Cylindrical workpiece clamp tool

By designing a cylindrical workpiece fixture, power is transmitted through the meshing of a worm gear and a worm wheel, and the guide tooth plate meshes with a transmission tooth ring to achieve uniform clamping and rotation of the workpiece. This solves the problems of laborious operation and low efficiency in traditional clamping methods and improves processing efficiency.

CN223617272UActive Publication Date: 2025-12-02XIAN UNIV OF TECH
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Patent Information

Application Number
CN202520256450.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-02
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Traditional clamping methods are laborious and inefficient. The clamping effect depends on the operator's experience, making it difficult to guarantee clamping stability and processing accuracy. Furthermore, some devices cannot distribute force evenly, resulting in unstable clamping. The complex structure also affects processing efficiency.

Method used

Design a cylindrical workpiece clamping fixture. The worm gear meshes with the worm wheel, the worm wheel meshes with the drive shaft, the drive gear meshes with the gear ring, the guide tooth plate cooperates with the guide rod, and the ring clamp moves synchronously to clamp the workpiece. The drive component drives the rotating component to rotate, thereby achieving stable clamping and rotation functions and improving processing efficiency.

Benefits of technology

It achieves stable clamping and rotation of the workpiece, significantly improving processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of workpiece clamp tools, in particular to a cylindrical workpiece clamp tool. Comprising a supporting platform, an adjusting wheel, a worm, a worm gear, a transmission shaft, a transmission gear, a connecting shaft, a transmission gear ring, a guide toothed plate, a guide groove, a guide rod, a guide block, an annular clamping base, a sliding rail, a sliding rod, a sliding block, a rotating assembly, a driving assembly, a transmission assembly and a collecting assembly, the guide rod is arranged in the guide groove, and the guide block is arranged on the side wall of the guide rod; the guide blocks are slidably connected with the guide rods, two sets of sliding rails are arranged on the upper portions of the two sides of the supporting platform, sliding rods are arranged in the sliding rails, sliding blocks are arranged on the side walls of the sliding rods, the sliding blocks are slidably connected with the sliding rods, and two sets of annular clamping bases are arranged on the upper portions of the two sides of the supporting platform. In the using process of the workpiece clamp tool, the clamp tool not only achieves stable clamping of a cylindrical workpiece, but also improves the machining efficiency through the rotating function.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece fixture technology, and in particular to a cylindrical workpiece fixture. Background Technology

[0002] In the field of machining and manufacturing, the clamping and fixing of cylindrical workpieces has always been an important technical aspect. Traditional clamping methods mostly use manual clamping devices, which are not only laborious and inefficient, but also the clamping effect often depends on the operator's experience and skill level, making it difficult to guarantee the stability of clamping and the machining accuracy. With the continuous development of industrial automation, higher requirements have been placed on the clamping and fixing of cylindrical workpieces, requiring fast, reliable and accurate clamping to improve machining efficiency and product quality.

[0003] In practical use, some devices cannot ensure that cylindrical workpieces are subjected to uniform force when clamping them, resulting in unstable clamping. Other devices are complex in structure and inconvenient to operate, which affects processing efficiency and urgently needs to be improved, thus making it difficult to achieve stable clamping and improve processing efficiency.

[0004] Therefore, to address the aforementioned problems of inconvenience in achieving stable clamping and improving processing efficiency, a cylindrical workpiece clamping fixture can be designed. During use, the cylindrical workpiece is first securely placed above the rotating assembly. Then, the operator manually rotates the adjusting wheel, which in turn drives the adjusting shaft to rotate the worm gear. The precise meshing of the worm gear and worm wheel ensures smooth power transmission, causing the transmission shaft to rotate accordingly. The transmission gear on the transmission shaft then meshes with the transmission gear ring on the receiving shaft, driving the transmission gear ring to rotate. Due to the meshing design of the guide gear plate and the transmission gear ring, the rotation of the transmission gear ring causes the guide gear plates on both sides to move in opposite directions. The movement of the guide tooth plate is converted into linear motion by the guide block on the guide rod, which in turn pushes one side of the annular clamp closer to the cylindrical workpiece. At the same time, the other side of the annular clamp moves synchronously in opposite directions through the sliding block on the sliding rod. In this way, the two annular clamps can effectively and evenly clamp and fix the cylindrical workpiece. In addition, the start drive assembly can drive the rotation assembly to rotate through the transmission assembly, and the rotation assembly can drive the cylindrical workpiece to rotate together, which greatly facilitates subsequent processing operations and significantly improves processing efficiency. In summary, this fixture not only achieves stable clamping of the cylindrical workpiece, but also improves processing efficiency through the rotation function. Utility Model Content

