Modularized stepped milling cutter capable of quickly changing cutter

Abstract

The utility model discloses a modular stepped milling cutter capable of quickly changing cutters, which comprises a bearing table, a first guide rail and two sliding seats, the first guide rail is fixed on the bearing table and is parallel to the long edge of the bearing table, the sliding seats are connected on the first guide rail in a sliding manner, the sliding seats are symmetrically arranged in a staggered manner, the sliding seats are connected with butt joint seats in a sliding manner, and the butt joint seats are fixed on the bearing table. A milling cutter fixing cylinder is fixed to the butt joint base, a stepped milling cutter is connected into the milling cutter fixing cylinder, and a cutter changing mechanism is further arranged on the bearing table. The utility model has the beneficial effects that an alternate cutter changing structure is formed through the cutter changing mechanism, so that the alternate operation and the replacement of the milling cutters are synchronously carried out, when one group of milling cutters works at a processing position, the other group of milling cutters are disassembled and assembled at a preparation position, and meanwhile, the switching process is finished in a processing gap or continuous processing; according to the alternate tool changing structure, the problem of long shutdown time of traditional milling cutter replacement is fundamentally solved through double-station parallel operation and a rapid switching mechanism, and the alternate tool changing structure is particularly suitable for high-precision and high-rhythm numerical control machining scenes.

Description

Technical Field

[0001] This utility model relates to a stepped end mill, specifically a modular stepped end mill with quick tool change capability, belonging to the field of stepped end mill technology. Background Technology

[0002] A stepped end mill, also known as a stepped milling cutter, is a milling tool used for machining stepped parts. It mainly consists of a tool holder, spindle, cutting edge, and guide groove. Through the cutting edge cutting the workpiece surface and the auxiliary action of the guide groove, the surface shape of the workpiece can be machined. Stepped end mills are widely used in the manufacturing industry, especially in the fields of automotive parts, aircraft parts, and mechanical parts. They have high forming accuracy and surface quality, and can greatly improve the machining efficiency and quality of workpieces.

[0003] However, most existing stepped end mills have various problems. For example, in the quick-change end mill disclosed in announcement number CN222403622 U, although it simplifies the clamping process and shortens the overall tool change time, in this technical solution and most current technical solutions, although it simplifies the clamping process, there is a common problem of needing to stop the machine for disassembly during the tool change process. For example, when changing a stepped end mill, it needs to be completely disassembled, recalibrated and reinstalled. During this process, the machining operation needs to be stopped until the tool change is completed before the workpiece can be machined again, resulting in excessively long machining intervals, cumbersome operation steps and low replacement efficiency. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the purpose of this utility model is to overcome the aforementioned shortcomings in existing technologies by proposing a modular stepped end mill with quick tool changing capability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular stepped end mill with quick tool change capability includes a support platform, a first guide rail, and a sliding seat. The first guide rail is fixed on the support platform and parallel to the long side of the support platform. The sliding seat is slidably connected to the first guide rail, and two sliding seats are symmetrically and staggered. A docking seat is slidably connected to the sliding seat, and a cutter fixing cylinder is fixed on the docking seat. A stepped end mill is connected inside the cutter fixing cylinder. A tool changing mechanism is also provided on the support platform.

[0007] The tool changing mechanism includes a second guide rail, a limiting groove, and a linkage plate. The second guide rail is fixed on the sliding seat and is arranged parallel to the short side of the support platform. The docking seat is slidably engaged with the second guide rail. The irregularly shaped limiting groove is arranged through the support platform. One end of the linkage plate is fixed on the docking seat, and the other end is slidably engaged with the limiting groove.

[0008] As a further embodiment of this utility model: the tool changing mechanism further includes a guide groove, a clamping plate, a fixed seat, a pulley, a belt, and a servo motor. The guide groove is disposed through the center of the support platform. The clamping plate is fixed on the sliding seat and passes through the guide groove. The fixed seat is fixed to the bottom of the support platform. The pulley is rotatably connected in the fixed seat and there are two symmetrically arranged pulleys. The belt is disposed between two adjacent pulleys. One end of the clamping plate is fixed to the belt. The servo motor is fixed to the bottom of one of the fixed seats, and the output shaft of the servo motor is coaxially fixed with the pulley.

