CN117415656B - Tool bit switching device of CNC machining center - Google Patents
Tool bit switching device of CNC machining center Download PDFInfo
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- CN117415656B CN117415656B CN202311664661.XA CN202311664661A CN117415656B CN 117415656 B CN117415656 B CN 117415656B CN 202311664661 A CN202311664661 A CN 202311664661A CN 117415656 B CN117415656 B CN 117415656B
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- 230000017105 transposition Effects 0.000 claims description 57
- 238000009434 installation Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention discloses a tool bit switching device of a CNC machining center, which belongs to the technical field of numerical control machining and comprises a bottom plate, wherein a switching support plate is fixedly arranged on the bottom plate, a calling component and a switching component are arranged on the bottom plate, the switching component comprises 2T-shaped switching plates, the calling component can store a large number of machining tools, when the machining tools are damaged or other machining tools are required to be replaced, the calling of a drill chuck tool holder for placing the required machining tools can be quickly realized, through the arrangement of 2 hydraulic clamping spindles, when the drill chuck tool holder in 1 hydraulic clamping spindle cannot be taken out, the other hydraulic clamping spindle can continue to work without closing equipment, and the quick replacement of the machining tools can be realized without manual assistance through the mutual cooperation of the calling component and the switching component.
Description
Technical Field
The invention relates to the technical field of numerical control machining, in particular to a tool bit switching device of a CNC machining center.
Background
The CNC index control machine tool is programmed by numerical control machining language, CNC machining center can once only accomplish the processing to the work piece, but when processing, need more processing cutter to cooperate, just can once only accomplish the processing to the work piece, so usually need tool bit switching device to realize the change of processing cutter, but current tool bit switching device still need the manual work to assist just can realize the switching of tool bit.
The chinese patent application with publication number CN113001229B discloses a quick semiautomatic replacing device for tool bits of a numerical control machine, and the above patent can realize the replacement of the tool bits, but any manual assistance is required, and when the tool bits cannot be taken out, the equipment needs to be closed for maintenance, and subsequent machining and replacement cannot be performed, thereby affecting the machining efficiency, so the invention provides a tool bit switching device for a CNC machining center.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a tool bit switching device of a CNC machining center, which solves the problems that the machining efficiency is affected because the tool bit switching device is manually assisted, and when the tool bit cannot be taken out, equipment is required to be closed for maintenance and subsequent machining and replacement cannot be performed.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a CNC machining center's tool bit auto-change over device, including the bottom plate, fixed mounting has the switching backup pad on the bottom plate, be provided with the calling component on the bottom plate, the calling component is including calling the annular plate, it installs the ring gear to call to rotate on the ring gear, even rotation is installed a plurality of transposition annular plates on the ring gear to call, even fixed being provided with a plurality of seats of placing on the transposition annular plate, place the seat and be used for placing the drill chuck handle of a knife, still be provided with the switching component on the bottom plate, the switching component includes 2T shape switching plates, all rotate on the T shape switching plate and install hydraulic clamping main shaft, hydraulic clamping main shaft's tip all activity is provided with the drill chuck handle of a knife, it installs the switching rotating plate to rotate in the switching backup pad, the both sides of switching rotating plate all are provided with a plurality of gag lever posts, be provided with a plurality of and gag lever post complex slotted holes on the T shape switching plate, slidable mounting has the feed slide on the switching backup pad, fixedly on the feed slide is provided with the arc slat, all be provided with arc chute with arc slat complex on the T shape switching plate.
Further, the transfer ring plate is rotatably provided with a transposition gear, the transposition ring plate is fixedly provided with transposition toothed rings, a gear pair is formed when the transposition gear and the transposition toothed rings are connected, the transfer ring plate is slidably provided with a plurality of limiting sliding plates, the limiting sliding plates are fixedly provided with limiting arc racks, and the limiting arc racks and the corresponding transposition toothed rings form a gear-rack pair when being connected.
Further, the lower surface fixing of spacing slide is provided with spacing ball, and fixed mounting has the Z shape push pedal on the calling ring board, and the Z shape push pedal is used for promoting spacing ball removal, is provided with the ring channel on the drill chuck handle of a knife, and the fixed a plurality of fan-shaped screens boards that are provided with on the calling ring board, fan-shaped screens board are used for restricting the position of placing the drill chuck handle of a knife of placing on the seat, and the axis of fan-shaped screens board and the axis of corresponding transposition ring board are on same straight line.
