Rotary tool magazine mechanism

Abstract

The utility model provides a rotary tool magazine mechanism which is arranged on a processing machine. The rotary tool magazine mechanism comprises a rotary tool storage device and a tool exchange device. The rotary tool storage device is located on the front side of the main shaft and provided with a rotary unit capable of rotating around the X axis. And a plurality of tool holder seats are arranged on the rotary unit, are used for clamping tools, and can be switched between a tool storage position and a tool holder seat replacement position through rotary lifting of the rotary unit. The tool exchange device can take down or replace the tool holder from the rotary tool storage device at the tool holder replacement position, and the taken-down tool holder is moved to the tool replacement position along at least one of the X axis and the Z axis for tool replacement of the main shaft. The design aims at achieving efficient tool changing and reducing the space, occupied by the tool magazine, of the machining machine. In addition, according to requirements, a tool holder rotation driving unit can be installed on the tool exchange device, so that the multi-direction tool exchange function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tool magazine system, especially a rotary tool magazine mechanism. BACKGROUND

[0002] In order to improve the processing efficiency, the existing processing machine is usually equipped with a tool changing arm and a tool magazine, which facilitates the exchange of tools on the spindle and tools in the tool magazine by the tool changing arm. However, such a tool magazine occupies a large space and has a complex structure, which is not suitable for multi-spindle processing machines, and even more does not have the ability of multi-direction tool changing and mixing different tool shank specifications.

[0003] In addition, the tool magazine of a multi-axis processing machine is usually arranged on the back or side of the machine tool, which results in long tool changing travel, long tool changing time, and less number of tools that can be placed in the tool magazine.

[0004] As disclosed in patent No. CN105873720A, a tool magazine is independently arranged on the side of the workbench and is divided into a rack area and an automatic tool changing (ATC) area. However, such a tool magazine also occupies a large space and has a complex structure.

[0005] Therefore, the utility model provides a rotary tool magazine mechanism to solve the above technical problems, which can change tools according to the number of spindle, tool shank specifications and spindle tool changing direction of the processing machine. SUMMARY

[0006] In view of the above situation, it is necessary to provide a rotary tool magazine mechanism to solve at least one of the above problems, which is arranged in a processing machine having a workbench and at least one spindle, and the rotary tool magazine mechanism comprises:

[0007] a rotary tool storage device arranged in front of the spindle, the rotary tool storage device having a rotary unit rotating around the X-axis, the rotary unit being provided with a plurality of tool holders, each tool holder having at least one tool, each tool holder being lifted and switched between a plurality of tool storage positions and a tool changing holder position by the rotary unit;

[0008] and a tool exchange device capable of disengaging the tool holder at the tool changing holder position and driving the corresponding tool holder to move along at least one of the X-axis and the Z-axis to a tool changing position, so that the spindle can take off or return the tool from or to the tool holder, or return the tool holder to the corresponding rotary unit at the tool changing holder position, so that it can run again at the tool storage position.

[0009] Preferably, the tool holder is arranged in the rotary unit by a limiting frame, and the limiting frame is fixedly arranged on the outer surface of the rotary unit.

[0010] Preferably, the rotary tool storage device comprises a positioning plate and a driving unit fixed to the positioning plate to drive the rotary unit; the rotary unit is a chain, and two driving sprockets are arranged around the chain, and each driving sprocket is pivotally connected to the two ends of the positioning plate, and the driving sprockets drive the driving unit.

[0011] Preferably, the inner walls on both sides of the limiting frame are respectively provided with symmetrically arranged first sliding grooves, and the tool holder is provided with two first positioning sliding blocks corresponding to the positions of the first sliding grooves, and the first positioning sliding blocks are slidably arranged in the corresponding first sliding grooves.

[0012] Preferably, the chain is provided with extended reinforcing sheets on both sides of the position fixed to the limiting frame, and each reinforcing sheet is fixed to the corresponding limiting frame, so that the limiting frame is fixed to the rotary unit; the positioning plate is provided with a transverse fixing column, the length of the transverse fixing column is greater than the length of the tool holder, and the two ends of the transverse fixing column are respectively provided with support columns, and each support column is fixed to the two sides of the machining machine.

[0013] Preferably, the two sides of the tool holder are provided with a second positioning sliding block, and the tool exchange device is provided with two second sliding grooves corresponding to the positions of the second positioning sliding blocks, and each second positioning sliding block is slidably arranged in the corresponding second sliding groove.

