Glue pouring clamp for rotor of linear motor

By designing a linear motor mover dispensing fixture, the problem of excessive air bubbles during the dispensing process was solved, achieving effective glue distribution and air removal, thus improving dispensing efficiency and shortening vacuum degassing time.

CN223928204UActive Publication Date: 2026-02-17NAKAMURA SEIKI (WUXI) CO LTD
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Patent Information

Application Number
CN202520497077.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-02-17
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

The existing linear motor mover potting process generates a lot of air bubbles, resulting in a long time for subsequent vacuum degassing.

Method used

Design a linear motor actuator glue-filling fixture, including a front side plate, a rear side plate, a left side plate, a right side plate, an upper end plate, and a lower end plate. It is equipped with a glue-filling port, a vent hole, and a lead wire hole, and is equipped with a positioning component to clamp the silicon steel sheet, ensuring that the glue fills the gap and effectively vents the air.

Benefits of technology

Reduce residual gas in the potting cavity, shorten vacuum degassing time, and improve potting efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of linear motor production corollary equipment, and provides a rotor glue pouring clamp of a linear motor, which comprises a front side plate, a rear side plate, a left side plate, a right side plate, an upper end plate and a lower end plate, the motor is characterized in that the front side plate is attached to the bottom surface of an iron core of the rotor and is fixedly connected with a mounting strip embedded with the iron core through a locking piece, and comb teeth of the iron core are vertically arranged; the left side plate and the right side plate are attached to the left side wall and the right side wall of the iron core respectively. The upper end plate and the lower end plate are arranged at intervals with the front side wall and the rear side wall of the iron core respectively, the upper end plate is provided with an exhaust hole and a lead hole, and the lower end plate is provided with a glue pouring port. According to the utility model, the defects in the prior art are overcome, the design is reasonable, the use is convenient, and the technical problems that more bubbles are generated when the rotor of the existing linear motor is encapsulated, and the subsequent vacuum degassing treatment time is long are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of supporting equipment for linear motor production, specifically to a glue-filling fixture for the mover of a linear motor. Background Technology

[0002] The mover of a linear motor mainly includes an iron core, several coils sleeved on the comb teeth of the iron core, a fixed coil and iron core, and a potting structure to prevent exposure. The iron core is composed of several stacked silicon steel sheets, with a pair of mounting strips inserted at the bottom of the silicon steel sheet assembly. In existing technology, potting this mover generates a large number of air bubbles. Although this can be addressed through subsequent vacuum degassing, it prolongs the overall production time.

[0003] Therefore, we propose a glue-potting fixture for the mover of a linear motor. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a potting fixture for the mover of a linear motor, which overcomes the deficiencies of existing technologies, is reasonably designed, and is easy to use. It solves the technical problem that existing linear motors generate a lot of air bubbles during the potting process and have a long subsequent vacuum degassing time.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A linear motor mover potting fixture includes a front side plate, a rear side plate, a left side plate, and a right side plate surrounding the perimeter, and an upper end plate and a lower end plate sealing the upper and lower openings, characterized in that:

[0009] The front side plate is attached to the bottom surface of the iron core of the mover and is fixedly connected to the mounting strip of the embedded iron core by a locking component. The comb teeth of the iron core are arranged vertically.

[0010] The left and right side plates are respectively attached to the left and right side walls of the iron core;

[0011] The upper end plate and the lower end plate are respectively spaced apart from the front and rear side walls of the iron core. The upper end plate is provided with an exhaust hole and a lead wire hole, and the lower end plate is provided with a glue filling port.

[0012] Furthermore, the rear side plate is spaced apart from the upper end face of the iron core.

[0013] Furthermore, the moving part potting fixture also includes a positioning assembly, which includes a reference plate and a pressure plate. The reference plate has an L-shaped cross-section. The lateral portion of the reference plate is detachably connected to the lower end of the front side plate via a locking member. The upper end of its longitudinal portion forms a horizontally set reference surface. The pressure plate has an L-shaped cross-section. The lateral portion of the pressure plate is slidably mounted on a pair of guide members at the upper end of the front side plate. The lower end of its longitudinal portion forms a pressing part. A spring is sleeved on the pair of guide members. The spring is used to press the pressure plate downward.

[0014] Furthermore, the pressing part is provided in three parts and is located at both ends and the middle part of the longitudinal part of the pressing plate.

[0015] Furthermore, the guide component is a guide bolt, which passes through the transverse portion of the pressure plate and is threaded to the upper end of the front side plate. The upper and lower ends of the spring abut against the hexagonal head of the guide bolt and the transverse portion of the pressure plate, respectively.

[0016] (III) Beneficial Effects

[0017] This utility model provides a glue-potting fixture for the mover of a linear motor, which has the following advantages:

[0018] 1. The glue inlet is located on the lower end plate. During the glue filling process, the glue gradually fills the gap between the lower end plate and the iron core, and then gradually diffuses upward from the gap between the iron core and each side plate and the gap between its own comb teeth. The air in the fixture can be effectively discharged from the lead hole and vent hole of the upper end plate, reducing the gas residue in the potting cavity.

[0019] 2. The fixture is designed with a positioning component mainly composed of a reference plate and a pressure plate to clamp the silicon steel sheets stacked on the upper and lower layers of the iron core, so as to avoid residual air between the silicon steel sheets, thereby further reducing the residual gas in the potting cavity and reducing the subsequent vacuum degassing processing time. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0021] Figure 2 This is a first-person perspective exploded structural diagram of the present invention;

[0022] Figure 3 This is a second-view exploded structural diagram of the present invention;

[0023] Figure 4 This is a third-view structural diagram of the positioning component and the iron core in this utility model.

[0024] Figure 5 This is a fourth-view structural diagram of the positioning component and the iron core in this utility model.

[0025] Figure 6 This is a third-view exploded structural diagram of the positioning component and the iron core in this utility model.

[0026] In the picture:

[0027] P1, Iron core; P11, Mounting slot; P12, Comb teeth; P2, Mounting strip; P3, Coil; 1, Upper end plate; 1a, Lead hole; 2, Lower end plate; 2a, Annular sealing groove; 2b, Glue filling port; 3, Front side plate; 4, Rear side plate; 5, Left side plate; 6, Right side plate; 6a, Straight sealing groove; 7, Pressure plate; 8, Guide bolt; 9, Spring; 10, Base plate; 11, Locking bolt. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] See attached document Figure 1-6 A linear motor mover potting fixture includes a front side plate 3, a rear side plate 4, a left side plate 5, and a right side plate 6 surrounding the perimeter, and an upper end plate 1 and a lower end plate 2 with openings at the top and bottom of the cover (the outer shell formed by the front, rear, left, and right side plates 6).

[0030] The inner wall of the front side plate 3 is attached to the bottom surface of the iron core P1 of the mover and is fixedly connected to the mounting strip P2 of the embedded iron core P1 (in the bottom mounting groove P11) by a locking member. The comb teeth P12 of the iron core P1 (each comb tooth P12 is fitted with a coil P3) are set vertically.

[0031] The left side plate 5 and the right side plate 6 are respectively attached to the left and right side walls of the iron core P1.

[0032] The rear side plate 4 is spaced apart from the upper end face of the iron core P1. The upper end plate 1 and the lower end plate 2 are spaced apart from the front and rear side walls of the iron core P1, respectively. The upper end plate 1 is provided with an exhaust hole and a lead wire hole 1a, and the lower end plate 2 is provided with a glue filling port 2b.

[0033] In this embodiment, annular sealing grooves 2a are provided on the inner sidewalls of both the upper end plate 1 and the lower end plate 2 (see Appendix). Figure 3The glue-filling port 2b of the lower end plate 2 is specifically opened on the side and will pass through the annular sealing groove 2a, resulting in the annular sealing groove 2a not being a closed ring structure. The left side plate 5 and the rear side plate 4 are both provided with vertically arranged straight sealing grooves 6a that run through the top and bottom. Both the annular sealing groove 2a and the straight sealing groove 6a are equipped with sealing gaskets. After assembly, the upper and lower ends of the front side plate 3, rear side plate 4, left side plate 5, and right side plate 6 are respectively sealed and fitted with the four sides of the annular sealing gaskets embedded in the upper end plate 1 and the lower end plate 2. The left and right ends of the inner sidewalls of the front side plate 3 and the rear side plate 4 are respectively fitted with the straight sealing gaskets embedded in the left side plate 5 and the right side plate 6. A set of vertical long bolts at the front and rear passes through the upper end plate 1 and the front side plate 3 / rear side plate 4 and is threaded and locked to the lower end plate 2. A set of horizontal long bolts on the left and right sides (the above-mentioned vertical and horizontal long bolts are not shown in the figure and are existing technology) passes through the front side plate 3 and the left side plate 5 / right side plate 6 and is threaded and locked to the rear side plate 4, forming a stable and sealed glue-filling cavity.