Further, a transfer electric cylinder is fixedly arranged on the calling ring plate, a transfer motor is fixedly arranged at the end of a piston rod of the transfer electric cylinder, a transfer slat is fixedly arranged on an output shaft of the transfer motor, and a three-jaw clamping cylinder is fixedly arranged at the end part of the transfer slat.
Further, a feed screw is rotatably arranged on the bottom plate, the feed screw and the feed slide plate form a screw pair, a gear box is fixedly arranged on the T-shaped switching plate, one end of the gear box is fixedly connected with a corresponding hydraulic clamping main shaft, a transmission circular block is fixedly arranged at the other end of the gear box, a driving motor is fixedly arranged on the feed slide plate, an arc-shaped rotating plate is fixedly arranged on an output shaft of the driving motor, and arc-shaped sliding grooves matched with the arc-shaped rotating plate are formed in the transmission circular block.
Further, a fan-shaped annular plate is fixedly arranged on the bottom plate, the axis of the fan-shaped annular plate and the axis of the switching rotating plate are on the same straight line, and arc-shaped sliding grooves matched with the fan-shaped annular plate are formed in the T-shaped switching plate.
Further, the support bottom plate is slidably mounted on the feeding slide plate, 2 fixed short rods are fixedly arranged on the support bottom plate, 2 through holes matched with the fixed short rods are formed in the T-shaped switching plate, the fixed short rods are used for limiting the position of the T-shaped switching plate, the pressing strip plate is fixedly mounted on the support bottom plate, a spring is arranged between the pressing strip plate and the feeding slide plate, and the T-shaped limiting plate is fixedly arranged on the switching support plate.
Further, a switching electric cylinder is fixedly installed on the switching support plate, an auxiliary cylinder is fixedly installed at the end of a piston rod of the switching electric cylinder, an auxiliary motor is fixedly installed in the auxiliary cylinder, an installation rotating plate is fixedly installed on an output shaft of the auxiliary motor in the auxiliary cylinder, fan-shaped notches are formed in two ends of the installation rotating plate, and limiting sliding strips are slidably installed at two ends of the installation rotating plate.
Compared with the prior art, the invention has the beneficial effects that: (1) According to the invention, by arranging the calling component, a large number of machining tools can be stored, and when the machining tools are damaged or other machining tools are required to be replaced, the calling of the drill chuck tool holder with the required machining tools can be rapidly realized. (2) According to the invention, by arranging the 2 hydraulic clamping spindles, when the drill chuck knife handle in the 1 hydraulic clamping spindle cannot be taken out, the device does not need to be closed for maintenance, and the other hydraulic clamping spindle can continue to work. (3) According to the invention, through the mutual matching of the calling component and the switching component, the quick replacement of the processing cutter can be realized without the assistance of manpower.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of a switching component according to the present invention.
Fig. 3 is an enlarged partial schematic view at a in fig. 2.
Fig. 4 is a side view of the switching assembly of the present invention.
Fig. 5 is a partially enlarged schematic view at B in fig. 4.
FIG. 6 is a schematic diagram of a calling component of the present invention.
Fig. 7 is an enlarged partial schematic view at C in fig. 6.
Fig. 8 is a schematic diagram of the structure of the calling ring gear of the present invention.
Fig. 9 is a partially enlarged schematic view of fig. 8 at D.
Fig. 10 is a partially enlarged schematic illustration at E in fig. 8.
FIG. 11 is a front view of a calling assembly of the present invention.
Fig. 12 is a partially enlarged schematic view of fig. 11 at F.
Fig. 13 is a schematic view of the structure of the limiting arc rack of the present invention.
Fig. 14 is a partially enlarged schematic view at G in fig. 13.
