CN117920925A - Electromagnetic micro-forging device with stroke actively regulated - Google Patents
Electromagnetic micro-forging device with stroke actively regulated Download PDFInfo
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- CN117920925A CN117920925A CN202410074911.2A CN202410074911A CN117920925A CN 117920925 A CN117920925 A CN 117920925A CN 202410074911 A CN202410074911 A CN 202410074911A CN 117920925 A CN117920925 A CN 117920925A
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- 238000005242 forging Methods 0.000 title claims abstract description 87
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 230000004308 accommodation Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005728 strengthening Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
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Abstract
The invention provides an electromagnetic micro-forging device with actively-regulated stroke. Comprises an upper limit active adjusting structure and an electromagnetic micro-forging driving structure; the electromagnetic micro-forging driving structure comprises a first shell, a driving assembly, a middle connecting rod and a micro-forging head; the micro forging head is arranged at the bottom end of the middle connecting rod, and the driving assembly is used for driving the middle connecting rod to reciprocate up and down; the upper limit active adjusting structure is arranged above the electromagnetic micro-forging driving structure and used for adjusting the highest position of the reciprocating motion of the middle connecting rod. The upper limit active adjusting structure comprises an active adjusting structure driving piece, a transmission piece, a screw rod and a movable upper limit block; according to the invention, through the design of the upper limit active adjusting structure, the position of the movable upper limit block can be actively adjusted, so that the upper limit position of the middle connecting rod can be adjusted, the stroke of micro forging can be controlled, and the purpose of online regulation and control of the micro forging effect is achieved.
Description
Technical Field
The invention relates to the field of machining, in particular to an electromagnetic micro-forging device with actively-regulated stroke.
Background
Micro-forging (micro-forging) is a controllable and orderly surface strengthening process, an electromagnetic driving type micro-forging system is a micro-end device which is widely used at present, and in the electromagnetic micro-forging strengthening process, the micro-forging stroke is used as a key variable for controlling the impact force and the impact speed of a forging head and is a key factor for determining the micro-forging strengthening effect;
In particular, micro forging is an emerging mechanical surface modification process involving hammering a target area with a high-hardness hammer head oscillating at high frequency. The electromagnetic driving type micro forging is a widely applied micro forging device, the general structure of the device is shown in figure 1, the driving device consists of magnetic poles, electromagnetic coils and the like, the impact structure, namely the forging head and the impact rod, perform reciprocating linear motion between the limiting block and the surface of a workpiece under the excitation of an electromagnetic driving system, and after the material bears the continuous impact of protons, strong plastic deformation occurs, and the surface integrity of the material can be improved through certain plastic deformation. The control system can be used for adjusting the impact frequency and the impact energy, and the cooling system plays roles of dissipating heat and guaranteeing the stable operation of the system.
As shown in fig. 1, the micro-forging device is generally arranged at the tail end of a machine tool or a mechanical arm through a mechanical interface, technological parameters such as stroke, step distance, row distance, impact angle and the like are adjusted, and a constant distance is kept between a micro-forging head and the surface of a workpiece all the time in the machining process, so that the workpiece material is ensured to be impacted accurately in position and uniformly in strength. The surface finishing or strengthening of the workpieces of different metal materials is realized by precise high-frequency impact.
For an electromagnetic driving type micro-forging device, the stroke size of a micro-forging head directly determines the strengthening effect of micro-forging, at present, the stroke of a micro-forging process is generally set and completed before machining begins, a machine tool or a mechanical arm carries micro-forging equipment according to a preset stroke path to carry out micro-forging machining, the preset stroke cannot be changed in the machining process, and when a part with complex surface fluctuation is encountered, the micro-forging path is difficult to preset, so that the strengthening effect is poor and even the micro-forging process cannot be completed.
Most of electromagnetic driving type micro-forging devices described in the prior publications are not provided with an active adjusting device for micro-forging stroke, so that the electromagnetic driving type micro-forging device does not have an active adjusting function for stroke, cannot change a preset stroke in the machining process, and cannot complete self-adaptive machining of the micro-forging process. Thus greatly limiting the application range and strengthening effect of the electromagnetic micro-forging system.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide an electromagnetic micro-forging device with actively-regulated stroke.
The invention provides an electromagnetic micro-forging device with actively-regulated stroke, which comprises an upper limit active regulation structure and an electromagnetic micro-forging driving structure;
The electromagnetic micro-forging driving structure comprises a first shell, a driving assembly, a middle connecting rod and a micro-forging head; an accommodating space is formed in the first shell;
The driving assembly is arranged in the accommodating space, one end of the middle connecting rod is positioned in the accommodating space, and the other end of the middle connecting rod extends out of the bottom of the first shell;
The micro forging head is arranged at the bottom end of the middle connecting rod, and the driving assembly is used for driving the middle connecting rod to reciprocate up and down;
The upper limit active adjusting structure is arranged above the electromagnetic micro-forging driving structure and used for adjusting the highest position of the reciprocating motion of the middle connecting rod.
