MOS (Metal Oxide Semiconductor) tube dispensing and curing equipment

Abstract

The utility model provides MOS tube dispensing and curing equipment which comprises an angle adjusting structure and a bottom table, the angle adjusting structure is arranged on the bottom table and comprises a glue injection tube, a first sliding block and a curved sliding groove, one end of the sliding block moves in the sliding groove, the other end of the sliding block is provided with a through hole, and the glue injection tube is fixed through the through hole. One end of the rotating structure is fixed to the bottom table, and the other end of the rotating structure is rotationally connected with the angle adjusting structure, so that the angle adjusting structure rotates around a center shaft of the rotating structure. And non-uniform dispensing caused by angle limitation is avoided, the dispensing precision and efficiency are improved, and different process requirements are met.

Description

Technical Field

[0001] The present application relates to the field of glue dispensing and curing equipment, and in particular to a glue dispensing and curing equipment for MOS tubes. Background Art

[0002] Traditional dispensing and curing equipment is widely used in the electronics manufacturing field, primarily for precisely applying and curing glue at specific locations. However, this type of equipment typically operates only on a single plane and lacks multi-angle and multi-plane dispensing capabilities. In actual production, many complex components require dispensing on multiple planes, and the fixed structure and single adjustment method of traditional equipment often cannot meet this requirement, resulting in poor dispensing results and difficulty in ensuring product quality.

[0003] To address the shortcomings of traditional equipment in multi-angle dispensing, existing technologies have proposed several improvement solutions. For example, some devices use multi-axis adjustment devices or designs with adjustable brackets to allow for a certain degree of adjustment of the dispensing angle. These solutions can achieve simple angle changes and dispense glue in different directions. However, most of these solutions rely on fixed multi-axis structures and can only adjust the angle within a limited range. They cannot achieve multi-angle dispensing across multiple planes, and still have obvious application limitations.

[0004] Although the existing technology has been optimized in angle adjustment, it still has significant defects. First, the multi-axis adjustment device can usually only achieve angle changes on a single plane, which cannot meet the complex process requirements of dispensing on multiple planes. Second, the adjustment range of such equipment is limited, and it is difficult to achieve multi-degree-of-freedom dispensing adjustment in actual operation. In addition, the existing technical solutions also have shortcomings in accuracy and ease of operation, and cannot meet the needs of flexible dispensing on multiple planes and multiple angles during the dispensing and curing process of MOS tubes. Therefore, there is an urgent need for a dispensing and curing device that can overcome the above defects to achieve more efficient multi-degree-of-freedom adjustment. Utility Model Content

[0005] In view of this, it is necessary to provide a MOS tube dispensing and curing device that can be adjusted with multiple degrees of freedom to solve the above problems.

[0006] An embodiment of the present application provides a MOS tube dispensing and curing device, comprising an angle adjustment structure and a base, wherein the angle adjustment structure is provided on the base, and the angle adjustment structure is provided with:

[0007] The angle adjustment structure includes a glue injection tube, a first sliding block and a sliding groove. The sliding groove is a channel structure with a curvature. One end of the sliding block is arranged in the sliding groove, and the other end is provided with a through hole. The glue injection tube is arranged in the through hole.

[0008] a rotating structure, one end of which is fixed to the base, and the other end of which is rotatably connected to the angle adjustment structure;

[0009] The rotating structure drives the angle adjustment structure to rotate around the central axis of the rotating structure.

[0010] In at least one embodiment of the present application, the angle adjustment structure includes a fixed block, the fixed block is located at the upper end of the angle adjustment structure, and one end of the fixed block is fixedly connected to the base.

[0011] In at least one embodiment of the present application, a groove is provided on the fixed block, and the rotating structure includes a rotating wedge and a rotating shaft. The rotating wedge is arranged in the groove of the fixed block, and a hole is provided on the rotating wedge, a rotating groove is provided in the hole, a protrusion is provided on the outer circumference of the rotating shaft and the rotating shaft is arranged in the hole.

[0012] In at least one embodiment of the present application, the base includes a horizontal adjustment structure, the upper end of the base is defined as the working part, and the part away from the working part is defined as the fixed part. The horizontal adjustment structure is arranged on the working part, and the horizontal adjustment structure is slidably connected to the rotating structure.

