Stamping device for pressing and riveting high boss

Abstract

The utility model relates to the technical field of stamping, and discloses a stamping device for pressing and riveting a high boss, which comprises a base and a vertically sliding stamping plate. A stamping groove is formed in the base, a workpiece is arranged in the stamping groove, a stamping block is arranged at the bottom of the stamping plate, the stamping block and the stamping groove are matched with each other to conduct stamping operation on the workpiece, four rivet pressing holes are formed in the base, four rivet pressing blocks are installed at the bottom of the stamping plate, and the rivet pressing blocks correspond to the rivet pressing holes. According to the utility model, the stamping and press riveting processes are synchronously carried out, so that the waiting time of traditional step-by-step processing is reduced, the processing cycle of a single product is shortened, synchronous press riveting can be carried out by utilizing the ductility of materials in the stamping plastic deformation process, the riveting strength is improved, and the problem of cracks or stress concentration possibly generated by traditional cold riveting is avoided; and the integrally formed high boss can be directly used as a rivet, so that the process of additionally mounting a fastener is omitted, and the product assembly process is further simplified.

Description

Technical Field

[0001] This utility model belongs to the field of stamping technology, specifically, it relates to a stamping device for press riveting high bosses. Background Technology

[0002] In the field of mechanical manufacturing, high-bore structural parts are widely used in aerospace, automotive parts, and other applications requiring high-strength connections. In traditional processes, the forming of high bores typically employs a step-by-step processing method of "first stamping and then riveting separately."

[0003] However, in actual use, it has been found that the cold riveting process is carried out after the workpiece has been completely cooled. At this time, the material is relatively rigid, and the boss is prone to deformation or cracking due to stress concentration during the riveting process. In addition, multiple clamping can easily cause positioning deviations, affecting the assembly accuracy of the high boss with other structures. Traditional processes require separate stamping and riveting equipment, which occupy a large area and increase material costs and assembly steps due to the additional use of fasteners such as rivets.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A stamping device for press-fitting high bosses includes a base and a vertically sliding stamping plate.

[0007] The base is provided with a stamping groove, and a workpiece is placed in the stamping groove. A stamping block is provided at the bottom of the stamping plate. The stamping block and the stamping groove cooperate with each other to perform a stamping operation on the workpiece.

[0008] The base has four riveting holes, and the bottom of the stamping plate is equipped with four riveting blocks, which correspond to the riveting holes. The bottom shape of each riveting block is different. The stamping plate is equipped with a drive motor, which is used to drive the riveting blocks to change the riveting position.

[0009] The base is horizontally slidably equipped with a clamping plate, which covers the workpiece and is used to position the workpiece.

[0010] In a preferred embodiment of this utility model, a hole is installed in the center of the base, and a hydraulic push rod is detachably installed inside the hole by bolts. The output end of the hydraulic push rod is connected to the center of the stamping plate.

[0011] In a preferred embodiment of this utility model, a sliding plate is installed on the housing of the drive motor, a limit rod is slidably arranged on the sliding plate, a base plate is installed at the bottom of the limit rod, and the base plate is L-shaped. The base plate is connected to the side wall of the base, and a triangular reinforcing rib is installed on the base plate.

[0012] In a preferred embodiment of this utility model, a limiting plate for preventing disengagement is installed on the top of the limiting rod, and a compression spring is sleeved on the limiting rod. The bottom of the compression spring is engaged with the base plate, and the top of the compression spring is engaged with the slide plate.

[0013] In a preferred embodiment of this utility model, a slide is installed on the card plate, a positioning rod is movably disposed through the slide, positioning seats are installed at both ends of the positioning rod, and the positioning seats are installed on the side wall of the base.

[0014] In a preferred embodiment of this utility model, a handle is installed on the card plate. The handle is U-shaped. A return spring is sleeved on the positioning rod. One end of the return spring is engaged with the slide block, and the other end is engaged with the positioning seat.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention performs stamping and riveting processes simultaneously, which not only reduces the waiting time of traditional step-by-step processing and shortens the processing cycle of a single product, but also utilizes the material's ductility to simultaneously rivet during the stamping plastic deformation process, improving the riveting strength while avoiding the cracks or stress concentration problems that may occur with traditional cold riveting. Furthermore, the integrated high boss can be used directly as a rivet, eliminating the need for additional fastener installation and further simplifying the product assembly process.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a three-dimensional view of the present invention;

[0020] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a bottom view of the present invention;

[0022] Figure 4 This is a flowchart illustrating the workpiece assembly process of this utility model.

