CN216028112U - Mechanical main shaft and key processing machine capable of changing tools quickly - Google Patents
Mechanical main shaft and key processing machine capable of changing tools quickly Download PDFInfo
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- CN216028112U CN216028112U CN202122396912.3U CN202122396912U CN216028112U CN 216028112 U CN216028112 U CN 216028112U CN 202122396912 U CN202122396912 U CN 202122396912U CN 216028112 U CN216028112 U CN 216028112U
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- rotating shaft
- core rod
- collet
- shaft
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Abstract
The utility model provides a mechanical main shaft with a quick tool changing function and a key processing machine, belonging to the technical field of machine tools and comprising a rotatable rotating shaft, wherein the rotating shaft is of a hollow structure; the shell is sleeved outside the rotating shaft and is coaxially arranged with the rotating shaft, and the shell is connected with the rotating shaft through a bearing; the collet chuck is arranged in one end of the rotating shaft; the core rod is positioned in the rotating shaft and connected with the collet chuck, and the collet chuck is driven to synchronously move when the core rod moves linearly along the axial direction of the rotating shaft; the compression nut is in threaded connection with the inner wall of the shell and pushes the core rod to do linear motion along the axial direction of the rotating shaft when screwing in towards the direction close to the end part of the rotating shaft on which the collet is installed; the elastic piece is connected with the core rod and used for providing acting force to enable the core rod to do linear motion along the axial direction of the rotating shaft and the direction far away from the end part of the rotating shaft on which the collet is installed. The tool is arranged on the rotating shaft through the collet, the tool is disassembled by rotating the compression nut, the tool is arranged through the acting force of the elastic piece, the tool changing process is completed, and the operation process is very simple.
Description
Technical Field
The utility model belongs to the field of machine tools, and particularly relates to a mechanical spindle capable of changing tools quickly and a key processing machine.
Background
In the numerical control machine tool, a cutter for cutting a workpiece is fixed on a main shaft, and the cutter is driven to cut the workpiece through the rotation of the main shaft. Due to the different requirements for the machining of the workpiece and due to the wear of the tool, the tool needs to be replaced frequently. The existing method for replacing the tool generally comprises the steps of screwing a jackscrew on a main shaft for jacking the tool to separate the tool from the main shaft, and then fixing the target tool to be replaced on the main shaft through the jackscrew. The process is very complicated, and needs two hands to operate simultaneously, so that the operation difficulty is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mechanical spindle capable of changing tools quickly, and aims to solve the technical problems of complex operation and high difficulty in tool changing of the spindle in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a machine spindle for quick tool changing, comprising:
the rotary shaft is of a hollow structure;
the shell is sleeved outside the rotating shaft and is coaxially arranged with the rotating shaft, and the shell is connected with the rotating shaft through a bearing;
the collet chuck is arranged in one end of the rotating shaft;
the core rod is positioned in the rotating shaft and connected with the collet chuck, and when the core rod moves linearly along the axial direction of the rotating shaft, the core rod drives the collet chuck to move synchronously;
the compression nut is in threaded connection with the inner wall of the shell, and when the compression nut is screwed in towards the direction close to the end part of the rotating shaft on which the collet is installed, the core rod is pushed to do linear motion along the axial direction of the rotating shaft;
the elastic piece is connected with the core rod and used for providing acting force to enable the core rod to do linear motion along the axial direction of the rotating shaft and the direction far away from the end part of the rotating shaft on which the collet is installed.
Further, the mechanical spindle further comprises a handle and a transmission ring; the handle is fixedly connected with the transmission ring; the transmission ring encircles gland nut sets up, gland nut's tip has seted up external splines along circumference, the internal spline has been seted up to the relevant position of transmission ring, the transmission ring with gland nut splined connection.
