CN211218688U

CN211218688U - Lathe convenient to ring gear hole turning

Info

Publication number: CN211218688U
Application number: CN201921794234.2U
Authority: CN
Inventors: 李敏; 张凯
Original assignee: Changzhou Xinheli Precision Machinery Co ltd
Current assignee: Changzhou Xinheli Precision Machinery Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-11
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a lathe convenient to ring gear hole turning belongs to lathe technical field, and its technical scheme main points are, including the frame, be connected with relative and coaxial three-jaw chuck and the lathe tool that sets up in the frame, the centre gripping has the cramping body on the three-jaw chuck, and cramping body one end is connected with the installation piece and stretches out movable jack catch setting. First mounting groove has been seted up to centre of axle department of clamping body, and the installation piece runs through its axle center and has seted up first hole of dodging. The clamping body is provided with a first notch for placing the gear ring, the inner wall of the clamping body is provided with a first positioning groove facing the first notch, and the gear ring is positioned in the first positioning groove; the second installation piece is equipped with in the first butt piece of ring gear butt towards ring gear one side, and first butt piece and ring gear butt are equipped with compression spring, compression spring one end butt ring gear in the first mounting groove. The utility model is suitable for a hole turning of thin slice ring gear has the centre gripping of being convenient for, can reduce the damage of centre gripping to the ring gear appearance to can prevent the effect that the ring gear drops.

Description

Lathe convenient to ring gear hole turning

Technical Field

The utility model belongs to the technical field of the lathe technique and specifically relates to a lathe convenient to ring gear hole turning is related to.

Background

A lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool. The lathe mainly comprises a frame, and the frame consists of a main spindle box, a feeding box, a slide carriage box, a lathe body, a tailstock and a tool rest.

The mechanical device for clamping workpieces on the conventional common lathe usually adopts a three-jaw chuck connected to a spindle box, the three-jaw chuck generally comprises a chuck body, a movable jaw and a jaw driving mechanism, threads are arranged below guide parts of three jaws on the three-jaw chuck and meshed with planar threads on the back of a disc bevel gear, when a wrench is adopted to rotate a bevel pinion in a square hole on the three-jaw chuck, the disc gear can rotate along with the three jaws, the planar threads on the back simultaneously drive the three jaws to approach or withdraw from the center of the three-jaw chuck, and the three-jaw chuck can be used for clamping workpieces with different diameters.

As shown in figure 1, an existing gear ring workpiece is characterized in that a gear ring 1 is made of low-carbon steel and is 1-1.2 mm thick, a plurality of fine teeth 11 are circumferentially distributed on the gear ring 1, and an inner hole 12 needs to be formed in the axis of the gear ring 1.

However, when the gear ring is directly clamped by the common three-jaw chuck, the gear ring is thin and irregular in appearance, so that the gear ring is difficult to be clamped by the common three-jaw chuck, the appearance of the processed gear ring is easy to deform when the gear ring is clamped, and the processed gear ring is easy to fall off when the gear ring is loose to be clamped, so that safety accidents occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lathe for ring gear hole turning has the centre gripping thin slice ring gear of being convenient for, can reduce the damage of centre gripping to the work piece appearance to can prevent the effect that the ring gear drops.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a lathe convenient for turning an inner hole of a gear ring comprises a rack, wherein a three-jaw chuck and a tool rest assembly which are oppositely arranged are connected to the rack, the three-jaw chuck comprises movable jaws which are uniformly distributed along the circumferential direction of the three-jaw chuck, clamping bodies are fixedly clamped on the movable jaws, and the tool rest assembly comprises a turning tool which is coaxially arranged with the clamping bodies; one end of the clamping body is connected with an installation block, and the installation block extends out of the movable clamping jaw; the shaft center of the clamping body is provided with a first mounting groove, the mounting block penetrates through the shaft center of the mounting block and is provided with a first avoidance hole, and the diameters of the first mounting groove and the first avoidance hole are both larger than the diameter of an inner hole of the gear ring;

a first notch for a gear ring to pass through is formed in the side wall of one end, facing the first avoidance hole, of the clamping body, a first positioning groove is formed in the inner wall, facing the first notch, of the clamping body, and the gear ring is located in the first positioning groove;

the installation piece is equipped with first butt piece towards ring gear one side, first butt piece and ring gear butt, be equipped with compression spring in the first mounting groove, compression spring one end with first mounting groove tank bottom fixed connection, other end butt ring gear.

Through adopting above-mentioned technical scheme, install the ring gear on the centre gripping body, the centre gripping of being convenient for, and can not harm by processing ring gear appearance, prevent that the ring gear warp. The clamping body is fixed through the compression spring and the mounting block, so that safety accidents caused by the fact that the processed gear ring falls off are prevented. Compression spring has elasticity, can make things convenient for the multi-disc ring gear to be processed after being packed into first mounting groove through first breach. The first avoidance hole is used for enabling a turning tool to penetrate through the inner hole turned by the mounting block.

