Cutter mounting structure of numerical control milling machine

Abstract

The utility model relates to the technical field of numerical control milling machines, in particular to a numerical control milling machine cutter installation structure which comprises a cutter, the cutter is movably inserted into a cutter groove, the cutter groove is formed in the surface of a main shaft, a limiting rod installation groove is formed in the inner wall of the cutter groove, and one end of a limiting rod is movably inserted into the limiting rod installation groove. The other end of the limiting rod is movably inserted into a limiting groove, and the limiting groove is formed in the surface of the cutter. The tool has the beneficial effects that when the tool needs to be replaced, the limiting rod only needs to be completely retracted into the limiting rod mounting groove, the limiting rod retreats from the limiting groove, the tool can be pulled out from the tool groove, and disassembly of the tool and the main shaft is completed; and then, a new cutter is inserted into the cutter groove, after a limiting groove formed in the surface of the new cutter is aligned with the limiting rod mounting groove, one end of the limiting rod is inserted into the limiting groove, the other end of the limiting rod stays in the limiting rod mounting groove, replacement of the cutter can be completed, a third-party tool is not needed in the replacement process, and operation is easy and fast.

Description

Technical Field

[0001] The utility model relates to the field of numerical control milling machines, in particular to a tool installation structure for numerical control milling machines. Background Art

[0002] A CNC milling machine is a machine tool that uses digital signals to control the movement of the tool. It can automatically complete milling tasks according to computer program instructions. CNC milling machines are widely used in the field of mechanical processing, especially in mold manufacturing, automotive parts, aerospace parts and various precision parts processing. The tool is an important component of the CNC milling machine for processing parts.

[0003] In the prior art, a tool groove is usually opened on the main shaft, and the tool is inserted into the tool groove. Screw holes are opened at corresponding positions on the sides of the main shaft and the tool. The screws installed in the screw holes of the main shaft are screwed into the screw holes of the tool to complete the installation of the tool. This installation method has a simple structure and low processing difficulty.

[0004] However, the tool installation structure in the prior art requires the use of third-party tools such as screwdrivers when replacing the tools, and the specifications of the screwdrivers must match the screws. If no matching third-party tools can be found, the tool cannot be replaced smoothly for the CNC milling machine. Utility Model Content

[0005] The utility model aims to provide a tool installation structure for a numerically controlled milling machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC milling machine tool installation structure, comprising: a tool, the tool is movably inserted in a tool groove, the tool groove is arranged on the surface of the spindle, a limit rod installation groove is arranged on the inner wall of the tool groove, one end of the limit rod is movably inserted in the limit rod installation groove, the other end of the limit rod is movably inserted in the limit groove, and the limit groove is arranged on the surface of the tool.

[0007] Preferably, two groups of the limiting rods are provided, and the two groups of limiting rods are symmetrically distributed about the axial direction of the tool.

[0008] Preferably, the limiting rod is in a circular rod structure, one end of the limiting rod extending into the limiting rod installation slot is fixed with a spring, and the other end of the spring is fixed to the inner wall of the limiting rod installation slot.

[0009] Preferably, a pull rod hole is opened on the surface of the main shaft, the pull rod hole is a round hole structure, the pull rod hole and the limit rod installation groove are connected, and a pull rod is movably inserted in the pull rod hole.

[0010] Preferably, one end of the pull rod extends into the limit rod mounting groove, the end of the pull rod extending into the limit rod mounting groove is fixed on the surface of the limit rod, the other end of the pull rod extends out of the pull rod hole, and a stop plate is fixed to the end of the pull rod extending out of the pull rod hole. The stop plate has a circular plate structure, and the diameter of the stop plate is larger than the diameter of the pull rod hole.

[0011] Preferably, a pull ring is fixed to one end of the stop plate away from the pull rod.

[0012] Preferably, a guide rail is fixed to the bottom end of the spindle, a slider is fixed on the surface of the tool, the slider is movably inserted in the guide rail, the guide rail is arranged directly below the limiting rod installation slot, and the slider is arranged directly below the limiting slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The tool installation structure for a CNC milling machine proposed by the utility model has the advantages that when the tool needs to be replaced, the limit rod only needs to be fully retracted into the limit rod installation groove, and the limit rod will be withdrawn from the limit groove, and the tool can be pulled out of the tool groove, thus completing the disassembly of the tool and the spindle; then, a new tool is inserted into the tool groove, and the limit groove opened on the surface of the new tool is aligned with the limit rod installation groove, and then one end of the limit rod is inserted into the limit groove, and the other end of the limit rod stays in the limit rod installation groove, thus completing the replacement of the tool. No third-party tools are required during the replacement process, and the operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0019] In the figure: tool 1, spindle 2, limit rod installation slot 3, limit slot 4, limit rod 5, pull rod hole 6,

[0020] Pull rod 7, spring 8, stop plate 9, pull ring 10, knife groove 11, guide rail 12, slider 13. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution: a CNC milling machine tool installation structure, comprising: a tool 1, the tool 1 is movably inserted in a tool groove 11, the tool groove 11 is arranged on the surface of a spindle 2, a limit rod installation groove 3 is arranged on the inner wall of the tool groove 11, one end of a limit rod 5 is movably inserted in the limit rod installation groove 3, the other end of the limit rod 5 is movably inserted in a limit groove 4, the limit groove 4 is arranged on the surface of the tool 1, and two groups of limit rods 5 are arranged, and the two groups of limit rods 5 are symmetrically distributed about the axial direction of the tool 1.

