A magnetostrictive micro-displacement platform
By designing a fixing mechanism on the magnetostrictive micro-displacement platform and utilizing the magnetic attraction of the magnetostrictive rod, the problem of inaccurate displacement of the platform and inaccurate displacement after long-term use is solved, and the precise front and back movement and long-term stability of the platform are achieved.
Patent Information
- Application Number
- CN202011452096.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-10
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2040-12-10
AI Technical Summary
The existing magnetostrictive micro-displacement platform cannot accurately drag the mobile platform to move backwards, and after long-term use, the mobile platform cannot be stable and precisely displaced for a long time due to the reduction of friction coefficient.
A magnetostrictive microdisplacement platform consisting of two front-rear symmetric sliders and magnetostrictive rods is designed. By setting a fixing mechanism at the lower end of the slider, the magnetic attraction of the magnetostrictive rod and coil and the spring force are used to achieve the front and rear fixation and unfixation of the slider, thereby controlling the precise front and rear movement of the moving platform.
The precise forward and backward movement of the mobile platform is achieved, avoiding the problem of inaccurate displacement caused by the reduction of friction coefficient, and ensuring that the platform can still move accurately after long-term use.
Smart Images
Figure CN112564543B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a magnetostrictive micro-displacement platform. Background Art
[0002] A magnetostrictive micro-displacement platform disclosed in the patent application No. CN201922421086.6 provides a magnetostrictive micro-displacement platform, including a moving platform, a housing and an inertial impact motor housing. The housing internally and slidably provides the inertial impact motor housing. The moving platform is connected to the inertial impact motor housing and located above the housing. A coil bobbin for installing a coil is provided at the closed end of the inner cavity of the inertial impact motor housing. A magnetostrictive rod is slidably and fittingly installed at the center of the coil bobbin. One end of the magnetostrictive rod abuts against the inner bottom wall of the inertial impact motor housing, and the other end abuts against a push rod. A pre-tightening mechanism is constituted by a pre-tightening nut cooperating with a pre-tightening thread and a pre-tightening spring on both sides of the push rod. A linear bearing is provided inside the pre-tightening nut. The other end of the push rod passes through the linear bearing and is connected with a mass block. A pressing portion is provided at one end of the push rod close to the magnetostrictive rod. A pre-tightening spring is provided between the linear bearing and the pressing portion. This invention can accurately drive the moving platform to move forward, but it cannot accurately drive the moving platform to move backward, which cannot meet the usage requirements. In addition, the moving mode of the moving platform of this invention is related to the friction coefficient between the inertial impact motor housing and the housing. When the inertial impact motor housing and the housing rub against each other for a long time, the contact surface between them will become relatively smooth, reducing the friction coefficient between them. This will cause the inertial impact motor housing to not move stably for a long time, and further cause the moving platform after long-term use to not accurately displace. In view of the above problems, we propose a magnetostrictive micro-displacement platform. Summary of the Invention
[0003] The purpose of the present invention is to provide a magnetostrictive micro-displacement platform for solving the problems existing in the background art.
[0004] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:
[0005] A magnetostrictive micro-displacement platform includes a moving platform and a housing. Inside the housing, two symmetric sliders are slidably connected in the front and back. On the opposite sides of the two sliders, magnetostrictive rods are provided. A connecting block is fixedly connected between the two magnetostrictive rods. The moving platform is arranged at the upper end of the connecting block. First coils are sleeved outside the two magnetostrictive rods. Fixed mechanisms are provided at the lower ends of the two sliders. The fixed mechanism includes an iron cylinder arranged at the lower end of the slider. A rectangular groove is provided at the lower end of the iron cylinder. A circular groove is provided at the upper end of the rectangular groove. A spring and a limiting plate are sequentially assembled in the circular groove from top to bottom. A rectangular column extending out of the rectangular groove is provided at the lower end of the limiting plate. An armature plate is provided at the lower end of the rectangular column. A first sawtooth is provided at the lower end of the armature plate. A second coil is sleeved outside the iron cylinder. A strip-shaped plate matched with the armature plate is provided at the inner bottom of the housing. A second sawtooth matched with the first sawtooth is provided at the upper end of the strip-shaped plate.