Reference numerals: 101-a bottom plate; 102-switching the support plate; 103-feeding a screw rod; 104-a feed motor; 105-calling a ring plate; 106-calling a toothed ring; 107-hydraulic clamping spindle; 108-a drill chuck shank; 109-feed slide; 110-switching the motor; 111-switching the rotating plate; 112-a limit rod; 113-sector ring plates; 114-T-shaped switching board; 115-a gearbox; 116-supporting the bottom plate; 117-fixed stubs; 118-a drive motor; 119-driving round blocks; 120-arc rotating plates; 121-arcuate strips; 122-T-shaped limiting plates; 123-pressing the lath; 124-call a motor; 125-call gear; 126-transposition ring plate; 127-placing seat; 128-sector detent plates; 129-transfer flights; 130-transposition toothed ring; 131-three-jaw clamping cylinder; 132-transferring an electric cylinder; 133-a transfer motor; 134-transposition gear; 135-transposition motor; 136-limiting arc racks; 137-limit sliding plates; 138-limiting ball; 139-Z push plate; 140-switching the electric cylinder; 141-an auxiliary cylinder; 142-mounting a rotating plate; 143-limit slide bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Examples: referring to fig. 1-14, a tool bit switching device of a CNC machining center includes a base plate 101, the base plate 101 is fixedly installed inside the CNC machining center, a switching support plate 102 is fixedly installed on the base plate 101, a calling component is arranged on the base plate 101, the calling component includes a calling ring plate 105, the calling ring plate 105 is fixedly installed on the base plate 101, a calling toothed ring 106 and a calling gear 125 are rotatably installed on the calling ring plate 105, the calling toothed ring 106 and the calling gear 125 are meshed to form a gear pair, a calling motor 124 is fixedly installed on the calling ring plate 105, and an output shaft of the calling motor 124 is fixedly connected with the calling gear 125.
A plurality of transposition ring plates 126 are uniformly rotatably arranged on the calling toothed ring 106, friction force exists between the transposition ring plates 126 and the calling toothed ring 106, a plurality of placing seats 127 are uniformly and fixedly arranged on the transposition ring plates 126, the placing seats 127 are used for placing the drill chuck tool handles 108, different tool bits are clamped on the drill chuck tool handles 108, a transposition gear 134 is rotatably arranged on the calling ring plates 105, transposition toothed rings 130 are fixedly arranged on the transposition ring plates 126, a gear pair is formed when the transposition gear 134 and the transposition toothed rings 130 are connected, a transposition motor 135 is fixedly arranged on the lower surface of the calling ring plates 105, and an output shaft of the transposition motor 135 is fixedly connected with the transposition gear 134.
The transfer ring plate 105 is provided with a plurality of limit sliding plates 137 in a sliding manner, springs are arranged between the limit sliding plates 137 and the transfer ring plate 105, limit arc racks 136 are fixedly arranged on the limit sliding plates 137, gear rack pairs are formed when the limit arc racks 136 are connected with corresponding transposition toothed rings 130, limit balls 138 are fixedly arranged on the lower surface of the limit sliding plates 137, Z-shaped push plates 139 are fixedly arranged on the transfer ring plate 105, and the Z-shaped push plates 139 are used for pushing the limit balls 138 to move.
The drill chuck shank 108 is provided with an annular groove, the calling ring plate 105 is fixedly provided with a plurality of sector-shaped clamping plates 128, the sector-shaped clamping plates 128 are used for limiting the position of the drill chuck shank 108 placed on the placing seat 127, and the axes of the sector-shaped clamping plates 128 and the axes of the corresponding transposition ring plates 126 are on the same straight line.
In the initial position, the limiting arc racks 136 are all engaged with the corresponding transposition toothed rings 130, i.e. the transposition toothed rings 130 cannot rotate freely at this time, the annular grooves on the drill chuck tool shanks 108 on the placing seat 127 are all engaged with the corresponding sector-shaped clamping plates 128, and the drill chuck tool shanks 108 on the placing seat 127 are prevented from falling under the action of the sector-shaped clamping plates 128.
According to the position of the tool bit to be used, the invoking motor 124 is started to drive the invoking gear 125 to rotate, so that the invoking toothed ring 106 rotates, and then the transposition ring plate 126 with the tool bit to be used is moved to the position closest to the transposition gear 134, at this time, the transposition toothed ring 130 is engaged with the transposition gear 134, and due to friction between the transposition ring plate 126 and the invoking toothed ring 106, when the transposition toothed ring 130 is engaged with the transposition gear 134, the transposition toothed ring 130 cannot rotate, the transposition toothed ring 130 drives the transposition gear 134 to rotate, and further the displacement generated when the transposition toothed ring 130 is engaged with the transposition gear 134 is avoided, so that the transposition ring plate 126 rotates.
