CN-121973124-A - Positioning device and positioning method for cam double-roller output shaft

CN121973124ACN 121973124 ACN121973124 ACN 121973124ACN-121973124-A

Abstract

The application discloses a positioning device and a positioning method for a cam double-roller output shaft, and relates to the technical field of positioning tools, wherein the positioning device comprises a pressing plate, and fixing holes allowing the output shaft to pass through are respectively formed in two ends of the pressing plate in the length direction; the device comprises a support piece, a lug, an adjusting bolt and a screw thread, wherein the middle part of the support piece is provided with a U-shaped groove matched with a pressing plate, the pressing plate is hinged in the U-shaped groove, the lug is arranged in the middle part of the support piece and is close to one of the fixing holes, and the adjusting bolt is threaded on the lug. Before the position of an actuating mechanism is adjusted, the rollers on the two output shafts are respectively pressed to the two working surfaces of the cam and locked in the axial positions by utilizing opposite acting forces generated by driving the two ends of the pressing plate through the adjusting bolts, after the mounting bracket is adjusted to the target position and locked again, the positioning device is released, so that the axial movement of the output shafts caused by loosening the mounting bracket can be avoided, the theoretical contact points of the double rollers and the cam are prevented from being deviated, the pre-calibrated movement phase is further maintained, and the running stability of equipment is improved.

Inventors

ZHANG HAO
WU SHIXI
JIANG XIAOWEI
YU BIN
YANG LEI
YANG ZHOU
XU ANXU
ZHANG MINGSHUANG
Yue Shaodong
Dou shan
LIU BING
SONG WEIDONG

Assignees

红云红河烟草(集团)有限责任公司

Dates

Publication Date: 20260505
Application Date: 20260320

Claims (10)

1. A positioning device for a cam double-roller output shaft, comprising: The two ends of the pressing plate (1) in the length direction are respectively provided with a fixed hole (2) for allowing the output shaft (15) to pass through; the middle part of the support piece (3) is provided with a U-shaped groove (4) matched with the pressing plate (1), and the pressing plate (1) is hinged in the U-shaped groove (4); The convex block (5) is arranged in the middle of the supporting piece (3) and is close to one of the fixing holes (2); the adjusting bolt is threaded on the protruding block (5) and used for enabling the adjusting bolt to abut against the corresponding end of the pressing plate (1) through rotation, so that acting forces with opposite directions are generated at the two ends of the pressing plate (1).
2. The positioning device for the cam double-roller output shaft according to claim 1, wherein the middle part of the pressing plate (1) is provided with a hinge part (6), the hinge part (6) is provided with a hinge hole (7) allowing a hinge shaft to pass through along the axial direction of the hinge part, the hinge part (6) is provided with a screw hole (8) for installing a set screw along the radial direction of the hinge part, the screw hole (8) is mutually communicated with the hinge hole (7), and the axes of the screw hole and the hinge hole are perpendicular.
3. The positioning device for a cam double-roller output shaft according to claim 2, characterized in that the support member (3) is provided with a shaft hole (9) along its length direction, which allows the passage of the hinge shaft, and the shaft hole (9) corresponds to the hinge hole (7).
4. A positioning device for a cam double-roller output shaft according to claim 3, characterized in that the lug (5) is provided with a threaded adjusting hole (10) which is matched with the adjusting bolt along the thickness direction, and the axis of the threaded adjusting hole (10) is perpendicular to the different plane of the axis of the shaft hole (9).
5. The positioning device for a cam double-roller output shaft according to claim 1, characterized in that the fixing hole (2) is an oblong hole, the long axis of which extends along the length direction of the pressing plate (1), and the short axis of which is sized to fit the diameter of the output shaft (15).
6. The positioning device for a cam double-roller output shaft according to claim 5, characterized in that the output shaft (15) has a threaded section at the end, which is locked by a nut after passing through the fixing hole (2).
7. Positioning device for a cam double roller output shaft according to claim 2, characterized in that the cam (5) is integrally formed with the support (3), the pressure plate (1) being integrally formed with the hinge (6).
8. The positioning device for a cam double-roller output shaft according to claim 1, characterized in that the U-shaped groove (4) is a right-angle U-shaped groove.
9. A positioning method, characterized in that it is applied to a positioning device according to any one of claims 1 to 8, said positioning method comprising: Penetrating the two output shafts (15) into the corresponding fixing holes (2) along the thickness direction of the pressing plate (1), and locking the output shafts (15) and the pressing plate (1); The adjusting screw is screwed in along the thickness direction of the protruding block (5) so that the end part of the adjusting screw contacts and abuts against the corresponding end surface of the pressing plate (1); Continuously screwing in the adjusting bolt, so that the end parts of the adjusting bolt are abutted against the corresponding end surfaces of the pressing plate (1), and opposite acting forces are generated at the two ends of the pressing plate (1) until the roller (13) at the end part of the output shaft (15) is tightly attached to the working surface of the cam (11) and cannot move along the axial direction; stopping screwing the adjusting bolt.
10. The positioning method according to claim 9, characterized in that after the roller (13) is in close contact with the working surface of the cam (11) and cannot move axially, it further comprises: unscrewing a clamping bolt (12) of a mounting bracket (14) on the output shaft (15) to release the fixed connection between the mounting bracket (14) and the output shaft (15); axially moving the mounting bracket (14) along the output shaft (15) to adjust the mounting bracket (14) to a target position so that the actuator is positioned at the target position; Tightening the clamping bolt (12) to fix the position of the mounting bracket (14) on the output shaft (15); and releasing the locking connection between the output shaft (15) and the pressing plate (1), unscrewing the adjusting bolt, and taking down the pressing plate (1), the supporting piece (3) and the adjusting bolt.

