A press riveting die with high stability

Abstract

The utility model relates to a press -in die technical field discloses a high stability's press -in die, including upper die, the lower end of upper die is provided with lower die, the inside slide of lower die is provided with mounting panel, the both ends of mounting panel upper end are all provided with first sliding slot, two first sliding slot outside all are slidably arranged with first sliding block, one of two first sliding blocks rear end is rotatably arranged with first screw rod, another one of two first sliding blocks front end is fixedly provided with first guide rod, the both sides of mounting panel are all provided with second sliding slot, two second sliding slot inside all are slidably arranged with second sliding block, one side of one of two second sliding blocks is rotatably arranged with second screw rod. In the utility model, through first screw rod and first guide rod, second screw rod and second guide rod, cooperate with the linkage of sliding block and sliding, ensure the position accuracy of mounting panel, and then effectively improve the stability and accuracy in the process of press -in.

Description

Technical Field

[0001] This utility model relates to the field of riveting mold technology, and in particular to a riveting mold with high stability. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for thin metal sheets, including shearing, bending, welding, riveting, splicing, and forming. Its significant characteristic is that the thickness of the same part is consistent. Products processed by sheet metal processing are called sheet metal parts. The sheet metal parts referred to in different industries are generally different, and are often used as a term in assembly. In the application scenario of riveting dies, sheet metal parts are the core processing object of the riveting process.

[0003] The existing patent (publication number: CN222985637U) discloses "This utility model discloses a multi-hole sheet metal part riveting mold, which relates to the field of riveting molds. It includes an upper mold plate and a lower mold plate. The multi-hole sheet metal part riveting mold proposed by this utility model has a sliding connection between the bottom end of the upper mold plate and the lower mold plate; a micro-adjustment component, which has eight sets symmetrically arranged around the upper mold plate to adjust the limiting protrusion of the upper mold plate; and an adjustment structure, which is fixed on one side of the forming plate of the lower mold plate and plays the role of adjusting the position of the forming plate in the lower mold plate. When in use, this riveting mold can use the micro-adjustment component to adjust the offset angle of the part at the connection between the upper mold plate and the lower mold plate, ensuring that the part is accurately positioned in the mold. This allows the upper mold plate and the lower mold plate to be smoothly and accurately connected during the mold closing process, improving the positioning accuracy. The adjustment structure can also be used to adjust the position of the forming plate to ensure that there is no offset during the riveting process."

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art: The riveting mold drives the rotating shaft and screw to rotate by turning the handle. The screw pushes the sliding plate and the forming plate to slide along the groove of the lower mold plate body. The meshing transmission of the first helical gear and the second helical gear allows the handle to synchronously drive the transmission shaft and another set of helical gears and screw, so that the two sets of sliding plates can synchronously push the forming plate to move. The fine control of the adjustment distance is achieved by relying on the meshing characteristics of the gears. However, it only supports position adjustment in one direction and cannot be flexibly positioned in two directions at the same time. This results in poor adaptability when dealing with sheet metal parts with multiple holes, asymmetry, or variable sizes, and it is difficult to meet the high-precision, multi-dimensional positioning requirements of complex workpieces.

[0005] Therefore, those skilled in the art have provided a highly stable riveting die to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly stable riveting mold. Through the linkage of a first lead screw and a first guide rod, a second lead screw and a second guide rod, and a slider and a sliding mechanism, the installation plate is positioned accurately, thereby effectively improving the stability and accuracy of the riveting process.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A highly stable riveting die includes an upper die, a lower die at the lower end of the upper die, and a mounting plate slidably disposed inside the lower die. The mounting plate has first sliding grooves at both its front and rear ends, and first sliders slidably disposed outside each of the two first sliding grooves. A first lead screw is rotatably disposed at the rear end of one of the two first sliders, and a first guide rod is fixedly disposed at the front end of the other of the two first sliders. Second sliding grooves are formed on both sides of the mounting plate, and second sliders slidably disposed inside each of the two second sliding grooves. A second lead screw is rotatably disposed on one side of one of the two second sliders, and a second guide rod is fixedly disposed on the side of the other of the two second sliders away from the second lead screw.