When the transposition ring plate 126 with the bit to be used placed rotates in a direction approaching to the transposition gear 134, the limiting ball 138 contacts the surface of the Z-shaped push plate 139, the limiting ball 138 moves from the surface closest to the bottom plate 101 on the contact Z-shaped push plate 139 to the surface farthest from the bottom plate 101 on the contact Z-shaped push plate 139, that is, the limiting ball 138 moves upwards, the limiting arc rack 136 and the limiting slide plate 137 move upwards synchronously, the spring between the limiting slide plate 137 and the bottom plate 101 is compressed, the transposition toothed ring 130 on the transposition ring plate 126 is disengaged from the limiting arc rack 136, at the moment, the transposition motor 135 is started to drive the transposition gear 134 to rotate, and then the transposition toothed ring 130 is driven to rotate, that is, the transposition ring plate 126 is rotated, and then the bit to be used on the transposition ring plate 126 is moved to the position closest to the axis of the calling ring plate 105, that is the drill chuck handle 108 holding the bit to be used is disengaged from the position closest to the axis of the calling ring plate 105, and the drill chuck handle 108 is disengaged from the contact with the fan-shaped clamping plate 128.
A transfer electric cylinder 132 is fixedly arranged on the calling ring plate 105, a transfer motor 133 is fixedly arranged at the piston rod end of the transfer electric cylinder 132, a transfer slat 129 is fixedly arranged on the output shaft of the transfer motor 133, and a three-jaw clamping cylinder 131 is fixedly arranged at the end part of the transfer slat 129.
The drill chuck shank 108 provided with the bit to be taken out is moved to the position right below the three-jaw clamping cylinder 131, at this time, the drill chuck shank 108 is separated from contact with the sector clamping plate 128, the transfer cylinder 132 is started to drive the transfer motor 133 to move downwards, namely, the transfer slat 129 and the three-jaw clamping cylinder 131 synchronously move downwards, the drill chuck shank 108 is clamped under the action of the three-jaw clamping cylinder 131, after the three-jaw clamping cylinder 131 is clamped, the transfer cylinder 132 is started to separate the drill chuck shank 108 from contact with the placing seat 127, the transfer motor 133 is started to drive the transfer slat 129 to rotate, and then the drill chuck shank 108 is rotated, namely, the drill chuck shank 108 is moved to the outer side under the action of the three-jaw clamping cylinder 131.
The bottom plate 101 is provided with a switching assembly, the switching assembly comprises 2T-shaped switching plates 114, the T-shaped switching plates 114 are rotatably provided with hydraulic clamping spindles 107, the end parts of the hydraulic clamping spindles 107 are movably provided with drill chuck tool handles 108, the drill chuck tool handles 108 are fixed through the hydraulic clamping spindles 107, the switching support plates 102 are rotatably provided with switching rotating plates 111, the switching support plates 102 are fixedly provided with switching motors 110, output shafts of the switching motors 110 are fixedly connected with the switching rotating plates 111, two sides of the switching rotating plates 111 are provided with a plurality of limiting rods 112, the T-shaped switching plates 114 are provided with a plurality of slotted holes matched with the limiting rods 112, the switching support plates 102 are slidably provided with feeding slide plates 109, the bottom plate 101 is rotatably provided with feeding screw rods 103, the feeding screw rods 103 and the feeding slide plates 109 form screw pairs, the feeding motor 104 is fixedly arranged on the switching support plates 102, output shafts of the feeding motor 104 are fixedly connected with the feeding screw rods 103, the arc-shaped slat 121 are fixedly arranged on the feeding slide plates 109, and arc-shaped slide grooves matched with the arc-shaped slat 121 are respectively arranged on the T-shaped switching plates 114.
