A composite stamping device for flat washers

Abstract

This utility model discloses a composite stamping device for flat washers, including a base; a composite bottom mold fixed on the base; a composite top mold located above the composite bottom mold, which works with the composite bottom mold to achieve composite stamping of the flat washer; a connecting plate fixed to the rear end of the composite top mold; a connecting rod hinged at the top to the connecting plate; a deflection plate movably mounted on the base at the rear end and hinged to the bottom of the connecting rod; a pulling rod hinged to the bottom of the deflection plate; a set of fixed slide rails fixed to the rear end of the composite bottom mold; a sliding seat slidably mounted on the set of fixed slide rails; a lifting plate mounted at the front end of the sliding seat and movably inserted into the composite bottom mold for limiting the material plate; a set of tension springs, one end of which is connected to the composite bottom mold and the other end of which is connected to the sliding seat; an insert plate fixed to the rear end of the composite top mold; and a slot on the sliding seat. The beneficial effects of this utility model are that it realizes automatic material pulling of sheet metal, replacing manual hand feeding, and the feeding amount is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, specifically to a composite stamping device for flat washers. Background Technology

[0002] Flat washers are typically thin components of various shapes used to reduce friction, prevent leaks, provide isolation, prevent loosening, or distribute pressure. Flat washers are primarily used to reduce pressure. When the axial force at the connection point is large during tightening, using a higher-strength material or increasing its hardness can prevent the washer from being compressed into a disc shape.

[0003] The composite stamping process for flat washers is a highly efficient stamping technology that completes multiple processes in a single stamping operation, such as blanking, punching, cutting, and shaping, thereby improving production efficiency and product quality. Currently, the small-scale composite stamping equipment used in the stamping process of flat washers often requires manual feeding of the material plate, which is cumbersome and prone to material waste due to inaccurate manual feeding. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a composite stamping device for flat washers, thereby solving the problem of automatic material feeding in composite stamping of flat washers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A composite stamping device for flat washers, comprising: Base; Composite bottom mold, fixed on the base; The composite top die is located above the composite bottom die and works with the composite bottom die to achieve composite stamping of flat washers; The connecting plate is fixed to the rear end of the composite top mold; The connecting rod is hinged at the top to the connecting plate; The deflection plate is movably mounted on the base at the rear end and is hinged to the bottom of the connecting rod; The pull rod is hinged to the bottom of the deflection plate; The fixed slide rails, in a set, are fixed to the rear end of the composite bottom mold; The sliding seat is slidably mounted on a set of fixed slide rails; The lifting plate is installed at the front end of the sliding seat and is movably inserted into the composite bottom mold to limit the position of the plate. The tension springs are in a set, with one end connected to the composite bottom mold and the other end connected to the sliding seat respectively; Insert plate, fixed to the rear end of the composite top mold; The slot is located on the sliding base.

[0006] Furthermore, the bottom of the insert plate is chamfered, and a guide wheel is movably installed at the rear end of the slot to facilitate the insertion of the insert plate into the slot.

[0007] Furthermore, a driving device is connected to the upper end of the composite top die to drive the composite top die to move up and down, thereby realizing the composite stamping forming of the flat washer.

[0008] Furthermore, the connecting rod has a strip-shaped hole, and the top of the deflection plate is slidably installed in the strip-shaped hole via a circular slider, which facilitates the connecting rod to drive the deflection plate to deflect.

[0009] Furthermore, a limiting pin corresponding to the rear end of the pull rod is fixedly inserted into the deflection plate, and the limiting pin can be used to limit the position of the pull rod.

[0010] Furthermore, a stainless steel pulling head is installed at the front end of the pulling rod. The stainless steel pulling head adopts a blade structure, which facilitates pulling and also improves service life.

[0011] This utility model provides a composite stamping device for flat washers, which has the following advantages: the composite top die and the composite bottom die complete the composite stamping and forming of the flat washer, and by driving the pull rod, the front end of the pull rod adopts a cutting knife structure, and with the material lifting plate push design, the automatic material pulling of the sheet is realized, replacing the manual hand-held material feeding, and the feeding amount is more accurate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a composite stamping device for a flat washer according to the present invention; Figure 2 This is a rear view of the composite stamping device for a flat washer according to the present invention. Figure 3 This is a top view of the sliding seat described in this utility model; Figure 4 This is a schematic diagram of the insert plate described in this utility model; Figure 5 This is a schematic diagram of the automatic material pulling mechanism of the pull rod described in this utility model; In the diagram: 1. Base; 2. Composite bottom mold; 3. Composite top mold; 4. Connecting plate; 5. Connecting rod; 6. Deflection plate; 7. Pull rod; 8. Fixed slide rail; 9. Sliding seat; 10. Lifting plate; 11. Tension spring; 12. Insert plate; 13. Slot; 14. Chamfer; 15. Guide wheel; 16. Strip hole; 17. Limit pin; 18. Stainless steel pull head. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] Please see Figures 1 to 5 As shown in the figure, this application provides a composite stamping device for flat washers, including a base 1; a composite bottom mold 2, fixed on the base 1; a composite top mold 3, located above the composite bottom mold 2, which cooperates with the composite bottom mold 2 to achieve composite stamping of flat washers; a connecting plate 4, fixed to the rear end of the composite top mold 3; a connecting rod 5, with its top hinged to the connecting plate 4; a deflection plate 6, with its rear end movably mounted on the base 1 and hinged to the bottom of the connecting rod 5; a pulling rod 7, hinged to the bottom of the deflection plate 6; a set of fixed slide rails 8, fixed to the rear end of the composite bottom mold 2; a sliding seat 9, slidably mounted on the set of fixed slide rails 8; a lifting plate 10, mounted on the front end of the sliding seat 9 and movably inserted into the composite bottom mold 2, used to push the material plate; a set of tension springs 11, each with one end connected to the composite bottom mold 2 and the other end connected to the sliding seat 8; an insert plate 12, fixed to the rear end of the composite top mold 3; and a slot 13, opened on the sliding seat 9.

