Hard alloy cutting tool and clamping device for indexable blade of hard alloy cutting tool

Abstract

The invention discloses a hard alloy cutting tool and a clamping device for indexable blades thereof, and relates to the technical field of alloy cutters, the hard alloy cutting tool comprises a plurality of groups of blades which are rotationally and symmetrically arranged, the blades are connected with mounting screws, a clamping mechanism is arranged at the end parts of the blades, and the clamping mechanism is connected with a driving mechanism; the driving mechanism synchronously controls the clamping mechanism to be close to or separated from the edge of the blade, the blade is further connected with a transposition mechanism, the transposition mechanism comprises an abutting wheel, the abutting wheel detachably abuts against the abutting arc face of the end face of the blade, and when the abutting wheel rotates, the blade is driven to rotate around the axis of a mounting screw; the clamping mechanism abuts against and clamps the end face of the blade, blade cracking caused by blade movement is avoided, meanwhile, the blade of the blade is synchronously adjusted through the indexing mechanism, the abrasion area of the blade is avoided, the service life of the blade is effectively prolonged, and the cutting efficiency of the blade is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of alloy cutting tools, in particular to a hard alloy cutting tool and a clamping device of indexable inserts thereof. BACKGROUND

[0002] The hard alloy cutting tool is a tool for cutting processing made of hard alloy. It is an alloy material made of hard compound of refractory metal and binder metal through powder metallurgy process. It has the characteristics of high hardness, high wear resistance and good red hardness.

[0003] At present, the cutting tool for fixing alloy inserts on the market needs to be disassembled and stopped every time the cutting edge is adjusted when the insert is worn out, and frequent replacement and adjustment by manual work greatly affect the cutting processing efficiency and are not conducive to the establishment of unmanned production line. SUMMARY

[0004] The purpose of the present application is to provide a hard alloy cutting tool and a clamping device of indexable inserts thereof to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: A clamping device of indexable inserts, comprising a plurality of groups of rotationally symmetrical inserts, the inserts being connected with mounting screws, one end of the mounting screw being sleeved with the insert, the other end of the mounting screw being fixedly installed through threads, the end of the insert being provided with a clamping mechanism for limiting the axial movement of the insert on the mounting screw, the clamping mechanism being connected with a driving mechanism for synchronously controlling the clamping mechanism to approach or separate from the edge of the insert, the insert being further connected with an indexing mechanism, the indexing mechanism comprising an abutting wheel, the abutting wheel being detachably abutted on the abutting arc surface of the end face of the insert, the abutting wheel being rotated to drive the insert to rotate around the axis of the mounting screw.

[0006] As a further scheme of the present application, the clamping mechanism comprises a clamping fork, the clamping fork being connected with a plug-in rod, the clamping fork being installed back and forth through the plug-in rod, the clamping fork being abutted on the end face of the insert when it is extended to the limit position, one end of the plug-in rod away from the clamping fork being rotatably installed with a push-pull rod, the push-pull rod being connected with the driving mechanism.

[0007] As a further scheme of the present application, the driving mechanism comprises a lifting disc, a threaded rod being centrally fitted in the lifting disc, the threaded rod being connected with a driving part one, the push-pull rod being rotatably connected with the bottom of the lifting disc, the threaded rod being rotated under the driving of the driving part one.

[0008] As a further scheme of the present application, the abutting wheel is arranged opposite to the end of the blade and eccentrically, the edge of the abutting wheel abuts on the abutting arc surface of the end face of the blade at the farthest point from the axis of the blade, the indexing mechanism further comprises a matching shaft coaxially arranged with the abutting wheel, a hemispherical part is arranged at the end of the matching shaft, the hemispherical part is matched with an ejection slide groove, the hemispherical part and the ejection slide groove are in sliding fit, the hemispherical part slides along the ejection slide groove and drives the matching shaft and the abutting wheel to gradually approach the abutting arc surface in the process that the insertion rod carries the clamping fork to reach the end face of the blade, the edge of the abutting wheel and the abutting arc surface are in contact with each other when the clamping fork is extended to the limit position, and the matching shaft is connected with the power assembly.

[0009] As a further scheme of the present application, the power assembly comprises a matching pulley in sliding fit with the matching shaft, a magnetic suction disc is arranged on the insertion rod, the matching pulley and the magnetic suction disc are in mutual adsorption, a belt one and a belt two are sequentially arranged on the insertion rod, the belt two and the matching pulley are in mutual cooperation, the belt one is connected with a bevel gear set three, the bevel gear set three is connected with a matching gear, a transmission rod is inserted on the lifting disc, the transmission rod is connected with the upper end of the threaded rod to limit the frame, the end of the transmission rod is connected with a driving part two, the bottom of the transmission rod is provided with a driving gear, the bottom of the threaded rod is rotatably provided with a suspension rod, the suspension rod is provided with a driven gear in mesh with the driving gear, and the end of the suspension rod is provided with a gear disc.

[0010] The present application further provides a hard alloy cutting tool, which comprises the clamping device of the indexable blade and a tool, the edge of the tool is rotationally symmetrically provided with a plurality of mounting grooves, the edge of the mounting groove is provided with a screw hole, the mounting groove is used for accommodating the blade, the mounting screw is in threaded connection with the screw hole, the center of the tool is provided with a hollow groove, and the driving mechanism is arranged at the central part of the hollow groove.

[0011] As a further scheme of the present application, the mounting groove is provided with an insertion hole, the clamping mechanism and the insertion hole are in mutual insertion, and the ejection slide groove is arranged outside the insertion hole in the mounting groove.

[0012] As a further scheme of the present application: the driving part one comprises a driving rod one rotatably installed in the cutter, one end of the driving rod one is provided with a knob screw one, the other end of the driving rod one is connected with a bevel gear set one, the bevel gear set one is connected with a threaded rod, the end of the driving rod one close to the bevel gear set one is rotatably installed with a positioning rod one, the positioning rod one is provided with a matching strip one, the positioning rod one is matched and inserted between the cutter and the matching strip one, a nut one is arranged between the end of the positioning rod one and the cutter, the threaded rod is rotatably installed with a positioning rod two at the end of the bevel gear set one, the positioning rod two is provided with a U-shaped groove for accommodating the positioning rod one, the positioning rod two is provided with a matching strip two, the positioning rod two is matched and inserted between the cutter and the matching strip two, a nut two is arranged between the end of the positioning rod two and the cutter.

[0013] As a further scheme of the present application: the driving part two comprises a driving rod two rotatably installed between the cutter, one end of the driving rod two is provided with a knob screw two, the driving rod two is provided with a bevel gear set two between the transmission rod.

[0014] Compared with the prior art, the present application has the following advantages: (1) The blade is quickly installed by the installation screw, and the blade is limited by the clamping mechanism, so that the blade does not move back and forth along the axis direction of the installation screw during cutting process, the service life of the blade is effectively improved, the end face of the blade is abutted by the clamping mechanism, so that the self-rotation of the blade during cutting process is avoided, when the blade is worn, the synchronous adjustment of all blades can be realized by the indexing mechanism, the all cutting edges of the blade are maximized, and the cutting efficiency of the whole blade is ensured.

[0015] (2) The abutting wheel abuts on the abutting arc surface of the end face of the blade, when the abutting wheel rotates, the force acting on the abutting arc surface drives the blade to rotate around the installation screw, so that the rotation control of the blade is realized. The force acting on the abutting arc surface when the abutting wheel rotates is greater than the force acting on the end face of the blade by the clamping mechanism, so that the blade can be adjusted for wear, and the blade will not rotate during cutting process after adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a split structure diagram of the blade and the screw of the present application.

[0017] Figure 2 It is a whole structure diagram of the present application.

[0018] Figure 3 It is a structure diagram of the cutter in the present application.

[0019] Figure 4 It is the internal structure schematic view of the cutter in the application.

[0020] Figure 5 It is the cross-sectional structure schematic view of the cutter in the application.

[0021] Figure 6 It is Figure 5 The enlarged structure schematic view at A in the application.

