Multi-head riveting die structure

Abstract

The utility model discloses a multi-head riveting die structure which is used for riveting parts connected by a plurality of rivets. The upper padding plate and the upper clamping plate are locked on the upper die base through bolts, the lower padding plate and the lower clamping plate are locked on the lower die base through bolts, the discharging screw penetrates through the lower padding plate and the lower clamping plate to be in threaded connection with the material returning plate, the spring installed in a hole of the lower clamping plate penetrates through the lower padding plate to abut against the material returning plate to provide pressure for material returning, and the riveting female die is fixed in the hole of the lower padding plate. And the riveting female die penetrates through the stripper plate and the riveting male die to be fixed in a hole of the upper clamping plate, and the rivet is arranged in the riveting female die. According to the utility model, the simultaneous riveting operation of a plurality of rivets for parts can be realized at the same time, the production efficiency is greatly improved, and in the stamping process, the riveting height of the die is limited by the limiting plate, so that both the die and the parts can be riveted and limited, the situation that the riveting is not in place or over-riveting is avoided, and the production efficiency is improved. Therefore, the quality problems of riveting cracking and the like caused by loose riveting or overpressure can be avoided, and the manufacturing quality of products can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing riveting, in particular to a multi-head riveting die structure. Background Art

[0002] At present, for the riveting process of connecting parts with multiple rivets, hanging riveting machines, vertical or horizontal fixed riveting machines are usually used to rivet the parts. When using a hanging riveting machine, a special riveting production line needs to be configured, equipped with a balancer and a suspension system, etc., and only one rivet can be riveted; when using a vertical or horizontal fixed riveting machine, the riveting machine is fixed on the ground and requires manual loading, and only one rivet can be riveted; and both have no riveting limit, there is a risk of overpressure, which will cause defects such as cracking of parts, and product quality cannot be guaranteed. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the invention object of the utility model is to provide a multi-head riveting die structure, which can achieve riveting multiple rivets to parts connected by multiple rivets at one time.

[0004] To achieve the above-mentioned purpose of the invention, the upper pad and the upper clamping plate of the utility model are locked on the upper die base by bolts, the lower pad and the lower clamping plate are locked on the lower die base by bolts, the unloading screw passes through the lower pad, the lower clamping plate and the stripping plate are threadedly connected, the spring installed in the hole of the lower clamping plate passes through the lower pad and is pressed on the stripping plate to provide pressure for stripping, the riveting die is fixed in the hole of the lower pad and passes through the stripping plate, the riveting punch is fixed in the hole of the upper clamping plate, and the rivet is placed in the riveting die.

[0005] Furthermore, there are multiple riveting punches and riveting concave dies.

[0006] Furthermore, a guide sleeve is installed in each of the holes on the left and right sides of the middle of the upper die base, which slides with the guide column installed at the corresponding position in the hole of the lower die base to guide the die.

[0007] Furthermore, an outer shape positioning device is welded on the upper surface of the stripping plate, and its outer shape structure is adapted to the inner cavity shape of the part, and the part is placed on the stripping plate.

[0008] Furthermore, there are multiple springs, which are symmetrically mounted on the lower clamping plate.

[0009] Furthermore, limit plates are respectively installed on the left and right sides of the upper die base and the lower die base.

[0010] Furthermore, there are multiple unloading screws, and the screw rods of the unloading screws pass through the stepped holes of the lower die base from bottom to top. The unloading screws move upward with the stripping plate, and the stepped holes position the screw heads of the unloading screws.

[0011] Compared with the prior art, the utility model can realize the simultaneous riveting operation of multiple rivets on parts at the same time, greatly improving the production efficiency, and in the stamping process, the riveting height of the mold is limited by the left and right side limit plates, both the mold itself and the parts can realize riveting limit, and the occurrence of insufficient riveting or over-riveting can be eliminated, thereby avoiding quality problems such as riveting cracking caused by loose riveting or over-pressure, and can effectively ensure the manufacturing quality of products. It is particularly suitable for riveting parts connected by multiple rivets. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a simplified diagram of the structure of parts connected by multiple rivets.

[0013] Figure 2 This is a schematic diagram of the structure of the parts placed on the mold.

[0014] Figure 3 for Figure 1 Schematic diagram of CC structure.

