CN201275692Y

CN201275692Y - Special fixture for drilling pin roll

Info

Publication number: CN201275692Y
Application number: CN 200820173084
Authority: CN
Inventors: 刘界环; 聂云亭; 桂林三; 于龙春
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2008-10-17
Filing date: 2008-10-17
Publication date: 2009-07-22
Anticipated expiration: 2018-10-17

Abstract

The utility model discloses a special fixture for the drilling of a pin shaft. The special fixture is provided aiming at overcoming the disadvantages of clamping the pin shaft by a bench clamp to drill holes on a drilling machine at present that the rejection rate is high, the operation is labor-wasting and time-wasting, the labor intensity is high, the working efficiency is low and the working is not safe. On a clamping seat which can be fixed on a worktable of the drilling machine, a pin-penetrating hole which can be just penetrated through by the pin shaft to be processed is arranged parallel to the surface of the worktable, and a rising/retracting groove which is communicated with the pin-penetrating hole is transversely opened at one radial side of the pin-penetrating hole; and a clamping bolt which can penetrate through the rising/retracting groove and can clamp the pin shaft in the pin-penetrating hole after being screwed down is arranged on the clamping seat. As the pin-penetrating hole is arranged on the clamping seat, the rising/retracting groove with the clamping bolt is arranged at one side of the pin-penetrating hole and the pin shaft is arranged in the pin-penetrating hole to screw down the clamping bolt, the contact area between the pin-penetrating hole and the pin shaft is large, the clamping force is strong, the drilling quality is high and the pin shaft cannot be damaged. Therefore, the assembling and disassembling of the pin shaft are labor-saving and time-saving, the working efficiency is high, and the operation is safe as well as convenient.

Description

Bearing pin boring special fixture

Technical field

The utility model belongs to anchor clamps, and specifically one is used for the circular bearing pin of clamping, convenient boring anchor clamps in the above.

Background technology

Hole on circular bearing pin at present, adopt usually earlier bench vice to be fixedly mounted on the workbench of drilling machine, the bar portion with bearing pin clamps with bench vice again, with the bit bore of clamping on the drilling machine.In practical operation, because vice jaw is flat, contact for line between jaw and the circular bearing pin during clamping, chucking power is just little like this, and when drill bit dropped to the bearing pin surface drilling, bearing pin can be movable because of clamping not strongly, do not notice that slightly boring can produce deflection, even the drill bit that fractures causes workpiece to scrap, even also can make bearing pin collapse to hurt sb.'s feelings in vice jaw, has potential safety hazard; If use too big power clamping, can damage the surface of bearing pin again; Moreover, rely on the jaw of bench vice to grip, also to carry out levelling to bearing pin, all to determine the position of holing at every turn, so hole time-consuming, labour intensity big, inefficiency, the percent defective height.

The utility model content

Technical problem to be solved in the utility model is, overcoming prior art holes on drilling machine with bench vice clamping bearing pin, chucking power macrolesion bearing pin, it is fixing not firm that chucking power is little, cause the percent defective height, and operate that time-consuming, labour intensity is big, inefficiency, unsafe shortcoming, a kind of bearing pin boring special fixture is provided.

In order to solve the problems referred to above that prior art exists, the utility model is to adopt following technical proposals to realize: on the grip slipper that can be fixed on the Drilling machines bench, parallel and work top is provided with the pinned hole that processed bearing pin is just passed, radially side at pinned hole laterally has the harmomegathus groove that communicates with pinned hole; Can clamp the fishbolt of bearing pin in the pinned hole after on grip slipper, being equipped with and passing the harmomegathus groove up and down, tightening.

The utility model also has following technical characterictic:

The installation of described fishbolt is on the grip slipper on harmomegathus groove top, vertically is drilled with bolt hole, the bottom of harmomegathus groove and the relative bolt hole that is provided with of mistake bolt hole, and fishbolt passed bolt hole, was screwed in the bolt hole of bottom;

The end of pinned hole pushes up on described grip slipper, vertically is provided with the screw of subtend pinned hole central point;

Described harmomegathus groove extends to another madial wall of pinned hole, and its elongated end and small sircle hole are communicated with, and the center line of small sircle hole and the center line of pinned hole are on same horizontal plane.

