Indexing mechanism
A technology of indexing mechanism and indexing shaft, which is applied in the field of indexing mechanism, can solve the problems of poor repeatability and out-of-step, and achieve the effect of ensuring accuracy and preventing the block from being stuck
Inactive Publication Date: 2013-03-13
SHANGHAI HUGONG AUTO ELECTRIC
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Problems solved by technology
The grooved wheel mechanism is simple in structure, easy to process, and high in mechanical efficiency, but the repetition accuracy is poor in the long-term use process, and there is a possibility of out-of-step, and because the rotating arm is driven by a stepping motor, there is a cumulative error
Method used
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Embodiment Construction
[0038] The present invention will be further described below in conjunction with the drawings.
[0039] figure 1 It is the indexing mechanism on the riveting machine base of the existing vehicle relay base plate, which includes a rotating arm 20 with a cylindrical pin 21 and a sheave 22 with a plurality of radial grooves 23. When the cylindrical pin 21 on the continuously rotating rotating arm 20 enters the radial groove 23, the sheave wheel 22 is rotated; when the cylindrical pin 21 is rotated out of the radial groove 23, the sheave wheel 22 stops rotating. The rotating arm 20 rotates once, and the grooved wheel 22 completes a rotating stop motion. The sheave mechanism is simple in structure, easy to process, and has high mechanical efficiency. However, it has poor repetition accuracy during long-term use, and may lose step, and because the rotating arm 20 is driven by a stepping motor, there are accumulated errors.
[0040] Figure 2~10 It is a preferred structure of the indexin...
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The invention relates to a dividing mechanism. A rectangular narrow and long ejector pad guide slot is transversely arranged on a horizontally configured base plate; the left-end slot cavity of the ejector pad guide slot is expanded to the inner side; a first cylinder is arranged above the base plate; a rotary pin is fixed on the piston rod of the first cylinder; the rotary pin downwards penetrates through the ejector pad guide slot and then is assembled on ejector pads arranged below the base plate; the ejector pads can rotate around the rotary pin; the ejector pad arranged at the left side of the rotary pin is in a horizontally narrow and long rectangular shape, and the left end of the ejector pad is fixedly provided with a guide pin which is upwards installed in the ejector pad guide slot; the ejector pad arranged at the right side of the rotary pin is trapezoidal, and a trapezoidal slope tilts towards the inner side of the ejector pad and forms an obtuse angle with the inner edge of the ejector pad at the left side; a long elastic sheet is configured in a left-segment slot cavity along the length direction of the ejector pad guide slot; a dividing plate with a main shaft is horizontally arranged at the inner side of the ejector pad guide slot; and at least 3 dividing shafts, parallel to the main shaft, are evenly arranged on the dividing plate and can contact with the right side and the trapezoidal slope of the ejector pad. The dividing mechanism has the advantage of no accumulated error and can ensure repeatable accuracy.
Description
Technical field [0001] The invention relates to a riveting device of a relay floor for a vehicle, in particular to an indexing mechanism on a rotary clamp base of the riveting device. Background technique [0002] Indexing mechanism is a mechanism that can realize intermittent rotation to a certain angle or move a certain distance. It can be divided into rotary indexing mechanism and linear indexing mechanism. The main function is to realize a specific angle of rotation or a specific distance of movement. It is mostly used in modern mechanization. Continuous processing. [0003] Take the rotary indexing mechanism as an example. If a part of the finished product requires multiple processes to be processed into a finished product, the rotating fixture base can be used to fix the work piece. After one process is completed, the work piece can be moved with the fixture. The rotating part is rotated through a certain angle, and then the robot arm fixed in the rotated position is used to...
Claims
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IPC IPC(8): B21J15/38
Inventor 李荣张彦施玮姜景门晋琪
Owner SHANGHAI HUGONG AUTO ELECTRIC