CN210256798U

CN210256798U - CNC processing tool

Info

Publication number: CN210256798U
Application number: CN201920584730.9U
Authority: CN
Inventors: 丁灿满; 毕哲哲; 蔺永祥
Original assignee: Biel Crystal Manufactory Huizhou Ltd
Current assignee: Biel Crystal Manufactory Huizhou Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-04-07
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a CNC processing tool, including casing, locating component and cam link assembly, locating component includes base, fibre briquetting and rotatory pressure head, the fibre briquetting passes rotatory pressure head, it is rotatory pressure head will the fibre briquetting is pressed on the base, cam link assembly includes cam crank, spring, connecting screw, power application pole, cam crank will connecting screw with the power application pole links together, the spring is located on the connecting screw, connecting screw runs through the casing upper surface the base with the fibre briquetting. The utility model discloses simple structure, convenient to use through fixed and location wrist-watch ceramic cover plate, optimizes the loading step, reduces and goes up unloading time, improves production efficiency.

Description

CNC processing tool

Technical Field

The utility model relates to a processing tool, concretely relates to be applied to CNC processing tool of wrist-watch ceramic apron.

Background

Along with the development of science and technology, the continuous progress of manufacturing process, portable electronic products such as smart mobile phone, intelligent wrist-watch, panel computer provide convenient for people's life work, have become the indispensable product in people's life, and people also are more and more high to their requirement, including the material of fuselage. In recent years, ceramic is gradually applied to electronic products due to the characteristics of firmness and wear resistance, particularly intelligent watches, so that the appearance and the hand feeling of the watches are greatly improved, and the watches are regarded as artworks in the scientific and technological field by many people. Compared with the watch made of stainless steel, the ceramic watch has the advantages of light weight, abrasion resistance, corrosion resistance and good heat resistance, and is deeply favored by consumers.

Usually, ceramic cover plate is applied to intelligent wrist-watch, needs to process positions such as screw hole, last plane, four sides cambered surface on the ceramic cover plate. Although the ceramic cover plate has numerous advantages, the ceramic cover plate is high in hardness and large in brittleness, the watch ceramic cover plate is small in area, the positioning and fixing area is small, the requirement on machining precision is high, and therefore the watch ceramic cover plate is large in machining difficulty. At present, the common processing method is to fix the ceramic cover plate of the mobile phone on a numerical control machine (CNC) for processing. The existing fixing method is that a screw is used for fastening a pressing block to fix the ceramic cover plate on the jig, and the screw is dismounted to take out the pressing block after the ceramic cover plate is processed. Therefore, a new CNC machining jig needs to be designed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a CNC processing tool, this tool simple structure, convenient to use through fixed and location wrist-watch ceramic cover plate, optimizes the loading step, reduces and goes up unloading time, reduces the uncertainty of manual operation, improves production efficiency.

In order to solve the technical problem, the utility model adopts the following technical scheme: the CNC machining jig is mainly used for CNC machining of watch ceramic cover plates and comprises a shell, a positioning assembly and a cam connecting rod assembly, wherein the positioning assembly is positioned above the shell, and the cam connecting rod assembly is positioned in the shell and extends out of the side face of the shell; the positioning assembly comprises a base, a fiber pressing block and a rotary pressing head, the fiber pressing block penetrates through the rotary pressing head, and the rotary pressing head is rotated to press the fiber pressing block on the base; the cam connecting rod assembly comprises a cam crank, a spring, a connecting screw rod and a force applying rod, the connecting screw rod and the force applying rod are connected together through the cam crank, and the spring is positioned on the connecting screw rod; the connecting screw rod penetrates through the upper surface of the shell, the base and the fiber pressing block, and the rotary pressing head is fixed on the connecting screw rod through a plug screw.

According to the design concept of the utility model, the cam crank of the utility model comprises a cam and a crank, wherein the cam and the crank are designed integrally; the connecting screw rod is fixedly connected to the cam and is positioned in the shell; one side of the crank, which is far away from the cam, extends out of the shell, and the stressing rod is connected to one side of the crank, which is far away from the cam.

According to the design concept of the utility model, the eccentricity of the cam is 1.5 mm.

According to the utility model discloses a design concept, the base passes through the screw fixation and is in the upper surface of casing, including basement, sample platform and spacing boss, the shape size of spacing boss with the shape size looks adaptation at sample center, the size of sample platform with the size looks adaptation of sample.

According to the utility model discloses a design concept, the fibre briquetting with the shape on the relative surface of sample platform is in with placing the shape looks adaptation of sample bench sample.

According to the design concept of the utility model, the center of the fiber pressing block is provided with a through hole, and the shape and the size of the through hole are matched with the shape and the size of the rotary pressing head; the connecting screw rod penetrates through the through hole.

According to the utility model discloses a design concept, the upper surface of casing has been seted up and has been held the base groove of base.

