Tooth clutch cutter system

Abstract

The utility model relates to a tooth-shaped clutch cutter system which comprises a sleeve, a sleeving opening is formed in the center of the front end of the sleeve, a cavity communicated with the sleeving opening and the rear end of the sleeve is formed in the center of the sleeve, and a connecting rod capable of moving in the axial direction is arranged in the cavity. An oil cylinder fixedly connected with the sleeve is arranged at the rear end of the sleeve, and a piston rod of the oil cylinder is connected with the rear end of the connecting rod; a pull rod is arranged at the part, positioned at the front end of the connecting rod, of the cavity; the rear end of the pull rod is fixedly connected with the front end of the connecting rod; a pull claw movably connected with the pull rod is arranged at the front end of the pull rod; a knife handle matched with the sleeving opening in an inserted mode is arranged in the sleeving opening, a blind rivet is arranged in the center of the rear end of the knife handle, and the pull claw is clamped outside the blind rivet. According to the tooth-shaped clutch tool system, the tool pulling force is enhanced, the tool rest is positioned through the tooth-shaped clutch, the bearing face is enlarged, the heavy-load machining capacity and the high-precision machining capacity can be better kept, the stability of the tool rest is good, and the safety coefficient and precision of machining are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical lathe processing field especially relates to a tooth profile clutch tool system. BACKGROUND

[0002] Numerical control processing is strict to rigidity, accuracy, durability and dynamic balance performance of tool, so the tool holder used for connecting tool on numerical control machine tool is also very important, numerical control lathe adopts automatic tool changer, namely existing ATC tool changer, so the difficulty of disassembling and assembling and the firmness of tool holder are very critical, which relates to the stability of tool assembly.

[0003] The tool holder used in the existing ATC tool changer is BT50 tool holder, which is in conical surface contact or double surface contact of conical surface plus gasket with the sleeve of tool system, but the stability of the two contact modes is not good, the disadvantage of BT50 tool holder conical surface contact mode is that BT tool holder is centered, when single force is applied, the tool holder will slightly shift to the right side, affecting the machining accuracy, and the disadvantage of double surface contact of conical surface plus gasket is that when machining is subjected to circumferential cutting force, the positioning block and positioning slot of tool holder are tightly fitted, but after long-term tool changing friction, once gap is generated, accuracy cannot be ensured.

[0004] And the tension bolt used by BT50 tool holder has a tension force of 1.8 tons, which is not rigid enough when applied to heavy cutting tool holder, and the effect of heavy load machining and high precision machining is not good, and the distance between the existing broach oil cylinder and the broach claw is too long, the tension force decays, the broaching force is not strong, the tool holder is easy to lose stability, and the safety factor of tool machining is not high. SUMMARY

[0005] The utility model solves the technical problem that a tooth profile clutch tool system with strong broaching force is provided.

[0006] In order to solve the above technical problem, the utility model is realized by the following technical scheme:

[0007] A kind of tooth clutch cutter system, including sleeve, the front end of the sleeve is provided with sleeve interface in the center, the cavity is provided in the center and is communicated with the rear end of sleeve interface, the connecting rod of being able to axial activity is provided in the cavity;The rear end of the sleeve is provided with the oil cylinder fixedly connected therewith, the piston rod of oil cylinder is connected together with the rear end of connecting rod, it can push connecting rod and move forward and backward in the cavity;The part of the cavity located at the front end of connecting rod is provided with pull rod, the rear end of pull rod is fixedly connected together with the front end of connecting rod, connecting rod can push pull rod and move synchronously;The front end of the pull rod is provided with pull pawl movably connected therewith, pull pawl opens when pull rod pushes pull pawl forward, and pull pawl is clamped when pull rod drives pull pawl backward;The sleeve interface is provided with tool shank insertedly matched therewith, the rear end of tool shank is provided with pull pin in the center, the pull pawl is clamped in the outside of pull pin, the front end of tool shank is located at the outside of the front end of sleeve, and the tool holder fixedly connected with the front end of tool shank is provided on the front end of tool shank, the rear end face of tool holder and the front end face of sleeve correspond to each other.

