Machine tool spindle with quick tool changing structure

Abstract

The utility model discloses a machine tool spindle with a quick tool changing structure, which comprises a tool and a spindle and is characterized by further comprising a limit sleeve, the limit sleeve is movably inserted into the tool, one end of the tool is movably inserted into the limit sleeve, and the inside of the limit sleeve is of a hollow structure. Positioning pieces are symmetrically arranged on the outer surface of the limiting sleeve and used for positioning vertical installation of the main shaft, steel balls are distributed in the limiting sleeve at equal intervals, a fixing groove is further formed in the limiting sleeve, one end of the fixing groove is of a conical structure, and the inclined face of the fixing groove is attached to the steel balls to form a vertical limiting structure. According to the machine tool spindle with the quick tool changing structure, through the quick tool changing structure, an operator can complete tool changing only through two simple operations without depending on any tool, the tool changing time is greatly shortened, the working efficiency of a machine tool is remarkably improved, the operation difficulty is reduced by simplifying the tool changing process, and the working efficiency of the machine tool is improved. The device is particularly suitable for small and medium-sized machine tools or vertical main shaft scenes, and the technical requirements of operators are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe spindle technical field, concretely is a lathe spindle with quick tool changer structure. BACKGROUND

[0002] Under the background of high-speed development of numerical control machine tool, the quick replacement technology of spindle tool has become the core element of improving machining efficiency, the existing technology generally has the problem of high tool cooperation requirement, especially for small and medium-sized machine tool or vertical spindle scene, the complex tool changing mechanism is difficult to adapt to the limited space, and the demand of multiple tool cooperation restricts the equipment integration and operation convenience, therefore, a quick tool changer structure with low tool dependence, self-adaptive clamping and compatible lubrication environment is required. SUMMARY

[0003] The utility model discloses a lathe spindle with quick tool changer structure to solve the problem of slow replacement caused by tool shaft replacement dependence on tools in the background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a lathe spindle with quick tool changer structure, including tool and spindle, characterized by: still including the limit set, the limit set is movably inserted in the tool, one end of the tool is movably inserted in the limit set, the limit set is hollow structure, the limit set outer surface is provided with the positioning piece for positioning the vertical installation of the spindle, the limit set is internally distributed with steel ball at equal intervals, the limit set is internally provided with fixed groove, one end of the fixed groove is conical structure, and the fixed groove inclined surface and steel ball are combined to form vertical limiting structure.

[0005] As the preferred technical scheme of the utility model, the inside of the spindle is provided with a positioning groove, the bottom of the positioning groove is hollow, and the positioning groove is in sliding fit with the positioning piece.

[0006] By adopting the above technical scheme, the bottom of the positioning groove is hollow, and the top wall is circular, which is matched with the top end of the positioning piece, facilitating the positioning of the positioning piece, and the axial positioning can be realized.

[0007] As the preferred technical scheme of the utility model, the inside of the positioning piece is movably connected with a bolt, and a first spring is arranged between the tail end of the bolt and the inner wall of the positioning piece.

[0008] By adopting the above technical scheme, the bolt moves by the elastic force of the first spring, and is inserted into the positioning hole, and the self-locking effect is realized after the positioning hole position is matched.

[0009] As the preferred technical scheme of the utility model, the inside of the tool is symmetrically distributed with a positioning hole, the positioning hole is movably inserted with the bolt, and the top end of the tool is conical.

[0010] Adopting the technical scheme, the inclined surface of the tool tip can be well in interference fit with the bolt when connected with the limiting sleeve.

[0011] As the preferred technical scheme of the utility model, the limiting sleeve is internally provided with a taper block, and the taper block and the tool are provided with a second spring.

[0012] Adopting the technical scheme, the second spring can keep the elastic contact of the taper block, avoiding the rigid contact of the taper block with the limiting sleeve and aggravating the overall shaking.

[0013] As the preferred technical scheme of the utility model, the surface of the taper block is conical, and the taper block is slidably connected with the steel ball.

[0014] Adopting the technical scheme, the taper block extrudes the steel ball through the vertical movement, and the steel ball is in mutual resistance with the taper block and the inclined surface of the fixed groove, so that the limiting effect is achieved.

[0015] Compared with the prior art, the machine tool spindle with the quick tool changing structure has the beneficial effects that:

[0016] Through the quick tool changing structure, the operator can complete the tool replacement only by simple two-step operation without relying on any tool, the tool changing time is greatly shortened, the working efficiency of the machine tool is significantly improved, the operation difficulty is reduced by simplifying the tool changing process, and the quick tool changing structure is particularly suitable for small and medium-sized machine tools or vertical spindle scenes, and the technical requirements of the operator are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the tool and the spindle cross section structure of the utility model;

[0018] Figure 2 It is a schematic view of the tool and the spindle cross section structure of the utility model;

[0019] Figure 3 It is a schematic view of the internal cross section structure of the spindle of the utility model;

[0020] Figure 4 It is a schematic view of the internal cross section structure of the spindle of the utility model.

