A positioning device for center hole machining of precision forged bevel gears
A technology of bevel gears and positioning devices, which is applied in the direction of positioning devices, metal processing equipment, metal processing machinery parts, etc.
Inactive Publication Date: 2021-07-06
JILIN UNIV
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to overcome the positioning problem existing in the prior art when processing the center hole of the precision plastic formed bevel gear, and to provide a positioning device for the center hole processing of the precision forged bevel gear
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Embodiment Construction
[0032]The present invention is described in detail below in conjunction with accompanying drawing:
[0033] The purpose of the present invention is to provide a positioning device for precision forging bevel gear center hole processing, which includes a base 1, a washer 2, a guide sleeve 3, a return spring 4, a ball 5, a thin-walled cylinder 6, and an initial positioning tooth mold 8. Pressure ring 9, No. 2 pin 10, No. 1 bolt 11, No. 2 bolt 12 and No. 1 pin 13.
[0034] refer to Figure 5 , the large end of each tooth of the precision forged bevel gear 7 is a partial cylinder, the partial cylinders at the large end of these teeth are the same, their gyration radii are equal, and the centerlines of the partial cylinders at the large end of these teeth are collinear, And it is collinear with the rotation center line of precision forged bevel gear 7; the cylindrical surfaces of all the partial cylinders are on a cylindrical surface, the profile degree is higher than 0.01 mm, and...
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The invention discloses a positioning device for machining the center hole of precision forging bevel gears. In order to overcome the problem of machining and positioning the center hole of precision forging bevel gears, it includes a base, a washer, a guide sleeve, a return spring, a ball, a thin-walled cylinder, an initial Positioning tooth mold and pressure ring; the washer is fixed on the base, the guide sleeve is fixed on the washer, the base, the washer and the guide sleeve are coaxial; the return spring is placed in the washer, and the initial positioning tooth mold is installed in the center circle of the guide sleeve The bottom end of the initial positioning tooth-shaped die is in contact with the top of the return spring. The thin-walled cylindrical tube with balls is installed between the circular inner hole wall in the center of the guide sleeve and the cylinder at the lower end of the initial positioning tooth-shaped die. The center of the guide sleeve The circular inner hole wall and the cylinder at the lower end of the initial positioning tooth-shaped die are in contact with the balls on the outside and the inside at the same time; the precision forged bevel gear is installed on the initial positioning tooth-shaped mold, and the part of the cylinder and the ball at the large end of the precision forged bevel gear tooth are in contact with the ball. Side contact, the pressure ring is installed on the precision forged bevel gear.
Description
technical field [0001] The invention relates to a clamping device for machining, more precisely, the invention relates to a clamping and positioning device for machining the center hole of precision forging conical gear forgings. Background technique [0002] Gear is a kind of important transmission parts, which is used to transmit motion and power between space axes. It has the advantages of stable transmission and wide application range. With the rapid development of machinery manufacturing industry, the requirements for gear precision are getting higher and higher. The coaxiality between the center line of the center hole of the gear and the corresponding coordinate axis of the gear profile is one of the important parameters affecting the motion accuracy and noise of the gear. [0003] One of the processing methods of bevel gears is to use precision plastic forming to shape the tooth shape, and then perform chip removal processing on the center hole and some non-toothed ...
Claims
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IPC IPC(8): B23Q3/06
CPCB23Q3/062
Inventor 李东成杨晓红刘化民马赫
Owner JILIN UNIV