Floating and jacking device for motor lamination stack

Abstract

The utility model discloses a floating and jacking device for motor lamination stack, which comprises a jacking assembly, an expansion sleeve clamp and a driving assembly, the expansion sleeve clamp is located between the jacking assembly and the driving assembly, the driving assembly comprises a pull rod, one end of the expansion sleeve clamp is connected with the pull rod, the other end of the expansion sleeve clamp abuts against the jacking assembly, and the jacking assembly comprises an elastic piece. A workpiece is located on the periphery of the expansion sleeve clamp and is jacked and released through an elastic piece. The clamp body is nested in the expansion sleeve body, the workpiece is connected to the expansion sleeve body in a sleeving mode and abuts against the surface of the end cover, the elastic piece exerts fixed jacking force, floating connection is achieved, the same force exerted by the device is evenly distributed, the effect is the same after chamfering machining is conducted on the two ends of the workpiece, and the productivity is improved while the product consistency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a floating and pressing device for motor lamination stacking. Background Technology

[0002] Motor lamination stacking is a technology that stacks multiple motor components together to form a compact and powerful motor system. This type of stacking is commonly used in applications requiring high torque or power density, such as electric vehicles, aerospace, and robotics. Lamination stacking reduces the size and weight of motors while improving their performance and efficiency. However, when machining the outer chamfer of a motor lamination stack, the gaps between the stacked silicon steel sheets result in inconsistent overall lengths. Current technology involves manual clamping and bolt fastening, requiring manual intervention for each workpiece, leading to lengthy loading and unloading times and significantly impacting production capacity. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to realize a floating and top-pressing device for motor lamination stacking that can improve production capacity while ensuring product consistency.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A floating and pressing device for motor lamination stacking includes a pressing component, an expanding sleeve clamp, and a driving component. The expanding sleeve clamp is located between the pressing component and the driving component. The driving component includes a pull rod. One end of the expanding sleeve clamp is connected to the pull rod, and the other end abuts against the pressing component. The pressing component includes an elastic element. The workpiece is located on the outer periphery of the expanding sleeve clamp and is pressed and released by the elastic element.

[0006] Preferably, the pressing assembly further includes a top and a contact portion, the elastic element is located between the top and the contact portion, the top and the contact portion are shaped to fit together, and the top and the contact portion are fitted and separated by the compression and release of the elastic element.

[0007] Preferably, the expansion sleeve clamp includes a clamp assembly and an expansion sleeve assembly. The expansion sleeve assembly is located on the outer periphery of the clamp assembly. The clamp assembly includes a clamp body. The expansion sleeve assembly includes an expansion sleeve body and a support base. The clamp body is nested within the expansion sleeve body. The clamp body and the support base are integrally formed.

[0008] Preferably, the floating and pressing device of the motor lamination stack further includes a limiting member. A groove is provided on one end of the expansion sleeve body. The limiting member engages with the expansion sleeve body through the groove to achieve tightening and pulling of the expansion sleeve body.

[0009] Preferably, the clamp assembly further includes a positioning block and a bushing, the positioning block being annular and located on the outer periphery of the expansion sleeve body, the bushing being located below the positioning block and the inner wall of the bushing contacting the limiting member.

[0010] Preferably, the contact part includes a pusher and an end cap, the end cap having a channel at its center, the tip passing through the channel and contacting the clamp body, the workpiece being sleeved on the expansion sleeve body and contacting the surface of the end cap.

[0011] Preferably, the center line of the clamp body coincides with the center line of the pull rod.

[0012] Preferably, the drive assembly further includes a pull spindle, a pull rod joint, a pull sleeve, and a flange. The pull rod is arranged axially along the spindle. The pull rod is connected to the expansion sleeve clamp through the pull rod joint. The spindle is connected to the expansion sleeve clamp through the flange. The pull sleeve surrounds the outer periphery of the pull rod joint and fits tightly with the pull rod joint.

[0013] Preferably, the pull rod is detachably connected to the expansion sleeve clamp.

[0014] Preferably, the elastic element is a spring.

[0015] Compared with existing technologies, the floating and pressing device for motor lamination stacking of this utility model has the following advantages:

[0016] This application discloses a floating and pressing device for motor lamination stacking. The pressing component includes a center, an elastic element, and a pushing body. The elastic element is located between the center and the pushing body. The center passes through the end cap and abuts against the fixture body. The fixture body is nested within the expansion sleeve body. The workpiece is fitted onto the expansion sleeve body and abuts against the surface of the end cap. The elastic element applies a fixed pressing force to achieve a floating connection. Using this device, the same force is evenly distributed, and the chamfering of both ends of the workpiece produces the same effect, ensuring product consistency while increasing production capacity. The fixture body and end cap are made of nylon material to prevent pressure damage to the contact surface between the fixture and the workpiece. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the floating and pressing device and the workpiece of the motor lamination stack of this application;

[0018] Figure 2 for Figure 1 Exploded view of the structure;

[0019] Figure 3 for Figure 2 Structural sectional view;

[0020] Figure 4This is a cross-sectional view of the assembled floating and pressing device of the motor lamination stack of this application.