[0014] Preferably, the second positioning sliding block is provided with a lock hole, the second sliding groove is provided with a locking unit, and when the second positioning sliding block is slidably arranged in the second sliding groove, the locking unit is locked in the corresponding lock hole.

[0015] Preferably, the machining machine has a machine base, the working platform is arranged on the machine base, the machine base is provided with a vertical column, the main shaft is arranged on the vertical column and can move along the Y-axis, and the machining machine is provided with a frame body on the opposite side of the vertical column; the tool exchange device further comprises a Z-axis driving unit and an X-axis driving unit, and the Z-axis driving unit and the X-axis driving unit are arranged between the vertical column and the frame body and are used to drive the tool holder to move along the Z-axis and the X-axis.

[0016] Preferably, the tool exchange device is arranged on both sides of the working platform, and the working platform can move along the X-axis and the Z-axis.

[0017] Preferably, the tool exchange device further comprises at least one tool holder rotation driving unit, the tool holder rotation driving unit is arranged at one end of the X-axis driving unit sliding seat and is connected with the base part of the second sliding groove, and is used to drive the tool holder locked in the second sliding groove to rotate around the X-axis. BRIEF DESCRIPTION OF DRAWINGS

[0018] 100: rotary tool storage mechanism

[0019] 10: machining machine; 11: work platform; 12: main shaft; 13: machine base; 14: column; 15: frame body;

[0020] 20: rotary tool storage device; 21: rotary unit; 211: chain; 212: driving sprocket; 213: reinforcing sheet; 22: tool holder; 221: first positioning slider; 222: second positioning slider; 223: lock hole; 23: tool; 24: limiting frame; 241: first sliding groove; 25: positioning plate; 26: driving unit; 27: transverse fixing column; 28: supporting column;

[0021] 30: tool exchange device; 31: second sliding groove; 32: locking unit; 33: Z-axis driving unit; 34: X-axis driving unit; 35: tool holder rotating driving unit

[0022] P1: tool storage position

[0023] P2: tool holder exchange position

[0024] P3: tool exchange position

[0025] Figure 1 is a structure schematic view of a rotary tool magazine mechanism of an embodiment of the utility model applied to a machining machine.

[0026] Figure 2 is a side view of a rotary tool magazine mechanism of an embodiment of the utility model applied to a machining machine.

[0027] Figure 3 is a side action schematic view of a rotary tool storage device of an embodiment of the utility model.

[0028] Figure 4 is a schematic view of a rotary tool storage device and a tool exchange device combined of an embodiment of the utility model, and shows a part of structure enlarged schematic view of a limiting frame and a tool holder combined.

[0029] Figure 5 is another view schematic view and part of structure enlarged schematic view of a rotary tool storage device and a tool exchange device combined of an embodiment of the utility model.

[0030] Figure 6 is a structure schematic view of a tool holder rotating driving unit of an embodiment of the utility model rotating a tool holder, and makes a tool dump.

[0031] Figure 7 is an action schematic view of a tool exchange device of an embodiment of the utility model driving a tool holder to move to the direction of a main shaft.

[0032] Figure 8Is the action schematic diagram of the tool changer device of the embodiment of the utility model to make the tool holder displace to the tool changing position.

[0033] Figure 9 Is the action schematic diagram of the tool holder of the embodiment of the utility model to displace to the tool changing position for the main shaft to take down the tool.

[0034] Figure 10 Is the action schematic diagram of the tool holder of the embodiment of the utility model to reset along the Z axis away from the direction of the main shaft.

[0035] Figure 11 Is the structure schematic diagram of another embodiment of the rotary tool magazine mechanism of the embodiment of the utility model.

[0036] Figure 12 Is the side view of another embodiment of the rotary tool magazine mechanism of the embodiment of the utility model. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the rotary tool magazine mechanism of the utility model is further explained in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0038] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for description purposes, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanical connection, or electrical connection; It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Please see Figure 1The utility model discloses a rotary tool magazine mechanism 100, which is arranged on a machining machine 10, the machining machine 10 is provided with a workbench 11 and at least one spindle 12, and the machining machine 10 is further provided with a machine base 13, the workbench 11 is arranged on the machine base 13, and the machine base 13 is provided with a vertical column 14, wherein the spindle 12 is arranged in parallel to the Y axis in the embodiment, and the spindle 12 can be moved along the Y axis and arranged on the vertical column 14; the machining machine 10 is provided with a frame body 15 on the opposite side of the vertical column 14; the rotary tool magazine mechanism 100 comprises a rotary tool storage device 20 and a tool exchange device 30.

