A tool quick change device for a vertical machining center

Abstract

The utility model discloses a kind of tool quick-change device for vertical machining center, including tool magazine shell and machine tool spindle, the bottom groove of tool magazine shell is provided with rotary table, the rotary table is rotatably connected with tool magazine shell by pivot, driving mechanism acting on rotary table is provided on the tool magazine shell, the bottom of rotary table is provided with multiple installation grooves, multiple installation grooves are annular array, multiple installation grooves are respectively provided with mounting seat, the bottom of multiple mounting seat is respectively provided with different tool body, the inside of installation groove is provided with first fixing mechanism acting on mounting seat, the bottom of machine tool spindle is provided with another installation groove, the utility model is provided with first fixing mechanism, second fixing mechanism, tool changing plate, adjusting mechanism acting on tool changing plate and clamping mechanism on tool changing plate, can realize the synchronous of disassembly tool and installation tool, efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of machining center technology, specifically to a tool changer for a vertical machining center. Background Technology

[0002] Vertical machining centers are controlled by a CNC system, which translates computer-generated machining instructions into specific machining operation control instructions. A motor drives the cutting tool to rotate at high speed via the spindle, while the raw material is fixed on the worktable. The control circuit manages the tool's machining trajectory in three-dimensional space, completing various machining operations such as cutting, drilling, and milling.

[0003] According to Chinese Patent Document CN217167625U, a tool changing device for a CNC machining center relates to the field of CNC machining center technology. It includes a base plate, a connecting plate, a controller, a first telescopic member, a connecting sleeve, a fixing mechanism, a connecting block, a power mechanism, a placement tray, and a limiting mechanism. The fixing mechanism secures the connecting block, and the limiting mechanism secures the other connecting blocks. When a tool change is needed, the first telescopic member moves the connecting sleeve, which in turn moves the connecting block to the same height as the placement tray. The power mechanism moves the placement tray, the limiting mechanism secures the connecting block, the controller releases the fixing mechanism from the connecting block, and the controller controls the power mechanism to move so that the other connecting blocks are below the connecting sleeve. The controller then controls the fixing mechanism to secure the connecting block, thus achieving tool changing. This solves the problem of unstable tool head fixation and tool falling during use in existing tool changing devices.

[0004] However, the above-mentioned device requires two separate steps for tool removal and installation: first, the tool is removed and placed on the placement tray, and then the new tool on the placement tray is installed onto the connecting sleeve. This results in lower tool change efficiency. Therefore, a quick-change tool device for vertical machining centers is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a tool changer for a vertical machining center to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool quick-change device for a vertical machining center, comprising a tool magazine housing and a machine tool spindle. A rotary table is disposed in a groove at the bottom of the tool magazine housing. The rotary table is rotatably connected to the tool magazine housing via a rotating shaft. A drive mechanism acting on the rotary table is disposed on the tool magazine housing. Multiple mounting slots are formed at the bottom of the rotary table in a circular array. A mounting seat is disposed in each of the multiple mounting slots. Different tool bodies are disposed at the bottom of each of the multiple mounting seats. The interior of the mounting slots... The machine tool spindle is provided with a first fixing mechanism acting on the mounting base. Another mounting slot is provided at the bottom of the spindle. A second fixing mechanism acting on the mounting base is provided in the other mounting slot. The second fixing mechanism has the same structure as the first fixing mechanism. A mounting plate is fixedly installed on the side wall of the tool magazine housing. A tool changing plate is provided at the bottom of the mounting plate. The tool changing plate moves relative to the mounting plate through an adjustment mechanism. Storage slots are provided at both ends of the tool changing plate. The opening directions of the two storage slots are opposite. A clamping mechanism acting on the mounting base is provided in the storage slot.

[0007] As a further preferred embodiment of this technical solution, the first fixing mechanism consists of a first electric telescopic pressure rod and a limiting block. The limiting block is fixedly installed on the top wall of the mounting groove, and a limiting groove is opened at the top of the mounting base. The limiting block and the limiting groove are mutually adapted. Two first electric telescopic pressure rods are provided on the inner wall of the mounting groove. The two first electric telescopic pressure rods are symmetrically distributed. A ring-shaped slot is opened on the outer wall of the mounting base.

[0008] As a further preferred embodiment of this technical solution, the fixed end of the first electric telescopic pressure rod is fixedly embedded in the inner wall of the mounting groove, and the telescopic end of the first electric telescopic pressure rod is slidably connected to the rotary table.

[0009] As a further preferred embodiment of this technical solution, the adjusting mechanism consists of a cylinder and a first motor. The cylinder passes through the mounting plate and is fixedly connected to the mounting plate. The end of the telescopic rod of the cylinder is fixedly connected to the first motor, and the middle part of the blade changing plate is fixedly connected to the output shaft of the first motor.