[0023] In the diagram: 1. Base; 2. Workpiece; 3. Stamping groove; 4. Riveting hole; 5. Stamping plate; 6. Riveting block; 7. Hydraulic push rod; 8. Drive motor; 9. Slide plate; 10. Limiting rod; 11. Limiting plate; 12. Base plate; 13. Compression spring; 14. Reinforcing rib; 15. Clamping plate; 16. Handle; 17. Slide; 18. Positioning rod; 19. Positioning seat; 20. Return spring; 21. Stamping block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0025] like Figures 1 to 4 As shown, a stamping device for press-fitting high bosses includes a base 1 and a vertically sliding stamping plate 5.

[0026] The base 1 has a stamping groove 3, and the stamping groove 3 is provided with a workpiece 2. The bottom of the stamping plate 5 is provided with a stamping block 21. The stamping block 21 and the stamping groove 3 cooperate with each other to perform stamping operation on the workpiece. Through precise structural cooperation, the dimensional accuracy of the initial forming of the workpiece is ensured and stamping deviation is reduced.

[0027] The base 1 has four riveting holes 4, and the bottom of the stamping plate 5 has four riveting blocks 6, which correspond to the riveting holes 4. The bottom shape of each riveting block 6 is different. The stamping plate 5 is equipped with a drive motor 8, which is used to drive the riveting blocks 6 to change the riveting position. Through the combination of multi-shaped riveting blocks and the switching of positions, multi-level riveting processes can be completed on the same equipment, avoiding positioning errors caused by multiple clamping of workpieces, and significantly improving the forming efficiency and complexity of the high boss structure.

[0028] A horizontally sliding clamping plate 15 is mounted on the base 1, covering the workpiece 2 for positioning. This horizontal positioning structure effectively limits the displacement of the workpiece during the stamping process, improves processing stability, and reduces the scrap rate caused by workpiece misalignment.

[0029] like Figures 1 to 4 As shown, in a specific embodiment, a hole is installed at the center of the base 1, and a hydraulic push rod 7 is detachably installed inside the hole via bolts. The output end of the hydraulic push rod 7 is connected to the center of the stamping plate 5. The hydraulic drive provides a stable and adjustable driving force, which facilitates precise control of the stamping pressure according to the workpiece material and thickness, reduces equipment wear, and improves processing adaptability.

[0030] like Figures 1 to 4As shown, a sliding plate 9 is further mounted on the housing of the drive motor 8. A limit rod 10 is slidably mounted on the sliding plate 9. A base plate 12 is mounted on the bottom of the limit rod 10, and the base plate 12 is L-shaped. The base plate 12 is connected to the side wall of the base 1, and a triangular reinforcing rib 14 is mounted on the base plate 12. The combination of the L-shaped base plate and the triangular reinforcing rib enhances the structural rigidity and prevents the drive motor from shifting its position due to vibration when rotating to switch the riveting block position, thus ensuring the accuracy of the riveting position switching.

[0031] like Figures 1 to 4 As shown, furthermore, a limiting plate 11 for preventing disengagement is installed on the top of the limiting rod 10. A compression spring 13 is sleeved on the limiting rod 10. The bottom of the compression spring 13 is engaged with the base plate 12, and the top of the compression spring 13 is engaged with the slide plate 9. The compression spring 13 serves a positioning purpose, ensuring that the entire stamping plate 5 will not slide downwards when the hydraulic push rod 7 is disassembled.

[0032] like Figures 1 to 4 As shown, a slide block 17 is further mounted on the clamping plate 15, and a positioning rod 18 is movably connected through the slide block 17. Positioning seats 19 are mounted at both ends of the positioning rod 18, and the positioning seats 19 are installed on the side wall of the base 1. The sliding engagement between the positioning rod 18 and the slide block 17 makes the clamping plate positioning process smoother, avoids workpiece surface damage caused by rigid contact, and improves positioning accuracy and workpiece surface quality.

[0033] like Figures 1 to 4 As shown, a handle 16 is further installed on the clamping plate 15. The handle 16 is U-shaped, and a return spring 20 is sleeved on the positioning rod 18. One end of the return spring 20 is engaged with the slide 17, and the other end is engaged with the positioning seat 19. The U-shaped handle facilitates quick manual adjustment of the position of the clamping plate 15, and the return spring continuously provides a stable thrust to ensure that the workpiece is always reliably fixed in the horizontal direction, simplifying the clamping process and improving operational convenience.

[0034] The operating principle of a stamping device for press-fitting high bosses is as follows:

[0035] Before workpiece 2 is placed in the designated position on base 1, return spring 20 is already in a compressed state. After removing hydraulic push rod 7 from the hole and placing workpiece 2, hydraulic push rod 7 is reinstalled into the center hole of base 1 using bolts, so that the output end of hydraulic push rod 7 is connected to the center of stamping plate 5. At this time, under the continuous compression force of return spring 20, the clamping plate 15 is pushed to slide horizontally along base 1. The clamping plate 15 slides on positioning rod 18 via slide block 17 until the clamping plate 15 covers and accurately clamps and positions workpiece 2, thus fixing workpiece 2 horizontally and preventing displacement during stamping. Furthermore, during positioning, return spring 20 remains compressed, continuously providing stable thrust to assist clamping plate 15 in adhering to workpiece 2.

