Batch stamping equipment for small-size workpieces

Abstract

The utility model discloses a batch stamping device for small-size workpieces, which comprises a fixed die plate and a movable die plate, a plurality of mounting through grooves distributed in a rectangular array are arranged in the fixed die plate, stamping cavity inserts are inlaid on the inner sides of the mounting through grooves, forming cavities are arranged on the surfaces of the stamping cavity inserts, and the movable die plate is arranged in the forming cavities. A plurality of stamping mold core inserts distributed in a rectangular array mode are detachably installed in the movable mold plate, forming mold cores are fixed to the outer surfaces of the stamping mold core inserts, a plurality of installation grooves are formed in the fixed mold plate and the movable mold plate, and two symmetrical rotary connecting rods are rotationally installed in the installation grooves. Connecting clamping grooves are formed in the outer side of the stamping cavity insert and the outer side of the stamping core insert. When small-size workpieces or parts are produced in batches, the purpose of reducing the use cost and the production cost of the die is achieved, the independent stamping cavity insert or the stamping core insert can be independently replaced, and the maintenance cost of the die is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping equipment, in particular to batch stamping equipment for small-sized workpieces. Background Art

[0002] Stamping is a forming method that uses a press and a die to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size. Stamping and forging belong to plastic processing (or pressure processing), collectively known as forging. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips.

[0003] Stamping production requires the use of stamping dies. Stamping dies are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. They are called cold stamping dies (commonly known as cold stamping dies). Stamping can be used to produce various large metal parts or batch produce some smaller parts. When batch producing smaller parts, multiple parts can be produced in one stamping.

[0004] However, when producing small-sized workpieces or parts, the existing stamping dies need to produce the fixed mold and the movable mold according to the size and shape of the mold. Each workpiece or part requires a set of molds, which increases the production cost. Therefore, it does not meet the existing needs. In this regard, we propose a batch stamping equipment for small-sized workpieces. Utility Model Content

[0005] The purpose of the utility model is to provide a batch stamping equipment for small-sized workpieces, so as to solve the problem that the existing stamping mold proposed in the above background technology needs to produce the fixed mold and the movable mold of the mold according to the generated size and shape when producing small-sized workpieces or parts, and each workpiece or part requires a set of molds, which leads to increased production costs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a batch stamping equipment for small-sized workpieces, comprising a fixed template and a movable template, wherein the interior of the fixed template is provided with a plurality of installation through grooves distributed in a rectangular array, the inner side of the installation through grooves is inlaid with a stamping cavity insert, the surface of the stamping cavity insert is provided with a molding cavity, the interior of the movable template is detachably provided with a plurality of stamping core inserts distributed in a rectangular array, the outer surface of the stamping core insert is fixed with a molding core, the interiors of the fixed template and the movable template are both provided with a plurality of installation grooves, two symmetrical rotating connecting rods are rotatably installed in the interiors of the installation grooves, the outer sides of the stamping cavity insert and the stamping core insert are both provided with connecting slots, one end of the rotating connecting rod is clamped on the inner side of the connecting slot to limit the position of the stamping cavity insert and the stamping core insert, the other end of the rotating connecting rod is penetrated and fixed with an axle pin, both ends of the axle pin are rotatably inserted in the interior of the fixed template or the movable template and a torsion spring is sleeved on the outer side of the end.

[0007] Preferably, a pressure block is slidably installed between the two rotating connecting rods, the end of the pressure block in contact with the rotating connecting rod is provided with two symmetrical inclined surfaces, and the end of the rotating connecting rod in contact with the pressure block is provided with a guiding surface.

[0008] Preferably, the inclined surface at the end of the pressure block and the guiding surface at the end of the rotating connecting rod both have an inclination angle of forty-five degrees.

[0009] Preferably, the other end of the pressure block is slidably inserted into the fixed mold plate or the movable mold plate, and a guide magnet is fixed to the secondary end of the pressure block, and a return spring is sleeved on the outer side of the end of the pressure block connected to the guide magnet.

