CN220798042U

CN220798042U - Linear motor

Info

Publication number: CN220798042U
Application number: CN202322017562.4U
Authority: CN
Inventors: 徐渭清
Original assignee: Wantu Robot Ningbo Co ltd
Current assignee: Wantu Robot Ningbo Co ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-04-16
Anticipated expiration: 2033-07-28

Abstract

The utility model relates to a linear motor, which comprises a base, a linear guide rail, a sliding seat, a secondary component and a primary component, and is characterized in that: the bottom of the secondary assembly is provided with a connecting substrate, the cross section of the connecting substrate is trapezoidal, the base is provided with a clamping groove, the cross section of the clamping groove is designed into an inverted trapezoid matched with the connecting substrate, and the substrate of the secondary assembly is inserted and fixed in the clamping groove of the base. The trapezoidal connecting base plate is matched with the inverted trapezoidal clamping groove, so that hole site machining required by thread fixing is avoided, the risk of thread breakage and tapping during thread machining is avoided, and the machining and assembling cost is reduced; the riveting mode is adopted for fixation, so that the contact area is increased, the risk of local deformation caused by attractive force between the primary component and the secondary component during threaded fixation is avoided, and the reliability of the structure is improved.

Description

Linear motor

Technical Field

The utility model relates to the technical field of motors, in particular to a linear motor.

Background

The linear motor is widely applied to the fields of electronic and semiconductor equipment, UV spray painting industry, UV printing and dyeing industry, UV printing industry, UV glass industry, precise numerical control machine tool, high-end medical equipment, mobile phone detection industry, glass detection industry and the like. In the prior art, secondary punching is mainly adopted for secondary fixing of the linear motor, and the linear motor is fixed in a screw locking mode. The Chinese patent No. CN202111285613.0 discloses a sealed linear motor sliding table, which comprises a sliding rail, a sliding seat, a primary module and a secondary module, wherein the secondary module is fixedly connected with the bottom of the U-shaped groove through a screw. However, this fixing method has the following drawbacks: firstly, because a large suction force exists between the primary and the secondary, the secondary is easy to deform locally in a screw fixing mode, and the structure is unreliable; secondly, the number of screw hole sites is more, has increased processing cost and assembly cost.

Disclosure of utility model

The utility model aims to provide a secondary structure fixing method of a linear motor, which is reliable in structure and low in processing and assembling cost.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a linear electric motor, includes the base, sets up the linear guide on the base, sets up on linear guide and can follow linear guide relative sliding's slide, fixes the secondary assembly on the base to and fix the primary assembly on the slide, its characterized in that: the bottom of the secondary assembly is provided with a connecting substrate, the cross section of the connecting substrate is trapezoidal, the base is provided with a clamping groove, the cross section of the clamping groove is designed into an inverted trapezoid matched with the connecting substrate, and the substrate of the secondary assembly is inserted and fixed in the clamping groove of the base.

For convenient processing and assembly, preferably, the base is in a straight line strip shape, the cross section of the base is in a U shape, and the clamping groove is arranged at the bottom of the U-shaped groove of the base.

For convenient processing and assembly, preferably, the inverted trapezoid clamping groove is arranged in a penetrating mode along the length direction of the base.

In order to increase the contact area, preferably, the connection substrate of the secondary assembly is in a strip shape, the length of the connection substrate is the same as that of the base, and the connection substrate is integrally embedded in the clamping groove and fixed in a riveting mode. The fixing mode enables the contact mode of the secondary assembly and the base to be surface contact, improves the contact area, avoids the risk of local deformation caused by the attraction of the primary assembly and the secondary assembly during screw fixation, and improves the reliability of the structure.

In order to enable the sliding seat to slide relatively along the guide rails, preferably, two linear guide rails are arranged, and the two linear guide rails are respectively arranged above the two arms of the U-shaped base. When the sliding seat is used, the two ends of the sliding seat are respectively fixed on the linear guide rail, and the sliding seat can relatively slide along the linear guide rail under the magnetic force action of the primary component and the secondary component.

For a secure installation, the sub-assembly is preferably arranged entirely inside the U-shaped base. During installation, the connecting substrate with the trapezoid bottom of the secondary component is tightly attached to the clamping groove with the inverted trapezoid bottom of the U-shaped groove of the base, and deformation caused by attraction of the primary component and the secondary component is avoided.

Further, the sliding seat is arranged above the U-shaped base, and the primary component is partially or wholly embedded in the U-shaped base and is positioned above the secondary component. When the linear motor works, the sliding seat slides along the linear guide rail due to the fact that the primary component is attracted by the secondary component.

Further, the sliding seat is also provided with an encoder. The setting reason is that: when the linear motor works, high-speed pulse is sent out for positioning the linear motor.

Furthermore, the two ends of the base are also connected with end covers. The setting reason is that: the side surface of the linear motor is sealed, so that all components of the linear motor are not exposed outside.

Compared with the prior art, the utility model has the advantages that: the secondary component connecting substrate is arranged in a trapezoid shape, and the clamping groove on the base is arranged in an inverted trapezoid shape matched with the connecting substrate, so that hole site machining required by thread fixing is avoided, the risk of thread breakage and tapping during thread machining is avoided, and the machining and assembling cost is reduced; the connecting base plate and the clamping groove are fixed in a riveting mode, so that the contact area is increased, the risk of local deformation caused by attractive force between the primary component and the secondary component during threaded fixation is avoided, and the reliability of the structure is improved.

