阅读说明：本技术 一种用于车床的车刀快速式夹持装置 (Lathe tool quick clamping device for lathe ) 是由 董延雨 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种用于车床的车刀快速式夹持装置,包括旋转头、刀架座和螺旋推杆,所述的旋转头包括旋柄和旋盖,所述的旋盖内部中心设有主轴,所述的刀架座包括刀架上盖、刀架中段和刀架底座,所述的刀架上盖形状为方形壳体,刀架上盖内部包括斜齿棘轮、斜齿轮和螺旋推杆,所述的刀架中段为方形壳体,刀架中段内部包括棘轮和止动爪,所述的刀架底座为方形实心底座,所述的斜齿轮与斜齿棘轮相连,所述的斜齿棘轮与主轴相连,本发明主要目的在于当旋转头旋转时带动主轴,主轴左旋时可以使刀架座旋转调节刀位的同时带动螺旋推杆向上运动,使车刀松开,当主轴右旋时可以使刀架座固定旋转位置的同时带动螺旋推杆向下运动,使车刀夹紧。(The invention discloses a quick clamping device for a lathe tool, which comprises a rotating head, a tool rest seat and a spiral push rod, wherein the rotating head comprises a rotating handle and a rotating cover, a main shaft is arranged at the center inside the rotating cover, the tool rest seat comprises a tool rest upper cover, a tool rest middle section and a tool rest base, the tool rest upper cover is in a square shell, the tool rest upper cover internally comprises a helical ratchet wheel, a helical gear and the spiral push rod, the tool rest middle section is in a square shell, the tool rest middle section internally comprises a ratchet wheel and a locking claw, the tool rest base is a square solid base, the helical gear is connected with the helical ratchet wheel, and the helical gear is connected with the main shaft. So that the turning tool is clamped.)

1. A quick clamping device for a lathe tool of a lathe is characterized by comprising a rotating head, a tool rest seat and a spiral push rod, wherein the rotating head comprises a rotating handle and a rotating cover, the rotating handle is connected with the outer part of the rotating cover in an inclined mode, a main shaft is arranged at the center of the inner part of the rotating cover, the main shaft is arranged in the center of the tool rest seat, the tool rest seat comprises a tool rest upper cover, a tool rest middle section and a tool rest base, the tool rest upper cover is in a square shell shape, an inclined-tooth ratchet wheel, a helical gear and the spiral push rod are arranged in the tool rest upper cover, the tool rest middle section is in a square shell shape, the tool rest middle section comprises a ratchet wheel and a locking claw, the tool rest base is in a square solid base, the push rod extending holes of the spiral push rod are formed in the periphery of the bottom of the tool rest upper cover, the spiral push rod is arranged at the extending holes of the tool rest upper cover, the spiral push rod is connected with the helical gear, the bevel gear is connected with the helical gear ratchet wheel, the helical gear ratchet wheel is connected with the main shaft, the ratchet wheel is connected with the main shaft, and the stop pawl is connected with the inner wall of the middle section of the tool rest.

2. The quick clamping device for the lathe tool of claim 1, wherein the spindle is connected with the screw cap, the spindle passes through the upper cover of the tool rest, the middle section of the tool rest and the base of the tool rest from the center, and the spindle is connected with the base of the tool rest through a bearing.

3. The turning tool rapid clamping device for the lathe according to claim 1, wherein the helical ratchet wheel is a left-handed helical ratchet wheel and a right-handed helical ratchet wheel, the helical ratchet wheel is a trapezoidal ratchet wheel with a narrow top and a wide bottom, the narrow circles of the left-handed helical ratchet wheel and the right-handed helical ratchet wheel are opposite and connected with the main shaft, and the installation gaps of the left-handed helical ratchet wheel and the right-handed helical ratchet wheel are connected with the helical gears.

4. The quick lathe tool clamping device as claimed in claim 1, wherein the ratchet wheel is provided at a lower end of the inside of the middle section of the tool holder, the ratchet wheel is connected to the spindle, and the ratchet teeth of the ratchet wheel are connected to the holding pawl.

5. The device as claimed in claim 4, wherein the locking pawl is connected to the mounting seat inside the middle section of the tool holder by a pin.

6. The quick clamping device for the lathe tool of claim 4, wherein a C-shaped mounting seat is arranged at the lower end inside the middle section of the tool rest, and a pin mounting through hole is formed in the C-shaped mounting seat.

