CN-122007236-A - Combined cam stretcher

CN122007236ACN 122007236 ACN122007236 ACN 122007236ACN-122007236-A

Abstract

A combined cam stretcher comprises a base, an upper beam, an upright post, a main shaft, a driving mechanism, a cam transmission mechanism and a sliding block, wherein the upright post is detachably connected between the base and the upper beam, two ends of the main shaft are rotatably supported by the upper beam, the cam transmission mechanism is detachably arranged on the main shaft, one end of the main shaft is connected with the driving mechanism and driven by the driving mechanism, the sliding block comprises an upper sliding block and a lower sliding block, the upper sliding block is detachably connected with the cam transmission mechanism, the lower sliding block is fixed on the bottom plane of the upper sliding block, and a die upper die is arranged on the lower sliding block. Because base, upper beam, stand, main shaft, actuating mechanism, cam drive mechanism, slider all can dismantle, consequently, change stand, main shaft, actuating mechanism, cam drive mechanism, slider etc. according to actual conditions to improve the adaptability of product.

Inventors

ZHENG LIANGCAI
CHEN QUANJIAN
XU MENGGANG
QI QUANQUAN

Assignees

宁波精达成形装备股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260214

Claims (7)

1. A combined cam stretcher is characterized by comprising a base, an upper beam, an upright post, a main shaft, a driving mechanism, a cam transmission mechanism and a sliding block, wherein the upright post is detachably connected between the base and the upper beam, two ends of the main shaft are rotatably supported by the upper beam, the cam transmission mechanism is detachably arranged on the main shaft, one end of the main shaft is connected with the driving mechanism and driven by the driving mechanism, the sliding block comprises an upper sliding block and a lower sliding block, the upper sliding block is detachably connected with the cam transmission mechanism, the lower sliding block is fixed on the bottom plane of the upper sliding block, and a die upper die is arranged on the lower sliding block.
2. The combination cam stretcher of claim 1 wherein the upper end of the upright is threaded with an upper nut and the lower end is threaded with a lower nut, and tightening of the upper nut and the lower nut results in tightening of the upper beam and the base.
3. The cam stretcher of claim 1 wherein the middle part of the upright post is provided with a convex end, and the convex end surface is attached to the lower part of the upper beam and supports the upper beam.
4. The combined cam stretcher of claim 1, wherein the driving mechanism comprises a planetary reducer, a flywheel, an intermediate transmission mechanism and a motor, wherein the planetary reducer, the flywheel, the intermediate transmission mechanism and the motor are arranged on the main shaft, the motor is arranged on the upper beam, the intermediate transmission mechanism is arranged on an output shaft of the motor, the intermediate transmission mechanism is a belt pulley, the belt pulley and the flywheel are connected and transmitted through a belt, the planetary reducer is connected with the main shaft, and the flywheel is connected with the planetary reducer.
5. The combination cam stretcher of claim 1 wherein the driving mechanism comprises a planetary reducer and a servo motor, wherein the servo motor is arranged on the upper beam, an output shaft of the servo motor is connected with the planetary reducer, and the planetary reducer is connected with the main shaft.
6. The combined cam stretcher of claim 1, wherein the cam driving mechanism comprises a cam, an upper following wheel and a lower following wheel, the cam is arranged on the main shaft, the upper following wheel and the lower following wheel are respectively positioned at the upper part and the lower part of the cam, the upper following wheel and the lower following wheel are respectively supported by the sliding block in a rotating way, and the following wheels are always contacted with the cam, so that the sliding block is driven to move up and down to finish stretching.
7. The combined cam stretcher of claim 1, wherein the cam transmission mechanism comprises a conjugate cam, an upper follower wheel, a swinging rod, a first lower follower wheel and a second lower follower wheel, the conjugate cam comprises a driving cam and a driven cam, the driving cam and the driven cam are arranged on a main shaft, the upper follower wheel is rotatably supported by a sliding block, is positioned at the upper part of the driven cam and always contacts with the driven cam, the lower part of the swinging rod is rotatably supported by the sliding block, two fixed shafts are arranged at the upper part of the swinging rod, the first lower follower wheel and the second lower follower wheel are respectively rotatably supported by the fixed shafts, are positioned at the lower part of the driving cam and always contact with the driving cam, and the two lower follower wheels are symmetrically arranged relative to the central line of the driving cam.

