Electromagnetic power chuck structure

Abstract

The utility model provides a kind of electromagnetic power chuck structure, comprising: electromagnetic power part, permanent magnet, main shaft, power chuck, transition disc, shield and pull rod;Electromagnetic power part is fixed on the inner wall of shield, the direction and size of electromagnetic force are changed by changing the current direction and current size of electromagnetic winding;Main shaft is connected with power chuck by transition disc;Electromagnetic power part controls permanent magnet to drive pull rod to move together by changing magnetic pole direction, pull rod pushes and pulls power chuck, and the chucking or loosening of the chucking jaw of power chuck is realized;The clamping force of power chuck is controlled by changing the magnetic force size of magnet to change the size of direct current.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical equipment, and more particularly to an electromagnetic power chuck structure. Background Technology

[0002] Currently, various powered chucks are widely used, primarily in automated lathes. Compared to traditional chucks, powered chucks enhance the automatic control capabilities of automated lathes, quickly and accurately fixing the workpiece's position for positioning and clamping. This results in improved workpiece machining quality, reduced labor intensity, and increased production efficiency. However, many types of powered chucks suffer from complex power supply structures, making maintenance and repair difficult. Their higher cost also hinders rapid widespread adoption. Utility Model Content

[0003] To address the technical problems in the aforementioned powered chuck technology, an electromagnetic powered chuck structure is provided. This invention achieves chuck clamping and releasing by changing the direction of the current in the electromagnetic winding of the electromagnetic power component, thereby applying both attractive and repulsive forces to the permanent magnet. The clamping degree of the jaws is altered by changing the magnitude of the direct current in the electromagnetic winding of the electromagnetic power component, which in turn affects the magnitude of the force applied to the permanent magnet.

[0004] The technical means adopted in this utility model are as follows:

[0005] An electromagnetic power chuck structure, comprising:

[0006] Electromagnetic power unit, permanent magnet, spindle, power chuck, transition plate, shielding cover, and tie rod;

[0007] The electromagnetic power unit is fixed to the inner wall of the shielding cover. The direction and magnitude of the electromagnetic force are changed by altering the direction and magnitude of the current in the electromagnetic winding. The main shaft is connected to the power chuck via the transition plate. The electromagnetic power unit controls the permanent magnet to move together with the pull rod by changing the direction of the magnetic poles. The pull rod pushes and pulls the power chuck, causing the jaws of the power chuck to clamp or release. The clamping force of the power chuck is controlled by changing the magnitude of the direct current to alter the magnetic force of the magnet.

[0008] Furthermore, the electromagnetic power unit is an electromagnetic power assembly; the electromagnetic power assembly includes an electromagnet; the electromagnetic power assembly is fixed on the base.

[0009] Furthermore, the electromagnetic power unit consists of four electromagnets; the electromagnets are fixed to the inner wall of the shielding cover.

[0010] Furthermore, the permanent magnet and the pull rod are integral.

[0011] Furthermore, the tie rod has a shoulder structure.

[0012] Furthermore, the structure also includes: a deep groove ball bearing; the tie rod and the deep groove ball bearing being integral; and a permanent magnet and the deep groove ball bearing being integral.

[0013] Furthermore, the structure also includes: a shielding cover; the shielding cover isolates the external influences generated by the electromagnetic power component after it is powered on.

[0014] Furthermore, the main shaft and the power chuck are connected as a whole by the transition plate.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The electromagnetic power chuck structure provided by this utility model, when combined with a machine tool, realizes automated clamping and releasing of raw materials by the power chuck, avoiding the tedious operation of manual material changing and improving production efficiency.

[0017] Based on the above reasons, this utility model can be widely promoted in fields such as machine tool processing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the assembly of the electromagnetic power chuck structure with an electromagnetic power component on one side according to this utility model.

[0020] Figure 2 This is a schematic diagram of the assembly of the electromagnetic power chuck structure with electromagnetic power components on both sides according to this utility model.

[0021] Figure 3 This is a schematic diagram of the assembly of an electromagnetic power chuck structure with a permanent magnet as the intermediate magnet of this utility model.

