CN114310732B - Electromagnetic clamp for clamping cylinder sleeve - Google Patents
Electromagnetic clamp for clamping cylinder sleeve Download PDFInfo
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- CN114310732B CN114310732B CN202210173382.2A CN202210173382A CN114310732B CN 114310732 B CN114310732 B CN 114310732B CN 202210173382 A CN202210173382 A CN 202210173382A CN 114310732 B CN114310732 B CN 114310732B
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- clamping
- cylinder sleeve
- chuck
- clamping chuck
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Abstract
An electromagnetic clamp for clamping a cylinder sleeve is characterized by comprising a base, wherein two supports are fixedly connected to the upper surface of the base, threaded holes are formed in the end face and the upper surface of a first support and used for installing an end cover and a locking screw, the end cover and the locking screw are used for fixing a clamping chuck, the clamping chuck is provided with grooves which are uniformly distributed in the circumferential direction, the end face is connected with packaging coils, the packaging coils are uniformly distributed in the circumferential direction, and arc-shaped iron cores are arranged inside the packaging coils; the end face of the second support is connected with a limiting plate, and the limiting plate is used for guaranteeing consistency of clamping positions of the cylinder sleeve. The clamping device can realize the clamping of the inner hole and the outer circle of the cylinder sleeve by changing the current direction in the coil, and can realize the adjustment of the clamping force by changing the current magnitude.
Description
Technical Field
The invention relates to an electric clamp technology, in particular to a high-precision clamping device for an inner circle or an outer circle of a cylinder sleeve, and specifically relates to an electromagnetic clamp for clamping the cylinder sleeve.
Background
The cylinder liner is a key part of the engine, is used for a core power assembly of the engine and determines the service life of the engine. Therefore, the development and preparation of high-performance cylinder liners are of great strategic importance.
Chinese patent discloses a cylinder jacket clamp (publication number: CN 107900746A), comprising: the device comprises a base, a first swing mechanism, a second swing mechanism and a synchronous driving device, wherein the first swing mechanism is provided with a first V-shaped positioning part, and the swing axis of the first swing mechanism is parallel to a cylinder sleeve; the second swing mechanism provides a second V-shaped positioning part; the synchronous driving device is used for synchronously driving the first swing mechanism and the second swing mechanism so as to enable the two swing mechanisms to move in opposite directions or in opposite directions. The structure has high requirement on design precision, and the clamping force is uneven, so that the surface of the cylinder sleeve is easy to deform and scratch, and the processing precision is influenced; and the clamp is not provided with an axial positioning device, so that the clamping position is inconsistent.
Chinese patent discloses a spring chuck clamp (publication number: CN 110509087A), which comprises a bottom plate, a fixing frame and a fixing pipe, wherein motors are fixedly connected to the lower side and one end of the upper side of the fixing frame, the fixing pipe is connected to one side of the fixing plate, a sliding pipe is slidably connected to the outer side of the fixing pipe, the fixing pipe can be fixed from the inner part of the spring chuck through the inner wall fixing pipe, the inner wall fixing rod is provided with a protruding direction, the inner wall fixing rod can be conveniently folded, and the outer wall of the spring chuck can be fixed through an outer wall fixer. The fixture solves the problems of poor practicability and low processing efficiency of the spring chuck, but has a complex structure, contains a plurality of link mechanisms and is high in maintenance cost.
Chinese patent discloses a cylinder sleeve clamp (publication number: CN 214054976U), which comprises a clamp shell, a push rod, a plurality of steel balls, a driving device, a separation device and a control system, wherein the driving device is connected with the push rod and is used for driving the push rod to push the steel balls to move so as to eject the steel balls from a through hole; the separation device is used for separating the cylinder sleeve from the clamp shell; the control system is used for controlling the driving device and the disengaging device. The clamp realizes the clamping of the cylinder sleeve by the contact of the steel balls and the inner circumferential surface of the cylinder sleeve, and the local deformation of the cylinder sleeve is easily caused because the contact surface of the steel balls and the cylinder sleeve is very small.
The existing cylinder sleeve clamp has the problems of small contact area between a clamping element and a cylinder sleeve, uneven distribution of clamping force and the like, is easy to cause local deformation of the cylinder sleeve, mostly adopts driving modes such as hydraulic pressure, air pressure and the like, and cannot realize flexible control on the clamp.
