Automatic aligning structure of main shaft

Abstract

The utility model relates to the technical field of main shaft machining, and discloses a main shaft automatic aligning structure which comprises a first adjusting cylinder and a second adjusting cylinder, a main shaft body is arranged on the inner wall of the first adjusting cylinder and the inner wall of the second adjusting cylinder, and the outer wall of the main shaft body is not in contact with the inner wall of the first adjusting cylinder and the inner wall of the second adjusting cylinder. Sliding rails are fixedly connected to the lower portions of the four sides of the outer walls of the first adjusting cylinder and the second adjusting cylinder in a penetrating mode, sliding rods are slidably connected to the inner walls of the sliding rails, the top of one end of the inner side of the sliding rod at the top end is connected with a supporting cylinder through a deviation rectifying assembly, and the top end of the supporting cylinder is fixedly connected to the inner wall of the first adjusting cylinder. According to the utility model, the laser receiving disc and the laser emitter are arranged, so that the offset of the main shaft in the rotating process can be well observed under the cooperation of the laser emitter, the laser receiving disc, the irradiation area and the offset area, and therefore, whether the main shaft deviates or not can be well judged.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle processing, in particular to an automatic centering structure for a spindle. Background Art

[0002] Spindle centering generally refers to the slight deviation or inclination that may occur during the operation of the spindle, and adjustment or auxiliary devices are required to maintain its correct position and angle to ensure machining accuracy and quality. The spindle centering structure can adopt various different designs and technologies to adapt to different types of mechanical equipment and machining requirements.

[0003] Currently, after the production of the spindle in the market, the slight deviation and inclination during its operation may be small, and the staff cannot observe it with the naked eye, resulting in the inability to timely correct the centering of the spindle. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose an automatic centering structure for a spindle, which can timely observe the eccentricity value of the spindle and correct the spindle when necessary.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic centering structure for a spindle, including a first adjusting cylinder and a second adjusting cylinder. The inner walls of the first adjusting cylinder and the second adjusting cylinder are provided with a spindle body, and the outer wall of the spindle body does not contact the inner walls of the first adjusting cylinder and the second adjusting cylinder. The lower parts of the outer walls of the first adjusting cylinder and the second adjusting cylinder are all fixedly connected through sliding rails. The inner walls of the sliding rails are all slidably connected with sliding rods. The inner ends of the tops of the sliding rods are all connected to a support cylinder through a centering correction component. The top of the support cylinder is fixedly connected to the inner wall of the first adjusting cylinder. The inner ends of the bottoms of the sliding rods are all fixedly connected with extension blocks. Laser calibration components are installed on the outer wall of the spindle body corresponding to the bottom end of the inner wall of the first adjusting cylinder and the top end of the inner wall of the second adjusting cylinder. The front side of the top of the first adjusting cylinder is fixedly connected with a controller.

[0007] Further, the centering correction component includes a rotating inclined rod rotatably connected to the inner end of the top of the sliding rod. The inner end of the top of the rotating inclined rod is rotatably connected with a sliding ring. The top of the outer wall of the support cylinder is fixedly connected with a cylindrical electric push rod. The top of the sliding ring is fixedly connected to the driving end of the cylindrical electric push rod. The inner wall of the sliding ring is slidably connected to the outer wall of the support cylinder.

[0008] Further, the outer ends of the upper and lower sliding rods are all fixedly connected through a moving connecting rod, and the outer ends of the upper and lower sliding rails are all fixedly connected through a fixed connecting rod.

[0009] Further, the cylindrical electric push rod is electrically connected to the controller.

[0010] Further, several extrusion rollers are rotatably connected to one end of the inner side of the extension block, and one end of the inner side of the extrusion roller is in close contact with the outer wall surface of the main shaft body.

[0011] Further, the laser calibration assembly includes a laser receiving disk fixedly connected to the bottom end of the inner wall of the first adjusting cylinder and the top end of the inner wall of the second adjusting cylinder corresponding to the outer wall of the main shaft body. An irradiation area is provided on the outer side of the top end of the laser receiving disk, and an offset area is provided inside the laser receiving disk corresponding to the irradiation area. A laser emitter is provided at the top end of the upper laser receiving disk.

[0012] Further, the front end of the laser emitter is fixedly connected to the lower side of the inner wall of the first adjusting cylinder, and the laser emitter is electrically connected to the controller.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by setting the laser receiving disk and the laser emitter, the offset amount of the main shaft during rotation can be well observed under the cooperation of the laser emitter, the laser receiving disk, the irradiation area and the offset area, so as to well judge whether the main shaft is offset.