[0009] As a further improvement of this utility model: the clamps on two adjacent sliding seats are staggered in the guide groove, and the two clamps are respectively fixed on both sides of the belt.

[0010] As a further improvement of this utility model: a roller is rotatably connected to one end of the linkage plate that is engaged in the limiting groove.

[0011] As a further improvement of this utility model, the milling cutter fixing cylinder and the docking seat, as well as the milling cutter fixing cylinder and the stepped milling cutter, are all detachably connected by screws.

[0012] As a further improvement of this utility model: buffer rods are symmetrically arranged at both ends of the support platform, and one end of the buffer rod abuts against the sliding seat.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, an alternating tool changing structure is formed by a tool changing mechanism, which realizes the synchronous operation and replacement of milling cutters. When one set of milling cutters is working in the machining position, another set is disassembled and installed in the preparation position. At the same time, the switching process is completed during machining intervals or continuous machining without stopping the machine tool. The alternating tool changing structure fundamentally solves the problem of long downtime for traditional milling cutter replacement through dual-station parallel operation and rapid switching mechanism, and is especially suitable for high-precision and high-paced CNC machining scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the support platform and its connection structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the sliding seat connection structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the tool changing mechanism of this utility model.

[0019] In the diagram: 1. Support platform, 2. First guide rail, 3. Sliding seat, 4. Docking seat, 5. Milling cutter fixing cylinder, 6. Stepped milling cutter, 7. Tool changing mechanism, 71. Second guide rail, 72. Limiting groove, 73. Linkage plate, 74. Guide groove, 75. Clamping plate, 76. Fixed seat, 77. Pulley, 78. Belt, 79. Servo motor, 710. Roller, 8. Buffer rod. Detailed Implementation

[0020] 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. Example 1

[0021] like Figures 1 to 4 As shown, a modular stepped end mill with quick tool change includes a support platform 1, a first guide rail 2, and a sliding seat 3. The first guide rail 2 is fixed on the support platform 1 and parallel to the long side of the support platform 1. The sliding seat 3 is slidably connected to the first guide rail 2, and there are two sliding seats 3 arranged symmetrically and staggeredly. A docking seat 4 is slidably connected to the sliding seat 3. A cutter fixing cylinder 5 is fixed on the docking seat 4. A stepped end mill 6 is connected inside the cutter fixing cylinder 5. A tool changing mechanism 7 is also provided on the support platform 1.

[0022] The tool changing mechanism 7 includes a second guide rail 71, a limiting groove 72, and a linkage plate 73. The second guide rail 71 is fixed on the sliding seat 3 and is arranged parallel to the short side of the support platform 1. The docking seat 4 is slidably engaged with the second guide rail 71. The irregularly shaped limiting groove 72 is arranged through the support platform 1. One end of the linkage plate 73 is fixed on the docking seat 4, and the other end is slidably engaged in the limiting groove 72.

[0023] The tool changing mechanism 7 also includes a guide groove 74, a clamping plate 75, a fixed seat 76, a pulley 77, a belt 78, and a servo motor 79. The guide groove 74 is disposed through the center of the support platform 1. The clamping plate 75 is fixed on the sliding seat 3 and passes through the guide groove 74. The fixed seat 76 is fixed on the bottom of the support platform 1. The pulley 77 is rotatably connected in the fixed seat 76 and there are two symmetrically arranged. The belt 78 is disposed between two adjacent pulleys 77. One end of the clamping plate 75 is fixed on the belt 78. The servo motor 79 is fixed on the bottom of one of the fixed seats 76, and the output shaft of the servo motor 79 is coaxially fixed with the pulley 77.

[0024] In this invention, an alternating tool changing structure is formed by the tool changing mechanism 7, which realizes the synchronous operation and replacement of milling cutters. When one set of milling cutters is working in the machining position, another set is disassembled and installed in the preparation position. At the same time, the switching process is completed during the machining interval or continuous machining without stopping the machine tool. The alternating tool changing structure fundamentally solves the problem of long downtime for traditional milling cutter replacement through dual-station parallel operation and rapid switching mechanism, and is especially suitable for high-precision and high-paced CNC machining scenarios. Example 2

[0025] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0026] The clamping plates 75 on the two adjacent sliding seats 3 are staggered in the guide groove 74, and the two clamping plates 75 are fixed on both sides of the belt 78, so that the belt 78 can drive the two adjacent sliding seats 3 to slide in opposite directions synchronously.

