CN113846909A

CN113846909A - Simple door and window lock catch connecting rod and numerical control machining method thereof

Info

Publication number: CN113846909A
Application number: CN202111106505.2A
Authority: CN
Inventors: 陈志澜; 马尧; 俞海洋
Original assignee: Shanghai Intelligent Manufacturing System Innovation Center Co ltd; Shanghai Jian Qiao University
Current assignee: Shanghai Intelligent Manufacturing System Innovation Center Co ltd; Shanghai Jian Qiao University
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2021-12-28

Abstract

The invention relates to a simple door and window lock catch connecting rod and a numerical control processing method thereof, wherein the connecting rod comprises a lock rod (1) and a lock catch (2) which are integrally formed, and the lock catch (2) is vertically connected with the lock rod (1); the lock rod (1) comprises a sleeve (10) and an inner core (11) which are sleeved with each other; the locking rod (1) is vertically inserted into the door, one side, close to the outside of the door, of the sleeve (10) is provided with a rod tail (12), a bolt hole (120) is formed in the rod tail (12), a bolt is inserted into the bolt hole (120), the bolt is fixedly connected with the outside of the door, and the part numerical control method is used for machining. Compared with the prior art, the invention has the advantages of easy self rescue, no influence on the locking essence and the like.

Description

Simple door and window lock catch connecting rod and numerical control machining method thereof

Technical Field

The invention relates to the field of part machining, in particular to a simple door and window lock catch connecting rod and a numerical control machining method thereof.

Background

In life, the lock is always an important essential product, and almost people use the lock, for example, in a small room of an automatic teller machine and a small compartment of a public toilet, the lock needs to be temporarily locked to form a certain private space.

However, the above-described door lock does not require a high degree of theft prevention, but requires a stable latch which does not easily fall off without being disturbed, and also requires a portable opening and closing. However, in a private space, once the lock catch is jammed, the lock cannot be opened from the inside. At this time, the outside person cannot touch the lock and is difficult to rescue, and the person locked in the room is more anxious and is difficult to form an effective cracking method. How to form a self-rescue is more critical for this type of lock.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a simple door and window lock catch connecting rod which is easy to save self and does not influence the locking essence and a numerical control processing method thereof.

The purpose of the invention can be realized by the following technical scheme:

a simple door and window lock catch connecting rod comprises a lock rod and a lock catch which are integrally formed, wherein the lock catch is vertically connected with the lock rod; the lock rod comprises a sleeve and an inner core which are sleeved with each other;

the locking rod is vertically inserted into the door, one side of the sleeve, which is close to the outside of the door, is provided with a rod tail, the rod tail is provided with a bolt hole, a bolt is inserted into the bolt hole, and the bolt and the door are fixedly connected to the outside of the door.

The sleeve pipe AND gate relatively fixed, and the inner core can drive the hasp rotatory, and then accomplish the switch of lock, and the bolt is with the AND gate rigid coupling, but expose outdoors, when someone is stranded inside in the door, for example unable rotation after the inner core is locked, when the people hears the SOS this moment outdoors, can with unusual means, for example vigorously hammering, break away from the bolt AND gate rigid coupling with the bolt to extract from the bolt hole, and then make the lock fall down from the door and be untied, also can avoid kicking the door, the trick, can not destroy the overall structure of door. It is emphasized that, with this configuration, the sleeve and the core can only rotate relative to each other and cannot move axially.

Further, the diameter of the inner core is 80-95% of the diameter of the sleeve.

Furthermore, the lock rod is of a telescopic structure. I.e. the sleeve and the inner core can not only rotate relatively, but also move axially.

Furthermore, one side of the lock catch, which is far away from the lock rod, is provided with at least one locking plate; the lock plate is provided with a lock hole, and when the door is locked, the lock hole is matched and clamped with the lock on the door frame.

During operation, if the locking rod can not stretch out and draw back, only the lock catch needs to be rotated until the lock hole is matched and clamped with the lock on the door frame. If the lock rod can be extended, the inner core needs to be pulled out firstly, and then the lock hole is matched and clamped with the lock on the door frame after the inner core is rotated in place.

