Tool changing device of five-axis machining center

Abstract

The utility model belongs to the technical field of tool changing devices, and relates to a tool changing device of a five-axis machining center, which comprises a tool changing box, a plurality of mounting grooves are uniformly formed in the side surface of the tool changing box, a tool is arranged in each mounting groove in a sliding manner, and shaft rods rotationally penetrate through the side surfaces of the tops and the bottoms of the mounting grooves; the ends, extending into the mounting grooves, of the shaft rods are fixedly connected with connecting plates, the ends, away from the shaft rods, of the connecting plates are fixedly connected with connecting rods, the connecting rods are rotationally sleeved with cleaning rollers, the cutter is located between the two cleaning rollers, the cleaning rollers abut against the cutter and are in sliding fit with the cutter, two transmission assemblies are arranged on the cutter, and the transmission assemblies correspond to the shaft rods one to one. When the cutters move, the transmission assemblies drive the corresponding shaft rods to rotate. The tool changing box has the advantages that after the tool moves into the tool changing box, the cleaning roller rotates away from the tool, so that the tool does not make contact with the tool when the tool moves out of the tool changing box, and the situation that the tool adheres to chippings is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tool changing device technical field, and relates to a tool changing device of five -axis machining center. BACKGROUND

[0002] Five -axis machining center is a kind of machining equipment that can be linked on five degrees of freedom, mainly used for processing complex surface and complex parts. It realizes the processing of space arbitrary angle by the linkage of tool or workpiece on five degrees of freedom, and is especially suitable for processing aerospace parts, complex mould and special-shaped surface etc. Because different tools need to be used in different workpieces and different processing stages in the processing process, tool changing device needs to be used.

[0003] The automatic tool changing structure of vertical machining center disclosed in Chinese patent CN217619298U is provided with a cleaning mechanism on the tool, and the cleaning mechanism includes two straight rods, two rotating rollers, two annular sponge cleaning plates, four link plates and four force springs. The annular sponge cleaning plate is tightly attached to the tool by the force spring, and then the debris adhered to the tool is cleaned.

[0004] The tool changing device makes the annular sponge cleaning plate clean the tool, and after cleaning, the debris will stick to the annular sponge cleaning plate. When the tool is extended, it will contact the annular sponge cleaning plate again, so that the debris is easy to fall on the tool, affecting the use of the tool.

[0005] To solve the above problems, the utility model provides a tool changing device of five -axis machining center. UTILITY MODEL CONTENTS

[0006] To solve the problems in the background art, the utility model provides a tool changing device of five -axis machining center.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: including tool changing box, the side of tool changing box is evenly provided with a plurality of installation grooves, each installation groove is slidably provided with a tool, the tool changing box is provided with a driving assembly, and the driving assembly drives the tool to slide in horizontal direction in turn;

[0008] The side of the top and bottom of the installation groove is rotatably penetrated by a shaft, one end of the shaft extending into the installation groove is fixedly connected with a connecting plate, the end of the connecting plate away from the shaft is fixedly connected with a connecting rod, a cleaning roller is rotatably sleeved on the connecting rod, the tool is located between the two cleaning rollers, and the cleaning roller and the tool abut and slide with each other.

[0009] The tool is provided with two transmission assemblies, and the transmission assemblies correspond to the shafts one by one. When the tool moves, the transmission assembly drives the corresponding shaft to rotate.

[0010] Further, the top of the mounting groove is provided with an upper collecting box through a first fastening screw, the upper collecting box is provided with an opening near the upper cleaning roller, and the bottom end of the opening of the upper collecting box is in sliding fit with the upper cleaning roller.

[0011] The bottom of the mounting groove is provided with a lower collecting box through a second fastening screw, the lower collecting box is provided with an opening near the lower cleaning roller, and the top end of the opening of the lower collecting box is in sliding fit with the lower cleaning roller.

[0012] Further, the driving assembly comprises a cam, the bottom of the tool changing box is fixedly provided with a motor, the cam is fixedly connected to the top end of the output shaft of the motor, and the protruding end of the cam is in abutting fit with the end of the tool.

