CN214134932U

CN214134932U - Precise collet chuck for clamping numerical control machine tool

Info

Publication number: CN214134932U
Application number: CN202023335557.0U
Authority: CN
Inventors: 孙余廷
Original assignee: Suzhou Shiyu Precision Technology Co ltd
Current assignee: Suzhou Shiyu Precision Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-07
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an accurate collet chuck for digit control machine tool centre gripping, including the bull stick, the solid fixed ring of top outer wall fixedly connected with of bull stick, and solid fixed ring's bottom fixedly connected with fixture block to solid fixed ring's bottom fixed mounting has the card strip, and the outer wall removal of card strip is connected with the inner tube moreover, and the draw-in groove has been seted up to the inner wall of inner tube simultaneously, the shifting chute has been seted up on the right side of inner tube. This a precision collet chuck for digit control machine tool centre gripping, when carrying out the fixed time of drill bit, at first the bull stick that will have the drill bit inserts the inside of inner tube, the fixed slot that the urceolus was advanced to the post card will be removed inside through connecting spring's elasticity, hold the internal thread section of thick bamboo and twist in the inside of bearing and move, and then advance the preformed hole inside of bull stick with the screw thread post card, thereby made things convenient for the firm clamp of carrying out drill bit and work piece to press from both sides tight processing, traditional bolt fastening's mode has been avoided, and then avoided producing the not hard up landing condition of work piece under the high pivoted condition, thereby the normal use of digit control machine tool has been guaranteed.

Description

Precise collet chuck for clamping numerical control machine tool

Technical Field

The utility model relates to an accurate collet chuck technical field specifically is an accurate collet chuck for digit control machine tool centre gripping.

Background

Collet chuck is a locking device for holding tool or workpiece, which is commonly used in milling and drilling machines and machining centers, and in the use of numerically controlled machine tools, precision collet chucks are commonly used to clamp drill bits, tools or workpieces, but the existing precision collet chucks have certain defects, such as:

1. the existing precise collet chuck is inconvenient to be stably clamped, and when the precise collet chuck is used for fixing a drill bit cutter and a workpiece, the conventional precise collet chuck is fixed by adopting a bolt fixing mode after being inserted, so that the workpiece is loosened and slides under the condition of high rotation, and the normal use of a numerical control machine tool is influenced.

2. The current precision collet chuck is inconvenient to dismantle the change to the drill bit, and when carrying out the use of digit control machine tool drilling, use precision collet chuck to carry out the fixed of drill bit usually, nevertheless precision collet chuck commonly used is owing to adopt the bolt fastening when carrying out the fixed of drill bit, and then leads to having increased the operation degree of difficulty when changing the drill bit, needs to use specialized tool to dismantle the change to lead to the inconvenient change of drill bit.

Aiming at the problems, innovative design is urgently needed on the basis of the original precise collet chuck structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate collet chuck for digit control machine tool centre gripping to the inconvenient tight processing of clamp that stabilizes that provides in solving above-mentioned background art, and the inconvenient problem of changing of dismantling the tool bit.

In order to achieve the above object, the utility model provides a following technical scheme: a precise collet chuck for clamping a numerical control machine tool comprises a rotating rod, a fixing ring is fixedly connected with the outer wall of the top of the rotating rod, a clamping block is fixedly connected with the bottom of the fixing ring, and the bottom of the fixed ring is fixedly provided with a clamping strip, the outer wall of the clamping strip is movably connected with an inner cylinder, meanwhile, the inner wall of the inner cylinder is provided with a clamping groove, the right side of the inner cylinder is provided with a moving groove, the inner wall of the moving groove is fixedly provided with a connecting spring, the right end of the connecting spring is fixedly connected with a movable column, the inner part of the right side of the movable column is fixedly connected with a brace, the outer wall of the left side of the moving column is connected with an outer cylinder in a clamping way, the right side of the top of the outer cylinder is provided with a fixed groove, the right side of the bottom of the outer cylinder is fixedly connected with a connecting block, a bearing is fixedly arranged inside the top of the connecting block, the inner wall fixed connection of bearing has an internal thread section of thick bamboo, and the left side inner wall threaded connection of an internal thread section of thick bamboo has the screw thread post.

Preferably, the fixing ring is connected with the inner cylinder in a clamping manner through a clamping block, and the outer wall of the bottom of the clamping block is connected with the inner wall of the top of the inner cylinder in a clamping manner.

Preferably, the clamping strip and the clamping groove form a moving structure, and the outer wall of the clamping strip is attached to the inner wall of the clamping groove.

Preferably, the movable column is elastically connected with the movable groove through a connecting spring, and the left end of the connecting spring is fixedly connected with the inner wall of the left side of the movable groove.