According to the utility model discloses a design concept, logical groove has been seted up to the side of casing, the crank passes through logical groove stretches out the casing, the side that leads to the groove is provided with the scale that shows pressure size.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the base of the CNC processing jig is provided with the limiting boss matched with the central shape of the sample, and the sample is positioned on the base through the limiting boss without manual positioning; the stress application rod exerts an effect on the cam crank, so that the connecting screw drives the rotary pressure head to press the fiber pressing block downwards, a sample on the base sample table is fixed, manual rotation of screws is not needed for pressing and fixing, loading steps are optimized, the time for loading and unloading is shortened, the uncertainty of manual operation is effectively reduced, and the production efficiency is improved.

(2) The base passes through the screw fixation in tool casing top, can change the base according to the product design demand of difference, satisfies the needs of different productions.

(3) Rotatory pressure head is beaten the screw through the stopper and is linked to each other with connecting screw, when guaranteeing that the fibre briquetting passes rotatory pressure head, rotatory pressure head can rotate freely, provides the effort for the fixed sample of fibre briquetting, and the sample is fixed stable.

(4) The side of tool casing is provided with the scale, can easily learn the size of dowel bar overdraft, guarantees that the sample receives appropriate effort, avoids the sample damage, reduction in production cost.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a schematic perspective view of the cam link assembly of the present invention;

FIG. 4 is a schematic plan view of the structure of FIG. 1;

fig. 5 is a sectional view taken along a-a in fig. 4.

Description of the symbols of the drawings:

the device comprises a shell 1, a base 11 groove, a through groove 12, a scale 13, a positioning component 2, a base 21, a base 211, a sample stage 212, a limit boss 213, a fiber pressing block 22, a through hole 221, a rotary pressure head 23, a plug screw 24, a screw 25, a cam connecting rod component 3, a cam crank 31, a cam 311, a crank 312, a spring 32, a connecting screw 33, a force applying rod 34 and a screw 35.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1, the CNC processing jig comprises a housing 1, a positioning assembly 2 and a cam link assembly 3, wherein the positioning assembly 2 is fixedly installed above the housing 1, part of the cam link assembly 3 is located in the housing 1, and part of the assembly extends out of the side surface of the housing 1. The cam connecting rod component 3 is pressed downwards to fix a sample in the positioning component 2, manual screw fixation is not needed, loading steps are optimized, the time for loading and unloading is shortened, the sample is effectively prevented from shaking in the CNC machining process, and the production efficiency is improved.

As shown in fig. 1 and 2, the positioning assembly 2 includes a base 21, a fiber pressing block 22, and a rotary pressing head 23, wherein the fiber pressing block 22 is located on the surface of the base 21 through the rotary pressing head 23, the rotary pressing head 23 is connected with the cam link assembly 3 through the tucking screw 24, can freely rotate on a horizontal plane, and presses the fiber pressing block 22 to provide pressure for fixing a sample under the action of the cam link assembly 3.

Specifically, a through hole 221 is formed in the center of the fiber pressing block 22, and the shape and size of the through hole 221 are matched with the shape and size of the rotary pressing head 23. The rotating pressure head 23 penetrates through the through hole 221, that is, the fiber pressing block 22 penetrates through the rotating pressure head 23 and is located below the rotating pressure head 23, the rotating pressure head 23 is rotated to make the fiber pressing block 22 unable to penetrate through the through hole 221 and penetrate through the rotating pressure head 23, the fiber pressing block 22 is pressed on the base 21, and a gap exists between the fiber pressing block 22 and the rotating pressure head 23. When the cam link assembly 3 moves downwards, the rotary pressure head 23 moves downwards to press the fiber pressing block 22. Preferably, the rotary ram 23 is rotated 90 ° perpendicular to the fiber compact 22.

In addition, the base 21 is fixed in the base groove 11 on the upper surface of the housing 1 through the screw 25, the base 21 can be replaced according to different product design requirements, different production requirements are met, and the base 21 can be installed and debugged only once, so that the installation and debugging time of a jig during product replacement is reduced. The base 21 comprises a base 211, a sample stage 212 and a limit boss 213. The shape and size of the limiting boss 213 are matched with those of the center of the sample, and the size of the sample table 212 is matched with those of the sample. The sample passes through spacing boss 213 fixes a position, avoids artifical location, guarantees the accuracy that the sample placed the position.

Meanwhile, in order to ensure that the sample on the sample stage 212 is subjected to sufficient acting force, the shape of the surface of the fiber pressing block 22 opposite to the sample stage 212 is matched with the shape of the sample, namely the shape is a product profiling curved surface, and the sample is tightly fixed on the sample stage 212 during pressing.

As shown in fig. 2 and 3, the cam link assembly 3 includes a cam crank 31, a spring 32, a connecting screw 33, and a forcing rod 34, the cam crank 31 connects the connecting screw 33 and the forcing rod 34, and the spring 32 is located on the connecting screw 33. The connecting screw 33 penetrates through the upper surface of the shell 1, the base 21 and the fiber pressing block 22, and the rotary pressing head 23 is fixed on the connecting screw 33 through the driving screw 24. The forcing rod 34 presses down the cam crank 31 under the action of external force, the cam crank 31 drives the connecting screw 33 to move downwards, and then the rotary pressing head 23 is driven to press the fiber pressing block 22 downwards to fix the sample on the sample table 212.

