Automatic tool changing device of machining center

Abstract

The utility model discloses an automatic tool changer of machining center, including mounting square column, adjusting square column, fixed column, fixed column fixed connection to adjusting square column top, adjusting square column is provided the mounting square column top, adjusting square column front side is provided with the receiving tray, the receiving tray top side is provided with the gap, the gap is provided with the mounting square column top side, the mounting square column top side is provided with the mounting square column top side, and the mounting square column top side is provided with the mounting square column top side. A tool outlet is formed in the bottom side of the inner wall of the notch in a penetrating mode, in the machining process, the containing disc cannot be arranged in the machining center to affect use of the main shaft, the machining space around the main shaft of the machining center is greatly increased, the tool outlet of the containing disc can automatically correspond to the position under the main shaft of the machining center, and the machining efficiency is improved. The design structure is reasonable in replacement, multiple driving devices do not need to be arranged outside the storage disc, the size of the whole device is reduced, the number of tools installed in the storage disc is greatly increased, insertion of the tools and disassembly and recovery of the tools can be automatically completed, and use and operation are more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to an automatic tool changing device for a machining center. Background Art

[0002] Generally, CNC machining usually refers to computer digital controlled precision machining. When machining a workpiece, different machining processes require different CNC tools. Usually, the tools need to be replaced frequently during the machining process in order to complete the machining of a workpiece.

[0003] In the prior art, application number 202021759074.0 discloses an automatic tool changing device for a CNC machining center, comprising a frame, a spindle is provided at the top of the frame, and a lifting frame is provided in the middle of the frame, a lifting motor is provided at the top of the lifting frame, and the shaft of the lifting motor is connected to a screw rod, a first slide rail is provided inside the lifting frame, and a cylinder is connected to the inside of the lifting frame through the first slide rail, a second slide rail is provided on the upper end surface of the cylinder, and the lower end of the slider is connected to the second slide rail, one end of the slider is connected to a motor fixing plate, and the shaft end of the cylinder is connected to the motor fixing plate, and the motor A rotating motor is provided on the fixed plate of the machine, and a dust cover is provided on the rotating motor, a tool changing port is provided on the upper end of the dust cover, and a buckle is provided on the dust cover, and a dust cover is provided on the outer side of the dust cover; the above-mentioned tool changing device is arranged on the rear side of the spindle of the machining center, and the distance adjustment mechanism and the rotating structure of the turntable are not arranged reasonably, which greatly increases the volume of the overall device and reduces the processing space around the spindle of the machining center, and the number of turntable-mounted knives of the above-mentioned device is too small to meet the use of the machining center tools. The tools are installed by simple socketing of the clamps, and the stability of tool positioning is insufficient.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes an automatic tool changing device for a machining center to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] An automatic tool changing device for a machining center comprises an installation square column, an adjustment square column and a fixed column, wherein the fixed column is fixedly connected to the top of the adjustment square column, the adjustment square column is arranged on the top of the installation square column, a storage tray is arranged on the front side of the adjustment square column, a notch is dug on the top side of the storage tray, and a tool outlet is arranged through the bottom side of the inner wall of the notch.

[0008] Preferably, a first motor is fixedly connected inside the mounting square column, a second motor is fixedly connected inside the fixing column, and an output shaft of the first motor passes through the top of the mounting square column and is fixedly connected to the bottom side of the adjusting square column.

[0009] Preferably, a rectangular groove is dug on the front side of the adjusting square column, a first threaded rod is connected to the bottom side of the inner wall of the rectangular groove through a bearing, a second threaded rod is fixedly connected to the top end of the first threaded rod, an output shaft of the second motor is fixedly connected to the top end of the second threaded rod, and guide rods are respectively provided at the four corners between the inner walls of the rectangular groove.

[0010] Preferably, a lifting block is sleeved on the outer side of the first threaded rod and the guide rod, and on the outer side of the second threaded rod and the guide rod. A nut is penetrated through the inside of the lifting block through a bearing, and is threadedly connected to the first threaded rod and the second threaded rod respectively through the nut.

[0011] Preferably, horizontal plates are fixed on the left and right sides of the adjustment square column respectively, and a limiting rod is fixedly connected to the front side of the horizontal plate. Limiting holes are symmetrically provided on the edge of the outer wall of the storage tray, and are slidably mounted on the limiting rod through the limiting holes. The front side of the lifting block is connected with an adjusting rod through a hinge shaft, and the outer ends of the adjusting rods are respectively connected to the inner side of the storage tray through hinge shafts.

