CN204262178U - A kind of brace step-feeding stamping modular mold - Google Patents

Abstract

The utility model provides a connecting piece progressive stamping combined mold, which comprises an upper mold part, a lower mold part and a guide mechanism, and the upper mold part includes an upper mold frame plate and a forming concave part arranged under the upper mold frame plate. Die and stripper plate, between the stripper plate and the upper mold frame plate, punches, bending upper dies and shearing upper knives are arranged in sequence; the lower mold part includes the lower mold frame plate and the lower mold frame plate The upper forming punch, punching lower die, bending lower die and shearing lower knife; the lower ends of the punch, bending upper die and shearing upper knife pass through the stripper plate, and the forming die, punch 1. The vertical distance between the bottom end of the bending upper die and the shearing upper knife and the lower end surface of the upper die frame plate is set in order from small to large. The device can realize continuous production, not only can greatly improve production efficiency, but also can reduce production cost, and the processing reject rate is low.

Description

A connecting piece progressive stamping combination die

technical field

The utility model relates to a die, in particular to a connecting piece progressive stamping combination die.

Background technique

The connecting piece is one of the main structural parts in the cable tray, which is used for the connection between the main bodies of the cable tray. The traditional production method of the connecting piece is: after rolling out a special profile with a strip steel, it is cut by a special mold and stamping equipment, and then punched twice to realize it. This production method has many and complicated manufacturing processes. For connecting pieces of different specifications, matching molds need to be opened. To change the production specifications, it is necessary to replace the corresponding molds. Quantitative production requires a large amount of equipment and human resources. Not only is the investment large, the work efficiency is slow, and the cost is high, this is the deficiency of the existing technology.

Utility model content

The technical problem to be solved by the utility model is to provide an integrated, punching, bending and cutting-in-one connecting piece progressive stamping combination die for the shortcomings of the existing technology, which has a compact structure and excellent work efficiency. high.

This solution is achieved through the following technical measures: the connecting piece progressive stamping combination die includes an upper mold part, a lower mold part and a guide mechanism, and the upper mold part includes an upper mold frame plate and is arranged under the upper mold frame plate. The forming die and the stripping plate, the punch, the bending upper die and the upper shearing knife are arranged in sequence between the stripping plate and the upper mold frame plate; the lower mold part includes the lower mold frame plate and the lower mold frame plate The forming punch, punching lower die, bending lower die and shearing lower knife above the formwork plate; the lower ends of the punch, bending upper die and shearing upper knife pass through the stripper plate, and the forming die , The vertical distance between the bottom end of the punch, the bending upper die and the upper shearing knife and the lower end surface of the upper die frame plate is set in order from small to large.

The lower end surface of the above-mentioned upper mold frame plate is fixedly connected with the upper mold backing plate and the upper mold fixing plate in sequence from top to bottom, and the forming die, punch, bending upper mold and shearing upper knife are respectively fixed with the upper mold Board fixed connections. The backing plate of the upper die has been heat-treated and processed, and its strength is higher than that of the upper die frame. It is used to cushion the punch and punching needle to prevent the tail of the punch from hurting the upper die frame. At the same time, it can also adjust the height of the die. During the operation, the backing plate of the upper die is used to bear the reaction force of the forming punch, punching lower die, bending lower die and shearing lower knife, so as to protect the upper die frame and prolong the service life of the upper die frame.

An inner guide post is also arranged between the upper mold fixing plate and the stripper plate, the lower end of the inner guide post protrudes from the stripper plate, and the punching lower die is provided with a guide hole matched with the inner guide post. The guide post cooperates with the guide hole to improve the guiding precision of punches and shears in the mold, and can also prevent the stripping plate from interfering with the punch due to misalignment, so as to avoid the punch from breaking.

A contour adjusting screw is arranged between the upper die fixing plate and the stripping plate, and the contour adjusting screw can ensure that the upper die support plate, the upper die backing plate and the upper die fixing plate are always in a horizontal state, so as to ensure that the upper die is partially crimped. The quality of forming, punching, bending and shearing operations.

An elastic body is arranged between the above-mentioned upper mold fixing plate and the stripper plate, and the elastic body is easy to strip off the stripper plate. In order to achieve a better stripping effect, the above-mentioned elastic body is a Youli rubber cylinder, a Youli rubber sheet, a flat wire spring or a nitrogen spring. It is preferable to use a Youli glue cylinder or a Uli relatively balanced.

The end of the above-mentioned stripping plate protrudes from the upper shearing knife. This structure can ensure that the stripping plate can compress and position the connecting parts, and at the same time, it also has the function of kicking off the finished connecting parts in time.

The above-mentioned guiding mechanism includes a guide sleeve and a guide post matched with the guide sleeve, the guide sleeve is fixedly connected with the upper formwork plate, and the guide post is fixedly connected with the lower formwork plate. Through the cooperation of the guide post and the guide sleeve, the entire upper mold part in motion is guided to ensure the stability of the movement of the upper mold part, guide and control the upper mold part and the lower mold part to align in the correct position.

The above-mentioned guide post is a ball guide post.

