CN212398905U

CN212398905U - Clamping structure for numerical control machine tool

Info

Publication number: CN212398905U
Application number: CN202021730021.6U
Authority: CN
Inventors: 李智; 吴志强; 肖琰
Original assignee: Neway Cnc Equipment Suzhou Co ltd
Current assignee: Neway Cnc Equipment Suzhou Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-01-26
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a clamping structure for digit control machine tool, which comprises a housin, anchor clamps, transition dish and push structure, transition dish fixed mounting is in the casing, anchor clamps are installed in the transition dish, push structure movable mounting is in the transition dish, push structure is located between casing and the anchor clamps, push structure is equipped with the conical surface, anchor clamps include a plurality of chucks, each chuck is equipped with the pressure face, press face and conical surface contact, push structure axial displacement makes the conical surface conflict press the face and make the chuck fold, through the above-mentioned design, when the chuck presss from both sides tight work piece, only need promote push structure, push structure axial displacement, the pressure face of conical surface conflict chuck, make the chuck fold, press from both sides tight work piece, in the whole clamping process, anchor clamps do not produce axial displacement, anchor clamps do not produce undulantly with.

Description

Clamping structure for numerical control machine tool

Technical Field

The utility model relates to an anchor clamps especially relate to a clamping structure for digit control machine tool.

Background

The clamp is used for fixing a processing object in a mechanical manufacturing process to enable the processing object to occupy a correct position so as to receive construction or detection. When a workpiece is machined on a machine tool, the workpiece needs to be assembled (positioned) and firmly clamped (clamped) before machining in order to enable the surface of the workpiece to meet the technical requirements of the size, the geometric shape, the mutual position precision with other surfaces and the like specified in the drawing.

The chuck of the existing clamp is fixed on a moving part, a workpiece is positioned on the chuck, and after the chuck clamps the workpiece, the chuck and the workpiece integrally move axially, so that the fluctuation of the total length size after processing is large.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a clamping structure for a numerical control machine tool, which has no axial movement of a chuck in the process of clamping a workpiece by the chuck.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the utility model provides a clamping structure for digit control machine tool, includes casing, anchor clamps, transition dish and pushing structure, transition dish fixed mounting in the casing, anchor clamps install in transition dish, pushing structure movable mounting in transition dish, pushing structure is located the casing reaches between the anchor clamps, pushing structure is equipped with the conical surface, anchor clamps include a plurality of chucks, each the chuck is equipped with the pressure face, the pressure face with conical surface contact, pushing structure axial displacement makes the conical surface is contradicted, the pressure face makes the chuck folds.

Furthermore, the pushing structure comprises a pushing sleeve and a taper sleeve, the pushing sleeve is fixedly connected with the taper sleeve, and the pushing sleeve is coaxial with the taper sleeve.

Furthermore, the taper sleeve is located between the shell and the clamp, the conical surface is arranged at the end part of the taper sleeve, and the taper sleeve is coaxial with the clamp.

Further, the clamping structure for the numerical control machine tool further comprises a first jackscrew, the shell is provided with a threaded hole, and the first jackscrew is installed in the threaded hole and is matched with the taper sleeve to prevent circumferential rotation of the taper sleeve.

Further, the axis of the first jackscrew is perpendicular to the axis of the taper sleeve.

Further, the casing includes connection pad, main part and first fastener, the transition dish includes the stiff end, the stiff end is located the connection pad reaches between the main part, first fastener passes the main part reaches the stiff end with the connection pad cooperation makes the stiff end is fixed in the connection pad reaches between the main part.

Further, the transition dish includes the arch, anchor clamps include the installation department, the arch is equipped with the external screw thread, the installation department is equipped with the internal thread, the installation department with protruding threaded connection.

Further, the bulge is cylindrical, and the section of the mounting part is circular.

Further, the clamping structure for the numerical control machine tool further comprises a second jackscrew, the second jackscrew is installed on the shell and penetrates through the pushing structure and the installation part to prevent collision of the fixture circumferential rotation.

Further, the axis of the second jackscrew is perpendicular to the axis of the clamp.

