CN215941609U

CN215941609U - Drill chuck for numerical control machine tool

Info

Publication number: CN215941609U
Application number: CN202122472926.9U
Authority: CN
Inventors: 高志强; 谭光恒; 田云麒
Original assignee: Harbin Yiou Technology Co ltd
Current assignee: Nantong Nuomai Cnc Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-03-04
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a drill chuck for a numerical control machine tool, which comprises a chuck body and a fixed seat, wherein the chuck body and the fixed seat are jointly and rotatably connected with a locking sleeve, the side wall of the chuck body is provided with a groove, the inner wall of the locking sleeve is in threaded connection with a threaded sleeve, the inner wall of the threaded sleeve is circumferentially welded with three first wedge blocks in an array mode, the three first wedge blocks are abutted against second wedge blocks, the second wedge blocks are all welded with clamping seats, the clamping seats are connected with a damping device, the damping device comprises a plurality of connecting rods, the connecting rods are welded on the side wall of the chuck body at equal intervals, and three partition plates are welded on the inner wall of the chuck body at equal intervals in the circumferential direction. According to the utility model, the structures of the first spring, the second spring and the like are arranged, so that the vibration of the external environment on the drilling tool is damped in the clamping process, the drilling tool is prevented from being damaged, and the service life of the drilling tool is prolonged.

Description

Drill chuck for numerical control machine tool

Technical Field

The utility model relates to the technical field of drill chuck bodies, in particular to a drill chuck for a numerical control machine tool.

Background

When a machine tool is machined, a drill chuck body is often required to clamp different drilling tools, such as a central drill, a drill bit, a reamer, a screw tap and the like, and the drill chuck body is a tool for realizing multi-station movement.

However, the existing drill chuck body cannot reduce the vibration of the external environment to the drilling tool in the drilling tool clamping process, the drilling tool is easy to damage, and the service life of the drill chuck body is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a drill chuck for a numerical control machine tool.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a drill chuck for digit control machine tool, includes chuck body and fixing base, the chuck body rotates jointly with the fixing base and is connected with the lock sleeve, the lateral wall of chuck body is seted up flutedly, the inner wall threaded connection of lock sleeve has the thread bush, the inner wall circumference array welding of thread bush has three first wedge, and is three the second wedge has been supported to first wedge homogeneous phase, the equal welding of second wedge has the holder, the holder is connected with damping device.

Preferably, the damping device comprises a plurality of connecting rods, the connecting rods are welded on the side wall of the chuck body at equal intervals, three partition plates are welded on the inner wall of the chuck body at equal intervals in the circumferential direction, the connecting rods penetrate through the plate walls of the corresponding partition plates respectively and stretch out outwards, a sliding plate is welded at one end, away from the clamping seat, of each connecting rod, a fixing plate is welded on the inner wall of the chuck body together with the partition plates, a first sliding groove is formed in the side wall of each sliding plate, the inner side walls of the first sliding groove and the chuck body are both in sliding connection with the sliding plate, a first spring is sleeved on each connecting rod, and the sliding plate is connected with a dual damping mechanism.

Preferably, the dual damping mechanism includes the second spring, the one end of second spring and the lateral wall welded fastening of sliding plate, the other end of second spring and the lateral wall welded fastening of chuck body, the sliding plate symmetry is rotated and is connected with two dwangs, two the other end of dwang all rotates and is connected with the sliding block, a plurality of second sliding tray has been seted up to the lateral wall of chuck body, the lateral wall welding of second sliding tray has the third spring, the other end of third spring and the lateral wall welded fastening of sliding block.

Preferably, the sliding block and second sliding tray sliding connection, the sliding block adopts metal material to make and forms, the fixing base runs through and has seted up the fixed orifices.

Preferably, one end of the first spring is welded and fixed with the clamping seat, and the other end of the first spring is welded and fixed with the side wall of the partition plate.

Preferably, the second wedge block and the thread bush are both connected with the side wall of the groove in a sliding mode, and the inner diameter of the first wedge block is gradually increased towards the direction away from the fixed seat.