[0013] Further, the bottom end of the mounting groove is provided with a first sliding groove, one end of the tool inserted into the tool changing box is fixedly provided with a sliding block, and the sliding block is in sliding connection with the inside of the first sliding groove.

[0014] The inside of the first sliding groove is fixedly provided with a first guide rod, and the sliding block is slidingly sleeved on the first guide rod.

[0015] Further, the transmission assembly comprises an elastic rope, one side of the sliding block is provided with an extension piece.

[0016] The top end and the bottom end of the mounting groove are provided with second sliding grooves, the inside of the two second sliding grooves is horizontally slidingly provided with movable blocks, and the two movable blocks are in abutting fit with the extension piece.

[0017] One end of the elastic rope is fixedly connected to one side of the movable block, and the other end of the elastic rope is fixedly arranged on the shaft rod.

[0018] The first guide rod is sleeved with a first spring, one end of the first spring is fixedly connected to the inner wall of the first sliding groove, and the other end of the first spring is fixedly connected to one side of the sliding block.

[0019] Further, the extension piece comprises a connecting block, the connecting block is fixedly connected to one side of the sliding block, two positioning grooves are sequentially arranged in the connecting block from top to bottom, sliding rods are slidingly and penetratively arranged in the two positioning grooves away from each other, the ends of the sliding rods extending out of the positioning grooves are fixedly connected with limiting blocks, the bottom end of the upper movable block is in abutting fit with the upper limiting block, and the top end of the lower movable block is in abutting fit with the lower limiting block.

[0020] The cross section of the limiting block is triangular, the other ends of the two sliding rods are fixedly connected with second springs, and the other ends of the second springs are fixedly connected to the inner walls of the corresponding positioning grooves.

[0021] Further, the shaft rod is coaxially fixedly connected with a wire roller at one end away from the connecting plate, and one end of the elastic rope is fixedly connected to the corresponding wire roller, and the elastic rope can be wound on the wire roller;

[0022] The shaft rod is sleeved with a torsion spring at one end close to the wire roller, one end of the torsion spring is fixedly connected with the wire roller, and the other end of the torsion spring is fixedly connected with the tool changing box.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The tool changing device of the five-axis machining center is provided with a cleaning roller, when the tool moves to the inside of the tool changing box, the transmission assembly drives the shaft rod to rotate, the shaft rod drives the cleaning roller to rotate to the surface of the tool through the connecting plate, so that the cleaning roller cleans the tool, and after the tool moves to the inside of the tool changing box, the transmission assembly drives the shaft rod to rotate, so that the cleaning roller rotates away from the tool, so that the tool does not contact the tool when moving out of the outside of the tool changing box, thereby reducing the condition that the tool sticks to the debris, and facilitating continuous use of the tool.

[0025] 2. The tool changing device of the five-axis machining center is provided with an upper collecting box and a lower collecting box, when the cleaning roller moves to the surface of the tool to clean the tool, the upper cleaning roller rotates at the opening of the upper collecting box, and the lower cleaning roller rotates at the opening of the lower collecting box, so that the opening scrapes off the debris on the cleaning roller, collects the debris, and reduces the condition that the debris falls off. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0027] Figure 2 It is a structure schematic view of the tool changing box in the utility model;

[0028] Figure 3 It is a structure schematic view of the cam in the utility model;

[0029] Figure 4 It is a structure schematic view of the inside of the mounting groove in the utility model;

[0030] Figure 5 It is a structure schematic view of the cleaning roller in the utility model;

[0031] Figure 6 It is a structure schematic view of the connecting block in the utility model.

[0032] In the diagram: 1. Tool changer box; 2. Tool; 3. Mounting slot; 4. Upper collection box; 5. First fastening screw; 6. Cleaning roller; 7. Connecting plate; 8. Elastic rope; 9. Wire roller; 10. Connecting rod; 11. Cam; 12. Shaft; 13. Second spring; 14. Connecting block; 15. Second fastening screw; 16. Lower collection box; 17. Movable block; 18. Second slide groove; 19. First slide groove; 20. First guide rod; 21. Slider; 22. First spring; 23. Second guide rod; 24. Limiting block. Detailed Implementation

[0033] 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.

