阅读说明：本技术 一种用于具有两种缺口板材的生产设备及方法 (Production equipment and method for plate with two notches ) 是由 张文利 安碧霞 张二争 盖建敏 蒲耀文 刘涛 王兴辉 王磊 郭军方 刘帅 刘建博 于 2021-08-09 设计创作，主要内容包括：本发明提供了一种用于具有两种缺口板材的生产设备及方法,属于缺口模具技术领域,包括下模板、第一定位块、第一定位销、第二定位块以及第二定位销；下模板设有冲裁孔、连接孔和定位孔,冲裁孔为轴对称结构,第一定位块和第一定位销对两个板材进行横向定位和竖向定位,用于异形缺口的加工；第二定位块和第二定位销分别用于对板材进行横向定位和竖向定位,用于倒角缺口的加工。本发明提供的用于具有两种缺口板材的生产设备,通过第二定位销和第二定位块的尺寸代替尺寸不同的第一定位销和第一定位块,无需改变生产模具,就可在两个板材上同时冲裁形成异形缺口和倒角缺口两种不同缺口的加工,提高了生产效率。(The invention provides production equipment and a method for a plate with two gaps, which belong to the technical field of gap molds, and comprise a lower template, a first positioning block, a first positioning pin, a second positioning block and a second positioning pin; the lower die plate is provided with a blanking hole, a connecting hole and a positioning hole, the blanking hole is of an axisymmetric structure, and the first positioning block and the first positioning pin are used for transversely positioning and vertically positioning the two plates and are used for processing the special-shaped notch; the second positioning block and the second positioning pin are respectively used for transversely positioning and vertically positioning the plate and are used for processing the chamfer notches. According to the production equipment for the plate with the two notches, the sizes of the second positioning pin and the second positioning block are used for replacing the first positioning pin and the first positioning block which are different in size, the production mould is not required to be changed, the two plates can be simultaneously blanked to form the two different notches of the special-shaped notch and the chamfer notch, and the production efficiency is improved.)

1. A production facility for sheet material with two types of notches, comprising:

the lower die plate is provided with a blanking hole, a connecting hole opposite to the blanking hole and two positioning holes positioned at two sides of the blanking hole; the lower template is used for mounting two plates which are respectively positioned at two sides of the blanking hole; the blanking hole is of an axisymmetric structure and is used for simultaneously blanking two plates;

the first positioning block is arranged on the lower template and detachably connected with the connecting hole; two sides of the first positioning block transversely position the two plates for processing the special-shaped gap;

the first positioning pins are arranged in the two positioning holes respectively; the two first positioning pins are used for vertically positioning the two plates and are used for machining the special-shaped notches;

the second positioning block is arranged on the lower template and detachably connected with the connecting hole; two sides of the first positioning block transversely position the two plates for processing a chamfer gap; the width dimension of the second positioning block is different from that of the first positioning block;

the two second positioning pins are respectively used for being arranged in the two positioning holes; the two second positioning pins are used for vertically positioning the two plates and are used for machining the chamfer notches; the second dowel pin has a radial dimension that is different from a radial dimension of the first dowel pin.

2. The manufacturing apparatus of claim 1, wherein the lower plate has a first mounting groove corresponding to the punching hole, a second mounting groove is formed on a bottom surface of the first mounting groove, the connecting hole is formed in the second mounting groove, and the first positioning block and the second positioning block are respectively mounted in the second mounting groove and the first mounting groove.

3. The production equipment for the plate with two gaps as claimed in claim 2, wherein the first positioning block and the second positioning block are provided with through holes corresponding to the connecting holes; the first positioning block and the second positioning block are detachably connected with the lower template through pin shafts penetrating through the through holes and the connecting holes respectively.

4. The production facility for sheet material with two kinds of notches as set forth in claim 3, wherein there are two of said connecting holes, and two of said connecting holes are alternately arranged.

