Adjustable slender shaft supporting device

Abstract

The utility model provides an adjustable slender shaft supporting device. The adjustable slender shaft supporting device comprises a main body supporting connecting pipe, a main shaft supporting assembly and a cylindrical sleeve extending reducing auxiliary support. The body supporting connecting pipe is a linear cavity pipe, the first end of the body supporting connecting pipe is connected with a lathe spindle, and the second end of the body supporting connecting pipe is connected with a chuck spindle. The main shaft supporting assembly is installed on the main body supporting connecting pipe. The cylindrical sleeve extension reducing auxiliary support is mounted at the first end of the main body support connecting pipe; a slender shaft workpiece to be machined is clamped and arranged in a through cavity space jointly formed by the main body supporting connecting pipe, the lathe spindle and the chuck spindle in a penetrating mode, the spindle supporting assembly is used for assisting in fixing the main body supporting connecting pipe, and the cylindrical sleeve extending reducing auxiliary support is used for prolonging and reducing radial run-out of the slender shaft workpiece to be machined. And the machining precision size of the workpiece is ensured. The device solves the problems of vibration and bending deformation of the slender shaft in the turning process in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, and more specifically, to an adjustable support device for slender shafts. Background Art

[0002] With the development of turning technology in the field of mechanical manufacturing, when turning slender shafts, especially shaft parts with a length-to-diameter ratio greater than 25, the workpieces with poor rigidity and slender shape are prone to sag due to their own weight, and are extremely likely to generate bending deformation when rotating at high speed under the action of centrifugal force and when being turned under the action of cutting force. The greater the bending of the workpiece, the greater the vibration during turning, and the more difficult it is to ensure the surface quality accuracy.

[0003] Traditional process solutions adopt the installation of follower rests, steady rests and other auxiliary supports, but these process devices cannot effectively solve the problems of vibration and deformation of slender shafts during turning.

[0004] In summary, how to solve the problems of vibration and deformation of slender shafts during turning in the prior art is an urgent problem to be solved in the field of turning technology in mechanical manufacturing. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide an adjustable support device for slender shafts, so as to at least solve the problems of vibration and deformation of slender shafts during turning in the prior art.

[0006] To achieve the above purpose, the utility model provides an adjustable support device for slender shafts, including: a main body support connecting pipe, which is a "one"-shaped cavity pipe, with the first end of the main body support connecting pipe connected to the lathe spindle and the second end connected to the chuck spindle; a spindle support assembly installed on the main body support connecting pipe; a cylindrical sleeve extended variable-diameter auxiliary support installed at the first end of the main body support connecting pipe; wherein, the workpiece of the to-be-machined slender shaft is arranged in the through cavity space jointly formed by the main body support connecting pipe, the lathe spindle and the chuck spindle, the spindle support assembly is used to assist in fixing the main body support connecting pipe, and the cylindrical sleeve extended variable-diameter auxiliary support is used to extend the machining dimension of the workpiece of the to-be-machined slender shaft.

[0007] Further, a threaded structure is provided at the second end of the main body support connecting pipe, and the spindle support assembly includes: a spindle front-end positioning taper sleeve, which is connected to the second end of the main body support connecting pipe through the threaded structure and is used to fix the lathe spindle.

[0008] Further, the spindle support assembly further includes: a spindle rear-end sleeve-type auxiliary support, which is slidably sleeved on the first end of the main body support connecting pipe; wherein, one end of the spindle rear-end sleeve-type auxiliary support is a shoulder structure.

[0009] Furthermore, the spindle support assembly further comprises: a first machine tool spindle, which is sleeved on the first end of the main support connecting tube and is adjacent to the sleeve-type auxiliary support at the rear end of the spindle, and the first machine tool spindle is connected to the shoulder structure through the inner diameter of the cylinder body. A second machine tool spindle, which is sleeved on the second end of the main support connecting tube; wherein the sleeve-type auxiliary support at the rear end of the spindle is used to fix the first machine tool spindle, and the first machine tool spindle and the second machine tool spindle are used to limit the main support connecting tube, and the first machine tool spindle (23) and the second machine tool spindle (24) are the spindles of the lathe itself.

[0010] Furthermore, the length of the shoulder structure is 15MM.

[0011] Furthermore, the cylindrical sleeve is extended and the diameter-changing support first end is installed on the first end of the main body support connecting pipe by screws.

[0012] Furthermore, the length of the main body support connecting pipe is 2300MM.