[0015] In the figure: 1. upper die seat; 2. guide sleeve; 3. limit plate; 4. guide column; 5. lower die seat; 6. upper pad; 7. upper clamping plate; 8. riveting punch; 9. rivet; 10. stripper plate; 11. lower pad; 12. riveting die; 13. lower clamping plate; 14. unloading screw; 15. spring; 16. parts; 17. shape positioning device; 18. stepped hole. DETAILED DESCRIPTION

[0016] like Figure 1 , Figure 2 , Figure 3 As shown, the upper clamping plate 7 and the upper pad 6 of the utility model are locked on the upper die base 1 by bolts, the lower pad 11 and the lower clamping plate 13 are locked on the lower die base 5 by bolts, and the left and right sides of the upper die base 1 and the lower die base 5 are respectively equipped with limit plates 3, and the holes on the left and right sides in the middle of the upper die base 1 are respectively equipped with a guide sleeve 2, which slides with the guide column 4 installed in the corresponding position of the hole in the lower die base 5 to guide the mold.

[0017] The screw rods of the four unloading screws 14 pass through the stepped holes 18 of the lower die base 5 from bottom to top, pass through the lower pad 11, the lower clamping plate 13 and are threadedly connected with the stripping plate 10. During the riveting process, the unloading screws 14 move up and down with the stripping plate 10, playing a role in guiding and limiting the material stripping. When the unloading screws 14 move upward with the stripping plate 10, the stepped holes 18 position the screw heads of the unloading screws 14; four springs 15 installed in the holes of the lower clamping plate 13 pass through the lower pad 11 and press on the stripping plate 10, providing pressure for material stripping and can play a role in supporting the part 16; the riveting die 12 is fixed in the hole of the lower pad 11 and passes through the stripping plate 10, and the riveting punch 8 is fixed in the hole of the upper clamping plate 7. According to the riveting needs of the part 16, the riveting punch 8 and the riveting die 12 are configured in multiple ways; the rivet 9 is placed in the riveting die 12.

[0018] The outer shape positioning device 17 is fixed to the stripping plate 10 by arc welding, and its outer shape structure is adapted to the inner cavity shape of the part 16 , and the part 16 is placed on the stripping plate 10 .

[0019] When riveting a part 16 connected by multiple rivets, the upper die seat 1 drives the upper pad 6 and the upper clamping plate 7 together with the riveting punch 8 to move downward, and the upper clamping plate 7 begins to contact the stripping plate 10. When the upper clamping plate 7 presses the part 16, the shape positioning device 17 positions the part 16, and the stripping plate 10 continues to move downward. When the limit plates 3 on the left and right sides of the upper die seat 1 and the lower die seat 5 are completely fitted, the riveting operation of multiple rivets of the part 16 can be completed at the same time. After the riveting operation is completed, the upper die seat 1 moves upward, and the compressed spring 15 pushes the stripping plate 10 upward. Under the joint action of the elastic force of the spring 15 and the stripping plate 10, the part 16 is lifted up to facilitate the operator to take the part.

Claims

1. A multi-head riveting die structure, characterized in that: The upper pad (6) and the upper clamping plate (7) are bolted to the upper die base (1), the lower pad (11) and the lower clamping plate (13) are bolted to the lower die base (5), the unloading screw (14) passes through the lower pad (11), the lower clamping plate (13) and the stripping plate (10) are threadedly connected, the spring (15) installed in the hole of the lower clamping plate (13) passes through the lower pad (11) and presses on the stripping plate (10) to provide pressure for stripping, the riveting die (12) is fixed in the hole of the lower pad (11) and passes through the stripping plate (10), the riveting punch (8) is fixed in the hole of the upper clamping plate (7), and the rivet (9) is placed in the riveting die (12).

2. A multi-head riveting die structure according to claim 1, characterized in that: There are multiple riveting convex dies (8) and multiple riveting concave dies (12).

3. The multi-head riveting die structure according to claim 1, characterized in that: A guide sleeve (2) is installed in each of the holes on the left and right sides of the middle of the upper die seat (1), and is slidably matched with a guide column (4) installed at a corresponding position in the hole of the lower die seat (5) to guide the die.

4. The multi-head riveting die structure according to claim 1, characterized in that: An outer shape positioning device (17) is welded on the upper surface of the stripping plate (10), and its outer shape structure is adapted to the inner cavity shape of the part (16), and the part (16) is placed on the stripping plate (10).

5. The multi-head riveting die structure according to claim 1, characterized in that: The springs (15) are multiple and symmetrically mounted on the lower clamping plate (13).

6. The multi-head riveting die structure according to claim 1, characterized in that: Limiting plates (3) are respectively installed on the left and right sides of the upper die base (1) and the lower die base (5).

7. The multi-head riveting die structure according to claim 1, characterized in that: There are a plurality of unloading screws (14), and the screw rods of the unloading screws (14) pass through the stepped holes (18) of the lower die base (5) from bottom to top. The unloading screws (14) move upward along with the stripping plate (10), and the stepped holes (18) position the screw heads of the unloading screws (14).

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