Furthermore, the lock catch is provided with two locking plates which are arranged in parallel.

Further, the diameter of the lock hole is 60-70% of the width of the lock plate.

Furthermore, the lock catch is provided with a groove. When the door lock is locked, if the door lock is difficult to pull by hand, a simple tool such as an inner angle screw can be inserted into the groove if the simple tool is arranged on or beside the hand, so that the torque for pulling the lock is increased, and a self-rescue way is increased.

Further, the thickness of the lock catch is 40-60% of the length of the inner core.

Further, the width of the lock catch is 90-95% of the diameter of the inner core. The inner core is provided with a through hole. For weight reduction.

The numerical control machining method for the simple door and window lock catch connecting rod is simple and easy to implement, has the advantages of stable machining quality and simplifies the complicated programming problem in the machining process, and particularly designs the machining process analysis of drilling and curved surfaces and the feeding conditions of chamfering and chamfering.

Specifically, UG10.0 software is used for three-dimensional modeling, a feed path is designed, and numerical control machining on a three-axis linkage numerical control machine tool is carried out according to the following steps;

and opening UG10.0 software, and building a model for modeling. And then drawing a plane sketch, and obtaining a three-dimensional model through rotating the characteristics.

Utilizing software to derive two-dimensional engineering drawing, and marking the technological dimension (including dimension tolerance marking, geometric tolerance marking, roughness marking and technical requirement marking) on the drawing in detail

And (4) formulating the specific technological procedures and processing techniques of the connecting rod parts.

The method is carried out by three layers of rough machining, semi-finish machining and finish machining.

Compared with the prior art, the invention has the following advantages:

(1) according to the invention, the bolt is exposed outside the door, when someone is trapped inside the door, and the person outside the door hears a help, the bolt can be fixedly connected with the door by an unconventional means such as strong hammering, so that the rescue is completed;

(2) in the invention, the lock catch is provided with the groove, when the door lock is locked, if the door lock is difficult to pull by hand, if some simple tools are arranged on the hand or beside the hand, the simple tools can be inserted into the groove, so that the torque for pulling the lock is increased, and a self-rescue way is increased;

(3) the invention can reduce the steps of the working procedure and the errors of the parts in the numerical control machining process, increase the precision of the connecting rod and lead the appearance of the connecting rod parts to be more beautiful.

Drawings

FIG. 1 is a structural view of a connecting rod in embodiment 1;

the reference numbers in the figures indicate: the lock rod 1, the sleeve 10, the inner core 11, the rod tail 12, the bolt hole 120, the through hole 13, the lock catch 2, the lock plate 21, the lock hole 22 and the groove 23.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

Example 1

A simple door and window lock catch connecting rod, as shown in figure 1, comprises a lock rod 1 and a lock catch 2 which are integrally formed, wherein the lock catch 2 is vertically connected with the lock rod 1; the lock rod 1 comprises a sleeve 10 and an inner core 11 which are sleeved with each other; the locking rod 1 is vertically inserted in the door, one side of the sleeve 10 close to the outside of the door is provided with a rod tail 12, the rod tail 12 is provided with a bolt hole 120, a bolt is inserted in the bolt hole 120, and the bolt and the door are fixedly connected with the outside of the door. The inner core 11 is provided with a through hole 13. For weight reduction.

The diameter of the inner core 11 is 80-95% of the diameter of the sleeve 10. One side of the lock catch 2, which is far away from the lock rod 1, is provided with at least one locking plate 21; the lock plate is provided with a lock hole 22, and when the door is locked, the lock hole 22 is matched and clamped with a lock on the door frame. During operation, the lock catch 2 only needs to be rotated until the lock hole 22 is matched and clamped with the lock on the doorframe. The lock catch 2 is provided with two locking pieces 21 which are arranged in parallel. The diameter of the lock hole 22 is 60-70% of the width of the lock plate 21. The thickness of the lock catch 2 is 40-60% of the length of the inner core 11. The width of the lock catch 2 is 90-95% of the diameter of the inner core 11.

