Machine tool spindle with quick positioning function

CN223981193UActive Publication Date: 2026-03-10SHANDONG FANGDA MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional machine tool spindle positioning methods are time-consuming and labor-intensive, prone to human error, and lack fast and accurate positioning means, affecting machining accuracy and efficiency.

Method used

The positioning method combines laser positioning components and rubber clamps. The laser and sensors enable rapid alignment, while the rubber clamps are tightly fitted to the spindle surface for fixation. The combination of a scale and threaded rod structure enables precise positioning.

Benefits of technology

It improves processing efficiency and accuracy, reduces manual scribing time, ensures rapid and accurate alignment between the spindle and the workpiece, and reduces human error and vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a machine tool main shaft with a quick positioning function, which belongs to the technical field of lathe parts and comprises a main shaft, a main shaft sleeve and an auxiliary shaft sleeve, a main shaft; the bearing sleeves the circumferential surface of the main shaft; the fixing ring is arranged on the circumferential surface of the main shaft in a sleeving manner; the threaded hole is formed in the circumferential surface of the fixing ring; the threaded rod is in threaded connection with the interior of the threaded hole; a worker inserts a workpiece to be machined into a groove of the main shaft, adjusts the position of the workpiece according to a dial gauge on the circumferential surface of the main shaft to enable the workpiece to be roughly located at the needed working position, slides the fixing ring to the connecting position of the workpiece, and manually rotates the handle to enable the threaded rod to drive the rubber clamping block to move towards the surface of the main shaft. And the clamping effect is enhanced through the anti-skid lines on the surface of the rubber clamping block, and the fixing ring is locked, so that the time and complexity of manual scribing are reduced, and the working efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to lathe part technical field, concretely relates to a lathe spindle with quick positioning function. BACKGROUND

[0002] The lathe spindle is one of the core components of the numerical control machine tool, is responsible for bearing and rotating workpiece or tool to realize various processing operations, and its performance directly influences machining precision, efficiency and product quality.

[0003] In the traditional lathe operation, the worker usually needs to manually mark to determine the relative position between the spindle and the workpiece, this method not only is time-consuming and laborious, but also is easy to introduce artificial error, leads to unstable machining precision, in addition, when the spindle position deviates due to rotation or external force, lack of quick and accurate positioning means, further influence machining quality and efficiency. UTILITY MODEL CONTENTS

[0004] The utility model is provided with a lathe spindle with quick positioning function, aims at solving the problems that the worker usually needs to manually mark to determine the relative position between the spindle and the workpiece in prior art, this method not only is time-consuming and laborious, but also is easy to introduce artificial error, leads to unstable machining precision, in addition, when the spindle position deviates due to rotation or external force, lack of quick and accurate positioning means, further influence machining quality and efficiency.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A lathe spindle with quick positioning function, comprising:

[0007] The spindle;

[0008] The bearing is sleeved on the circumferential surface of the spindle;

[0009] The fixed ring is sleeved on the circumferential surface of the spindle;

[0010] The threaded hole is formed in the circumferential surface of the fixed ring;

[0011] The threaded rod is threadedly connected in the threaded hole;

[0012] The rubber clamp block is attached to one side end of the threaded rod;

[0013] The handle is fixedly connected to one side end of the threaded rod;

[0014] The laser positioning assembly is arranged at the upper end of the fixed ring to realize further positioning of the spindle.

[0015] In a preferred embodiment of this utility model, the laser positioning assembly includes a laser, a circular groove, and a laser sensor. The laser is fixedly connected to the upper end of the fixing ring, the circular groove is opened at the lower end of the bearing, and a laser sensor is fixedly connected to the center of the bearing. The laser and the laser sensor are on the same horizontal line and are signal connected.

[0016] As a preferred embodiment of this utility model, the surface of the rubber clamp is provided with anti-slip texture.

[0017] In a preferred embodiment of this utility model, steel balls are slidably connected inside the bearing, and the steel balls are provided in multiple and evenly distributed.

[0018] As a preferred embodiment of this utility model, the upper end of the main shaft is provided with a mounting groove, and the inner circumferential wall of the mounting groove is provided with a retaining groove.

