Tool changing arm and main shaft tool changing position calibration tool

Abstract

This utility model relates to a fixture for calibrating the tool changer arm and spindle tool changer positions, belonging to the field of machining equipment. It includes a positioning cone sleeve for connecting to the machine tool spindle, a guide ring for connecting the tool changer arm tool holder and which can be mounted on the positioning cone sleeve, and a mandrel through which the guide ring and positioning cone sleeve can pass. The mandrel has a beveled end and can be inserted into the center hole of the guide ring and positioning cone sleeve to calibrate the tool changer position. This utility model facilitates the rapid and accurate finding and adjustment of the spindle tool changer position, and ensures a high-precision calibration method and tool to meet the demands of modern machining industries for efficient and precise production.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment, to calibration and alignment fixtures for machining centers, and particularly to a fixture for calibrating the tool changer arm and the spindle tool changer position. Background Technology

[0002] In modern machining, the maintenance and adjustment of equipment such as machining centers are crucial. However, existing methods for adjusting the spindle tool changer position have significant shortcomings. Currently, this adjustment process relies heavily on the personal experience of maintenance personnel, lacking standardized and systematic guidance. Due to significant differences in the technical levels and operating habits of different maintenance personnel, the adjustment results are unstable, making it difficult to guarantee the accuracy of the tool changer position. Furthermore, the complex internal structure of machining centers, with their compact layout of the spindle and tool changer and limited operating space, further increases the difficulty of adjustment. Within this limited space, it is difficult to intuitively and accurately measure and correct the relative position of the tool changer arm and the spindle. Existing methods cannot provide effective precision guarantees; even slight deviations in the tool changer position can cause misalignment between the tool changer mechanism and the machine spindle, resulting in impacts that may damage the tool and equipment, increase production costs, and reduce production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a tooling for calibrating the tool changer arm and the spindle tool changer position, so as to quickly find and accurately adjust the spindle tool changer position, without being limited by the technical level of maintenance personnel and the operating space, and to ensure a high-precision calibration method and tool, so as to meet the needs of modern machining industry for efficient and precise production.

[0004] To achieve the above objectives, the present invention provides a tooling fixture for calibrating the tool changing arm and the tool changing position of the spindle, including a positioning cone sleeve for connecting the machine tool spindle, a guide ring for connecting the tool changing arm tool holder and which can be installed on the positioning cone sleeve, and a mandrel through which the guide ring and the positioning cone sleeve can be inserted. The end of the mandrel is provided with a beveled surface, and the mandrel can be inserted into the center hole of the guide ring and the positioning cone sleeve to calibrate the tool changing position.

[0005] Preferably, the positioning cone sleeve has a central hole at its interior center, and the front end of the guide ring is designed to overlap with the central hole of the tool holder.

[0006] Preferably, the diameter of the mandrel is slightly smaller than the diameter of the center hole of the guide ring and the positioning cone sleeve.

[0007] Preferably, the beveled surface of the mandrel is used to locate the offset direction between the guide ring and the center line of the positioning cone sleeve hole.

[0008] Preferably, the outer diameter of one end of the positioning cone sleeve gradually decreases along the axial direction.

[0009] Preferably, the end of the positioning cone sleeve is provided with a boss for connecting the guide ring, and the guide ring is provided with an inner hole.

[0010] Preferably, the outer circumference of the guide ring has a groove.

[0011] Preferably, the groove wall of the guide ring is inclined at 60°.

[0012] Preferably, the diameter of the boss of the positioning cone sleeve is φ34, and the inner diameter of the guide ring is φ34.

[0013] Preferably, the mandrel is provided with a handle, which facilitates the operator to rotate or adjust the position of the mandrel.

[0014] In summary, this utility model has the following beneficial technical effects:

[0015] This utility model's calibration fixture for the tool changer arm and spindle tool changer position effectively solves the problems of traditional tool changer position adjustment relying excessively on maintenance personnel's experience, unstable accuracy, and cumbersome operation. Through the ingenious cooperation of the positioning cone sleeve and guide ring, combined with the precise detection and adjustment function of the mandrel, rapid and efficient coarse positioning and precise adjustment are achieved. The special taper design of the positioning cone sleeve and the high-precision inner hole of the guide ring ensure rapid initial alignment of the tool changer arm and spindle, significantly improving adjustment efficiency.