[0021] In the diagram: 100, top pressure assembly; 101, center point; 102, pusher; 103, elastic element; 104, end cap; 200, clamp assembly; 201, clamp body; 202, positioning block; 203, bushing; 300, expansion sleeve assembly; 301, expansion sleeve body; 302, support base; 400, drive assembly; 401, pull rod; 402, spindle; 403, pull rod joint; 404, flange; 405, pull sleeve; 500, workpiece; 600, limiting element. Detailed Implementation

[0022] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Figures 1-4This utility model discloses a floating and pressing device for a motor laminated stack. The device includes a pressing component 100, a expanding sleeve clamp, and a driving component 400. The expanding sleeve clamp is located between the pressing component 100 and the driving component 400. The driving component 400 includes a pull rod 401. One end of the expanding sleeve clamp is connected to the pull rod 401, and the other end abuts against the pressing component 100. The pressing component 100 includes an elastic element 103. The workpiece 500 is located on the outer periphery of the expanding sleeve clamp and is pressed and released by the elastic element 103.

[0026] In a preferred embodiment, the pressing assembly 100 further includes a tip 101 and an abutment portion. An elastic member 103 is located between the tip 101 and the abutment portion. The tip 101 and the abutment portion are shaped to fit together. The tip 101 and the abutment portion are fitted together and separated by the compression and release of the elastic member 103. The pressing assembly 100 is fixedly connected to the tailstock (not shown in the figure).

[0027] Specifically, the elastic element 103 is a spring.

[0028] The expansion sleeve fixture includes a fixture assembly 200 and an expansion sleeve assembly 300. The expansion sleeve assembly 300 is located on the outer periphery of the fixture assembly 200. The fixture assembly 200 includes a fixture body 201. The expansion sleeve assembly 300 includes an expansion sleeve body 301 and a support base 302. The fixture body 201 is nested inside the expansion sleeve body 301. The expansion sleeve body 301 and the support base 302 are integrally formed.

[0029] Specifically, the pull rod 401 is detachably connected to the expansion sleeve clamp.

[0030] Specifically, the center line of the top 101 coincides with the center line of the fixture body 201.

[0031] In a preferred embodiment, the contact part includes a pusher 102 and an end cap 104. The end cap 104 has a channel in the center, and the tip 101 passes through the channel and contacts the fixture body 201. The workpiece 500 is sleeved on the expansion sleeve body 301 and contacts the surface of the end cap 104.

[0032] In a preferred embodiment, the pusher 102 and the side of the end cap 104 are arc-shaped surfaces, and the arc angle is smaller closer to the end cap 104. Therefore, through the micro-compensation of the pusher 102, the end cap 104 can be uniformly applied to the end face of the workpiece 500.

[0033] The clamp assembly 200 also includes a positioning block 202 and a bushing 203. The positioning block 202 is annular and located on the outer periphery of the expansion sleeve body 301. The bushing 203 is located below the positioning block 202 and its inner wall contacts the limiting member 600. The bushing 203 reduces friction and provides cushioning and shock absorption.

[0034] The floating and pressing device of the motor laminate stack also includes a nut and a washer, with the washer located between the pusher 102 and the end cap 104, and the tip 101 connected to the end cap 104 by the nut.

[0035] In a preferred embodiment, the surfaces of the fixture body 201 and the end cap 104 are made of flexible material, which can prevent pressure damage to the contact surface with the workpiece 500.

[0036] Specifically, the surface of end cap 104 is made of nylon material.

[0037] The drive assembly 400 also includes a spindle 402, a tie rod joint 403, a pull sleeve 405, and a flange 404. The tie rod 401 is axially arranged along the spindle 402. The tie rod 401 is connected to the expansion sleeve clamp through the tie rod joint 403. The spindle 402 is connected to the expansion sleeve clamp through the flange 404. The pull sleeve 405 surrounds the outer periphery of the tie rod joint 403 and fits tightly with the tie rod joint 403.

[0038] Specifically, spindle 402 is a standard part.

[0039] Specifically, the center line of the fixture body 201 coincides with the center line of the spindle 402.

[0040] The floating and pressing device of the motor lamination stack in this application also includes a limiting member 600. The pull rod 401 is connected to the expansion sleeve clamp through the limiting member 600 to realize the action of the expansion sleeve body 301 clamping and releasing the workpiece 500. In addition, it limits the expansion amount of the expansion sleeve body 301 during the release and clamping operation, so as to avoid the expansion sleeve body 301 from having the release and clamping action when there is no workpiece 500 clamping, which would cause the expansion amount to be too large and damage the expansion sleeve body 301.

[0041] A groove is provided on one end of the expansion sleeve body 301, and the limiting member 600 is engaged with the expansion sleeve body 301 through the groove to realize the tightening and pulling of the expansion sleeve body 301.

[0042] Specifically, there are multiple limit components 600.

