CN111438250A - A punching mechanism of a punching machine - Google Patents

Abstract

The invention provides a punching mechanism of a punching machine, comprising a base, an upper punching die, a lower supporting die and a feeding mechanism; the upper punching die includes a punch assembly, the punch assembly includes an upper punch and a lower punch, the upper punch A distance adjustment component for adjusting the distance is arranged between the punch and the lower punch. The upper punch is connected with the reciprocating piece, the reciprocating piece is fixed on the block, and the block is connected with the support seat through the moving component, and the support seat is fixed on the block. On the frame, the frame is fixed on the upper surface of the base; the lower support die is located directly below the punch assembly and is fixed in the base; the feeding mechanism is fixed on one side of the base for feeding the stamping blank; the invention Provided is a punching mechanism that can change the relative positions between punches and avoid sticking materials, and is especially suitable for punching of irregular-shaped plates.

Description

A punching mechanism of a punching machine

technical field

The invention relates to the technical field of mechanical equipment, in particular to a punching mechanism of a punching machine.

Background technique

The punching machine is also called a punching machine. The punching process saves materials and energy than traditional machining, and has high efficiency. It does not require high technical requirements for the operator. Through various mold applications, products that cannot be achieved by machining can be made, so the purpose of the punching machine is very Extensive; stamping production is mainly for the production of sheet metal, through the die, you can make blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting and extrusion, etc., widely used in various fields, Punch presses are widely used in stamping and forming of electronics, communications, computers, household appliances, furniture, vehicles, hardware parts and so on.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned problems in the prior art, and to provide a punching mechanism that can change the relative position between the punches while avoiding sticking, and is especially suitable for a punching machine for punching irregular-shaped plates.

The technical scheme of the present invention is: a punching mechanism of a punching machine, comprising a base, an upper punching die, a lower supporting die and a feeding mechanism;

The upper punching die includes a punch assembly, the punch assembly includes an upper punch and a lower punch, a distance adjustment assembly for adjusting the distance is arranged between the upper punch and the lower punch, and the upper punch is connected with the reciprocating moving part, The reciprocating piece is fixed on the block, the block is connected with the support seat through the moving component, the support seat is fixed on the frame, and the frame is fixed on the upper surface of the base;

The lower support die is located just below the punch assembly and is fixed in the base; the lower support die includes a support column, the support column is fixed on the upper end of the spring, the lower end of the spring is fixed inside the cylinder, and the cylinder is fixed in the groove opened in the base Inside; the two sides of the support column are respectively provided with a die assembly for cooperating with the lower punch, the die assembly includes a pressure module, the pressure module is located above the support column, the pressure module is also hinged with the die base, the die base It is fixed inside the groove opened by the base;

The feeding mechanism is fixed on one side of the base and is used to feed the punching blank.

The number of the above punch assemblies is two, wherein the block of one punch assembly is fixedly connected to the support seat, and the block of the other punch assembly is connected to the support seat through a moving assembly.

The above distance adjustment assembly includes a guide rod, the lower end of the guide rod is fixedly connected with the lower punch; the upper punch is provided with a guide groove matched with the guide rod, and a cylinder for pushing the guide rod is fixed on the upper punch. The end passes through the upper punch and is fixedly connected with the upper end of the guide rod.

The above-mentioned moving assembly includes a support seat, a groove is opened inside the support seat, a screw rod is arranged in the groove, the left and right ends of the screw rod are connected with the bearing seat through a bearing, and the bearing seat is fixed inside the groove, wherein one end of the screw rod is connected to the first end of the screw rod. The output shaft of the motor is connected; the screw rod is threadedly connected to the nut, the side walls of the nut are fixed with sliders, the sliders are slidably connected to the chute, and the nut is also fixedly connected to the block of the other punch assembly respectively.

