CN210132267U

CN210132267U - Special fixture for numerical control machining center

Info

Publication number: CN210132267U
Application number: CN201920085916.XU
Authority: CN
Inventors: 许世锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-03-10
Anticipated expiration: 2029-01-18

Abstract

Numerical control machining center special fixture, the on-line screen storage device comprises a base, top surface one side fixed mounting fixing base of base, the top surface fixed mounting annular plate of fixing base, the spout that the several is parallel to each other is seted up to the top surface opposite side of base, the outer end of spout all communicates with each other with the external world, the top surface opposite side of base is equipped with the sliding seat, the bottom surface fixed mounting several of sliding seat is parallel to each other's draw runner, the draw runner is located corresponding spout respectively and can be followed it and slide, the same annular plate of top surface fixed mounting of sliding seat, the central line collineation of annular plate just is on a parallel with the top surface of base, the several screw is seted up respectively to the periphery of annular plate, the screw all communicates. The utility model discloses can be according to the shape of work piece adjusting bolt respectively with fixed work piece, the work piece surface can be laminated completely under the effect of bolt to the arc of deformability to make and have very big frictional force between work piece and the arc, in order to prevent that the work piece from removing.

Description

Special fixture for numerical control machining center

Technical Field

The utility model belongs to the technical field of machining, specifically speaking are numerical control machining center special fixture.

Background

Machine tool holders are devices on machine tools for holding workpieces and guiding tools, and are common in numerical control machining. At present, when a workpiece with a long length is machined, particularly a long workpiece with an arc-shaped periphery, the workpiece cannot be effectively fixed by a conventional clamp, the workpiece may vibrate in the machining process, and the workpiece is possibly damaged, so that the manufacturing cost is increased, and the waste of resources is also caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a numerical control machining center special fixture for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

numerical control machining center special fixture, the on-line screen storage device comprises a base, top surface one side fixed mounting fixing base of base, the top surface fixed mounting annular plate of fixing base, the spout that the several is parallel to each other is seted up to the top surface opposite side of base, the outer end of spout all communicates with each other with the external world, the top surface opposite side of base is equipped with the sliding seat, the bottom surface fixed mounting several of sliding seat is parallel to each other's draw runner, the draw runner is located corresponding spout respectively and can be followed it and slide, the same annular plate of top surface fixed mounting of sliding seat, the central line collineation of annular plate is just on a parallel with the top surface of base, the several screw is seted up respectively to the periphery of annular plate, the screw all communicates with each other with inside the annular plate, screw thread installation bolt in the screw respectively, the inner of bolt is respectively through bearing installation arc, the concave surface of arc all faces the inside of the.

According to the special fixture for the numerical control machining center, the fixed seat and the movable seat are both of right-angle trapezoidal structures, and the trapezoidal surfaces of the fixed seat and the movable seat face obliquely upwards of the base.

According to the special fixture for the numerical control machining center, the sliding grooves are all dovetail grooves, and the sliding strips are all dovetail strips.

The special fixture for the numerical control machining center is characterized in that the limiting device is a first limiting strip, a strip-shaped groove is formed in the bottom surface of the movable seat, two ends of the strip-shaped groove are communicated with the outside, the first limiting strip is located in the strip-shaped groove and can vertically move along the strip-shaped groove, a through hole is formed in the top surface of the strip-shaped groove, the top surface of the first limiting strip is connected with the lower end of a screw rod through a bearing, a groove is formed in one side of the movable seat, a spiral ring is fixedly installed in the groove, a rectangular groove is formed in one side of the movable seat, the bottom surface of the rectangular groove is provided with the same through hole which is communicated with the inside of the groove, the central lines of the through hole, the screw rod and the spiral ring are collinear, the screw rod sequentially penetrates through the through hole and the spiral ring and is in threaded fit with the spiral ring, the upper end of the screw rod is located in the rectangular groove, the second limit strip can be in contact fit with the first limit strip.

According to the special fixture for the numerical control machining center, the first limiting strip and the second limiting strip are racks, and the two racks can be meshed with each other.

According to the special clamp for the numerical control machining center, at least three screw holes are formed in the periphery of the annular plate respectively, and the distance between every two adjacent screw holes is equal.