Compared with the prior art, the utility model discloses clamping structure's for digit control machine tool transition dish fixed mounting is in the casing, anchor clamps are installed in the transition dish, pushing structure movable mounting is in the transition dish, pushing structure is located between casing and the anchor clamps, pushing structure is equipped with the conical surface, anchor clamps include a plurality of chucks, each chuck is equipped with the pressure face, the pressure face contacts with the conical surface, pushing structure axial displacement makes the conical surface conflict pressure face make the chuck fold, through the above-mentioned design, when the chuck presss from both sides tight work piece, only need promote pushing structure, pushing structure axial displacement, the pressure face of conical surface conflict chuck, make the chuck fold, press from both sides tight work piece, in the whole clamping process, anchor clamps do not produce axial displacement, anchor clamps do not produce undu.

Drawings

Fig. 1 is a cross-sectional view of the clamping structure for a numerical control machine tool of the present invention;

fig. 2 is a sectional view showing a state in which the clamping structure for the numerical control machine tool of fig. 1 is used;

fig. 3 is another sectional view illustrating a use state of the clamping structure for the numerical control machine tool of fig. 1.

In the figure: 10. a housing; 11. a connecting disc; 12. a main body; 120. a threaded hole; 13. a first fastener; 20. a transition disk; 21. a fixed end; 22. a protrusion; 30. a pushing structure; 31. pushing and pulling the sleeve; 32. a taper sleeve; 320. a conical surface; 33. a second fastener; 40. a clamp; 41. an installation part; 42. a chuck; 420. a pressed surface; 43. a clamping portion; 50. a first jackscrew; 60. a second jackscrew; 200. a workpiece; 300. and (4) a tip.

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a clamping structure for a numerical control machine according to the present invention includes a housing 10, a transition plate 20, a pushing structure 30, a fixture 40, a first screw 50, and a second screw 60.

The housing 10 includes a connection plate 11, a body 12, and a first fastening member 13. The connecting disc 11 is fixed to the machine tool spindle. The first fastener 13 is a socket head cap screw. The body 12 is provided with a threaded bore 120.

The transition disc 20 comprises a fixed end 21 and a protrusion 22. The projection 22 extends from the fixed end 21, and the projection 22 has a cylindrical shape. The fixing end 21 is provided with a through hole.

The pushing structure 30 includes a push-pull sleeve 31, a taper sleeve 32, and a second fastener 33. The end of the cone sleeve 32 is provided with a conical surface 320. The second fastener 33 is a socket head cap screw.

The jig 40 includes a mounting portion 41 and a plurality of collets 42. A plurality of collets 42 extend from the mounting portion 41. A gap exists between two adjacent collets 42. A plurality of collets 42 form a gripping portion 43 therebetween. Each collet 42 is provided with a pressure receiving surface 420. The compression surface 420 is tapered, and the taper of the compression surface 420 is matched with the taper surface 320.

The first jackscrew 50 and the second jackscrew 60 are both provided with external threads.

When assembling the clamping structure for the numerical control machine tool, the taper sleeve 32 is sleeved on the clamp 40, the mounting portion 41 of the clamp 40 is provided with an internal thread, the protrusion 22 is provided with an external thread, and the internal thread of the mounting portion 41 is matched with the external thread of the protrusion 22, so that the mounting portion 41 is fixed on the protrusion 22. The push-pull sleeve 31 is inserted into the transition disc 20, and the second fastening member 33 is mounted on the push-pull sleeve 31 and is matched with the taper sleeve 32, so that the push-pull sleeve 31 and the taper sleeve 32 are fixedly connected to form the push structure 30. The pushing structure 30 is now movably mounted to the transition tray 20. The fixed end 21 of the transition disc 20 is located between the connection disc 11 and the main body 12. The first fastening member 13 is mounted to the body 12 and fitted to the connection plate 11 through the through hole of the fixing end 21 to fixedly connect the connection plate 11, the transition plate 20 and the body 12. The lands 11 and the body 12 are positioned at the outermost layer at this time to form the case 10. The first jackscrew 50 is mounted to a threaded hole 120 of the body 12. The first jackscrew 50 is rotated relative to the threaded bore 120 and moved downward until it extends into a groove in the drogue 32, preventing circumferential movement of the drogue 32. The second jackscrew 60 is mounted to the threaded bore 120 of the body 12. The second jackscrew 60 rotates and moves upward relative to the threaded hole 120, passes through the taper sleeve 32 and abuts against the mounting portion 41 of the fixture 40, and prevents the fixture 40 from moving circumferentially.

