CN102267242A - Pneumatic punching machine - Google Patents

Abstract

The invention discloses a pneumatic punching machine which comprises a base, a support, an air cylinder, a cam, a fixing plate and a punch, wherein the support is vertically arranged on the base, the fixing plate is arranged on the right side of the upper end of the support, the air cylinder is arranged at the upper end of the fixing plate, the air cylinder can drive the cam below the fixing plate to move up and down through a piston rod, the left lower part of the cam is of an arc-shaped surface structure and can pass through the support to be in arc surface contact with a pulley; a support plate is arranged on the left side of the upper end of the support, and an adjusting stroke device capable of controlling a connecting plate positioned below the support plate to move up and down is arranged on the support plate; the connecting plate is movably connected with an upper connecting rod, the upper connecting rod is movably connected with a lower connecting rod through a pulley, the lower end of the lower connecting rod is connected with a sliding block, the sliding block can slide up and down in a limiting block fixed on the left side of the support, and the tail end of the sliding block is fixed with a punch. The invention has novel structure, ingenious conception and wide market value.

Description

a pneumatic punch

technical field

The invention relates to the technical field of punching machines, in particular, it is a pneumatic punching machine.

Background technique

Punching machine is an important machine tool for mechanical processing, which is used to punch plates. Many punching machines are only used to process smaller workpieces, usually continuous feeding of plates and continuous stamping. The traditional pneumatic punch press produces less pressure. If a larger punching force is required, a cylinder with a larger bore diameter must be selected, which makes the punch press too large and requires a higher site, which cannot meet the requirements of modern production on the performance of the punch press. Come higher demands.

Contents of the invention

The purpose of the present invention is to design a pneumatic punching machine with a cylinder and connecting rod boosting structure, which not only has a small volume, but also can amplify the punching force several times, so as to meet the requirements of modern production on the punching machine and production efficiency.

In order to achieve the above object, the present invention is achieved through the following technical means: a pneumatic punching machine, including a base, a bracket, a cylinder, a cam, a fixed plate and a punch, the base is vertically provided with a bracket, and the upper end of the bracket is right There is a fixed plate on the side, and a cylinder is installed on the upper end of the fixed plate, and the cylinder can drive the cam below the fixed plate to move up and down through the piston rod. arc surface contact; the left side of the upper end of the bracket is provided with a support plate, and the support plate is provided with an adjustment stroke device that can control the movement of the connecting plate below the supporting plate; the connecting plate is movably connected with an upper link, the upper The connecting rod is movably connected to the lower connecting rod through a pulley, and the lower end of the lower connecting rod is connected with a slide block, which can slide up and down in the limit block fixed on the left side of the support, and a punch is fixed at the end of the slide block.

Compared with the prior art, the beneficial effect of the present invention is: due to the adoption of the above-mentioned structure, the cylinder is used as the power source, and the cylinder drives the cam to act on the pulley connecting the upper link and the lower link, so that the pulley moves in a curved line, which not only gives The horizontal downward force of the pulley also gives the pulley a horizontal force, and the pulley transmits the horizontal force to the upper and lower connecting rods and then becomes a vertical force, so that the connecting rods amplify the corresponding force twice and increase the momentum. Realize twice the magnification of momentum. The invention has novel structure, ingenious conception and wide market value.

Description of drawings

Accompanying drawing 1 is the initial state structural representation of a kind of pneumatic punch press of the present invention;

Accompanying drawing 2 is the final state structure schematic diagram of a kind of pneumatic punch press of the present invention.

The labels in the figure are: (1) base, (2) bracket, (3) fixed plate, (4) support plate, (5) cylinder, (6) cam, (7) stroke adjustment device, (8) connection Plate, (9) upper link, (10) lower link, (11) pulley, (12) slide block, (13) limit block, (14) punch.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be described in further detail:

Referring to Fig. 1, the present invention: a kind of pneumatic punching machine, comprises base 1, support 2, cylinder 5, cam 6, fixed plate 3 and punch 14, and described base 1 is vertically provided with support 2, and the upper end of support 2 is right The side is provided with a fixed plate 3, and the upper end of the fixed plate 3 is equipped with a cylinder 5, which can drive the cam 6 below the fixed plate to move up and down through the piston rod. The support plate 4 is provided with a supporting plate 4 on the left side of the upper end of the support plate 2, and the adjusting stroke device 7 that can control the connecting plate 8 below the supporting plate 4 to move up and down is provided on the supporting plate 2; The connecting plate 8 is movably connected with an upper link 9, the upper link 9 is movably connected with the lower link 10 through a pulley 11, the lower end of the lower link 10 is connected with a slider 12, and the slider 12 can be fixed on the The limit block 13 on the left side of the bracket 1 slides up and down, and a punch 14 is fixed at the end of the slide block 12 .

In conjunction with Fig. 1 and Fig. 2, when the present invention works, start the cylinder 5, and the cylinder 5 drives the cam 6 to act on the pulley 11 through the piston rod, not only giving the pulley 11 a vertical downward force, but also a horizontal force to the left; Since the upper end of the upper link 9 connected to the pulley 11 is fixed, the horizontal leftward force drives the upper link 9 and the lower link 10 to move downwards, making them move vertically downwards, thereby realizing the impulsive force in this way The amplification of the impulsive force finally processes the workpiece by the punch 14 at the lower end of the slider 12 .

The illustrated embodiments of the present invention are not self-limiting, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still belong to the present invention within the scope of the technical program.

Claims (1)

1. pneumatic punching machine, comprise base, support, cylinder, cam, fixed head and drift, it is characterized in that: vertically be provided with support on the described base, the right side, upper end of support is provided with fixed head, the upper end of described fixed head is equipped with cylinder, this cylinder moves up and down by the cam that piston rod can drive the fixed head below, and this cam lower left quarter is the arcwall face structure, and can pass support can be that cambered surface contacts with pulley; Left side, described support upper end is provided with gripper shoe, and gripper shoe is provided with can control the adjustment stroke apparatus that the connecting plate that is positioned at the gripper shoe below moves up and down; Described connecting plate is connected with connecting rod on, should go up connecting rod and flexibly connect a lower link by a pulley, this lower link lower end connects a slide block, and this slide block can slide up and down in the limited block that is fixed on the support left side, and the end of described slide block is fixed with a drift.

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