[0010] Preferably, an electromagnet is fixed inside the fixed mold plate or the movable mold plate, the electromagnet is magnetically adsorbed and connected to the guide magnet, and the reset spring is located between the pressure block and the fixed mold plate or the movable mold plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model replaces the stamping cavity inserts and stamping core inserts embedded in the fixed template and the movable template according to the shape and size of the workpiece or part to be produced, without replacing the fixed template and the movable template of the mold, thereby reducing the number of molds used, thereby achieving the purpose of reducing the mold use cost and production cost when mass producing small-sized workpieces or parts, and independent stamping cavity inserts or stamping core inserts can be replaced separately, reducing the mold maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural sectional view of the fixed template of the utility model;

[0015] Figure 3 This is a structural sectional view of the movable template of the utility model;

[0016] Figure 4 for Figure 2 A magnified view of the structure at center.

[0017] In the figure: 1. Fixed mold plate; 2. Moving mold plate; 3. Stamping cavity insert; 4. Stamping core insert; 5. Molding cavity; 6. Molding core; 7. Mounting through groove; 8. Pressure block; 9. Rotating connecting rod; 10. Mounting groove; 11. Connecting card slot; 12. Reset spring; 13. Guide magnet; 14. Electromagnet. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] like Figures 1 to 4 As shown, a batch stamping equipment for small-sized workpieces is provided, wherein a plurality of installation through grooves 7 distributed in a rectangular array are provided inside the fixed plate 1, a stamping cavity insert 3 is inlaid on the inner side of the installation through groove 7, a molding cavity 5 is provided on the surface of the stamping cavity insert 3, a plurality of stamping core inserts 4 distributed in a rectangular array are detachably installed inside the movable plate 2, a molding core 6 is fixed on the outer surface of the stamping core insert 4, a plurality of installation grooves 10 are provided inside the fixed plate 1 and the movable plate 2, two symmetrical rotating connecting rods 9 are rotatably installed inside the installation grooves 10, the stamping cavity insert 3 and the stamping cavity insert 3 are detachably installed inside the movable plate 2, a molding core 6 is fixed on the outer surface of the stamping core insert 4, a plurality of installation grooves 10 are provided inside the fixed plate 1 and the movable plate 2, two symmetrical rotating connecting rods 9 are rotatably installed inside the installation grooves 10, The outer side of the core insert 4 is provided with a connecting groove 11, and one end of the rotating connecting rod 9 is clamped on the inner side of the connecting groove 11 to limit the position of the stamping cavity insert 3 and the stamping core insert 4. The other end of the rotating connecting rod 9 is penetrated and fixed with an axle pin. Both ends of the axle pin are rotatably inserted into the fixed mold plate 1 or the movable mold plate 2 and a torsion spring is sleeved on the outer side of the end. The rotatable rotating connecting rod 9 in the installation groove 10 is used to fix the position of the stamping cavity insert 3 and the stamping core insert 4 to ensure that the stamping cavity insert 3 and the stamping core insert 4 will not fall out of the fixed mold plate 1 and the movable mold plate 2 after installation.

[0020] A pressure block 8 is slidably installed between the two rotating connecting rods 9. The ends of the pressure block 8 that contact the rotating connecting rod 9 are provided with two symmetrical inclined surfaces. The ends of the rotating connecting rod 9 that contact the pressure block 8 are provided with guide surfaces. The inclined surfaces at the ends of the pressure block 8 and the guide surfaces at the ends of the rotating connecting rod 9 are both at an inclination angle of forty-five degrees. The pressure block 8 is inserted between the two rotating connecting rods 9 to limit the positions of the two rotating connecting rods 9, thereby ensuring that the ends of the rotating connecting rods 9 will not detach from the connecting slots 11.

[0021] The other end of the pressure block 8 is slidably inserted into the fixed mold plate 1 or the movable mold plate 2, and a guide magnet 13 is fixed to the secondary end of the pressure block 8, and a return spring 12 is sleeved on the outer side of the end of the pressure block 8 connected to the guide magnet 13, and an electromagnet 14 is fixed inside the fixed mold plate 1 or the movable mold plate 2. The electromagnet 14 and the guide magnet 13 are magnetically adsorbed and connected. The return spring 12 is located between the pressure block 8 and the fixed mold plate 1 or the movable mold plate 2. The return spring 12 is used to support the position of the pressure block 8 to ensure that when the electromagnet 14 does not magnetically adsorb the guide magnet 13, the pressure block 8 will not move between the two rotating connecting rods 9, thereby ensuring the stability of the position of the two rotating connecting rods 9.

