Rapid positioning mechanism for continuous die material belt

Abstract

The utility model discloses a continuous die material belt quick positioning mechanism which comprises a lower die plate (1), a plurality of pairs of guiding floating material shafts (2) are arranged on the lower die plate (1), and the edge of a machined continuous die material belt (3) is movably connected in limiting grooves formed in the guiding floating material shafts (2), and the continuous die material belt quick positioning mechanism is characterized in that a special-shaped groove is formed in the lower die plate (1), a positioning rod (4) is movably connected in the special-shaped groove, and the positioning rod (4) is movably connected with the guiding floating material shafts (2). The outer end (5) of the positioning rod (4) is connected with one end of a spring (6), the other end of the spring (6) is fixedly connected to the lower die plate (1), a plurality of positioning grooves (7) distributed at equal intervals are punched in the side edge of the progressive die material belt (3), meanwhile, a guide pin hole (8) is further formed in the surface of the progressive die material belt (3), and the inner end (9) of the positioning rod (4) is matched with the positioning grooves (7). And a positioning guide hole (10) is formed in the positioning rod (4).

Description

Technical Field

[0001] The utility model relates to the field of stamping dies, in particular to a continuous die material belt rapid positioning mechanism. Background Art

[0002] When performing forming processing on certain metal materials, it is often necessary to adopt a progressive stamping process. The stamping die used in the progressive stamping process generally includes an upper die and a lower die. Templates are respectively provided on the upper die and the lower die. The upper die moves toward the lower die under the drive of the forming machine. During the movement, the material strip between the upper and lower dies is stamped into a shape that matches the die to form a workpiece.

[0003] In the process of progressive stamping, the continuous die belt needs to move forward in a progressive and step-by-step manner to cooperate with the stamping action of the mold; in order to ensure the processing quality, the distance of each movement of the continuous die belt needs to be constant. However, in the actual production process, due to the accuracy and cumulative deviation of the feeder, feeding deviation often occurs. In order to solve this problem, in the traditional structure, before the mold approaches the working angle, the feeder will relax the clamping roller to allow the continuous die belt to be temporarily free, and then the upper mold drives the guide pin close to the continuous die belt, and the guide pin will be inserted into the guide hole on the continuous die belt to correct the feeding deviation and achieve precise positioning.

[0004] However, the above situation can only be applied when the deviation is relatively small. Once the deviation is large, the guide pin cannot enter the guide hole, which may cause product defects or even damage to the mold.

[0005] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0006] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a rapid positioning mechanism with simple structure, ingenious design, reasonable layout, and the ability to accurately ensure the travel distance of the continuous die material belt each time, prevent the feeding from exceeding the step distance, and thus ensure the processing quality.

[0007] The technical solution of the utility model is: a continuous die belt rapid positioning mechanism, including a lower template 1, a plurality of pairs of guide floating material shafts 2 are arranged on the lower template 1, the edge of the processed continuous die belt 3 is movably connected to the limit groove opened on the guide floating material shaft 2, characterized in that: a special-shaped groove is opened in the lower template 1, a positioning rod 4 is movably connected in the special-shaped groove, the outer end 5 of the positioning rod 4 is connected to one end of a spring 6, and the other end of the spring 6 is fixedly connected to the lower template 1, a plurality of positioning grooves 7 with equal spacing are punched at the side edge of the continuous die belt 3, and a guide pin hole 8 is also opened on the surface of the continuous die belt 3, the inner end 9 of the positioning rod 4 matches the positioning groove 7, and a positioning guide hole 10 is opened on the positioning rod 4,

[0008] An upper die seat 11 is provided to match the lower die plate 1. A guide pin 12 and a drive shaft 13 are provided on the upper die seat 11. The guide pin 12 matches the guide pin hole 8. The drive shaft 13 matches the guide hole 10. The front ends of the guide pin 12 and the drive shaft 13 are both hemispherical truncated cones. When the upper die seat 11 drives the guide pin 12 and the drive shaft 13 to move toward the lower die plate 1, the guide pin 12 is inserted into the guide pin hole 8 only after the drive shaft 13 is inserted into the positioning guide hole 10.