[0043] In the floating and pressing device of the motor lamination stack of this application, during assembly, the pull rod 401 serves as the power transmission component for the opening and closing of the expansion sleeve clamp and the clamp body 201. The main shaft 402 is connected to the expansion sleeve clamp via the flange 404. The pull rod 401 is connected to the expansion sleeve clamp via the pull rod joint 403. The support base 302, bushing 203, positioning block 202, and clamp body 201 are integrally formed. The limiting component 600 transmits the action of the pull rod 401 to connect it with the expansion sleeve body 301, thereby realizing the action of the expansion sleeve body 301 clamping and opening the workpiece 500. The end cap 104, nut, washer, pusher 102, elastic component 103, and center 101 are integrally formed to apply a pushing force to the workpiece 500.

[0044] In this application, the floating and pressing device of the motor lamination stack is used such that the tailstock drives the tip 101 to press against the expansion sleeve body 301, the surface of the end cover 104 first contacts the workpiece 500, the tip 101 moves inward until it presses against the expansion sleeve body 301, and the end cover 104 moves outward. The pre-tightening force of the elastic element 103 makes the end cover 104 support the end face of the workpiece 500. The contact surface between the pusher 102 and the end cover 104 is an arc-shaped surface. Through the micro-compensation of the pusher 102, the end cover 104 applies force evenly to press against the end face of the workpiece 500. The tailstock rotates and drives the tip of the tip 101 through the expansion sleeve body 301. The end cover 104 does not drive the tip 101 to rotate. The floating and pressing device for motor lamination stacking in this application includes a pressing assembly 100 comprising a top 101, an elastic element 102, and a pushing body 103. The elastic element 103 is located between the top 101 and the pushing body 102. The top 101 passes through the end cap 104 and abuts against the clamp body 201. The clamp body 201 is nested within the expansion sleeve body 301. The workpiece 500 is fitted onto the expansion sleeve body 301 and abuts against the surface of the end cap 104. The elastic element 103 applies a fixed pressing force to achieve a floating connection. Using this device, the same force is evenly distributed, and the chamfering of both ends of the workpiece 500 produces the same effect, ensuring product consistency while increasing production capacity. The surfaces of the clamp body 201 and the end cap 104 are made of nylon material to prevent pressure damage to the surface of the workpiece 500.

[0045] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A floating and pressing device for motor lamination stacking, characterized in that: It includes a pressing assembly, an expanding sleeve clamp, and a driving assembly. The expanding sleeve clamp is located between the pressing assembly and the driving assembly. The driving assembly includes a pull rod. One end of the expanding sleeve clamp is connected to the pull rod, and the other end abuts against the pressing assembly. The pressing assembly includes an elastic element. The workpiece is located on the outer periphery of the expanding sleeve clamp and is pressed and released by the elastic element.

2. The floating and pressing device for motor lamination stacking according to claim 1, characterized in that: The pressing assembly further includes a top and a contact portion, with the elastic element located between the top and the contact portion. The top and the contact portion are shaped to fit together, and the top and the contact portion are fitted and separated by the compression and release of the elastic element.

3. The floating and pressing device for motor lamination stacking according to claim 2, characterized in that: The expansion sleeve clamp includes a clamp assembly and an expansion sleeve assembly. The expansion sleeve assembly is located on the outer periphery of the clamp assembly. The clamp assembly includes a clamp body. The expansion sleeve assembly includes an expansion sleeve body and a support base. The clamp body is nested within the expansion sleeve body. The clamp body and the support base are integrally formed.

4. The floating and pressing device for motor lamination stacking according to claim 3, characterized in that: The floating and pressing device of the motor lamination stack also includes a limiting member. A groove is provided on one end of the expansion sleeve body. The limiting member is engaged with the expansion sleeve body through the groove to realize the tightening and pulling of the expansion sleeve body.

5. The floating and pressing device for motor lamination stacking according to claim 4, characterized in that: The clamp assembly further includes a positioning block and a bushing. The positioning block is annular and located on the outer periphery of the expansion sleeve body. The bushing is located below the positioning block and its inner wall is in contact with the limiting member.

6. The floating and pressing device for motor lamination stack according to claim 3, characterized in that: The contact part includes a pusher and an end cap. The end cap has a channel in the center. The tip passes through the channel and abuts against the fixture body. The workpiece is sleeved on the expansion sleeve body and abuts against the surface of the end cap.

7. The floating and pressing device for motor lamination stack according to claim 3, characterized in that: The center line of the clamp body coincides with the center line of the pull rod.

8. The floating and pressing device for motor lamination stack according to claim 3, characterized in that: The drive assembly also includes a pull spindle, a pull rod joint, a pull sleeve, and a flange. The pull rod is arranged axially along the spindle. The pull rod is connected to the expansion sleeve clamp through the pull rod joint. The spindle is connected to the expansion sleeve clamp through the flange. The pull sleeve surrounds the outer periphery of the pull rod joint and fits tightly with the pull rod joint.

9. The floating and pressing device for motor lamination stack according to claim 1, characterized in that: The pull rod is detachably connected to the expansion sleeve clamp.

10. The floating and pressing device for motor lamination stack according to claim 1, characterized in that: The elastic element is a spring.

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