The T-shaped switching plate 114 is fixedly provided with a gear box 115, one end of the gear box 115 is fixedly connected with a corresponding hydraulic clamping main shaft 107, the other end of the gear box 115 is fixedly provided with a transmission circular block 119, the feeding slide plate 109 is fixedly provided with a driving motor 118, the output shaft of the driving motor 118 is fixedly provided with an arc-shaped rotating plate 120, the transmission circular block 119 is provided with arc-shaped sliding grooves matched with the arc-shaped rotating plate 120, the bottom plate 101 is fixedly provided with a fan-shaped annular plate 113, the axis of the fan-shaped annular plate 113 and the axis of the switching rotating plate 111 are on the same straight line, and the T-shaped switching plate 114 is provided with arc-shaped sliding grooves matched with the fan-shaped annular plate 113.
The feeding slide plate 109 is slidably provided with a supporting bottom plate 116, 2 fixed short rods 117 are fixedly arranged on the supporting bottom plate 116, 2 through holes matched with the fixed short rods 117 are formed in the T-shaped switching plate 114, the fixed short rods 117 are used for limiting the position of the T-shaped switching plate 114, the supporting bottom plate 116 is fixedly provided with a pressing slat 123, a spring is arranged between the pressing slat 123 and the feeding slide plate 109, and the T-shaped limiting plate 122 is fixedly arranged on the switching support plate 102.
The switching support plate 102 is fixedly provided with a switching electric cylinder 140, an auxiliary cylinder 141 is fixedly arranged at the end of a piston rod of the switching electric cylinder 140, an auxiliary motor is fixedly arranged in the auxiliary cylinder 141, an installation rotating plate 142 is fixedly arranged on an output shaft of the auxiliary motor in the auxiliary cylinder 141, fan-shaped notches are arranged at two ends of the installation rotating plate 142, limit sliding strips 143 are slidably arranged at two ends of the installation rotating plate 142, springs are arranged between the limit sliding strips 143 and the installation rotating plate 142, and the end parts of the limit sliding strips 143 are composed of 2 inclined planes.
In the initial position, the T-shaped switching plate 114 nearest to the bottom plate 101 is engaged with the arc-shaped slat 121, the T-shaped switching plate 114 farthest from the bottom plate 101 is engaged with the sector ring plate 113, the T-shaped switching plate 114 farthest from the bottom plate 101 is engaged with the limit lever 112 on the switching rotating plate 111, the T-shaped switching plate 114 farthest from the bottom plate 101 is in a vertically upward state under the action of the switching rotating plate 111, the limit lever 112 and the sector ring plate 113, the position of the T-shaped switching plate 114 farthest from the bottom plate 101 is not shifted, the T-shaped switching plate 114 nearest to the bottom plate 101 is also engaged with the fixed short lever 117, at this time, the spring between the pressing slat 123 and the feed slide plate 109 is not compressed, and the T-shaped switching plate 114 nearest to the bottom plate 101 is not in contact with the limit lever 112 on the switching rotating plate 111, i.e., at this time, the T-shaped switching plate 114 nearest to the bottom plate 101 outputs a vertically downward state.
Under the action of the fixed short rod 117 and the arc-shaped slat 121, the T-shaped switching plate 114 closest to the bottom plate 101 is in a fixed state, a transmission round block 119 and the arc-shaped rotating plate 120 on the T-shaped switching plate 114 are in an engaged state, a driving motor 118 is started to drive the arc-shaped rotating plate 120 to rotate, the transmission round block 119 synchronously rotates, under the action of a gear box 115, the hydraulic clamping main shaft 107 rotates, namely, the tool bit clamped by the drill chuck tool shank 108 at the lower end of the hydraulic clamping main shaft 107 rotates, the feeding motor 104 is started to drive the feeding screw 103 to rotate, the feeding sliding plate 109 moves downwards, and the T-shaped switching plate 114 synchronously moves downwards, namely, the tool bit clamped by the drill chuck tool shank 108 performs work feeding.