[0022] Figure 7 It is the connection schematic view of the clamping mechanism and the driving mechanism in the application.

[0023] Figure 8 It is the installation schematic view of the threaded rod and the driving rod one in the application.

[0024] Figure 9 It is the installation schematic view of the indexing mechanism in the application.

[0025] Figure 10 It is the transmission structure schematic view of the abutting wheel in the application.

[0026] Figure 11 It is the installation structure schematic view of the abutting wheel in the application.

[0027] In the figure: 1, blade; 10, abutting camber; 11, installation screw; 2, cutter; 20, installation slot; 21, screw hole; 23, hollow slot; 24, ejection sliding slot; 25, plug-in hole; 3, clamping mechanism; 30, clamping fork; 31, plug-in rod; 32, push-pull rod; 4, driving mechanism; 40, lifting disc; 42, threaded rod; 43, driving rod one; 430, knob screw one; 44, bevel gear set one; 45, positioning rod one; 450, matching strip one; 46, nut one; 47, positioning rod two; 470, U-shaped slot; 471, matching strip two; 48, nut two; 5, indexing mechanism; 50, driving rod two; 500, knob screw two; 51, bevel gear set two; 52, limiting frame; 53, transmission rod; 54, driving gear; 55, suspension rod; 56, driven gear; 57, gear disc; 58, matching gear; 59, bevel gear set three; 510, belt one; 511, belt two; 512, abutting wheel; 513, magnetic suction disc; 514, hemispherical part; 515, matching shaft; 516, matching pulley. DETAILED DESCRIPTION

[0028] The technical solutions of the application will be further described in detail in combination with specific embodiments.

[0029] For example, Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 10As shown in the figure, a clamping device of indexable blade includes a plurality of groups of rotationally symmetrical blades 1, the blades 1 are connected with mounting screws 11, one end of the mounting screws 11 is sleeved with the blades 1, the other end of the mounting screws 11 is fixedly installed through threads, the end of the blade 1 is provided with a clamping mechanism 3, the clamping mechanism 3 is used for limiting the axial movement of the blade 1 on the mounting screw 11, the clamping mechanism 3 is connected with a driving mechanism 4, the driving mechanism 4 synchronously controls the clamping mechanism 3 to approach or separate from the edge of the blade 1, the blade 1 is also connected with an indexing mechanism 5, the indexing mechanism 5 includes an abutting wheel 512, the abutting wheel 512 is detachably abutted on an abutting arc surface 10 of the end face of the blade 1, the abutting wheel 512 drives the blade 1 to rotate around the axis of the mounting screw 11 when rotating.

[0030] Specifically, the blade 1 is quickly installed through the mounting screw 11, and the blade 1 is limited by the clamping mechanism 3, so as to avoid the back and forth movement of the blade 1 along the axial direction of the mounting screw 11 during the cutting process, effectively improve the service life of the blade 1, and at the same time, the clamping mechanism 3 abuts against the end face of the blade 1, so as to avoid the self-rotation of the blade 1 during the cutting process, and the indexing mechanism 5 can be combined to synchronously adjust all the blades 1 when the blade 1 is worn, so as to maximize the use of all the blade edge intervals of the blade 1, and at the same time, the wear of the blades 1 is avoided, and the cutting efficiency of the whole blade 1 is ensured.

[0031] More specifically, the abutting wheel 512 is abutted on the abutting arc surface 10 of the end face of the blade 1, when the abutting wheel 512 rotates, the force acting on the abutting arc surface 10 drives the blade 1 to rotate around the mounting screw 11, so as to realize the rotation control of the blade 1. The force acting on the abutting arc surface 10 when the abutting wheel 512 rotates is greater than the force acting on the end face of the blade 1 by the clamping mechanism 3, so as to drive the blade 1 to adjust the wear, and at the same time, the blade 1 will not rotate during the cutting process after the adjustment is completed.

[0032] Further, as shown in the figure, Figure 4 , Figure 7 The clamping mechanism 3 includes a clamping fork 30, the clamping fork 30 is connected with a plug-in rod 31, the clamping fork 30 is installed back and forth through the plug-in rod 31, the clamping fork 30 abuts against the end face of the blade 1 when extending to the limit position, one end of the plug-in rod 31 away from the clamping fork 30 is rotatably installed with a push-pull rod 32, the push-pull rod 32 is connected with the driving mechanism 4.

