CN202701805U - An automatic centering fixture for cylindrical parts for a gantry machining center - Google Patents

An automatic centering fixture for cylindrical parts for a gantry machining center Download PDF

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Publication number
CN202701805U
CN202701805U CN 201220182471 CN201220182471U CN202701805U CN 202701805 U CN202701805 U CN 202701805U CN 201220182471 CN201220182471 CN 201220182471 CN 201220182471 U CN201220182471 U CN 201220182471U CN 202701805 U CN202701805 U CN 202701805U
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CN
China
Prior art keywords
piston bar
transposition
oil cylinder
guide piston
machining center
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN 201220182471
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Chinese (zh)
Inventor
陈文兴
姚天舜
高渊
鞠文棋
潘建刚
王萍
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CHANGZHOU XIERUN SEIKI Co Ltd
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CHANGZHOU XIERUN SEIKI Co Ltd
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Priority to CN 201220182471 priority Critical patent/CN202701805U/en
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Abstract

The utility model relates to the technical field of auxiliary fixtures for machine tools, in particular to an automatic centering fixture for cylindrical parts for a gantry machining center. The automatic centering fixture comprises a fixture stand, a V-shaped block base arranged on the fixture stand, a transitional V-shaped block, a press plate arranged above the transitional V-shaped block and an oil cylinder used for controlling the vertical displacement and/or horizontal rotation of the press plate, wherein the oil cylinder is arranged on the fixture stand and positioned on the lateral side of the V-shaped block base, a V-shaped groove is formed at the upper end of the V-shaped block base and used for holding the transitional V-shaped block, and the press plate is fixed on the extending end of the oil cylinder. With the transitional V-shaped block additionally arranged on the V-shaped block base, the automatic centering fixture can fit with the cylindrical parts with large variation range of diameters, so that frequent replacement of a whole set of equipment is not needed; and besides, the design of the combined oil cylinder can achieve the effect of two-dimensional motions including vertical motion and horizontal rotation, so that the motion and rotation are integrated into a whole, the performance of the oil cylinder is improved and the structure of the equipment is simplified.

