CN207858289U - A kind of deep hole internal expansion type turning attachment that clamping is stable - Google Patents

Abstract

The utility model discloses a kind of deep hole internal expansion type turning attachments that clamping is stable, including shell, the top at the shell inner cavity front and the back side offers the first sliding groove and second sliding slot respectively with lower part, between two the first slide plates fixture block has been fixedly connected between two the second slide plates, two sides of the fixture block far from shell open up and third sliding slot, the middle part of the cover top portion from left to right offers 13 locating slots successively, it is fixedly connected with briquetting at the top and bottom of the mobile column inner cavity, it is fixedly connected with locating piece at the top of the mobile column left side central portion, locating piece intracavity bottom both sides have been fixedly connected with resetting spring, it is fixedly connected with locating rod between two sliding blocks.The utility model, which passes through, is arranged mobile column, briquetting, the first sliding groove, second sliding slot, third sliding slot, fixture block, locating piece, locating slot, locating rod and resetting spring so that the turning attachment and to eat stability good.

Description

A kind of deep hole internal expansion type turning attachment that clamping is stable

Technical field

The utility model is related to turning attachment equipment technical field, specially a kind of deep hole internal expansion type lathe that clamping is stable Fixture.

Background technology

It is well known that turning attachment is in one of the lathe apparatus gripped to workpiece, especially in deep hole In the operational process of internal expanding lathe, the stability that workpiece is clamped in fixture will have a direct impact on the precision of processing.

Currently, three-jaw is usually used in carrying out clamping process to workpiece in traditional deep hole internal expansion type turning attachment Formula fixture drives three-pawl type fixture block that workpiece is clamped using cylinder, and in clamping process, chucking power is carried by cylinder completely For once cylinder air-tightness is bad or impaired, just will appear the case where fixture loosens, this results in traditional deep hole internal expanding After cylinder air-tightness is impaired, fixture is easy to occur the problem of loosening formula turning attachment.

Utility model content

The purpose of this utility model is to provide a kind of deep hole internal expansion type turning attachments that clamping is stable, have clamping and stablize The advantages of, solve traditional deep hole internal expansion type turning attachment after cylinder air-tightness is impaired, the problem of fixture is easy to loosen.

To achieve the above object, the utility model provides the following technical solutions：A kind of deep hole internal expansion type vehicle that clamping is stable The top at bed fixture, including shell, the shell inner cavity front and the back side offers the first sliding groove with lower part and is slided with second respectively Slot, the first sliding groove and second sliding slot inner cavity have been movably connected with the first slide plate and the second slide plate, first slide plate and The opposite side of second slide plate is from left to right fixedly connected sequentially there are four brute spring, between two the first slide plates with two Fixture block is fixedly connected between second slide plate, two sides of the fixture block far from shell open up and third sliding slot.

The middle part of the cover top portion from left to right offers 13 locating slots successively, the outer casing frontispiece and the back side Middle part is connected with lead screw, and the outside screw of the lead screw is connected with thread bush, shifting is socketed on the outside of the thread bush Column is moved, has been fixedly connected with briquetting at the top and bottom of the mobile column inner cavity, the top of the mobile column left side central portion is fixed It is connected with locating piece, locating piece intracavity bottom both sides have been fixedly connected with resetting spring, and the top of the resetting spring is solid Surely it is connected with sliding block, locating rod is fixedly connected between two sliding blocks.

Preferably, the top of the locating rod is fixedly connected with baffle through locating piece, and the bottom of locating rod is through fixed Position block simultaneously extends between locating piece bottom and the top of shell.

Preferably, the upper and lower part at front and the back side is connected with slide bar inside the mobile column, and slide bar Both ends run through mobile column and be fixedly connected on the outside of shell.

Preferably, the middle part on the left of the shell is connected with active angular wheel, and the front of active angular wheel It is fixedly connected with handle.

Preferably, the left side of the lead screw runs through thread bush and extends to the outside of thread bush, and the left side socket of lead screw There is driven angular wheel.