[0015] In this embodiment, the composite bottom mold 2 has an inner cavity for supporting the material plate. During use, the operator first inserts the material plate into the inner cavity of the composite bottom mold 2. The composite top mold 3, located above the composite bottom mold 2, works in conjunction with the composite bottom mold 2 to achieve the composite stamping and blanking of the flat washer. This is prior art and is not considered an inventive point of this application. The initial position of the pull rod 7 is as follows... Figure 1 As shown, located at the left end of the circular hole after the material plate is stamped, during automatic material pulling, the composite top die 3 moves downward, driving the connecting rod 5 through the connecting plate 4, and causing the deflection plate 6 to deflect counterclockwise. The deflection plate 6 drives the pulling rod 7 to move to the right into the next circular hole after stamping. The front end of the pulling rod 7 adopts a knife structure to facilitate pulling. At the same time, when the composite top die 3 moves downward, the rear insert plate 12 is inserted into the slot 13 on the sliding seat 9, and the sliding seat 9 moves to the rear end. A set of tension springs 11 is in a stretched state. When the composite top die 3 moves upward, the insert plate 12 disengages from the slot 13, and the set of tension springs 11 drives the sliding seat 9 to reset. The lifting plate 10 at the front end of the sliding seat 9 is inserted into the composite bottom die 2, which can realize side pushing. At the same time, in conjunction with the pulling rod 7, the material plate is automatically pulled to the next station, replacing manual feeding of the material plate, and the feeding amount is more accurate.

[0016] In some embodiments, the bottom of the insert plate 12 is provided with a chamfer 14, and a guide wheel 15 is movably installed at the rear end of the slot 13 to facilitate the insertion of the insert plate 12 into the slot 13.

[0017] In some embodiments, a driving device is connected to the upper end of the composite top die 3 to drive the composite top die 3 to move up and down, thereby realizing the composite stamping forming of the flat washer.

[0018] In some embodiments, the connecting rod 5 has a strip hole 16, and the top of the deflection plate 6 is slidably installed in the strip hole 16 by a circular slider, so that the connecting rod 7 can drive the deflection plate 6 to deflect.

[0019] In some embodiments, a limiting pin 17 corresponding to the rear end of the pull rod 7 is fixedly inserted into the deflection plate 6. The limiting pin 17 can be used to limit the position of the pull rod 7.

[0020] In some embodiments, a stainless steel pulling head 18 is installed at the front end of the pulling rod 7. The stainless steel pulling head 18 adopts a blade structure, which facilitates pulling and improves service life.

[0021] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A composite stamping device for flat washers, characterized in that: include Base (1); The composite bottom mold (2) is fixed on the base (1); The composite top mold (3) is located above the composite bottom mold (2) and works with the composite bottom mold (2) to achieve composite stamping of flat washers; The connecting plate (4) is fixed to the rear end of the composite top mold (3); The connecting rod (5) is hinged at the top to the connecting plate (4); The deflection plate (6) is movably mounted on the base (1) at its rear end and is hinged to the bottom of the connecting rod (5); The pull rod (7) is hinged to the bottom of the deflection plate (6); Fixed slide rails (8) are a set and fixed to the rear end of the composite bottom mold (2); The sliding seat (9) is slidably mounted on a set of fixed slide rails (8); The lifting plate (10) is installed at the front end of the sliding seat (9) and is movably inserted into the composite bottom mold (2) for pushing the material plate; Tension springs (11) are a set, with one end connected to the composite bottom mold (2) and the other end connected to the sliding seat (9); Insert plate (12) is fixed to the rear end of the composite top mold (3); The slot (13) is located on the sliding seat (9).

2. The composite stamping device for flat washers according to claim 1, characterized in that, The bottom of the insert plate (12) is chamfered (14), and a guide wheel (15) is movably installed at the rear end of the slot (13).

3. The composite stamping device for flat washers according to claim 1, characterized in that, The upper end of the composite top mold (3) is connected to a driving device for driving the composite top mold (3) to move up and down.

4. The composite stamping device for flat washers according to claim 1, characterized in that, The connecting rod (5) has a strip hole (16), and the top of the deflection plate (6) is slidably installed in the strip hole (16) by a circular slider.

5. The composite stamping device for flat washers according to claim 4, characterized in that, The deflection plate (6) is fixedly fitted with a limiting pin (17) corresponding to the rear end of the pull rod (7).

6. The composite stamping device for flat washers according to claim 5, characterized in that, The front end of the pull rod (7) is equipped with a stainless steel pull head (18).

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