61, and the first limiting bulge 61 is used for limiting the spring 7; a threaded hole 62 is formed in the center of the spring sleeve 6;
the spring 7 is arranged on the spring sleeve 6;
the elastic expansion sleeve 5 is fixedly arranged on the fixing piece 3; a first through hole 51 is formed in the center of the elastic expansion sleeve 5, and a first limiting hole 52 is formed in one end of the first through hole 51; a clamping groove 53 is formed in the inner wall of the first through hole 51, which is located at one end of the first limiting hole 52;
the sliding sleeve 9 is arranged in the first through hole 51, and a first limiting end 91 matched with the first limiting hole 52 is arranged on the outer side surface of the sliding sleeve 9 and used for limiting the sliding sleeve 9; the sliding sleeve 9 slides in the first through hole 51; a second through hole 92 is formed in the center of the sliding sleeve 9; a third limiting bulge 93 is arranged on the inner wall of the second through hole 92; a fourth limiting bulge matched with the clamping groove 53 is arranged on the outer wall of the sliding sleeve 9; the fourth limiting bulge is used for preventing the sliding sleeve 9 from rotating;
the adjusting shaft 8 is arranged in the second through hole 92 of the sliding sleeve 9, one end of the adjusting shaft 8 is provided with a second limiting end matched with the third limiting protrusion 93, the other end of the adjusting shaft 8 is provided with a thread, and the thread is matched with the threaded hole 62; the adjusting shaft 8 is used for connecting the elastic expansion sleeve 5 and the positioning sleeve 4.
In the present embodiment of the invention, the first limiting hole 52 is a tapered hole provided at one end of the first through hole 51, and the first limiting end 91 is a tapered surface provided on the outer wall of the sliding sleeve 9.
In the present embodiment of the invention, a connecting hole 31 is provided in the center of the fixing member 3, and the connecting hole 31 is used for connecting the spring housing 6 and the adjusting shaft 8; one side of the fixing part 3, which is located on the spring sleeve 6, is provided with an annular groove 32 for installing the spring 7, and one end, which is far away from the annular groove 32, of the connecting hole 31 is sleeved with the elastic expansion sleeve 5.
In this embodiment of the present invention, the fixing member 3 is fixedly connected to the lathe chuck 1 by a screw.
In the present embodiment of the present invention, the positioning sleeve 4 and the fixing member 3 are fixedly connected by a screw.
In this embodiment of the present invention, the elastic expansion sleeve 5 and the fixing member 3 are fixedly connected by a screw.
In this embodiment of the present invention, a rotating slot 81 is disposed on an end surface of the adjusting shaft 8 located at one side of the second limiting end, and the rotating slot 81 is used for rotating the adjusting shaft 8.
In the present embodiment of the invention, an inner shaft 63 is disposed at one end of the spring housing 6 located at the first limit projection 61, the inner shaft 63 is used for mounting the spring 7, and the other end of the inner shaft 63 is disposed in the connection hole 31.
