CN114632902A

CN114632902A - Automatic continuous cold header for special-shaped silver contacts

Info

Publication number: CN114632902A
Application number: CN202210242605.6A
Authority: CN
Inventors: 黄光临; 彭志龙; 羊科; 崔宇文; 任其军
Original assignee: Wenzhou Juxing Technology Co ltd
Current assignee: Wenzhou Juxing Technology Co ltd
Priority date: 2022-03-13
Filing date: 2022-03-13
Publication date: 2022-06-17

Abstract

The invention relates to the technical field of silver contact production, in particular to an automatic continuous cold header for a special-shaped silver contact, which comprises a supporting table, a first cold heading bottom die, a second cold heading bottom die, a positioning and conveying device, a synchronous pressing device, a first stamping head and a second stamping head; the supporting table is horizontally arranged, and a feeding through hole, a first mounting hole, a second mounting hole and a discharging through hole are sequentially distributed on the supporting table; the first cold heading bottom die is fixedly arranged on a first mounting hole of the support table; the second cold heading bottom die is fixedly arranged on a second mounting hole of the support table; the positioning and conveying device is fixed right above the supporting platform; the synchronous pressing device is fixedly arranged in the positioning and conveying device; the first punching head and the second punching head are fixedly arranged on the synchronous pressing device; the first punching head and the second punching head both extend straight downward. This application can improve production efficiency, confirms pressure upset quality simultaneously.

Description

Automatic continuous cold header for special-shaped silver contacts

Technical Field

The invention relates to the technical field of silver contact production, in particular to an automatic continuous cold header for a special-shaped silver contact.

Background

The silver contact is widely used as the intersection point of mutual separation and contact when the electronic appliance is opened and closed, because the metal conductor terminal is easy to generate instant heating and spark at the contact moment, the contact point is easy to generate oxidation and electrolysis in the multi-frequency process of use, the contact point is enlarged and thickened, or is made of high polymer metal (more than two materials of copper and silver), and the contact point made of the high polymer metal or the enlarged and thickened point made of the same material is called as the silver contact.

Chinese patent CN202010164037.3 discloses an automatic continuous cold heading punching machine for special-shaped silver contacts, which comprises a feeding mechanism, a workbench, a first punching device, a second punching device, a material conveying mechanism and a demoulding mechanism; the feeding mechanism is arranged beside the workbench, the workbench comprises a stamping table, a stamping die, a blanking track and a support frame, the stamping die is embedded at the top end of the stamping table, the support frame is fixedly arranged on the working surface of the stamping table, and the working end of the support frame is positioned right above the stamping die; the first stamping device and the second stamping device are both fixedly arranged on the support frame, and the working directions of the first stamping device and the second stamping device are vertically downward and directly opposite to the die; the material conveying mechanism is positioned beside one end of the stamping table far away from the support frame; the demolding mechanism is fixedly arranged in the stamping table, is positioned right below the die and vertically penetrates through the die upwards at the working end of the demolding mechanism.

Above-mentioned scheme has realized the automatic cold-heading production of dysmorphism silver contact, but has ignored the degree of accuracy that dysmorphism silver contact moved during the cold-heading, and dysmorphism silver contact needs cold-heading processing many times when producing, and the device's defeated material mechanism passes through cylinder slip table and removes wide finger cylinder, and wide finger cylinder centre gripping dysmorphism silver contact removes, and pay-off position degree of accuracy is low, leads to the increase of cold-heading defective rate during the cold-heading, influences production efficiency simultaneously. There is a need for an automatic continuous cold heading machine for shaped silver contacts.

Disclosure of Invention

Based on this, it is necessary to provide an automatic continuous cold heading machine for special-shaped silver contacts aiming at the problems in the prior art. This application can improve production efficiency, confirms pressure upset quality simultaneously.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

an automatic continuous cold header for special-shaped silver contacts comprises a supporting table, a first cold heading bottom die, a second cold heading bottom die, a positioning and conveying device, a synchronous pressing device, a first stamping head and a second stamping head; the supporting platform is horizontally arranged, and a feeding through hole, a first mounting hole, a second mounting hole and a discharging through hole are sequentially distributed on the supporting platform; the first cold heading bottom die is fixedly arranged on a first mounting hole of the support table; the second cold heading bottom die is fixedly arranged on a second mounting hole of the support table; the positioning and conveying device is fixed right above the supporting platform; the synchronous pressing device is fixedly arranged in the positioning and conveying device; the first punching head and the second punching head are fixedly arranged on the synchronous pressing device; the first punching head and the second punching head both extend straight downward.

