High-precision automatic squeeze riveter

Abstract

The utility model discloses a high-precision automatic squeeze riveter and relates to the technical field of squeeze riveters, the high-precision automatic squeeze riveter comprises a bottom plate and a supporting plate fixedly connected to the top end of the bottom plate, a squeeze riveting mechanism is arranged at the top end of the bottom plate, a fixing and limiting mechanism is arranged on the side edge of the squeeze riveting mechanism, and the output end of a squeeze riveting hydraulic cylinder is fixedly connected with a squeeze riveting block. A rotating groove is formed in the top end of the bottom plate, a rotating supporting plate is slidably connected to the inner wall of the rotating groove, firstly, nuts are placed in six inserting columns, then a workpiece is placed at a notch in the top end of a placing plate, the workpiece is limited through a limiting plate, then a rivet pressing hydraulic cylinder can be started, the output end of the rivet pressing hydraulic cylinder can drive a rivet pressing block to move downwards, and the rivet pressing block is driven to move downwards. When a pressing rivet block makes contact with a workpiece, the workpiece can be extruded so that first-step limiting can be conducted, then the pressing rivet block continues to extrude a containing plate, at the moment, the containing plate can drive a sliding block to move downwards on the outer wall of a sliding rod, and meanwhile the sliding block extrudes and compresses a spring till the spring makes contact with a nut placed on an inserting column.

Description

Technical Field

[0001] The present application relates to the technical field of riveting machines, and in particular to a high-precision automatic riveting machine. Background Art

[0002] The self-clinching nut is a fastener used in sheet metal, thin plates, chassis, and cabinets. The self-clinching nut is pressed into the pre-set hole of the workpiece such as the thin plate by a press, and the periphery of the hole is plastically deformed, so that the self-clinching nut is tightly fixed to the thin plate, thereby forming an internal thread structure on the thin plate that can effectively fix the screw.

[0003] For example, an automatic riveting machine disclosed in Chinese patent CN211915385U mainly solves the problem of supporting the workpiece with a support plate to prevent the workpiece from tilting during the riveting process. The clamping rod can press the workpiece tightly against the support plate to prevent the workpiece from sliding on the support plate, making the riveting process more stable and reducing the scrap rate of the workpiece.

[0004] The riveting machine supports the workpiece by a support plate to prevent the workpiece from tilting, and prevents the workpiece from sliding by a clamping rod. However, the riveting machine can only perform riveting on one workpiece at a time and cannot perform riveting on multiple workpieces at the same time. This requires the staff to repeat the loading process many times, which reduces the efficiency of riveting and makes it inconvenient for the staff to use it. Utility Model Content

[0005] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a high-precision automatic riveting machine, comprising a base plate;

[0007] A support plate is fixedly connected to the top of the base plate. A riveting mechanism is provided on the top of the base plate. A fixed limiting mechanism is provided on the side of the riveting mechanism. The riveting mechanism includes a riveting hydraulic cylinder:

[0008] The top end of the sliding plate is fixedly connected to the sliding plate, and the outer wall of the sliding plate is fixedly connected to the sliding plate.

[0009] By adopting the above technical solution, multiple workpieces can be riveted simultaneously, thereby improving the efficiency of the riveting work and making it easier for workers to use it.

[0010] Optionally, the fixed limiting mechanism includes a recessed hole formed on the outer walls of the left and right sides of the support plate, the inner wall of the recessed hole is fixedly connected to a hydraulic cylinder, the outer wall of the output end of the hydraulic cylinder is fixedly connected to a connecting rod, the connecting rod is fixedly connected to a limiting ring at one end away from the hydraulic cylinder, and the outer wall of the limiting ring at one end away from the connecting rod is in contact with the outer wall of the placement plate.

[0011] By adopting the above technical solution, the workpiece can be limited and fixed, thereby further stabilizing the workpiece on the basis of the rivet block, thus ensuring high-precision riveting work of the riveting machine.