5. The production apparatus for a plate material with two kinds of notches as set forth in claim 1, wherein said first positioning pin comprises:

the positioning rod is arranged in the positioning hole;

the cylindrical boss is fixedly arranged at the upper end of the positioning rod; the outer circular surface of the cylindrical boss is used for being in contact connection with the side surface of the plate.

6. The manufacturing apparatus for a plate material with two kinds of notches as set forth in claim 1, wherein said second positioning block is provided at its lower end with a receiving groove for receiving said first positioning block.

7. The production facility for sheet material with two types of nicks as recited in claim 1, wherein said production facility for sheet material with two types of nicks further comprises:

the upper template is positioned above the lower template; the lower end of the upper template is provided with a punch matched with the blanking hole; the lower end of the upper template is also provided with a guide post, and the lower template is provided with a guide hole in sliding fit with the guide post;

and the driving mechanism is connected with the upper template and is used for driving the upper template and the punch to move up and down.

8. A production method for a sheet material with two types of notches, comprising the production apparatus for a sheet material with two types of notches as set forth in any one of claims 1 to 7, characterized by further comprising:

placing two plates on the lower template, wherein the two plates are respectively positioned at two sides of the blanking hole; one end parts of the two plates are positioned above the blanking hole;

a first positioning block is arranged on the lower template and is detachably connected with the connecting hole; installing two first positioning pins in the positioning holes on the lower template, and positioning the two plates for the first time;

starting an upper template and a punch to move downwards, wherein the punch punches the two plates to form special-shaped gaps;

removing the first positioning block and the two first positioning pins, and turning over the two plates to enable the other ends of the plates to be located above the blanking holes;

a second positioning block is arranged on the lower template and is detachably connected with the connecting hole; installing two second positioning pins in the positioning holes on the lower template, and positioning the two plates for the second time;

and starting the upper die plate and the punch to move downwards, wherein the punch punches the two plates to form chamfer gaps.

9. The method for producing a plate material with two kinds of notches as set forth in claim 8, wherein after the first positioning pin and the first positioning block are installed, the irregular notches of the plurality of plate materials are continuously processed; and then replacing the second positioning pin and the second positioning block, and processing the chamfer gaps of the plurality of plates with the processed special-shaped gaps.

Technical Field

The invention belongs to the technical field of notch dies, and particularly relates to production equipment and a production method for a plate with two notches.

Background

The upper door beam of the side wall of the railway freight car C70E type open wagon is connected with the upper side beam to play a role of connecting the middle door. The both sides of a tip of last door beam are equipped with dysmorphism breach and chamfer breach respectively, just also have the chamfer on the dysmorphism breach, because the overall dimension of last door beam is great, adopt numerical control plasma cutting production, this kind of production mode inefficiency, and the product area hypotenuse after the numerical control cutting, it is big to lead to bending size error, influences equipment and the welding quality of whole car side wall and well door.

Disclosure of Invention

The invention aims to provide production equipment and a production method for a plate with two notches, and the production equipment and the production method are used for solving the technical problems that the efficiency of processing a special-shaped notch and a chamfer notch on an upper door beam is low, the quality is poor and the production of a side wall of a whole vehicle is influenced in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a production apparatus for a plate material having two kinds of notches, comprising:

the lower die plate is provided with a blanking hole, a connecting hole opposite to the blanking hole and two positioning holes positioned at two sides of the blanking hole; the lower template is used for mounting two plates which are respectively positioned at two sides of the blanking hole; the blanking hole is of an axisymmetric structure and is used for simultaneously blanking two plates;

the first positioning block is arranged on the lower template and detachably connected with the connecting hole; two sides of the first positioning block transversely position the two plates for processing the special-shaped gap;

the first positioning pins are arranged in the two positioning holes respectively; the two first positioning pins are used for vertically positioning the two plates and are used for machining the special-shaped notches;

the second positioning block is arranged on the lower template and detachably connected with the connecting hole; two sides of the first positioning block transversely position the two plates for processing a chamfer gap; the width dimension of the second positioning block is different from that of the first positioning block;

the two second positioning pins are respectively used for being arranged in the two positioning holes; the two second positioning pins are used for vertically positioning the two plates and are used for machining the chamfer notches; the second dowel pin has a radial dimension that is different from a radial dimension of the first dowel pin.

