An automatic riveting machine

Abstract

The utility model relates to a kind of press-in technology field, concretely relates to a kind of automatic press-in machine. Including bottom plate, the upper end of bottom plate is fixed with support, the upper end of support is fixed with slide, the vertical direction of slide is slidably provided with slide plate, the upper end of first air cylinder and second air cylinder is fixed with upper bracket, the telescopic end of second air cylinder is fixedly connected with the upper end of slide plate, fixed plate is fixed on slide plate, the telescopic end of first air cylinder is fixedly connected with fixed plate, the lower end of fixed plate is fixed with punch, the bottom plate below punch is detachably fixedly connected with mould, the vertical direction of the outside of mould is slidably provided with lifting plate, lifting plate is connected with bottom plate by third air cylinder, two long grooves are set up on lifting plate, two jacking assemblies are arranged in long groove. The utility model is provided with jacking assembly, when lifting plate goes down, automatically swing support plate material upwards with carrier roller, so that plate material is easily moved in left and right directions, it is convenient to quickly position press-in part, reduce manual adjustment time.

Description

Technical Field

[0001] This utility model relates to the field of riveting technology, specifically to an automatic riveting machine. Background Technology

[0002] A press riveting machine is a new type of riveting equipment developed based on the principle of cold rolling. It is a mechanical device that uses rivets to rivet items together. Press riveting machines can fix hollow rivets, solid rivets, etc., onto sheet metal, thereby facilitating the connection of sheet metal.

[0003] Patent document CN216226777U discloses an automatic riveting machine. Through a set of pressing mechanism, positioning plate, telescopic mechanism, and base plate, it facilitates the positioning of the upper mold assembly. When the upper mold assembly approaches the lower mold assembly, displacement is prevented. One end of the upper mold assembly can pass through a circular hole to press against the lower mold assembly, thereby determining the displacement. When processing a flat piece, the telescopic mechanism drives the base plate closer to one end of the lower mold assembly. The sliding cavity is fitted onto the outside of the lower mold assembly, with its top flush with the top of the lower mold assembly. Combined with the upper positioning plate, the two correspond to fix the flat piece, thereby reducing manual operation and eliminating the risk of accidents. This technical solution can stabilize the sheet metal during riveting of small areas. However, during riveting of large areas, frequent adjustments to the sheet metal's position are required. Simply pressing the riveting point is insufficient to effectively stabilize the entire sheet metal.

[0004] Patent document CN220361954U discloses an automatic riveting machine. This automatic riveting machine, equipped with a bidirectional threaded column, a fixed plate, a cylinder, and a pressure plate, can clamp and position plates of different sizes. By incorporating casters, a screw, a handle, and a second pad, it effectively increases the distance between the user's hand and the upper and lower riveting dies, preventing accidents. However, in the process of multi-point riveting of large-area plates, the plate needs to have high flexibility to improve riveting efficiency. This technical solution can stabilize the plate and use casters to assist in its movement; however, positioning the plate is cumbersome, resulting in low riveting efficiency. Utility Model Content

[0005] The main purpose of this utility model is to provide an automatic riveting machine that can provide multi-point support for plates that need to be riveted and facilitate the movement of the plates when changing the riveting points.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] An automatic riveting machine includes a base plate, a bracket fixed to the upper end of the base plate, a slide fixed to the upper end of the bracket, a slide plate slidably mounted on the slide plate in the vertical direction, an upper frame fixed to the upper end of the slide plate, a first cylinder and a second cylinder fixed to the upper end of the upper frame, the telescopic end of the second cylinder being fixedly connected to the upper end of the slide plate, a fixed plate fixed to the slide plate, the telescopic end of the first cylinder being fixedly connected to the fixed plate, a punch fixed to the lower end of the fixed plate, a mold detachably fixedly connected to the base plate below the punch, the mold being concentric with the punch, a lifting plate slidably mounted in the vertical direction on the outer side of the mold, the lifting plate being connected to the base plate via a third cylinder, two elongated slots being opened on the lifting plate, each slot containing two lifting components, the lifting components supporting the sheet metal, and the lifting components lifting the sheet metal after the lifting plate descends.

