CN115194526B - Multi-station vertical tool rest for milling of numerical control machine tool - Google Patents
Multi-station vertical tool rest for milling of numerical control machine tool Download PDFInfo
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- CN115194526B CN115194526B CN202210850937.2A CN202210850937A CN115194526B CN 115194526 B CN115194526 B CN 115194526B CN 202210850937 A CN202210850937 A CN 202210850937A CN 115194526 B CN115194526 B CN 115194526B
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- 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
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
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- 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
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
- B23Q2003/15527—Storage devices; Drive mechanisms therefor the storage device including means to latch tools
Abstract
The invention relates to the technical field of tool rests, and discloses a multi-station vertical tool rest for milling of a numerical control machine tool, which comprises a tool mounting plate for placing a tool, wherein a tool placing groove matched with the tool is formed in the tool mounting plate, a screw hole and a sliding groove which are communicated with the tool placing groove are formed in the tool mounting plate, a locking block is inserted in the sliding groove in a sliding manner, a locking bolt which is in transmission connection with the locking block through a transmission mechanism is screwed in the screw hole, and in the process of screwing the locking bolt to extrude the tool, the locking bolt drives the transmission mechanism to drive the locking block to extrude the tool so that the tool is synchronously fixed by the locking bolt and the locking block. The invention only needs to carry out one-time screwing operation when the cutter is fixed or detached every time, and can reduce the steps of installation operation and detachment operation on the basis of ensuring that the cutter is firmly installed, thereby improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of tool rests, in particular to a multi-station vertical tool rest for milling of a numerical control machine tool.
Background
The tool holder is a very important part of a numerical control machine tool, on which a certain number of tools, typically 4, 6, 8, 10, etc., can be mounted according to its function. The tool rest is generally in a rotary structure, and the tool is arranged on the tool rest along the circumferential direction and can be provided with a radial turning tool, an axial turning tool, a drill bit and a boring tool. For example, in the milling process, the firmness of the tool mounted on the tool holder is important for ensuring the processing quality and the safety in the processing process.
For example, in the invention patent with the application number of cn201610741571.X and the granted publication number of CN106270576B, entitled "lathe tool holder", there is disclosed "a left tool holder and a right tool holder, both the left tool holder and the right tool holder are provided with clamping parts for fixing a tool, the left and right ends of the main tool holder are respectively provided with a notch, the left tool holder/the right tool holder and the main tool holder are connected through a connecting plate, one end of the connecting plate is fixed on the left tool holder/the right tool holder, the other end of the connecting plate is arranged in the notch and fixed in the notch through a locking bolt, the front end of the left tool holder/the right tool holder is at least provided with two threaded holes, the threaded holes are internally provided with fastening bolts, and the fastening bolts form the clamping parts for fixing the tool.
Although the lathe tool rest provided by the above patent of the invention can fix the tool by using the bolts, and in order to ensure the fixing effect of the tool, in the prior art, the number of the fastening bolts used on each tool is at least two, so that all the bolts need to be screwed every time the tool is fixed or every time the tool is dismounted, that is, at least two screwing operations need to be performed every time the tool is fixed or every time the tool is dismounted, which increases the operation steps and increases the time, and reduces the working efficiency.
Disclosure of Invention
The invention aims to provide a multi-station vertical tool rest for milling of a numerical control machine tool, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a vertical knife rest of multistation for milling process of digit control machine tool, is including the dress cutting board that is used for placing the cutter, set up on the dress cutting board put the sword groove with cutter looks adaptation, set up on the dress cutting board with put screw and the spout that the sword groove communicates mutually, it has the locking piece to slide to peg graft in the spout, the spiro union has the locking bolt of being connected through the drive mechanism transmission with the locking piece in the screw, revolves soon locking bolt is with the in-process of extrusion cutter, locking bolt orders about drive mechanism and drives locking piece extrusion cutter so that the cutter is fixed by locking bolt and locking piece synchronization.
The multi-station vertical tool rest for milling of the numerical control machine tool is characterized in that the number of the cutter installing plates is multiple, and the cutter installing plates are circumferentially and fixedly arranged on the cutter changing disc.
The multi-station vertical tool rest for milling of the numerical control machine tool is characterized in that a first reset spring is fixedly connected between the locking block and the sliding groove.
The milling process of the numerical control machine tool uses the multi-station vertical tool rest, the number of the sliding grooves is two, the sliding grooves are all slidably inserted with a locking block, and the locking blocks are respectively positioned at the left side and the right side of the locking bolt.
The multi-station vertical tool rest for milling of the numerical control machine tool is characterized in that a cylindrical cavity penetrating through the bottom of the locking bolt is arranged in the locking bolt, and the bottom of the cylindrical cavity is a first inclined surface inclining outwards.
Foretell vertical knife rest of multistation for milling process of digit control machine tool, drive mechanism is including the top core that slides the setting in the cylinder chamber and the bulldozing block of two mutual dispositions of slip butt on first inclined plane, two the relative terminal surface of bulldozing block slides the butt with the bottom surface of top core, slide in the dress cutting board and peg graft have with two slide bars of two locking block one-to-one slip butts, two the looks remote site of slide bar runs through locking bolt and slides the butt with the top core, revolves to twist locking bolt and bulldozes the top core in order to drive two bulldozing blocks and shift up to the inboard, shifting up of top core orders about two slide bars and bulldozes the downward extrusion cutter of locking block that corresponds to the outside.
According to the multi-station vertical tool rest for milling of the numerical control machine tool, the surface, abutted to the first inclined surface, of the pushing block is a third inclined surface inclined inwards, the third inclined surface is fixedly embedded with the permanent magnet adsorbed to the first inclined surface, and the top surface of the permanent magnet is as high as the third inclined surface.
Foretell vertical knife rest of multistation for milling process of digit control machine tool, the top core includes from last to the bottom of the horizontal flat top, the round platform body, cylinder and the cambered surface that sets firmly in proper order down, be the bottom surface of top core at the bottom of the cambered surface, the surface butt of slide bar and round platform body.
In the multi-station vertical tool rest for milling of the numerical control machine tool, the opposite end surfaces of the pushing and pressing blocks are second inclined surfaces which incline outwards.
Foretell vertical knife rest of multistation for milling process of digit control machine tool, the face of locking piece and slide bar slip butt is the fourth inclined plane of outside slope, the face of slide bar and locking piece slip butt is the fifth inclined plane of outside slope, the face of slide bar and ejector core slip butt is the sixth inclined plane of outside slope.
In the technical scheme, the multi-station vertical tool rest for milling of the numerical control machine tool, provided by the invention, has the advantages that the locking bolt and the locking block are arranged on the tool mounting plate and are in transmission connection through the transmission mechanism, when the locking bolt is screwed to extrude the tool, the power on the locking bolt can be transmitted to the locking block under the transmission action of the transmission mechanism, so that the locking bolt and the locking block simultaneously extrude the tool to fix the tool on the tool mounting plate, and similarly, when the tool is dismounted, the locking bolt only needs to be screwed reversely, which is not repeated. Compared with the prior art, the invention only needs to perform one-time screwing operation when the cutter is fixed or detached every time, can reduce the steps of installation operation and detachment operation on the basis of ensuring that the cutter is firmly installed, improves the working efficiency and effectively solves the defects in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic structural diagram of a multi-station vertical tool rest for milling of a numerical control machine tool according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a cutter provided by an embodiment of the present invention when the cutter is fixed on a cutter-mounting plate;
FIG. 3 is a disassembled view of a tool holding plate, a tool, and components of the tool holding plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a locking bolt provided in an embodiment of the present invention;
FIG. 5 is a cross-sectional elevation view of a locking bolt provided in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional three-dimensional view of a locking bolt provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of one of the pushers according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a top core provided in accordance with an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a slide bar according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a second return spring and a stepped connecting disk provided in an embodiment of the present invention;
FIG. 11 is a cross-sectional elevation view of a tool mounting plate provided in accordance with an embodiment of the present invention;
FIG. 12 is a cross-sectional elevation view of a tool bit secured to a tool mounting plate according to an embodiment of the present invention;
fig. 13 is an enlarged schematic view of the part a according to the embodiment of the present invention.