[0022] Figure 4 This is a schematic diagram of the assembly of the electromagnetic power chuck structure with keyways of this utility model.

[0023] Among them, 1 is the electromagnetic power component, 1' is the electromagnet, 2 is the permanent magnet, 2' is the electromagnet / permanent magnet, 3 is the main shaft, 4 is the power chuck, 5 is the transition plate, 6 is the tie rod, 7 is the transition plate, 8 is the shielding cover, and 9 is the deep groove ball bearing. Detailed Implementation

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] 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, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0031] Example 1

[0032] like Figure 1As shown, the electromagnetic chuck structure has an electromagnetic power component 1 fixed on the base. The left side of the pull rod 6 is connected to the permanent magnet 2, and the right side is connected to the power chuck 4, allowing the permanent magnet 2 and the pull rod 6 to move axially to the left or right simultaneously. The left side of the main shaft 3 is connected to the shield 8 via a transition plate 7, and the right side is connected to the power chuck 4 via a transition plate 5, fixing the three together as a whole, allowing for high-speed rotation around the axis. The shield 8 is used to isolate the electromagnetic power component 1 from potential influence on unrelated external metals after being energized. When the workpiece needs to be clamped by the jaws, the direction of the current through the electromagnetic winding in the electromagnetic power assembly 1 is changed, so that the electromagnetic power assembly 1 generates an attractive force on the permanent magnet 2, causing the permanent magnet 2 to drive the pull rod 6 to move to the left, thereby causing the jaws in the power chuck 4 to clamp the workpiece; when the workpiece needs to be released by the jaws, the direction of the current through the electromagnetic winding in the electromagnetic power assembly 1 is changed, so that the electromagnetic power assembly 1 generates a repulsive force on the permanent magnet, causing the permanent magnet 2 to drive the pull rod 6 to move to the right, thereby causing the jaws in the power chuck 4 to release the workpiece.

[0033] Example 2

[0034] like Figure 2 As shown, the electromagnetic chuck structure has electromagnetic power components on both sides, with the electromagnetic power component 1 and the shielding cover 8 fixed on the base. The left side of the pull rod 6 is connected to the permanent magnet 2, and the right side of the pull rod 6 is connected to the power chuck 4, allowing the permanent magnet 2 and the pull rod 6 to move axially to the left or right simultaneously. The right side of the main shaft 3 is connected to the power chuck 4 via a transition plate 5, fixing the two into a whole, allowing for high-speed rotation around the axis. The shielding cover 8 is used to isolate the electromagnetic power component 1 from possible influence on unrelated external metals after being energized. When the workpiece needs to be clamped by the jaws, the direction of the current flowing through the electromagnetic winding in the electromagnetic power assembly 1 is changed so that the left side of the electromagnetic power assembly 1 generates an attractive force to the permanent magnet, and the right side of the electromagnetic power assembly 1 generates a repulsive force to the permanent magnet 2. This causes the permanent magnet 2 to move the pull rod 6 to the left, thereby clamping the workpiece by the jaws in the power chuck 4. When the workpiece needs to be released by the jaws, the direction of the current flowing through the electromagnetic winding in the electromagnetic power assembly 1 is changed so that the left side of the electromagnetic power assembly 1 generates a repulsive force to the permanent magnet, and the right side of the electromagnetic power assembly 1 generates an attractive force to the permanent magnet 2. This causes the permanent magnet 2 to move the pull rod 6 to the right, thereby releasing the workpiece by the jaws in the power chuck 4.

[0035] Example 3

[0036] like Figure 3As shown, the electromagnetic chuck structure uses a permanent magnet as the central magnet. The right side of the pull rod 6 is connected to the power chuck 4. The permanent magnet 2 is fixed to the pull rod 6 via a positioning block on the left and a shoulder on the right, allowing the permanent magnet 2 to move axially to the left or right simultaneously with the pull rod 6. The main shaft 3 is connected to the left side via a transition plate 7, and to the right side via a transition plate 5 and the power chuck 4, fixing the three together as a whole, allowing it to rotate at high speed around the axis. The shield 8 is used to isolate the electromagnet 1' from possible influence on unrelated external metals after it is energized. When the workpiece needs to be clamped by the jaws, the current direction of the two electromagnets 1' is changed so that the left electromagnet 1' attracts the permanent magnet 2 and the right electromagnet 1' repels the permanent magnet 2. This causes the permanent magnet 2 to move the pull rod 6 to the left, thereby clamping the workpiece by the jaws in the power chuck 4. When the workpiece needs to be released by the jaws, the current direction of the two electromagnets 1' is changed so that the left electromagnet 1' repels the permanent magnet 2 and the right electromagnet 1' attracts the permanent magnet 2. This causes the permanent magnet 2 to move the pull rod 6 to the right, thereby releasing the workpiece by the jaws in the power chuck 4.