The invention has the beneficial effects that:
according to the elastic expansion sleeve 5 device for finish machining of the wheel 10, the leaning disc 2 is fixed on the lathe chuck 1, and the wheel 10 abuts against the leaning disc 2; the fixed piece 3 is fixed on the lathe chuck 1 by a hexagonal head screw; the spring sleeve 6 is arranged on the inner shaft 63 of the spring sleeve 6 and is simultaneously arranged in the connecting hole 31 of the positioning sleeve 4; the inner shaft 63 of the spring sleeve 6 is matched with the connecting hole 31 of the fixing piece 3, the positioning sleeve 4 is fixed on the fixing piece 3 by using an inner hexagon screw, and at the moment, the spring sleeve 6 generates elastic force due to compression; the elastic expansion sleeve 5 is fixed on the fixing piece 3 by a hexagon head screw; the sliding sleeve 9 is arranged in the elastic expansion sleeve 5, the adjusting shaft 8 is embedded in the sliding sleeve 9, and the threaded end is screwed into the spring sleeve 6; the working principle is as follows: because the wheel 10 is a bearing part in the running process of the motorcycle, and the processing precision of the bearing holes at two sides of the wheel 10 determines the safety and stability of the wheel 10 in the running process, when the wheel 10 is designed, the coaxiality requirement of the bearing holes of the non-reference surface and the bearing holes of the reference surface is less than or equal to 0.05mm, so that the wheel 10 can be ensured to meet the performance requirement. During the first processing, the bearing hole at one end of the wheel 10 can be finished according to the technical requirements to meet the bearing assembly requirements, but during the second processing, the coaxiality of the bearing holes at the two sides is ensured to be less than or equal to 0.05mm, so that the invention of a process method is required to ensure. An elastic expansion sleeve 5 device for finishing a wheel 10 solves the problem. After the wheel 10 is clamped, the edge of the wheel 10 leans against a backup plate, the elastic expansion sleeve 5 is in a free state, the adjusting shaft 8 is rotated, the sliding sleeve 9 slowly slides towards the inner side under the action of the tension of the spring 7 to generate radial tension, the elastic expansion sleeve 5 radially deforms until being tightly attached to a bearing hole to play a role in accurate positioning, and the bearing hole on the other side is machined by taking the radial tension as a reference, so that the process is guaranteed. Because the advance and retreat of the adjusting shaft 8 are realized by the deformation of the spring 7, the process has the characteristics of stability and controllability, and the phenomenon of blocking cannot occur. Meanwhile, the operation is convenient, and the processing efficiency is high. When different products are switched and processed, only the corresponding elastic expansion sleeve 5, the sliding sleeve and the adjusting shaft 8 need to be replaced, and the method is a process method which is easy to operate and high in efficiency.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only 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 considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean 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, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present description should be considered as being described in the present specification. The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (8)
1. An elastic expansion sleeve device for wheel finishing is used for positioning of wheel machining, and is characterized by comprising:
the lathe chuck is provided with a first mounting hole in the center;
the leaning disc is fixedly arranged on one side of the lathe chuck, the other side of the leaning disc is attached to one side of the wheel, and the leaning disc is used for positioning the wheel;
the positioning sleeve is arranged in the first mounting hole, a second mounting hole is formed in the center of the positioning sleeve, and a step is arranged on the inner wall of the second mounting hole;
the fixing piece is fixedly connected with the leaning disc, the fixing piece is positioned on one side of the leaning disc close to the wheel, and the positioning sleeve is detachably connected with the fixing piece;
the spring sleeve is arranged in the second mounting hole, and one end of the spring sleeve is matched with the step; one end of the spring sleeve is provided with a first limiting bulge, and the first limiting bulge is used for limiting the spring; a threaded hole is formed in the center of the spring sleeve;
the spring is arranged on the spring sleeve;
the elastic expansion sleeve is fixedly arranged on the fixing piece; a first through hole is formed in the center of the elastic expansion sleeve, and a first limiting hole is formed in one end of the first through hole; a clamping groove is formed in the inner wall of the first through hole, which is positioned at one end of the first limiting hole;
the sliding sleeve is arranged in the first through hole, and a first limiting end matched with the first limiting hole is arranged on the outer side surface of the sliding sleeve and used for limiting the sliding sleeve; the sliding sleeve slides in the first through hole; a second through hole is formed in the center of the sliding sleeve; a third limiting bulge is arranged on the inner wall of the second through hole; a fourth limiting bulge matched with the clamping groove is arranged on the outer wall of the sliding sleeve; the fourth limiting bulge is used for preventing the sliding sleeve from rotating;
the adjusting shaft is arranged in the second through hole of the sliding sleeve, one end of the adjusting shaft is provided with a second limiting end matched with the third limiting bulge, the other end of the adjusting shaft is provided with a thread, and the thread is matched with the threaded hole; the adjusting shaft is used for connecting the elastic expansion sleeve and the positioning sleeve.
2. The elastic expansion sleeve device for finishing the wheel according to claim 1, wherein: the first limiting hole is a tapered hole formed in one end of the first through hole, and the first limiting end is a tapered surface formed in the outer wall of the sliding sleeve.
3. The elastic expansion sleeve device for finishing the wheel according to claim 1, wherein: a connecting hole is formed in the center of the fixing piece and used for connecting the spring sleeve with the adjusting shaft; the fixing piece is located one side of spring housing is provided with the installation the annular groove of spring, the one end of connecting hole keeping away from the annular groove with the elasticity cover that rises cup joints.