Preferably, the first cold heading bottom die comprises a first sizing sleeve, a first pressing block, a first limiting rod, a first limiting sleeve and a first spring; the first sizing sleeve is fixedly arranged at the position of a first mounting hole of the support table, and a limiting opening is formed in the first sizing sleeve; the first pressing block is slidably arranged in the limiting opening of the first shaping sleeve, and the abutting surface of the first pressing block is a plane; the first limiting rod is slidably arranged on the first shaping sleeve, and one end of the first limiting rod is fixedly connected with the first pressing block; the first limiting sleeve is sleeved on the first limiting rod, and the first limiting sleeve is fixed at the bottom of the first sizing sleeve; the first spring is arranged inside the first limiting sleeve, one end of the first spring is abutted against the first limiting sleeve, and the first spring is far away from the first limiting sleeve and is abutted against the first limiting rod.

Preferably, the second cold-heading bottom die comprises a second sizing sleeve, a second pressing block, a second limiting rod, a second limiting sleeve and a second spring; the second sizing sleeve is fixedly arranged at the position of a second mounting hole of the support table, and a limiting opening is formed in the second sizing sleeve; the second pressing block is slidably arranged in the limiting opening of the second sizing sleeve, and a convex block is arranged at the axis position of the abutting surface of the second pressing block; the second limiting rod is slidably arranged on the second shaping sleeve, and one end of the second limiting rod is fixedly connected with the second pressing block; the second limiting sleeve is sleeved on the second limiting rod and fixed at the bottom of the second sizing sleeve; the second spring sets up inside second spacing sleeve, and second spring one end is contradicted with second spacing sleeve, and the second spring is kept away from second spacing sleeve and is contradicted with the second gag lever post.

Preferably, the positioning and conveying device comprises a chain plate type conveyor, an industrial camera and a limiting tool; the chain plate type conveyor is fixedly arranged on the supporting platform; the limiting tools are arranged on the chain plate type conveyor at equal intervals and are fixedly connected with the chain plate type conveyor; the industrial camera is fixedly arranged on the chain plate type conveyor.

Preferably, the limiting tool comprises a mounting sleeve and an elastic buckle; the mounting sleeve is fixedly mounted on the chain plate conveyor, a limiting through hole is formed in the axis position of the mounting sleeve, and a plurality of mounting clamping grooves are formed in the inner wall of the limiting through hole; the elastic buckle is provided with a plurality of and is distributed in the mounting clamping groove of the mounting sleeve.

Preferably, the elastic buckle comprises a mounting block and a flexible clamping strip; the mounting block is fixedly clamped inside the mounting clamping groove of the mounting sleeve, and a groove is formed inside the mounting block; toughness card strip fixed mounting is equipped with the lug at the lateral part of installation piece, the lateral part of toughness strip.

Preferably, the synchronous pressing device comprises a fixed frame, a crank rod, a rotary driver, a transmission push rod, an installation push plate and a first limit guide rail; the fixed frame is fixedly arranged in the chain plate type conveyor; the crank rod is rotationally arranged on the fixed frame; the first limit guide rails are provided with a plurality of first limit guide rails and are fixedly arranged on the fixed frame; the rotary driver is fixedly arranged on the fixed frame, and the output end of the rotary driver is in transmission connection with the crank rod; the mounting push plate is arranged below the crank rod; one end of the transmission push rod is rotatably connected with the crank rod, and the end of the transmission push rod, which is far away from the crank rod, is rotatably connected with the installation push plate.

Preferably, one end of the first punching head is provided with an internal threaded hole, and one end of the first punching head, which is far away from the threaded hole, is provided with a punching plane.

Preferably, the one end of second punching press head is equipped with the internal thread hole, and the one end that the screw hole was kept away from to the second punching press head is equipped with the punching press concave surface.

Preferably, the feeding device comprises a mounting bracket, a second limit guide rail, a material pushing block, a sensor and a linear driver; the mounting bracket is fixedly mounted below the supporting platform; the second limiting guide rail is fixedly arranged on the feeding through hole of the support platform; the guide rail is arranged below the second limiting guide rail, the guide rail is fixedly arranged on the mounting bracket, and the bottom of the guide rail is provided with an opening; the material pushing block is slidably arranged at an opening of the material guiding rail, and an installation groove is formed in the material pushing block; the sensor is fixedly arranged in the mounting groove of the material pushing block; the linear driver is fixedly arranged on the mounting bracket, and the output end of the linear driver is fixedly connected with the bottom of the material pushing block.

Compared with the prior art, the application has the beneficial effects that:

1. the method comprises the steps that a blank passes through a feeding through hole of a supporting table to enter a positioning and conveying device through feeding equipment, the positioning and conveying device drives the blank to move to a first cold heading bottom die position, a synchronous pressing device drives a first punching head and a second punching head to synchronously press downwards, the first punching head passes through the positioning and conveying device to be pressed against the blank, the blank is pressed into the first cold heading bottom die to be subjected to preliminary punch forming, after the blank is pressed, the synchronous pressing device drives the first punching head and the second punching head to return to the original positions, the first cold heading bottom die drives the blank subjected to preliminary press to ascend, the positioning and conveying device drives the blank subjected to preliminary press to move to the second cold heading bottom die position, the synchronous pressing device presses downwards to drive the first punching head and the second punching head to press downwards, the second punching head presses downwards and presses against the blank subjected to preliminary press, and the blank subjected to preliminary press is pressed into the shape of a silver contact inside the second cold heading bottom die, the synchronous pressing device drives the first stamping head and the second stamping head to return to the original position, the second cold heading bottom die drives the cold-covered special-shaped silver contact to ascend, the positioning conveying device drives the special-shaped silver contact to move to the discharging through hole of the supporting table, and the discharging device pushes the special-shaped silver contact to be separated from the positioning conveying device. This application can improve production efficiency, confirms pressure upset quality simultaneously.