The utility model discloses further set up to, the activity jack catch orientation the second constant head tank has been seted up to holding body one side, the holding body orientation second constant head tank integrated into one piece has the second locating piece, the embedding of second locating piece the second constant head tank sets up.

Through adopting above-mentioned technical scheme, second locating piece and second constant head tank are used for conveniently when the installation clamping body, fix a position the clamping body and the circumference position of activity jack catch to can prevent that the clamping body from droing at the processing ring gear in-process.

The utility model discloses further set up to, compression spring is towards ring gear one end fixedly connected with second butt piece, the second butt piece runs through its axle center and has seted up the second and dodge the hole, the hole diameter of hole diameter more than or equal to ring gear is dodged to the second, second butt piece is towards ring gear one end and ring gear butt.

Through adopting above-mentioned technical scheme, set up second butt joint piece, can enlarge the area of butt ring gear for the ring gear is more stable with the fixed of clamping body at the in-process of processing. The second dodges the hole and is used for preventing that the lathe tool from directly touching the butt joint piece and receiving wearing and tearing after penetrating the ring gear.

The utility model discloses further set up to, second butt joint piece is the magnetism material.

Through adopting above-mentioned technical scheme, the ring gear can tightly be held to the second butt piece in the course of working, further prevents that the ring gear from being thrown away because of rotatory turning in the course of working.

The utility model discloses further set up to, be connected with the jetting pipe in the frame, the mouth of pipe orientation of jetting pipe first dodge the hole setting.

Through adopting above-mentioned technical scheme, because the ring gear is fixed on the clamping body, so iron fillings after the cutting directly fall into first mounting groove, inconvenient clearance, the jetting pipe is used for convenient blowing off iron fillings from first breach by first dodging hole department, prevents that iron fillings from piling up.

The utility model discloses further set up to, lie in the frame three-jaw chuck department can dismantle and be connected with the protection casing, just lie in the frame the below of cramping body is equipped with the chip groove.

Through adopting above-mentioned technical scheme, the protection casing is used for preventing the iron fillings that are blown out from scattering everywhere, and inconvenient collection and clearance, and iron fillings can directly fall into the chip groove under sheltering from of protection casing and by centralized processing.

The utility model is further arranged in that the tool rest component also comprises a tool rest plate and a tool apron, the tool apron is fixedly connected on the tool rest plate, and the turning tool is connected on the tool apron; the rack is provided with a tool rest slide rail, and the tool rest plate is positioned on the tool rest slide rail and connected with the tool rest slide rail in a sliding manner.

Through adopting above-mentioned technical scheme, the lathe tool can realize sliding along the extending direction of sliding rail, conveniently feeds the processing ring gear.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the clamping body and the mounting block, the sheet gear ring can be clamped conveniently, the damage of clamping to the appearance of a workpiece can be reduced, and the gear ring can be prevented from falling off;

2. through the arrangement of the compression spring and the second abutting block, the effects of processing a plurality of gear ring inner holes at one time and improving the processing efficiency can be achieved;

3. through the setting of second locating piece and second constant head tank, can play the effect of being convenient for fix a position the centre gripping body and activity jack catch circumferential position, and prevent that the centre gripping body from droing.

Drawings

Fig. 1 is a schematic view of the entire structure of a ring gear in the related art.

Fig. 2 is a schematic view of the overall structure of the lathe in this embodiment.

Fig. 3 is an exploded view of the three-jaw chuck and the clamping body in this embodiment.

Fig. 4 is a schematic cross-sectional view of the clip of the present embodiment.

In the figure, 1, a gear ring; 11. fine teeth; 12. an inner bore; 2. a frame; 21. a tool holder slide rail; 22. a blowing pipe; 23. a protective cover; 24. a chip groove; 3. a three-jaw chuck; 31. a movable jaw; 32. a second positioning groove; 4. a tool holder assembly; 41. turning a tool; 42. a tool rest plate; 43. a tool apron; 5. a clamping body; 51. a second positioning block; 52. a first mounting groove; 53. a first notch; 54. a first positioning groove; 55. a first abutment block; 56. a second avoidance hole; 57. connecting a clamping hook; 58. a compression spring; 59. a blowing hole; 591. an air pump; 6. mounting blocks; 61. a second abutment block; 62. the first avoidance hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 2, the lathe for turning the inner hole 12 of the gear ring 1 disclosed in the present embodiment includes a frame 2, and the frame 2 is connected with a three-jaw chuck 3, a tool rest assembly 4, a blowing pipe 22, a protective cover 23 and a chip groove 24. The three-jaw chuck 3 holds a clamping body 5, and the gear ring 1 is clamped on the clamping body 5. Three-jaw chuck 3 sets up with tool rest assembly 4 is relative, and tool rest assembly 4 includes lathe tool 41, and lathe tool 41 sets up towards holding body 5, and lathe tool 41 cutting edge department and the coaxial setting in 5 axle centers of holding body, the turning of being convenient for 1 hole 12 of ring gear.

Referring to fig. 2, the tool rest assembly 4 further includes a tool rest plate 42, a tool seat 43 is fixedly connected to the tool rest plate 42, and the turning tool 41 is fixed to the tool seat 43 through a bolt. The rack 2 is provided with a tool rest slide rail 21, and the tool rest plate 42 is positioned on the tool rest slide rail 21 and connected with the tool rest slide rail 21 in a sliding manner. During machining, the turning tool 41 is fed toward the clamping body 5 side in the extending direction of the tool rest slide rail 21 to turn the inner hole 12 of the ring gear 1. The blowing pipe 22 is connected with the air pump 591, the protective cover 23 is hinged with the frame 2, the pipe orifice of the blowing pipe 22 is blown towards the clamping body 5, the protective cover 23 is put down and covered above the three-jaw chuck 3 and the clamping body 5, and the blown iron chips fall into the scrap discharge groove 24 below the clamping body 5 and can be intensively processed.

Referring to fig. 2 and 3, preferably, in the present embodiment, three movable jaws 31 are uniformly distributed on the side of the three-jaw chuck 3 facing the tool rest assembly 4 along the circumferential direction thereof, and the clamping body 5 is fixedly clamped by the movable jaws 31. In order to fix the circumferential position of the clamping body 5 on the three-jaw chuck 3 and prevent the three-jaw chuck 3 from being loose in clamping, the clamping body 5 is separated from the clamping during rotation, a second positioning groove 32 is formed in one side, facing the clamping body 5, of the movable clamping jaw 31, a second positioning block 51 is integrally formed in one side, facing the second positioning groove 32, of the clamping body 5, and the second positioning block 51 is embedded into the second positioning groove 32.

Referring to fig. 2 and 4, the clamping body 5 is provided with a first mounting groove 52 along the axial center thereof, and the notch of the first mounting groove 52 is disposed toward one side of the turning tool 41. A compression spring 58 is installed in the first installation groove 52, one end of the compression spring 58 abuts against the bottom of the first installation groove 52, and the other end is connected with a second abutting block 61. The clamping body 5 stretches out movable jack catch 31 one end joint and has installation piece 6, and runs through its wall thickness along its axis direction on the installation piece 6 and seted up first dodge hole 62, in order to avoid lathe tool 41 to interfere with installation piece 6, first dodge hole 62 diameter is greater than the outside diameter of lathe tool 41 cutting edge department.

Referring to fig. 3 and 4, the first mounting groove 52 is provided with a first notch 53 towards the side wall of one end of the mounting block 6, through which the gear ring 1 can pass, the clamping body 5 is provided with a first positioning groove 54 towards the side wall of one end of the mounting block 6, and the notch of the first positioning groove 54 is arranged towards the first notch 53. After the gear ring 1 is installed from the first notch 53, the gear ring 1 is clamped into the first positioning groove 54 towards one side of the bottom of the rack 2 and fixed, and the second abutting block 61 and the mounting block 6 abut from two sides of the gear ring 1 to prevent the gear ring 1 from falling off from the first notch 53.

Referring to fig. 4, further, in order to make the abutting of the mounting block 6 side and the gear ring 1 tighter and not affect the clamping of the mounting block 6 and the clamping body 5, a plurality of second abutting blocks 61 are integrally formed on the mounting block 6 side facing the clamping body 5, and the second abutting blocks 61 directly abut against the gear ring 1.

Referring to fig. 2 and 4, preferably, in order to make the second abutting block 61 move along with the expansion and contraction of the compression spring 58, a plurality of connecting hooks 57 are provided on the side of the second abutting block 61 facing the compression spring 58, and the connecting hooks 57 hook the circumferential edge of the compression spring 58. In this embodiment, the second abutting block 61 is made of a magnetic material, and a magnetic iron is selected as the material of the second abutting block 61, so as to further fix the gear ring 1. In order to avoid the abrasion of the turning tool 41 caused by the fact that the turning tool 41 directly collides with the second abutting block 61 after passing through the gear ring 1 during turning, the second avoiding hole 56 is formed in the axis of the second abutting block 61, and the diameter of the second avoiding hole 56 is larger than that of the inner hole 12 of the gear ring 1.

