Spiral oil groove machining tool suitable for three-axis machining center

Abstract

The utility model relates to the technical field of machine manufacturing, and discloses a spiral oil groove machining tool suitable for a three-axis machining center, which comprises a foundation plate, a central spindle is arranged in the middle of the top end of the foundation plate, a sliding sleeve is arranged on the outer side of the central spindle, an upper bearing is arranged at one end of the sliding sleeve, and a lower bearing is arranged at the other end of the sliding sleeve. A guide sleeve is mounted on the outer side of the lower bearing, a guide rod is slidably connected to the middle of the guide sleeve, a positioning disc is mounted at the top of the guide sleeve, a workpiece is arranged in the middle of the positioning disc, and air cylinder brackets are mounted on the left side and the right side of the positioning disc. According to the spiral groove machining device, after a workpiece is fixed to the positioning disc and pressed, the main shaft drives the milling cutter to rotate at a high speed, feed, make contact with the supporting rod and feed downwards to machine the inner side of the workpiece, the guide rod drives the guide sleeve to rotate, the positioning disc and the workpiece rotate along with the guide sleeve, and therefore the spiral groove is machined, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a spiral oil groove processing tool suitable for a three-axis machining center. Background Art

[0002] The three-axis machining center is a machine tool used to process complex parts. It converts programming instructions into motion control signals for each axis of the machine tool through the CNC system, drives the spindle and feed system to perform precise cutting processing. Its characteristics are high precision, high efficiency, versatility and good stability. During its operation, a spiral oil tank is required for processing inside it.

[0003] The spiral oil groove is a spiral groove structure that plays a specific role in mechanical parts. The spiral oil groove presents a continuous spiral shape. Its shape can be equal width or gradient width. It can be distributed along the cylindrical surface of the part or other specific shapes of the surface. It is an indispensable part of the machining center.

[0004] The last device in the original process chain is a machining center that can realize three-axis linkage milling. Combined with the characteristics of the newly added oil groove, the oil groove is located on the inner wall of the small hole, and the cross-sectional arc is distributed along the spiral line. The tool cannot enter directly. The tool has a small diameter and low strength, so cutting processing cannot be achieved on this process equipment. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a spiral oil groove processing tool suitable for a three-axis machining center, aiming to improve the problem in the prior art that the tool cannot directly enter and thus cannot perform cutting processing.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a spiral oil tank processing tool suitable for a three-axis machining center, comprising a base plate, a core shaft is installed in the middle of the top of the base plate, a sliding sleeve is provided on the outside of the core shaft, an upper bearing is installed at one end of the sliding sleeve, a lower bearing is provided at the other end of the sliding sleeve, a guide sleeve is installed on the outside of the lower bearing, and a guide rod is slidably connected to the middle of the guide sleeve.

[0007] As a further description of the above technical solution:

[0008] A positioning plate is installed on the top of the guide sleeve, a workpiece is arranged in the middle of the positioning plate, and cylinder brackets are installed on the left and right sides of the positioning plate.

[0009] As a further description of the above technical solution:

[0010] A sliding sleeve is installed on the outside of the guide sleeve, the bottom of the sliding sleeve is connected to the guide rod, support rods are installed on the left and right sides of the top of the sliding sleeve, and threaded holes are opened on the front and back sides of the bottom of the support rods.

[0011] As a further description of the above technical solution:

[0012] A main shaft is provided on the top of the support rod, and a ball-end cutter is installed in the middle of the bottom end of the main shaft.

[0013] As a further description of the above technical solution:

[0014] A rotating and telescopic cylinder is arranged on the top of the cylinder bracket, and a pressure plate is installed on the adjacent sides of the tops of the two rotating and telescopic cylinders.