2. This application will drive the stock and remove on first briquetting through location conveyor, synchronous push down the device area and promote first punching press head and the synchronous push down of second punching press head, first punching press head passes location conveyor and supports with the stock and press, the stock receives extrusion and first briquetting together descend and get into inside the spacing mouth of first sizing sleeve, first gag lever post descends simultaneously, first spring receives the extrusion, the stock is flattened into and is the same with first briquetting form, the preliminary stamping forming of stock back, synchronous push down the device and drive first punching press head and the first return of second punching press head normal position, first spring promotes first briquetting return normal position simultaneously, make the stock of preliminary stamping forming break away from first sizing sleeve, can effectively cooperate first punching press head to carry out preliminary stamping forming to the stock.

3. The positioning and conveying device drives the preliminarily formed blank to move onto the second pressing block, the synchronous pressing device presses the first pressing head and the second pressing head downwards, the second pressing head presses the formed blank downwards, the preliminarily formed blank and the second pressing block descend together to enter the inside of a limiting opening of the second shaping sleeve, the second limiting rod descends simultaneously, the second spring is extruded, the axis position of the preliminarily formed blank is extruded and protruded by a lug of the second pressing block to form the special-shaped silver contact shape, the synchronous pressing device drives the first pressing head and the second pressing head to return to the original position, the second spring simultaneously pushes the second pressing block to return to the original position, the pressed special-shaped silver contact is separated from the second shaping sleeve, and the special-shaped blank can be effectively matched with the second pressing head to press the specially-shaped preliminary blank into the special-shaped stamping forming silver contact shape.

4. This application is preferred through industry camera to be CCD visual detection camera, and chain slat conveyor drives the stopper and removes, and the stopper is used for driving the spacing removal of cold-heading stock, and when the stopper removed the assigned position, the CCD visual detection camera was used for detecting whether the stopper position moved the assigned position, and CCD visual detection makes a video recording can effectual improvement stock removal accuracy.

5. This application is used for spacing stock position through the telescopic spacing through-hole of installation, drives the stock when the installation sleeve removes and keeps the location to remove, and the elasticity buckle is used for blockking the stock rebound and removes, can effectual spacing stock position through the telescopic spacing through-hole of installation.

6. This application supports with the lug of toughness card strip when passing the installation sleeve through first punching press head and presses, and the toughness card strip is to the inside shrink of installation slot of installation piece, and first punching press head cooperation first cold-heading die block carries out stamping forming to the stock, and first punching press head rises behind the stamping forming, and first punching press head rises after rising, and the toughness card strip pops out and resets, and first cold-heading die block promotes stamping forming's stock simultaneously and rises, and the stock rises and contradicts with the lug of toughness card strip too high. The placement position of the blank is effectively ensured.

7. This application leads to the preferred servo motor of rotary actuator, and servo motor drives the crank lever and rotates, drives the transmission push rod when the crank lever rotates and pushes down the removal, and the transmission push rod promotes the installation push pedal decline when pushing down, and the installation push pedal promotes first punching press head and second punching press head and prolongs first spacing guide rail and push down. The first punching head and the second punching head can be effectively controlled to synchronously press down to the designated position through the crank rod.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a front view of the present application;

FIG. 3 is a side view of the present application;

FIG. 4 is a cross-sectional view at section A-A of FIG. 3;

FIG. 5 is a front view of a first cold-heading die of the present application;

FIG. 6 is a cross-sectional view at section B-B of FIG. 5;

FIG. 7 is a front view of a second cold-heading die of the present application;

FIG. 8 is a cross-sectional view at section C-C of FIG. 7;

FIG. 9 is a perspective view of the positioning and delivery device of the present application;

FIG. 10 is a front view of the stop of the present application;

FIG. 11 is a sectional view at section D-D of FIG. 10;

FIG. 12 is a perspective view of the elastic clip of the present application

FIG. 13 is a front view of the synchronization press of the present application;

FIG. 14 is a perspective view of the synchronization hold-down device of the present application;

FIG. 15 is a perspective view of a first punch of the present application;

FIG. 16 is a perspective view of a second punch head of the present application;

FIG. 17 is a perspective view of a loading device of the present application;

fig. 18 is a perspective view of a shaped silver contact.