Furthermore, a mandrel loose piece and a shaft pin are arranged below the compression nut; the mandrel loose piece is fixedly connected with the shaft pin; the mandrel loose piece is sleeved on the rotating shaft; the shaft pin penetrates through the rotating shaft and the core rod along the direction vertical to the axis of the rotating shaft, and the shaft pin can move along the axis direction of the rotating shaft relative to the rotating shaft so as to drive the core rod to push the core rod to do linear motion along the axial direction of the rotating shaft.
Further, the elastic piece is a disc spring; one end of the disc spring is abutted against the inner wall of the rotating shaft, and the other end of the disc spring is abutted against the core rod.
Furthermore, the bottom of the core rod is provided with threads, a threaded hole is formed in the corresponding position of the collet chuck, and the core rod is in threaded connection with the collet chuck.
Further, the other end of pivot is connected with the belt pulley, the belt pulley is used for driving the pivot rotates.
The application also provides a key processing machine, which comprises the mechanical spindle capable of changing the tool quickly.
The mechanical main shaft capable of changing the tool quickly and the key processing machine have the advantages that: the application provides a mechanical main shaft of quick tool changing makes cutter detachably install in the pivot through the collet chuck to through rotating gland nut and realizing the dismantlement of cutter, and through the effort installation cutter of elastic component, accomplish the tool changing process, operation process is very simple.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic cross-sectional structural view of a spindle of a quick tool changer according to an embodiment of the present invention;
fig. 2 is a partial schematic view of a machine spindle with a quick tool changing function according to an embodiment of the present invention.
In the figure: 100. a cutter; 200. a housing; 300. a bearing; 400. a collet; 500. a core bar; 600. an elastic member; 700. a shaft pin; 800. a belt pulley; 900. a drive ring; 110. a rotating shaft; 120. a compression nut; 130. a mandrel loose piece; 140. a handle; 150. a pin.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides a quick tool changing machine spindle, which includes a housing 200, a collet 400, a core rod 500, a compression nut 120, and an elastic member 600. The rotating shaft 110 is rotatable and hollow, a collet 400 is mounted in one end of the rotating shaft 110, the collet 400 is a locking device for clamping the tool 100, and the tool 100 is locked and unlocked by controlling the depth of the collet 400 inserted into the rotating shaft 110; a shell 200 is arranged outside the rotating shaft 110, the shell 200 and the rotating shaft 110 are coaxially arranged, and the rotating shaft 110 is connected with the shell 200 through a bearing 300; the core rod 500 is positioned in the rotating shaft 110, and the core rod 500 is connected to the collet 400 above the collet 400, so that when the core rod 500 linearly moves along the axial direction of the rotating shaft 110, the collet 400 is driven to synchronously move, the depth of the collet 400 inserted into the rotating shaft 110 is changed, the collet 400 is further locked and unlocked for the tool 100, and the tool changing process is completed; in order to realize the linear motion of the core rod 500 along the axial direction of the rotating shaft 110, the compression nut 120 and the elastic member 600 are provided; the inner wall of the housing 200 is provided with threads, the compression nut 120 is in threaded connection with the inner wall of the housing 200 and is positioned between the housing 200 and the rotating shaft 110, when the compression nut 120 is rotated to screw in towards the direction close to the end part of the rotating shaft 110 on which the collet 400 is mounted, the bottom of the compression nut 120 contacts the core rod 500, and the core rod 500 is pushed to move downwards along the axial direction of the rotating shaft 110, so that the collet 400 indirectly moves downwards, when the collet 400 moves downwards, the depth of the collet 400 inserted into the rotating shaft 110 is reduced, the clamping force of the collet 400 on the tool 100 is reduced, until the tool 100 is loosened from the collet 400, and the tool 100 is disassembled; the elastic member 600 is connected to the core rod 500, and is used for providing acting force to make the core rod 500 move linearly along the axial direction of the rotating shaft 110 and away from the direction of the end of the rotating shaft 110 where the collet 400 is installed, that is, the acting force of the elastic member 600 is opposite to the acting force of the compression nut 120, which pulls the collet 400 to move upwards, the depth of the collet 400 inserted into the rotating shaft 110 is increased, the clamping force of the collet 400 on the tool 100 is increased until the tool 100 is completely clamped, and the installation of the tool 100 is realized.