[0012] Preferably, a mounting groove is dug in the middle of the rear side of the storage tray, a third motor is fixedly connected to the inside of the mounting groove, the output shaft of the third motor extends into the inner cavity of the storage tray and is fixedly connected to a feeding tray, a connecting disk is embedded in the middle of the front side of the feeding tray through a bearing, a telescopic cylinder is fixed to the front side of the connecting disk, and support rods are symmetrically provided on the front side of the connecting disk.

[0013] Preferably, the front end of the support rod is fixedly connected to the front side of the inner wall of the storage tray, and a rodless cylinder is equidistantly embedded and fixed on the front side of the feeding tray. The movable end of the rodless cylinder is fixedly connected to a positioning square tube, and a sleeve is fixed through the outer end of the positioning square tube.

[0014] Preferably, positioning blocks are embedded at the four corners on both sides of the inner wall of the positioning square tube, and a movable cavity is provided in the wall cavity at the four corners on both sides of the inner wall of the positioning square tube. A spring is fixedly connected to the inner wall of the movable cavity, and the outer end of the spring is fixedly connected to the positioning block.

[0015] The beneficial effects of the utility model are as follows: during the machining process, the storage tray can be set inside the machining center without affecting the use of the spindle, which greatly increases the machining space around the spindle of the machining center, and the knife outlet of the storage tray can be automatically aligned with the bottom of the spindle of the machining center. The reasonable design structure does not require the installation of multiple drive devices outside the storage tray, which reduces the size of the overall device and greatly increases the number of tools installed inside the storage tray. The tool insertion, removal and recovery can be completed automatically, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an automatic tool changing device for a machining center according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the installation square column, the adjustment square column and the fixed column of an automatic tool changing device for a machining center according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the inner structure of a storage tray of an automatic tool changing device for a machining center according to an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the appearance structure of a feeding tray of an automatic tool changing device for a machining center according to an embodiment of the utility model;

[0021] Figure 5 The utility model is a cross-sectional structural diagram of a positioning square tube of an automatic tool changing device for a machining center according to an embodiment of the utility model.

[0022] In the figure:

[0023] 1. Install the square column; 2. Adjust the square column; 3. Fix the column; 4. Storage tray; 5. Notch; 6. Knife edge; 7. First motor; 8. Second motor; 9. Rectangular groove; 10. First threaded rod; 11. Second threaded rod; 12. Guide rod; 13. Lifting block; 14. Horizontal plate; 15. Limit rod; 16. Limit hole; 17. Adjust rod; 18. Install groove; 19. Third motor; 20. Feed tray; 21. Connecting tray; 22. Telescopic cylinder; 23. Support rod; 24. Rodless cylinder; 25. Positioning square tube; 26. Sleeve; 27. Positioning block; 28. Movable cavity; 29. ​​Spring. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, an automatic tool changing device for a machining center is provided.

[0026] Embodiment 1

[0027] like Figure 1-5 As shown, an automatic tool changing device for a machining center according to an embodiment of the utility model comprises a mounting square column 1, an adjusting square column 2, and a fixing column 3. The fixing column 3 is fixedly connected to the top of the adjusting square column 2. The adjusting square column 2 is arranged on the top of the mounting square column 1. A storage tray 4 is arranged on the front side of the adjusting square column 2. A notch 5 is dug on the top side of the storage tray 4. A knife outlet 6 is penetrated on the bottom side of the inner wall of the notch 5. A first motor 7 is fixedly connected inside the mounting square column 1. A second motor 8 is fixedly connected inside the fixing column 3. The output shaft of the first motor 7 passes through the top of the mounting square column 1 and is connected to the adjusting square column 2 bottom side is fixedly connected, the mounting square column 1 is fixedly connected to one side of the spindle of the machining center, when the tool change operation is needed, the first motor 7 is started, and the output shaft of the first motor 7 drives the adjusting square column 2 to rotate backward, so that the storage tray 4 on the adjusting square column 2 can be rotated to the side of the spindle of the machining center. When not in use, the adjusting square column 2 can be reset to make the storage tray 4 leave the machining center, so that during the machining process, the storage tray 4 will not be set inside the machining center to affect the use of the spindle, thereby greatly increasing the machining space around the spindle of the machining center.

