Piezoelectric linear motor and focusing treatment part

Abstract

The utility model discloses a piezoelectric linear motor and a focusing treatment part, the piezoelectric linear motor comprises an X-axis moving structure and a support, and the X-axis moving structure is installed in the support. The X-axis moving structure comprises an X-axis piezoelectric ceramic, an X-axis moving rod and an X-axis sliding block, the X-axis moving rod is movably installed on the support, the X-axis piezoelectric ceramic is installed on the support and located at the position close to one end of the X-axis moving rod, and the X-axis moving rod is sleeved with the X-axis sliding block in a sliding mode. The focusing treatment head is installed in an X-axis sliding block of the piezoelectric linear motor. The moving position of one end of the X-axis moving rod is adjusted through the X-axis piezoelectric ceramic, so that the moving distance of the X-axis sliding block and the focusing treatment head on the X-axis moving rod is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to focusing treatment instrument technical field, concretely relates to a piezoelectric linear motor and focusing treatment department. BACKGROUND

[0002] The principle of ultrasonic focusing is mainly to use ultrasonic waves as energy, emit ultrasonic waves from outside and focus in specific parts in the body, use sound waves and heat energy conversion to form a high-temperature treatment point in a very short time. This process involves the tissue penetration and energy deposition of ultrasonic waves, so that the ultrasonic waves can focus on the diseased tissue in the body, and achieve the purpose of treating diseases through thermal effect, mechanical effect and cavitation effect.

[0003] The patent document with the authorized announcement number CN117085267B discloses a kind of focusing ultrasonic energy output device, and it specifically discloses that: the installation shell is provided with motor and ultrasonic transducer, motor is provided at least three, motor controls ultrasonic transducer at least in three different directions moves;The motor includes horizontal stepper motor, horizontal stepper motor drives horizontal sliding table to carry out horizontal reciprocating linear motion, horizontal sliding table one side is provided with longitudinal motor, longitudinal motor drive shaft end portion is provided with mounting seat, mounting seat is magnetically attracted and fixed with rotating assembly, rotating assembly end portion is provided with motor fixing seat, motor fixing seat bottom is provided with vertical stepper motor, vertical stepper motor drives vertical sliding table to carry out vertical reciprocating linear motion, vertical sliding table bottom is provided with ultrasonic transducer, longitudinal motor drives rotating assembly small amplitude rotation to realize ultrasonic transducer longitudinal displacement adjustment.

[0004] The above-mentioned focusing ultrasonic energy output device can adjust the displacement of ultrasonic transducer in three directions under the action of three motors. However, there are still the following problems: driving ultrasonic transducer by motor not only needs complex structure design, but also the power of motor is large, which cannot realize miniaturization and portability of ultrasonic focusing treatment product. Utility model content

[0005] In view of the problems existing in the above prior art, the purpose of the utility model is to provide a piezoelectric linear motor and focusing treatment department, which can simplify the structure of ultrasonic focusing treatment instrument and reduce the occupied space.

[0006] In order to achieve the above-mentioned purpose, a technical scheme of the utility model is:

[0007] The piezoelectric linear motor comprises an X-axis moving structure and a bracket, the X-axis moving structure is installed in the bracket; the X-axis moving structure comprises an X-axis piezoelectric ceramic, an X-axis moving rod and an X-axis sliding block, the X-axis moving rod is movably installed on the bracket, the X-axis piezoelectric ceramic is installed on the bracket and located at a position close to one end of the X-axis moving rod, and the X-axis sliding block is slidably sleeved on the X-axis moving rod; the moving position of one end of the X-axis moving rod is adjusted through the X-axis piezoelectric ceramic, so that the moving distance of the X-axis sliding block on the X-axis moving rod is adjusted.