The utility model has the advantages that: the utility model is suitable for a work piece processing of arc surface, like camshaft etc, at first the position of workman's regulation sliding seat, the periphery of draw runner cooperates with the inner wall contact of the spout that corresponds respectively, spout and draw runner mutually support and can make the very stable horizontal migration of sliding seat, make the interval between the annular slab be less than the length of work piece, then the workman puts into the annular slab respectively with the work piece both ends, then the workman screws up the bolt in proper order, bolt and screw thread fit, when rotating the bolt, the bolt has the motion along its central line direction, make the bolt remove to the work piece direction, until the concave surface laminating work piece surface of arc, the arc chooses for use the elastic material that coefficient of friction is big, under the effect of the friction force between arc and work piece, realize the fixed to the work piece. The utility model discloses can be according to the shape of work piece adjusting bolt respectively with fixed work piece, the work piece surface can be laminated completely to the arc of deformability under the effect of bolt to make and have very big frictional force between work piece and the arc, in order to prevent that the work piece from removing, and the sliding seat can remove, this just makes the utility model discloses when processing longer work piece, can remove the middle part to the work piece with the sliding seat earlier, then the part that processing is located between sliding seat, the fixing base can alleviate the vibrations of work piece in the course of working, thereby improves the machining precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; fig. 3 is an enlarged view of the view from direction B of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A special clamp for a numerical control machining center comprises a base 1, a fixed seat 2 is fixedly installed on one side of the top surface of the base 1, a ring-shaped plate 3 is fixedly installed on the top surface of the fixed seat 2, a plurality of parallel sliding grooves 4 are formed in the other side of the top surface of the base 1, the outer ends of the sliding grooves 4 are communicated with the outside, a movable seat 5 is arranged on the other side of the top surface of the base 1, a plurality of parallel sliding strips 6 are fixedly installed on the bottom surface of the movable seat 5, the sliding strips 6 are respectively positioned in the corresponding sliding grooves 4 and can slide along the sliding grooves, the same ring-shaped plate 3 is fixedly installed on the top surface of the movable seat 5, the central lines of the ring-shaped plates 3 are collinear and parallel to the top surface of the base 1, a plurality of screw holes 7 are respectively formed in the periphery of the ring-shaped plate 3, the screw holes 7 are respectively communicated with the inside of the ring-shaped plate 3, bolts, a limiting device is arranged in the movable seat 5 and can limit the horizontal movement of the movable seat 5. The utility model is suitable for a work piece processing of arc surface, like camshaft etc, at first the workman adjusts the position of sliding seat 5, the periphery of draw runner 6 respectively with the inner wall contact cooperation of the spout 3 that corresponds, spout 3 and draw runner 6 mutually support and can make the very stable horizontal migration of sliding seat 5, make the interval between the annular slab 3 be less than the length of work piece, then the workman puts into annular slab 3 respectively with the work piece both ends, then the workman screws up bolt 8 in proper order,

bolt

8 and 7 screw thread fit, when rotating bolt 8, bolt 8 has the motion along its central line direction, make bolt 8 remove to the work piece direction, until the concave surface laminating work piece surface of arc 9, the elastic material that coefficient of friction is big is chooseed for use to arc 9, under the effect of friction between arc 9 and the work piece, the realization is fixed to the work piece. The utility model discloses can be according to the shape of work piece adjusting bolt 8 respectively with fixed work piece, work piece surface can be laminated completely to the arc 9 of deformability under bolt 8's effect to make and have very big frictional force between work piece and the arc 9, in order to prevent the work piece and remove, and sliding seat 5 can remove, this just makes the utility model discloses when processing longer work piece, can remove the middle part to the work piece with sliding seat 5 earlier, then processing is located the part between sliding seat 5, the fixing base 2, can alleviate work piece vibrations in the course of working, thereby improves the machining precision.

Specifically, as shown in fig. 1, the fixed seat 2 and the movable seat 5 in this embodiment are both of a right-angled trapezoid structure, and the trapezoid surfaces of the fixed seat 2 and the movable seat 5 face obliquely upward of the base 1. This structure can reduce fixing base 2, sliding seat 5's focus to be favorable to fixing base 2, the more stable removal of sliding seat 5.

Specifically, as shown in fig. 3, the sliding grooves 4 in this embodiment are all dovetail grooves, and the sliding strips 6 are all dovetail strips. The periphery of the sliding strip 6 is respectively in contact fit with the inner wall of the corresponding sliding groove 4, and the sliding strip 6 can be prevented from shaking by the structure, so that the sliding strip 6 is more stable to move.

Further, as shown in fig. 3, the limiting device described in this embodiment is a first limiting bar 10, a strip-shaped groove 11 is formed in a bottom surface of the movable seat 5, both ends of the strip-shaped groove 11 are communicated with the outside, the first limiting bar 10 is located in the strip-shaped groove 11 and can move vertically along the same, a through hole 12 is formed in a top surface of the strip-shaped groove 11, a top surface of the first limiting bar 10 is connected with a lower end of a screw 13 through a bearing, a groove 14 is formed in one side of the movable seat 5, a spiral ring 15 is fixedly installed in the groove 14, a rectangular groove 16 is formed in one side of the movable seat 5, the same through hole 12 is formed in a bottom surface of the rectangular groove 16, the through holes 12 are communicated with the inside of the groove 14, center lines of the through hole 12, the screw 13 and the spiral ring 15 are collinear, the screw 13 sequentially passes through the through hole 12 and the spiral ring 15, the screw 13 is in threaded, both ends of the jack 17 are communicated with the outside, the other side of the top surface of the base 1 is provided with a long groove 18, a second limit strip 19 is fixedly arranged in the long groove 18, and the second limit strip 19 can be in contact fit with the first limit strip 10. The staff inserts in jack 17 with an inserted bar, then rotate the inserted bar, the inserted bar can drive screw rod 13 and rotate, because