[0041] Please refer to Figure 1 And Figure 2 The rotary tool storage device 20 is arranged on the front side of the spindle 12, and the rotary tool storage device 20 is provided with a rotary unit 21 rotating around the X axis; the rotary unit 21 is provided with a plurality of tool holders 22, each tool holder 22 is provided with at least one tool 23, and the tool holder 22 is lifted and displaced by the rotary unit 21 and switched between a plurality of tool storage positions P1 and a tool holder replacement position P2. The tool holder 22 can also be installed with tools 23 of the same or different specifications according to requirements to meet the requirements of machining applications.

[0042] Please continue to refer to Figure 1 And Figure 2 The tool exchange device 30 can make the tool holder 22 at the tool holder replacement position P2 disengage, drive the corresponding tool holder 22 to displace along at least one of the X axis and the Z axis to a tool replacement position P3, and in the embodiment, the tool holder 22 can displace along the X axis and the Z axis, so that the spindle 12 can take down or play back the tool 23 from the tool holder 22, or the tool holder 22 is returned to the corresponding rotary unit 21 at the tool holder replacement position P2, so that the tool holder 22 can run at the plurality of tool storage positions P1 again.

[0043] Please continue to refer to Figure 1 And Figure 2 The positioning plate 25 is provided with a transverse fixed column 27 penetrating through the center, the length of the transverse fixed column 27 is greater than the length of the tool holder 22, and the two ends of the transverse fixed column 27 are respectively fixedly provided with a support column 28, and the support column 28 is respectively fixedly arranged on the two sides of the machining machine 10. Through the above structure, the transverse fixed column 27 and the support column 28 provide support for the rotary unit 21.

[0044] Please refer to Figure 1 And Figure 2 The tool exchange device 30 further comprises a Z-axis driving unit 33 and an X-axis driving unit 34, the Z-axis driving unit 33 and the X-axis driving unit 34 are arranged between the vertical column 14 and the frame body 15 and used to drive one of the tool holders 22 to displace along the Z axis and the X axis. Through the above structure, the design of the Z-axis driving unit 33 and the X-axis driving unit 34 enables the tool holder 22 to be accurately positioned along the Z axis and the X axis.

[0045] Please continue to refer to Figure 3 , the rotary knife storage device 20 further includes a positioning plate 25 and a driving unit 26, the driving unit 26 is fixedly arranged on the positioning plate 25 to drive the rotation unit 21 to act; the rotation unit 21 is a chain 211 arranged on two driving sprockets 212, each driving sprocket 212 is respectively pivoted on both ends of the positioning plate 25, and one of the driving sprockets 212 is combined with the driving unit 26. By the above structure, the driving unit 26 is directly fixed on the positioning plate 25, which simplifies the overall design of the mechanism, thereby reducing the manufacturing cost; in addition, since the driving unit 26 directly drives the chain 211 arranged on the driving sprocket 212, the rotation unit 21 can operate quickly and accurately, thereby improving the efficiency of the knife holder 22 storage and replacement.

[0046] Please continue to refer to Figure 4 and Figure 5 , a plurality of knife holders 22 are arranged on the rotation unit 21 through a plurality of limiting racks 24, the limiting racks 24 are fixedly arranged on the outer surface of the rotation unit 21, the inner walls on both sides of the limiting rack 24 are respectively provided with a first sliding groove 241 arranged symmetrically, the first positioning sliding block 221 of the knife holder 22 corresponds to the position of the first sliding groove 241, and the first positioning sliding block 221 can be slidably arranged in the corresponding first sliding groove 241. By the above structure, the first positioning sliding block 221 of the knife holder 22 and the first sliding groove 241 of the limiting rack 24 are slidably matched with each other, which ensures the accurate positioning of the knife holder 22 on the rotation unit 21 and reduces the positioning error; the limiting racks 24 are distributed on the rotation unit 21 to provide uniform support force, preventing the knife holder 22 from shaking or shifting during operation, thereby improving the stability of the rotary knife storage device 20; in addition, since the knife holder 22 is connected with the limiting rack 24 through sliding cooperation, the knife holder 22 can be quickly disassembled and replaced when necessary.

[0047] Please continue to refer to Figure 4 and Figure 5 , the chain 211 is provided with an extension reinforcing sheet 213 on each position where the limiting rack 24 is fixed, the reinforcing sheet 213 is fixed on the corresponding limiting rack 24, so that each limiting rack 24 is fixed on the rotation unit 21. By the above structure, the addition of the reinforcing sheet 213 improves the bonding strength between the limiting rack 24 and the chain 211, ensuring that the limiting rack 24 is not easy to deform or loosen during movement.

