Spindle box of numerical control machining center

Abstract

The utility model provides a numerical control machining center spindle box which comprises a box body, a horizontally-arranged supporting frame is fixedly connected into the box body, a top cover is arranged at the top of the supporting frame, a first mounting plate and a second mounting plate are fixedly connected to the front face of the box body, a U-shaped frame is fixedly connected to the left side wall of the box body, and a servo motor is fixedly connected to the left side wall of the U-shaped frame. The output end of the servo motor is fixedly connected with a connecting shaft, the end, away from the servo motor, of the connecting shaft is fixedly connected with a driving gear, the left side wall of the first mounting plate is rotationally connected with a driven gear meshed with the driving gear, the driven gear is fixedly connected with a bidirectional lead screw, and the bidirectional lead screw is in threaded connection with symmetrically-distributed connecting plates in a sleeving mode. The top cover can be conveniently taken out of the box body, operation is easy and convenient, time and labor are saved, meanwhile, the working efficiency is improved, the difficulty for workers to take out the top cover is greatly reduced, corresponding tools are not needed, practicability is higher, and follow-up cleaning of sweeps in the box body is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a spindle box of a numerical control machining center. Background Art

[0002] CNC machine tools are high-efficiency, high-precision automated equipment. They are indispensable equipment in production and processing enterprises. CNC machine tools can process various workpieces with various spindles, tools, servo motors, workbenches and other components. The spindle box, as a part of the machine tool, plays an important role in the operation of the machine tool. The spindle box is placed on one side of the column. The spindle box drives the tool to move up and down along the column to perform CNC processing. However, the existing technology has the following shortcomings when used:

[0003] The transmission components inside the spindle box will produce some waste chips after working for a long time. When the waste chips inside the spindle box need to be cleaned, the top cover needs to be removed first. In most cases, the top cover is installed on the box body by at least four bolts. It is necessary to use corresponding tools to remove multiple bolts in turn before the top cover can be removed. The overall operation is time-consuming and labor-intensive, which affects work efficiency, increases the labor intensity of staff, and has low practicality.

[0004] Therefore, a CNC machining center spindle box is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to address the problem that the transmission components inside the current spindle box will produce some waste chips after working for a long time. When the waste chips inside the spindle box need to be cleaned, the top cover needs to be removed first. In most cases, the top cover is installed on the box body by at least four bolts. It is necessary to use corresponding tools to remove multiple bolts in sequence before the top cover can be removed. The overall operation is time-consuming and labor-intensive, which affects work efficiency, increases the labor intensity of staff, and has low practicality.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The invention discloses a spindle box for a CNC machining center, which is used to improve the above problems.

[0008] The specific application is as follows:

[0009] The top of the box body is fixedly connected to the support frame arranged horizontally, and the top of the support frame is provided with a top cover, the front of the box body is fixedly connected to the first mounting plate and the second mounting plate, the left side wall of the box body is fixedly connected to the U-shaped frame, the left side wall of the U-shaped frame is fixedly connected to the servo motor, the output end of the servo motor is fixedly connected to the connecting shaft, and the end of the connecting shaft away from the servo motor is fixedly connected to the driving gear, the left side wall of the first mounting plate is rotatably connected to the driven gear meshing with the driving gear, the driven gear is fixedly connected to a two-way screw rod, the two-way screw rod is threadedly sleeved with a symmetrically distributed connecting plate, the guide rod penetrating the connecting plate is fixedly connected between the first mounting plate and the second mounting plate, the side wall of the connecting plate is fixedly connected to the L-shaped plate, the top of the box body is fixedly connected to a number of connecting blocks, the connecting block is provided with a rectangular opening, the side wall of the L-shaped plate is fixedly connected to a number of positioning plugs, and the top of the top cover is fixedly connected to the symmetrically distributed fixing blocks.

[0010] As a preferred technical solution of the present application, one end of the bidirectional screw away from the driven gear is rotatably connected to the second mounting plate through a ball bearing.

[0011] As a preferred technical solution of the present application, the right side wall of the box body is threadedly connected with a first bolt and a second bolt, and the first bolt is located directly above the second bolt.

[0012] As a preferred technical solution of the present application, the connecting plate is slidably sleeved on the guide rod.

[0013] As a preferred technical solution of the present application, the four positioning blocks are respectively located in four rectangular openings, and the bottoms of the positioning blocks are in contact with the top cover.

[0014] As a preferred technical solution of the present application, the outer wall of the top cover is in contact with the inner wall of the box.