[0013] The adjustable slender shaft support device using the technical solution of the utility model includes a main body support connecting tube, a spindle support assembly, and a cylindrical sleeve extension and diameter-changing attached support; the main body support connecting tube is an "I"-shaped cavity tube, the first end of the main body support connecting tube is connected to the lathe spindle, and the second end is connected to the chuck spindle; the spindle support assembly is installed on the main body support connecting tube; the cylindrical sleeve extension and diameter-changing attached support is installed on the first end of the main body support connecting tube; wherein, the slender shaft workpiece to be processed is arranged in the through cavity space formed by the main body support connecting tube, the lathe spindle and the chuck spindle, the spindle support assembly is used to assist in fixing the main body support connecting tube, and the cylindrical sleeve extension and diameter-changing attached support is used to extend the processing size of the slender shaft workpiece to be processed. The device solves the problems of vibration and bending deformation of the slender shaft during the turning process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a schematic structural diagram of an adjustable slender shaft support device that can be selected according to an embodiment of the utility model.

[0016] The above drawings include the following reference numerals:

[0017] 10. Main support connecting pipe; 20. Spindle support assembly; 21. Spindle front end positioning taper sleeve; 22. Spindle rear end sleeve type attached support; 23. First machine tool spindle; 24. Second machine tool spindle; 30. Cylindrical sleeve extension reducer attached support. DETAILED DESCRIPTION

[0018] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in conjunction with the embodiments.

[0019] The adjustable slender shaft support device according to an embodiment of the present utility model, as Figure 1 shown, includes a main body support connecting pipe 10, a main shaft support assembly 20, and a cylindrical sleeve extension variable diameter auxiliary support 30; the main body support connecting pipe 10 is a "one"-shaped cavity pipe, the first end of the main body support connecting pipe 10 is connected to the lathe main shaft, and the second end is connected to the chuck main shaft; the main shaft support assembly 20 is installed on the main body support connecting pipe 10; the cylindrical sleeve extension variable diameter auxiliary support 30 is installed at the first end of the main body support connecting pipe 10; wherein, the workpiece of the slender shaft to be processed is arranged in the through cavity space jointly formed by the main body support connecting pipe 10, the lathe main shaft, and the chuck main shaft, the main shaft support assembly 20 is used to assist in fixing the main body support connecting pipe 10, and the cylindrical sleeve extension variable diameter auxiliary support 30 is used to extend the processing size of the workpiece of the slender shaft to be processed. It can be understood that when the device is running, the workpiece of the slender shaft to be processed is arranged in the through cavity space jointly formed by the main body support connecting pipe 10, the lathe main shaft, and the chuck main shaft, and the through cavity space is used to fix the workpiece of the slender shaft to be processed to prevent the workpiece of the slender shaft to be processed from swinging violently due to vibration during the turning process, resulting in deformation. The main shaft support assembly 20 is used to assist in fixing the main body support connecting pipe 10, so as to ensure the overall tight connection of the entire device. The cylindrical sleeve extension variable diameter auxiliary support 30 is used to extend the processing size of the workpiece of the slender shaft to be processed. When the size of the workpiece of the slender shaft to be processed changes, the cylindrical sleeve extension variable diameter auxiliary support 30 can be replaced to adapt to the size of the workpiece of the slender shaft to be processed. This device solves the problems of vibration and bending deformation of the slender shaft during turning in the prior art.

[0020] Specifically, as Figure 1 shown, the second end of the main body support connecting pipe 10 is provided with a threaded structure. The main shaft support assembly 20 includes: a main shaft front-end positioning cone sleeve 21, and the main shaft front-end positioning cone sleeve 21 is connected to the second end of the main body support connecting pipe 10 through the threaded structure. The main shaft front-end positioning cone sleeve 21 is used to fix the lathe main shaft. It can be understood that during the specific implementation of the device, the main shaft front-end positioning cone sleeve 21 is connected to the main body support connecting pipe 10 through the threaded structure to form a tightly connected cavity structure, and the workpiece of the slender shaft to be processed passes through the tightly connected cavity structure, so as to achieve the effect of fixing the lathe main shaft.

[0021] Specifically, the main shaft support assembly 20 further includes: a sleeve-like attached support 22 at the rear end of the main shaft. The sleeve-like attached support 22 at the rear end of the main shaft is slidably sleeved on the first end of the main body support connecting pipe 10. Wherein, one end of the sleeve-like attached support 22 at the rear end of the main shaft is a shoulder structure. It can be understood that during the specific implementation of the device, the sleeve-like attached support 22 at the rear end of the main shaft is slidably sleeved on the main body support connecting pipe 10 to achieve the effect of limiting the main body support connecting pipe 10.