[0006] Adopting the technical solution of the present invention, in the initial state, the spring in the iron cylinder will push the limiting plate, so that the rectangular column drives the first sawtooth on the armature plate to engage with the second sawtooth on the strip-shaped plate, so that the fixed mechanism can fix the slider in the housing and prevent it from moving back and forth; when the first coil is energized, a magnetic field can be generated, and the magnetostrictive rod will immediately elongate. When the first coil is de-energized, the magnetic field disappears, and the magnetostrictive rod immediately returns to its original length. When the second coil is energized, a magnetic field can be generated, and the iron cylinder immediately generates a magnetic attraction force. This magnetic attraction force can overcome the elastic force of the spring to suck the armature plate upward, compress the spring, and at the same time disengage the first sawtooth from the second sawtooth. At this time, the fixing structure releases the fixation of the slider, and the slider on the fixing structure can move back and forth. When the second coil is de-energized, the magnetic field disappears, and the spring rebounds to drive the armature plate to move downward, so that the first sawtooth and the second sawtooth are re-engaged, and the fixing structure fixes the slider again;
[0007] When it is necessary to control the moving platform to move forward, first energize the second coil on the front side to release the fixation of the front slider. While keeping the second coil on the front side energized, energize the two first coils at the same time. The two magnetostrictive rods will elongate together. Since the rear slider is fixed by the rear fixing mechanism, the two magnetostrictive rods will elongate forward. When the rear magnetostrictive rod elongates forward, it will drive the moving platform forward through the connecting block. Then, de-energize the second coil on the front side. At this time, the front fixing mechanism fixes the front slider. Then, energize the second coil on the rear side to release the fixation of the rear slider by the rear fixing mechanism. While keeping the second coil on the rear side energized, de-energize the two first coils at the same time. The two magnetostrictive rods will shorten to their original lengths together. Since the front slider is fixed by the front fixing mechanism, the two magnetostrictive rods will shorten forward. When the front magnetostrictive rod shortens forward, it will drive the moving platform forward through the connecting block. In this way, the moving platform is controlled to move forward. Finally, de-energize the second coil on the rear side, and the moving platform is fixed;
[0008] When it is necessary to control the mobile platform to move backward, first energize the second coil at the rear side to release the fixation of the slider at the rear side. While keeping the second coil at the rear side energized, energize the two first coils. The two magnetostrictive rods will elongate together. Since the slider at the front side is fixed by the fixing mechanism at the front side, the two magnetostrictive rods will elongate backward. When the magnetostrictive rod at the front side elongates backward, it will drive the mobile platform to move backward through the connecting block. Then, cut off the power supply of the second coil at the rear side. At this time, the fixing mechanism at the rear side fixes the slider at the rear side. Then, energize the second coil at the front side to release the fixation of the fixing mechanism at the front side on the slider at the front side. While keeping the second coil at the front side energized, cut off the power supply of the two first coils. The two magnetostrictive rods will shorten to their original lengths together. Since the slider at the rear side is fixed by the fixing mechanism at the rear side, the two magnetostrictive rods will shorten backward. When the magnetostrictive rod at the rear side shortens backward, it will drive the mobile platform to move backward through the connecting block. In this way, the mobile platform is controlled to move backward. Finally, cut off the power supply of the second coil at the front side, and the mobile platform is fixed;
[0009] To sum up, the magnetostrictive micro-displacement platform can accurately control the forward and backward movement of the mobile platform to meet the usage requirements. Since the forward and backward movement of the mobile platform has nothing to do with the friction coefficient, it will not be affected by the friction coefficient. In this way, after long-term use of the magnetostrictive micro-displacement platform, the mobile platform can still accurately displace.
