CN205110527U - Automobile panel deburring cut -out press instruments used for education - Google Patents

Abstract

The utility model provides a teaching instrument for trimming and punching dies of automobile covering parts. The teaching instrument includes an upper mold and a lower mold. The upper mold mainly consists of a stripping plate, a trimming insert, a pressing core and a punching device. The lower die mainly consists of a lower die pressing core, a waste knife, a pneumatic ejector pin and a guide post and guide sleeve. The utility model case reduces the trimming and punching mold of the automobile cover, uses lighter resin materials for 3D printing, and uses magnets to connect the main parts and components to achieve the purpose of detachment and achieve the effect of simulating the movement of parts. It solves the problem that the automobile mold is large in size, heavy in weight and complex in structure, and it is impossible to bring the physical mold to the teaching only by viewing the three-dimensional structure diagram. The teaching instrument has the characteristics of simple structure, low cost, convenient disassembly and assembly, and easy to carry, and can satisfy students' abilities of hands-on brain and all-round development.

Description

A teaching instrument for trimming and punching dies of automobile panels

technical field

The utility model relates to a teaching instrument for trimming and punching molds of automobile cover parts, in particular to the way of adopting strong magnets at the joints, which can realize the disassembly and assembly demonstration of installation parts, and belongs to the technical field of teaching instruments.

Background technique

With the development of the automobile industry, the automobile panel mold is an important process equipment for automobile body production, and the trimming and punching mold is the focus and difficulty of the second mold design course of the automobile panel mold design course.

At present, many colleges and universities have a course on automotive panel mold design. In this course, the content is abstract and difficult to understand, and students lack interest in learning. All kinds of demonstration courseware are rigid, without authenticity, and cannot arouse students' ability to learn and explore. The teaching effect is far inferior to that of physical teaching instruments. Therefore, the utility model case reduces the mold of the automobile cover part, uses lighter resin materials for 3D printing, and uses magnets to connect the main parts and components to achieve the purpose of detachment and achieve the effect of simulating the movement of parts.

Contents of the invention

In order to solve the problems of the prior art, the embodiment of the utility model provides a teaching instrument for trimming and punching dies of automobile panels, and the technical scheme is as follows:

A trimming and punching die for an automobile cover part is composed of an upper die, a lower die and a pressing core. It is characterized in that: the upper mold is composed of lifting lug device, guide sleeve, punch base, punch, side pin, nitrogen spring, stripper plate, limit bolt and trimming insert; the lower mold is composed of limit block, limit Pin, guide post, punching lower die pressing core, trimming lower die pressing core, lifting lug device, guide sleeve, positioning block and waste knife; the pressing core is composed of trimming pressing core and punching pressing core, There are magnet mounting holes and guide plates on the pressing core.

The trimming and punching die for automobile panels is a compound die, which is a die that completes two processes at the same station in one stroke of the press, and the die adopts the method of vertical trimming and punching. In order to facilitate 3D printing, the mold is cut from the middle, the trimming mold is on the left side, and the punching mold is on the right side.

The trimming line of a kind of automobile cover part is generally an irregular 3D curved surface, so the trimming mold adopts an inlay structure, which is composed of six trimming inlays, and a magnet is installed at the connection between the trimming inlay and the upper mold hole, and the demonstration of disassembly and assembly of trimming inserts can be realized by installing magnets.

The stripping plate is used to prevent product deformation and material return when trimming and punching, and the stripping plate is limited by side pins. The compression force of the unloading plate adopts nitrogen spring, and the nitrogen spring is replaced by a real object in this teaching instrument.

The upper die base and the pressing core are guided by an inner guide plate, and the pressing core realizes edge trimming and punching movement through a nitrogen spring, and the movement stroke is limited by the limit bolt fixed on the upper die base. This movement can be simulated by hand.

In order to facilitate 3D printing and save materials, the punching die on the right only prints the punch with the largest diameter to make an activity demonstration. The punch and the punch base, the punch base and the upper die base have magnet mounting holes. The mandrel cover of punching lower mold pressing material adopts the form of round pin anti-rotation.

