Tool magazine for engraving machine

Abstract

The utility model relates to a tool magazine for an engraving machine, which comprises a mounting seat internally provided with a cavity, a rotating motor mounted in the cavity, a rotating sleeve rotationally mounted on the mounting seat, an upper partition plate and a lower partition plate fixed in the rotating sleeve, through grooves are vertically formed in the circumferential face of the rotating sleeve between the upper supporting plate and the lower supporting plate at intervals, lead screws are rotationally installed at the positions, corresponding to the through grooves, between the upper partition plate and the lower partition plate, the upper ends of the lead screws penetrate through the upper partition plate and are provided with fixed gears, and lifting motors which are the same as the through grooves in number and are arranged in a circular track are installed on the upper partition plate. An output shaft of the lifting motor is connected with a driving gear meshed with the fixed gear, each lead screw is in threaded connection with a lifting block, each lifting block is horizontally connected with a lifting rod extending out of the corresponding through groove, and a tool holder is installed at the end of each lifting rod. The tool magazine can be contained in the tool magazine groove, the overall attractiveness of equipment is improved, and meanwhile the tool changing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving equipment, in particular to a tool magazine for an engraving machine. Background Art

[0002] In order to facilitate the use in the actual processing process, the engraving machine and the tool magazine assembly are generally set on the same workbench, which is convenient for the replacement of tools of different specifications at any time. However, the tool magazine assembly is usually fixedly installed on the surface of the workbench, which will occupy a part of the space area on the surface of the machine tool, limit the movement range of the parts during processing, and affect the overall appearance of the engraving machine.

[0003] In addition, the common existing tool magazine components generally have tool clamps arranged in a straight line, and the tool clamps are fixed in position. When the tool head needs to be replaced, the tool changing spindle needs to use a multi-axis module to adjust the position so that the tool clamp can be aligned and the tool head can be replaced. It is necessary to wait for the tool changing spindle to adjust the position before the tool head can be replaced accurately. Therefore, the tool head replacement speed is slow, which affects the processing efficiency.

[0004] Therefore, we propose a tool magazine for engraving machines that is both beautiful and efficient. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a tool magazine for an engraving machine. The tool magazine can be stored in the tool magazine slot by controlling the cylinder. The tool magazine cover is flush with the work surface of the engraving machine, which not only leaves a sufficiently large processing operation space for the work surface, but also improves the overall aesthetics of the equipment. At the same time, a rotating motor is used to drive a rotating sleeve to drive the tool clamp to rotate and align the tool clamp with the tool changing spindle in advance, which facilitates the tool changing spindle to replace the tool and improves the tool changing efficiency.

[0006] The utility model is realized through the following technical solutions:

[0007] A tool magazine for an engraving machine is provided, comprising a mounting seat, a cavity is arranged in the mounting seat, and a rotating motor is installed in the cavity, a rotating sleeve is rotatably installed on the mounting seat, the lower end of the rotating sleeve extends into the cavity and is transmission-connected to the rotating motor, an upper partition and a lower partition are respectively fixed in the rotating sleeve, at least three through slots are vertically spaced apart on the circumference of the rotating sleeve between the upper partition and the lower partition, a lead screw is rotatably installed at each through slot between the upper partition and the lower partition, the upper end of the lead screw passes through the upper partition and is installed with a fixed gear, a lifting motor with the same number as the through slots and arranged in a circular trajectory is installed on the upper partition, the output shaft of the lifting motor is connected to a driving gear meshing with the fixed gear, and each lead screw is threaded The groove is connected with a lifting block, and each lifting block is horizontally connected with a lifting rod extending out of the through slot, and a tool clamp is installed at the end of each lifting rod, and the tool clamp comprises a connecting seat and two claw arms symmetrically arranged on one side of the connecting seat, the claw arm comprises a claw arm body, a limiting part connected to the claw arm body and an arc-shaped supporting part, the limiting part comprises a connecting plate and an arc-shaped limiting plate, one end of the connecting plate is connected to the arc-shaped limiting plate, and the other end is connected to the claw arm body, the inner circular surface of the arc-shaped limiting plate is convexly provided with a first arc-shaped boss, the arc-shaped supporting part comprises an arc-shaped supporting plate, the inner circular surface of the arc-shaped supporting plate is convexly fixedly connected with a second arc-shaped boss corresponding to the first arc-shaped boss, and a deformation groove is formed between the limiting part and the arc-shaped supporting part.

[0008] Furthermore, a driven gear is sleeved and installed in the cavity at the lower end of the rotating sleeve, and a driving gear meshing with the driven gear is installed on the driving shaft of the rotating motor.

