Lamination pressing clamp

By designing a U-shaped stacking clamping fixture, and utilizing the cooperation between the moving plate and the threaded hole, as well as the spring reset function, the complexity and precision problems of traditional clamping methods are solved, achieving the stability and accuracy of stacking, and improving the performance and efficiency of the linear motor.

CN223989431UActive Publication Date: 2026-03-13NAKAMURA SEIKI (WUXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional linear motor stator lamination clamping methods are complex to operate, have low precision, and are prone to lamination deformation. Furthermore, the clamping device has a fixed structure and cannot flexibly adjust the clamping gap, which affects the motor's performance and stability.

Method used

Design a stacking clamping fixture that uses a U-shaped combination of a front pressure plate, a rear pressure plate, and a side plate. The distance can be precisely adjusted by sliding the moving plate and the rear pressure plate and engaging the threaded hole. Combined with the spring reset function, the stability and accuracy of the stacking are ensured.

Benefits of technology

It achieves precise clamping of the stacked plates, improves the processing and stability of the linear motor, simplifies the operation process, and reduces adjustment time and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a lamination pressing clamp which comprises a bottom plate, a front pressing plate, a rear pressing plate and a side plate are sequentially arranged on the bottom plate, and a U shape is defined by the front pressing plate, the rear pressing plate and the side plate. A movable plate slidably connected with the bottom plate is arranged on the side close to the rear pressing plate, at least two second threaded holes are formed in the movable plate at equal intervals, and first threaded holes used in cooperation with the second threaded holes are formed in the rear pressing plate; a front pressing plate, a rear pressing plate and a side plate on a bottom plate jointly define a U-shaped structure to fix a lamination, one side of the rear pressing plate achieves translation relative to the front pressing plate through a moving plate in sliding connection with the bottom plate, and a second threaded hole in the moving plate is used in cooperation with a first threaded hole in the rear pressing plate. An externally applied long bolt penetrates through the first threaded hole and the second threaded hole, so that the distance between the movable plate and the front pressing plate is accurately adjusted, the effect of applying pressing force to the lamination is achieved, and the stability and accuracy of the lamination in the machining or using process are ensured.
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Description

Technical Field

[0001] This utility model belongs to the field of linear motor technology and relates to a stacked plate clamping fixture. Background Technology

[0002] In the manufacturing process of linear motors, the clamping of stator laminations is a critical step. Traditional clamping methods often have problems such as complicated operation, low clamping accuracy, and easy deformation of laminations, which affect the performance and stability of linear motors. In addition, traditional clamping devices usually have a relatively fixed structure and cannot flexibly adjust the clamping gap. This not only limits the flexibility of use, but may also increase adjustment time and cost. Utility Model Content

[0003] The purpose of this invention is to provide a stacking clamping fixture that can solve the problems mentioned in the background art.

[0004] According to the technical solution provided by this utility model: a stacked clamping fixture includes a base plate, on which a front pressure plate, a rear pressure plate, and a side plate are sequentially arranged, forming a U-shape; a movable plate that is slidably connected to the base plate is provided on the side near the rear pressure plate, and at least two second threaded holes are equally spaced on the movable plate; a first threaded hole that cooperates with the second threaded holes is provided on the rear pressure plate; long bolts are connected to the first threaded hole and the second threaded hole to adjust the distance between the movable plate and the front pressure plate.

[0005] Preferably, a spring is provided between the movable plate and the rear pressure plate, the spring being used to drive the movable plate to reset.

[0006] Preferably, a bracket is provided on the side near the front pressure plate that contacts the base plate; the bracket has a groove, an inner groove and a through groove, and the three are connected, wherein the through groove extends out of the bracket; a motor coil is provided in the groove.

[0007] Preferably, the base plate is provided with a pressing pad to suspend the motor coil and ensure its flatness.

[0008] Preferably, the clamping pad has symmetrical inclined grooves.

[0009] Preferably, the bracket has a third threaded hole, which, with the help of external bolts, fixes the bracket to the side plate.

[0010] The positive and progressive effects of this application are as follows:

[0011] The stacked plate clamping fixture provided in this embodiment of the utility model has the following advantages:

[0012] 1. The stacked sheets are fixed by forming a U-shaped structure with the front pressure plate, rear pressure plate and side plates on the base plate. The rear pressure plate is slidably connected to the base plate to achieve translation relative to the front pressure plate. The second threaded hole on the movable plate cooperates with the first threaded hole on the rear pressure plate. The externally applied long bolt passes through the first threaded hole and the second threaded hole, thereby achieving precise adjustment of the distance between the movable plate and the front pressure plate, achieving the effect of applying a clamping force to the stacked sheets, and ensuring the stability and accuracy of the stacked sheets during processing or use. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 yes Figure 1 Remove the motor coil from the 3D diagram.

[0015] Figure 3 yes Figure 2 Enlarged view of the structure of section A in the middle.

[0016] Figure 4 This is a schematic diagram of the spring connection of this utility model.

