CN205519231U - Can be along with self -adjusting connecting piece punching press side cut mould of connecting piece thickness - Google Patents

Abstract

The utility model discloses a connecting part stamping edge trimming die which can be automatically adjusted according to the thickness of the connecting part, which comprises an upper die base, a lower die base, a stretching punch, a trimming punch and a concave die. The bottom of the upper die base is provided with a trimming punch, a stretching punch and a distance sensor. The die includes a detachable ring coaxially arranged in the cavity of the die; the detachable ring is connected with the cavity of the die through threads. The bottom of the detachable ring is fixed with a lifting ring, which passes through the lower mold base and is fixedly connected to the rotating shaft through the connecting flange; the rotation of the rotating shaft is driven by a motor; the motor and the distance The sensor is connected. The inner cavity of the jacking ring constitutes the die cavity of the die, and the die cavity of the die is provided with inclined-plane molding inserts and inner escapes whose height can be raised and lowered. The top inner surface of the jacking ring is provided with trimming chamfers that can cooperate with the trimming punch. After adopting the above structure, stamping and trimming can be completed at one time, and can be automatically adjusted with the thickness of the connecting piece.

Description

A Stamping and Trimming Die for Connecting Parts that Can be Automatically Adjusted with the Thickness of Connecting Parts

technical field

The utility model relates to a punching die used in the production of connecting parts, in particular to a punching and trimming die for connecting parts which can be automatically adjusted with the thickness of the connecting parts.

Background technique

Connecting parts are a kind of metal parts commonly used in industries such as automobiles and electric tools. At present, stamping and drawing dies are used to produce connecting parts.

Since the traditional stamping and drawing dies can only stretch and form the connecting parts, they cannot trim the remaining edges of the pressing material around the stretched connecting parts, so at present, the stretched connecting parts are re- Put it into the punching machine to cut off the remaining edge of the binder. The disadvantage of the above process is that people need to carry out four edge trimming operations on the stretched connecting piece in the punch press to obtain the final product. Since the four edge trimming operations on the connecting piece in the punch press are independent, such Not only is it difficult to ensure the edge trimming accuracy of each connecting piece, but it also increases material loss due to improper operation by workers and increases the production cost of the enterprise.

In addition, when the thickness of the blank to be stamped and trimmed is thick, it is difficult to separate the final stamped product from the waste edge by the conventional trimming method, and a second trimming process is required, which delays working hours and reduces production efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a connector stamping and trimming die that can complete stamping and trimming at one time and can automatically adjust with the thickness of the connector.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A stamping and trimming die for connecting parts that can be automatically adjusted with the thickness of the connecting parts, comprising an upper die base, a lower die base, a drawing punch, a trimming punch and a concave die.

The upper mold base is coaxially fixed directly above the lower mold base, and the height can be raised and lowered.

The bottom of the upper die base is coaxially arranged with a trimming punch and a stretching punch from top to bottom; the bottom of the upper die base on one side of the trimming punch is also equipped with a distance sensor that can detect the thickness of the blank to be punched and trimmed .

The die is coaxially and fixedly arranged on the top of the lower die base, and the die includes a detachable ring coaxially arranged in the cavity of the die; the outer surface of the detachable ring is connected with the inner surface of the cavity of the die through threads.

The bottom of the detachable ring is fixedly provided with a jacking ring, the jacking ring passes through the lower mold base, and the bottom end of the jacking ring is fixedly connected with the rotating shaft through a connecting flange; the rotation of the rotating shaft Driven by a motor; the motor is connected to a distance sensor.

The inner cavity of the jacking ring constitutes the die cavity of the die, and the die cavity of the die is provided with inclined-plane molding inserts and inner escapes whose height can be raised and lowered.

The top inner surface of the jacking ring is provided with trimming chamfers that can cooperate with the trimming punch.

The lower mold base is fixedly arranged on the frame of the stamping machine tool.

The upper mold base is coaxially fixed and arranged directly above the lower mold base through telescopic guide pillars.

A knockout plate is arranged on the outer periphery of the stretching punch, and the knockout plate is connected with the bottom of the upper mold base through a spring.

The rotating shaft is a hollow shaft, and a lifting rod connected with a motor is arranged in the hollow shaft.

The motor is a stepping motor.

After the utility model adopts the above-mentioned structure, it has the following beneficial effects:

The above-mentioned distance sensor can automatically detect the thickness of the blank to be punched and trimmed. When the thickness of the blank is not higher than the set upper limit, the above-mentioned upper mold seat is pressed down, and the drawing punch cooperates with the inclined-plane forming insert in the die, thereby completing the blank. Automatic stamping operations for stamping trimmed blanks. Then, the upper die base continues to press down, and the trimming punch cooperates with the trimming chamfer on the top of the detachable ring, so that the trimming operation can be performed on the blank that has completed the stamping operation.

When the thickness of the billet is higher than the set upper limit, the above-mentioned motor starts to drive the jacking ring and the detachable ring to rise by a set value. Then, the above-mentioned upper die base is pressed down to complete the above-mentioned stamping and trimming operations.

Description of drawings

Fig. 1 is a structural schematic diagram of a stamping and trimming die for a connecting piece that can be automatically adjusted with the thickness of the connecting piece according to the utility model.

