A moving magnet reciprocating motor

Abstract

The present invention discloses a moving magnet reciprocating motor, the main body of which is composed of a mover and a stator body. The mover includes an upper rod, a mover body and a lower rod structure, and the stator includes a side shell, an armature, a lower shell and an upper shell structure. The mover is coaxially assembled in the stator, and the mover forms an upper, middle and lower three-section coaxial long column complex with the upper rod, the mover body and the lower rod, and the stator forms an upper, middle and lower three-section coaxial long cavity tube complex with the upper shell, the armature and the lower shell. The armature is assembled in the cylindrical ring cavity framed by the upper shell, the side shell and the lower shell by fastening and pressing the upper disk ring upper surface, the outer side surface of the cylinder and the lower disk ring lower surface of the upper shell, the inner side surface of the cylindrical tube of the side shell and the upper disk ring upper surface of the lower shell; the inner surface of the top end of the upper shell, the inner surface of the upper shell, the inner surface of the armature structure, the inner surface of the lower shell and the inner surface of the bottom end of the lower shell form a cylindrical tube cavity. The invention belongs to the technical field of motors, and solves the technical problems of good controllability, long displacement, large output and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to motion driving equipment. Background Art

[0002] In many equipment, production lines, workshops, and factories such as robots, there are processes or procedures that require reciprocating motion, especially in production enterprises such as machining. This type of production process always involves linear reciprocating transmission or impact, stamping, etc. of materials and workpieces in a certain direction. At present, most of these processes are completed by rotating motors through motion form conversion, resulting in many disadvantages such as poor displacement consistency, poor motion controllability, complex mechanical structure, large size, high energy consumption, and high noise, and there are accidents such as wear, bumps, and falls on the conveyed materials and workpieces. The direct dragging of the motor will greatly improve the displacement consistency and controllability of the reciprocating motion, simplify the system structure, increase the output per unit volume, reduce energy consumption, and reduce noise, especially for the motion mechanism of the robot, these characteristics are more important. However, the existing reciprocating motors are either complex in structure or have unsatisfactory indicators such as mechanical properties and motion performance. Therefore, it is urgent to develop a reciprocating motor with a simple structure, large displacement, high efficiency, good controllability, and strong robustness. Summary of the invention

[0003] In order to realize the requirements of simple structure, large displacement, high efficiency, good controllability and strong robustness of reciprocating motors, the present invention provides a moving magnet reciprocating motor, the main body of which is composed of a mover and a stator body. The mover includes an upper rod, a mover body and a lower rod structure, and the stator includes a side shell, an armature, a lower shell and an upper shell structure. The mover is coaxially assembled in the stator, and the mover forms an upper, middle and lower three-section coaxial long column complex with the upper rod, the mover body and the lower rod, and the stator forms an upper, middle and lower three-section coaxial long cavity tube complex with the upper shell, the armature and the lower shell. The armature is assembled in the cylindrical ring cavity framed by the upper shell, the side shell and the lower shell by fastening and pressing the upper disk ring upper surface, the cylindrical outer surface and the lower disk ring lower surface with the lower disk ring lower surface of the upper shell, the cylindrical tube inner surface of the side shell and the upper disk ring upper surface of the lower shell; the top inner surface of the upper shell, the inner surface of the upper shell, the inner surface of the armature structure, the inner surface of the lower shell and the bottom inner surface of the lower shell form a cylindrical tube cavity.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The main body of the moving magnet reciprocating motor is composed of a mover and a stator body. The mover includes an upper rod, a mover body and a lower rod structure, and the stator includes a side shell, an armature, a lower shell and an upper shell structure.

[0006] The mover is coaxially assembled in the stator. The mover comprises an upper rod, a mover body and a lower rod to form a coaxial long column complex of upper, middle and lower sections. The stator comprises an upper shell, an armature and a lower shell to form a coaxial long cavity cylinder complex of upper, middle and lower sections. The armature is assembled in the cylindrical ring cavity framed by the upper shell, the side shell and the lower shell by fastening and pressing the upper disk ring upper surface, the outer side surface of the cylinder and the lower disk ring lower surface with the lower disk ring lower surface of the upper shell, the inner side surface of the cylindrical cylinder of the side shell and the upper disk ring upper surface of the lower shell; the inner surface of the top of the upper shell, the inner surface of the upper shell, the inner surface of the armature structure, the inner surface of the lower shell and the inner surface of the bottom end of the lower shell form a cylindrical cylinder cavity. The upper rod is located in the upper shell and can reciprocate, the lower rod is located in the lower shell and can reciprocate, and the armature is located in the column cavity covered by the armature with 1 / 2 of the axial length and reciprocates.

