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Thread pair automatic tightening device

An automatic tightening device and thread pair technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problem that the screwing machine cannot tighten the thread pair, and achieve the effect of high work efficiency

Pending Publication Date: 2018-11-30
中铁建电气化局集团轨道交通器材有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the screwing machine in the prior art cannot directly tighten the thread pair on the tooling fixture, the present invention provides a device that can directly automatically tighten the thread pair on the tooling fixture

Method used

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  • Thread pair automatic tightening device
  • Thread pair automatic tightening device
  • Thread pair automatic tightening device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1-2 , the thread pair includes a bolt and a nut, and the tightening tool is a nut tightening die 8 matched with the nut.

[0037] The nut tightening mold 8 is provided with a fourth step 81, and a pressing plate 16 with a central opening is fixed below the connecting sleeve 3. Specifically, the connecting sleeve 3 and the pressing plate 16 are connected by screws. 81 are matched to define the third stepped groove 161 at the extreme position of the nut tightening die 8 .

Embodiment 2

[0039] Such as Figure 3-7 , the thread pair includes a bolt and a nut, the tightening tool includes a ratchet head 9, and a sleeve 10 matching the nut is clamped under the ratchet head 9.

[0040] A fixed sleeve 11 is fixed below the sliding shaft 4, and the ratchet head 9 is located inside the fixed sleeve 11. The side wall of the fixed sleeve 11 is provided with a plurality of second threaded holes, and the second threaded hole is connected with a gear for resisting in the gear groove of the ratchet head 9. Second screw 12.

[0041] A gland 13 is fixedly connected below the fixed sleeve 11, and a third screw hole is provided on the side wall of the gland 13, and a third screw 14 is connected in the third screw hole, and a second screw 14 is arranged between the third screw 14 and the sleeve 10. The spring 15 and the third threaded holes are symmetrically arranged on the gland 13 or evenly distributed in the circumferential direction.

[0042] The upper end of the ratchet ...

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Abstract

The invention belongs to the technical field of industrial assembly, and in particular, relates to a thread pair automatic tightening device. The thread pair automatic tightening device comprises a connecting sleeve; the connecting sleeve is fixedly connected with a first driving device for driving the connecting sleeve to rotate and a second driving device for driving the connecting sleeve to move; a slide shaft is arranged in the connecting sleeve; a chute is formed in the inner wall of the connecting sleeve; a slide block, matched with the chute, is fixed on the slide shaft; a tightening tool is fixedly connected to the lower end of the slide shaft; and an elastic device is arranged between the connecting sleeve and the slide shaft. The thread pair automatic tightening device can tighten thread pairs on tool fixtures, only needs to fix workpieces on the tool fixtures under the condition of more thread pairs, and moves to corresponding positions for tightening to achieve high workingefficiency.

Description

technical field [0001] The invention belongs to the technical field of industrial assembly, in particular to an automatic tightening device for thread pairs. Background technique [0002] The thread screwing machine in the prior art has the following structural forms: the patent No. CN206326541U discloses an automatic nut screwing device, which is to tighten the nut by placing the nut in the groove of the shaft sleeve 6 in advance, and the patent No. is CN203426688U The patent discloses an automatic thread screwing machine. The internal thread parts are placed on the platform 8 and sleeved on the cylindrical boss on the magnetic coupling, and the external thread parts pass through the process hole and the cylinder of the coupling. The pin fits on the upper end surface of the cylindrical boss, and is installed on the upper end surface of the cylindrical boss. Both of these structural forms require the screws or nuts to be pre-installed at the set position. If there are many t...

Claims

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Application Information

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IPC IPC(8): B23P19/06
CPCB23P19/06
Inventor 陈家龙钱潇科刘海斌解成光庄源昌
Owner 中铁建电气化局集团轨道交通器材有限公司
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