Description of reference numerals:
1. changing the cutter head; 2. installing a cutter plate; 201. a cutter placing groove; 202. a screw hole; 203. an internal thread; 204. a chute; 205. a jack; 3. locking the bolt; 301. a hexagonal hole; 302. avoiding holes; 303. a first inclined surface; 304. a limiting groove; 305. a carrier tray; 306. an external thread; 307. a cylindrical cavity; 4. a cutter; 5. a locking block; 501. a fourth inclined surface; 6. a core; 601. flat top of water; 602. a circular truncated cone; 603. a rotating shaft; 604. a cylinder; 605. a cambered surface bottom; 7. a push block; 701. a permanent magnet; 702. a second inclined surface; 703. a third inclined surface; 8. a slide bar; 801. a sixth inclined surface; 802. a fifth inclined surface; 9. a first return spring; 10. a second return spring; 11. a step connecting disc.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 13, the multi-station vertical tool rest for milling of a numerical control machine tool provided in an embodiment of the present invention includes a tool mounting plate 2 for placing a tool 4, the tool mounting plate 2 is provided with a tool holding groove 201 adapted to the tool 4, the tool mounting plate 2 is provided with a screw hole 202 and a sliding groove 204, the screw hole 201 is communicated with the tool holding groove 201, a locking block 5 is inserted in the sliding groove 204 in a sliding manner, a locking bolt 3 in transmission connection with the locking block 5 through a transmission mechanism is screwed in the screw hole 202, and in a process of screwing the locking bolt 3 to extrude the tool 4, the locking bolt 3 drives the transmission mechanism to drive the locking block 5 to extrude the tool 4 so that the tool 4 is synchronously fixed by the locking bolt 3 and the locking block 5.
The multi-station vertical tool rest for milling of the numerical control machine tool is provided in the embodiment for fixing the tool, the terms of the positional relationship such as "left", "right", "upper" and "lower" and the like in the embodiment are relative to the drawings, and the terms of "inclining to the outside" and "inclining to the inside" in the embodiment are in the direction from the bottom to the top. Specifically, the knife loading plate 2 is a carrier for placing the knife 4, the knife placing groove 201 is matched with the knife 4, and when the knife 4 is placed in the knife placing groove 201, the side surface of the knife 4 is attached to or close to the inner wall of the knife placing groove 201, the top of the locking bolt 3 is provided with a hexagonal hole 301, which can also be a quadrangular hole, an octagonal hole and the like, and the hexagonal hole 301 is used for inserting a rotating tool (such as a wrench) to screw the locking bolt 3. The locking bolt 3 and the locking block 5 are used for extruding and fixing the cutter 4 at different positions so as to ensure that the cutter 4 can be fixed firmly. The transmission mechanism is used for transmitting power on the locking bolt 3 to the locking block 5 when the locking bolt 3 is screwed, and can enable the locking bolt 3 and the locking block 5 to be locked when the locking bolt 3 and the locking block 5 are firmly extruded with the cutter 4, so that the cutter 4 is synchronously fixed by the locking bolt 3 and the locking block 5. The working principle of the multi-station vertical tool rest for milling of the numerical control machine tool provided by the invention is as follows: firstly, a cutter 4 is placed in a cutter placing groove 201, after the extension length of the cutter 4 is adjusted, a rotating tool is inserted into a hexagonal hole 301 and rotates the rotating tool, the rotating tool drives a locking bolt 3 to rotate so as to realize the screwing of the locking bolt 3, because the locking bolt 3 is in threaded connection with a screw hole 202, the locking bolt 3 can be continuously moved downwards (towards the direction of the cutter 4) along with the screwing of the locking bolt 3, and a locking block 5 can also be continuously moved downwards under the action of a transmission mechanism, when the locking bolt 3 is screwed to a limit state (namely, the locking bolt 3 and the locking block 5 cannot be continuously rotated), the cutter 4 is firmly extruded by the locking bolt 3 and the locking block 5 at the same time, and the locking bolt 3, the locking block 5 and the transmission mechanism at the moment form a locked whole body by utilizing the threaded connection so as to realize the fixing of the cutter 4, because the cutter 4 has a plurality of extrusion fixing points, the fixing of the cutter 4 can be ensured to be firmly fixed, when the cutter 4 is dismounted, the cutter 4 only needs to be turned over and the screwing of the cutter 4 is not repeated. In the prior art, the number of the fastening bolts used on each cutter is at least two, so that all the bolts need to be screwed every time the cutter is fixed or the cutter is dismounted every time, that is, at least two screwing operations need to be performed every time the cutter is fixed or the cutter is dismounted every time, so that the operation steps are increased, the time is increased, and the working efficiency is reduced. The main innovation points of the invention are as follows: set up drive mechanism between a plurality of extrusion fixed points at cutter 4, only remain a locking bolt 3 as the power transmission source of fixed cutter 4, remaining extrusion fixed point uses locking piece 5 to replace, under the firm condition of guaranteeing that cutter 4 is fixed, only need twist a locking bolt 3 soon, can realize that a plurality of extrusion fixed points are fixed cutter 4 simultaneously, and on the same principle, also only need reverse twist a locking bolt 3 and can realize that a plurality of extrusion fixed points remove the extrusion to cutter 4 simultaneously, make work efficiency obtain improving.