[0016] This invention significantly improves the accuracy and reliability of tool change position calibration. The beveled design of the mandrel indicates the offset direction of the center line between the guide ring and the positioning cone sleeve hole, providing a clear basis for adjustment. Maintenance personnel can quickly determine and correct the relative positional deviation between the spindle and the tool changer arm based solely on the position of the top of the mandrel's beveled surface, ensuring precise concentricity between the tool and the spindle. This effectively avoids machining quality problems and equipment damage risks caused by tool change position deviations, significantly improving the precision and stability of machining.

[0017] Furthermore, this invention boasts wide applicability and excellent ease of operation. The gradient design of the outer diameter of the positioning cone sleeve's rear end allows it to adapt to different tool changer arms and spindles of the same diameter as the HSK63, greatly expanding the tooling's application range. The overall structure of the tooling is simple and compact, with a clear and straightforward operation process. No complex auxiliary equipment or specialized knowledge is required, allowing ordinary maintenance personnel to quickly learn and operate it. This not only reduces reliance on the technical skills of maintenance personnel but also effectively shortens the tool changer position calibration time, significantly improving the tool changer efficiency and production efficiency of CNC machine tools. It is suitable for various types and specifications of machining centers and other equipment. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of a tooling fixture for calibrating the tool changing arm and the tool changing position of the spindle according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a tooling fixture for calibrating the tool changing arm and the tool changing position of the spindle according to the present invention;

[0020] Figure 3 This is a schematic diagram of a tooling device for calibrating the tool changer arm and the tool changer position of the spindle according to the present invention.

[0021] Figure 4 This is a schematic diagram illustrating the use of a tooling fixture for calibrating the tool changer arm and the tool changer position of the spindle according to this utility model.

[0022] Reference numerals: 1. Positioning cone sleeve; 2. Guide ring; 3. Mandrel. Detailed Implementation

[0023] 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.

[0024] This utility model discloses a fixture for calibrating the tool changer arm and spindle tool changer positions, mainly composed of a positioning cone sleeve 1, a guide ring 2, and a mandrel 3. These components are ingeniously designed and work closely together, enabling high-precision tool changer position calibration.

[0025] The positioning taper sleeve 1 is a metal sleeve with a specific taper. The entire sleeve is connected to the machine tool spindle, with the outer diameter of the rear end gradually decreasing slightly away from the front end. It is fixed by the spindle's clamping device. The front end of the positioning taper sleeve 1 has a boss with a diameter of φ34, used for coarse positioning with the inner hole of the guide ring 2. The center of the positioning taper sleeve 1 has a central hole for guiding the insertion of the mandrel 3. The main function of the boss in the positioning taper sleeve 1 is to provide an initial positioning reference for the tool change position and to cooperate with the groove of the guide ring 2 to complete the coarse positioning task.

[0026] The guide ring 2 is an annular metal sleeve. A groove is formed on its outer surface, and the groove's sidewall is a 60° bevel. It is mounted on the tool holder of the tool changer arm and secured by the tool holder's clamping device. The inner diameter of the guide ring 2's rear end is also φ34, matching the front boss of the positioning cone sleeve 1. The inner surface is smooth and has a tolerance accuracy of 0-0.20mm. The front end of the guide ring 2 is designed to overlap with the center hole (φ20) of the tool holder, allowing the mandrel 3 to be inserted smoothly. The guide ring 2 guides the insertion direction of the mandrel 3 and works with the positioning cone sleeve 1 to complete coarse positioning, while also providing a basis for subsequent precise adjustments. The outer surface of the guide ring 2 is finely machined to ensure the stability and durability of the overall structure.