[0048] Please continue to refer to Figure 5, each second positioning sliding block 222 is provided with a locking hole 223, each second sliding groove 31 is provided with a locking unit 32, and each second positioning sliding block 222 is locked in the corresponding locking hole 223 by the locking unit 32 when the second positioning sliding block 222 is slid in the second sliding groove 31. Through the above structure, the sliding cooperation between the second positioning sliding block 222 and the second sliding groove 31 ensures that the tool holder 22 can be stably positioned on the tool exchange device 30, so that deviation during the exchange of the tool 23 is avoided; and the locking unit 32 is locked in the locking hole 223, so that additional fixing force is provided to prevent the tool holder 22 from moving or separating from the tool exchange device 30 due to external force during operation.

[0049] Please refer to Figure 6 and in combination with Figure 5 , the tool exchange device 30 further comprises two tool holder rotating driving units 35 which are respectively arranged at both ends of the sliding seat of the X-axis driving unit 34 and combined with the base part of the second sliding groove 31, so as to drive the tool holder 22 locked in the second sliding groove 31 to rotate around the X-axis together with the tool 23, so that the tool 23 is consistent with the tool changing direction of the main shaft 12, and the function of multi-direction tool changing is achieved. In the above, only one set of tool holder rotating driving unit 35 can be arranged at one end of the sliding seat of the X-axis driving unit 34.

[0050] Please refer to Figures 7 to 10 and in combination with Figures 1 to 6 , the specific operation mode of the utility model can be summarized as follows:

[0051] 1. Rotation of the rotation unit 21: when the machining machine 10 needs to exchange the tool 23, the control system drives the rotation unit 21 of the rotary tool storage device 20 to rotate around the X-axis, which drives the plurality of tool holders 22 to move to different tool storage positions or tool changing holder positions in turn. When the predetermined tool holder 22 reaches the tool changing holder position, it will stay at this position.

[0052] 2. Tool holder 22 is taken off and exchanged: please refer to Figure 7 and Figure 8 in combination with Figures 1 to 6 , the tool exchange device 30 separates the tool holder 22 on the tool changing holder position P2 from the rotation unit 21 and drives it to move along the X-axis and the Z-axis to the tool changing position P3.

[0053] 3. The main shaft 12 takes and puts the tool 23: please refer to Figure 9 and in combination with Figures 1 to 6 , the main shaft 12 can return the tool 23 to the tool holder 22 along the Y-axis and take the required tool 23 from the tool holder 22.

[0054] 4, the tool holder 22 is returned: please refer to Figure 10 and combined Figures 1 to 7 , after the completion of the specific tool 23 exchange, the tool exchange device 30 will move the tool holder 22 back to the tool holder position P2, so that the tool holder 22 is engaged with the rotary unit 21 again. At this time, the rotary unit 21 operates to move the tool holder 22 to the tool storage position P1, or to continue the next tool holder 22 exchange operation.

[0055] Please refer to Figure 11 and Figure 12 , another embodiment of the utility model is disclosed, the rotary tool storage device 20 is roughly polygonal in whole and is erected on the main body of the tool exchange device 30, the tool holder 22 is distributed along the circumference of the rotary tool storage device 20, wherein the rotary tool storage device 20 is driven by a motor or other power source at the shaft center to rotate around the X axis and drive the tool holder 22 arranged thereon to rotate and switch to the tool holder position P2. The structure and action of the tool exchange device 30 are roughly similar to those of the previous embodiment. Although the number of tools 23 is relatively small, the expandability of the present embodiment is poor compared with the previous embodiment, but the structure of the present embodiment is more simple and the cost is relatively low.

[0056] In the above, although all the embodiments are not listed, the rotary tool storage device 20 disclosed in Figures 1 to 6 can be combined with the tool exchange device 30 disclosed in Figure 11 and Figure 12 ; the tool exchange device 30 disclosed in Figures 1 to 6 can be combined with the rotary tool storage device 20 disclosed in Figure 11 and Figure 12 to form different embodiments.

[0057] Through the above structure, the utility model has the following advantages:

[0058] 1. Efficient replacement of tools 23: the rotary tool magazine mechanism 100 of the utility model can quickly position and select the required tool holder 22 position through the cooperative operation of the rotary unit 21 and the tool exchange device 30, greatly shortens the tool holder 22 exchange time, and thus achieves the purpose of efficient replacement of tools 23.