[0005] In order to overcome the problems that some workpiece clamping fixtures cannot ensure uniform force on cylindrical workpieces during use, resulting in unstable clamping, while other fixtures are complex in structure and inconvenient to operate, affecting processing efficiency, they urgently need to be improved, thus making it difficult to achieve stable clamping and improve processing efficiency.

[0006] The technical solution of this utility model is as follows: a cylindrical workpiece clamping fixture, comprising a support platform, an adjusting wheel, a worm, a worm wheel, a transmission shaft, a transmission gear, a receiving shaft, a transmission gear ring, a guide tooth plate, a guide groove, a guide rod, a guide block, an annular clamp, a sliding rail, a sliding rod, a sliding block, a rotating assembly, a driving assembly, a transmission assembly, and a collecting assembly. A worm is provided on the inner wall of the support platform, and an adjusting wheel is provided at one end of the worm. A transmission shaft is provided on the inner wall of the support platform, and a worm wheel is provided on the side wall of the transmission shaft. The worm meshes with the worm wheel. A transmission gear is provided on the side wall of the transmission shaft. A receiving shaft is provided on the inner wall of the support platform, and a transmission gear ring is provided on the side wall of the receiving shaft. The transmission gear meshes with the transmission gear ring. Two sets of guide grooves are provided inside both sides of the support platform. The platform is equipped with guide rods, and guide blocks are mounted on the side walls of the guide rods. The guide blocks are slidably connected to the guide rods. Two sets of sliding rails are mounted on the upper sides of both sides of the support platform. Sliding rods are mounted inside the sliding rails, and sliding blocks are mounted on the side walls of the sliding rods. The sliding blocks are slidably connected to the sliding rods. Two sets of annular clamps are mounted on the upper sides of both sides of the support platform. One side of the annular clamp is fixedly connected to the upper part of the guide block, and the other side of the annular clamp is fixedly connected to the inner wall of the sliding block. Two sets of guide tooth plates are mounted on both sides of the inner side of the support platform. The two sets of guide tooth plates are respectively mounted on both sides of the transmission tooth ring and mesh with the transmission tooth ring. A rotating component is mounted on the upper part of the support platform. A driving component is mounted on the upper part of the driving component. A collecting component is mounted on one side of the support platform.

[0007] Preferably, during the use of the workpiece fixture, firstly, the cylindrical workpiece is securely placed above the rotating assembly. Then, the operator manually rotates the adjusting wheel. This action, in conjunction with the adjusting shaft, causes the worm gear to rotate. The precise meshing of the worm gear and worm wheel ensures smooth power transmission, causing the transmission shaft to rotate accordingly. The transmission gear on the transmission shaft then meshes with the transmission gear ring on the receiving shaft, driving the transmission gear ring to rotate. Due to the meshing design of the guide gear plate and the transmission gear ring, the rotation of the transmission gear ring causes the guide gear plates on both sides to move in opposite directions. The movement of the guide gear plates is converted by the guide blocks on the guide rod. The linear motion pushes one side of the annular clamp closer to the cylindrical workpiece, while the other side of the annular clamp moves synchronously in opposite directions via a sliding block on a sliding rod. This allows the two annular clamps to effectively and evenly hold and fix the cylindrical workpiece. Furthermore, the start-up drive assembly can drive the rotation assembly to rotate via the transmission assembly, which in turn rotates the cylindrical workpiece, greatly facilitating subsequent machining operations and significantly improving machining efficiency. In summary, this fixture not only achieves stable clamping of the cylindrical workpiece but also enhances machining efficiency through its rotation function.

