Automatic accessory milling head replacing device of numerical control milling and boring machine

Abstract

The utility model discloses an automatic accessory milling head replacing device of a numerical control milling and boring machine. The device comprises a milling and boring machine body. When an operator needs to replace the milling cutter, the operator needs to dismount the milling cutter on the surface of the milling head assembly and then mount a new milling cutter on the surface of the milling head assembly, and the mounting and dismounting principles of the milling cutter are the same, for example, when the operator needs to mount the milling cutter, the operator adjusts the milling cutter to move to the position below the milling head assembly, and then the new milling cutter is mounted on the surface of the milling head assembly. A clamping assembly is arranged in a milling head assembly, then an operator starts an electric cylinder to contract, so that when a milling cutter moves upwards and the top of the milling cutter moves into the milling head assembly, the clamping assembly is started, then the milling cutter is locked, then the operator starts a first motor to rotate reversely, and in the same way, a second motor, a disc and a supporting rod move towards the right side; the device has the advantage that the accessory milling head is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of milling and boring machines, in particular to a device for automatically replacing an accessory milling head of a numerically controlled milling and boring machine. Background Art

[0002] In large CNC machine tools, such as floor-standing milling and boring machines, planing table milling and boring machines, etc., in order to expand their functional scope, improve processing efficiency, and achieve the long-term development of automation, intelligence, and networking, functional accessory equipment has emerged, and functional accessory milling heads are one of them. Functional accessory milling heads mainly include: extension milling head, vertical milling head, universal milling head, AC milling head, flat turntable, etc. According to the processing plan of the part drawing, you can select one of the accessory milling heads in the head library, or two or even more accessory milling heads in combination to realize the complex processing technology of the part.

[0003] However, after the functional accessory milling head is used for processing, it needs to be safely returned to the head library, or replaced with another accessory milling head for the next processing step. This requires the movement of the machine tool to realize the action of taking out and returning the accessory milling head, and it must be safe and accurate in this process. Only in this way can the advantages of the accessory milling head be fully utilized and the automation of the entire processing process be realized. Therefore, it is necessary to design and modify the automatic replacement device of the accessory milling head of the CNC milling and boring machine to effectively prevent the inconvenience of replacing the accessory milling head. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the purpose of the utility model is to provide a device for automatically replacing the accessory milling head of a CNC milling and boring machine, which has the advantage of facilitating the replacement of the accessory milling head and solves the problem that it is inconvenient to replace the accessory milling head of a CNC milling and boring machine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for automatically replacing accessory milling heads of a CNC milling and boring machine, comprising a milling and boring machine body, a driving box is fixedly connected to the right side of the milling and boring machine body, a threaded rod is movably connected inside the driving box, a movable block is threadedly connected to the surface of the threaded rod, the movable block is movably connected to the driving box, a first motor is fixedly connected to the right side of the driving box, an output end of the first motor is fixedly connected to the threaded rod, an electric cylinder is fixedly connected to the bottom of the movable block, telescopic rods are fixedly connected to the four sides of the bottom of the movable block, a support plate is fixedly connected to the bottom of the telescopic rod, and the support plate is connected to the electric cylinder. The cylinder is fixedly connected, the bottom of the support plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a disc, the first motor is a DC motor, the second motor is a servo motor, the surface of the disc is provided with a slot, and the inside of the slot is movably connected with a docking rod, the surface of the docking rod is fixedly connected with a support rod, the support rod is movably connected to the disc, the surface of the support rod is provided with a groove, and the inside of the groove is fixedly connected with a limiting ring, and the inside of the groove is movably connected with a milling cutter, the surface of the milling cutter is provided with a limiting groove, the limiting ring is movably connected to the limiting groove, and the surface of the milling and boring machine body is provided with a milling head assembly.

[0006] As a preferred embodiment of the utility model, a bearing is fixedly connected inside the drive box, and the bearing is fixedly connected to the threaded rod.

[0007] As a preferred embodiment of the present invention, protective covers are fixedly connected to the surfaces of the first motor and the second motor.

[0008] As a preferred embodiment of the present invention, the support rod is made of plastic material.

[0009] As a preferred embodiment of the utility model, the top of the disc is movably connected with a bolt, and the bolt is threadedly connected to the docking rod.