The reference numbers in the figures are:

a 1-shaped silver contacts;

1-a support table;

2-first cold heading bottom die; 2 a-a first sizing sleeve; 2 b-a first pressing block; 2 c-a first stop lever; 2 d-a first limit sleeve; 2 e-a first spring;

3-second cold heading bottom die; 3 a-a second sizing sleeve; 3 b-a second pressing block; 3 c-a second stop lever; 3 d-a second limit sleeve; 3 e-a second spring;

4-positioning the conveying device; 4 a-a drag conveyor; 4 b-an industrial camera; 4 c-a limiting tool; 4c 1-mounting sleeve; 4c 2-elastic snap; 4c 3-mounting block; 4c 4-malleable snap strip;

5-synchronous pressing device; 5 a-a fixing frame; 5 b-a crank lever; 5 c-a rotary drive; 5 d-a transmission push rod; 5 e-installing a push plate; 5 f-a first limit guide rail;

6-a first punch; 6 a-punching plane;

7-a second punch; 7 a-punching concave;

8-a feeding device; 8 a-a mounting bracket; 8 f-linear drive; 8 c-a guide rail; 8 d-a material pushing block; 8 e-a sensor;

9-blanking device.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 18, the present application provides:

an automatic continuous cold header for special-shaped silver contacts comprises a support table 1, a first cold heading bottom die 2, a second cold heading bottom die 3, a positioning and conveying device 4, a synchronous pressing device 5, a first stamping head 6 and a second stamping head 7; the supporting table 1 is horizontally arranged, and a feeding through hole, a first mounting hole, a second mounting hole and a discharging through hole are sequentially distributed on the supporting table 1; the first cold heading bottom die 2 is fixedly arranged on a first mounting hole of the support table 1; the second cold-heading bottom die 3 is fixedly arranged on a second mounting hole of the support table 1; the positioning and conveying device 4 is fixed right above the support table 1; the synchronous pressing device 5 is fixedly arranged inside the positioning and conveying device 4; the first punching head 6 and the second punching head 7 are both fixedly arranged on the synchronous pressing device 5; the first punch 6 and the second punch 7 each extend downwardly.

Based on the embodiment, the technical problem that this application wants to solve is continuous stable cold-heading dysmorphism silver contact. Therefore, the blank passes through a feeding through hole of a supporting table 1 to enter a positioning and conveying device 4 through feeding equipment, the positioning and conveying device 4 drives the blank to move to the position of a first cold heading bottom die 2, a synchronous pressing device 5 drives a first punching head 6 and a second punching head 7 to synchronously press downwards, the first punching head 6 passes through the positioning and conveying device 4 to be pressed against the blank, the blank is pressed into the first cold heading bottom die 2 to be subjected to preliminary punch forming, after pressing is completed, the synchronous pressing device 5 drives the first punching head 6 and the second punching head 7 to return to the original positions, the first cold heading bottom die 2 drives the blank subjected to preliminary pressing to ascend, the positioning and conveying device 4 drives the blank subjected to preliminary forming to move to the position of a second cold heading bottom die 3, the synchronous pressing device 5 presses downwards to drive the first punching head 6 and the second punching head 7 to press downwards, the second punching head 7 presses downwards to be pressed against the blank subjected to preliminary forming, preliminary fashioned stock is pressed the inside dysmorphism silver contact shape that becomes of second cold-heading die block, and synchronous push down device 5 drives first punching press head 6 and second punching press head 7 and returns the normal position, and second cold-heading die block 3 drives the good dysmorphism silver contact of cold-heading and rises, and location conveyor 4 drives the unloading through-hole position that special-shaped silver contact removed brace table 1, and unloader promotes special-shaped silver contact and breaks away from location conveyor 4. This application can improve production efficiency, confirms pressure upset quality simultaneously.

Further, as shown in fig. 5 and 6:

the first cold-heading bottom die 2 comprises a first sizing sleeve 2a, a first pressing block 2b, a first limiting rod 2c, a first limiting sleeve 2d and a first spring 2 e; the first sizing sleeve 2a is fixedly arranged at the position of a first mounting hole of the support table 1, and a limiting opening is formed in the first sizing sleeve 2 a; the first pressing block 2b is slidably installed in the limiting opening of the first shaping sleeve 2a, and the abutting surface of the first pressing block 2b is a plane; the first limiting rod 2c is slidably mounted on the first shaping sleeve 2a, and one end of the first limiting rod 2c is fixedly connected with the first pressing block 2 b; the first limiting sleeve 2d is sleeved on the first limiting rod 2c, and the first limiting sleeve 2d is fixed at the bottom of the first sizing sleeve 2 a; first spring 2e sets up inside first stop collar 2d, and first spring 2e one end is contradicted with first stop collar 2d, and first stop collar is kept away from to first spring 2e and is contradicted with first gag lever post 2 c.