[0009] The driven gear arranged at the lower end of the rotating sleeve can cooperate with the driving gear of the rotating motor to drive the rotating sleeve to rotate through the rotation of the rotating motor. The rotation angle of the rotating sleeve can be controlled, so it is convenient to adjust the alignment of the tool clamp on each lifting rod with the tool changing spindle.

[0010] Furthermore, the width of the lifting rod is the same as the width of the through slot.

[0011] The width of the lifting rod is the same as that of the through slot, and the through slot serves as a rotation limit for the lifting rod. Together with the lead screw and the lifting block, the lifting rod can achieve up and down lifting motion under the rotation of the lead screw.

[0012] Furthermore, the upper and lower ends of each lead screw are respectively sleeved with limit blocks, and each limit block is embedded with a limit switch, and the limit switches are respectively electrically connected to the lifting motors connected to the corresponding lead screws.

[0013] The limit block on the lead screw, in conjunction with the limit switch, can be used to locate the position of the lifting block. The limit switch transmits a signal to the lifting motor, and the lifting motor can be stopped after the lifting block reaches the position.

[0014] Furthermore, a tool magazine slot is provided on the workbench of the engraving machine, and the mounting seat is movably installed in the tool magazine slot through a lifting mechanism. A tool magazine cover plate flush with the workbench is provided at the edge of the tool magazine slot, and the tool magazine cover plate is connected to the top of the rotating sleeve.

[0015] By providing a tool magazine slot, the tool magazine can be stored in the tool magazine slot in cooperation with the lifting mechanism, thereby realizing the storage of the tool magazine and improving the activity range of the engraving machine.

[0016] Furthermore, the lifting mechanism includes two guide rails vertically installed on the bottom surface of the tool magazine slot, and sliders are slidably connected to the two guide rails. The two sliders are connected to the mounting seat through connecting plates respectively, and two cylinders connected to the piston rods and connecting plates are installed on the bottom surface of the tool magazine slot corresponding to the sliders.

[0017] The lifting mechanism moves up and down on the guide rail through the slider, and then uses the slider to drive the connecting plate and the upper mounting seat to perform lifting and lowering movements. The cylinder is used as a driving mechanism, and the piston rod of the cylinder can be used to drive the mounting seat to rise and fall, thereby driving the entire tool magazine to rise and fall.

[0018] Beneficial effects of the utility model:

[0019] The tool magazine assembly is installed on the lifting mechanism, and the lifting of the tool magazine is controlled by the cylinder to move out and store the tool magazine. The lifting mechanism controls the tool magazine and also drives the tool magazine cover to open and close the tool magazine. When the tool magazine is closed, the tool magazine cover is flush with the work surface, which not only leaves enough processing operation space for the work surface, but also improves the overall aesthetics of the equipment.

[0020] By designing a rotating sleeve, the rotating sleeve can be driven by a rotating motor to rotate a fixed angle, and the position of the tool clamp on the lifting rod can be adjusted in advance to facilitate tool replacement in coordination with the tool changing spindle, thereby reducing the tool changing time of the tool changing spindle and improving processing efficiency.

[0021] The tool holder of the utility model is designed so that the limit part has certain elasticity through the use of the deformation groove, and has a simple structure, is easy to process, has a good clamping effect, and is convenient for the tool changing manipulator to change the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the installation structure on the engraving machine workbench.

[0023] Figure 2 It is a schematic diagram of the connection between the rotating sleeve and the tool magazine cover plate in the utility model.

[0024] Figure 3 It is a schematic diagram of the installation of the rotating sleeve in the utility model.

[0025] Figure 4 It is a structural schematic diagram of the lifting mechanism in the utility model.

[0026] Figure 5 It is a structural schematic diagram of the knife clamp in the utility model.

[0027] As shown in the figure:

[0028] 1. Tool changing spindle, 2. Workbench, 3. Tool magazine slot, 4. Tool magazine cover, 5. Rotating sleeve, 6. Tool clamp, 61. Connecting seat, 62. Claw arm, 63. Connecting plate, 64. Arc-shaped limit plate, 65. First arc-shaped boss, 66. Arc-shaped support plate, 67. Second arc-shaped boss, 68. Deformation groove, 7. Lifting rod, 8. Through groove, 9. Lead screw, 10. Upper partition, 11. Lower partition, 12. Driving gear, 13. Lifting motor, 14. Fixed gear, 15. Limit block, 16. Lifting block, 17. Rotating motor, 18. Driving gear, 19. Driven gear, 20. Cavity, 21. Guide rail, 22. Slider, 23. Connecting plate, 24. Cylinder, 25. Mounting seat. DETAILED DESCRIPTION