[0027] The mandrel 3 is a smooth, slender cylindrical rod-shaped component with a beveled surface at one end. The very tip of the bevel is used to determine the offset direction of the centerline between the guide ring 2 and the positioning cone sleeve 1. A black handle is located at the other end, allowing the operator to rotate or adjust the position of the mandrel 3. The diameter of the mandrel 3 is slightly smaller than the diameter of the center holes of the guide ring 2 and the positioning cone sleeve 1 to ensure smooth insertion and completion of concentricity detection and adjustment. The main function of the mandrel 3 is to accurately determine the tool change position and indicate the adjustment direction by rotating it into the center holes of the guide ring 2 and the positioning cone sleeve 1, based on coarse positioning.

[0028] The operation method of this utility model is as follows:

[0029] 1. Install the positioning cone sleeve 1 into the machine tool spindle and fix it by the spindle clamping device;

[0030] 2. Insert the guide ring 2 into the tool holder of the tool changing arm and fix it by the clamping device of the tool holder;

[0031] 3. Manually adjust the machine tool coordinates so that the front end boss of the positioning cone sleeve 1 extends into the inner hole of the guide ring 2 to complete the coarse positioning;

[0032] 4. Insert the mandrel 3 into the guide ring 2, and use the rotation of the mandrel 3 to insert it into the center hole of the positioning cone sleeve 1. Find the offset direction between the center line of the guide ring 2 and the center line of the positioning cone sleeve 1 through the top of the beveled surface of the mandrel 3, determine the adjustment direction, and make precise adjustments to the positions of the spindle and the tool changer arm.

[0033] 5. When the mandrel 3 is fully inserted into the center hole of the guide ring 2 and the positioning cone sleeve 1, the precise tool change position can be quickly determined and the tool change position calibration can be completed.

[0034] The locating cone sleeve 1, guide ring 2, and mandrel 3 in this invention work together to achieve efficient calibration of the tool change position. The locating cone sleeve 1 provides a stable positioning base for the spindle, the guide ring 2 further constrains the initial position of the tool change arm, and the insertion and adjustment of the mandrel 3 ensures precise concentric positioning at the final stage. This fixture has a simple structure, is easy to operate, and effectively improves the efficiency and accuracy of the tool change process, making it suitable for the tool change position calibration needs of various CNC machine tools.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for calibrating the tool changer arm and the spindle tool changer position, characterized in that, It includes a positioning cone sleeve (1) for connecting the machine tool spindle, a guide ring (2) for connecting the tool changer arm tool holder and which can be installed on the positioning cone sleeve (1), and a mandrel (3) that can pass through the guide ring (2) and the positioning cone sleeve (1). The end of the mandrel (3) is provided with a bevel. The mandrel (3) can be inserted into the center hole of the guide ring (2) and the positioning cone sleeve (1) to calibrate the tool change position.

2. The tooling fixture for calibrating the tool changer arm and spindle tool changer position according to claim 1, characterized in that, The positioning cone sleeve (1) has a central hole at its interior center, and the front end of the guide ring (2) is designed to overlap with the central hole of the tool holder.

3. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 2, characterized in that, The diameter of the mandrel (3) is slightly smaller than the diameter of the center hole of the guide ring (2) and the positioning cone sleeve (1).

4. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 3, characterized in that, The oblique surface of the mandrel (3) is used to find the offset direction between the guide ring (2) and the center line of the positioning cone sleeve (1) hole.

5. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 4, characterized in that, The outer diameter of one end of the positioning cone sleeve (1) gradually decreases along the axial direction.

6. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 5, characterized in that, The end of the positioning cone sleeve (1) is provided with a boss for connecting the guide ring (2), and the guide ring (2) is provided with an inner hole.

7. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 6, characterized in that, The outer surface of the guide ring (2) has a groove.

8. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 7, characterized in that, The groove wall of the groove opened on the outer circular surface of the guide ring (2) is inclined at 60°.

9. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 6, characterized in that, The diameter of the boss of the positioning cone sleeve (1) is φ34, and the inner diameter of the guide ring (2) is φ34.

10. The tooling fixture for calibrating the tool changer arm and the spindle tool changer position according to claim 4, characterized in that, The mandrel (3) is provided with a handle, which makes it easy for the operator to rotate or adjust the position of the mandrel (3).

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