Linear motor

Abstract

The utility model relates to the technical field of linear motors, in particular to a linear motor, which comprises a base and a plurality of groups of stator magnets arranged in the base. A guide plate is arranged at the bottoms of the multiple sets of stator magnets, multiple sets of guide grooves are formed in the surface of the guide plate, the multiple sets of guide grooves are distributed in a radial shape, and guide rods are slidably installed in the multiple sets of guide grooves; supporting assemblies are arranged at the tops of the multiple groups of guide rods, and the supporting assemblies are further arranged at the bottoms of the multiple groups of stator magnets; a driving assembly is arranged at the bottom of the guide plate, and the driving assembly is further arranged in the base; the driving assembly is arranged at the bottom of the guide plate and can drive the guide plate to move front and back, so that the guide groove formed in the guide plate and the guide rod in the guide groove are utilized to drive the supporting assembly at the top of the guide rod to move while the guide plate moves, and the position of the stator magnet on the supporting assembly is adjusted; therefore, the spacing adjustment of multiple groups of stator magnets is realized, and the operation and the use are very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear motor technical field, concretely relates to a linear motor. BACKGROUND

[0002] Linear motor is a kind of motor that can directly convert electric energy into linear motion, unlike traditional rotary motor, it provides higher precision and efficiency by eliminating intermediate transmission device, linear motor is usually composed of stator, mover and feedback device etc., mover is driven to move along linear direction by electromagnetic force, stator usually has electromagnetic winding, and magnetic field is generated by the change of electric current, in some high-precision positioning control occasions, such as numerical control equipment, precision handling system, laser cutting machine etc., the interval of stator magnet is usually designed to be small, because smaller interval can enhance the density and interaction of magnetic field, thereby providing larger thrust, and in some high-speed motion occasions, such as high-speed handling equipment system in automatic production line, larger distance between stator magnets helps to reduce the mutual influence of magnetic field, reduce friction force when high-speed motion, avoid instability and heat generation caused by too strong magnetic field, and larger interval enables motor to run more stably at higher speed, reduces overload and out-of-step phenomenon.

[0003] But the existing linear motor, stator magnet is directly fixed into the base or shell of motor by bolt or corresponding fixing part, when the distance between stator magnets needs to be adjusted, stator magnet is manually disassembled, then position calibration is carried out again, and then installation is carried out, to complete the adjustment of the interval of stator magnets, operation is relatively more cumbersome, time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of linear motor, by being provided with driving assembly at the bottom of guide plate, guide plate can be moved back and forth, so as to utilize the guide slot of guide plate and the guide rod in the guide slot, when guide plate moves, the support assembly on the top of guide rod is moved, so as to adjust the position of stator magnet on support assembly, realize the interval adjustment of multiple stator magnets, and it is very convenient to operate and use.

[0005] The utility model adopts the following technical scheme: a kind of linear motor, including base and multiple stator magnets being set in the inside of base;

[0006] Multiple stator magnets bottom is provided with guide plate, the surface of guide plate is provided with multiple guide slots, and multiple guide slots are distributed in radial, and multiple guide slots are all slidably installed with guide rod in the inside;

[0007] The top of the plurality of guide rods is provided with a supporting assembly, and the supporting assembly is also arranged at the bottom of the plurality of stator magnets; the bottom of the guide plate is provided with a driving assembly, and the driving assembly is also arranged in the interior of the base;

[0008] The supporting assembly comprises a plurality of insulating fixing frames fixedly connected to the top of the plurality of guide rods, a plurality of sliding sleeves fixedly installed at the bottom of the plurality of insulating fixing frames, and two groups of sliding rails slidably connected to the plurality of sliding sleeves and fixedly installed on the side wall of the inner cavity of the base.

[0009] The driving assembly comprises two groups of sliding grooves formed in the side wall of the inner cavity of the base, and two groups of sliding strips slidably installed on the side wall of the inner cavity of the two groups of sliding grooves and fixedly installed on the surface of the guide plate on the side close to each other.

[0010] Further, the top of the plurality of insulating fixing frames is fixedly connected to the bottom of the stator magnet, and the top of the insulating fixing frame at the two ends of the two groups of sliding rails is also fixedly installed with a side baffle.

