Multifunctional station synchronous tool changing mechanism

Abstract

The invention discloses a multifunctional station synchronous tool changing mechanism which comprises a workbench assembly and a spindle box assembly, a plurality of stations are arranged on the workbench assembly, a plurality of spindles are arranged on the spindle box assembly, a tool rest support is arranged on one side of the workbench assembly, a plurality of rotary tool rests are arranged on the tool rest support, and a plurality of rotary tool rests are arranged on the rotary tool rests. The tool rest support is provided with a rotation control mechanism used for controlling the multiple rotary tool rests to rotate at the same time, the rotary tool rests are provided with multiple layers of tool storage disc assemblies capable of synchronously rotating along with the rotary tool rests and adjusting the height relative to the rotary tool rests, and multiple layers of tool rotary discs are designed. The multi-spindle machine tool can be quickly moved to the position of the corresponding height layer according to selection, after ejection, a corresponding set of tools can be transferred to the position below the multi-spindle machine tool through the synchronous transferring mechanism to be synchronously installed, efficiency is higher, replacement is more convenient, more standby tools are selected, three-dimensional tool replacement is achieved, and the requirement for replacement of more types of tools is met.

Description

Technical Field

[0001] The invention relates to automatic tool changing equipment for numerically controlled machine tools, and in particular to a multifunctional synchronous tool changing mechanism for workstations. Background Art

[0002] When changing tools on CNC machine tools, tools need to be changed manually or automatically. The tool changing efficiency is low when changing tools on multiple spindles, and the tool reserve of the tool holder is small, which cannot meet more tool changing needs. Therefore, in response to the above problems, it is necessary to design a multifunctional synchronous tool changing device with multi-layer tool reserve, which can meet the needs of tool replacement of more models and realize automatic delivery of tools of corresponding layers.

[0003] Therefore, the existing automatic tool changing equipment of CNC machine tools needs further improvement. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional workstation synchronous tool changing mechanism, which can realize multi-layer tool storage and meet the replacement needs of more tools. It has a large capacity and can also position each group of tools and synchronously send them out to the bottom of the spindle for installation.

[0005] In order to achieve the above object, the present invention adopts the following scheme: The tool holder is provided with a plurality of rotating tool holders, and a plurality of rotating tool holders are provided on the tool holder. The synchronous transfer mechanism transfers multiple tools to the bottom of the spindle box assembly for subsequent installation.

[0006] Furthermore, the tool holder bracket includes a bottom plate, a middle plate and a top plate, a plurality of guide shafts are arranged between the bottom plate and the middle plate for connection, and a plurality of connecting rods are arranged between the middle plate and the top plate for connection.

[0007] Furthermore, the plurality of rotating tool holders are evenly distributed along the transverse direction of the middle plate; The rotating tool holder comprises a circular plate mounting seat, in which a rotating circular plate is rotatably arranged.

[0008] Furthermore, the rotation control mechanism comprises a worm mounting hole provided on the middle plate, the worm mounting hole and the circular plate mounting seat are connected, an adjusting worm is rotatably mounted in the worm mounting hole, a worm wheel is provided on the end surface of the rotating circular plate, and a plurality of the worm wheels and the adjusting worm are meshed for transmission; The bottom plate is provided with a motor bracket, the motor bracket is provided with a servo motor, and the output end of the servo motor is fixedly connected to the end face of the adjusting worm.

[0009] Furthermore, the multi-layer tool storage tray assembly includes multiple layers of tool trays, multiple telescopic shafts are arranged between the multiple tool trays, multiple telescopic shaft holes are arranged on the rotating circular plate, and the multiple telescopic shafts are respectively inserted into the multiple telescopic shaft holes.

[0010] Furthermore, the movable direction of the elastic movable tool fixing clamp is inclined; The elastic movable tool fixing clamp includes an inclined guide groove arranged on the tool disk, an inclined sliding block is movably arranged in the inclined guide groove, a tool C-shaped mounting seat is arranged in the inclined sliding block, a limiting structure is arranged between the inclined guide groove and the inclined sliding block, and an elastic structure for pressing the inclined sliding block outward is arranged between the inclined guide groove and the inclined sliding block.