[0027] One end of the linkage plate 73, which is engaged in the limiting groove 72, is rotatably connected to a roller 710, which reduces frictional resistance by rolling the roller 710.

[0028] The milling cutter retaining sleeve 5 and the docking seat 4, as well as the milling cutter retaining sleeve 5 and the stepped milling cutter 6, are all detachably connected by screws. This detachable connection structure allows the stepped milling cutter 6 to be quickly assembled and disassembled.

[0029] The support platform 1 is symmetrically provided with buffer rods 8 at both ends. One end of the buffer rod 8 abuts against the sliding seat 3. The buffer rod 8 buffers the sliding seat 3 to prevent the clamping plate 75 from colliding with the guide groove 74.

[0030] Working principle: When using this stepped end mill, first fix the stepped end mill 6 to be milled in the end mill fixing cylinder 5 with screws. When it is necessary to replace the stepped end mill 6, start the servo motor 79 to drive the pulley 77 to rotate. The pulley 77 drives the belt 78 to move. At this time, the clamping plate 75 moves synchronously with the belt 78 and drives the two adjacent sliding seats 3 to slide synchronously in the opposite direction. At the same time, one end of the linkage plate 73 slides in the limiting groove 72, so that the two adjacent docking seats 4 slide on the second guide rail 71 and are misaligned with each other.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular stepped end mill with quick tool change capability, comprising a support platform (1), a first guide rail (2), and a sliding seat (3), characterized in that, The first guide rail (2) is fixed on the support platform (1) and parallel to the long side of the support platform (1). The sliding seat (3) is slidably connected to the first guide rail (2). There are two sliding seats (3) arranged symmetrically and staggered. A docking seat (4) is slidably connected to the sliding seat (3). A milling cutter fixing cylinder (5) is fixed on the docking seat (4). A stepped milling cutter (6) is connected inside the milling cutter fixing cylinder (5). A tool changing mechanism (7) is also provided on the support platform (1). The tool changing mechanism (7) includes a second guide rail (71), a limiting groove (72) and a linkage plate (73). The second guide rail (71) is fixed on the sliding seat (3) and is arranged parallel to the short side of the support platform (1). The docking seat (4) is slidably engaged with the second guide rail (71). The limiting groove (72) with an irregular structure is arranged through the support platform (1). One end of the linkage plate (73) is fixed on the docking seat (4), and the other end is slidably engaged in the limiting groove (72).

2. The modular stepped end mill with quick tool change capability according to claim 1, characterized in that: The tool changing mechanism (7) also includes a guide groove (74), a clamping plate (75), a fixed seat (76), a pulley (77), a belt (78), and a servo motor (79). The guide groove (74) is disposed through the center of the support platform (1). The clamping plate (75) is fixed on the sliding seat (3) and passes through the guide groove (74). The fixed seat (76) is fixed at the bottom of the support platform (1). The pulley (77) is rotatably connected in the fixed seat (76) and there are two symmetrically arranged. The belt (78) is disposed between two adjacent pulleys (77). One end of the clamping plate (75) is fixed on the belt (78). The servo motor (79) is fixed at the bottom of one of the fixed seats (76), and the output shaft of the servo motor (79) is coaxially fixed with the pulley (77).

3. A modular stepped end mill with quick tool change capability according to claim 2, characterized in that: The clamps (75) on the two adjacent sliding seats (3) are staggered in the guide groove (74), and the two clamps (75) are respectively fixed on both sides of the belt (78).

4. A modular stepped end mill with quick tool change capability according to claim 1, characterized in that: A roller (710) is rotatably connected to one end of the linkage plate (73) that is engaged in the limiting groove (72).

5. A modular stepped end mill with quick tool change capability according to claim 1, characterized in that: The milling cutter fixing cylinder (5) and the docking seat (4), as well as the milling cutter fixing cylinder (5) and the stepped milling cutter (6), are all detachably connected by screws.

6. A modular stepped end mill with quick tool change capability according to claim 1, characterized in that: The support platform (1) is symmetrically provided with buffer rods (8) at both ends, and one end of the buffer rod (8) abuts against the sliding seat (3).

Images