CN203901762U - Piston type double-station punching machine with crank-link structure - Google Patents

Abstract

The utility model discloses a piston-type double-station stamping machine adopting a crank-connecting rod structure, which comprises a machine tool and two stamping stations, and is characterized in that two piston-type driving mechanisms are arranged along a straight line on the machine tool, one The connecting rod connects the pistons of the two drive mechanisms, and the connecting rod is provided with two racks along its length, and the machine tool is also provided with two gears meshing with the racks; each stamping station Each is provided with a chute, and a punch slider is movably arranged in the chute, and each of the punch sliders is connected to the eccentric position of the gear through a hinge rod, and the hinge rod is connected to the Both the gear and the punch slider are hinged. The utility model has the advantages of quick action, low cost, clean compressed air as the working medium, and no environmental pollution.

Description

Piston-type double-station punching machine with crank-connecting rod structure

technical field

The utility model belongs to the mechanical field, and relates to a piston-type double-station stamping machine adopting a crank connecting rod structure, in particular to a horizontal numerically controlled double-station stamping machine.

Background technique

At present, the traditional mechanical stamping machines are all vertical. On a vertical stamping machine, it is difficult to achieve double-station stamping, and a numerical control workbench is often required; the double-station vertical stamping with a numerical control workbench is more complicated in structure, and the rigidity of the workbench is poor; in addition, The cost of the whole system is also relatively high. Modern manufacturing, especially the manufacture of electronic appliances, communications and other products, has an increasingly urgent demand for high-efficiency, low-power automatic stamping machines, and traditional mechanical stamping machines are obviously unable to meet this demand.

Contents of the invention

In order to solve the above problems, the utility model provides a horizontal, high-efficiency piston-type double-station punching machine with a crank-connecting rod structure.

The technical scheme of the utility model is to provide

A piston-type double-station stamping machine adopting a crank-connecting rod structure, which includes a machine tool and two stamping stations. The piston of the driving mechanism, the connecting rod is provided with two racks along its length direction, and the machine tool is also provided with two gears meshing with the racks; the gears and the stamping station are connected by the The rod is a symmetrical axis, and is symmetrically arranged on both sides of the connecting rod; each of the stamping stations is provided with a chute, and a punch slider is movably arranged in the chute, and each of the punches The sliders are all connected at the eccentric position of the gear through a hinge rod, and the hinge rod is hinged with the gear and the punch slider.

Preferably, the piston driving mechanism is an oil cylinder or an air cylinder.

Preferably, two stamping stations are set on the machine tool, and the two stamping stations are symmetrically arranged with the axis of the connecting rod as the axis of symmetry, and the two gears respectively meshing with the rack are arranged with the axis of the connecting rod. The axes are set symmetrically about the axis of symmetry.

Preferably, the machine tool has a horizontal symmetrical layout.

The piston-type double-station stamping machine adopting the crank connecting rod structure of the utility model has the following beneficial effects:

(1) The technical functions are relatively complete, and the mature rack and pinion mechanism and hinge rod mechanism are used as the main components of the punching machine, which is more convenient for processing and manufacturing.

(2) Only one set of transmission device is used to realize the work of two stations, the structure is more compact, the work efficiency is improved, and the cost is reduced.

(3) The crank-link mechanism in this device is a non-linear mechanism. When the transmission angle and pressure angle are large, the crank-link mechanism can be used as a stroke amplification mechanism. At this time, the output speed is large, and the speed of crossing the empty stroke is fast, saving time. When the transmission angle and pressure angle are small, it can be used as a force amplification mechanism. At this time, the output speed is small, but the output force is large. At this time, the output force of the stamping workpiece is also guaranteed.

(4) Since the machine tool adopts a horizontal layout, compared with the traditional vertical stamping machine tool, the center of gravity is low and the stability is good. In addition, on both sides of the machine tool, a stepping device for automatic feeding is installed, which can form a high-efficiency and automatic stamping machine tool.

(5) When the cylinder is used as the driving mechanism, it has the advantages of quick action, low cost, clean compressed air as the working medium, and no environmental pollution.

(6) Double-station structure is adopted to balance the force and prolong the service life of the structure.

Description of drawings

Fig. 1 is a structural schematic view of the best embodiment of the piston-type double-station stamping machine adopting the crank-connecting rod structure of the present invention.