[0009] Both sides of the upper end of the mounting plate are fixedly provided with fixing plates. One of the two fixing plates is threadedly connected to a screw on the side closer to the second lead screw. An extrusion plate is rotatably provided on the side of the screw away from the second lead screw. A forming plate is provided at the upper end of the mounting plate.

[0010] Furthermore, the screw is externally threaded to the rear end of the lower mold, and the first guide rod is externally slidably disposed at the front end of the lower mold.

[0011] Furthermore, the second lead screw is externally threaded onto one side of the lower mold, and the second guide rod is externally slidably disposed on the other side of the lower mold.

[0012] Furthermore, one side of the forming plate is disposed on one of the two fixing plates near the second guide rod, and the other side of the forming plate is disposed on the extrusion plate.

[0013] Furthermore, a second connecting rod is fixedly provided on the side of the two second sliders near the second lead screw, and a first connecting rod is fixedly provided on the side of one of the two first sliders near the first lead screw.

[0014] Furthermore, the second connecting rod is externally slidably disposed on one side inside the lower mold, and the first connecting rod is externally slidably disposed at the rear end inside the lower mold. Both the first connecting rod and the second connecting rod are provided with scale lines on their exteriors.

[0015] Furthermore, the lower end of the extrusion plate is slidably mounted on the upper end of the mounting plate, and multiple fixing rods are fixedly mounted on the upper end of the lower mold.

[0016] This utility model has the following beneficial effects:

[0017] This utility model proposes a highly stable riveting mold. When adjusting the front and rear positions of the forming plate, rotating the first lead screw drives the two first sliders to move, allowing the mounting plate to slide back and forth inside the lower mold. The scale lines on the outside of the first connecting rod can adjust the distance. The first guide rod prevents the mounting plate from tilting during adjustment. The push rod provides guidance. When adjusting the side position of the forming plate, rotating the second lead screw pushes the second slider to slide inside the second groove of the mounting plate, allowing the mounting plate to slide inside the lower mold. The scale lines on the outside of the second connecting rod can be used to visually read the adjustment distance until the preset riveting position is reached. The second guide rod provides guidance and anti-tilting function, ensuring the straightness of the adjustment, thereby completing all-round position adjustment. It has high adaptability, thus ensuring the accurate positioning of the forming plate and sheet metal parts and improving stability during use. Attached Figure Description

[0018] Figure 1 This is an isometric schematic diagram of the entire utility model;

[0019] Figure 2 This is an isometric schematic diagram of the lower mold of this utility model;

[0020] Figure 3 This is a top-section isometric view of the present invention near the lower mold;

[0021] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the diagram;

[0022] Figure 5 This is a top-section isometric view of the present invention near the mounting plate.

[0023] Legend:

[0024] 1. Upper mold; 2. Lower mold; 3. First guide rod; 4. Fixing rod; 5. Second lead screw; 6. Second connecting rod; 7. Second guide rod; 8. Forming plate; 9. First connecting rod; 10. First lead screw; 11. Mounting plate; 12. First slider; 13. First slide groove; 14. Second slide groove; 15. Second slider; 16. Fixing plate; 17. Extrusion plate; 18. Screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-5 One embodiment provided by this utility model:

[0027] A highly stable riveting die includes an upper die 1, a lower die 2 at the lower end of the upper die 1, a mounting plate 11 slidably disposed inside the lower die 2, a first sliding groove 13 at both the front and rear ends of the upper end of the mounting plate 11, a first slider 12 slidably disposed outside the two first sliding grooves 13, a first lead screw 10 rotatably disposed at the rear end of one of the two first sliders 12, a first guide rod 3 fixedly disposed at the front end of the other of the two first sliders 12, a second sliding groove 14 on both sides of the mounting plate 11, a second slider 15 slidably disposed inside the two second sliding grooves 14, a second lead screw 5 rotatably disposed on one side of one of the two second sliders 15, and a second guide rod 7 fixedly disposed on the side of the other of the two second sliders 15 away from the second lead screw 5;

[0028] Fixing plates 16 are fixedly installed on both sides of the upper end of the mounting plate 11. One of the fixing plates 16 is threadedly connected to a screw 18 on the side closer to the second screw 5. An extrusion plate 17 is rotatably installed on the side of the screw 18 away from the second screw 5. A forming plate 8 is installed on the upper end of the mounting plate 11.