[0034] like Figures 1-6 As shown, the technical solution adopted by this utility model is as follows: a tool changing device for a five-axis machining center, including a tool changing box 1, and a plurality of mounting slots 3 are evenly opened on the side of the tool changing box 1, and a tool 2 is slidably arranged in each mounting slot 3.

[0035] The bottom end of the mounting slot 3 has a first sliding groove 19. One end of the tool 2 that extends into the tool changer box 1 is fixedly connected to a slider 21, which is slidably connected inside the first sliding groove 19. The movement of the tool 2 is positioned by the slider 21 sliding within the first sliding groove 19.

[0036] A first guide rod 20 is fixedly connected inside the first groove 19, and the slider 21 is slidably sleeved on the first guide rod 20. The first guide rod 20 positions the slider 21 within the first groove 19, further increasing the stability of the tool 2's movement.

[0037] The tool changer box 1 is equipped with a drive assembly, which sequentially drives the tool 2 to slide in the horizontal direction.

[0038] The drive assembly includes a cam 11. A motor is fixedly mounted at the bottom of the tool changer 1, and the cam 11 is fixedly connected to the top of the motor's output shaft. The cam 11 is rotatably disposed inside the tool changer 1, and the motor drives the cam 11 to rotate. The protruding end of the cam 11 abuts against the end of the tool 2. When the protruding end of the cam 11 rotates to the end of the tool 2, the protruding end of the cam 11 pushes the tool 2 to move.

[0039] The shaft rod 12 is rotatably arranged on the side of the top and bottom of the installation groove 3, and the end of the shaft rod 12 extending into the installation groove 3 is fixedly connected with the connecting plate 7. The rotation of the shaft rod 12 drives the rotation of the connecting plate 7. The end of the connecting plate 7 away from the shaft rod 12 is fixedly connected with the connecting rod 10, and the cleaning roller 6 is rotatably arranged on the connecting rod 10. The cutter 2 is located between the two cleaning rollers 6, and the cleaning roller 6 is in abutting and sliding fit with the cutter 2. The surface of the cleaning roller 6 is covered with a layer of cleaning cloth, so that the surface of the cutter 2 is cleaned by the cleaning roller 6. When used for a long time, the cleaning cloth can be disassembled and replaced.

[0040] Two transmission assemblies are arranged on the cutter 2, and the transmission assemblies correspond to the shaft rods 12 one by one. When the cutter 2 moves, the transmission assembly drives the corresponding shaft rod 12 to rotate.

[0041] The transmission assembly comprises an elastic rope 8. One side of the sliding block 21 is provided with an extension piece.

[0042] The top end and the bottom end of the installation groove 3 are provided with second sliding grooves 18, and the interiors of the two second sliding grooves 18 are horizontally and slidably connected with movable blocks 17. The two movable blocks 17 are in abutting fit with the extension piece.

[0043] The interior of the second sliding groove 18 is fixedly connected with a second guide rod 23, and the second guide rod 23 is parallel to the first guide rod 20. The movable block 17 is slidably arranged on the second guide rod 23. The movable block 17 is positioned in the second sliding groove 18 by the second guide rod 23.

[0044] The extension piece comprises a connecting block 14, and the connecting block 14 is fixedly connected to one side of the sliding block 21. The interior of the connecting block 14 is sequentially provided with two positioning grooves from top to bottom, and the two positioning grooves correspond in the vertical direction. The ends of the two positioning grooves away from each other are slidably penetrated with slide rods, and the ends of the slide rods extending out of the positioning grooves are fixedly connected with limiting blocks 24. The upper limiting block 24 is in abutting fit with the bottom end of the upper movable block 17, and the lower limiting block 24 is in abutting fit with the top end of the lower movable block 17. The connecting block 14 drives the movable block 17 to move through the two limiting blocks 24.