[0012] Optionally, six notches are opened at the top of the placement plate, and the number of the insertion posts is six, and the positions of the insertion posts correspond one to one to the notches.

[0013] By adopting the above technical solution, six workpieces can be placed at a time for synchronous riveting work, thereby improving the efficiency of the riveting work.

[0014] Optionally, there are two limiting rings, which are distributed on the top of the bottom plate in a bilaterally symmetrical structure, and the thickness of the limiting rings exceeds half of the placement plate.

[0015] By adopting the above technical solution, the left and right outer walls of the placement plate can be completely limited and closed, thereby ensuring the stability of each workpiece during riveting.

[0016] Optionally, the inner wall of the rotating groove opened at the top of the bottom plate fits snugly with the outer wall of the rotating support plate.

[0017] By adopting the above technical solution, the limiting guide between the rotating support plate and the rotating groove can be ensured, thereby ensuring the stability of the rotating support plate during rotation.

[0018] Optionally, the outer wall of the limiting ring away from the end of the connecting rod fits snugly with the outer wall of the placement plate.

[0019] By adopting the above technical solution, it can be ensured that the limit ring can fit completely on the outer wall of the placement plate, thereby ensuring the stability of the limit ring when limiting and fixing the workpiece, and improving the riveting work to achieve high precision.

[0020] Optionally, the rivet block is hexagonal in shape, and the distance between each convex outer wall of the rivet block and the two limiting plates is equal.

[0021] By adopting the above technical solution, it can be ensured that each edge of the rivet block can completely press against the outer wall of the workpiece, thereby improving the stability of the workpiece during rivet riveting.

[0022] Optionally, there are two rotating support plates, and the rotating support plates are distributed on the outer wall of the placement plate in a bilaterally symmetrical structure.

[0023] By adopting the above technical solution, the left and right sides of the placement plate can be supported synchronously, thereby improving the stability of the placement plate during movement.

[0024] In summary, the beneficial effects of this application are as follows:

[0025] 1. This application uses the coordination setting between the structures in the riveting mechanism. First, the nut is placed in the six plugs, and then the workpiece is placed in the notch at the top of the placement plate. It is limited by the limit plate, and then the riveting hydraulic cylinder can be started. Its output end will drive the riveting block to move downward. When the riveting block contacts the workpiece, it will squeeze the workpiece to perform the first step of limiting. Then the riveting block will continue to squeeze the placement plate. At this time, the placement plate will drive the slider to move downward on the outer wall of the slide rod, and the slider will squeeze and compress the spring until it contacts the nut placed on the plug.

[0026] 2. The present application fixes the coordination between the structures in the limiting mechanism, starts the hydraulic cylinder to shorten, and its output end will drive the connecting rod to move toward the middle. The movement of the connecting rod will drive the two limiting rings to move toward the middle, so that they can contact the outer wall of the placement plate, thereby limiting the outer wall of one end of the workpiece. This can further increase the stability of the rivet block in the limiting function and improve the high precision of the rivet work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of this application;

[0028] Figure 2 This is a schematic diagram of the bottom structure of this application;

[0029] Figure 3 This is a schematic cross-sectional view of the riveting mechanism of the present application;

[0030] Figure 4 It is a structural diagram of the fixed limiting mechanism of this application.

[0031] Explanation of the accompanying reference numerals: 1. Base plate; 2. Support plate; 31. Riveting mechanism; 311. Riveting hydraulic cylinder; 312. Riveting block; 313. Rotating support plate; 314. Slide rod; 315. Slider; 316. Spring; 317. Placement plate; 318. Limiting plate; 319. Motor; 3110. Turntable; 3111. Insert column; 32. Fixed limiting mechanism; 321. Hydraulic cylinder; 322. Connecting rod; 323. Limiting ring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Example 1