The above-mentioned feeding mechanism includes a feeding table, the left and right sides of the feeding table are fixed with T-shaped sliding blocks, the T-shaped sliding blocks are slidably connected with the T-shaped sliding grooves, and the T-shaped sliding grooves are fixed on the base; the feeding The table is fixedly connected with the side wall of the ball nut, the ball nut is matched with the ball screw, the front and rear ends of the ball screw are connected with the bearing seat through a bearing, and the bearing seat is fixed on the base; one end of the ball screw is connected to the bearing seat. The output shaft of the second motor is connected, and the second motor is fixed on the base.

A vice for holding the blank is fixed on the feeding table of the above-mentioned feeding mechanism.

The reciprocating element is a hydraulic cylinder, the fixed end of the hydraulic cylinder is fixed on the block, and the telescopic end of the hydraulic cylinder is fixedly connected to the upper punch.

A collecting box for collecting stamping parts is also provided on the side of the base that is away from the feeding mechanism.

Beneficial effects of the present invention:

1. The punching mechanism provided in this application is provided with a distance adjustment component for adjusting the distance between the upper punch and the lower punch. For the punching of irregular-shaped plates, the punching distance requirements are different, and if the traditional punching mechanism is used, the The punch needs to be replaced repeatedly, which is complicated and inconvenient to operate. However, in the present application, a distance adjustment component for adjusting the distance is provided between the upper punch and the lower punch. The distance between the upper punch and the lower punch can be adjusted by starting the cylinder, which is simple and convenient.

2. The number of punch assemblies in this application is preferably two, and multiple punch assemblies can also be selected as needed, which is also used for punching irregular-shaped plates. If two grooves need to be punched on the same part, and the two The position of the two grooves is relatively close. If the secondary stamping is a waste of time and it is difficult to ensure the integrity of the stamping parts, two punch assemblies are designed, and the relative position between the two punch assemblies can be adjusted. The distance between these two punch assemblies makes punching simple and convenient.

3. The lower supporting die of the present application is provided with a supporting column. During stamping, the blank is driven to press down the pressing module under the action of pressure. When the pressing module is pressed, the supporting column will be pressed downward under the action of the pressing force. The spring, after one extrusion is completed, will drive the pressing module to rotate around the die seat under the action of the spring force, the spring will bounce the support column, and the support column will drive the stamping part after stamping to bounce.

4. The feeding mechanism of the present application is used to clamp the left and right sides of the billet respectively. The billet on both sides is easily and conveniently clamped with a vise. At the same time, the stepping motor drives the ball screw and the ball nut to rotate to drive the feed. Intermittent feeding of the table also realizes the intermittent feeding of blanks.

5. Hydraulic cylinders are selected for the reciprocating moving parts of the present application, and the impact force is relatively large.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

2 is a schematic structural diagram of a mobile assembly of the present invention;

Fig. 3 is the structural representation of the supporting mold under the present invention;

FIG. 4 is a schematic structural diagram of the cooperation between the T-shaped slider and the T-shaped chute according to the present invention.

1. Base; 2. Upper punch; 3. Lower punch; 4. Reciprocating parts; 5. Block; 6. Support seat; 7. Frame; 8. Support column; 9. Spring; 10. Cylinder ;11, pressure module; 12, die base; 13, guide rod; 14, guide groove; 15, cylinder; 16, groove; 17, screw; 18, bearing seat; 19, first motor; 20, nut; 21 , slider; 22, chute; 23, feed table; 24, T-type slider; 25, T-type chute; 26, ball nut; 27, ball screw; 28, second motor; 29, vise ; 30. Collection box.