Preferably, the upper limit active adjusting structure comprises an active adjusting structure driving piece, a transmission piece, a screw rod and a movable upper limit block;
The driving part of the active adjusting structure is connected with the screw rod through a transmission part, the lower part of the screw rod is connected with the movable upper limiting block through a thread structure, and the movable upper limiting block can move up and down along with the rotary motion of the screw rod;
when the middle connecting rod moves upwards to the top of the middle connecting rod and the bottom of the movable upper limiting block are propped against each other, the middle connecting rod reaches the upper limit position.
Preferably, the lower part of the screw rod is matched with the internal thread of the movable upper limiting block through the external thread.
Preferably, the device further comprises a support link housing and an intermediate support housing, wherein the support link housing, the intermediate support housing and the first housing are sequentially arranged from top to bottom, the driving part of the active adjusting structure is arranged in the supporting link shell, the main body part of the movable upper limiting block is positioned in the middle supporting shell, and the bottom of the movable upper limiting block extends into the accommodating space;
Preferably, the upper limit active adjusting structure further comprises a guide shaft and a first linear bearing,
The top end and the bottom end of the guide shaft are respectively fixedly connected with the middle support shell and the first shell;
The two sides of the movable upper limiting block are provided with first linear bearings, and the movable upper limiting block is matched with the guide shaft through the first linear bearings.
Preferably, the driving part of the active adjusting structure is a driving motor, and the transmission part is a coupler.
Preferably, an air cooling channel is formed in the first shell;
the accommodating space is communicated with the outside through an air cooling channel.
Preferably, the electromagnetic micro-forging driving structure further comprises a second linear bearing; and a second linear bearing is arranged between the first shell and the middle connecting rod.
Preferably, the driving assembly comprises a coil support, a permanent magnet and a coil;
The permanent magnet is fixed in the accommodating space, the coil is wound on the coil support, and the coil support is fixedly connected with the middle connecting rod; the top end of the middle connecting rod is higher than the top end of the coil support;
under the drive of electromagnetic force, the coil can drive the coil support to move up and down so as to realize the up and down movement of the middle connecting rod.
Preferably, the first shell is also provided with a circuit interface;
the coil is connected with an external power supply or a circuit through a circuit interface.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the design of the upper limit active adjusting structure, the position of the movable upper limit block can be actively adjusted, so that the upper limit position of the middle connecting rod can be adjusted, the stroke of micro forging can be controlled, and the purpose of online regulation and control of the micro forging effect is achieved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of an electromagnetically driven micro-forging apparatus according to the prior art;
FIG. 2 is a schematic diagram of the structure of the present invention;
the figure shows:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The invention provides an electromagnetic micro-forging device with actively-regulated stroke, which is shown in fig. 2, and comprises an upper limit active regulation structure 100 and an electromagnetic micro-forging driving structure 200; the electromagnetic micro-forging driving structure 200 comprises a first shell 6, a driving assembly 300, an intermediate connecting rod 16 and a micro-forging head 17; the first housing 6 is internally provided with a containing space 61, the driving assembly 300 is installed in the containing space 61, one end of the intermediate connecting rod 16 is positioned in the containing space 61, and the other end extends out of the bottom of the first housing 6; the micro forging head 17 is installed at the bottom end of the middle connecting rod 16, and the driving assembly 300 is used for driving the middle connecting rod 16 to reciprocate up and down; the upper limit active adjusting structure 100 is installed above the electromagnetic micro-forging driving structure 200, and is used for adjusting the highest position of the reciprocating motion of the intermediate connecting rod 16.
The upper limit active adjusting structure 100 comprises an active adjusting structure driving piece 2, a transmission piece 3, a screw rod 9 and a movable upper limit block 11; the driving part 2 is connected with the screw rod 9 through the transmission part 3, the transmission part 3 transmits the rotation motion of the driving part 2to the screw rod 9 to drive the screw rod 9 to rotate, the lower part of the screw rod 9 is connected with the movable upper limiting block 11 through a thread structure, and specifically, the lower part of the screw rod 9 is matched with the internal thread of the movable upper limiting block 11 through external threads. Due to the threaded fit, the rotary motion of the screw rod 9 can be converted into the axial linear motion of the movable upper limiting block 11, namely the movable upper limiting block 11 can move up and down along with the rotary motion of the screw rod 9 so as to adjust the specific position of the movable upper limiting block 11; when the middle connecting rod 16 moves upwards to the top of the middle connecting rod and the bottom of the movable upper limiting block 11 are propped against each other, the middle connecting rod 16 reaches an upper limit position.