Drawings

FIG. 1 is an exploded view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

fig. 3 is a cross-sectional view of an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings. The following examples are only some of the examples of the present utility model and are merely illustrative of the present utility model and are not to be construed as limiting the utility model.

As shown in fig. 1-3, is a preferred embodiment of the present utility model. The linear motor of the embodiment comprises a base 1, a linear guide rail 3 arranged on the base 1, a sliding seat 5 arranged on the linear guide rail 3 and capable of sliding relatively along the linear guide rail 3, a secondary component 2 fixed on the base 1, and a primary component 4 fixed on the sliding seat 5, wherein the bottom of the secondary component 2 is provided with a connecting substrate 21, the cross section of the connecting substrate 21 is trapezoid, the base 1 is provided with a clamping groove 11, the cross section of the clamping groove 11 is designed into an inverted trapezoid matched with the connecting substrate 21, and the substrate of the secondary component 2 is inserted and fixed in the clamping groove 11 of the base 1. The base 1 is in a straight line strip shape, the cross section of the base is U-shaped, and the clamping groove 11 is arranged at the bottom of the U-shaped groove of the base 1. The inverted trapezoidal clamping groove 11 is penetrated along the length direction of the base 1. The connection substrate 21 of the secondary assembly 2 is in a strip shape, the length of the connection substrate is the same as that of the base 1, and the whole connection substrate 21 is embedded in the clamping groove 11 and fixed in a riveting mode. The fixing mode enables the contact mode of the secondary assembly 2 and the base 1 to be surface contact, improves the contact area, avoids the risk of local deformation caused by the attraction of the primary assembly 4 and the secondary assembly 2 during screw fixation, and improves the reliability of the structure.

In addition, the two linear guide rails 3 are arranged, the two linear guide rails 3 are respectively arranged above the two arms of the U-shaped base 1, when the magnetic force type linear guide rail is used, two ends of the sliding seat 5 are respectively fixed on the linear guide rails 3, and the sliding seat 5 can relatively slide along the linear guide rails 3 under the magnetic force action of the primary component 4 and the secondary component 2. Meanwhile, the whole secondary assembly 2 is arranged inside the U-shaped base 1, and when the installation is carried out, the trapezoid connecting substrate 21 at the bottom of the secondary assembly 2 is tightly attached to the inverted trapezoid clamping groove 11 at the bottom of the U-shaped groove of the base 1, so that the installation is firm, and the deformation caused by the attraction of the primary assembly 4 and the secondary assembly 2 is avoided. The slide 5 is arranged above the U-shaped base 1, and the primary component 4 is partially or wholly embedded in the U-shaped base 1 and is arranged above the secondary component 2. When the linear motor is in operation, the slide 5 slides along the linear guide 3 as the primary assembly 4 is attracted by the secondary assembly 2.

The slide 5 is further provided with an encoder 7, which is provided for the following reasons: when the linear motor works, high-speed pulse is sent out for positioning the linear motor. The two ends of the base 1 are also connected with end covers 6, and the arrangement reason is that: the side surface of the linear motor is sealed, so that all components of the linear motor are not exposed outside.

Claims

1. The utility model provides a linear electric motor, includes base (1), sets up linear guide (3) on base (1), sets up on linear guide (3) and can follow slide (5) of linear guide (3) relative slip to, fixes sub-subassembly (2) on base (1) to and fix primary subassembly (4) on slide (5), its characterized in that: the bottom of sub-subassembly (2) is equipped with connection base plate (21), and the transversal trapezoidal of this connection base plate (21) is provided with draw-in groove (11) on base (1), and the cross section of this draw-in groove (11) designs into the trapezoid of falling with connection base plate (21) adaptation, the base plate of sub-subassembly (2) is inserted and is established in draw-in groove (11) of fixing in base (1).

2. The linear motor of claim 1, wherein: the base (1) is in a straight line strip shape, the cross section of the base is U-shaped, and the clamping groove (11) is formed in the bottom of the U-shaped groove of the base (1).

3. The linear motor of claim 2, wherein: the inverted trapezoid clamping groove (11) is arranged in a penetrating mode along the length direction of the base (1).

4. A linear motor according to claim 3, characterized in that: the connecting substrate (21) of the secondary assembly (2) is in a strip shape, the length of the connecting substrate is the same as that of the base (1), and the connecting substrate (21) is integrally embedded in the clamping groove (11) and fixed in a riveting mode.

5. The linear motor of claim 2, wherein: the two linear guide rails (3) are arranged, and the two linear guide rails (3) are respectively arranged above the two arms of the U-shaped base (1).

6. The linear motor of claim 2, wherein: the secondary assembly (2) is integrally arranged inside the U-shaped base (1).

7. The linear motor of claim 2, wherein: the sliding seat (5) is arranged above the U-shaped base (1), and the primary component (4) is partially or wholly embedded in the U-shaped base (1) and is positioned above the secondary component (2).

8. The linear motor of claim 1, wherein: an encoder (7) is also arranged on the sliding seat (5).

9. The linear motor of claim 1, wherein: the two ends of the base (1) are also connected with end covers (6).