A milling cutter head with a cutter convenient to replace

Abstract

The application relates to a cutting processing equipment, in particular to a milling cutter disc convenient for replacing a milling cutter, which comprises a milling cutter disc body and a replacement base, the milling cutter disc body is detachably arranged on the replacement base, the milling cutter disc body comprises a tool shank and a tool body, the tool body is provided with a milling cutter on the side surface, the tool shank comprises a connecting shank and a mounting shank, one end of the connecting shank is fixedly connected with one side of the tool body, the other end is rotatably inserted into a rotary cavity arranged at the end of the mounting shank, and the replacement base comprises a bottom box, one end of the bottom box is provided with a supporting seat for supporting the bottom of the tool body, the other end of the bottom box is provided with a clamping structure, a transmission structure and a power shaft, when the milling cutter is replaced, the milling cutter disc body can be fixedly arranged on the bottom box base, meanwhile, the connecting shank and the mounting shank in the tool shank are unlocked, the connecting shank and the tool body are intermittently rotated through an intermittent rotating assembly, and the operator can conveniently replace the milling cutter.

Description

TECHNICAL FIELD

[0001] The application relates to a cutting processing equipment, in particular to a milling cutter disc convenient for replacing a milling cutter. BACKGROUND

[0002] The milling cutter disc is a cutter for mounting cutting milling cutters on a disc-shaped cutter body and is mainly used for machining planes, steps, grooves, shaped surfaces and cutting off workpieces on a milling machine, removes metal materials through rotating the milling cutter disc and is one of commonly used cutters on numerical control machine tools.

[0003] When multiple groups of milling cutters in the milling cutter disc are disassembled and assembled, the milling cutters are installed through screws, and the milling cutter disc and the milling cutters are difficult to be stably fixed for installation by hands, so that the milling cutter disc shakes and is unstable during installation, in order to avoid the above problems, the milling cutter disc needs to be fixed by using a fixing clamp during installation, but since the milling cutters need to be uniformly installed along the circumferential direction of the milling cutter disc, the milling cutter disc needs to be repeatedly clamped and released by personnel during installation even if the fixing clamp is used, so that the clamping angle of the milling cutter disc at different angles is adjusted, the installation of the milling cutters on different installation surfaces is met, and the replacement difficulty of the milling cutters is greatly improved. SUMMARY

[0004] The application aims to provide a milling cutter disc convenient for replacing a milling cutter, which is used to solve the above technical problems.

[0005] To achieve the above object, the application provides a milling cutter disc convenient for replacing a milling cutter, which comprises a milling cutter disc body and a replacement base.

[0006] The milling cutter disc body comprises a cutter handle and a cutter body, mounting holes for mounting milling cutters are arranged in mounting grooves on the side of the cutter body, the cutter handle comprises a connecting handle and a mounting handle, one end of the connecting handle is fixedly connected with one side of the cutter body, the other end is rotatably inserted into a rotary cavity arranged at the end of the mounting handle, the connecting handle and the mounting handle are locked by a first locking assembly, an intermittent rotation assembly for intermittently rotating the connecting handle is arranged at the end of the rotary cavity of the mounting handle, and the intermittent rotation assembly is in transmission connection with a driving shaft on the mounting handle through a linkage structure.

[0007] The replacement base comprises a bottom box, a supporting seat for supporting the bottom of the cutter body is arranged at one end of the bottom box, and a clamping structure, a transmission structure and a power shaft are arranged at the other end of the bottom box, the mounting handle is fixed by the clamping structure, the power shaft is in transmission connection with the clamping structure through the transmission structure, and the power shaft and the driving shaft on the mounting handle are in transmission connection by the transmission assembly when the mounting handle is clamped and fixed by the clamping structure.

[0008] As a further scheme of the present application, the first locking assembly comprises two sets of limiting sliding plates, which are slidingly installed on the outer side of the mounting handle, and a set of locking blocks is fixedly installed on the side of the mounting handle which is close to the connecting handle, and the other end is in transmission connection with the locking nut which is rotatably installed on the outer side of the mounting handle, and the connecting handle is provided with a locking hole on the end face which is close to the mounting handle for the locking block to be inserted.

[0009] As a further scheme of the present application, the intermittent rotation assembly comprises a rotating disc, a rotating shaft and a plurality of locking wedges.

[0010] The rotating disc is coaxially fixedly installed on the end face of the connecting handle, and the side face is provided with a locking groove for the locking wedge to be inserted.

[0011] The number of the locking wedges is consistent with the number of the milling cutters, a plurality of installation grooves for slidingly installing the corresponding locking wedges are uniformly formed on the inner wall of the mounting handle, and the locking wedges are elastically installed in the corresponding installation grooves through the first connecting spring.