[0010] Further defined, the first coil includes a first positive connection end and a first negative connection end, the second coil includes a second positive connection end and a second negative connection end, both the front and rear sides of the lower part of the connection block are fixedly connected with support tubes, the lower ends of both support tubes are fixedly connected with first elastic thimbles, the first positive connection ends of the two first coils respectively penetrate into the two support tubes and are electrically connected with the first elastic thimbles, a strip-shaped groove is provided at the upper end of the strip-shaped plate, and a first conductive strip matching the first elastic thimble is provided in the strip-shaped groove. Vertical plates are provided on the left side of the rear slider and the right side of the front slider. Second elastic thimbles and third elastic thimbles are arranged at intervals from top to bottom at the end of the vertical plate away from the slider. The second positive connection end of the rear second coil is electrically connected with the third elastic thimble at the rear, the second positive connection end of the front second coil is electrically connected with the third elastic thimble at the front, the second negative connection end of the rear second coil and the first negative connection end of the rear first coil are both electrically connected with the second elastic thimble at the rear, the second negative connection end of the front second coil and the first negative connection end of the front first coil are both electrically connected with the second elastic thimble at the front. A second conductive strip matching the third elastic thimble at the front is provided at the right end of the inner side of the housing, a third conductive strip matching the third elastic thimble at the rear is provided at the left end of the inner side of the housing, and fourth conductive strips matching the two second elastic thimbles are provided at the left and right ends of the inner side of the housing. With such a structure, the setting of the first elastic thimble can satisfy the front and rear sliding of the first coil while satisfying the electrical connection between the first positive connection end and the first conductive strip. The setting of the second elastic thimble can satisfy the front and rear sliding of the second coil and the first coil while satisfying the common electrical connection between the second negative connection end of the second coil and the first negative connection end of the first coil and the fourth conductive strip. The setting of the third elastic thimble at the front can satisfy the front and rear sliding of the second coil at the front while satisfying the electrical connection between the second positive connection end at the front and the second conductive strip. The setting of the third elastic thimble at the rear can satisfy the front and rear sliding of the second coil at the rear while satisfying the electrical connection between the second positive connection end at the rear and the third conductive strip. The support tube is used to support the first elastic thimble, the vertical plate is used to support the second elastic thimble and the third elastic thimble, and the fourth conductive strip is used to connect the negative pole of the power supply. When the first conductive strip is connected to the positive pole of the power supply, the two first coils can be powered on and work. When the second conductive strip is connected to the positive pole of the power supply, the second coil at the front can be powered on and work. When the third conductive strip is connected to the positive pole of the power supply, the second coil at the rear can be powered on and work.
[0011] Further defined, the first conductive strip, the second conductive strip, the third conductive strip and the fourth conductive strip all extend out from the front end of the housing. With such a structure, the first conductive strip, the second conductive strip, the third conductive strip and the fourth conductive strip can be connected to an external power supply.
[0012] Further defined, connection holes are provided at one ends of the first conductive strip, the second conductive strip, the third conductive strip and the fourth conductive strip extending out of the housing. Such a structure facilitates the connection of the first conductive strip, the second conductive strip, the third conductive strip and the fourth conductive strip to an external power source.
[0013] Further defined, the housing includes a shell body, and a cover plate is detachably and fixedly connected to the front end of the shell body. Such a structure facilitates the assembly of various components into the housing and also facilitates the maintenance of the components inside the housing.
[0014] Further defined, the shell body and the cover plate are fixedly connected by bolts. Such a structure enables the detachable and fixed connection between the shell body and the cover plate.
[0015] Further defined, slide rails matching the sliders are provided at both the left and right ends inside the housing. Such a structure enables the sliders to be slidably connected inside the housing.