The trimming binder core and the punching binder core are printed separately, and a magnet installation hole is left at the junction of the binder core and the lower mold. After the magnet is installed, the free disassembly and assembly demonstration of the part can be realized.

The waste knife is installed on the drawing flange trimming die, and is used to cut off the whole circle of waste, and the installation position of the waste knife avoids the seam of the cutting edge of the insert line. In order to prevent the waste knife from being displaced by lateral force, a retaining wall is designed behind the waste knife. A magnet installation hole is reserved at the connection between the waste knife and the lower die, and the disassembly and assembly demonstration of the waste knife can be realized through the magnet installation hole.

Described waste knife is provided with waste slide plate before and after, and punching waste falls into the waste box, and this mold is used in teaching instrument, so waste slide plate, waste box and transport connecting plate adopt iron sheet to replace.

The upper mold and the lower mold are guided by guide pillars and guide sleeves. The guide pillars and guide sleeves can be taken out separately for demonstration. The unloading plate and the pressing core are guided by guide plates. There are magnet mounting holes at the joints of the guide plates. The guide plates can realize Disassembly demo.

The trimming and punching die is relatively long, and four guide posts and guide sleeves are respectively arranged on both sides of the die to improve the strength of the die.

The movement of the upper die and the lower die is limited by a limit block and a limit pin.

The bottom of the lower mold base of the trimming die is equipped with a pneumatic ejector pin, and after the mold closing is completed, the workpiece is ejected through the pneumatic ejector pin, and a magnet mounting hole is left at the joint between the pneumatic ejector pin and the lower mold base, and the pneumatic ejector pin can be used separately. Take out the demo.

The lower die pressing material core and the lower die seat are positioned by a positioning block, and a magnet mounting hole is left at the joint, through which the lower die pressing material core can be freely disassembled.

The beneficial effects of the utility model are:

The automobile mold is large in size, heavy in weight and complex in structure, which solves the problem that it is impossible to bring the physical mold to the teaching process only by viewing the three-dimensional structure diagram in the teaching process.

The teaching aid of the utility model adopts lighter resin material for 3D printing by scaling according to a certain ratio, and displays the mold structure, which is light in weight, low in cost, and can be reused.

The teaching aid of the utility model adopts magnets to connect the main parts and components, which can realize the purpose of disassembly and demonstration, and achieve the effect of simulating the movement of parts, and improve the ability of students to master professional knowledge.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the lower die of the present utility model.

Fig. 2 is a structural schematic diagram of the upper die of the present utility model.

Fig. 3 is a structural schematic diagram of the edge-trimming binder core of the present invention.

Fig. 4 is a structural schematic diagram of the punching pressing core of the present invention.

Fig. 5 is a schematic diagram of the structure of the pneumatic mandrel of the present invention.

In the figure: 1-lower mold, 2-limiting block, 3-limiting pin, 4-guide column, 5-punching lower mold pressing core, 6-trimming lower mold pressing core, 7-hanging lug device, 8 -guide sleeve, 9-positioning block, 10-waste knife, 11-hanging lug device, 12-guide sleeve, 13-punch base, 14-punch, 15-side pin, 16-nitrogen spring, 17-discharge Plate, 18-upper die, 19-limit bolt, 20-trimming insert, 21-trimming press core, 22-magnet installation hole, 23-guide plate, 24-punching press core, 25-pneumatic top pole.

detailed description

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

Referring to accompanying drawing 1, the lower mold 1 of the present utility model is made up of limit block 2, limit pin 3, guide column 4, punching lower mold pressing material core 5, trimming lower mold pressing material core 6, lifting lug device 7, guide sleeve 8. The positioning block 9 and the scrap knife 10 are formed.

Referring to accompanying drawing 2, the upper mold 18 of the present utility model is made up of lug device 11, guide sleeve 12, punch base 13, punch 14, side pin 15, nitrogen spring 16, unloading plate 17, limit bolt 19 and repair The side panel 20 is composed.

] Referring to accompanying drawing 3, trimming binder core 21 of the present utility model is made up of magnet installation hole 22 and guide plate 23.

Referring to accompanying drawing 4, punching press core 24 of the present utility model is made up of magnet installation hole 22 and guide plate 23.