[0029] The screw 18 is externally threaded to the rear end of the lower mold 2. The first guide rod 3 is externally slidably disposed at the front end of the lower mold 2. The second lead screw 5 is externally threaded to one side of the lower mold 2. The second guide rod 7 is externally slidably disposed at the other side of the lower mold 2. One side of the forming plate 8 is disposed on one of the two fixed plates 16 near the second guide rod 7. The other side of the forming plate 8 is disposed on one side of the extrusion plate 17. The two second sliders 15 are fixedly disposed on the side near the second lead screw 5 with a second connecting rod 6. One of the two first sliders 12 is fixedly disposed on the side near the first lead screw 10 with a first connecting rod 9. The second connecting rod 6 is externally slidably disposed on one side of the lower mold 2. The first connecting rod 9 is externally slidably disposed at the rear end of the lower mold 2. Both the first connecting rod 9 and the second connecting rod 6 are provided with scale lines. The lower end of the extrusion plate 17 is slidably disposed on the upper end of the mounting plate 11. Multiple fixed rods 4 are fixedly disposed on the upper end of the lower mold 2.

[0030] Specifically, when fixing the forming plate 8, first place the forming plate 8 stably in the preset area on the upper end of the mounting plate 11 to lay the foundation for subsequent positioning and adjustment. Then, the operator rotates the screw 18 on the fixing plate 16. Since the screw 18 is threadedly connected to the fixing plate 16, the screw 18 will slide axially along the threaded hole of the fixing plate 16 during the rotation, thereby pushing the extrusion plate 17, which is rotatably connected to it, to move towards the forming plate 8. The lower end of the extrusion plate 17 slides and fits against the upper end of the mounting plate 11 to ensure stable movement trajectory. As the extrusion plate 17 continues to advance, it will push the forming plate 8 to slide slowly on the mounting plate 11 until the other side of the forming plate 8 is in close contact with another fixing plate 16 on the mounting plate 11. At this time, continue to rotate the screw 18, and the extrusion plate 17 will form a clamping force on the forming plate 8. By applying pressure through the extrusion plate 17, the other side is limited by the fixing plate 16, and finally the forming plate 8 is fixed on the upper end of the mounting plate 11 to prevent the forming plate 8 from shifting during subsequent adjustment or riveting.

[0031] When the front and rear positions of the forming plate 8 need to be adjusted to meet the requirements of sheet metal riveting, the operator rotates the first lead screw 10 at the rear end of the lower mold 2. Since the first lead screw 10 is threadedly connected to one of the first sliders 12, and both first sliders 12 are fitted into the first groove 13 of the mounting plate 11, the gap between the groove and the slider is extremely small, ensuring linear sliding. The rotational force of the first lead screw 10 is converted into linear motion of the first slider 12, causing the two first sliders 12 to slide synchronously back and forth along the first groove 13, causing the mounting plate 11 to move the forming plate 8 at its upper end inside the lower mold 2. The first connecting rod 9 moves back and forth and slides inside the lower mold 2. The scale line on the outside of the first connecting rod 9 can provide real-time feedback on the moving distance of the mounting plate 11. The operator can adjust the mounting plate 11 together with the forming plate 8 and the sheet metal parts to the preset position in the front and back direction according to the requirements of the sheet metal parts riveting position without the need for additional measuring tools. In addition, the first guide rod 3, which is fixedly connected to the first slider 12, will slide synchronously with the slider. It will always limit the offset tendency of the mounting plate 11, effectively prevent the mounting plate 11 from tilting during the adjustment process, and ensure the stability of the front and back adjustment.