[0008] Preferably, the rotating assembly includes a rotating shaft and a rotating seat. The rotating shaft is located above the support platform, the rotating seat is located at the upper end of the rotating shaft, and the lower end of the rotating shaft is rotatably connected to the upper part of the support platform.

[0009] Preferably, the drive assembly includes a drive shaft, a drive motor, and a mounting base. The mounting base is located above the support platform, the drive motor is located inside the mounting base, and the drive shaft is located at the output end of the drive motor.

[0010] Preferably, the transmission assembly includes a drive disc, arc-shaped blocks, and a retaining ring. The drive disc is located at the upper end of the drive shaft, and multiple sets of arc-shaped blocks are arranged on the side wall of the drive disc. A retaining ring is located on the bottom wall of the rotating seat.

[0011] Preferably, the transmission assembly also includes an arc-shaped groove, with multiple sets of arc-shaped grooves formed on the inner wall of the fixed ring, and the arc-shaped block being rotatably connected to the fixed ring through the arc-shaped groove.

[0012] Preferably, the collection component includes a connecting block and a collection box. The collection box is provided on one side of the support platform, and the connecting block is provided above one side of the collection box. There are two sets of connecting blocks.

[0013] Preferably, the collection assembly also includes a connecting shaft and a cover. A connecting shaft is provided between the two sets of connecting blocks, and a cover is provided on the side wall of the connecting shaft. The cover is rotatably connected to the collection box through the connecting shaft.

[0014] The beneficial effects of this utility model are:

[0015] During the use of the workpiece fixture, firstly, the cylindrical workpiece is securely placed above the rotating assembly. Then, the operator manually rotates the adjusting wheel. This action, in turn, drives the adjusting shaft to rotate the worm gear. The precise meshing of the worm gear and worm wheel ensures smooth power transmission, causing the transmission shaft to rotate accordingly. The transmission gear on the transmission shaft then meshes with the transmission gear ring on the receiving shaft, driving the transmission gear ring to rotate. Due to the meshing design of the guide plate and the transmission gear ring, the rotation of the transmission gear ring causes the guide plates on both sides to move in opposite directions. The movement of the guide plates is converted into linear motion by the guide blocks on the guide rod. The movement of the ring clamps pushes one side of the ring clamp closer to the cylindrical workpiece, while the other side of the ring clamp moves synchronously in opposite directions via a sliding block on a sliding rod. This allows the two ring clamps to effectively and evenly hold and fix the cylindrical workpiece. Furthermore, the start-up drive assembly can drive the rotation assembly to rotate via the transmission assembly, which in turn rotates the cylindrical workpiece, greatly facilitating subsequent machining operations and significantly improving machining efficiency. In summary, this fixture not only achieves stable clamping of the cylindrical workpiece but also enhances machining efficiency through its rotation function. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a cylindrical workpiece fixture according to this utility model.

[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of a cylindrical workpiece fixture according to this utility model.

[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of a cylindrical workpiece fixture according to this utility model.

[0019] Figure 4 The diagram shown is a partial three-dimensional structural diagram of a cylindrical workpiece fixture according to this utility model.

