Linear Motors

Abstract

The present invention provides a linear motor, comprising: a moving part (1), a first clamping component (91), and a driving component (900); the first clamping component (91) comprises a clamping mechanism, wherein the clamping mechanism can switch between bidirectional locking, unidirectional motion, and bidirectional motion, respectively making the moving part (1) bidirectionally locked, unidirectional free motion, and bidirectional free motion relative to the clamping mechanism in a linear direction; wherein the linear direction is the axial direction of the moving part (1); under the drive of the driving component (900), the first clamping component (91) can reciprocate in a linear direction. The present invention has a reasonable structure and is easy to maintain. It is a new type of linear motor. The present invention can realize switching between a bidirectional locking state, a unidirectional motion state, and a bidirectional motion state, thereby realizing that the moving part cannot move in both directions, can only move in one direction, and can move in both directions.

Description

Technical Field

[0001] The present invention relates to the field of motors, and in particular to linear motors. Background Art

[0002] A linear motor is a kind of machine that directly converts electrical energy into mechanical energy of linear motion. A variety of clamping mechanisms have been disclosed in the prior art. For example, those skilled in the art can refer to "Electromagnetic clamping mechanism and linear drive device and combination thereof" [Application No. 201410387626.2, Publication No. CN104167957A], which discloses an electromagnetic clamping mechanism, including an electromagnetic body, a permanent magnet body and a deformable body, wherein the magnetic poles of the permanent magnet body are in direct contact or close to the magnetic poles of the electromagnetic body to form a control magnetic circuit, and the deformable body is rigidly connected to the permanent magnet body; the permanent magnet body moves relative to the electromagnetic body under the drive of the magnetic field of the control magnetic circuit, and drives the deformable body to deform, thereby realizing clamping, locking and releasing. Those skilled in the art may also refer to patent documents such as “Electromagnetic-permanent magnet clamping mechanism for linear motor” [application number 201020603794.8, publication number CN201869079U] and “Electromagnetic clamping mechanism and stick-slip motion linear motor thereof” [application number 201020603955.3, publication number CN201887641U] to realize the clamping mechanism, and may also refer to “Electromagnetic adaptive clamping clamping device and combined clamping clamping device” [application number 201610038564.3, publication number CN105527840A]. For example, based on the "electromagnetic clamping mechanism and its linear drive device and combination", the deformable body in the clamping mechanism as an output member can be tightly pressed against the locked object for locking, based on the "electromagnetic-permanent magnet clamping mechanism for linear motor", the output rod in the clamping mechanism as an output member can be tightly pressed against the locked object for locking, based on the "electromagnetic clamping mechanism and its stick-slip motion linear motor", the output shaft in the clamping mechanism as an output member can be tightly pressed against the locked object for locking, based on the "electromagnetic adaptive clamping clamping device and combined clamping clamping device", the clamping component in the clamping mechanism as an output member can be tightened and relaxed to tightly clamp and press against the locked object for locking. Those skilled in the art can also refer to the "swinging long-stroke motion device and multi-dimensional motor" [application number 201610351263.6, publication number CN 207321084U] to realize a clamping mechanism with a wide to narrow channel. Summary of the invention

[0003] In view of the defects in the prior art, an object of the present invention is to provide a linear motor.

[0004] A linear motor provided according to the present invention includes: a moving part 1, a first clamping component 91, and a driving component 900;

[0005] The first clamping assembly 91 includes a clamping mechanism, wherein the clamping mechanism can switch between bidirectional locking, unidirectional movement, and bidirectional movement, respectively making the moving part 1 bidirectionally locked, unidirectionally free movement, and bidirectional free movement relative to the clamping mechanism in a linear direction; wherein the linear direction is the axial direction of the moving part 1;

[0006] Driven by the driving assembly 900 , the first clamping assembly 91 can reciprocate in a linear direction.

[0007] Preferably, it also includes a second clamping component 92; wherein, the second clamping component 901 includes a clamping mechanism, wherein the clamping mechanism can switch states between bidirectional locking, unidirectional movement, and bidirectional movement, so that the moving part 1 can be bidirectionally locked, can move freely in only one direction, and can move freely in both directions in a linear direction relative to the clamping mechanism.

