A hollow coil positioning and clamping mechanism

Abstract

The utility model relates to a kind of hollow coil positioning clamping mechanism, to solve the problems of low positioning and clamping efficiency, complex operation and the like in prior art.The mechanism is fixedly connected support plate by the output end of linear motor, and then connect support table, support table right side wall is rotatably connected rotating column, rotating column right end is threadedly connected threaded rod, threaded rod right end is fixedly connected clamping rod, the outer wall of clamping rod right end outside is provided with variable-diameter shaft, and the positioning and clamping of hollow coil are realized by supporting sheet being pushed outward expansion, driving support sleeve expansion, positioning sleeve, elastic ring and support sheet are integrally formed, improve structural strength and operational flexibility.The utility model is compact in structure, convenient to operate, can efficiently complete the positioning and clamping of hollow coil, wide in application range, can significantly improve production efficiency and machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of coil processing technology, and in particular to a hollow coil positioning and clamping mechanism. Background Technology

[0002] As a key component in inductive elements, sensors, and electromagnetic devices, the positioning and clamping accuracy of hollow coils during manufacturing and subsequent processing directly affects the consistency of product performance. In processes such as winding, welding, coating, and testing, the coils need to be fixed quickly, accurately, and without damage. Traditional fixtures often use mechanical jaws to clamp the coil externally or use rigid locating pins inserted into the coil's inner hole for positioning.

[0003] While these methods address the clamping problem to some extent, they still have significant limitations: external clamping easily causes stress concentration on the outer surface of the coil, potentially leading to winding deformation or insulation damage; and when using rigid locating pins inserted into the inner hole of the coil, there is a lack of uniform support and adaptive adjustment capability for the inner wall of the coil, resulting in poor adaptability to coils of different inner diameters. Frequent replacement of clamping components is required when changing products, leading to lengthy adjustment times and severely impacting production efficiency and equipment flexibility. Furthermore, existing clamping mechanisms often lack integrated position adjustment functions, making it difficult to perform precise linear feeding or rotational movement of the coil after clamping, which fails to meet the demands of modern high-speed, high-precision machining processes. Therefore, there is an urgent need for a positioning and clamping mechanism that can provide internal elastic support, adapt to different coil specifications, and integrate precision movement and rotation functions to solve the problems of clamping damage, poor adaptability, and limited functionality in existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide a hollow coil positioning and clamping mechanism that can overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, a hollow coil positioning and clamping mechanism is provided, including a linear motor, a support plate fixedly connected to the output end of the linear motor, a support platform fixedly connected to the upper side wall of the support plate, a rotating column rotatably connected to the right side wall of the support platform, a threaded rod threadedly connected to the right end of the rotating column, and a clamping rod fixedly connected to the right end of the threaded rod.

[0006] A positioning sleeve is fixedly connected to the right side wall of the rotating column and outside the clamping rod. An elastic ring is fixedly connected to the right side wall of the positioning sleeve. A support plate is fixedly connected to the right side wall of the elastic ring. A support sleeve is fixedly connected to the outer side wall of the support plate.

[0007] According to the hollow coil positioning and clamping mechanism, a transmission box is installed on the left side wall of the support platform, and the output end of the transmission box is fixedly connected to the rotating column.

[0008] According to the hollow coil positioning and clamping mechanism, a drive motor is installed on the upper side wall of the transmission box. The output end of the drive motor is fixedly connected to the input end of the transmission box. The drive motor can drive the rotating column to rotate through the transmission box.

[0009] According to the hollow coil positioning and clamping mechanism, the positioning sleeve, elastic ring and support plate are integrally formed, which can effectively improve the overall structural strength of the positioning sleeve. The support plate can expand outward under the support of the variable diameter shaft. The elastic ring allows the support plate to return to its original position when there is no variable diameter shaft support.

[0010] According to the hollow coil positioning and clamping mechanism, a limiting sleeve is fixedly connected to the left end of the support sleeve. The limiting sleeve is trumpet-shaped. Both the support sleeve and the limiting sleeve are made of elastic rubber material. The support sleeve is used to place the hollow coil, and the limiting sleeve can prevent the hollow coil from falling off from the left side.