[0013] In at least one embodiment of the present application, the horizontal adjustment structure includes a horizontal sliding rod and a second sliding block, the second sliding block is provided with a first through hole, the horizontal sliding rod is fixedly connected to the working part, one end of the horizontal sliding rod passes through the first through hole and is fixedly connected to the working part, and one side of the sliding block is fixedly connected to the fixed block.

[0014] In at least one embodiment of the present application, the base includes a vertical adjustment structure, which is arranged on the working part, one end of the vertical adjustment structure is fixedly connected to the horizontal adjustment structure, the vertical adjustment structure and the horizontal adjustment structure are in the same horizontal plane, and the vertical adjustment structure is arranged along the vertical direction of the horizontal adjustment structure.

[0015] In at least one embodiment of the present application, the vertical adjustment structure includes a vertical sliding rod and a third sliding block, the third sliding block is provided with a second through hole, the vertical sliding rod passes through the two through holes and is fixed on the working part, and one end of the horizontal sliding rod is inserted into the third sliding block.

[0016] In at least one embodiment of the present application, the base includes support columns, and a plurality of the support columns are provided on the working part, and one end of some of the support columns is fixedly connected to the horizontal adjustment structure and the other end is fixedly connected to the working part, and one end of the remaining support columns is fixedly connected to the vertical adjustment structure and the other end is fixedly connected to the working part.

[0017] In at least one embodiment of the present application, the glue injection tube includes a glue outlet provided at one end, and a straight line formed by connecting the endpoint of the glue outlet and the endpoint of one end of the slot of the sliding groove is defined as a first line, and a straight line formed by connecting the endpoint of the glue outlet and the endpoint of the other end of the slot of the sliding groove is defined as a second line, and the acute dihedral angle formed by the first line and the second line is 60°.

[0018] In at least one embodiment of the present application, when the third sliding block slides along the direction of the vertical sliding rod shaft, the third sliding block drives the second sliding block to slide along the direction of the vertical sliding rod shaft.

[0019] The MOS tube dispensing and curing equipment provided above realizes multi-degree-of-freedom adjustment of the dispensing and curing equipment through the cooperation of the angle adjustment structure and the rotating structure. The angle adjustment structure is arranged on the base platform, including a sliding groove with a curvature and a first sliding block. The sliding block slides in the curvature groove to achieve angle adjustment within a specific range. One end of the rotating structure is fixed to the base platform, and the other end is rotatably connected to the angle adjustment structure. The rotating structure drives the angle adjustment structure to rotate around its central axis, thereby realizing flexible adjustment of the equipment in multiple planes and multiple angles. This design not only improves the operational flexibility of the equipment, but also can meet the dispensing operations under different process requirements, avoids the problem of uneven dispensing due to angle limitation, and thus improves the accuracy and efficiency of dispensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a MOS tube dispensing and curing device;

[0021] Figure 2 This is a partial structural diagram of a MOS tube dispensing and curing equipment;

[0022] Figure 3 It is a structural diagram of the horizontal adjustment structure;

[0023] Figure 4 This is a structural diagram of the angle adjustment structure;

[0024] Figure 5 This is a structural diagram of the rotating structure.

[0025] Description of main component symbols

[0026] 1. Angle adjustment structure; 2. Base; 3. Angle adjustment structure; 4. Glue injection tube; 5. First sliding block; 6. Sliding groove; 7. Rotating structure; 8. Fixed block; 9. Rotating wedge; 10. Rotating axis; 11. Horizontal adjustment structure; 12. Horizontal sliding rod; 13. Second sliding block; 14. First through hole; 15. Vertical adjustment structure; 16. Vertical sliding rod; 17. Third sliding block; 18. Second through hole; 19. Support column; 20. Glue outlet; 100. A MOS tube dispensing and curing device. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] It should be noted that when a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0029] An embodiment of the present application provides a MOS tube dispensing and curing device, comprising an angle adjustment structure and a base, wherein the angle adjustment structure is provided on the base, and the angle adjustment structure is provided with:

[0030] The angle adjustment structure includes a glue injection tube, a first sliding block and a sliding groove. The sliding groove is a channel structure with a curvature. One end of the sliding block is arranged in the sliding groove, and the other end is provided with a through hole. The glue injection tube is arranged in the through hole.