Compared with the prior art, the utility model has the advantages that:

1. through setting up lock sleeve, thread bush and first wedge isotructure for through rotating the lock sleeve, the lock sleeve drives the thread bush and removes, thereby makes first wedge remove, through the counterbalance of first wedge and second wedge, makes the holder be close to and fixes the drilling tool, and the people of being convenient for use.

2. Through setting up the dwang, sliding block and third spring isotructure, when receiving external force vibrations after the clamping, the vibrations of production at first will extrude first spring, and drive the sliding plate through the connecting rod and remove, the sliding plate is when removing, will drive the dwang and rotate, the dwang will drive the sliding block and remove, thereby carry out the shock attenuation once more through second spring and third spring, make the shock attenuation effect preferred, the vibrations of avoiding producing carry out the harm to the device, increase the life of device.

Drawings

FIG. 1 is a schematic structural view of a drill chuck for a numerical control machine tool according to the present invention;

FIG. 2 is an enlarged schematic view of part A of a drill chuck for a numerically-controlled machine tool according to the present invention;

fig. 3 is a top view of a drill chuck for a numerical control machine tool according to the present invention.

In the figure: the clamping head comprises a clamping head body 1, a fixed seat 2, a locking sleeve 3, a groove 4, a first wedge block 5, a second wedge block 6, a clamping seat 7, a connecting rod 8, a sliding plate 9, a fixed plate 10, a first sliding groove 11, a first spring 12, a second spring 13, a rotating rod 14, a second sliding groove 15, a third spring 16, a sliding block 17, a fixed hole 18, a partition plate 19 and a thread sleeve 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a drill chuck for digit control machine tool, including chuck body 1 and fixing base 2, chuck body 1 rotates jointly with fixing base 2 and is connected with the lock sleeve 3, recess 4 has been seted up to the lateral wall of chuck body 1, the inner wall threaded connection of lock sleeve 3 has thread bush 20, the inner wall circumference array welding of thread bush 20 has three first wedge 5, three first wedge 5 homogeneous phase has supported second wedge 6, the equal welding of second wedge 6 has holder 7, holder 7 is connected with damping device, through rotating lock sleeve 3, lock sleeve 3 drives thread bush 20 and removes, thereby make first wedge 5 remove, through the counterbalance action of first wedge 5 with second wedge 6, make holder 7 be close to each other and fix the drilling tool, be convenient for people to use.

Damping device includes a plurality of connecting rods 8, a plurality of connecting rods 8 equidistant welding is at chuck body 1's lateral wall, 1 inner wall circumference equidistant welding of chuck body has three space bar 19, a plurality of connecting rods 8 run through respectively rather than corresponding space bar 19's bulkhead and outwards stretch out, the common welding of the one end that holder 7 was kept away from to a plurality of connecting rods 8 has sliding plate 9, space bar 19 has fixed plate 10 with chuck body 1's common welding of inner wall, first sliding tray 11 has been seted up to sliding plate 9's lateral wall, first sliding tray 11 all with chuck body 1's inside wall with sliding plate 9 sliding connection, connecting rod 8 covers is equipped with first spring 12, sliding plate 9 is connected with dual damper.

The dual damping mechanism comprises a second spring 13, one end of the second spring 13 is welded and fixed with the side wall of the sliding plate 9, the other end of the second spring 13 is welded and fixed with the side wall of the chuck body 1, the sliding plate 9 is symmetrically and rotatably connected with two rotating rods 14, the other ends of the two rotating rods 14 are both rotatably connected with sliding blocks 17, the side wall of the chuck body 1 is provided with a plurality of second sliding grooves 15, the side wall of each second sliding groove 15 is welded with a third spring 16, the other end of each third spring 16 is welded and fixed with the side wall of each sliding block 17, when the chuck is vibrated by being influenced by external force after being clamped, the generated vibration firstly extrudes the first spring 12 and drives the sliding plate 9 to move through the connecting rod 8, when the sliding plate 9 moves, the rotating rods 14 are driven to rotate, the rotating rods 14 drive the sliding blocks 17 to move, so that the second spring 13 and the third spring 16 damp again, the damping effect is better, the device is prevented from being damaged by the generated vibration, and the service life of the device is prolonged.

