CN218050389U

CN218050389U - Precise turning structure

Info

Publication number: CN218050389U
Application number: CN202222185886.4U
Authority: CN
Inventors: 黄凡
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-12-16
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses an accurate lathe work structure, including lathe main body, motor, connecting axle and first three-jaw chuck, lathe main body includes base, fixing base, guide rail, rack, first three-jaw chuck is fixed in the one end of connecting axle, the outside one end of fixing base is provided with second three-jaw chuck, the outside of guide rail is provided with and is used for supporting the removal subassembly of operation with removing the second three-jaw chuck. The utility model discloses a set up the second three-jaw chuck and can support the middle section of longer circular machined part, can realize the removal and the fixed of second three-jaw chuck position through removing the subassembly to the realization is kept away from the phenomenon that leads to deformation because of self focus to the circular machined part of different length support, avoids the machined part.

Description

Precise turning structure

Technical Field

The utility model relates to the technical field of machining, specifically a precision lathe work structure.

Background

Turning, that is, lathe machining, is machining of a cylindrical surface, an end surface, a conical surface, a forming surface, a thread, and the like of a workpiece rotated by a turning tool on a lathe. The existing lathe machining generally uses the three-jaw chuck to clamp and fix one end of a machined part, when a longer cylindrical machined part is cut, the center of gravity of the long cylindrical machined part is far away from the three-jaw chuck, and the middle part of the machined part cannot be fixedly supported, so that one end, far away from the three-jaw chuck, of the machined part is bent downwards under the action of self gravity, and the turning precision is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that longer cylinder machined part middle section does not have the support and leads to the material to take place deformation easily and influence the machining precision, the utility model aims to provide an accurate lathe work structure.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a precision lathe work structure, includes lathe main body, motor, connecting axle and first three-jaw chuck, lathe main body includes base, fixing base, the fixing base is fixed in base top one end, the motor passes through bolt assembly and installs in the outer wall one end of fixing base, the output of motor runs through to the fixing base other end and is connected with the connecting axle, first three-jaw chuck is fixed in the one end of connecting axle, the outer wall one end of fixing base is fixed with the guide rail, the guide rail is located the connecting axle under, outer wall one side fixedly connected with rack of guide rail, the outside one end of fixing base is provided with second three-jaw chuck, second three-jaw chuck is located the outside of connecting axle, the outside of guide rail is provided with and is used for supporting the removal subassembly with the removal operation to second three-jaw chuck, it includes to remove the subassembly:

the moving seat is sleeved on the outer wall of the guide rail and fixedly connected with the bottom end of the outer wall of the second three-jaw chuck, the bottom end of the moving seat is rotatably connected with a rotating gear and a guide wheel, and the rotating gear and the guide wheel are symmetrically distributed on two outer sides of the guide rail;

the moving block is connected to one side of the outer wall of the moving seat in a sliding mode, and the bottom end of the moving block extends to the position below the moving seat and is connected with a clamping block;

and the locking bolt penetrates through two sides of the movable block and extends into the movable seat.

As a further aspect of the present invention: the central axis of first three-jaw chuck coincides mutually with the central axis of second three-jaw chuck, the inboard diameter of second three-jaw chuck is greater than the outside diameter of first three-jaw chuck, the jack catch inboard of second three-jaw chuck is provided with the ball.

As a further aspect of the present invention: the end surface section of the guide rail is in a T shape, the end surface of the top end of the guide rail is an arc surface, and the top end of the movable seat is provided with a guide groove matched with the outer wall of the top end of the guide rail.

As the utility model discloses further scheme again: the locking bolt is rotatably connected with the moving block through a bearing, an internal thread groove matched with the outer wall of the moving block in a threaded mode is formed in the inner side of the moving block, and a limiting sliding groove for the moving block to move is formed in the moving block.

As a further aspect of the present invention: the horizontal height of the fixture block is the same as that of the rotating gear, and the fixture block is clamped with the tooth grooves of the rotating gear.

As a further aspect of the present invention: the rotating gear is meshed with the rack, and one side of the outer wall of the guide wheel is tightly attached to the side face of the outer wall of the guide rail.

Compared with the prior art, the beneficial effects of the utility model are that:

can support the middle section of longer circular machined part through setting up the second three-jaw chuck, can make the second three-jaw chuck can not influence the rotation of machined part through the ball, can realize the removal and the fixing of second three-jaw chuck position through removing the subassembly, thereby the realization is to the support of the circular machined part of different length, can avoid longer circular machined part to lead to the phenomenon of deformation because of self focus is kept away from first three-jaw chuck through the cooperation of above a plurality of parts, the machining precision of longer circular machined part has effectively been improved.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a bottom view of the structure of the present invention;

fig. 3 is a schematic structural view of the guide rail and the rack of the present invention;

fig. 4 is a schematic view of the connection between the moving assembly and the second three-jaw chuck according to the present invention.

In the figure: 1. a lathe body; 101. a base; 102. a fixed seat; 103. a guide rail; 104. a rack; 2. a motor; 3. a connecting shaft; 4. a first three-jaw chuck; 5. a second three-jaw chuck; 6. a moving assembly; 601. a movable seat; 602. a rotating gear; 603. a guide wheel; 604. a moving block; 605. a clamping block; 606. locking the bolt; 607. a guide groove; 7. and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model discloses a precision turning structure, including lathe subject 1, motor 2, connecting axle 3 and first three-jaw chuck 4, lathe subject 1 includes base 101, fixing base 102 is fixed in base 101 top one end, motor 2 passes through bolt assembly and installs in the outer wall one end of fixing base 102, motor 2's output runs through to the fixing base 102 other end and is connected with connecting axle 3, first three-jaw chuck 4 is fixed in the one end of connecting axle 3, fixing base 102's outer wall one end is fixed with guide rail 103, guide rail 103 is located connecting axle 3 under, outer wall one side fixedly connected with rack 104 of guide rail 103, fixing base 102's outside one end is provided with second three-jaw chuck 5, second three-jaw chuck 5 is located the outside of connecting axle 3, guide rail 103's outside is provided with and is used for supporting and removes the removal subassembly 6 of operation to second three-jaw chuck 5, remove subassembly 6 includes:

the moving seat 601 is sleeved on the outer wall of the guide rail 103 and fixedly connected with the bottom end of the outer wall of the second three-jaw chuck 5, the bottom end of the moving seat 601 is rotatably connected with a rotating gear 602 and a guide wheel 603, and the rotating gear 602 and the guide wheel 603 are symmetrically distributed on two outer sides of the guide rail 103;

a moving block 604 slidably connected to one side of the outer wall of the moving seat 601, wherein the bottom end of the moving block 604 extends to the lower part of the moving seat 601 and is connected with a fixture block 605;

a locking bolt 606 penetrating through two sides of the moving block 604 and extending into the moving base 601.

In this embodiment: it should be noted that a tool rest is arranged at one end of the base 101, which is far away from the fixed seat 102, and consists of two layers of sliding plates (middle and small sliding plates), a saddle and a tool rest body, and is used for mounting a turning tool and driving the turning tool to move longitudinally, transversely or obliquely, when a short round material needs to be processed, the second three-jaw chuck 5 is located at an initial position, namely, is attached to one end of the outer wall of the fixed seat 102 and is located on the outer side of the connecting shaft 3, and at the moment, the second three-jaw chuck 5 does not affect the processing of a workpiece, and does not affect the screwing and unscrewing operations of the first three-jaw chuck 4; when a longer circular workpiece needs to be machined, the locking bolt 606 can be firstly unscrewed, the moving block 604 moves towards the outer side of the moving seat 601, the moving block 604 drives the fixture block 605 to move, the fixture block 605 is separated from the clamping groove of the rotating gear 602, the locking of the rotating gear 602 is released, then the moving seat 601 can move along the outer wall of the guide rail 103, the moving seat 601 drives the second three-jaw chuck 5 to penetrate through the outer side of the first three-jaw chuck 4, when the distance between the second three-jaw chuck 5 and the first three-jaw chuck 4 is larger than the length of the circular workpiece, the moving of the second three-jaw chuck 5 can be stopped, then the circular workpiece is placed between the second three-jaw chuck 5 and the first three-jaw chuck 4, and one end of the circular workpiece is clamped and fixed through the first three-jaw chuck 4, then, the moving seat 601 is moved again to drive the second three-jaw chuck 5 to move towards the first three-jaw chuck 4, when the second three-jaw chuck 5 moves to the middle section of the circular machined part along the outer side of the circular machined part, the circular machined part can be stopped, then the locking bolt 606 is screwed down, the moving block 604 drives the fixture block 605 to move towards the rotating gear 602, finally, the fixture block 605 is clamped with the tooth socket of the rotating gear 602, namely, the position fixing of the moving seat 601 and the second three-jaw chuck 5 is completed, then the second three-jaw chuck 5 can be screwed through an external wrench, so that the second three-jaw chuck 5 clamps and supports the outer wall of the circular machined part, the phenomenon that the long circular machined part deforms due to the fact that the center of gravity of the long circular machined part is far away from the first three-jaw chuck 5 is avoided, and the machining precision of the long circular machined part is effectively improved.

Please refer to fig. 1, 2 and 4, the central axes of the first three-jaw chuck 4 and the second three-jaw chuck 5 coincide with each other, the inner diameter of the second three-jaw chuck 5 is larger than the outer diameter of the first three-jaw chuck 4, and the inner sides of the jaws of the second three-jaw chuck 5 are provided with balls 7.

In this embodiment: it should be noted that the three-jaw chuck is composed of a chuck body, movable jaws and a jaw driving mechanism, wherein threads are meshed with planar threads on the back of the disc-shaped bevel gear below the guide parts of the three jaws on the three-jaw chuck, when a wrench is used for rotating the bevel pinion through a square hole, the disc-shaped gear rotates, the planar threads on the back simultaneously drive the three jaws to approach or withdraw from the center, workpieces with different diameters can be clamped, the end head of a circular material can be fixedly clamped through the first three-jaw chuck 4, the outer wall of the circular material, which is far away from one end of the first three-jaw chuck 4, can be supported through the second three-jaw chuck 5, a circular workpiece can rotate on the inner side of the second three-jaw chuck 5 through the balls 7, namely, the second three-jaw chuck 5 can support the circular workpiece without affecting the rotation of the circular workpiece.

Please refer to fig. 1 to 4, the cross section of the end surface of the guide rail 103 is "T" shaped, the end surface of the top end of the guide rail 103 is arc-shaped, and the top end of the movable base 601 is provided with a guide groove 607 matched with the outer wall of the top end of the guide rail 103.

In this embodiment: can lead and spacing the removal that removes seat 601 through mutually supporting of guide rail 103 and guide way 607, simultaneously through the structure of the top arcwall face of guide rail 103, make the piece of cutting process can slide away along the arcwall face of guide rail 103, make the piece can not pile up the top at guide rail 103 to be convenient for remove the steady movement operation of seat 601.

Please refer to fig. 2 and 4, the locking bolt 606 is rotatably connected to the moving block 604 through a bearing, an inner thread groove matched with the thread on the outer wall of the moving block 601 is formed on the inner side of the moving block 601, and a limiting sliding groove for the moving block 604 to move is formed in the moving block 601; the horizontal height of the fixture block 605 is the same as the horizontal height of the rotating gear 602, and the fixture block 605 is clamped with the tooth slot of the rotating gear 602; the rotating gear 602 is engaged with the rack 104, and one side of the outer wall of the guide wheel 603 is closely attached to the side surface of the outer wall of the guide rail 103.

In this embodiment: the rotating gear 602 can be locked through the fixture block 605, the position locking of the moving seat 601 can be realized through the matching of the rack 104, the locking bolt 606 can horizontally move along the internal thread groove of the moving seat 601 when rotating, then the locking bolt 606 drives the moving block 604 to move along the inner wall of the limiting sliding groove, and the movement of the fixture block 605 can be realized through the operation, so that the locking and unlocking operation of the rotating gear 602 is facilitated.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a precision lathe work structure, includes lathe body (1), motor (2), connecting axle (3) and first three-jaw chuck (4), lathe body (1) includes base (101), fixing base (102), its characterized in that, the outer wall one end of fixing base (102) is fixed with guide rail (103), guide rail (103) are located connecting axle (3) under, outer wall one side fixedly connected with rack (104) of guide rail (103), the outside one end of fixing base (102) is provided with second three-jaw chuck (5), second three-jaw chuck (5) are located the outside of connecting axle (3), the outside of guide rail (103) is provided with and is used for supporting second three-jaw chuck (5) and removes removal subassembly (6) of operation, remove subassembly (6) and include:

the movable base (601) is sleeved on the outer wall of the guide rail (103) and fixedly connected with the bottom end of the outer wall of the second three-jaw chuck (5), the bottom end of the movable base (601) is rotatably connected with a rotating gear (602) and a guide wheel (603), and the rotating gear (602) and the guide wheel (603) are symmetrically distributed on two outer sides of the guide rail (103);

the moving block (604) is connected to one side of the outer wall of the moving seat (601) in a sliding mode, and the bottom end of the moving block (604) extends to the position below the moving seat (601) and is connected with a clamping block (605);

and the locking bolt (606) penetrates through two sides of the moving block (604) and extends into the moving seat (601).

2. A precision turning construction according to claim 1, characterized in that the first three-jaw chuck (4) coincides with the centre axis of the second three-jaw chuck (5), the inside diameter of the second three-jaw chuck (5) being larger than the outside diameter of the first three-jaw chuck (4), and that the jaws of the second three-jaw chuck (5) are provided with balls (7) inside.

3. The precision turning structure according to claim 1, wherein the cross section of the end surface of the guide rail (103) is T-shaped, the end surface of the top end of the guide rail (103) is arc-shaped, and the top end of the movable base (601) is provided with a guide groove (607) matched with the outer wall of the top end of the guide rail (103).

4. The precision turning structure according to claim 1, wherein the locking bolt (606) is rotatably connected with the moving block (604) through a bearing, an internal thread groove matched with the thread of the outer wall of the moving block (601) is formed in the inner side of the moving block (601), and a limiting sliding groove for moving the moving block (604) is formed in the moving block (601).

5. The precision turning structure according to claim 1, wherein the horizontal height of the fixture block (605) is the same as the horizontal height of the rotating gear (602), and the fixture block (605) is engaged with the tooth grooves of the rotating gear (602).

6. A precision turning structure according to claim 1, wherein the rotating gear (602) is engaged with the rack (104), and one side of the outer wall of the guide wheel (603) is closely attached to the side surface of the outer wall of the guide rail (103).