CN102423855A

CN102423855A - Fixture

Info

Publication number: CN102423855A
Application number: CN2011103201367A
Authority: CN
Inventors: 谭冬桂
Original assignee: Zhuzhou Nanfang Gas Turbine Packaging and Installation Co Ltd
Current assignee: Zhuzhou Nanfang Gas Turbine Packaging and Installation Co Ltd
Priority date: 2011-10-20
Filing date: 2011-10-20
Publication date: 2012-04-25
Anticipated expiration: 2031-10-20
Also published as: CN102423855B

Abstract

The invention provides a fixture. The fixture comprises a fixed disk, a first bearing and a second bearing which are fixed arranged on the fixed disk at intervals, and a rotating part which is rotatably and fixedly arranged between the first bearing and the second bearing, wherein, the first side wall and second side wall of the rotating part are oppositely arranged, and a hollow accommodating hole is arranged between the first side wall and the second side wall; a workpiece to be held is arranged in the accommodating hole, a locating block and a pressing block are oppositely and respectively arranged on the first side wall and the second side wall, and the locating block and the pressing block are respectively against the first section and second section of the workpiece; and the third side wall and fourth side wall of the rotating part are oppositely arranged, a first supporting screw and a second supporting screw are respectively arranged on the third side wall and the fourth side wall in a staggered manner, and the first supporting screw and the second supporting screw are respectively against the upper side surface and bottom side surface of the workpiece. By adopting the fixture, the machining precision of the workpiece is improved and the scrap rate of parts is reduced, and meanwhile, the production cost is lowered, the production efficiency is improved, and mass production is realized.

Description

Anchor clamps

Technical field

The present invention relates to the part processing field, especially, relate to a kind of anchor clamps that are used for processing work.

Background technology

As shown in Figure 1, processed work comprises one, and this axle comprises side a and b.Desire is processed into shape as shown in Figure 2 respectively to this side a and b, and present this type of workpiece of prior art processing all carries out at Pu Cheshang.The main process of general this type of workpiece of Vehicle Processing is: at first clamp the A end place of axle with the soft pawl of general car, then the B end is processed.Then workpiece is unloaded, reexamine the axiality of A end and B end, qualified with the axiality of B end like the A end, hold A and process at the B end place of then clamping axle with soft pawl again.Treat to unload the axiality that workpiece reexamines A end and B end after the A end processes, up to meeting the demands.

But, adopt above-mentioned general car device that workpiece is processed, need this workpiece is carried out clamping twice; And need carry out the measurement of twice axiality; In the process of measuring axiality, often there is very big error, therefore, causes a part of workpiece to require to scrap more because of axiality does not reach; Thereby the increase production cost, and production efficiency is very low.

Summary of the invention

The object of the invention is to provide a kind of anchor clamps, and the error that inserts and puts in the prior art is big, production cost is high and inefficient technical problem to solve.

For realizing above-mentioned purpose, according to an aspect of the present invention, a kind of anchor clamps are provided; Anchor clamps comprise that fixed disk and compartment of terrain are fixedly installed in first bearing and second bearing of fixed disk, and anchor clamps also comprise revolving part, and revolving part rotatably is fixedly installed between first bearing and second bearing; Wherein, Revolving part comprises the first side wall, second sidewall, the 3rd sidewall and the 4th sidewall, and the first side wall is relative with second sidewall, and is provided with the accommodation hole of a hollow between the first side wall and second sidewall; The workpiece of treating clamping is installed in the accommodation hole, and the first side wall and second sidewall relatively are respectively arranged with locating piece and compact heap, and locating piece and compact heap are replaced first section and second section of workpiece respectively; The 3rd sidewall of revolving part is relative with the 4th sidewall, and the 3rd sidewall and the 4th sidewall are respectively arranged with first supporting screw and second supporting screw with staggering, and first supporting screw and second supporting screw are resisted against the upper side and the bottom side of workpiece respectively.