[0009] When the drive shaft 13 is inserted into the positioning guide hole 10, the inner end 9 of the positioning rod 4 will not interfere with the movement trajectory of the continuous mold belt 3. When the drive shaft 13 is separated from the positioning guide hole 10, the inner end 9 of the positioning rod 4 will interfere with the movement trajectory of the continuous mold belt 3.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The continuous die belt quick positioning mechanism of this structural form has a simple structure, ingenious design, and reasonable layout. It is designed to solve the problems existing in the traditional progressive continuous die stamping mechanism and has a special structure. It is designed with a positioning rod that can directly position the continuous die belt. The end of the positioning rod can automatically pop out after the continuous die belt moves into place and enter the positioning groove opened on the side of the continuous die belt to achieve positioning. Since the action of this positioning rod precedes the action of the guide pin on the upper die seat, that is, the continuous die belt conveyed is first positioned by the positioning rod, and then the continuous die belt is positioned for the second time by the guide pin. This can effectively ensure the positioning accuracy, thereby achieving the purpose of avoiding misalignment processing. In addition, the manufacturing process of this quick positioning mechanism is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a structural schematic diagram of an embodiment of the utility model (working state one).

[0013] Figure 2 It is a structural schematic diagram of the guide floating material shaft part in the embodiment of the utility model.

[0014] Figure 3 It is a structural schematic diagram of an embodiment of the utility model (working state two).

[0015] Figure 4 It is a structural schematic diagram of an embodiment of the utility model (working state three).

[0016] Figure 5 It is a side view of an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings: Figures 1 to 5 As shown,

[0018] The working process of a drawing die that can ensure the drawing quality according to an embodiment of the utility model is as follows: a continuous die belt quick positioning mechanism, including a lower template 1, a plurality of pairs of guide floating material shafts 2 are arranged on the lower template 1, and the edge of the processed continuous die belt 3 is movably connected to the limiting groove provided on the guide floating material shaft 2, characterized in that: a special-shaped groove is provided in the lower template 1, a positioning rod 4 is movably connected in the special-shaped groove, the outer end 5 of the positioning rod 4 is connected to one end of a spring 6, and the other end of the spring 6 is fixedly connected to the lower template 1, a plurality of positioning grooves 7 distributed at equal intervals are punched at the side edge of the continuous die belt 3, and a guide pin hole 8 is also provided on the surface of the continuous die belt 3, the inner end 9 of the positioning rod 4 matches the positioning groove 7, and a positioning guide hole 10 is provided on the positioning rod 4,

[0019] An upper die seat 11 is provided to match the lower die plate 1. A guide pin 12 and a drive shaft 13 are provided on the upper die seat 11. The guide pin 12 matches the guide pin hole 8. The drive shaft 13 matches the guide hole 10. The front ends of the guide pin 12 and the drive shaft 13 are both hemispherical truncated cones. When the upper die seat 11 drives the guide pin 12 and the drive shaft 13 to move toward the lower die plate 1, the guide pin 12 is inserted into the guide pin hole 8 only after the drive shaft 13 is inserted into the positioning guide hole 10.

[0020] When the drive shaft 13 is inserted into the positioning guide hole 10, the inner end 9 of the positioning rod 4 will not interfere with the movement trajectory of the continuous mold belt 3. When the drive shaft 13 is separated from the positioning guide hole 10, the inner end 9 of the positioning rod 4 will interfere with the movement trajectory of the continuous mold belt 3.

