阅读说明：本技术 锁芯的锁闩方通加工工艺 (Lock latch square tube processing technology of lock cylinder ) 是由 祝红梅 于 2019-10-07 设计创作，主要内容包括：本发明公开了一种锁芯的锁闩方通加工工艺,主要包括以下步骤：S1、切料：用液压剪料机将截面为方形的杆件截断制得坯料；S2、整形：对S1中制得坯料的端面进行打磨整平,并倒圆角制得方通工件A；S3、定位：在方通工件A的端部画线定位；S4、预加工孔：在定位画线后的方通工件A的一端,用加工中心加工方形孔,另一端加工圆孔制得方通工件C；S5、深加工孔：对方通工件C端部的圆孔和方孔进行深加工制得方通工件D；S6、切边槽：在工件的方孔端的四边切开形成矩形槽并进行折弯,制得成品锁闩方通。本发明在加工圆孔和方孔前,对打孔位置进行测量定位,利用加工中心在工件的两端加工孔,加工的精度高,提高锁芯运转的平稳性,延长使用寿命。(The invention discloses a lock latch square tube processing technology of a lock cylinder, which mainly comprises the following steps: s1, cutting: cutting off a rod piece with a square cross section by using a hydraulic shearing machine to obtain a blank; s2, shaping: polishing and leveling the end face of the blank prepared in the step S1, and rounding to obtain a square tube workpiece A; s3, positioning: drawing a line at the end part of the square workpiece A for positioning; s4, preprocessing holes: processing a square hole at one end of the positioned and drawn square tube workpiece A by using a processing center, and processing a round hole at the other end to obtain a square tube workpiece C; s5, deep processing of holes: deep processing is carried out on the round hole and the square hole at the end part of the square through workpiece C to obtain a square through workpiece D; s6, trimming groove: and cutting four sides of the square hole end of the workpiece to form a rectangular groove and bending to obtain the finished product of the latch square tube. According to the invention, before the round hole and the square hole are machined, the drilling position is measured and positioned, and the machining center is utilized to machine the holes at the two ends of the workpiece, so that the machining precision is high, the running stability of the lock cylinder is improved, and the service life is prolonged.)

1. The lock latch square tube processing technology of the lock cylinder is characterized by mainly comprising the following steps of:

s1, cutting: cutting a rod piece with a square cross section by using a hydraulic shearing machine to obtain a blank, wherein the length of the blank is within a specified range;

s2, shaping: polishing and leveling the end surfaces of the blanks prepared in the step S1 to enable the upper end surface and the lower end surface to reach certain levelness and parallelism, and requiring the whole length of the blanks to be within a tolerance range, and then rounding four edges of the blanks to prepare a square tube workpiece A;

s3, positioning: drawing a line and positioning at the end part of the square through workpiece A to prepare for processing a rectangular hole, and determining a feed path of a tool bit according to the shape of the processed rectangular hole;

s4, preprocessing holes: processing a square hole at one end of the positioned and scribed square tube workpiece A by using a processing center to prepare a square tube workpiece B, and processing a round hole at the other end of the square tube workpiece B to prepare a square tube workpiece C;

s5, deep processing of holes: changing a long cutter, deeply processing the round hole and the square hole at the end part of the square through workpiece C to obtain a square through workpiece D, namely prolonging the lengths of the round hole and the square hole according to the specification and ensuring that the round hole and the square hole are not communicated, measuring the depths of the round hole and the square hole by using a vernier caliper, calculating the difference value with the set value, and then continuously processing the hole to ensure that the round hole and the square hole are communicated to form the square through workpiece E;

s6, trimming groove: and cutting four sides of the square hole end of the square tube workpiece E to form a rectangular groove, and bending the plate material of the rectangular groove by outwards turning for 90 degrees to ensure that the bending lengths of the four sides are consistent to obtain the finished product of the latch square tube.

2. The lock cylinder latch square tube processing technology of claim 1, characterized in that: and the integral length tolerance of the blank in the S2 is required to reach IT9 level, and the rounding process of the square tube workpiece A adopts a milling machine R cutter to process.

3. The lock cylinder latch square tube processing technology of claim 1, characterized in that: and the square tube workpiece E prepared in the step S5 is used for grinding the inner wall of the round hole by using a grinding machine so as to reduce the roughness of the inner wall.