The implementation principle of the above embodiment is as follows: the first abutting block 55 is compressed, the unprocessed ring gear 1 is stuffed into the first mounting groove 52 through the first notch 53, and the second abutting block 61 abuts against the ring gear 1 side. In this embodiment, the axial width of the first notch 53 and the groove width of the first positioning groove 54 may be increased according to actual machining requirements, and the plurality of ring gears 1 may be simultaneously machined. The mounting block 6 is then mounted such that the second abutment block 61 abuts the gear ring 1, then one of the second positioning blocks 51 is inserted into one of the second positioning slots 32, and then the movable jaw 31 is clamped such that the remaining second positioning blocks 51 also snap into the second positioning slots 32. And then the tool rest assembly 4 is operated to slide towards the three-jaw chuck 3, and then the lathe is started, so that the three-jaw chuck 3 rotates to drive the clamping body 5 to rotate, and the turning tool 41 continuously feeds for cutting.

When the machining is finished and the gear ring 1 is taken away, the tool rest assembly 4 is moved backwards, the protective cover 23 is put down, the nozzle of the blowing pipe 22 is blown towards the first avoidance hole 62, and the cut scrap iron can be blown out from the first notch 53. In order to completely blow out the iron filings in the clamping body 5, a through blowing hole 59 (see fig. 4) can be formed in the groove bottom of the first installation groove 52, the clamping body 5 is taken down from the three-jaw chuck 3, the blowing pipe 22 is blown at the blowing hole, the blowing air flow penetrates through the clamping body 5, and the iron filings are blown out from the first avoiding hole 62.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a lathe convenient to ring gear (1) hole (12) turning, includes frame (2), be connected with three-jaw chuck (3) and knife rest assembly (4) of relative setting on frame (2), three-jaw chuck (3) are including movable jack catch (31) along its circumference evenly distributed, its characterized in that: the movable clamping jaw (31) is fixedly clamped with a clamping body (5), and the tool rest assembly (4) comprises a turning tool (41) which is coaxial with the clamping body (5); one end of the clamping body (5) is connected with an installation block (6), and the installation block (6) extends out of the movable clamping jaw (31); the shaft center of the clamping body (5) is provided with a first mounting groove (52), the mounting block (6) penetrates through the shaft center to be provided with a first avoiding hole (62), and the diameters of the first mounting groove (52) and the first avoiding hole (62) are larger than the diameter of an inner hole (12) of the gear ring (1);

a first notch (53) through which the gear ring (1) can pass is formed in the side wall of one end, facing the first avoidance hole (62), of the clamping body (5), a first positioning groove (54) is formed in the inner wall, facing the first notch (53), of the clamping body (5), and the gear ring (1) is located in the first positioning groove (54);

installation piece (6) are equipped with first butt piece (55) towards ring gear (1) one side, first butt piece (55) and ring gear (1) butt, be equipped with compression spring (58) in first mounting groove (52) mounting hole, compression spring (58) one end with first mounting groove (52) tank bottom fixed connection, other end butt ring gear (1).

2. A lathe for facilitating the turning of a bore (12) in a ring gear (1) according to claim 1, characterised in that: the movable clamping jaw (31) faces towards one side of the clamping body (5) and is provided with a second positioning groove (32), the clamping body (5) faces towards the second positioning groove (32) and is integrally formed with a second positioning block (51), and the second positioning block (51) is embedded into the second positioning groove (32).

3. A lathe for facilitating the turning of a bore (12) in a ring gear (1) according to claim 2, characterized in that: compression spring (58) are towards ring gear (1) one end fixedly connected with second butt piece (61), second butt piece (61) run through its axle center and have seted up second and dodge hole (56), hole (56) diameter more than or equal to hole (12) diameter of ring gear (1) is dodged to the second, second butt piece (61) are towards ring gear (1) one end and ring gear (1) butt.

4. A lathe for facilitating the turning of a bore (12) in a ring gear (1) according to claim 3, characterized in that: the second abutting block (61) is made of magnetic materials.

5. A lathe for facilitating the turning of a bore (12) in a ring gear (1) according to claim 1, characterised in that: an injection pipe (22) is connected to the frame (2), and a pipe opening of the injection pipe (22) is arranged towards the first avoidance hole (62).

6. A lathe for facilitating the turning of a bore (12) in a ring gear (1) according to claim 5, characterized in that: the clamping device is characterized in that the rack (2) is provided with a protective cover (23) detachably connected to the three-jaw chuck (3), and the rack (2) is provided with a chip groove (24) below the clamping body (5).

7. A lathe for facilitating the turning of a bore (12) in a ring gear (1) according to claim 1, characterised in that: the tool rest assembly (4) further comprises a tool rest plate (42) and a tool apron (43), the tool apron (43) is fixedly connected to the tool rest plate (42), and the turning tool (41) is connected to the tool apron (43); the tool rest is characterized in that a tool rest sliding rail (21) is arranged on the rack (2), and the tool rest plate (42) is positioned on the tool rest sliding rail (21) and connected with the tool rest sliding rail (21) in a sliding manner.