[0022] Specifically, the main shaft support assembly 20 further includes: a first machine tool main shaft 23, which is sleeved on the first end of the main body support connecting pipe 10 and is adjacent to the sleeve-like attached support 22 at the rear end of the main shaft. The first machine tool main shaft 23 is connected to the shoulder structure through the inner diameter of the cylinder. A second machine tool main shaft 24, which is sleeved on the second end of the main body support connecting pipe 10. Wherein, the sleeve-like attached support 22 at the rear end of the main shaft is used to fix the first machine tool main shaft 23. The first machine tool main shaft 23 and the second machine tool main shaft 24 are used to limit the main body support connecting pipe 10. The first machine tool main shaft (23) and the second machine tool main shaft (24) are the main shafts of the lathe itself. It can be understood that during the specific implementation of the device, the sleeve-like attached support 22 at the rear end of the main shaft fixes the first machine tool main shaft 23. The first machine tool main shaft 23 and the second machine tool main shaft 24 are installed at both ends of the main body support connecting pipe 10, so as to achieve the effect of further limiting the main body support connecting pipe 10.

[0023] Specifically, the length of the shoulder structure is 15 MM. It can be understood that during the specific implementation of the device, the shoulder structure can be connected to the first machine tool main shaft 23 to achieve the effect of fixing the first machine tool main shaft 23.

[0024] Specifically, the first end of the cylindrical sleeve extension and variable diameter attached support 30 is installed on the first end of the main body support connecting pipe 10 through screws. It can be understood that during the specific implementation of the device, the cylindrical sleeve extension and variable diameter attached support 30 is connected to the main body support connecting pipe 10 through screws, so as to achieve the effect that when the size of the workpiece of the to-be-machined slender shaft changes, the cylindrical sleeve extension and variable diameter attached support 30 can be replaced to adapt to the size of the workpiece of the to-be-machined slender shaft.

[0025] Specifically, the length of the main body support connecting pipe 10 is 2300 MM. It can be understood that during the specific implementation of the device, the main body support connecting pipe 10 and the main shaft support assembly 20 form a cavity structure to limit the workpiece of the to-be-machined slender shaft, so as to avoid the problems of vibration and bending deformation of the workpiece of the to-be-machined slender shaft during the turning process.

[0026] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable slender shaft support device, characterized in that: include: A main body support connecting tube (10), the main body support connecting tube (10) being an "I"-shaped cavity tube, the main body support connecting tube (10) having a first end connected to a lathe spindle and a second end connected to a chuck spindle; A main shaft support assembly (20), the main shaft support assembly (20) being mounted on the main body support connecting pipe (10); A cylindrical sleeve extending and reducing the diameter and attaching a support (30), wherein the cylindrical sleeve extending and reducing the diameter and attaching a support (30) is mounted on a first end of the main body support connecting pipe (10); The slender shaft workpiece to be processed is arranged in a through cavity space formed by the main body support connecting tube (10), the lathe spindle and the chuck spindle, the spindle support assembly (20) is used to assist in fixing the main body support connecting tube (10), and the cylindrical sleeve extension variable diameter attached support (30) is used to extend the processing size of the slender shaft workpiece to be processed.

2. The adjustable elongated shaft support device according to claim 1, characterized in that: The second end of the main body support connecting pipe (10) is provided with a threaded structure, and the main shaft support assembly (20) comprises: A spindle front end positioning taper sleeve (21), the spindle front end positioning taper sleeve (21) being connected to the second end of the main body support connecting tube (10) via the threaded structure, the spindle front end positioning taper sleeve (21) being used to fix the lathe spindle.

3. The adjustable elongated shaft support device according to claim 2, characterized in that: The spindle support assembly (20) further comprises: A main shaft rear end sleeve-type attached support (22), the main shaft rear end sleeve-type attached support (22) being slidably mounted on the first end of the main body support connecting tube (10); Wherein, one end of the main shaft rear end sleeve-like attached support (22) is a shaft shoulder structure.

4. The adjustable elongated shaft support device according to claim 3, characterized in that: The spindle support assembly (20) further comprises: A first machine tool spindle (23), sleeved on a first end of the main body support connecting tube (10) and adjacent to the spindle rear end sleeve-type attached support (22), the first machine tool spindle (23) being connected to the shaft shoulder structure via the inner diameter of the cylinder body; A second machine tool spindle (24), the second machine tool spindle (24) being sleeved on a second end of the main body support connecting tube (10); The spindle rear end sleeve-like attached support (22) is used to fix the first machine tool spindle (23); the first machine tool spindle (23) and the second machine tool spindle (24) are used to limit the main body support connecting tube (10); the first machine tool spindle (23) and the second machine tool spindle (24) are the spindles of the lathe itself.

5. The adjustable elongated shaft support device according to claim 4, characterized in that: The length of the shoulder structure is 15MM.

6. The adjustable elongated shaft support device according to claim 1, characterized in that: The first end of the cylindrical sleeve extension variable diameter attached support (30) is mounted on the first end of the main body support connecting pipe (10) by means of screws.

7. The adjustable elongated shaft support device according to claim 1, characterized in that: The length of the main body support connecting pipe (10) is 2300 mm.

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