Based on the above embodiment, the technical problem that this application wants to solve is to cooperate first punching press 6 punching press to carry out preliminary stamping forming to the stock. Therefore, the blank is driven to move onto the first pressing block 2b through the positioning and conveying device 4, the synchronous pressing device 5 is used for pushing the first punching head 6 and the second punching head 7 to be synchronously pressed downwards, the first punching head 6 penetrates through the positioning and conveying device 4 to be pressed against the blank, the blank is extruded and descends together with the first pressing block 2b to enter the limiting opening of the first shaping sleeve 2a, the first limiting rod 2c descends simultaneously, the first spring 2e is extruded, the blank is pressed into the shape identical to that of the first pressing block 2b, and after the blank is subjected to primary stamping forming, the synchronous pressing device 5 drives the first punching head 6 and the second punching head 7 to return to the original positions, the first spring 2e simultaneously pushes the first pressing block 2b to return to the original positions, so that the blank subjected to preliminary punching forming is separated from the first shaping sleeve 2a, and the first punching head 6 can be effectively matched to perform preliminary punching forming on the blank.

Further, as shown in fig. 7 and 8:

the second cold-heading bottom die 3 comprises a second sizing sleeve 3a, a second pressing block 3b, a second limiting rod 3c, a second limiting sleeve 3d and a second spring 3 e; the second sizing sleeve 3a is fixedly arranged at the position of a second mounting hole of the support table 1, and a limiting opening is formed in the second sizing sleeve 3 a; the second pressing block 3b is slidably mounted in a limiting opening of the second sizing sleeve 3a, and a convex block is arranged at the axis position of a contact surface of the second pressing block 3 b; a second limiting rod 3c is slidably mounted on the second sizing sleeve 3a, and one end of the second limiting rod 3c is fixedly connected with the second pressing block 3 b; the second limiting sleeve 3d is sleeved on the second limiting rod 3c, and the second limiting sleeve 3d is fixed at the bottom of the second sizing sleeve 3 a; the second spring 3e is arranged inside the second limiting sleeve 3d, one end of the second spring 3e is abutted against the second limiting sleeve 3d, and the second spring 3e is far away from the second limiting sleeve 3d and is abutted against the second limiting rod 3 c.

Based on the above embodiment, the technical problem that this application wants to solve is that cooperation second punching press head 7 is stamped the preliminary stamping forming's billet into special-shaped silver contact shape. Therefore, the application drives the preliminarily formed blank to move to the second pressing block through the positioning conveying device 4, the synchronous pressing device 5 presses down to drive the first pressing head 6 and the second pressing head 7 to press down, the second pressing head 7 presses down to be pressed against the formed blank, the preliminarily formed blank and the second pressing block 3b descend together to enter the limiting opening of the second shaping sleeve 3a, the second limiting rod 3c descends simultaneously, the second spring 3e is extruded, the axial position of the preliminarily formed blank is extruded and raised by the convex block of the second pressing block 3b to form the shape of the special-shaped silver contact, the synchronous pressing device 5 drives the first pressing head 6 and the second pressing head 7 to return to the original position, the second spring 3e pushes the second pressing block 3b to return to the original position simultaneously, so that the pressed special-shaped silver contact is separated from the second shaping sleeve 3a, the second punching head 7 can be effectively matched to punch the blank subjected to preliminary punch forming into the special-shaped silver contact shape.

Further, as shown in fig. 9:

the positioning and conveying device 4 comprises a chain plate type conveyor 4a, an industrial camera 4b and a limiting tool 4 c; the chain plate type conveyor 4a is fixedly arranged on the supporting platform 1; the limiting tools 4c are arranged in a plurality and distributed on the chain plate type conveyor 4a at equal intervals, and the limiting tools 4c are fixedly connected with the chain plate type conveyor 4 a; the industrial camera 4b is fixedly mounted on the chain slat conveyor 4 a.

Based on the above embodiments, the technical problem that the present application intends to solve is to position and move a cold heading blank. For this reason, this application is preferred through industrial camera 4b to be CCD visual detection camera, and chain slat conveyor 4a drives stop tool 4c and removes, and stop tool 4c is used for driving the spacing removal of cold-heading stock, and when stop tool 4c removed the assigned position, CCD visual detection camera was used for detecting whether stop tool 4c position arrived and removes the assigned position, and CCD visual detection makes a video recording can effectual improvement stock removal accuracy.

Further, as shown in fig. 10 and 11:

the limiting tool 4c comprises a mounting sleeve 4c1 and an elastic buckle 4c 2; the mounting sleeve 4c1 is fixedly mounted on the chain plate conveyor 4a, a limiting through hole is formed in the axis position of the mounting sleeve 4c1, and a plurality of mounting clamping grooves are formed in the inner wall of the limiting through hole; the elastic buckles 4c2 are provided with a plurality of buckles and are distributed inside the mounting clamping grooves of the mounting sleeve 4c 1.

Based on the above embodiments, the technical problem that the present application intends to solve is to drive the blank to move in a limited manner. For this reason, this application is used for spacing stock position through the spacing through-hole of installation sleeve 4c1, drives the stock when installation sleeve 4c1 removes and keeps the location removal, and elasticity buckle 4c2 is used for blockking the stock rebound and removes, and spacing stock position that can be effectual through the spacing through-hole of installation sleeve 4c 1.

