CN-118023840-B - Method for batch processing of sector cone section guide parts of ammunition storage rack

CN118023840BCN 118023840 BCN118023840 BCN 118023840BCN-118023840-B

Abstract

The invention relates to a method for batch processing of sector cone section guide parts of an ammunition storage rack, and belongs to the field of part processing. The method comprises the following steps of process quota design and blank feeding, part end face machining, part outer circle surface turning and conical surface turning, and annular groove on the part outer circle surface turning to the size of a finished product. The single parts are reasonably arranged to form the annular parts by adopting the process flow of the invention, a large number of parts are processed on a lathe, and then the parts are milled and divided into a plurality of parts. The turning efficiency is greatly higher than the milling efficiency, and the quick clamping and positioning of the parts can be realized by means of the tool, so that a large amount of processing preparation time for alignment, cargo handling and the like is saved, and the processing efficiency can be greatly improved.

Inventors

WEI YUANWEI
LI YING
MENG YANXIA
GUO JUNWEN
LI XUJUN
XUE WEIYI
LIANG WEIHAO
PAN XIN

Assignees

山西北方机械制造有限责任公司

Dates

Publication Date: 20260505
Application Date: 20231213

Claims (5)

1. The method for batch processing of the sector cone section guide parts of the ammunition storage rack is characterized by comprising the following steps of: S1, calculating the number of blank parts, and distributing a plurality of blank parts along the circumferential direction; S2, clamping blank parts on a lathe by using a three-jaw chuck, and processing and leveling the outer end surfaces of the blank parts; S3, turning an outer circular surface R1 of a plurality of blank parts and an alpha angle conical surface corresponding to the outer circular surface, and turning and forming at one time; s4, turning annular grooves R2 on the outer circumferential surfaces of the blank parts for molding; s5, taking down a part to be processed, turning around and clamping, and clamping an outer circular surface R1 formed by processing the part by using a three-jaw chuck and aligning; s6, turning the thickness of the end face of the part to a finished product size t; S7, turning an inner hole R5 of the part, a straight-line section inner hole with the length L, a beta-angle conical surface corresponding to the inner hole, a round corner R3 at the joint of the left end surface and the straight-line section circular arc and a round corner R6 at the joint of the right end surface and the beta-angle conical surface; S8, on vertical machining center equipment, positioning the part by using a tool special for parting milling with an inner hole of the part machined by turning as a reference, and compacting the part by using a positioning pin (3) and a pressing plate (2); S9, machining a step groove and a through hole on the part to reach the size of a finished product; And S10, dividing the milling process of the part into a plurality of pieces.
2. The method for mass processing of segment guide parts of ammunition storage rack according to claim 1, wherein the formula for calculating the number N of blank parts in step 1 is as follows: Wherein R5 is the radius of the smallest arc section of the inner hole of the finished product, gamma is the angles of the two sides of the fan shape of the finished product, D is the diameter of the milling cutter of the separate part, and the number calculation result is an integer.
3. The method for mass processing of segment guide parts of ammunition storage rack according to claim 2, wherein the blank parts are circular, and the diameter of the inner hole is set to be 2 (R5-5) mm.
4. A method of mass processing of segment guide parts of an ammunition storage rack according to claim 3 wherein the blank part thickness is t+10mm of the finished part thickness.
5. The method for batch processing of the sector cone segment guide parts of the ammunition storage rack according to claim 1 is characterized in that the special tool for the split milling in the step 8 comprises a clamp body (1), a pressing plate (2) and a positioning pin (3); The fixture is characterized in that the fixture body (1) is arranged at the bottom for a platy body, the pressing plate (2) is arranged above the fixture body (1), the pressing plate (2) is a round cover plate, a hole is formed in the center of the circle, a supporting rod is arranged in the hole and used for connecting the fixture body (1), holes are formed in the left side and the right side of the center of the circle, positioning pins (3) are arranged in the hole, and groove openings are uniformly distributed in the circumference of the pressing plate (2) and used for positioning parts.