[0022] Working principle: When it is necessary to perform stamping processing on workpieces or parts of different shapes or sizes, it is only necessary to connect the power supply of the electromagnet 14 inside the fixed template 1 and the movable template 2, so that the electromagnet 14 magnetically attracts the guide magnet 13. At this time, the guide magnet 13 drives the pressure block 8 to move toward the electromagnet 14, and the pressure block 8 is removed from between the two rotating connecting rods 9 and the reset spring 12 is compressed. When the pressure block 8 is moved, the rotating connecting rod 9 loses the pressure of the pressure block 8. At this time, the torsion spring connected to the axle pin fixed at the end of the rotating connecting rod 9 is twisted and reset, so that the rotating connecting rod 9 rotates toward the inside of the mounting groove 10, so that the end of the rotating connecting rod 9 is separated from the connecting card groove 11 on the side of the stamping cavity insert 3 and the stamping core insert 4. Then the staff takes out the stamping cavity insert 3 and the stamping core insert 4 from the fixed template 1 and the movable template 2 respectively, and replaces them with the stamping inserts corresponding to the workpiece or part. The cavity insert 3 and the stamping core insert 4 are removed, and the power supply of the electromagnet 14 is disconnected. The reset spring 12 elastically recovers and drives the pressure block 8 to reset, so that the pressure block 8 enters between the two rotating connecting rods 9 and squeezes the end of the rotating connecting rod 9, so that the end of the rotating connecting rod 9 enters the connecting groove 11 on the side of the newly installed stamping cavity insert 3 and the stamping core insert 4 to fix the stamping cavity insert 3 and the stamping core insert 4. According to the shape and size of the workpiece or part to be produced, the stamping cavity insert 3 and the stamping core insert 4 embedded in the fixed template 1 and the movable template 2 are replaced. There is no need to replace the fixed template 1 and the movable template 2 of the mold, thereby reducing the number of molds used, thereby achieving the purpose of reducing the mold use cost and production cost when mass producing small-sized workpieces or parts, and the independent stamping cavity insert 3 or the stamping core insert 4 can be replaced separately, reducing the mold maintenance cost.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A batch stamping device for small-sized workpieces, comprising a fixed die plate (1) and a movable die plate (2), characterized in that: The fixed template (1) is provided with a plurality of installation through grooves (7) distributed in a rectangular array, the inner side of the installation through grooves (7) is inlaid with a stamping cavity insert (3), the surface of the stamping cavity insert (3) is provided with a molding cavity (5), the movable template (2) is detachably provided with a plurality of stamping core inserts (4) distributed in a rectangular array, the outer surface of the stamping core insert (4) is fixed with a molding core (6), the fixed template (1) and the movable template (2) are both provided with a plurality of installation grooves (10), the installation Two symmetrical rotating connecting rods (9) are rotatably installed inside the groove (10), and the outer sides of the stamping cavity insert (3) and the stamping core insert (4) are provided with connecting slots (11). One end of the rotating connecting rod (9) is clamped inside the connecting slot (11) to limit the position of the stamping cavity insert (3) and the stamping core insert (4), and the other end of the rotating connecting rod (9) is penetrated and fixed with an axle pin. Both ends of the axle pin are rotatably inserted into the fixed mold plate (1) or the movable mold plate (2), and the outer sides of the ends are sleeved with torsion springs.

2. The batch stamping equipment for small-sized workpieces according to claim 1, characterized in that: A pressure block (8) is slidably mounted between the two rotating connecting rods (9); the end of the pressure block (8) in contact with the rotating connecting rod (9) is provided with two symmetrical inclined surfaces; and the end of the rotating connecting rod (9) in contact with the pressure block (8) is provided with a guide surface.

3. The batch stamping equipment for small-sized workpieces according to claim 2 is characterized in that: The inclined surface at the end of the pressure block (8) and the guiding surface at the end of the rotating connecting rod (9) are both inclined at an angle of forty-five degrees.

4. The batch stamping equipment for small-sized workpieces according to claim 3 is characterized in that: The other end of the pressure block (8) is slidably inserted into the fixed mold plate (1) or the movable mold plate (2), and a guide magnet (13) is fixed to the secondary end of the pressure block (8), and a return spring (12) is sleeved on the outer side of the end of the pressure block (8) connected to the guide magnet (13).

5. The batch stamping equipment for small-sized workpieces according to claim 4, characterized in that: An electromagnet (14) is fixed inside the fixed die plate (1) or the movable die plate (2), and the electromagnet (14) is connected to the guide magnet (13) by magnetic attraction. The reset spring (12) is located between the pressure block (8) and the fixed die plate (1) or the movable die plate (2).

Images