Further, as shown in fig. 12:

the elastic buckle 4c2 comprises a mounting block 4c3 and a flexible clamping strip 4c 4; the mounting block 4c3 is fixedly clamped in the mounting clamping groove of the mounting sleeve 4c1, and a groove is formed in the mounting block 4c 3; the flexible clamping strip 4c4 is fixedly arranged at the side part of the mounting block 4c3, and the side part of the flexible strip is provided with a convex block.

Based on the above embodiments, the technical problem that the present application intends to solve is to prevent the blank from rising off the mounting sleeve 4c 1. For this reason, this application supports with the lug of toughness card strip 4c4 when passing installation sleeve 4c1 through first punching press head 6 and presses, toughness card strip 4c4 is to the inside shrink of installation draw-in groove of installation piece 4c3, first punching press head 6 cooperates first cold-heading die block 2 to carry out stamping forming to the stock, first punching press head 6 rises after the stamping forming, first punching press head 6 rises after rising, toughness card strip 4c4 pops out the restoration, first cold-heading die block 2 promotes the stock of stamping forming simultaneously and rises, the stock rises to contradict with the lug of toughness card strip 4c4 excessively high. The placement position of the blank is effectively ensured.

Further, as shown in fig. 13 and 14:

the synchronous pressing device 5 comprises a fixed frame 5a, a crank rod 5b, a rotary driver 5c, a transmission push rod 5d, a mounting push plate 5e and a first limiting guide rail 5 f; the fixed frame 5a is fixedly arranged in the chain plate type conveyor 4 a; the crank rod 5b is rotatably arranged on the fixed frame 5 a; the first limit guide rails 5f are provided with a plurality of first limit guide rails and are fixedly arranged on the fixed frame 5 a; the rotary driver 5c is fixedly arranged on the fixed frame 5a, and the output end of the rotary driver 5c is in transmission connection with the crank rod 5 b; the mounting push plate 5e is arranged below the crank rod 5 b; one end of the transmission push rod 5d is rotatably connected with the crank rod 5b, and the end, far away from the crank rod 5b, of the transmission push rod 5d is rotatably connected with the mounting push plate 5 e.

Based on the above embodiment, the technical problem that the present application intends to solve is to synchronously push the first punch head 6 and the second punch head 7 to be positioned and pressed down. For this reason, this application is preferred servo motor through rotary actuator 5c, and servo motor drives crank lever 5b and rotates, drives transmission push rod 5d when crank lever 5b rotates and pushes down the removal, and transmission push rod 5d pushes down and promotes installation push plate 5e and descend, and installation push plate 5e promotes first punching head 6 and second punching head 7 and prolongs first spacing guide rail 5f and pushes down. The first punch 6 and the second punch 7 can be effectively controlled to be synchronously pressed down to the designated position by the crank lever 5 b.

Further, as shown in fig. 15:

one end of the first punching head 6 is provided with an internal threaded hole, and one end of the first punching head 6, which is far away from the threaded hole, is provided with a punching plane 6 a.

Based on the above embodiments, the technical problem that the present application intends to solve is to press the blank into a plane in cooperation with the first cold-heading bottom die 2. For this reason, this application is used for through the screw hole of first punching press head 6 with installation push pedal 5e fixed connection, and the punching press plane 6a of first punching press head 6 is used for extrudeing the stock upper end, cooperates first cold-heading die block 2 and tentatively punches into flat with the stock.

Further, as shown in fig. 16:

one end of the second stamping head 7 is provided with an internal threaded hole, and one end, far away from the threaded hole, of the second stamping head 7 is provided with a stamping concave surface 7 a.

Based on the above embodiment, the technical problem that the application wants to solve is to cooperate the second cold-heading die block 3 to punch the blank of the flat plate into the special-shaped silver contact. For this reason, this application is used for through the internal thread hole of second punching press head 7 with installation push pedal 5e fixed connection, the punching press concave surface 7a of second punching press head 7 and dull and stereotyped stock mortgage, cooperates the extrusion of second cold-heading die block 3 to extrude the protruding special-shaped silver contact of axle center position extrusion of dull and stereotyped stock.

Further, as shown in fig. 17:

the feeding device 8 comprises a mounting bracket 8a, a second limit guide rail, a guide rail 8c, a material pushing block 8d, a sensor 8e and a linear driver 8 f; the mounting bracket 8a is fixedly arranged below the support platform 1; the second limiting guide rail is fixedly arranged on the feeding through hole of the support table 1; the guide rail 8c is arranged below the second limiting guide rail, the guide rail 8c is fixedly arranged on the mounting bracket 8a, and the bottom of the guide rail 8c is provided with an opening; the material pushing block 8d is slidably arranged at an opening of the material guiding rail 8c, and an installation groove is formed in the material pushing block 8 d; the sensor 8e is fixedly arranged in the mounting groove of the material pushing block 8 d; the linear driver 8f is fixedly arranged on the mounting bracket 8a, and the output end of the linear driver 8f is fixedly connected with the bottom of the material pushing block 8 d.