[0020] Figure 5 The diagram shown is a partial three-dimensional structural diagram of a cylindrical workpiece fixture according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Support platform; 2. Adjusting wheel; 4. Worm gear; 5. Worm wheel; 6. Drive shaft; 7. Drive gear; 8. Connecting shaft; 9. Drive gear ring; 10. Guide tooth plate; 11. Guide groove; 12. Guide rod; 13. Guide block; 14. Annular clamp; 15. Sliding rail; 16. Sliding rod; 17. Sliding block; 101. Rotating shaft; 102. Rotating seat; 201. Drive shaft; 202. Drive motor; 203. Mounting seat; 301. Drive disc; 302. Arc-shaped block; 303. Fixing ring; 304. Arc-shaped groove; 401. Connecting block; 402. Collection box; 403. Connecting shaft; 404. Box cover. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a cylindrical workpiece fixture, comprising a support platform 1, an adjusting wheel 2, a worm gear 4, a worm wheel 5, a transmission shaft 6, a transmission gear 7, a receiving shaft 8, a transmission gear ring 9, a guide tooth plate 10, a guide groove 11, a guide rod 12, a guide block 13, an annular clamping seat 14, a sliding rail 15, a sliding rod 16, a sliding block 17, a rotating assembly, a driving assembly, a transmission assembly, and a collecting assembly. The worm gear 4 is provided on the inner wall of the support platform 1. One end of the worm 4 is equipped with an adjusting wheel 2. A drive shaft 6 is installed on the inner wall of the support platform 1. A worm wheel 5 is installed on the side wall of the drive shaft 6. The worm 4 meshes with the worm wheel 5. A drive gear 7 is installed on the side wall of the drive shaft 6. A receiving shaft 8 is installed on the inner wall of the support platform 1 of the adjusting wheel 2. A drive gear ring 9 is installed on the side wall of the receiving shaft 8. The drive gear 7 meshes with the drive gear ring 9. Two sets of guide grooves 11 are opened inside both sides of the support platform 1. The inner walls of the guide grooves 11 are... The support platform 1 is provided with a guide rod 12, and a guide block 13 is provided on the side wall of the guide rod 12. The guide block 13 is slidably connected to the guide rod 12. Two sets of sliding rails 15 are provided on the upper sides of both sides of the support platform 1. A sliding rod 16 is provided inside the sliding rail 15. A sliding block 17 is provided on the side wall of the sliding rod 16. The sliding block 17 is slidably connected to the sliding rod 16. Two sets of annular clamps 14 are provided on the upper sides of both sides of the support platform 1. One side of the annular clamp 14 is fixedly connected to the upper part of the guide block 13, and the other side of the annular clamp 14 is fixedly connected to the inner wall of the sliding block 17. Two sets of guide tooth plates 10 are provided on both sides of the inner side of the support platform 1. The two sets of guide tooth plates 10 are respectively provided on both sides of the transmission tooth ring 9. The guide tooth plates 10 mesh with the transmission tooth ring 9. A rotating component is provided on the upper part of the support platform 1. A driving component is provided on the upper part of the driving component. A transmission component is provided on the upper end of the driving component. A collecting component is provided on one side of the support platform 1.

[0024] Please see Figure 2The rotating assembly includes a rotating shaft 101 and a rotating seat 102. The rotating shaft 101 is located above the support platform 1, and the rotating seat 102 is located at the upper end of the rotating shaft 101. The lower end of the rotating shaft 101 is rotatably connected to the upper part of the support platform 1. The rotating seat 102 rotates via the rotating shaft 101. The driving assembly includes a driving shaft 201, a driving motor 202, and a mounting base 203. The mounting base 203 is located above the support platform 1, and the driving motor 202 is housed inside the mounting base 203. 2. The output end of the drive motor 202 is provided with a drive shaft 201. Starting the drive motor 202 can drive the drive shaft 201 to rotate. The transmission assembly includes a drive disk 301, an arc block 302 and a fixing ring 303. The drive disk 301 is provided at the upper end of the drive shaft 201. Multiple sets of arc blocks 302 are provided on the side wall of the drive disk 301. The fixing ring 303 is provided on the bottom wall of the rotating seat 102. The starting shaft can drive the multiple sets of arc blocks 302 to rotate through the drive disk 301.

[0025] Please see Figures 3-5 The transmission assembly also includes an arc groove 304. Multiple sets of arc grooves 304 are provided on the inner wall of the fixed ring 303. The arc block 302 is rotatably connected to the fixed ring 303 through the arc groove 304. The arc block 302 on the drive disc 301 cooperates with the arc groove 304 on the fixed ring 303 to cause the fixed ring 303 to rotate. The collection assembly includes a connecting block 401 and a collection box 402. A collection box 402 is provided on one side of the support platform 1. A connecting block 401 is provided above one side of the collection box 402. Two sets of connecting blocks 401 are provided. Waste generated during processing is collected into the collection box 402. The collection assembly also includes a connecting shaft 403 and a box cover 404. A connecting shaft 403 is provided between the two sets of connecting blocks 401. A box cover 404 is provided on the side wall of the connecting shaft 403. The box cover 404 is rotatably connected to the collection box 402 through the connecting shaft 403. The box cover 404 can be easily opened by rotating the connecting shaft 403.