Detailed ways

A specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

Example 1:

The embodiment of the present invention provides a punching mechanism of a punching machine, including a base 1, an upper punching die, a lower supporting die, and a feeding mechanism;

The upper punching die includes a punch assembly. The punch assembly includes an upper punch 2 and a lower punch 3. A distance adjustment assembly for adjusting the distance is provided between the upper punch 2 and the lower punch 3. The reciprocating member 4 is connected, the reciprocating member 4 is fixed on the block 5, the block 5 is connected with the support base 6 through the moving assembly, the support base 6 is fixed on the frame 7, and the frame 7 is fixed on the upper surface of the base 1;

The lower support die is located just below the punch assembly and is fixed in the base 1; the lower support die includes a support column 8, the support column 8 is fixed on the upper end of the spring 9, the lower end of the spring 9 is fixed inside the cylinder 10, and the cylinder 10 It is fixed inside the groove opened by the base 1; the two sides of the support column 8 are respectively provided with a compression die assembly for cooperating with the lower punch 3, and the compression die assembly includes a compression module 11, and the compression module 11 is located in the support column. 8 above, the pressing module 11 is also hinged with the die base 12, and the die base 12 is fixed inside the groove opened by the base 1;

The feeding mechanism is fixed on one side of the base 1 and is used to feed the punching blanks.

Further, the number of the punch assemblies is two, of which the block 5 of one punch assembly is fixedly connected to the support seat 6, and the block body 5 of the other punch assembly is connected to the support seat 6 through a moving assembly connect.

Further, the distance adjustment assembly includes a guide rod 13, and the lower end of the guide rod 13 is fixedly connected with the lower punch 3; the upper punch 2 is provided with a guide groove 14 that cooperates with the guide rod 13, and the upper punch 2 is fixed on the There is a cylinder 15 for pushing the guide rod 13 , and the telescopic end of the cylinder 15 is fixedly connected to the upper end of the guide rod 13 through the upper punch 2 .

Further, the moving assembly includes a support seat 6, a groove 16 is formed inside the support seat 6, a screw 17 is arranged in the groove 16, the left and right ends of the screw 17 are connected to the bearing seat 18 through bearings, and the bearing seat 18 is fixed. Inside the groove 16, one end of the screw rod 17 is connected with the output shaft of the first motor 19; the screw rod 17 is threadedly connected with the nut 20, the side wall of the nut 20 is fixed with a slider 21, and the slider 21 is slidably connected with the chute 22 , the nut 20 is also fixedly connected with the block 5 of the other punch assembly respectively.

Further, the reciprocating member 4 is a hydraulic cylinder, the fixed end of the hydraulic cylinder is fixed on the block 5 , and the telescopic end of the hydraulic cylinder is fixedly connected with the upper punch 2 .

Further, a collecting box 30 for collecting stamping parts is also provided on the side of the base 1 away from the feeding mechanism.

In the punching mechanism provided by the present application, a distance adjusting component for adjusting the distance is provided between the upper punch 2 and the lower punch 3. For the punching of irregular-shaped plates, the punching distance is different, and if the traditional punching mechanism is used, the It is necessary to replace the punch repeatedly, which is complicated and inconvenient to operate. In the present application, a distance adjustment component for adjusting the distance is provided between the upper punch 2 and the lower punch 3. The distance adjustment component can choose a cylinder. When adjusting the distance Just start the cylinder to adjust the distance between the upper punch and the lower punch, which is simple and convenient;

The number of punch assemblies in this application is preferably two, and multiple punch assemblies can also be selected according to needs, which are also used for punching irregular-shaped plates. If two grooves need to be punched on the same part, and the two grooves The position of the groove is relatively close, if the secondary stamping is a waste of time and it is difficult to ensure the integrity of the stamping parts, so two punch assemblies are designed, the relative position between the two punch assemblies can be adjusted, and the two punch assemblies can be adjusted. The distance between the punch components makes punching simple and convenient;

Hydraulic cylinders are selected for the reciprocating moving parts in this application, which have a large impact force and can meet the needs of stamping use.