Preferably, the inner side of the connecting block is in an arc-shaped structure in a plan view, and the inner side of the connecting block is fixedly connected with the outer wall of the outer cylinder.

Preferably, the bearings are symmetrically arranged on two sides of the outer portion of the outer cylinder, and the inner threaded cylinder is rotatably connected with the threaded column through the bearings.

Compared with the prior art, the beneficial effects of the utility model are that: the precision collet chuck is used for clamping the numerical control machine tool;

1. the drill bit fixing device is provided with a moving column and a threaded column, when a drill bit is fixed, a rotating rod with the drill bit is inserted into an inner cylinder, the moving column is clamped into a fixing groove of an outer cylinder through the elasticity of a connecting spring, an internal thread cylinder is held by a hand to be screwed in a bearing, and then the threaded column is clamped into a reserved hole of the rotating rod, so that the drill bit and a workpiece are stably clamped, a traditional bolt fixing mode is avoided, the workpiece is prevented from loosening and sliding under the condition of high rotation, and the normal use of a numerical control machine tool is ensured;

2. be provided with bearing and an internal thread section of thick bamboo, when carrying out the change of drill bit, twist an internal thread section of thick bamboo in the bearing is inside, and then twist out the screw thread post from the inside of bull stick, will remove the post again and shift out inside the fixed slot through the elasticity of connecting spring will remove the post to shift out the bull stick from the inside of inner tube, thereby made things convenient for the dismantlement of drill bit to change, and reduced the operation degree of difficulty, need not use specialized tool to dismantle the change, thereby made things convenient for the change of drill bit and work piece.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front cross-section structure of the inner cylinder and the outer cylinder of the present invention;

FIG. 3 is a schematic view of the forward cross-section structure of the movable column and the fixture block of the present invention;

fig. 4 is the utility model discloses a screw thread post and an internal thread section of thick bamboo are cut open structure schematic diagram down.

In the figure: 1. a rotating rod; 2. a fixing ring; 3. a clamping block; 4. clamping the strip; 5. an inner barrel; 6. a card slot; 7. a moving groove; 8. a connecting spring; 9. moving the column; 10. bracing; 11. an outer cylinder; 12. fixing grooves; 13. connecting blocks; 14. a bearing; 15. an internal threaded barrel; 16. a threaded post.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a precise collet chuck for clamping a numerical control machine tool comprises a rotating rod 1, a fixing ring 2, a clamping block 3, a clamping strip 4, an inner cylinder 5, a clamping groove 6, a moving groove 7, a connecting spring 8, a moving column 9, a brace 10, an outer cylinder 11, a fixing groove 12, a connecting block 13, a bearing 14, an inner screw thread cylinder 15 and a screw thread column 16, wherein the fixing ring 2 is fixedly connected to the outer wall of the top of the rotating rod 1, the clamping block 3 is fixedly connected to the bottom of the fixing ring 2, the clamping strip 4 is fixedly installed at the bottom of the fixing ring 2, the outer wall of the clamping strip 4 is movably connected with the inner cylinder 5, the clamping groove 6 is formed in the inner wall of the inner cylinder 5, the moving groove 7 is formed in the right side of the inner cylinder 5, the connecting spring 8 is fixedly installed on the inner wall of the moving groove 7, the moving column 9 is fixedly connected to the right end of the connecting spring 8, the brace 10 is fixedly connected to the inside of the right side of the moving column 9, the outer wall of the moving column 9 is clamped with the outer cylinder 11, and fixed slot 12 has been seted up on the top right side of urceolus 11 to the bottom right side fixedly connected with connecting block 13 of urceolus 11, the inside fixed mounting in top of connecting block 13 has bearing 14 moreover, the inner wall fixed connection of bearing 14 has an internal thread section of thick bamboo 15, and the left side inner wall threaded connection of an internal thread section of thick bamboo 15 has screw thread post 16.

The fixing ring 2 is connected with the inner cylinder 5 in a clamping manner through the fixture block 3, the outer wall of the bottom of the fixture block 3 is connected with the inner wall of the top of the inner cylinder 5 in a clamping manner, and the fixture block 3 is clamped on the inner wall of the top of the inner cylinder 5, so that the rotating rod 1 is conveniently fixed with the inner cylinder 5 through the fixing ring 2;

the clamping strip 4 and the clamping groove 6 form a moving structure, the outer wall of the clamping strip 4 is attached to the inner wall of the clamping groove 6, the clamping strip 4 moves in the clamping groove 6, and the rotating rod 1 is conveniently clamped into the inner cylinder 5;

the movable column 9 is elastically connected with the movable groove 7 through the connecting spring 8, the left end of the connecting spring 8 is fixedly connected with the inner wall of the left side of the movable groove 7, and the connecting spring 8 is arranged to facilitate the movement of the movable column 9, so that the inner cylinder 5 and the outer cylinder 11 are conveniently fixed;

the inner side of the connecting block 13 is in an arc-shaped structure when viewed from above, the inner side of the connecting block 13 is fixedly connected with the outer wall of the outer cylinder 11, and the arrangement of the connecting block 13 facilitates the installation of the bearing 14;

the bearings 14 are symmetrically arranged on two sides of the outer barrel 11, the internal thread barrel 15 is rotatably connected with the thread column 16 through the bearings 14, and the rotation of the internal thread barrel 15 and the movement of the thread column 16 are facilitated due to the arrangement of the bearings 14.