[0008] Preferably, the driving assembly 900 includes a first magnetoelectric body 901, a second magnetoelectric body 902, and a connecting elastic member 903;

[0009] The connecting elastic member 903 is connected between the first magnetoelectric body 901 and the second magnetoelectric body 902;

[0010] The first magnetoelectric body 901 is fixed relative to the ground, and the second magnetoelectric body 902 is fastened to the clamping mechanism; or, the moving part 1 is fixed relative to the ground;

[0011] The first magnetoelectric body 901 and the second magnetoelectric body 902 are respectively:

[0012] - Electromagnets, permanent magnets;

[0013] -Permanent magnets, electromagnets;

[0014] -Electromagnet, electromagnet.

[0015] Preferably, the driving assembly 900 includes a permanent magnet 904, an elastic pad 905, a C-shaped coil 906, a rotating shaft 907, and a lever 908;

[0016] The permanent magnet 904 is connected to the gap of the C-shaped coil 906 through an elastic pad 905 ; and the permanent magnet 904 can rotate around the rotating shaft 907 ; one end of the permanent magnet 904 is connected to the clamping mechanism through a lever 908 .

[0017] Preferably, the drive assembly 900 comprises:

[0018] - Pneumatic assembly 909;

[0019] -Hydraulic components;

[0020] -Thermal expansion material component 910;

[0021] - Electromagnetic components;

[0022] - Electrostatic components;

[0023] -Smart material components;

[0024] - components made of shape memory alloys; or

[0025] -Linear motor 911.

[0026] Preferably, the clamping mechanism comprises a controllable multi-state clamping structure;

[0027] The controllable multi-state clamping structure comprises: a moving part 1, a guide sleeve 2, a clamping part 3, and a moving sleeve 4;

[0028] The guide sleeve 2 and the moving sleeve 4 are nested and connected to form an adjustment chamber 201 in the guide sleeve 2; the moving part 1 passes through the guide hole 202 of the guide sleeve 2 and the adjustment chamber 201, and the clamping part 3 is located in the adjustment chamber 201;

[0029] The width of the regulating chamber 201 in the axial direction of the guide sleeve 2 is narrowed from wide to narrow, forming a wide end 2011 and a narrow end 2012; the moving sleeve 4 is located on one side of the wide end 2011 of the regulating chamber 201;

[0030] Through the relative movement of the guide sleeve 2 and the moving sleeve 4 in the axial direction, the structure of the regulating chamber 201 can be changed between a bidirectional locking state, a unidirectional moving state, and a bidirectional moving state;

[0031] - Bidirectional locking state: the clamping member 3 is squeezed by the moving member 1, the adjusting chamber 201 and the moving sleeve 4, locking the moving member 1 in the guide sleeve 2;

[0032] - Bidirectional motion state: at least one of the moving part 1, the wall of the adjusting chamber 201, and the moving sleeve 4 is separated from the clamp 3, and the moving part 1 can freely move toward the wide end 2011 and can freely move toward the narrow end 2012;

[0033] - One-way motion state: The one-way motion state is a critical state between the two-way locking state and the two-way motion state. In the one-way motion state, the moving part 1 can move freely toward the wide end 2011 and is locked toward the narrow end 2012.

[0034] Preferably, the guide sleeve 2 and the moving sleeve 4 are threadedly connected, and the moving sleeve 4 moves relative to the guide sleeve 2 in the axial direction by rotating.

[0035] Preferably, the controllable multi-state clamping structure further comprises: a stopper 5;

[0036] The guide sleeve 2 and the moving sleeve 4 are locked by a stopper 5 .

[0037] Preferably, the controllable multi-state clamping structure further comprises: a driving mechanism 6;

[0038] The sports sleeve 4 includes: a sleeve 401, a sports elastic member 402, and a limit block 403 connected in sequence; the sleeve 401 is relatively fixed to the guide sleeve 2;

[0039] In the bidirectional locking state: the clamping member 3 is squeezed by the moving member 1, the adjusting chamber 201 and the stop block 403, locking the moving member 1 in the guide sleeve 2, and the moving elastic member 402 is squeezed by the sleeve 401 and the stop block 403 in the axial direction to the maximum compression state;

[0040] In the unidirectional motion state: driven by the moving part 1 , the clamping part 3 can push the limit block 403 toward the kit 401 to compress the moving elastic part 402 , so that the moving part 1 can overcome the elastic force of the moving elastic part 402 and move freely toward the wide end 2011 .