[0031] a rotating structure, one end of which is fixed to the base, and the other end of which is rotatably connected to the angle adjustment structure;

[0032] The rotating structure drives the angle adjustment structure to rotate around the central axis of the rotating structure.

[0033] The MOS tube dispensing and curing equipment provided above realizes multi-degree-of-freedom adjustment of the dispensing and curing equipment through the cooperation of the angle adjustment structure and the rotating structure. The angle adjustment structure is arranged on the base platform, including a sliding groove with a curvature and a first sliding block. The sliding block slides in the curvature groove to achieve angle adjustment within a specific range. One end of the rotating structure is fixed to the base platform, and the other end is rotatably connected to the angle adjustment structure. The rotating structure drives the angle adjustment structure to rotate around its central axis, thereby realizing flexible adjustment of the equipment in multiple planes and multiple angles. This design not only improves the operational flexibility of the equipment, but also can meet the dispensing operations under different process requirements, avoids the problem of uneven dispensing due to angle limitation, and thus improves the accuracy and efficiency of dispensing.

[0034] The following is combined with Figure 1-5 , some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] The embodiment of the present application provides a MOS tube dispensing and curing device 100, comprising an angle adjustment structure 1 and a base 2, wherein the angle adjustment structure 3 is provided on the base 2, and the angle adjustment structure 1 is provided with:

[0036] An angle adjustment structure 3, including a glue injection tube 4, a first sliding block 5 and a sliding groove 6, wherein the sliding groove 6 is a curved channel structure, one end of the sliding block is disposed in the sliding groove 6, and the other end is provided with a through hole, and the glue injection tube 4 is disposed in the through hole;

[0037] a rotating structure 7, one end of which is fixed to the base 2 and the other end of which is rotatably connected to the angle adjustment structure 3;

[0038] The rotating structure 7 drives the angle adjustment structure 3 to rotate around the central axis of the rotating structure 7 .

[0039] Specifically, the cooperation between the angle adjustment structure 1 and the rotating structure 7 realizes the multi-degree-of-freedom adjustment of the dispensing and curing equipment. The angle adjustment structure 3 is arranged on the base 2, and includes a glue injection tube 4, a first sliding block 5 and a sliding groove 6 with a curvature. The glue injection tube 4 adjusts the glue dispensing angle by sliding the sliding block in the sliding groove 6. One end of the rotating structure 7 is fixed to the base 2, and the other end is rotatably connected to the angle adjustment structure 3, driving the angle adjustment structure 3 to rotate around the central axis of the rotating structure 7 to realize glue dispensing operations in different planes. This design greatly improves the flexibility and precision of the equipment. By adjusting the position of the sliding block in the curvature groove, the glue injection tube 4 can achieve precise glue dispensing, and through the rotation of the rotating structure 7, glue dispensing operations can be performed at multiple angles and directions, ensuring that glue is evenly distributed on multiple surfaces of complex components. It is suitable for the production of MOS tubes that require glue dispensing in multiple planes and at different angles, while improving production efficiency and product quality, and reducing glue dispensing defects caused by improper angles.

[0040] In a specific example, the angle adjustment structure 1 includes a fixing block 8 , which is located at the upper end of the angle adjustment structure 1 , and one end of the fixing block 8 is fixedly connected to the base 2 .

[0041] Specifically, a fixed block 8 is added to the angle adjustment structure 1 to achieve a stable connection between the angle adjustment structure 3 and the base 2. The fixed block 8 is located at the upper end of the angle adjustment structure 1 and is fixedly connected to the base 2. This design enhances the stability of the entire adjustment structure and helps to prevent the angle adjustment structure 3 from offsetting or loosening during the adjustment process, thereby ensuring the accuracy of the dispensing process. The presence of the fixed block 8 ensures that the angle adjustment structure 3 can remain stable after multiple adjustment operations, which is especially suitable for application scenarios that require frequent adjustment of the dispensing angle. The stable connection of the fixed block 8 makes the adjustment process smoother and more reliable, and is suitable for MOS tube dispensing and curing equipment with higher precision requirements.