[0008] Further, the Y-axis moving structure, a first fixed plate, a first sliding rod, a second fixed plate and a second sliding rod are arranged on the bracket; the Y-axis moving structure comprises a Y-axis piezoelectric ceramic, a Y-axis moving rod and a Y-axis sliding block; the Y-axis piezoelectric ceramic is located at a position of one end of the Y-axis moving rod, the Y-axis sliding block is slidably sleeved on the Y-axis moving rod, a surface of the Y-axis sliding block is connected with a surface of the first fixed plate, another surface of the first fixed plate is connected with one end of the first sliding rod, and the other end of the first sliding rod is movably arranged in a first blind hole of a side wall of the bracket; one end of the second sliding rod is connected with a surface of the second fixed plate, and the other end of the second sliding rod is movably arranged in a second blind hole of a bottom surface of the bracket.

[0009] Further, a Z-axis moving structure is arranged on another surface of the second fixed plate, and the Z-axis moving structure further comprises a Z-axis piezoelectric ceramic, a Z-axis moving rod and a Z-axis sliding block; the Z-axis piezoelectric ceramic is located at a position of one end of the Z-axis moving rod, the Z-axis sliding block is slidably sleeved on the Z-axis moving rod, and a surface of the Z-axis sliding block is connected with another surface of the second fixed plate.

[0010] Further, the bracket comprises a first mounting plate and a second mounting plate arranged at intervals, and the first mounting plate is connected with the second mounting plate through at least one connecting rod; two ends of the X-axis moving rod are movably connected with the first mounting plate and the second mounting plate respectively.

[0011] Further, a first through hole penetrates a surface of the first mounting plate, a first annular protruding structure is arranged on an inner wall of the first through hole; a first mounting structure is further arranged, a first annular recessed structure is arranged on a side wall of the first mounting structure, and a second through hole penetrates a surface of the first mounting structure; the first annular protruding structure is inserted into the first annular recessed structure, and one end of the X-axis moving rod is arranged in the second through hole.

[0012] Further, the first mounting structure comprises a first sub-mounting part, a first connecting part and a second sub-mounting part connected in sequence; a surface of the first sub-mounting part, an outer wall of the first connecting part and a surface of the second sub-mounting part form the first annular recess structure.

[0013] Further, a third through hole penetrates a surface of the second mounting plate, and a second annular protruding structure is arranged on an inner wall of the third through hole; a second mounting structure is further arranged, a second annular recess structure is arranged on a side wall of the second mounting structure, and a fourth through hole penetrates a surface of the second mounting structure; the second annular protruding structure is inserted into the second annular recess structure, and the other end of the X-axis moving rod is arranged in the fourth through hole.

[0014] Further, the second mounting structure comprises a third sub-mounting part, a second connecting part and a fourth sub-mounting part connected in sequence; a surface of the third sub-mounting part, an outer wall of the second connecting part and a surface of the fourth sub-mounting part form the second annular recess structure.

[0015] Further, the X-axis sliding block comprises a sliding part, a first clamping arm and a second clamping arm; a fifth through hole penetrates a surface of the sliding part, and the X-axis moving rod is movably arranged in the fifth through hole; the first clamping arm and the second clamping arm are arranged at one end of the sliding part respectively, and the first clamping arm and the second clamping arm have a clamping space therebetween.

[0016] Further, the first clamping arm and the second clamping arm are respectively in the shape of a circular arc, or the first clamping arm and the second clamping arm are respectively in the shape of a hook, or the first clamping arm and the second clamping arm are respectively in the shape of a plane.

[0017] Another technical scheme of the utility model is: a focusing treatment part comprising the piezoelectric linear motor, further comprising a focusing treatment head, wherein the focusing treatment head is mounted on the X-axis sliding block of the piezoelectric linear motor.

