Numerically controlled machine tool moving headstock

Abstract

The utility model belongs to the field of headstock, provide a numerical control machine tool mobile headstock, numerical control machine tool mobile headstock includes the lift seat, the front of lift seat has the dovetail groove along the length direction, the lower slot of dovetail groove is 65~75 DEG, the dovetail groove inlay installation has the mobile drag board, the front side of mobile drag board is equipped with the spindle rotation, and the top is equipped with the fixed seat, be equipped with the drive motor on fixed seat, the drive shaft of drive motor is equipped with the driving wheel. When processing the product, first lift seat is driven under the lift mechanism and moves to the processing position, then the moving mechanism drives the lift seat to move towards the product transversely, then the drive motor starts to work, the driving wheel starts to rotate, the spindle starts to rotate under the linkage of the belt, thereby realizing the purpose of processing the product, after processing, the moving mechanism drives the lift seat to reset, waiting for the next processing.

Description

Technical Field

[0001] This utility model belongs to the field of spindle boxes, and particularly relates to a moving spindle box for CNC machine tools. Background Technology

[0002] The spindle box is a crucial component of a machine tool, housing the machine tool's working spindle, its transmission parts, and related auxiliary mechanisms. Through a specific transmission system, the spindle box transmits motion to the spindle via transmission wheels and shafts located at various positions within the spindle box. Therefore, the spindle box is a complex transmission component whose main function is to support and rotate the spindle, enabling functions such as spindle starting, braking, and speed changing.

[0003] The spindle box plays a crucial role in modern CNC machine tool production. Given the numerous parts contained within it, miniaturization and lightweight design are particularly important. Currently, the components within the spindle box are not compactly installed, and the layout is not optimal, requiring improvement. Furthermore, the tension of the belts within the spindle box cannot be fine-tuned according to actual conditions. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a CNC machine tool moving spindle box, which aims to solve the problems of insufficient compactness and unreasonable layout of the various parts in the existing CNC machine tool moving spindle box.

[0005] The present invention adopts the following technical solution:

[0006] Furthermore, the CNC machine tool moving spindle box includes a lifting seat. The front of the lifting seat has a dovetail groove along its length. The lower opening of the dovetail groove has an inclination angle of 65-75°. A moving slide is embedded in the dovetail groove. A spindle is rotatably mounted on the front side of the moving slide, and a fixed seat is mounted on the top. A drive motor is mounted on the fixed seat. The drive shaft of the drive motor has a drive wheel, and a driven wheel is mounted on the tail of the spindle. A matching belt is fitted between the drive wheel and the driven wheel. The lifting seat also has a moving mechanism for driving the moving slide to move.

[0007] Furthermore, a central cavity is provided in the center of the front of the lifting seat, and the moving mechanism includes a movable lead screw rotatably installed in the central cavity. A movable lead screw sleeve is fitted on the movable lead screw, and the movable lead screw sleeve is connected to the back of the main shaft box. A motor base is provided on the rear side of the lifting seat, and a movable motor for driving the movable lead screw to rotate is provided in the motor base.

[0008] Furthermore, the lifting seat has an upper sliding groove on its front side, and the movable slide plate is provided with an upper sliding strip located in the upper sliding groove. The lifting seat is provided with a fixed plate, and a lower sliding groove is provided below the fixed plate. A lower sliding strip is provided in the lower sliding groove.

[0009] Furthermore, the lifting seat has a guide opening on its back, and a guide sleeve and a lifting screw sleeve are respectively provided in the guide opening, and the guide sleeve and the lifting screw sleeve are arranged side by side.

[0010] Furthermore, the top of the movable slide has an opening, the belt is located inside the opening, the movable slide has a protrusion corresponding to the opening, and the bottom of the fixed seat has two pairs of oblong grooves, each with a locking nut screwed into it. The locking nut is screwed into the protrusion to lock it in place.

[0011] Furthermore, the upper sidewall of the movable slide is provided with a pair of L-shaped limiting blocks facing the convex plate.

[0012] Furthermore, the side wall of the movable slide has a pair of observation ports.

[0013] The beneficial effects of this utility model are:

[0014] 1. The inclination angle of the lower groove of the dovetail groove is 65-75°, which can increase the overall stability and rigidity of the spindle box.

[0015] 2. In this spindle box, the moving mechanism is installed in the intermediate cavity, which allows the moving mechanism to not occupy other space, making the overall structure of the spindle box more compact and reasonable.