[0007] The lower shell and upper shell of the stator are made of 1Cr18Ni9Ti stainless steel casting profiles through processing, machining and other processes.

[0008] The beneficial effects of the present invention are: a reciprocating motor with simple structure, high efficiency, good controllability and strong robustness. It enables the reciprocating motion of the motor to be set and adjusted within a wide range of specifications, and can remain stable under multiple given values, and overcomes the defects of complex structure, complex production process, high manufacturing cost, etc. The motor realizes the control system of reciprocating motion with a compact and simple structure, high degree of structuring and systematization, and is easy to adjust; it is very easy to form a production process with high cost performance, and is easy to mass produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0010] Figure 1 This is a cross-sectional view of the structure of a moving magnet reciprocating motor, which is an embodiment of the present invention.

[0011] Figure 2 It is a cross-sectional view of the rotor structure of a moving magnet reciprocating motor.

[0012] Figure 3 It is a half-section view of the upper rod structure of the moving magnet reciprocating motor rotor.

[0013] Figure 4 It is a half-section view of the main structure of the rotor of a moving magnet reciprocating motor.

[0014] Figure 5 It is a half-section view of the lower rod structure of the moving magnet reciprocating motor rotor.

[0015] Figure 6 It is a front view of the side shell of the stator of the moving magnet reciprocating motor.

[0016] Figure 7 It is a top view of the side shell of the stator of the moving magnet reciprocating motor.

[0017] Figure 8 It is a half-section view of the stator armature of a moving magnet reciprocating motor.

[0018] exist Figures 1 to 7 Middle: 1. Mover, 1.1. Upper rod, 1.2. Mover body, 1.3. Lower rod, 2. Stator, 2.1. Side shell, 2.2. Armature, 2.3. Lower shell, 2.4. Upper shell.

[0019] exist Figures 2 to 5 Middle: 1.1.1. Wedge cover, 1.1.2. Transfer end, 1.1.3. Connecting rod, 1.1.4. Threaded part, 1.2.1. Magnet, 1.2.2. Base cylinder, 1.3.1. Pole shoe, 1.3.2. Nut part. 7.2. Loading arm, 7.3. Loading column, 7.4. Loading telescopic rod, 7.5. Loading suction cup, 7.4.1. Telescopic slide, 7.5.1. Loading connector.

[0020] exist Figures 6-7 Middle: 2.1.1 Screw groove.

[0021] exist Figure 8 Middle: 2.2.1. Cylinder cavity, 2.2.2. Skeleton, 2.2.3. Coil. DETAILED DESCRIPTION

[0022] exist Figure 1 In the cross-sectional view of the structure of a moving magnet reciprocating motor, one embodiment of the present invention is shown:

[0023] The main body of the moving magnet reciprocating motor is composed of a mover 1 and a stator 2. The mover 1 includes an upper rod 1.1, a mover body 1.2 and a lower rod 1.3 structure, and the stator 2 includes a side shell 2.1, an armature 2.2, a lower shell 2.3 and an upper shell 2.4 structure.

[0024] The mover 1 is coaxially assembled in the stator 2. The mover 1 comprises an upper rod 1.1, a mover body 1.2 and a lower rod 1.3 to form a coaxial long column complex of upper, middle and lower sections. The stator 2 comprises an upper shell 2.4, an armature 2.2 and a lower shell 2.3 to form a coaxial long cavity cylinder complex of upper, middle and lower sections. The armature 2.2 is assembled in the cylindrical ring cavity framed by the upper shell 2.4, the side shell 2.1 and the lower shell 2.3 by fastening and pressing the upper disk ring surface, the outer side surface of the cylinder and the lower disk ring surface of the lower shell 2.4, the inner side surface of the cylinder of the side shell 2.1 and the upper disk ring surface of the lower shell 2.3 with its upper disk ring surface, the outer side surface of the cylinder and the lower disk ring surface. The upper disk ring surface of the armature 2.2 is assembled in the cylindrical ring cavity framed by the upper shell 2.4, the side shell 2.1 and the lower shell 2.3; the inner surface of the top of the upper shell 2.4, the inner surface of the upper shell 2.4, the inner surface of the armature 2.2 structure, the inner surface of the lower shell 2.3 and the inner surface of the bottom end of the lower shell 2.3 form a cylindrical cylinder cavity. The upper rod 1.1 is located and can reciprocate in the upper shell 2.4, the lower rod 1.3 is located and can reciprocate in the lower shell 2.3, and the armature 2.2 is located and reciprocates in the column cavity covered by the armature 2.2 with 1 / 2 axial length.

