阅读说明：本技术 悬挂式主轴箱及机床 (Suspension type main spindle box and machine tool ) 是由 谭勇 苏辉南 于 2021-07-23 设计创作，主要内容包括：本发明提供了一种悬挂式主轴箱及机床,包括前壁、后壁、第一侧壁、第二侧壁、顶壁及底板；所述第一侧壁的一端设置在所述后壁上,所述第一侧壁远离所述后壁的一端设置在所述前壁；所述底板的一端设置在所述后壁上,所述底板远离所述后壁的一端设置在所述前壁上；所述第二侧壁的一端设置在所述后壁上,所述第二侧壁远离所述后壁的一端设置在所述前壁上；所述顶壁的一端设置在所述后壁上,所述顶壁远离所述后壁的一端设置在所述前壁上；所述第一侧壁、所述底板、所述第二侧壁及所述顶壁沿周向依次连接设置。本发明具有悬伸长的特点,并具有优质的刚度,强度与稳定性。(The invention provides a suspension type spindle box and a machine tool, which comprise a front wall, a rear wall, a first side wall, a second side wall, a top wall and a bottom plate, wherein the front wall is provided with a first end and a second end; one end of the first side wall is arranged on the rear wall, and one end, far away from the rear wall, of the first side wall is arranged on the front wall; one end of the bottom plate is arranged on the rear wall, and the end, far away from the rear wall, of the bottom plate is arranged on the front wall; one end of the second side wall is arranged on the rear wall, and one end, far away from the rear wall, of the second side wall is arranged on the front wall; one end of the top wall is arranged on the rear wall, and one end of the top wall, which is far away from the rear wall, is arranged on the front wall; the first side wall, the bottom plate, the second side wall and the top wall are sequentially connected in the circumferential direction. The invention has the characteristic of suspension elongation, and has excellent rigidity, strength and stability.)

1. A suspended spindle box is characterized by comprising a front wall (201), a rear wall (202), a first side wall (203), a second side wall (204), a top wall (205) and a bottom plate (206);

one end of the first side wall (203) is arranged on the rear wall (202), and one end of the first side wall (203) far away from the rear wall (202) is arranged on the front wall (201);

one end of the bottom plate (206) is arranged on the rear wall (202), and one end of the bottom plate (206) far away from the rear wall (202) is arranged on the front wall (201);

one end of the second side wall (204) is arranged on the rear wall (202), and one end of the second side wall (204) far away from the rear wall (202) is arranged on the front wall (201);

one end of the top wall (205) is arranged on the rear wall (202), and one end of the top wall (205) far away from the rear wall (202) is arranged on the front wall (201);

the first side wall (203), the bottom plate (206), the second side wall (204) and the top wall (205) are sequentially connected in the circumferential direction.

2. A suspended headstock according to claim 1, characterized in that the first side wall (203) is provided with a viewing window (207).

3. A suspended headstock according to claim 1, characterized in that the rear wall (202) is provided with a first connecting foot (208), the first side wall (203) being arranged in connection with the rear wall (202) via the first connecting foot (208).

4. A suspended headstock according to claim 1, characterized in that a second connecting foot (209) is provided on the rear wall (202), the second side wall (204) being provided on the rear wall (202) in connection with the second connecting foot (209).

5. The overhead headstock of claim 1, wherein the rear wall (202) is provided with a nut seat (2010).

6. A suspended headstock according to claim 1 characterized in that the rear wall (202) is provided with a balancing seat (2011).

7. A suspended headstock according to claim 1, characterized in that the front wall (201) is provided with a cooling jacket (2012).

8. The hanging headstock according to claim 1, characterized in that the first side wall (203), the second side wall (204), the top wall (205) and the bottom plate (206) are provided with tapered ribs (2013).

9. The hanging headstock of claim 1, characterized in that the first side wall (203), the second side wall (204), the top wall (205), and the bottom plate (206) are each provided with a cross bar (2014).

10. A machine tool comprising a suspended headstock of any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of machine tool machining, in particular to a suspension type spindle box and a machine tool.

Background

The main spindle box is a part for accommodating and installing a main spindle of a machine tool in the machine tool, the machine tool has a great weight, and the machining precision of the machine tool is directly influenced by the performance of the main spindle box. In the current market, the functional requirements for machine tools are more and more extensive, and a horizontal machining device formed by a long Z shaft is urgently needed.

