Tool changing structure of milling machine

Abstract

The utility model discloses a tool changing structure of a milling machine and relates to the field of milling machine devices. The tool changing structure of the milling machine comprises a milling head arranged on the milling machine, a milling cutter is arranged at the bottom of the milling head, a blind rivet is arranged at the top of the milling cutter, a vertical rod is arranged at the top of the milling cutter, and the vertical rod is used for fixing the milling blind rivet; a ball piece and a spring are arranged at the top of the vertical rod, the ball piece is used for clamping and fixing the blind rivet, and the spring is used for resetting the ball piece. According to the tool changing structure of the milling machine, the vertical rod and the ball piece are arranged on the milling cutter, the vertical rod is inserted into the blind rivet, the connection fixity between the milling cutter and the blind rivet can be improved, and the situation that a rubber part on the blind rivet is prone to torsional fracture due to the fact that the rotating speed of the milling cutter is too high is reduced; and a blind rivet fractured in the milling head can be quickly pulled out, and the efficiency of replacing, disassembling and assembling the milling cutter is improved.

Description

Technical Field

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

[0002] A milling machine is a machine tool that uses a milling cutter to process various surfaces of a workpiece. Usually, the rotation of the milling cutter is the main motion, and the movement of the workpiece and the milling cutter is the feed motion. It is a machine tool that performs milling, drilling and boring on the workpiece and is widely used in mechanical manufacturing and repair departments.

[0003] The existing rubber part of the rivet on the milling cutter is prone to torsion fracture due to the excessively fast rotation speed of the milling cutter, and the broken rivet part is prone to get stuck inside the milling machine, which is inconvenient to remove, thus reducing the efficiency of milling cutter replacement;

[0004] The reason for this problem is that, currently, the milling cutter is mainly installed on a milling machine for processing. Since the hardness of the rubber part on the rivet on the top of the milling cutter is limited, the rubber part is prone to torsional fracture due to the excessive rotation speed of the milling cutter. Moreover, when the milling cutter is replaced, the broken rivet part is easy to get stuck inside the milling machine, which is inconvenient to remove, thus reducing the efficiency of milling cutter replacement. In view of the shortcomings of the existing technology, we propose a milling machine tool changing structure to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a tool changing structure for a milling machine, which solves the problem that the rubber part of the rivet on the current milling cutter is easily torsionally broken due to the excessively fast rotation speed of the milling cutter, and the broken rivet part is easily stuck inside the milling machine, making it difficult to remove it, thereby reducing the efficiency of milling cutter replacement.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a milling machine tool changing structure, comprising a milling head arranged on the milling machine, a milling cutter is arranged at the bottom of the milling head, a pull nail is arranged at the top of the milling cutter, an assembly unit is arranged between the milling cutter and the pull nail, and the assembly unit includes;

[0008] A vertical rod, which is arranged on the top of the milling cutter and is used to fix the milling rivets;

[0009] A spherical piece and a spring are distributed on the top of the vertical rod. The spherical piece is used to clamp and fix the pull nail, and the spring is used to reset the spherical piece.

[0010] Preferably, a screw hole is provided on the top of the milling cutter, and the vertical rod is fixedly connected inside the screw hole.

[0011] Preferably, the pull nail is rotatably connected to the inside of the screw hole, a circular groove is provided at the bottom of the pull nail, and the vertical rod is inserted into the inside of the circular groove.

[0012] Preferably, a groove is formed at the top of the vertical rod, and a convex part is fixedly connected to the bottom of the spherical part. The convex part is slidably connected to the inside of the groove, and the convex part is used to limit the spherical part.

[0013] Preferably, the spring is fixedly connected to the side wall of the convex member, and the end of the spring is fixedly connected to the inside of the groove.

[0014] Preferably, the assembly unit further comprises:

[0015] A clamping groove and a conical block, wherein the clamping groove is arranged inside the circular groove, and the conical block is fixedly connected inside the clamping groove.