[0008] Further, the front end of the sleeve is provided with tooth clutch female fixedly connected therewith, and the tooth clutch female is in the form of a circular ring structure and is sleeved on the outside of the sleeve interface;The rear end of the tool holder is provided with tooth clutch male fixedly connected therewith, and the tooth clutch male is in the form of a circular ring structure and is sleeved on the outside of the tool shank, the tooth clutch male and the tooth clutch female correspond to each other in front and back and are in toothed engagement.

[0009] Further, the front end of the sleeve is provided with a dust ring at a position outside the tooth clutch female.

[0010] Further, the dust ring is in the form of a "┌" shaped structure, the top of the dust ring is provided with a connecting hole communicating upward and downward, the inside surface of the dust ring is provided with an annular embedding groove along the circumference at a position close to the lower end, and a sealing ring is embedded in the embedding groove.

[0011] Further, the connecting rod is provided with a limiting protrusion protruding radially at a position close to the central segment on the outside of the connecting rod, a spring is sleeved on the outside of the connecting rod at a position in front of the limiting protrusion, a butterfly spring pad is sleeved on the front end of the spring, and the front end of the butterfly spring pad abuts against an annular protrusion provided in the cavity.

[0012] Further, the front end of the connecting rod is provided with a threaded connecting hole in the center, and the rear end of the pull rod is screwed into the threaded connecting hole.

[0013] Further, the pull rod is provided with a clamping groove at a position close to the front end on the outside of the pull rod, the rear end of the pull pawl is clamped in the clamping groove, the pull pawl is provided with a pressing block protruding radially at a position close to the rear end on the outside of the pull pawl, the cavity is provided with an extrusion block protruding radially at a position corresponding to the outside of the pull pawl, and the pressing block can abut against the extrusion block in front.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: the gear-shaped clutch cutter system has the oil cylinder close to the pull claw, the pull cutter force is enhanced, the cutter holder positioning is adopted by the gear-shaped clutch, the gear-shaped clutch female disc is installed on the sleeve end face, the gear-shaped clutch male disc is installed on the cutter holder, the teeth of the gear-shaped clutch male disc and the gear-shaped clutch female disc are positioned, there is no gap in the circumferential direction, the cutter holder bearing surface is increased, the ability of heavy load processing and the ability of high precision processing can be better maintained, the stability of the cutter holder is good, and the safety factor and the precision of processing are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the embodiment, it should be understood, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0016] Figure 1 It is a side surface structure sectional view of a gear-shaped clutch cutter system of the utility model;

[0017] Figure 2 It is a connecting rod, pull rod and pull claw assembly structure schematic view in a gear-shaped clutch cutter system of the utility model;

[0018] Figure 3 It is a local structure schematic view under the pull claw clamping state in a gear-shaped clutch cutter system of the utility model;

[0019] Figure 4 It is a dust ring cross section structure schematic view in a gear-shaped clutch cutter system of the utility model.

[0020] In the drawing: 1, sleeve;11, cavity;12, sleeve interface;13, push block;2, oil cylinder;21, piston rod;3, connecting rod;31, limit protrusion;32, spring;33, butterfly spring pad;34, threaded connection hole;4, pull rod;41, clamping groove;5, pull claw;51, pressing block;6, tool shank;61, pull pin;62, cutter holder;7, gear-shaped clutch female disc;8, gear-shaped clutch male disc;9, dust ring;91, connecting hole;92, embedding groove;93, sealing ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application. It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present application, it should be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0023] In addition, if the terms "horizontal", "vertical" and the like appear, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure or component must be completely horizontal, but can be slightly inclined.

[0024] In the description of the embodiments of the present application, "a plurality of" represents at least 2.