[0036] Once ready, the hydraulic push rod 7 is activated. The hydraulic push rod 7 outputs power to push the stamping plate 5 downwards in a vertical direction. The stamping block 21, installed at the bottom of the stamping plate 5, moves downwards accordingly. When the stamping block 21 contacts the workpiece 2 in the stamping groove 3 of the base 1, a stamping operation is performed on the workpiece 2. As the stamping plate 5 continues to move downwards, the stamping block 21 gradually applies pressure to the workpiece 2, causing the workpiece 2 to initially take shape. This process is the fundamental operation of the entire machining process.

[0037] When the stamping block 21 stamps the workpiece 2, the drive motor 8 is started. The drive motor 8 drives the stamping plate 5 and the riveting block 6 to rotate. According to the riveting requirements of the workpiece 2, the first riveting block 6 with a suitable shape is rotated to the riveting position above the corresponding riveting hole 4. When the stamping plate 5 slides down to a certain position so that the riveting block 6 can contact the workpiece 2, the hydraulic push rod 7 pushes the stamping plate 5 to continue sliding down so that the riveting block 6 performs the first riveting on the workpiece 2.

[0038] After the first riveting is completed, the hydraulic push rod 7 drives the stamping plate 5 to retract a short distance upwards, and the drive motor 8 starts again, driving the riveting block 6 to rotate, changing the next riveting block 6 of suitable shape to the riveting position above the corresponding riveting hole 4. Subsequently, the hydraulic push rod 7 pushes the stamping plate 5 downwards again, and while the stamping block 21 continues to stamp the workpiece 2, the new riveting block 6 performs a second riveting on the workpiece 2. This cycle is repeated multiple times according to the final specified shape of the workpiece 2. During the continuous stamping process, the workpiece 2 is gradually riveted by riveting blocks 6 of different shapes until the workpiece 2 forms a high boss structure that meets the requirements.

[0039] The above embodiments are merely preferred embodiments of the present utility model and are only used to explain the present utility model, not to limit the present utility model. Any changes, substitutions, combinations, simplifications, modifications, etc., made by those skilled in the art without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A stamping device for press-fitting high bosses, comprising a base (1) and a vertically sliding stamping plate (5), characterized in that: The base (1) is provided with a stamping groove (3), and the stamping groove (3) is provided with a workpiece (2). The bottom of the stamping plate (5) is provided with a stamping block (21). The stamping block (21) and the stamping groove (3) cooperate with each other to perform stamping operation on the workpiece. The base (1) has four riveting holes (4), and the bottom of the stamping plate (5) is equipped with four riveting blocks (6), and the riveting blocks (6) correspond to the riveting holes (4). The bottom shape of each riveting block (6) is different. The stamping plate (5) is equipped with a drive motor (8), which is used to drive the riveting blocks (6) to change the riveting position. The base (1) is horizontally slidably provided with a clamping plate (15), which covers the workpiece (2) and is used to position the workpiece (2).

2. The press device for pressing a high boss according to claim 1, wherein The base (1) has a hole in the center, and a hydraulic push rod (7) is detachably installed inside the hole by bolts. The output end of the hydraulic push rod (7) is connected to the center of the stamping plate (5).

3. The apparatus according to claim 1, wherein A sliding plate (9) is installed on the housing of the drive motor (8). A limit rod (10) is slidably arranged on the sliding plate (9). A base plate (12) is installed at the bottom of the limit rod (10). The base plate (12) is L-shaped. The base plate (12) is connected to the side wall of the base (1). A triangular reinforcing rib (14) is installed on the base plate (12).

4. The apparatus according to claim 3, wherein The top of the limiting rod (10) is equipped with a limiting plate (11) to prevent disengagement. A compression spring (13) is sleeved on the limiting rod (10). The bottom of the compression spring (13) is engaged with the base plate (12), and the top of the compression spring (13) is engaged with the slide plate (9).

5. The apparatus according to claim 1, wherein A slide (17) is installed on the card plate (15), and a positioning rod (18) is movably connected through the slide (17). Positioning seats (19) are installed at both ends of the positioning rod (18), and the positioning seats (19) are installed on the side wall of the base (1).

6. The apparatus according to claim 5, wherein A handle (16) is installed on the plate (15). The handle (16) is U-shaped. A reset spring (20) is sleeved on the positioning rod (18). One end of the reset spring (20) is engaged with the slide (17), and the other end is engaged with the positioning seat (19).

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