The working principle is as follows: when the precision collet chuck for clamping a numerical control machine tool is used, according to fig. 1, 2 and 4, when a drill bit is fixed, a rotating rod 1 with the drill bit is firstly inserted into an inner cylinder 5, a clamping strip 4 outside the rotating rod 1 moves in a clamping groove 6 of the inner cylinder 5 while the rotating rod is inserted, a fixing ring 2 outside the rotating rod 1 is clamped into the top of the inner cylinder 5 through a clamping block 3, the inner cylinder 5 is inserted into an outer cylinder 11 after clamping, a moving column 9 is pulled outwards in a moving groove 7 through a bracing strip 10, the moving column 9 rebounds inwards through the elasticity of an external connecting spring 8 after the inner cylinder 5 is placed, the moving column 9 is clamped into a fixing groove 12 of the outer cylinder 11, so that the top of the inner cylinder 5 and the top of the outer cylinder 11 are fixed, a hand is held by the inner thread cylinder 15 to be screwed in a bearing 14, and a thread column 16 is clamped into a reserved hole of the rotating rod 1, further fixing the rotating rod 1, the inner cylinder 5 and the outer cylinder 11;

according to fig. 1 and 3, when the bit of the numerical control machine tool is replaced, the internal thread cylinder 15 is screwed in the bearing 14, the thread column 16 is further screwed out of the rotating rod 1, the moving column 9 is moved out of the fixing groove 12 through the elastic force of the connecting spring 8, the rotating rod 1 is moved out of the inner cylinder 5, and the bit is replaced conveniently.

Those not described in detail in this specification are within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a precision collet chuck for digit control machine tool centre gripping, includes bull stick (1), its characterized in that: the outer wall of the top of the rotating rod (1) is fixedly connected with a fixing ring (2), the bottom of the fixing ring (2) is fixedly connected with a clamping block (3), a clamping strip (4) is fixedly installed at the bottom of the fixing ring (2), the outer wall of the clamping strip (4) is movably connected with an inner cylinder (5), a clamping groove (6) is formed in the inner wall of the inner cylinder (5), a moving groove (7) is formed in the right side of the inner cylinder (5), a connecting spring (8) is fixedly installed on the inner wall of the moving groove (7), a moving column (9) is fixedly connected with the right end of the connecting spring (8), a brace (10) is fixedly connected with the inside of the right side of the moving column (9), the outer wall of the left side of the moving column (9) is connected with an outer cylinder (11) in a clamping manner, a fixing groove (12) is formed in the right side of the top of the outer cylinder (11), and a connecting block (13) is fixedly connected with the right side of the bottom of the outer cylinder (11), and the inside fixed mounting in top of connecting block (13) has bearing (14), the inner wall fixed connection of bearing (14) has an internal thread section of thick bamboo (15), and the left side inner wall threaded connection of an internal thread section of thick bamboo (15) has screw thread post (16).

2. The precision collet for numerically controlled machine tool clamping as claimed in claim 1, wherein: the fixing ring (2) is connected with the inner cylinder (5) in a clamping manner through the fixture block (3), and the outer wall of the bottom of the fixture block (3) is connected with the inner wall of the top of the inner cylinder (5) in a clamping manner.

3. The precision collet for numerically controlled machine tool clamping as claimed in claim 1, wherein: the clamping strip (4) and the clamping groove (6) form a moving structure, and the outer wall of the clamping strip (4) is attached to the inner wall of the clamping groove (6).

4. The precision collet for numerically controlled machine tool clamping as claimed in claim 1, wherein: the movable column (9) is elastically connected with the movable groove (7) through a connecting spring (8), and the left end of the connecting spring (8) is fixedly connected with the inner wall of the left side of the movable groove (7).

5. The precision collet for numerically controlled machine tool clamping as claimed in claim 1, wherein: the inner side of the connecting block (13) is in an arc-shaped structure in a plan view, and the inner side of the connecting block (13) is fixedly connected with the outer wall of the outer cylinder (11).

6. The precision collet for numerically controlled machine tool clamping as claimed in claim 1, wherein: the bearings (14) are symmetrically arranged on two sides of the outer portion of the outer barrel (11), and the inner thread barrel (15) is rotatably connected with the thread column (16) through the bearings (14).