CN213764893U

CN213764893U - Lathe fixture for machining bearing

Info

Publication number: CN213764893U
Application number: CN202022214860.9U
Authority: CN
Inventors: 郑海龙
Original assignee: Tianjin Longchang Technology Co ltd
Current assignee: Tianjin Longchang Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-23
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a bearing processing especially relates to a turning attachment who processes bearing. A lathe fixture for processing a bearing comprises a chuck, an outer fixture block and an inner fixture block. The utility model has the advantages that: the raw materials of the inner ring or the outer ring of the bearing are placed on the chuck, the driving gear is rotated, the driving gear drives the driven gear and the rotary table to rotate, and when the rotary table rotates, the outer clamping blocks are pushed by the threads to move along the sliding grooves, so that the plurality of outer clamping blocks clamp the outer side of the raw materials together. The inner clamp is placed in an inner hole of the raw material, the knob is rotated, and the knob intelligently rotates towards one direction due to the limitation of the ratchet wheel and the pawl. The knob rotates to drive the push block to rotate, and the push block pushes the inner clamping block to move outwards through the inclined plane, so that the inner clamping block is abutted to the inner hole of the raw material. The annular raw materials are clamped and fixed through the outer clamping block and the inner clamping block, so that the annular raw materials are prevented from being stressed and deformed in the machining process to influence the machining precision.

Description

Lathe fixture for machining bearing

Technical Field

The utility model relates to a bearing processing especially relates to a turning attachment who processes bearing.

Background

The main parts of the bearing comprise an outer ring and an inner ring, and the outer ring and the inner ring are both annular, so that deformation is easily caused when the bearing is stressed, and the processing precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a turning attachment who processes the bearing.

The utility model discloses a realize through following technical scheme:

a lathe fixture for machining a bearing comprises a chuck, outer fixture blocks and an inner fixture, wherein a plurality of radial sliding grooves are formed in the surface of the chuck, the outer fixture blocks are respectively and slidably mounted in the sliding grooves, a plurality of tooth-shaped grooves are formed in one end of each outer fixture block, the chuck is internally and rotatably connected with a rotary disc, one surface of the rotary disc is provided with a convex thread, the thread is inserted into the tooth-shaped grooves, a driven gear is fixedly arranged on the other surface of the rotary disc and is meshed with a driving gear, the inner fixture comprises a connecting ring, inner fixture blocks and a knob, the inner fixture blocks are uniformly distributed on the connecting ring, the inner fixture blocks penetrate through a through hole in the connecting ring, a spring is arranged between each inner fixture block and the connecting ring and pushes the inner fixture blocks to move towards the inside of the connecting ring, the knob is rotatably connected with the connecting ring and is provided with a ratchet wheel and a push block, the connecting ring is provided with a pawl which is abutted against the ratchet wheel, the push blocks are uniformly distributed on the knob, and are provided with inclined planes, the inclined plane of the push block is abutted against the inner clamping block.

According to the technical scheme, preferably, the center of the rotating disc is provided with the rotating shaft, and the rotating shaft is connected with the chuck through the bearing.

According to the technical scheme, preferably, the driving gear and the driven gear are bevel gears, the driving gear is fixedly connected with a gear shaft, and the gear shaft extends out of the chuck and is connected with the rotating handle.

According to above-mentioned technical scheme, preferably, interior fixture block includes clamping part, connecting rod and butt portion, and the clamping part is located the go-between outside, and the connecting rod passes the through-hole of go-between, and butt portion is located the go-between, and butt portion is equipped with ejector pad complex inclined plane, and the spring housing is established outside the connecting rod, and go-between and butt portion are connected respectively to the both ends of spring.

The utility model has the advantages that: the raw materials of the inner ring or the outer ring of the bearing are placed on the chuck, the driving gear is rotated, the driving gear drives the driven gear and the rotary table to rotate, and when the rotary table rotates, the outer clamping blocks are pushed by the threads to move along the sliding grooves, so that the plurality of outer clamping blocks clamp the outer side of the raw materials together. The inner clamp is placed in an inner hole of the raw material, the knob is rotated, and the knob intelligently rotates towards one direction due to the limitation of the ratchet wheel and the pawl. The knob rotates to drive the push block to rotate, and the push block pushes the inner clamping block to move outwards through the inclined plane, so that the inner clamping block is abutted to the inner hole of the raw material. The annular raw materials are clamped and fixed through the outer clamping block and the inner clamping block, so that the annular raw materials are prevented from being stressed and deformed in the machining process to influence the machining precision.

Drawings

Fig. 1 shows a schematic front view structure diagram of an embodiment of the present invention.

Fig. 2 shows a schematic view of an internal clamp structure according to an embodiment of the present invention.

