Punching machine tool

Abstract

The utility model belongs to the field of punching machine tools, and provides a punching machine tool which comprises a machine table, 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 is arranged on a bottom plate of the sliding frame, each punching mechanism comprises two sets of screw rods, and the two sets of screw rods are arranged on the machine table. The bottom of each set of screws penetrates out of the bottom plate and is 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, and a pair of elastic pieces are arranged between the bottom plate and the connecting plates. When the punching machine tool is used for punching a metal piece, the metal piece is firstly fixed on the punching table according to requirements, the punching air cylinder drives the sliding frame to move downwards, the pressing plate makes contact with the metal piece and presses the metal piece downwards, the sliding frame continues to move downwards, and the punching column penetrates out of the pressing plate to punch the metal piece.

Description

Technical Field

[0001] The utility model belongs to the field of punching machine tools, in particular to a punching machine tool. Background Art

[0002] Machine tools refer to machines used to manufacture machines, also known as machine tools or machine tools, and are usually referred to as machine tools. They are generally divided into metal cutting machine tools, forging machine tools, and woodworking machine tools. There are many methods for processing mechanical parts in modern machinery manufacturing. In addition to cutting, there are also casting, forging, welding, stamping, extrusion, etc. However, all parts with high precision requirements and fine surface roughness requirements generally need to be finally processed on machine tools by cutting methods. Machine tools play a major role in the construction of national economic modernization.

[0003] When punching materials, the existing punching machine first installs the raw materials, and then, driven by the power mechanism, the punching die directly acts on the material to complete the punching operation. Although this can also complete the punching operation well, the punching die may shake the material during the punching process, affecting the punching quality. In addition, the pressing plate and the connecting plate are generally fixed and installed directly with multiple nuts. During the installation process, the threaded holes in the pressing plate and the connecting plate need to be aligned up and down, which increases the difficulty of installation. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a punching machine tool, aiming to solve the problems of poor punching quality of existing punching machines and high difficulty in installing pressing plates and connecting plates.

[0005] The utility model adopts the following technical scheme: the punching machine tool comprises a machine platform, a frame is arranged on the machine platform, a slide is arranged above the frame, a punching platform is arranged below the frame, a slide is arranged inside the slide, a pair of punching mechanisms are arranged on the bottom plate of the slide, the punching mechanism comprises two groups of screws, the bottom of each group of screws passes through the bottom plate and are jointly provided with a connecting plate, a pressing plate is arranged at the bottom of the connecting plate, a punching column is arranged on the bottom plate facing each connecting plate, the bottom of the punching column passes through the pressing plate, a pair of elastic parts are arranged between the bottom plate and the connecting plate, a fixed seat is arranged on the top of the slide, a punching cylinder is arranged on the fixed seat, and the driving shaft of the punching cylinder is connected to the slide.

[0006] Furthermore, the connecting plate and the pressure plate are respectively provided with upper and lower circular grooves, a top sleeve is formed on the top of the pressure plate, a convex plate is formed on the bottom, and the top sleeve is located in the upper circular groove, and a limiting groove is formed on the top sleeve along the circumferential direction, a limiting screw is laterally screwed into one side of the connecting plate, and the end of the limiting screw is resisted in the limiting groove, and a locking nut is vertically screwed into the other side of the connecting plate, and the bottom of the locking nut is screwed into the pressure plate and locked.

[0007] Furthermore, a pressing groove is formed upward at the bottom of the convex plate.

[0008] Furthermore, a guide column is provided downward at the bottom of the base plate, and a guide sleeve matching the guide column is provided below the frame.

[0009] Furthermore, a pair of waste troughs are provided on the punching table, and a collecting port is provided on the machine table opposite to the two waste troughs.

[0010] The beneficial effect of the utility model is that when the punching machine is used to punch holes on metal parts, firstly, two metal parts are placed on the punching table and fixed as required, and the punching cylinder drives the slide to move downward, and firstly the pressing plate contacts the metal parts below and presses down the metal parts, and the slide continues to move downward, and the screw rod of the same group moves upward for a short distance, and the punching column passes through the pressing plate to punch the metal parts, and after the punching is completed, the slide rod is reset under the drive of the punching cylinder, and the elastic part recovers its deformation at the same time, and the screw rod is reset under the action of the elastic part, and finally the clamp can be opened, the two metal parts can be removed, and the next metal part can be punched. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model provides an overall diagram of a punching machine tool.

[0012] Figure 2 The utility model provides a punching mechanism structure diagram.

[0013] Figure 3 The utility model provides a schematic diagram of the pressing plate structure. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0016] For the convenience of explanation, only the parts related to the embodiment of the present utility model are shown.

[0017] Combination Figure 1-3As shown, the punching machine tool includes a machine platform 1, on which a machine frame 2 is provided, a slide 3 is provided above the frame 2, and a punching platform 4 is provided below the frame 2, a slide 5 is provided inside the slide 3, and a pair of punching mechanisms are provided on the bottom plate 7 of the slide 5, and the punching mechanism includes two groups of screws 6, the tops of the screws are provided with nuts, the bottoms of each group of screws 6 pass through the bottom plate 7 and are jointly provided with a connecting plate 8, a pressing plate 9 is provided at the bottom of the connecting plate 8, a punching column 10 is provided on the bottom plate 7 facing each connecting plate 8, the bottom of the punching column 10 passes through the pressing plate 9, a pair of elastic members 12 are provided between the bottom plate 7 and the connecting plate 8, a fixed seat 13 is provided on the top of the slide 3, a punching cylinder 14 is provided on the fixed seat 13, and the driving shaft of the punching cylinder 14 is connected to the slide 5.