[0033] Further, as shown in the figure, Figure 4 , Figure 7As shown, the driving mechanism 4 comprises a lifting disc 40, a threaded rod 42 is fitted in the center of the lifting disc 40, a driving part one is connected to the threaded rod 42, the push-pull rod 32 is rotationally connected to the bottom of the lifting disc 40, and the threaded rod 42 rotates under the driving of the driving part one.

[0034] Specifically, the clamping fork 30 abuts against the end face of the blade 1 to limit the blade 1. The lifting disc 40 is used to control the push-pull rod 32 to perform the push-pull action, so as to synchronously control the insertion rod 31 to perform the insertion and extraction action, and further drive the clamping fork 30 to cooperate with or be separated from the end face of the blade 1. The clamping mechanism 3 facilitates the installation and disassembly of the blade 1, and ensures the stability of the blade 1 during cutting processing, so as to avoid the axial movement of the blade 1 and the cracking of the blade 1.

[0035] Further, as shown in Figure 6 、 Figure 7 、 Figure 10 、 Figure 11 The abutting wheel 512 is arranged opposite to and eccentric to the end of the blade 1, the edge of the abutting wheel 512 abuts against the abutting arc surface 10 on the end face of the blade 1 at the farthest point from the axis of the blade 1, the indexing mechanism 5 further comprises a cooperating shaft 515 coaxially installed with the abutting wheel 512, the end of the cooperating shaft 515 is provided with a hemispherical part 514, the hemispherical part 514 is cooperatively provided with an ejection sliding groove 24, the hemispherical part 514 and the ejection sliding groove 24 are in sliding cooperation, the hemispherical part 514 slides along the ejection sliding groove 24 and drives the cooperating shaft 515 and the abutting wheel 512 to gradually approach the abutting arc surface 10 in the process that the insertion rod 31 carrying the clamping fork 30 reaches the end face of the blade 1, the edge of the abutting wheel 512 and the abutting arc surface 10 are in contact with each other when the clamping fork 30 extends to the limit position, and the cooperating shaft 515 is connected with the power assembly.

[0036] Further, Figure 7 to as Figure 11As shown, the power assembly comprises a matching pulley 516 slidingly mounted with the matching shaft 515, the plug-in rod 31 is provided with a magnetic suction disc 513, the matching pulley 516 and the magnetic suction disc 513 are mutually adsorbed, the plug-in rod 31 is sequentially provided with a belt one 510 and a belt two 511, the belt two 511 and the matching pulley 516 are mutually matched, the belt one 510 is connected with the bevel gear set three 59, the bevel gear set three 59 is connected with a matching gear 58, the lifting disc 40 is plugged with a transmission rod 53, the transmission rod 53 is connected with the upper end of the threaded rod 42 to limit the bracket 52, the end of the transmission rod 53 is connected with a driving part two, the bottom of the transmission rod 53 is provided with a driving gear 54, the bottom of the threaded rod 42 is rotatably mounted with a suspension rod 55, the suspension rod 55 is provided with a driven gear 56 which is mutually meshed with the driving gear 54, the end of the suspension rod 55 is provided with a gear disc 57, and the matching gear 58 is mutually meshed with the inner ring of the gear disc 57.

[0037] Specifically, in order to facilitate the adjustment of the worn parts of the blades 1, the abutting arc surface 10 provided on the end face of the blade 1 interacts with the abutting wheel 512, when the clamping mechanism 3 and the end face of the blade 1 are matched, the abutting wheel 512 is stretched out outward under the cooperation of the ejection sliding groove 24, and finally the edge of the abutting wheel 512 is pressed on the abutting arc surface 10. When it is necessary to rotate the blade 1 to avoid the worn area, the matching shaft 515 is rotated under the cooperation of the power assembly, which will drive the blade 1 to rotate synchronously under the rotating force of the abutting wheel 512, so as to turn the cutting edge to the unused area, while ensuring the consistency of all the blades 1.