Example 2:

This embodiment is based on Embodiment 1. The feeding mechanism includes a feeding table 23 . T-shaped sliding blocks 24 are fixed on the left and right sides of the feeding table 23 . The T-shaped sliding blocks 24 are slidably connected with the T-shaped sliding grooves 25 . The type chute 25 is fixed on the base 1; the feed table 23 is fixedly connected to the side wall of the ball nut 26, the ball nut 26 cooperates with the ball screw 27, and the front and rear ends of the ball screw 27 are connected to each other through a bearing. The bearing seat is connected, and the bearing seat is fixed on the base 1 ; one end of the ball screw 27 is connected with the output shaft of the second motor 28 , and the second motor 28 is fixed on the base 1 .

Further, a vice 29 for holding the blank is fixed on the feeding table 23 of the feeding mechanism.

In the present application, when using the punching mechanism to punch the plate, first use the vice 29 to clamp the left and right sides of the blank, and then simultaneously start the second motor 28 of the feeding mechanism, and the second motor 28 drives the ball screw 27 to rotate , the rotation of the ball screw 27 drives the rotation of the ball nut 26, the rotation of the ball nut 26 drives the movement of the feeding table 23, and the movement of the feeding table 23 drives the T-shaped slider 24 to slide along the T-shaped chute 25, which can ensure the sliding of the feeding table 23. stability.

The working principle of the present invention:

When using the punching mechanism of the punching machine, first use the vice 29 to clamp the left and right sides of the blank, and then simultaneously start the second motor 28 of the feeding mechanism, the second motor 28 drives the ball screw 27 to rotate, and the ball The rotation of the lead screw 27 drives the ball nut 26 to rotate, the rotation of the ball nut 26 drives the feed table 23 to move, and the movement of the feed table 23 drives the T-shaped slider 24 to slide along the T-shaped chute 25;

After the blank is fed to the appropriate position, the number and time of starting the two punch assemblies are selected according to the shape of the part. If two punches are required to be punched at the same time, the two punch assemblies are adjusted according to the shape of the punched part. When adjusting the front and rear positions, just start the first motor 19, the first motor 19 drives the screw 17 to rotate, the screw 17 is threadedly connected with the nut 20, the rotation of the screw 17 drives the nut 20 to move back and forth, and the nut 20 drives its side wall to be fixed. The slider 21 slides along the chute 22, and at the same time, the nut 20 will also drive another punch assembly to move back and forth to change the front and rear distance of the two punch assemblies;

After the front and rear distances of the two punch assemblies are adjusted, the punching depth needs to be adjusted. When the punching depth needs to be adjusted, the distance adjustment assembly between the upper punch 2 and the lower punch 3 is activated, and the cylinder 15 and the cylinder 15 are activated. The driven telescopic end drives the guide rod 13 to slide along the guide groove 14, and the guide rod 13 drives the lower punch 3 to move downward to change the distance between the upper punch 2 and the lower punch 3, so that the difference between the lower punch 3 of different stamping components is The lowest point is not the same, then the punching depth of the two punching components is not the same;

After the front and rear distance of the punching assembly and the upper and lower punching depths are adjusted, start the reciprocating moving part 4 of the punching assembly, and the reciprocating moving part 4 drives the upper punch 2 and the lower punch 3 to punch the blank together, and the blank is in the lower punch 3. Under the action of the force, it cooperates with the pressing module 11 of the lower support die. After the pressing module 11 is rotated to the limit position, the blank is stamped and formed, and the pressing module 11 will also drive the support column 8 to press down the spring 9; Under the action, the pressing module 11 will be driven to rotate around the die base 12, the spring 9 will bounce the support column 8, and the support column 8 will drive the stamping part after stamping to bounce;

After the stamping is completed, the feeding mechanism is started again. At this time, the stamped parts after stamping will advance together into the collection box 30 under the action of force.

To sum up, the embodiments of the present invention provide a punching mechanism that can change the relative position between the punches while avoiding sticking materials, and is especially suitable for punching a punching machine with irregular shapes.