[0010] As a further preferred embodiment of this technical solution, the clamping mechanism includes a second electric telescopic pressure rod. The two storage slots are respectively provided with second electric telescopic pressure rods on their inner walls that are close to each other. The fixed end of the second electric telescopic pressure rod is fixedly embedded in the inside of the tool changing plate, and the movable end of the second electric telescopic pressure rod is slidably connected to the tool changing plate. A clamping groove is provided on the outer wall of the mounting base, and the clamping groove is adapted to the movable end of the second electric telescopic pressure rod.

[0011] As a further preferred embodiment of this technical solution, three connecting plates are fixedly connected to the top side wall of the tool magazine housing, and the three connecting plates are arranged in a ring array.

[0012] As a further preferred embodiment of this technical solution, the drive mechanism includes a second motor, which is fixedly mounted on the top of the tool magazine housing, and the output shaft of the second motor is fixedly connected to the rotary table.

[0013] This utility model provides a quick-change tool device for a vertical machining center, which has the following advantages:

[0014] This utility model, through the provision of a first fixing mechanism, a second fixing mechanism, a tool changing plate, an adjustment mechanism acting on the tool changing plate, and a clamping mechanism on the tool changing plate, enables the simultaneous disassembly and installation of tools, making it highly efficient and convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the overall structure of this utility model;

[0018] Figure 4 In this utility model Figure 3 A diagram illustrating the breakdown;

[0019] Figure 5 This is a schematic diagram of the mounting base in this utility model;

[0020] In the diagram: 1. Tool magazine housing; 2. Machine tool spindle; 3. Mounting plate; 4. Cylinder; 5. First motor; 6. Tool changer plate; 7. Second motor; 8. Connecting plate; 9. Rotary table; 10. Mounting slot; 11. First electric telescopic pressure rod; 12. Limiting block; 13. Mounting base; 14. Tool body; 15. Slot; 16. Limiting slot; 17. Clamping slot; 18. Second electric telescopic pressure rod; 19. Storage slot. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 5As shown, in this embodiment, a tool quick-change device for a vertical machining center includes a tool magazine housing 1 and a machine tool spindle 2. A rotary table 9 is disposed in a groove at the bottom of the tool magazine housing 1. The rotary table 9 is rotatably connected to the tool magazine housing 1 via a rotating shaft. A drive mechanism acting on the rotary table 9 is disposed on the tool magazine housing 1. Multiple mounting slots 10 are formed in a circular array at the bottom of the rotary table 9. Mounting seats 13 are disposed in each of the multiple mounting slots 10. Different tool bodies 14 are disposed at the bottom of the multiple mounting seats 13. A drive mechanism acting on the rotary table 9 is disposed inside the mounting slots 10. The first fixing mechanism of the mounting base 13 has another mounting groove 10 at the bottom of the machine tool spindle 2. The second fixing mechanism acting on the mounting base 13 is provided in the other mounting groove 10. The second fixing mechanism has the same structure as the first fixing mechanism. The mounting plate 3 is fixedly installed on the side wall of the tool magazine housing 1. The tool changing plate 6 is provided at the bottom of the mounting plate 3. The tool changing plate 6 moves relative to the mounting plate 3 through the adjustment mechanism. The tool changing plate 6 has storage grooves 19 at both ends. The opening directions of the two storage grooves 19 are opposite. The clamping mechanism acting on the mounting base 13 is provided in the storage grooves 19.

[0023] The first fixing mechanism consists of a first electric telescopic pressure rod 11 and a limiting block 12. The limiting block 12 is fixedly installed on the top wall of the mounting groove 10. The top of the mounting base 13 has a limiting groove 16. The limiting block 12 and the limiting groove 16 are mutually compatible. Two first electric telescopic pressure rods 11 are provided on the inner wall of the mounting groove 10. The two first electric telescopic pressure rods 11 are symmetrically distributed. The outer wall of the mounting base 13 has a ring-shaped slot 15.

[0024] The fixed end of the first electric telescopic pressure rod 11 is fixedly embedded in the inner wall of the mounting groove 10, and the telescopic end of the first electric telescopic pressure rod 11 is slidably connected to the rotary table 9.

[0025] In use, after the mounting base 13 is inserted into the mounting groove 10, the movable ends of the two first electric telescopic pressure rods 11 are controlled to move closer to each other. The movable ends of the two first electric telescopic pressure rods 11 will be clamped in the slot 15 of the annular structure, thereby fixing the mounting base 13 in the mounting groove 10. The limiting block 12 will be inserted into the limiting groove 16 of the mounting base 13 to prevent the mounting base 13 from rotating in the mounting groove 10.