[0059] 2. Reduce the space occupied by the machining machine 10: the rotary tool storage device 20 of the utility model comprises a plurality of tool holders 22, can store a plurality of groups of tools 23 at the same time, and is located in front of the main shaft 12 and above the workbench 11, which can reduce the space occupied by the machining machine 10.

[0060] 3. High flexibility: multiple tool holders 22 in the rotary tool storage device 20 can store multiple types of tool handles, providing users with the flexibility to replace tools according to different processing needs. 4. Multi-directional tool changing: the tool holder rotating drive unit 35 rotates the tool holder 22 together with the tool 23 around the X-axis to meet the tool changing direction of the main shaft 12, further enhancing the versatility of the tool magazine on the machining machine 10. The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution range of the present application, and equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A rotary tool magazine mechanism arranged in a machining machine, the machining machine having a worktable and at least one spindle, the rotary tool magazine mechanism comprising: a rotary tool storage device arranged in front of the spindle, the rotary tool storage device having a rotary unit rotating around an X-axis, the rotary unit being provided with a plurality of tool holders, each of the tool holders having at least one tool, each of the tool holders being revolved and lifted by the rotary unit and switched between a plurality of tool storage positions and a tool holder replacement position; and a tool exchange device capable of separating the tool holder at the tool holder replacement position and driving the corresponding tool holder to move along at least one of the X-axis and the Z-axis to a tool replacement position, so that the spindle takes down or plays back the tool from or to the tool holder, or returns the tool holder at the tool holder replacement position to the corresponding rotary unit to run again at the tool storage position.

2. The rotary blade library mechanism of claim 1, wherein, The tool holders are arranged in the rotary unit through a limiting frame, and the limiting frame is fixedly arranged on the outer surface of the rotary unit.

3. The rotary blade library mechanism of claim 2, wherein, The rotary tool storage device comprises a positioning plate and a driving unit, the driving unit being fixedly arranged on the positioning plate to drive the rotary unit; the rotary unit is a chain, and two driving sprockets are arranged around the chain, each of the driving sprockets being pivotally connected to the two ends of the positioning plate, and the driving sprockets drive the driving unit.

4. The rotary blade library mechanism of claim 3, wherein, The inner walls of the limiting frame on both sides are respectively provided with symmetrically arranged first sliding grooves, and the tool holders are provided with two first positioning sliding blocks corresponding to the positions of the first sliding grooves, and the first positioning sliding blocks are slidably arranged in the corresponding first sliding grooves.

5. The rotary blade library mechanism of claim 4, wherein, The chain is provided with extended reinforcing sheets on the positions fixedly arranged on the limiting frame and facing two different sides, each of the reinforcing sheets is fixedly arranged on the corresponding limiting frame, so that the limiting frame is fixedly arranged on the rotary unit; the positioning plate is provided with a transverse fixing column, the length of the transverse fixing column is greater than the length of the tool holder, and the two ends of the transverse fixing column are respectively provided with support columns, and each of the support columns is fixedly arranged on the two sides of the machining machine.

6. The rotary blade library mechanism of claim 5, wherein, The two sides of the tool holder are provided with a second positioning sliding block, and the corresponding positions of the tool exchange device are provided with two second sliding grooves, and each of the second positioning sliding blocks is slidably arranged in the corresponding second sliding groove.

7. The rotary blade library mechanism of claim 6, wherein, The second positioning sliding block is provided with a lock hole, the second sliding groove is provided with a locking unit, and when the second positioning sliding block is slidably arranged in the second sliding groove, the locking unit is locked in the corresponding lock hole.

8. The rotary blade library mechanism of claim 7, wherein, The machining machine has a machine base, the worktable is arranged on the machine base, the machine base is provided with a vertical column, the spindle can be arranged on the vertical column and move along the Y-axis, and the machining machine is provided with a frame on the opposite side of the vertical column; the tool exchange device further comprises a Z-axis driving unit and an X-axis driving unit, the Z-axis driving unit and the X-axis driving unit are arranged between the vertical column and the frame and are used to drive the tool holder to move along the Z-axis and the X-axis.

9. The rotary blade library mechanism of claim 7, wherein, The tool exchange device is arranged on both sides of the worktable, and the worktable can move along the X-axis and the Z-axis.

10. The rotary blade library mechanism of claim 8, wherein, The tool exchange device further comprises at least one tool holder rotating driving unit, which is arranged at one end of the X-axis driving unit slide and connected with the base part of the second sliding groove, so as to drive the tool holder locked in the second sliding groove to rotate around the X-axis.

Images