Description

Gantry machining center cylindrical part automatically centering fixture
Technical field
The utility model relates to lathe auxiliary clamp technical field, relates in particular to a kind of gantry machining center cylindrical part automatically centering fixture.
Background technology
The product variety that modern production requires enterprise to develop often updates, with demand and the competition that adapts to market.According to statistics, at present in, the workpiece kind of small quantities of many variety production accounted for about 85% of workpiece kind sum.But general enterprises is all still got used to a large amount of traditional special fixtures that adopt, and jig has proposed following Secretary:
1) the rapidly and easily operation of service new product is produced preparatory period, decline production cost to shorten;
2) one group of workpiece that possesses similar characteristic of energy clamping;
3) can be applicable to precision machined high precision machine tool anchor clamps;
4) can be applicable to the Novel jig of various modernized manufacturing technologies;
5) take the efficient clamping take Hydraulic Station etc. as power source to install, further to reduce labor intensity and to raise labour productivity;
6) standardization level of raising jig.
Cylinder class part generally comes the processing column end with the V-block clamping, and V-block can play the effect of centering.But existing anchor clamps adaptability is relatively poor, for the larger cylindrical part of vary in diameter scope, needs the more complete anchor clamps of transducer set, greatly waste of manpower, material resources, and cost is high.
The utility model content
The technical problems to be solved in the utility model is: in order to adapt to the larger cylindrical part of vary in diameter scope, the utility model provides a kind of gantry machining center cylindrical part automatically centering fixture, when the vary in diameter scope is larger, need not to change a whole set of anchor clamps.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of gantry machining center cylindrical part automatically centering fixture, comprise clamp base, be arranged on V-block base, transition V-block on the clamp base, be arranged on the pressing plate of transition V-block top and the oil cylinder that is used for control pressing plate vertical displacement and/or horizontally rotates, described oil cylinder is installed in the side that is positioned at the V-block base on the clamp base, described V-block base upper end offers for the V-type groove of placing the transition V-block, and described pressing plate is fixed on the oil cylinder external part.
For the ease of controlling the pressing plate vertical displacement and/or horizontally rotating, described oil cylinder is composite oil cylinder, comprise cylinder barrel, be arranged on transposition guide piston bar and the rotary stopper screw of cylinder barrel inner bottom part, also be set with successively on the described transposition guide piston bar and clamp guide piston bar and transposition piston, the surface of transposition guide piston bar offers at least one helicla flute, described rotary stopper screw is arranged in the transposition piston and passes and clamps in the guide piston bar insertion helicla flute, offer at least together straight trough on the direction parallel with its axis on the surface of described clamping guide piston bar, described composite oil cylinder also comprises clamping piston, one end of clamping piston is sleeved on the external part that clamps the guide piston bar, the other end of clamping piston stretches out cylinder barrel and removably connects with pressing plate, clamping piston is fixed with stop screw with the junction that clamps the guide piston bar, described stop screw is arranged on clamping piston inside, the end of stop screw extend in the straight trough, is provided with the transition piston between clamping piston and the transposition piston.This composite oil cylinder can be realized the two dimensional motion that moves up and down and horizontally rotate, will move like this and rotation becames one structure, has not only improved the performance of oil cylinder, has also simplified the structure of equipment.
Further, particularly, described helicla flute is drawn together screw slots, guiding skewed slot and the guiding straight trough that is communicated with successively, and the center line of the center line of described screw slots and guiding straight trough is at the circumference of the lip-deep projection of transposition guide piston bar at a distance of 1/4 transposition guide piston bar.
Further, for so that the motion of transposition guide piston bar is steady, so that the surface of described transposition guide piston bar offers the twice helicla flute along transposition piston movement direction, described twice helicla flute is symmetrical about the axis of transposition guide piston bar.
Further, for to clamp the motion of guide piston bar steady, offer the twice straight trough on the direction parallel with its axis on the surface of described clamping guide piston bar, described twice straight trough is symmetrical about the axis that clamps the guide piston bar.
In order to adapt to the larger cylindrical part of vary in diameter scope and parts/maintenance, described transition V-block is dismountable to be installed in the V-type groove.
In order to protect surface of the work injury-free, be inlaid with copper billet on the fixturing surface of described transition V-block and pressing plate.
As preferably, described spiral fluted cross sectional shape is V-arrangement, because the hardness of steel ball itself is very high, in order to reduce the requirement to stop screw and helicla flute matching property, is provided with in the described helicla flute and is convenient to the steel ball that the rotary stopper screw slides in helicla flute.
As another kind of scheme, described spiral fluted cross sectional shape is U-shaped.
The beneficial effects of the utility model are, gantry machining center of the present utility model cylindrical part automatically centering fixture, set up the transition V-block at the V-block base, can adapt to the larger cylindrical part of vary in diameter scope, not need often to change complete equipment, in addition, the design of composite oil cylinder can realize the two dimensional motion that moves up and down and horizontally rotate, to move like this and rotation becames one structure, not only improve the performance of oil cylinder, also simplify the structure of equipment.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation that the utility model gantry machining center is used cylindrical part automatically centering fixture embodiment 1;