[0015] As a preferred technical solution of the present application, the two L-shaped plates are symmetrically distributed about the central axis of the top cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the scheme of this application:

[0018] When the servo motor is started, the servo motor drives the active gear to rotate through the connecting shaft, and drives the driven gear to rotate through the active gear. When the driven gear rotates, the bidirectional lead screw rotates synchronously with the driven gear, so that the two connecting plates move away from each other. The four positioning plugs are disengaged from the four rectangular openings respectively through the two L-shaped plates. The staff can take the top cover out of the box directly through the two fixing blocks. The overall operation is simple and convenient, which saves time and effort while improving work efficiency and facilitating the subsequent cleaning of waste chips in the box. It solves the problem that the transmission assembly inside the spindle box in the prior art will have some waste chips after working for a long time. When the waste chips inside the spindle box need to be cleaned, the top cover needs to be removed first. In most cases, the top cover is mounted on the box body by at least four bolts, and it is necessary to use corresponding tools to remove multiple bolts in turn before the top cover can be removed. The overall operation is time-consuming and laborious, which affects work efficiency, increases the labor intensity of the staff, and has low practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the overall structural schematic diagrams of the spindle box of a CNC machining center provided in this application.

[0020] Figure 2 This is the second schematic diagram of the overall structure of the spindle box of a CNC machining center provided in this application.

[0021] Figure 3 This is a schematic diagram of the front view structure of a CNC machining center spindle box provided in this application.

[0022] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0023] Figure 5 This is a schematic structural diagram of a support frame in a spindle box of a CNC machining center provided in this application.

[0024] Figure 6 This is a structural schematic diagram of a connecting block in a spindle box of a CNC machining center provided in this application.

[0025] Indicated in the figure:

[0026] 1. Box body; 2. Support frame; 3. Top cover; 4. First mounting plate; 5. Second mounting plate; 6. U-shaped frame; 7. Servo motor; 8. Connecting shaft; 9. Driving gear; 10. Driven gear; 11. Bidirectional screw; 12. Connecting plate; 13. Guide rod; 14. L-shaped plate; 15. Connecting block; 16. Rectangular opening; 17. Positioning block; 18. Fixing block; 19. First bolt; 20. Second bolt. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0032] Example:

[0033] like Figure 1-6As shown, a spindle box of a CNC machining center proposed in this embodiment includes a box body 1, a horizontally arranged support frame 2 is fixedly connected to the inside of the box body 1, a top cover 3 is provided on the top of the support frame 2, a first mounting plate 4 and a second mounting plate 5 are fixedly connected to the front of the box body 1, a U-shaped frame 6 is fixedly connected to the left side wall of the box body 1, a servo motor 7 is fixedly connected to the left side wall of the U-shaped frame 6, an output end of the servo motor 7 is fixedly connected to a connecting shaft 8, and an end of the connecting shaft 8 away from the servo motor 7 is fixedly connected to a driving gear 9. When the servo motor 7 is started, the connecting shaft 8 and the driving gear 9 are driven to rotate by the servo motor 7, and the left side wall of the first mounting plate 4 is rotatably connected to a driven gear 10 meshing with the driving gear 9, and the rotating driving gear 9 drives the driven gear 10 to rotate in the opposite direction, and a bidirectional screw rod 11 is fixedly connected to the driven gear 10, and the bidirectional screw rod 11 rotates synchronously with the driven gear 10, and a threaded sleeve is connected to symmetrically distributed connecting plates 12. The two guide rods 13 are fixedly connected to each other, and the two guide rods 13 are used to guide the connecting plates 12. The side walls of the connecting plates 12 are fixedly connected to the L-shaped plates 14, so that the two connecting plates 12 are separated from each other. The distance between the two L-shaped plates 14 is increased by the two connecting plates 12. The top of the box body 1 is fixedly connected to four connecting blocks 15. The connecting blocks 15 are provided with rectangular openings 16. The side walls of the L-shaped plates 14 are fixedly connected to two positioning plugs 17. The top of the top cover 3 is fixedly connected to symmetrically distributed fixing blocks 18. The positioning plugs 17 move with the L-shaped plates 14. When the four positioning plugs 17 are respectively disengaged from the four rectangular openings 16, the staff can directly take the top cover 3 out of the box body 1 through the two fixing blocks 18, which is convenient for subsequent cleaning of waste chips in the box body 1. The operation is simple and convenient, saving time and effort while improving work efficiency.

[0034] like Figure 3 and Figure 4 As shown, one end of the bidirectional screw rod 11 away from the driven gear 10 is rotatably connected to the second mounting plate 5 through a ball bearing. The provided ball bearing can ensure the stability of the bidirectional screw rod 11 during rotation.

[0035] like Figure 2 and Figure 3 As shown, the right side wall of the box body 1 is threadedly connected with a first bolt 19 and a second bolt 20. The first bolt 19 is located directly above the second bolt 20. The first bolt 19 is rotated to remove it from the box body 1, which makes it easier to add lubricating oil to the box body 1. The second bolt 19 is rotated to remove it from the box body 1, which makes it easier to discharge the lubricating oil later.