[0026] The adjustment mechanism consists of a cylinder 4 and a first motor 5. The cylinder 4 passes through the mounting plate 3 and is fixedly connected to the mounting plate 3. The end of the telescopic rod of the cylinder 4 is fixedly connected to the first motor 5. The middle part of the blade changing plate 6 is fixedly connected to the output shaft of the first motor 5.

[0027] In use, the blade changer 6 can be moved up and down by controlling the extension and retraction length of the cylinder 4 telescopic rod, and the blade changer 6 can be rotated by the first motor 5.

[0028] The clamping mechanism includes a second electric telescopic pressure rod 18. The two storage slots 19 are respectively provided with the second electric telescopic pressure rod 18 on their inner walls that are close to each other. The fixed end of the second electric telescopic pressure rod 18 is fixedly embedded in the inside of the blade changing plate 6. The movable end of the second electric telescopic pressure rod 18 is slidably connected to the blade changing plate 6. The outer wall of the mounting base 13 is provided with a clamping groove 17, which is adapted to the movable end of the second electric telescopic pressure rod 18.

[0029] Among them, three connecting plates 8 are fixedly connected to the top side wall of the tool magazine housing 1, and the three connecting plates 8 are arranged in a ring array.

[0030] The tool magazine housing 1 can be fixed to the housing of the vertical machining center by means of the connecting plate 8.

[0031] The drive mechanism includes a second motor 7, which is fixedly installed on the top of the tool magazine housing 1, and the output shaft of the second motor 7 is fixedly connected to the rotary table 9.

[0032] The rotation of the rotary table 9 can be controlled by the second motor 7.

[0033] This utility model provides a quick-change tool device for a vertical machining center, the specific working principle of which is as follows:

[0034] In use, the tool magazine housing 1 can be fixed to the housing of the vertical machining center through the connecting plate 8. The machine tool spindle 2 is integrated with the drive module of the vertical machining center. The drive module of the vertical machining center can control the horizontal and vertical movement and rotation of the machine tool spindle 2, thereby controlling the horizontal and vertical movement and rotation of the tool body 14 installed on the machine tool spindle 2. This is the basic function of the vertical machining center, which will not be described in detail here and is not shown in the figure. Through the control program of the vertical machining center, the extension and retraction length of the cylinder 4 telescopic rod can be controlled, thereby controlling the up and down movement of the tool changer 6. Through the control program of the vertical machining center, the first motor 5 can be controlled to drive the tool changer 6 to rotate.

[0035] Initially, multiple mounting bases 13 are fixed in multiple mounting slots 10 on the rotary table 9 by the first fixing mechanism, and one mounting base 13 is fixed on the machine tool spindle 2 by the second fixing mechanism;

[0036] The working principle of the first fixing mechanism is as follows: when the mounting base 13 is inserted into the mounting groove 10, the movable ends of the two first electric telescopic pressure rods 11 are controlled to move closer to each other. The movable ends of the two first electric telescopic pressure rods 11 will be clamped in the slot 15 of the annular structure, thereby fixing the mounting base 13 in the mounting groove 10. The limiting block 12 will be inserted into the limiting groove 16 of the mounting base 13 to prevent the mounting base 13 from rotating in the mounting groove 10.

[0037] When it is necessary to change the tool on the machine tool spindle 2, the second motor 7 drives the rotary table 9 to rotate, so that the tool to be replaced is moved to a position close to the tool changer 6. (See reference...) Figure 3 The machine tool spindle 2 is moved to the vertical machining center by controlling the control program. Figure 3 At the indicated position, the cutting tool on the machine tool spindle 2 and one cutting tool on the rotary table 9 are symmetrically distributed on both sides of the tool changer 6, and are at the same height. The tool changer 6 is rotated 90 degrees counterclockwise by the first motor 5, causing the mounting base 13 on the machine tool spindle 2 and one mounting base 13 on the rotary table 9 to respectively embed into the two storage slots 19 on the tool changer 6. At this time, the movable end of the second electric telescopic pressure rod 18 is extended by the control program of the vertical machining center, inserting it into the clamping slot 17 of the mounting base 13, thus fixing the mounting base 13 in the storage slot 19. Then, the movable end of the first electric telescopic pressure rod 11 is retracted by the control program of the vertical machining center, releasing the fixing between the mounting base 13 and the mounting slot 10. The telescopic rod of the cylinder 4 is then extended, causing the tool changer 6 to move two... Mounting base 13 is pulled out of mounting slot 10. Then, the first motor 5 controls the tool changer 6 to rotate 180 degrees clockwise, thereby swapping the positions of the two mounting bases 13. Next, the telescopic rod of the cylinder 4 is controlled to retract, so that the two mounting bases 13 can be installed onto the rotary table 9 and the machine tool spindle 2 respectively. At this time, the movable end of the first electric telescopic pressure rod 11 is extended by controlling the control program of the vertical machining center, so that the mounting base 13 can be fixed in the mounting slot 10. Then, the movable end of the second electric telescopic pressure rod 18 is retracted by controlling the control program of the vertical machining center, releasing the fixation between the mounting base 13 and the storage slot 19. Finally, the tool changer 6 is controlled to rotate 90 degrees clockwise, so that the tool changer 6 can be reset, thereby completing the tool replacement. The control program of the vertical machining center can be written and then downloaded into the PLC, which will not be described in detail here.