Description

Combined cam stretcher Technical Field The invention relates to a cam stretcher. Background The cam stretcher is mechanical equipment for stretching materials by utilizing a cam mechanism, the existing cam stretcher generally comprises a machine base and a cam stretching mechanism, the cam stretching mechanism is fixed on the machine base, and due to the fixed connection, the cam stretching mechanism is limited by factors such as the height of the machine base, the fixed die height, the cam stretching mechanism and the like, and the applicability of the cam stretching mechanism is limited. Disclosure of Invention The invention aims to overcome the defects in the prior art and provide a combined cam stretcher which is high in adaptability. The technical scheme adopted for solving the technical problems is as follows: A combined cam stretcher is characterized by comprising a base, an upper beam, an upright post, a main shaft, a driving mechanism, a cam transmission mechanism and a sliding block, wherein the upright post is detachably connected between the base and the upper beam, two ends of the main shaft are rotatably supported by the upper beam, the cam transmission mechanism is detachably arranged on the main shaft, one end of the main shaft is connected with the driving mechanism and driven by the driving mechanism, the sliding block comprises an upper sliding block and a lower sliding block, the upper sliding block is detachably connected with the cam transmission mechanism, the lower sliding block is fixed on the bottom plane of the upper sliding block, and a die upper die is arranged on the lower sliding block. More specifically, the upper end spiro union upper nut of stand, lower extreme spiro union lower nut, through screw up upper nut and lower nut make the upper beam and the base between taut. Furthermore, the middle part of the upright post is provided with a protruding end, the protruding end surface is attached to the lower part of the upper beam and supports the upper beam, so that the distance between the sliding block and the base can be changed by changing the height of the middle section of the upright post, and the die height of the cam press can be adjusted. Furthermore, a gasket is arranged between the protruding end face and the upper beam, and the die assembly height of the press machine can be changed and the parallelism of the upper beam can be better ensured by adjusting the thickness of the gasket. Further, the driving mechanism comprises a planetary reducer, a flywheel, an intermediate transmission mechanism and a motor, wherein the planetary reducer, the flywheel, the intermediate transmission mechanism and the motor are arranged on the main shaft, the motor is arranged on the upper beam, the intermediate transmission mechanism is arranged on an output shaft of the motor, the intermediate transmission mechanism is a belt pulley, the belt pulley and the flywheel are connected and transmitted through a belt, the planetary reducer is connected with the main shaft, and the flywheel is connected with the planetary reducer. Furthermore, the driving mechanism also comprises a planetary reducer and a servo motor, wherein the servo motor is arranged on the upper beam, an output shaft of the servo motor is connected with the planetary reducer, and the planetary reducer is connected with the main shaft. Still further, cam drive mechanism includes the cam, goes up following wheel and lower following wheel, the cam is installed on the main shaft, go up following wheel and lower following wheel and be located the upper portion and the lower part of cam respectively, go up, lower two following wheels are rotated by the slider respectively and are supported, following wheel always contacts with the cam to drive the slider and reciprocate and accomplish stretching action. Still further, cam drive mechanism includes conjugate cam, goes up following wheel, pendulum rod, first following wheel and second following wheel down, the conjugate cam contains initiative cam and driven cam, initiative cam and driven cam are installed on the main shaft, it is rotated by the slider and is supported to go up following wheel, and it is located driven cam's upper portion to contact always with driven cam, the lower part of pendulum rod is rotated by the slider and is supported, and two fixed axles are installed on its upper portion, first following wheel and second following wheel are rotated by the fixed axle respectively and are supported, and it is located the lower part of initiative cam to contact always with the initiative cam, two following wheels set up relative the central line symmetry of initiative cam down. Compared with the prior art, the cam stretching machine has the advantages that the base, the upper beam, the upright post, the main shaft, the driving mechanism, the cam transmission mechanism and the sliding block are all detachable, so that the die height of the cam stretching machine can be ch