4. The elastic expansion sleeve device for finishing the wheel according to claim 1, wherein: the fixed piece is fixedly connected with the lathe chuck through a screw.
5. The elastic expansion sleeve device for finishing the wheel according to claim 1, wherein: the positioning sleeve is fixedly connected with the fixing piece through a screw.
6. The elastic expansion sleeve device for finishing the wheel according to claim 1, wherein: the elastic expansion sleeve is fixedly connected with the fixing piece through a screw.
7. The elastic expansion sleeve device for finishing the wheel according to claim 1, wherein: the adjusting shaft is located a side end face of the second limiting end is provided with a rotary clamping groove, and the rotary clamping groove is used for rotation of the adjusting shaft.
8. The elastic expansion sleeve device for finishing the wheel according to claim 3, wherein: an inner shaft is arranged at one end, located at the first limiting protrusion, of the spring sleeve and used for installing the spring, and the other end of the inner shaft is arranged in the connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219383.3A CN112296375B (en) | 2020-11-04 | 2020-11-04 | Elastic expansion sleeve device for finish machining of wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219383.3A CN112296375B (en) | 2020-11-04 | 2020-11-04 | Elastic expansion sleeve device for finish machining of wheels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112296375A CN112296375A (en) | 2021-02-02 |
| CN112296375B true CN112296375B (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011219383.3A Active CN112296375B (en) | 2020-11-04 | 2020-11-04 | Elastic expansion sleeve device for finish machining of wheels |
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| Country | Link |
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| CN (1) | CN112296375B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6502834B1 (en) * | 2000-11-07 | 2003-01-07 | Howa Machinery, Ltd. | Holding chuck for a tire-wheel with a chatter-suppressing device |
| CN201516564U (en) * | 2009-09-18 | 2010-06-30 | 江苏太平洋精锻科技股份有限公司 | Conical surface lathe machining clamp for combined gears |
| CN201815694U (en) * | 2010-09-28 | 2011-05-04 | 中国一拖集团有限公司 | End surface positioning expanding mandrel for involute internal spline |
| CN201960149U (en) * | 2011-01-30 | 2011-09-07 | 江苏中力齿轮有限公司 | Improved high-precision gear rough-turning clamp |
| CN207770877U (en) * | 2017-12-20 | 2018-08-28 | 香河凯华齿轮有限公司 | Elastic expansion-sleeve clamp structure |
| CN211758565U (en) * | 2019-12-30 | 2020-10-27 | 绍兴市上虞杰成制冷配件厂 | Copper pipe outer wall processing clamping device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798680A (en) * | 2016-05-01 | 2016-07-27 | 中信戴卡股份有限公司 | Automobile wheel lathe clamp |
| CN106737308B (en) * | 2017-02-24 | 2018-10-09 | 中信戴卡股份有限公司 | Flexible clamping device |
-
2020
- 2020-11-04 CN CN202011219383.3A patent/CN112296375B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6502834B1 (en) * | 2000-11-07 | 2003-01-07 | Howa Machinery, Ltd. | Holding chuck for a tire-wheel with a chatter-suppressing device |
| CN201516564U (en) * | 2009-09-18 | 2010-06-30 | 江苏太平洋精锻科技股份有限公司 | Conical surface lathe machining clamp for combined gears |
| CN201815694U (en) * | 2010-09-28 | 2011-05-04 | 中国一拖集团有限公司 | End surface positioning expanding mandrel for involute internal spline |
| CN201960149U (en) * | 2011-01-30 | 2011-09-07 | 江苏中力齿轮有限公司 | Improved high-precision gear rough-turning clamp |
| CN207770877U (en) * | 2017-12-20 | 2018-08-28 | 香河凯华齿轮有限公司 | Elastic expansion-sleeve clamp structure |
| CN211758565U (en) * | 2019-12-30 | 2020-10-27 | 绍兴市上虞杰成制冷配件厂 | Copper pipe outer wall processing clamping device |
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| Publication number | Publication date |
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| CN112296375A (en) | 2021-02-02 |
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