7. The turning tool rapid-type clamping device for the lathe according to claim 1, wherein the screw push rod comprises a push-down push rod and a screw sleeve.

Technical Field

The invention belongs to the technical field of turning tool fixtures, and particularly relates to a turning tool rapid clamping device for a lathe.

Background

The lathe tool rest is a device for fixing a lathe tool, and mainly has the functions of completing various and even all machining processes in one-time clamping of a workpiece so as to shorten the auxiliary time of machining and reduce errors caused by multiple installation of the workpiece in the machining process, thereby improving the machining efficiency and the machining precision of a machine tool, and is an indispensable device in the existing lathe machining; the existing lathe tool rest has certain defects when in use, the lathe tool rest is not convenient enough when a tool is installed, and the tool needs to be screwed down independently to clamp a bolt when the tool is clamped, so that the tool rest of the lathe convenient to clamp is provided.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a turning tool quick-type clamping device for a lathe.

A turning tool rapid clamping device for a lathe comprises a rotating head, a tool rest seat and a spiral push rod, wherein the rotating head comprises a rotating handle and a rotating cover, the rotating handle is connected with the outer part of the rotating cover in an inclined mode, a main shaft is arranged at the center of the inner part of the rotating cover, the main shaft is arranged in the center of the tool rest seat, the tool rest seat comprises a tool rest upper cover, a tool rest middle section and a tool rest base, the tool rest upper cover is in a square shell shape, the tool rest upper cover comprises a helical gear, a helical gear and a spiral push rod, the tool rest middle section is in a square shell shape, the tool rest base is in a square solid base, the push rod extending holes of the spiral push rod are formed in the periphery of the bottom of the tool rest upper cover, the spiral push rod is arranged at the position of the push rod extending hole of the tool rest upper cover and is connected with the helical gear, the helical gear is connected with the helical gear, the helical ratchet wheel is connected with the main shaft, the ratchet wheel is connected with the main shaft, and the stopping claw is connected with the inner wall of the middle section of the tool rest.

Furthermore, the main shaft is connected with the screw cap, the main shaft penetrates through the upper cover of the tool rest, the middle section of the tool rest and the tool rest base from the center, and the main shaft is connected with the tool rest base through a bearing.

Furthermore, the helical ratchet wheel is a left helical ratchet wheel and a right helical ratchet wheel, the helical ratchet wheel is a trapezoidal ratchet wheel with a narrow top and a wide bottom, the narrow circles of the left helical ratchet wheel and the right helical ratchet wheel are opposite to each other and connected with the main shaft, and the installation gap between the left helical ratchet wheel and the right helical ratchet wheel is connected with the helical gear.

Furthermore, the ratchet wheel is arranged at the lower end of the inner part of the middle section of the tool rest, the ratchet wheel is connected with the main shaft, and the ratchet of the ratchet wheel is connected with the stop pawl.

Further, the dogs are attached to the mount inside the middle section of the tool holder using pins.

Furthermore, a C-shaped mounting seat is arranged at the lower end of the inner part of the middle section of the tool rest, and a pin mounting through hole is formed in the C-shaped mounting seat.

Further, the helical push rod includes a push rod and a helical sleeve.

Has the advantages that:

according to the invention, the spiral push rod is arranged in the tool rest base and is connected to the helical tooth ratchet wheel arranged on the main shaft through the helical gear, the main shaft is driven when the rotating head rotates, the left-handed helical tooth ratchet wheel and the ratchet wheel are driven when the main shaft rotates leftwards, the tool rest base can rotate to adjust the tool position and simultaneously drive the spiral push rod to move upwards, so that the turning tool is loosened, and the right-handed helical tooth ratchet wheel is driven when the main shaft rotates rightwards, so that the helical push rod is driven to move downwards while the tool rest base fixes the rotating position, and the turning tool is clamped.