When different bits are required to be replaced, the invoking motor 124 and the transposition motor 135 are started, the drill chuck cutter handle 108 with the bit to be used is moved to a position closest to the axis of the invoking ring plate 105, the hydraulic clamping main shaft 107 farthest from the bottom plate 101 is started to loosen the clamping of the drill chuck cutter handle 108 on the hydraulic clamping main shaft 107, the auxiliary motor in the auxiliary cylinder 141 is started to drive the installation rotary plate 142 to rotate, further, the fan-shaped notches at the two ends of the installation rotary plate 142 are respectively connected with the drill chuck cutter handle 108 on the hydraulic clamping main shaft 107 and the annular groove on the drill chuck cutter handle 108 with the bit to be used, when the drill chuck cutter handle 108 contacts with the inclined plane on the limit slide 143, the limit slide 143 is moved to a direction close to the auxiliary cylinder 141, the spring between the limit slide 143 and the installation rotary plate 142 is compressed, when the fan-shaped notches at the two ends of the installation rotary plate 142 are completely connected with the drill chuck cutter handle 108, the limit slide 143 is separated from the fan-shaped notches at the two ends of the installation rotary plate 142, the limit slide 143 returns to the initial position under the action of the spring between the limit slide 143 and the installation rotary plate 142, and the limit slide 143 limits the limit slide 143 to the limit slide 108 under the action of the limit slide 108.
Then, the switching cylinder 140 is started to drive the auxiliary cylinder 141 to move upwards, namely the mounting rotary plate 142 is moved upwards, so that the drill chuck tool handles 108 clamped at the two ends of the mounting rotary plate 142 are moved upwards, then the auxiliary motor in the auxiliary cylinder 141 is started to drive the mounting rotary plate 142 to rotate 180 degrees, the switching cylinder 140 is started to drive the mounting rotary plate 142 to move upwards, the 2 drill chuck tool handles 108 on the mounting rotary plate 142 are respectively placed on the hydraulic clamping main shaft 107 and the placing seat 127, then the hydraulic clamping main shaft 107 is started to fix the drill chuck tool handles 108, the auxiliary motor in the auxiliary cylinder 141 is started to drive the mounting rotary plate 142 to rotate reversely, and the mounting rotary plate 142 is separated from contact with the drill chuck tool handles 108 under the action of the inclined plane of the limiting slide 143.
The feed motor 104 is started to drive the feed screw 103 to rotate, the feed slide plate 109 moves upwards, the pressing slat 123 contacts the lower surface of the T-shaped limiting plate 122, the feed slide plate 109 continues to move upwards, the pressing slat 123 cannot continue to move upwards under the action of the T-shaped limiting plate 122, a spring between the pressing slat 123 and the feed slide plate 109 is compressed, the T-shaped switching plate 114 continues to move upwards under the action of the arc slat 121, the T-shaped switching plate 114 is engaged with the limiting rod 112 on the switching plate 111, namely the supporting bottom plate 116 and the fixed short rod 117 move in a direction away from the T-shaped switching plate 114, finally the fixed short rod 117 is separated from the engagement with the T-shaped switching plate 114, at this time, the axis of the arc slat 121 and the axis of the sector ring plate 113 are on the same straight line, and the driving motor 118 is started to drive the arc-shaped switching plate 120 to rotate, and the axis of the arc-shaped switching plate 120 and the axis of the sector ring plate 113 are on the same straight line.
Then, the switching motor 110 is started to drive the switching rotating plate 111 to rotate, under the action of the limiting rod 112, the 2T-shaped switching plates 114 rotate on the sector ring plate 113 and the arc-shaped slat 121, the positions of the T-shaped switching plates 114 cannot deviate under the action of the sector ring plate 113 and the arc-shaped slat 121, and finally the switching rotating plate 111 rotates 180 degrees, namely the drill chuck knife handle 108 with the use belt head is moved to the lowest end, and the position of the 2T-shaped switching plates 114 is switched.
Working principle: when the tool bit on the drill chuck shank 108 nearest to the bottom plate 101 is in operation, the invoking motor 124 and the transposition motor 135 are started to enable the drill chuck shank 108 on which the tool bit to be used is placed to be moved to a position nearest to the axis of the invoking ring plate 105, the switching cylinder 140 and the auxiliary motor in the auxiliary cylinder 141 are started to adjust the position of the mounting rotating plate 142, and therefore the drill chuck shank 108 clamped on the hydraulic clamping main shaft 107 farthest from the bottom plate 101 is replaced.