Further, first bearing is provided with first installing hole that runs through; Second bearing is provided with second installing hole that runs through; The first side wall of revolving part and second sidewall are respectively arranged with first installation portion and second installation portion, and first installation portion and second installation portion movable sleeve respectively place in first installing hole and second installing hole.

Further, first installation portion and second installation portion are provided with respectively and connect first axis hole and second axis hole that connects accommodation hole coaxially, and locating piece and compact heap are connected with first axis hole and the second axis hole adjustable ground respectively.

Further; Locating piece comprises the first V-type location division and is connected in first connecting portion of the first V-type location division; First connecting portion is sheathed in first axis hole after passing the first side wall, expose to the first side wall to the first V-type location division backstop, and first end of workpiece is replaced in the first V-type location division.

Further, first axis hole, one first dog screw that has been threaded, first dog screw compresses first connecting portion.

Further, the end face of first connecting portion is formed with one first groove, and first dog screw fixedly presses in first groove.

Further; Compact heap comprises the second V-type location division and is connected in second connecting portion of the second V-type location division; Second connecting portion is sheathed in second axis hole after passing second sidewall, expose to second sidewall to the second V-type location division backstop, and the second V-type location division is resisted against second end of workpiece.

Further, second axis hole, one second dog screw that has been threaded, second dog screw compresses second connecting portion.

Further, the end face of second connecting portion is formed with one second groove, and second dog screw fixedly presses in second groove.

Further, anchor clamps also comprise operating parts, and operating parts comprises a guide, and guide penetratingly is fixedly installed in second bearing, and operating parts also comprises a positioning rod, and backstay operationally is sheathed in the guide; Second sidewall of revolving part is respectively arranged with the first access and the second adjustment hole in the both sides of second installation portion, the backstay in the guide operationally is sheathed on the first access or the second adjustment hole.

Further, guide comprises an end wall, and backstay comprises a head and is connected in the contraction section of head; Contraction section is equipped with an elastic, and the backstay that is equipped with elastic runs through end wall, and the two ends of elastic elasticity are respectively replaced between end wall and head.

The present invention has following beneficial effect:

Through the present invention, can improve the machining accuracy of workpiece, the part scrappage reduces, and reduces production costs simultaneously and enhances productivity, and realizes producing in batches.

Except top described purpose, feature and advantage, the present invention also has other purpose, feature and advantage.To do further detailed explanation to the present invention with reference to figure below.

Description of drawings

The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the processed preceding structural representation of part in the background technology;

Fig. 2 is the structural representation of the part among Fig. 1 after processed;

Fig. 3 is the generalized section of the anchor clamps of the preferred embodiment of the present invention;

Fig. 4 is the structural representation of first bearing of the preferred embodiment of the present invention;

Fig. 5 is the structural representation of second bearing of the preferred embodiment of the present invention;

Fig. 6 is the structural representation of the revolving part of the preferred embodiment of the present invention;

Fig. 7 is the structural representation of the locating piece of the preferred embodiment of the present invention;

Fig. 8 is the structural representation of the compact heap of the preferred embodiment of the present invention;

Fig. 9 is the structural representation of the guide of the preferred embodiment of the present invention;

Figure 10 is the structural representation of the backstay of the preferred embodiment of the present invention; And

Figure 11 is the structural representation that the anchor clamps of the preferred embodiment of the present invention are used for fixing workpiece to be machined.

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.

Referring to Fig. 3, anchor clamps comprise fixed disk 1, are set with first bearing 2 and second bearing 3 on the fixed disk 1 symmetrically.In order fixed disk 1 to be installed on lathe (figure does not show), the position, center of fixed disk 1 is provided with a circular hole 14, and secure fit has a lining 16 in this circular hole 14.