The electromagnetic micro-forging device with the stroke actively regulated further comprises a support link shell 1 and a middle support shell 4, wherein the support link shell 1, the middle support shell 4 and the first shell 6 are sequentially arranged from top to bottom, an active regulation structure driving piece 2 is arranged in the support link shell 1, a main body part of a movable upper limiting block 11 is positioned in the middle support shell 4, and the bottom of the movable upper limiting block 11 extends into an accommodating space 61;
The upper limit active adjusting structure 100 further comprises a guide shaft 8 and a first linear bearing 10, wherein the top end and the bottom end of the guide shaft 8 are fixedly connected with the middle supporting shell 4 and the first shell 6 respectively. The two sides of the movable upper limiting block 11 are provided with first linear bearings 10, and the movable upper limiting block 11 is matched with the guide shaft 8 through the first linear bearings 10. The guide shaft 8 and the linear bearing on the upper limiting block form a linear motion pair, so that the rotation of the upper limiting block is restrained, and the axial linear motion of the movable upper limiting block is ensured.
The electromagnetic micro-forging driving structure 200 further comprises a second linear bearing 7; a second linear bearing 7 is installed between the first housing 6 and the intermediate connecting rod 16.
The drive assembly 300 includes a coil support 12, a permanent magnet 13, and a coil 14; the permanent magnet 13 is fixed in the accommodation space 61, forming a fixed magnetic field in the electromagnetic micro-forging system. The coil 14 is wound on the coil support 12, and the coil support 12 is fixedly connected with the middle connecting rod 16; the top end height of the intermediate link 16 is higher than the top end height of the coil support 12; the coil 14 can drive the coil support 12 to move up and down under the driving of electromagnetic force so as to realize the up and down movement of the intermediate link 16. Specifically, the coil 14, the coil support 12, the intermediate connecting rod 16 and the micro forging head 17 together form a rotor of the micro forging actuator, when current is introduced into the coil, due to the electromagnetic interaction principle, an electromagnetic field is generated, corresponding electromagnetic force is generated under a fixed magnetic field generated by the permanent magnet 13 to drive the rotor to move, when alternating current with a certain frequency is introduced into the coil, alternating electromagnetic force with a corresponding frequency is generated to drive the forging head system to generate periodic movement, the rotor receives corresponding reaction force when impacting downwards a workpiece and the upper end of the rotor impacts an upper limit block, dynamic balance is formed between the alternating electromagnetic force and the reaction force, and the micro forging head realizes reciprocating mechanical impact movement to continuously impact the surface of a part so as to realize mechanical strengthening effect.
The first shell 6 is provided with an air cooling channel 5; the air cooling channel 5, the accommodating space 61 is communicated with the outside through the air cooling channel 5, and when the coil 14 generates heat, cold air can be introduced into the coil 14 through the air cooling channel 5 to realize the cooling of the coil 14. The first shell 6 is also provided with a circuit interface 15; the coil 14 is connected to an external power source or line via a circuit interface 15.
In a preferred embodiment, the active adjustment structure drive 2 is a drive motor. The transmission part 3 is a coupler, and after receiving an input signal, the driving motor drives the screw rod 9 to rotate clockwise or anticlockwise through the transmission part 3, and the movable upper limiting block 11 can be driven to perform free, accurate and controllable axial up-down linear motion through threaded fit of the screw rod 9 and the upper limiting block. In another preferred embodiment, besides the motor driving the screw rod to drive the upper limiting block to move, the upper limiting block can be controlled to move through other linear movement mechanisms such as a gear rack and a crank slider.
The invention can achieve the purpose of adjusting the stroke of micro forging by actively adjusting the position of the movable upper limiting block 11, thereby realizing the on-line micro forging adjusting and controlling effect. The invention designs an electromagnetic micro-forging device with actively adjustable stroke, wherein the upper limit of an intermediate connecting rod 16 can be actively adjusted, so that the micro-forging stroke can be actively regulated and controlled. By means of the device, micro-forging strengthening of the complex undulating surface can be effectively completed, in addition, the device can be combined with a micro-forging process sensing system, the moving stroke of the upper limiting block is determined according to stroke and impact force information obtained by the sensing system, the micro-forging stroke is adjusted on line, the micro-forging effect is adjusted, closed loop feedback is formed, and self-adaptive machining of the micro-forging process can be achieved. The electromagnetic micro-forging device with the whole stroke actively regulated is compact in structure and convenient to integrate with a machine tool or a mechanical arm and the like.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. An electromagnetic micro-forging device with actively-regulated stroke is characterized by comprising an upper limit active regulation structure (100) and an electromagnetic micro-forging driving structure (200);
The electromagnetic micro-forging driving structure (200) comprises a first shell (6), a driving assembly (300), an intermediate connecting rod (16) and a micro-forging head (17); an accommodating space (61) is arranged in the first shell (6);
the driving assembly (300) is arranged in the accommodating space (61), one end of the intermediate connecting rod (16) is positioned in the accommodating space (61), and the other end extends out of the bottom of the first shell (6);
the micro forging head (17) is arranged at the bottom end of the middle connecting rod (16), and the driving assembly (300) is used for driving the middle connecting rod (16) to reciprocate up and down;
the upper limit active adjusting structure (100) is arranged above the electromagnetic micro-forging driving structure (200) and is used for adjusting the highest position of the reciprocating motion of the middle connecting rod (16).