Based on the above embodiment, the technical problem that this application wants to solve is the location material loading. Therefore, the blank is sequentially conveyed to the material guide rail 8c through the vibration disc, the blank is guided to the material pushing block 8d through the material guide rail 8c, the sensor 8e is preferably an infrared sensor 8e, the infrared sensor 8e senses the position of the blank, the linear driver 8f is preferably a long-axis cylinder, the long-axis cylinder pushes the material pushing block 8d to ascend, and the material pushing block 8d drives the blank to ascend to the limiting tool 4c of the positioning and conveying device 4. The blank is placed in an effective positioning mode, and labor is saved.

The blank is fed into a positioning and conveying device 4 through a feeding device through a feeding through hole of a supporting table 1, the positioning and conveying device 4 drives the blank to move to a first cold heading bottom die 2, a synchronous pressing device 5 drives a first punching head 6 and a second punching head 7 to be pressed downwards synchronously, the first punching head 6 passes through the positioning and conveying device 4 to be pressed against the blank, the blank is pressed into the first cold heading bottom die 2 to be subjected to preliminary punch forming, after the blank is pressed, the synchronous pressing device 5 drives the first punching head 6 and the second punching head 7 to return to the original positions, the first cold heading bottom die 2 drives the blank subjected to preliminary punch forming to ascend, the positioning and conveying device 4 drives the blank subjected to preliminary punch forming to move to a second cold heading bottom die 3, the synchronous pressing device 5 presses the blank to drive the first punching head 6 and the second punching head 7 to be pressed downwards, the second punching head 7 presses the blank against the blank subjected to preliminary punch forming, preliminary fashioned stock is pressed the inside dysmorphism silver contact shape that becomes of second cold-heading die block, and synchronous push down device 5 drives first punching press head 6 and second punching press head 7 and returns the normal position, and second cold-heading die block 3 drives the good dysmorphism silver contact of cold-heading and rises, and location conveyor 4 drives the unloading through-hole position that special-shaped silver contact removed brace table 1, and unloader promotes special-shaped silver contact and breaks away from location conveyor 4. This application can improve production efficiency, confirms pressure upset quality simultaneously.

The above examples only show one or more embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An automatic continuous cold header for special-shaped silver contacts is characterized by comprising a supporting table (1), a first cold header bottom die (2), a second cold header bottom die (3), a positioning and conveying device (4), a synchronous pressing device (5), a first stamping head (6) and a second stamping head (7); the supporting table (1) is horizontally arranged, and a feeding through hole, a first mounting hole, a second mounting hole and a discharging through hole are sequentially distributed on the supporting table (1); the first cold heading bottom die (2) is fixedly arranged on a first mounting hole of the support table (1); the second cold heading bottom die (3) is fixedly arranged on a second mounting hole of the support table (1); the positioning and conveying device (4) is fixed right above the supporting platform (1); the synchronous pressing device (5) is fixedly arranged in the positioning and conveying device (4); the first punching head (6) and the second punching head (7) are fixedly arranged on the synchronous pressing device (5); the first punch (6) and the second punch (7) each extend downwardly.

2. The automatic continuous cold heading machine for shaped silver contacts according to claim 1, characterized in that the first cold heading die block (2) comprises a first sizing sleeve (2 a), a first pressing block (2 b), a first limiting rod (2 c), a first limiting sleeve (2 d) and a first spring (2 e); the first sizing sleeve (2 a) is fixedly arranged at the position of a first mounting hole of the support table (1), and a limiting opening is formed in the first sizing sleeve (2 a); the first pressing block (2 b) is slidably arranged in a limiting opening of the first shaping sleeve (2 a), and the contact surface of the first pressing block (2 b) is a plane; the first limiting rod (2 c) is slidably mounted on the first shaping sleeve (2 a), and one end of the first limiting rod (2 c) is fixedly connected with the first pressing block (2 b); the first limiting sleeve (2 d) is sleeved on the first limiting rod (2 c), and the first limiting sleeve (2 d) is fixed at the bottom of the first shaping sleeve (2 a); first spring (2 e) set up inside first spacing sleeve (2 d), and first spring (2 e) one end is contradicted with first spacing sleeve (2 d), and first spacing sleeve is kept away from in first spring (2 e) and is contradicted with first gag lever post (2 c).