[0010] As a preferred embodiment of the present invention, a controller is fixedly connected to the left side of the milling and boring machine body, and the controller is respectively connected to the electric cylinder, the first motor and the second motor signals.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adopts that when the operator needs to replace the milling cutter, the operator needs to disassemble the milling cutter on the surface of the milling head assembly, and then install the new milling cutter on the surface of the milling head assembly. The installation and disassembly principles of the milling cutter are the same. For example, when the operator needs to install the milling cutter, the operator adjusts the milling cutter to move to the bottom of the milling head assembly. A clamping assembly is provided inside the milling head assembly. Then the operator starts the electric cylinder to contract, so that the milling cutter moves up. When the top of the milling cutter moves into the milling head assembly, the clamping assembly is started to lock the milling cutter. Then the operator starts the first motor to rotate in the opposite direction. Similarly, the second motor, the disc and the support rod are moved to the right until the support rod is separated from the milling cutter, thereby completing the installation of the milling cutter. The device has the advantage of facilitating the replacement of the accessory milling head.

[0013] 2. The utility model can reduce the friction between the drive box and the threaded rod by setting the bearing, thereby facilitating the rotation of the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the disc structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the docking rod structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the milling cutter structure of the utility model.

[0018] In the figure: 1. milling and boring machine body; 2. drive box; 3. threaded rod; 4. movable block; 5. first motor; 6. electric cylinder; 7. telescopic rod; 8. support plate; 9. second motor; 10. disc; 11. docking rod; 12. support rod; 13. groove; 14. limit ring; 15. milling cutter; 16. limit groove; 17. bolt; 18. milling head assembly. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0020] like Figures 1 to 4As shown, a device for automatically replacing an accessory milling head of a CNC milling and boring machine comprises a milling and boring machine body 1, a driving box 2 is fixedly connected to the right side of the milling and boring machine body 1, a threaded rod 3 is movably connected inside the driving box 2, a movable block 4 is threadedly connected to the surface of the threaded rod 3, the movable block 4 is movably connected to the driving box 2, a first motor 5 is fixedly connected to the right side of the driving box 2, an output end of the first motor 5 is fixedly connected to the threaded rod 3, an electric cylinder 6 is fixedly connected to the bottom of the movable block 4, telescopic rods 7 are fixedly connected to the four sides of the bottom of the movable block 4, a support plate 8 is fixedly connected to the bottom of the telescopic rod 7, the support plate 8 is fixedly connected to the electric cylinder 6, and the bottom of the support plate 8 is fixedly connected to the first Two motors 9, the output end of the second motor 9 is fixedly connected to a disc 10, the first motor 5 is a DC motor, the second motor 9 is a servo motor, the surface of the disc 10 is provided with a slot, and the inside of the slot is movably connected to a docking rod 11, the surface of the docking rod 11 is fixedly connected to a support rod 12, the support rod 12 is movably connected to the disc 10, the surface of the support rod 12 is provided with a groove 13, and the inside of the groove 13 is fixedly connected to a limiting ring 14, and the inside of the groove 13 is movably connected to a milling cutter 15, the surface of the milling cutter 15 is provided with a limiting groove 16, the limiting ring 14 is movably connected to the limiting groove 16, and the surface of the milling and boring machine body 1 is provided with a milling head assembly 18.

[0021] refer to Figure 1 A bearing is fixedly connected to the interior of the driving box 2, and the bearing is fixedly connected to the threaded rod 3.

[0022] As a technical optimization solution of the present invention, the friction between the drive box 2 and the threaded rod 3 can be reduced by setting the bearing, thereby facilitating the rotation of the threaded rod 3.

[0023] refer to Figure 1 Protective covers are fixedly connected to the surfaces of the first motor 5 and the second motor 9.

[0024] As a technical optimization solution of the present invention, the provision of a protective cover can protect the first motor 5 and the second motor 9.

[0025] refer to Figure 1 and Figure 2 , the support rod 12 is made of plastic material.

[0026] As a technical optimization solution of the present invention, the support rod 12 made of plastic material has the advantages of high hardness, good toughness, easy processing and good elasticity.

[0027] refer to Figures 1 to 3 The top of the disc 10 is movably connected with a bolt 17, and the bolt 17 is threadedly connected to the docking rod 11.

[0028] As a technical optimization solution of the present invention, the connection rod 11 can be locked by setting the bolt 17, thereby locking the support rod 12.

[0029] refer to Figure 1 A controller is fixedly connected to the left side of the milling and boring machine body 1, and the controller is signal-connected to the electric cylinder 6, the first motor 5 and the second motor 9 respectively.

[0030] As a technical optimization solution of the present invention, the setting of the controller can facilitate the operator to control the start and stop of the electric cylinder 6, the first motor 5 and the second motor 9.

[0031] The working principle and use process of the utility model: during use, when the operator needs to replace the milling cutter 15, the operator needs to disassemble the milling cutter 15 on the surface of the milling head assembly 18, and then install the new milling cutter 15 on the surface of the milling head assembly 18. The installation and removal principles of the milling cutter 15 are the same. For example, when the operator needs to install the milling cutter 15, the operator starts the second motor 9 to rotate and drive the disc 10 to rotate, and then drives the support rod 12 to rotate, and rotates the new milling cutter 15 to the far left. Then the operator starts the first motor 5 to rotate and drive the threaded rod 3 to rotate, so that the movable block 4, the telescopic rod 7, the support plate 8, the second motor 9, and the disc 10 are rotated. , the support rod 12 and the milling cutter 15 move to the left until the milling cutter 15 moves to the bottom of the milling head assembly 18. A clamping assembly is provided inside the milling head assembly 18. Then the operator starts the electric cylinder 6 to contract, thereby driving the support plate 8, the second motor 9, the disc 10, the support rod 12 and the milling cutter 15 to move upward. When the top of the milling cutter 15 moves into the milling head assembly 18, the clamping assembly is started to lock the milling cutter 15. Then the operator starts the first motor 5 to rotate in the opposite direction. Similarly, the second motor 9, the disc 10 and the support rod 12 move to the right until the support rod 12 is separated from the milling cutter 15, thereby completing the installation of the milling cutter 15.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although 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 device for automatically replacing an accessory milling head of a CNC milling and boring machine, comprising a milling and boring machine body (1), characterized in that: The right side of the milling and boring machine body (1) is fixedly connected to a drive box (2), the interior of the drive box (2) is movably connected to a threaded rod (3), the surface of the threaded rod (3) is threadedly connected to a movable block (4), the movable block (4) is movably connected to the drive box (2), the right side of the drive box (2) is fixedly connected to a first motor (5), the output end of the first motor (5) is fixedly connected to the threaded rod (3), the bottom of the movable block (4) is fixedly connected to an electric cylinder (6), the bottom of the movable block (4) is fixedly connected to telescopic rods (7) all around, the bottom of the telescopic rod (7) is fixedly connected to a support plate (8), the support plate (8) is fixedly connected to the electric cylinder (6), the bottom of the support plate (8) is fixedly connected to a second motor (9), the second motor (9) The output end of the rotary table (10) is fixedly connected to a disc (10), the first motor (5) is a DC motor, the second motor (9) is a servo motor, a slot is provided on the surface of the rotary table (10), and a docking rod (11) is movably connected to the inside of the slot, a support rod (12) is fixedly connected to the surface of the docking rod (11), the support rod (12) is movably connected to the rotary table (10), a groove (13) is provided on the surface of the support rod (12), a limiting ring (14) is fixedly connected to the inside of the groove (13), a milling cutter (15) is movably connected to the inside of the groove (13), a limiting groove (16) is provided on the surface of the milling cutter (15), the limiting ring (14) is movably connected to the limiting groove (16), and a milling head assembly (18) is provided on the surface of the milling and boring machine body (1).

2. The automatic accessory milling head replacement device for a CNC milling and boring machine according to claim 1, characterized in that: A bearing is fixedly connected inside the drive box (2), and the bearing is fixedly connected to the threaded rod (3).

3. The automatic accessory milling head replacement device for a CNC milling and boring machine according to claim 1, characterized in that: Protective covers are fixedly connected to the surfaces of the first motor (5) and the second motor (9).

4. The automatic accessory milling head replacement device for a CNC milling and boring machine according to claim 1, characterized in that: The support rod (12) is made of plastic material.

5. The automatic accessory milling head replacement device for a CNC milling and boring machine according to claim 1, characterized in that: A bolt (17) is movably connected to the top of the disc (10), and the bolt (17) is threadedly connected to the docking rod (11).

6. The automatic accessory milling head replacement device for a CNC milling and boring machine according to claim 1, characterized in that: A controller is fixedly connected to the left side of the milling and boring machine body (1), and the controller is signal-connected to the electric cylinder (6), the first motor (5) and the second motor (9) respectively.

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