Fixed type quick-change main shaft

Abstract

The utility model belongs to the technical field of shaft sleeve replacement, and particularly relates to a fixed type quick-change main shaft which comprises a chuck assembly, a fixed main shaft, a locking assembly and a main shaft seat. The chuck assembly comprises a chuck body, a chuck top core, a base, a chuck spring and a top sleeve. The locking assembly comprises a locking check ring, a locking sleeve, a spring sleeve, a locking spring and a locking steel ball, the locking check ring, the locking sleeve and the spring sleeve are sequentially arranged on the outer side of the fixed main shaft in a sleeving mode, the locking check ring is installed on the locking steel ball, the locking spring is arranged on the outer side of the fixed main shaft in a sleeving mode and abuts against the spring sleeve, and the locking steel ball is installed on the fixed main shaft. The fixed type quick-change main shaft comprises the chuck assembly, the fixed main shaft, the locking assembly and the main shaft base, the top sleeve abuts against the chuck spring and drives the base and the chuck body to move along the chuck top core, the chuck top core abuts against the chuck body, the chuck body can conduct clamping operation, alignment is not needed, and clamping is more convenient and faster.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the shaft sleeve replacement, especially relates to a fixed quick-change main shaft. BACKGROUND

[0002] The quick-change chuck is an advanced and efficient clamp (machine tool accessory) used in brick, expansion, hinge and attack in machining. In the moving parts, long-term friction can easily cause wear of the parts, and when the gap between the shaft and the hole is worn to a certain extent, the parts must be replaced, so a material with lower hardness and better wear resistance is selected as the shaft sleeve.

[0003] For the use of the quick-change sleeve, the problem of wear of the parts can be solved, and for some parts with a large depth, the method of lengthening the quick-change sleeve rod can be used, and the chuck is used in cooperation with the sleeve, which can prolong the service life and reduce the cost. The chuck of the existing quick-change sleeve is inconvenient to clamp and align, which affects the clamping efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses a fixed quick-change main shaft, which aims to solve the technical problems of the chuck of the existing quick-change sleeve, such as inconvenient clamping and alignment, and low clamping efficiency.

[0005] To achieve the above-mentioned purpose, the fixed quick-change main shaft provided by the utility model embodiment comprises a chuck assembly, a fixed main shaft, a locking assembly and a main shaft seat, the chuck assembly is arranged at one end of the fixed main shaft and abuts against the fixed main shaft, the locking assembly and the main shaft seat are both connected to the fixed main shaft, and the locking assembly is arranged on one side of the main shaft seat.

[0006] The chuck assembly comprises a chuck main body, a chuck top core, a base, a chuck spring and a top sleeve, one end of the chuck main body is sleeved outside the chuck top core, one end of the chuck top core extends into the chuck main body, the other end abuts against the fixed main shaft, the base is connected to the outside of the chuck main body and is slidingly connected to the chuck top core, the chuck spring is sleeved outside the base and is arranged on one side of the top sleeve, the chuck spring abuts against the base and the top sleeve respectively, and the top sleeve is sleeved outside the base.

[0007] The locking assembly comprises a locking stop ring, a locking sleeve, a spring sleeve, a locking spring and a locking steel ball, the locking stop ring, the locking sleeve and the spring sleeve are sequentially sleeved outside the fixed main shaft, the locking stop ring is mounted on the locking steel ball, the locking sleeve abuts against the locking stop ring and the spring sleeve respectively, the locking spring is sleeved outside the fixed main shaft and abuts against the spring sleeve, and the locking steel ball is mounted on the fixed main shaft.

[0008] As optional scheme of the utility model, the chuck main body includes chuck body and clamping piece, one end of the chuck body is sleeved outside the chuck top core, the other end is fixedly connected with the clamping piece, the clamping piece is equipped with multiple, and all is fixedly connected on the chuck body.

[0009] As optional scheme of the utility model, the top cover includes top cover body and top ring, the top cover body is fixedly connected with the top ring, and the top cover body and top ring are movably sleeved outside the base.

[0010] As optional scheme of the utility model, the locking ring side is equipped with steel ball positioning hole, the steel ball positioning hole corresponds with the locking steel ball position, and the locking steel ball is fixedly installed in the steel ball positioning hole.

[0011] As optional scheme of the utility model, the locking steel ball is equipped with multiple, and is fixedly installed on the fixed main shaft, and the steel ball positioning hole is same in number with the locking steel ball.