Sliding

block

17 and 15 sliding connection of second sliding tray, sliding block 17 adopt the metal material preparation to form, and fixing base 2 runs through and has seted up fixed orifices 18, the one end and the holder 7 welded fastening of first spring 12, the other end and space bar 19's lateral wall welded fastening, second wedge 6 and thread bush 20 all with groove 4's lateral wall sliding connection, the internal diameter of first wedge 5 is for increasing gradually in the direction of keeping away from fixing base 2.

In the utility model, by rotating the locking sleeve 3, the locking sleeve 3 drives the threaded sleeve 20 to move in the rotating process, so that the threaded sleeve 20 drives the first wedge-shaped block 5 to move, when the first wedge-shaped block 5 moves, the second wedge-shaped blocks 6 are close to each other under the action of the butting of the second wedge-shaped blocks 6, so that the second wedge-shaped blocks 6 drive the clamping bases 7 to close to each other to fix the drilling tool, in the working process, the vibration generated by the device firstly extrudes the first spring 12 and drives the sliding plate 9 to move through the connecting rod 8, when the sliding plate 9 moves, the second spring 13 is extruded and simultaneously drives the rotating rod 14 to rotate, the sliding plate 17 is driven to move through the rotation of the rotating rod 14, and under the action of the third spring 16, the damping effect is performed again, so that the damping effect is good, avoid the device to damage, increase the life of device.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a drill chuck for digit control machine tool, includes chuck body (1) and fixing base (2), its characterized in that, chuck body (1) rotates jointly with fixing base (2) and is connected with lock sleeve (3), the lateral wall of chuck body (1) is seted up flutedly (4), the inner wall threaded connection of lock sleeve (3) has thread bush (20), the inner wall circumference array welding of thread bush (20) has three first wedge (5), and is three first wedge (5) homogeneous phase has been supported second wedge (6), all welding of second wedge (6) has holder (7), holder (7) are connected with damping device.

2. The drill chuck for the numerical control machine tool as claimed in claim 1, wherein the damping device comprises a plurality of connecting rods (8), the connecting rods (8) are welded on the side wall of the chuck body (1) at equal intervals, three partition plates (19) are welded on the inner wall of the chuck body (1) at equal intervals in the circumferential direction, the connecting rods (8) respectively penetrate through the plate walls of the partition plates (19) corresponding to the connecting rods and extend outwards, a sliding plate (9) is welded on one end of each connecting rod (8) far away from the chuck base (7), a fixing plate (10) is welded on the partition plates (19) and the inner wall of the chuck body (1) together, a first sliding groove (11) is formed in the side wall of the sliding plate (9), and the inner side walls of the first sliding groove (11) and the chuck body (1) are both connected with the sliding plate (9) in a sliding manner, the connecting rod (8) is sleeved with a first spring (12), and the sliding plate (9) is connected with a double damping mechanism.

3. The drill chuck for the numerical control machine tool as claimed in claim 2, wherein the dual damping mechanism comprises a second spring (13), one end of the second spring (13) is welded and fixed to a side wall of the sliding plate (9), the other end of the second spring (13) is welded and fixed to a side wall of the chuck body (1), the sliding plate (9) is symmetrically and rotatably connected with two rotating rods (14), the other ends of the two rotating rods (14) are rotatably connected with sliding blocks (17), a plurality of second sliding grooves (15) are formed in the side wall of the chuck body (1), a third spring (16) is welded to the side wall of the second sliding groove (15), and the other end of the third spring (16) is welded and fixed to a side wall of the sliding blocks (17).

4. The drill chuck for the numerical control machine tool as claimed in claim 3, wherein the sliding block (17) is slidably connected with the second sliding groove (15), the sliding block (17) is made of metal material, and the fixing seat (2) is provided with a fixing hole (18) in a penetrating manner.

5. The drill chuck for the numerical control machine tool as claimed in claim 4, wherein one end of the first spring (12) is welded and fixed with the holder (7), and the other end is welded and fixed with the side wall of the spacing plate (19).

6. The drill chuck for the numerical control machine tool is characterized in that the second wedge block (6) and the threaded sleeve (20) are in sliding connection with the side wall of the groove (4), and the inner diameter of the first wedge block (5) is gradually increased towards the direction away from the fixed seat (2).