[0045] The cross section of the limiting block 24 is triangular, so that the limiting block 24 is in fit with the movable block 17 through the inclined surface. The other ends of the two slide rods are fixedly connected with second springs 13, and the other ends of the second springs 13 are fixedly connected to the inner walls of the corresponding positioning grooves. In the initial state, the second spring 13 drives the slide rod, so that the distance between the limiting block 24 and the connecting block 14 is maximum.

[0046] One end of the elastic rope 8 is fixedly connected to one side of the movable block 17, and the other end of the elastic rope 8 is fixedly arranged on the shaft rod 12.

[0047] The first guide rod 20 is sleeved with a first spring 22. One end of the first spring 22 is fixedly connected to the inner wall of the first sliding groove 19, and the other end of the first spring 22 is fixedly connected to one side of the sliding block 21. In the initial state, the first spring 22 pushes the sliding block 21 to move towards the middle part of the tool changer 1, so that the tool 2 moves into the installation slot 3.

[0048] The shaft rod 12 is coaxially fixedly connected with a wire roller 9 at the end away from the connecting plate 7. One end of the elastic rope 8 is fixedly connected to the corresponding wire roller 9, and the elastic rope 8 can be wound on the wire roller 9.

[0049] The end of the shaft rod 12 close to the wire roller 9 is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with the wire roller 9, and the other end of the torsion spring is fixedly connected with the tool changer 1. When the torsion spring is in the initial state, it drives the connecting plate 7 to rotate to the inclined state, so that the two cleaning rollers 6 are not in contact with the tool 2.

[0050] The top of the installation slot 3 is provided with an upper collecting box 4 through the first fastening screw 5. The upper collecting box 4 is provided with an opening close to the upper cleaning roller 6, and the bottom end of the opening of the upper collecting box 4 is in sliding fit with the upper cleaning roller 6. So that the upper cleaning roller 6 rotates at the opening of the upper collecting box 4, so that the debris on the upper cleaning roller 6 falls into the upper collecting box 4.

[0051] The bottom of the installation slot 3 is provided with a lower collecting box 16 through the second fastening screw 15. The lower collecting box 16 is provided with an opening close to the lower cleaning roller 6, and the top end of the opening of the lower collecting box 16 is in sliding fit with the lower cleaning roller 6. So that the lower cleaning roller 6 rotates at the opening of the lower collecting box 16, so that the debris on the lower cleaning roller 6 falls into the lower collecting box 16.

[0052] Working principle:

[0053] Fix the tool changer 1 on the five-axis machining center. In the initial state, the torsion spring drives the connecting plate 7 to rotate to the inclined state, so that the two cleaning rollers 6 are not in contact with the tool 2. And the upper cleaning roller 6 is not in contact with the upper collecting box 4, and the lower cleaning roller 6 is not in contact with the lower collecting box 16. One end of the elastic rope 8 is wound on the wire roller 9, and one end of the elastic rope 8 pulls the movable block 17, so that the movable block 17 is located at the end away from the middle part of the tool changer 1 in the second sliding groove 18. The limiting block 24 is located at the side close to the middle part of the tool changer 1 of the movable block 17.

[0054] Start the motor, and the output shaft of the motor drives the cam 11 to rotate. The protruding end of the cam 11 rotates to the side of the tool 2 to be replaced, and the protruding end of the cam 11 pushes the tool 2 to move in the installation slot 3 to the outside of the tool changer 1.

[0055] The tool 2 will drive the slider 21 to slide in the first sliding groove 19, and the slider 21 will slide on the first guide rod 20 and compress the first spring 22.

[0056] The slider 21 will drive the connecting block 14 to move, and the limiting block 24 will move to the movable block 17 and press the movable block 17. Since the movable block 17 is located at the end of the second sliding groove 18, the movable block 17 cannot move, so the movable block 17 will press the limiting block 24. The limiting block 24 will move to the side close to the connecting block 14 and compress the second spring 13.