Preferably, the driven angular wheel is respectively positioned on the left side of shell, the active conical tooth with active angular wheel It is engaged respectively with two opposite sides of driven angular wheel with the back side in the front of wheel.

Compared with prior art, the beneficial effects of the utility model are as follows：

1, the utility model is by being arranged mobile column, briquetting, the first sliding groove, second sliding slot, third sliding slot and fixture block so that Rotational handle, handle drive lead screw to rotate by active angular wheel and driven angular wheel, and lead screw is driven by thread bush and moved Dynamic column slides to the right, and mobile column drives briquetting Slideslip and entrance third sliding slot to the right, with continuing to move to for mobile column, briquetting Bottom by the way that in third sliding slot inner cavity, Slideslip makes two fixture blocks close to each other and is clamped to workpiece to the right, clamp it Afterwards, the bottom of briquetting can keep the active force to two fixture blocks and two fixture blocks is allowed securely to clamp workpiece always, avoid When current fixture utilizes cylinder thrust, if cylinder leaks air or when failure, the phenomenon that fixture will relax, to realize The stable advantage of turning attachment clamping.

2, the utility model is by being arranged locating piece, locating slot, locating rod and resetting spring so that in the initial state, Resetting spring is remained by sliding block applies locating rod downward active force, and baffle is overlapped with the left side at the top of mobile column When, resetting spring is in confined state, after fixture clamps workpiece, to the outside flap shutter of mobile column, at this point, Compressed resetting spring can drive locating rod to be inserted into locating slot by sliding block, be carried out to the position of mobile column further It is fixed, it can reach and the distance between two fixture blocks are further fixed, to further improve the turning attachment Stable advantage is clamped.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model structural side view；

Fig. 3 is enlarged drawing at A in Fig. 1.

In figure：1 shell, 2 the first sliding grooves, 3 second sliding slots, 4 first slide plates, 5 second slide plates, 6 brute springs, 7 fixture blocks, 8 Third sliding slot, 9 locating slots, 10 lead screws, 11 thread bush, 12 mobile columns, 13 briquettings, 14 locating pieces, 15 resetting springs, 16 sliding blocks, 17 locating rods, 18 baffles, 19 slide bars, 20 active angular wheels, 21 handles, 22 driven angular wheels.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of deep hole internal expansion type lathe folder that clamping is stable The middle part of tool, including shell 1,1 left side of shell is connected with active angular wheel 20, and the front of active angular wheel 20 is solid Surely it is connected with handle 21, the top and lower part at 1 inner cavity front of shell and the back side offer the first sliding groove 2 and second sliding slot 3 respectively, The first sliding groove 2 has been movably connected with the first slide plate 4 and the second slide plate 5 with 3 inner cavity of second sliding slot, and the first slide plate 4 and second is slided The opposite side of plate 5 is from left to right fixedly connected sequentially there are four brute spring 6, by the way that brute spring 6 is arranged so that strength Spring 6 can apply active force to fixture block 7 by the first slide plate 4 and the second slide plate 5 respectively in the initial state and allow two folders Keep maximum distance between block 7, the insertion of part easy to process, to further increase the practicability of the fixture, two first Fixture block 7 is fixedly connected between slide plate 4 between two the second slide plates 5, two sides of the fixture block 7 far from shell 1 open up With third sliding slot 8, pass through setting mobile column 12, briquetting 13, the first sliding groove 2, second sliding slot 3, third sliding slot 8 and fixture block 7 so that Rotational handle 21, handle 21 drive lead screw 10 to rotate by active angular wheel 20 and driven angular wheel 22, and lead screw 10 passes through Thread bush 11 drives mobile column 12 to slide to the right, and mobile column 12 drives briquetting 13 Slideslip and entrance third sliding slot 8 to the right, with Mobile column 12 continues to move to, and the bottom of briquetting 13 is by the way that in 8 inner cavity of third sliding slot, Slideslip allows two fixture blocks 7 mutually to lean on to the right Closely and workpiece is clamped, after clamping, the bottom of briquetting 13 can keep the active force to two fixture blocks 7 and allow always Two fixture blocks 7 securely clamp workpiece, when avoiding current fixture using cylinder thrust, if cylinder leaks air or failure When, the phenomenon that fixture will relax, to realize the stable advantage of turning attachment clamping.