screw rod

13 and 15 screw-thread fit of spiro, screw rod 13 limit rotates limit vertical migration, make screw rod 13 downstream, can drive first spacing 10 downstream, first spacing 10 can be located rectangular groove 18, the top surface in close contact with of the bottom surface of up to first spacing 10 and the spacing 19 of second, first spacing 10, the spacing 19 of second is the great material of coefficient of friction, under the effect of frictional force, the sliding seat 5 can't continue to move. Jack 17 staggered arrangement to in the workman inserts the inserted bar in jack 17, the workman also can be very convenient through rotating the inserted bar vertical removal of the first spacing 10 of realization, thereby realize the limit function of sliding seat 5, this structure is comparatively simple, and the cost of each part is lower, is favorable to reducing the utility model discloses an overall cost.

Furthermore, as shown in fig. 3, the first position-limiting strip 10 and the second position-limiting strip 19 are both racks, and the racks can be meshed with each other. The stability of the stopper function after the engagement of the structure can be further improved, thereby further preventing the movable base 5 from moving.

Furthermore, as shown in fig. 2, at least three screw holes 7 are respectively formed in the outer periphery of the annular plate 3 according to the present embodiment, and the distance between every two adjacent screw holes 7 is equal. The at least three screw holes 7 mean that the at least three arc plates 9 are in contact with the surface of the workpiece, and the friction force between the arc plates 9 and the workpiece is large, so that the workpiece can be prevented from moving.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Numerical control machining center special fixture, its characterized in that: comprises a base (1), a fixed seat (2) is fixedly arranged on one side of the top surface of the base (1), a ring-shaped plate (3) is fixedly arranged on the top surface of the fixed seat (2), a plurality of parallel sliding grooves (4) are arranged on the other side of the top surface of the base (1), the outer ends of the sliding grooves (4) are communicated with the outside, a movable seat (5) is arranged on the other side of the top surface of the base (1), a plurality of parallel sliding strips (6) are fixedly arranged on the bottom surface of the movable seat (5), the sliding strips (6) are respectively positioned in the corresponding sliding grooves (4) and can slide along the sliding grooves, the same ring-shaped plate (3) is fixedly arranged on the top surface of the movable seat (5), the center lines of the ring-shaped plates (3) are collinear and parallel to the top surface of the base (1), a plurality of screw holes (7) are respectively arranged on the periphery of the ring-shaped plate (3), the, the inner of bolt (8) is respectively through bearing installation arc (9), and the concave surface of arc (9) all is equipped with stop device towards the inside of corresponding annular plate (3) in sliding seat (5), and stop device can restrict the horizontal migration of sliding seat (5).

2. The special fixture for the numerical control machining center according to claim 1, characterized in that: the fixing seat (2) and the movable seat (5) are of right-angled trapezoid structures, and the trapezoid surfaces of the fixing seat (2) and the movable seat (5) face obliquely upwards the base (1).

3. The numerical control machining center special fixture of claim 1 or 2, characterized in that: the sliding grooves (4) are all dovetail grooves, and the sliding strips (6) are all dovetail strips.

4. The special fixture for the numerical control machining center according to claim 1, characterized in that: the limiting device is a first limiting strip (10), a strip-shaped groove (11) is formed in the bottom surface of the movable seat (5), two ends of the strip-shaped groove (11) are communicated with the outside, the first limiting strip (10) is located in the strip-shaped groove (11) and can vertically move along the first limiting strip, a through hole (12) is formed in the top surface of the strip-shaped groove (11), the top surface of the first limiting strip (10) is connected with the lower end of a screw (13) through a bearing, a groove (14) is formed in one side of the movable seat (5), a spiral ring (15) is fixedly installed in the groove (14), a rectangular groove (16) is formed in one side of the movable seat (5), the same through hole (12) is formed in the bottom surface of the rectangular groove (16), the through hole (12) is communicated with the inside of the groove (14), the through hole (12), the screw (13) and the center line of the spiral ring (15) are collinear, the screw (13) sequentially penetrates through hole (12, the upper end of screw rod (13) is located rectangular channel (16), and several jack (17) are seted up to the periphery of screw rod (13), and the both ends of jack (17) all communicate with each other with the external world, and rectangular groove (18) are seted up to the top surface opposite side of base (1), and rectangular groove (18) internal fixation installs spacing strip of second (19), spacing strip of second (19) can with first spacing strip (10) contact cooperation.

5. The special fixture for the numerical control machining center according to claim 4, characterized in that: the first limiting strip (10) and the second limiting strip (19) are racks, and the two racks can be meshed with each other.

6. The special fixture for the numerical control machining center according to claim 1, characterized in that: the periphery of the annular plate (3) is respectively provided with at least three screw holes (7), and the distance between every two adjacent screw holes (7) is equal.