Disclosure of Invention
The invention aims to solve the problems that the existing cylinder sleeve clamp is complex in structure and uneven in force application, so that the cylinder sleeve is easy to deform, and the cylinder sleeve electromagnetic clamp which is simple in structure, strong in applicability, flexible to control and long in service life is designed to solve the problems that the contact area between a clamping element of the existing cylinder sleeve clamp and a cylinder sleeve is small, the clamping force is uneven in distribution, and the clamp is difficult to flexibly control.
The technical scheme of the invention is as follows:
the utility model provides an electromagnetic clamp of centre gripping cylinder jacket which characterized by includes: the clamping device comprises a base 1, wherein two supports are fixedly connected to the upper surface of the base 1, threaded holes are formed in the end surface and the upper surface of a first support 2 and used for installing an end cover 3 and a locking screw 5, the end cover 3 and the locking screw 5 are used for fixing one end of a clamping chuck 4, an encapsulating coil 6 is connected to the end surface of the other end of the clamping chuck 4 and sleeved in a through hole of a second support 7, a limiting plate 8 is connected to the end surface of the second support 7, and the limiting plate 8 is used for ensuring the consistency of the clamping position of a cylinder sleeve; the cylinder sleeve is inserted into the clamping chuck 4 or sleeved in the clamping chuck 4, and the head of the clamping chuck 4 is contracted or expanded by the electromagnetic force generated by electrifying the packaging coil 6, so that the cylinder sleeve is clamped from the outside or is tensioned from the inside, and the clamping of the cylinder sleeve is realized.
U-shaped holes are formed in the connecting positions of the base 1, the first support 2 and the second support 7 and used for fine adjustment of the assembling position of the supports; the periphery of one side of the clamping chuck 4 is provided with a trapezoidal groove 9 which is used for being matched with the locking screw 5 for fastening.
The clamping chuck 4 is provided with a plurality of grooves which are uniformly distributed in the circumferential direction, and the clamping chuck 4 is divided into a plurality of uniform sections for clamping the cylinder sleeve; the end face of the clamping chuck 4 is provided with a plurality of threaded holes for connecting the packaging coil 6.
The packaged coil 6 comprises a coil casing 61 and an electromagnet 62, wherein a lead is wound on the electromagnet 62, and the electromagnet 62 and the lead are packaged in the coil casing 61; the encapsulated coils 6 are evenly distributed along the circumference of the clamping jaw 4, the number of which is equal to the number of slots in the clamping jaw 4.
The electromagnets 62 are provided with wires for controlling the conduction, disconnection and current flow of the electromagnets 62.
The cross section of the iron core of the electromagnet 62 is rectangular and is arc-shaped, the iron cores are uniformly distributed along the circumferential direction, and the cross sections are parallel to each other.
The limiting plate 8 is Z-shaped, one section of the limiting plate is used for being connected with the second support 7, and the other section of the limiting plate is used for limiting the clamping position of the cylinder sleeve.
The invention has the beneficial effects that:
the clamping of the inner holes and the outer circles of different cylinder sleeves can be realized by changing the current direction in the electromagnet coils, if the coils are all electrified with currents in the same direction, the electromagnets are attracted end to drive the inner circle of the clamping chuck to contract, and the clamping of the outer circle of the cylinder sleeve is realized; if the adjacent coils are electrified with reverse current, the electromagnets repel each other end to drive the outer ring of the clamping chuck to expand, so that the inner hole of the cylinder sleeve is clamped; the whole adjustment of the clamping force can be realized by changing the current passing through the electromagnet, the fine adjustment of the clamping force can be realized by adjusting the current on the single electromagnet, and the device has the advantages of simple structure, strong applicability, flexible control and lower manufacturing cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic view of the structure of the clamping chuck of the present invention.
Fig. 4 is a disassembled structural diagram of the encapsulated coil of the invention.
Fig. 5 is a schematic diagram of the magnetic induction line of the iron core according to the present invention.
Fig. 6 is a second schematic diagram of the magnetic induction line of the iron core of the present invention.
In the figure: 1. a base; 2. a first support; 3. an end cap; 4. clamping the chuck; 5. locking the screw; 6. packaging the coil; 7. a second support; 8. a limiting plate; 61. a coil housing; 62. an electromagnet.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1-4.
An electromagnetic clamp for clamping a cylinder liner, comprising: the upper surface of the base 1 is fixedly connected with two supports, and U-shaped holes are formed in the connecting positions of the base 1, the first support 2 and the second support 7 and used for fine adjustment of the assembling positions of the supports; the end face (figure 2) and the upper surface (figure 1) of the first support 2 are provided with threaded holes for mounting an end cover 3 and a locking screw 5, the end cover 3 and the locking screw 5 are used for fixing a clamping chuck 4, and the end face of the clamping chuck 4 is connected with a packaging coil 6; the end face of the second support 7 is connected with a limiting plate 8, and the limiting plate 8 is used for guaranteeing the consistency of the clamping position of the cylinder sleeve A, as shown in figure 1.
