Connecting-rod-type transmission mechanism of three-dimensional engraving machine

Abstract

The invention relates to a connecting-rod-type transmission mechanism of a three-dimensional engraving machine, comprising a lathe bed which is provided with a working table which is driven by a third screw to slide forward and backward; the working table is provided with a turntable frame which is evenly provided with a plurality of turntables; the working table is also provided with a tail seatframe which can slide forward and backward; the tail seat frame is provided with tail seats which correspond to the turntables; and a clamping mechanism is formed by each tail seat and each turntable. The transmission mechanism is characterized in that the turntables are driven by the connecting rod which is connected with each turntable through a pin; the positions on the turntables, which are provided with the pin, are consistent; and the connecting rod is driven by a driving mechanism which comprises a drive motor and a reducer connected with the drive motor. The technical scheme is characterized in that the turntables of the engraving machine are driven by the connecting rod; and the connecting rod is driven by the driving mechanism. Compared with the prior art, the transmission mechanism has the advantage of obviously lowering the cost of the engraving machine; and the synchronous rotation of the turntables is realized, and the processing precision of the three-dimensional engraving machine is improved.

Description

technical field [0001] The invention relates to a link type transmission mechanism of a three-dimensional engraving machine, which belongs to the technical field of engraving machines. Background technique [0002] Chinese Patent No. CN200820083901.1 discloses a turntable transmission mechanism of a three-dimensional engraving machine, such as Figure 4 As shown, multiple turntables 103 are installed on this engraving machine, and each turntable 103 is driven by a worm gear reducer 102, the servo motor 101 drives the first worm reducer 102, the second and subsequent worm reducer 102 is driven by the rotating shaft 104 and the coupling 105; the disadvantage of this turntable transmission mechanism is that there are several turntables 103 and several worm gear reducers 102 are required, and the cost is relatively high. The most important thing is that when the worm reducer 102 works, The contact surface between the worm gear and the worm is sliding friction, so it wears out qu...

AI Technical Summary

Problems solved by technology

[0002] Chinese Patent No. CN200820083901.1 discloses a turntable transmission mechanism of a three-dimensional engraving machine, such as Figure 4 As shown, multiple turntables 103 are installed on this engraving machine, and each turntable 103 is driven by a worm gear reducer 102, the servo motor 101 drives the first worm reducer 102, the second and subsequent worm reducer 102 is driven by the rotating shaft 104 and the coupling 105; the disadvantage of this turntable transmission mechanism is that there are several turntables 103 and several worm gear reducers 102 are required, and the cost is relatively high. The most important thing is that when the worm reducer 102 works, The contact surface between the worm gear and the worm is sliding friction, so the wear is fast, and gaps are likely to occur, which is not conducive to processing. If the gap adjustment is performed on the worm due to unequal distances, the cost will double again

Figure 5 The three-dimensional engraving machine turntable transmission mechanism. Each turntable 203 is driven by a servo motor 201 and a worm gear reducer 202. Obviously, the cost of this transmission mechanism is higher, and each servo motor 201 and the corresponding worm gear reducer 202 are relatively Work independently, so it is more difficult to achieve full synchronization

Image 6 The first turntable 303 of the turntable transmission mechanism of the branch engraving machine is driven by the servo motor 301 and the corresponding worm gear reducer 302, and the subsequent turntable 303 is driven by the synchronous belt 305 and the matching tension wheel 304 and synchronous gear 306, the tension wheel 304 of this mechanism is not easy to adjust, when the tension of the synchronous belt 305 is slightly larger, the load of the servo motor 301 is very large, affecting the normal operation of the engraving machine, while the tension of the synchronous belt 305 is slightly smaller , the timing belt 305 and the turntable 303 are easy to slip, and the turntable 303 is prone to vibration, which affects the processing accuracy

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