[0029] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0030] A tool magazine for an engraving machine includes a mounting seat 25, a cavity 20 is provided in the mounting seat 25, and a rotating motor 17 is installed in the cavity 20, a rotating sleeve 5 is rotatably installed on the mounting seat 25, the lower end of the rotating sleeve 5 extends into the cavity and is transmission-connected to the rotating motor 17, an upper partition 10 and a lower partition 11 are respectively fixed in the rotating sleeve 5, and at least three through grooves 8 are vertically spaced between the upper partition 10 and the lower partition 11, and each through groove 8 is provided between the upper partition 10 and the lower partition 11. A lead screw 9 is rotatably installed at the through slot 8, and the upper end of the lead screw 9 passes through the upper partition 10 and is installed with a fixed gear 14. The upper partition 10 is installed with lifting motors 13, the number of which is the same as the through slots 8 and is arranged in a circular trajectory. The output shaft of the lifting motor 13 is connected to a driving gear 12 meshing with the fixed gear 14. The upper and lower ends of each lead screw 9 are respectively sleeved with limit blocks 15, and each limit block 15 is embedded with a limit switch, and the limit switches are respectively electrically connected to the lifting motors 13 connected to the corresponding lead screw 9.

[0031] A lifting block 16 is threadedly connected to each lead screw 9 , and a lifting rod 7 extending out of the through slot 8 is horizontally connected to each lifting block 16 , and the width of the lifting rod 7 is the same as that of the through slot 8 .

[0032] A tool clamp 6 is installed at the end of each lifting rod 7. The tool clamp 6 includes a connecting seat 61 and two claw arms 62 symmetrically arranged on one side of the connecting seat 61. The claw arm 62 includes a claw arm body, a limiting portion connected to the claw arm body and an arc-shaped supporting portion. The limiting portion includes a connecting plate 63 and an arc-shaped limiting plate 64. One end of the connecting plate 63 is connected to the arc-shaped limiting plate 64, and the other end is connected to the claw arm 62 body. The inner circular surface of the arc-shaped limiting plate 64 is convexly provided with a first arc-shaped boss 65. The arc-shaped supporting portion includes an arc-shaped supporting plate 66. The inner circular surface of the arc-shaped supporting plate 66 is convexly fixedly connected with a second arc-shaped boss 67 corresponding to the first arc-shaped boss 65. A deformation groove 68 is formed between the limiting portion and the arc-shaped supporting portion.

[0033] The lower end of the rotating sleeve 5 is sleeved with a driven gear 19 in the cavity 20, and the driving shaft of the rotating motor 17 is installed with a driving gear 18 meshing with the driven gear 19. The driving shaft of the rotating motor 17 drives the driving gear 18 to rotate, and the driving gear 18 drives the driven gear 19 to drive the rotating sleeve 5 to rotate. A servo motor is used according to usage needs to ensure control accuracy, so that the driven gear 19 rotates the same angle each time and keeps facing the retraction direction of the tool changing spindle 1, which is convenient for quick tool changing.

[0034] In order to increase the working area of ​​the workbench 2 and improve the overall aesthetics of the engraving machine, a tool magazine slot 3 is opened on the workbench 2 of the engraving machine. The mounting seat 25 is movably installed in the tool magazine slot 3 through a lifting mechanism. The edge of the tool magazine slot 3 is provided with a tool magazine cover plate 4 flush with the workbench 2. The tool magazine cover plate 4 is connected to the top of the rotating sleeve 5.

[0035] The lifting mechanism includes two guide rails 21 vertically installed on the bottom surface of the tool magazine slot 3, and sliders 22 are slidably connected to the two guide rails 21. The two sliders 22 are connected to the mounting seat 25 through connecting plates 23 respectively. Two cylinders 24 connected with piston rods and connecting plates 23 are installed on the bottom surface of the tool magazine slot 3 respectively corresponding to the sliders 22.

[0036] The working process of this utility model:

[0037] When the tool does not need to be replaced, the piston rod of the cylinder 24 is retracted, and the slider 22 and its external connecting plate 23 are pulled downward to move downward together. The slider 22 moves vertically downward along the guide rail 21, and the connecting plate 23 drives the upper tool magazine to move downward as a whole and enter the tool magazine slot 3. At the same time, the tool magazine cover plate 4 is sealed on the tool magazine slot 3 as the rotating sleeve 5 descends, so that the tool magazine cover plate 4 is flush with the top of the workbench 2, thereby increasing the processing operation space of the workbench 2.