In a possible implementation manner, a first mounting groove corresponding to the blanking hole is formed in the lower template, a second mounting groove is formed in the bottom surface of the first mounting groove, the connecting hole is formed in the second mounting groove, and the first positioning block and the second positioning block are respectively mounted in the second mounting groove and the first mounting groove.

In a possible implementation manner, through holes corresponding to the connecting holes are formed in the first positioning block and the second positioning block; the first positioning block and the second positioning block are detachably connected with the lower template through pin shafts penetrating through the through holes and the connecting holes respectively.

In a possible implementation manner, the number of the connecting holes is two, and the two connecting holes are arranged in a staggered manner.

In one possible implementation, the first positioning pin includes:

the positioning rod is arranged in the positioning hole;

the cylindrical boss is fixedly arranged at the upper end of the positioning rod; the outer circular surface of the cylindrical boss is used for being in contact connection with the side surface of the plate.

In a possible implementation manner, the lower end of the second positioning block is provided with a receiving groove for receiving the first positioning block.

In one possible implementation, the production equipment for a sheet material with two types of notches further comprises:

the upper template is positioned above the lower template; the lower end of the upper template is provided with a punch matched with the blanking hole; the lower end of the upper template is also provided with a guide post, and the lower template is provided with a guide hole in sliding fit with the guide post;

and the driving mechanism is connected with the upper template and is used for driving the upper template and the punch to move up and down.

The production equipment for the plate with two notches has the advantages that: compared with the prior art, the invention is used for the production equipment of the plate with two gaps, two plates are respectively placed on the lower template and are respectively positioned at two sides of the blanking hole, one end parts of the two plates close to each other respectively enter the blanking hole, the first positioning pins are respectively arranged on the two connecting holes, the first positioning block is arranged between the two plates, the two plates are firstly positioned by two side surfaces of the two first positioning pins and the first positioning block, then the upper template and the punch head are started to move towards the blanking hole and are punched into the special-shaped gap at one end part of the two plates, then the two plates are turned over, the other end parts of the two plates are both positioned right above the blanking hole, the second positioning pins and the first positioning block are replaced by the second positioning pins and the second positioning blocks, and the sizes of the second positioning pins and the second positioning blocks are increased or reduced, enabling the two plates to respectively generate certain displacement in the transverse direction and the vertical direction, further meeting the size of the chamfer gap, realizing the second positioning of the two plates, then starting the upper template and the punch head again to move downwards towards the blanking hole, and punching the other ends of the two plates into special-shaped gaps; the size of second locating pin and second locating piece replaces first locating pin and the first locating piece of size difference, need not to change production mould, just can the blanking form the processing of two kinds of different breachs of dysmorphism breach and chamfer breach simultaneously on two panels, has improved production efficiency to the production mode of adoption punching press has improved the quality of panel processing dysmorphism breach and chamfer breach.

Another object of the present invention is to provide a method for producing a sheet material with two types of notches, including any one of the above-mentioned production apparatuses for a sheet material with two types of notches, further including:

placing two plates on the lower template, wherein the two plates are respectively positioned at two sides of the blanking hole; one end parts of the two plates are positioned above the blanking hole;

a first positioning block is arranged on the lower template and is detachably connected with the connecting hole; installing two first positioning pins in the positioning holes on the lower template, and positioning the two plates for the first time;

starting an upper template and a punch to move downwards, wherein the punch punches the two plates to form special-shaped gaps;

removing the first positioning block and the two first positioning pins, and turning over the two plates to enable the other ends of the plates to be located above the blanking holes;

a second positioning block is arranged on the lower template and is detachably connected with the connecting hole; installing two second positioning pins in the positioning holes on the lower template, and positioning the two plates for the second time;

and starting the upper die plate and the punch to move downwards, wherein the punch punches the two plates to form chamfer gaps.