[0018] In the punching machine, a slide is provided above the frame and a punching table is provided below the frame. A slide is provided inside the slide, and a pair of punching mechanisms are provided on the slide. In actual situations, a clamp for clamping and fixing metal parts is provided on the punching table corresponding to each punching mechanism. When punching metal parts, the punching machine can punch two metal parts at the same time.

[0019] When using the punching machine to punch metal parts, first take two metal parts and place them on the punching table as required, then fix the metal parts with the clamp, the punching cylinder drives the slide to move downward, and the punching mechanism moves toward the metal parts on the same side. Specifically: the slide moves downward, first the pressure plate contacts the metal part below and presses down the metal part, the slide continues to move downward, the screw in the same group moves upward a short distance, and the punching column passes through the pressure plate to punch the metal part. After the punching is completed, the slide is reset under the drive of the punching cylinder, and the elastic part recovers its deformation. Under the action of the elastic part, the screw is reset. At this time, the clamp can be opened, the two metal parts can be removed, and the next metal part can be punched.

[0020] When the punching machine is used to punch holes in metal parts, the metal parts are first pressed by the pressing plate during the punching process. After the metal parts are pressed, the punching column punches the metal parts. In this way, the punching column can stably punch holes in the metal parts. At the same time, the pressing plate can stably press down the metal parts under the action of the elastic member.

[0021] A guide column 15 is provided downward at the bottom of the bottom plate 7, and a guide sleeve 16 matching the guide column 15 is provided below the frame 1. In the process of punching holes in metal parts, the slide moves downward under the drive of the punching cylinder, and the guide column also moves toward the guide sleeve. In the process of punching holes, the guide column penetrates into the guide sleeve and slides in the guide sleeve. The guide sleeve and the guide column both play the role of guiding and limiting, which can make the punching mechanism more stable when punching holes in metal parts.

[0022] In addition, Figure 1 A pair of waste troughs 17 are provided on the punching table 4, and a collection port 18 is provided on the machine table 1 opposite to the two waste troughs. When the punching column completes punching of the metal part, the punched waste falls from the waste trough into the collection port. A material collection box 11 is placed in the machine table, and the material collection box is arranged opposite to the collection port. The punched waste finally falls into the material collection box for centralized collection.

[0023] As a preferred structure, Figure 2-3 The connecting plate 8 and the pressing plate 9 are respectively provided with two upper and lower circular grooves 19, a top sleeve 20 is formed on the top of the pressing plate 9, a convex plate 21 is formed on the bottom, and the top sleeve 20 is located in the upper circular groove, and the top sleeve 20 is provided with a limiting groove 24 along the circumferential direction, a limiting screw 22 is screwed into one side of the connecting plate 8 horizontally, and the end of the limiting screw 22 resists in the limiting groove 24, and a locking nut 23 is screwed into the other side of the connecting plate 8 vertically, 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 two upper and lower threaded holes 25, and the locking nuts are located in the two threaded holes.

[0024] In this structure, the pressing plate can be removed from the connecting plate. A top sleeve is formed on the top of the pressing plate, a convex plate is formed on the bottom, and a pressing groove 26 is formed upward at the bottom of the convex plate. The pressing groove matches the metal piece, so that the pressing plate can press the metal piece more stably. The top sleeve plays the role of limiting and guiding the stamping column.

[0025] When the pressure plate needs to be replaced, first hold the pressure plate to be replaced by hand, and insert the top sleeve from the bottom of the connecting plate into the upper circular groove. Then screw the limit screw from one side of the connecting plate until the end of the limit screw is located in the limit groove. At this time, the initial installation of the pressure plate is completed. Then, the pressure plate is moved to align the pressure plate with the connecting plate. At this time, the two threaded holes are aligned up and down, and a locking nut is screwed into the upper threaded hole. The locking nut is screwed into the lower threaded hole to lock the connecting plate and the pressure plate. Finally, continue to screw the limit screw. The end of the limit screw contacts the limit groove, and the pressure plate is firmly installed on the connecting plate. In this way, the operator can easily replace the pressure plate.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the present utility model.

Claims

1. A punching machine tool, characterized in that: The punching machine tool includes a machine platform, a frame is provided on the machine platform, a slide is provided above the frame, a punching platform is provided below the frame, a slide is provided inside the slide, a pair of punching mechanisms are provided on the bottom plate of the slide, the punching mechanism includes two groups of screws, the bottom of each group of screws passes through the bottom plate and are jointly provided with a connecting plate, a pressing plate is provided at the bottom of the connecting plate, a punching column is provided on the bottom plate facing each connecting plate, the bottom of the punching column passes through the pressing plate, a pair of elastic parts are provided between the bottom plate and the connecting plate, a fixed seat is provided on the top of the slide, a punching cylinder is provided on the fixed seat, and the driving shaft of the punching cylinder is connected to the slide.

2. A punching machine tool as claimed in claim 1, characterized in that: The connecting plate and the pressure plate are respectively provided with two upper and lower circular grooves, a top sleeve is formed on the top of the pressure plate, a convex plate is formed on the bottom, and the top sleeve is located in the upper circular groove, and a limiting groove is formed on the top sleeve along the circumferential direction, a limiting screw is laterally screwed into one side of the connecting plate, and the end of the limiting screw is resisted in the limiting groove, and a locking nut is vertically screwed into the other side of the connecting plate, and the bottom of the locking nut is screwed into the pressure plate and locked.

3. A punching machine tool as claimed in claim 2, characterized in that: A pressing groove is formed upward at the bottom of the convex plate.

4. A punching machine tool as claimed in claim 3, characterized in that: A guide column is arranged downward at the bottom of the base plate, and a guide sleeve matching the guide column is arranged below the frame.

5. A punching machine tool as claimed in claim 4, characterized in that: A pair of waste slots are provided on the punching table, and a collecting port is provided on the machine table facing the two waste slots.

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