Please combine referring to Fig. 4, first bearing 2 comprises first fixed edge 21, and these first fixed edge, 21 bendings have extended to form one first installation limit 23.The first installation limit 23 is perpendicular to first fixed edge 21.The lateral wall on the first installation limit 23 is provided with one first boss 231, and the first installation limit 23 is provided with first installing hole 233 that runs through this first boss 231.

Please combine referring to Fig. 5, second bearing 3 comprises second fixed edge 31, and these second fixed edge, 31 bendings have extended to form one second installation limit 33.The second installation limit 33 is perpendicular to second fixed edge 31.The lateral wall on the second installation limit 33 is provided with one second boss 331, and the second installation limit 33 is provided with second installing hole 333 that runs through this second boss 331.The second installation limit 33 also is provided with the handle hole 335 and the first guide screw thread fixing hole 337 that runs through this second installation limit 33, and handle hole 335 and the first guide screw thread fixing hole 337 are positioned at the same side of second boss 331.

Please refer again to Fig. 3, first fixed edge 21 and second fixed edge 31 are fixedly mounted on fixed disk 1.Preferably, in this embodiment, fixed disk 1 is provided with a plurality of threaded mounting holes, and first fixed edge 21 and second fixed edge 31 are respectively arranged with and the corresponding first screw thread fixing hole of threaded mounting hole and the second screw thread fixing hole.The first screw thread fixing hole is connected with the corresponding threaded mounting hole of the first screw thread fixing hole through first screw 11; The second screw thread fixing hole is connected with the corresponding threaded mounting hole of the second screw thread fixing hole through second screw 13, thereby first bearing 2 and second bearing 3 are fixedly installed in fixed disk 1 symmetrically.Be provided with a revolving part 4 between first bearing 2 and second bearing 3.

Please combine referring to Fig. 6, revolving part 4 comprises the first side wall, second sidewall, the 3rd sidewall and the 4th sidewall, and wherein, the first side wall is relative with second sidewall, and the 3rd sidewall is relative with the 4th sidewall.Be provided with the accommodation hole 401 of a hollow between the first side wall and second sidewall.Preferably, this accommodation hole 401 is step-like hole.The first side wall of revolving part 4 is vertically installed with first installation portion 41, and the first side wall be provided with one run through first installation portion 41 first axis hole 411.First axis hole 411 is positioned at one section of first installation portion 41 and is thread segment.First axis hole 411 connects with the big nose end of accommodation hole 401.Second sidewall of revolving part 4 is vertically installed with second installation portion 43 coaxial with first installation portion 41, and second sidewall be provided with one run through second installation portion 43 second axis hole 431.Second axis hole 431 is positioned at one section of second installation portion 43 and is thread segment.Second axis hole 431 connects with the small bore end of accommodation hole 401.Second sidewall of revolving part 4 also is provided with the first access 40 and the second adjustment hole 42, and the first access 40 and the second adjustment hole 42 are distributed in the both sides of second installation portion 43 symmetrically.First installation portion 41 of revolving part 4 and second installation portion 43 are sheathed on respectively in second installing hole 333 of first installing hole 233 and second bearing 3 of first bearing 2 versatilely.Revolving part 4 the 3rd sidewall and the 4th sidewall are respectively arranged with adjustable first supporting screw 44 and second supporting screw 49 that staggers, and first supporting screw 44 and second supporting screw 49 are positioned at same plane.Adjustable ground is provided with locating piece 45 and compact heap 47 respectively in first axis hole 411 of revolving part 4 and second axis hole 431.