The trimming and punching die for automobile panels is a compound die, which is a die that completes two processes at the same station in one stroke of the press. The die adopts the method of vertical trimming and punching. In order to facilitate 3D printing, the mold is cut from the middle, the trimming mold is on the left side, and the punching mold is on the right side.

The trimming line of a car cover part is generally an irregular 3D curved surface, so the trimming mold adopts an insert structure, which is composed of six trimming inserts 20, and the connection between the trimming inserts 20 and the upper mold 18 is installed with a magnet hole, and the demonstration of disassembly and assembly of trimming inserts can be realized by installing magnets.

The unloading plate 17 plays the role of preventing product deformation and material return when trimming and punching, and the unloading plate 17 adopts side pins 15 to limit the position. The compression force of the unloading plate adopts a nitrogen gas spring 16, and the nitrogen gas spring 16 is replaced by a real object.

The upper die 18 and the pressing core 21 are guided by the inner guide plate 23, and the pressing core 21 realizes the trimming and punching movement through the nitrogen spring 16, and the movement stroke is limited by the limit bolt 19 fixed on the upper die base. This movement can be simulated by hand.

In order to facilitate 3D printing and save materials, the punching die on the right only prints the punch 14 with the largest diameter to make a demonstration. The punch 14 and the punch base 13, the punch base 13 and the upper die base 18 have magnet mounting holes. The punching lower mold pressing material core 5 mold sleeve adopts the round pin anti-rotation form.

The edge-trimming binder core 21 and the punching binder core 24 are printed separately, and the junction of the trimming binder core 21 and the lower mold 1 and the junction of the punching binder core 24 and the lower mold 1 are left with magnet mounting holes. The free disassembly and assembly demonstration of this part can be realized behind the magnet.

The waste knife 10 is installed on the drawing flange trimming die, and is used to cut off the whole circle of waste, and the waste knife 10 is installed in a position avoiding the seam of the cutting edge of the insert. In order to prevent the waste knife 10 from being displaced by lateral force, a retaining wall is designed behind the waste knife 10 . A magnet installation hole is reserved at the joint between the waste knife 10 and the lower mold 1, through which the disassembly and assembly demonstration of the waste knife can be realized.

Waste slide plate is provided with before and after waste knife 10, and punching waste falls into waste box, and this mold is used in teaching instrument, so waste slide plate, waste box and transport connecting plate adopt iron sheet to replace.

The upper mold 18 and the lower mold 1 are guided by the guide post 4 and the guide sleeve 8. The guide post 4 and the guide sleeve 8 can be taken out separately for demonstration. The unloading plate 17 and the pressing core 21 are guided by the guide plate 23. The magnet installation hole 22 and the guide plate 23 can realize disassembly and assembly demonstration.

Trimming and punching die is relatively long, and four guide pillars 4 and guide sleeve 8 are respectively arranged on both sides of the die to improve the strength of the die.

The movement of the upper mold 18 and the lower mold 1 is limited by the limit block 2 and the limit pin 3 .

Pneumatic ejector pin 25 is installed at the bottom of lower mold base 1 of the trimming die, and the workpiece is ejected through pneumatic ejector pin 25 after mold closing, and a magnet installation hole is left at the joint between pneumatic ejector pin 25 and lower mold base 1, and the pneumatic ejector pin 25 can be taken out individually for presentation.

The trimming and pressing core 6 of the lower die and the lower die 1 are positioned by a positioning block 9, and a magnet mounting hole is left at the joint, through which the demodulation of the trimming and pressing core 6 of the lower die can be freely disassembled and assembled.

The total length of the automobile panel trimming and punching teaching instrument is about 1900mm. The binder core 21 in the mould is partly pulled out as a movable demonstration part, and the trimming insert 20 is all made movable, and the pneumatic ejector rod mechanism 25 is taken out as a whole to be a movable part. Reserve the punch 14 with the largest diameter to make a whole movable demonstration piece.