[0012] The rotating shaft is rotatably installed on the end face of the inner cavity of the mounting handle, and a transmission lever is fixedly installed on the end of the rotating shaft which is close to the rotating disc, the transmission lever is elastically connected with the fixed protrusion which is eccentrically installed on the rotating disc through the second connecting spring, and the end of the transmission lever can extrude the corresponding locking wedge to make it retract into the locking groove.

[0013] As a further scheme of the present application, the linkage structure comprises a transmission worm and a driving worm, the transmission worm is coaxially fixedly installed on the rotating shaft, and the driving worm is coaxially installed on the driving shaft and is in meshing connection with the transmission worm.

[0014] As a further scheme of the present application, the clamping structure comprises two sets of clamping sliding plates and two pairs of limiting columns.

[0015] The two pairs of limiting columns are respectively installed on the two ends of the mounting handle.

[0016] The two sets of clamping sliding plates are slidingly installed in the guide sliding rails on the two side plates of the bottom box, the two sets of clamping sliding plates are respectively provided with two sets of placement grooves for placing the end portions of the corresponding limiting columns, the clamping sliding plates are internally provided with a fixing assembly for locking the limiting columns, a plurality of guide columns are fixedly installed on the bottom of the clamping sliding plates, the guide columns are slidingly installed in the guide holes in the bottom of the guide sliding rails, and the fixing plate which is installed on the end portion of the guide column is elastically connected with the bottom of the guide sliding rail through the first reset spring.

[0017] When the clamping sliding plate slides down to the limit position, it is locked by the second locking assembly on the side plate of the bottom box.

[0018] As a further scheme of the present application, the fixing assembly is installed in the mounting cavity in the clamping slide plate, which comprises two groups of sliding arc blocks, a double-end screw rod, a first transmission gear and a first fixed rack.

[0019] Among them, the two groups of sliding arc blocks are respectively slidably installed on the two sides of the mounting cavity, and the distal ends of the two groups of sliding arc blocks are correspondingly provided with arc surfaces for adapting to the side surface of the pressing limiting column;

[0020] The double-end screw rod is rotatably installed in the mounting cavity, and the threaded pipes at both ends thereof are correspondingly threadedly connected to the inner threaded holes at the proximal ends of the two groups of sliding arc blocks;

[0021] The first transmission gear is coaxially and fixedly installed on the middle part of the double-end screw rod;

[0022] The first fixed rack is fixedly installed on the side plate of the bottom box and is in meshing transmission with the first transmission gear.

[0023] As a further scheme of the present application, the second locking assembly comprises a limiting plate, a pulling plate and a connecting column;

[0024] The connecting column is fixedly installed on the side surface corresponding to the clamping slide plate;

[0025] The limiting plate is fixedly installed on the side plate of the bottom box, and an arc limiting groove for limiting the abutment of the rod body of the connecting column is arranged on the limiting plate;

[0026] The pulling plate is slidably installed in the communication groove formed on the side of the limiting plate away from the side plate, and is elastically connected with the limiting plate through the second reset spring, and an arc guiding surface is arranged on the end of the pulling plate slidably inserted.

[0027] As a further scheme of the present application, the transmission assembly comprises a driving plate, a driving screw rod, a rotary inner nut, a second transmission gear and a second fixed rack;

[0028] Among them, the driving plate is vertically slidably installed on the inner side of the side plate of the bottom box through a plurality of limiting rods;

[0029] One end of the driving screw rod is fixedly connected to the side of the connecting side plate of the driving plate;

[0030] The rotary inner nut is rotatably installed on the side plate corresponding to the connection of the driving plate, and is threadedly connected with the driving screw rod;

[0031] The second transmission gear is coaxially installed on the outer side of the rotary inner nut;

[0032] The second fixed rack is fixedly connected with the corresponding clamping slide plate and is in meshing connection with the second transmission gear.

[0033] As a further scheme of the present application, the power shaft is rotatably installed on the driving plate and is driven by the driving plate to move linearly synchronously, and a plurality of installation nails are fixedly installed on the power shaft close to the inner side of the bottom box.