During use, earlier bearing pin is through in the pinned hole that is installed on grip slipper on the Drilling machines bench, tightens the fishbolt that passes the harmomegathus groove bearing pin is fixed, find and behind the position dimension of boring grip slipper to be fixed, can begin boring.In batch machining bearing pin when operation, repeat to tighten the boring of fishbolt dress bearing pin, bores to unscrew fishbolt after good and unload lower bearing pin and get final product.

Advantage of the present utility model and good effect are, owing on the grip slipper pinned hole that bearing pin is just passed is arranged, and a side of pinned hole has the harmomegathus groove of the tight bolt of strap clamp, after in bearing pin is installed in pinned hole, tightening fishbolt, because be the cambered surface contact between pinned hole and the bearing pin, contact area is big, clamping force is strong, the loosening phenomenon that occurs waste product with hole scattering can not take place, and does not damage the bearing pin surface yet.To the grip slipper one-time positioning, the batch machining pin shaft hole need not each centering, loading and unloading bearing pin workpiece saving of labor, save time, laborsaving, work efficiency is high, handling safety, convenience.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is the vertical view of Fig. 1.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Among Fig. 1, on the grip slipper 1 that can be fixed on the Drilling machines bench, be processed with horizontal pinned hole 4 parallel with work top and that bearing pin 2 is just passed, on the grip slipper 1 of the radially left side wall of pinned hole 4, laterally have the harmomegathus groove 7 that communicates with pinned hole 4, pass harmomegathus groove 7 being equipped with up and down of harmomegathus groove 7, can clamp the fishbolt 8 that bearing pin 2 is installed in the pinned hole 4 after tightening.

The fishbolt of installing on the described harmomegathus groove 78, be on the grip slipper 1 on harmomegathus groove 7 tops, vertically be drilled with bolt hole 9, on the grip slipper 1 of harmomegathus groove 7 bottoms, with the mistake bolt hole 9 relative bolts hole 10 that are provided with, top fishbolt 8 with the level, its upper step leans against grip slipper 1 top end face, the screw rod body of bottom passed bolt hole 9, was screwed in the bolt hole 10.Tighten fishbolt 8, the harmomegathus groove 7 of grip slipper 1 is pressed down with top, the bearing pins 2 that are through in the pinned hole 4 are clamped.

In order to make the fixing more firm of pinned hole 4 interior bearing pins 2, on the end top of pinned hole 4, be provided with the screw 5 of subtend pinned hole 4 central points on the described grip slipper 1.During operation, tighten fishbolt 8 earlier, the top is installed in housing screws 6 in the screw 5 again and tightens fixingly, bearing pin 2 trackslips in pinned hole 4 when preventing to hole.

In order to prevent because of having opened harmomegathus groove 7 on the grip slipper 1, in stepping up continually and loosening, produce stress and concentrate and make grip slipper 1 damage, Right Inboard wall with harmomegathus groove 7 extend through pinned holes 4, on its extended tip, be drilled with small sircle hole 3, and the center line that makes the center line of small sircle hole 3 and pinned hole 4 is on same horizontal plane.

Claims

1, a kind of bearing pin boring special fixture, it is characterized in that: on the grip slipper that can be fixed on the Drilling machines bench, parallel and work top is provided with the pinned hole that processed bearing pin is just passed, and the radially side at pinned hole laterally has the harmomegathus groove that communicates with pinned hole; Can clamp the fishbolt of bearing pin in the pinned hole after on grip slipper, being equipped with and passing the harmomegathus groove up and down, tightening.

2, bearing pin boring special fixture as claimed in claim 1, it is characterized in that: the installation of described fishbolt, be on the grip slipper on harmomegathus groove top, vertically be drilled with bolt hole, the bottom of harmomegathus groove and the relative bolt hole that is provided with of mistake bolt hole, fishbolt passed bolt hole, was screwed in the bolt hole of bottom.

3, bearing pin boring special fixture as claimed in claim 1 or 2, it is characterized in that: the end of pinned hole pushes up on described grip slipper, vertically is provided with the screw of subtend pinned hole central point.

4, bearing pin boring special fixture as claimed in claim 1, it is characterized in that: described harmomegathus groove extends to another madial wall of pinned hole, and its elongated end and small sircle hole are communicated with, and the center line of small sircle hole and the center line of pinned hole are on same horizontal plane.