In this embodiment, compared with the locking bolt 3 in the prior art, the locking block 5 has a larger contact area between the locking block 5 and the tool 4, so that the effect of the locking block 5 on pressing and fixing the tool 4 is greater than the effect of using the locking bolt 3 to fix the tool 4 in the prior art.
In this embodiment, through setting up locking bolt 3 and locking block 5 on dress cutting board 2, and locking bolt 3 is connected through the drive mechanism transmission with locking block 5, when revolving wrong locking bolt 3 and extrudeing cutter 4, under drive mechanism's drive action, can transmit power on the locking bolt 3 to locking block 5 on to make locking bolt 3 and locking block 5 extrude cutter 4 simultaneously in order to fix cutter 4 on dress cutting board 2, and the same thing, when dismantling cutter 4, only need reverse revolve twist wrong locking bolt 3 can, not repeated. Compared with the prior art, the invention only needs to carry out one-time screwing operation when the cutter 4 is fixed or the cutter 4 is dismounted each time, and can reduce the steps of mounting operation and dismounting operation on the basis of ensuring that the cutter 4 is firmly mounted, thereby improving the working efficiency.
In this embodiment, the number of the cutter installing plates 2 is plural, and the plurality of cutter installing plates 2 are circumferentially and fixedly arranged on the cutter changing disc 1. A plurality of dress cutting board 2 pass through bolt or welded mode fixed mounting on the leading flank of cutter changing disc 1, cutter changing disc 1 is used for switching cutter 4 on a plurality of dress cutting board 2, and cutter changing disc 1's trailing flank is connected with the drive, and the drive is used for driving cutter changing disc 1 and rotates and then realize the switching of cutter 4, and cutter changing disc 1 and driven concrete structure and theory of operation are prior art, do not give unnecessary details. The number of stations can be increased by arranging the plurality of tool loading plates 2, and the multi-station arrangement can improve the tool changing speed during milling so as to improve the working efficiency.
In this embodiment, a first return spring 9 is fixedly connected between the locking block 5 and the sliding groove 204. The first return spring 9 functions as: firstly, in an initial state (namely when the locking block 5 is not acted by the action force of the transmission mechanism), the height of the locking block 5 is stabilized at a specific position, so that the bottom of the locking block 5 cannot protrude out of the sliding groove 204, and the locking block 5 cannot block the cutter 4 from being placed in the tool placing groove 201; secondly, when the locking bolt 3 is reversely screwed in the process of detaching the cutter 4 to cancel the acting force of the transmission mechanism on the locking block 5, the locking block 5 can be automatically reset under the elastic force action of the first return spring 9.
In this embodiment, the number of the sliding grooves 204 is two, and a locking block 5 is inserted into each of the two sliding grooves 204 in a sliding manner; the two locking blocks 5 are respectively positioned at the left and right sides of the locking bolt 3. Utilize two locking pieces 5 to make the fixed point of stationary knife 4 be three, only need to twist and to twist a locking bolt 3 and can make locking bolt 3 and two locking pieces 5 extrude cutter 4 simultaneously and make cutter 4 fixed, three fixed point separates each other and has certain interval, can further guarantee that cutter 4's is fixed firm to when guaranteeing that cutter 4's fixed is more firm, improve work efficiency.
