Gear hobbing machine main shaft with high-rigidity built-in oil cylinder

Abstract

The utility model provides a gear hobbing machine main shaft with a high-rigidity built-in oil cylinder, which relates to the field of gear hobbing machine oil cylinders, and comprises a bolt shaft and a pull rod, the bolt shaft is arranged in the main shaft oil cylinder, the main shaft oil cylinder is positioned in a main shaft shell, the pull rod is arranged in a main shaft core, one end of the pull rod extends into the main shaft oil cylinder, penetrates through the bolt shaft and is connected with a locking nut, and the other end of the pull rod is connected with the locking nut. A belleville spring abutting against the gasket is installed in the spindle core, and the gasket and the locking nut are distributed on the two sides of the spindle core. A traditional straight pin is changed into a structure that the pull rod penetrates through the plug pin shaft, the middle of the plug pin shaft is enlarged to be in a spherical state, and the small hole for the pull rod to penetrate through is formed, so that the contact area is increased, the push-pull rigidity can be more stable and improved, and the overall application effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of hobbing machine cylinders, in particular to a hobbing machine spindle with a high-rigidity built-in cylinder. Background Art

[0002] As a core mechanical structure part of a hobbing machine, the hobbing machine spindle with a high-rigidity built-in cylinder ingeniously combines the dual advantages of high strength and built-in cylinder. Its design purpose is to greatly improve the operation accuracy, running stability and production efficiency of the hobbing machine.

[0003] However, in the application of the prior art, in order to achieve the driving function of the cylinder, especially the key link of pushing the piston, a direct sales pin is usually used as the transmission means. The working principle of the direct sales pin is to directly penetrate the piston rod and control the propulsion operation of the cylinder in a physical contact manner. However, this pushing method has a significant limitation. The direct sales pin needs to directly penetrate the piston rod, which not only weakens the structural strength of the piston rod, but also inevitably reduces the rigidity performance of the structural parts. Therefore, a hobbing machine spindle with a high-rigidity built-in cylinder is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a hobbing machine spindle with a high-rigidity built-in cylinder. By changing the traditional direct sales pin into a structure where a pull rod passes through a plug pin shaft, the middle part of the plug pin shaft is enlarged and constructed into a spherical state, and a small hole for the pull rod to pass through is provided. In this way, while increasing the contact area, it can be more stable, improving the push-pull rigidity and ensuring the overall application effect.

[0005] In order to solve the above technical problems, the utility model solves the problem of poor strength when the hobbing machine spindle with a high-rigidity built-in cylinder is applied through the following technical solutions.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hobbing machine spindle with a high-rigidity built-in cylinder,

[0008] A plug pin shaft, which is arranged inside the spindle cylinder, and the spindle cylinder is located inside the spindle housing;

[0009] A pull rod, which is arranged inside the spindle core. One end of the pull rod extends into the spindle cylinder, passes through the plug pin shaft and is connected with a locking nut;

[0010] A disc spring that abuts against a gasket is installed inside the spindle core, and the gasket and the locking nut are distributed on both sides of the spindle core.

[0011] Preferably, the plug pin shaft is installed on the gland and is pushed by the spindle cylinder.

[0012] Preferably, the middle part of the insertion pin shaft is enlarged and provided with a small hole for the pull rod to pass through.

[0013] Preferably, the middle part of the insertion pin shaft is configured in a spherical state.

[0014] Preferably, the other end of the pull rod is connected to a pull claw, the pull pin of the pull claw is connected to the tool rod, and a tool is installed on the tool rod.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] The hobbing machine spindle with a high-rigidity built-in oil cylinder provided by this application changes the traditional direct pin into a structure where a pull rod passes through an insertion pin shaft. The middle part of the insertion pin shaft is enlarged and configured in a spherical state, and is provided with a small hole for the pull rod to pass through. In this way, while increasing the contact area, it can be more stable, improving the push-pull rigidity and ensuring the overall application effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the front view sectional structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the left side view sectional structure of the present utility model;

[0021] Figure 4 It is a schematic diagram of the partial structure of the bottom view sectional view of the present utility model;

[0022] Figure 5 It is a schematic diagram of the contact structure between the spindle core and the gland of the present utility model;

[0023] Figure 6 It is a schematic diagram of the split structure inside the spindle core of the present utility model;

[0024] Figure 7 It is a schematic diagram of the structure of the insertion pin shaft of the present utility model.