[0025] The lower shell 2.3 and the upper shell 2.4 of the stator 2 are both made of 1Cr18Ni9Ti stainless steel casting profiles through processing, machining and other processes.

[0026] exist Figure 2 The cross-sectional view of the moving magnet reciprocating motor rotor structure shown in FIG. Figure 3 The half-section view of the upper rod structure of the moving magnet reciprocating motor shown in FIG. Figure 4 The half-section view of the main structure of the moving magnet reciprocating motor rotor shown in FIG. Figure 5 In the half-section view of the lower rod structure of the moving magnet reciprocating motor mover shown in the figure: the mover 1 is embedded in the middle mover body 1.2 through the upper rod 1.1 and the lower rod 1.3, and the two ends are buckled to realize the overall fastening structure. The upper rod 1.1 is a full-length cylindrical rod structure with a transmission end 1.1.2 milled on the upper end, a wedge cover 1.1.1 machined on the upper end in the middle, and a connecting rod 1.1.3 machined on the lower section; wherein the wedge cover 1.1.1 is a truncated cone ring disk structure. The mover body 1.2 is composed of tile-shaped magnetic steel 1.2.1 in line and parallel, fastened and attached to the outer side of the cylindrical barrel wall of the cylindrical base barrel 1.2.2. The lower rod 1.3 is a full-length cylindrical cup-rod structure with a pole shoe 1.3.1 machined on the upper section: its pole shoe 1.3.1 is a cup-shaped structure that becomes thinner from the bottom to the edge. The base tube 1.2.2 of the mover body 1.2 cooperates with the truncated cone side of the wedge cover 1.1.1 and the truncated cone outer side of the pole shoe 1.3.1 through the inner side of its cylindrical wall to achieve fastening of the two ends of the mover body 1.2 to the upper rod 1.1 and the lower rod 1.3.

[0027] exist Figure 3 The upper rod structure half-section view of the moving magnet reciprocating motor shown in FIG. Figure 5 In the half-section view of the lower rod structure of the moving magnet reciprocating motor rotor shown:

[0028] The lower end of the connecting rod 1.1.3 of the upper rod 1.1 is machined with a threaded portion 1.1.4 for screwing with the nut portion 1.3.2 of the lower rod 1.3. The upper rod 1.1 is made of 1Cr18Ni9Ti type stainless steel material through processing, machining and other processes.

[0029] The bottom center of the pole shoe 1.3.1 of the lower rod 1.3 is formed with a downward concave nut portion 1.3.2 for tightening with the nut portion of the lower rod 1.3. The nut portion 1.3.2 is made of 45# steel material through processing, machining and other processes.

[0030] exist Figure 4 The half-section view of the main structure of the moving magnet reciprocating motor rotor shown in FIG. Figure 5 In the half-section view of the lower rod structure of the moving magnet reciprocating motor rotor shown:

[0031] The tile-shaped magnetic steel 1.2.1 of the mover body 1.2 is a rectangular coaxial arc side body, with the inner and outer arc surfaces parallel, and is fastened and pasted to the outer side of the cylindrical barrel wall of the cylindrical barrel base 1.2.2 in a straight line and parallel manner. The magnetic steel 1.2.1 tiles are arranged tangentially and staggered; among the four rows, the two rows are pasted with four pieces of equal length, and the other two adjacent rows are pasted with five pieces of half the length of the two end pieces and the remaining three pieces of equal length. All magnetic steel 1.2.1 tiles are pasted with the polarity of the N pole facing the axis. The magnetic steel 1.2.1 tiles are made of neodymium iron boron permanent magnet material and magnetized after electrocuting and other machining processes.