[0028] Embodiment 2

[0029] like Figure 1-5As shown, an automatic tool changing device for a machining center according to an embodiment of the utility model comprises a mounting square column 1, an adjusting square column 2, and a fixing column 3. The fixing column 3 is fixedly connected to the top of the adjusting square column 2. The adjusting square column 2 is arranged on the top of the mounting square column 1. A storage tray 4 is arranged on the front side of the adjusting square column 2. A notch 5 is dug on the top side of the storage tray 4. A knife outlet 6 is provided through the bottom side of the inner wall of the notch 5. A rectangular groove 9 is dug on the front side of the adjusting square column 2. A first threaded rod 10 is connected to the bottom side of the inner wall of the rectangular groove 9 through a bearing. A second threaded rod 11 is fixedly connected to the top of the first threaded rod 10. The output shaft of the second motor 8 is fixedly connected to the top of the second threaded rod 11, and guide rods 12 are respectively provided at the four corners between the inner walls of the rectangular groove 9. A lifting block 13 is sleeved on the outer sides of the first threaded rod 10 and the guide rod 12, and on the outer sides of the second threaded rod 11 and the guide rod 12. A nut is penetrated through the inside of the lifting block 13 through a bearing, and is threadedly connected with the first threaded rod 10 and the second threaded rod 11 through the nut. The left and right sides of the adjusting square column 2 are respectively fixed with a horizontal plate 14, and the front side of the horizontal plate 14 is fixedly connected with a limit rod 15. The outer wall edge of the storage tray 4 is symmetrically penetrated A limiting hole 16 is provided, and the limiting hole 16 and the limiting rod 15 are slidably sleeved. The front side of the lifting block 13 is connected with an adjusting rod 17 through a hinge shaft. The outer ends of the adjusting rod 17 are connected to the inner side of the storage tray 4 through the hinge shaft. The first threaded rod 10 and the second threaded rod 11 are respectively connected to the positive thread groove and the reverse thread groove. When the second motor 8 is started, the output shaft of the second motor 8 drives the second threaded rod 11 to rotate, and the bottom end of the second threaded rod 11 drives the first threaded rod 10 to rotate, so that the first threaded rod 10 and the lifting block 13 and the second threaded rod 11 outside the guide rod 12 can be rotated. The lifting blocks 13 on the outer sides of the pattern rod 11 and the guide rod 12 respectively drive the adjusting rod 17 to move inward or outward at the same time, and the limiting rods 15 on the horizontal plates 14 on both sides of the adjusting square column 2 are respectively sleeved in the limiting holes 16 of the storage tray 4. The limiting rods 15 can limit and guide the storage tray 4, so that the storage tray 4 can be telescopically moved toward the inside of the machining center on one side of the machining center, and the knife edge 6 of the storage tray 4 can be automatically aligned with the main shaft of the machining center. The reasonable design structure replacement does not require the installation of multiple driving devices outside the storage tray 4, thereby reducing the volume of the overall device.