[0016] The present invention has the following advantages compared with the prior art:
[0017] 1. The magnetostrictive micro-displacement platform can accurately control the forward and backward movement of the moving platform to meet the usage requirements;
[0018] 2. Since the forward and backward movement of the moving platform is independent of the friction coefficient, it will not be affected by the friction coefficient. Therefore, after long-term use of the magnetostrictive micro-displacement platform, the moving platform can still be accurately displaced;
[0019] 3. The magnetostrictive micro-displacement platform is convenient for disassembly, installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention can be further illustrated by the non-limiting embodiments given in the drawings;
[0021] Figure 1 is a schematic structural diagram of an embodiment of a magnetostrictive micro-displacement platform of the present invention;
[0022] Figure 2 is a schematic cross-sectional structure diagram of an embodiment of a magnetostrictive micro-displacement platform of the present invention Figure 1 ;
[0023] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of a magnetostrictive micro-displacement platform of the present invention Figure 2 ;
[0024] Figure 4 is a schematic partial structural diagram of an embodiment of a magnetostrictive micro-displacement platform of the present invention;
[0025] Figure 5 is a schematic connection diagram of the first coil and the second coil of an embodiment of a magnetostrictive micro-displacement platform of the present invention;
[0026] Figure 6 Schematic diagram of the armature plate structure of an embodiment of the magnetostrictive micro-displacement platform of the present invention;
[0027] Figure 7 Schematic diagram of the circuit connection of an embodiment of the magnetostrictive micro-displacement platform of the present invention;
[0028] The descriptions of the main component symbols are as follows:
[0029] Moving platform 1, housing 11, slider 2, magnetostrictive rod 21, connecting block 22, first coil 23, iron cylinder 3, rectangular groove 31, circular groove 32, spring 33, limiting plate 34, rectangular column 35, armature plate 36, first sawtooth 37, second coil 38, strip plate 4, second sawtooth 41, first positive connection end 5, first negative connection end 51, second positive connection end 52, second negative connection end 53, support tube 54, first elastic ejector pin 55, first conductive strip 56, vertical plate 57, second elastic ejector pin 58, third elastic ejector pin 59, second conductive strip 6, third conductive strip 61, fourth conductive strip 62, connection hole 63, housing 7, cover plate 71 of 7, slide rail 72. Specific embodiments
[0030] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0031] As Figures 1-7 shown, a magnetostrictive micro-displacement platform of the present invention includes a moving platform 1 and a housing 11. Two symmetrically arranged sliders 2 are slidably connected inside the housing 11. Magnetostrictive rods 21 are provided on the opposite sides of the two sliders 2. A connecting block 22 is fixedly connected between the two magnetostrictive rods 21. The moving platform 1 is arranged at the upper end of the connecting block 22. First coils 23 are sleeved outside the two magnetostrictive rods 21. Fixing mechanisms are provided at the lower ends of the two sliders 2. The fixing mechanism includes an iron cylinder 3 provided at the lower end of the slider 2. A rectangular groove 31 is provided at the lower end of the iron cylinder 3. A circular groove 32 is provided at the upper end of the rectangular groove 31. A spring 33 and a limiting plate 34 are sequentially assembled in the circular groove 32 from top to bottom. A rectangular column 35 extending out of the rectangular groove 31 is provided at the lower end of the limiting plate 34. An armature plate 36 is provided at the lower end of the rectangular column 35. A first sawtooth 37 is provided at the lower end of the armature plate 36. A second coil 38 is sleeved outside the iron cylinder 3. A strip plate 4 matching the armature plate 36 is provided at the inner bottom of the housing 11. A second sawtooth 41 matching the first sawtooth 37 is provided at the upper end of the strip plate 4.
