Spindle structure of numerical control lathe

Abstract

The utility model discloses a spindle structure of a numerically controlled lathe, which comprises a base, a spindle lower box fixedly connected to the top end of the base, a fixed semi-ring I clamped to the spindle lower box, a fixed semi-ring II inserted to the top end of the fixed semi-ring I, a bearing clamped to the inner ends of the fixed semi-ring II and the fixed semi-ring I, and a spindle upper box clamped to the upper end of the fixed semi-ring II, a lathe spindle is arranged at the inner end of the bearing, one end of the lathe spindle is fixedly connected with a three-jaw chuck, and the other end of the lathe spindle is fixedly connected with a first rotating wheel; by means of the first fixing semi-ring and the second fixing semi-ring, the lathe spindle does not need to be fixed through a flange bolt when being installed, the first clamping groove and the second clamping groove in the first fixing semi-ring and the second fixing semi-ring can limit and fix a bearing, and the first fixing semi-ring and the second fixing semi-ring are rapidly connected through the inserting block and the inserting groove. Hole positions of the main shaft lower box and the main shaft upper box which are connected with the first fixing semi-ring and the second fixing semi-ring in a clamped mode are rapidly aligned, and follow-up installation is faster and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe equipment, in particular to a spindle structure of a numerically controlled lathe. Background Art

[0002] A CNC lathe is an automated machine tool controlled by a computer. The CNC lathe controls the relative movement between the tool and the workpiece through a computer system to complete various processing operations, such as turning, boring, milling, drilling, etc. The spindle structure of a CNC lathe usually consists of a spindle box, a spindle, and a spindle drive. The spindle box is the device seat of the spindle. The spindle is the core component of the CNC lathe. It is a bearing structure that carries the tool and the workpiece. The spindle drive provides power to the spindle, usually an electric motor.

[0003] Most of the existing spindles are connected to the spindle box through bolts and flanges. This connection method requires loosening multiple bolts and additional tools during installation or maintenance, making the installation and maintenance process more complicated and time-consuming. Utility Model Content

[0004] The purpose of the utility model is to provide a spindle structure for a CNC lathe in order to solve the problem that most of the existing spindles are connected to the spindle box by bolts and flanges. Such a connection method requires loosening multiple bolts and additional tools during installation or maintenance, making the installation and maintenance process more complicated and time-consuming.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spindle structure of a CNC lathe, comprising: a base, a spindle lower box fixedly connected to the top of the base, a fixed half ring 1 is clamped on the spindle lower box, a fixed half ring 2 is inserted on the top of the fixed half ring 1, a bearing is clamped on the fixed half ring 2 and the inner end of the fixed half ring 1, a spindle upper box is clamped on the upper end of the fixed half ring 2, a lathe spindle is arranged on the inner end of the bearing, a three-jaw chuck is fixedly connected to one end of the lathe spindle, a rotating wheel 1 is fixedly connected to the other end of the lathe spindle, a motor is fixedly connected to the other end of the base, a rotating wheel 2 is fixedly connected to the output end of the motor, a belt is arranged between the rotating wheel 1 and the rotating wheel 2, and the rotating wheel 1 and the rotating wheel 2 are connected by belt transmission.

[0006] As a further solution of the utility model: the fixed half ring 1 and the fixed half ring 2 are provided in two groups and are symmetrically distributed at the two ends of the main shaft lower box.

[0007] As a further solution of the utility model: the fixed half ring 1 is provided with a clamping groove 1, the bearing is located at the inner end of the clamping groove 1, and is clamped with the fixed half ring 1 through the clamping groove 1.

[0008] As a further solution of the utility model: a second clamping groove is provided in the second fixed half ring, and the bearing is located at the inner end of the second clamping groove and is clamped with the second fixed half ring through the second clamping groove.

[0009] As a further solution of the utility model: an end surface of the fixed half ring is fixedly connected with an insert block, and the insert blocks are provided in four groups.