[0032] For adjusting the side position of the forming plate 8, the operator rotates the second lead screw 5 on one side of the lower mold 2. The second lead screw 5 is threadedly connected to one of the second sliders 15, and both second sliders 15 are slidably embedded in the second slide groove 14 of the mounting plate 11. Therefore, the rotation of the second lead screw 5 will drive the two second sliders 15 to slide synchronously along the second slide groove 14. The second sliders 15 slide with the lower mold 2 through the second connecting rod 6. The scale line on the outside of the second connecting rod 6 can be read intuitively to facilitate the operator to accurately control the movement range, thereby driving the mounting plate 11, the forming plate 8 and the sheet metal parts to move stably inside the lower mold 2. After adjusting to the preset riveting position, the second lead screw 5 is stopped to complete the side positioning. During this process, the second guide rod 7, which is fixed to the second slider 15, always slides along the fixed trajectory, playing a key guiding and anti-tilting role, effectively preventing the mounting plate 11 from shifting or tilting during the adjustment process, and ensuring the straightness and accuracy of the side adjustment.

[0033] Subsequently, the upper mold 1 moves smoothly downward under the drive of the hydraulic rod. The riveting head at the lower end of the upper mold 1 (not marked in the figure) is a standard component that precisely aligns with the concave mold on the forming plate 8 of the lower mold 2, thereby applying stable pressure to the preset riveting position of the sheet metal part. Due to the accurate positioning and firm clamping in the early stage, the sheet metal part does not shift or warp during the riveting process, and the rivet can deform evenly in the preset position, ultimately achieving high-quality riveting. After the riveting is completed, the hydraulic rod drives the upper mold 1 to reset upward, and the operator can release the clamping state of the forming plate 8 and easily take out the riveted sheet metal part. The entire operation process is efficient and stable.

[0034] The threaded drive ensures smooth and controllable movement, the scale lines provide precise visualization of the adjustment distance, the guide rod prevents tilting during adjustment, effectively avoids displacement of sheet metal parts during riveting, reduces scrap rate, the entire operation process requires no complicated tools, the forming plate 8 can be fixed by simply rotating the screw 18 to complete bidirectional clamping, the front and back, and side adjustments are achieved by rotating the lead screw, and the scale lines provide intuitive feedback on the adjustment distance, the operator does not need to rely on external measuring tools, the learning curve is low, thereby improving the overall riveting operation efficiency;

[0035] The precise fit between the first slider 12 and the first slide groove 13, and the second slider 15 and the second slide groove 14, along with the anti-tilting design of the guide rod, ensure that the mounting plate 11 remains stable without shaking or tilting during adjustment. The bidirectional clamping structure between the extrusion plate 17 and the fixing plate 16 can accommodate forming plates 8 of different thicknesses and sizes, eliminating the need for custom-made fixing components for specific forming plates 8. Furthermore, all transmission components are made of high-strength steel, making them wear-resistant and durable, thus increasing the overall service life of the mold and reducing maintenance and replacement costs. It should be noted that all standard parts used in this application can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt mature bolts, rivets, welding, and other conventional methods in the prior art. Mechanical components, parts, and equipment all adopt conventional models in the prior art, therefore, they will not be described in detail. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Working principle: When fixing the forming plate 8 onto the mounting plate 11, first place it on the mounting plate 11. Then, rotate the screw 18 to make it slide inside the fixing plate 16, thereby pushing the extrusion plate 17 to move to one side of the forming plate 8, so that the forming plate 8 slides on the upper end of the mounting plate 11, so that its other side contacts another fixing plate 16. The extrusion plate 17 continues to move, thereby fixing the forming plate 8 and placing it on the upper end of the mounting plate 11.

[0037] When adjusting the front and rear positions of the forming plate 8, by rotating the first lead screw 10 at the rear end of the lower mold 2, since the first lead screw 10 is threadedly connected to one of the first sliders 12 and both first sliders 12 are slidably disposed in the first slide groove 13 of the mounting plate 11, the rotation of the first lead screw 10 will drive the two first sliders 12 to slide back and forth synchronously along the first slide groove 13.

