CN222491726U - A punching machine - Google Patents

Abstract

The utility model belongs to the field of punching machine tools, and provides a punching machine tool which comprises a machine table, wherein a rack is arranged on the machine table, a sliding seat is arranged above the rack, a punching table is arranged below the rack, a sliding frame is arranged in the sliding seat, a pair of punching mechanisms are arranged on a bottom plate of the sliding frame, each punching mechanism comprises two groups of screw rods, the bottoms of each group of screw rods penetrate through the bottom plate and are jointly provided with a connecting plate, a pressing plate is arranged at the bottom of each connecting plate, a punching column is arranged on the bottom plate towards each connecting plate, the bottoms of the punching columns penetrate through the pressing plates, and a pair of elastic pieces are arranged between the bottom plate and the connecting plates. When the punching machine is used for punching the metal piece, the metal piece is fixed on the punching table according to the requirement, the punching cylinder drives the sliding frame to move downwards, the metal piece is firstly pressed by the pressing plate, the sliding frame continuously moves downwards, and the punching column punches the metal piece after penetrating out of the pressing plate.

Description

Punching machine tool

Technical Field

The utility model belongs to the field of punching machine tools, and particularly relates to a punching machine tool.

Background

Machine tools refer to machines for producing machines, also known as machine tools or machine tools, which are conventionally referred to as machine tools. The method is generally divided into a metal cutting machine tool, a forging machine tool, a woodworking machine tool and the like, and a plurality of methods for processing mechanical parts in modern machine manufacturing are adopted, and besides cutting processing, casting, forging, welding, stamping, extrusion and the like are adopted, so that the method belongs to parts with higher precision requirements and thinner surface roughness requirements, and the final processing is generally required to be carried out on the machine tool by using a cutting method, and the machine tool plays a great role in the modern construction of national economy.

When the existing punching machine punches a hole on a material, firstly, after the raw material is installed, the punching die directly acts on the material under the drive of the power mechanism to finish the punching operation. Thus, although the punching operation can be completed well, the punching die can shake in the punching process, and the punching quality is affected. In addition, the pressing plate and the connecting plate are generally directly and fixedly installed through a plurality of nuts, and threaded holes in the pressing plate and the connecting plate are required to be aligned up and down in the installation process, so that the installation difficulty is increased.

Disclosure of utility model

In view of the above problems, the present utility model aims to provide a punching machine tool, which aims to solve the problems of poor punching quality and large difficulty coefficient of installation of a pressing plate and a connecting plate of the existing punching machine tool.

The punching machine tool comprises a machine table, wherein a machine frame is arranged on the machine table, a sliding seat is arranged above the machine frame, a punching table is arranged below the machine frame, a sliding frame is arranged in the sliding seat, a pair of punching mechanisms are arranged on a bottom plate of the sliding frame, each punching mechanism comprises two groups of screws, the bottoms of each group of screws penetrate out of the bottom plate and are jointly provided with connecting plates, a pressing plate is arranged at the bottom of each connecting plate, punching columns are arranged on the bottom plate towards each connecting plate, the bottoms of the punching columns penetrate out of the pressing plates, a pair of elastic pieces are arranged between the bottom plate and the connecting plates, a fixing seat is arranged at the top of the sliding seat, a punching cylinder is arranged on the fixing seat, and a driving shaft of the punching cylinder is connected with the sliding frame.

Further, two circular grooves are respectively formed in the connecting plate and the pressing plate, a top sleeve is formed at the top of the pressing plate, a convex plate is formed at the bottom of the pressing plate, the top sleeve is located in the upper circular groove, a limit groove is formed in the top sleeve along the circumferential direction, a limit screw is transversely screwed in one side of the connecting plate, the tail end of the limit screw resists in the limit groove, a locking nut is vertically screwed in the other side of the connecting plate, and the bottom of the locking nut is screwed in the pressing plate and locked.

Further, the bottom of the convex plate is upwards provided with a pressing groove.

Further, a guide post is arranged downwards at the bottom of the bottom plate, and a guide sleeve matched with the guide post is arranged below the frame.

Furthermore, a pair of waste tanks are arranged on the punching table, and collecting ports are arranged on the machine table opposite to the two waste tanks.