[0034] Compared with the prior art, the milling cutter body can be disassembled from the replacement base, the shank is designed to include a rotating connecting handle and a mounting handle, the connecting handle is fixedly connected with the tool body in the milling cutter body, so that the operator can:

[0035] 1. When the milling cutter body is used for cutting metal work:

[0036] the milling cutter body can be disassembled from the replacement base, the shank is designed to include a rotating connecting handle and a mounting handle, the connecting handle is fixedly connected with the tool body in the milling cutter body, so that the operator can:

[0037] 2. When the milling cutter body is used for replacing the milling cutter:

[0038] At this time, the two pairs of limiting columns are installed on both sides of the mounting handle, and the two pairs of limiting columns are placed in the placing grooves on the two sets of clamping slides on the replacement base, and the two pairs of limiting columns are pressed and fixed by the two sets of sliding arc blocks in the clamping slide installation cavities, and the clamping slide is locked by the limiting action of the pulling plate in the second locking assembly, and the driving shaft on the driving plate is connected with the driving shaft on the mounting handle by the transmission assembly, so that the operator can control the rotation of the power shaft to drive the driving shaft and the intermittent rotation assembly inside the mounting handle to rotate, adjust the rotation angle of the connecting handle and the tool body, and control the installation surface of the tool body on which the milling cutter needs to be replaced to rotate to the horizontal state in sequence, so that the operator can use the disassembly tool to disassemble the milling cutter from the tool body. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a perspective view of a milling cutter disc for facilitating replacement of a milling cutter.

[0040] Figure 2 It is a side view of a milling cutter disc for facilitating replacement of a milling cutter.

[0041] Figure 3 It is a perspective view of a milling cutter disc for facilitating replacement of a milling cutter.

[0042] Figure 4 An enlarged schematic view of part A in the present application. Figure 2

[0043] Figure 5 An enlarged schematic view of part B in the present application. Figure 2

[0044] Figure 6 A partial sectional view of the shank in the present application.

[0045] Figure 7 A schematic view of the intermittent rotation assembly in the present application.

[0046] Figure 8 A schematic view of the linkage structure in the present application.

[0047] Figure 9 A schematic view of the second locking assembly in the present application.

[0048] In the drawings: 1, mounting shank; 2, connecting shank; 3, shank body; 4, bottom box; 401, side plate; 5, first locking assembly; 501, limiting slide plate; 502, locking insert block; 503, locking nut; 6, clamping structure; 601, limiting column; 602, clamping slide plate; 603, guide slide rail; 604, guide column; 605, first return spring; 7, intermittent rotation assembly; 701, rotating disc; 702, locking wedge; 703, first connecting spring; 704, transmission lever; 705, rotating shaft; 706, second connecting spring; 707, fixing protrusion; 8, linkage structure; 801, transmission worm; 802, driving worm; 9, driving shaft; 901, meshing tooth surface; 10, support seat; 11, fixing assembly; 1101, sliding arc block; 1102, double-headed screw; 1103, first transmission gear; 1104, first fixed rack; 12, second locking assembly; 1201, pulling plate; 1202, second return spring; 1203, limiting plate; 1204, connecting column; 13, power shaft; 1301, mounting nail; 14, transmission assembly; 1401, second fixed rack; 1402, limiting rod; 1403, rotating inner nut; 1404, second transmission gear; 1405, driving screw; 1406, driving plate; 15, mounting plate. DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be described in further detail below in conjunction with specific embodiments.

[0050] As Figure 1 , Figure 2 , Figure 3 and Figure 5 ​​As shown in the embodiment of the present application, a milling cutter disc facilitating replacement of milling cutters comprises a milling cutter disc body and a replacement base, the milling cutter disc body being detachably mounted on the replacement base;

[0051] The milling cutter disc body comprises a tool shank and a tool body 3, the tool body 3 being provided with mounting holes for mounting milling cutters in mounting grooves on the side of the tool body 3, the tool shank comprising a connecting shank 2 and a mounting shank 1, one end of the connecting shank 2 being fixedly connected to one side of the tool body 3, the other end being rotatably inserted into a rotary cavity provided at the end of the mounting shank 1, the connecting shank 2 and the mounting shank 1 being locked by a first locking assembly 5, the rotary cavity end of the mounting shank 1 being provided with an intermittent rotation assembly 7 for intermittently rotating the connecting shank 2, the intermittent rotation assembly 7 being drivingly connected to a driving shaft 9 on the mounting shank 1 through a linkage structure 8;

[0052] The replacement base comprises a bottom box 4, one end of the bottom box 4 being provided with a supporting seat 10 for supporting the bottom of the tool body 3, the other end of the bottom box 4 being provided with a clamping structure 6, a transmission structure and a power shaft 13, the clamping structure 6 being used for fixing the mounting shank 1, the power shaft 13 being drivingly connected to the driving shaft 9 on the mounting shank 1 through the transmission structure and the clamping structure 6, when the clamping structure 6 clamps and fixes the mounting shank 1, the power shaft 13 is drivingly connected to the driving shaft 9 on the mounting shank 1 through the transmission assembly 14;