[0036] like Figure 1As shown, the connecting plates 12 are slidably sleeved on the guide rods 13 , and the guide rods 13 can guide the two connecting plates 12 to prevent the connecting plates 12 from being offset when moving.

[0037] like Figure 1 and Figure 2 As shown, four positioning blocks 17 are respectively located in the four rectangular openings 16 , and the bottoms of the positioning blocks 17 fit with the top cover 3 . The top cover 3 is fixed by the four positioning blocks 17 to prevent the top cover 3 from moving upward.

[0038] like Figure 1 As shown, the outer wall of the top cover 3 fits against the inner wall of the box body 1 to limit the position of the top cover 3.

[0039] like Figure 1 As shown, the two L-shaped plates 14 are symmetrically distributed about the central axis of the top cover 3 .

[0040] Specifically, when the spindle box of this CNC machining center is in use: the servo motor 7 is electrically connected to the external control device, the servo motor 7 is started, and the connecting shaft 8 and the driving gear 9 are driven to rotate by the servo motor 7. The rotating driving gear 9 drives the driven gear 10 to rotate in the opposite direction, and the bidirectional screw rod 11 rotates synchronously with the driven gear 10, and the rotating bidirectional screw rod 11 drives the two connecting plates 12 to move, and the connecting plates 12 are guided by the two guide rods 13 so that the two connecting plates 12 are away from each other. The distance between the two L-shaped plates 14 is increased by the two connecting plates 12, and the positioning plug 17 moves with the L-shaped plate 14. When the four positioning plugs 17 are respectively disengaged from the four rectangular openings 16, the staff can directly remove the top cover 3 from the box body 1 through the two fixing blocks 18, which is convenient for the subsequent cleaning of the waste chips in the box body 1. The operation is simple and convenient, saves time and effort, and improves work efficiency. It greatly reduces the difficulty of the staff in removing the top cover 3, does not require the use of corresponding tools, and is more practical.

[0041] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A CNC machining center spindle box, comprising a box body (1), characterized in that: A horizontally arranged support frame (2) is fixedly connected inside the box (1), a top cover (3) is provided on the top of the support frame (2), a first mounting plate (4) and a second mounting plate (5) are fixedly connected to the front of the box (1), a U-shaped frame (6) is fixedly connected to the left side wall of the box (1), a servo motor (7) is fixedly connected to the left side wall of the U-shaped frame (6), an output end of the servo motor (7) is fixedly connected to a connecting shaft (8), an end of the connecting shaft (8) away from the servo motor (7) is fixedly connected to a driving gear (9), a driven gear (10) meshing with the driving gear (9) is rotatably connected to the left side wall of the first mounting plate (4), and the driven gear (10) is fixedly connected to the left side wall of the first mounting plate (4). (10) is fixedly connected with a bidirectional screw rod (11), and a symmetrically distributed connecting plate (12) is threadedly sleeved on the bidirectional screw rod (11), a guide rod (13) penetrating the connecting plate (12) is fixedly connected between the first mounting plate (4) and the second mounting plate (5), and an L-shaped plate (14) is fixedly connected to the side wall of the connecting plate (12), and the top of the box body (1) is fixedly connected with four connecting blocks (15), and a rectangular opening (16) is opened on the connecting block (15), and two positioning plugs (17) are fixedly connected to the side wall of the L-shaped plate (14), and the top of the top cover (3) is fixedly connected with symmetrically distributed fixing blocks (18).

2. The spindle box of a CNC machining center according to claim 1, characterized in that: One end of the bidirectional screw rod (11) away from the driven gear (10) is rotatably connected to the second mounting plate (5) via a ball bearing.

3. The spindle box of a CNC machining center according to claim 1, characterized in that: The right side wall of the box body (1) is threadedly connected with a first bolt (19) and a second bolt (20), and the first bolt (19) is located directly above the second bolt (20).

4. The spindle box of a CNC machining center according to claim 1, characterized in that: The connecting plate (12) is slidably sleeved on the guide rod (13).

5. The spindle box of a CNC machining center according to claim 1, characterized in that: The four positioning inserts (17) are respectively located in the four rectangular openings (16), and the bottoms of the positioning inserts (17) are in contact with the top cover (3).

6. The spindle box of a CNC machining center according to claim 1, characterized in that: The outer wall of the top cover (3) is in contact with the inner wall of the box body (1).

7. The spindle box of a CNC machining center according to claim 1, characterized in that: The two L-shaped plates (14) are symmetrically distributed about the central axis of the top cover (3).

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