[0041] Under the magnetic force, electric force or mechanical force applied by the driving mechanism 6 , the limit block 403 can overcome the elastic force of the moving elastic member 402 and approach the kit 401 , so that the unidirectional motion state changes to the bidirectional motion state.

[0042] Preferably, the driving mechanism 6 is disposed in the guide sleeve 2 , in the sleeve 401 , or connected between the sleeve 401 and the moving elastic member 402 .

[0043] Preferably, a thrust elastic member 203 is connected between the clamp 3 and the narrow end 2012; the thrust elastic member 203 provides elastic force for the clamp 3 to separate from the regulating chamber 201;

[0044] The moving part 1 moves axially or circumferentially relative to the guide sleeve 2 .

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] 1. The present invention has a reasonable structure and is easy to maintain. It is a new type of linear motor.

[0047] 2. The present invention can realize switching among a two-way locking state, a one-way motion state, and a two-way motion state, thereby realizing that the moving part cannot move in both directions, can only move in one direction, or can move in both directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0049] Figure 1 It is a schematic diagram of the principle of the present invention.

[0050] Figure 2It is a structural schematic diagram of the present invention.

[0051] Figure 3 It is a structural schematic diagram of the present invention.

[0052] Figure 4 It is a structural schematic diagram of the present invention.

[0053] Figure 5 It is a structural schematic diagram of the present invention.

[0054] Figure 6 It is a structural schematic diagram of the present invention.

[0055] Figure 7 It is a structural schematic diagram of the present invention.

[0056] Figure 8 It is a structural schematic diagram of the present invention.

[0057] Fig. 9 It is a structural schematic diagram of the present invention.

[0058] Fig.10 It is a structural schematic diagram of the present invention.

[0059] Fig.11 It is a structural schematic diagram of the present invention.

[0060] Fig.12 It is a structural schematic diagram of the present invention.

[0061] Fig.13 It is a structural schematic diagram of the present invention.

[0062] Fig.14 It is a structural schematic diagram of the present invention.

[0063] Fig.15 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0064] Fig.16 It is a structural schematic diagram of the clamping mechanism of the present invention in a bidirectional locking state.

[0065] Fig.17 It is a structural schematic diagram of the clamping mechanism of the present invention in a critical state.

[0066] Fig.18 It is a structural schematic diagram of the clamping mechanism of the present invention in a bidirectional motion state.

[0067] Fig.19 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0068] Fig. 20 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0069] Fig.21It is a structural schematic diagram of the clamping mechanism of the present invention.

[0070] Fig. 22 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0071] Fig.23 It is a schematic structural diagram of an embodiment of the clamping mechanism of the present invention in which the moving part is rotatable.

[0072] Fig.24 It is a structural schematic diagram of the clamping mechanism of the present invention in a critical state.

[0073] Fig.25 It is a structural schematic diagram of an embodiment of the clamping mechanism combination of the present invention.

[0074] Fig.26 It is a structural schematic diagram of another embodiment of the clamping mechanism combination of the present invention.

[0075] Fig. 27 It is a structural schematic diagram of another embodiment of the clamping mechanism combination of the present invention.

[0076] Fig.28 It is a structural schematic diagram of another embodiment of the clamping mechanism combination of the present invention.

[0077] The figure shows:

[0078]

[0079] DETAILED DESCRIPTION

[0080] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0081] Basic Example

[0082] like Figure 1 As shown, a linear motor provided according to the present invention includes: a moving part 1, a first clamping component 91, and a driving component 900;

[0083] The first clamping assembly 91 includes a clamping mechanism, wherein the clamping mechanism can switch between bidirectional locking, unidirectional movement, and bidirectional movement, respectively making the moving part 1 bidirectionally locked, unidirectionally free movement, and bidirectional free movement relative to the clamping mechanism in a linear direction; wherein the linear direction is the axial direction of the moving part 1;

[0084] Driven by the driving assembly 900 , the first clamping assembly 91 can reciprocate in a linear direction.