[0016] Preferably, the spherical piece is clamped inside the clamping groove, the conical block is inserted between the spherical pieces, and a tool is provided at the bottom of the milling cutter.

[0017] The utility model discloses a tool changing structure for a milling machine, which has the following beneficial effects: the tool changing structure for the milling machine, by arranging a vertical rod and a spherical part on the milling cutter, and by inserting the vertical rod into the inside of the pull rivet, can increase the connection fixation between the milling cutter and the pull rivet, and reduce the risk of the rubber part on the pull rivet being easily torsionally broken due to the excessively fast rotation speed of the milling cutter. At the same time, by sliding the spherical part into a slot on the pull rivet, the pull rivet broken inside the milling head can be quickly pulled out, thereby increasing the efficiency of replacing and disassembling the milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the milling head of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the milling cutter of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the vertical rod of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the spherical member of the utility model;

[0023] Figure 5This is a schematic diagram of the structure of the pull nail of the utility model;

[0024] Figure 6 The utility model is a schematic diagram of the internal structure of the pull nail.

[0025] In the figure: 1, milling head; 2, milling cutter; 201, tool; 202, vertical rod; 203, screw hole; 204, groove; 3, rivet; 301, circular groove; 302, conical block; 303, slot; 4, spherical part; 401, convex part; 402, spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on 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.

[0027] The embodiment of the present application provides a tool changing structure for a milling machine, thereby solving the problem that the rubber part of the rivet on the current milling cutter is easily torsionally broken due to the excessively fast rotation speed of the milling cutter, and the broken rivet part is easily stuck inside the milling machine, making it difficult to remove it, thereby reducing the efficiency of milling cutter replacement.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model embodiment discloses a tool changing structure for a milling machine.

[0030] According to the attached Figure 1-6 As shown, a tool changing structure of a milling machine comprises a milling head 1 arranged on the milling machine, a milling cutter 2 is arranged at the bottom of the milling head 1, a pull nail 3 is arranged at the top of the milling cutter 2, an assembly unit is arranged between the milling cutter 2 and the pull nail 3, and the assembly unit comprises;

[0031] A vertical rod 202 is arranged on the top of the milling cutter 2, and the vertical rod 202 is used to fix the rivet 3;

[0032] The spherical member 4 and the spring 402 are distributed on the top of the vertical rod 202 . The spherical member 4 is used to clamp and fix the rivet 3 , and the spring 402 is used to reset the spherical member 4 .

[0033] A screw hole 203 is formed on the top of the milling cutter 2 , and the vertical rod 202 is fixedly connected inside the screw hole 203 .

[0034] The rivet 3 is rotatably connected to the inside of the screw hole 203. A circular groove 301 is provided at the bottom of the rivet 3. The vertical rod 202 is inserted into the inside of the circular groove 301. By threading the rivet 3 into the inside of the screw hole 203, the vertical rod 202 inside the screw hole 203 will be simultaneously inserted into the circular groove 301 inside the rivet 3. The vertical rod 202 can increase the connection fixity between the milling cutter 2 and the rivet 3, and can prevent the rubber part on the rivet 3 from being easily torsionally fractured due to the excessively fast rotation speed of the milling cutter 2.

[0035] A groove 204 is provided at the top of the vertical rod 202, and a convex part 401 is fixedly connected to the bottom of the spherical part 4. The convex part 401 is slidably connected to the inside of the groove 204, and the convex part 401 is used to limit the spherical part 4. When the vertical rod 202 on the milling cutter 2 is inserted into the circular groove 301 of the rivet 3, the conical block 302 in the circular groove 301 will squeeze multiple groups of spherical parts 4 outward until the spherical part 4 is clamped in the clamping groove 303, which can further fix the rivet 3. The rivet 3 broken inside the milling head 1 can be pulled out through the spherical part 4, avoiding the situation where the top of the rivet 3 is broken inside the milling head 1, which makes it inconvenient to quickly remove the damaged rivet 3.