[0010] As a further solution of the utility model: slots are provided on two end faces of the fixed half ring, and four groups of the slots are provided.

[0011] As a further solution of the utility model: the insert block is adapted to the slot.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model uses the fixing half ring one and the fixing half ring two to make it unnecessary to fix the lathe spindle by flange bolts when installing. The clamping grooves one and two in the fixing half ring one and the fixing half ring two can limit and fix the bearing. The fixing half ring one and the fixing half ring two are quickly connected by the plug block and the slot, so that the holes of the spindle lower box and the spindle upper box clamped by the fixing half ring one and the fixing half ring two are quickly aligned, making the subsequent installation faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the spindle structure of a CNC lathe described in the utility model;

[0015] Figure 2 It is a sectional view of the overall structure of the spindle structure of a CNC lathe described in the utility model;

[0016] Figure 3 It is a structural schematic diagram of a bearing in a spindle structure of a CNC lathe described in the utility model;

[0017] Figure 4 It is a structural schematic diagram of a fixed half ring 1 in the spindle structure of a CNC lathe described in the utility model;

[0018] Figure 5 It is a structural schematic diagram of a fixed half ring 2 in the spindle structure of a CNC lathe described in the utility model.

[0019] In the figure: 1. base; 2. spindle lower box; 3. spindle upper box; 4. fixed half ring 2; 41. slot; 42. slot 2; 5. fixed half ring 1; 51. insert block; 52. slot 1; 6. bearing; 7. lathe spindle; 8. three-jaw chuck; 9. motor; 10. rotating wheel 2; 11. belt; 12. rotating wheel 1. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0022] Reference Figures 1 to 3 In the embodiment of the utility model, a spindle structure of a CNC lathe comprises: a base 1, a spindle lower box 2 is fixedly connected to the top of the base 1, a fixed half ring 1 5 is clamped on the spindle lower box 2, a fixed half ring 2 4 is inserted on the top of the fixed half ring 1 5, a bearing 6 is clamped on the inner ends of the fixed half ring 2 4 and the fixed half ring 1 5, a spindle upper box 3 is clamped on the upper end of the fixed half ring 2 4, a lathe spindle 7 is arranged on the inner end of the bearing 6, a three-jaw chuck 8 is fixedly connected to one end of the lathe spindle 7, a rotating wheel 12 is fixedly connected to the other end of the lathe spindle 7, a motor 9 is fixedly connected to the other end of the base 1, a rotating wheel 2 10 is fixedly connected to the output end of the motor 9, a belt 11 is arranged between the rotating wheel 12 and the rotating wheel 2 10, and the rotating wheel 12 and the rotating wheel 2 10 are connected through the belt 11.

[0023] Reference Figures 3 to 5There are two groups of fixed half rings 1 5 and fixed half rings 2 4, which are symmetrically distributed at both ends of the spindle lower box 2. The fixed half ring 1 5 is provided with a slot 1 52. The bearing 6 is located at the inner end of the slot 1 52 and is connected to the fixed half ring 1 5 through the slot 1 52. A slot 2 42 is provided in the fixed half ring 2 4. The bearing 6 is located at the inner end of the slot 2 42 and is connected to the fixed half ring 2 4 through the slot 2 42. The end face of the fixed half ring 1 5 is fixedly connected with an insert block 51, and four groups of insert blocks 51 are provided. The end face of the fixed half ring 2 4 is provided with a slot 41, and four groups of slots 41 are provided. The insert block 51 is adapted to the slot 41.

[0024] The above scheme is adopted: the lathe spindle 7 is installed without fixing it with flange bolts through the fixed half ring 1 5 and the fixed half ring 2 4, the groove 1 52 and the groove 2 42 in the fixed half ring 1 5 and the fixed half ring 2 4 can limit and fix the bearing 6, and the fixed half ring 1 5 and the fixed half ring 2 4 are quickly connected through the plug block 51 and the slot 41, so that the holes of the spindle lower box 2 and the spindle upper box 3 connected with the fixed half ring 1 5 and the fixed half ring 2 4 are quickly aligned, making the subsequent installation faster and more convenient.