Fig. 2 is the internal structure schematic diagram that the utility model gantry machining center is used the clamping guide piston bar composite oil cylinder of cylindrical part automatically centering fixture;
Fig. 3 is the structural representation of the transposition guide piston bar of the utility model embodiment 1;
Fig. 4 is the mounting structure schematic diagram of the utility model embodiment 1 rotary stopper screw;
Fig. 5 is the structural representation of the transposition guide piston bar of the utility model embodiment 2;
Fig. 6 is the mounting structure schematic diagram of the utility model embodiment 2 rotary stopper screws.
Among the figure 1, clamp base, 2, the V-block base, 3, the transition V-block, 3-1, copper billet, 4, pressing plate, 5, cylinder barrel, 6, transposition guide piston bar, 6-1, screw slots, 6-2, guiding skewed slot, 6-3, guiding straight trough, 7, clamp the guide piston bar, 8, the transposition piston, 9, rotary stopper screw, 10, clamping piston, 11, the transition piston, 12, stop screw, 13, steel ball.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Shown in Fig. 1-4, the embodiment 1 that the utility model gantry machining center is used the cylindrical part automatically centering fixture, it also is preferred embodiment of the present utility model, comprise clamp base 1, be arranged on the V-block base 2 on the clamp base 1, transition V-block 3, be arranged on the pressing plate 4 of transition V-block 3 tops and the oil cylinder that is used for control pressing plate 4 vertical displacements and/or horizontally rotates, described oil cylinder is installed in the side that is positioned at V-block base 2 on the clamp base 1, described V-block base 2 upper ends offer for the V-type groove of placing transition V-block 2, and pressing plate 4 is fixed on the external part of oil cylinder.Transition V-block 2 dismountable being installed in the V-type groove are inlaid with copper billet 3-1 on the fixturing surface of transition V-block 3 and pressing plate 4.
Oil cylinder in the present embodiment is composite oil cylinder, comprise cylinder barrel 5, be arranged on transposition guide piston bar 6 and two rotary stopper screws 9 of cylinder barrel 5 inner bottom parts, also be set with successively on the transposition guide piston bar 6 and clamp guide piston bar 7 and transposition piston 8, the surface of transposition guide piston bar 6 offers the twice helicla flute along transposition piston 8 directions of motion, the twice helicla flute is symmetrical about the axis of transposition guide piston bar 6, it is interior symmetrical that rotary stopper screw 9 is arranged on transposition piston 8, and pass clamping guide piston bar 7 and insert in the helicla flutes, clamp on the direction parallel with its axis on the surface of guide piston bar 7 and offer the twice straight trough, the twice straight trough is symmetrical about the axis that clamps guide piston bar 7, composite oil cylinder also comprises clamping piston 10, one end of clamping piston 10 is sleeved on the external part that clamps guide piston bar 7, the other end of clamping piston 10 stretches out cylinder barrel 5 and removably connects with pressing plate 4, clamping piston 10 is fixed with stop screw 12 with the junction that clamps guide piston bar 7, stop screw 12 is arranged on clamping piston 10 inside, the end of stop screw 12 extend in the straight trough, can in straight trough, slide, be provided with transition piston 11 between clamping piston 10 and the transposition piston 8.
Helicla flute comprises screw slots 6-1, guiding skewed slot 6-2 and the guiding straight trough 6-3 that is communicated with successively, the center line of the center line of described screw slots 6-1 and guiding straight trough 6-3, the distance between the 6 lip-deep projections of transposition guide piston bar is the circumference of 1/4 transposition guide piston bar 6.The spiral fluted cross sectional shape is V-arrangement, is provided with in the helicla flute to be convenient to the steel ball 13 that rotary stopper screw 9 slides in helicla flute, matches in the end of steel ball 13 and rotary stopper screw 9.
Shown in Fig. 1,2,5,6, the embodiment 2 that the utility model gantry machining center is used the cylindrical part automatically centering fixture, the spiral fluted cross sectional shape is U-shaped, rotary stopper screw 9 directly slides in helicla flute, all the other technical schemes all with embodiment 1 in consistent, present embodiment has saved installs the steel ball that cooperates, but its sliding effect is not as embodiment 1, the suffered shear stress of rotary stopper screw 9 is too large, is easy to fracture, and U-lag is easily wearing and tearing also.
The utility model gantry machining center cylindrical part automatically centering fixture, the scope of clamp cylinders body diameter of part are Φ 50-Φ 440mm.Wherein V-block base 2 clamp cylinders body diameter of part scopes are Φ 155-Φ 440; Clamp small diameter cylinder part such as need, need to transition V-block 3 be installed at V-block base 2, this moment, clamp cylinders body diameter of part scope was Φ 50-Φ 155.
Composite oil cylinder in the present embodiment is composited by clamping cylinder and transposition oil cylinder, and clamping stroke is 200mm, and the transposition angle is 90 °.Transposition is arbitrarily control in the clamping cylinder travel range.
During work, transposition guide piston bar 6 is used for horizontally rotating of control pressing plate 4, clamps guide piston bar 7 and is used for moving up and down of pressing plate 4.Particularly, when transposition piston 8 moves upward, driven rotary stop screw 9 is mobile in helicla flute, namely slip over successively screw slots 6-1, guiding skewed slot 6-2 and guiding straight trough 6-3, thereby rotary stopper screw 9 drives and clamps 90 ° of rotations of guide piston bar 7 generations, clamp guide piston bar 7 and drive clamping piston 10, realize that finally the external part band dynamic pressure plate 4 of clamping piston 10 rotates 90 °; When transposition piston 8 moves downward again, can realize 90 ° of pressing plate 4 reverse rotations.
Because what clamping guide piston bar 7 surfaces were offered is straight trough, does not affect the clamping that moves up and down of clamping piston 10.Transposition and clamping are combined in the cylinder body, have greatly simplified clamp structure, improved operating efficiency.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.

