Quick disassembling and assembling structure for cutter handle and cutter blade of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool knife handle and blade quick dismounting structure which comprises a knife handle body, a push-pull assembly is arranged in the knife handle body in a penetrating mode, one end of the push-pull assembly is used for being connected with an external power device, the other end of the push-pull assembly is provided with at least two elastic arms and penetrates out of the other end of the knife handle body, and a gap is formed between the two elastic arms. A spacer extending out of the cutter body is arranged in the gap, the spacer is fixedly connected with the cutter handle body and can abut against the inner side of the end of the elastic arm, and a first step is arranged on the outer side of the end of the elastic arm; a through hole for the elastic arm to penetrate through is formed in the blade body, a second step is arranged in the through hole, and the second step abuts against the first step. According to the structure, a traditional screw fixing installation mode is abandoned, the situation that a screw is loosened due to external force of a grinding wheel can be eradicated through the abutting mode, and the precision in the machining process is ensured; in addition, a book mounting tool is not needed in the mounting and dismounting process, and dismounting and mounting become more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to numerical control machine tool tool technical field, specifically a numerical control machine tool tool shank blade quick dismounting structure. BACKGROUND

[0002] Numerical control tool is the tool for cutting processing in mechanical manufacturing, and numerical control blade is a consumable product. In order to ensure the processing progress, it needs to be replaced regularly. At present, the blade is basically fixed on the tool shank by screw locking, such as the public technical literature "CN116275162A, a long service life anticorrosion numerical control tool", from its attached drawing, the fixing mode of blade and tool shank is fixed by screw, in the installation process, the blade needs to be locked by using specific tool to ensure that the blade does not loosen, but the external force generated in the use process of grinding wheel exists the possibility of causing the screw to loosen, which is easy to cause tool fracture or processing precision to decline. CONTENT OF UTILITY MODEL

[0003] The utility model is aimed at providing a numerical control machine tool tool shank blade quick dismounting structure to solve the problems in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A numerical control machine tool tool shank blade quick dismounting structure, including tool shank body, the tool shank body is equipped with push-pull assembly, one end of push-pull assembly is used for connecting with external power device, the other end is equipped with at least two elastic arms, and the other end of tool shank body is equipped with two elastic arms, and the gap between the two elastic arms is equipped with the spacer of tool body, the spacer is fixedly connected with tool shank body, and the spacer can be in contact with the inner side of the end of elastic arm, and the step one is arranged on the outer side of the end of elastic arm.

[0006] The through hole for the elastic arm is arranged in the blade body, the step two is arranged in the through hole, the step two is in contact with the step one, and the end surface of the blade body is in contact with the tool shank body, so that the blade body is locked.

[0007] Further technical scheme, the push-pull assembly includes a jack, the end of the jack is connected with a push-pull rod, and the other end of the push-pull rod is provided with an elastic arm.

[0008] Further technical scheme, the nut is connected in the tool shank body, the end surface is arranged on the jack, and the end surface can be in contact with the nut to form a limiting structure.

[0009] Further technical scheme, the spring is arranged on the push-pull rod, one end of the spring is in contact with the inner wall of the tool shank body, and the other end is in contact with the gasket, the gasket is fixed between the jack and the push-pull rod, and the gasket can be in contact with the nut.

[0010] Further technical solutions, the position of the shank body close to the spacer is provided with two vertical to the spacer screw hole, the screw hole is connected with the headless screw, the screw is inserted into the screw hole and the spacer is in contact.

[0011] Further technical solutions, the position of the shank body close to the top rod is provided with a plurality of sealing rings, the sealing ring is in contact with the side wall of the top rod.

[0012] The utility model discloses the beneficial effect:

[0013] The utility model discloses the structure discards the installation mode of traditional screw fixing, can prevent the condition that the screw is loose by the abutting mode to the external force of grinding wheel, ensures the precision in the processing, in addition, does not need to help the installation tool of book in the process of installation and dismounting, makes dismounting become more convenient.

[0014] The other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode part. DRAWINGS

[0015] Figure 1 The utility model discloses the stereogram.

[0016] Figure 2 The utility model discloses the cross section structure Figure One .

[0017] Figure 3 The utility model discloses the cross section structure Figure Two .