[0021] In the figure: 1, tool; 2, limiting sleeve; 3, spindle; 4, positioning hole; 5, positioning groove; 6, positioning piece; 7, bolt; 8, first spring; 9, taper block; 10, second spring; 11, steel ball; 12, fixed groove. DETAILED DESCRIPTION

[0022] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described implementation regulations only a 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 the ordinary skill in the art without making creative labor belong to the scope of the utility model protection.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a machine tool spindle with quick tool changer structure, including tool 1 and spindle 3, it is characterized by: still including limit sleeve 2, limit sleeve 2 is movably inserted in tool 1, one end of tool 1 is movably inserted in limit sleeve 2, limit sleeve 2 inside is hollow structure, limit sleeve 2 outer surface is symmetrically provided with positioning member 6 for positioning spindle 3 vertical installation, limit sleeve 2 inside is distributed with steel ball 11 at equal intervals, limit sleeve 2 inside is further provided with fixed groove 12, one end of fixed groove 12 is conical structure, fixed groove 12 inclined surface and steel ball 11 are bonded to form vertical limiting structure.

[0024] Positioning groove 5 is set in the inside of spindle 3, the bottom of positioning groove 5 is hollow structure, positioning groove 5 and positioning member 6 slide fit, the bottom of positioning groove 5 is hollow and top wall is circular, the circle is adapted to the top end of positioning member 6, it is convenient to position positioning member 6, and can be axially positioned.

[0025] The inside of positioning member 6 movably connects with bolt 7, first spring 8 is arranged between the tail end of bolt 7 and the inner wall of positioning member 6, bolt 7 moves using the elastic force of first spring 8, so that bolt 7 is inserted into positioning hole 4, reaches self-locking effect using the position of positioning hole 4, positioning hole 4 is symmetrically distributed in the inside of tool 1, positioning hole 4 and bolt 7 movably insert, the top end of tool 1 is conical, when the inclined surface of the top end of tool 1 is connected with limit sleeve 2, it can be well with the interference fit of bolt 7.

[0026] Tapered block 9 is arranged in the inside of limit sleeve 2, second spring 10 is arranged between tapered block 9 and tool 1, second spring 10 can keep the elastic contact of tapered block 9, avoid that tapered block 9 and limit sleeve 2 rigid contact and aggravate overall shaking, the surface of tapered block 9 is conical, tapered block 9 and steel ball 11 slide connection, tapered block 9 extrudes steel ball 11 by the way of vertical movement, and steel ball 11 and tapered block 9 and fixed groove 12 inclined surface mutually resist, to reach limiting effect

[0027] The two positioning members 6 arranged outside the limiting sleeve 2 correspond to the position of the positioning groove 5 of the cutter 1 vertically, when the positioning groove 5 and the top wall of the positioning member 6 are attached, the cutter 1 is directly inserted from the bottom of the limiting sleeve 2, and the taper structure at the top end of the cutter 1 makes the bolt 7 slide along the inclined surface of the cutter 1 and retract into the positioning member 6, when the cutter 1 corresponds to the position of the positioning hole 4 of the limiting sleeve 2, the bolt 7 is inserted into the cutter 1 under the elastic force of the first spring 8, at this time, the cutter 1 has reached the specified point in the extension and retraction position of the limiting sleeve 2, the tapered block 9 moves upward vertically, the inclined surface of the tapered block 9 and the inner wall of the limiting sleeve 2 gradually reduces the gap, thereby extruding the steel ball 11, the steel ball 11 is attached to the fixed groove 12 inside the cutter 1, because there is an angle between the fixed groove 12 and the tapered block 9, the steel ball 11 is forced between the two ends, thereby the limiting sleeve 2 cannot be taken out from the inside of the cutter 1 in a vertical manner, and the main shaft 3 cannot be taken out from the inside of the limiting sleeve 2 under the action of the bolt 7, the whole does not use tools, and the operation only needs two steps, which is convenient and fast.

[0028] 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, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A machine tool spindle with quick tool change structure comprising a tool (1) and a spindle (3), characterized in that: The utility model also comprises a limiting sleeve (2), the limiting sleeve (2) is movably inserted in the cutter (1), one end of the cutter (1) is movably inserted in the limiting sleeve (2), the inside of the limiting sleeve (2) is hollow structure, the outer surface of the limiting sleeve (2) is provided with the positioning piece (6) for positioning the vertical installation of main shaft (3) symmetrically, the inside of the limiting sleeve (2) is distributed with steel ball (11) at equal intervals, the inside of the limiting sleeve (2) is also provided with fixed groove (12), one end of fixed groove (12) is conical structure, the inclined surface of fixed groove (12) is combined with steel ball (11) and forms vertical limiting structure.

2. The machine tool spindle with quick tool changer according to claim 1, characterized in that: The inside of main shaft (3) is provided with positioning groove (5), the bottom of positioning groove (5) is hollow structure, positioning groove (5) is slidably connected with positioning piece (6).

3. The machine tool spindle with quick tool changer according to claim 1, characterized in that: The inside of positioning piece (6) movably connects with the bolt (7), and the first spring (8) is arranged between the tail end of the bolt (7) and the inner wall of the positioning piece (6).

4. The machine tool spindle with quick tool changer according to claim 1, characterized in that: The inside of cutter (1) is symmetrically distributed with positioning hole (4), the positioning hole (4) is movably inserted with the bolt (7), and the top of the cutter (1) is conical.

5. The machine tool spindle with quick tool changer according to claim 1, characterized in that: The inside of limiting sleeve (2) is provided with taper block (9), and the second spring (10) is arranged between the taper block (9) and the cutter (1).

6. The machine tool spindle with quick tool changer according to claim 5, characterized in that: The surface of taper block (9) is conical, and the taper block (9) is slidably connected with the steel ball (11).

Images