[0018] The utility model has the advantages of:

[0019] The X-axis piezoelectric ceramic is connected with one end of the X-axis moving rod, an X-axis sliding block is sleeved on the X-axis moving rod, the X-axis sliding block can move back and forth on the X-axis moving rod through the working of the X-axis piezoelectric ceramic, and since the driving source for driving the X-axis sliding block to move is piezoelectric ceramic, the piezoelectric ceramic occupies a small space and has a simple structure, so that the miniaturization and portability of the ultrasonic focusing treatment product can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the three-dimensional structure schematic diagram of an embodiment of the utility model.

[0021] Figure 2 is a disassembled structural schematic view of the first embodiment of the utility model; Figure 1

[0022] Figure 3 is a plan structure schematic view of the first mounting structure in the first embodiment of the utility model; Figure 1

[0023] Figure 4 is a plan structure schematic view of the second mounting structure in the first embodiment of the utility model; Figure 1

[0024] Figure 5 is a three-dimensional structure schematic view of the second embodiment of the utility model;

[0025] Figure 6 is a plan structure schematic view of the X-axis sliding block and the focusing treatment head in the second embodiment of the utility model; Figure 5

[0026] Figure 7 is a three-dimensional structure schematic view of the third embodiment of the utility model;

[0027] Figure 8 is a disassembled structural schematic view of the third embodiment of the utility model; Figure 7

[0028] Figure 9 is a three-dimensional structure schematic view of the fourth embodiment of the utility model.

[0029] Reference signs

[0030] 100, focusing treatment part;

[0031] ​​​​​1, piezoelectric linear motor; 11, X-axis moving structure; 111, X-axis piezoelectric ceramic; 112, X-axis moving rod; 113, X-axis sliding block; 1131, sliding part; 1132, first clamping arm; 1133, second clamping arm; 1134, fifth through hole; 1135, clamping space; 1136, recessed part; 1137, baffle; 12, bracket; 121, first mounting plate; 1211, containing structure; 1212, first through hole; 1213, first annular protruding structure; 122, second mounting plate; 1221, third through hole; 1222, second annular protruding structure; 123, connecting rod; 124, first mounting structure; 1241, second through hole; 1242, first annular recessed structure; 1243, first sub-mounting part; 1244, first connecting part; 1245, second sub-mounting part; 125, second mounting structure; 1251, fourth through hole; 1252, second annular recessed structure; 1253, third sub-mounting part; 1254, second connecting part; 1255, fourth sub-mounting part; 126, first blind hole; 127, second blind hole; 13, Y-axis moving structure; 131, Y-axis piezoelectric ceramic; 132, Y-axis moving rod; 133, Y-axis sliding block; 14, first fixed plate; 15, first sliding rod; 16, second fixed plate; 17, second sliding rod; 18, Z-axis moving structure; 181, Z-axis piezoelectric ceramic; 182, Z-axis moving rod; 183, Z-axis sliding block;

[0032] 2, focusing treatment head; 21, abutting portion. DETAILED DESCRIPTION

[0033] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top surface", "bottom surface" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation of the present application.

[0034] In addition, the terms "first", "second" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can be explicitly or implicitly included one or more features, and in the description of the present application, the meaning of "several" is two or more, unless otherwise specifically limited.

[0035] In the utility model, except another explicit stipulation and limitation, if there are terms "assemble", "connect" and "connect" terms should be understood as broad, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be directly connected, can be connected through intermediate medium, can be two elements inside connected. For ordinary skilled in the art, the above terms can be understood according to the specific circumstances the specific meaning of the utility model.

[0036] The utility model is further described below in conjunction with the drawings and specific embodiments, the following description is only exemplary, does not limit the protection scope of the utility model.

[0037] Please refer to Figures 1-4 A focusing treatment unit 100, including a piezoelectric linear motor 1, piezoelectric linear motor 1 includes X-axis moving structure 11 and support 12, the X-axis moving structure 11 is installed in the support 12.The X-axis moving structure 11 includes X-axis piezoelectric ceramic 111, X-axis moving rod 112 and X-axis sliding block 113, the X-axis moving rod 112 is movably installed on the support 12, the X-axis piezoelectric ceramic 111 is installed on the support 12, and the X-axis piezoelectric ceramic 111 is located at the position close to one end of the X-axis moving rod 112.The X-axis sliding block 113 is slidably sleeved on the X-axis moving rod 112.The movement position of one end of the X-axis moving rod 112 is adjusted by the X-axis piezoelectric ceramic 111, so as to adjust the moving distance of the X-axis sliding block 113 on the X-axis moving rod 112.