[0008] Specifically, the lifting assembly includes a fixed rod fixed in a long groove, one end of which is rotatably connected to a swing rod, and the other end of which is rotatably connected to a roller. The upper end of the roller protrudes above the lifting plate and is flush with the upper end of the mold. A toothed ring is rotatably fitted on the fixed rod and is fixedly connected to the swing rod. The assembly also includes a rack that meshes with the toothed ring. The rack is vertically arranged and its lower end is fixed to the base plate.

[0009] Specifically, the first, second, and third cylinders are arranged vertically, with two third cylinders arranged symmetrically on the left and right. The third cylinders are fixed to the base plate, and the telescopic ends of the third cylinders are fixedly connected to the lifting plate.

[0010] Specifically, the lower end of the punch is concentrically fixed with an arc-shaped protrusion, the upper end of the mold is concentrically provided with an arc-shaped groove, and the mold below the groove is concentrically provided with a slot. A rod is elastically slidably inserted into the slot, the upper end of the rod passes through the groove, and the upper end of the rod passes through the opening on the plate to position the plate. After the punch and the mold squeeze the plate, an arc-shaped protrusion is formed on the plate under the cooperation of the protrusion and the groove.

[0011] Specifically, the lower end of the insertion rod is connected to the bottom of the slot by a spring.

[0012] Specifically, the upper end of the insertion rod is tapered.

[0013] Specifically, the two elongated slots are symmetrically arranged on the lifting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By setting up a lifting component, the idler rollers automatically swing upward to support the plate when the lifting plate descends, allowing the plate to move easily in the left and right directions. This facilitates quick positioning of the riveting parts, reduces manual adjustment time, and after riveting is completed, the lifting plate descends again to drive the idler rollers to lift the plate, achieving automatic unloading and convenient movement, simplifying the continuous operation process of multi-position riveting.

[0016] 2. The insertion rod mechanism penetrates the opening in the sheet metal for precise positioning, ensuring that the riveting part is accurately aligned with the punch and the die; the upper end of the insertion rod is tapered, which further enhances the ease of insertion into the opening and reduces positioning deviation. The concentric setting of the punch and the die ensures that the sheet metal is subjected to uniform force during the riveting process, forming a consistent arc-shaped protrusion and improving product consistency.

[0017] 3. The first, second, and symmetrically arranged third cylinders work together to drive the slide plate, punch, and lifting plate, achieving a fully automated cycle of riveting, positioning, and sheet metal lifting, reducing the need for manual intervention and improving processing efficiency. The linkage design between the lifting assembly and the third cylinder ensures seamless connection between sheet metal loading / unloading and position switching, shortening the processing cycle.

[0018] 4. The symmetrically distributed third cylinders provide balanced driving force, ensuring smooth movement of the lifting plate and preventing the plate from tilting or shifting. The rigid connection design of the overall structure enhances the vibration resistance and durability of the equipment during the riveting process.

[0019] 5. The first cylinder directly drives the fixed plate, and the second cylinder drives the sliding plate. When both start simultaneously, they form a combined force on the punch, providing greater downward pressure. This ensures that during the riveting process, the punch's protrusion can fully squeeze the sheet metal, causing it to form a consistent arc-shaped protrusion under the cooperation of the mold's groove. The first and second cylinders work together to keep the sliding plate, fixed plate, and punch moving downward in sync, reducing vibration or tilting. This helps the punch and mold remain concentric, thereby improving the consistency of the riveting shape and product quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the riveting machine.

[0021] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0022] Figure 3 This is a schematic diagram showing the connection between the fixed plate and the sliding plate.

[0023] Figure 4 This is a schematic diagram showing the fit between the punch and the die.

[0024] The components in the attached diagram are named as follows: 1. Base plate, 2. Bracket, 3. Slide, 4. Slide plate, 5. Fixing plate, 6. First cylinder, 7. Second cylinder, 8. Punch, 801. Protrusion, 9. Mold, 901. Groove, 902. Insert rod, 903. Slot, 904. Spring, 10. Lifting plate, 11. Long groove, 12. Fixing rod, 13. Swing rod, 14. Roller, 15. Gear ring, 16. Rack, 17. Third cylinder, 18. Upper frame, 19. Plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1: Refer to Figures 1-4 As shown, an automatic riveting machine includes a base plate 1, a bracket 2 fixed to the upper end of the base plate 1, a slide 3 fixed to the upper end of the bracket 2, a slide plate 4 slidably arranged in the vertical direction of the slide 3, an upper frame 18 fixed to the upper end of the slide 3, a first cylinder 6 and a second cylinder 7 fixed to the upper end of the upper frame 18, the first cylinder 6 and the second cylinder 7 being vertically arranged, the telescopic end of the second cylinder 7 being fixedly connected to the upper end of the slide plate 4, a fixing plate 5 being fixed on the slide plate 4, the telescopic end of the first cylinder 6 being fixedly connected to the fixing plate 5, a punch 8 being fixed to the lower end of the fixing plate 5, and a mold 9 being detachably fixedly connected to the base plate 1 below the punch 8, the mold 9 being concentric with the punch 8.