[0038] More specifically, when it is necessary to replace the blades 1 as a whole, the clamping fork 30 is controlled to be separated from the end face of the blade 1 in cooperation with the clamping mechanism 3. During the separation process, the abutting wheel 512 will be separated from the abutting arc surface 10 of the blade 1 due to the provision of the ejection sliding groove 24. At this time, the clamping fork 30 releases the abutting of the end face of the blade 1, and the abutting wheel 512 also releases the abutting of the blade 1. By screwing the mounting screw 11, the blade 1 can be disassembled.

[0039] More specifically, the vertically arranged transmission rod 53 synchronously drives the gear disc 57 at the end to rotate, which can synchronously control the matching gears 58 arranged in distribution, so as to control the abutting wheel 512 to rotate in cooperation with the bevel gear set three 59, the belt one 510, the belt two 511 and the matching pulley 516, thereby realizing the adjustment of the cutting edge of the blade 1. The matching pulley 516 is matched with the magnetic suction disc 513, and the matching pulley 516 will always maintain the adsorption with the magnetic suction disc 513 under the ejection of the ejection sliding groove 24, so as to ensure the reliable transmission of the belt two 511.

[0040] The application also provides a hard alloy cutting tool, such as Figures 1 to 5 As shown in the figure, the clamping device including the indexable insert is also provided with a tool 2, the edge of the tool 2 is provided with a plurality of mounting slots 20, the edge of the mounting slot 20 is provided with a screw hole 21, the mounting slot 20 is used for receiving the insert 1, the mounting screw 11 is threadedly connected with the screw hole 21, the center of the tool 2 is provided with a hollow slot 23, and the driving mechanism 4 is arranged at the center of the hollow slot 23.

[0041] Further, as shown in the figure, Figures 4 to 6 The mounting slot 20 is provided with a plug hole 25, the clamping mechanism 3 is plugged with the plug hole 25, and the ejection sliding groove 24 is arranged outside the plug hole 25 in the mounting slot 20.

[0042] Further, as shown in the figure, Figure 5 , Figure 7 , Figure 8 The driving part one includes a driving rod one 43 rotatably mounted in the tool 2, one end of the driving rod one 43 is provided with a knob screw one 430, the other end of the driving rod one 43 is connected with a bevel gear set one 44, the bevel gear set one 44 is connected with the threaded rod 42, the end of the driving rod one 43 close to the bevel gear set one 44 is rotatably mounted with a positioning rod one 45, the positioning rod one 45 is provided with a matching strip one 450, the positioning rod one 45 is plugged with the tool 2 in combination with the matching strip one 450, the end of the positioning rod one 45 is provided with a nut one 46 between the tool 2, the end of the threaded rod 42 located in the bevel gear set one 44 is rotatably mounted with a positioning rod two 47, the positioning rod two 47 is provided with a U-shaped groove 470 for accommodating the positioning rod one 45, the positioning rod two 47 is provided with a matching strip two 471, the positioning rod two 47 is plugged with the tool 2 in combination with the matching strip two 471, and the end of the positioning rod two 47 is provided with a nut two 48 between the tool 2.

[0043] Specifically, in order to facilitate the control of the clamping mechanism 3, the driving rod one 43 is rotatably mounted on the tool 2, when the lifting disc 40 needs to be controlled to lift, only the driving rod one 43 is twisted in combination with the wrench, the threaded rod 42 is driven to rotate, so that the lifting disc 40 is controlled to lift, and the clamping mechanism 3 at the end interacts with the insert 1.

[0044] More specifically, in order to ensure reliable engagement between the bevel gear set 44 and reliable installation between the components and the cutter 2, the driving rod 43 is positioned and installed between the positioning rod 45, the matching strip 450, the nut 46 and the cutter 2, the top of the threaded rod 42 is positioned and installed through the positioning rod 47 and the nut 48, the U-shaped groove 470 is arranged in the positioning rod 47, and the positioning rod 47 can be avoided when the positioning rod 47 is installed. Interference of the positioning rod 45, it should be noted that the diameter of the positioning rod 45 is smaller than the diameter of the positioning rod 47, so that the positioning rod 45 and the U-shaped groove 470 can be matched with each other, and the positioning rod 47 also has a better positioning effect on the threaded rod 42.