[0030] Embodiment 3

[0031] like Figure 1-5As shown, an automatic tool changing device for a machining center according to an embodiment of the utility model comprises an installation square column 1, an adjustment square column 2, and a fixed column 3. The fixed column 3 is fixedly connected to the top of the adjustment square column 2. The adjustment square column 2 is arranged on the top of the installation square column 1. A storage tray 4 is arranged on the front side of the adjustment square column 2. A notch 5 is dug on the top side of the storage tray 4. A knife outlet 6 is provided through the bottom side of the inner wall of the notch 5. An installation groove 18 is dug in the middle of the rear side of the storage tray 4. A third motor 19 is fixedly connected inside the installation groove 18. The output shaft of the third motor 19 extends into the inner cavity of the storage tray 4 and is fixedly connected to a feeding tray 20. A connecting disk 21 is embedded in the middle of the front side of the feeding tray 20 through a bearing. A telescopic cylinder 22 is fixed on the front side of the connecting disk 21, and a support rod 23 is symmetrically arranged on the front side of the connecting disk 21. The front end of the support rod 23 is fixedly connected to the front side of the inner wall of the storage disk 4. A rodless cylinder 24 is equidistantly embedded and fixed on the front side of the feeding disk 20. The movable end of the rodless cylinder 24 is fixedly connected to a positioning square tube 25. A sleeve 26 is fixed through the outer end of the positioning square tube 25. Positioning blocks 27 are respectively embedded at the four corners on both sides of the inner wall of the positioning square tube 25. An active cavity 28 is arranged in the wall cavity at the four corners on both sides of the inner wall of the positioning square tube 25. A spring 29 is fixedly connected to the inner wall of the active cavity 28. The outer end of the spring 29 is fixedly connected to the positioning block 27. By starting the third electric The output shaft of the third motor 19 drives the feeding tray 20 in the storage tray 4 to rotate, and the connecting disk 21 is fixedly connected to the inner wall of the storage tray 4 through the support rod 23, so that the feeding tray 20 can rotate while the connecting disk 21 remains stationary, and the positioning square tube 25 and the sleeve 26 are sleeved with a tool, and the tool head is inserted into the positioning square tube 25. Under the action of the spring 29, the positioning block 27 can clamp and fix the outer wall of the tool head. After the corresponding tool rotates to the bottom of the knife outlet 6 through the feeding tray 20, the rodless cylinder 24 is started, and the movable end of the rodless cylinder 24 drives the sleeve 26 to extend out of the knife outlet 6 and is sleeved on the machining center The outer side of the spindle is then moved, and the telescopic cylinder 22 is then started. The movable end of the telescopic cylinder 22 extends into the positioning square tube 25, so that the tool is disengaged from the clamping of the positioning block 27, and then the tool is inserted into the tool interface of the spindle, which greatly increases the number of tools installed inside the storage tray 4 and makes the tool inserted into the tool interface of the spindle quickly replaced. Similarly, after the empty sleeve 26 is sleeved on the outer side of the spindle, the tool to be disassembled is clamped by the positioning block 27 of the positioning square tube 25, and then the movable end of the rodless cylinder 24 is controlled to reset, and the tool is pulled out and stored from the inside of the spindle. The tool insertion, disassembly and recovery of the tool can be completed automatically, and the operation is more convenient.

[0032] In summary, with the aid of the above technical solution of the utility model, when the device is in use, the mounting square column 1 is fixedly connected to one side of the spindle of the machining center. When a tool change operation is required, the first motor 7 is started, and the output shaft of the first motor 7 drives the adjusting square column 2 to rotate backward, so that the storage tray 4 on the adjusting square column 2 can be rotated to one side of the spindle of the machining center. When not in use, the adjusting square column 2 can be reset to make the storage tray 4 leave the machining center. When the second motor 8 is started, the output shaft of the second motor 8 drives the second threaded rod 11 to rotate, and the second threaded rod 1 The bottom end of the first threaded rod 10 drives the first threaded rod 10 to rotate, so that the first threaded rod 10 and the lifting block 13 outside the guide rod 12, the second threaded rod 11 and the lifting block 13 outside the guide rod 12 respectively drive the adjusting rod 17 to move inward or outward at the same time, and the limiting rods 15 on the horizontal plates 14 on both sides of the adjusting square column 2 are respectively sleeved in the limiting holes 16 of the storage tray 4. The limiting rods 15 can limit and guide the storage tray 4, so that the storage tray 4 can telescope from one side of the machining center to the inside of the machining center, and the knife edge 6 of the storage tray 4 can be automatically adjusted to correspond to the machining center. The third motor 19 is directly below the main shaft, and the output shaft of the third motor 19 drives the feeding tray 20 in the storage tray 4 to rotate. The connecting disk 21 is fixedly connected to the inner wall of the storage tray 4 through the support rod 23, so that the feeding tray 20 can rotate while the connecting disk 21 remains stationary. The positioning square tube 25 and the sleeve 26 are provided with a tool, and the tool head is inserted into the positioning square tube 25. Under the action of the spring 29, the positioning block 27 can clamp and fix the outer wall of the tool head. When the corresponding tool passes through the feeding tray 20 and rotates to the position directly below the knife outlet 6 After that, start the rodless cylinder 24, and the movable end of the rodless cylinder 24 drives the sleeve 26 to extend out of the cutting edge 6 and is sleeved on the outside of the spindle of the machining center, and then start the telescopic cylinder 22, and the movable end of the telescopic cylinder 22 extends into the positioning square tube 25, so that the tool is released from the clamping of the positioning block 27, and then the tool is inserted into the tool interface of the spindle. Similarly, after the empty sleeve 26 is sleeved on the outside of the spindle, the tool to be disassembled is clamped by the positioning block 27 of the positioning square tube 25, and then the movable end of the rodless cylinder 24 is controlled to reset, and the tool is pulled out and stored from the inside of the spindle.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic tool changing device for a machining center, comprising a mounting square column (1), an adjusting square column (2), and a fixing column (3), characterized in that: The fixing column (3) is fixedly connected to the top of the adjusting square column (2); the adjusting square column (2) is arranged on the top of the mounting square column (1); a storage tray (4) is arranged on the front side of the adjusting square column (2); a notch (5) is dug on the top side of the storage tray (4); and a knife opening (6) is provided through the bottom side of the inner wall of the notch (5).

