CN212945864U

CN212945864U - Gear hobbing machine chuck base of gear

Info

Publication number: CN212945864U
Application number: CN202021609240.9U
Authority: CN
Inventors: 吴宏; 吴伟仕
Original assignee: Zhejiang Barry Transmission Technology Co ltd
Current assignee: Zhejiang Barry Transmission Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-04-13
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses a gear hobbing machine chuck seat of a gear, which comprises a chuck seat, a cavity arranged in the chuck seat, a chuck mounting sleeve arranged on the chuck seat, a spring chuck, a support frame matched with the spring chuck, a first elastic element sleeved on the support frame, a rotating shaft arranged on the chuck seat, a rotating disc eccentrically arranged on the rotating shaft, a rotation stopping device for limiting the rotation of the rotating shaft and a limiting device for limiting the rotation of the rotating disc; when the locking device is locked, the rotating shaft is rotated to drive the rotating disc, and the first elastic piece rebounds to pull the spring chuck, so that the spring chuck is contracted and clamped; when the spring chuck is loosened, the rotating shaft needs to be rotated to drive the turntable to push the supporting frame upwards, so that the first spring is contracted, and the spring machine head is further pushed out.

Description

Gear hobbing machine chuck base of gear

Technical Field

The utility model belongs to the technical field of machine-building, especially, relate to a gear hobbing machine chuck seat of gear.

Background

The hobbing machine is a gear processing machine tool for processing straight teeth, helical teeth, herringbone-tooth cylindrical gears, worm gears and the like by using a hobbing cutter according to a generating method, belongs to a gear processing machine tool which is most widely applied, and can be used for cutting the straight teeth, the helical teeth cylindrical gears, the worm gears, chain wheels and the like on the hobbing machine, and the machine tool can also be used for processing various workpieces with special tooth shapes, such as splines and the like by using a specially-made hobbing cutter. When a gear hobbing machine is used for machining a workpiece, a cutter needs to be clamped and fixed firstly, and in the prior art, a clamping head is used for clamping the cutter by screwing a locking device in the gear machining process, so that the cutter can be screwed tightly only with great effort.

Patent publication No. CN103639745A discloses an eccentric collet chuck, which is connected with a collet chuck through a rotating shaft arranged on the side wall of the collet chuck and moving along the cavity of the collet chuck, and the collet chuck is driven to move up and down through the embedding of an eccentric block and a connecting block, so that the collet chuck is loosened or clamped. The eccentric block can also rotate when the rotating shaft of the structure rotates, the eccentric block and the connecting block are in an embedded structure, the structure limits the rotation of the eccentric block, the eccentric block cannot drive the connecting block to move up and down along the cavity of the clamp body, and meanwhile, the rotating shaft does not have a limiting mechanism, so that the collet chuck can easily release workpieces or props due to vibration generated when the machine tool works.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gear hobbing machine chuck seat for overcoming the defects of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a gear hobbing machine chuck base of a gear comprises a chuck base, a cavity arranged in the chuck base, a chuck mounting sleeve arranged on the chuck base, a spring chuck, a support frame matched with the spring chuck, a first elastic piece sleeved on the support frame, a rotating shaft arranged on the chuck base, a turntable eccentrically arranged on the rotating shaft, a rotation stopping device for limiting the rotation of the rotating shaft and a limiting device for limiting the rotation of the turntable; when the locking device is locked, the rotating shaft is rotated to drive the rotating disc, and the first elastic piece rebounds to pull the spring chuck, so that the spring chuck is contracted and clamped; when the spring chuck is loosened, the rotating shaft needs to be rotated to drive the turntable to push the supporting frame upwards, so that the first spring is contracted, and the spring machine head is further pushed out.

Preferably, the rotation stopping device comprises a plurality of mounting holes arranged on the rotating shaft, a second elastic piece arranged in the mounting holes, an ejector rod arranged on the end part of the second elastic piece, a first ball arranged on the end part of the ejector rod, and a first sleeve arranged on the chuck base, wherein the first sleeve is provided with a clamping groove matched with the first ball, a locking assembly and a safety assembly; the push rod is pushed by the second elastic piece, the first ball at the end of the push rod can be pushed into the clamping groove, a certain rotation stopping effect is achieved, and subsequent counter rotating shafts are convenient to lock.