[0034] like Figure 1-4 As shown, the utility model provides a technical solution: a high-precision automatic riveting machine, including a base plate 1, a support plate 2 fixedly connected to the top of the base plate 1, a riveting mechanism 31 is provided at the top of the base plate 1, and a fixed limiting mechanism 32 is provided on the side of the riveting mechanism 31, the riveting mechanism 31 includes a riveting hydraulic cylinder 311, and a riveting block 312 is fixedly connected to the output end of the riveting hydraulic cylinder 311. The riveting block 312 is hexagonal in shape, and the distance between each convex outer wall of the riveting block 312 and the two limiting plates 318 is equal. A rotating groove is provided at the top of the base plate 1, and the inner wall of the rotating groove is slidably connected to a rotating support plate 313. There are two rotating support plates 313, and the rotating support plates 313 are distributed on the outer wall of the placement plate 317 in a left-right symmetrical structure, so that the placement plate 317 can be placed on the right. The left and right sides of the placement plate 317 provide simultaneous support, thereby improving the stability of the placement plate 317 during movement. A slot is provided on the outer wall of the rotating support plate 313, the inner wall of which is fixedly connected to a slide bar 314. A slider 315 is slidably connected to the outer wall of the slider 314. A spring 316 is fixedly connected to the bottom end of the slider 315. The end of the spring 316 away from the slider 315 is fixedly connected to the inner wall of the slot. The outer wall of the slider 315 away from the rotating support plate 313 is fixedly connected to the placement plate 317. The top of the placement plate 317 is fixedly connected to a limit plate 318. A groove is provided on the top of the base plate 1, the inner wall of which is fixedly connected to a motor 319. The output end of the motor 319 is fixedly connected to a turntable 3110. The turntable 3110 is rotatably connected to the base plate 1. A plug post 3111 is fixedly connected to the top of the turntable 3110.

[0035] Furthermore, six notches are provided at the top of the placement plate 317, and there are six pins 3111, which correspond one to one with the positions of the notches. In this way, six workpieces can be placed at one time for synchronous riveting, thereby improving the efficiency of the riveting work.

[0036] Furthermore, the inner wall of the rotation groove opened at the top of the bottom plate 1 fits in contact with the outer wall of the rotation support plate 313, which ensures the limiting guidance between the rotation support plate 313 and the rotation groove, thereby ensuring the stability of the rotation support plate 313 during rotation.

[0037] Example 2

[0038] On the basis of Example 1, the present invention provides a preferred embodiment of a high-precision automatic riveting machine: the fixed limiting mechanism 32 includes a concave hole opened on the outer wall of the left and right sides of the support plate 2, the inner wall of the concave hole is fixedly connected to the hydraulic cylinder 321, the outer wall of the output end of the hydraulic cylinder 321 is fixedly connected to the connecting rod 322, the connecting rod 322 is fixedly connected to the limiting ring 323 at one end away from the hydraulic cylinder 321, and the outer wall of the limiting ring 323 at one end away from the connecting rod 322 is in contact with the outer wall of the placement plate 317.

[0039] Furthermore, there are two limiting rings 323, which are distributed at the top of the base plate 1 in a left-right symmetrical structure. The thickness of the limiting ring 323 exceeds half of the placement plate 317, so that the left and right outer walls of the placement plate 317 can be completely limited and closed, thereby ensuring the stability of each workpiece during riveting.

[0040] Furthermore, the outer wall of the end of the limiting ring 323 away from the connecting rod 322 fits in place with the outer wall of the placement plate 317, thereby ensuring that the limiting ring 323 can fit completely on the outer wall of the placement plate 317, thereby ensuring the stability of the limiting ring 323 when limiting and fixing the workpiece, improving the riveting work to achieve high precision.

[0041] The implementation principle of the present application is as follows: first, the nut is placed in the six plug posts 3111, and then the workpiece is placed in the notch at the top of the placement plate 317. The limiting plate 318 limits it, and then the riveting hydraulic cylinder 311 is started, and its output end drives the riveting block 312 to move downward. When the riveting block 312 contacts the workpiece, it squeezes the workpiece to perform the first step of limiting. Then, the riveting block 312 continues to squeeze the placement plate 317. At this time, the placement plate 317 will drive the slider 315 to move downward on the outer wall of the slide rod 314. At the same time, the slider 315 squeezes and compresses the spring 316 until it contacts the nut placed on the plug post 3111.

