The linkage structure of a kind of clamp and bearing
Technical field
The invention belongs to Fixture Design technical field, particularly relate to the linkage structure of a kind of clamp and bearing.
Background technique
In fixture, the Placement of conventional clamp and bearing adopts fork ear-pole connection structure.When the upper and lower fixture of product and riveted joint, clamp often need to be opened, and the positioning dowel that connects clamp and bearing must be just dismountable, the positioning hole that weares and teares while preventing because of frequent dismounting pin, and stationary bushing will be installed by pin place.In the past, lining is selected common stationary bushing, in long-term using process, stationary bushing on clamp and bearing is easy play on lining axial direction just, a part for the lining of bearing is channeled in clamp, or a part for clamp lining channels in bearing, clamp will not opened like this, sometimes even causes the product can not undercarriage.
Clamp can not be opened, can cause product can not be on fixture undercarriage, serious consequence can cause product rejection or a whole set of fixture all will scrap.So just cause very large economic loss, also can affect manufacturing schedule simultaneously.
Summary of the invention
The technical problem to be solved in the present invention:
In order to prevent the generation of above-mentioned situation, design a kind of linkage structure with the special-purpose stationary bushing of shoulder.
Technological scheme of the present invention:
A linkage structure for clamp and bearing, comprises bearing 1, clamp 2, the first lining 3, the second lining 4, the 3rd lining 5 and pin 6.Wherein, clamp 2 is stuck in bearing 1, and the first lining 3 and the 3rd lining 5 are arranged in the hole on bearing 1, and the second lining 4 is arranged in the hole on clamp 2, and the first lining 3, the second lining 4 and the 3rd lining 5 are coaxial, and pin 6 is through three above-mentioned linings; The first lining 3 and the 3rd lining 5 be at one end, outside of bearing 1 band shoulder, and the second lining 4 is at one end, outside of clamp 2 band shoulder, and the shoulder of the second lining 4 is arranged in the counter sink in outside of clamp 2.
The shoulder of the second lining 4 is also arranged in the counter sink in outside of clamp 2 by screw 7.
Beneficial effect of the present invention:
Use this linkage structure can be applied to the position that all clamps are connected with bearing, both protected product can, because not scrapping by undercarriage, also can need not scrap by protecting tool set-up.Avoid because scrapping the economic loss producing and affecting manufacturing schedule.
Accompanying drawing explanation
Fig. 1 is the linkage structure schematic diagram of existing clamp and bearing;
Fig. 2 is schematic diagram of the present invention, and wherein, 1 is bearing, and 2 is clamp, and 3 is the first lining, and 4 is the second lining, and 5 is the 3rd lining, and 6 is pin, and 7 is screw.
Embodiment
The linkage structure of a kind of clamp and bearing, comprise bearing 1, clamp 2, the first lining 3, the second lining 4, the 3rd lining 5 and pin 6, wherein, clamp 2 is stuck in bearing 1, the first lining 3 and the 3rd lining 5 are arranged in the hole on bearing 1, the second lining 4 is arranged in the hole on clamp 2, and the first lining 3, the second lining 4 and the 3rd lining 5 are coaxial, and pin 6 is through three above-mentioned linings; The first lining 3 and the 3rd lining 5 are takeed at one end, outside of bearing 1 band, the second lining 4 is takeed at one end, outside of clamp 2 band, the structural type of band shoulder can guarantee that lining can play on its axial direction, and the shoulder of the second lining 4 is arranged in the counter sink in outside of clamp 2.
The shoulder of the second lining 4 is also arranged in the counter sink in outside of clamp 2 by screw 7.
For prevent product can not undercarriage or the fixture situation of scrapping occur, the stationary bushing on bearing 1 changes the first lining 3 and the 3rd lining 5 into, the stationary bushing on clamp 2 changes the second lining 4 into, and tightens on clamp 2 with screw 7.Bearing 1 is in the outside of clamp 2, the first lining 3 and the 3rd lining 5 are installed at the position of positioning hole place of bearing 1, the shoulder of the first lining 3 and the 3rd lining 5 is in bearing 1 outside, in slotting or the nail 6 of pulling pin, the first lining 3 and the 3rd lining 5 just can not channel in clamp 2 and go, and can not cause clamp 2 not opened.Clamp 2 is in the inner side of bearing 1, the second lining 4 is installed at positioning hole place equally, on clamp 2, positioning hole place is beaten as counter sink, countersunk head hole depth is greater than the shoulder height of the second lining 4, on the second lining 4, there are two counter sinks, each installs a screw 7, and this structure can not make can not channel in bearing 1 and go at slotting or nail 6: second linings 4 of pulling pin, and can not cause equally clamp 2 not opened.
During installation, the first lining 3 and the 3rd lining 5 are installed to respectively in bearing 1 on request, and the second lining 4 is installed in clamp 2, and screw 7 is tightened in two counter sinks on the second lining 4, complete assembling.By the linkage structure of this clamp and bearing, there will not be the second lining 4 of clamp 2 to channel in bearing 1, or the first lining 3 in bearing 1 and the 3rd lining 5 channel in clamp, the situation that causes clamp 2 not open has also played the most basic positioning action simultaneously.