In the figure: 1. the clamping device comprises a chuck, 2. an outer clamping block, 3. an inner clamping block, 4. a sliding groove, 5. a tooth-shaped groove, 6. a rotating disc, 7. a thread, 8. a driven gear, 9. a driving gear, 10. a connecting ring, 11. an inner clamping block, 12. a knob, 13. a spring, 14. a ratchet wheel, 15. a pushing block, 16. a pawl, 17. an inclined plane, 18. a rotating shaft, 19. a gear shaft, 20. a rotating handle, 21. a clamping part, 22. a connecting rod and 23. an abutting part.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the utility model relates to a lathe fixture for processing bearing, which comprises a chuck 1, an outer clamping block 2 and an inner clamping tool 3, the surface of the chuck is provided with a plurality of radial chutes 4, a plurality of outer clamping blocks are respectively and slidably mounted in the chutes, one end of the outer clamping block is provided with a plurality of tooth-shaped grooves 5, the inside of the chuck is rotatably connected with a turntable 6, one side of the turntable is provided with a convex screw thread 7, the screw thread is inserted into the tooth-shaped grooves, the other side of the turntable is fixedly provided with a driven gear 8, the driven gear is meshed with a driving gear 9, the inner clamping tool comprises a connecting ring 10, an inner clamping block 11 and a knob 12, a plurality of inner clamping blocks are uniformly distributed on the connecting ring, the inner clamping blocks pass through holes on the connecting ring, a spring 13 is arranged between the inner clamping block and the connecting ring, the spring pushes the inner clamping block to move towards the inside of the connecting ring, the knob is rotatably connected with the connecting ring, the knob is provided with a ratchet 14 and a push block 15, the connecting ring is provided with a pawl 16, the pawl is abutted to the ratchet wheel, the push blocks are uniformly distributed on the knob, the push blocks are provided with inclined surfaces 17, and the inclined surfaces of the push blocks are abutted to the inner clamping block.

The working principle of the embodiment is as follows: the raw materials of the inner ring or the outer ring of the bearing are placed on the chuck, the driving gear is rotated, the driving gear drives the driven gear and the rotary table to rotate, and when the rotary table rotates, the outer clamping blocks are pushed by the threads to move along the sliding grooves, so that the plurality of outer clamping blocks clamp the outer side of the raw materials together. The inner clamp is placed in an inner hole of the raw material, the knob is rotated, and the knob intelligently rotates towards one direction due to the limitation of the ratchet wheel and the pawl. The knob rotates to drive the push block to rotate, and the push block pushes the inner clamping block to move outwards through the inclined plane, so that the inner clamping block is abutted to the inner hole of the raw material. The annular raw materials are clamped and fixed through the outer clamping block and the inner clamping block, so that the annular raw materials are prevented from being stressed and deformed in the machining process to influence the machining precision.

According to the above embodiment, preferably, the turntable is centrally provided with a rotating shaft 18, which is connected to the chuck via a bearing.

According to the above embodiment, the drive and driven gears are preferably bevel gears, the drive gear being fixedly connected to a gear shaft 19 which extends out of the chuck and is connected to a shank 20.

According to the above embodiment, preferably, the inner clamping block includes the clamping portion 21, the connecting rod 22 and the abutting portion 23, the clamping portion is located outside the connecting ring, the connecting rod passes through the through hole of the connecting ring, the abutting portion is located inside the connecting ring, the abutting portion is provided with the inclined surface matched with the pushing block, the spring is sleeved outside the connecting rod, and two ends of the spring are respectively connected with the connecting ring and the abutting portion.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a turning attachment of processing bearing which characterized in that: comprises a chuck, an outer fixture block and an inner fixture, wherein the surface of the chuck is provided with a plurality of radial sliding chutes, the outer fixture blocks are respectively arranged in the sliding chutes in a sliding way, one end of the outer clamping block is provided with a plurality of tooth-shaped grooves, the inside of the chuck is rotationally connected with a rotary table, one side of the rotary table is provided with a convex thread, the thread is inserted into the tooth-shaped grooves, the fixed driven gear that is equipped with of another side of carousel, driven gear and driving gear meshing, interior fixture includes the go-between, interior fixture block and knob, the even distribution of a plurality of interior fixture blocks is on the go-between, interior fixture block passes the through-hole on the go-between, be equipped with the spring between interior fixture block and the go-between, fixture block moves to the go-between inside in the spring promotes, the knob rotates with the go-between to be connected, the knob is equipped with ratchet and ejector pad, the go-between is equipped with the pawl, pawl and ratchet butt, the even distribution of a plurality of ejector pads is on the knob, the ejector pad is equipped with the inclined plane, the inclined plane and the interior fixture pad butt of ejector pad.

2. The turning attachment of claim 1, wherein: the center of the turntable is provided with a rotating shaft, and the rotating shaft is connected with the chuck through a bearing.

3. The turning attachment of claim 1, wherein: the driving gear and the driven gear are bevel gears, the driving gear is fixedly connected with a gear shaft, and the gear shaft extends out of the chuck and is connected with the rotating handle.

4. The turning attachment of claim 1, wherein: the inner clamping block comprises a clamping part, a connecting rod and a butting part, the clamping part is positioned outside the connecting ring, the connecting rod penetrates through a through hole of the connecting ring, the butting part is positioned inside the connecting ring, the butting part is provided with an inclined plane matched with the push block, the spring sleeve is arranged outside the connecting rod, and the two ends of the spring are respectively connected with the connecting ring and the butting part.