[0011] Further, the bottom of the guide plate is also fixedly installed with a threaded sleeve, the inner cavity side wall of the threaded sleeve is threadedly connected with a lead screw, one end of the lead screw is rotatably installed on the inner cavity side wall of the base, and the other end of the lead screw is rotatably penetrated through the base.

[0012] Further, one side of the base is also fixedly installed with a rotary motor, and the rotary motor is fixedly connected with the one end of the lead screw penetrating through the base through an output shaft.

[0013] The beneficial effects of the present application are as follows:

[0014] By arranging the driving assembly at the bottom of the guide plate, the guide plate can be moved forward and backward, so that the guide groove arranged on the guide plate and the guide rod in the guide groove can be used, and the guide plate can be moved while driving the supporting assembly at the top of the guide rod to move, so that the position of the stator magnet on the supporting assembly can be adjusted, the distance between the plurality of stator magnets can be adjusted, and the operation and use are very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 It is a structural schematic diagram of the present application;

[0017] Figure 2 It is an internal structure schematic diagram of the base in the present application;

[0018] Figure 3 It is the structure schematic view of the guide plate, the screw rod and the related components in the utility model.

[0019] Figure 4 It is the structure schematic view of the guide plate, the screw rod and the related components in the utility model.

[0020] The reference numerals in the drawing respectively represent: 1, base; 2, rotating motor; 3, stator magnet; 4, side baffle; 5, slide rail; 6, sliding sleeve; 7, insulation fixing frame; 8, screw rod; 9, threaded sleeve; 10, guide plate; 11, guide groove; 12, guide rod; 13, sliding groove; 14, sliding bar. DETAILED DESCRIPTION

[0021] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] The utility model will be further described below in conjunction with the embodiments.

[0023] A linear motor, including base 1 and the multiple groups of stator magnets 3 that are arranged in the base 1, the multiple groups of stator magnets 3 bottom are provided with guide plate 10, the surface of guide plate 10 is provided with multiple guide grooves 11, and multiple guide grooves 11 are radially distributed, the inside of multiple guide grooves 11 are all slidably installed with guide rod 12, wherein, the top of multiple guide rods 12 is provided with support assembly, and support assembly is also arranged at the bottom of multiple stator magnets 3, wherein, the bottom of guide plate 10 is provided with drive assembly, and drive assembly is also arranged in the inside of base 1;

[0024] Specifically, when the linear motor faces different use requirements and situations, the spacing of the stator magnets 3 in the base 1 needs to be adjusted, the drive assembly arranged at the bottom of the guide plate 10 can drive the guide plate 10 to move, and through the multiple guide grooves 11 arranged in the guide plate 10 and the guiding effect of the guide rods 12 in the guide grooves 11, the support assembly at the top of the guide rods 12 can be moved while the guide plate 10 moves, so that the multiple stator magnets 3 on the support assembly can be moved, thereby completing the adjustment of the different spacings of the multiple stator magnets 3.

[0025] The support assembly comprises a plurality of groups of guide rods 12, the top of each group of guide rods 12 is fixedly connected with an insulating fixing frame 7, the bottom of each insulating fixing frame 7 is fixedly installed with a sliding sleeve 6, two groups of sliding rails 5 are slidably connected with the sliding sleeves 6, and the inner cavity side wall of the base 1 is fixedly installed with the two groups of sliding rails 5, the top of each insulating fixing frame 7 is fixedly connected with the bottom of a stator magnet 3, and the top of the insulating fixing frame 7 located at the two ends of the two groups of sliding rails 5 is further fixedly installed with a side baffle 4;

[0026] The driving assembly comprises two groups of sliding grooves 13 formed in the inner cavity side wall of the base 1, the inner cavity side wall of each group of sliding grooves 13 is slidably installed with a sliding strip 14, and the side, close to each other, of the two groups of sliding strips 14 is fixedly installed on the surface of a guide plate 10, the bottom of the guide plate 10 is further fixedly installed with a threaded sleeve 9, the inner cavity side wall of the threaded sleeve 9 is threadedly connected with a lead screw 8, one end of the lead screw 8 is rotatably installed on the inner cavity side wall of the base 1, and the other end of the lead screw 8 is rotatably penetrated through the base 1, and the side of the base 1 is further fixedly installed with a rotary motor 2, and the rotary motor 2 is fixedly connected with the one end of the lead screw 8 penetrated through the base 1 through an output shaft;