The above disclosures are only a few specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims (8)

1. A punching mechanism of a punching machine, characterized in that it comprises a base (1), an upper punching die, a lower supporting die and a feeding mechanism; The upper punching die includes a punch assembly, the punch assembly includes an upper punch (2) and a lower punch (3), and a distance for adjusting the distance is provided between the upper punch (2) and the lower punch (3). Adjusting assembly, the upper punch (2) is connected with the reciprocating element (4), the reciprocating element (4) is fixed on the block (5), and the block (5) is connected with the support seat (6) through the moving assembly, supporting The seat (6) is fixed on the frame (7), and the frame (7) is fixed on the upper surface of the base (1); The lower support die is located directly below the punch assembly and is fixed in the base (1); the lower support die includes a support column (8), the support column (8) is fixed on the upper end of the spring (9), and the lower end of the spring (9) It is fixed inside the cylinder (10), and the cylinder (10) is fixed inside the groove opened by the base (1). A compression mold assembly, the compression mold assembly includes a compression module (11), the compression module (11) is located above the support column (8), the compression module (11) is also hinged with the mold base (12), and the mold base (12) is fixed on the Inside the groove opened by the base (1); The feeding mechanism is fixed on one side of the base (1), and is used for feeding punching blanks. 2. The punching mechanism of a punching machine according to claim 1, wherein the number of the punch assemblies is two, wherein the block (5) of one punch assembly is connected to the support seat (6). ) is fixedly connected, and the block (5) of the other punch assembly is connected with the support seat (6) through the moving assembly. 3. The punching mechanism of a punching machine according to claim 1, wherein the distance adjustment assembly comprises a guide rod (13), and the lower end of the guide rod (13) is fixedly connected with the lower punch (3); The upper punch (2) is provided with a guide groove (14) that cooperates with the guide rod (13), and a cylinder (15) for pushing the guide rod (13) is fixed on the upper punch (2), and the cylinder (15) The telescopic end of the rod passes through the upper punch (2) and is fixedly connected with the upper end of the guide rod (13). 4. The punching mechanism of a punching machine according to claim 2, wherein the moving assembly comprises a support seat (6), and a groove (16) is provided inside the support seat (6), and the groove (16) ) is provided with a screw (17), the left and right ends of the screw (17) are connected with the bearing seat (18) through bearings, and the bearing seat (18) is fixed inside the groove (16), wherein one end of the screw (17) is connected to the bearing seat (18). The output shaft of the first motor (19) is connected; the screw rod (17) is threadedly connected with a nut (20), a sliding block (21) is fixed on the side wall of the nut (20), and the sliding block (21) is connected with the chute (22) In the sliding connection, the nut (20) is also fixedly connected with the block (5) of the other punch assembly respectively. 5. The punching mechanism of a punching machine according to claim 1, wherein the feeding mechanism comprises a feeding table (23), and T-shaped sliders are fixed on the left and right sides of the feeding table (23). (24), the T-shaped sliding block (24) is slidably connected with the T-shaped sliding groove (25), and the T-shaped sliding groove (25) is fixed on the base (1); the feeding table (23) is connected to the ball nut (26) The side wall is fixedly connected, the ball nut (26) is matched with the ball screw (27), the front and rear ends of the ball screw (27) are connected with the bearing seat through a bearing, and the bearing seat is fixed on the base (1). ); one end of the ball screw (27) is connected with the output shaft of the second motor (28), and the second motor (28) is fixed on the base (1). 6. The punching mechanism of a punching machine according to claim 5, characterized in that, a vice (29) for holding the blank is fixed on the feeding table (23) of the feeding mechanism. 7. The punching mechanism of a punching machine according to claim 1, wherein the reciprocating member (4) is a hydraulic cylinder, and the fixed end of the hydraulic cylinder is fixed on the block (5), and the hydraulic pressure The telescopic end of the cylinder is fixedly connected with the upper punch (2). 8. The punching mechanism of a punching machine according to claim 1, wherein a collecting box (30) for collecting punched parts is further provided on the side of the base (1) away from the feeding mechanism .

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