[0032] The inner wall of the base tube 1.2.2 of the mover body 1.2 is divided into three sections, the inner side surface of the upper end is a truncated cone inner side surface that matches the truncated cone side surface of the wedge cover 1.1.1 of the upper rod 1.1; the inner side surface of the middle upper section is a cylindrical inner side surface; the inner side surface of the lower section is a high truncated cone inner side surface that matches the truncated cone outer side surface of the tank-shaped structure of the pole shoe 1.3.1 of the lower rod 1.3. The base tube 1.2.2 is made of DT4C pure iron material through processing, machining, etc.

[0033] exist Figure 6 The side shell front view of the moving magnet reciprocating motor stator shown in FIG. Figure 7 In the top view of the side shell of the moving magnet reciprocating motor stator shown in the figure: the side shell 2.1 is a tile-shaped rectangular coaxial arc side body, the inner and outer arc surfaces are parallel, each piece occupies a 90° coverage angle arc, and the four pieces are combined to form a cylindrical tube structure. The two arc end side vertical surfaces of each side shell 2.1 are milled with screw grooves 2.1.1 for passing the stator housing assembly screw; the screw grooves 2.1.1 are semi-cylindrical through grooves. The side shell 2.1 is made of low-carbon steel material.

[0034] exist Figure 8 In the half-section view of the stator armature of the moving magnet reciprocating motor shown in the figure: the coil 2.2.3 of the stator armature 2.2 is flatly layered and densely wound in the frame ring groove of the skeleton 2.2.2, and its inlet and outlet ends are both led out from the lower lead holes. The skeleton 2.2.2 is a hollow frame ring groove structure made of high-strength engineering plastic material, and the hollow part is a cylinder cavity 2.2.1 for the movable body 1.2 to freely reciprocate axially.

[0035] exist Figure 1 The structure of a moving magnet reciprocating motor is shown in a cross-sectional view and Figure 8In the half-section view of the stator armature of the moving magnet reciprocating motor shown in the figure: the armature 2.2 is assembled in the cylindrical ring cavity framed by the upper shell 2.4, the side shell 2.1 and the lower shell 2.3 by tightening and pressing the upper disc ring upper surface of its skeleton 2.2.2, the cylindrical outer side surface of the skeleton 2.2.2 and the lower disc ring lower surface of the skeleton 2.2.2 with the lower disc ring lower surface of the upper shell 2.4, the cylindrical tube inner surface of the side shell 2.1 and the upper disc ring upper surface of the lower shell 2.3; the top inner surface of the upper shell 2.4, the inner surface of the upper shell 2.4, the inner surface of the tube cavity 2.2.1 of the armature 2.2, the inner surface of the lower shell 2.3 and the inner surface of the bottom end of the lower shell 2.3 form a cylindrical tube cavity.

[0036] The above implementation modes are only for illustrating the technical idea of ​​the present invention and are not used to limit the protection scope of the present invention. Any modification, equivalent substitution, improvement, etc. made on the basis of the technical scheme of the present invention in accordance with the technical idea proposed by the present invention shall be included in the protection scope of the present invention.