[0021] The working process of the continuous die belt quick positioning mechanism of the utility model embodiment is as follows: when performing progressive stamping operation, the continuous die belt 3 realizes progressive movement under the action of the feeder. In the initial state, since the driving shaft 13 is separated from the positioning rod 4, the positioning rod 4 is pulled inwardly under the action of the spring 6, and its inner end 9 interferes with the movement trajectory of the continuous die belt 3. Since the force of the inner end 9 acts on the outer edge of the belt, the continuous die belt 3 can move normally. During the movement, the inner end 9 contacts and slides with the edge of the continuous die belt 3.

[0022] When a certain positioning groove 7 moves to the inner end 9, under the action of the spring 6, the positioning rod 4 moves, and the inner end 9 enters the positioning groove 7, hindering the movement of the continuous mold belt 3, and the continuous mold belt 3 stops; at this time, the position of the continuous mold belt 3 is the processing position;

[0023] Then the upper die seat 11 will move in the direction of the continuous die belt 3. During the movement, the front end of the driving shaft 13 will first be inserted into the positioning guide hole 10 opened on the positioning rod 4. Since the end of the driving shaft 13 is truncated, after the driving shaft 13 is inserted into the positioning guide hole 10, the positioning rod 4 will move in space under the action of the driving shaft 13, that is, when the driving shaft 13 is inserted into the positioning guide hole 10, the inner end 9 on the positioning rod 4 is recovered to a position that does not interfere with the movement trajectory of the continuous die belt 3, and will not hinder the normal movement of the continuous die belt 3.

[0024] During the above process, the guide pin 12 is also inserted into the guide pin hole 8 to fine-tune the plane position of the continuous die strip 3, and then the mold set on the upper mold base 11 performs a stamping process on the continuous die strip 3;

[0025] After one stamping operation is completed, the upper die seat 11 moves upward, the guide pin 12 and the drive shaft 13 move upward, the guide pin 12 releases the limit on the continuous die belt 3, and the drive shaft 13 releases the limit on the positioning rod 4. The positioning rod 4 is pulled inward and to the right under the action of the spring 6, and the inner end 9 returns to the right side of the positioning groove 7 and does not enter the groove. The continuous die belt 3 regains its freedom and moves a certain distance again under the action of the feeder, and repeats the above actions to achieve progressive stamping of the continuous die belt 3.

Claims

1. A continuous die strip quick positioning mechanism, comprising a lower die plate (1), on which a plurality of pairs of guide floating shafts (2) are arranged, and the edge of the processed continuous die strip (3) is movably connected to a limiting groove provided on the guide floating shaft (2), characterized in that: The lower template (1) is provided with a special-shaped groove, in which a positioning rod (4) is movably connected, the outer end (5) of the positioning rod (4) is connected to one end of a spring (6), and the other end of the spring (6) is fixedly connected to the lower template (1), a plurality of positioning grooves (7) distributed at equal intervals are punched at the side edge of the continuous mold material belt (3), and a guide pin hole (8) is also provided on the surface of the continuous mold material belt (3), the inner end (9) of the positioning rod (4) matches the positioning groove (7), and a positioning guide hole (10) is provided on the positioning rod (4), An upper die seat (11) is provided to match the lower die plate (1), and a guide pin (12) and a drive shaft (13) are provided on the upper die seat (11). The guide pin (12) matches the guide pin hole (8), and the drive shaft (13) matches the guide hole (10). The front ends of the guide pin (12) and the drive shaft (13) are both in the shape of a truncated cone with a hemispherical end. When the upper die seat (11) drives the guide pin (12) and the drive shaft (13) to move toward the lower die plate (1), the guide pin (12) is inserted into the guide pin hole (8) only after the drive shaft (13) is inserted into the positioning guide hole (10). When the drive shaft (13) is inserted into the positioning guide hole (10), the inner end head (9) of the positioning rod (4) will not interfere with the movement trajectory of the continuous mold material belt (3); when the drive shaft (13) is separated from the positioning guide hole (10), the inner end head (9) of the positioning rod (4) will interfere with the movement trajectory of the continuous mold material belt (3).

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