[0032] Adopting the technical solution of the present invention, in the initial state, the spring 33 inside the iron cylinder 3 will push the limiting plate 34, so that the rectangular column 35 drives the first saw teeth 37 on the armature plate 36 to engage with the second saw teeth 41 on the strip plate 4, so that the fixing mechanism can fix the slider 2 in the outer shell 11 and prevent it from moving back and forth; when the first coil 23 is energized, a magnetic field can be generated, and the magnetostrictive rod 21 will immediately elongate. When the first coil 23 is de-energized, the magnetic field disappears, and the magnetostrictive rod 21 will immediately return to its original length. When the second coil 38 is energized, a magnetic field can be generated, and the iron cylinder 3 will immediately generate a magnetic attraction force. This magnetic attraction force can overcome the elastic force of the spring 33 to suck up the armature plate 36 upward, compress the spring 33, and at the same time disengage the first saw teeth 37 from the second saw teeth 41. At this time, the fixing structure releases the fixation of the slider 2, and the slider 2 on the fixing structure can move back and forth. When the second coil 38 is de-energized, the magnetic field disappears, and the spring 33 rebounds to drive the armature plate 36 to move downward, so that the first saw teeth 37 and the second saw teeth 41 are re-engaged, and the fixing structure fixes the slider 2 again;
[0033] When it is necessary to control the moving platform 1 to move forward, first energize the second coil 38 on the front side to release the fixation of the slider 2 on the front side. While keeping the second coil 38 on the front side energized, energize the two first coils 23 at the same time. The two magnetostrictive rods 21 will elongate together. Since the slider 2 on the rear side is fixed by the fixing mechanism on the rear side, the two magnetostrictive rods 21 will elongate forward. When the magnetostrictive rod 21 on the rear side elongates forward, it will drive the moving platform 1 to move forward through the connecting block 22. Then, de-energize the second coil 38 on the front side. At this time, the fixing mechanism on the front side fixes the slider 2 on the front side. Then, energize the second coil 38 on the rear side to release the fixation of the fixing mechanism on the rear side on the slider 2 on the rear side. While keeping the second coil 38 on the rear side energized, de-energize the two first coils 23 at the same time. The two magnetostrictive rods 21 will shorten to their original lengths together. Since the slider 2 on the front side is fixed by the fixing mechanism on the front side, the two magnetostrictive rods 21 will shorten forward. When the magnetostrictive rod 21 on the front side shortens forward, it will drive the moving platform 1 to move forward through the connecting block 22. In this way, the moving platform 1 is controlled to move forward. Finally, de-energize the second coil 38 on the rear side, and the moving platform 1 is thus fixed;
[0034] When it is necessary to control the rearward movement of the mobile platform 1, first energize the second coil 38 at the rear side to release the fixation of the slider 2 at the rear side. While keeping the second coil 38 at the rear side energized, energize the two first coils 23. The two magnetostrictive rods 21 will elongate together. Since the slider 2 at the front side is fixed by the front fixing mechanism, the two magnetostrictive rods 21 will elongate rearward. When the front magnetostrictive rod 21 elongates rearward, it will drive the mobile platform 1 to move rearward through the connecting block 22. Then, cut off the power supply to the second coil 38 at the rear side. At this time, the rear fixing mechanism fixes the slider 2 at the rear side. Then, energize the second coil 38 at the front side to release the fixation of the front fixing mechanism on the slider 2 at the front side. While keeping the second coil 38 at the front side energized, cut off the power supply to the two first coils 23. The two magnetostrictive rods 21 will shorten to their original lengths together. Since the slider 2 at the rear side is fixed by the rear fixing mechanism, the two magnetostrictive rods 21 will shorten rearward. When the rear magnetostrictive rod 21 shortens rearward, it will drive the mobile platform 1 to move rearward through the connecting block 22. In this way, the rearward movement of the mobile platform 1 is controlled. Finally, cut off the power supply to the second coil 38 at the front side, and the mobile platform 1 is thus fixed;
[0035] In summary, the magnetostrictive micro-displacement platform can accurately control the forward and backward movement of the mobile platform 1 to meet the usage requirements. Since the forward and backward movement of the mobile platform 1 is independent of the friction coefficient, it will not be affected by the friction coefficient. Therefore, after long-term use of the magnetostrictive micro-displacement platform, the mobile platform 1 can still accurately displace.