[0025] Explanation of drawing numbers: 1. Insertion pin shaft; 2. Spindle oil cylinder; 3. Pull rod; 4. Spindle core; 5. Locking nut; 6. Disc spring; 7. Gasket; 8. Gland; 9. Pull claw; 10. Spindle housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0027] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be used in other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0028] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or position indicated by terms such as "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or position relationship shown in the drawings. It is only for the convenience of simplifying the description of the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0029] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the number. Embodiment

[0030] Please refer to Figure 1 - Figure 7 , a hobbing machine spindle with a high-rigidity built-in oil cylinder, including a spindle housing 10, a spindle oil cylinder 2, a spindle core 4, etc. The spindle oil cylinder 2 and the spindle core 4 are arranged in the spindle housing 10. An insertion pin shaft 1 and a gland 8 are installed in the spindle oil cylinder 2. The insertion pin shaft 1 is installed on the gland 8. The spindle oil cylinder 2 can control the movement of the insertion pin shaft 1 by pushing the gland 8; inside the spindle core 4, a pull rod 3, a gasket 7, a disc spring 6, etc. are installed. One end of the pull rod 3 can penetrate into the spindle oil cylinder 2. The pull rod 3 passes through the insertion pin shaft 1 in the spindle oil cylinder 2 and is connected with a lock nut 5. The disc spring 6 is located outside the pull rod 3 and also extends into the spindle oil cylinder 2. The gasket 7 is at the end of the disc spring 6. The gasket 7 is pressed against the insertion pin shaft 1 by the thrust of the disc spring 6. Therefore, the gasket 7 and the lock nut 5 are distributed on both sides of the spindle core 4. The spindle oil cylinder 2 pushes the pull rod 3 through the insertion pin shaft 1 and then relies on the thrust of the disc spring 6 to reset.

[0031] The design of the pull rod 3 passing through the insertion pin shaft 1 in this application increases the structure of the insertion pin shaft 1 and can provide rigidity to withstand greater thrust.

[0032] In this application, the middle part of the insertion pin shaft 1 is enlarged and configured in a spherical state, and a small hole through which the pull rod 3 passes is provided in the middle of the spherical state. The two sides of the spherical state are flattened to facilitate the abutment of the gasket 7 and the locking nut 5.

[0033] It should be noted that a pull claw 9 is also provided inside the main shaft core 4 and is connected to the pull rod 3. A tool rod for installing a tool is provided outside the main shaft housing 10, and the tool rod is connected to the pull claw 9 at the port of the main shaft core 4.

[0034] The connection relationship between the pull rod 3 and the insertion pin shaft 1 set in this application increases the contact area and is more stable during pushing, improving the push-pull rigidity.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the said principles.

Claims

1. A gear hobbing machine spindle with a high-rigidity built-in oil cylinder, characterized in that: A latch shaft (1) is arranged inside a spindle cylinder (2), wherein the spindle cylinder (2) is located inside a spindle housing (10); A pull rod (3) is arranged in the spindle shaft core (4), one end of the pull rod (3) extends into the spindle cylinder (2), passes through the latch shaft (1) and is connected to a locking nut (5); A butterfly spring (6) is installed in the spindle core (4) to press against a gasket (7), and the gasket (7) and the locking nut (5) are distributed on both sides of the spindle core (4).

2. The gear hobbing machine spindle with a high-rigidity built-in oil cylinder according to claim 1, characterized in that: The latch shaft (1) is mounted on the pressure cover (8) and is pushed by the spindle cylinder (2).

3. The gear hobbing machine spindle with a high-rigidity built-in oil cylinder according to claim 2, characterized in that: The middle portion of the latch shaft (1) is enlarged and provided with a small hole for the pull rod (3) to pass through.

4. The gear hobbing machine spindle with a high-rigidity built-in oil cylinder according to claim 2, characterized in that: The middle part of the latch shaft (1) is constructed in a spherical state.

5. The gear hobbing machine spindle with a high-rigidity built-in oil cylinder according to claim 4, characterized in that: The other end of the pull rod (3) is connected to a pull claw (9), and the upper end of the pull claw (9) is connected to a tool rod on which a tool is mounted.

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