[0053] Specifically, the tool shank is provided with the rotatably connected connecting shank 2 and mounting shank 1, and the replacement base is provided with the mounting shank 1, the operator fixes the mounting shank 1 to the replacement base, controls the first locking assembly 5 to unlock the connecting shank 2 and the mounting shank 1, then rotates the power shaft 13 to drive the driving shaft 9 on the mounting shank 1 to rotate, drives the connecting shank 2 in the mounting shank 1 to intermittently rotate through the intermittent rotation assembly 7, adjusts the deflection angle of the tool body 3 connected to the end of the connecting shank 2, controls the mounting surface of the tool body 3 on which the milling cutter needs to be replaced to rotate to the horizontal state in sequence, and facilitates the operator to use a dismounting tool to dismount the milling cutter from the tool body 3.

[0054] As Figure 6As shown, in this embodiment of the invention, the first locking component 5 includes two sets of limiting slide plates 501. The two sets of limiting slide plates 501 are slidably mounted on the outside of the mounting handle 1 and are limited by a guide sleeve fixedly mounted on the outside of the mounting handle 1. A set of locking inserts 502 is fixedly mounted on the side facing the connecting handle 2, and the other end is connected to a locking nut 503 rotatably mounted on the outside of the mounting handle 1 via a transmission thread. The connecting handle 2 has a locking hole on its end face near the mounting handle 1 for inserting the locking insert 502. In this invention, the first locking component 5... When the connecting handle 2 and the mounting handle 1 are fixed, the locking blocks 502 at the ends of the two sets of limiting slide plates 501 are inserted into the locking holes provided on the end face of the connecting handle 2. When the first locking component 5 is unlocked, the locking nut 503 is rotated, and the inner thread of the locking nut 503 engages with the incomplete external thread at one end of the limiting slide plate 501, which drives the two sets of limiting slide plates 501 to move into the inner cavity of the locking nut 503. This causes the two sets of locking blocks 502 to extend out of the insertion holes and disengage from the connecting handle 2, thereby realizing the rotational unlocking of the connecting handle 2 and the mounting handle 1.

[0055] Furthermore, in this invention, the unlocked connecting handle 2 is driven to rotate by the intermittent rotating structure inside the mounting handle 1, thereby simplifying the docking steps of the locking plug 502 and the locking hole during reset locking. Of course, in actual design, the first locking component 5 can also be replaced by other components with locking rotation capability, and is not limited to the locking structure of the locking plug 502 used in this invention. For example, a clamping locking structure or a pin locking structure can be selected.

[0056] like Figure 7 and Figure 8 As shown, in this embodiment of the invention, the intermittent rotation assembly 7 includes a rotary disk 701, a rotary shaft 705, and multiple sets of locking wedges 702. The rotary disk 701 is coaxially fixedly mounted on the end face of the connecting handle 2, and its side is provided with locking grooves for the tips of the locking wedges 702 to be locked and inserted. The number of locking wedges 702 is the same as the number of milling cutters. Multiple sets of mounting grooves for the corresponding locking wedges 702 to be slidably mounted are evenly opened on the inner wall of the mounting handle 1. The locking wedges 702 are connected by a first connecting spring 70. 3. The locking wedge 702 is elastically installed in the corresponding mounting groove. The elastic force of the first connecting spring 703 supports the locking wedge 702 to slide linearly out of the mounting groove. The rotary shaft 705 is rotatably installed on the inner cavity end face of the mounting handle 1. A transmission plate 704 is fixedly installed at one end near the rotary disk 701. The transmission plate 704 is elastically connected to the fixed protrusion 707 eccentrically installed on the rotary disk 701 through the second connecting spring 706. The end of the transmission plate 704 can press the corresponding locking wedge 702 to retract it into the locking groove.

[0057] The present application drives the intermittent rotation work of the connecting handle 2, and the rotation shaft 705 is synchronously rotated through the driving shaft 9. In the rotation process, the bottom fixed transmission dial plate 704 is rotated, when the end of the transmission dial plate 704 is not in contact with the next set of locking wedge 702, at this time, the rotary disc 701 is in a fixed state with the connecting handle 2, and the transmission dial plate 704 in the rotating state pulls the second connecting spring 706 to be in a stretched state, when the end of the transmission dial plate 704 is in contact with the locking wedge 702 inserted into the locking groove, and the locking wedge 702 is extruded outward to be separated from the rotary disc 701, at this time, the unlocked rotary disc 701 is pulled to rotate under the action of the stretching elastic force of the second connecting spring 706, and the connecting handle 2 is synchronously rotated, and the rotary disc 701 is locked again when the locking groove on the rotary disc 701 is in correspondence with another set of locking wedge 702 and the locking wedge 702 is inserted into the locking groove, and the rotating connecting handle 2 drives the cutter body 3 to rotate, and the rotating angle of the cutter body 3 is switched;