Specifically, a trapezoidal groove 9 is formed in the circumferential surface of one side of the clamping chuck 4, and is used for being fastened in cooperation with the locking screw 5, and a plurality of grooves are uniformly distributed in the circumferential direction, as shown in fig. 3, so that the clamping end of the clamping chuck 4 forms a six-claw clamping structure, six in the embodiment, the clamping chuck 4 is uniformly divided into six sections for clamping the cylinder liner a; the end face of the clamping chuck 4 is provided with a plurality of threaded holes for connecting the packaging coil 6; the packaging coil 6 comprises a coil casing 61 and electromagnets 62 installed in the coil casing 61, the surface of each electromagnet 62 is wound with a lead, the packaging coils 6 are uniformly distributed along the circumferential direction, and the number of the packaging coils 6 is equal to the number of the grooves on the clamping chuck 4, as shown in fig. 4; the coil casing 61 and the electromagnet 62 are wound with wires for controlling the electromagnet 62 to be switched on and off and the current flow direction, as shown in the figure; the cross section of the iron core of the electromagnet 62 is rectangular and is arc-shaped, the iron cores are uniformly distributed along the circumferential direction, and the cross sections are parallel to each other; the limiting plate 8 is Z-shaped, one section of the limiting plate is used for being connected with the second support 7, and the other section of the limiting plate is used for limiting the clamping position of the cylinder sleeve A.
Fig. 5 is a schematic diagram of magnetic induction lines of an iron core according to embodiment 1 of the present invention. Matching the outer circle of the cylinder sleeve A with the inner circle of the clamping chuck 4 until the shoulder of the cylinder sleeve A is contacted with the limiting plate 8; starting a power supply, and introducing direct current with the same size and the same direction into a lead on the electromagnet 62, so that the magnetic induction lines in the iron core are integrally distributed in a circumferential direction, electromagnetic attraction with the same size is generated on the end face of the iron core, and the inner ring of the uniform section of the clamping chuck 4 is driven to contract, so that circumferential clamping force which is uniformly distributed is applied to the outer circular surface of the cylinder sleeve A, and the clamping of the outer circular surface of the cylinder sleeve A is realized; and (5) turning off the power supply, and removing the cylinder sleeve A after the electromagnetic force disappears. In addition, the current magnitude on each electromagnet 62 is independently adjusted, so that fine adjustment of the clamping force can be realized, and the cylinder sleeve blanks with different surface roughness can be adapted.
Fig. 6 is a schematic diagram of magnetic induction lines of an iron core according to embodiment 2 of the present invention. Matching the inner hole of the cylinder sleeve A with the outer ring of the clamping chuck 4 until the shoulder of the cylinder sleeve A is contacted with the limiting plate 8; starting a power supply, supplying direct currents with equal magnitude and opposite directions to the leads on the adjacent electromagnets 62, wherein the current flow directions of each electromagnetic coil and the adjacent coil are opposite, and the end faces of the iron cores generate electromagnetic repulsion forces with equal magnitude at the moment to drive the outer rings of the uniform sections of the clamping chucks 4 to expand, so that circumferential clamping forces which are uniformly distributed are applied to the inner hole surface of the cylinder sleeve A, and the clamping of the inner hole surface of the cylinder sleeve A is realized; and (5) turning off the power supply, and removing the cylinder sleeve A after the electromagnetic force disappears.
The embodiments described above are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications to the embodiments of the present invention or equivalent substitutions of some features may be made without departing from the spirit of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.
Claims (7)
1. The utility model provides an electromagnetic clamp of centre gripping cylinder jacket which characterized by includes: the clamping device comprises a base (1), wherein two supports are fixedly connected to the upper surface of the base (1), threaded holes are formed in the end face and the upper surface of a first support (2) and used for installing an end cover (3) and a locking screw (5), the end cover (3) and the locking screw (5) are used for fixing one end of a clamping chuck (4), a packaging coil (6) is connected to the end face of the other end of the clamping chuck (4) and sleeved in a through hole of a second support (7), a limiting plate (8) is connected to the end face of the second support (7), and the limiting plate (8) is used for guaranteeing the consistency of the clamping position of a cylinder sleeve; the cylinder sleeve is inserted into the clamping chuck (4) or sleeved in the clamping chuck (4), and the head of the clamping chuck (4) is contracted or expanded by electromagnetic force generated by electrifying the packaging coil (6), so that the cylinder sleeve is clamped from the outside or is expanded from the inside, and the outer circle or the inner hole of the cylinder sleeve is clamped.