The middle part at 1 top of shell from left to right offers 13 locating slots 9, the middle part in shell 1 front and the back side successively It is connected with lead screw 10, the left side of lead screw 10 runs through thread bush 11 and extends to the outside of thread bush 11, and lead screw 10 Left side is socketed with driven angular wheel 22, and driven angular wheel 22 is respectively positioned on the left side of shell 1 with active angular wheel 20, actively The front of angular wheel 20 is engaged with two opposite sides of driven angular wheel 22 respectively with the back side, the outside screw of lead screw 10 It is connected with thread bush 11, the outside of thread bush 11 is socketed with mobile column 12, by the way that mobile column 12 is arranged so that when mobile column 12 is moved It moves the outside of fixture block 7 and when workpiece is clamped in fixture block 7, the strength that fixture block 7 clamps workpiece comes from mobile column 12 inner walls are to the active force of briquetting 13, and the hardness of mobile column 12 will not deform upon by force, therefore, it is possible to allow fixture block 7 to be protected always The clamped condition to workpiece is held, to ensure that the realization of stabilization function, 12 inside front of mobile column and the back side is clamped in the fixture Upper and lower part be connected with slide bar 19, and mobile column 12 and solid with the outside of shell 1 is run through at the both ends of slide bar 19 Fixed connection, by the way that slide bar 19 is arranged so that slide bar 19 can be supported mobile column 12 and keep the stability of mobile column 12, To ensure that the fixture can more stablize grips workpiece, the top and bottom of 12 inner cavity of mobile column are solid Surely it is connected with briquetting 13, locating piece 14,14 intracavity bottom both sides of locating piece are fixedly connected at the top of 12 left side central portion of mobile column Resetting spring 15 has been fixedly connected with it, the top of resetting spring 15 is fixedly connected with sliding block 16, fixed between two sliding blocks 16 to connect It is connected to locating rod 17, the top of locating rod 17 is fixedly connected with baffle 18 through locating piece 14, and the bottom of locating rod 17 is run through Locating piece 14 simultaneously extends between 14 bottom of locating piece and the top of shell 1, by the way that baffle 18 is arranged so that pull up baffle 18, baffle 18 drives locating rod 17 to move up and by 16 compression reseting spring 15 of sliding block, then turn to 12 side of mobile column Dynamic baffle 18 simultaneously overlaps the left side at 12 top of the bottom of baffle 18 and mobile column, and the bottom of locating rod 17 can be allowed to be maintained at fixed Between position 14 bottom of block and the top of shell 1, the movement of column 12 easy to remove, to further increase the practicability of the fixture, By the way that locating piece 14, locating slot 9, locating rod 17 and resetting spring 15 is arranged so that in the initial state, resetting spring 15 passes through Sliding block 16, which remains, applies locating rod 17 downward active force, multiple when baffle 18 and the left side at 12 top of mobile column overlap Position spring 15 is in confined state, after fixture clamps workpiece, to the outside flap shutter 18 of mobile column 12, this When, compressed resetting spring 15 can drive locating rod 17 to be inserted into locating slot 9 by sliding block 16, to the position of mobile column 12 It is further fixed, can reach and the distance between two fixture blocks 7 are further fixed, to further increase The stable advantage of turning attachment clamping.