[0045] Further, as shown in Figure 4 、 Figure 9 The driving part two includes a driving rod two 50 rotatably installed between the cutter 2, one end of the driving rod two 50 is provided with a knob screw two 500, and the driving rod two 50 is provided with a bevel gear set two 51 between the transmission rod 53.

[0046] Specifically, the knob screw two 500 can be twisted by a wrench to drive the driving rod two 50 to rotate, so that power is transmitted to the transmission rod 53, and in order to ensure the limiting installation of the transmission rod 53, the limiting frame 52 is arranged between the threaded rod 42 and the transmission rod 53, and under the action of the limiting frame 52, the transmission rod 53 can reliably transmit power and will not cause the power to be disconnected between the bevel gear set two 51.

[0047] The working principle of the embodiment of the application is as follows: As Figures 1-11As shown, the blade 1 is quickly installed by the mounting screw 11, and the blade 1 is limited by the clamping mechanism 3 to avoid the back and forth movement of the blade 1 along the axis direction of the mounting screw 11 during the cutting process, effectively improving the service life of the blade 1. At the same time, the clamping mechanism 3 abuts against the end face of the blade 1, which can avoid the self-rotation of the blade 1 during cutting. When the blade 1 is worn, the index mechanism 5 can be used to adjust all the blades 1 synchronously, maximize the use of all the blade edges of the blade 1, and avoid the uneven wear between the blades 1, ensuring the overall cutting efficiency of all the blades 1. The abutting wheel 512 abuts against the abutting arc surface 10 on the end face of the blade 1. When the abutting wheel 512 rotates, the force acting on the abutting arc surface 10 drives the blade 1 to rotate around the mounting screw 11, thereby realizing the rotation control of the blade 1. The force acting on the abutting arc surface 10 when the abutting wheel 512 rotates is greater than the force acting on the end face of the blade 1 by the clamping mechanism 3, so that the blade 1 can be driven to wear adjustment, and the blade 1 will not rotate during cutting after adjustment. The clamping fork 30 abuts against the end face of the blade 1 to limit the blade 1. The push-pull rod 32 is pushed and pulled by the lifting disc 40 to realize the synchronous control of the plug-in rod 31 to realize the plug-in and pull-out action, thereby driving the clamping fork 30 to cooperate with or separate from the end face of the blade 1. The clamping mechanism 3 is convenient for the installation and disassembly of the blade 1, and ensures the stability of the blade 1 during cutting to avoid the axial movement of the blade 1 causing the blade 1 to crack. In order to adjust the worn part of the blade 1, the abutting arc surface 10 provided on the end face of the blade 1 interacts with the abutting wheel 512. When the clamping mechanism 3 cooperates with the end face of the blade 1, the abutting wheel 512 extends outward under the cooperation of the ejection chute 24, and finally the edge of the abutting wheel 512 is pressed on the abutting arc surface 10. When it is necessary to drive the blade 1 to rotate to avoid the wear area, the cooperating shaft 515 is rotated by the power assembly, and under the rotating force of the abutting wheel 512, the blade 1 is synchronously rotated, so that the cutting edge is turned to the unused area, and the consistency of all the blades 1 is ensured. When the blade 1 needs to be replaced as a whole, the clamping fork 30 is separated from the end face of the blade 1 by the clamping mechanism 3. During the separation process, the abutting wheel 512 is separated from the abutting arc surface 10 of the blade 1 due to the setting of the ejection chute 24. At this time, the clamping fork 30 releases the abutment of the end face of the blade 1, and the abutting wheel 512 also releases the abutment of the blade 1. By rotating the mounting screw 11, the blade 1 can be disassembled. The gear disc 57 at the end is rotated by the vertically arranged transmission rod 53, and the gear disc 57 can synchronously control the cooperating gear 58 arranged in distribution, thereby controlling the abutting wheel 512 to rotate by the bevel gear set three 59, the belt one 510, the belt two 511 and the cooperating pulley 516, and realizing the adjustment of the cutting edge of the blade 1.The matching belt wheel 516 is matched with the magnetic suction disc 513, the matching shaft 515 is under the ejection of the ejection chute 24, the matching belt wheel 516 will always keep the adsorption with the magnetic suction disc 513, so that the reliable transmission of the belt two 511 is guaranteed. In order to facilitate the control of the clamping mechanism 3, the driving rod one 43 is installed on the tool 2 by horizontal rotation, when the lifting disc 40 needs to be controlled to lift, only the driving rod one 43 is twisted by the wrench, the threaded rod 42 is driven to rotate, so that the lifting disc 40 is controlled to lift, the end clamping mechanism 3 and the blade 1 are driven to interact. In order to guarantee the reliable meshing between the bevel gear set one 44 and the reliable installation between the parts and the tool 2, the driving rod one 43 is positioned and installed between the tool 2 through the positioning rod one 45, the matching strip one 450 and the nut one 46, the top of the threaded rod 42 is positioned and installed through the positioning rod two 47 and the nut two 48, the U-shaped groove 470 is arranged in the positioning rod two 47, when the positioning rod two 47 is installed, the interference of the positioning rod one 45 can be avoided, it should be noted that the diameter of the positioning rod one 45 is smaller than the diameter of the positioning rod two 47, the positioning rod one 45 is matched with the U-shaped groove 470, and the positioning rod two 47 has a better positioning effect on the threaded rod 42. The driving rod two 50 can be rotated by twisting the knob screw two 500 by the wrench, so that power is transmitted to the transmission rod 53, in order to guarantee the limiting installation of the transmission rod 53, the limiting frame 52 is arranged between the threaded rod 42 and the transmission rod 53, under the action of the limiting frame 52, the transmission rod 53 can reliably transmit power and will not cause the power to be disconnected between the bevel gear set two 51.