Please combine referring to Fig. 7, locating piece 45 comprises the first V-type location division 451 and is connected in first connecting portion 455 of the first V-type location division 451.The first V-type location division 451 is provided with one first convex shoulder 453.The free-ended end face of first connecting portion 455 is formed with one first groove 457.First connecting portion 455 radially is provided with first pin hole 459, and the part of this first pin hole 459 belongs to first groove 457.The big nose end of locating piece 45 from accommodation hole 401 pushed in first axis hole 411 of first installation portion 41, and first convex shoulder, 453 backstops, the first V-type location division 451 of locating piece 45 enters in first axis hole 411.First connecting portion 455 of locating piece 45 is sheathed in first axis hole 411 of first installation portion 41 versatilely.Because of first installation portion 41 is sheathed in first installing hole 233 of first bearing 2 versatilely, first dog screw 46 is threadedly connected to the thread segment of first axis hole 411 of first installation portion 41.First dog screw 46 comprises first head of screw 461.First dog screw 46 is sheathed in first axis hole 411 of first installation portion 41 from outside to inside, and then first head of screw 461 is sheathed in first groove 457 of first connecting portion 455 of locating piece 45.The sidewall of first head of screw 461 is provided with the first recessed circle 463.First pin hole 459 that this first recessed circle 463 and locating piece 45 are provided with over against.First pin 450 is arranged in first pin hole 459, is used for backstop first dog screw 46.

Please combine referring to Fig. 8, compact heap 47 comprises the second V-type location division 471 and is connected in second connecting portion 475 of the second V-type location division 471.The second V-type location division 471 is provided with one second convex shoulder 473.The free-ended end face of second connecting portion 473 is formed with one second groove 477.Second connecting portion 475 radially is provided with second pin hole 479, and the part of this second pin hole 479 belongs to second groove 477.The small bore end of locating piece 47 from accommodation hole 43 pushed in second axis hole 431 of second installation portion 43, and second convex shoulder, 473 backstops, the second V-type location division 471 of locating piece 47 enters in second axis hole 431.Second connecting portion 475 of locating piece 47 is sheathed in second axis hole 431 of second installation portion 43 versatilely.Because of second installation portion 43 is sheathed in second installing hole 233 of second bearing 3 versatilely, second dog screw 48 is threadedly connected to the thread segment of second axis hole 431 of second installation portion 43.Second dog screw 48 comprises second head of screw 481.Second dog screw 48 is sheathed in second axis hole 431 of second installation portion 43 from outside to inside, and then second head of screw 481 is sheathed in second groove 477 of second connecting portion 475 of compact heap 47.The sidewall of second head of screw 481 is provided with the second recessed circle 483.Second pin hole 479 that this second recessed circle 483 and compact heap 47 are provided with over against.Second pin 470 is arranged in second pin hole 479, is used for backstop second dog screw 48.The second V-type location division 471 of compact heap 47 and the first V-type location division 451 of locating piece 45 over against.

After revolving part 4 is installed between first bearing 2 and second bearing 3, the first access 40 of the handle hole on the second installation limit 31 of second bearing 3 335 and revolving part 4 over against.The second installation limit 31 is installed with a guide 5.

Please combine referring to Fig. 9, guide 5 comprises an end wall 53 and guide hole 55.End wall 53 is provided with a through hole, and guide hole 55 connects with through hole.Movable sleeve is equipped with a positioning rod 57 in the guide 5.

Please combine referring to Figure 10, backstay 57 comprises a head 571 and is connected in the contraction section 573 of head 571.Contraction section 573 be provided with one radially run through sidewall locating hole 572.The sidewall of guide 5 is provided with the 3rd convex shoulder 51, the three convex shoulders 51 and is provided with the second guide screw thread fixing hole 511.The sidewall of guide 5 is provided with the 3rd convex shoulder 51, the three convex shoulders 51 and is provided with the second guide screw thread fixing hole 511.In this embodiment, guide 5 and backstay 57 have constituted the operating parts of anchor clamps of the present invention.