When a cutter head needs to be replaced, the feeding motor 104 is started to enable the feeding slide plate 109 to move to the position farthest from the bottom plate 101, a spring between the pressing slat 123 and the feeding slide plate 109 is compressed, the fixed short rod 117 is separated from being engaged with the T-shaped switching plate 114 nearest to the bottom plate 101, the T-shaped switching plate 114 nearest to the bottom plate 101 is engaged with the limiting rod 112, the switching motor 110 is started to drive the switching plate 111 to rotate, the 2T-shaped switching plates 114 are rotated on the sector ring plate 113 and the arc slat 121, the drill chuck handle 108 with the cutter head to be used is rotated to the lowest end, namely replacement of the cutter head is achieved, when the T-shaped switching plate 114 is rotated to the vertical upward position, the steps are repeated, and the next cutter head to be used is mounted on the hydraulic clamping main shaft 107 on the T-shaped switching plate 114.
When the replaced tool bit is damaged, the three-jaw clamping cylinder 131, the transfer cylinder 132 and the transfer motor 133 are started to clamp and take out the drill chuck handle 108 clamping the tool bit, so that the damaged tool bit can be replaced conveniently.
The invention is not limited to the above embodiments, and from the above concepts, those skilled in the art will appreciate that various modifications can be made without inventive effort, which fall within the scope of the invention.
Claims (2)
1. The utility model provides a CNC machining center's tool bit auto-change over device, includes bottom plate (101), and fixed mounting has on bottom plate (101) to switch backup pad (102), its characterized in that:
the drill chuck is characterized in that a calling component is arranged on the bottom plate (101), the calling component comprises a calling ring plate (105), a calling toothed ring (106) is rotatably arranged on the calling ring plate (105), a plurality of transposition ring plates (126) are uniformly rotatably arranged on the calling toothed ring (106), a plurality of placing seats (127) are uniformly and fixedly arranged on the transposition ring plates (126), and the placing seats (127) are used for placing drill chuck tool handles (108);
the automatic drilling machine is characterized in that a switching assembly is further arranged on the bottom plate (101), the switching assembly comprises 2T-shaped switching plates (114), hydraulic clamping spindles (107) are rotatably arranged on the T-shaped switching plates (114), drill chuck tool handles (108) are movably arranged at the ends of the hydraulic clamping spindles (107), a switching rotating plate (111) is rotatably arranged on a switching supporting plate (102), a plurality of limiting rods (112) are arranged on two sides of the switching rotating plate (111), a plurality of slotted holes matched with the limiting rods (112) are formed in the T-shaped switching plates (114), a feeding sliding plate (109) is slidably arranged on the switching supporting plate (102), arc-shaped slats (121) are fixedly arranged on the feeding sliding plate (109), and arc-shaped sliding grooves matched with the arc-shaped slats (121) are formed in the T-shaped switching plates (114);
the transfer ring plate (105) is rotatably provided with a transposition gear (134), the transposition ring plates (126) are fixedly provided with transposition toothed rings (130), a gear pair is formed when the transposition gear (134) and the transposition toothed rings (130) are connected, the transfer ring plate (105) is slidably provided with a plurality of limit sliding plates (137), the limit sliding plates (137) are fixedly provided with limit arc racks (136), and the limit arc racks (136) and the corresponding transposition toothed rings (130) form a gear rack pair when being connected;
the lower surface of the limiting sliding plate (137) is fixedly provided with a limiting ball (138), the calling ring plate (105) is fixedly provided with a Z-shaped push plate (139), the Z-shaped push plate (139) is used for pushing the limiting ball (138) to move, the drill chuck tool holder (108) is provided with an annular groove, the calling ring plate (105) is fixedly provided with a plurality of fan-shaped clamping plates (128), the fan-shaped clamping plates (128) are used for limiting the positions of the drill chuck tool holder (108) placed on the placing seat (127), and the axes of the fan-shaped clamping plates (128) and the axes of the corresponding transposition ring plates (126) are on the same straight line;
