Auxiliary drilling device
A technology of drilling device and drill sleeve, which is applied in the direction of drilling templates for workpieces, etc., can solve the problems of poor processing accuracy, slow processing speed, and low efficiency, and achieve the advantages of improved drilling efficiency, simple structure, and guaranteed accuracy. Effect
Inactive Publication Date: 2018-12-28
HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE
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Problems solved by technology
[0003] However, when parts such as the differential case are drilled by a drilling machine, the processing speed is slow, the efficiency is relatively low, and the processing accuracy is poor.
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[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0017] Such as figure 1 and figure 2 The shown auxiliary drilling device includes an annular body 1, and two groups of through holes are arranged on the body 1, wherein the diameter of one group of through holes is φ26, the diameter of the other group of through holes is φ31, and the diameter of the two groups of through holes is φ31. The holes are alternately arranged in pairs, and the center of the circle where they are located coincides with the center of the body 1. Two sets of drill sleeves after quenching and heat treatment are respectively provided in the two groups of through holes, and the outer set of drill sleeves is the first drill sleeve. Sleeve 2 has an inner diameter of φ17 and an outer diameter of φ26, and is set in the through hole of φ26 through interference fit. The inner set of drill sleeves is the second drill sleeve 3, w...
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The invention discloses an auxiliary drilling device. The auxiliary drilling device comprises a cylindrical body, two sets of through holes are formed in the body, the diameter of one set of through holes is phi 26, the hole diameter of the other set of through holes is phi 31, the two sets of through holes are arranged in a paired staggered mode, the circle centers of circles where the two sets of through holes are located coincide with the circle center of the body 1, the two sets of through holes are internally provided with two sets of drill bushings subjected to quenching heat treatment respectively, the set of drill bushings close to the outside are the first drill bushings 2, for each first drill bushing 2, the inner diameter is phi 17, the outer diameter is phi 26, moreover, each first drill bushing 2 is arranged in the corresponding through hole with the diameter being phi 26 in an interference fit mode, the set of drill bushings close to the inside are the second drill bushings, for each second drill bushing, the inner diameter is phi 27, the outer diameter is phi 31, moreover, each second drill bushing is arranged in the corresponding through hole with the diameter beingphi 31 in an interference fit mode, and positioning bolts cooperating with the inner diameter of the first drill bushings are arranged in the first drill bushings. The auxiliary drilling device has the advantages that the structure is simple, the efficiency of machining a left shell of a differential mechanism by a radial drilling machine can be improved, and meanwhile, the machining precision ishigh.
Description
technical field [0001] The invention belongs to the technical field of drilling machine accessories, in particular to an auxiliary drilling device. Background technique [0002] There are many parts on the car, and some parts need to be drilled, such as the differential in the car, which can make the left and right (or front and rear) drive wheels rotate at different speeds. mechanism. It is mainly composed of left and right side shaft gears, two planetary gears and a gear carrier. The function is to make the left and right wheels roll at different speeds when the car is turning or driving on an uneven road, that is, to ensure the pure rolling motion of the driving wheels on both sides. [0003] And when the parts such as the differential case are drilled by a drilling machine, the processing speed is slow, the efficiency is relatively low, and the processing accuracy is poor. Contents of the invention [0004] In order to overcome the disadvantages of the above-mention...
Claims
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Login to View More IPC IPC(8): B23B47/28
CPCB23B47/28
Inventor 万海
Owner HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE