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Rotary positioning mechanism of rotary shaft

A technology of positioning mechanism and rotating shaft, used in mechanical equipment, transmission, friction transmission, etc.

Pending Publication Date: 2020-05-15
SANJET INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the tool changing arm 4 of a machine tool as an example, it is combined with one end of the rotating shaft 3 and rotates accordingly to perform the tool changing operation. There is a backlash G between the convex teeth 2a of 2, so that the rotating shaft 3 still has a small turning space. This situation causes the tool changer arm 4 to be unable to be accurately positioned at the stop position without shaking, which increases troubles. Similar The situation is not limited to the case where the object is a tool changer arm. For example, when the object is a rotary table, it will be difficult to maintain excellent stability in the state of stopping motion due to the existence of backlash

Method used

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  • Rotary positioning mechanism of rotary shaft
  • Rotary positioning mechanism of rotary shaft
  • Rotary positioning mechanism of rotary shaft

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Embodiment Construction

[0052] In order to illustrate the present invention more clearly, preferred embodiments are given and described in detail with accompanying drawings as follows. Please refer to Figure 4 to Figure 6 The rotary positioning mechanism 100 shown can be used to drive the rotating shaft 200. The rotating shaft 200 has a gear 201, and one end of the rotating shaft 200 can be combined with an object (not shown in the figure) and drive the object to rotate. Depending on the application occasion, The object can be a tool changer arm of a power tool or another object that has to be rotated and can be precisely positioned when the rotation is stopped.

[0053] The rotary positioning mechanism 100 includes a first follower 10 and a second follower 20 which are arranged adjacent to each other and can move relative to each other, and the first follower 10 has a first tooth row 12, and the second follower 20 has a first follower 20. Two tooth rows 22 , the gear 201 of the rotating shaft 200 ...

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Abstract

The invention discloses a rotary positioning mechanism of a rotary shaft. The rotary positioning mechanism of the rotary shaft comprises a first driven part and a second driven part, wherein the firstdriven part and the second driven part are arranged adjacent to each other and can move relatively. The first driven part and the second driven part are provided with tooth rows designed in a staggered mode, and are engaged with a gear at the same time. When the first driven part and the second driven part are subjected to effects of opposite forces, the first driven part and the second driven part can clamp and press the gear so that the gear cannot shake. When the gear is used as part of the rotary shaft, and one end of the rotary shaft is combined with an article, the article can carry outrotary motions, and will not shake but keep the accurate positioning state when rotating to a positioning point.

Description

technical field [0001] The present invention is related to the transmission mechanism; in particular, it refers to a gear transmission mechanism that can produce a rotary positioning effect on the rotating shaft. Background technique [0002] The transmission mechanism refers to the one that can change the movement mode, direction or speed of the power supply. It is common to use the friction force between the parts to transmit the power, or use the meshing method to transmit the power to drive the movement or operation of the machine parts. Taking the meshing transmission mechanism as an example, through the interlocking of the convex teeth, the effect of reliable motion transmission and large applicable load is exerted, so it is widely used in machine tools. [0003] Figure 1 to Figure 3 Shown is a known gear transmission mechanism, which drives the meshing gear 2 to produce forward and reverse rotation by driving the rack (Racks) 1 to reciprocate. The aforementioned conf...

Claims

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Application Information

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IPC IPC(8): F16H19/04F16H57/12
CPCF16H19/043F16H57/12F16H2057/126F16H2057/127
Inventor 张庆三
Owner SANJET INT
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