Please combine referring to Figure 11, be equipped with an elastic 574 at contraction section 573.Preferably, this elastic 574 is a spring.The contraction section that is equipped with elastic 574 573 is passed the through hole that guide hole 55 and end wall 53 is provided with successively, and contraction section 573 is provided with a section of locating hole 572 and exposes to guide 5.Locating hole 572 places of contraction section 573 are provided with a gear-stopping bar 570, move in guide 5 with backstop contraction section 573.The two ends of elastic 574 that are placed on contraction section 573 are respectively flexibly in the wall of the head 571 of the end wall of replacing guide 5 53 and backstay 57.The free end of contraction section 573 is installed with a lever 59.The head 571 of the backstay that is nested with in the guide 5 57 is placed on the handle hole 335 on the second installation limit 31 and the first access 40 of revolving part 4 successively.The first guide screw thread fixing hole 337 that this second guide screw thread fixing hole 511 and the second installation limit 31 are provided with over against.Be screwed into the second guide screw thread fixing hole 511 and the first guide screw thread fixing hole 337 successively with guide hold-down screw 50, thereby guide 5 is fixedly installed in second fixed edge 31 of second bearing 3.

Please refer again to Figure 11, below the main process of setting forth anchor clamps processing parts of the present invention.The workpiece 7 of treating clamping comprises one 71 and is vertically connected at this afterbody of 71 73.Axle 71 comprises first end and second end.The axle 71 of workpiece 7 is fixedly installed in the accommodation hole 401 perpendicular to revolving part 4, and first end is towards the outside of accommodation hole 401.Particularly; Tighten first dog screw 46 and second dog screw 48; First dog screw 46 and second dog screw 48 make locating piece 45 and compact heap 47 workpiece pressings 7 respectively; At this moment, axle 71 presses on the V-type groove of the first V-type location division 451 of locating piece 45, and afterbody 73 presses on the V-type groove of the second V-type location division 471 of compact heap 47.Then, regulate first supporting screw 44 and second supporting screw 49 respectively, make win supporting screw 44 and second supporting screw 49 from the upper side and the downside of the afterbody 73 of both direction workpiece pressing 7 up and down.Then; The head 571 of backstay 57 is placed on because of the elastic force effect of elastic 574 in the first access 40 of handle hole 335 and revolving part 4 on the second installation limit 31 successively, thereby the revolving part 4 that workpiece 7 will be installed is fixed between first bearing 2 and second bearing 3.Then, make that the center of anchor clamps is coaxial with the center of lathe, again first end of workpiece 7 is processed.After processing first end,, backstay 57 is extracted out in the first access 40 of the handle hole 335 on the second installation limit 31 and revolving part 4 through operating operation handle 59 outward.At this moment, elastic 574 is in compressive state.Then, operate first supporting screw 44 and second supporting screw 49, first supporting screw 44 and second supporting screw 49 are all rotated around the axle center of fixed disk 1, and mutual reversing of position.At this moment, driven rotary part 4 has rotated 180 °.Decontrol lever 59 again, the head 571 of backstay 57 is placed on because of the elastic force effect of elastic 574 in the first access 40 of handle hole 335 and revolving part 4 on the second installation limit 31 successively, reprocesses second end of workpiece 7 at last.

Can know by above process, the processing that is similar to workpiece 7 need not to carry out clamping twice, and need not to carry out the measurement of twice axiality.Therefore, significantly reduced manufacturing tolerance, improved the machining accuracy of part, and improved production efficiency, realized producing in batches.

The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. anchor clamps; It is characterized in that; Said anchor clamps comprise that fixed disk (1) and compartment of terrain are fixedly installed in first bearing (2) and second bearing (3) of said fixed disk (1), and said anchor clamps also comprise revolving part (4), and said revolving part (4) rotatably is fixedly installed between said first bearing (2) and said second bearing (3); Wherein

Said revolving part (4) comprises the first side wall, second sidewall, the 3rd sidewall and the 4th sidewall, and said the first side wall is relative with said second sidewall, and is provided with the accommodation hole (401) of a hollow between said the first side wall and said second sidewall;

The workpiece (7) of treating clamping is installed in the said accommodation hole (401); Said the first side wall and said second sidewall relatively are respectively arranged with locating piece (45) and compact heap (47), and said locating piece (45) and compact heap (47) are replaced first section and second section of said workpiece (7) respectively;

Said the 3rd sidewall of said revolving part (4) is relative with said the 4th sidewall; Said the 3rd sidewall and said the 4th sidewall are respectively arranged with first supporting screw (44) and second supporting screw (49) with staggering, and said first supporting screw (44) and second supporting screw (49) are resisted against the upper side and the bottom side of said workpiece (7) respectively.