[0037] Example 4

[0038] like Figure 4 As shown, the electromagnetic chuck structure has a keyway. The right side of the pull rod 6 is connected to the power chuck 4. The deep groove ball bearing 9 is fixed to the pull rod 6 via a positioning block on the left and a shoulder on the right. The electromagnet / permanent magnet 2' is mounted on the deep groove ball bearing 9 below and connected above the electromagnet / permanent magnet 2' via a key. The electromagnet / permanent magnet 2' can move axially left and right in the keyway via the key. The left side of the spindle 3 is connected via a transition plate 7, and the right side is connected to the power chuck 4 via a transition plate 5, fixing the three together as a whole, allowing high-speed rotation around the axis. The shield 8 is used to isolate the electromagnet 1' from possible influence on unrelated external metals after it is energized. When the workpiece needs to be clamped by the jaws, the current direction of the electromagnets 1' on both sides is changed so that the left electromagnet 1' attracts the electromagnet / permanent magnet 2' and the right electromagnet 1' repels the electromagnet / permanent magnet 2'. This causes the electromagnet / permanent magnet 2' to move the pull rod 6 to the left, thereby clamping the workpiece by the jaws in the power chuck 4. When the workpiece needs to be released by the jaws, the current direction of the electromagnets 1' on both sides is changed so that the left electromagnet 1' repels the electromagnet / permanent magnet 2' and the right electromagnet 1' attracts the electromagnet / permanent magnet 2'. This causes the electromagnet / permanent magnet 2' to move the pull rod 6 to the right, thereby releasing the workpiece by the jaws in the power chuck 4.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electromagnetic power chuck structure, characterized in that, include: Electromagnetic power unit, permanent magnet, spindle, power chuck, transition plate, shielding cover, and tie rod; The electromagnetic power unit is fixed to the inner wall of the shielding cover. The direction and magnitude of the electromagnetic force are changed by altering the direction and magnitude of the current in the electromagnetic winding. The main shaft is connected to the power chuck via the transition plate. The electromagnetic power unit controls the permanent magnet to move together with the pull rod by changing the direction of the magnetic poles. The pull rod pushes and pulls the power chuck, causing the jaws of the power chuck to clamp or release. The clamping force of the power chuck is controlled by changing the magnitude of the direct current to alter the magnetic force of the magnet.

2. The electromagnetic power chuck structure according to claim 1, characterized in that, The electromagnetic power unit is an electromagnetic power assembly; the electromagnetic power assembly includes an electromagnet; the electromagnetic power assembly is fixed on the base.

3. The electromagnetic power chuck structure according to claim 1, characterized in that, The electromagnetic power unit consists of four electromagnets; the electromagnets are fixed to the inner wall of the shielding cover.

4. The electromagnetic power chuck structure according to claim 1, characterized in that, The permanent magnet and the pull rod are integral.

5. The electromagnetic power chuck structure according to claim 1, characterized in that, The tie rod has a shoulder structure.

6. The electromagnetic power chuck structure according to claim 3, characterized in that, The structure also includes: a deep groove ball bearing; a tie rod integral with the deep groove ball bearing; and a permanent magnet integral with the deep groove ball bearing.

7. The electromagnetic power chuck structure according to claim 1, characterized in that, The structure also includes a shielding cover; the shielding cover isolates the electromagnetic power component from external influences generated after it is powered on.

8. The electromagnetic power chuck structure according to claim 1, characterized in that, The main shaft and the power chuck are connected as a whole by the transition plate.

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