[0011] Furthermore, the height control component includes a lifting cylinder arranged on the base plate, a synchronous lifting plate is arranged on the lifting cylinder, a plurality of synchronous circular grooves are arranged on the synchronous lifting plate, a synchronous circular plate is arranged between the lower ends of the plurality of telescopic shafts, a limiting annular groove is arranged on the inner wall of the synchronous circular groove for limiting the detachment of the synchronous circular plate, and the synchronous circular plate is rotatably installed in the limiting annular groove.

[0012] Further, the ejection mechanism includes a plurality of annular holes arranged on the top plate, an inner groove is arranged on the inner wall of the annular hole close to the workbench assembly, and a driving shaft is arranged on the inclined sliding block extending upward, and the driving shaft is close to the inner wall of the annular hole under the pressure of the elastic structure; When the driving shaft moves into the inner groove, the inclined sliding block is pushed outward.

[0013] Furthermore, the synchronous transfer mechanism includes a rotating shaft seat arranged on the front side of the rotating circular plate, a rotating shaft is rotatably installed in the rotating shaft seat, a swing rod is arranged at the upper end of the rotating shaft, a transfer C-shaped bayonet is arranged at the outer end of the swing rod, a plurality of the swing rods are arranged parallel to each other, a transverse push rod motor is arranged on the middle plate, a rack is arranged at the output end of the transverse push rod motor, a gear is arranged at the lower end of the rotating shaft, and the gear and the rack are meshed for transmission.

[0014] Furthermore, the transfer C-shaped bayonet is inserted into the groove of the outer wall of the tool during the swinging process, so that the tool is transferred from the tool C-shaped mounting seat to the transfer C-shaped bayonet and moved to the bottom of the corresponding spindle.

[0015] In summary, the present invention has the following beneficial effects compared with the prior art: The present invention solves the shortcomings of the existing automatic tool changing device. Through the structural setting of the present invention, it has the following advantages: a multi-layer tool turntable is designed, which can quickly move to the corresponding height layer position according to the selection, and the corresponding tools of the same group are automatically ejected outward through the ejection mechanism. After ejection, the corresponding group of tools can be transferred to the bottom of the multi-spindle machine tool through the synchronous transfer mechanism for synchronous installation. The efficiency is higher, the replacement is more convenient, the spare tools are more selected, the three-dimensional tool change is realized, and the replacement needs of more types of tools are met. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 A top view of the present invention; Figure 4 A three-dimensional diagram of a tool changing device of the present invention; Figure 5 It is one of the cross-sectional views of the tool changing device of the present invention; Figure 6 The second cross-sectional view of the tool changing device of the present invention; Figure 7 It is a schematic diagram of the cutter disc structure of the present invention; Figure 8 The third cross-sectional view of the tool changing device of the present invention; Fig. 9 for Figure 8 A partial enlarged view of point A. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-9 The present invention provides a multifunctional workstation synchronous tool changing mechanism, comprising a worktable assembly 1 and a spindle box assembly 2, wherein the worktable assembly 1 is provided with a plurality of workstations, the spindle box assembly 2 is provided with a plurality of spindles 3, a tool holder bracket 4 is provided on one side of the worktable assembly 1, a plurality of rotating tool holders 5 are provided on the tool holder bracket 4, a rotation control mechanism 6 for controlling the simultaneous rotation of the plurality of rotating tool holders 5 is provided on the tool holder bracket 4, and a rotating control mechanism 6 for controlling the simultaneous rotation of the plurality of rotating tool holders 5 is provided on the rotating tool holder 5, and a rotating tool holder 5 is provided with a rotating tool holder 5 which can rotate synchronously with the rotating tool holder 5 and can be height-controlled relative to the rotating tool holder 5 An adjustable multi-layer tool storage tray assembly 7, on which a plurality of elastic movable tool fixing clamps 8 are evenly distributed around the center of the multi-layer tool storage tray assembly 7, a height control assembly 9 for controlling the height adjustment of the plurality of multi-layer tool storage tray assemblies 7 is provided on the tool holder bracket 4, an ejection mechanism 10 for controlling the ejection of the plurality of elastic movable tool fixing clamps 8 close to one side of the workbench assembly 1 is provided on the tool holder bracket 4, and a synchronous transfer mechanism 11 for transferring the plurality of ejected tools is provided on the tool holder bracket 4; The synchronous transfer mechanism 11 transfers the multiple tools to the bottom of the spindle box assembly 2 for subsequent installation; The multi-layer tool storage tray assembly 7 is in three groups; the multi-layer tool storage tray assembly 7 is a multi-layer tool tray design; A plurality of elastic movable tool fixing clips 8 are arranged on each layer of the cutter disc; Pre-store the cutting tools at the corresponding positions of the elastic movable cutting tool fixing clamps 8 of each group of the multi-layer cutting tool storage tray assembly 7; Select different tools according to processing requirements and send them to the bottom of the spindle 3 for installation; The rotating tool holder 5 can drive a plurality of elastic movable tool fixing clamps 8 in the same height direction to rotate; Adjust the different elastic movable tool fixing clamps 8 close to the side of the synchronous transfer mechanism 11; during the adjustment process, the elastic movable tool fixing clamps 8 close to the synchronous transfer mechanism 11 will be ejected outward under the control of the ejection mechanism 10, so as to facilitate the synchronous transfer mechanism 11 to perform batch transfer; The height control component 9 can adjust the height position of the elastic movable tool fixing clamp 8 of each layer so that the elastic movable tool fixing clamp 8 of the corresponding layer is flush with the synchronous transfer mechanism 11, which facilitates the synchronous transfer mechanism 11 to transfer the tool on the corresponding side.

[0019] The tool holder support 4 of the present invention includes a bottom plate 401, a middle plate 402 and a top plate 403, a plurality of guide shafts 404 are provided between the bottom plate 401 and the middle plate 402 for connection, and a plurality of connecting rods 405 are provided between the middle plate 402 and the top plate 403 for connection.

[0020] The plurality of rotating tool holders 5 of the present invention are evenly distributed along the transverse direction of the middle plate 402; The rotating tool holder 5 includes a circular plate mounting seat 501 , and a rotating circular plate 502 is rotatably disposed in the circular plate mounting seat 501 .

[0021] The rotation control mechanism 6 of the present invention comprises a worm mounting hole 601 arranged on the middle plate 402, the worm mounting hole 601 is connected to the circular plate mounting seat 501, an adjusting worm 602 is rotatably mounted in the worm mounting hole 601, a worm wheel 603 is arranged on the end surface of the rotating circular plate 502, and a plurality of worm wheels 603 and the adjusting worm 602 are meshed for transmission; A motor bracket 604 is disposed on the bottom plate 401 , a servo motor 605 is disposed on the motor bracket 604 , and an output end of the servo motor 605 is fixedly connected to an end surface of the adjusting worm 602 .

[0022] The multi-layer tool storage tray assembly 7 of the present invention comprises a multi-layer tool tray 701, a plurality of telescopic shafts 702 are arranged between the plurality of tool trays 701, a plurality of telescopic shaft holes 703 are arranged on the rotating circular plate 502, and the plurality of telescopic shafts 702 are respectively inserted into the plurality of telescopic shaft holes 703.

[0023] The movable direction of the elastic movable tool fixing clamp 8 of the present invention is inclined; The elastic movable tool fixing clamp 8 comprises an inclined guide groove 801 arranged on the tool disc 701, an inclined sliding block 802 is movably arranged in the inclined guide groove 801, a tool C-shaped mounting seat 803 is arranged in the inclined sliding block 802, a limiting structure 805 is arranged between the inclined guide groove 801 and the inclined sliding block 802, and an elastic structure 804 for pressing the inclined sliding block 802 outward is arranged between the inclined guide groove 801 and the inclined sliding block 802; The elastic structure 804 keeps the tool C-shaped mounting seat 803 ejected outward, and the annular hole 101 is used to limit the ejection position of the tool C-shaped mounting seat 803, so that the tool C-shaped mounting seat 803 ejects outward when it is close to the position of the spindle box assembly 2.

[0024] The height control assembly 9 of the present invention comprises a lifting cylinder 901 disposed on the bottom plate 401, a synchronous lifting plate 902 is disposed on the lifting cylinder 901, a plurality of synchronous circular grooves 903 are disposed on the synchronous lifting plate 902, a synchronous circular plate 904 is disposed between the lower ends of the plurality of telescopic shafts 702, a limiting annular groove 905 for limiting the separation of the synchronous circular plate 904 is disposed on the inner wall of the synchronous circular groove 903, and the synchronous circular plate 904 is rotatably installed in the limiting annular groove 905; After the lifting cylinder 901 is started, it extends and retracts up and down, driving the synchronous lifting plate 902 to move up and down. The up and down movement of the synchronous lifting plate 902 drives the limiting annular groove 905 to move up and down. The limiting annular groove 905 drives the synchronous circular plate 904 to move up and down synchronously, so that the synchronous circular plate 904 can rotate in the limiting annular groove 905 and move up and down following the limiting annular groove 905.

[0025] The ejection mechanism 10 of the present invention comprises a plurality of annular holes 101 arranged on the top plate 403, an inner groove 102 is arranged on the inner wall of the annular hole 101 close to the workbench assembly 1, and a driving shaft 103 is arranged on the inclined sliding block 802 extending upward, and the driving shaft 103 is close to the inner wall of the annular hole 101 under the pressure of the elastic structure 804; When the driving shaft 103 moves into the inner groove 102 , the inclined sliding block 802 is pushed outward.

[0026] The synchronous transfer mechanism 11 described in the present invention includes a rotating shaft seat 111 arranged on the front side of the rotating circular plate 502, and a rotating shaft 112 is rotatably installed in the rotating shaft seat 111. A swing rod 113 is arranged at the upper end of the rotating shaft 112, and a transfer C-shaped bayonet 114 is arranged at the outer end of the swing rod 113. Multiple swing rods 113 are arranged parallel to each other, and a transverse push rod motor 115 is arranged on the middle plate 402. A rack 116 is arranged at the output end of the transverse push rod motor 115, and a gear 117 is arranged at the lower end of the rotating shaft 112. The gear 117 and the rack 116 are meshed for transmission.

[0027] The transfer C-shaped bayonet 114 of the present invention is inserted into the groove of the outer wall of the tool during the swinging process, so that the tool is transferred from the tool C-shaped mounting seat 803 to the transfer C-shaped bayonet 114 and moved to the bottom of the corresponding spindle 3.

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional workstation synchronous tool changing mechanism, comprising a worktable assembly (1) and a spindle box assembly (2), characterized in that: The workbench assembly (1) is provided with a plurality of workstations, the spindle box assembly (2) is provided with a plurality of spindles (3), a tool holder bracket (4) is provided on one side of the workbench assembly (1), a plurality of rotating tool holders (5) are provided on the tool holder bracket (4), a rotation control mechanism (6) for controlling the simultaneous rotation of the plurality of rotating tool holders (5) is provided on the tool holder bracket (4), a multi-layer tool storage tray assembly (7) is provided on the rotating tool holder (5) and can rotate synchronously with the rotating tool holder (5) and can be adjusted in height relative to the rotating tool holder (5), and the plurality of A plurality of elastic movable tool fixing clamps (8) are evenly distributed on the multi-layer tool storage tray assembly (7) around the center of the multi-layer tool storage tray assembly (7); a height control assembly (9) for controlling the height adjustment of the plurality of multi-layer tool storage tray assemblies (7) is arranged on the tool holder bracket (4); an ejection mechanism (10) for controlling the ejection of the plurality of elastic movable tool fixing clamps (8) near one side of the workbench assembly (1) is arranged on the tool holder bracket (4); and a synchronous transfer mechanism (11) for transferring the plurality of ejected tools is arranged on the tool holder bracket (4); The synchronous transfer mechanism (11) transfers the plurality of cutting tools to the bottom of the spindle box assembly (2) for subsequent installation.

2. A multifunctional synchronous tool changing mechanism for a workstation according to claim 1, characterized in that: The tool holder support (4) comprises a bottom plate (401), a middle plate (402) and a top plate (403); a plurality of guide shafts (404) are arranged between the bottom plate (401) and the middle plate (402) for connection; and a plurality of connecting rods (405) are arranged between the middle plate (402) and the top plate (403) for connection.

3. A multifunctional synchronous tool changing mechanism for a workstation according to claim 2, characterized in that: The plurality of rotating tool holders (5) are evenly distributed along the transverse direction of the middle plate (402); The rotating tool holder (5) comprises a circular plate mounting seat (501), and a rotating circular plate (502) is rotatably arranged in the circular plate mounting seat (501).

