Spindle head for machining center

Abstract

The utility model relates to the technical field of drilling and tapping machining centers, in particular to a main shaft head for a machining center, which comprises a main shaft head body, a mounting seat and a transmission piece, an inserting strip is arranged on the outer surface of one end of the main shaft head body, and an inserting groove for inserting the inserting strip is arranged on the inner surface of one end of the mounting seat. A protruding ring is arranged at the end, close to the inserting strip, of the outer surface of the spindle head body and rotationally connected with a thread sleeve, and external threads matched with threads of the thread sleeve are arranged at one end of the mounting base. Through the combined action of the inserting strip, the inserting groove, the convex ring, the threaded sleeve, the external threads and the like, the end part of the main shaft head body can be conveniently mounted on the mounting seat, and the transmission part extends into the mounting seat and is connected with the motor transmission part in the mounting seat; the main shaft head body is more convenient and quicker to mount and dismount, so that the main shaft head body is further convenient to maintain or replace by people in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and tapping machining centers, and particularly relates to a spindle head for a machining center. Background Technique

[0002] A drilling and tapping machining center is a machine tool for cutting metals, usually also called a drilling, milling and tapping center, mainly used for machining light and small metals. When operating, a cutting tool is installed on the spindle head of the machine tool, and the spindle head can drive the cutting tool to rotate.

[0003] During the use of the spindle head, it is subject to relatively large wear, so the spindle head needs to be maintained or replaced. The existing spindle heads for machining centers are usually connected to the mounting base by using multiple groups of bolts and nuts, resulting in inconvenient disassembly and assembly of the spindle head. Moreover, during the disassembly and assembly process, the bolts and nuts are very easy to fall off and get lost, further resulting in the inability to smoothly install the spindle head. Therefore, it is not conducive to people's later maintenance or replacement of the spindle head. Content of the Utility Model

[0004] The utility model provides a spindle head for a machining center, which solves the technical problem of inconvenient disassembly and assembly of the spindle head in the prior art.

[0005] In view of the above problems, the technical solution proposed by the utility model is as follows:

[0006] A spindle head for a machining center includes a spindle head body, a mounting base and a transmission member. One end of the outer surface of the spindle head body is provided with a plug-in strip, and one end of the inner surface of the mounting base is provided with a plug-in groove for the plug-in strip to be inserted. One end of the outer surface of the spindle head body near the plug-in strip is provided with a convex ring, and a screw sleeve is rotatably connected to the convex ring. One end of the mounting base is provided with an external thread that is in threaded cooperation with the screw sleeve.

[0007] Furthermore, the plug-in strips and the plug-in grooves are respectively distributed in multiple groups around the outer surface of the spindle head body and the inner surface of the mounting base. The number of several groups of the plug-in strips and the plug-in grooves is the same and their positions correspond to each other.

[0008] Furthermore, a clamping groove is formed on the surface of the convex ring, and a clamping ring that is in fit with the clamping groove is arranged on the inner surface of the screw sleeve, and the clamping ring extends into the interior of the clamping groove.

[0009] Furthermore, a sealing ring is arranged at one end of the spindle head body, a convex portion for abutting against the end of the spindle head body is arranged inside the mounting base, and a sealing groove that is in cooperation with the sealing ring is formed on the convex portion.

[0010] Furthermore, a hexagonal cap is fixedly sleeved on the outer surface of the screw sleeve.

[0011] Further, the main spindle head body and the mounting base are made of carbon steel, and an electroplated anti-corrosion layer is provided on their surfaces.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: through the combined action of the insertion strip, insertion slot, convex ring, screw sleeve, external thread, etc., the end of the main spindle head body can be conveniently installed on the mounting base. The transmission member extends into the mounting base and is connected to the motor transmission member inside it. Since multiple groups of bolts and nuts are not required during the installation process, the installation and disassembly process of the main spindle head body is more convenient and fast, and it is further convenient for people to repair or replace the main spindle head body in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of the connection state between the main spindle head body and the mounting base of the present utility model;

[0016] Figure 3 It is a schematic structural diagram of the main spindle head body and the screw sleeve of the present utility model;

[0017] Figure 4 It is a schematic cross-sectional structure diagram of the mounting base of the present utility model;

[0018] Figure 5 It is a schematic structural diagram of the insertion strip and the convex ring of the present utility model;

[0019] Figure 6 It is a schematic cross-sectional structure diagram of the screw sleeve of the present utility model.

[0020] In the figure: 1, main spindle head body; 2, mounting base; 3, insertion strip; 4, insertion slot; 5, convex ring; 6, screw sleeve; 7, external thread; 8, card slot; 9, snap ring; 10, transmission member; 11, sealing ring; 12, raised portion; 13, sealing groove; 14, hexagonal cap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1-6 , a spindle head for a machining center, including a spindle head body 1, a mounting seat 2, and a transmission member 10. An insertion strip 3 is provided on the outer surface of one end of the spindle head body 1. The insertion strips 3 are distributed in multiple groups around the outer surface of the spindle head body 1. An insertion slot 4 for inserting the insertion strip 3 is provided on the inner surface of one end of the mounting seat 2. The insertion slots 4 are distributed in multiple groups around the inner surface of the mounting seat 2. The number of the multiple groups of insertion strips 3 is the same as that of the insertion slots 4 and their positions correspond to each other. Therefore, when the end of the spindle head body 1 is inserted into the interior of the mounting seat 2, the multiple groups of insertion strips 3 can be aligned and inserted into the multiple groups of insertion slots 4. A convex ring 5 is provided on the outer surface of the spindle head body 1 near the insertion strip 3. A clamping groove 8 is formed on the surface of the convex ring 5. A clamping ring 9 that fits with the clamping groove 8 is provided on the inner surface of the screw sleeve 6. The clamping ring 9 extends into the interior of the clamping groove 8. The screw sleeve 6 can be rotatably connected to the convex ring 5 through the clamping groove 8 and the clamping ring 9. An external thread 7 that is in threaded cooperation with the screw sleeve 6 is provided at one end of the mounting seat 2. During the process of inserting the end of the spindle head body 1 into the mounting seat 2, the screw sleeve 6 will be aligned with and approach the external thread 7. When the two are connected to each other, the screw sleeve 6 can be rotated to be threadedly sleeved on the external thread 7.