[0085] In a preferred example, the linear motor also includes a second clamping component 92; wherein the second clamping component 901 includes a clamping mechanism, wherein the clamping mechanism can switch states between bidirectional locking, unidirectional movement, and bidirectional movement, so that the moving part 1 can be bidirectionally locked, unidirectionally freely move only, or bidirectionally freely move relative to the clamping mechanism in the linear direction.

[0086] Preferred examples of the basic embodiment will be described below.

[0087] Example 1

[0088] like Figure 2 As shown, the driving assembly 900 includes a first magnetoelectric body 901, a second magnetoelectric body 902, and a connecting elastic member 903;

[0089] The connecting elastic member 903 is connected between the first magnetoelectric body 901 and the second magnetoelectric body 902;

[0090] The second magnetoelectric body 902 is fastened to the clamping mechanism;

[0091] The first magnetoelectric body 901 is fixed relative to the ground.

[0092] Magnetoelectric bodies include magnets and / or charged bodies, especially electrostatic bodies.

[0093] Example 2

[0094] like Figure 3 As shown, Figure 3 for Figure 2 Example of changes.

[0095] Step A1: The clamping mechanism is in a unidirectional motion state, and the moving part 1 can only move to the right but not to the left relative to the clamping mechanism; the first magnetoelectric body 901 drives the second magnetoelectric body 902 to move far away, and the second magnetoelectric body 902 pushes the clamping mechanism away from the first magnetoelectric body 901. At this time, since the moving part 1 can only move to the right but not to the left, the moving part 1 also moves with it.

[0096] Step A2: Then, the first magnetoelectric body 901 attracts the second magnetoelectric body 902 to overcome the elastic force of the connecting elastic member 903 and move closer. The second magnetoelectric body 902 pulls the clamping mechanism closer to the first magnetoelectric body 901. At this time, since the moving part 1 can only move to the right but not to the left, the moving part 1 will remain stationary.

[0097] By repeatedly executing the above steps A1 and A2, the moving part 1 can be moved rightward in a stepping manner.

[0098] Example 3

[0099] like Figure 4 As shown, Figure 3 Example of changes. Figure 4 In the embodiment, the unidirectional motion state of the clamping mechanism allows the moving part 1 to move in the reverse direction.

[0100] Step B1: The clamping mechanism is in a unidirectional motion state, and the moving part 1 can only move to the left relative to the clamping mechanism, but cannot move to the right; the first magnetoelectric body 901 drives the second magnetoelectric body 902 to move far away, and the second magnetoelectric body 902 pushes the clamping mechanism away from the first magnetoelectric body 901. At this time, since the moving part 1 can only move to the left and cannot move to the right, the moving part 1 will remain stationary.

[0101] Step B2: Then, the first magnetoelectric body 901 attracts the second magnetoelectric body 902 to overcome the elastic force of the connecting elastic member 903 and move closer. The second magnetoelectric body 902 pulls the clamping mechanism closer to the first magnetoelectric body 901. At this time, since the moving part 1 can only move to the left and cannot move to the right, the moving part 1 also moves with it.

[0102] By repeatedly executing the above steps B1 and B2, the moving part 1 can move in a stepping motion to the left.

[0103] Example 4

[0104] like Figure 5 As shown, Figure 5 for Figure 2 A preferred example of . Figure 5 A first clamping component 91 and a second clamping component 92 have axially symmetrical structures.

[0105] The first magnetoelectric body 901 is fixed relative to the ground.

[0106] The first magnetoelectric body 901 and the second magnetoelectric body 902 are electromagnets and permanent magnets respectively.

[0107] Example 5

[0108] like Figure 6 As shown, Figure 6 for Figure 5 Example of changes.

[0109] The first magnetoelectric body 901 is fixed relative to the ground.

[0110] The first magnetoelectric body 901 and the second magnetoelectric body 902 are respectively a permanent magnet and an electromagnet.

[0111] Example 6

[0112] like Figure 7 As shown, Figure 7 for Figure 5Example of changes.

[0113] The moving part 1 is fixed relative to the ground.

[0114] The first magnetoelectric body 901 and the second magnetoelectric body 902 are electromagnets and permanent magnets respectively.

[0115] Example 7

[0116] like Figure 8 As shown, Figure 8 for Figure 6 Example of changes.

[0117] The moving part 1 is fixed relative to the ground.

[0118] The first magnetoelectric body 901 and the second magnetoelectric body 902 are respectively a permanent magnet and an electromagnet.