Preferably, the locking assembly comprises a second sleeve arranged on the rotating shaft, a rotating handle arranged on the second sleeve, a locking rod arranged on the second sleeve, a locking hole arranged on the first sleeve, a protrusion arranged on the rotating shaft and a limiting sliding groove arranged on the inner wall of the second sleeve; when the rotating shaft needs to be rotated, the second sleeve can be moved, the locking rod is pulled out of the locking hole, and then the rotating handle is rotated; after the workpiece is locked, the locking rod can be inserted into the locking hole, so that the rotating shaft is locked and cannot rotate, and the rotating disc is locked.

Preferably, the safety assembly comprises a plurality of baffles arranged on the rotating shaft, a fixed plate arranged on the chuck seat, a sliding rod arranged on the fixed plate, a limiting plate arranged on the sliding rod and an elastic plate arranged on the baffles; the limiting plate is inserted between the baffles, so that the locking of the rotating shaft can be completed; the elastic plate is arranged, so that the limiting plate can be conveniently inserted between the two baffles, and the limiting plate can be prevented from automatically sliding down between the two baffles.

Preferably, the limiting device comprises a threaded hole formed in the chuck base, a screw matched with the threaded hole and a second ball arranged at the end of the screw, and the second ball can be in contact with the turntable.

Preferably, the chuck seat is provided with an observation hole, and the observation hole is right opposite to the turntable.

In conclusion, during locking, the rotating shaft is rotated to drive the rotating disc, and the first elastic piece rebounds to pull the spring chuck, so that the spring chuck is contracted and clamped; when the spring chuck is loosened, the rotating shaft needs to be rotated to drive the turntable to push the supporting frame upwards, so that the first spring is contracted, and the spring machine head is further pushed out.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a.

Fig. 4 is an enlarged view of fig. 2 at B.

Fig. 5 is a cross-sectional view of the present invention.

Detailed Description

As shown in fig. 1-5, a gear hobbing machine chuck base of a gear comprises a chuck base 1, a chuck mounting sleeve 2, a collet chuck 31, a support frame 32, a first elastic member 33, a rotating shaft 34, a turntable 35, a rotation stopping device and a limiting device, wherein the chuck base 1 is provided with a cavity; the chuck mounting sleeve 2 is fixed on the chuck seat and is provided with a hole; the spring chuck 31 is arranged in a hole of the chuck mounting sleeve in a penetrating way; the support frame 32 is screwed at the bottom of the spring chuck; the first elastic piece 33 is a spring which is sleeved on the support frame; the two ends of the rotating shaft 34 are respectively connected to the chuck seats in a rotating manner; the rotating disc 35 is eccentrically fixed on the rotating shaft, and when the rotating shaft is locked, the rotating disc is driven by rotating the rotating shaft, and the first elastic piece rebounds to pull the spring chuck, so that the spring chuck is contracted and clamped; when the spring chuck is loosened, the rotating shaft needs to be rotated to drive the turntable to push the supporting frame upwards, so that the first spring is contracted, and the spring machine head is further pushed out.