[0038] Specifically, when the X-axis piezoelectric ceramic 111 works, the X-axis piezoelectric ceramic 111 generates inverse piezoelectric effect, that is, an alternating electric field is applied on the X-axis piezoelectric ceramic 111, which can change the shape of the X-axis piezoelectric ceramic 111, so that the X-axis piezoelectric ceramic 111 becomes longer or shorter with the change of electric field voltage.The deformation of X-axis piezoelectric ceramic 111 is transmitted to X-axis moving rod 112, and under the friction between X-axis sliding block 113 and X-axis moving rod 112 and the inertia of X-axis sliding block 113 itself, X-axis sliding block 113 can move back and forth on X-axis moving rod 112.

[0039] Since the X-axis moving structure 11 uses piezoelectric ceramic (X-axis piezoelectric ceramic 111) as the driving source of adjusting displacement, the occupied space can be effectively reduced, and the space utilization of the whole structure is increased.

[0040] The support 12 comprises a first mounting plate 121 and a second mounting plate 122, which are spaced apart by a certain distance, and the first mounting plate 121 is connected with the second mounting plate 122 through at least one connecting rod 123, and the two ends of the X-axis moving rod 112 are movably connected with the first mounting plate 121 and the second mounting plate 122 respectively. A hollow accommodating structure 1211 for mounting the X-axis piezoelectric ceramic 111 is arranged on the surface of the first mounting plate 121 away from the second mounting plate 122.

[0041] In the embodiment, a first through hole 1212 penetrates the surface of the first mounting plate 121, and a first annular protruding structure 1213 is arranged on the inner wall of the first through hole 1212. Correspondingly, there is a first mounting structure 124, the surface of the first mounting structure 124 is provided with a second through hole 1241, and one end of the X-axis moving rod 112 is movably arranged in the second through hole 1241.

[0042] Specifically, the side wall of the first mounting structure 124 is provided with a first annular recessed structure 1242 matched with the first annular protruding structure 1213, and the first mounting structure 124 can be mounted in the first mounting plate 121 by inserting the first annular protruding structure 1213 into the first annular recessed structure 1242, which is equivalent to movably arranging one end of the X-axis moving rod 112 on the first mounting plate 121.

[0043] Please refer to Figures 2-3 More specifically, the first mounting structure 124 comprises a first sub-mounting part 1243, a first connecting part 1244 and a second sub-mounting part 1245 connected in sequence, the distance between the first sub-mounting part 1243 and the second sub-mounting part 1245 is basically consistent with the thickness of the first annular protruding structure 1213, the first sub-mounting part 1243 and the second sub-mounting part 1245 are both in the shape of a round sheet, and the cross-sectional dimension of the first connecting part 1244 is much smaller than that of the first sub-mounting part 1243 and the second sub-mounting part 1245. Therefore, the surface opposite to the first sub-mounting part 1243 and the second sub-mounting part 1245, the outer wall of the first connecting part 1244 and the surface opposite to the second sub-mounting part 1245 and the first sub-mounting part 1243 form the first annular recessed structure 1242.

[0044] In the embodiment, a third through hole 1221 penetrates the surface of the second mounting plate 122, and a second annular protruding structure 1222 is arranged on the inner wall of the third through hole 1221. Correspondingly, there is a second mounting structure 125, the surface of the second mounting structure 125 is provided with a fourth through hole 1251, and the other end of the X-axis moving rod 112 is movably arranged in the fourth through hole 1251.