The application provides a mechanical main shaft of quick tool changing makes cutter 100 detachably install on pivot 110 through collet chuck 400 to realize cutter 100's dismantlement through rotating gland nut 120, and install cutter 100 through the effort of elastic component 600, accomplish the tool changing process, operation process is very simple.
In one embodiment, the machine spindle further includes a handle 140 and a drive ring 900. The driving ring 900 surrounds the gland nut 120, an inner spline is arranged on the circumferential surface of the inner side of the driving ring 900, correspondingly, an outer spline is arranged on the end portion of the gland nut 120 along the circumferential direction, and the driving ring 900 is in spline connection with the gland nut 120 through the inner spline on the driving ring 900. The handle 140 is fixedly connected to the driving ring 900, a torque is applied to the driving ring 900 by rotating the handle 140, and the driving ring 900 transmits the torque to the compression nut 120 through a spline connection when rotating, so that the compression nut 120 is screwed forward toward the end of the rotating shaft 110 on which the collet 400 is mounted, and further, the tool 100 is detached. The driving ring 900 and the handle 140 are provided to make the process of rotating the compression nut 120 more convenient and labor-saving.
Referring to fig. 1 and 2, in one embodiment, a mandrel loose piece 130 and a shaft pin 700 are disposed below the compression nut 120. The mandrel loose piece 130 is annular and is sleeved on the periphery of the rotating shaft 110, the shaft pin 700 penetrates through the core rod 500 and the rotating shaft 110 along a direction perpendicular to the axis of the rotating shaft 110, the mandrel loose piece 130 and the shaft pin 700 are fixedly connected, and specifically, the shaft pin 700 is fixed on the mandrel loose piece 130 through the pin 150. When the compression nut 120 is screwed in towards the direction close to the end of the rotating shaft 110 where the collet 400 is installed, the mandrel loose piece 130 is directly pushed, the mandrel loose piece 130 transmits the pushing force to the shaft pin 700, and a space allowance is reserved at the penetrating position of the shaft pin 700 on the rotating shaft 110 for the shaft pin 700 to move along the axial direction of the rotating shaft relative to the rotating shaft, so that the pushing force can be transmitted to the core rod 500 through the shaft pin 700, and the core rod 500 is driven to move linearly along the axial direction of the rotating shaft 110.
In one embodiment, the bottom of the core rod 500 is threaded, a threaded hole is formed in the upper portion of the collet 400 connected to the core rod 500, and the core rod 500 is in threaded connection with the collet 400, so that when the core rod 500 moves linearly along the axial direction of the rotating shaft 110, the collet 400 is driven to move synchronously.
In one embodiment, with continued reference to fig. 1, the elastic member is a disc spring, which has the advantages of small deformation, high load-bearing capacity, and space saving, and can save space inside the rotating shaft 110 as much as possible on the premise of providing a sufficient acting force for the core rod 500. The core rod 500 is integrally in the shape of a stepped shaft, one end of the disc spring abuts against the stepped surface of the core rod 500, and the other end abuts against a support surface formed by inward extension of the inner wall of the rotating shaft 110. When the compression nut 120 is screwed downwards to push the core rod 500, the belleville spring is in a compressed state, the core rod 500 is pushed upwards by the belleville spring, but because the compression nut 120 is in threaded connection with the inner wall of the shell 200, the belleville spring cannot push the core rod 500 upwards, the handle 140 needs to be pulled in the opposite direction, namely, the compression nut 120 is screwed in the direction away from the end part of the rotating shaft 110 on which the collet 400 is installed, at the moment, the restoring force of the belleville spring pushes the core rod 500 to move the core rod 500 upwards to drive the collet 400 to move synchronously, so that the depth of the collet 400 inserted into the rotating shaft 110 is increased, the tool 100 is clamped by the collet 400, and the process of installing the tool 100 is completed.