The sleeve 10 and the door are relatively fixed, the inner core 11 can drive the lock catch 2 to rotate, and then the lock is opened and closed, the bolt is fixedly connected with the door and is exposed outside the door, when someone in the door is trapped inside, for example, the inner core 11 cannot rotate after being locked, and at the moment, when the person outside the door hears for help, the bolt and the door can be separated from the fixed connection by an unconventional means, for example, hammering vigorously, and are pulled out from the bolt hole 120, so that the lock falls off from the door and is unlocked, the door-kicking and door-cracking can be avoided, and the integral structure of the door cannot be damaged. It should be emphasized that in this configuration, the sleeve 10 and the core 11 can only rotate relative to each other and cannot move axially.

The lock catch 2 is provided with a groove 23. When the door lock is locked, if the door lock is difficult to pull by hand, a simple tool, such as an inner angle screw, on or beside the hand can be inserted into the groove 23, so that the moment for pulling the lock is increased, and a self-rescue way is increased.

A numerical control processing method of the simple door and window lock catch connecting rod comprises the following steps:

step 1, analyzing the use of the connecting rod;

the ventilation wall connecting rod is made of titanium-aluminum alloy materials, and the part is used for a crank connecting rod of a ventilation wall plate assembly of the front boarding door.

Step 2, size analysis;

setting the size of the connecting rod by calculating the range of the components;

and 3, deriving a two-dimensional engineering drawing, wherein the detailed process dimension marking comprises the following steps: marking a series of marks such as dimensional tolerance mark, form and position tolerance mark, roughness mark, technical requirement mark and the like, and then printing the engineering drawing to form a clear and correct part process drawing;

step 4, formulating a process rule and a machining process of the connecting rod part, and if some problems are encountered in programming, clearly marking the details;

and 5, utilizing a three-axis linkage numerical control machine tool to effectively use back milling, turn milling and side face milling control groove drilling to process the part according to the tool path requirement of the part in the feeding process.

In this embodiment, the processing method includes the following steps:

designing cutter parameters (tooth number, diameter, spiral angle, front angle, rear angle, RC), processing parameters (cutting depth, feeding, rotating speed) and part information (material);

establishing a three-dimensional model of a part;

clamping a large circle, and machining by adopting a three-axis linkage numerical control machine tool;

the large diameter is upward, and a machining center is used for machining;

changing an end mill and processing the shape;

turning and clamping, and selecting proper tool path data;

a clamping tool, which uses a machining center to machine;

and (5) changing the tool and processing the notch groove.

Simulation machining, aiming at improving the precision of the connecting rod part of the ventilation wall and optimizing the track of the cutter position

Analyzing a tool path;

step one. Clamping a large circle: adopting a three-axis linkage numerical control machine tool, clamping an excircle by a three-jaw chuck, wherein the clamping length is less than 18mm, and firstly drilling a hole at the center

Depth of 1mm, and drilling

A through hole with a depth greater than 130 mm; and the excircle turning tool is changed to respectively roughly and finely turn the excircle step surface and the step groove, and then chamfer, so that the tolerance requirement is ensured.

And step two. And (5) clamping for the second time, and machining by using a machining center. And clamping the machined excircle by using a three-jaw chuck. The major diameter is upward. Firstly, drilling a 12mm hole to ensure the drilling through, wherein the depth is more than 21 mm.

And (3) changing an end mill, machining the appearance, and ensuring that the machining size requires 19mm, the left circular arc R is 9.5 mm, and the total length is 130 mm. And finally, machining end face grooves by using an arc changing cutter, wherein the end face grooves are 16mm multiplied by 30mm multiplied by 8 mm.

And step three. And (5) clamping for the third time, and machining by using a machining center. And turning around to clamp the workpiece, and clamping the plane processed in the previous procedure by using flat tongs. The arc changing knife is used for processing the inner groove with the diameter of 16mm multiplied by 30mm multiplied by 8 mm.

And step four. And a fourth clamping tool uses a machining center to machine. Clamping workpiece with flat tongs, drilling central hole first

1mm deep and then drilled

The depth of the through hole is larger than 15 mm.

The notched groove was machined with an end mill, and the width was 11.7mm, the length 23mm, and the depth 19 mm.