[0036] Preferably, the first coil 23 includes a first positive connection end 5 and a first negative connection end 51, the second coil 38 includes a second positive connection end 52 and a second negative connection end 53. Support tubes 54 are fixedly connected to the front and rear sides of the lower part of the connection block 22. First elastic ejector pins 55 are fixedly connected to the lower ends of the two support tubes 54. The first positive connection ends 5 of the two first coils 23 respectively penetrate into the two support tubes 54 and are electrically connected to the first elastic ejector pins 55. A strip-shaped groove is provided at the upper end of the strip-shaped plate 4, and a first conductive strip 56 matching the first elastic ejector pin 55 is provided in the strip-shaped groove. Vertical plates 57 are provided on the left side of the rear slider 2 and the right side of the front slider 2. Second elastic ejector pins 58 and third elastic ejector pins 59 are arranged at intervals from top to bottom at one end of the vertical plate 57 away from the slider 2. The second positive connection end 52 of the rear second coil 38 is electrically connected to the third elastic ejector pin 59 at the rear side, and the second positive connection end 52 of the front second coil 38 is electrically connected to the third elastic ejector pin 59 at the front side. The second negative connection end 53 of the rear second coil 38 and the first negative connection end 51 of the rear first coil 23 are both electrically connected to the second elastic ejector pin 58 at the rear side, and the second negative connection end 53 of the front second coil 38 and the first negative connection end 51 of the front first coil 23 are both electrically connected to the second elastic ejector pin 58 at the front side. A second conductive strip 6 matching the third elastic ejector pin 59 at the front side is provided at the right end inside the outer shell 11, a third conductive strip 61 matching the third elastic ejector pin 59 at the rear side is provided at the left end inside the outer shell 11, and fourth conductive strips 62 matching the two second elastic ejector pins 58 are provided at the left and right ends inside the outer shell 11. With such a structure, the setting of the first elastic ejector pin 55 can satisfy the front and rear sliding of the first coil 23 while satisfying the electrical connection between the first positive connection end 5 and the first conductive strip 56. The setting of the second elastic ejector pin 58 can satisfy the front and rear sliding of the second coil 38 and the first coil 23 while satisfying the common electrical connection between the second negative connection end 53 of the second coil 38 and the first negative connection end 51 of the first coil 23 and the fourth conductive strip 62. The setting of the third elastic ejector pin 59 at the front side can satisfy the front and rear sliding of the second coil 38 at the front side while satisfying the electrical connection between the second positive connection end 52 at the front side and the second conductive strip 6. The setting of the third elastic ejector pin 59 at the rear side can satisfy the front and rear sliding of the second coil 38 at the rear side while satisfying the electrical connection between the second positive connection end 52 at the rear side and the third conductive strip 61. The support tube 54 is used to support the first elastic ejector pin 55, the vertical plate 57 is used to support the second elastic ejector pin 58 and the third elastic ejector pin 59, and the fourth conductive strip 62 is used to connect to the negative pole of the power supply. When the first conductive strip 56 is connected to the positive pole of the power supply, the two first coils 23 can be powered on and work. When the second conductive strip 6 is connected to the positive pole of the power supply, the second coil 38 at the front side can be powered on and work. When the third conductive strip 61 is connected to the positive pole of the power supply, the second coil 38 at the rear side can be powered on and work.
[0037] Preferably, the first conductive strip 56, the second conductive strip 6, the third conductive strip 61, and the fourth conductive strip 62 all extend from the front end of the housing 11. With such a structure, the first conductive strip 56, the second conductive strip 6, the third conductive strip 61, and the fourth conductive strip 62 can be connected to an external power source.
[0038] Preferably, connection holes 63 are provided at one end of the first conductive strip 56, the second conductive strip 6, the third conductive strip 61, and the fourth conductive strip 62 that extends out of the housing 11. With such a structure, it is convenient to connect the first conductive strip 56, the second conductive strip 6, the third conductive strip 61, and the fourth conductive strip 62 to an external power source.
[0039] Preferably, the housing 11 includes a housing body 7, and a cover plate 71 is detachably and fixedly connected to the front end of the housing body 7. With such a structure, it is convenient to assemble various components into the housing 11, and at the same time, it is convenient to repair the components inside the housing 11.
[0040] Preferably, the housing body 7 and the cover plate 71 are fixedly connected by bolts. With such a structure, the housing body 7 and the cover plate 71 can be detachably and fixedly connected.
[0041] Preferably, slide rails 72 that match the sliders 2 are provided at both the left and right ends inside the housing 11. With such a structure, the sliders 2 can be slidably connected inside the housing 11.