The lower end of the above-mentioned lower mold frame plate is fixedly connected with a contour block, which can increase the overall height of the mold to check the blanking of the punching hole. At the same time, it can also be used as a cleaning channel for punching waste, which is beneficial to the mold Diffusion of stamping force, and at the same time, strengthen the local bearing capacity of the mold according to needs.

The beneficial effects of this solution can be known from the description of the above-mentioned solution. In the connecting piece progressive stamping combination die, the upper mold part includes an upper mold frame plate and a forming die and a stripping mold arranged below the upper mold frame plate. A material plate, a punch, a bending upper die, and a shearing upper knife are sequentially arranged between the stripper plate and the upper mold frame plate; the lower mold part includes a lower mold frame plate and a forming Punch die, punching lower die, bending lower die and shearing lower knife; the lower ends of the punch, bending upper die and shearing upper knife pass through the stripper plate, and the forming die, punch, bending The vertical distance between the bottom end of the upper die and the shearing upper knife and the lower end surface of the upper die frame plate is set in order from small to large. After adopting this structure, the strip steel material of the same width is placed between the upper die part and the lower die part, and in one stroke of the press (that is, one stroke of the upper die part), the compression reinforcement of the connecting piece can be completed. , Punching connecting holes, 90° bending and shearing four processes of punching, since the above processes are carried out at different stations in one stroke of the press, continuous production can be realized, which can greatly improve The production efficiency can be improved, and the production cost can be reduced, and the scrap rate of processing is low. It can be seen that, compared with the prior art, the utility model has substantive features and progress, and the beneficial effects of its implementation are also obvious.

Description of drawings

Fig. 1 is a schematic structural view of a specific embodiment of the present invention.

Fig. 2 is a structural schematic diagram of the lower mold part in Fig. 1 .

Fig. 3 is a structural schematic diagram of the upper mold part in Fig. 1 .

Fig. 4 is a schematic structural view of the stripper plate in Fig. 1 .

Fig. 5 is a schematic diagram of the cooperative structure of the bending upper mold and the bending lower mold.

In the figure, 1-upper mold plate, 2-guide pillar, 3-guide sleeve, 4-forming die, 5-contour adjustment screw, 6-elastic body, 7-punching lower die, 8-inner guide pillar , 9-upper die fixing plate, 10-upper die backing plate, 11-punch, 12-bending upper die, 13-bending lower die, 14-cutting upper knife, 15-cutting lower knife, 16- Stripping plate, 17-contour block, 18-lower formwork plate, 19-forming punch, 20-guiding hole, 21-punching.

Detailed ways

In order to clearly illustrate the technical characteristics of this solution, the following will describe this solution through specific implementation modes and in conjunction with the accompanying drawings.

Polyurethane: referred to as PU, commonly known as Youli glue or spring glue.

A connecting piece progressive stamping combination die, as shown in the figure, it includes an upper mold part, a lower mold part and a guide mechanism, wherein the guide mechanism includes a guide sleeve 3 and a guide post 2 matched with the guide sleeve 3, The guide post 2 is a ball guide post, the guide sleeve 3 is fixedly connected with the upper mold frame plate 1, the guide post 2 is fixedly connected with the lower mold frame plate 18, and the ball guide post 2 cooperates with the guide sleeve 3 to guide and control The upper mold part and the lower mold part are aligned in the correct position.

The upper mold part includes an upper mold frame plate 1 and a forming die 4 and a stripper plate 16 arranged below the upper mold frame plate 1. The lower end surface of the upper mold frame plate 1 is sequentially fixedly connected with an upper mold frame. The backing plate 10 and the upper mold fixing plate 9, between the stripping plate 16 and the upper mold frame plate 1 (specifically, between the stripping plate 16 and the upper mold fixing plate 9) are sequentially provided with punches 11, Bending upper mold 12 and shearing upper knife 14, and the end of stripping plate 16 protrudes from shearing upper knife 14, forming die 4, punch 11, bending upper mold 12 and shearing upper knife 14 respectively Upper mold fixed plate 9 is fixedly connected. The lower end of the punch 11, the bending upper die 12 and the shearing upper knife 14 passes through the stripper plate 16, and the bottom of the forming die 4, the punch 11, the bending upper die 12 and the shearing upper knife 14 The vertical distances from the lower end surface of the upper mold frame plate 1 are set in order from small to large, so as to ensure that in one stroke of the press (that is, one stroke of the upper mold part), shearing, bending, and punching can be completed in sequence. Hole and forming, that is, in one stroke of the upper mold part, the cutting, bending, punching and forming of the connecting piece are completed at one time.