[0026] When using the workpiece fixture, first, place the cylindrical workpiece securely on top of the rotating base 102.

[0027] Subsequently, the operator manually rotates the adjusting wheel 2, which in turn drives the adjusting shaft 3 to rotate the worm 4. The precise meshing of the worm 4 and the worm wheel 5 ensures smooth power transmission, causing the transmission shaft 6 to rotate accordingly. The transmission gear 7 on the transmission shaft 6 then meshes with the transmission gear ring 9 on the receiving shaft 8, driving the transmission gear ring 9 to rotate. Due to the meshing design between the guide plate 10 and the transmission gear ring 9, the rotation of the transmission gear ring 9 causes the guide plates 10 on both sides to move in opposite directions.

[0028] The movement of the guide tooth plate 10 is converted into linear motion by the guide block 13 on the guide rod 12, which in turn pushes one side of the annular clamp 14 closer to the cylindrical workpiece. At the same time, the other side of the annular clamp 14 moves synchronously in opposite directions through the sliding block 17 on the sliding rod 16. In this way, the two annular clamps 14 can effectively and evenly clamp and fix the cylindrical workpiece.

[0029] Furthermore, after the drive motor 202 is started, it drives the drive disk 301 to rotate via the drive shaft 201. The arc-shaped block 302 on the drive disk 301 engages with the arc-shaped groove 304 on the fixed ring 303, causing the fixed ring 303 to rotate. When the fixed ring 303 rotates, it drives the rotating seat 102 and the cylindrical workpiece above it to rotate together via the rotating shaft 101, which greatly facilitates subsequent processing operations and significantly improves processing efficiency.

[0030] Finally, after processing is completed, the box cover 404 can be easily opened by rotating the connecting shaft 403, allowing the waste generated during processing to be collected into the collection box 402 for subsequent waste disposal and storage.

[0031] In summary, this fixture not only achieves stable clamping of cylindrical workpieces, but also improves processing efficiency through its rotation function.

[0032] Through the above steps, during the use of the workpiece fixture, firstly, the cylindrical workpiece is securely placed above the rotating assembly. Then, the operator manually rotates the adjusting wheel 2. This action will cause the adjusting shaft 3 to drive the worm 4 to rotate. The precise meshing of the worm 4 and the worm wheel 5 ensures the smooth transmission of power, causing the transmission shaft 6 to rotate accordingly. The transmission gear 7 on the transmission shaft 6 then meshes with the transmission gear ring 9 on the receiving shaft 8, driving the transmission gear ring 9 to rotate. Due to the meshing design of the guide tooth plate 10 and the transmission gear ring 9, the rotation of the transmission gear ring 9 will cause the guide tooth plates 10 on both sides to move in opposite directions. The movement of the guide tooth plates 10 is transmitted through the guide rod 12. The guide block 13 is converted into linear motion, which in turn pushes one side of the annular clamp 14 closer to the cylindrical workpiece. At the same time, the other side of the annular clamp 14 moves synchronously in opposite directions through the sliding block 17 on the sliding rod 16. In this way, the two annular clamps 14 can effectively and evenly clamp and fix the cylindrical workpiece. In addition, the start drive component can drive the rotation component to rotate through the transmission component, and the rotation component can drive the cylindrical workpiece to rotate together, which provides great convenience for subsequent processing operations and significantly improves processing efficiency. In summary, this fixture not only achieves stable clamping of the cylindrical workpiece, but also improves processing efficiency through the rotation function.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention 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 invention.