In a possible implementation manner, after the first positioning pin and the first positioning block are installed, the special-shaped notches of a plurality of plates are continuously machined; and then replacing the second positioning pin and the second positioning block, and processing the chamfer gaps of the plurality of plates with the processed special-shaped gaps.

The invention provides a production method for plates with two notches, which is characterized in that two plates are respectively placed on a lower template and are respectively positioned at two sides of a blanking hole, one end parts of the two plates close to each other respectively enter the upper part of the blanking hole, first positioning pins are respectively arranged on two connecting holes, a first positioning block is arranged between the two plates, the two plates are positioned for the first time by two side surfaces of the two first positioning pins and the first positioning block, then an upper template and a punch head are started to move towards the blanking hole and are punched into special-shaped notches at one end parts of the two plates, then the two plates are turned over, the other end parts of the two plates are both positioned right above the blanking hole, a second positioning pin and a second positioning block are used for replacing the first positioning pin and the first positioning block, and the two plates respectively generate certain displacement in the transverse direction and the vertical direction by increasing or reducing the sizes of the second positioning pin and the second positioning block, the size of the chamfer gap is further met, the two plates are positioned for the second time, then the upper die plate and the punch are started again to move downwards towards the blanking hole, and the other ends of the two plates are punched into special-shaped gaps; the size of second locating pin and second locating piece replaces first locating pin and the first locating piece of size difference, need not to change production mould, just can the blanking form the processing of two kinds of different breachs of dysmorphism breach and chamfer breach simultaneously on two panels, has improved production efficiency to the production mode of adoption punching press has improved the quality of panel processing dysmorphism breach and chamfer breach.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a production apparatus for a plate material with two notches according to an embodiment of the present invention;

FIG. 2 is a first cross-sectional view of a production apparatus for a sheet material having two types of notches according to an embodiment of the present invention;

FIG. 3 is a second cross-sectional view of a production apparatus for a sheet material having two types of notches according to an embodiment of the present invention;

FIG. 4 is a first usage state diagram of a production apparatus for a plate material with two notches according to an embodiment of the present invention;

FIG. 5 is a second usage state diagram of the production equipment for a plate material with two notches according to an embodiment of the present invention;

FIG. 6 is a third diagram illustrating a usage status of the production equipment for a plate material with two notches according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a plate according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first positioning pin according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a lower template; 11. punching holes; 12. a guide hole; 2. a first positioning block; 21. a pin shaft; 3. a first positioning pin; 31. positioning a rod; 32. a cylindrical boss; 4. a second positioning block; 5. a second positioning pin; 6. mounting a template; 61. a punch; 62. a guide post; 7. a plate material; 71. a special-shaped notch; 72. and (6) chamfering the notch.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 7, a production apparatus for a plate material with two notches according to the present invention will now be described. A production device for a plate with two gaps comprises a lower template 1, a first positioning block 2, a first positioning pin 3, a second positioning block 4 and a second positioning pin 5; the lower template 1 is provided with a blanking hole 11, a connecting hole opposite to the blanking hole 11 and two positioning holes positioned at two sides of the blanking hole 11; the lower template 1 is used for installing two plates 7 which are respectively positioned at two sides of the blanking hole 11; the blanking hole 11 is in an axisymmetric structure and is used for simultaneously blanking two plates 7; the first positioning block 2 is arranged on the lower template 1 and is detachably connected with the connecting hole; two sides of the first positioning block 2 are used for transversely positioning the two plates 7 and processing the special-shaped gap 71; the number of the first positioning pins 3 is two, and the first positioning pins are respectively used for being arranged in the two positioning holes; the two first positioning pins 3 vertically position the two plates 7 and are used for processing the special-shaped notches 71; the second positioning block 4 is arranged on the lower template 1 and is detachably connected with the connecting hole; two sides of the first positioning block 2 are used for transversely positioning the two plates 7 and processing the chamfer notches 72; the width dimension of the second positioning block 4 is different from the width dimension of the first positioning block 2; the number of the second positioning pins 5 is two, and the two second positioning pins are respectively used for being arranged in the two positioning holes; the two second positioning pins 5 vertically position the two plates 7 for processing the chamfer notches 72; the radial dimension of the second dowel 5 is different from the radial dimension of the first dowel 3.