[0045] Specifically, the side wall of the second mounting structure 125 is provided with a second annular recess structure 1252 matched with the second annular protruding structure 1222, and the second annular protruding structure 1222 is inserted into the second annular recess structure 1252, so that the second mounting structure 125 is mounted in the second mounting plate 122, and the other end of the X-axis moving rod 112 is movably arranged on the second mounting plate 122.

[0046] Please refer to Figure 2 and Figure 4 More specifically, the second mounting structure 125 comprises a third sub-mounting part 1253, a second connecting part 1254 and a fourth sub-mounting part 1255 connected in sequence, the distance between the third sub-mounting part 1253 and the fourth sub-mounting part 1255 is substantially the same as the thickness of the second annular protruding structure 1222, the third sub-mounting part 1253 and the fourth sub-mounting part 1255 are both in the shape of a round sheet, and the cross-sectional dimension of the second connecting part 1254 is much smaller than that of the third sub-mounting part 1253 and the fourth sub-mounting part 1255. Therefore, one surface of the third sub-mounting part 1253 opposite to the fourth sub-mounting part 1255, the outer wall of the second connecting part 1254 and one surface of the fourth sub-mounting part 1255 opposite to the third sub-mounting part 1253 form the aforementioned second annular recess structure 1252.

[0047] In the embodiment, the X-axis sliding block 113 comprises a sliding part 1131, a first clamping arm 1132 and a second clamping arm 1133, and a fifth through hole 1134 is formed through the surface of the sliding part 1131, so that the X-axis moving rod 112 is movably arranged in the fifth through hole 1134, i.e. the X-axis sliding block 113 is slidably arranged on the X-axis moving rod 112. The first clamping arm 1132 and the second clamping arm 1133 are arranged at the lower end of the sliding part 1131 respectively, and the first clamping arm 1132 and the second clamping arm 1133 are spaced apart by a certain distance to form a clamping space 1135.

[0048] Specifically, in the embodiment, the first clamping arm 1132 and the second clamping arm 1133 are both in the shape of a circular arc.

[0049] In the utility model, the focusing treatment part 100 further comprises a focusing treatment head 2 applied to the piezoelectric linear motor 1, and at least two abutting parts 21 are arranged on the surface of the focusing treatment head 2. The focusing treatment head 2 is arranged in the clamping space 1135, and the abutting parts 21 of the focusing treatment head 2 can abut against the first clamping arm 1132 and the second clamping arm 1133 respectively.

[0050] The working principle of the utility model will be introduced below, so as to better understand the utility model:

[0051] The voltage is applied to the X-axis piezoelectric ceramic 111, and the X-axis piezoelectric ceramic 111 generates a reverse piezoelectric effect, that is, an alternating electric field is applied to the X-axis piezoelectric ceramic 111, which can change the shape of the X-axis piezoelectric ceramic 111, so that the X-axis piezoelectric ceramic 111 is lengthened or shortened with the change of the electric field voltage. The deformation of the X-axis piezoelectric ceramic 111 is transmitted to the X-axis moving rod 112, and the X-axis sliding block 113 can move back and forth on the X-axis moving rod 112 under the friction between the X-axis sliding block 113 and the X-axis moving rod 112 and the inertia of the X-axis sliding block 113 itself, thereby driving the focusing treatment head 2 to move back and forth.

[0052] Please refer to Figures 5-6 The utility model also has a second embodiment, and the difference between the second embodiment and the first embodiment lies in that the structure of the X-axis sliding block 113 is changed, and specifically:

[0053] In the embodiment, the surface of the sliding part 1131 is not provided with the fifth through hole 1134, and instead, a recessed part 1136 is arranged in the middle of the sliding part 1131, the recessed depth of the recessed part 1136 is slightly larger than the diameter of the X-axis moving rod 112, and the opening of the recessed part 1136 is closed by using a baffle 1137, so that the X-axis moving rod 112 can be arranged in the recessed part 1136.