[0015] 2. In the utility model, by setting the extrusion roller and the rotating inclined rod, after it is judged that the main shaft is offset, the extrusion roller can be controlled to extrude and reset the outer wall of the main shaft body to the standard position inside the upper and lower first adjusting cylinders and second adjusting cylinders simultaneously under the cooperation of the controller, the cylindrical electric push rod, the rotating inclined rod, the sliding rod, the sliding ring, the extension block, the moving connecting rod and the extrusion roller, so as to accurately align the center. Description of the Drawings

[0016] Figure 1 is a three-dimensional view of an automatic centering structure of a main shaft proposed by the utility model;

[0017] Figure 2 is a half-sectional view of the first adjusting cylinder of an automatic centering structure of a main shaft proposed by the utility model;

[0018] Figure 3 is a schematic structural diagram of an extrusion roller of an automatic centering structure of a main shaft proposed by the utility model.

[0019] Legend Explanation:

[0020] 1. Spindle body; 2. Controller; 3. First adjustment cylinder; 4. Offset area; 5. Irradiation area; 6. Second adjustment cylinder; 7. Laser receiving disk; 8. Fixed connecting rod; 9. Movable connecting rod; 10. Slide bar; 11. Extrusion roller; 12. Slide rail; 13. Cylindrical electric push rod; 14. Support cylinder; 15. Sliding ring; 16. Extension block; 17. Laser emitter; 18. Rotating inclined rod. Detailed implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Refer to Figures 1-3 , an embodiment provided by the present invention: An automatic centering structure for a spindle, including a first adjustment cylinder 3 and a second adjustment cylinder 6. The inner walls of the first adjustment cylinder 3 and the second adjustment cylinder 6 are provided with a spindle body 1. The outer wall of the spindle body 1 does not contact the inner walls of the first adjustment cylinder 3 and the second adjustment cylinder 6. Slide rails 12 are fixedly connected through the lower parts of the outer walls of the first adjustment cylinder 3 and the second adjustment cylinder 6 on all four sides. Slide bars 10 are slidably connected to the inner walls of the slide rails 12. The top end of the support cylinder 14 is fixedly connected to the inner wall of the first adjustment cylinder 3. The bottom ends of the inner sides of the slide bars 10 are fixedly connected with extension blocks 16. The front side of the top end of the first adjustment cylinder 3 is fixedly connected with a controller 2. The outer ends of the upper and lower slide bars 10 are fixedly connected through a movable connecting rod 9, and the outer ends of the upper and lower slide rails 12 are fixedly connected through a fixed connecting rod 8.

[0023] Specifically, the distance between the upper and lower first adjustment cylinders 3 and the second adjustment cylinders 6 can be adjusted according to actual needs. The slide rails 12 facilitate the slide bars 10 to drive the extension blocks 16 to slide to tighten and correct the deviation of the outer wall of the central spindle body 1. The controller 2 can control the start of the internal centering and alignment structure. The movable connecting rod 9 and the fixed connecting rod 8 can connect the first adjustment cylinder 3 and the second adjustment cylinder 6 together. The inner walls of the first adjustment cylinder 3 and the second adjustment cylinder 6 do not contact the outer wall of the spindle body 1.

[0024] The deviation rectifying component includes a rotating inclined rod 18 rotatably connected to one end of the inner side of the top of the sliding rod 10. The inner side of the top end of the rotating inclined rod 18 is rotatably connected to a sliding ring 15. A cylindrical electric push rod 13 is fixedly connected to the top of the outer wall of the support cylinder 14. The top end of the sliding ring 15 is fixedly connected to the driving end of the cylindrical electric push rod 13. The inner wall of the sliding ring 15 is slidably connected to the outer wall of the support cylinder 14. The cylindrical electric push rod 13 is electrically connected to the controller 2. A plurality of pressing rollers 11 are rotatably connected to one end of the inner side of the extension block 16. One end of the inner side of the pressing rollers 11 is in close contact with the outer wall surface of the main shaft body 1.

[0025] Specifically, the controller 2 can start the cylindrical electric push rod 13 to pull the sliding ring 15 upward, so that the four rotating inclined rods 18 rotate toward one side of the main shaft body 1 at the same time, thereby driving the sliding rod 10 to slide toward one side of the main shaft body 1 on the inner wall of the slide rail 12, and then pushing the extension block 16 to slide, so that the pressing rollers 11 are in close contact with the outer wall surface of the main shaft, and driving the lower pressing rollers 11 to perform deviation rectifying extrusion and centering on the outer wall of the main shaft body 1 through the moving connecting rod 8.

[0026] The laser calibration component includes a laser receiving disk 7 fixedly connected to the bottom end of the inner wall of the corresponding first adjusting cylinder 3 and the top end of the inner wall of the second adjusting cylinder 6 on the outer wall of the main shaft body 1. An irradiation area 5 is opened on the outer side of the top end of the laser receiving disk 7. An offset area 4 is opened corresponding to the inner side of the irradiation area 5 at the top end of the laser receiving disk 7. A laser emitter 17 is arranged at the top end of the upper laser receiving disk 7. The front end of the laser emitter 17 is fixedly connected to the lower side of the inner wall of the first adjusting cylinder 3. The laser emitter 17 is electrically connected to the controller 2.