Compared with the prior art, the production equipment for the plate with two notches is characterized in that two plates 7 are respectively placed on a lower template 1 and are respectively positioned at two sides of a blanking hole 11, one end parts of the two plates 7 close to each other respectively enter the upper part of the blanking hole 11, first positioning pins 3 are respectively arranged on two connecting holes, a first positioning block 2 is arranged between the two plates 7, the two plates 7 are positioned for the first time by two sides of the two first positioning pins 3 and the first positioning block 2, then an upper template 6 and a punch 61 are started to move towards the blanking hole 11, one end parts of the two plates 7 are punched into special-shaped notches 71, then the two plates 7 are turned over, the other end parts of the two plates 7 are both positioned right above the blanking hole 11, and a second positioning pin 5 and a second positioning block 4 are used for replacing the first positioning pin 3 and the first positioning block 2, the sizes of the second positioning pin 5 and the second positioning block 4 are increased or reduced to enable the two plates 7 to respectively generate certain displacement in the transverse direction and the vertical direction, so that the size of the chamfer gap 72 is met, the two plates 7 are positioned for the second time, then the upper die plate 6 and the punch 61 are started again to move downwards towards the blanking hole 11, and the other ends of the two plates 7 are punched into special-shaped gaps 71; the size of the second positioning pin 5 and the second positioning block 4 replaces the first positioning pin 3 and the first positioning block 2 which are different in size, a production die does not need to be changed, the two plates 7 can be simultaneously blanked to form the processing of two different gaps, namely the special-shaped gap 71 and the chamfer gap 72, the production efficiency is improved, and the quality of the plate 7 for processing the special-shaped gap 71 and the chamfer gap 72 is improved by adopting a stamping production mode.

Referring to fig. 1 to 6, as a specific embodiment of the present invention, a lower mold plate 1 is provided with a first mounting groove corresponding to a blanking hole 11, a second mounting groove is provided on a bottom surface of the first mounting groove, a connecting hole is provided in the second mounting groove, a first positioning block 2 and a second positioning block 4 are respectively mounted in the second mounting groove and the first mounting groove, that is, the first mounting groove and the second mounting groove form a stepped structure, the first positioning block 2 is mounted in the second mounting groove, the second positioning block 4 is mounted in the first mounting groove, and the second positioning block 4 and the first positioning block 2 are respectively mounted by means of the first mounting groove and the second mounting groove.

Referring to fig. 4 to 6, as a specific embodiment of the present invention for a production apparatus for a plate material with two gaps, through holes corresponding to the connecting holes are formed on the first positioning block 2 and the second positioning block 4; first locating piece 2 and second locating piece 4 can be dismantled with lower bolster 1 through the round pin axle 21 that passes through-hole and connecting hole respectively and be connected, when getting into in second mounting groove and the first mounting groove respectively on first locating piece 2 of installation and second locating piece 4, through-hole on first locating piece 2 and the second locating piece 4 aligns with the connecting hole is coaxial respectively, then use round pin axle 21 to pass through-hole and connecting hole and realize being connected of first locating piece 2 and lower bolster 1, second locating piece 4 and lower bolster 1 are connected.

Referring to fig. 4 to 6, as a specific embodiment of the present invention for a production apparatus having two kinds of notched plates, two connecting holes are alternately disposed, and the corresponding first positioning block 2 and second positioning block 4 are also respectively provided with interlaced through holes, so that the first positioning block 2 and second positioning block 4 are fixed by two pins 21 in an alternate manner, thereby improving the fixing effect of the first positioning block 2 and second positioning block 4.