In this embodiment, a cylindrical cavity 307 penetrating the bottom of the lock bolt 3 is formed in the lock bolt 3, and the bottom of the cylindrical cavity 307 is a first inclined surface 303 inclined outward.
Further, the transmission mechanism comprises a top core 6 arranged in a cylindrical cavity 307 in a sliding mode and two push blocks 7 arranged oppositely and butted on the first inclined surface 303 in a sliding mode, the opposite end surfaces of the two push blocks 7 are butted with the bottom surface of the top core 6 in a sliding mode, the bottom surfaces of the two push blocks 7 are lower than the bottom surface of the top core 6 in height, the locking bolt 3 realizes extrusion fixing of the cutter 4 through the two extrusion blocks 7, namely the locking bolt 3 extrudes the cutter 4 through the two extrusion blocks 7, two sliding rods 8 in one-to-one sliding butt joint with the two locking blocks 5 are inserted in the cutter installing plate 2 in a sliding mode, the cutter installing plate 2 is provided with a jack 205 communicated with the sliding groove 204 and the screw hole 202 in a penetrating mode, the two sliding rods 8 are in sliding fit with the jack 205, the opposite ends of the two sliding rods 8 penetrate through the locking bolt 3 and are butted with the top core 6 in a sliding mode, the lock bolt 3 is provided with avoidance holes 302 corresponding to the two slide bars 8 one by one, the end parts of the slide bars 8 are abutted against the top core 6 after passing through the avoidance holes 302, the avoidance holes 302 can enable the lock bolt 3 to have a rotating space with a certain angle (the rotating space with a certain angle can enable the lock bolt 3 to change the process of pressing the cutter 4 from non-contact) and a moving space with a certain vertical distance, namely, the slide bars 8 can not hinder the rotation and the up-and-down movement of the lock bolt 3 when fixing the cutter 4, through the structure, when the lock bolt 3 is screwed, the lock bolt 3 can downwards push and press the two push blocks 7, the bottom surfaces of the two push blocks 7 are abutted against the top surface of the cutter 4, and downwards move along with the continuous screwing of the lock bolt 3 by utilizing the inclined design of the first inclined surface, the lock bolt 3 can extrude the two push blocks 7 to slide towards the inner side (the inner side refers to the central direction of the lock bolt 3), after two bulldozing blocks 7 slide towards the inboard, can bulldoze the core 6 and upwards slide, the shifting up of core 6 drives two slide bars 8 again and slides to the outside along jack 205, two slide bars 8 that slide to the outside can promote two locking blocks 5 respectively and slide downwards, moving down of locking block 5 makes first reset spring 9 stretched and produce elasticity, and make the bottom surface of two locking blocks 5 compress tightly the top surface of cutter 4 simultaneously along with moving down of two locking blocks 5, after the bottom surface of two locking blocks 5 compressed tightly the top surface of cutter 4 simultaneously, core 6 lost the space of shifting up and can't continue to move up, the bottom surface of two extrusion blocks 7 also compresses tightly the top surface of cutter 4 at this moment simultaneously, and then realized that two locking blocks 5 and two extrusion blocks 7 extrude the while of cutter 4 fixed, also describe with a sentence: and screwing the locking bolt 3 to drive the two pushing blocks 7 to push the ejecting core 6 inwards to move upwards, and the moving upwards of the ejecting core 6 drives the two sliding rods 8 to push the corresponding locking blocks 5 outwards to extrude the cutter 4 downwards.
In the present embodiment, by using the shape design of the first inclined surface 303, the pressing block 7 and the top core 6 (see fig. 3, 5, 6, 7 and 8), even if a certain relative rotation occurs between the pressing block 7 and the top core 6 and the first inclined surface 303 under the action of friction force during the process of fixing the cutter 4, the simultaneous pressing and fixing of the two locking blocks 5 and the two pressing blocks 7 to the cutter 4 is not prevented.
