Numerical control lathe tool clamping mechanism

Abstract

The utility model discloses a numerical control lathe tool clamping mechanism which comprises a tool apron, the tool apron is assembled on a driving structure of a lathe, a tool is fixedly assembled at the lower end of a threaded section, the outer wall of the threaded section is in threaded connection with a limiting structure, the limiting structure is connected with a fixing plate, the tool apron is connected with the driving structure of the lathe, and stability is guaranteed. Meanwhile, the tool can be conveniently driven to work, the installation stability is guaranteed through the effect that the tool handle clamp is in threaded connection with the threaded section of the tool, the tool can be effectively limited through the arrangement of the limiting structure and the cooperation of the limiting structure and the fixing plate, and the phenomenon that in the rotating process of the tool, the tool nose of the tool generates periodic radial deviation around the rotating axis is avoided; and meanwhile, irregular movement of the tool in the axial direction is avoided, the machining straightness, the thread precision and the like are prevented from being affected, and the machining effect of the tool is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control lathe tool clamping technical field, concretely relates to a numerical control lathe tool clamping mechanism. BACKGROUND

[0002] Numerical control lathe tool clamping mechanism plays a vital role in the machining process of numerical control lathe, and the existing tool clamping mechanism only has single fixture to limit and fix the tool, and the tool tip produces periodic radial deviation around the rotation axis during rotation, which leads to the decline of machining precision, such as the vibration of the machined workpiece surface, the out-of-tolerance of cylindricity and the irregular movement of the tool in the axial direction, which affects the straightness and thread accuracy of machining. SUMMARY

[0003] The utility model discloses a numerical control lathe tool clamping mechanism to solve the problems in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a numerical control lathe tool clamping mechanism, including the tool holder, the tool holder is assembled on the driving structure of lathe, the lower end of the tool holder is fixedly assembled with the handle clamp, the outer wall lower end of the handle clamp is fixedly assembled with the fixed plate, the inner wall of the handle clamp is provided with the screw hole, the inner wall of the screw hole is screwed with the threaded section, the lower end of the threaded section is fixedly assembled with the tool, the outer wall of the threaded section is screwed with the limiting structure, and the limiting structure is connected with the fixed plate.

[0005] Preferably, the limiting structure includes a limiting block, the limiting block is sleeved on the outer wall of the threaded section, the inner wall of the limiting block is fixedly assembled with a nut, the inner wall of the nut is screwed with the threaded section, and the outer wall of the limiting block is fixedly connected with a support plate on both sides.

[0006] Preferably, the lower end of the fixed screw rod is fixedly assembled with a rotating block.

[0007] Preferably, the inner wall of the handle clamp is through assembled with a butt joint bolt, the butt joint bolt penetrates the inner wall of the threaded section, and the butt joint bolt is screwed with the inner wall of the threaded section.

[0008] Compared with the prior art, the utility model have the advantages that: the knife seat is connected with the lathe drive structure, guarantees stability, and conveniently drives the cutting tool to work simultaneously, through the action that the shank clamp and the thread section of the cutting tool are screwed, guarantee the stability of installation, through the setting of the limiting structure, and the cooperation of the limiting structure and the fixed plate, can effectively limit the cutting tool, avoid that the cutting tool produces periodic radial deviation around the rotation axis in the rotation process, leads to the decline of machining precision, such as the vibration of the workpiece surface that is processed appears, the cylindricity is out of tolerance etc, avoids the cutting tool to appear the irregular movement in the axial direction simultaneously, influences the straightness and the thread precision of processing etc, guarantees the processing effect of the cutting tool. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the structure perspective diagram of the utility model;

[0010] Fig. 2 It is the front view of the utility model;

[0011] Fig. 3 It is the cutting tool and limiting structure assembly perspective drawing.

[0012] In the drawing: 1-knife seat, 2-shank clamp, 3-fixed plate, 4-cutting tool, 5-limiting structure, 51-limiting block, 52-nut, 53-branch plate, 54-fixed screw, 55-rotary block, 6-thread section, 7-butting bolt. DETAILED DESCRIPTION

[0013] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0014] Please refer to Figs. 1-3 The utility model provides a kind of numerical control lathe cutting tool clamping mechanism, including knife seat 1, knife seat is assembled on the drive structure of lathe, the lower end of knife seat 1 is fixedly equipped with shank clamp 2, the outer wall lower end of shank clamp 2 is fixedly equipped with fixed plate 3, the inner wall of shank clamp 2 is provided with screw hole, the inner wall of screw hole is screwed with thread section 6, the lower end of thread section 6 is fixedly equipped with cutting tool 4, the outer wall of thread section 6 is screwed with limiting structure 5, limiting structure 5 is connected with fixed plate 3.