[0025] The working principle of the utility model is as follows: when in use, the bearing 6 is first installed on the outer end of the lathe spindle 7, and then the fixed half ring 1 5 and the fixed half ring 2 4 are respectively clamped with the spindle lower box 2 and the spindle upper box 3, and then the spindle lower box 2 is fixedly connected with the base 1, and then the bearing 6 on the lathe spindle 7 is placed in the clamping groove 1 52 in the fixed half ring 1 5, and then the insert block 51 is inserted into the slot 41, so that the upper half of the bearing 6 enters the clamping groove 2 42, so that the end faces of the spindle lower box 2 and the spindle upper box 3 are fitted, and the holes are aligned, and finally use The bolts fix the lower spindle box 2 and the upper spindle box 3 together; the fixing half ring 1 5 and the fixing half ring 2 4 make it unnecessary to fix the lathe spindle 7 with flange bolts when installing; the fixing half ring 1 5 and the fixing half ring 2 4 have the slots 1 52 and 2 42 which can limit and fix the bearing 6; the fixing half ring 1 5 and the fixing half ring 2 4 are quickly connected through the insert block 51 and the slot 41, so that the holes of the lower spindle box 2 and the upper spindle box 3 which are clamped with the fixing half ring 1 5 and the fixing half ring 2 4 are quickly aligned, making the subsequent installation faster and more convenient.

[0026] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spindle structure of a CNC lathe, characterized in that: include: A base (1), the top of the base (1) is fixedly connected to a spindle lower box (2), the spindle lower box (2) is clamped with a fixed half ring (5), the top of the fixed half ring (5) is plugged with a fixed half ring (4), the inner ends of the fixed half ring (4) and the fixed half ring (5) are clamped with a bearing (6), the upper end of the fixed half ring (4) is clamped with a spindle upper box (3), the inner end of the bearing (6) is provided with a lathe spindle (7), the lathe spindle One end of the shaft (7) is fixedly connected to a three-jaw chuck (8), the other end of the lathe spindle (7) is fixedly connected to a rotating wheel 1 (12), the other end of the base (1) is fixedly connected to a motor (9), the output end of the motor (9) is fixedly connected to a rotating wheel 2 (10), a belt (11) is provided between the rotating wheel 1 (12) and the rotating wheel 2 (10), and the rotating wheel 1 (12) and the rotating wheel 2 (10) are connected in transmission via the belt (11).

2. The spindle structure of a CNC lathe according to claim 1, characterized in that: The fixed half ring 1 (5) and the fixed half ring 2 (4) are provided in two groups and are symmetrically distributed at the two ends of the main shaft lower box (2).

3. The spindle structure of a CNC lathe according to claim 1, characterized in that: The fixed half ring (5) is provided with a clamping groove (52), and the bearing (6) is located at the inner end of the clamping groove (52) and is clamped with the fixed half ring (5) through the clamping groove (52).

4. The spindle structure of a CNC lathe according to claim 1, characterized in that: A second clamping groove (42) is provided in the second fixed half ring (4), and the bearing (6) is located at the inner end of the second clamping groove (42) and is clamped with the second fixed half ring (4) through the second clamping groove (42).

5. The spindle structure of a CNC lathe according to claim 1, characterized in that: An insert block (51) is fixedly connected to the end surface of the fixed half ring (5), and four groups of the insert blocks (51) are provided.

6. The spindle structure of a CNC lathe according to claim 1, characterized in that: The second end surface of the fixed half ring (4) is provided with a slot (41), and the slot (41) is provided in four groups.

7. The spindle structure of a CNC lathe according to claim 5, characterized in that: The insert block (51) is adapted to the slot (41).

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