In this embodiment, the surface of the push block 7 abutting against the first inclined surface 303 is a third inclined surface 703 inclined inward, a permanent magnet 701 attached to the first inclined surface 303 is fixed to the third inclined surface 703, the permanent magnet 701 prevents the two push blocks 7 from being detached from the first inclined surface 303, the third inclined surface 703 functions to allow the two push blocks 7 and the lock bolt 3 to rotate relative to each other, and the top surface of the permanent magnet 701 is as high as the third inclined surface 703 so that the permanent magnet 701 can be attached to the first inclined surface 303 and the lock bolt 3 can rotate smoothly. Meanwhile, by the inclination design of the first inclined surface 303 and the third inclined surface 703, after the bottom surfaces of the two press blocks 7 are brought into sliding contact with the top surface of the tool 4, the two press blocks 7 are slid inward along the top surface of the tool 4 to press the bottom surface of the core 6 during the downward movement of the lock bolt 3.
In this embodiment, the top core 6 includes a horizontal top 601, a circular truncated cone 602, a cylinder 604, and an arc bottom 605, which are fixed from top to bottom in sequence, the arc bottom 605 is the bottom surface of the top core 6, the sliding rod 8 abuts against the outer surface of the circular truncated cone 602, and the diameter of the circular truncated cone 602 decreases from bottom to top in sequence. Because the bottom surface of the top core 6 is a cambered surface, when the two pushing blocks 7 slide inwards to push the bottom surface of the top core 6, the top core 6 can move upwards; meanwhile, the shape design of the truncated cone 602 itself is utilized, so that when the top core 6 moves upwards, the truncated cone 602 can move upwards, and the upwards-moving truncated cone 602 can respectively push the two sliding rods 8 to slide outwards by utilizing the inclined design of itself.
Further, the opposite end surfaces of the pushers 7 are second inclined surfaces 702 inclined outward, and the inclination direction of the second inclined surfaces 702 is adapted to the complete direction of the bottom surface 605, so that the two pushers 7 and the top core 6 can slide more smoothly.
Further, in this embodiment, the surface of the locking block 5 in sliding contact with the sliding rod 8 is a fourth inclined surface 501 inclined outward, so that when the two sliding rods 8 slide outward, the two locking blocks 5 can be respectively pushed to slide downward; the surface of the sliding rod 8, which is in sliding contact with the locking block 5, is a fifth inclined surface 802 which is inclined outwards so as to ensure that the sliding between the sliding rod 8 and the locking block 5 is smoother; the surface of the slide bar 8 in sliding contact with the top core 6 is a sixth inclined surface 801 inclined outward, and the shape of the sixth inclined surface 801 is adapted to the shape of the circular truncated cone 602, so that the slide bar 8 and the top core 6 slide smoothly.
In this embodiment, the external thread 306 on the locking bolt 3 is located below the avoiding hole 302, the internal thread 203 in the screw hole 202 is located below the insertion hole 205, and the external thread 306 and the internal thread 203 realize the bolt connection between the locking bolt 3 and the screw hole 202, and this design reduces the screwing time when the locking bolt 3 is installed while ensuring the stable bolt connection between the locking bolt 3 and the screw hole 202.
Furthermore, a second return spring 10 is connected between the horizontal top 601 and the top surface of the cylindrical cavity 307, one end of the second return spring 10 is fixedly connected with the horizontal top 601, and the other end is rotatably clamped with the top surface of the cylindrical cavity 307 through a rotating device. The rotating device comprises a step connecting disc 11 fixedly connected with the end part of the second reset spring 10 and a bearing disc 305 fixedly connected with the top surface of a cylindrical cavity 307, a step cavity matched with the step connecting disc 11 is formed in the bearing disc 305, the step connecting disc 11 is rotatably connected in the step cavity in a clamping mode, the bearing disc 305 is driven to rotate synchronously when the fastening bolt 3 is rotated, the step connecting disc 11 is connected with the step cavity in a rotating mode, the step connecting disc 11 and the second reset spring 10 can not rotate along with the rotation of the fastening bolt 3, and therefore the second reset spring 10 is guaranteed not to be twisted, and the connecting firmness of the second reset spring 10 is improved. The second return spring 10 functions as: firstly, in an initial state, the bottom surfaces of the two push blocks 7 do not protrude out of the screw hole 202, so that the two push blocks 7 do not hinder the insertion of the cutter 4; secondly, the two push blocks 7 and the top core 6 can be reset; thirdly, the two slide bars 8 are always abutted against the core 6 and the lock block 5.