2. The electromagnetic clamp for clamping a cylinder liner according to claim 1, wherein: u-shaped holes are formed in the connecting positions of the base (1) and the first support (2) and the second support (7) and used for fine adjustment of the assembling position of the supports; and a trapezoidal groove (9) is formed in the circumferential surface of one side of the clamping chuck (4) and is used for being matched with the locking screw (5) to be fastened.
3. The electromagnetic clamp for clamping a cylinder liner according to claim 2, wherein: the clamping chuck (4) is provided with a plurality of grooves which are uniformly distributed in the circumferential direction, and the clamping chuck (4) is divided into a plurality of uniform sections for clamping the cylinder sleeve; the end face of the clamping chuck (4) is provided with a plurality of threaded holes for connecting the packaging coil (6).
4. The electromagnetic clamp for clamping a cylinder liner according to claim 3, wherein: the packaging coil (6) comprises a coil casing (61) and an electromagnet (62), wherein a lead is wound on the electromagnet (62), and the electromagnet (62) and the lead are packaged in the coil casing (61); the packaging coils (6) are uniformly distributed along the circumferential direction of the clamping chuck (4), and the number of the packaging coils is equal to that of the grooves on the clamping chuck (4).
5. The electromagnetic clamp for clamping a cylinder liner according to claim 4, wherein: and the electromagnets (62) are respectively provided with a lead for controlling the conduction and the disconnection of the electromagnets (62) and the current flow direction.
6. The electromagnetic clamp for clamping a cylinder liner according to claim 4, wherein: the cross section of an iron core of the electromagnet (62) is rectangular and is arc-shaped, the iron core is uniformly distributed along the circumferential direction, and the cross sections of the iron core are parallel to each other.
7. The electromagnetic clamp for clamping a cylinder liner according to claim 1, wherein: the limiting plate (8) is Z-shaped, one section of the limiting plate is used for being connected with the second support (7), and the other section of the limiting plate is used for limiting the clamping position of the cylinder sleeve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210063636 | 2022-01-20 | ||
| CN2022100636365 | 2022-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114310732A CN114310732A (en) | 2022-04-12 |
| CN114310732B true CN114310732B (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210173382.2A Active CN114310732B (en) | 2022-01-20 | 2022-02-24 | Electromagnetic clamp for clamping cylinder sleeve |
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| Country | Link |
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| CN (1) | CN114310732B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308209A (en) * | 2014-10-08 | 2015-01-28 | 南京航空航天大学 | Magneto-rheological flexible clamp system and clamping method |
| CN204800299U (en) * | 2015-04-15 | 2015-11-25 | 天津众拓创辉科技有限公司 | A automatic control anchor clamps for turning of gear outer peripheral face |
| CN107116241A (en) * | 2017-06-16 | 2017-09-01 | 河南中原吉凯恩气缸套有限公司 | Cylinder jacket scroll chuck fixture |
| CN206732175U (en) * | 2017-05-09 | 2017-12-12 | 江苏爱吉斯海珠机械有限公司 | Thin wall cylinder cover lathe finish fixture |
| CN212794023U (en) * | 2020-07-27 | 2021-03-26 | 贵州工程应用技术学院 | Special fixture for cylinder sleeve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009049569A1 (en) * | 2007-10-16 | 2009-04-23 | Röhm Gmbh | Method for chucking workpieces sensitive to deformation and chuck for carrying out said method |
-
2022
- 2022-02-24 CN CN202210173382.2A patent/CN114310732B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308209A (en) * | 2014-10-08 | 2015-01-28 | 南京航空航天大学 | Magneto-rheological flexible clamp system and clamping method |
| CN204800299U (en) * | 2015-04-15 | 2015-11-25 | 天津众拓创辉科技有限公司 | A automatic control anchor clamps for turning of gear outer peripheral face |
| CN206732175U (en) * | 2017-05-09 | 2017-12-12 | 江苏爱吉斯海珠机械有限公司 | Thin wall cylinder cover lathe finish fixture |
| CN107116241A (en) * | 2017-06-16 | 2017-09-01 | 河南中原吉凯恩气缸套有限公司 | Cylinder jacket scroll chuck fixture |
| CN212794023U (en) * | 2020-07-27 | 2021-03-26 | 贵州工程应用技术学院 | Special fixture for cylinder sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114310732A (en) | 2022-04-12 |
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