CN209021634U - Tubular workpiece positions chock - Google Patents

Abstract

The utility model discloses a kind of tubular workpieces to position chock, it is related to machining auxiliary equipment technical field, including sleeve, the at least three installation jacks extended radially through are circumferentially distributed on the barrel of the sleeve, wedge block is plugged in each installation jack, it is from one end to the other end gradually to the inclined inclined-plane in the axle center of the sleeve that each wedge block, which is located at the side in the sleeve,；It further include ball, the ball is located in the sleeve and tangent with the inclined-plane of each wedge block, and one end of the sleeve, which is equipped with, can push the ball that each wedge block is driven to be slided to outside the sleeve so that the pushing block that each wedge block is in contact with the inner wall of the tubular workpiece.The utility model solves the technical issues of tubular workpiece is easily pinched in clamping process in the prior art, and the utility model tubular workpiece positioning chock can effectively prevent tubular workpiece to be pinched, reduce the damage risk of workpiece, improve the yield of workpiece.

Description

Tubular workpiece positions chock

Technical field

The utility model relates to machining auxiliary equipment technical field, in particular to a kind of tubular workpiece positions chock.

Background technique

In manufacturing industry, the workpiece being much machined all is by CNC (numerically-controlled machine tool) come what is completed, and numerically-controlled machine tool exists When workpieces processing, needs to first pass through fixture and fix workpiece to be processed progress clamping, then processed again.Numerically-controlled machine tool can There are many workpiece type of processing, have block-like, strip, tubulose, irregular shape etc..Clamping is being carried out to workpiece When, it may occur that due to the problem of clamping is proper and disfiguring workpiece, especially in clamping tubular workpiece, clamping dynamics is difficult to control System, can't clip workpiece if dynamics is small, if can be pinched workpiece if great efforts.In actual processing, tubular workpiece is pressed from both sides Flat situation repeated.

Utility model content

For disadvantages described above, the purpose of the utility model is to provide a kind of tubular workpieces to position chock, this tubular workpiece is fixed Position chock can effectively prevent tubular workpiece to be pinched, and reduce the damage risk of workpiece, improve the yield of workpiece.

To achieve the goals above, the technical solution of the utility model is:

A kind of tubular workpiece positions chock, including sleeve, and it is radial that at least three are circumferentially distributed on the barrel of the sleeve Perforative installation jack is plugged with wedge block in each installation jack, and each wedge block is located in the sleeve Side is from one end to the other end gradually to the inclined inclined-plane in the axle center of the sleeve；It further include ball, the ball is located at institute It is interior and tangent with the inclined-plane of each wedge block to state sleeve, one end of the sleeve, which is equipped with, can push the ball to drive Each wedge block is moved to be slided to outside the sleeve so that each wedge block was in contact with the inner wall of the tubular workpiece Pushing block.

Wherein, the side that each wedge block is located at outside the sleeve is in contact with the inner wall of the tubular workpiece, and institute Stating side is the consistent arc surface of inner wall radian with the tubular workpiece.

Wherein, the width of the arc surface of the wedge block is greater than the width on the inclined-plane.

Wherein, the installation jack is the small bellmouth of outer imperial palace compatible with the wedge block.

Wherein, the end that the sleeve is not installed with the pushing block is equipped with reinforcing block.

Wherein, the reinforcing block is equipped with the venthole being connected to inside and outside the sleeve.

Wherein, the reinforcing block is threadedly coupled with the sleeve lining.

Wherein, the pushing block is connect with the inner thread of the sleeve.

Wherein, one end that the pushing block is in contact with the ball is pyramidal structure, the taper of the pyramidal structure and each The gradient on the inclined-plane of the wedge block is adapted.

Wherein, each installation jack is circumferentially distributed at equal intervals on the barrel of the sleeve.