When the punching machine tool is used for punching metal pieces, two metal pieces are firstly taken and placed on the punching table according to requirements and fixed, the punching cylinder drives the sliding frame to move downwards, the pressing plate is firstly contacted with the metal pieces below and presses the metal pieces downwards, the sliding frame continues to move downwards, the same group of screw rods move upwards for a small distance, the punching column penetrates through the pressing plate and then performs punching operation on the metal pieces, after punching is completed, the sliding frame is reset under the driving of the punching cylinder, meanwhile, the elastic piece is restored to deform, the screw rods are reset under the action of the elastic piece, finally, the clamp can be opened, the two metal pieces are taken down, and the next metal piece is waited to be punched.

Drawings

Fig. 1 is an overall view of a punching machine according to the present utility model.

Fig. 2 is a block diagram of a punching mechanism according to the present utility model.

FIG. 3 is a schematic view of a platen structure provided by the present utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.

Only those parts relevant to the embodiments of the present utility model are shown for convenience of description.

Referring to fig. 1-3, the punching machine comprises a machine 1, a frame 2 is arranged on the machine 1, a sliding seat 3 is arranged above the frame 2, a punching table 4 is arranged below the frame, a sliding frame 5 is arranged in the sliding seat 3, a pair of punching mechanisms are arranged on a bottom plate 7 of the sliding frame 5, each punching mechanism comprises two groups of screws 6, nuts are arranged at the tops of the screws, the bottoms of each group of screws 6 penetrate out of the bottom plate 7 and are jointly provided with a connecting plate 8, a pressing plate 9 is arranged at the bottom of each connecting plate 8, punching columns 10 are arranged on the bottom plate 7 towards each connecting plate 8, the bottoms of the punching columns 10 penetrate out of the pressing plates 9, a pair of elastic pieces 12 are arranged between the bottom plate 7 and the connecting plates 8, a fixing seat 13 is arranged at the top of the sliding seat 3, punching cylinders 14 are arranged on the fixing seat 13, and driving shafts of the punching cylinders 14 are connected with the sliding frame 5.

In the punching machine tool, a slide seat is arranged above a frame, a punching table is arranged below the frame, a slide frame is arranged in the slide seat, a pair of punching mechanisms are arranged on the slide frame, and a clamp for clamping and fixing metal pieces is arranged on the punching table corresponding to each punching mechanism in practical cases. When the punching machine tool punches a metal piece, punching operation can be performed on two metal pieces at the same time.

When the punching machine is used for punching metal pieces, two metal pieces are firstly taken and placed on the punching table according to requirements, then the metal pieces are fixed through the clamp, the punching cylinder drives the sliding frame to move downwards, and the punching mechanism moves towards the metal pieces on the same side. Specifically, the sliding frame moves downwards, the pressing plate is contacted with the metal piece below, the metal piece is pressed downwards, the sliding frame continues to move downwards, the same group of screw rods move upwards for a small distance, and the punching column punches the metal piece after penetrating out of the pressing plate. After punching, the sliding frame resets under the drive of the punching cylinder, and the elastic piece restores to deform at the same time, and the screw resets under the action of the elastic piece. At this time, the clamp can be opened, the two metal pieces can be removed, and the next metal piece can be waited for punching operation.

When the punching machine tool is used for punching a metal piece, the metal piece is firstly pressed by the pressing plate in the punching process, and after the metal piece is pressed, the punching column is used for punching the metal piece. This allows the punching post to stably punch the metal piece. Meanwhile, the pressing plate can stably press down the metal piece under the action of the elastic piece.

The bottom of the bottom plate 7 is provided with a guide post 15 downwards, and a guide sleeve 16 matched with the guide post 15 is arranged below the frame 1. In the process of punching the metal piece, the sliding frame moves downwards under the driving of the punching cylinder, and meanwhile, the guide column also moves towards the guide sleeve. In the punching process, the guide post penetrates into the guide sleeve and slides in the guide sleeve, and the guide sleeve and the guide post play roles in guiding and limiting, so that the punching mechanism is more stable in punching a metal piece.