[0048] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0049] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for the sake of clarity, the skilled in the art should consider the specification as a whole, the technical solutions in each embodiment can also be combined to form other embodiments that can be understood by the skilled in the art.

Claims

1. A clamping device for an indexable cutting blade, comprising multiple sets of rotationally symmetrically arranged cutting blades (1), each cutting blade (1) being connected to a mounting screw (11), one end of each mounting screw (11) being sleeved between itself and the cutting blade (1), and the other end of each mounting screw (11) being fixedly installed by a thread, characterized in that, The blade (1) is provided with a clamping mechanism (3) at its end. The clamping mechanism (3) is used to restrict the blade (1) from axial movement on the mounting screw (11). The clamping mechanism (3) is connected to a driving mechanism (4). The driving mechanism (4) synchronously controls the clamping mechanism (3) to approach or disengage from the edge of the blade (1). The blade (1) is also connected to a rotation mechanism (5). The rotation mechanism (5) includes an abutting wheel (512). The abutting wheel (512) is separably abutted on the abutting arc surface (10) of the end face of the blade (1). When the abutting wheel (512) rotates, it drives the blade (1) to rotate around the axis of the mounting screw (11).

2. The clamping device for an indexable cutting tool according to claim 1, characterized in that, The clamping mechanism (3) includes a clamping fork (30), which is connected to a plug rod (31). The clamping fork (30) is retracted and extended through the plug rod (31). When the clamping fork (30) is extended to its limit position, it abuts against the end face of the blade (1). A push-pull rod (32) is rotatably installed at the end of the plug rod (31) away from the clamping fork (30). The push-pull rod (32) is connected to the drive mechanism (4).

3. The clamping device for an indexable cutting tool according to claim 2, characterized in that, The drive mechanism (4) includes a lifting plate (40), a threaded rod (42) is installed at the center of the lifting plate (40), the threaded rod (42) is connected to a drive unit, the push-pull rod (32) is rotatably connected to the bottom of the lifting plate (40), and the threaded rod (42) rotates under the drive of the drive unit.