[0042] In a specific example, a groove is provided on the fixed block 8, and the rotating structure 7 includes a rotating wedge 9 and a rotating shaft 10. The rotating wedge 9 is arranged in the groove of the fixed block 8, and a hole is provided on the rotating wedge 9, a rotating groove is provided in the hole, and a protrusion that cooperates with the rotating groove is provided on the outer circumference of the rotating shaft 10, and the rotating shaft 10 is arranged in the hole.

[0043] Specifically, a groove is opened on the fixed block 8 and a rotating wedge 9 and a rotating shaft 10 are introduced to achieve a tight connection between the rotating structure 7 and the fixed block 8. The rotating wedge 9 is arranged in the groove of the fixed block 8. A hole is provided on the wedge, and a rotating groove is opened in the hole. The outer peripheral surface of the rotating shaft 10 is provided with a protrusion that cooperates with the rotating groove. The rotating shaft 10 passes through the hole and is connected to the wedge. This design ensures the stable cooperation between the rotating structure 7 and the fixed block 8 during the rotation process, and avoids shaking or offset of the rotating device during operation. At the same time, the cooperation between the rotating shaft 10 and the wedge makes the rotation angle more precise, thereby improving the accuracy and consistency of dispensing. It is particularly suitable for MOS tube curing equipment that requires fine angle adjustment during high-precision dispensing.

[0044] In a specific example, the base 2 includes a horizontal adjustment structure 11, the upper end of the base 2 is defined as the working part, and the part away from the working part is defined as the fixed part. The horizontal adjustment structure 11 is arranged on the working part, and the horizontal adjustment structure 11 is slidably connected to the rotating structure 7.

[0045] Specifically, a horizontal adjustment structure 11 is added to the base 2 to realize flexible adjustment of the base 2 in the horizontal direction. The upper end of the base 2 is defined as the working part, and the part away from the working part is defined as the fixed part. The horizontal adjustment structure 11 is arranged on the working part and is slidably connected to the rotating structure 7. This design enables the base 2 to be adjusted in the horizontal direction, ensuring that the position can be adjusted according to the actual situation of the workpiece during the dispensing process, thereby achieving more precise dispensing operations. The sliding connection of the horizontal adjustment structure 11 makes the adjustment process smoother and avoids interference with the rotating structure 7 during the adjustment process. It is suitable for application scenarios that require dispensing at different horizontal positions. Through horizontal adjustment, it can better adapt to MOS tubes of different sizes and shapes.

[0046] In a specific example, the horizontal adjustment structure 11 includes a horizontal sliding rod 12 and a second sliding block 13, the second sliding block 13 is provided with a first through hole 14, the horizontal sliding rod 12 is fixedly connected to the working part, one end of the horizontal sliding rod 12 passes through the first through hole 14 and is fixedly connected to the working part, and one side of the sliding block is fixedly connected to the fixed block 8.

[0047] Specifically, the cooperation between the horizontal sliding rod 12 and the second sliding block 13 in the horizontal adjustment structure 11 further realizes the horizontal position adjustment of the dispensing equipment. The second sliding block 13 is provided with a first through hole 14. One end of the horizontal sliding rod 12 passes through the through hole and is fixedly connected to the working part, and the other end is fixedly connected to the sliding block. This design makes the horizontal adjustment process more stable. The movement of the sliding block on the sliding rod realizes the precise positioning of the dispensing equipment in the horizontal direction, thereby improving the flexibility and accuracy of the dispensing operation, which is particularly suitable for application scenarios where MOS tubes in different positions need to be dispensed.

[0048] In a specific example, the base 2 includes a vertical adjustment structure 15, which is arranged on the working part. One end of the vertical adjustment structure 15 is fixedly connected to the horizontal adjustment structure 11. The vertical adjustment structure 15 and the horizontal adjustment structure 11 are in the same horizontal plane, and the vertical adjustment structure 15 is arranged along the vertical direction of the horizontal adjustment structure 11.