[0054] The first clamping arm 1132 and the second clamping arm 1133 are not in the form of a circular arc, and in the embodiment, the first clamping arm 1132 and the second clamping arm 1133 are respectively in the form of a plane, and the first clamping arm 1132 and the second clamping arm 1133 are respectively arranged perpendicularly on the bottom surface of the sliding part 1131.

[0055] Other technical features and technical effects are the same as those of the first embodiment, and will not be repeated here.

[0056] Please refer to Figures 7-8 The utility model also has a third embodiment, and the difference between the third embodiment and the second embodiment lies in that the moving direction of the focusing treatment head 2 is increased, and specifically:

[0057] In the embodiment, the bracket 12 is provided with a Y-axis moving structure 13, a first fixed plate 14, a first sliding rod 15, a second fixed plate 16 and a second sliding rod 17.

[0058] Specifically, the Y-axis moving structure 13 comprises a Y-axis piezoelectric ceramic 131, a Y-axis moving rod 132 and a Y-axis sliding block 133. The Y-axis piezoelectric ceramic 131 is located at one end of the Y-axis moving rod 132 and connected with the end face of the one end of the Y-axis moving rod 132. The Y-axis sliding block 133 is sleeved on the Y-axis moving rod 132 in a sliding manner, and the surface of the Y-axis sliding block 133 is fixedly connected with one surface of the first fixed plate 14. The other surface of the first fixed plate 14 is connected with one end of the first sliding rod 15, and the other end of the first sliding rod 15 is movably arranged in the first blind hole 126 on the bottom surface of the support 12. One end of the second sliding rod 17 is connected with one surface of the second fixed plate 16, and the other end of the second sliding rod 17 is movably arranged in the second blind hole 127 on the side wall of the support 12, and the moving direction of the second sliding rod 17 in the second blind hole 127 is consistent with the sliding direction of the Y-axis sliding block 133 on the Y-axis moving rod 132.

[0059] More specifically, the number of the first blind holes 126 is four, of which two first blind holes 126 are arranged on the bottom surface of the first mounting plate 121, and the remaining two first blind holes 126 are arranged on the bottom surface of the second mounting plate 122. Correspondingly, the number of the first sliding rods 15 is four, one end of each of the four first sliding rods 15 is connected with the first fixed plate 14, and the other end of each of two first sliding rods 15 is movably arranged in the first blind hole 126 on the bottom surface of the first mounting plate 121, and the other end of each of the remaining two first sliding rods 15 is movably arranged in the first blind hole 126 on the bottom surface of the second mounting plate 122. Of course, the number of the first blind holes 126 (or the first sliding rods 15) can be one, two, etc., and the first blind holes 126 can be arranged only on the first mounting plate 121 or only on the second mounting plate 122, which is not limited here.

[0060] Similarly, the number of the second blind holes 127 is four, of which two second blind holes 127 are arranged on the side wall of the first mounting plate 121, and the remaining two second blind holes 127 are arranged on the side wall of the second mounting plate 122. The number of the second sliding rods 17 is four, one end of each of the four second sliding rods 17 is connected with the first fixed plate 14, and the other end of each of two second sliding rods 17 is movably arranged in the second blind hole 127 on the side wall of the first mounting plate 121, and the other end of each of the remaining two second sliding rods 17 is movably arranged in the second blind hole 127 on the side wall of the second mounting plate 122. Of course, the number of the second blind holes 127 (or the second sliding rods 17) can be one, two, etc., and the second blind holes 127 can be arranged only on the first mounting plate 121 or only on the second mounting plate 122, which is not limited here.