[0019] As a preferred embodiment of this utility model, the circumferential surface of the spindle has a scale.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. In this solution, the operator inserts the workpiece to be processed into the slot of the spindle, adjusts the position of the workpiece according to the scale on the circumferential surface of the spindle so that it is roughly in the required working position, slides the retaining ring to the workpiece connection point, manually rotates the handle to make the threaded rod drive the rubber clamp to move towards the spindle surface until the rubber clamp is tightly attached to the spindle, and the anti-slip texture on its surface enhances the clamping effect, locking the retaining ring, reducing the time and complexity of manual scribing, and improving work efficiency.

[0022] 2. In this solution, when the spindle deviates, the laser is turned on to emit a green laser beam. The spindle is rotated so that the laser and laser sensor on the fixed ring are on the same horizontal line. When the green laser beam emitted by the laser turns red, it indicates that the two are aligned, thus enabling rapid positioning. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a front perspective view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is an exploded view of the present invention;

[0027] Figure 4 This utility model Figure 3 Enlarged view of point A in the image.

[0028] In the diagram: 1. Spindle; 2. Bearing; 3. Retaining ring; 4. Threaded hole; 5. Threaded rod; 6. Rubber clamp; 7. Handle; 8. Laser; 9. Circular groove; 10. Laser sensor; 11. Steel ball; 12. Mounting groove; 13. Slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figures 1-4 The present invention provides the following technical solution:

[0032] A machine tool spindle with rapid positioning function includes:

[0033] Spindle 1;

[0034] Bearing 2 is sleeved on the circumferential surface of spindle 1;

[0035] The retaining ring 3 is sleeved on the circumferential surface of the main shaft 1;

[0036] Threaded hole 4 is formed on the circumferential surface of the retaining ring 3;

[0037] Threaded rod 5 is threaded into threaded hole 4;

[0038] Rubber clamp 6, rubber clamp 6 is attached to one side end of threaded rod 5;

[0039] Handle 7 is fixedly connected to one end of the threaded rod 5;

[0040] A laser positioning component is installed at the upper end of the fixed ring 3 to further position the spindle 1.

[0041] In a specific embodiment of this utility model, the spindle 1 is responsible for bearing and rotating the workpiece or tool; the bearing 2 provides necessary support and allows the spindle 1 to rotate with high precision and low friction; the retaining ring 3 slides on the surface of the spindle 1 and provides a mounting platform for other components; the threaded hole 4 is used to connect the threaded rod 5, which can move linearly within the retaining ring 3 through the threaded connection with the threaded hole 4; and the rubber clamp 6 moves back and forth with the rotation of the threaded rod 5, pressing the rubber clamp 6 against the circumferential surface of the spindle 1 to fix the retaining ring 3. The handle 7 is fixed to lock the position of the spindle 1. The handle 7 allows the operator to manually rotate the threaded rod 5 to move the rubber clamp 6. The operator can then move the fixing ring 3 to the connection point by inserting the spindle 1 into the groove of the workpiece. Then, by rotating the threaded rod 5 in the threaded hole 4 through the handle 7, the operator can drive the rubber clamp 6 to clamp the surface of the spindle 1 and fix the fixing ring 3. This achieves rapid positioning of the spindle 1 and the workpiece. The laser positioning component is set at the upper end of the fixing ring 3 to quickly correct any deviation of the spindle 1.

[0042] Please refer to the details. Figures 1-4 The laser positioning assembly includes a laser 8, a circular groove 9, and a laser sensor 10. The laser 8 is fixedly connected to the upper end of the fixing ring 3, the circular groove 9 is opened at the lower end of the bearing 2, and the laser sensor 10 is fixedly connected to the center of the bearing 2. The laser 8 and the laser sensor 10 are on the same horizontal line and are connected by signal.

[0043] In this embodiment: Laser 8 is used to emit a green laser beam; circular groove 9 is used to prevent laser sensor 10 from being accidentally damaged by workers during operation; laser sensor 10 receives laser signals from laser 8 and converts the signals into position information to feed back to laser 8; the green laser beam of laser 8 will turn red; and the initial state of the main shaft 1 is when laser 8 and laser sensor 10 are on the same horizontal line. When the main shaft 1 needs to be positioned, the operator can rotate the fixing ring 3. When laser 8 rotates to the position of laser sensor 10, the beam of laser 8 will turn red, and then the fixing ring 3 will be fixed, thereby quickly correcting the deviation of the main shaft 1.