[0049] Specifically, the base 2 includes a vertical adjustment structure 15, which is provided on the working portion, fixedly connected to the horizontal adjustment structure 11, and arranged along the vertical direction of the horizontal adjustment structure 11. This design allows the device to be adjusted in the vertical direction, ensuring the flexibility and adaptability of the device. The vertical adjustment structure 15 and the horizontal adjustment structure 11 are on the same horizontal plane, ensuring coordination between the two. This design enables the device to be precisely adjusted in the vertical direction while maintaining the stability of the horizontal plane, which is suitable for various dispensing tasks and improves the scope of application and flexibility of the device. Users can adjust the device through the vertical adjustment structure 15 to adapt to MOS tubes of different sizes. This function provides high-adjustment flexibility in the production line, which is particularly suitable for occasions requiring precise dispensing, such as production lines for high-end electronic products, improving production efficiency and accuracy.

[0050] In a specific example, the vertical adjustment structure 15 includes a vertical sliding rod 16 and a third sliding block 17. The third sliding block 17 is provided with a second through hole 18. The vertical sliding rod 16 passes through the two through holes and is fixed to the working part. One end of the horizontal sliding rod 12 is inserted into the third sliding block 17.

[0051] Specifically, the vertical adjustment structure 15 comprises a vertical sliding rod 16 and a third sliding block 17. The third sliding block 17 has a second through-hole 18, through which the vertical sliding rod 16 extends and is secured to the working portion. One end of the horizontal sliding rod 12 plugs into the third sliding block 17. This design allows for precise vertical adjustment while simultaneously cooperating with the horizontal sliding rod 12 for fine adjustments, enhancing the stability and adjustability of the device. The coordination of the vertical sliding rod 16 and the third sliding block 17 ensures smooth vertical adjustment, while the connection between the horizontal sliding rod 12 and the third sliding block 17 provides additional adjustment capability. This design improves the stability and accuracy of the device during complex operations, making it adaptable to various production requirements. During production, users can make vertical adjustments by cooperating with the vertical sliding rod 16 and the third sliding block 17, while using the horizontal sliding rod 12 for fine adjustments. This feature is suitable for high-precision dispensing operations, such as those on electronic component production lines, improving flexibility and accuracy during the production process.

[0052] In a specific example, the base 2 includes a support column 19, and a plurality of the support columns 19 are provided on the working part, and one end of some of the support columns 19 is fixedly connected to the horizontal adjustment structure 11, and the other end is fixedly connected to the working part, and one end of the remaining support columns 19 is fixedly connected to the vertical adjustment structure 15, and the other end is fixedly connected to the working part.

[0053] Specifically, a plurality of support columns 19 are provided on the working part to achieve the overall stability of the equipment. One end of some support columns 19 is fixedly connected to the horizontal adjustment structure 11, and the other end is fixedly connected to the working part. One end of the remaining support columns 19 is fixedly connected to the vertical adjustment structure 15, and the other end is fixedly connected to the working part. This design enables the equipment to remain stable during adjustment and operation, avoiding dispensing errors caused by shaking or instability of the equipment. The setting of the support columns 19 ensures the structural stability of the entire equipment and is suitable for scenarios where stable dispensing operations are required under various working conditions.

[0054] In a specific example, the glue injection tube 4 includes a glue outlet 20 provided at one end, and a straight line connecting the endpoint of the glue outlet 20 and the endpoint of one end of the slot of the sliding groove 6 is defined as a first line, and a straight line connecting the endpoint of the glue outlet 20 and the endpoint of the other end of the slot of the sliding groove 6 is defined as a second line, and the acute dihedral angle formed by the first line and the second line is 60°.

[0055] Specifically, the angular relationship between the glue outlet 20 of the glue injection tube 4 and the notch of the sliding groove 6 is optimized to achieve precise glue dispensing of the glue dispensing equipment at different angles. The straight lines connecting the end points of the glue outlet 20 and the two end points of the notch of the sliding groove 6 are defined as the first line and the second line respectively. The acute dihedral angle formed by the two lines is 60°. This design ensures that the glue dispensing effect of the glue injection tube 4 at different positions is consistent. Through precise control of the angle, the error in the glue dispensing process can be reduced, ensuring that the glue can be evenly distributed at the required position. It is suitable for MOS tube glue dispensing and curing equipment with higher requirements for glue dispensing angles.