the feeding screw (103) is rotatably arranged on the bottom plate (101), the feeding screw (103) and the feeding sliding plate (109) form a screw pair, the T-shaped switching plate (114) is fixedly provided with a gear box (115), one end of the gear box (115) is fixedly connected with a corresponding hydraulic clamping main shaft (107), the other end of the gear box (115) is fixedly provided with a transmission round block (119), the feeding sliding plate (109) is fixedly provided with a driving motor (118), the output shaft of the driving motor (118) is fixedly provided with an arc-shaped rotating plate (120), and the transmission round block (119) is provided with an arc-shaped sliding groove matched with the arc-shaped rotating plate (120);
a sector ring plate (113) is fixedly arranged on the bottom plate (101), the axis of the sector ring plate (113) and the axis of the switching rotating plate (111) are on the same straight line, and arc-shaped sliding grooves matched with the sector ring plate (113) are formed in the T-shaped switching plate (114);
the feeding slide plate (109) is provided with a supporting bottom plate (116) in a sliding manner, 2 fixed short rods (117) are fixedly arranged on the supporting bottom plate (116), 2 through holes matched with the fixed short rods (117) are formed in the T-shaped switching plate (114), the fixed short rods (117) are used for limiting the position of the T-shaped switching plate (114), the supporting bottom plate (116) is fixedly provided with a pressing slat (123), a spring is arranged between the pressing slat (123) and the feeding slide plate (109), and a T-shaped limiting plate (122) is fixedly arranged on the switching support plate (102);
the automatic switching device is characterized in that a switching electric cylinder (140) is fixedly installed on the switching support plate (102), an auxiliary cylinder (141) is fixedly installed at the end of a piston rod of the switching electric cylinder (140), an auxiliary motor is fixedly installed in the auxiliary cylinder (141), an installation rotating plate (142) is fixedly installed on an output shaft of the auxiliary motor in the auxiliary cylinder (141), fan-shaped notches are formed in two ends of the installation rotating plate (142), and limiting sliding strips (143) are slidably installed at two ends of the installation rotating plate (142).
2. The tool bit switching device of a CNC machining center according to claim 1, wherein: transfer electric cylinder (132) is fixedly mounted on the calling ring plate (105), a transfer motor (133) is fixedly mounted at the end of a piston rod of the transfer electric cylinder (132), a transfer slat (129) is fixedly mounted on an output shaft of the transfer motor (133), and a three-jaw clamping cylinder (131) is fixedly mounted at the end of the transfer slat (129).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311664661.XA CN117415656B (en) | 2023-12-06 | 2023-12-06 | Tool bit switching device of CNC machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311664661.XA CN117415656B (en) | 2023-12-06 | 2023-12-06 | Tool bit switching device of CNC machining center |
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| Publication Number | Publication Date |
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| CN117415656A CN117415656A (en) | 2024-01-19 |
| CN117415656B true CN117415656B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311664661.XA Active CN117415656B (en) | 2023-12-06 | 2023-12-06 | Tool bit switching device of CNC machining center |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837070A (en) * | 1971-10-06 | 1974-09-24 | Toyoda Machine Works Ltd | Automatic tool change apparatus |
| CN1511675A (en) * | 2002-12-05 | 2004-07-14 | 格鲁博-工厂布克哈特格鲁博E.K. | Machine tool |
| CN113001230A (en) * | 2021-04-19 | 2021-06-22 | 罗嘉豪 | Automatic tool changing device of intelligent manufacturing automatic machine tool |
| CN114952373A (en) * | 2022-06-13 | 2022-08-30 | 安庆中船动力配套有限公司 | Connecting rod combined machining tool convenient for replacing cutter |
| CN115464447A (en) * | 2022-09-29 | 2022-12-13 | 浙江劲帆机床科技有限公司 | Double-spindle drilling and tapping center capable of changing tools without rotating continuously |
-
2023
- 2023-12-06 CN CN202311664661.XA patent/CN117415656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837070A (en) * | 1971-10-06 | 1974-09-24 | Toyoda Machine Works Ltd | Automatic tool change apparatus |
| CN1511675A (en) * | 2002-12-05 | 2004-07-14 | 格鲁博-工厂布克哈特格鲁博E.K. | Machine tool |
| CN113001230A (en) * | 2021-04-19 | 2021-06-22 | 罗嘉豪 | Automatic tool changing device of intelligent manufacturing automatic machine tool |
| CN114952373A (en) * | 2022-06-13 | 2022-08-30 | 安庆中船动力配套有限公司 | Connecting rod combined machining tool convenient for replacing cutter |
| CN115464447A (en) * | 2022-09-29 | 2022-12-13 | 浙江劲帆机床科技有限公司 | Double-spindle drilling and tapping center capable of changing tools without rotating continuously |
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|---|---|
| CN117415656A (en) | 2024-01-19 |
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