Referring to fig. 1 and 8, as a specific embodiment of the present invention for manufacturing equipment with two kinds of notched plates, the first positioning pin 3 includes a positioning rod 31 and a cylindrical boss 32, and the positioning rod 31 is installed in the positioning hole; the cylindrical boss 32 is fixedly arranged at the upper end of the positioning rod 31; the excircle face of cylinder boss 32 is used for being connected with the side contact of panel 7, locating lever 31 and locating hole cooperation installation, the external diameter of cylinder boss 32 is greater than the external diameter of locating lever 31, consequently, install the back in the locating hole at locating lever 31, cylinder boss 32 supports the side of panel 7 and the contact of the lateral surface of cylinder boss 32 on lower bolster 1, play the purpose to panel 7 location, it is the same with the structure of first locating pin 3 to set up second locating pin 5, cylinder boss 32 external diameter on the first locating pin 3 is less than the cylinder boss 32 external diameter on the second locating block 4, and then reach the purpose to the change of panel 7 position, and locating lever 31 on first locating pin 3 is the same with locating lever 31 size on the second locating pin 5. The first positioning pin is arranged to be a spring positioning pin, the first positioning pin does not need to be detached when the second positioning pin is replaced, and the second positioning pin can be directly installed.

Referring to fig. 1 to 3, as an embodiment of the present invention for manufacturing equipment with two types of notched plates, the lower end of the second positioning block 4 is provided with an accommodating groove for accommodating the first positioning block 2, so that when the second positioning block 4 is installed, the second positioning block 4 can be directly installed on the first positioning block 2 without detaching the first positioning block 2. The first positioning block 2 is provided with a screw hole, the second positioning block 4 is provided with a mounting hole corresponding to the screw hole, and when the second positioning block 4 is mounted on the first positioning block 2, the second positioning block 4 is fixed on the first positioning block 2 by using bolts, screws and the like which pass through the mounting hole and the screw hole.

Referring to fig. 1 to 3, as a specific embodiment of the production equipment for two kinds of notched plates provided by the present invention, the production equipment for two kinds of notched plates further includes an upper template 6 and a driving mechanism, wherein the upper template 6 is located above the lower template 1; the lower end of the upper template 6 is provided with a punch 61 matched with the blanking hole 11; the lower end of the upper template 6 is also provided with a guide post 62, the lower template 1 is provided with a guide hole 12 in sliding fit with the guide post 62, a driving mechanism is connected with the upper template 6 and used for driving the upper template 6 and the punch 61 to move up and down, the upper template 6 is positioned right above the lower template 1, the punch 61 is fixedly installed on the lower end face of the upper template 6, the punch 61 is positioned right above the blanking hole 11, the driving mechanism is started to control the upper template 6 and the punch 61 to move towards the lower template 1 and the blanking hole 11, and the punch 61 interacts with the two plates 7 when entering the blanking hole 11, and one end parts of the two plates 7 are processed to form a special-shaped notch 71 or a chamfer notch 72; and the guide post 62 is arranged on the upper template 6, the guide hole 12 is arranged on the lower template 1, the guide post 62 is connected in the guide hole 12 in a sliding way, the purpose of guiding the upper template 6 to move is achieved, and the upper template 6 can move up and down more accurately and stably.

In the drawings, the embodiment of the present invention also provides a production method for a sheet material with two types of notches, the production method for the sheet material with two types of notches includes any one of the production apparatuses for the sheet material with two types of notches described above, and further includes:

placing two plates 7 on the lower template 1, wherein the two plates 7 are respectively positioned at two sides of the blanking hole 11; one end parts of the two plates 7 are positioned above the blanking holes 11;

the first positioning block 2 is arranged on the lower template 1 and is detachably connected with the connecting hole; installing two first positioning pins 3 in the positioning holes on the lower template 1, and positioning two plates 7 for the first time;

starting the upper die plate 6 and the punch 61 to move downwards, and punching the punch 61 on the two plates 7 to form special-shaped gaps 71;

removing the first positioning block 2 and the two first positioning pins 3, and turning over the two plates 7 to enable the other ends of the plates 7 to be located above the blanking holes 11;

a second positioning block 4 is arranged on the lower template 1 and is detachably connected with the connecting hole; installing two second positioning pins 5 in the positioning holes on the lower template 1, and performing second positioning on the two plates 7;

the upper die plate 6 and the punch 61 are actuated to move downwards, and the punch 61 punches out the chamfer notches 72 on the two plates 7.