Detailed ways

The specific implementation manner of the present utility model is described in further detail below.

As shown in Figure 1, a piston-type double-station punching machine adopting a crank-connecting rod structure of the present invention includes a machine tool (not shown), and two oil cylinders or air cylinders, preferably air cylinders, are arranged on the machine tool. Cylinder 1 and cylinder 1' are arranged along the same straight line, piston 2 is opposite to piston 2', and a connecting rod 3 is connected to piston 2 and piston 2'. Two stamping stations 4 are set with the connecting rod 3 as the axis of symmetry. The two stamping stations 4 are arranged symmetrically, however, according to the design ideas of the present invention, multiple stamping stations can be arranged on one side or multiple groups of symmetrically arranged stamping stations can be arranged. Each stamping station 4 is provided with a chute 5 , and a punch slider 6 is movably arranged in the chute 5 .

A rack 7 and a rack 7' are arranged on the connecting rod 3, and the rack 7 and the rack 7' are respectively arranged on both sides of the connecting rod 3 with the connecting rod 3 as an axis. Of course, the connecting rod 3 can also be set as a double-sided rack structure. The gear 8 and the gear 8' are engaged with a rack 7 and a rack 7' respectively, and are driven by the rack 7 and the rack 7' to rotate around their central axis. Each punch slide block 6 is connected at the eccentric position of gear 8 and gear 8 ' through a hinge bar 9 and hinge bar 9 ', and the hinge bar is all hinged with gear 8 and gear 8 ' and punch slide block 6.

The working principle of the utility model: when the compressed air enters the cylinder 1, the lower piston 2 and the piston 2' are pushed to move upward, thereby driving the rack 7 and the rack 7' to move upward, and the rack 7 and the rack 7' drive the two sides The gear 8 and the gear 8' move clockwise and counterclockwise respectively, and then push the crank linkage mechanism on both sides to drive the two punch sliders 6 to move outward, and the punches on the punch slider 6 punch the left and right workpieces .

When the compressed air enters the upper cylinder 1', it pushes the upper piston 2 and piston 2' to move downward, at this time, the rack 7 and the rack 7' move downward, thereby driving the gear 8 and the gear 8' on both sides to move counterclockwise and clockwise respectively. The clockwise movement drives the crank-link mechanism on both sides to drive the punch slider 6 to move inward and reset.

Because in the stamping process, the stamping force of the left and right stations reacts to the lateral force on the double-sided rack, it is symmetrically balanced. Therefore, compared with the single-station punching machine using a single-side rack-crank-connecting rod booster mechanism, this punching machine not only doubles the production efficiency, but also greatly improves the stress conditions of the rack and piston, and the service life can be extended. substantial improvement.

The above embodiment is only one implementation mode of the present utility model, and its description is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (6)

1. A piston-type double-station stamping machine adopting a crank-connecting rod structure, which comprises a machine tool and two stamping stations, is characterized in that: two piston-type drive mechanisms are set along a straight line on the machine tool, and a connecting rod connects For the pistons of the two driving mechanisms, two racks are arranged on the connecting rod along its length direction, and two gears meshed with the racks are also arranged on the machine tool; The connecting rod is a symmetrical axis, and is symmetrically arranged on both sides of the connecting rod; each of the stamping stations is provided with a chute, and a punch slider is movably arranged in the chute, and each of the punching stations The punch sliders are all connected at the eccentric position of the gear through a hinge rod, and the hinge rod is hinged with the gear and the punch slider. 2. The piston-type double-station punching machine adopting a crank-connecting rod structure according to claim 1, wherein the piston-type driving mechanism is an air cylinder. 3. The piston-type double-station punching machine adopting a crank-connecting rod structure according to claim 1, wherein the piston-type driving mechanism is an oil cylinder. 4. The piston-type double-station punching machine adopting the crank-connecting rod structure according to one of claims 2 or 3, characterized in that: the two punching stations are symmetrically arranged with the axis of the connecting rod as the axis of symmetry . 5 . The piston-type double-station punching machine adopting a crank-connecting rod structure according to claim 4 , wherein two gears respectively meshing with the rack are symmetrically arranged with the axis of the connecting rod as a symmetric axis. 6 . 6. The piston-type double-station punching machine adopting a crank-connecting rod structure according to claim 5, characterized in that: the machine tool has a horizontal symmetrical layout.