Drawings

FIG. 1 is an oblique view of a turning tool quick clamp for a lathe;

FIG. 2 is a half sectional view of a turning tool quick clamp for a lathe;

in the figure: 1. the tool rest comprises a rotary handle, 2, a rotary cover, 3, a tool rest upper cover, 4, a tool rest middle section, 5, a tool rest base, 6, a main shaft, 7, a ratchet wheel, 8, a stop pawl, 9, a downward pressing push rod, 10, a spiral sleeve, 11, a helical gear, 12, a left-handed helical gear ratchet wheel, 13 and a right-handed helical gear ratchet wheel.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

The implementation example is as follows:

a turning tool rapid clamping device for a lathe comprises a rotating head, a tool rest seat and a spiral push rod, wherein the rotating head comprises a rotating handle and a rotating cover, the rotating handle is connected with the outer part of the rotating cover in an inclined mode, a main shaft is arranged at the center of the inner part of the rotating cover, the main shaft is arranged in the center of the tool rest seat, the tool rest seat comprises a tool rest upper cover, a tool rest middle section and a tool rest base, the tool rest upper cover is in a square shell shape, the tool rest upper cover comprises a helical gear, a helical gear and a spiral push rod, the tool rest middle section is in a square shell shape, the tool rest base is in a square solid base, the push rod extending holes of the spiral push rod are formed in the periphery of the bottom of the tool rest upper cover, the spiral push rod is arranged at the position of the push rod extending hole of the tool rest upper cover and is connected with the helical gear, the helical gear is connected with the helical gear, the helical ratchet wheel is connected with the main shaft, the ratchet wheel is connected with the main shaft, and the stopping claw is connected with the inner wall of the middle section of the tool rest.

As shown in figure 1, the tool rest base is composed of a tool rest upper cover 3, a tool rest middle section 4 and a tool rest base 5, a rotating head composed of a rotating cover 2 and a rotating handle 1 is arranged at the top of the tool rest base, a push-down rod 9 is arranged around the lower end of the tool rest upper cover, and the rotating fixing of the tool rest base and the up-down movement of the push-down rod 9 can be controlled through rotating the rotating head.

As shown in fig. 2, a main shaft is arranged inside the screw cap, the rotation of the screw cap can drive the rotation of the main shaft, the main shaft penetrates through the upper tool rest cover 3, the middle tool rest section 4 and the center of the tool rest base 5, a bearing is arranged at the joint of the main shaft 6 and the tool rest base 5 to enable the tool rest base to normally rotate, a spiral push rod, a helical gear 11 and a helical tooth ratchet wheel are arranged inside the upper tool rest cover 3, the helical tooth ratchet wheel is composed of a left-handed helical tooth ratchet wheel 12 and a right-handed helical tooth ratchet wheel 13 and is installed on the main shaft 6, the left-handed helical tooth ratchet wheel 12 and the right-handed helical tooth ratchet wheel 13 are driven to rotate through the rotation of the main shaft 6, the helical gear 11 is arranged between the left-handed helical tooth ratchet wheel 12 and the right-handed helical tooth ratchet wheel 13, a ratchet wheel 7 and a stopping claw 8 are further arranged at the bottom of the middle tool rest section 4, the ratchet wheel 7 is arranged on the main shaft 6, and the stopping claw 8 is installed inside the middle tool rest section 4.

When the spindle 6 rotates left, the left-handed helical tooth ratchet 12 can drive the helical gear 11 to rotate left, the right-handed helical tooth ratchet 13 cannot drive the helical gear 11, the helical gear 11 can drive the push rod 9 of the spiral push rod to move up in left rotation, and simultaneously, because the left-handed helical tooth of the spindle 6 can drive the ratchet 7 to rotate left, when the ratchet 7 rotates left, the stop pawl 8 cannot stop the ratchet 7, the spindle 6 can drive the tool rest base to rotate, thereby adjusting the function of the tool rest position, and when the push rod 9 moves up in down, the turning tool on the tool rest base can be loosened and taken down.

When the spindle 6 rotates rightwards, the right-handed helical gear ratchet 13 can drive the helical gear 11 to rotate rightwards, the left-handed helical gear ratchet 12 cannot drive the helical gear 11, the helical gear 11 can drive the push rod 9 of the spiral push rod to move downwards rightwards, meanwhile, the right-handed helical gear 6 can drive the ratchet 7 to rotate rightwards, when the ratchet 7 rotates rightwards, the stop pawl 8 normally works to stop the ratchet 7, the spindle 6 cannot drive the tool rest base to rotate, and therefore the function of fixedly adjusting the tool rest position is achieved, and when the push rod 9 moves downwards, a turning tool on the tool rest base can be clamped and fixed.

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 invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.