Specifically, the rotation stopping device comprises a mounting hole 41, a second elastic piece 42, a push rod 43, a first ball 44, a first sleeve 45, a second sleeve 46, a rotating handle 47, a locking rod 48, a protrusion 49, a limiting chute and a safety component, wherein the mounting hole 41 is uniformly arranged on the rotating shaft in a surrounding manner; the second elastic pieces 42 are springs which are respectively arranged in the mounting holes, and one ends of the second elastic pieces are fixed at the bottoms of the mounting holes; the ejector rod 43 is fixed on the end part of the second elastic piece; the first ball 44 is rotatably connected to the end part of the mandril; the first sleeve 45 is fixed on the chuck base and can just allow the rotating shaft to pass through, and a clamping groove for clamping a first ball is formed in the inner wall of the first sleeve; the second sleeve 46 is sleeved on the rotating shaft and can slide relative to the rotating shaft; the rotating handle 47 is fixed on the second sleeve; the locking rods 48 are uniformly fixed on the end part of the second sleeve; the locking hole is formed in the first sleeve and just allows the locking rod to be inserted; the bulge 49 is fixed on the outer wall of the rotating shaft; the limiting sliding groove is formed in the inner wall of the second sleeve and can be used for the protrusion to be clamped and slide, when the rotating shaft needs to be rotated, the second sleeve can be moved, the locking rod is pulled out of the locking hole, and then the rotating handle is rotated; after the workpiece is locked, the locking rod can be inserted into the locking hole, so that the rotating shaft is locked and cannot rotate, and the rotating disc is locked.

Specifically, the safety assembly comprises a baffle 51, a fixed plate 52, a sliding rod 53, a limiting plate 54 and an elastic plate 55, wherein the baffle 51 is uniformly fixed on the end part of the rotating shaft; the fixing plate 52 is fixed on the side wall of the chuck seat; the sliding rod 53 is fixed on the fixing plate; the limiting plate penetrates through the sliding rod and can slide up and down relative to the sliding rod; the elastic plate 55 can be made of rubber and is fixed on the baffles, and then the limiting plate is inserted between the baffles, so that the locking of the rotating shaft can be completed; the elastic plate is arranged, so that the limiting plate can be conveniently inserted between the two baffles, and the limiting plate can be prevented from automatically sliding down between the two baffles.

Specifically, the limiting device comprises a threaded hole, a screw rod 61, a second ball 62 and an observation hole 63, and the threaded hole is formed in the chuck base; the screw rod 61 is screwed in the threaded hole; the second ball 62 is rotatably connected to the end of the screw rod and can be contacted with the turntable; the observation hole 63 is formed in the side wall of the chuck base and is opposite to the turntable.

Claims

1. The utility model provides a gear hobbing machine chuck seat of gear which characterized in that: including the chuck seat (1), locate cavity in the chuck seat, locate chuck installation cover (2), collet chuck (31) on the chuck seat, with collet chuck complex support frame (32), cover are located first elastic component (33) on the support frame, locate pivot (34) on the chuck seat, eccentric locate epaxial carousel (35), restriction pivot pivoted ends the device and restricts carousel pivoted stop device.

2. The carrier for a gear hobbing machine for gears of claim 1, wherein: the rotation stopping device comprises a plurality of mounting holes (41) arranged on the rotating shaft, a second elastic piece (42) arranged in the mounting holes, an ejector rod (43) arranged on the end part of the second elastic piece, a first ball (44) arranged on the end part of the ejector rod, a locking assembly and a safety assembly, and a first sleeve (45) arranged on the chuck seat, wherein the first sleeve is provided with a clamping groove matched with the first ball.

3. The carrier for a gear hobbing machine for gears of claim 2, wherein: the locking assembly comprises a second sleeve (46) arranged on the rotating shaft, a rotating handle (47) arranged on the second sleeve, a locking rod (48) arranged on the second sleeve, a locking hole arranged on the first sleeve, a protrusion (49) arranged on the rotating shaft and a limiting sliding groove arranged on the inner wall of the second sleeve.

4. The carrier for a gear hobbing machine for gears of claim 2, wherein: the safety assembly comprises a plurality of baffles (51) arranged on the rotating shaft, a fixing plate (52) arranged on the chuck seat, a sliding rod (53) arranged on the fixing plate, a limiting plate (54) arranged on the sliding rod and an elastic plate (55) arranged on the baffles.

5. The carrier for a gear hobbing machine for gears of claim 1, wherein: the limiting device comprises a threaded hole formed in the chuck base, a screw (61) matched with the threaded hole and a second ball (62) arranged at the end of the screw, and the second ball can be in contact with the turntable.

6. The carrier for a gear hobbing machine for gears of claim 1, wherein: the chuck base (1) is provided with an observation hole (63) which is right opposite to the turntable.