[0012] As optional scheme of the utility model, the locking sleeve is fixedly connected with locking step, one end of the locking spring is abutted with the spring sleeve, and the other end is abutted with the locking step.

[0013] The one or more technical solutions of the fixed quick-change spindle provided by the utility model embodiment at least have one of the following technical effects:

[0014] The fixed quick-change spindle provided by the application includes chuck assembly, fixed main shaft, locking assembly and spindle base, the chuck spring is pressed by the top cover, and the base and the chuck main body are driven to move along the chuck top core, the chuck top core presses the chuck main body, the chuck main body can be clamped for operation, and the clamping is more convenient and fast without alignment. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of the drawings.

[0016] Fig. 1 The utility model embodiment provides the fixed quick-change spindle's perspective view.

[0017] Fig. 2 The utility model embodiment provides the fixed quick-change spindle's chuck assembly and locking assembly separation state's structure schematic view.

[0018] Fig. 3The utility model provides a fixed quick change main shaft's explosion map.

[0019] In the drawing, various reference signs:

[0020] 1, chuck assembly, 2, fixed main shaft, 3, locking assembly, 4, main shaft seat,

[0021] 11, chuck main body, 12, chuck top core, 13, base, 14, chuck spring, 15, top cover,

[0022] 31, locking baffle, 32, locking cover, 33, spring cover, 34, locking spring, 35, locking steel ball,

[0023] 111, chuck body, 112, clamping piece,

[0024] 151, top cover body, 152, top ring,

[0025] 311, steel ball positioning hole,

[0026] 321, locking step. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the utility model, and cannot be understood as a limitation of the utility model.

[0028] In the description of the embodiments of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0029] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0031] In one embodiment of the present application, as shown in Figs. 1-3 The fixed quick-change spindle is provided, which comprises a chuck assembly 1, a fixed spindle 2, a locking assembly 3 and a spindle seat 4. The chuck assembly 1 is arranged at one end of the fixed spindle 2 and abuts against the fixed spindle 2. The locking assembly 3 and the spindle seat 4 are both connected to the fixed spindle 2, and the locking assembly 3 is arranged on one side of the spindle seat 4. The chuck assembly 1, the fixed spindle 2 and the locking assembly 3 can be fixed on the machine table through the spindle seat 4.

[0032] The chuck assembly 1 comprises a chuck main body 11, a chuck top core 12, a base 13, a chuck spring 14 and a top sleeve 15. One end of the chuck main body 11 is sleeved outside the chuck top core 12, one end of the chuck top core 12 extends into the chuck main body 11, and the other end abuts against the fixed spindle 2. The base 13 is fixedly connected to the outside of the chuck main body 11 and is slidingly connected to the chuck top core 12. The chuck spring 14 is movably sleeved outside the base 13 and is arranged on one side of the top sleeve 15. The chuck spring 14 abuts against the base 13 and the top sleeve 15 respectively, and the top sleeve 15 is movably sleeved outside the base 13. The top sleeve 15 pushes the chuck spring 14, and drives the base 13 and the chuck main body 11 to move along the chuck top core 12. The chuck top core 12 pushes the chuck main body 11, and the chuck main body 11 can be clamped for operation.

[0033] The locking assembly 3 comprises a locking stop ring 31, a locking sleeve 32, a spring sleeve 33, a locking spring 34 and a locking steel ball 35. The locking stop ring 31, the locking sleeve 32 and the spring sleeve 33 are sequentially sleeved outside the fixed spindle 2. The locking stop ring 31 is fixedly installed on the locking steel ball 35. The locking sleeve 32 abuts against the locking stop ring 31 and the spring sleeve 33 respectively. The locking spring 34 is sleeved outside the fixed spindle 2 and abuts against the spring sleeve 33. The locking steel ball 35 is fixedly installed on the fixed spindle 2. By pushing the spring sleeve 33 to push the locking spring 34, the locking spring 34 pushes the locking sleeve 32, and then the locking sleeve 32 pushes the locking stop ring 31 to compress the steel ball to lock the quick-change head. Without alignment operation, installation and replacement are more convenient.

[0034] The fixed quick-change spindle provided by the application drives the chuck spring 14 by the top sleeve 15, drives the base 13 and the chuck body 11 along the chuck top core 12, and drives the chuck body 11 by the chuck top core 12, so that the chuck body 11 can be clamped without alignment, and the clamping is more convenient and fast.