[0027] A lifting plate 10 is slidably arranged on the outer side of the mold 9 in the vertical direction. The lifting plate 10 is connected to the base plate 1 through a third cylinder 17. The third cylinder 17 is arranged vertically, and there are two third cylinders 17. The two third cylinders 17 are arranged symmetrically on the left and right. The third cylinder 17 is fixed on the base plate 1, and the telescopic end of the third cylinder 17 is fixedly connected to the lifting plate 10.

[0028] The lifting plate 10 has two elongated slots 11, which are symmetrically arranged front and back on the lifting plate 10. Each elongated slot 11 is equipped with two lifting components, which support the plate 19. After the lifting plate 10 descends, the lifting components lift the plate 19.

[0029] The lifting assembly includes a fixed rod 12 fixed within the elongated groove 11. One end of the fixed rod 12 is rotatably connected to a swing rod 13, and the other end of the swing rod 13 is rotatably connected to a support roller 14. The upper end of the support roller 14 protrudes above the lifting plate 10, and is flush with the upper end of the mold 9. A toothed ring 15 is rotatably fitted onto the fixed rod 12, and the toothed ring 15 is fixedly connected to the swing rod 13. It also includes a rack 16 that meshes with the toothed ring 15. The rack 16 is vertically arranged, and its lower end is fixed to the base plate 1.

[0030] The lower end of the punch 8 is concentrically fixed with an arc-shaped protrusion 801, the upper end of the mold 9 is concentrically provided with an arc-shaped groove 901, the mold 9 below the groove 901 is concentrically provided with a slot 903, a rod 902 is elastically slidably inserted into the slot 903, and the upper end of the rod 902 passes through the groove 901.

[0031] Specifically, the lower end of the insertion rod 902 is connected to the bottom of the slot 903 by a spring 904.

[0032] The upper end of the insert rod 902 penetrates the opening on the plate 19 to position the plate 19. After the punch 8 and the mold 9 squeeze the plate 19, an arc-shaped protrusion is formed on the plate 19 under the cooperation of the protrusion 801 and the groove 901.

[0033] When processing the sheet metal 19, the third cylinder 17 is activated, causing the lifting plate 10 to descend. After the lifting plate 10 descends, under the meshing action of the rack 16 and the gear ring 15, the end of the swing arm 13 away from the fixed rod 12 drives the support roller 14 to swing upward. Then, the sheet metal 19 is supported by multiple support rollers 14. When moving the sheet metal 19, since the support rollers 14 support the sheet metal 19, it is convenient for the sheet metal 19 to move in the left and right directions, making it convenient for the parts of the sheet metal 19 that need to be riveted to move between the punch 8 and the die 9.

[0034] When the part of the plate 19 that needs to be riveted moves between the punch 8 and the mold 9, the third cylinder 17 drives the lifting plate 10 to move upward and reset. The swing arm 13 then resets. After the swing arm 13 resets, the upper end of the roller 14 is flush with the upper end of the mold 9, and the lower end of the part of the plate 19 that needs to be riveted contacts the upper end of the mold 9. When the punch 8 presses the plate 19, the part of the plate 19 below the punch 8 can be effectively supported by the mold 9.

[0035] After the lower end of the part of the plate 19 that needs to be riveted contacts the upper end of the mold 9, the insert rod 902 passes through the opening on the plate 19, thereby positioning the plate 19. Then, the first cylinder 6 and the second cylinder 7 are activated simultaneously, and the slide plate 4, the fixing plate 5 and the punch 8 move downward. When the protrusion 801 of the punch 8 presses the plate 19, the insert rod 902 moves downward. Under the cooperation of the protrusion 801 and the groove 901, the plate 19 forms an arc-shaped protrusion.