[0016] 3. When you need to fine-tune the installation position of the fixing seat, simply loosen all the locking nuts to adjust the installation position of the fixing seat. You can adjust the tension of the belt by moving the fixing seat. After adjusting the position of the fixing seat, tighten all the locking nuts one by one. The whole adjustment process is relatively simple. Attached Figure Description

[0017] Figure 1 This utility model provides an overall drawing of the moving spindle box of a CNC machine tool.

[0018] Figure 2 This utility model provides another perspective on the overall view of the moving spindle box of a CNC machine tool.

[0019] Figure 3 This utility model provides an installation diagram of the mobile mechanism. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0021] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0022] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0023] Combination Figure 1-3 As shown, the CNC machine tool moving spindle box includes a lifting seat 1. The front of the lifting seat 1 has a dovetail groove 2 along its length. The lower opening of the dovetail groove has an inclination angle of 65-75°. A moving slide 3 is embedded in the dovetail groove 2. A spindle 4 is rotatably mounted on the front side of the moving slide 3. A fixed seat 5 is mounted on the top. A drive motor 6 is mounted on the fixed seat 5. The drive shaft of the drive motor 6 has a drive wheel 7. A driven wheel 8 is mounted on the tail of the spindle 4. A matching belt is fitted between the drive wheel 7 and the driven wheel 8. The lifting seat 1 is also provided with a moving mechanism for driving the moving slide 3 to move.

[0024] The spindle box plays an important role in modern CNC machine tool industrial production. During the CNC machine tool machining process, the spindle box supports the spindle and rotates it, realizing functions such as spindle starting, braking, and speed change.

[0025] In this structure, the CNC machine tool's moving spindle box includes a lifting seat, which serves as the main mounting carrier and is mounted on a lifting mechanism. Driven by the lifting mechanism, the lifting seat moves the entire spindle box up and down, thereby adjusting its height. When processing a product using the spindle box, the lifting seat first moves to the processing position under the drive of the lifting mechanism. Then, the moving mechanism drives the lifting seat to move laterally toward the product. Next, the drive motor starts working, the drive wheel begins to rotate, and the spindle begins to rotate under the linkage of the belt, thus achieving the purpose of processing the product. After processing is completed, the moving mechanism drives the lifting seat to reset, awaiting the next processing step.

[0026] As a preferred structure, such as Figure 3 The lifting seat 1 has a central cavity 10 at the center of its front side. The moving mechanism includes a movable lead screw 11 rotatably installed in the central cavity 10. A movable lead screw sleeve 12 is fitted on the movable lead screw 11. The movable lead screw sleeve 12 is connected to the back of the main shaft box 3. A motor seat 14 is provided on the rear side of the lifting seat 1. A movable motor 15 for driving the movable lead screw 11 to rotate is provided in the motor seat 14.

[0027] In this structure, the moving mechanism is installed within the intermediate cavity, which allows the moving mechanism to occupy no other space, making the structure of the moving spindle box more compact and reasonable. When the moving mechanism is needed to drive the moving slide plate to move laterally, the driving moving motor first starts working, driving the moving lead screw to rotate. At the same time, the moving lead screw sleeve moves along the length direction of the moving lead screw, thereby causing the moving slide plate to slide laterally within the dovetail groove.

[0028] In this structure, such as Figure 2 The dovetail groove has a lower opening angle of 65-75°, and the bottom structure of the movable slide plate matches the lower opening. This increases the overall stability and rigidity of the spindle box.

[0029] In addition, such as Figure 1 The top of the movable slide plate 3 has an opening (covered in the figure), the belt is located inside the opening, the movable slide plate 3 has a protrusion plate 16 corresponding to the opening, and the bottom of the fixed base 5 has two pairs of oblong grooves 17, each with a locking nut screwed into it. The locking nut is screwed into the protrusion plate for locking.

[0030] In this structure, the mounting base is hollow and serves as the mounting carrier for the drive motor. The mounting position of the mounting base is fine-tunable. To adjust the position, simply loosen all the locking nuts. The belt tension can be adjusted by moving the mounting base. After adjusting the position, tighten all the locking nuts one by one. The entire adjustment process is relatively simple.

[0031] Furthermore, a pair of L-shaped limiting blocks 18 are provided on the upper side wall of the movable slide plate facing the convex plate. When the fixed base is adjusted in the installation position, the limiting blocks are mainly used to limit its movement.