2. The electromagnetic micro-forging apparatus as recited in claim 1, wherein the upper limit active adjustment structure (100) comprises an active adjustment structure driving member (2), a transmission member (3), a screw (9) and a movable upper limit block (11);
The driving structure adjusting driving piece (2) is connected with the screw rod (9) through the transmission piece (3), the lower part of the screw rod (9) is connected with the movable upper limiting block (11) through a threaded structure, and the movable upper limiting block (11) can move up and down along with the rotary motion of the screw rod (9);
when the middle connecting rod (16) moves upwards to the top of the middle connecting rod and the bottom of the movable upper limiting block (11) are propped against each other, the middle connecting rod (16) reaches an upper limit position.
3. Electromagnetic micro-forging apparatus with active adjustment of stroke according to claim 2, characterized in that the lower part of the screw rod (9) is matched with the internal thread of the movable upper limit block (11) through the external thread.
4. The electromagnetic micro-forging apparatus with active stroke adjustment according to claim 2, further comprising a support link housing (1) and an intermediate support housing (4), wherein the support link housing (1), the intermediate support housing (4) and the first housing (6) are sequentially arranged from top to bottom, and the active adjustment structure driving member (2) is installed in the support link housing (1), the main body portion of the movable upper stopper (11) is located in the intermediate support housing (4), and the bottom portion of the movable upper stopper (11) extends into the accommodating space (61).
5. The electromagnetic micro-forging apparatus for actively adjusting a stroke according to claim 4, wherein the upper limit active adjusting structure (100) further comprises a guide shaft (8) and a first linear bearing (10),
The top end and the bottom end of the guide shaft (8) are respectively fixedly connected with the middle support shell (4) and the first shell (6);
The two sides of the movable upper limiting block (11) are provided with first linear bearings (10), and the movable upper limiting block (11) is matched with the guide shaft (8) through the first linear bearings (10).
6. The electromagnetic micro-forging apparatus as recited in claim 2, wherein the driving member (2) of the driving structure is a driving motor, and the transmission member (3) is a coupling.
7. The electromagnetic micro-forging device with actively regulated stroke according to claim 1, wherein the first housing (6) is provided with an air cooling channel (5);
the accommodation space (61) communicates with the outside through the air cooling passage (5).
8. The stroke actively regulated electromagnetic micro-forging apparatus as recited in claim 5, wherein said electromagnetic micro-forging driving structure (200) further comprises a second linear bearing (7); a second linear bearing (7) is arranged between the first shell (6) and the middle connecting rod (16).
9. The stroke actively regulated electromagnetic micro-forging apparatus according to claim 8, wherein the driving assembly (300) comprises a coil support (12), a permanent magnet (13) and a coil (14);
the permanent magnet (13) is fixed in the accommodating space (61), the coil (14) is wound on the coil support (12), and the coil support (12) is fixedly connected with the middle connecting rod (16); the top end height of the intermediate connecting rod (16) is higher than the top end height of the coil support (12);
Under the drive of electromagnetic force, the coil (14) can drive the coil support (12) to move up and down so as to realize the up and down movement of the intermediate connecting rod (16).
10. The electromagnetic micro-forging apparatus with actively regulated stroke according to claim 9, wherein the first housing (6) is further provided with a circuit interface (15);
The coil (14) is connected with an external power supply or a circuit through a circuit interface (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410074911.2A CN117920925A (en) | 2024-01-18 | 2024-01-18 | Electromagnetic micro-forging device with stroke actively regulated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410074911.2A CN117920925A (en) | 2024-01-18 | 2024-01-18 | Electromagnetic micro-forging device with stroke actively regulated |
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| Publication Number | Publication Date |
|---|---|
| CN117920925A true CN117920925A (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410074911.2A Pending CN117920925A (en) | 2024-01-18 | 2024-01-18 | Electromagnetic micro-forging device with stroke actively regulated |
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| Country | Link |
|---|---|
| CN (1) | CN117920925A (en) |
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- 2024-01-18 CN CN202410074911.2A patent/CN117920925A/en active Pending
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