[0035] In another embodiment of the utility model, the chuck body 11 of the fixed quick-change spindle includes a chuck body 111 and a clamping piece 112. The chuck body 111 is sleeved on the outside of the chuck top core 12 at one end and is fixedly connected with the clamping piece 112 at the other end. The clamping piece 112 is provided with a plurality of clamping pieces and is fixedly connected with the chuck body 111. After the chuck top core 12 presses the clamping piece 112, the clamping piece 112 will be opened, and after the chuck top core 12 is loosened from the clamping piece 112, the clamping piece 112 will be clamped, so that the clamping piece 112 can be clamped.

[0036] In another embodiment of the utility model, the top sleeve 15 of the fixed quick-change spindle includes a top sleeve body 151 and a top ring 152. The top sleeve body 151 is fixedly connected with the top ring 152, and the top sleeve body 151 and the top ring 152 are movably sleeved on the outside of the base 13. The top ring 152 has a limiting effect on the chuck spring 14.

[0037] In another embodiment of the utility model, the side surface of the locking ring 31 of the fixed quick-change spindle is provided with a steel ball positioning hole 311. The steel ball positioning hole 311 corresponds to the position of the locking steel ball 35. The locking steel ball 35 is fixedly installed in the steel ball positioning hole 311.

[0038] In another embodiment of the utility model, the locking steel ball 35 of the fixed quick-change spindle is provided with a plurality of locking steel balls, which are fixedly installed on the fixed spindle 2 in a uniform manner. The number of the steel ball positioning hole 311 is the same as that of the locking steel ball 35.

[0039] In another embodiment of the utility model, the locking sleeve 32 of the fixed quick-change spindle is fixedly connected with a locking step 321. One end of the locking spring 34 is in abutment with the spring sleeve 33, and the other end is in abutment with the locking step 321.

[0040] The fixed quick-change spindle provided by the application drives the chuck spring 14 by the top sleeve 15, drives the base 13 and the chuck body 11 along the chuck top core 12, and drives the chuck body 11 by the chuck top core 12, so that the chuck body 11 can be clamped without alignment, and the clamping is more convenient and fast.

[0041] The above description is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A stationary quick change spindle characterized by, The chuck assembly, the fixed main shaft, the locking assembly and the main shaft seat, the chuck assembly is arranged at one end of the fixed main shaft and abuts with the fixed main shaft, the locking assembly and the main shaft seat are connected to the fixed main shaft, and the locking assembly is arranged at one side of the main shaft seat; The chuck assembly includes a chuck body, a chuck top core, a base, a chuck spring and a top sleeve, one end of the chuck body is sleeved outside the chuck top core, one end of the chuck top core extends into the chuck body, and the other end abuts with the fixed main shaft, the base is connected outside the chuck body and is slidingly connected to the chuck top core, the chuck spring is sleeved outside the base and is arranged at one side of the top sleeve, and the chuck spring abuts with the base and the top sleeve respectively, and the top sleeve is sleeved outside the base; The locking assembly includes a locking ring, a locking sleeve, a spring sleeve, a locking spring and a locking steel ball, the locking ring, the locking sleeve and the spring sleeve are sequentially sleeved outside the fixed main shaft, the locking ring is mounted on the locking steel ball, the locking sleeve abuts with the locking ring and the spring sleeve respectively, the locking spring is sleeved outside the fixed main shaft and abuts with the spring sleeve, and the locking steel ball is mounted on the fixed main shaft.

2. A fixed quick change spindle according to claim 1, wherein, The chuck body includes a chuck body and a clamping piece, one end of the chuck body is sleeved outside the chuck top core, and the other end is fixedly connected with the clamping piece, a plurality of clamping pieces are arranged and are fixedly connected with the chuck body.

3. A fixed quick change spindle according to claim 2, wherein, The top sleeve includes a top sleeve body and a top ring, the top sleeve body is fixedly connected with the top ring, and the top sleeve body and the top ring are movably sleeved outside the base.

4. The fixed quick change spindle of claim 1 wherein, The locking ring is provided with a steel ball positioning hole on the side surface, the steel ball positioning hole corresponds to the position of the locking steel ball, and the locking steel ball is fixedly mounted in the steel ball positioning hole.

5. A fixed quick change spindle according to claim 4, wherein, The locking steel ball is provided with a plurality of locking steel balls, and the locking steel balls are fixedly mounted on the fixed main shaft.

6. A fixed quick change spindle as claimed in claim 1, wherein, The locking sleeve is fixedly connected with a locking step, one end of the locking spring abuts with the spring sleeve, and the other end abuts with the locking step.

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