After above-mentioned technical proposal, the beneficial effects of the utility model are:

Since the utility model tubular workpiece positioning chock includes sleeve, at least three are circumferentially distributed on the barrel of sleeve The installation jack extended radially through is plugged with wedge block in each installation jack, and the side that each wedge block is located in sleeve is served as reasons One end is to the other end gradually to the inclined inclined-plane in the axle center of sleeve；It further include ball, the inclined-plane of ball and each wedge block is tangent, set One end of cylinder is equipped with the pushing block that can push ball that each wedge block is driven to slide to outside sleeve.Carrying out tubular workpiece clamping When, first by the utility model limit plug it is packaged enter tubular workpiece in, then operate pushing block inwardly push ball, because wedge block is located at Side in sleeve is inclined-plane, and ball will squeeze each wedge block under the promotion of pushing block, so that each wedge block is by installation jack It is radial to be slided to outside sleeve, so that the inner wall with tubular workpiece is in contact, play the role of support in Internal tubular workpiece, from And can will not be also pinched while guaranteeing that tubular workpiece clamping is secured, the damage risk of workpiece is effectively reduced, is mentioned The yield of high workpiece.

In conclusion the utility model tubular workpiece positioning chock solve in the prior art tubular workpiece in clamping process In the technical issues of being easily pinched, the utility model tubular workpiece positioning chock can effectively prevent tubular workpiece to be pinched, The damage risk for reducing workpiece, improves the yield of workpiece.

Detailed description of the invention

Fig. 1 is the decomposition texture schematic diagram of the utility model tubular workpiece positioning chock；

Fig. 2 is the constitutional diagram of Fig. 1；

Fig. 3 is the A direction view of Fig. 2；

Fig. 4 is the line B-B cross-sectional view of Fig. 3；

Fig. 5 is the use state diagram of the utility model tubular workpiece positioning chock；

Fig. 6 is the C direction view of Fig. 5；

In figure: 10, sleeve, 12, installation jack, 20, wedge block, 30, ball, 40, pushing block, 50, reinforcing block, 52, ventilation Hole.

Specific embodiment

With reference to the accompanying drawings and examples, the utility model is further described.

Orientation shown in attached drawing is subject in the orientation being related in this specification, only represents opposite positional relationship, not generation The absolute positional relationship of table.

As shown in Figure 1, Figure 2, Fig. 4 and Fig. 5 is jointly shown, a kind of tubular workpiece positioning chock, including sleeve 10, the cylinder of sleeve 10 At least three installation jacks 12 extended radially through are circumferentially distributed on wall, are plugged with wedge block 20 in each installation jack 12, It is from one end to the other end gradually to the inclined inclined-plane in the axle center of sleeve 10 that each wedge block 20, which is located at the side in sleeve 10,.Tubulose It further includes ball 30 that workpiece, which positions chock, and ball 30 is located in sleeve, and ball 30 is between each wedge block 20, and is distinguished It is tangent with the inclined-plane of each wedge block 20.One end of sleeve 10, which is equipped with, can push ball 30 to drive each wedge block 20 to sleeve 10 The pushing block 40 of outer sliding, so that each wedge block 20 is in contact with the inner wall of tubular workpiece 60, thus the shape in tubular workpiece 60 At support, the clamped deformation of tubular workpiece 60 can effectively be prevented even to be pinched.

As Fig. 1, Fig. 3 and Fig. 6 jointly shown in, preferably respectively installation jack 12 is circumferential is distributed at equal intervals set for present embodiment On the barrel of cylinder 10, distribution can guarantee the portion that each wedge block 20 is in contact with tubular workpiece 60 to each installation jack 12 at equal intervals Position is also circumferential equidistantly distributed on the tube wall of tubular workpiece 60, it is ensured that support force suffered by the tube wall of tubular workpiece 60 Uniformly, it can effectively ensure that each position of tubular workpiece 60 will not be clamped deformation.