[0038] The first slider 12 is slidably connected to the lower mold 2 via the first connecting rod 9. The scale line on the outside of the first connecting rod 9 can display the adjustment distance in real time. The operator can adjust the mounting plate 11 together with the forming plate 8 and the sheet metal parts to the precise position in the front and back directions according to the requirements of the sheet metal parts riveting position. The first guide rod 3 slides synchronously with the first slider 12 to avoid the mounting plate 11 from tilting during the adjustment process.

[0039] When adjusting the side position of the forming plate 8, by rotating the second lead screw 5 on one side of the lower mold 2, the rotation of the second lead screw 5 will drive the two second sliders 15 to slide synchronously along the second slide groove 14, thereby driving the mounting plate 11, the forming plate 8 and the sheet metal parts to move inside the side of the lower mold 2 until they reach the preset riveting position. The second guide rod 7 plays a guiding and anti-tilting role.

[0040] After the sheet metal part is accurately positioned and clamped in multiple dimensions, the upper mold 1 moves downward under the drive of the hydraulic rod to perform riveting operation on the preset position of the sheet metal part, thereby finally completing high-quality riveting. Subsequently, the upper mold 1 is reset upward, and the riveted sheet metal part can be taken out.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-stability riveting die, comprising an upper die (1), characterized in that: The upper mold (1) is provided with a lower mold (2) at its lower end. The lower mold (2) is provided with a mounting plate (11) that slides inside. The mounting plate (11) has a first sliding groove (13) at both the front and rear ends. The two first sliding grooves (13) are provided with a first slider (12) that slides outside. The rear end of one of the two first sliders (12) is provided with a first lead screw (10). The front end of the other one of the two first sliders (12) is fixedly provided with a first guide rod (3). The mounting plate (11) has a second sliding groove (14) on both sides. The two second sliding grooves (14) are provided with a second slider (15) that slides inside. The side of one of the two second sliders (15) is provided with a second lead screw (5) that rotates. The side of the other two second sliders (15) away from the second lead screw (5) is fixedly provided with a second guide rod (7). The mounting plate (11) is fixedly provided with fixing plates (16) on both sides of the upper end. One of the two fixing plates (16) is threadedly connected to a screw (18) on the side closer to the second screw (5). The screw (18) is rotatably provided with an extrusion plate (17) on the side away from the second screw (5). The mounting plate (11) is provided with a forming plate (8) at the upper end.

2. The high-stability riveting die according to claim 1, characterized in that: The screw (18) is externally threaded to the rear end of the lower mold (2), and the first guide rod (3) is externally slidably disposed at the front end of the lower mold (2).

3. The high-stability riveting die according to claim 1, characterized in that: The second lead screw (5) is externally threaded to one side of the lower mold (2), and the second guide rod (7) is externally slidably disposed on the other side of the lower mold (2).

4. The high-stability riveting die according to claim 1, characterized in that: One side of the forming plate (8) is located on one side of one of the two fixing plates (16) near the second guide rod (7), and the other side of the forming plate (8) is located on the side of the extrusion plate (17).

5. The high-stability riveting die according to claim 1, characterized in that: A second connecting rod (6) is fixedly provided on the side of the two second sliders (15) near the second lead screw (5), and a first connecting rod (9) is fixedly provided on the side of one of the two first sliders (12) near the first lead screw (10).

6. The high-stability riveting die according to claim 5, characterized in that: The second connecting rod (6) is externally slidably disposed on one side inside the lower mold (2), and the first connecting rod (9) is externally slidably disposed at the rear end inside the lower mold (2). Both the first connecting rod (9) and the second connecting rod (6) are provided with scale lines on their exteriors.

7. The high-stability riveting die according to claim 1, characterized in that: The lower end of the extrusion plate (17) is slidably disposed on the upper end of the mounting plate (11), and multiple fixing rods (4) are fixedly disposed on the upper end of the lower mold (2).

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