In one embodiment, the other end of the rotating shaft 110 is connected to a belt pulley 800, and the belt pulley 800 is used for driving the rotating shaft 110 to rotate. The pulley 800 is connected to a driving motor through a transmission mechanism, such as a belt, and the driving motor drives the pulley 800 to rotate, so as to drive the rotating shaft 110 to rotate, and finally, the cutter 100 at the end of the rotating shaft 110 has a cutting function.
The application also provides a key processing machine, which comprises the mechanical spindle capable of changing the tool quickly. The application provides a key processing machine, collet chuck 400 through the machine spindle makes cutter 100 detachably install on pivot 110 to realize the dismantlement of cutter 100 through rotating gland nut 120, and install cutter 100 through the effort of elastic component 600, accomplish the tool changing process, operation process is very simple.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A machine spindle for rapid tool change, comprising:
the rotary shaft is of a hollow structure;
the shell is sleeved outside the rotating shaft and is coaxially arranged with the rotating shaft, and the shell is connected with the rotating shaft through a bearing;
the collet chuck is arranged in one end of the rotating shaft;
the core rod is positioned in the rotating shaft and connected with the collet chuck, and when the core rod moves linearly along the axial direction of the rotating shaft, the core rod drives the collet chuck to move synchronously;
the compression nut is in threaded connection with the inner wall of the shell, and when the compression nut is screwed in towards the direction close to the end part of the rotating shaft on which the collet is installed, the core rod is pushed to do linear motion along the axial direction of the rotating shaft;
the elastic piece is connected to the core rod and used for providing acting force to enable the core rod to do linear motion along the axial direction of the rotating shaft and the direction far away from the end part of the rotating shaft where the collet is installed.
2. The machine spindle of claim 1, further comprising a handle and a drive ring; the handle is fixedly connected with the transmission ring; the transmission ring encircles gland nut sets up, gland nut's tip has seted up external splines along circumference, the internal spline has been seted up to the relevant position of transmission ring, the transmission ring with gland nut splined connection.
3. The mechanical spindle of claim 1, wherein a mandrel loose piece and a shaft pin are arranged below the compression nut; the mandrel loose piece is fixedly connected with the shaft pin; the mandrel loose piece is sleeved on the rotating shaft; the shaft pin penetrates through the rotating shaft and the core rod along the direction vertical to the axis of the rotating shaft, and the shaft pin can move along the axis direction of the rotating shaft relative to the rotating shaft so as to drive the core rod to push the core rod to do linear motion along the axial direction of the rotating shaft.
4. A machine spindle according to claim 1, wherein the resilient member is a disc spring; one end of the disc spring is abutted against the inner wall of the rotating shaft, and the other end of the disc spring is abutted against the core rod.
5. The mechanical spindle of claim 1, wherein the core rod is threaded at a bottom thereof, a threaded hole is formed at a corresponding position of the collet, and the core rod is threadedly connected to the collet.
6. The mechanical spindle of claim 1, wherein a belt pulley is connected to the other end of the rotating shaft, and the belt pulley is used for driving the rotating shaft to rotate.
7. A key processing machine, characterized in that it comprises a machine spindle according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396912.3U CN216028112U (en) | 2021-09-30 | 2021-09-30 | Mechanical main shaft and key processing machine capable of changing tools quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396912.3U CN216028112U (en) | 2021-09-30 | 2021-09-30 | Mechanical main shaft and key processing machine capable of changing tools quickly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216028112U true CN216028112U (en) | 2022-03-15 |
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ID=80547631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122396912.3U Active CN216028112U (en) | 2021-09-30 | 2021-09-30 | Mechanical main shaft and key processing machine capable of changing tools quickly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216028112U (en) |
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2021
- 2021-09-30 CN CN202122396912.3U patent/CN216028112U/en active Active
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