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Vernier caliper for measuring shaft shoulder distance and measuring method

A vernier caliper and shaft measuring technology, which is applied in the field of measurement, can solve the problem that the distance from the shaft shoulder to the center of the fork ear hole cannot be measured on site, and achieve the effects of benefiting production efficiency, ensuring machining accuracy, and high measurement accuracy

Active Publication Date: 2021-11-02
JIANGXI CHANGHE AVIATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is: in order to overcome the above problems, the present invention provides a vernier caliper and a measuring method for measuring the shaft shoulder distance, which solves the problem that the distance from the shaft shoulder to the center of the fork ear hole of such parts cannot be measured on-site. Accurate, high measurement accuracy

Method used

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  • Vernier caliper for measuring shaft shoulder distance and measuring method
  • Vernier caliper for measuring shaft shoulder distance and measuring method
  • Vernier caliper for measuring shaft shoulder distance and measuring method

Examples

Experimental program
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Effect test

Embodiment 1

[0022] like figure 1 Shown is a schematic diagram of the shaft journal lug parts. There are two lug holes opposite to each other at the lug end, and the other end is the shaft shoulder end. The existing technology cannot measure the distance between the lug hole and the shaft shoulder. Therefore, this application proposes a A vernier caliper capable of measuring the distance from a fork lug hole to a shaft shoulder and a measuring method.

[0023] like figure 2 As shown, a vernier caliper for measuring the shaft-shoulder distance includes a fine-tuning nut 1, a screw rod 2, a micro-movement frame 3, a fastening screw 4, a vernier ruler 5, a main ruler 6, a fixed jaw 7, a locking screw 8, and a clip 9. Measuring head 10, movable claw 11, rivet 12 and positioning block 13,

[0024] The main structure of the vernier caliper includes the main ruler 6 and the vernier ruler 5. The vernier ruler 5 is movably installed on the main ruler 6, and the vernier ruler 5 is provided with a...

Embodiment 2

[0031] The method of measuring the vernier caliper for measuring the shaft-shoulder distance. When measuring, the arc measuring head 10-2 of the measuring head 10 fits the inner wall of the fork ear hole to complete the centering of the measuring point, and the V-shaped groove 13-1 of the positioning block 13 is placed On the outer circle adjacent to the shaft shoulder, at the same time, the measuring surface of the movable claw 11 is closely attached to the end surface of the shaft shoulder, and the nut 1 is manually fine-tuned to make the measuring surface and the end surface of the shaft shoulder completely fit, and the reading of the vernier caliper is read, and the reading is The distance between the journal yoke trunnion shoulder and the center of the yoke hole to be measured.

Embodiment 3

[0033] A vernier caliper for measuring shaft-shoulder distance, which includes a fine-tuning nut 1, a screw rod 2, a micro-movement frame 3, a fastening screw 4, a vernier ruler 5, a main ruler 6, a fixed claw 7, a locking screw 8, a clip 9, Measuring head 10, movable claw 11, rivet 12 and positioning block 13. There are scales on the main chi 6 and the vernier chi 5, and the chi body of the main chi 6 and the vernier chi 5 have measuring claws up and down; Bottom movable jaw 11 and an end of vernier ruler (5) are integrally manufactured.

[0034] The fine-tuning nut 1 is located in the groove of the fine-tuning frame 3, one end of the screw rod 2 is connected and fixed with the vernier 5 through threads, and the other end is connected with the fine-tuning nut 1 and the fine-moving frame 3 through threads, and rotating the fine-tuning nut 1 will realize Vernier scale 5 fine adjustments. The micro-movement frame 3 and the vernier frame 5 are provided with a fastening screw 4,...

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Abstract

The invention discloses a vernier caliper for measuring a shaft shoulder distance and a measuring method. The vernier caliper comprises a fine tuning nut, a screw rod, a micro-motion frame 3, a vernier scale, a main scale, a fixed measuring jaw, a clamp, a measuring head, a movable measuring jaw and a positioning block; the micro-motion frame and the vernier scale are movably installed on the main scale, the vernier scale is located on one side of the micro-motion frame, the clamp is of a U-shaped structure, a threaded hole is formed in one side of the clamp, the other side of the clamp is provided with a first bayonet, two sides of the first bayonet are symmetrically provided with inward first buckles, the clamp is clamped at two sides of the fixed measuring jaw, one end of the measuring head is provided with a second bayonet and a second groove, the other end of the measuring head is provided with an arc measuring head, two sides of the second bayonet are symmetrically provided with outward second buckles, and the second buckles extend into the clamp to be camped with the first buckles; the fixed measuring jaw is arranged in a second groove at one end of the measuring head; the top of the positioning block is clamped in the vernier scale, a first groove is formed in the positioning block, the movable measuring jaw is arranged in the first groove so that the movable measuring jaw can be fixedly connected with the positioning block, and the fine adjustment nut is fixed in an installation groove of the fine adjustment frame through a screw rod; and the screw rod penetrates through the positioning block and is connected with the vernier scale.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a vernier caliper and a measuring method for measuring the shaft-shoulder distance. Background technique [0002] In mechanical processing, parts such as journal fork lugs are often involved. The structure of this type of parts is composed of a stepped shaft and a fork lug with holes. The distance from the shaft shoulder to the center of the fork lug hole is a dimension with certain precision, and the fork lug hole The aperture also has a certain accuracy, as attached figure 1 . In the machining and measurement of such parts, when measuring with ordinary calipers, it cannot be measured due to the inaccurate positioning and large measurement errors. In addition, the three-coordinate measurement needs to remove the workpiece from the machine tool, and after re-alignment, the measurement is completed. Due to the disassembly and assembly of the workpiece, the align...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B3/20G01B5/14
CPCG01B3/20G01B5/14Y02E30/30
Inventor 张智海钟宏伟刘志辉李婕宁勇潘建定徐晓雨
Owner JIANGXI CHANGHE AVIATION IND
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