3. The automatic continuous cold heading machine for shaped silver contacts according to claim 1, wherein the second cold heading bottom die (3) comprises a second sizing sleeve (3 a), a second pressing block (3 b), a second limiting rod (3 c), a second limiting sleeve (3 d) and a second spring (3 e); the second sizing sleeve (3 a) is fixedly arranged at the position of a second mounting hole of the support table (1), and a limiting opening is formed in the second sizing sleeve (3 a); the second pressing block (3 b) is slidably arranged in a limiting opening of the second sizing sleeve (3 a), and a convex block is arranged at the axis position of the abutting surface of the second pressing block (3 b); a second limiting rod (3 c) is slidably mounted on the second sizing sleeve (3 a), and one end of the second limiting rod (3 c) is fixedly connected with the second pressing block (3 b); the second limiting sleeve (3 d) is sleeved on the second limiting rod (3 c), and the second limiting sleeve (3 d) is fixed at the bottom of the second sizing sleeve (3 a); the second spring (3 e) is arranged inside the second limiting sleeve (3 d), one end of the second spring (3 e) is abutted against the second limiting sleeve (3 d), and the second spring (3 e) is far away from the second limiting sleeve (3 d) and is abutted against the second limiting rod (3 c).

4. The automatic continuous cold heading machine for shaped silver contacts according to claim 1, characterized in that the positioning and conveying device (4) comprises a chain slat conveyor (4 a), an industrial camera (4 b) and a stop (4 c); the chain plate type conveyor (4 a) is fixedly arranged on the supporting platform (1); the limiting tools (4 c) are arranged in a plurality and are distributed on the chain plate type conveyor (4 a) at equal intervals, and the limiting tools (4 c) are fixedly connected with the chain plate type conveyor (4 a); the industrial camera (4 b) is fixedly arranged on the chain plate type conveyor (4 a).

5. The automatic continuous cold heading machine for shaped silver contacts according to claim 4, characterized in that the stop (4 c) comprises a mounting sleeve (4 c 1) and an elastic catch (4 c 2); the mounting sleeve (4 c 1) is fixedly mounted on the chain plate conveyor (4 a), a limiting through hole is formed in the axis position of the mounting sleeve (4 c 1), and a plurality of mounting clamping grooves are formed in the inner wall of the limiting through hole; the elastic buckles (4 c 2) are provided with a plurality of elastic buckles and distributed inside the mounting clamping grooves of the mounting sleeve (4 c 1).

6. The automatic continuous cold heading machine for shaped silver contacts according to claim 5, characterized in that the elastic snap (4 c 2) comprises a mounting block (4 c 3) and a flexible snap strip (4 c 4); the mounting block (4 c 3) is fixedly clamped in the mounting clamping groove of the mounting sleeve (4 c 1), and a groove is formed in the mounting block (4 c 3); the flexible clamping strip (4 c 4) is fixedly arranged at the side part of the mounting block (4 c 3), and the side part of the flexible strip is provided with a convex block.

7. The automatic continuous cold heading machine for shaped silver contacts according to claim 4, characterized in that the synchronous pressing device (5) comprises a fixed frame (5 a), a crank rod (5 b), a rotary driver (5 c), a transmission push rod (5 d), a mounting push plate (5 e) and a first limit guide rail (5 f); the fixed frame (5 a) is fixedly arranged in the chain plate type conveyor (4 a); the crank rod (5 b) is rotationally arranged on the fixed frame (5 a); the first limit guide rails (5 f) are provided with a plurality of first limit guide rails and are fixedly arranged on the fixed frame (5 a); the rotary driver (5 c) is fixedly arranged on the fixed frame (5 a), and the output end of the rotary driver (5 c) is in transmission connection with the crank rod (5 b); the mounting push plate (5 e) is arranged below the crank rod (5 b); one end of the transmission push rod (5 d) is rotationally connected with the crank rod (5 b), and the end, far away from the crank rod (5 b), of the transmission push rod (5 d) is rotationally connected with the installation push plate (5 e).

8. The automatic continuous cold heading machine for the special-shaped silver contacts as claimed in claim 1, characterized in that one end of the first punching head (6) is provided with an internal threaded hole, and one end of the first punching head (6) far away from the threaded hole is provided with a punching plane (6 a).

9. The automatic continuous cold heading machine for the shaped silver contacts as claimed in claim 1, wherein one end of the second punching head (7) is provided with an internal threaded hole, and one end of the second punching head (7) far away from the threaded hole is provided with a punching concave surface (7 a).

10. The automatic continuous cold heading machine for shaped silver contacts according to claim 1, characterized in that the loading device (8) comprises a mounting bracket (8 a), a second limit guide rail, a guide rail (8 c), a pusher block (8 d), a sensor (8 e) and a linear driver (8 f); the mounting bracket (8 a) is fixedly mounted below the support table (1); the second limiting guide rail is fixedly arranged on the feeding through hole of the support table (1); the guide rail (8 c) is arranged below the second limiting guide rail, the guide rail (8 c) is fixedly arranged on the mounting bracket (8 a), and the bottom of the guide rail (8 c) is provided with an opening; the material pushing block (8 d) is slidably arranged at an opening of the material guiding rail (8 c), and an installation groove is formed in the material pushing block (8 d); the sensor (8 e) is fixedly arranged in the mounting groove of the material pushing block (8 d); the linear driver (8 f) is fixedly arranged on the mounting bracket (8 a), and the output end of the linear driver (8 f) is fixedly connected with the bottom of the material pushing block (8 d).