[0025] In the description of the embodiments of the present application, it should also be explained that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connected", "connected" appear, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Example

[0027] Please refer to the instruction manual attached. Figure 1 As shown, the instruction manual is attached. Figure 1 The diagram shows the internal structure of a toothed clutch tool system according to this utility model, used for clamping CNC tool holders. The toothed clutch tool system includes a sleeve 1, with a conical opening 12 at the center of its front end, which can engage with a tool holder 6. The tool holder 6 is inserted into the opening 12, and a pull stud 61 (CAT50 tension bolt) with a tensioning force of 3.6 tons is located at the center of the rear end of the tool holder 6. The front end of the tool holder 6 is located outside the front end of the sleeve 1, and a tool holder 62 is fixedly connected to it. The tool holder 62 is used for mounting CNC tools, and its rear end face corresponds to the front end face of the sleeve 1. To ensure a circumferential gap-free connection between the tool holder 62 and the sleeve 1, the bearing surface of the tool holder 62 is increased to better maintain heavy-duty machining and high-precision machining capabilities. The sleeve 1 has a toothed clutch mother disc 7 fixedly connected to its front end. The toothed clutch mother disc 7 has a circular structure and is fitted onto the outside of the sleeve interface 12 and fixedly connected to the front end of the sleeve 1 with screws. The tool holder 62 has a toothed clutch daughter disc 8 fixedly connected to its rear end. The toothed clutch daughter disc 8 has a circular structure and is fitted onto the outside of the tool holder 6. The toothed clutch daughter disc 8 and the rear end of the tool holder 62 are fixedly connected together with screws. The toothed clutch daughter disc 8 and the toothed clutch mother disc 7 are corresponding front to back and mesh with each other. In order to prevent the waste chips during machining from entering between the meshing toothed clutch mother disc 7 and the toothed clutch daughter disc 8 and affecting their meshing accuracy, a dustproof ring 9 is provided at the front end of the sleeve 1 on the outside of the toothed clutch mother disc 7. To ensure the dustproof effect and not interfere with the toothed clutch mother disc 7 and the toothed clutch daughter disc 8, please refer to the appendix of the instruction manual. Figure 4As shown, the cross section of the dustproof ring 9 is "┐" shaped structure, the top is provided with a connecting hole 91, the dustproof ring 9 is fixedly connected to the outside of the tooth-shaped clutch female disc 7 at the front end of the sleeve 1 through the connecting hole 91, the tooth-shaped clutch female disc 7 is wrapped in the dustproof ring 9, and when the tooth-shaped clutch male disc 8 cooperates with the tooth-shaped clutch female disc 7, the tooth-shaped clutch male disc 8 and the tooth-shaped clutch female disc 7 are wrapped in the dustproof ring 9, in order to avoid the waste dust penetrating through the gap between the dustproof ring 9 and the tooth-shaped clutch male disc 8, the inner side of the dustproof ring 9 is provided with an annular embedding groove 92 near the lower end along the circumference, the sealing ring 93 is embedded in the embedding groove 92, the sealing ring 93 is in contact with the outer side of the tooth-shaped clutch male disc 8, the sealing effect is better, and the waste dust is prevented from penetrating; the center of the sleeve 1 is provided with a connecting sleeve interface 12 and a cavity 11 at the rear end, the connecting rod 3 axially movably arranged in the cavity 11, the connecting rod 3 is provided with a radially protruding limiting protrusion 31 near the center segment, the limiting protrusion 31 is arranged at 2 / 3 position of the connecting rod 3 from front to back, and is in sliding cooperation with the cavity 11, it should be noted that the movement track of the limiting protrusion 31 will not exceed the rear end of the cavity 11; in order to enhance the pulling force of the connecting rod 3, referring to the drawings Figure 2 As shown, the connecting rod 3 is sleeved with a spring 32 at the front side of the limiting protrusion 31, and a butterfly spring pad 33 is sleeved at the