[0015] As a further description of the above technical solution:

[0016] A spring is provided inside the core shaft, and an adjusting screw is threadedly connected to the bottom of the spring.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the present invention, the workpiece is first positioned on the positioning plate, the rotating telescopic cylinder presses the workpiece through the pressure plate, the milling tool is installed on the machine tool spindle for high-speed rotation and feeding, when the tool contacts the workpiece, the spindle end face contacts the support rod, and continues to feed downward to cut the inner side of the workpiece, the support rod, the sliding sleeve and the guide rod move downward, the core shaft limits the guide rod from moving horizontally, the guide rod drives the guide sleeve to rotate, and then drives the positioning plate and the workpiece to rotate, processing the spiral groove and improving production efficiency.

[0019] 2. In the present invention, the threaded hole at the bottom of the support rod allows the device to be installed more stably, and the spring at the bottom of the core shaft limits the core shaft. The position of the core shaft can be adjusted by installing the adjusting screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a spiral oil tank machining tool suitable for a three-axis machining center proposed by the utility model;

[0021] Figure 2 This is a top view of a spiral oil tank machining tool suitable for a three-axis machining center proposed by the utility model;

[0022] Figure 3 This is a cross-sectional view of a spiral oil tank machining tool suitable for a three-axis machining center proposed by the utility model;

[0023] Figure 4This is an exploded view of the local structure of a spiral oil tank machining tool suitable for a three-axis machining center proposed by the utility model.

[0024] Legend:

[0025] 1. Spindle; 2. Ball-end cutter; 3. Support rod; 4. Workpiece; 5. Positioning plate; 6. Sliding sleeve; 7. Guide sleeve; 8. Pressure plate; 9. Rotary and telescopic cylinder; 10. Cylinder bracket; 11. Guide rod; 12. Mandrel; 13. Spring; 14. Upper bearing; 15. Lower bearing; 16. Base plate; 17. Adjusting screw; 18. Threaded hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1 、 Figure 3 and Figure 4 The present invention provides an embodiment of a spiral oil groove processing tool suitable for a three-axis machining center, comprising a base plate 16, a core shaft 12 is installed in the middle of the top of the base plate 16, a sliding sleeve 6 is provided on the outside of the core shaft 12, one end of the sliding sleeve 6 is installed with an upper bearing 14, the other end of the sliding sleeve 6 is provided with a lower bearing 15, a guide sleeve 7 is installed on the outside of the lower bearing 15, the middle part of the guide sleeve 7 is slidably connected with a guide rod 11, a positioning plate 5 is installed on the top of the guide sleeve 7, a workpiece 4 is provided in the middle of the positioning plate 5, and the workpiece 4 can be installed and fixed by installing the positioning plate 5. Cylinder brackets 10 are installed on the left and right sides of the positioning plate 5, a main shaft 1 is provided on the top of the support rod 3, a ball-end cutter 2 is installed in the middle of the bottom end of the main shaft 1, a rotating telescopic cylinder 9 is provided on the top of the cylinder bracket 10, and a pressure plate 8 is installed on the adjacent side of the top of the two rotating telescopic cylinders 9. The installation of the pressure plate 8 makes the device more stably installed.

[0028] Specifically, first, the workpiece 4 is positioned on the positioning disk 5. In order to ensure that the workpiece 4 remains stable during the processing, a rotating telescopic cylinder 9 is used to apply pressure. The workpiece 4 is fixed on the positioning disk 5 through the pressure plate 8 to ensure that it does not move during the processing. Next, the milling tool is installed on the machine tool spindle 1. The machine tool spindle 1 starts to rotate at high speed and feeds downward. When the milling tool contacts the surface of the workpiece 4, the end face of the spindle 1 will contact the support rod 3. At this time, the spindle 1 continues to feed downward, and the tool begins to cut the inner side of the workpiece 4. During the cutting process, the support rod 3, the sliding sleeve 6 and the guide rod 11 will move downward together. The waist groove on the core shaft 12 limits the translational movement of the guide rod 11, so that it can only move downward. The guide rod 11 causes the guide sleeve 7 to rotate through its double helical groove. The guide sleeve 7 drags the positioning disk 5 during rotation, causing the workpiece 4 to rotate accordingly. Through the above process, the spiral groove is cut and processed, thereby improving production efficiency.