[0042] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. A magnetostrictive micro-displacement platform, comprising a moving platform (1) and a housing (11), Characterized in that: Two symmetric sliders (2) are slidably connected inside the housing (11) in the front and rear. Magnetostrictive rods (21) are provided on the opposite sides of the two sliders (2). A connecting block (22) is fixedly connected between the two magnetostrictive rods (21). The moving platform (1) is arranged at the upper end of the connecting block (22). First coils (23) are sleeved outside the two magnetostrictive rods (21). Fixing mechanisms are provided at the lower ends of the two sliders (2). The fixing mechanism includes an iron cylinder (3) arranged at the lower end of the slider (2). A rectangular groove (31) is provided at the lower end of the iron cylinder (3). A circular groove (32) is provided at the upper end of the rectangular groove (31). A spring (33) and a limiting plate (34) are sequentially assembled in the circular groove (32) from top to bottom. A rectangular column (35) extending out of the rectangular groove (31) is provided at the lower end of the limiting plate (34). An armature plate (36) is provided at the lower end of the rectangular column (35). A first sawtooth (37) is provided at the lower end of the armature plate (36). A second coil (38) is sleeved outside the iron cylinder (3). A strip plate (4) matching the armature plate (36) is provided at the inner bottom of the housing (11). A second sawtooth (41) matching the first sawtooth (37) is provided at the upper end of the strip plate (4); The first coil (23) includes a first positive connection end (5) and a first negative connection end (51), the second coil (38) includes a second positive connection end (52) and a second negative connection end (53), both front and rear sides of the lower part of the connection block (22) are fixedly connected with support tubes (54), the lower ends of both support tubes (54) are fixedly connected with first elastic thimbles (55), the first positive connection ends (5) of the two first coils (23) respectively penetrate into the two support tubes (54) and are electrically connected with the first elastic thimbles (55), a strip-shaped groove is provided at the upper end of the strip-shaped plate (4), and a first conductive strip (56) matching the first elastic thimble (55) is provided in the strip-shaped groove. Vertical plates (57) are provided on the left side of the rear slider (2) and the right side of the front slider (2). Second elastic thimbles (58) and third elastic thimbles (59) are arranged at intervals from top to bottom at one end of the vertical plate (57) away from the slider (2). The second positive connection end (52) of the rear second coil (38) is electrically connected with the third elastic thimble (59) at the rear, the second positive connection end (52) of the front second coil (38) is electrically connected with the third elastic thimble (59) at the front, the second negative connection end (53) of the rear second coil (38) and the first negative connection end (51) of the rear first coil (23) are both electrically connected with the second elastic thimble (58) at the rear, the second negative connection end (53) of the front second coil (38) and the first negative connection end (51) of the front first coil (23) are both electrically connected with the second elastic thimble (58) at the front. A second conductive strip (6) matching the third elastic thimble (59) at the front is provided at the right end inside the housing (11), a third conductive strip (61) matching the third elastic thimble (59) at the rear is provided at the left end inside the housing (11), and fourth conductive strips (62) matching the two second elastic thimbles (58) are provided at the left and right ends inside the housing (11).
2. A magnetostrictive micro-displacement platform according to claim 1, characterized in that: the first conductive strip (56), the second conductive strip (6), the third conductive strip (61) and the fourth conductive strip (62) all extend out from the front end of the housing (11).
3. A magnetostrictive micro-displacement platform according to claim 2, characterized in that: connection holes (63) are provided at one ends of the first conductive strip (56), the second conductive strip (6), the third conductive strip (61) and the fourth conductive strip (62) extending out of the housing (11).
4. A magnetostrictive micro-displacement platform according to claim 1, characterized in that: the housing (11) includes a housing body (7), and a cover plate (71) is detachably and fixedly connected to the front end of the housing body (7).
5. A magnetostrictive micro-displacement platform according to claim 1, characterized in that: the housing body (7) and the cover plate (71) are fixedly connected by bolts.
6. A magnetostrictive micro-displacement platform according to claim 1, characterized in that: On both the left and right ends inside the said outer shell (11), there are slide rails (72) that match the sliders (2).
Citation Information
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