Example 2

A simple door and window lock catch connecting rod, refer to fig. 1, the connecting rod includes locking lever 1 and lock catch 2 formed integrally, lock catch 2 couples to locking lever 1 vertically; the lock rod 1 comprises a sleeve 10 and an inner core 11 which are sleeved with each other; the locking rod 1 is vertically inserted in the door, one side of the sleeve 10 close to the outside of the door is provided with a rod tail 12, the rod tail 12 is provided with a bolt hole 120, a bolt is inserted in the bolt hole 120, and the bolt and the door are fixedly connected with the outside of the door. The thickness of the lock catch 2 is 40-60% of the length of the inner core 11. The width of the lock catch 2 is 90-95% of the diameter of the inner core 11. The inner core 11 is provided with a through hole 13. For weight reduction.

The diameter of the inner core 11 is 80-95% of the diameter of the sleeve 10. The lock rod 1 is a telescopic structure. I.e. the sleeve 10 and the core 11 can not only be rotated relatively but also be moved axially. One side of the lock catch 2, which is far away from the lock rod 1, is provided with at least one locking plate 21; the lock plate is provided with a lock hole 22, and when the door is locked, the lock hole 22 is matched and clamped with a lock on the door frame. During operation, the inner core 11 needs to be pulled out first, and then the lock hole 22 is matched and clamped with the lock on the door frame after the inner core is rotated in place. The lock catch 2 is provided with two locking pieces 21 which are arranged in parallel. The diameter of the lock hole 22 is 60-70% of the width of the lock plate 21.

The sleeve 10 and the door are relatively fixed, the inner core 11 can drive the lock catch 2 to rotate, and then the lock is opened and closed, the bolt is fixedly connected with the door and is exposed outside the door, when someone in the door is trapped inside, for example, the inner core 11 cannot rotate after being locked, and at the moment, when the person outside the door hears for help, the bolt and the door can be separated from the fixed connection by an unconventional means, for example, hammering vigorously, and are pulled out from the bolt hole 120, so that the lock falls off from the door and is unlocked, the door-kicking and door-cracking can be avoided, and the integral structure of the door cannot be damaged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, so that any person skilled in the art can make modifications or changes in the technical content disclosed above. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A simple door and window lock catch connecting rod is characterized in that the connecting rod comprises a lock rod (1) and a lock catch (2) which are integrally formed, and the lock catch (2) is vertically connected with the lock rod (1); the lock rod (1) comprises a sleeve (10) and an inner core (11) which are sleeved with each other;

the lock rod (1) is vertically inserted into the door, one side of the sleeve (10) close to the outside of the door is provided with a rod tail (12), the rod tail (12) is provided with a bolt hole (120), a bolt is inserted into the bolt hole (120), and the bolt and the door are fixedly connected to the outside of the door.

2. The simple door and window hasp connection rod of claim 1, wherein the diameter of said inner core (11) is 80-95% of the diameter of said sleeve (10).

3. The connecting rod of simple door and window lock catch according to claim 1, wherein the locking rod (1) is a telescopic structure.

4. A simple door and window lock catch connecting rod according to claim 1 or 3, characterized in that the side of the lock catch (2) away from the lock rod (1) is provided with at least one locking piece (21); the lock plate is provided with a lock hole (22), and when the door is locked, the lock hole (22) is matched and clamped with a lock on the door frame.

5. A simple door and window lock catch connecting rod according to claim 4, characterized in that the lock catch (2) is provided with two parallel arranged locking pieces (21).

6. The connecting rod of simple door and window lock catch according to claim 4, wherein the diameter of the locking hole (22) is 60-70% of the width of the locking piece (21).

7. The connecting rod of simple door and window lock catch according to claim 1, wherein the lock catch (2) is provided with a groove (23).

8. A simple door and window lock catch connecting rod according to claim 1, characterized in that the thickness of the lock catch (2) is 40-60% of the length of the inner core (11); the width of the lock catch (2) is 90-95% of the diameter of the inner core (11).

9. The connecting rod of simple door and window lock catch according to claim 1, characterized in that the inner core (11) is provided with a through hole (13).

10. A numerical control processing method of the simple door and window lock catch connecting rod according to any one of claims 1 to 9.