As Fig. 1, Fig. 3 and Fig. 6 jointly shown in, present embodiment is preferably installed there are four jack 12 sets altogether, corresponding wedge shape Block 20 also is provided with four, and four wedge blocks 20 are in crossing distribution.It should be noted that four installation jacks 12 are only this implementation The quantitative design personnel of a kind of signal of mode, quantity namely wedge block 20 that jack 12 is installed in practical application can basis It needs to be increased and decreased, the internal diameter if necessary to the tubular workpiece of positioning is larger, then several wedge blocks 20 can be arranged, if needed more The internal diameter for the tubular workpiece to be positioned is smaller, then can less several wedge blocks 20 are set, but at least need three just can be to pipe Shape workpiece forms stable support, that is to say, that as long as being more than or equal to three equal, the present embodiment is for the specific of wedge block Quantity and with no restrictions.

As Fig. 3, Fig. 5 and Fig. 6 jointly shown in, preferably each wedge block 20 of present embodiment is located at side and pipe outside sleeve 10 The inner wall of shape workpiece 60 is in contact, and the side side of further preferably wedge block 20 is the inner wall radian with tubular workpiece 60 Consistent arc surface.The arc surface design of wedge block 20 can guarantee the inner wall contact area of wedge block 20 and tubular workpiece 60 most Greatly, it best can play a supporting role to tubular workpiece 60.It should be noted that the radian of the arc surface of wedge block 20 can root According to the inner wall radian processing for the tubular workpiece 60 for needing to support, the structure in other faces can unified specification it is constant, thus can basis The specification for the tubular workpiece for needing to support freely replaces wedge block, so as to guaranteeing the utility model tubular workpiece limit plug Block is applicable to the tubular workpiece of different size, versatile.

As shown in Figure 1, Figure 2 and Fig. 3 is jointly shown, and the width of the arc surface of the preferred wedge block 20 of present embodiment is greater than inclined-plane Width, i.e. wedge block 20 are also inclined-plane, the end of wedge block 20 except at least one face in other two face on arc surface and inclined-plane Face be it is subtriangular, other two face of the further preferred wedge block 20 of present embodiment is inclined-plane, wedge block 20 End face is approximate isosceles triangle.The small structure of such outer imperial palace of wedge block 20 has the function of guiding, so that wedge block 20 can be more convenient inserting to installation jack 12 in, while also having the function of fool proof.

As Fig. 1 and Fig. 2 jointly shown in, present embodiment further preferably installation jack 12 be adapted with wedge block 20 The small bellmouth of outer imperial palace, i.e. the size that is located inside and outside the barrel of sleeve 10 of installation jack 12 is different, positioned at barrel The pore size of inside is small, and the pore size on the outside of barrel is big.Such structure of installation jack 12, which can play wedge block 20, to be led To the effect with limit, during guaranteeing that wedge block 20 radially slides, it can guarantee that 20 position of wedge block is correct, prevent wedge shape Block 20 deviates during sliding.

As Fig. 1 and Fig. 4 jointly shown in, the end that sleeve 10 is not installed with pushing block 40 is equipped with reinforcing block 50, reinforcing block 50 The intensity that sleeve 10 can be increased prevents sleeve 10 from deforming.The inner wall of present embodiment preferred reinforcing block 50 and sleeve 10 It is threadedly coupled, further preferably reinforcing block 50 is jackscrew.It should be noted that reinforcing block 50 and sleeve 10 are threaded to this The preferred embodiment of embodiment, screw connection structure is simple, and positioning chock is dismounted easily, reinforcing block in practical application It is not limited to be threadedly coupled with the connection relationship of sleeve, it can also be using snapping connection or being interference fitted connection, as long as can Plug plays the function of enhancing mechanical strength in the end of sleeve.

As shown in figure 4, reinforcing block 50 is equipped with the venthole 52 inside and outside connection sleeve 10, venthole 52 being capable of balancing sleeve Air pressure inside and outside 10 can prevent from pushing away motionless ball 30 because 10 internal pressure of sleeve is excessive, may make the promotion of ball 30 more It is laborsaving.