[0029] Reference Figure 1 、 Figure 2 and Figure 3 , a sliding sleeve 6 is installed on the outside of the guide sleeve 7, and the bottom of the sliding sleeve 6 is connected to the guide rod 11. Support rods 3 are installed on the left and right sides of the top of the sliding sleeve 6. Threaded holes 18 are opened on the front and back sides of the bottom of the support rod 3. A spring 13 is provided inside the core shaft 12, and the bottom of the spring 13 is threadedly connected to an adjusting screw 17;

[0030] Specifically, by opening the threaded hole 18 at the bottom of the support rod 3, the installation stability of the device can be further enhanced, making the device more stable during use and less prone to shaking or shifting. At the same time, the spring 13 arranged at the bottom of the core shaft 12 plays a limiting role. The presence of the spring 13 ensures that the core shaft 12 will not exceed the predetermined range of movement during operation, thereby ensuring the normal operation and service life of the device and improving the stability of the device.

[0031] Working principle: First, position the workpiece 4 on the positioning plate 5, rotate the telescopic cylinder 9 to press the workpiece 4 through the pressure plate 8, install the milling tool through the machine tool spindle 1, and rotate downward to feed at high speed. When the tool contacts the workpiece 4, the end face of the spindle 1 contacts the support rod 3, and the spindle 1 feeds downward again, then the tool cuts the inside of the workpiece 4. At the same time, the support rod 3, the sliding sleeve 6 and the guide rod 11 are downward, and the waist groove of the core shaft 12 limits the guide rod 11 to move downward. The guide rod 11 drives the double helical groove of the guide sleeve 7 to rotate the guide sleeve 7, and the guide sleeve 7 drags the positioning plate 5 to rotate the workpiece 4, finally realizing the linkage between the feed motion and the rotation of the workpiece 4, cutting the spiral groove, and improving production efficiency.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spiral oil tank machining tool suitable for a three-axis machining center, comprising a base plate (16), characterized in that: A core shaft (12) is installed in the middle of the top of the base plate (16), a sliding sleeve (6) is provided on the outside of the core shaft (12), an upper bearing (14) is installed on one end of the sliding sleeve (6), a lower bearing (15) is provided on the other end of the sliding sleeve (6), a guide sleeve (7) is installed on the outside of the lower bearing (15), and a guide rod (11) is slidably connected to the middle of the guide sleeve (7).

2. The spiral oil tank machining tool suitable for a three-axis machining center according to claim 1, characterized in that: A positioning plate (5) is installed on the top of the guide sleeve (7), a workpiece (4) is arranged in the middle of the positioning plate (5), and cylinder brackets (10) are installed on the left and right sides of the positioning plate (5).

3. The spiral oil tank machining tool suitable for a three-axis machining center according to claim 1, characterized in that: A sliding sleeve (6) is installed on the outer side of the guide sleeve (7), and the bottom of the sliding sleeve (6) is connected to the guide rod (11). Support rods (3) are installed on the left and right sides of the top of the sliding sleeve (6), and threaded holes (18) are provided on the front and rear sides of the bottom of the support rod (3).

4. The spiral oil tank machining tool suitable for a three-axis machining center according to claim 3, characterized in that: A main shaft (1) is provided at the top of the support rod (3), and a ball-end cutter (2) is installed at the middle of the bottom end of the main shaft (1).

5. The spiral oil tank machining tool suitable for a three-axis machining center according to claim 2, characterized in that: A rotating telescopic cylinder (9) is provided on the top of the cylinder bracket (10), and a pressing plate (8) is installed on the adjacent sides of the tops of the two rotating telescopic cylinders (9).

6. The spiral oil tank machining tool suitable for a three-axis machining center according to claim 1, characterized in that: A spring (13) is provided inside the core shaft (12), and an adjusting screw (17) is threadedly connected to the bottom of the spring (13).

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