front end of the spring 32, the cavity 11 is provided with a ring-shaped protrusion protruding radially towards the center direction near the middle rear segment, the front end of the connecting rod 3 passes through the center hole of the ring-shaped protrusion and is in clearance cooperation with the ring-shaped protrusion, the front end of the butterfly spring pad 3 is in contact with the rear end face of the ring-shaped protrusion, thereby limiting the forward tension of the spring 32, making the spring 32 tension backward, and thereby pressing the limiting protrusion 31 on the connecting rod 3, so that the connecting rod 3 has a rearward force; the front end of the connecting rod 3 is provided with a threaded connecting hole 34; referring to the drawings Figure 1 As shown, the rear end of the sleeve 1 is provided with an oil cylinder 2 fixedly connected thereto, the oil cylinder 2 is closer to the front end of the sleeve 1, and thus is closer to the pull claw 5, thereby enhancing the pulling force of the pull claw 5; the front end of the piston rod 21 of the oil cylinder 2 is fixedly connected with the rear end of the connecting rod 3, the oil cylinder 2 can drive the connecting rod 3 to move forward and backward in the cavity 11 through the piston rod 21, when the piston rod 21 pulls the connecting rod 3 backward, the spring 32 outside the connecting rod 3 makes the connecting rod 3 have a stronger backward force; referring to the drawings Figure 2As shown, the cavity 11 is located at the front end of the connecting rod 3, provided with a pull rod 4, the rear end of the pull rod 4 is fixedly connected with the front end of the connecting rod 3, it should be noted that the outer part of the pull rod 4 near the rear end is provided with an external thread, which is screwed with the threaded hole 34 at the end of the connecting rod 3, the rear end of the pull rod 4 is screwed in the threaded hole 34, the pull rod 4 is fixedly connected with the front end of the connecting rod 3, the connecting rod 3 can push the pull rod 4 to move forward and backward synchronously; the front end of the pull rod 4 is provided with a pull pawl 5 movably connected therewith, in order to facilitate the assembly of the pull pawl 5, the outer part of the pull rod 4 near the front end is provided with a clamping groove 41, the rear end of the pull pawl 5 is clamped in the clamping groove 41, it should be noted that the pull pawl 5 is a four-petal pawl, the stress during broaching is more balanced, the pull pawl 5 and the sleeve part of the clamping groove 41 have a gap, which facilitates the swing of the rear end of the pull pawl 5; in order to realize the opening and closing of the pull pawl 5, refer to the drawings Figure 3 As shown, the outer part of the pull pawl 5 near the rear end is provided with a radially protruding pressing block 51, the front end surface of the pressing block 51 is inclined, the part corresponding to the outer side of the pull pawl 5 in the cavity 11 is provided with a radially protruding extrusion block 13, the rear end surface of the extrusion block 13 is inclined, when the pull rod 4 pulls the pull pawl 5 to move backward, after the pressing block 51 moves to the rear side of the extrusion block 13, the front end of the pull pawl 5 is retracted into the cavity 11 along with the pull rod 4, the part near the front end of the outer part is restricted and extruded by the front end of the cavity 11 to be gathered towards the center of the cavity 11, realizing the clamping of the pull pawl 5, when the pull rod 4 pushes the pull pawl 5 forward, the front end of the pull pawl 5 is mostly stretched out of the outer side of the front end of the cavity 11, the front end of the pull pawl 5 gradually loses the extrusion force restricted by the cavity 11, after the pressing block 51 is pushed to the annular inner side of the extrusion block 13, the extrusion block 13 generates pressure on the pressing block 51, since the position of the pressing block 51 is rearward, when the pressing block 51 is extruded towards the center, the front end thereof is opened outward due to the lever principle, the pull pawl 5 is loosened, therefore the pull pawl 5 is opened when it is pushed forward by the pull rod 4, and the pull pawl 5 is clamped when it is pulled backward; further realizing the clamping and loosening of the pull pin 61 at the rear end of the tool shank 6.