As Fig. 1 and Fig. 4 jointly shown in, between the preferred pushing block 40 of present embodiment and the inner wall of sleeve 10 be also screw thread connect It connects, is threadedly coupled so that shift-in of the pushing block 40 in sleeve 10, positioning and removing more convenient, present embodiment is further excellent Selecting pushing block 50 also is jackscrew, and being moveable into and out for pushing block 50 can be operated by tools such as screwdrivers, is operated more convenient.This implementation Mode one end that further preferred pushing block 50 is in contact with ball 30 is pyramidal structure, the taper of pyramidal structure and each wedge block The gradient on 20 inclined-plane is adapted, it is ensured that is inwardly promoted between wedge block 20 and will not be interfered in pushing block 50.

As shown in figure 5, shown in fig. 5 is only the signal of the utility model tubular workpiece positioning chock use state, it is practical It can be worked out as needed using the length of middle sleeve 10 and wedge block 20 in the axial direction, can be longer than tubular workpiece 60, Can be shorter than tubular workpiece 60, as long as can guarantee that tubular workpiece is not pinched.

The utility model tubular workpiece limit plug block structure is simple, easy to use, can effectively prevent tubular workpiece quilt It is pinched.When in use, it is only necessary to be put it into tubular workpiece before clamping tubular workpiece, then by pushing block into sleeve Precession pushes ball that each wedge block is driven to slide to outside sleeve, until the inner wall of the arc surface of each wedge block and tubular workpiece pastes Conjunction can play a supporting role to tubular workpiece in inside, it is prevented to be pinched.It such as needs the utility model tubular workpiece Positioning chock takes out out of tubular workpiece, then only needs to rotate in the opposite direction pushing block, and ball no longer presses closer each wedge block at this time, Each wedge block can be slided into sleeve, be no longer bonded with the inner wall of tubular workpiece, and tubular workpiece can be positioned to chock from tubulose It is taken out in workpiece.

The utility model is not limited to above-mentioned specific embodiment, and those skilled in the art visualize from above-mentioned Hair, without creative labor, the various transformation made are all fallen within the protection scope of the utility model.

Claims (10)

1. tubular workpiece positions chock, which is characterized in that

At least three installation jacks extended radially through, each peace are circumferentially distributed with including sleeve, on the barrel of the sleeve Plug and be plugged with wedge block in hole, each wedge block be located at the side in the sleeve be from one end to the other end gradually to The inclined inclined-plane in the axle center of the sleeve；

It further include ball, the ball is located in the sleeve and, the sleeve tangent with the inclined-plane of each wedge block One end be equipped with and can push the ball that each wedge block is driven to be slided to outside the sleeve so that each wedge shape The pushing block that block is in contact with the inner wall of the tubular workpiece.

2. tubular workpiece according to claim 1 positions chock, which is characterized in that each wedge block is located at the sleeve Outer side is in contact with the inner wall of the tubular workpiece, and the side is consistent with the inner wall radian of the tubular workpiece Arc surface.

3. tubular workpiece according to claim 2 positions chock, which is characterized in that the arc surface of the wedge block Width is greater than the width on the inclined-plane.

4. tubular workpiece according to claim 3 positions chock, which is characterized in that the installation jack for and the wedge shape The small bellmouth of the compatible outer imperial palace of block.

5. tubular workpiece according to claim 1 positions chock, which is characterized in that the sleeve is not installed with the pushing block End reinforcing block is installed.

6. tubular workpiece according to claim 5 positions chock, which is characterized in that the reinforcing block is equipped with described in connection Venthole inside and outside sleeve.

7. tubular workpiece according to claim 6 positions chock, which is characterized in that the reinforcing block and the sleeve lining It is threadedly coupled.

8. tubular workpiece according to claim 1 positions chock, which is characterized in that the inner wall of the pushing block and the sleeve It is threadedly coupled.

9. tubular workpiece according to claim 8 positions chock, which is characterized in that the pushing block is in contact with the ball One end be pyramidal structure, the taper of the pyramidal structure is adapted with the gradient on the inclined-plane of each wedge block.

10. tubular workpiece according to claim 1 positions chock, which is characterized in that between each installation jack circumferentially waits Away from be distributed on the barrel of the sleeve.