The invention provides a production method for plates with two notches, which is characterized in that two plates 7 are respectively placed on a lower template 1 and are respectively positioned at two sides of a blanking hole 11, one end parts of the two plates 7 close to each other respectively enter the blanking hole 11, first positioning pins 3 are respectively arranged on two connecting holes, a first positioning block 2 is arranged between the two plates 7, the two plates 7 are positioned for the first time by two sides of the two first positioning pins 3 and the first positioning block 2, then an upper template 6 and a punch 61 are started to move towards the blanking hole 11, one end parts of the two plates 7 are punched into special-shaped notches 71, then the two plates 7 are turned over, the other end parts of the two plates 7 are both positioned right above the blanking hole 11, the first positioning pins 3 and the first positioning block 2 are replaced by a second positioning pin 5 and a second positioning block 4, and the sizes of the second positioning pin 5 and the second positioning block 4 are increased or reduced, enabling the two plates 7 to respectively generate certain displacement in the transverse direction and the vertical direction, further meeting the size of the chamfer gap 72, realizing the second positioning of the two plates 7, then starting the upper template 6 and the punch 61 again to move downwards towards the blanking hole 11, and punching the other ends of the two plates 7 into special-shaped gaps 71; the size of the second positioning pin 5 and the second positioning block 4 replaces the first positioning pin 3 and the first positioning block 2 which are different in size, a production die does not need to be changed, the two plates 7 can be simultaneously blanked to form the processing of two different gaps, namely the special-shaped gap 71 and the chamfer gap 72, the production efficiency is improved, and the quality of the plate 7 for processing the special-shaped gap 71 and the chamfer gap 72 is improved by adopting a stamping production mode.

The punched hole 11 is a T-shaped hole, and two opposite side edges of the T-shaped hole have the same profile as the two special-shaped notches 71, so that the punch 61 can process the special-shaped notches 71 on the two plates 7 by one-time punching. The edge angle of the irregular cutout 71 has a chamfer C12, so that a corresponding protrusion shaped as an isosceles right triangle is provided on the T-shaped punch 61 for machining the chamfer C12 of the irregular cutout 71. The chamfer notch 72 to be processed on the plate 7 is a chamfer C8, and when the second positioning shaft and the second positioning block 4 are installed, the radius of the second positioning pin 5 is larger than the radius of the first positioning pin 3 by 4cm, and the width of the second positioning block 4 is larger than the width of the first positioning block 2 by 8cm, so after the second positioning block 4 and the second positioning pin 5 are installed, the plate 7 is moved by 4cm downward and leftward respectively, and the protrusion part is punched and processed into the chamfer notch 72 of the chamfer C8 at the other end part of the plate 7.

As a specific embodiment of the method for producing a plate material with two notches provided by the present invention, after the first positioning pin 3 and the first positioning block 2 are installed, the irregular notches 71 of the plurality of plate materials 7 are continuously processed; then, replacing the second positioning pin 5 and the second positioning block 4, and processing chamfer notches 72 on the plurality of plates 7 with the processed special-shaped notches 71; when the irregular-shaped notches 71 and the chamfer notches 72 on the plates 7 are machined, after the first positioning pin 3 and the first positioning block 2 are installed, the irregular-shaped notches 71 of the plates 7 are continuously machined; then, replacing the second positioning pin 5 and the second positioning block 4, and then processing the chamfer notch 72 again on the plate 7 which is processed with the special-shaped notch 71; through this kind of mode has reduced the change between first locating pin 3 and first locating piece 2, second locating pin 5 and the second locating piece 4, save time for processing production efficiency.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.