Claims (9)

1. gantry machining center cylindrical part automatically centering fixture, it is characterized in that: comprise clamp base (1), be arranged on the V-block base (2) on the clamp base (1), transition V-block (3), be arranged on the pressing plate (4) of transition V-block (3) top and the oil cylinder that is used for control pressing plate (4) vertical displacement and/or horizontally rotates, described oil cylinder is installed in the side that is positioned at V-block base (2) on the clamp base (1), described V-block base (2) upper end offers for the V-type groove of placing transition V-block (2), and described pressing plate (4) is fixed on the oil cylinder external part.
2. gantry machining center as claimed in claim 1 cylindrical part automatically centering fixture, it is characterized in that: described oil cylinder is composite oil cylinder, comprise cylinder barrel (5), be arranged on transposition guide piston bar (6) and the rotary stopper screw (9) of cylinder barrel (5) inner bottom part, also be set with successively on the described transposition guide piston bar (6) and clamp guide piston bar (7) and transposition piston (8), the surface of transposition guide piston bar (6) offers at least one helicla flute, described rotary stopper screw (9) is arranged in the transposition piston (8) and passes and clamps in guide piston bar (7) the insertion helicla flute, offer at least together straight trough on the direction parallel with its axis on the surface of described clamping guide piston bar (7), described composite oil cylinder also comprises clamping piston (10), one end of clamping piston (10) is sleeved on the external part that clamps guide piston bar (7), the other end of clamping piston (10) stretches out cylinder barrel (5) and removably connects with pressing plate (4), clamping piston (10) is fixed with stop screw (12) with the junction that clamps guide piston bar (7), described stop screw (12) is arranged on clamping piston (10) inside, the end of stop screw (12) extend in the straight trough, is provided with transition piston (11) between clamping piston (10) and the transposition piston (8).
3. gantry machining center as claimed in claim 2 cylindrical part automatically centering fixture, it is characterized in that: described helicla flute comprises screw slots (6-1), guiding skewed slot (6-2) and the guiding straight trough (6-3) that is communicated with successively, the center line of the center line of described screw slots (6-1) and guiding straight trough (6-3) apart is the circumference of 1/4 transposition guide piston bar (6) in the lip-deep projection of transposition guide piston bar (6).
4. gantry machining center as claimed in claim 2 cylindrical part automatically centering fixture, it is characterized in that: the surface of described transposition guide piston bar (6) offers the twice helicla flute along transposition piston (8) direction of motion, and described twice helicla flute is symmetrical about the axis of transposition guide piston bar (6).
5. gantry machining center as claimed in claim 2 cylindrical part automatically centering fixture, it is characterized in that: offer the twice straight trough on the direction parallel with its axis on the surface of described clamping guide piston bar (7), described twice straight trough is symmetrical about the axis that clamps guide piston bar (7).
6. such as each described gantry machining center cylindrical part automatically centering fixture of claim 1-5, it is characterized in that: described transition V-block (3) is dismountable to be installed in the V-type groove.
7. such as each described gantry machining center cylindrical part automatically centering fixture of claim 1-5, it is characterized in that: be inlaid with copper billet (3-1) on the fixturing surface of described transition V-block (3) and pressing plate (4).
8. gantry machining center as claimed in claim 3 cylindrical part automatically centering fixture, it is characterized in that: described spiral fluted cross sectional shape is V-arrangement, being provided with in the described helicla flute and being convenient to the steel ball (13) that rotary stopper screw (9) slides in helicla flute, matches in the end of described steel ball (13) and rotary stopper screw (9).
9. gantry machining center as claimed in claim 3 cylindrical part automatically centering fixture, it is characterized in that: described spiral fluted cross sectional shape is U-shaped.
CN 201220182471 2012-04-25 2012-04-25 An automatic centering fixture for cylindrical parts for a gantry machining center Withdrawn - After Issue CN202701805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220182471 CN202701805U (en) 2012-04-25 2012-04-25 An automatic centering fixture for cylindrical parts for a gantry machining center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220182471 CN202701805U (en) 2012-04-25 2012-04-25 An automatic centering fixture for cylindrical parts for a gantry machining center

Publications (1)

Publication Number Publication Date
CN202701805U true CN202701805U (en) 2013-01-30

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Application Number Title Priority Date Filing Date
CN 201220182471 Withdrawn - After Issue CN202701805U (en) 2012-04-25 2012-04-25 An automatic centering fixture for cylindrical parts for a gantry machining center

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672479A (en) * 2012-04-25 2012-09-19 常州协润精机有限公司 Automatic centering fixture for cylindrical part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672479A (en) * 2012-04-25 2012-09-19 常州协润精机有限公司 Automatic centering fixture for cylindrical part

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130130

Effective date of abandoning: 20150527

RGAV Abandon patent right to avoid regrant