[0018] Figure legend: 1-shank body, 11-spacer, 12-screw hole, 13-headless screw, 14-sealing ring, 21-top rod, 22-pull rod, 23-nut, 24-end face, 25-spring, 26-gasket contact, 31-elastic arm, 32-clearance, 33-step one, 41-blade body, 42-through hole, 43-step two. Specific implementation mode

[0019] The technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings in the utility model embodiment.

[0020] Please refer to Figures 1-3 ;

[0021] The utility model provides a structure of quick dismounting blade, simplifies the replacement procedure of blade, specifically includes the handle body 1, is equipped with the push -and -pull assembly in the handle body 1, and the one end of push -and -pull assembly is used for connecting with external power device, and it needs to realize locking and unlocking through push -and -pull assembly in the working process, therefore power assembly needs to drive push -and -pull assembly to carry out push -and -pull action, specifically can be cylinder, in addition than not limit specific connecting structure, therefore the connecting end of push -and -pull assembly can extend out handle body 1 and power device connection, also can be that power device extends into handle body 1 and is connected with push -and -pull assembly, and the other end of push -and -pull assembly is equipped with at least two oppositely arranged elastic arms 31, and from the other end of handle body 1, it needs to be explained that, be equipped with the passageway or space for the activity of push -and -pull assembly in handle body 1, make push -and -pull assembly can move relative to handle body 1 longitudinally, and there is gap 32 between the two elastic arms 31, and there is spacer 11 extending out cutter body in gap 32, spacer 11 is fixedly connected with handle body 1, and spacer 11 can contact with the inside of the end of elastic arm 31, and the outside of the end of elastic arm 31 is equipped with step one 33, and the through hole 42 for the elastic arm 31 to pass through is equipped in blade body 41, and step two 43 is equipped in through hole 42,

[0022] Based on the above scheme, it can be understood that the push-pull assembly has a first position and a second position according to the position change, when the push-pull assembly is in the first position, the end of the elastic arm 31 is located away from the handle body 1, at this time, the spacer 11 is completely placed in the gap 32 of the elastic arm 31, and there is no contact with the inside of the end of the elastic arm 31, in this state, the end of the elastic arm 31 has a deformable excess space, then the position of the through hole 42 of the blade body 41 is aligned with the position of the elastic arm 31 and pushed into it, because the end of the elastic arm 31 has a deformation space, it can approach each other to shrink the space, so that the step one 33 can cross the step two 43, that is, the elastic arm 31 can pass through the through hole 42 and then expand and reset;

[0023] Then the push-pull assembly retracts to switch to the second position, at the same time, the elastic arm 31 also retracts into the handle body 1, so that the end of the elastic arm 31 is in a state close to the handle body 1, when switching to the second position, the spacer 11 contacts the inside of the elastic arm 31, so that the elastic arm 31 cannot shrink inwardly, in the process of moving the elastic arm 31, the blade moves, so that the end face of the blade body 41 contacts the handle body 1, and the step two 43 and the step one 33 contact, so that the blade body 41 is locked; when the blade needs to be replaced and disassembled, the push-pull assembly is switched to the first position.

[0024] This structure discards the traditional screw fixing installation mode, and through the abutting mode, it can prevent the screw loosening caused by the external force of the grinding wheel, ensures the precision in the machining process, and does not need to use the installation tool of the book in the process of installation and disassembly, so that the disassembly becomes more convenient.

[0025] Need to explain the hole 42 in the blade body 41 cooperation step two 43 form two-way taper structure, when disassembling the blade body 41 more convenient, in addition preferably, the spacer 11 is fixed in the shank body 1, one end extends out of the shank body 1, and the gap 32 between the elastic arm 31 is relatively large, so the spacer 11 will not contact with the inner wall of the elastic arm 31, can avoid the friction between the elastic arm 31 and the spacer 11 during the action of the push-pull assembly, at the same time, it can provide more deformation space for the disassembly state, so that the blade body 41 is more easily installed, of course, the inner side of the end of the elastic arm 31 is also provided with an inwardly extending step for abutting against the spacer 11.

[0026] The utility model discloses a push-pull assembly, and specifically includes a top rod 21, the end of the top rod 21 is connected with a push-pull rod 22, the other end of the push-pull rod 22 is provided with an elastic arm 31, and the push-pull rod 22 and the elastic arm 31 are integrally formed.