2. anchor clamps according to claim 1 is characterized in that, said first bearing (2) is provided with first installing hole (233) that runs through;

Said second bearing (3) is provided with second installing hole (333) that runs through;

The said the first side wall of said revolving part (4) and said second sidewall are respectively arranged with first installation portion (41) and second installation portion (43), and said first installation portion (41) and said second installation portion (43) movable sleeve respectively place in said first installing hole (233) and said second installing hole (333).

3. anchor clamps according to claim 2; It is characterized in that; Said first installation portion (41) and said second installation portion (43) are respectively arranged with and connect first axis hole (411) and second axis hole (431) that connects said accommodation hole (401) coaxially, and said locating piece (45) and said compact heap (47) are connected with said first axis hole (411) and said second axis hole (431) adjustable ground respectively.

4. anchor clamps according to claim 3; It is characterized in that; Said locating piece (45) comprises the first V-type location division (451) and is connected in first connecting portion (455) of the said first V-type location division (451); Said first connecting portion (455) is sheathed in said first axis hole (411) after passing said the first side wall, expose to said the first side wall to said first V-type location division (451) backstop, and first end of said workpiece (7) is replaced in the said first V-type location division (451).

5. anchor clamps according to claim 4 is characterized in that, said first axis hole (411) one first dog screw (46) that has been threaded, and said first dog screw (46) compresses said first connecting portion (455).

6. anchor clamps according to claim 4 is characterized in that, the end face of said first connecting portion (455) is formed with one first groove (457), and said first dog screw (46) fixedly presses in said first groove (457).

7. anchor clamps according to claim 4; It is characterized in that; Said compact heap (47) comprises the second V-type location division (471) and is connected in second connecting portion (475) of the said second V-type location division (471); Said second connecting portion (475) is sheathed in said second axis hole (431) after passing said second sidewall, expose to said second sidewall to said second V-type location division (471) backstop, and the said second V-type location division (471) is resisted against second end of said workpiece (7).

8. anchor clamps according to claim 7 is characterized in that, said second axis hole (431) one second dog screw (46) that has been threaded, and said second dog screw (46) compresses said second connecting portion (475).

9. anchor clamps according to claim 7 is characterized in that, the end face of said second connecting portion (475) is formed with one second groove (475), and said second dog screw (48) fixedly presses in said second groove (477).

10. anchor clamps according to claim 2; It is characterized in that; Said anchor clamps also comprise operating parts, and said operating parts comprises a guide (5), and said guide (5) penetratingly is fixedly installed in said second bearing (3); Said operating parts also comprises a positioning rod (57), and said backstay (57) operationally is sheathed in the said guide (5);

Said second sidewall of said revolving part (4) is respectively arranged with the first access (40) and the second adjustment hole (42) in the both sides of said second installation portion (43), the said backstay (57) in the said guide (5) operationally is sheathed on said the first access (40) or the said second adjustment hole (42).

11. anchor clamps according to claim 10 is characterized in that, said guide (5) comprises an end wall (53), and said backstay (57) comprises a head (571) and is connected in the contraction section (573) of said head (571);

Said contraction section (573) is equipped with an elastic (574), and the said backstay (57) that is equipped with said elastic (574) runs through said end wall (53), and the two ends of said elastic (574) elasticity are respectively replaced between said end wall (53) and said head (571).