Claims

1. A cylindrical workpiece fixture, comprising a support platform (1), characterized in that: It also includes an adjusting wheel (2), a worm (4), a worm wheel (5), a drive shaft (6), a drive gear (7), a receiving shaft (8), a drive gear ring (9), a guide tooth plate (10), a guide groove (11), a guide rod (12), a guide block (13), an annular clamp (14), a sliding rail (15), a sliding rod (16), a sliding block (17), a rotating assembly, a drive assembly, a transmission assembly, and a collecting assembly. A worm (4) is provided on the inner wall of the support platform (1), and an adjusting wheel (2) is provided at one end of the worm (4). A drive shaft (6) is provided on the inner wall of the platform (1), and a worm wheel (5) is provided on the side wall of the drive shaft (6). The worm (4) meshes with the worm wheel (5). A drive gear (7) is provided on the side wall of the drive shaft (6). A receiving shaft (8) is provided on the inner wall of the support platform (1) of the adjusting wheel (2). A drive gear ring (9) is provided on the side wall of the receiving shaft (8). The drive gear (7) meshes with the drive gear ring (9). Two sets of guide grooves (11) are provided inside both sides of the support platform (1). A guide is provided inside the guide groove (11). The guide rod (12) has a guide block (13) on its side wall, and the guide block (13) is slidably connected to the guide rod (12). Two sets of sliding rails (15) are provided on the upper sides of both sides of the support platform (1). A sliding rod (16) is provided inside the sliding rail (15). A sliding block (17) is provided on the side wall of the sliding rod (16), and the sliding block (17) is slidably connected to the sliding rod (16). Two sets of annular clamps (14) are provided on the upper sides of both sides of the support platform (1). One side of the annular clamp (14) is connected to the guide block. (13) is fixedly connected to the top, and the other side of the ring clamp (14) is fixedly connected to the inner wall of the sliding block (17). Two sets of guide tooth plates (10) are provided on both sides of the inside of the support platform (1). The two sets of guide tooth plates (10) are respectively provided on both sides of the transmission tooth ring (9). The guide tooth plates (10) mesh with the transmission tooth ring (9). A rotating component is provided on the top of the support platform (1). A driving component is provided on the top of the support platform (1). A transmission component is provided at the upper end of the driving component. A collecting component is provided on one side of the support platform (1).

2. The cylindrical workpiece fixture according to claim 1, characterized in that: The rotating assembly includes a rotating shaft (101) and a rotating seat (102). The rotating shaft (101) is located above the support platform (1), and the rotating seat (102) is located at the upper end of the rotating shaft (101). The lower end of the rotating shaft (101) is rotatably connected to the upper part of the support platform (1).

3. The cylindrical workpiece fixture according to claim 1, characterized in that: The drive assembly includes a drive shaft (201), a drive motor (202) and a mounting base (203). The mounting base (203) is provided above the support platform (1). The drive motor (202) is provided inside the mounting base (203). The drive shaft (201) is provided at the output end of the drive motor (202).

4. The cylindrical workpiece fixture according to claim 3, characterized in that: The transmission assembly includes a drive disk (301), an arc block (302) and a retaining ring (303). The drive disk (301) is provided at the upper end of the drive shaft (201), and multiple sets of arc blocks (302) are provided on the side wall of the drive disk (301). The retaining ring (303) is provided on the bottom wall of the rotating seat (102).

5. A cylindrical workpiece fixture according to claim 4, characterized in that: The transmission assembly also includes an arc groove (304), and multiple sets of arc grooves (304) are opened on the inner wall of the fixed ring (303). The arc block (302) is rotatably connected to the fixed ring (303) through the arc groove (304).

6. The cylindrical workpiece fixture according to claim 4, characterized in that: The collection component includes a connecting block (401) and a collection box (402). The collection box (402) is provided on one side of the support platform (1), and the connecting block (401) is provided above one side of the collection box (402). There are two sets of connecting blocks (401).

7. A cylindrical workpiece fixture according to claim 6, characterized in that: The collection assembly also includes a connecting shaft (403) and a box cover (404). A connecting shaft (403) is provided between the two sets of connecting blocks (401). A box cover (404) is provided on the side wall of the connecting shaft (403). The box cover (404) is rotatably connected to the collection box (402) through the connecting shaft (403).