In use, rotational handle 21, handle 21 drives lead screw 10 by active angular wheel 20 and driven angular wheel 22 Rotation, lead screw 10 drive mobile column 12 to slide to the right by thread bush 11, and mobile column 12 drives briquetting 13, and Slideslip is gone forward side by side to the right Enter third sliding slot 8, with continuing to move to for mobile column 12, the bottom of briquetting 13 passes through in 8 inner cavity of third sliding slot Slideslip to the right It makes two fixture blocks 7 close to each other and workpiece is clamped, after clamping, the bottom of briquetting 13 can be kept always to two The active force of fixture block 7 simultaneously allows two fixture blocks 7 securely to clamp workpiece, when avoiding current fixture using cylinder thrust, if Cylinder leaks air or when failure, the phenomenon that fixture will relax, and in the initial state, resetting spring 15 is begun by sliding block 16 It keeps applying locating rod 17 downward active force eventually, when baffle 18 and the left side at 12 top of mobile column overlap, resetting spring 15 In confined state, after fixture clamps workpiece, to the outside flap shutter 18 of mobile column 12, at this point, by compressing Resetting spring 15 locating rod 17 can be driven to be inserted into locating slot 9 by sliding block 16, to the position of mobile column 12 into advancing one The fixation of step can reach and further be fixed to the distance between two fixture blocks 7.

In conclusion the deep hole internal expansion type turning attachment that the clamping is stablized, by the way that mobile column 12, briquetting 13, first is arranged Sliding slot 2, second sliding slot 3, third sliding slot 8, fixture block 7, locating piece 14, locating slot 9, locating rod 17 and resetting spring 15, solve Traditional deep hole internal expansion type turning attachment is after cylinder air-tightness is impaired, the problem of fixture is easy to loosen.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of deep hole internal expansion type turning attachment that clamping is stable, including shell（1）, it is characterised in that：The shell（1）Inner cavity The top in front and the back side offers the first sliding groove respectively with lower part（2）With second sliding slot（3）, the first sliding groove（2）With Two sliding slots（3）Inner cavity has been movably connected with the first slide plate（4）With the second slide plate（5）, first slide plate（4）With the second slide plate （5）Opposite side is from left to right fixedly connected sequentially, and there are four brute springs（6）, two the first slide plates（4）Between with two A second slide plate（5）Between be fixedly connected with fixture block（7）, two fixture blocks（7）Far from shell（1）Side open up and third Sliding slot（8）；

The shell（1）The middle part at top from left to right offers 13 locating slots successively（9）, the shell（1）Front with The middle part at the back side is connected with lead screw（10）, the lead screw（10）Outside screw be connected with thread bush（11）, the spiral shell Line set（11）Outside be socketed with mobile column（12）, the mobile column（12）Briquetting has been fixedly connected at the top and bottom of inner cavity （13）, the mobile column（12）Locating piece is fixedly connected at the top of left side central portion（14）, the locating piece（14）Intracavity bottom Both sides have been fixedly connected with resetting spring（15）, the resetting spring（15）Top be fixedly connected with sliding block（16）, two cunnings Block（16）Between be fixedly connected with locating rod（17）.

2. a kind of stable deep hole internal expansion type turning attachment of clamping according to claim 1, it is characterised in that：The positioning Bar（17）Top run through locating piece（14）It is fixedly connected with baffle（18）, and locating rod（17）Bottom run through locating piece（14） And extend to locating piece（14）Bottom and shell（1）Top between.

3. a kind of stable deep hole internal expansion type turning attachment of clamping according to claim 1, it is characterised in that：The movement Column（12）The upper and lower part in internal front and the back side is connected with slide bar（19）, and slide bar（19）Both ends run through move Dynamic column（12）And and shell（1）Outside be fixedly connected.

4. a kind of stable deep hole internal expansion type turning attachment of clamping according to claim 1, it is characterised in that：The shell （1）Active angular wheel is connected in the middle part of left side（20）, and active angular wheel（20）Front be fixedly connected with hand Handle（21）.

5. a kind of stable deep hole internal expansion type turning attachment of clamping according to claim 1, it is characterised in that：The lead screw （10）Left side run through thread bush（11）And extend to thread bush（11）Outside, and lead screw（10）Left side be socketed with from mantle Shape gear（22）.

6. a kind of stable deep hole internal expansion type turning attachment of clamping according to claim 5, it is characterised in that：It is described driven Angular wheel（22）With active angular wheel（20）It is respectively positioned on shell（1）Left side, the active angular wheel（20）Front With the back side respectively with two driven angular wheels（22）Opposite side engagement.