Because the special machine for processing the stainless steel box body is of a horizontal machine tool structure, and the overall dimension of batch pieces to be processed is large, the size of the workbench is increased, and a spindle box with long overhang, good rigidity and good strength is needed.

The patent document with the publication number of CN210208680U discloses an integral type headstock, and it includes the headstock box, driving medium mount pad and headstock base, headstock base fixed connection is on the lathe bed of lathe, be provided with the motor installation cavity on the headstock base, the contact surface of headstock base and lathe bed is base installation face, base installation face extends along vertical direction, the headstock base is kept away from the one end of base installation face is provided with the driving medium mount pad, the lower extreme of driving medium mount pad is provided with the headstock box, the headstock box driving medium mount pad and headstock base adopt lost foam casting integrated into one piece. The patent still has the disadvantage of short overhang distance.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a suspended spindle box and a machine tool.

The invention provides a suspension type spindle box which comprises a front wall, a rear wall, a first side wall, a second side wall, a top wall and a bottom plate, wherein the front wall is provided with a first end face and a second end face;

one end of the first side wall is arranged on the rear wall, and one end, far away from the rear wall, of the first side wall is arranged on the front wall;

one end of the bottom plate is arranged on the rear wall, and the end, far away from the rear wall, of the bottom plate is arranged on the front wall;

one end of the second side wall is arranged on the rear wall, and one end, far away from the rear wall, of the second side wall is arranged on the front wall;

one end of the top wall is arranged on the rear wall, and one end of the top wall, which is far away from the rear wall, is arranged on the front wall;

the first side wall, the bottom plate, the second side wall and the top wall are sequentially connected in the circumferential direction.

Preferably, the first side wall is provided with an observation window.

Preferably, the rear wall is provided with a first connecting leg, and the first side wall is connected to the rear wall through the first connecting leg.

Preferably, the rear wall is provided with a second connecting leg, and the second side wall is connected and arranged on the rear wall through the second connecting leg.

Preferably, the rear wall is provided with a nut seat.

Preferably, the rear wall is provided with a balance seat.

Preferably, the front wall is provided with a cooling water jacket.

Preferably, the first side wall, the second side wall, the top wall and the bottom plate are all provided with tapered rib plates.

Preferably, the first side wall, the second side wall, the top wall and the bottom plate are all provided with transverse ribs.

The invention also provides a machine tool which comprises the suspension type spindle box.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention has the structural characteristics of closed shell and large overhang distance, and is cast and molded;

2. the invention is provided with reasonable reinforcing rib walls, so that the spindle box is completely suitable for the long-stroke shaft extension working condition and has high-quality rigidity, strength and stability;

3. the invention is provided with the gravity balance device, and has excellent dynamic performance;

4. the invention is provided with the cooling water jacket, and has good cooling effect on the main shaft of the machine tool.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of a suspended spindle head according to the present invention;

fig. 2 is a cross-sectional view of a suspended spindle head of the present invention.

The figures show that:

front wall 201 first connecting leg 208

Second connecting leg 209 of rear wall 202

First sidewall 203 nut seat 2010

Second sidewall 204 balance block 2011

Top wall 205 cooling jacket 2012

Tapered rib 2013 of bottom plate 206

Horizontal rib 2014 of observation window 207

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

As shown in fig. 1 and 2, the suspension type headstock of the present invention includes a front wall 201, a rear wall 202, a first side wall 203, a second side wall 204, a top wall 205 and a bottom plate 206, wherein one end of the first side wall 203 is disposed on the rear wall 202, one end of the first side wall 203 away from the rear wall 202 is disposed on the front wall 201, one end of the bottom plate 206 away from the rear wall 202 is disposed on the rear wall 202, one end of the second side wall 204 away from the rear wall 202 is disposed on the front wall 201, one end of the top wall 205 is disposed on the rear wall 202, one end of the top wall 205 away from the rear wall 202 is disposed on the front wall 201, and the first side wall 203, the bottom plate 206, the second side wall 204 and the top wall 205 are sequentially connected in a circumferential direction.

The rear wall 202 is provided with a first connecting leg 208, the first side wall 203 is connected to the rear wall 202 through the first connecting leg 208, the rear wall 202 is provided with a second connecting leg 209, and the second side wall 204 is connected to the rear wall 202 through the second connecting leg 209.