[0024] During installation, insert the end of the spindle head body 1 into the interior of the mounting base 2. During this process, multiple sets of insertion strips 3 can be inserted into multiple sets of insertion slots 4. Under the action of the mutual insertion between the insertion strips 3 and the insertion slots 4, relative rotation between the spindle head body 1 and the mounting base 2 can be restricted. At the same time, since there are multiple sets of insertion strips 3 and insertion slots 4, this restrictive effect is further strengthened, so that after installation, the spindle head body 1 can stably maintain a fixed connection with the mounting base 2 without relative rotation. As the end of the spindle head body 1 continues to extend into the interior of the mounting base 2, the screw sleeve 6 rotatably connected to the convex ring 5 will align with and approach the external thread 7 at the end of the mounting base 2. When the two come into contact, rotate the screw sleeve 6 so that the screw sleeve 6 is threadedly sleeved on the external thread 7. During this process, the external thread 7 will continue to drive the end of the spindle head body 1 to extend into the interior of the mounting base 2 under the driving action of the screw sleeve 6 until the convex ring 5 on the outer surface of the spindle head body 1 abuts against the end of the mounting base 2. At this time, the mounting base 2 can no longer extend into the interior of the spindle head body 1. At this time, the spindle head body 1 is installed in place. The transmission member 10 on the spindle head body 1 extends into the mounting base 2 and is connected to the motor transmission member inside it. Under the action of the threaded connection between the screw sleeve 6 and the external thread 7, the spindle head body 1 can be prevented from axially disengaging from the interior of the mounting base 2. At the same time, under the restrictive action of multiple sets of insertion slots 4 and the convex ring 5, relative rotation between the spindle head body 1 and the mounting base 2 will not occur, so that the end of the spindle head body 1 can be stably installed in the mounting base 2. And because multiple sets of bolts and nuts are not required during the installation process, the installation and disassembly process of the spindle head body 1 is more convenient and fast, which further facilitates people to repair or replace the spindle head body 1 in the later stage.

[0025] Further, please refer to Figure 4 and Figure 6 As shown in the figure, a sealing ring 11 is provided at one end of the spindle head body 1, and a convex portion 12 for abutting against the end of the spindle head body 1 is provided inside the mounting base 2. A sealing groove 13 adapted to the sealing ring 11 is provided on the convex portion 12. When the spindle head body 1 is installed on the mounting base 2, one end of the spindle head body 1 will also come into contact and fit with the convex portion 12. At this time, the sealing ring 11 will extend into the sealing groove 13 and be mutually engaged with the sealing groove 13. Under the engaging action of the sealing ring 11 and the sealing groove 13, the sealing performance between the spindle head body 1 and the mounting base 2 is effectively improved.

[0026] Further, please refer to Figure 6 As shown in the figure, a hexagonal cap 14 is fixedly sleeved on the outer surface of the screw sleeve 6. Therefore, during the installation process, people can conveniently rotate the screw sleeve 6 with a wrench to threadedly connect it to the external thread 7.

[0027] Furthermore, the main spindle head body 1 and the mounting base 2 are made of carbon steel, which has high strength. Electroplated anti-corrosion layers are provided on their surfaces, making the main spindle head body 1 and the mounting base 2 not easily rust, and further improving their service life.

[0028] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spindle head for a machining center, comprising a spindle head body (1), a mounting base (2) and a transmission member (10), characterized in that, One end of the outer surface of the spindle head body (1) is provided with a plug-in strip (3). One end of the inner surface of the mounting seat (2) is provided with a plug-in groove (4) for the plug-in strip (3) to be inserted. One end of the outer surface of the spindle head body (1) near the plug-in strip (3) is provided with a convex ring (5). A screw sleeve (6) is rotatably connected to the convex ring (5). One end of the mounting seat (2) is provided with an external thread (7) that is in threaded cooperation with the screw sleeve (6).

2. The spindle head for a machining center according to claim 1, characterized in that, The plug-in strip (3) and the plug-in groove (4) are respectively arranged in multiple groups and are circumferentially distributed on the outer surface of the spindle head body (1) and the inner surface of the mounting seat (2). The number of several groups of the plug-in strip (3) and the plug-in groove (4) is the same and their positions correspond to each other.

3. The spindle head for a machining center according to claim 1, characterized in that, A clamping groove (8) is formed on the surface of the convex ring (5). A clamping ring (9) that is fitted with the clamping groove (8) is arranged on the inner surface of the screw sleeve (6). The clamping ring (9) extends into the interior of the clamping groove (8).

4. The spindle head for a machining center according to claim 1, characterized in that, A sealing ring (11) is arranged at one end of the spindle head body (1). A convex portion (12) for abutting against the end of the spindle head body (1) is arranged inside the mounting seat (2). A sealing groove (13) that is in cooperation with the sealing ring (11) is formed on the convex portion (12).

5. The spindle head for a machining center according to claim 1, characterized in that, A hexagonal cap (14) is fixedly sleeved on the outer surface of the screw sleeve (6).

6. The spindle head for a machining center according to claim 1, characterized in that, The spindle head body (1) and the mounting seat (2) are made of carbon steel, and an electroplated anti-corrosion layer is provided on their surfaces.

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