[0061] When the Y-axis piezoelectric ceramic 131 works, the Y-axis piezoelectric ceramic 131 generates a reverse piezoelectric effect, that is, an alternating electric field is applied to the Y-axis piezoelectric ceramic 131, which can change the shape of the Y-axis piezoelectric ceramic 131, so that the Y-axis piezoelectric ceramic 131 becomes longer or shorter with the change of the electric field voltage. The deformation of the Y-axis piezoelectric ceramic 131 is transmitted to the Y-axis moving rod 132, and under the friction between the Y-axis sliding block 133 and the Y-axis moving rod 132 and the inertia of the Y-axis sliding block 133 itself, the Y-axis sliding block 133 can move back and forth on the Y-axis moving rod 132. The sliding of the Y-axis sliding block 133 makes the fixed frame move back and forth along the length direction of the second slide rod 17.

[0062] In the embodiment, the Z-axis moving structure 18 is arranged on the other surface of the second fixed plate 16, and the Z-axis moving structure 18 comprises a Z-axis piezoelectric ceramic 181, a Z-axis moving rod 182 and a Z-axis sliding block 183.

[0063] Specifically, the Z-axis piezoelectric ceramic 181 is located at one end of the Z-axis moving rod 182, and the Z-axis piezoelectric ceramic 181 is connected with the one end of the Z-axis moving rod 182. The Z-axis sliding block 183 is slidably sleeved on the Z-axis moving rod 182, and the sliding direction of the Z-axis sliding block 183 on the Z-axis moving rod 182 is consistent with the moving direction of the first slide rod 15 in the first blind hole 126. The surface of the Z-axis sliding block 183 is fixedly connected with the other surface of the second fixed plate 16.

[0064] Similarly, when the Z-axis piezoelectric ceramic 181 works, the Z-axis sliding block 183 can move back and forth on the Z-axis moving rod 182, and the sliding of the Z-axis sliding block 183 makes the fixed frame move back and forth along the length direction of the first slide rod 15.

[0065] In the embodiment, under the actions of the X-axis moving structure 11, the Y-axis moving structure 13 and the Z-axis moving structure 18, the focusing treatment head 2 can realize all-around displacement adjustment, and since the X-axis moving structure 11, the Y-axis moving structure 13 and the Z-axis moving structure 18 all adopt piezoelectric ceramics (the X-axis piezoelectric ceramic 111, the Y-axis piezoelectric ceramic 131 and the Z-axis piezoelectric ceramic 181) as the driving sources for adjusting displacement, the occupied space can be effectively reduced, and the space utilization rate of the whole structure is increased.

[0066] Other technical features and technical effects are the same as those of the second embodiment, which will not be repeated here.

[0067] Please refer to Figure 9 The utility model still has fourth embodiment, fourth embodiment and first embodiment's difference lies in to the structure of X-axis sliding block 113 has carried out the change, specifically:

[0068] In the present embodiment, the first clamping arm 1132 and the second clamping arm 1133 are respectively hook-shaped, so as to further improve the connection strength of the first clamping arm 1132 and the second clamping arm 1133 with the abutting portion 21.

[0069] Other technical features and technical effects are the same as those of the first embodiment, which will not be repeated here.

Claims

1. A piezoelectric linear motor, characterized by, Comprising: An X-axis moving structure and a bracket, the X-axis moving structure is installed in the bracket; The X-axis moving structure comprises an X-axis piezoelectric ceramic, an X-axis moving rod and an X-axis sliding block, the X-axis moving rod is movably installed on the bracket, the X-axis piezoelectric ceramic is installed on the bracket, and the X-axis piezoelectric ceramic is located at a position close to one end of the X-axis moving rod, and the X-axis sliding block is slidably sleeved on the X-axis moving rod; The moving position of one end of the X-axis moving rod is adjusted through the X-axis piezoelectric ceramic, so as to adjust the moving distance of the X-axis sliding block on the X-axis moving rod.