[0027] In addition, the shank body 1 is composed of two parts, the two part housings are detachably connected, the nut 23 is installed in the shank body 1 in advance before assembly, and then fixed, in the process of push-pull movement, in order to avoid excessive extension, a limiting structure is arranged, and the limiting structure is usually accompanied by collision, therefore, the nut 23 is arranged to avoid the damage caused by the direct collision between the top rod 21 and the inner wall of the shank body 1, and the nut 23 prevents the excessive extension of the machine tool hydraulic cylinder when the top rod 21 is pushed out, further, the top rod 21 is provided with an end face 24, the end face 24 abuts against the nut 23 to form a limiting structure, preferably, one end of the top rod 21 extends to the outside space from the shank body 1, that is, the power device can be connected with the top rod 21 from the outside, the shank body 1 is provided with a plurality of sealing rings 14 close to the top rod 21, that is, the inner wall of the movable channel of the top rod 21 is provided with the sealing rings 14, the sealing rings 14 abut against the side wall of the top rod 21, and the dustproof effect can be achieved.

[0028] The shank body 1 is provided with two screw holes 12 perpendicular to the spacer 11 close to the spacer 11, the spacer 11 is detachably connected with the shank body 1, the headless screw 13 is connected in the screw hole 12, and the screw penetrates into the screw hole 12 and abuts against the spacer 11 to fix the position of the spacer 11.

[0029] Further, the push-pull rod 22 is provided with a spring 25, one end of the spring 25 abuts against the inner wall of the shank body 1, the other end of the spring 25 abuts against a gasket 26, the gasket is fixed between the top rod 21 and the push-pull rod 22, the gasket can abut against the nut 23, the spring 25 assists the push-pull assembly to reset, and the structure is more compact.

[0030] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0031] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A quick-release and assembly structure for CNC machine tool tool holders and inserts, characterized in that: The utility model provides a cutting tool, including the handle body (1), the handle body (1) is equipped with the push-pull assembly, one end of the push-pull assembly is used for connecting with external power device, the other end is equipped with at least two elastic arms (31), and the elastic arm (31) is arranged in the handle body (1) from the other end, the elastic arm (31) between the gap (32) of two, the gap (32) is equipped with the spacer (11) of protruding cutting tool body, the spacer (11) is fixedly connected with the handle body (1), and the spacer (11) can be in contact with the inside of the end of elastic arm (31), and the step one (33) is arranged on the outside of the end of elastic arm (31). The cutting tool body (41) is provided with a through hole (42) for the elastic arm (31) to pass through, the through hole (42) is provided with a step two (43), the step two (43) and the step one (33) are in contact, and the end surface of the cutting tool body (41) is in contact with the handle body (1), so that the cutting tool body (41) is locked.

2. The quick mounting and demounting structure of a tool holder and a tool insert of a numerical control machine tool according to claim 1, characterized in that: The push-pull assembly includes a top rod (21), and the end of the top rod (21) is connected with a push-pull rod (22), and the other end of the push-pull rod (22) is provided with an elastic arm (31).

3. The quick mounting and demounting structure of a tool holder and a tool insert of a numerical control machine tool according to claim 2, characterized in that: The handle body (1) is connected with a nut (23), and the top rod (21) is provided with an end face (24), and the end face (24) can be in contact with the nut (23) to form a limiting structure.

4. The quick mounting and demounting structure of a tool holder and a tool insert of a numerical control machine tool according to claim 3, characterized in that: The push-pull rod (22) is provided with a spring (25), one end of the spring (25) is in contact with the inner wall of the handle body (1), and the other end is in contact with a gasket (26), the gasket is fixed between the top rod (21) and the push-pull rod (22), and the gasket can be in contact with the nut (23).

5. The quick mounting and demounting structure of the tool holder and the tool insert of the numerical control machine tool according to claim 1, characterized in that: The handle body (1) is provided with two screw holes (12) perpendicular to the spacer (11) near the spacer (11), the screw holes (12) are connected with a headless screw (13), and the screw is in contact with the spacer (11) by penetrating the screw hole (12).

6. The quick mounting and demounting structure of a tool holder and a tool insert of a numerical control machine tool according to claim 2, characterized in that: The handle body (1) is provided with a plurality of sealing rings (14) near the top rod (21), and the sealing rings (14) are in contact with the side wall of the top rod (21).

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