[0057] When the limiting block 24 moves to the side of the movable block 17 away from the middle of the tool changer 1, the second spring 13 will push the limiting block 24 away from the connecting block 14.

[0058] Until the end of the tool 2 is moved out of the installation slot 3, the tool 2 is used.

[0059] When the tool needs to be changed, the end of the cam 11 is turned away from the abutting tool 2. At this time, the tool 2 is no longer pressed, and the first spring 22 will push the slider 21 to slide towards the middle of the tool changer 1, and the slider 21 will drive the tool 2 to move towards the inside of the tool changer 1.

[0060] The slider 21 will drive the connecting block 14 and the limiting block 24 to move, and the limiting block 24 will push the movable block 17, so that the movable block 17 will slide on the second guide rod 23. And the movable block 17 will move in the second sliding groove 18 towards the middle of the tool changer 1.

[0061] The movable block 17 will pull one end of the elastic rope 8, the elastic rope 8 will be stretched, and the other end of the elastic rope 8 will turn away from the wire roller 9. The wire roller 9 will be driven to rotate, and the shaft rod 12, the connecting plate 7, the connecting rod 10, and the cleaning roller 6 will rotate towards the outer surface of the tool 2. At the same time, the torsional spring on the shaft rod 12 will be twisted.

[0062] Until the upper cleaning roller 6 rotates to the upper surface of the tool 2, and the upper cleaning roller 6 is located at the opening of the upper collecting box 4. The lower cleaning roller 6 rotates to the lower surface of the tool 2, and the lower cleaning roller 6 is located at the opening of the lower collecting box 16.

[0063] When the cleaning roller 6 contacts the tool 2, there is no elastic rope 8 wound on the wire roller 9. The movement of the movable block 17 will stretch the elastic rope 8, and the torsional spring will be twisted to the maximum state, so that the shaft rod 12 and the connecting plate 7 will no longer rotate.

[0064] Moving the tool 2 between the two cleaning rollers 6 will drive the two cleaning rollers 6 to rotate. The cleaning roller 6 will remove the debris stuck on the tool 2, and as the cleaning roller 6 rotates, the debris on the cleaning roller 6 will fall into the corresponding upper collecting box 4 or lower collecting box 16 through the opening.

[0065] After the limiting block 24 pushes the movable block 17 to move to the second sliding groove 18, the movable block 17 is close to one end of the middle part of the tool magazine 1. The movable block 17 will extrude the limiting block 24, so that the limiting block 24 slides at the end of the movable block 17 and compresses the second spring 13. When the limiting block 24 leaves the end of the movable block 17, the movable block 17 no longer extrudes the limiting block 24, at this time the second spring 13 will push the limiting block 24 away from the connecting block 14. The tool 2 is completely moved into the tool magazine 1.

[0066] Since the limiting block 24 no longer limits the movable block 17, the elastic rope 8 is no longer stretched. The elastic rope 8 will return to its original state, thereby pulling the movable block 17 to slide in the second sliding groove 18. And under the action of the torsion spring, the shaft rod 12 rotates, the connecting plate 7 rotates, the cleaning roller 6 leaves the tool 2. At the same time, the shaft rod 12 drives the wire roller 9 to rotate, and the elastic rope 8 is rotated onto the wire roller 9 again.

[0067] By rotating the first fastening screw 5, the upper collecting box 4 can be disassembled and cleaned. By rotating the second fastening screw 15, the lower collecting box 16 can be disassembled and cleaned.

[0068] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tool changer of a five-axis machining center, characterized by, Including the tool changer (1), the side of the tool changer (1) is uniformly provided with a plurality of installation grooves (3), each installation groove (3) is slidably provided with a tool (2), the tool changer (1) is provided with a driving assembly, and the driving assembly drives the tool (2) to slide in the horizontal direction in turn; The side of the top and bottom of the installation groove (3) is rotatably penetrated by a shaft (12), one end of the shaft (12) extending into the installation groove (3) is fixedly connected with a connecting plate (7), the end of the connecting plate (7) away from the shaft (12) is fixedly connected with a connecting rod (10), the connecting rod (10) is rotatably sleeved with a cleaning roller (6), the tool (2) is located between the two cleaning rollers (6), and the cleaning roller (6) is in abutment and sliding fit with the tool (2); The tool (2) is provided with two transmission assemblies, the transmission assemblies correspond to the shafts (12) one by one, and the transmission assemblies drive the corresponding shafts (12) to rotate when the tool (2) moves.