4. A multifunctional synchronous tool changing mechanism for a workstation according to claim 3, characterized in that: The rotation control mechanism (6) comprises a worm mounting hole (601) provided on the middle plate (402), the worm mounting hole (601) and the circular plate mounting seat (501) being arranged in communication, an adjusting worm (602) being rotatably mounted in the worm mounting hole (601), a worm wheel (603) being provided on the end surface of the rotating circular plate (502), and a plurality of the worm wheels (603) and the adjusting worm (602) being meshed and transmitted; A motor bracket (604) is provided on the bottom plate (401), a servo motor (605) is provided on the motor bracket (604), and an output end of the servo motor (605) is fixedly connected to an end face of the adjusting worm (602).

5. A multifunctional synchronous tool changing mechanism for a workstation according to claim 4, characterized in that: The multi-layer tool storage tray assembly (7) comprises a multi-layer tool tray (701), a plurality of telescopic shaft bodies (702) are arranged between the plurality of tool trays (701), a plurality of telescopic shaft holes (703) are arranged on the rotating circular plate (502), and the plurality of telescopic shaft bodies (702) are respectively inserted into the plurality of telescopic shaft holes (703).

6. A multifunctional synchronous tool changing mechanism for a workstation according to claim 5, characterized in that: The movable direction of the elastic movable tool fixing clamp (8) is inclined; The elastically movable tool fixing clamp (8) comprises an inclined guide groove (801) arranged on the tool disc (701), an inclined sliding block (802) movably arranged in the inclined guide groove (801), a tool C-shaped mounting seat (803) arranged in the inclined sliding block (802), a limiting structure (805) arranged between the inclined guide groove (801) and the inclined sliding block (802), and an elastic structure (804) for pressing the inclined sliding block (802) outwards arranged between the inclined guide groove (801) and the inclined sliding block (802).

7. A multifunctional synchronous tool changing mechanism for a workstation according to claim 6, characterized in that: The height control component (9) comprises a lifting cylinder (901) arranged on the bottom plate (401), a synchronous lifting plate (902) being arranged on the lifting cylinder (901), a plurality of synchronous circular grooves (903) being arranged on the synchronous lifting plate (902), a synchronous circular plate (904) being arranged between the lower ends of the plurality of telescopic shafts (702), a limiting annular groove (905) for limiting the detachment of the synchronous circular plate (904) being arranged on the inner wall of the synchronous circular groove (903), and the synchronous circular plate (904) being rotatably mounted in the limiting annular groove (905).

8. A multifunctional synchronous tool changing mechanism for a workstation according to claim 7, characterized in that: The ejection mechanism (10) comprises a plurality of annular holes (101) arranged on the top plate (403), an inner groove (102) being arranged on the inner wall of one side of the annular hole (101) close to the workbench assembly (1), and a drive shaft (103) being arranged extending upward from the inclined sliding block (802), and the drive shaft (103) being close to the inner wall of the annular hole (101) under the pressure of the elastic structure (804); When the driving shaft (103) moves into the inner groove (102), the inclined sliding block (802) is pushed outward.

9. A multifunctional synchronous tool changing mechanism for a workstation according to claim 8, characterized in that: The synchronous transfer mechanism (11) comprises a rotating shaft seat (111) arranged on the front side of the rotating circular plate (502), a rotating shaft (112) being rotatably mounted in the rotating shaft seat (111), a swinging rod (113) being arranged at the upper end of the rotating shaft (112), a transfer C-shaped bayonet (114) being arranged at the outer end of the swinging rod (113), a plurality of the swinging rods (113) being arranged parallel to each other, a lateral push rod motor (115) being arranged on the middle plate (402), a rack (116) being arranged at the output end of the lateral push rod motor (115), a gear (117) being arranged at the lower end of the rotating shaft (112), and the gear (117) and the rack (116) being meshed for transmission.

10. A multifunctional synchronous tool changing mechanism for a workstation according to claim 9, characterized in that: The transfer C-shaped bayonet (114) is engaged with the groove on the outer wall of the tool during the swinging process, so that the tool is transferred from the tool C-shaped mounting seat (803) to the transfer C-shaped bayonet (114) and moved to the bottom of the corresponding spindle (3).

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