[0042] Then the hydraulic cylinder 321 is started to shorten, and its output end will drive the connecting rod 322 to move toward the middle. The movement of the connecting rod 322 will drive the two limiting rings 323 to move toward the middle, so that they can contact the outer wall of the placement plate 317, thereby limiting the outer wall of one end of the workpiece, thereby further increasing the stability of the limiting function of the rivet block 312 and improving the high precision of the rivet work.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-precision automatic riveting machine, comprising a base plate (1); The support plate (2) is fixedly connected to the top of the bottom plate (1), and is characterized by: A riveting mechanism (31) is provided at the top of the base plate (1), a fixed limiting mechanism (32) is provided on the side of the riveting mechanism (31), and the riveting mechanism (31) comprises a riveting hydraulic cylinder (311): The output end of the pressure riveting hydraulic cylinder (311) is fixedly connected to a pressure riveting block (312), the top of the bottom plate (1) is provided with a rotation groove, the inner wall of the rotation groove is slidably connected to a rotation support plate (313), the outer wall of the rotation support plate (313) is provided with a slide groove, the inner wall of the slide groove is fixedly connected to a slide bar (314), the outer wall of the slide bar (314) is slidably connected to a slider (315), the bottom end of the slider (315) is fixedly connected to a spring (316), and the spring (316) is away from the slider ( One end of the slider (315) is fixedly connected to the inner wall of the slide groove, the outer wall of one end of the slider (315) away from the rotating support plate (313) is fixedly connected to a placement plate (317), the top of the placement plate (317) is fixedly connected to a limit plate (318), the top of the bottom plate (1) is provided with a groove, the inner wall of the groove is fixedly connected to a motor (319), the output end of the motor (319) is fixedly connected to a turntable (3110), and the top of the turntable (3110) is fixedly connected to a plug post (3111).

2. A high-precision automatic riveting machine according to claim 1, characterized in that: The fixed limiting mechanism (32) comprises concave holes formed on the outer walls of the left and right sides of the support plate (2); the inner walls of the concave holes are fixedly connected to a hydraulic cylinder (321); the outer wall of the output end of the hydraulic cylinder (321) is fixedly connected to a connecting rod (322); the end of the connecting rod (322) away from the hydraulic cylinder (321) is fixedly connected to a limiting ring (323); the outer wall of the limiting ring (323) away from the connecting rod (322) contacts the outer wall of the placement plate (317).

3. The high-precision automatic riveting machine according to claim 1, characterized in that: The top of the placement plate (317) is provided with six notches, and the number of the insertion posts (3111) is six, and the positions of the insertion posts (3111) correspond one to one to the notches.

4. The high-precision automatic riveting machine according to claim 2, characterized in that: There are two limiting rings (323), which are distributed at the top of the bottom plate (1) in a bilaterally symmetrical structure. The thickness of the limiting rings (323) exceeds half of the placement plate (317).

5. The high-precision automatic riveting machine according to claim 1, characterized in that: The inner wall of the rotating groove opened at the top of the bottom plate (1) fits snugly with the outer wall of the rotating support plate (313).

6. The high-precision automatic riveting machine according to claim 2, characterized in that: The outer wall of the end of the limiting ring (323) away from the connecting rod (322) fits in contact with the outer wall of the placement plate (317).

7. The high-precision automatic riveting machine according to claim 1, characterized in that: The rivet block (312) is hexagonal in shape, and the distance between each convex outer wall of the rivet block (312) and the two limiting plates (318) is equal.

8. The high-precision automatic riveting machine according to claim 1, characterized in that: There are two rotating support plates (313), and the rotating support plates (313) are distributed on the outer wall of the placement plate (317) in a bilaterally symmetrical structure.

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