[0119] Example 8

[0120] like Fig. 9 As shown, Fig. 9 for Figure 6 Example of changes.

[0121] The first magnetoelectric body 901 is fixed relative to the ground.

[0122] The first magnetoelectric body 901 and the second magnetoelectric body 902 are both electromagnets.

[0123] Example 9

[0124] like Fig.10 As shown, Fig.10 for Fig. 9 Example of changes.

[0125] The moving part 1 is fixed relative to the ground.

[0126] The first magnetoelectric body 901 and the second magnetoelectric body 902 are both electromagnets.

[0127] Example 10

[0128] like Fig.11 As shown, drive assembly 900 includes pneumatic assembly 909 .

[0129] The pneumatic assembly 909 drives the clamping mechanism to achieve reciprocating motion.

[0130] In a variation, the pneumatic component 909 can be changed to a hydraulic component.

[0131] Embodiment 11

[0132] like Fig.12 As shown, the drive assembly 900 includes a thermally expandable material assembly.

[0133] The thermal expansion material assembly drives the clamping mechanism to achieve reciprocating motion.

[0134] In a variation, the thermal expansion material component may be changed to a shape memory alloy material component.

[0135] Example 12

[0136] like Fig.13 As shown, the drive assembly 900 includes a motor, such as a linear motor 911, or a rotary motor.

[0137] The linear motor 911 drives the clamping mechanism to achieve reciprocating motion.

[0138] Example 13

[0139] like Fig.14 As shown, the driving assembly 900 includes a permanent magnet 904, an elastic pad 905, a C-shaped coil 906, a rotating shaft 907, and a lever 908;

[0140] The permanent magnet 904 is connected to the gap of the C-shaped coil 906 through an elastic pad 905 ; and the permanent magnet 904 can rotate around the rotating shaft 907 ; one end of the permanent magnet 904 is connected to the clamping mechanism through a lever 908 .

[0141] A permanent magnet 904 is placed at the gap of the C-shaped coil 906, with polarity as Fig.14 As shown; an elastic pad 905 is placed between the C-shaped coil 906 and the permanent magnet 904. When the C-shaped coil 906 is energized, the permanent magnet 904 rotates around the rotating shaft 907 under the action of the electromagnetic field force, squeezing the elastic pad 905 to produce a small displacement, which is amplified by the lever 908 to produce a larger displacement, driving the right clamping mechanism to move. By controlling the locking state of the left and right clamping mechanisms, the movement of the moving part 1 of the shaft, for example, is realized.

[0142] The clamping mechanism of the present invention is described in more detail below through preferred examples.

[0143] Basic embodiment of clamping mechanism

[0144] A controllable multi-state clamping structure provided according to the present invention comprises: a moving part 1, a guide sleeve 2, a clamping part 3, and a moving sleeve 4;

[0145] The guide sleeve 2 and the moving sleeve 4 are nested and connected to form an adjustment chamber 201 in the guide sleeve 2; the moving part 1 passes through the guide hole 202 of the guide sleeve 2 and the adjustment chamber 201, and the clamping part 3 is located in the adjustment chamber 201;

[0146] The width of the regulating chamber 201 in the axial direction of the guide sleeve 2 is narrowed from wide to narrow, forming a wide end 2011 and a narrow end 2012; the moving sleeve 4 is located on one side of the wide end 2011 of the regulating chamber 201;

[0147] Through the relative movement of the guide sleeve 2 and the moving sleeve 4 in the axial direction, the structure of the regulating chamber 201 can be changed between a bidirectional locking state, a unidirectional moving state, and a bidirectional moving state;

[0148] - Bidirectional locking state: the clamping member 3 is squeezed by the moving member 1, the adjusting chamber 201 and the moving sleeve 4, locking the moving member 1 in the guide sleeve 2;

[0149] - Bidirectional motion state: at least one of the moving part 1, the wall of the adjusting chamber 201, and the moving sleeve 4 is separated from the clamp 3, and the moving part 1 can freely move toward the wide end 2011 and can freely move toward the narrow end 2012;

[0150] - One-way motion state: The one-way motion state is a critical state between the two-way locking state and the two-way motion state. In the one-way motion state, the moving part 1 can move freely toward the wide end 2011 and is locked toward the narrow end 2012.