At this time, the jig 40, the taper sleeve 32, and the main body 12 are coaxial. The drogue 32 is located between the clamp 40 and the body 12. The axis of the first jackscrew 50 is perpendicular to the axis of the drogue 32. The axis of the second jack screw 60 is perpendicular to the axis of the jig 40.

When the clamping structure for the numerical control machine tool is used, one end of the workpiece 200 is mounted to the clamping portion 43 of the jig 40, and the other end abuts against the center 300. An external force is applied to the push-pull sleeve 31, the push-pull sleeve 31 drives the taper sleeve 32 to move axially, and the tapered surface 320 of the taper sleeve 32 presses the pressure receiving surface 420 of the chuck 42, so that the chuck 42 clamps the workpiece 200. In the whole clamping process, the clamp 40 does not move axially, and the overall length dimension of the clamp 40 and the workpiece 200 after machining does not fluctuate.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, all according to the equivalent modifications and evolutions of the present invention, which are made to the above embodiments by the essential technology, and all belong to the protection scope of the present invention.

Claims

1. The utility model provides a clamping structure for digit control machine tool, includes casing and anchor clamps, its characterized in that: clamping structure for digit control machine tool still includes transition dish and pushing structure, transition dish fixed mounting in the casing, anchor clamps are installed in transition dish, pushing structure movable mounting in transition dish, pushing structure is located the casing reaches between the anchor clamps, pushing structure is equipped with the conical surface, anchor clamps include a plurality of chucks, each the chuck is equipped with the pressure face, the pressure face with conical surface contact, pushing structure axial displacement makes the conical surface is contradicted the pressure face makes the chuck folds.

2. The clamping structure for the numerical control machine tool according to claim 1, wherein: the pushing structure comprises a pushing sleeve and a taper sleeve, the pushing sleeve is fixedly connected with the taper sleeve, and the pushing sleeve is coaxial with the taper sleeve.

3. The clamping structure for the numerical control machine tool according to claim 2, wherein: the taper sleeve is located between the shell and the clamp, the conical surface is arranged at the end part of the taper sleeve, and the taper sleeve is coaxial with the clamp.

4. The clamping structure for the numerical control machine tool according to claim 2, wherein: the clamping structure for the numerical control machine tool further comprises a first jackscrew, the shell is provided with a threaded hole, and the first jackscrew is installed in the threaded hole and is matched with the taper sleeve to prevent circumferential rotation of the taper sleeve.

5. The clamping structure for the numerical control machine tool according to claim 4, wherein: the axis of the first jackscrew is perpendicular to the axis of the taper sleeve.

6. The clamping structure for the numerical control machine tool according to claim 1, wherein: the casing includes connection pad, main part and first fastener, the transition dish includes the stiff end, the stiff end is located the connection pad reaches between the main part, first fastener passes the main part reaches the stiff end with the connection pad cooperation makes the stiff end is fixed in the connection pad reaches between the main part.

7. The clamping structure for the numerical control machine tool according to claim 1, wherein: the transition dish is including protruding, anchor clamps include the installation department, the arch is equipped with the external screw thread, the installation department is equipped with the internal thread, the installation department with protruding threaded connection.

8. The clamping structure for the numerical control machine tool according to claim 7, wherein: the bulge is cylindrical, and the cross-section of installation department is the ring shape.

9. The clamping structure for the numerical control machine tool according to claim 7, wherein: the clamping structure for the numerical control machine tool further comprises a second jackscrew, wherein the second jackscrew is installed in the shell and penetrates through the pushing structure and the installation part to prevent collision of the fixture in the circumferential direction.

10. The clamping structure for the numerical control machine tool according to claim 9, wherein: the axis of the second jackscrew is perpendicular to the axis of the clamp.