[0036] The spring 402 is fixedly connected to the side wall of the convex part 401, and the end of the spring 402 is fixedly connected to the inside of the groove 204. When the rivet 3 is rotated upward for disassembly, the conical block 302 will be driven to move upward. At this time, the spherical part 4 will be reset by the pulling force of the spring 402, and multiple groups of spherical parts 4 will move and contract. At this time, the vertical rod 202 can be pulled out of the circular groove 301 to disassemble the rivet 3.

[0037] The assembly unit also includes;

[0038] The clamping groove 303 and the conical block 302 , the clamping groove 303 is opened inside the circular groove 301 , and the conical block 302 is fixedly connected inside the clamping groove 303 .

[0039] The spherical member 4 is clamped in the clamping groove 303 , and the conical block 302 is inserted between the spherical members 4 . A tool 201 is provided at the bottom of the milling cutter 2 , and the workpiece can be processed by the tool 201 .

[0040] When the utility model is in use, the rivet 3 is first threadedly inserted into the screw hole 203 on the milling cutter 2, and at the same time, the vertical rod 202 inside the screw hole 203 will be inserted into the circular groove 301 on the rivet 3. At this time, the conical block 302 in the circular groove 301 will squeeze the spherical part 4 on the top of the vertical rod 202 outward until the spherical part 4 is clamped in the clamping groove 303, which will fix the rivet 3 and the milling cutter 2. Finally, the milling cutter 2 is installed on the milling head 1 on the milling machine, so that the workpiece can be processed by the milling cutter 2.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tool changing structure for a milling machine, comprising a milling head (1) arranged on the milling machine, a milling cutter (2) being arranged at the bottom of the milling head (1), characterized in that: A pull nail (3) is arranged on the top of the milling cutter (2), and an assembly unit is arranged between the milling cutter (2) and the pull nail (3), and the assembly unit comprises: A vertical rod (202) is arranged on the top of the milling cutter (2), and the vertical rod (202) is used to fix the milling rivet (3); A spherical member (4) and a spring (402), wherein the spherical member (4) and the spring (402) are distributed on the top of the vertical rod (202), the spherical member (4) is used to clamp and fix the pull nail (3), and the spring (402) is used to reset the spherical member (4).

2. A milling machine tool changing structure according to claim 1, characterized in that: A screw hole (203) is provided on the top of the milling cutter (2), and the vertical rod (202) is fixedly connected inside the screw hole (203).

3. A milling machine tool changing structure according to claim 1, characterized in that: The pull nail (3) is rotatably connected to the inside of the screw hole (203); a circular groove (301) is provided at the bottom of the pull nail (3); and the vertical rod (202) is inserted into the inside of the circular groove (301).

4. A milling machine tool changing structure according to claim 1, characterized in that: A groove (204) is provided at the top of the vertical rod (202), a convex piece (401) is fixedly connected to the bottom of the spherical piece (4), the convex piece (401) is slidably connected inside the groove (204), and the convex piece (401) is used to limit the spherical piece (4).

5. The tool changing structure for a milling machine according to claim 1, characterized in that: The spring (402) is fixedly connected to the side wall of the convex part (401), and the end of the spring (402) is fixedly connected to the inside of the groove (204).

6. The tool changing structure for a milling machine according to claim 1, characterized in that: The assembly unit also includes: The clamping groove (303) and the conical block (302), wherein the clamping groove (303) is opened inside the circular groove (301), and the conical block (302) is fixedly connected inside the clamping groove (303).

7. A tool changing structure for a milling machine according to claim 6, characterized in that: The spherical piece (4) is clamped inside the clamping groove (303), the conical block (302) is inserted between the spherical pieces (4), and a tool (201) is provided at the bottom of the milling cutter (2).

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