[0024] In actual use, when the tool 1 needs to be replaced, it is only necessary to retract the limit rod 5 completely into the limit rod mounting groove 3, and the limit rod 5 will withdraw from the limit groove 4, and the tool 1 can be pulled out from the tool groove 11, completing the disassembly of the tool 1 and the spindle 2; then, insert the new tool 1 into the tool groove 11 and align the limit groove 4 opened on the surface of the new tool 1 with the limit rod mounting groove 3, and then insert one end of the limit rod 5 into the limit groove 4, and the other end of the limit rod 5 stays in the limit rod mounting groove 3, and the replacement of the tool 1 can be completed. No third-party tools are required during the replacement process, and the operation is simple and quick.

[0025] Embodiment 2

[0026] On the basis of Example 1, in order to realize the control of the position of the limit rod 5, the limit rod 5 has a circular rod body structure, and one end of the limit rod 5 extending into the limit rod mounting groove 3 is fixed with a spring 8, and the other end of the spring 8 is fixed on the inner wall of the groove body of the limit rod mounting groove 3. A pull rod hole 6 is opened on the surface of the main shaft 2, and the pull rod hole 6 has a circular hole structure. The pull rod hole 6 and the limit rod mounting groove 3 are connected, and a pull rod 7 is movably inserted in the pull rod hole 6. One end of the pull rod 7 extends into the limit rod mounting groove 3, and the end of the pull rod 7 extending into the limit rod mounting groove 3 is fixed on the surface of the limit rod 5, and the other end of the pull rod 7 extends out of the pull rod hole 6. A stop plate 9 is fixed on the end of the pull rod 7 extending out of the pull rod hole 6. The stop plate 9 has a circular plate-like structure, and the diameter of the stop plate 9 is larger than the diameter of the pull rod hole 6. A pull ring 10 is fixed on the end of the stop plate 9 away from the pull rod 7.

[0027] When the limit rod 5 needs to be completely retracted into the limit rod installation groove 3, it is only necessary to pull the two sets of pull rings 10 to both sides at the same time. The movement of the pull ring 10 drives one end of the pull rod 7 to extend out of the pull rod hole 6 through the stop plate 9, and the pull rod 7 drives the limit rod 5 to move in the same direction, so that the limit rod 5 is completely retracted into the limit rod installation groove 3; the movement of the limit rod 5 causes the spring 8 to be compressed. When a new tool 1 is inserted into the tool groove 11 and one end of the limit rod 5 needs to be reinserted into the limit groove 4, it is only necessary to loosen the pull ring 10 after the limit groove 4 is aligned with the limit rod installation groove 3, and the spring 8 pushes the limit rod 5 toward the direction close to the tool 1 under the action of its own elasticity, so that one end of the limit rod 5 can be pushed into the limit groove 4; if the pull ring 10 is released when the tool 1 is not inserted in the tool groove 11, the limit rod 5 moves in the direction of extending out of the limit rod installation groove 3 under the push of the spring 8, and the movement of the limit rod 5 drives the stop plate 9 to move through the pull rod 7 until the stop plate 9 abuts against the surface of the spindle 2, which can stop the movement of the limit rod 5, thereby preventing the limit rod 5 from escaping from the limit rod installation groove 3; finally, the position of the limit rod 5 can be controlled.

[0028] Embodiment 3

[0029] On the basis of Example 2, in order to facilitate the alignment of the limit groove 4 and the limit rod mounting groove 3, a guide rail 12 is fixed to the bottom end of the spindle 2, and a slider 13 is fixed on the surface of the tool 1. The slider 13 is movably inserted in the guide rail 12. The guide rail 12 is arranged directly below the limit rod mounting groove 3, and the slider 13 is arranged directly below the limit groove 4.

[0030] When inserting the tool 1 into the tool groove 11, align the slider 13 with the guide rail 12. The slider 13 is set directly below the limit groove 4, and the guide rail 12 is set directly below the limit rod mounting groove 3. Then, when the slider 13 is inserted into the guide rail 12, the limit groove 4 can be aligned with the limit rod mounting groove 3, thereby facilitating the alignment of the limit groove 4 with the limit rod mounting groove 3.

