Headstock assembly

Abstract

The utility model discloses a headstock assembly, which relates to the technical field of machine tools and comprises a shell, a polish rod and a change gear. The shell comprises headstock inner and outer plates located on the two sides and a detachable headstock supporting plate located at the bottom, and supporting columns connecting the two headstock inner and outer plates are arranged on the upper portions of the two headstock inner and outer plates. The polish rod penetrates through the two headstock inner and outer plates, the two ends of the polish rod extend out, a screw rod middle support wrapping the polish rod is arranged on one side, a screw rod left support wrapping the polish rod is arranged on the other side, a screw rod connecting sleeve is further arranged on the outer side of the screw rod middle support, and the screw rod connecting sleeve is connected with the polish rod in the screw rod connecting sleeve through an elastic cylindrical pin; a lead screw left support sleeve is further arranged on the outer side of the lead screw left support, and the tail end of the polish rod penetrates through the lead screw left support sleeve and then is connected with a change gear. The device is compact in structure and convenient to install and maintain; and a detachable design is adopted, so that the flexibility and universality of the assembly are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, and specifically refers to a headstock assembly. Background Art

[0002] In the field of machine tool manufacturing, as an important part of a machine tool, the rationality and stability of the structure design of the headstock directly affect the overall performance and machining accuracy of the machine tool. Traditional headstock assemblies often adopt the casting method and have problems such as complex structure, cumbersome installation, and inconvenient maintenance, making it difficult to meet the requirements of modern machine tools for high precision, high efficiency, and easy maintenance. Therefore, developing a new type of headstock assembly to simplify the structure, improve the installation efficiency and operating stability has become an urgent problem to be solved in this field. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an improved headstock assembly to achieve the lightweight and modularization of the assembly, and improve the installation convenience and operating stability.

[0004] To solve the above technical problems, the technical solution provided by the utility model is: a headstock assembly, including a housing, a smooth rod, and a hanger gear; the housing includes inner and outer headstock plates on both sides and a detachable headstock support plate at the bottom, and support columns connecting the two are provided on the upper parts of the two inner and outer headstock plates;

[0005] The smooth rod penetrates through the two inner and outer headstock plates and both ends extend out. On one side, there is a middle support for the lead screw wrapped around the smooth rod, and on the other side, there is a left support for the lead screw wrapped around the smooth rod. A lead screw connection sleeve is also provided outside the middle support for the lead screw, and the lead screw connection sleeve and the smooth rod inside it are connected by an elastic cylindrical pin; a left sleeve for the lead screw is also provided outside the left support for the lead screw, and the end of the smooth rod passes through the left sleeve for the lead screw and then connects to the hanger gear.

[0006] Further, bed body fixing rings are provided on the inner sides of the two inner and outer headstock plates.

[0007] Further, a smooth rod shield connecting the two and sleeved on the smooth rod is provided between the two bed body fixing rings.

[0008] Further, a grooved pin penetrating the side wall of the lead screw connection sleeve is provided on the lead screw connection sleeve, and a snap ring is provided on the grooved pin.

[0009] Further, a lead screw spacer sleeved on the smooth rod is provided between the hanger gear and the left sleeve for the lead screw.

[0010] Further, a flat key is provided between the hanger gear and the smooth rod.

[0011] The advantages of the utility model compared with the prior art are as follows:

[0012] 1. Compact structure, facilitating installation and maintenance.

[0013] 2. Adopting a detachable design, improving the flexibility and versatility of the components.

[0014] 3. Adding a bed body fixing ring and a lead screw guard, enhancing the stability and safety of the components.

[0015] 4. Introducing structures such as flat keys and snap rings, improving the transmission accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view structural schematic diagram of a headstock assembly of the present utility model.

[0017] Figure 2 is the rear view structural schematic diagram of a headstock assembly of the present utility model.

[0018] Figure 3 is the side view structural schematic diagram of a headstock assembly of the present utility model.

[0019] Figure 4 is Figure 1 the sectional view at A - A in

[0020] As shown in the figure: 1. Outer shell, 2. Lead screw, 3. Hanging wheel gear, 4. Inner and outer plates of the headstock, 5. Headstock support plate, 6. Support column, 7. Middle support of the lead screw, 8. Left support of the lead screw, 9. Lead screw connecting sleeve, 10. Elastic cylindrical pin, 11. Left support sleeve of the lead screw, 12. Bed body fixing ring, 13. Lead screw guard, 14. Grooved pin, 15. Snap ring, 16. Lead screw spacer, 17. Flat key, 18. Press - fitting type grease cup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The following further elaborates on a headstock assembly of the present utility model with reference to the accompanying drawings.