[0027] Specifically, the rotary motor 2 fixedly installed on the side of the base 1 is output, which can drive the lead screw 8 in the base 1 to rotate, the guide plate 10 is guided by the two groups of sliding grooves 13 formed in the base 1 and the sliding strips 14 in the sliding grooves 13, so that the guide plate 10 can be moved through the threaded sleeve 9 while the lead screw 8 rotates, the insulating fixing frame 7 is guided by the sliding rails 5 and the sliding sleeves 6, so that the insulating fixing frame 7 can be moved through the plurality of guide rods 12, thereby achieving the adjustment of the spacing of the plurality of stator magnets 3, and the side baffles 4 installed on the top of the insulating fixing frame 7 at the two ends of the sliding rails 5 can limit the linear motor during linear motion, preventing the motor sliding block from derailing during operation.

[0028] The working principle of the utility model:

[0029] When the linear motor needs to adjust the spacing of the stator magnets 3 in the base 1, the rotary motor 2 fixedly installed on the side of the base 1 is output, which can drive the lead screw 8 in the base 1 to rotate, the guide plate 10 is guided by the two groups of sliding grooves 13 formed in the base 1 and the sliding strips 14 in the sliding grooves 13, so that the guide plate 10 can be moved through the threaded sleeve 9 while the lead screw 8 rotates, the guide plate 10 is formed with a plurality of guide grooves 11, and the guide rods 12 in the guide grooves 11 guide the guide plate 10 to move, the insulating fixing frame 7 is guided by the sliding rails 5 and the sliding sleeves 6, so that the insulating fixing frame 7 can be moved through the plurality of guide rods 12 while the guide plate 10 moves, thereby achieving the adjustment of the spacing of the plurality of stator magnets 3, and the side baffles 4 installed on the top of the insulating fixing frame 7 at the two ends of the sliding rails 5 can limit the linear motor during linear motion, preventing the motor sliding block from derailing during operation.

[0030] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A linear motor, characterized in that, The utility model relates to a kind of motor, including: Base (1) and the multiple groups of stator magnets (3) arranged in the inside of base (1); Multiple groups of stator magnets (3) bottom is provided with guide plate (10), the surface of guide plate (10) is opened with multiple groups of guide grooves (11), and multiple groups of guide grooves (11) are radially distributed, and the inside of multiple groups of guide grooves (11) is slidably installed with guide rod (12); Multiple groups of guide rod (12) top is provided with support assembly, and support assembly is arranged in the bottom of multiple groups of stator magnets (3);Guide plate (10) bottom is provided with drive assembly, and drive assembly is arranged in the inside of base (1); Support assembly includes the insulation fixed frame (7) that multiple groups of guide rod (12) top is fixedly connected, multiple groups of insulation fixed frame (7) bottom is fixedly installed with sliding sleeve (6), and two groups of slide rails (5) are slidably connected with multiple groups of sliding sleeve (6), and two groups of slide rails (5) are fixedly installed in the inner cavity side wall of base (1); Drive assembly includes the two groups of slide grooves (13) that the inner cavity side wall of base (1) is opened, and the inner cavity side wall of two groups of slide grooves (13) is slidably installed with slide bar (14), and two groups of slide bar (14) are fixedly installed on the surface of guide plate (10) on the side of each other.

2. A linear motor according to claim 1, characterised in that Multiple groups of insulation fixed frame (7) top is fixedly connected with the bottom of stator magnet (3);The top of insulation fixed frame (7) at both ends of two groups of slide rails (5) is also fixedly installed with side baffle (4).

3. A linear motor according to claim 1, wherein Guide plate (10) bottom is also fixedly installed with threaded sleeve (9), the inner cavity side wall of threaded sleeve (9) is threadedly connected with screw rod (8), one end of screw rod (8) is rotatably installed in the inner cavity side wall of base (1), and the other end of screw rod (8) is rotatably through base (1).

4. A linear motor according to claim 3, wherein One side of base (1) is also fixedly installed with rotary motor (2), and rotary motor (2) is fixedly connected with the one end of screw rod (8) through output shaft and passes through base (1).

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