4. The clamping device for an indexable cutting tool according to claim 3, characterized in that, The abutting wheel (512) is eccentrically positioned opposite the end of the blade (1). The farthest point of the edge of the abutting wheel (512) from the axis of the blade (1) abuts against the abutting arc surface (10) on the end face of the blade (1). The indexing mechanism (5) also includes a mating shaft (515) coaxially mounted with the abutting wheel (512). The end of the mating shaft (515) is provided with a hemispherical part (514). The hemispherical part (514) is provided with an ejection groove (24). 14) Sliding engagement with the ejector groove (24), during the process of the insertion rod (31) carrying the clamping fork (30) to the end face of the blade (1), the hemispherical part (514) slides along the ejector groove (24) and drives the mating shaft (515) and the abutting wheel (512) to gradually approach the abutting arc surface (10). When the clamping fork (30) extends to the limit, the edge of the abutting wheel (512) contacts the abutting arc surface (10), and the mating shaft (515) is connected to the power assembly.

5. The clamping device for an indexable cutting tool according to claim 4, characterized in that, The power assembly includes a pulley (516) slidably mounted to a mating shaft (515), a magnetic chuck (513) on the plug rod (31), the pulley (516) and the magnetic chuck (513) attracting each other, a belt (510) and a belt (511) are sequentially mounted on the plug rod (31), the belt (511) and the pulley (516) engaging with each other, the belt (510) is connected to a bevel gear set (59), the bevel gear set (59) is connected to a mating gear (58), and the lifting plate (40) A transmission rod (53) is inserted into the upper part of the transmission rod (53) and the upper end of the threaded rod (42) is connected to a limit bracket (52). The end of the transmission rod (53) is connected to a second drive unit. A drive gear (54) is provided at the bottom of the transmission rod (53). A suspension rod (55) is rotatably mounted at the bottom of the threaded rod (42). A driven gear (56) that meshes with the drive gear (54) is provided on the suspension rod (55). A gear disk (57) is provided at the end of the suspension rod (55). The mating gear (58) meshes with the inner ring of the gear disk (57).

6. A cemented carbide cutting tool, comprising a clamping device for an indexable insert as described in claim 5, characterized in that, It also includes a cutting tool (2), which has multiple mounting slots (20) arranged symmetrically on its edge. The mounting slots (20) have screw holes (21) on their edges. The mounting slots (20) are used to store the blade (1). The mounting screw (11) is threadedly connected to the screw hole (21). The center of the cutting tool (2) has a hollow groove (23), and the driving mechanism (4) is located at the center of the hollow groove (23).

7. A cemented carbide cutting tool according to claim 6, characterized in that, The mounting groove (20) is provided with a plug hole (25), the clamping mechanism (3) is plugged into the plug hole (25), and the ejection groove (24) is provided on the outside of the plug hole (25) in the mounting groove (20).

8. A cemented carbide cutting tool according to claim 6, characterized in that, The drive unit includes a drive rod (43) rotatably mounted inside the cutter (2). One end of the drive rod (43) is provided with a knob screw (430), and the other end of the drive rod (43) is connected to a bevel gear set (44). The bevel gear set (44) is connected to a threaded rod (42). A positioning rod (45) is rotatably mounted on the end of the drive rod (43) near the bevel gear set (44). A mating strip (450) is provided on the positioning rod (45). The positioning rod (45) engages with the cutter (2) in conjunction with the mating strip (450). The positioning rod (45) is connected by a nut (46) between its end and the cutting tool (2). The threaded rod (42) is rotatably mounted on the end of the bevel gear set (44). The positioning rod (47) has a U-shaped groove (470) for accommodating the positioning rod (45). The positioning rod (47) has a mating strip (471) on it. The positioning rod (47) is connected to the cutting tool (2) by mating strip (471). The end of the positioning rod (47) is connected to the cutting tool (2).

9. A cemented carbide cutting tool according to claim 6, characterized in that, The second drive unit includes a second drive rod (50) rotatably mounted between the second drive rod (2) and the cutter (2). One end of the second drive rod (50) is provided with a second knob screw (500). A second bevel gear set (51) is provided between the second drive rod (50) and the transmission rod (53).

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