[0038] It should be noted that when installing the mounting base 13 for the first time, the clamping groove 17 of the mounting base 13 should be oriented towards the outside of the tool magazine housing 1 to ensure that the second electric telescopic pressure rod 18 on the tool changing plate 6 can be aligned with the clamping groove 17.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool quick-change device for a vertical machining center, comprising a tool magazine housing (1) and a machine tool spindle (2), characterized in that: A rotary table (9) is provided in the bottom groove of the tool magazine housing (1). The rotary table (9) is rotatably connected to the tool magazine housing (1) via a rotating shaft. A drive mechanism acting on the rotary table (9) is provided on the tool magazine housing (1). Multiple mounting slots (10) are provided at the bottom of the rotary table (9). The multiple mounting slots (10) are arranged in a circular array. Mounting seats (13) are provided in each of the multiple mounting slots (10). Different tool bodies (14) are provided at the bottom of each of the multiple mounting seats (13). A first fixing mechanism acting on the mounting seat (13) is provided inside the mounting slot (10). The machine tool spindle ( 2) Another mounting slot (10) is provided at the bottom. A second fixing mechanism acting on the mounting base (13) is provided in the other mounting slot (10). The second fixing mechanism has the same structure as the first fixing mechanism. A mounting plate (3) is fixedly installed on the side wall of the tool magazine housing (1). A tool changing plate (6) is provided at the bottom of the mounting plate (3). The tool changing plate (6) moves relative to the mounting plate (3) through an adjustment mechanism. Storage slots (19) are provided at both ends of the tool changing plate (6). The opening directions of the two storage slots (19) are opposite. A clamping mechanism acting on the mounting base (13) is provided in the storage slot (19).

2. The tool changer for a vertical machining center according to claim 1, characterized in that: The first fixing mechanism consists of a first electric telescopic pressure rod (11) and a limiting block (12). The limiting block (12) is fixedly installed on the top wall of the mounting groove (10). The top of the mounting base (13) has a limiting groove (16). The limiting block (12) and the limiting groove (16) are adapted to each other. Two first electric telescopic pressure rods (11) are provided on the inner wall of the mounting groove (10). The two first electric telescopic pressure rods (11) are symmetrically distributed. The outer wall of the mounting base (13) has a ring-shaped slot (15).

3. The tool changer for a vertical machining center according to claim 2, characterized in that: The fixed end of the first electric telescopic pressure rod (11) is fixedly embedded in the inner wall of the mounting groove (10), and the telescopic end of the first electric telescopic pressure rod (11) is slidably connected to the rotating table (9).

4. The tool changer for a vertical machining center according to claim 1, characterized in that: The adjustment mechanism consists of a cylinder (4) and a first motor (5). The cylinder (4) passes through the mounting plate (3) and is fixedly connected to the mounting plate (3). The end of the telescopic rod of the cylinder (4) is fixedly connected to the first motor (5). The middle part of the blade changing plate (6) is fixedly connected to the output shaft of the first motor (5).

5. A tool changer for a vertical machining center according to claim 1, characterized in that: The clamping mechanism includes a second electric telescopic pressure rod (18). The two storage slots (19) are respectively provided with the second electric telescopic pressure rod (18) on their inner walls that are close to each other. The fixed end of the second electric telescopic pressure rod (18) is fixedly embedded in the inside of the blade changing plate (6). The movable end of the second electric telescopic pressure rod (18) is slidably connected to the blade changing plate (6). The outer wall of the mounting base (13) is provided with a clamping groove (17). The clamping groove (17) is adapted to the movable end of the second electric telescopic pressure rod (18).

6. The tool changer for a vertical machining center according to claim 1, characterized in that: Three connecting plates (8) are fixedly connected to the top side wall of the tool magazine housing (1), and the three connecting plates (8) are arranged in a ring array.

7. A tool changer for a vertical machining center according to claim 1, characterized in that: The drive mechanism includes a second motor (7), which is fixedly installed on the top of the tool magazine housing (1), and the output shaft of the second motor (7) is fixedly connected to the rotary table (9).

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