[0032] In this structure, such as Figure 1-2 The movable slide plate 3 is also provided with a hydraulic tool-cutting cylinder 19 facing the main shaft 4. Since the hydraulic tool-cutting cylinder is existing technology, it will not be described here.

[0033] Furthermore, as a preferred structure, such as Figure 2 The lifting seat 1 has a guide opening 20 on its back side. The guide opening 20 is provided with a guide sleeve 21 and a lifting screw sleeve 22, and the guide sleeve 21 and the lifting screw sleeve 22 are arranged side by side.

[0034] The lifting seat is mounted on the lifting mechanism, which drives the spindle box to move vertically, thereby adjusting the spindle's position relative to the product. In this embodiment, as a specific structure, the lifting seat is slidably mounted on the frame of the lifting mechanism through the guide port. The frame is equipped with a lifting rod and a lifting screw, wherein the lifting rod is fixedly mounted and the lifting screw is rotatably mounted. The lifting rod and the lifting screw pass through the guide sleeve and the lifting screw sleeve, respectively. A lifting motor for driving the lifting screw to rotate is provided on the frame.

[0035] When the lifting motor drives the lifting screw to rotate, the lifting screw sleeve moves along the height direction of the lifting screw, and the main spindle box moves vertically accordingly. At the same time, the guide sleeve slides vertically on the lifting mechanism.

[0036] Additionally, the lifting seat 1 has an upper sliding groove 24 on its front side, and the movable slide plate 3 has an upper sliding strip 25 located within the upper sliding groove 24. The lifting seat 1 has a fixing plate 26, and a lower sliding groove 27 is formed below the fixing plate 26. A lower sliding strip 28 is located within the lower sliding groove 27. In this structure, the upper sliding groove and the lower sliding groove are respectively provided with an upper sliding strip and a lower sliding strip. When the movable slide plate moves laterally on the lifting seat, the upper and lower sliding strips can reduce the friction between the lifting seat and the movable slide plate.

[0037] Finally, a pair of observation ports 23 are provided on the side wall of the movable slide 3. These observation ports allow for the observation of components inside the movable slide.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A numerically controlled machine tool moving headstock, characterized by: The CNC machine tool moving spindle box includes a lifting base. A dovetail groove is opened along the length direction on the front of the lifting base. The lower opening angle of the dovetail groove is 65-75°. A moving slide is embedded in the dovetail groove. A spindle is rotatably mounted on the front side of the moving slide. A fixed seat is provided on the top. A drive motor is provided on the fixed seat. The drive shaft of the drive motor is provided with a drive wheel. A driven wheel is provided at the tail of the spindle. A matching belt is fitted between the drive wheel and the driven wheel. The lifting base is also provided with a moving mechanism for driving the moving slide to move.

2. The mobile headstock of claim 1, wherein: The lifting seat has a central cavity at the front center. The moving mechanism includes a movable lead screw rotatably installed in the central cavity. A movable lead screw sleeve is fitted on the movable lead screw. The movable lead screw sleeve is connected to the back of the main shaft box. A motor base is provided on the rear side of the lifting seat. A movable motor for driving the movable lead screw to rotate is provided in the motor base.

3. The mobile headstock of claim 2, wherein: The lifting seat has an upper sliding groove on its front side, and an upper sliding strip is provided on the movable slide plate within the upper sliding groove. The lifting seat has a fixed plate, and a lower sliding groove is provided below the fixed plate. A lower sliding strip is provided within the lower sliding groove.

4. The mobile headstock of claim 3, wherein: The lifting seat has a guide opening on its back, and a guide sleeve and a lifting screw sleeve are respectively provided in the guide opening, and the guide sleeve and the lifting screw sleeve are arranged side by side.

5. The numerically controlled machine tool moving headstock of claim 4 wherein: The movable slide has a top opening, the belt is located inside the top opening, the movable slide has a protrusion corresponding to the top opening, and the bottom of the fixed seat has two pairs of oblong grooves, each with a locking nut screwed into it. The locking nut is screwed into the protrusion to lock it in place.

6. The numerically controlled machine tool moving headstock as claimed in claim 5, characterized in that: The upper sidewall of the movable slide is provided with a pair of L-shaped limiting blocks facing the convex plate.

7. The numerically controlled machine tool moving headstock as claimed in claim 6, characterized in that: The side wall of the movable slide has a pair of observation ports.

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