An inner guide post 8 is also arranged between the upper die fixing plate 9 and the stripper plate 16, the lower end of the inner guide post 8 protrudes from the stripper plate 16, and the punching lower die 7 is provided with an inner guide post 8 With the matching guide hole 20, the inner guide column 8 cooperates with the guide hole 20 to guide the upper mold part during the action of the upper mold part, which improves the guiding accuracy of the punch 11 and shear knife in the mold, and can also prevent material stripping The plate 16 is misaligned to interfere with the punch 11 in order to prevent the punch 11 from breaking. A contour adjusting screw 5 is arranged between the upper mold fixing plate 9 and the stripping plate 16, and the position of the upper mold frame plate 1, the upper mold backing plate 10 and the upper mold fixing plate 9 can be adjusted through the contour adjusting screw 5 as required , so that the three are always in a horizontal state. An elastic body 6 is arranged between the upper die fixing plate 9 and the stripping plate 16, and the elastic body 6 is a Urex rubber cylinder, a Ureo rubber plate, a flat wire spring or a nitrogen spring, and different materials can be selected according to different needs. Elastomer 6, such as bending and punching, generally use ordinary flat wire springs, such as brown springs, also known as brown springs; if the spring force is not enough, nitrogen springs should be selected, of course, the cost is higher; Uniglue cylinders and Uriglu rubber sheets are generally used in drawing dies and shaping dies. Their strength is relatively balanced. They are mostly used in applications where the mold contact area is relatively large, and they are mostly used for stripping in stamping dies.

The lower mold part includes a lower mold frame plate 18 and a forming punch 19 arranged on the lower mold frame plate 18, a punching lower mold 7, a bending lower mold 13 and a shearing lower knife 15, and the punching lower mold 7 There is a punching hole 21 matched with the punch 11 on the top, and a contour block 17 is fixedly connected to the lower end of the lower mold frame plate 18. The contour block 17 can increase the overall height of the mold to check the blanking of the punching hole 21 , at the same time, it can also be used as a cleaning channel for punching 21 waste, which is beneficial to the diffusion of punching force of the mold, and at the same time, according to needs, strengthen the local bearing capacity of the mold.

During operation, the upper mold part goes down once, and it is completed in sequence: ① The upper shear knife 14 cooperates with the lower shear knife 15 to complete the shearing of the strip steel material; 90 ° bending; ③ the punch 11 cooperates with the punching hole 21 on the punching lower die 7 to complete the punching operation of the connecting piece; ④ the forming punch 19 cooperates with the forming die 4 to complete the rib forming of the connecting piece. After the above four steps are completed, the part of the upper mold goes up and returns, and the steel strip advances, and at the same time, with the cooperation of the stripping plate 16, the processed connecting piece is output. The upper mold part goes down, repeats the above four steps, and repeats in this way to process and shape the connecting piece.

The technical features not described in the utility model can be realized by or adopting the prior art, and will not be repeated here. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above-mentioned embodiment. Changes, modifications, additions or substitutions made by those skilled in the art within the essential scope of the present utility model shall also belong to the protection scope of the present utility model.

Claims (10)

1. A connecting piece progressive stamping combination die, which includes an upper mold part, a lower mold part and a guide mechanism, and is characterized in that: the upper mold part includes an upper mold frame plate and a forming mold arranged below the upper mold frame plate A die and a stripper plate, a punch, a bending upper die and a shearing upper knife are sequentially arranged between the stripper plate and the upper mold frame plate; the lower mold part includes the lower mold frame plate and the lower mold frame plate The forming punch, punching lower die, bending lower die and shearing lower knife above the plate; the lower ends of the punch, bending upper die and shearing upper knife pass through the stripper plate, and the forming die, punching The vertical distance between the bottom end of the head, the bending upper die and the shear upper knife and the lower end surface of the upper die frame plate is set in order from small to large. 2. The connecting piece progressive stamping combined mold according to claim 1, characterized in that: the lower end surface of the upper mold frame plate is fixedly connected with an upper mold backing plate and an upper mold fixing plate sequentially from top to bottom, The forming die, punch, bending upper die and shearing upper knife are respectively fixedly connected with the upper die fixing plate. 3. The connecting piece progressive stamping combination die according to claim 1 or 2, characterized in that: an inner guide post is also arranged between the upper mold fixing plate and the stripper plate, and the lower end of the inner guide post The stripping plate is extended, and the punching lower die is provided with a guide hole matched with the inner guide post. 4. The connecting piece progressive stamping combination die according to claim 3, characterized in that: a contour adjusting screw is arranged between the upper die fixing plate and the stripping plate. 5. The connecting piece progressive stamping combination die according to claim 4, characterized in that: an elastic body is arranged between the upper die fixing plate and the stripper plate. 6. The connecting piece progressive stamping combination die according to claim 5, characterized in that: the elastic body is a Urex cylinder, a Urex sheet, a flat wire spring or a nitrogen spring. 7. The connecting piece progressive stamping combination die according to claim 5, characterized in that: the end of the stripper plate protrudes from the upper shearing knife. 8. The connecting piece progressive stamping combination die according to claim 7, characterized in that: the guide mechanism includes a guide sleeve and a guide post matched with the guide sleeve, the guide sleeve is fixedly connected with the upper die frame plate, The guide post is fixedly connected with the lower formwork plate. 9. The connecting piece progressive stamping combination die according to claim 8, characterized in that: the guide post is a ball guide post. 10. The connecting piece progressive stamping combined die according to claim 7, characterized in that: the lower end of the lower die frame plate is fixedly connected with a contour block.