Specifically, as shown in fig. 3, 4 and 5, the cam crank 31 includes a cam 311 and a crank 312, and the cam 311 and the crank 312 are integrally designed. The connecting screw rod 33 is fixed on the cam 311 through a screw 35, and one side of the crank 312 is connected with the cam 311 and is positioned inside the shell 1. One side of the crank 312, which is far away from the cam 311, extends out of the housing 1, and the forcing rod 34 is connected to one side of the crank 312, which is far away from the cam 311, and drives the connecting screw 33 to provide a forcing force for the positioning assembly 2.

To ensure that the connecting screw 33 moves downward under the effect of the downward pressure, the cam 311 has a certain eccentricity. The stressing rod 34 presses down the crank 312, and due to the existence of eccentricity, in the direction parallel to the cam 311 and the connecting screw rod 33, the length from the axis of the cam 311 to the surface of the cam 311 is longer, while the length of the connecting screw rod 33 is constant, and the connecting screw rod 33 drives the rotary pressure head 23 to press down. Preferably, the eccentricity of the cam 311 is 1.3-1.5 mm.

The spring 32 is located on the connecting screw 33 and clamped inside the housing 1, and supports the connecting screw 33. The connecting screw rod 33 is pressed downwards to exert force, the spring 32 is pressed to shrink, and the fiber pressing block 22 is slowly pressed on the sample of the sample table 212, so that the sample is prevented from being damaged due to direct impact force, and the production cost is reduced. In addition, the biasing force of the spring 32 is smaller than the biasing force of the biasing rod 34, and the sample is fixed to the sample stage 212 by the pressing down of the biasing rod 34, so that the sample is not shaken by the spring 32.

For the size of the observation effort of pushing down directly perceivedly, further guarantee the integrality of sample, as shown in fig. 1 and fig. 5, logical groove 12 has been seted up to the side of casing 1, the side that leads to groove 12 is provided with the scale 13 that shows the pressure size, crank 312 passes through it stretches out to lead to groove 12 casing 1. The force application rod 34 presses the cam crank 31 downwards from top to bottom, and whether the pressing force is proper or not can be known by looking at the scale on the graduated scale 13 corresponding to the cam crank 31. The lower the force applying rod 34 is, the larger the force applying force is, the smaller force region, the proper force region and the larger force region can be divided on the graduated scale 13, so as to ensure that the sample is properly pressed and firmly fixed on the sample stage 212.

The CNC processing jig of the utility model applies a pressing force to the cam crank through the forcing rod to drive the connecting screw rod to move downwards so as to drive the rotary pressing head to press and fix the fiber pressing block on the sample table, is simple to operate, does not need to manually rotate a screw to perform pressing and fixing, optimizes loading steps, reduces the time for loading and unloading, and improves production efficiency; in addition, the replaceable base is adopted, so that the requirements of different production can be met, and the application range of the jig is enlarged; simultaneously be in the side of casing is provided with the scale, avoids sample damage effectively, reduction in production cost.

Claims

1. A CNC machining jig is characterized by comprising a shell, a positioning assembly and a cam connecting rod assembly; the positioning assembly comprises a base, a fiber pressing block and a rotary pressing head, the fiber pressing block penetrates through the rotary pressing head, and the rotary pressing head is rotated to press the fiber pressing block on the base; cam link assembly includes cam crank, spring, connecting screw and application of force pole, cam crank will connecting screw with the application of force pole links together, the spring is located connecting screw is last, connecting screw runs through the casing upper surface the base with the fibre briquetting, rotatory pressure head is beaten the screw fixation through the stopper on the connecting screw.

2. The CNC machining jig of claim 1, wherein the cam crank comprises a cam and a crank, the cam and the crank are integrally designed, the connecting screw is fixedly connected to the cam and located inside the housing, one side of the crank, far away from the cam, extends out of the housing, and the stressing rod is connected to one side of the crank, far away from the cam.

3. The CNC machining jig of claim 1, wherein the base is fixed on the upper surface of the shell through screws and comprises a base, a sample table and a limiting boss, the limiting boss is matched with the sample table in shape and size, and the sample table is matched with the sample in size.

4. The CNC machining fixture of claim 1, wherein the base includes a base, a sample table, and a limit boss; the shape of the surface of the fiber pressing block opposite to the sample table is matched with the shape of a sample placed on the sample table.

5. The CNC machining jig of claim 1, wherein a through hole is formed in the center of the fiber pressing block, and the shape and size of the through hole are matched with those of the rotary pressing head; the connecting screw rod penetrates through the through hole.

6. The CNC machining jig of claim 1, wherein the housing has a base groove formed in an upper surface thereof.

7. The CNC machining jig of claim 2, wherein a through groove is formed in the side face of the housing, the crank extends out of the housing through the through groove, and a scale for displaying the pressure is arranged on the side of the through groove.

8. The CNC machining jig of claim 2, wherein the eccentricity of the cam is 1.3-1.5 mm.