[0028] The oil cylinder 2 of the tooth-shaped clutch tool system is close to the pull pawl 5, the broaching force is enhanced, the positioning of the tool holder 62 is realized by the tooth-shaped clutch, the tooth-shaped clutch female disc 7 is installed on the end surface of the sleeve 1, the tooth-shaped clutch male disc 8 is installed on the tool holder 62, the teeth between the tooth-shaped clutch male disc 8 and the tooth-shaped clutch female disc 7 are positioned, not only there is no circumferential gap, but also the bearing surface of the tool holder 62 is increased, which can better maintain the ability of heavy load machining and the ability of high precision machining, the stability of the tool holder 62 is good, which ensures the safety factor and precision of machining.

[0029] It should be emphasized that the above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A profile clutch knife system, characterized by: The utility model provides a sleeve (1) is provided with sleeve interface (12) in the front end center, is provided with the cavity (11) that communicates sleeve interface (12) and its rear end in the center, is provided with the connecting rod (3) that can axially move in the cavity (11), the rear end of the oil cylinder (2) that is fixedly connected with the rear end of connecting rod (3) is connected together with the piston rod (21) of oil cylinder (2), can push connecting rod (3) and move in the cavity (11) back and forth, the part of the cavity (11) that is located in the front end of connecting rod (3) is provided with pull rod (4), the front end of pull rod (4) is fixedly connected together with the front end of connecting rod (3), and connecting rod (3) can push pull rod (4) and move synchronously, the front end of pull rod (4) is provided with pull pawl (5) that is movably connected with it, and when pull rod (4) pushes pull pawl (5) and goes forward, pull pawl (5) opens, and when pull pawl (5) is driven and goes backward, pull pawl (5) is clamped, the pull pawl (5) is clamped in the outside of pull pin (61) that is provided with in the rear end center of the handle (6) of sword, and the front end of the handle (6) of sword is located the outside of the front end of sleeve (1), and the front end of the handle (6) of sword is provided with sword rest (62) that is fixedly connected with it, and the rear end face of sword rest (62) corresponds with the front end face of sleeve (1) each other.

2. A gear-shaped clutch cutter system according to claim 1, characterized in that: The front end of sleeve (1) is provided with the toothed clutch female disc (7) that is fixedly connected with it, and the toothed clutch female disc (7) is circular ring structure, and it is sleeved in the outside of sleeve interface (12), the rear end of sword rest (62) is provided with the toothed clutch male disc (8) that is fixedly connected with it, and the toothed clutch male disc (8) is circular ring structure, and it is sleeved in the outside of the handle (6) of sword, and the toothed clutch male disc (8) corresponds with the toothed clutch female disc (7) front and back and toothed engagement.

3. A gear-shaped clutch cutter system according to claim 2, wherein: The part of the front end of sleeve (1) that is located the outside of toothed clutch female disc (7) is provided with dust ring (9).

4. A gear-shaped clutch cutter system according to claim 3, wherein: The section of dust ring (9) is "┐” shape structure, is provided with the connecting hole (91) that is connected with up and down in the top, and the inside face is provided with annular embedding slot (92) along its circumference in the part close to lower end, and the embedding slot (92) is embedded with sealing ring (93).

5. A tooth profile clutch knife system according to claim 1, wherein: The part close to the center segment of the outside of connecting rod (3) is provided with the radial protruding limit protruding (31), and the spring (32) is sleeved in the front side of the outside of connecting rod (3) in limit protruding (31), and the butterfly spring pad (33) is sleeved in the front end of spring (32), and the front end of butterfly spring pad (33) is in abutment with the annular protruding that is provided in the cavity (11).

6. A gear-shaped clutch cutter system according to claim 1, wherein: The front end center of connecting rod (3) is provided with screw thread connection hole (34), and the rear end of pull rod (4) is screwed in screw thread connection hole (34).

7. A gear-shaped clutch cutter system according to claim 1, wherein: The pull rod (4) is provided with a clamping groove (41) near the front end, the rear end of the pull claw (5) is clamped in the clamping groove (41), the pull claw (5) is provided with a radial protruding pressing block (51) near the rear end, the type cavity (11) is provided with a radial protruding extrusion block (13) corresponding to the part of the pull claw (5) outside, and the pressing block (51) can abut against the extrusion block (13) in the front direction.

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