2. The automatic tool changing device for a machining center according to claim 1, characterized in that: A first motor (7) is fixedly connected inside the mounting square column (1), a second motor (8) is fixedly connected inside the fixing column (3), and an output shaft of the first motor (7) passes through the top of the mounting square column (1) and is fixedly connected to the bottom side of the adjustment square column (2).

3. The automatic tool changing device for a machining center according to claim 2, characterized in that: A rectangular groove (9) is excavated on the front side of the adjusting square column (2); a first threaded rod (10) is connected to the bottom side of the inner wall of the rectangular groove (9) via a bearing; a second threaded rod (11) is fixedly connected to the top of the first threaded rod (10); an output shaft of the second motor (8) is fixedly connected to the top of the second threaded rod (11); and guide rods (12) are respectively provided at the four corners between the inner walls of the rectangular groove (9).

4. The automatic tool changing device for a machining center according to claim 3, characterized in that: A lifting block (13) is sleeved on the outer sides of the first threaded rod (10) and the guide rod (12), and on the outer sides of the second threaded rod (11) and the guide rod (12); a nut is penetrated through the inside of the lifting block (13) via a bearing, and is threadedly connected to the first threaded rod (10) and the second threaded rod (11) respectively through the nut.

5. The automatic tool changing device for a machining center according to claim 4, characterized in that: The left and right sides of the adjusting square column (2) are respectively fixed with a transverse plate (14), the front side of the transverse plate (14) is fixedly connected with a limiting rod (15), the outer wall edge of the storage tray (4) is symmetrically provided with a limiting hole (16), and the limiting hole (16) and the limiting rod (15) are slidably sleeved, the front side of the lifting block (13) is connected with an adjusting rod (17) through a hinge shaft, and the outer ends of the adjusting rod (17) are respectively connected to the inner side of the storage tray (4) through the hinge shaft.

6. The automatic tool changing device for a machining center according to claim 5, characterized in that: A mounting groove (18) is excavated in the middle of the rear side of the storage tray (4), a third motor (19) is fixedly connected inside the mounting groove (18), an output shaft of the third motor (19) extends into the inner cavity of the storage tray (4) and is fixedly connected to a feeding tray (20), a connecting disk (21) is embedded in the middle of the front side of the feeding tray (20) through a bearing, a telescopic cylinder (22) is fixed on the front side of the connecting disk (21), and a support rod (23) is symmetrically provided on the front side of the connecting disk (21).

7. The automatic tool changing device for a machining center according to claim 6, characterized in that: The front end of the support rod (23) is fixedly connected to the front side of the inner wall of the storage tray (4), and a rodless cylinder (24) is equidistantly embedded and fixed on the front side of the feeding tray (20). The movable end of the rodless cylinder (24) is fixedly connected to a positioning square tube (25), and a sleeve (26) is fixedly passed through the outer end of the positioning square tube (25).

8. The automatic tool changing device for a machining center according to claim 7, characterized in that: Positioning blocks (27) are respectively embedded at the four corners on both sides of the inner wall of the positioning square tube (25); a movable cavity (28) is provided in the wall cavity at the four corners on both sides of the inner wall of the positioning square tube (25); a spring (29) is fixedly connected to the inner wall of the movable cavity (28); and the outer end of the spring (29) is fixedly connected to the positioning block (27).

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