[0036] The first cylinder 6 and the second cylinder 7 start simultaneously and drive the slide plate 4, the fixed plate 5 and the punch 8 downward, which can improve the stability of the downward movement of the punch 8.

[0037] After the punch 8 presses the plate 19 upward, the insert rod 902 is reset under the action of the spring 904. This causes the third cylinder 17 to drive the lifting plate 10 downward. After the lifting plate 10 moves downward, under the meshing action of the rack 16 and the toothed ring 15, the end of the swing rod 13 away from the fixed rod 12 drives the roller 14 to swing upward. The plate 19 is supported by multiple rollers 14 and moves upward. When the insert rod 902 withdraws from the opening of the plate 19, the plate 19 can be moved directly to press and rivet other positions of the plate 19.

[0038] Example 2: Based on Example 1, referring to... Figure 4 As shown, the upper end of the insertion rod 902 is tapered.

[0039] Since the upper end of the insertion rod 902 is tapered, it is convenient for the insertion rod 902 to be inserted into the opening of the plate 19 and to position the plate 19.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. An automatic riveting machine, comprising a base plate (1), wherein a bracket (2) is fixed to the upper end of the base plate (1), characterized in that, A slide (3) is fixed to the upper end of the bracket (2). A slide plate (4) is slidably mounted on the slide (3) in the vertical direction. An upper frame (18) is fixed to the upper end of the slide (3). A first cylinder (6) and a second cylinder (7) are fixed to the upper end of the upper frame (18). The telescopic end of the second cylinder (7) is fixedly connected to the upper end of the slide plate (4). A fixing plate (5) is fixed on the slide plate (4). The telescopic end of the first cylinder (6) is fixedly connected to the fixing plate (5). A punch (8) is fixed to the lower end of the fixing plate (5). A mold (9) is detachably fixedly connected to the bottom plate (1) below. The mold (9) is concentric with the punch (8). A lifting plate (10) is slidably arranged in the vertical direction outside the mold (9). The lifting plate (10) is connected to the bottom plate (1) through a third cylinder (17). Two long slots (11) are opened on the lifting plate (10). Two lifting components are arranged in each long slot (11). The lifting components support the plate (19). After the lifting plate (10) moves down, the lifting components lift the plate (19).

2. The automatic riveting machine according to claim 1, characterized in that, The lifting assembly includes a fixed rod (12) fixed in the long groove (11), the fixed rod (12) being rotatably connected to one end of the swing rod (13), and the other end of the swing rod (13) being rotatably connected to a roller (14). The upper end of the roller (14) protrudes above the lifting plate (10), and the upper end of the roller (14) is flush with the upper end of the mold (9). A toothed ring (15) is rotatably sleeved on the fixed rod (12), and the toothed ring (15) is fixedly connected to the swing rod (13). It also includes a rack (16) meshing with the toothed ring (15). The rack (16) is vertically arranged, and the lower end of the rack (16) is fixed on the base plate (1).

3. The automatic riveting machine according to claim 1, characterized in that, The first cylinder (6), the second cylinder (7) and the third cylinder (17) are arranged vertically. There are two third cylinders (17), which are arranged symmetrically on the left and right. The third cylinder (17) is fixed on the base plate (1), and the telescopic end of the third cylinder (17) is fixedly connected to the lifting plate (10).

4. The automatic riveting machine according to claim 2, characterized in that, The punch (8) has an arc-shaped protrusion (801) concentrically fixed at its lower end. The mold (9) has an arc-shaped groove (901) concentrically opened at its upper end. The mold (9) below the groove (901) has a slot (903) concentrically opened inside. A rod (902) is elastically slidably inserted into the slot (903). The upper end of the rod (902) passes through the groove (901). The upper end of the rod (902) passes through the opening on the plate (19) to position the plate (19). After the punch (8) and the mold (9) squeeze the plate (19), an arc-shaped protrusion is formed on the plate (19) under the cooperation of the protrusion (801) and the groove (901).

5. An automatic riveting machine according to claim 4, characterized in that, The lower end of the insertion rod (902) is connected to the bottom of the slot (903) by a spring (904).

6. An automatic riveting machine according to claim 4, characterized in that, The upper end of the insertion rod (902) is tapered.

7. The automatic riveting machine according to claim 1, characterized in that, The two long slots (11) are symmetrically arranged on the lifting plate (10).

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