[0056] In a specific example, when the third sliding block 17 slides along the shaft direction of the vertical sliding rod 16 , the third sliding block 17 drives the second sliding block 13 to slide along the shaft direction of the vertical sliding rod 16 .

[0057] Specifically, the third sliding block 17 is slid on the vertical sliding rod 16, driving the second sliding block 13 to slide in the vertical direction, thereby realizing synchronous adjustment of the equipment in the vertical direction. When the third sliding block 17 slides in the direction of the vertical sliding rod 16, it drives the second sliding block 13 to move in the vertical direction synchronously. This design ensures the synchronization of the equipment during vertical adjustment, avoids the dispensing error caused by asynchronous adjustment, and is suitable for MOS tube dispensing and curing equipment that requires precise vertical adjustment. Through synchronous adjustment, more precise vertical dispensing operation can be achieved without affecting the horizontal adjustment.

[0058] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.

Claims

1. A MOS tube dispensing and curing device, characterized in that: It includes an angle adjustment structure and a base, wherein the angle adjustment structure is arranged on the base, and the angle adjustment structure is provided with: The angle adjustment structure includes a glue injection tube, a first sliding block and a sliding groove. The sliding groove is a channel structure with a curvature. One end of the sliding block is arranged in the sliding groove, and the other end is provided with a through hole. The glue injection tube is arranged in the through hole. a rotating structure, one end of which is fixed to the base, and the other end of which is rotatably connected to the angle adjustment structure; The rotating structure drives the angle adjustment structure to rotate around the central axis of the rotating structure.

2. The MOS tube dispensing and curing equipment according to claim 1, characterized in that: The angle adjustment structure includes a fixed block, which is located at the upper end of the angle adjustment structure, and one end of the fixed block is fixedly connected to the base.

3. The MOS tube dispensing and curing equipment according to claim 2, characterized in that: The fixed block is provided with a groove, and the rotating structure includes a rotating wedge and a rotating shaft. The rotating wedge is arranged in the fixed block groove, and a hole is provided on the rotating wedge, a rotating groove is provided in the hole, a protrusion is provided on the outer circumference of the rotating shaft and the rotating shaft is arranged in the hole.

4. The MOS tube dispensing and curing equipment according to claim 3, characterized in that: The base includes a horizontal adjustment structure, the upper end of the base is defined as a working part, and the part away from the working part is defined as a fixed part. The horizontal adjustment structure is provided on the working part, and the horizontal adjustment structure is slidably connected to the rotating structure.

5. The MOS tube dispensing and curing equipment according to claim 4, characterized in that: The horizontal adjustment structure includes a horizontal sliding rod and a second sliding block, the second sliding block is provided with a first through hole, the horizontal sliding rod is fixedly connected to the working part, one end of the horizontal sliding rod passes through the first through hole and is fixedly connected to the working part, and one side of the sliding block is fixedly connected to the fixed block.

6. The MOS tube dispensing and curing equipment according to claim 5, characterized in that: The base includes a vertical adjustment structure, which is arranged on the working part. One end of the vertical adjustment structure is fixedly connected to the horizontal adjustment structure. The vertical adjustment structure and the horizontal adjustment structure are in the same horizontal plane, and the vertical adjustment structure is arranged along the vertical direction of the horizontal adjustment structure.

7. The MOS tube dispensing and curing equipment according to claim 6, characterized in that: The vertical adjustment structure includes a vertical sliding rod and a third sliding block. The third sliding block is provided with a second through hole. The vertical sliding rod passes through the two through holes and is fixed on the working part. One end of the horizontal sliding rod is plugged into the third sliding block.

8. The MOS tube dispensing and curing equipment according to claim 7, characterized in that: The base includes support columns, and a plurality of support columns are provided on the working part. One end of some support columns is fixedly connected to the horizontal adjustment structure and the other end is fixedly connected to the working part, and one end of the remaining support columns is fixedly connected to the vertical adjustment structure and the other end is fixedly connected to the working part.

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