Claims

1. A moving magnet reciprocating motor, the main body of which is composed of a mover and a stator body, characterized in that the mover It includes an upper rod, a mover body and a lower rod structure, and the stator includes a side shell, an armature, a lower shell and an upper shell structure; The mover is coaxially assembled in the stator. The upper rod, the mover body and the lower rod of the mover form an upper, middle and lower three-section coaxial long column complex. The upper shell, the armature and the lower shell of the stator form an upper, middle and lower three-section coaxial long cavity tube complex. The armature is assembled in the cylindrical ring cavity framed by the upper shell, the side shell and the lower shell by tightening and pressing the upper disk ring surface, the outer side surface of the cylinder and the lower disk ring of the lower shell with the lower disk ring of the upper shell, the inner side surface of the cylindrical tube of the side shell and the upper disk ring surface of the lower shell. The inner surface of the top of the upper shell, the inner surface of the upper shell, the inner surface of the armature structure, the inner surface of the lower shell and the inner surface of the bottom end of the lower shell form a cylindrical tube cavity. The upper rod is located in the upper shell and can reciprocate. The lower rod is located in the lower shell and can reciprocate. The armature is located in the column cavity covered by the armature with 1 / 2 of the axial length and reciprocates. The lower shell and upper shell of the stator are made of 1Cr18Ni9Ti stainless steel casting profiles through processing and machining; The mover is embedded in the mover body in the middle through the upper rod at the top and the lower rod at the bottom, and the two ends are buckled with the mover body in the middle to realize the overall fastening structure; the upper rod is a full-length cylindrical rod-shaped structure with a transmission end milled on the upper end, an upper end with a wedge cover machined in the middle, and a connecting rod machined in the lower section; the wedge cover is a truncated cone ring disk structure; the mover body is composed of tile-shaped magnetic steels that are in line and parallel and fastened to the outer side of the cylindrical wall of the cylindrical base tube; the lower rod is a full-length cylindrical cup-rod-shaped structure with a pole shoe machined on the upper section: its pole shoe is a cup-shaped structure that becomes thinner from the bottom to the edge of the mouth; the base tube of the mover body cooperates with the inner side of its cylindrical wall with the truncated cone side of the wedge cover and the truncated cone outer side of the pole shoe to realize the fastening of the two ends of the mover body to the upper rod and the lower rod; The tile-shaped magnetic steel of the mover body is a rectangular coaxial arc side body, the inner and outer arc surfaces are parallel, and are fastened and pasted to the outer side of the cylindrical base tube wall in a straight line and parallel manner, and the magnetic steel tiles are tangentially staggered; among the four rows, the two rows at intervals are four pieces of equal length, and the other two adjacent rows are five pieces of equal length, with half the length of the two end pieces and the remaining three pieces of equal length; all magnetic steel tiles are pasted with the polarity of the N pole facing the axis; the magnetic steel tiles are made of neodymium iron boron permanent magnet material after being magnetized by electric cutting machine processing; The inner wall surface of the base cylinder of the mover body is divided into three sections. The inner side surface of the upper end is a truncated cone-shaped inner side surface that matches the wedge cover truncated cone side surface of the upper rod; the inner side surface of the middle and upper section is a cylindrical inner side surface; the inner side surface of the lower section is a high truncated cone-shaped inner side surface that matches the truncated cone-shaped outer side surface of the pole shoe pot-shaped structure part of the lower rod; the base cylinder is made of DT4C pure iron material through processing and machining.

2. The moving magnet reciprocating motor according to claim 1, characterized in that The lower end of the connecting rod of the upper rod is machined with a threaded portion for tightening with the nut portion of the lower rod; the upper rod is made of 1Cr18Ni9Ti stainless steel material through processing and machining process; The center of the bottom of the pole shoe of the lower rod is machined with a downward concave nut portion for tightening with the nut portion of the lower rod; the nut portion is made of 45 steel material through processing and machining technology.

3. The moving magnet reciprocating motor according to claim 1, characterized in that: The side shell is a tile-shaped rectangular coaxial arc side body, with the inner and outer arc surfaces parallel, each piece occupies a 90° coverage angle arc, and four pieces are combined to form a cylindrical tube structure; the two arc end side vertical surfaces of each side shell are milled with screw grooves for passing the stator housing assembly screw; the screw grooves are semi-cylindrical through grooves; the side shells are made of low-carbon steel.

4. The moving magnet reciprocating motor according to claim 1, characterized in that: The coils of the stator armature are flatly laid and densely wound in the ring grooves of the skeleton frame, and their inlet and outlet ends are both led out from the lower lead holes; the skeleton is a hollow frame ring groove structure made of high-strength engineering plastic material, and the hollow part is a cylindrical cavity for the movable body to freely reciprocate axially.

5. The moving magnet reciprocating motor according to claim 1, characterized in that: The armature is assembled in the cylindrical ring cavity framed by the upper shell, the side shell and the lower shell by fastening and pressing the upper disk ring surface of its frame, the cylindrical outer side surface of the frame and the lower disk ring bottom of the frame with the lower disk ring bottom of the upper shell, the cylindrical inner side surface of the side shell and the upper disk ring surface of the lower shell; the top inner surface of the upper shell, the inner side surface of the upper shell, the inner side surface of the barrel cavity of the armature, the inner side surface of the lower shell and the bottom inner surface of the lower shell form a cylindrical barrel cavity.

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