[0038] When it is necessary to replace the tool, the piston rod of the cylinder 24 moves up and drives the slider 22 and its external connecting plate 23 to move up synchronously. The slider 22 and the connecting plate 23 drive the tool magazine to move until it is above the workbench 2. The upward movement of the tool will also drive the tool magazine cover plate 4 to disengage from the tool magazine slot 3 upward, and then the rotating sleeve 5 is driven to rotate a fixed angle by controlling the rotating motor 13, so that the idle tool clamp is facing the retracting route of the tool changing spindle 1 to prepare to receive the tool, and then the tool changing spindle 1 retreats according to the set route and clamps the tool into the idle tool clamp 6. The tool clamp 6 is designed with a deformation groove 68 to make the limit part have a certain elasticity, good clamping effect, and convenient for tool changing. After the tool is clamped, the tool changing spindle 1 loosens the tool, and then the rotating motor 13 rotates a fixed angle again to rotate the tool to be replaced on one side to the bottom of the tool changing spindle 1. At this time, the tool changing spindle 1 clamps the tool to be replaced. When it moves back to the front workbench 2 in the opposite direction, the tool can be separated from the tool clamp 6 to complete the tool change.

[0039] The tool magazine of the utility model does not need the tool changing spindle 1 to move too much to adjust the position. It only needs to set a retraction route to cooperate with the tool magazine. After executing the tool changing command, the tool magazine adjusts the empty tool clamp 6 in advance to face the tool changing spindle 1. The tool changing spindle 1 only needs to retract to complete the tool lowering and tool changing actions, which greatly saves the tool changing time.

[0040] In addition, the utility model is designed to cooperate with the lifting rod 7 and the lead screw 9, so that the tool magazine of the utility model can be adapted to different types of engraving machines. The height of the lifting rod 7 and the tool clamp 6 at the end of the lifting rod 7 can be adaptively adjusted according to the size of the engraving machine and the height of the tool changing spindle 1, which facilitates the adjustment of the height position of the tool clamp 6, thereby meeting the use of different types of engraving machines and having a wide range of adaptation.

[0041] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A tool magazine for an engraving machine, characterized in that: The invention comprises a mounting seat, a cavity is arranged in the mounting seat, and a rotating motor is installed in the cavity, a rotating sleeve is rotatably installed on the mounting seat, the lower end of the rotating sleeve extends into the cavity and is transmission-connected with the rotating motor, an upper partition and a lower partition are respectively fixed in the rotating sleeve, at least three through slots are vertically spaced apart on the circumference of the rotating sleeve between the upper partition and the lower partition, a lead screw is rotatably installed at each through slot between the upper partition and the lower partition, the upper end of the lead screw passes through the upper partition and is installed with a fixed gear, a lifting motor having the same number as the through slots and arranged in a circular trajectory is installed on the upper partition, the output shaft of the lifting motor is connected to a driving gear meshing with the fixed gear, and each lead screw is threadedly connected with a lifting gear. A lowering block, each lifting block is horizontally connected with a lifting rod extending out of the through slot, and a tool clamp is installed at the end of each lifting rod. The tool clamp includes a connecting seat and two claw arms symmetrically arranged on one side of the connecting seat, the claw arm includes a claw arm body, a limiting part connected to the claw arm body and an arc-shaped supporting part, the limiting part includes a connecting plate and an arc-shaped limiting plate, one end of the connecting plate is connected to the arc-shaped limiting plate, and the other end is connected to the claw arm body, the inner circular surface of the arc-shaped limiting plate is convexly provided with a first arc-shaped boss, the arc-shaped supporting part includes an arc-shaped supporting plate, the inner circular surface of the arc-shaped supporting plate is convexly fixedly connected with a second arc-shaped boss corresponding to the first arc-shaped boss, and a deformation groove is formed between the limiting part and the arc-shaped supporting part.

2. The tool magazine for engraving machine according to claim 1, characterized in that: The lower end of the rotating sleeve is sleeved with a driven gear in the cavity, and the driving shaft of the rotating motor is installed with a driving gear meshing with the driven gear.

3. The tool magazine for engraving machine according to claim 1, characterized in that: The width of the lifting rod is the same as the width of the through slot.

4. The tool magazine for engraving machine according to claim 1, characterized in that: The upper and lower ends of each lead screw are respectively sleeved with limit blocks, and each limit block is embedded with a limit switch, which is electrically connected to the lifting motor connected to the corresponding lead screw.

5. The tool magazine for engraving machine according to claim 4, characterized in that: A tool magazine slot is provided on the workbench of the engraving machine, and a mounting seat is movably installed in the tool magazine slot through a lifting mechanism. A tool magazine cover plate flush with the workbench is provided at the edge of the tool magazine slot, and the tool magazine cover plate is connected to the top of the rotating sleeve.

6. The tool magazine for engraving machine according to claim 5, characterized in that: The lifting mechanism includes two guide rails vertically installed on the bottom of the tool magazine slot, and sliders are slidably connected to the two guide rails. The two sliders are connected to the mounting seat through connecting plates respectively. Two cylinders connected by piston rods and connecting plates are installed on the bottom of the tool magazine slot corresponding to the sliders.

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