Claims (14)

1. automobile covering trimming punching die instruments used for education, be made up of counterdie (1), patrix (18), deburring material pressing core (21) and punching material pressing core (24), it is characterized in that: counterdie (1) is made up of limited block (2), position-limitting pin (3), guide pillar (4), punching counterdie material pressing core (5), deburring counterdie material pressing core (6), lifting lug device (7), guide pin bushing (8), locating piece (9) and waste knife (10); Patrix (18) is sold (15), nitrogen spring (16), stripper (17), caging bolt (19) and deburring insert (20) formed by lifting lug device (11), guide pin bushing (12), drift base (13), drift (14), side; Material pressing core is made up of deburring material pressing core (21) and punching material pressing core (24), material pressing core has magnet installing hole (22) and guide plate (23).

2. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: automobile covering trimming punching die belongs to composite die, in one stroke of press, same station completes the mould of twice technique, this mould adopts the mode of vertical trimming punching, conveniently 3D prints and this mould is cut from centre, and being cut into the left side is trimming die, and the right is perforating die.

3. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: trimming die adopts block insert type structure, be made up of six deburring inserts (20), magnet installing hole is stayed in deburring insert (20) and patrix (18) junction, can realize the dismounting demonstration of deburring insert by installing magnet.

4. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: stripper (17) plays the effect preventing deformation of products and the material returned when trimming and piercing die, stripper (17) adopts side pin (15) spacing, the thrust of stripper adopts nitrogen spring (16), and nitrogen spring (16) adopts in kind replacement at these instruments used for education.

5. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: in patrix (18) and material pressing core (21) adopt, guide plate (23) leads, material pressing core (21) realizes trimming and piercing die motion by nitrogen spring (16), movement travel is carried out spacing with the caging bolt (19) being fixed on upper bolster, and this motion manually can carry out analog demenstration.

6. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: perforating die conveniently 3D printing and the saving material on the right, active presentation made by the drift (14) only printing maximum gauge, drift (14) stays magnet installing hole with drift base (13), drift base (13) with upper bolster (18), and punching counterdie material pressing core (5) die sleeve adopts round pin anti-rotation form.

7. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: deburring material pressing core (21) and punching material pressing core (24) individually print, deburring material pressing core (21) stays magnet installing hole with the junction of counterdie (1) and the junction of punching material pressing core (24) and counterdie (1), can realize deburring material pressing core (21) and demonstrate with the disassembled and assembled freely of counterdie (1) with counterdie (1) and punching material pressing core (24) after installing magnet.

8. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: waste knife (10) is arranged on drawing flange trimming die, for cutting circle waste material, waste knife (10) installation site avoids the seam crossing of insert splicing line cutting edge, be subjected to displacement to prevent waste knife to be subject to side force, barricade is designed afterwards at waste knife (10), magnet installing hole is reserved in waste knife (10) and counterdie (1) junction, can be realized the dismounting demonstration of waste knife by magnet installing hole.

9. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: before and after waste knife (10), be provided with waste sliding plate, punched scrap falls into waste material box, this mould is used in instruments used for education, so waste sliding plate, waste material box and transport connecting plate adopt iron sheet to replace.

10. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: patrix (18) and counterdie (1) utilize guide pillar (4) and guide pin bushing (8) to lead, guide pillar (4) and guide pin bushing (8) can take out demonstration separately, stripper (17) and material pressing core (21) utilize guide plate (23) to lead, magnet installing hole (22) is left in guide plate (23) junction, and guide plate (23) can realize dismounting demonstration.

11., according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, is characterized in that: trimming-punching die is long, are respectively equipped with four guide pillars (4) and guide pin bushing (8), improve the intensity of this mould on mould both sides.

12., according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, is characterized in that: patrix (18) and counterdie (1) move through limited block (2) and position-limitting pin (3) carries out spacing.

13. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: Pneumatic top bar (25) is installed in die shoe (1) bottom of trimming die, product is ejected by Pneumatic top bar (25) after matched moulds terminates, stay magnet installing hole in Pneumatic top bar (25) and die shoe (1) junction, Pneumatic top bar (25) can take out demonstration separately.

14. according to a kind of automobile covering trimming punching die instruments used for education described in claim 1, it is characterized in that: counterdie deburring material pressing core (6) and counterdie (1) adopt locating piece (9) to locate, magnet installing hole is stayed in junction, is realized the disassembled and assembled freely demonstration of counterdie deburring material pressing core (6) by magnet installing hole.