[0017] In the figure: base plate 1; front pressure plate 11; rear pressure plate 12; first threaded hole 13; side plate 14; moving plate 2; second threaded hole 21; bracket 3; groove 31; motor coil 32; inner groove 33; through groove 34; third threaded hole 35; pressing pad 4; inclined groove 41; spring 5. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example 1

[0021] like Figure 1-4As shown, this utility model is a stacked clamping fixture, including a base plate 1, on which a front pressure plate 11, a rear pressure plate 12, and a side plate 14 are arranged in sequence, forming a U-shape; a movable plate 2 is provided on the side near the rear pressure plate 12, which is slidably connected to the base plate 1, and at least two second threaded holes 21 are equally spaced on the movable plate 2; a first threaded hole 13 is provided on the rear pressure plate 12 to cooperate with the second threaded holes 21; long bolts are connected to the first threaded hole 13 and the second threaded hole 21 to adjust the distance between the movable plate 2 and the front pressure plate 11;

[0022] The stacked sheets are fixed by forming a U-shaped structure with the front pressure plate 11, the rear pressure plate 12 and the side plate 14 on the base plate 1. The rear pressure plate 12 is slidably connected to the base plate 1 by a movable plate 2, which moves relative to the front pressure plate 11. The second threaded hole 21 on the movable plate 2 works in conjunction with the first threaded hole 13 on the rear pressure plate 12. An externally applied long bolt passes through the first threaded hole 13 and the second threaded hole 21, thereby achieving precise adjustment of the distance between the movable plate 2 and the front pressure plate 11, achieving the effect of applying a clamping force to the stacked sheets, and ensuring the stability and accuracy of the stacked sheets during processing or use.

[0023] A spring 5 is provided between the movable plate 2 and the rear pressure plate 12. The spring 5 is used to drive the movable plate 2 to reset. In order to ensure that the movable plate 2 can automatically reset, a spring 5 is installed between the movable plate 2 and the rear pressure plate 12. When the clamping force is reduced, the spring 5 pushes the movable plate 2 back to the initial position, ensuring that the fixture has the function of initially fixing the stacked pieces.

[0024] Example 2:

[0025] like Figure 1-4 As shown, this embodiment is based on the previous embodiment, and differs from the previous embodiment in that: a bracket 3 is provided on the side near the front pressure plate 11 that contacts the bottom plate 1; the bracket 3 is provided with a groove 31, an inner groove 33 and a through groove 34, and the three are connected, wherein the through groove 34 extends out of the bracket 3; a motor coil 32 is provided in the groove 31.

[0026] First, the motor coil 32 is placed in the groove. Then, with the help of an external bolt, it passes through the side plate 14 and forms a thread in the third threaded hole 35, thereby temporarily fixing the bracket 3 to the side plate 14. The groove 31, the inner groove 33 and the through groove 34 are designed so that when structural adhesive is applied from the through groove 34, the structural adhesive can flow into the groove 33, so that the motor coil 32 sticks to the bracket 3.

[0027] The base plate 1 is provided with a pressing pad 4 to suspend the motor coil 32 and ensure its flatness.

[0028] Symmetrical grooves 41 are provided on the clamping pad 4 to ensure that the corners of the clamping pad 4 will not collide with the motor coil 32 when the motor coil 32 is placed.

[0029] The bracket 3 has a third threaded hole 35, which, with the help of external bolts, fixes the bracket 3 to the side plate 14.

[0030] First, the motor coil 32 is accurately placed in the groove 31 of the bracket 3, and the external bolt passes through the through slot 34 of the bracket 3 to form a threaded connection with the third threaded hole 35 on the side plate 14, thereby achieving the initial fixation of the bracket 3.

[0031] Subsequently, structural adhesive is applied through the through groove 34, allowing it to flow smoothly into the groove 33, thereby firmly adhering the motor coil 32 to the bracket 3 and ensuring its stability;

[0032] Meanwhile, the clamping pad 4 on the base plate 1 is designed with symmetrical inclined grooves 41 to allow the motor coil 32 to be suspended in the air, ensuring flatness and preventing damage caused by the corner of the clamping pad 4 colliding with the motor coil 32.

[0033] The layout of the grooves 31, inner grooves 33, and through grooves 34 designed on the bracket 3 not only facilitates the application of structural adhesive, but also enhances the bonding effect between the motor coil 32 and the bracket 3, ensuring the stability and safety of the entire component during use.

[0034] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A lamination press clamp characterized by, The utility model provides a kind of electric motor winding machine, including bottom plate (1), the front pressing plate (11) is sequentially arranged on the bottom plate (1), rear pressing plate (12) and side plate (14), and the front pressing plate (11), rear pressing plate (12) and side plate (14) are enclosed in a U shape;Close to the side of rear pressing plate (12) is equipped with the moving plate (2) slidingly connected with bottom plate (1), and at least two second threaded holes (21) are equidistantly arranged on the moving plate (2), and first threaded hole (13) is arranged on rear pressing plate (12) and is used in cooperation with second threaded hole (21);First threaded hole (13) and second threaded hole (21) are connected with long bolt, to adjust the distance between moving plate (2) and front pressing plate (11).

2. A lamination press clamp as defined in claim 1, wherein: Spring (5) is arranged between the moving plate (2) and rear pressing plate (12), and spring (5) is used to drive the moving plate (2) to reset.

3. A lamination press clamp as defined in claim 1, wherein: Close to the side of front pressing plate (11) is equipped with the bracket (3) in contact with bottom plate (1);Bracket (3) is equipped with recess (31), inner recess (33) and through slot (34), and the three are communicated, and the through slot (34) extends out of bracket (3);Motor coil (32) is arranged in recess (31).

4. A lamination press clamp as defined in claim 3, wherein: The bottom plate (1) is equipped with pressing pad (4), so that motor coil (32) is suspended, to ensure its flatness.

5. A lamination press clamp as defined in claim 4, wherein: Symmetrical inclined groove (41) is arranged on the pressing pad (4).

6. A lamination press clamp as defined in claim 5, wherein: Third threaded hole (35) is arranged on the bracket (3), and the bracket (3) is fixed on the side plate (14) under the fixation of external connecting bolt.