[0044] Please refer to the details. Figures 1-4 The surface of the rubber clamp 6 is provided with anti-slip texture.

[0045] In this embodiment, the anti-slip texture of the rubber clamp 6 is used to enhance the clamping effect on the workpiece and prevent the fixing ring 3 from moving.

[0046] Please refer to the details. Figures 1-4 The bearing 2 has a sliding connection of steel balls 11, and there are multiple steel balls 11 that are evenly distributed.

[0047] In this embodiment, multiple and evenly distributed steel balls 11 ensure that the spindle 1 is subjected to uniform force during rotation, reducing vibration and wear. Furthermore, the sliding connection method significantly reduces the coefficient of friction and improves rotation efficiency and accuracy.

[0048] Please refer to the details. Figures 1-4 The upper end of the main shaft 1 is provided with a mounting groove 12, and the inner circumferential wall of the mounting groove 12 is provided with a slot 13.

[0049] In this embodiment: the mounting groove 12 is used to connect the spindle 1 to the machine tool component, and multiple slots 13 are provided to engage the machine tool component, ensuring the stability and safety of the connection.

[0050] Please refer to the details. Figures 1-4 The circumferential surface of spindle 1 has a scale.

[0051] In this embodiment: the scale on the circumferential surface of the spindle 1 allows the operator to move the fixing ring 3 to position the spindle 1 relative to the workpiece by observing the scale.

[0052] The working principle and usage process of this utility model are as follows: Using this device, the operator inserts the workpiece to be processed into the groove of the spindle 1. Based on the scale on the circumferential surface of the spindle 1, the position of the workpiece is adjusted so that it is approximately in the desired working position. The fixing ring 3 is slid to the workpiece connection point. The handle 7 is manually rotated, causing the threaded rod 5 to move the rubber clamp 6 towards the surface of the spindle 1 until the rubber clamp 6 tightly adheres to the spindle 1. The anti-slip texture on its surface enhances the clamping effect, locking the fixing ring 3. This solves the problem that workers usually need to manually draw lines to determine the relative position between the spindle and the workpiece. When the spindle 1 deviates, the laser 8 is activated, emitting a green laser beam. The spindle 1 is rotated so that the laser 8 and the laser sensor 10 on the fixing ring 3 are on the same horizontal line. When the green laser beam emitted by the laser 8 turns red, it indicates that the two are aligned, thus enabling rapid positioning.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A machine tool spindle having a rapid positioning function, characterized by Include: Main shaft (1); Bearing (2), the bearing (2) is sleeved on the circumferential surface of the main shaft (1); Fixed ring (3), the fixed ring (3) is sleeved on the circumferential surface of the main shaft (1); Threaded hole (4), the threaded hole (4) is opened on the circumferential surface of the fixed ring (3); Threaded rod (5), the threaded rod (5) is threadedly connected in the threaded hole (4); Rubber clamp block (6), the rubber clamp block (6) is attached to one side end of the threaded rod (5); Handle (7), the handle (7) is fixedly connected to one side end of the threaded rod (5); Laser positioning assembly, the laser positioning assembly is arranged on the upper end of the fixed ring (3) to realize further positioning of the main shaft (1).

2. The machine tool spindle with quick positioning function according to claim 1, characterized in that: The laser positioning assembly includes a laser (8), a circular groove (9) and a laser sensor (10), the laser (8) is fixedly connected to the upper end of the fixed ring (3), the circular groove (9) is opened on the lower end of the bearing (2), the laser sensor (10) is fixedly connected in the center of the bearing (2), the laser (8) and the laser sensor (10) are on the same horizontal line, and the laser (8) and the laser sensor (10) are signal connected.

3. The machine tool spindle with quick positioning function according to claim 2, characterized in that: The surface of the rubber clamp block (6) is provided with anti-skid lines.

4. The machine tool spindle with quick positioning function according to claim 3, characterized in that: The bearing (2) is slidably connected with steel balls (11), the steel balls (11) are provided with a plurality of and uniformly distributed.

5. The machine tool spindle with quick positioning function according to claim 4, characterized in that: The upper end of the main shaft (1) is provided with a mounting groove (12), and the circumferential inner wall of the mounting groove (12) is provided with a clamping groove (13).

6. The machine tool spindle with quick positioning function according to claim 5, characterized in that: The circumferential surface of the main shaft (1) has a scale table.