[0151] The preferred examples of the basic embodiment are described in detail below.

[0152] Clamping mechanism embodiment 1

[0153] like Fig.15 As shown, the guide sleeve 2 is threadedly connected to the moving sleeve 4, and the moving sleeve 4 moves relative to the guide sleeve 2 in the axial direction by rotating.

[0154] The controllable multi-state clamping structure further includes: a stopper 5; the guide sleeve 2 and the moving sleeve 4 are locked by the stopper 5.

[0155] The moving part 1 moves axially relative to the guide sleeve 2.

[0156] After the stopper 5 is screwed in or removed, the moving sleeve 4 can be screwed into or out of the guide sleeve 2 through the thread to change the axial length of the adjustment chamber 201, thereby increasing or decreasing the width of the wide end 2011. When the stopper 5 is tightened or installed, the moving sleeve 4 and the guide sleeve 2 are locked and relatively fixed.

[0157] The motion sleeve 4 has a positioning member 7, wherein the positioning member 7 can be a line or a convex strip. By observing the positional relationship between the positioning member 7 and the end surface of the guide sleeve 2, it is possible to identify whether the current state is a two-way locking state, a one-way motion state, or a two-way motion state.

[0158] like Fig.16As shown, the engraved line is located on the inner side of the guide sleeve 2, the state is a two-way locked state, and the clamp 3 is a sphere, which has no space for movement. Fig.18 As shown, the engraved line is located outside the guide sleeve 2, and the state is a bidirectional motion state. The ball is not stuck, so the moving part 1 can move in both directions; wherein, the ball can be connected to the moving sleeve 4 through magnetic force or a connecting piece, thereby being out of contact with the guide sleeve 2 and / or the moving part 1. Of course, the clamping piece 3 can achieve a bidirectional motion state as long as it is out of contact with any one of the moving part 1, the guide sleeve 2, and the moving sleeve 4. Fig.17 As shown, in the process of changing from the bidirectional locking state to the bidirectional motion state, and in the process of changing from the bidirectional motion state to the bidirectional locking state, there is an intermediate critical state. In this critical state, the moving part 1 can only move toward the wide end 2011, but cannot move toward the narrow end 2012. Preferably, in the critical state, although the moving part 1, the guide sleeve 2, and the moving sleeve 4 are rigid parts, they still have a certain deformation after being subjected to force in practice, thereby achieving the critical state.

[0159] Clamping mechanism embodiment 2

[0160] Fig.19 As shown, Fig.19 for Fig.15 In this variation, the positioning member 7 is a slide groove and a buckle, which are respectively arranged on the movement sleeve 4 and the guide sleeve 2. When the buckle enters the slide groove, the state is identified as a unidirectional movement state.

[0161] Clamping mechanism embodiment 3

[0162] like Fig. 20 As shown, the controllable multi-state clamping structure further includes: a driving mechanism 6;

[0163] The sports sleeve 4 includes: a sleeve 401, a sports elastic member 402, and a limit block 403 connected in sequence; the sleeve 401 is relatively fixed to the guide sleeve 2;

[0164] In the bidirectional locking state: the clamping member 3 is squeezed by the moving member 1, the adjusting chamber 201 and the stop block 403, locking the moving member 1 in the guide sleeve 2, and the moving elastic member 402 is squeezed by the sleeve 401 and the stop block 403 in the axial direction to the maximum compression state;

[0165] In the unidirectional motion state: driven by the moving part 1 , the clamping part 3 can push the limit block 403 toward the kit 401 to compress the moving elastic part 402 , so that the moving part 1 can overcome the elastic force of the moving elastic part 402 and move freely toward the wide end 2011 .

[0166] Under the magnetic force, electric force or mechanical force applied by the driving mechanism 6 , the limit block 403 can overcome the elastic force of the moving elastic member 402 and approach the kit 401 , so that the unidirectional motion state changes to the bidirectional motion state.

[0167] A thrust elastic member 203 is connected between the clamping member 3 and the narrow end 2012 ; the thrust elastic member 203 provides elastic force for the clamping member 3 to separate from the regulating chamber 201 .