Description

Method for batch processing of sector cone section guide parts of ammunition storage rack Technical Field The invention belongs to the field of part processing, and particularly relates to a method for batch processing of sector cone segment guide parts of an ammunition storage rack. Background The gun ammunition storage rack is of a structure that a square frame is combined with fan-shaped guide pieces, and a plurality of cone-section guide pieces are distributed in the circumferential direction of an ammunition storage space and used for supporting and axially limiting ammunition. The shape of the part is a fan-shaped structure, the outer arc is a stepped arc structure with a gradient section and an annular groove, and the inner arc is a combined structure of a straight line section and a cone section with an inclined angle. At present, the parts are generally processed on a numerical control machine tool by programming a numerical control program and using a special forming cutter due to complex structure, and the parts need to be turned over and clamped for multiple times in the process. Because the whole part is mostly an arc surface, a conical surface and an inclined surface, the straightening and the alignment are difficult, and because the appearance is irregular, the clamping reference surface is smaller, the clamping amount is less, the part needs to be processed by adopting a smaller cutting tool, and the efficiency is lower. Along with the increase of the requirements of gun operations on ammunition equipment, the batches of guide parts are increased, so that the invention of a batch processing method is urgently needed, the processing quality of the parts is ensured, and the production efficiency is improved. Disclosure of Invention First, the technical problem to be solved The invention aims to solve the technical problem of providing a method for batch processing of sector cone section guide parts of an ammunition storage rack, which is used for solving the problem of low part processing efficiency in the prior art. (II) technical scheme In order to solve the technical problems, the invention provides a method for batch processing of sector cone segment guide parts of an ammunition storage rack, which comprises the following steps: s1, calculating the number of blank parts, and distributing a plurality of blank parts along the circumferential direction; S2, clamping blank parts on a lathe by using a three-jaw chuck, and processing and leveling the outer end surfaces of the blank parts; S3, turning an outer circular surface R1 of a plurality of blank parts and an alpha angle conical surface corresponding to the outer circular surface, and performing one-time turning forming; s4, turning annular grooves R2 on the outer circumferential surfaces of the blank parts for molding; S5, taking down the part to be processed, turning around and clamping, and clamping an outer circular surface R1 formed by processing the part by using a three-jaw chuck and aligning; s6, turning the thickness of the end face of the part to a finished product size t; S7, turning an inner hole R5 of the part, namely, a straight-line section inner hole with the length L, a beta-angle conical surface corresponding to the inner hole, a round corner R3 at the joint of the left end surface and the straight-line section circular arc and a round corner R6 at the joint of the right end surface and the beta-angle conical surface; S8, on vertical machining center equipment, positioning the part by using a tool special for parting milling with an inner hole of the part machined by turning as a reference, and compacting the part by using a positioning pin 3 and a pressing plate (2); s9, machining a step groove and a through hole on the part to reach the size of a finished product; s10, the milling processing of the part is divided into a plurality of parts. The method is characterized in that the formula for calculating the number N of blank parts in the step 1 is as follows: Wherein R5 is the radius of the smallest arc section of the inner hole of the finished product, gamma is the angles of the two sides of the fan shape of the finished product, D is the diameter of the milling cutter of the separate part, and the number calculation result is an integer. Wherein the blank part is in a circular ring shape, and the diameter of an inner hole is set to be 2 (R5-5) mm. Wherein the thickness of the blank part is t+10mm of the thickness of the finished product part. The special tool for the split milling in the step 8 comprises a clamp body 1, a pressing plate 2 and a positioning pin 3; The fixture body 1 is a platy body and arranged at the bottom, the pressing plate 2 is arranged above the fixture body 1, the pressing plate 2 is a round cover plate, the circle center is provided with holes, support rods are arranged in holes and used for connecting the fixture body 1, the left side and the right side of the circle center are provided with h