[0011] According to the hollow coil positioning and clamping mechanism, a variable diameter shaft is provided on the outer wall of the right end of the clamping rod. The diameter of the variable diameter shaft gradually increases from left to right. When the variable diameter shaft moves to the left, the diameter in contact with the support plate gradually increases, thereby causing the support plate to expand outward, which in turn drives the support sleeve to expand, thereby positioning and clamping the hollow coil.

[0012] According to the hollow coil positioning and clamping mechanism, the right end of the clamping rod is provided with an internal hexagonal groove, and the clamping rod can be rotated by the cooperation of the internal hexagonal wrench with the internal hexagonal groove.

[0013] According to the hollow coil positioning and clamping mechanism, the outer wall of the support sleeve is provided with several telescopic grooves to facilitate the expansion or contraction of the support sleeve.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model employs an internal expansion clamping assembly consisting of a variable diameter shaft, a support plate, an elastic ring, and an elastic support sleeve, effectively solving the problem of coil deformation or damage caused by traditional external clamps. During operation, the variable diameter shaft moves axially and radially pushes the support plate, causing the elastic support sleeve to expand uniformly, thus forming surface contact with the inner wall of the coil and providing flexible clamping force. This internal support method avoids localized stress concentration, significantly reducing the risk of damage to the hollow coil winding and insulation layer. It is particularly suitable for clamping fragile, high-precision hollow coils, improving product yield.

[0016] 2. This utility model innovatively integrates a linear motor, a drive motor, and a clamping mechanism into one unit, achieving a fusion of clamping, linear feeding, and rotary motion functions. The linear motor drives the entire clamping mechanism and the workpiece to perform high-precision axial movement, accurately positioning them to the processing position; the drive motor, through a transmission box, drives the clamped hollow coil to rotate. This design eliminates the need for subsequent transfer or secondary clamping steps, greatly improving the automation level and overall production efficiency of online processing (such as winding, coating, and inspection), meeting the demands of modern intelligent manufacturing for process centralization and high-efficiency cycle times. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of a hollow coil positioning and clamping mechanism according to the present invention;

[0019] Figure 2 This is a top view schematic diagram of a hollow coil positioning and clamping mechanism according to the present invention;

[0020] Figure 3 This is a front view of a hollow coil positioning and clamping mechanism according to the present invention.

[0021] Figure 4 This is a cross-sectional schematic diagram of a hollow coil positioning and clamping mechanism according to the present invention.

[0022] Legend:

[0023] 1. Linear motor; 101. Support plate; 2. Support platform; 3. Transmission box; 301. Drive motor; 4. Rotating column; 5. Positioning sleeve; 501. Elastic ring; 502. Support plate; 6. Support sleeve; 601. Limiting sleeve; 602. Telescopic groove; 7. Clamping rod; 701. Variable diameter shaft; 702. Internal hexagonal groove; 703. Threaded rod. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4This utility model discloses a hollow coil positioning and clamping mechanism, which includes a linear motor 1. The output end of the linear motor 1 is fixedly connected to a support plate 101, facilitating linear movement of the support plate 101 to adjust the position of the hollow coil. The support plate 101 is further connected to a support platform 2 to ensure the stability of the mechanism. A transmission box 3 is installed on the support platform 2, and the output end of the transmission box 3 is fixedly connected to a rotating column 4, thereby transmitting power to the rotating column 4.

[0026] The right end of the rotating column 4 is threadedly connected to the threaded rod 703, which is further connected to the clamping rod 7. The right end of the clamping rod 7 is designed with a variable diameter shaft 701, whose diameter gradually increases from left to right. This allows the variable diameter shaft 701 to contact the support plate 502 and push it to expand outward during the clamping process, thereby driving the support sleeve 6 to expand and achieve the positioning and clamping of the hollow coil.

[0027] The positioning sleeve 5 is fixedly connected to the right side wall of the rotating column 4 and is located outside the clamping rod 7. An elastic ring 501 is connected to the right side wall of the positioning sleeve 5, and a support plate 502 is further connected to the elastic ring 501. When the clamping rod 7 moves to the left, the variable diameter shaft 701 pushes the support plate 502 outwards, and the elastic ring 501 restores the support plate 502 to its original position without support, ensuring flexibility in clamping and releasing.