[0168] like Fig. 20 As shown, it is in a unidirectional motion state. When the moving part 1 tends to move toward the narrow end 2012, the ball is blocked by the moving part 1, the guide sleeve 2, and the moving sleeve 4, and the moving part 1 cannot move toward the narrow end 2012. When the moving part 1 moves toward the wide end 2011, driven by the moving part 1, the clamping member 3 can push the limit block 403 toward the sleeve 401 to compress the moving elastic member 402, so that the moving part 1 can overcome the elastic force of the moving elastic member 402 and move freely toward the wide end 2011.

[0169] When the stopper 403 moves toward the wide end 2011 under the drive of the driving mechanism 6, the ball can be kept out of contact with the wall of the adjusting chamber 201 of the moving part 1 or the guide sleeve 2, and the state of bidirectional movement is changed. The driving force of the driving mechanism 6 comes from magnetic force, or in a variation, it can also be mechanical force.

[0170] When the movement sleeve 4 moves to the farthest position toward the narrow end 2012, it enters a bidirectional locking state.

[0171] Clamping mechanism embodiment 4

[0172] like Fig.21 As shown, Fig. 20 Example of changes. Fig.21 In the embodiment, the driving mechanism 6 is connected between the sleeve 401 and the moving elastic member 402. The sphere is a permanent magnet or a ferromagnet.

[0173] Clamping mechanism embodiment 5

[0174] like Fig. 22 As shown, Fig.21 Example of changes. Fig. 22 In the embodiment, the driving mechanism 6 includes two magnetoelectric bodies, which attract each other and enable Fig. 22 The magnetoelectric body on the right side of the center is attracted to the left and pushes the sphere to move to the left. The sphere can be made of non-magnetic material, such as plastic or ceramic.

[0175] Clamping mechanism embodiment 6

[0176] like Fig.23 As shown, Fig.23 for Fig.15 Example of changes. Fig.23 In the embodiment, the moving part 1 moves circumferentially relative to the guide sleeve 2. Fig.23 Not shown. Fig.23 As shown in the unidirectional motion state, the moving part 1 can only rotate clockwise and cannot rotate counterclockwise. Fig.24 As shown, the state has changed from a one-way motion state to a two-way motion state.

[0177] Clamping mechanism embodiment 7

[0178] The present invention provides a combined device of controllable polymorphic clamping structures, comprising a plurality of the controllable polymorphic clamping structures; among the plurality of the controllable polymorphic clamping structures, at least two controllable polymorphic clamping structures are arranged relatively in the moving direction of the moving part 1.

[0179] like Fig.25 As shown, Fig.26 , Fig. 27 , Fig.28 As shown, after the combination, in addition to achieving a two-way locking state and a two-way motion state, it can also achieve a unidirectional motion state in two opposite directions. Fig.25 , Fig.26 , Fig. 27 In both cases, the leftward unidirectional motion and the rightward unidirectional motion can be realized. Fig.28 In the process, clockwise unidirectional motion or counterclockwise unidirectional motion can be realized.