[0034] In this embodiment, the moving part potting fixture further includes a positioning component, which includes a reference plate 10 and a pressure plate 7. The reference plate 10 has an L-shaped cross-section. The horizontal part of the reference plate 10 is detachably connected to the lower end of the front side plate 3 through a locking member. The upper end of its vertical part forms a horizontally set reference surface. The pressure plate 7 has an L-shaped cross-section. The horizontal part of the pressure plate 7 is slidably mounted on a pair of guide members at the upper end of the front side plate 3. The lower end of its vertical part forms a pressing part. A spring 9 is sleeved on the pair of guide members. The spring 9 is used to press the pressure plate 7 downward.

[0035] Specifically, the pressing part has three sections, located at both ends and the middle of the longitudinal section of the pressure plate 7. The main body of the pressing part is columnar, and its end that is in close contact with the iron core P1 is hemispherical. The guide component is a guide bolt 8, which passes through the transverse section of the pressure plate 7 and is threaded to the upper end of the front side plate 3. The upper and lower ends of the spring 9 abut against the hexagonal head of the guide bolt 8 and the transverse section of the pressure plate 7, respectively. By turning the bolt, the pressing force of the pressing part can be adjusted, which is very convenient.

[0036] In this embodiment, the locking component is a locking bolt 11, and a pair of mounting strips P2 embedded in the bottom of the iron core P1 are fixedly connected to the front side plate 3 by the locking bolt 11.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mover glue-filling clamp of a linear motor, comprising a front side plate, a rear side plate, a left side plate and a right side plate enclosed around, an upper end plate and a lower end plate covering the upper and lower openings, characterized in that: the front side plate is attached to the bottom surface of the core of the mover and is fixedly connected to the mounting strip of the embedded core through locking members, and the comb teeth of the core are vertically arranged; the left side plate and the right side plate are respectively attached to the left and right side walls of the core; the upper end plate and the lower end plate are respectively arranged at intervals with the front and rear side walls of the core, the upper end plate is provided with exhaust holes and lead holes, and the lower end plate is provided with glue-filling holes.

2. The mover potting clamp of a linear motor of claim 1, wherein: the rear side plate is arranged at intervals with the upper end surface of the core.

3. The mover potting clamp of a linear motor according to claim 1 or 2, characterized in that: The mover glue-filling clamp further comprises a positioning assembly, the positioning assembly comprises a reference plate and a pressing plate, the cross section of the reference plate is L-shaped, the horizontal part of the reference plate is detachably connected to the lower end of the front side plate through locking members, the upper end of the longitudinal part of the reference plate is provided with a horizontally arranged reference surface, the cross section of the pressing plate is L-shaped, the horizontal part of the pressing plate is slidingly installed on a pair of guide members on the upper end of the front side plate, the lower end of the longitudinal part of the pressing plate is provided with a pressing part, a spring is sleeved on the pair of guide members, and the spring is used to press the pressing plate downward.

4. The mover potting clamp of a linear motor of claim 3, wherein: The pressing part is provided with three parts arranged at intervals at the two ends and the middle part of the longitudinal part of the pressing plate.

5. The mover potting clamp of a linear motor of claim 3, wherein: The guide member is a guide bolt, the guide bolt is screwed with the upper end of the front side plate after penetrating through the horizontal part of the pressing plate, and the upper and lower ends of the spring are respectively abutted against the hexagonal head of the guide bolt and the horizontal part of the pressing plate.