[0058] Further, the linkage structure 8 comprises a transmission worm wheel 801 and a driving worm 802, the transmission worm wheel 801 is coaxially fixedly installed on the rotation shaft 705, the driving worm 802 is coaxially installed on the driving shaft 9 and is in meshing connection with the transmission worm wheel 801, and the driving shaft 9 can be rotated by an operator, the rotation shaft 705 is driven to rotate through the meshing of the transmission worm wheel 801 and the driving worm 802.

[0059] As shown in Figure 2 and Figure 4 In the embodiment of the present application, the clamping structure 6 comprises two sets of clamping sliding plates 602 and two pairs of limiting columns 601.

[0060] The two pairs of limiting columns 601 are respectively installed at two ends of the mounting handle 1, the limiting column 601 can be detachably installed on the two sides of the mounting handle 1 through mounting bolts, when the milling cutter is replaced, the two pairs of limiting columns 601 are installed at the two ends of the mounting handle 1, and other components in the clamping structure 6 are matched to clamp the mounting handle 1, the two sets of clamping sliding plates 602 are slidingly installed in the guide sliding rails 603 on the two side plates 401 of the bottom box 4, the two sets of clamping sliding plates 602 are provided with two sets of placement grooves for placing the end portions of the corresponding limiting columns 601, the clamping sliding plate 602 is provided with a fixing assembly 11 for locking the limiting column 601, and a plurality of guide columns 604 are fixedly installed at the bottom of the clamping sliding plate 602, the guide columns 604 are slidingly installed in the guide holes at the bottom of the guide sliding rails 603, and the fixing plates installed at the ends of the guide columns 604 are elastically connected to the bottom of the guide sliding rails 603 through the first reset spring 605, when the clamping sliding plate 602 slides to the limit position, the second locking assembly 12 on the side plate 401 of the bottom box 4 is used for locking the clamping sliding plate 602;

[0061] Specifically, when the clamping assembly fixes the mounting handle 1 in the tool holder, the two sets of limiting posts 601 on both sides of the mounting handle 1 are placed together in the placement grooves on the near side of the two sets of clamping slide plates 602, and the mounting handle 1 is pressed down. The two pairs of limiting posts 601 are pressed onto the clamping slide plates 602, which drives the two sets of clamping slide plates 602 to slide downward along the limiting direction of the guide slide rail 603. During this process, the first return spring 605 at the bottom of the clamping slide plate 602 is in a stretched state. When the clamping slide plate 602 slides to the bottom limit position of the guide slide rail 603, the fixing component 11 inside the two sets of clamping slide plates 602 extends to lock the two sets of limiting posts 601. When the clamping slide plate 602 slides down to the limit position, the second locking component 12 locks the connecting post 1204 on the side of the clamping slide plate 602, thereby fixing the clamping slide plate 602, the limiting posts 601 fixedly connected to it, and the mounting handle 1.

[0062] When it is necessary to unlock and remove the mounting handle 1, it can be unlocked by operating the second locking component 12. At this time, the clamping slide 602, which is detached from the second locking component 12, slides upward and resets under the action of the first reset spring 605. In addition, the fixing component 11 inside the clamping slide 602 disengages from the limiting post 601 during the upward sliding of the clamping slide 602 and loses its fixing function.

[0063] like Figure 4 As shown, in this embodiment of the invention, the fixing component 11 is installed in the mounting cavity within the clamping slide plate 602. It includes two sets of sliding arc blocks 1101, a double-ended lead screw 1102, a first transmission gear 1103, and a first fixed rack 1104. The two sets of sliding arc blocks 1101 are slidably installed on both sides of the mounting cavity, and the far ends of the two sets of sliding arc blocks 1101 are respectively provided with arc-shaped surfaces for adapting to the sides of the clamping limit post 601. The double-ended lead screw 1102 is rotatably installed in the mounting cavity, and its two ends are threadedly connected to the internal threaded holes at the near ends of the two sets of sliding arc blocks 1101. The first transmission gear 1103 is coaxially fixed. The first fixed rack 1104 is fixedly installed on the side plate 401 of the bottom box 4 and meshes with the first transmission gear 1103. In this invention, when the clamping slider is pressed down and slides, the first transmission gear 1103 meshes with the fixed rack 1104, which drives the double-ended screw 1102 and the first transmission gear 1103 to rotate synchronously. The transmission drives the sliding arc blocks 1101 at both ends of the double-ended screw 1102 to extend to both sides. When the clamping slide plate 602 slides to the lowest stroke, the two sets of sliding arc blocks 1101 are fully extended, pressing and fixing the ends of a pair of limit posts 601 on the same side.