In this embodiment, two rotating shafts 603 that are arranged oppositely are fixedly mounted on the cylinder 604, two limiting grooves 304 that correspond to the two rotating shafts 603 one to one are formed in the cylindrical cavity 307, the two rotating shafts 603 are rotatably inserted into the two limiting grooves 304, and the length of the limiting grooves 304 is greater than the diameter of the rotating shafts 603, so that the rotating shafts 603 can slide up and down along the limiting grooves 304, and the sliding connection between the top core 6 and the cylindrical cavity 307 is realized by the up-and-down sliding of the rotating shafts 603 and the limiting grooves 304.
Simultaneously, be provided with the activity space (two axis of rotation 603 are located the front and back both sides of ejector core 6 respectively) between the left and right sides of ejector core 6 and the cylinder chamber 307, because two axis of rotation 603 rotate with two spacing grooves 304 and peg graft for when two bulldozing piece 7 slide to the inboard in order to bulldoze the bottom surface of ejector core 6, make ejector core 6 have certain swing space, the effect of this design is, the distance between the bottom surface of two locking piece 5 and the top surface of cutter 4 is different, still can realize two locking pieces 5 and two extrusion piece 7 extrusion fixed simultaneously to cutter 4.
Because, in the long-term use process, the top surface of the tool 4 and the bottom surfaces of the two locking blocks 5 are inevitably worn to different degrees, or the top surfaces of the tool 4 are not completely horizontal in the processing production process, or the lengths of the two locking blocks 5 are different, and other factors, the distance between the bottom surfaces of the two locking blocks 5 and the top surface of the tool 4 is easily different, and if the top core 6 can only slide up and down, once the distance between the bottom surfaces of the two locking blocks 5 and the top surface of the tool 4 is different, the locking block 5 with a larger distance between the top surfaces of the tool 4 cannot compress the tool 4, so that the fixed point of the tool 4 is lacked. The top core 6 is set in a swingable state creatively, so that when the distances between the bottom surfaces of the two locking blocks 5 and the top surface of the tool 4 are different, the truncated cone 602 of the top core 6 swings toward the side of the locking block 5 with the larger distance from the top surface of the tool 4 until the top core 6 cannot swing, and at this time, the two locking blocks 5 and the two squeezing blocks 7 can simultaneously press the tool 4 (due to the arc design of the arc bottom 605, the top core 6 can simultaneously abut against the two squeezing blocks 7 even if swinging. Specifically, for the description of the aspect, the locking block 5 with a larger distance from the top surface of the tool 4 is referred to as a high locking block for short, and the other locking block 5 is referred to as a low locking block for short, the plunger 6 is moved upward under the pushing action of the two squeezing blocks 7, the upward plunger 6 pushes the two sliding rods 8 to slide outward, so that the bottom surface of the low locking block can firstly compress the tool 4, and the bottom surface of the high locking block cannot compress the tool 4, at this time, the low locking block cannot continue to move downward, and the high locking block can continue to move upward by screwing the locking bolt 3, and under the blocking action of the low locking block, the corresponding sliding rod 8 can push the plunger 6 to swing toward one side of the high locking block, so that the plunger 6 pushes the sliding rod 8 corresponding to the high locking block to continue to slide outward so that the high locking block continues to move downward until the bottom surface of the high locking block and the top surface of the tool 4 compress tightly, so that the two locking blocks can both compress tightly the tool 4.
In this embodiment, the sliding rod 8 and the locking block 5 are polygonal bodies, so that the sliding rod 8 and the locking block 5 cannot rotate when sliding.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. The utility model provides a vertical knife rest of multistation for numerical control machine tool milling process, is including dress cutting board (2) that are used for placing cutter (4), set up on dress cutting board (2) and put cutting groove (201), its characterized in that with cutter (4) looks adaptation: the tool loading plate (2) is provided with a screw hole (202) and a sliding groove (204) which are communicated with the tool placing groove (201), a locking block (5) is inserted in the sliding groove (204) in a sliding mode, a locking bolt (3) which is in transmission connection with the locking block (5) through a transmission mechanism is connected in the screw hole (202) in a threaded mode, and in the process that the locking bolt (3) is screwed to extrude the tool (4), the locking bolt (3) drives the transmission mechanism to drive the locking block (5) to extrude the tool (4) so that the tool (4) can be synchronously fixed by the locking bolt (3) and the locking block (5);
the number of the sliding grooves (204) is two, the two sliding grooves (204) are inserted with a locking block (5) in a sliding mode, and the two locking blocks (5) are located on the left side and the right side of the locking bolt (3) respectively;
a cylindrical cavity (307) penetrating through the bottom of the locking bolt (3) is formed in the locking bolt, and the bottom of the cylindrical cavity (307) is a first inclined surface (303) inclined outwards;
the transmission mechanism comprises a top core (6) arranged in a cylindrical cavity (307) in a sliding mode and two oppositely-arranged pushing blocks (7) in sliding abutting connection with the first inclined surface (303), opposite end surfaces of the two pushing blocks (7) are in sliding abutting connection with the bottom surface of the top core (6), two sliding rods (8) in one-to-one sliding abutting connection with the two locking blocks (5) are inserted in the cutter installing plate (2) in a sliding mode, opposite ends of the two sliding rods (8) penetrate through a locking bolt (3) and are in sliding abutting connection with the top core (6), the locking bolt (3) drives the two pushing blocks (7) to push the top core (6) to move inwards to move upwards, and the two sliding rods (8) are driven to push the corresponding locking blocks (5) to extrude a cutter (4) downwards towards the outer side by the upward movement of the top core (6).
2. The multi-station vertical tool rest for milling of the numerical control machine tool according to claim 1, characterized in that: the cutter loading plate (2) is multiple in number and multiple in number, and the cutter loading plate (2) is circumferentially and fixedly arranged on the cutter changing disc (1).
3. The multi-station vertical tool rest for milling of the numerical control machine tool according to claim 1, characterized in that: a first return spring (9) is fixedly connected between the locking block (5) and the sliding groove (204).
4. The multi-station vertical tool rest for milling of the numerical control machine tool according to claim 1, characterized in that: the surface of the pressing block (7) in contact with the first inclined surface (303) is a third inclined surface (703) inclined inwards, a permanent magnet (701) adsorbed to the first inclined surface (303) is fixedly embedded in the third inclined surface (703), and the top surface height of the permanent magnet (701) is the same as the height of the third inclined surface (703).
5. The multi-station vertical tool rest for milling of the numerical control machine according to claim 1, characterized in that: the top core (6) comprises a horizontal top (601), a circular truncated cone body (602), a cylinder (604) and an arc bottom (605) which are fixedly arranged from top to bottom in sequence, the arc bottom (605) is the bottom surface of the top core (6), and the sliding rod (8) is abutted to the outer surface of the circular truncated cone body (602).
6. The multi-station vertical tool rest for milling of the numerical control machine tool according to claim 1, characterized in that: the opposite end surfaces of the push block (7) are second inclined surfaces (702) inclined outwards.
7. The multi-station vertical tool rest for milling of the numerical control machine tool according to claim 1, characterized in that: the surface that locking piece (5) and slide bar (8) slip butt is fourth inclined plane (501) to the outside slope, the surface that slide bar (8) and locking piece (5) slip butt is fifth inclined plane (802) to the outside slope, the surface that slide bar (8) and ejector core (6) slip butt is sixth inclined plane (801) to the outside slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850937.2A CN115194526B (en) | 2022-07-19 | 2022-07-19 | Multi-station vertical tool rest for milling of numerical control machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850937.2A CN115194526B (en) | 2022-07-19 | 2022-07-19 | Multi-station vertical tool rest for milling of numerical control machine tool |
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| CN115194526A CN115194526A (en) | 2022-10-18 |
| CN115194526B true CN115194526B (en) | 2023-01-31 |
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|---|---|
| CN115194526A (en) | 2022-10-18 |
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Effective date of registration: 20230111 Address after: 362000 No. 10, Jinhe Road, Binjiang Industrial Zone, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province Applicant after: QUANZHOU QUANHANG CONSTRUCTION MACHINERY CO.,LTD. Address before: 239000 No.8 Lanzhou Road, Suchu modern industrial park, Chuzhou City, Anhui Province Applicant before: Chuzhou exquisite electrical appliances Co.,Ltd. |
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