[0031] In actual use, when the tool 1 needs to be replaced, it is only necessary to fully retract the limit rod 5 into the limit rod installation groove 3, and the limit rod 5 will withdraw from the limit groove 4, and the tool 1 can be pulled out from the tool groove 11, and the disassembly of the tool 1 and the spindle 2 is completed; then, the new tool 1 is inserted into the tool groove 11 and the limit groove 4 opened on the surface of the new tool 1 is aligned with the limit rod installation groove 3, and then one end of the limit rod 5 is inserted into the limit groove 4, and the other end of the limit rod 5 stays in the limit rod installation groove 3, and the replacement of the tool 1 is completed. The replacement process does not require any third-party tools, and the operation is simple and quick. When the limit rod 5 needs to be completely retracted into the limit rod installation groove 3, it is only necessary to pull the two sets of pull rings 10 to both sides at the same time. The movement of the pull ring 10 drives one end of the pull rod 7 to extend out of the pull rod hole 6 through the stop plate 9, and the pull rod 7 drives the limit rod 5 to move in the same direction, so that the limit rod 5 is completely retracted into the limit rod installation groove 3. The movement of the limit rod 5 causes the spring 8 to be compressed, and when the new tool 1 is inserted into the tool groove 11, one end of the limit rod 5 needs to be re-engaged. When inserting into the limit groove 4, it is only necessary to loosen the pull ring 10 after the limit groove 4 is aligned with the limit rod mounting groove 3. Then, the spring 8 will push the limit rod 5 in the direction close to the tool 1 under its own elastic action, and one end of the limit rod 5 can be pushed into the limit groove 4; if the pull ring 10 is released when the tool 1 is not inserted in the tool groove 11, the limit rod 5 will move in the direction of extending out of the limit rod mounting groove 3 under the push of the spring 8, and the movement of the limit rod 5 drives the stop plate 9 to move through the pull rod 7 until the stop plate 9 contacts the surface of the spindle 2. After the surface is formed, the limit rod 5 can be stopped from moving, thereby preventing the limit rod 5 from escaping from the limit rod mounting groove 3; finally, the position of the limit rod 5 can be controlled; when the tool 1 is inserted into the tool groove 11, the slider 13 is aligned with the guide rail 12, the slider 13 is arranged directly below the limit groove 4, and the guide rail 12 is arranged directly below the limit rod mounting groove 3, then when the slider 13 is inserted into the guide rail 12, the limit groove 4 can be aligned with the limit rod mounting groove 3, thereby facilitating the alignment of the limit groove 4 with the limit rod mounting groove 3.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC milling machine tool installation structure, comprising: A tool (1), the tool (1) is movably inserted in a tool groove (11), and the tool groove (11) is provided on the surface of a spindle (2), characterized in that a limit rod installation groove (3) is provided on the inner wall of the tool groove (11), one end of a limit rod (5) is movably inserted in the limit rod installation groove (3), and the other end of the limit rod (5) is movably inserted in a limit groove (4), and the limit groove (4) is provided on the surface of the tool (1).

2. A CNC milling machine tool installation structure according to claim 1, characterized in that: The limiting rods (5) are provided in two groups, and the two groups of limiting rods (5) are symmetrically distributed with respect to the axial direction of the tool (1).

3. The CNC milling machine tool installation structure according to claim 1, characterized in that: The limiting rod (5) is in the form of a circular rod body structure, one end of the limiting rod (5) extending into the limiting rod installation groove (3) is fixed with a spring (8), and the other end of the spring (8) is fixed to the inner wall of the limiting rod installation groove (3).

4. A CNC milling machine tool installation structure according to claim 3, characterized in that: A pull rod hole (6) is provided on the surface of the main shaft (2). The pull rod hole (6) is a round hole structure. The pull rod hole (6) and the limit rod installation groove (3) are connected to each other. A pull rod (7) is movably inserted into the pull rod hole (6).

5. A CNC milling machine tool installation structure according to claim 4, characterized in that: One end of the pull rod (7) extends into the limit rod installation groove (3), the end of the pull rod (7) extending into the limit rod installation groove (3) is fixed on the surface of the limit rod (5), the other end of the pull rod (7) extends out of the pull rod hole (6), and a stop plate (9) is fixed to the end of the pull rod (7) extending out of the pull rod hole (6), the stop plate (9) is a circular plate structure, and the diameter of the stop plate (9) is greater than the diameter of the pull rod hole (6).

6. A CNC milling machine tool mounting structure according to claim 5, characterized in that: A pull ring (10) is fixed to one end of the stop plate (9) away from the pull rod (7).

7. The CNC milling machine tool installation structure according to claim 1, characterized in that: A guide rail (12) is fixed at the bottom end of the spindle (2), a slider (13) is fixed on the surface of the tool (1), the slider (13) is movably inserted in the guide rail (12), the guide rail (12) is arranged directly below the limiting rod installation groove (3), and the slider (13) is arranged directly below the limiting groove (4).

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