[0015] The tool holder 1 is connected with the lathe driving structure, stability is ensured, and the tool 4 is conveniently driven to work, the threaded section 6 of the tool holder clamp 2 is screwed with the tool 4, the stability of installation is ensured, the limiting structure 5 is arranged, and the limiting structure 5 is matched with the fixed plate 3, so that the tool 4 can be effectively limited, periodic radial deviation of a tool tip of the tool 4 around a rotation axis is avoided in the rotating process, machining precision is reduced, vibration marks are avoided on a machined workpiece surface, cylindricity is avoided to be out of tolerance, irregular movement of the tool 4 in an axial direction is avoided, straightness and thread precision of machining are affected, and machining effect of the tool 4 is ensured.

[0016] The limiting structure 5 comprises a limiting block 51, the limiting block 51 is sleeved on the outer wall of the threaded section 6, a female screw 52 is fixedly arranged on the inner wall of the limiting block 51, the inner wall of the female screw 52 is screwed with the threaded section 6, the outer wall of the limiting block 51 is symmetrically fixedly connected with a support plate 53, a fixed screw rod 54 is screwed on the inner wall of each support plate 53, the fixed screw rod 54 is screwed on the inner wall of the fixed plate 3, and a rotating block 55 is fixedly arranged on the lower end of the fixed screw rod 54.

[0017] When the limiting structure 5 needs to be installed, the limiting block 51 is sleeved on the outer wall of the tool 4 according to different lengths of tool heads of the tool 4, and is continuously displaced upward, after the limiting block 51 is in contact with the threaded section 6, the limiting block 51 is rotated, the female screw 52 on the inner wall is screwed on the outer wall of the threaded section 6 of the tool 4, at this time, the fixed screw bolts 54 on the two sides are aligned with the screw holes in the lower end of the fixed plate 3, the fixed screw bolts 54 are rotated, the fixed screw bolts 54 are adjusted to be displaced upward on the inner wall of the support plate 53, until the fixed screw bolts 54 are completely screwed in the two screw holes in the lower end of the fixed plate 3, installation stability of the tool 4 is ensured, and the rotating block 55 facilitates rotation of the fixed screw rod 54.

[0018] The inner wall of the tool holder clamp 2 is throughly arranged with a butt screw 7, the butt screw 7 is throughly screwed with the inner wall of the threaded section 6, and the butt screw 7 is screwed with the inner wall of the threaded section 6.

[0019] The butt screw 7 can assist in fixing the threaded section 6, limit the position, and better ensure working stability.

[0020] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A CNC lathe tool holder mechanism characterized by: The utility model provides a tool holder, including the tool holder (1), the tool holder (1) is assembled to the driving structure of lathe, the lower end fixed assembly of tool holder (1) has the handle clamp (2), the outer wall lower end fixed assembly of handle clamp (2) has fixed plate (3), the inner wall of handle clamp (2) is provided with screw hole, the inner wall screw joint of screw hole has screw segment (6), the lower end fixed assembly of screw segment (6) has tool (4), the outer wall screw joint of screw segment (6) has limit structure (5), limit structure (5) links with fixed plate (3).

2. A tool holder clamping mechanism for a CNC lathe according to claim 1, characterized in that: The limit structure (5) includes a limiting block (51) which is sleeved on the outer wall of the screw segment (6), the inner wall of the limiting block (51) is fixedly provided with a nut (52), the inner wall of the nut (52) is screwed with the screw segment (6), the outer wall of the limiting block (51) is symmetrically fixedly provided with a supporting plate (53) on both sides, the inner wall of each supporting plate (53) is screwed with a fixing screw rod (54), and the fixing screw rod (54) is screwed and assembled on the inner wall of the fixed plate (3).

3. A tool holder clamping mechanism for a CNC lathe according to claim 2, wherein: The lower end of the fixing screw rod (54) is fixedly provided with a rotating block (55).

4. The tool holder clamping mechanism of claim 1 wherein: The inner wall of the handle clamp (2) is throughly provided with a butt bolt (7), the butt bolt (7) penetrates the inner wall of the screw segment (6), and the butt bolt (7) is screwed with the inner wall of the screw segment (6).

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