In addition, as shown in fig. 1, the punching stage 4 is provided with a pair of waste tanks 17, and the machine stage 1 is provided with a collection port 18 opposite to the two waste tanks. After the punching column finishes punching the metal piece, the punched waste material falls into the collecting opening from the waste material groove. And a material receiving box 11 is arranged in the machine table and is opposite to the collection port. Finally, the punched waste falls into the material receiving box for centralized material receiving.

As a preferable structure, as shown in fig. 2-3, the connecting plate 8 and the pressing plate 9 are respectively provided with an upper circular groove 19 and a lower circular groove 19, the top of the pressing plate 9 is provided with a top sleeve 20, the bottom is provided with a convex plate 21, the top sleeve 20 is positioned in the upper circular groove, the top sleeve 20 is provided with a limit groove 24 along the circumferential direction, one side of the connecting plate 8 is transversely screwed with a limit screw 22, the tail end of the limit screw 22 resists against the limit groove 24, the other side of the connecting plate 8 is vertically screwed with a locking nut 23, and the bottom of the locking nut 23 is screwed into the pressing plate and locked. The pressing plate and the connecting plate are respectively provided with an upper threaded hole 25 and a lower threaded hole 25, and the lock nuts are positioned in the two threaded holes.

In this structure, the platen may be detachable from the connection plate. The top of the pressing plate is provided with a top sleeve, the bottom of the pressing plate is provided with a convex plate, and the bottom of the convex plate is upwards provided with a pressing groove 26. The pressing groove is matched with the metal piece, so that the pressing plate can press the metal piece more stably. And the top sleeve plays a role in limiting and guiding the stamping column.

When the pressing plate needs to be replaced, the pressing plate to be replaced is firstly held by hands, and the top sleeve penetrates into the upper round groove from the lower part of the connecting plate. And screwing the limit screw from one side of the connecting plate until the tail end of the limit screw is positioned in the limit groove, completing the preliminary installation of the pressing plate, then stirring the pressing plate to enable the pressing plate to be aligned with the connecting plate, at the moment, vertically aligning the two threaded holes, screwing a lock nut from the upper threaded hole, screwing the lock nut into the lower threaded hole to lock the connecting plate with the pressing plate, and finally continuing to screw the limit screw, wherein the tail end of the limit screw is abutted to the limit groove, and the pressing plate is firmly installed on the connecting plate. Thus, an operator can easily replace the pressing plate.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (5)

1. The punching machine tool is characterized by comprising a machine table, wherein a machine frame is arranged on the machine table, a sliding seat is arranged above the machine frame, a punching table is arranged below the machine frame, a sliding frame is arranged in the sliding seat, a pair of punching mechanisms are arranged on a bottom plate of the sliding frame, each punching mechanism comprises two groups of screws, the bottoms of each group of screws penetrate out of the bottom plate and are jointly provided with a connecting plate, a pressing plate is arranged at the bottom of each connecting plate, punching columns are arranged on the bottom plate towards each connecting plate, the bottoms of the punching columns penetrate out of the pressing plates, a pair of elastic pieces are arranged between the bottom plate and the connecting plates, a fixing seat is arranged at the top of the sliding seat, a punching cylinder is arranged on the fixing seat, and a driving shaft of the punching cylinder is connected with the sliding frame.

2. The punching machine tool according to claim 1, wherein the connecting plate and the pressing plate are respectively provided with an upper circular groove and a lower circular groove, a top sleeve is formed at the top of the pressing plate, a convex plate is formed at the bottom of the pressing plate, the top sleeve is positioned in the upper circular groove, the top sleeve is provided with a limit groove along the circumferential direction, one side of the connecting plate is transversely screwed with a limit screw, the tail end of the limit screw resists against the limit groove, the other side of the connecting plate is vertically screwed with a locking nut, and the bottom of the locking nut is screwed into the pressing plate and locked.

3. A punching machine as in claim 2, wherein said convex plate has a bottom portion facing upward with a pressing groove.

4. A punching machine as in claim 3 wherein the bottom of said base plate is provided with a guide post facing downwardly and a guide sleeve is provided below said frame to match said guide post.

5. A punching machine as in claim 4 wherein said punching station has a pair of waste channels and said station has collection ports facing both waste channels.