[0180] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0181] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A linear motor, characterized in that: include: A moving part (1), a first clamping assembly (91), and a driving assembly (900); The first clamping assembly (91) comprises a clamping mechanism, wherein the clamping mechanism is capable of switching between bidirectional locking, unidirectional movement, and bidirectional movement, respectively causing the moving part (1) to be bidirectionally locked, to move freely in only one direction, or to move freely in both directions in a linear direction relative to the clamping mechanism; wherein the linear direction is the axial direction of the moving part (1); Under the drive of the driving component (900), the first clamping component (91) can reciprocate along a straight line direction; It also includes a second clamping assembly (92); wherein the second clamping assembly (901) includes a clamping mechanism, wherein the clamping mechanism can switch between two-way locking, one-way movement, and two-way movement, so that the moving part (1) can be two-way locked, one-way free movement, and two-way free movement relative to the clamping mechanism in a linear direction, respectively; The clamping mechanism comprises a controllable multi-state clamping structure; The controllable multi-state clamping structure comprises: a moving part (1), a guide sleeve (2), a clamping part (3), and a moving sleeve (4); The guide sleeve (2) and the moving sleeve (4) are nested and connected to form an adjustment chamber (201) in the guide sleeve (2); The moving part (1) passes through the guide hole (202) of the guide sleeve (2) and the adjustment chamber (201), and the clamping part (3) is located in the adjustment chamber (201); The width of the regulating chamber (201) in the axial direction of the guide sleeve (2) changes from wide to narrow, forming a wide end (2011) and a narrow end (2012); the moving sleeve (4) is located on one side of the wide end (2011) of the regulating chamber (201); By the relative movement of the guide sleeve (2) and the moving sleeve (4) in the axial direction, the structure of the regulating chamber (201) can be changed between a bidirectional locking state, a unidirectional moving state, and a bidirectional moving state; - Bidirectional locking state: the clamping member (3) is squeezed by the moving member (1), the adjusting chamber (201) and the moving sleeve (4), locking the moving member (1) in the guide sleeve (2); - Bidirectional motion state: at least one of the moving part (1), the wall of the regulating chamber (201), and the moving sleeve (4) is detached from the clamping part (3), and the moving part (1) can freely move toward the wide end (2011) and can freely move toward the narrow end (2012); - One-way motion state: The one-way motion state is a critical state between the two-way locking state and the two-way motion state. In the one-way motion state, the moving part (1) can move freely toward the wide end (2011) and is locked toward the narrow end (2012); The guide sleeve (2) and the moving sleeve (4) are threadedly connected, and the moving sleeve (4) moves relative to the guide sleeve (2) in the axial direction by rotating; Also includes: a stopper (5); The guide sleeve (2) and the moving sleeve (4) are locked by a stopper (5); It also includes: a driving mechanism (6); the sports sleeve (4) includes: a sleeve (401), a sports elastic member (402), and a limit block (403) connected in sequence; The kit (401) and the guide sleeve (2) are relatively fixed; In the bidirectional locking state: the clamping member (3) is squeezed by the moving member (1), the regulating chamber (201) and the limiting block (403), so that the moving member (1) is locked in the guide sleeve (2), and the moving elastic member (402) is squeezed in the axial direction by the sleeve (401) and the limiting block (403) to a maximum compression state; In the unidirectional motion state: driven by the moving part (1), the clamping part (3) can push the limiting block (403) toward the sleeve (401) to compress the moving elastic part (402), so that the moving part (1) can overcome the elastic force of the moving elastic part (402) and move freely toward the wide end (2011); Under the magnetic force, electric force or mechanical force applied by the driving mechanism (6), the limit block (403) can overcome the elastic force of the moving elastic member (402) and approach the sleeve (401), so that the unidirectional motion state changes to the bidirectional motion state; The driving mechanism (6) is arranged in the guide sleeve (2), in the sleeve (401), or connected between the sleeve (401) and the moving elastic member (402).

2. The linear motor according to claim 1, characterized in that: The driving component (900) comprises a first magnetoelectric body (901), a second magnetoelectric body (902), and a connecting elastic member (903); The connecting elastic member (903) is connected between the first magnetoelectric body (901) and the second magnetoelectric body (902); The first magnetoelectric body (901) is fixed relative to the ground, and the second magnetoelectric body (902) is tightly connected to the clamping mechanism; or the moving part (1) is fixed relative to the ground; wherein the first magnetoelectric body (901) and the second magnetoelectric body (902) are respectively: - Electromagnets, permanent magnets; -Permanent magnets, electromagnets; -Electromagnet, electromagnet.

3. The linear motor according to claim 1, characterized in that: The driving assembly (900) includes a permanent magnet (904), an elastic pad (905), a C-shaped coil (906), a rotating shaft (907), and a lever (908); The permanent magnet (904) is connected to the gap of the C-shaped coil (906) through an elastic pad (905); and the permanent magnet (904) can rotate around a rotating shaft (907); one end of the permanent magnet (904) is connected to the clamping mechanism through a lever (908).

4. The linear motor according to claim 1, characterized in that: The drive assembly (900) comprises: - Pneumatic assembly (909); -Hydraulic components; - a thermal expansion material component (910); - Electromagnetic components; - Electrostatic components; - Smart material components; - components made of shape memory alloys; or - Linear motor (911).

5. The linear motor according to claim 1, characterized in that: A thrust elastic member (203) is connected between the clamping member (3) and the narrow end (2012); the thrust elastic member (203) provides an elastic force for the clamping member (3) to separate from the regulating chamber (201); The moving part (1) moves axially or circumferentially relative to the guide sleeve (2).

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