The first side wall 203 is provided with an observation window 207, the rear wall 202 is provided with a nut seat 2010, the rear wall 202 is provided with a balance seat 2011, the front wall 201 is provided with a cooling water jacket 2012, the first side wall 203, the second side wall 204, the top wall 205 and the bottom plate 206 are all provided with tapered rib plates 2013, and the first side wall 203, the second side wall 204, the top wall 205 and the bottom plate 206 are all provided with transverse ribs 2014.

The invention also provides a machine tool which comprises the suspension type spindle box.

In a preferred embodiment, the main body of the spindle box is similar to a regular tetrahedron conical structure, the surface of the outer wall mainly comprises a rear wall, a conical side wall, a conical top wall and a bottom plate, a regular tetrahedron close to a seal is formed, connecting support legs are symmetrically designed on two sides of the rear wall, the number of the connecting support legs is four, the rear wall is of a central symmetrical structure, observation windows and through hole structures are designed on the conical side wall and the conical top wall, the size of the through hole structures is suitable, a nut seat and a balance seat are designed on the rear side of the conical top wall, the nut seat is formed by precisely machining through a machine tool after being cast, and the surface roughness and the dimensional precision are good. The nut seat and the balance seat are bilaterally symmetrical about the central line of the spindle box and are close to the gravity action point of the spindle box.

The inner cavity of the suspension type spindle box is of a hollow structure and is provided with reasonable reinforcing ribs, the front end of the inner cavity of the spindle box is provided with a cooling water jacket, and a machine tool is adopted to perform finish machining after casting for the position of a machine tool spindle, so that the surface roughness, the dimensional tolerance and the form and position tolerance are good. A plurality of conical rib plates and transverse ribs are designed at the middle rear end of the inner cavity of the main spindle box, and each rib plate is proper in size and reasonable in position.

Principle of operation：

The four connecting support legs on the back wall are designed to be provided with the slide block guide rail and are rigidly connected with the upright post, so that the whole spindle box is supported. And a nut screw rod is arranged on a nut seat at the rear side of the conical top wall, so that the whole spindle box is driven to produce up-and-down linear motion. A balance hydraulic cylinder is arranged on a balance seat beside the nut seat to balance the gravity of the main spindle box part, so that the dynamic response performance of the main spindle box is enhanced, and the service life of the nut screw rod is prolonged. A machine tool spindle is arranged in a cooling water jacket at the front end of a spindle box, circulating cooling oil is filled in the cooling water jacket, and the cooling water jacket aims to cool the machine tool spindle so as to ensure that parts such as bearings rotating at high speed in the machine tool spindle achieve the optimal working environment and maintain the high precision and the long service life of the spindle. Because the main spindle box has a large overhang distance, a plurality of conical rib plates and transverse ribs optimized by FEA are designed at the middle and rear sections of the inner cavity of the main spindle box, so that the main spindle box achieves excellent states in strength, rigidity and stability. The headstock outer wall has the observation window in the design of suitable position, can observe headstock internal state at any time, has also played radiating effect to installation in earlier stage and the maintenance in later stage have also played convenient effect. As for the whole suspension type spindle box, the spindle box has the characteristic of suspension extension, the appearance of the spindle box is close to a closed regular tetrahedron structure, an inner cavity is hollow, and a reasonable reinforcing rib wall is configured, so that the spindle box is completely suitable for the long-stroke shaft extension working condition and has high-quality rigidity, strength and stability.

In the aspect of performance, the main spindle box is provided with a cooling water jacket, so that the cooling effect on the main spindle of the machine tool is good; the main spindle box is provided with a gravity balance device, so that the dynamic performance is excellent; the appearance of the main shaft box is close to a closed regular tetrahedron structure, the inner cavity of the main shaft box is hollow, and a reasonable reinforcing rib wall is configured, so that the main shaft box completely adapts to the long-stroke shaft extension working condition and has high-quality rigidity, strength and stability.

The invention has the characteristic of suspended extension, the appearance of the main spindle box is close to a closed regular tetrahedron structure, the inner cavity is hollow, and a reasonable reinforcing rib wall is configured, so that the main spindle box is completely suitable for the long-stroke shaft extension working condition and has high-quality rigidity, strength and stability.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.