Including:

1. Lower mold base;

11. Concave mold; 12. Bevel forming insert; 13. Inner stripping; 131. Lifting rod; 14. Detachable ring; 141. Trimming and chamfering;

15. Lifting ring; 16. Connecting flange; 17. Motor; 171. Rotary shaft;

2. Upper mold seat;

21. Stretching punch; 22. Trimming punch; 23. Distance sensor;

3. Telescopic guide column;

4. Rack.

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific preferred embodiments.

As shown in FIG. 1 , a connector stamping trimming die that can automatically adjust with the thickness of the connector includes an upper die base 2 , a lower die base 1 , a drawing punch 21 , a trimming punch 22 and a die 11 .

The upper mold base is preferably coaxially fixed and arranged directly above the lower mold base through telescopic guide columns, and the height can be raised and lowered.

The bottom of the upper die base is coaxially arranged with a trimming punch and a stretching punch from top to bottom; the bottom of the upper die base on one side of the trimming punch is also equipped with a distance sensor that can detect the thickness of the blank to be punched and trimmed twenty three.

The outer periphery of the stretching punch is preferably provided with a knockout plate, which is connected to the bottom of the upper mold base by a spring.

The lower mold base is fixedly arranged on the frame 4 of the stamping machine tool.

The die is fixed coaxially on the top of the lower die base, and the die includes a detachable ring 14 coaxially arranged in the cavity of the die; the outer surface of the detachable ring is connected with the inner surface of the cavity by threads.

The bottom of the detachable ring is fixedly provided with a jacking ring 15, and the jacking ring passes through the lower mold base, and the bottom end of the jacking ring is fixedly connected with the rotating shaft 171 through the connecting flange 16; The rotation of the shaft is driven by a motor 17; the motor is connected to a distance sensor.

The inner cavity of the jacking ring constitutes the die cavity of the die, and in the die cavity of the die, an inclined-plane molding entry 12 and a lift-off inner drop 13 are provided.

The top inner surface of the jacking ring is provided with a trimming chamfer 141 that can cooperate with the trimming punch.

Further, the above-mentioned rotating shaft is a hollow shaft, and the lifting rod 131 connected with the motor is arranged in the hollow shaft.

Further, the above-mentioned motor is a stepping motor.

During punching and trimming operation, the above-mentioned distance sensor can automatically detect the thickness of the blank to be punched and trimmed. When the thickness of the blank is not higher than the set upper limit, the above-mentioned upper die seat is pressed down, and the inclined plane in the stretching punch and die is formed into the sub-section. Cooperate with each other to complete the automatic stamping operation of the trimming blank to be stamped. Then, the upper die base continues to press down, and the trimming punch cooperates with the trimming chamfer on the top of the detachable ring, so that the trimming operation can be performed on the blank that has completed the stamping operation.

When the thickness of the billet is higher than the set upper limit, the above-mentioned motor starts to drive the jacking ring and the detachable ring to rise by a set value. Then, the above-mentioned upper die base is pressed down to complete the above-mentioned stamping and trimming operations.

The preferred embodiment of the utility model has been described in detail above, but the utility model is not limited to the specific details in the above-mentioned embodiment, and within the scope of the technical concept of the utility model, various equivalent transformations can be carried out to the technical solution of the utility model , these equivalent transformations all belong to the protection scope of the present utility model.

Claims (6)

1. the connector punching and edge-cutting mould that automatically can adjust with connector thickness, including upper bolster, die shoe, stretching convex die, trimming punch and die；It is characterized in that:

Upper bolster is coaxially fixedly installed on the surface of die shoe, and height can lift；

The bottom of upper bolster is the most sequentially coaxially provided with trimming punch and stretching convex die；It is positioned at bottom the upper bolster of trimming punch side and is additionally provided with the range sensor that can detect trimming sotck thinkness to be punched；

Die is coaxially fixedly installed on the top of die shoe, and die includes the detachable annulus being co-axially located in die cavity；The outer surface of detachable annulus is threaded connection with die cavity inner surface；

The bottom of detachable annulus is fixedly installed jacking annulus, and jacking annulus passes from die shoe, and the bottom traversing through end of jacking annulus is connected by adpting flange and rotary shaft are fixing；The motor that is rotated through of this rotary shaft is driven；Motor is connected with range sensor；

The inner chamber of jacking annulus constitutes the die cavity of die, is provided with inclined-plane and is molded son and highly can take off in lifting in the die cavity of die；

The top inner surface of jacking annulus is provided with the trimming chamfering that can match with trimming punch.

Automatically the connector punching and edge-cutting mould that can adjust with connector thickness the most according to claim 1, it is characterised in that: described die shoe is fixedly installed in the frame of press machine.

Automatically the connector punching and edge-cutting mould that can adjust with connector thickness the most according to claim 1, it is characterised in that: described upper bolster is coaxially fixedly installed on the surface of die shoe by flexible guide pillar.

Automatically the connector punching and edge-cutting mould that can adjust with connector thickness the most according to claim 1, it is characterised in that: the periphery of described stretching convex die is provided with knockout plate, and this knockout plate is connected by spring with the bottom of upper bolster.

Automatically the connector punching and edge-cutting mould that can adjust with connector thickness the most according to claim 1, it is characterised in that: described rotary shaft is quill shaft, is provided with the elevating lever being connected with motor in this quill shaft.

Automatically the connector punching and edge-cutting mould that can adjust with connector thickness the most according to claim 1, it is characterised in that: described motor is stepper motor.