[0027] Specifically, the laser emitter 17 on the inner wall of the first adjusting cylinder 3 will irradiate downward onto the laser receiving disk 7 at the top of the inner wall of the second adjusting cylinder 6 on the upper laser receiving disk 7 in the irradiation area. If the main shaft body 1 deviates during rotation, the light emitted by the laser emitter 17 will be offset to the offset area 4 for display. When in use, an offset value can be set in the offset area 4 to select an appropriate maximum offset value according to the requirements of the main shaft used.

[0028] Working principle: First, when the main shaft body 1 rotates normally, the laser emitter 17 on the inner wall of the first adjusting cylinder 3 will irradiate the irradiation area on the upper laser receiving disc 7 to the laser receiving disc 7 at the top of the inner wall of the second adjusting cylinder 6. If the main shaft body 1 deviates during rotation, the light emitted by the laser emitter 17 will shift to the deviation area 4 for display. When in use, a deviation value can be set in the deviation area 4 to select an appropriate maximum deviation value according to the requirements of the main shaft used. When the deviation amount exceeds the maximum deviation value, the controller 2 will activate the cylindrical electric push rod 13 to pull up the sliding ring 15, thereby causing the four-side rotating inclined rods 18 to rotate towards the main shaft body 1 at the same time, driving the sliding rod 10 to slide towards the main shaft body 1 on the inner wall of the slide rail 12, and then pushing the extension block 16 to slide, so that the extrusion roller 11 is in close contact with the outer wall surface of the main shaft, and driving the lower extrusion roller 11 to simultaneously correct and extrude the center of the outer wall of the main shaft body 1 through the moving connecting rod 8. The distance between the upper and lower first adjusting cylinders 3 and the second adjusting cylinder 6 can be adjusted according to actual needs to more accurately correct the deviation of the main shaft body.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, 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 automatic centering structure, comprising a first adjustment cylinder (3) and a second adjustment cylinder (6), characterized in that: The inner walls of the first adjusting cylinder (3) and the second adjusting cylinder (6) are provided with a main shaft body (1), and the outer wall of the main shaft body (1) does not contact the inner walls of the first adjusting cylinder (3) and the second adjusting cylinder (6). The lower parts of the four sides of the outer walls of the first adjusting cylinder (3) and the second adjusting cylinder (6) are fixedly connected with slide rails (12), and the inner walls of the slide rails (12) are slidably connected with slide rods (10). The top of the inner end of the top slide rod (10) is connected to the support cylinder (14) through a correction component. The top of the support cylinder (14) is fixedly connected to the inner wall of the first adjusting cylinder (3), and the bottom of the inner end of the slide rod (10) is fixedly connected with an extension block (16). The outer wall of the main shaft body (1) is installed with a laser calibration component corresponding to the bottom end of the inner wall of the first adjusting cylinder (3) and the top end of the inner wall of the second adjusting cylinder (6). The front side of the top of the first adjusting cylinder (3) is fixedly connected with a controller (2).

2. The automatic spindle centering structure according to claim 1, characterized in that: The deviation correction component comprises a rotating inclined rod (18) rotatably connected to one end of the inner side of the top of the sliding rod (10); the inner side of the top of the rotating inclined rod (18) is rotatably connected to a sliding ring (15); the top of the outer wall of the support tube (14) is fixedly connected to a cylindrical electric push rod (13); the top of the sliding ring (15) is fixedly connected to the driving end of the cylindrical electric push rod (13); and the inner wall of the sliding ring (15) is slidably connected to the outer wall of the support tube (14).

3. The automatic spindle centering structure according to claim 1, characterized in that: The outer ends of the slide bars (10) on the upper and lower sides are fixedly connected via a movable connecting rod (9), and the outer ends of the slide rails (12) on the upper and lower sides are fixedly connected via a fixed connecting rod (8).

4. The automatic spindle centering structure according to claim 2, characterized in that: The cylindrical electric push rod (13) is electrically connected to the controller (2).

5. The automatic spindle centering structure according to claim 2, characterized in that: One end of the inner side of the extension block (16) is rotatably connected to a plurality of extrusion rollers (11), and one end of the inner side of the extrusion roller (11) is tightly attached to the outer wall surface of the main shaft body (1).

6. The automatic spindle centering structure according to claim 1, characterized in that: The laser calibration assembly comprises a laser receiving disk (7) fixedly connected to the outer wall of the spindle body (1) corresponding to the bottom end of the inner wall of the first adjustment cylinder (3) and the top end of the inner wall of the second adjustment cylinder (6); an irradiation area (5) is provided on the outer side of the top end of the laser receiving disk (7); an offset area (4) is provided on the inner side of the top end of the laser receiving disk (7) corresponding to the irradiation area (5); and a laser emitter (17) is provided on the top end of the laser receiving disk (7).

7. The automatic spindle centering structure according to claim 6, characterized in that: The front end of the laser emitter (17) is fixedly connected to the lower side of the inner wall of the first adjustment cylinder (3), and the laser emitter (17) is electrically connected to the controller (2).

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