[0064] When the clamping slide plate 602 is unlocked and slides upward to reset by the elastic support, the first transmission gear 1103 meshes with the fixed first fixed gear rack 1104 to rotate reversely, thereby driving the two groups of sliding arc blocks 1101 to reset and retract into the mounting cavity of the clamping slide plate 602.

[0065] As shown in Figure 4 and Figure 9 In the embodiment of the present application, the second locking assembly 12 comprises a limiting plate 1203, a pulling plate 1201 and a connecting column 1204, the connecting column 1204 is fixedly installed on the side of the corresponding clamping slide plate 602, the limiting plate 1203 is fixedly installed on the side plate 401 of the bottom box 4, and an arc-shaped limiting groove for limiting the rod of the connecting column 1204 is arranged on the limiting plate 1203, the pulling plate 1201 is slidingly installed in the communication groove formed on the side of the limiting plate 1203 away from the side plate 401, and the pulling plate 1201 is elastically connected with the limiting plate 1203 through a second reset spring 1202, and an arc-shaped guide surface is arranged on the end of the pulling plate 1201 slidingly inserted into the limiting plate 1203.

[0066] In the present application, the number of the connecting columns 1204 located on the side of the clamping slide plate 602 is multiple, and the other ends of the multiple connecting columns 1204 are fixedly connected through the mounting plate 15, when the clamping slide plate 602 slides to the bottom, the lowest connecting column 1204 is fixedly locked by the second locking assembly 12, and in the locking process, the lowest connecting column 1204 first slides along the arc-shaped guide surface of the end of the pulling plate 1201, the connecting column 1204 is extruded to slide out of the limiting plate 1203 during the sliding process, at this time, the second reset spring 1202 is in a stretched state, and after the connecting column 1204 completely slides into the arc-shaped limiting groove of the limiting plate 1203, the pulling plate 1201 is stretched by the elastic force of the second reset spring 1202, and the pulling plate 1201 is reinserted into the limiting plate 1203, and the connecting column 1204 is clamped and limited by the flat surface at the bottom of the pulling plate 1201.

[0067] As shown in Figure 4 and Figure 5As shown, in this embodiment of the invention, the transmission assembly 14 includes a drive plate 1406, a drive screw 1405, a rotating inner nut 1403, a second transmission gear 1404, and a second fixed rack 1401. The drive plate 1406 is vertically and slidably mounted on the inner side of the side plate 401 of the base box 4 via multiple sets of limiting rods 1402. One end of the drive screw 1405 is fixedly connected to one side of the drive plate 1406 connected to the side plate 401. The rotating inner nut 1403 is rotatably mounted on the corresponding side plate 401 of the drive plate 1406 and threadedly connected to the drive screw 1405. The second transmission gear 1404 is coaxially mounted on... On the outside of the rotating inner nut 1403, the second fixing rack 1401 is fixedly connected to the mounting plate 15 on the side connecting post 1204 of the corresponding clamping slide 602, and meshes with the second transmission gear 1404. When the clamping slide 602 slides down, it drives the mounting plate 15 and the second fixing rack 1401 fixedly connected to it to move down synchronously. The second fixing rack 1401 and the second transmission gear 1404 mesh and drive, driving the rotating inner nut 1403 to rotate accordingly. Then, the screw drive drives the drive screw 1405 and the drive plate 1406 guided and limited by the limit rod 1402 to move linearly, and the direction of movement is towards the center of the bottom box 4.

[0068] Furthermore, the power shaft 13 is rotatably mounted on the drive plate 1406, and the drive plate 1406 drives the power shaft 13 to move synchronously and linearly. Multiple sets of mounting pins 1301 are fixedly installed at one end of the power shaft 13 near the inner side of the bottom box 4. When the drive plate 1406 moves to its limit stroke, the mounting pins 1301 at the end of the power shaft 13 can be limited to insert into the meshing tooth surface 901 installed on the outer end face of the drive shaft 9. At this time, the operator can rotate the power shaft 13 and lock the mounting pins 1301 and the meshing tooth surface 901 to drive the drive shaft 9 to rotate.

[0069] In summary, this invention, through the design of the milling cutter disc body and the replacement base, allows the milling cutter disc body to be detachably mounted on the replacement base. Furthermore, the tool holder within the milling cutter disc body is designed to include a rotatably connected connecting handle 2 and a mounting handle 1, wherein the connecting handle 2 can be fixedly connected to the tool body 3 within the milling cutter disc body. This design facilitates convenient operation for the operator during use.