[0024] Combined with the attached Figures 1-4 , the specific implementation process of a headstock assembly of the present utility model is as follows:

[0025] A headstock assembly includes a housing 1, a smooth rod 2 and a hanger gear 3. The housing 1 is composed of inner and outer headstock plates 4 on both sides and a detachable headstock support plate 5 at the bottom, facilitating the installation and maintenance of the assembly. Support columns 6 are provided on the upper parts of the inner and outer headstock plates 4 to connect the outer plates on both sides and enhance the overall stability of the housing 1.

[0026] The smooth rod 2 penetrates through the two inner and outer headstock plates 4 and extends out at both ends, serving as the main carrier of the transmission components. A lead screw middle bracket 7 is provided on one side of the smooth rod 2, which wraps around the outside of the smooth rod 2 to support and fix the smooth rod 2. A lead screw connection sleeve 9 is provided outside the lead screw middle bracket 7, and is firmly connected to the smooth rod 2 through an elastic cylindrical pin 10. A lead screw left bracket 8 is provided on the other side of the smooth rod 2, also wrapping around the outside of the smooth rod 2 to further support the smooth rod 2. A lead screw left bracket sleeve 11 is provided outside the lead screw left bracket 8, and the end of the smooth rod 2 passes through this bracket sleeve and then connects to the hanger gear 3 to form a complete transmission chain.

[0027] To enhance the stability and safety of the headstock assembly, bed body fixing rings 12 are provided on the inner sides of the two inner and outer headstock plates 4 to firmly fix the headstock on the machine tool bed body. At the same time, a smooth rod guard 13 is provided between the two bed body fixing rings 12, and this guard wraps around the outside of the smooth rod 2, which not only protects the smooth rod 2 from external interference but also enhances the overall aesthetics of the assembly.

[0028] On the lead screw connection sleeve 9, a grooved pin 14 penetrating its side wall is provided, and a snap ring 15 is provided on the grooved pin 14 to prevent the lead screw connection sleeve 9 from loosening or falling off during operation and improve the reliability of the transmission.

[0029] In addition, to reduce vibration and noise during transmission and improve transmission accuracy, a lead screw spacer sleeve 16 is provided between the change gear 3 and the left support sleeve 11 of the lead screw in this device. This spacer sleeve is sleeved on the optical rod 2 and plays a role of buffering and isolation. At the same time, a flat key 17 is also provided between the change gear 3 and the optical rod 2 to ensure tight fit and stable transmission between the two.

[0030] To facilitate lubrication and maintenance of the headstock assembly, a press-fit grease cup 18 is provided on the middle support 7 of the lead screw in this device, which can regularly inject lubricating oil into the interior of the assembly to reduce wear and extend service life.

[0031] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the gist of the creation of the present utility model, they design similar structural modes and embodiments to this technical solution without creative efforts, which shall fall within the protection scope of the present utility model.

Claims

1. A headstock assembly, characterized in that: It includes a housing (1), a polished rod (2), and a change gear (3); the housing (1) includes headstock inner and outer plates (4) on both sides and a detachable headstock support plate (5) at the bottom, and support columns (6) connecting the two are provided at the upper parts of the two headstock inner and outer plates (4); the polished rod (2) penetrates through the two headstock inner and outer plates (4) and both ends extend out. A middle support for the lead screw (7) wrapped around the outside of the polished rod (2) is provided on one side, and a left support for the lead screw (8) wrapped around the outside of the polished rod (2) is provided on the other side. A lead screw connection sleeve (9) is further provided on the outside of the middle support for the lead screw (7), and the lead screw connection sleeve (9) and the polished rod (2) inside it are connected by an elastic cylindrical pin (10); a left sleeve for the lead screw (11) is further provided on the outside of the left support for the lead screw (8), and the end of the polished rod (2) passes through the left sleeve for the lead screw (11) and then connects to the change gear (3).

2. The headstock assembly according to claim 1, characterized in that: Bed body fixing rings (12) are provided on the inner sides of the two headstock inner and outer plates (4).

3. The headstock assembly according to claim 2, characterized in that: A polished rod guard (13) connecting the two and sleeved around the polished rod (2) is provided between the two bed body fixing rings (12).

4. The headstock assembly according to claim 3, wherein: A grooved pin (14) penetrating through its side wall is provided on the lead screw connection sleeve (9), and a snap ring (15) is provided on the grooved pin (14).

5. The headstock assembly according to claim 4, characterized in that: A lead screw spacer sleeve (16) sleeved on the polished rod (2) is provided between the change gear (3) and the left sleeve for the lead screw (11).

6. The headstock assembly according to claim 5, characterized in that: A flat key (17) is provided between the change gear (3) and the polished rod (2).

7. The headstock assembly according to claim 6, characterized in that: A press-fitted grease cup (18) is provided on the middle support for the lead screw (7).

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