[0028] The outer wall of the support piece 502 is connected to the support sleeve 6, which is used to hold the hollow coil. A limiting sleeve 601, flared in shape, is connected to the left end of the support sleeve 6 to prevent the hollow coil from falling off from the left side. Simultaneously, the outer wall of the support sleeve 6 is provided with several telescopic grooves 602. The design of these grooves 602 allows the support sleeve 6 to expand or contract more easily to accommodate hollow coils of different sizes.

[0029] In addition, a drive motor 301 is installed on the upper side wall of the transmission box 3. The output end of the drive motor 301 is fixedly connected to the input end of the transmission box 3, providing a power source for the rotation of the rotating column 4, which in turn can drive the hollow coil to rotate.

[0030] Unless otherwise specified, the constituent units of this utility model are obtained from conventional commercial channels or manufactured by conventional methods. Their specific structure, working principle, and possible control methods and spatial arrangement methods can adopt conventional choices in the field and should not be regarded as the innovation of this utility model. This is understandable to those skilled in the art, and this utility model patent will not be further elaborated in detail.

[0031] Working principle: First, the clamping rod 7 is manually rotated using an Allen wrench, driving the variable diameter shaft 701 at its left end to move to the left. Its conical surface pushes the support plate 502 to expand radially, causing the elastic support sleeve 6 to expand and internally tighten the hollow coil. After clamping, the linear motor 1 starts, driving the entire clamping mechanism and workpiece to move axially, precisely delivering the coil to the processing position. Simultaneously, the drive motor 301 drives the rotating column 4 and the clamped coil to rotate as a whole via the transmission box 3, meeting the needs of workpiece movement and rotation in winding, coating, or inspection processes, thus achieving a highly efficient and automated processing flow.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A hollow coil positioning and clamping mechanism, characterized in that, Includes a linear motor (1), the output end of which is fixedly connected to a support plate (101), the upper side wall of which is fixedly connected to a support platform (2), the right side wall of which is rotatably connected to a rotating column (4), the right end of which is threadedly connected to a threaded rod (703), and the right end of which is fixedly connected to a clamping rod (7); A positioning sleeve (5) is fixedly connected to the right side wall of the rotating column (4) and outside the clamping rod (7). An elastic ring (501) is fixedly connected to the right side wall of the positioning sleeve (5). A ring of support plate (502) is fixedly connected to the right side wall of the elastic ring (501). A support sleeve (6) is fixedly connected to the outer side wall of the ring of support plate (502).

2. The hollow coil positioning and clamping mechanism according to claim 1, characterized in that, A transmission box (3) is installed on the left side wall of the support platform (2), and the output end of the transmission box (3) is fixedly connected to the rotating column (4).

3. The hollow coil positioning and clamping mechanism according to claim 2, characterized in that, A drive motor (301) is installed on the upper side wall of the transmission box (3), and the output end of the drive motor (301) is fixedly connected to the input end of the transmission box (3).

4. The hollow coil positioning and clamping mechanism according to claim 1, characterized in that, The positioning sleeve (5), elastic ring (501), and support plate (502) are integrally formed.

5. A hollow coil positioning and clamping mechanism according to claim 1, characterized in that, The left end of the support sleeve (6) is fixedly connected to a limiting sleeve (601), which is flared. Both the support sleeve (6) and the limiting sleeve (601) are made of elastic rubber material.

6. A hollow coil positioning and clamping mechanism according to claim 1, characterized in that, The right end of the clamping rod (7) is provided with a variable diameter shaft (701), the diameter of which gradually increases from left to right.

7. A hollow coil positioning and clamping mechanism according to claim 1, characterized in that, The right end of the clamping rod (7) is provided with an internal hexagonal groove (702).

8. A hollow coil positioning and clamping mechanism according to claim 1, characterized in that, The outer wall of the support sleeve (6) is provided with several expansion grooves (602).

Images