4. The lock cylinder latch square tube processing technology of claim 1, characterized in that: the round hole of the finished latch square tube in the S6 is internally tangent to the square hole, and the width of the rectangular groove is 1/2 of the side width.

Technical Field

The invention belongs to the technical field of door locks, and particularly relates to a lock latch square tube processing technology of a lock cylinder.

Background

The existing door lock core comprises a core body, a rotatable core liner arranged in the core body and a shifting fork arranged at the tail part of the core liner, wherein the side surfaces of the core body and the core liner are drilled with matched marble holes, and marbles and springs are arranged in the marble holes. When the lock is unlocked, the key is used for operating the inner container of the lock cylinder to drive the shifting fork to rotate, and the shifting fork drives other mechanisms of the door lock to unlock the door lock. The latchbolt square tube is the important spare part of lock core body, and the latchbolt square tube generally adopts aluminum alloy casting shaping at present, and size precision is not high, influences the performance of tool to lock.

Therefore, a latch square tube processing technology of the lock cylinder is provided to solve the problems mentioned in the background technology.

Disclosure of Invention

The invention aims to provide a latch square tube processing technology of a lock cylinder, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a lock latch square tube processing technology of a lock cylinder mainly comprises the following steps:

s1, cutting: cutting a rod piece with a square cross section by using a hydraulic shearing machine to obtain a blank, wherein the length of the blank is within a specified range;

s2, shaping: polishing and leveling the end surfaces of the blanks prepared in the step S1 to enable the upper end surface and the lower end surface to reach certain levelness and parallelism, and requiring the whole length of the blanks to be within a tolerance range, and then rounding four edges of the blanks to prepare a square tube workpiece A;

s3, positioning: drawing a line and positioning at the end part of the square through workpiece A to prepare for processing a rectangular hole, and determining a feed path of a tool bit according to the shape of the processed rectangular hole;

s4, preprocessing holes: processing a square hole at one end of the positioned and scribed square tube workpiece A by using a processing center to prepare a square tube workpiece B, and processing a round hole at the other end of the square tube workpiece B to prepare a square tube workpiece C;

s5, deep processing of holes: changing a long cutter, deeply processing the round hole and the square hole at the end part of the square through workpiece C to obtain a square through workpiece D, namely prolonging the lengths of the round hole and the square hole according to the specification and ensuring that the round hole and the square hole are not communicated, measuring the depths of the round hole and the square hole by using a vernier caliper, calculating the difference value with the set value, and then continuously processing the hole to ensure that the round hole and the square hole are communicated to form the square through workpiece E;

s6, trimming groove: and cutting four sides of the square hole end of the square tube workpiece E to form a rectangular groove, and bending the plate material of the rectangular groove by outwards turning for 90 degrees to ensure that the bending lengths of the four sides are consistent to obtain the finished product of the latch square tube.

Preferably, the overall length tolerance of the blank in the step S2 is up to IT9 level, and the rounding process of the square tube workpiece a is implemented by using a milling machine R tool.

Preferably, the square tube workpiece E manufactured in S5 is ground on the inner wall of the circular hole by using a grinding machine to reduce the roughness of the inner wall.

Preferably, the round hole of the product latch square tube in S6 is inscribed in a square hole, and the width of the rectangular groove is 1/2 of the side width.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a latch square tube processing technique of a lock core and a use method thereof, which utilize a square rod piece as a raw material, the rod piece is made of carbon steel, the rod piece is cut into a columnar blank, the blank is polished and shaped to improve the dimensional accuracy, the punching position is measured and positioned before processing a round hole and a square hole, a processing center or a numerical control machine is utilized to process holes at two ends of a workpiece, the processed dimensional accuracy and the form and position accuracy are high, the processing quality of the latch square tube is improved, the stability of the lock core operation is favorably improved, and the service life is prolonged.

Drawings

FIG. 1 is a block and tube work piece A made by the latch manufacturing process of the present invention;

FIG. 2 is a block and tube work piece B made by the latch manufacturing process of the present invention;

FIG. 3 is a block and tube work piece C made by the latch manufacturing process of the present invention;

FIG. 4 is a block and tube work piece D made by the latch manufacturing process of the present invention;

FIG. 5 is a block and tube work piece E made by the latch manufacturing process of the present invention;

figure 6 is a cross-sectional view of the completed latch switch made by the latch manufacturing process of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.