Machining process for kit worm

A processing technology and worm technology, which is applied in the field of packaged worm processing technology, can solve problems such as heat generation, low transmission efficiency, and wear

Inactive Publication Date: 2018-12-07
合肥银泉铸造有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The worm gear and worm mechanism are often used in the occasions where the two shafts are interlaced, the transmission ratio is large, the transmission power is not large, or the gap is working. The existing worm gear transmission has low efficiency and serious wear. The relative sliding speed is large, so the friction loss is large and the efficiency is low; on the other hand, the relative sliding speed makes the tooth surface wear seriously, and the heat is serious. In order to dissipate heat and reduce wear, the commonly used expensive ones have better wear reduction and wear resistance. Good material and good lubrication device, so the cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A process for processing a set worm, including the steps:

[0049] 1) Annealing for billet making and forging;

[0050] 2) Normalizing

[0051] Heat the set worm workpiece to 1200℃ for 3h;

[0052] 3) After the rough turning is adjusted, the outer circle of the semi-finished turning is left with a margin of 0.15mm, and the rough turning spiral surface;

[0053] 4) The end face of the inner hole of the precision turning;

[0054] 5) Key slot;

[0055] 6) Semi-finished spiral surface;

[0056] 7) Pliers, the part of the thread tail of the whole screw thread that is not completely whole is less than 1 / 3 of the tooth thickness, and the flat thorn is removed;

[0057] 8) Heat treatment;

[0058] 9) Semi-finished outer circle;

[0059] 10) Fine grinding spiral surface;

[0060] 11) Research center hole;

[0061] 12) Fine grinding of the outer circle;

[0062] 13) Fine grinding of spiral surface.

[0063] Said semi-finished outer circle, low temperature aging at 160 DEG C, 26 hours.

[0064] The w...

Embodiment 2

[0069] A process for processing a set worm, including the steps:

[0070] 1) Annealing for billet making and forging;

[0071] 2) Normalizing

[0072] Heat the set worm workpiece to 1300℃ for 2.5h;

[0073] 3) After the rough turning is prepared, the outer circle of semi-finished turning is left with a margin of 0.18mm, and the rough turning spiral surface;

[0074] 4) The end face of the inner hole of the precision turning;

[0075] 5) Key slot;

[0076] 6) Semi-finished spiral surface;

[0077] 7) Pliers, the part of the thread tail of the whole screw thread that is not completely whole is less than 1 / 3 of the tooth thickness, and the flat thorn is removed;

[0078] 8) Heat treatment;

[0079] 9) Semi-finished outer circle;

[0080] 10) Fine grinding spiral surface;

[0081] 11) Research center hole;

[0082] 12) Fine grinding of the outer circle;

[0083] 13) Fine grinding of spiral surface.

[0084] The semi-finished outer circle has a low temperature aging at 180°C for 24 hours.

[0085] Afte...

Embodiment 3

[0090] A process for processing a set worm, including the steps:

[0091] 1) Annealing for billet making and forging;

[0092] 2) Normalizing

[0093] Heat the set worm workpiece to 1400°C for 2h;

[0094] 3) After the rough turning is prepared, the outer circle of semi-finished turning is left with a margin of 0.2mm, and the rough turning spiral surface;

[0095] 4) The end face of the inner hole of the precision turning;

[0096] 5) Key slot;

[0097] 6) Semi-finished spiral surface;

[0098] 7) Pliers, the part of the thread tail of the whole screw thread that is not completely whole and less than 1 / 3 of the tooth thickness, remove the flat thorn;

[0099] 8) Heat treatment;

[0100] 9) Semi-finished outer circle;

[0101] 10) Fine grinding spiral surface;

[0102] 11) Research center hole;

[0103] 12) Fine grinding of the outer circle;

[0104] 13) Fine grinding of spiral surface.

[0105] Said semi-finished outer circle, low temperature aging at 200 DEG C, 22 hours.

[0106] The worm workpie...

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PUM

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Abstract

The invention discloses a machining process for a kit worm. The machining process comprises the following steps that 1) blank making, forging and annealing treatment are carried out; 2) normalizing iscarried out, wherein the kit worm workpiece is heated to 1200-1400 DEG C, and heat preservation is carried out for 2-3 hours; 3) after rough turning modulation is completed, semi-finish turning is carried out on the outer circle, wherein the allowance of 0.15 mm-0.2 mm is reserved, and rough turning is carried out on the spiral surface; 4) finish turning is carried out on the end face of an innerhole; 5) inserting of key grooves is carried out; 6) semi-finish turning is carried out on the spiral face; 7) plier machining is carried out, wherein incomplete threads of the tails of screw threadsare trimmed to be smaller than 1/3 of the tooth thickness part, and flat burrs are removed; 8) heat treatment is carried out; 9) semi-accurate grinding is carried out on the outer circle; 10) accurate grinding is carried out on the spiral surface; 11) center hole lapping is carried out; 12) accurate grinding is carried out on the outer circle; and 13) accurate grinding is carried out on the spiral surface. Thus, machining is simple, the production cost is low, and the transmission rate is high.

Description

Technical field [0001] The invention belongs to the technical field of mechanical technology, and specifically relates to a processing technology of a sleeve worm. Background technique [0002] Worm gears are often used to transmit the movement and power between two interleaved shafts. The worm wheel and the worm are equivalent to the gear and the rack in the middle plane, and the worm and the worm are similar in shape. Worm gear and worm mechanism are often used in situations where the two shafts are interleaved, the transmission ratio is large, the transmission power is not large, or the gap is working. The existing worm gear has low transmission efficiency and severe wear. When the worm gear is engaged in transmission, the gap between the meshing gear teeth The relative sliding speed is large, so the friction loss is large, and the efficiency is low. On the other hand, the relative sliding speed means that the tooth surface wears seriously and heats up. In order to dissipate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 朱晓林
Owner 合肥银泉铸造有限责任公司
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