2. The tool changer of a five-axis machining center according to claim 1, characterized in that: The top of the installation groove (3) is provided with an upper collecting box (4) by a first fastening screw (5), the upper collecting box (4) is provided with an opening near one cleaning roller (6) above, and the bottom end of the opening of the upper collecting box (4) is in sliding fit with one cleaning roller (6) above. The bottom of the installation groove (3) is provided with a lower collecting box (16) by a second fastening screw (15), the lower collecting box (16) is provided with an opening near one cleaning roller (6) below, and the top end of the opening of the lower collecting box (16) is in sliding fit with one cleaning roller (6) below.

3. The tool changer of a five-axis machining center according to claim 1, characterized in that: The driving assembly comprises a cam (11), a motor is fixedly installed at the bottom of the tool changer (1), the cam (11) is fixedly connected to the top end of the output shaft of the motor, and the protruding end of the cam (11) is in abutment fit with the end of the tool (2).

4. The tool changer of a five-axis machining center according to claim 1, characterized in that: The bottom end of the installation groove (3) is provided with a first sliding groove (19), one end of the tool (2) extending into the tool changer (1) is fixedly connected with a sliding block (21), and the sliding block (21) is slidably connected to the inside of the first sliding groove (19). The inside of the first sliding groove (19) is fixedly connected with a first guide rod (20), and the sliding block (21) is slidably sleeved on the first guide rod (20).

5. The tool changer of a five-axis machining center according to claim 4, characterized in that: The transmission assembly comprises an elastic rope (8), one side of the sliding block (21) is provided with a telescopic piece; The top end and the bottom end of the installation groove (3) are provided with a second sliding groove (18), the inside of the two second sliding grooves (18) is slidably connected with a movable block (17), and the two movable blocks (17) are in abutment fit with the telescopic piece; One end of the elastic rope (8) is fixedly connected to one side of the movable block (17), and the other end of the elastic rope (8) is fixedly arranged on the shaft (12); A first spring (22) is sleeved on the first guide rod (20), one end of the first spring (22) is fixedly connected to the inner wall of the first sliding groove (19), and the other end of the first spring (22) is fixedly connected to one side of the sliding block (21).

6. A tool changer for a five-axis machining center according to claim 5, characterized in that: The telescopic piece comprises a connecting block (14) fixedly connected to one side of the sliding block (21), the inside of the connecting block (14) is sequentially provided with two positioning grooves from top to bottom, the mutually distal ends of the two positioning grooves are both slidably penetrated by a slide rod, the end of the slide rod extending out of the positioning groove is fixedly connected with a limiting block (24), the upper limiting block (24) is in abutting fit with the bottom end of the upper movable block (17), and the lower limiting block (24) is in abutting fit with the top end of the lower movable block (17). The cross section of the limiting block (24) is triangular, the other end of the two slide rods is fixedly connected with a second spring (13), and the other end of the second spring (13) is fixedly connected to the inner wall of the corresponding positioning groove.

7. The tool changer of a five-axis machining center according to claim 5, characterized in that: The end of the shaft rod (12) away from the connecting plate (7) is coaxially fixedly connected with a wire roller (9), one end of the elastic rope (8) is fixedly connected to the corresponding wire roller (9), and the elastic rope (8) can be wound on the wire roller (9); The end of the shaft rod (12) close to the wire roller (9) is sleeved with a torsional spring, one end of the torsional spring is fixedly connected with the wire roller (9), and the other end of the torsional spring is fixedly connected with the tool changing box (1).

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