Description

Positioning device and positioning method for cam double-roller output shaft Technical Field The application relates to the technical field of positioning tools, in particular to a positioning device and a positioning method for a cam double-roller output shaft. Background The cam double-roller output shaft transmission is a mechanical transmission structure for converting continuous rotary motion into linear reciprocating motion, and the cam with a specific contour curve is driven to rotate by a motor, so that two rollers attached to a working surface of the cam are axially displaced along with the change of the contour of the cam, and further the output shaft connected with the rollers is driven to realize accurate linear reciprocating motion. Wherein, be provided with actuating mechanism on the output shaft through the installing support. The installation and maintenance debugging of such high precision transmission systems is critical, and usually involves two levels of calibration, namely a "motion phase" calibration, i.e. ensuring that the actuator starts and ends at the correct moment in the equipment cycle, and a "static position" calibration, i.e. adjusting the relative position or clearance between the actuator itself and its cooperating reference parts (such as guide rails, dies). In the conventional technology, the two calibrations are related to each other to form coupling interference. Specifically, when the static position of the actuating mechanism needs to be adjusted to loosen the mounting bracket, the output shaft which is rigidly connected with the actuating mechanism inevitably axially moves, so that the theoretical contact point of the double roller and the cam is deviated, the pre-calibrated motion phase is damaged, and the running stability of the equipment is reduced. Disclosure of Invention The application mainly aims to provide a positioning device and a positioning method for a cam double-roller output shaft, which aim to solve the technical problems of motion phase misalignment caused by axial movement of the output shaft and reduction of equipment operation stability when the static position of an actuating mechanism is adjusted. In order to achieve the above purpose, the present application provides the following technical solutions: A positioning device for a cam dual roller output shaft, comprising: The two ends of the pressing plate in the length direction are respectively provided with a fixing hole for allowing the output shaft to pass through; the middle part of the supporting piece is provided with a U-shaped groove matched with the pressing plate, and the pressing plate is hinged in the U-shaped groove; the convex block is arranged in the middle of the supporting piece and is close to one of the fixing holes; The adjusting bolt is threaded on the lug in a penetrating way and is used for enabling the adjusting bolt to be abutted against the corresponding end of the pressing plate through rotation, so that acting forces with opposite directions are generated at the two ends of the pressing plate. Optionally, the clamp plate middle part is equipped with the hinge, the hinge has offered the hinge hole that allows the articulated shaft to pass through along its axial, the hinge has offered the screw that is used for installing the holding screw along its radial, screw and hinge intercommunication each other, and the two axis is perpendicular. Optionally, the support member is provided with a shaft hole allowing the hinge shaft to pass through along a length direction thereof, and the shaft hole corresponds to the hinge hole. Optionally, the lug is provided with a threaded adjusting hole matched with the adjusting bolt along the thickness direction of the lug, and the axis of the threaded adjusting hole is perpendicular to the different surface of the axis of the shaft hole. Optionally, the fixing hole is an oblong hole, a long shaft of the fixing hole extends along the length direction of the pressing plate, and a short shaft of the fixing hole is matched with the diameter of the output shaft. Optionally, the end of the output shaft is provided with a threaded section, and the threaded section is locked by a nut after passing through the fixing hole. Optionally, the lug and the support are integrally formed, and the pressing plate and the hinge part are integrally formed. Optionally, the U-shaped groove is a right angle U-shaped groove. A positioning method applied to a positioning device as described above, the positioning method comprising: penetrating the two output shafts into corresponding fixing holes along the thickness direction of the pressing plate, and locking the output shafts and the pressing plate; screwing in an adjusting screw along the thickness direction of the lug so that the end part of the adjusting screw contacts and abuts against the corresponding end surface of the pressing plate; Continuously screwing in the adjusting bolt, so that the end parts of