[0070] 1. When using the milling cutter head body of the present invention to perform metal cutting operations:

[0071] The milling cutter head body can be removed from the replacement base, and by rotating the locking nut 503 on the mounting handle 1, the two sets of locking blocks 502 are driven to be inserted into the locking holes on the connecting handle 2. After locking the mounting handle 1 and the connecting handle 2 of the tool holder, the tool holder is connected and fixed to the spindle of the machine tool for use.

[0072] 2. When the milling cutter is replaced using the milling cutter disc body in the application:

[0073] At this time, the two pairs of limiting columns 601 are installed on both sides of the mounting handle 1, and the two pairs of limiting columns 601 are connected with the placing grooves on the two groups of clamping sliding blocks on the replacement base. Then, the milling cutter disc body is pressed, driving the two groups of clamping sliding blocks to slide down. After the two groups of clamping sliding blocks slide down to the lowest stroke, the two groups of limiting columns 601 are tightly fixed by the two groups of sliding arc blocks 1101 in the clamping sliding block installation cavity. The clamping sliding block 602 is locked by the limiting action of the pulling plate 1201 in the second locking assembly 12. The driving shaft 13 on the driving plate 1406 is connected with the driving shaft 9 on the mounting handle 1 by the transmission assembly 14, so that the operator can control the rotation of the driving shaft 13, driving the driving shaft 9 and the intermittent rotation assembly 7 inside the mounting handle 1 to rotate. The intermittent rotation adjustment connecting handle 2 and the rotary angle of the cutter body 3 are adjusted, so that the installation surface of the cutter body 3 which needs to be replaced is rotated to the horizontal state in sequence, and the operator can use the disassembly tool to disassemble the milling cutter from the cutter body 3.

[0074] The preferred embodiments of the application have been described in detail above, but the application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the application.

Claims

1. A cutter head facilitating replacement of cutters, characterized in that, The milling cutter body can be detachably mounted on the replacement base; The milling cutter body includes a tool holder and a tool body (3), and the tool body (3) is provided with a mounting hole for mounting a milling cutter in a mounting groove on the side of the tool body (3). The tool holder includes a connecting handle (2) and a mounting handle (1). One end of the connecting handle (2) is fixedly connected to one side of the tool body (3), and the other end is rotatably inserted into a rotating cavity provided at the end of the mounting handle (1). The connecting handle (2) and the mounting handle (1) are locked by a first locking assembly (5). An intermittent rotation assembly (7) for intermittently rotating the connecting handle (2) is mounted at the end of the rotating cavity of the mounting handle (1). The intermittent rotation assembly (7) is in transmission connection with a driving shaft (9) on the mounting handle (1) through a linkage structure (8). The replacement base includes a bottom box (4) having a support seat (10) at one end for supporting the bottom of the tool body (3). The other end of the bottom box (4) is provided with a clamping structure (6), a transmission structure, and a power shaft (13). The clamping structure (6) is used to fix the mounting handle (1). The power shaft (13) is in transmission connection with the clamping structure (6) through the transmission structure. When the clamping structure (6) clamps and fixes the mounting handle (1), the power shaft (13) is in transmission connection with the driving shaft (9) on the mounting handle (1) through a transmission assembly (14). The intermittent rotation assembly (7) includes a rotating disc (701), a rotating shaft (705), and a plurality of locking wedges (702). The rotating disc (701) is coaxially fixedly installed on the end face of the connecting handle (2), and the side face is provided with a locking groove for locking the tip of the locking wedge (702). The number of locking wedges (702) is consistent with the number of milling cutters. A plurality of installation grooves for slidingly installing the corresponding locking wedges (702) are uniformly formed on the inner wall of the mounting handle (1). The locking wedges (702) are elastically installed in the corresponding installation grooves through a first connecting spring (703). The rotating shaft (705) is rotatably installed on the end face of the inner cavity of the mounting handle (1). A transmission lever (704) is fixedly installed on the end of the rotating shaft (705) close to the rotating disc (701). The transmission lever (704) is elastically connected to a fixed protrusion (707) eccentrically installed on the rotating disc (701) through a second connecting spring (706). The end of the transmission lever (704) can extrude the corresponding locking wedge (702) to make it retract into the locking groove.