2. The piezoelectric linear motor according to claim 1, wherein: A Y-axis moving structure, a first fixed plate, a first sliding rod, a second fixed plate and a second sliding rod are arranged on the bracket; The Y-axis moving structure comprises a Y-axis piezoelectric ceramic, a Y-axis moving rod and a Y-axis sliding block; The Y-axis piezoelectric ceramic is located at a position of one end of the Y-axis moving rod, the Y-axis sliding block is slidably sleeved on the Y-axis moving rod, a surface of the Y-axis sliding block is connected with a surface of the first fixed plate, another surface of the first fixed plate is connected with one end of the first sliding rod, and the other end of the first sliding rod is movably arranged in a first blind hole of a side wall of the bracket; One end of the second sliding rod is connected with a surface of the second fixed plate, and the other end of the second sliding rod is movably arranged in a second blind hole of a bottom surface of the bracket.

3. The piezoelectric linear motor according to claim 2, wherein: A Z-axis moving structure is arranged on another surface of the second fixed plate, and the Z-axis moving structure further comprises a Z-axis piezoelectric ceramic, a Z-axis moving rod and a Z-axis sliding block; The Z-axis piezoelectric ceramic is located at a position of one end of the Z-axis moving rod, the Z-axis sliding block is slidably sleeved on the Z-axis moving rod, and a surface of the Z-axis sliding block is connected with another surface of the second fixed plate.

4. The piezoelectric linear motor according to claim 1, wherein: The bracket comprises a first mounting plate and a second mounting plate arranged at intervals, and the first mounting plate is connected with the second mounting plate through at least one connecting rod; Both ends of the X-axis moving rod are movably connected with the first mounting plate and the second mounting plate respectively.

5. The piezoelectric linear motor according to claim 4, wherein: A first through hole penetrates a surface of the first mounting plate, and a first annular protruding structure is arranged on an inner wall of the first through hole; Further comprising a first mounting structure, a first annular recessed structure is arranged on a side wall of the first mounting structure, and a second through hole penetrates a surface of the first mounting structure; The first annular protruding structure is inserted into the first annular recessed structure, and one end of the X-axis moving rod is arranged in the second through hole.

6. The piezoelectric linear motor according to claim 5, wherein: The first mounting structure comprises a first sub-mounting part, a first connecting part and a second sub-mounting part connected in sequence; One surface of the first sub-mounting part, an outer wall of the first connecting part and one surface of the second sub-mounting part form the first annular recess structure.

7. The piezoelectric linear motor according to claim 6, characterized in that: A third through hole penetrates through the surface of the second mounting plate, and a second annular protruding structure is arranged on the inner wall of the third through hole; Further comprising a second mounting structure, a second annular recess structure is arranged on the side wall of the second mounting structure, and a fourth through hole penetrates through the surface of the second mounting structure; The second annular protruding structure is inserted into the second annular recess structure, and the other end of the X-axis moving rod is arranged in the fourth through hole.

8. The piezoelectric linear motor according to claim 7, characterized in that: The second mounting structure comprises a third sub-mounting part, a second connecting part and a fourth sub-mounting part connected in sequence; One surface of the third sub-mounting part, an outer wall of the second connecting part and one surface of the fourth sub-mounting part form the second annular recess structure.

9. The piezoelectric linear motor according to claim 8, characterized in that: The X-axis sliding block comprises a sliding part, a first clamping arm and a second clamping arm; A fifth through hole penetrates through the surface of the sliding part, and the X-axis moving rod is movably arranged in the fifth through hole; The first clamping arm and the second clamping arm are respectively arranged at one end of the sliding part, and the first clamping arm and the second clamping arm have a clamping space therebetween.

10. The piezoelectric linear motor according to claim 9, characterized in that: The first clamping arm and the second clamping arm are respectively in the shape of a circular arc, or the first clamping arm and the second clamping arm are respectively in the shape of a hook, or the first clamping arm and the second clamping arm are respectively in the shape of a plane.

11. A focused treatment unit, characterized in that: It comprises the piezoelectric linear motor according to any one of claims 1 to 10, and a focused treatment head, which is mounted on the X-axis sliding block of the piezoelectric linear motor.

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