2. The milling head of claim 1 wherein, The first locking assembly (5) includes two sets of limiting sliding plates (501) slidingly installed on the outer side of the mounting handle (1). One side of the limiting sliding plates (501) facing the connecting handle (2) is fixedly installed with a set of locking plug blocks (502). The other end is in transmission connection with a locking nut (503) rotatably installed on the outer side of the mounting handle (1) through a transmission thread. The side end face of the connecting handle (2) close to the mounting handle (1) is provided with a locking hole for inserting the locking plug block (502).

3. The milling head of claim 1 wherein, The linkage structure (8) comprises a transmission worm wheel (801) and a driving worm (802), the transmission worm wheel (801) is coaxially fixedly installed on the rotating shaft (705), and the driving worm (802) is coaxially installed on the driving shaft (9) and is in meshing connection with the transmission worm wheel (801).

4. The cutter head of claim 1 wherein, The clamping structure (6) comprises two groups of clamping sliding plates (602) and two pairs of limiting columns (601); The two pairs of limiting columns (601) are respectively installed at two ends of the mounting handle (1); The two groups of clamping sliding plates (602) are slidingly installed in guide sliding rails (603) on both sides of the bottom box (4), both sides of the clamping sliding plates (602) are provided with two groups of placing grooves for placing end portions of the corresponding limiting columns (601), the clamping sliding plates (602) are provided with fixing assemblies (11) for locking the limiting columns (601), and the bottom of the clamping sliding plates (602) is fixedly provided with a plurality of guide columns (604) which are slidingly installed in guide holes in the bottom of the guide sliding rails (603), and a fixing plate installed at the end of the plurality of guide columns (604) is elastically connected to the bottom of the guide sliding rails (603) through a first reset spring (605). When the clamping sliding plate (602) slides to the limit position, it is locked by the second locking assembly (12) on the side plate (401) of the bottom box (4).

5. The milling head of claim 4 wherein, The fixing assembly (11) is installed in a mounting cavity in the clamping sliding plate (602) and comprises two groups of sliding arc blocks (1101), a double-head screw rod (1102), a first transmission gear (1103) and a first fixed rack (1104). The two groups of sliding arc blocks (1101) are slidingly installed at two sides of the mounting cavity, and the distal ends of the two groups of sliding arc blocks (1101) are correspondingly provided with arc surfaces for adapting to the side surfaces of the pressing limiting columns (601). The double-head screw rod (1102) is rotatably installed in the mounting cavity, and the threaded pipes at both ends of the double-head screw rod (1102) are correspondingly threadedly connected to the inner threaded holes at the proximal ends of the two groups of sliding arc blocks (1101). The first transmission gear (1103) is coaxially and fixedly installed in the middle of the double-head screw rod (1102). The first fixed rack (1104) is fixedly installed on the side plate (401) of the bottom box (4) and is in meshing transmission with the first transmission gear (1103).

6. The milling head of claim 4 wherein, The second locking assembly (12) comprises a limiting plate (1203), a pulling plate (1201) and a connecting column (1204). The connecting column (1204) is fixedly installed on the side of the corresponding clamping sliding plate (602). The limiting plate (1203) is fixedly installed on the side plate (401) of the bottom box (4) and is provided with an arc limiting groove for limiting the rod body of the connecting column (1204). The pulling plate (1201) is slidingly installed in the communication groove on the side of the limiting plate (1203) away from the side plate (401) and is elastically connected to the limiting plate (1203) through a second reset spring (1202), and the slidingly inserted end of the pulling plate (1201) is provided with an arc guiding surface.

7. The cutter head of claim 1 wherein, The transmission assembly (14) comprises a driving plate (1406), a driving screw (1405), a rotary inner nut (1403), a second transmission gear (1404) and a second fixed rack (1401); The driving plate (1406) is vertically slidably installed in the inner side of the side plate (401) of the bottom box (4) through a plurality of limiting rods (1402); One end of the driving screw (1405) is fixedly connected with the driving plate (1406) on one side of the side plate (401); The rotary inner nut (1403) is rotatably installed on the side plate (401) corresponding to the driving plate (1406) and is in threaded connection with the driving screw (1405); The second transmission gear (1404) is coaxially installed on the outer side of the rotary inner nut (1403); The second fixed rack (1401) is fixedly connected with the corresponding clamping sliding plate (602) and is in meshing connection with the second transmission gear (1404).

8. The milling head of claim 1 wherein, The power shaft (13) is rotatably installed on the driving plate (1406) and is driven by the driving plate (1406) to synchronously linearly move, and a plurality of mounting nails (1301) are fixedly installed on one end of the power shaft (13) close to the inner side of the bottom box (4), and the mounting nails (1301) can be limitingly inserted into the meshing tooth surface (901) installed on the outer side end face of the driving shaft (9).

Images