Automatic clamping riveting machine

Abstract

The utility model discloses an automatic clamping riveting machine which comprises a machine frame, a working table is arranged in the middle of the machine frame, a mounting groove is formed in the working table, and an automatic riveting device is arranged above the mounting groove. One side of the workbench is slidably connected with a sliding column, the side, penetrating through the workbench, of the sliding column is fixedly connected with a connecting plate, a pressing rod is fixedly arranged on the connecting plate, the bottom of the connecting plate is connected with a spring, the bottom of the spring is fixedly connected with a support, and the support is fixedly connected with the rack; a positioning plate penetrates outside the pressing rod, the top of the pressing rod penetrates through the positioning plate to be hinged to a connecting rod, first connecting rods are connected to the two ends of the connecting rod respectively, second connecting rods are hinged to the two ends of the first connecting rods, clamping jaws are hinged to the second connecting rods, and the bottoms of the clamping jaws are hinged to the positioning plate. The automatic clamping riveting machine has the advantages that the cost is reduced, and the debugging cost is reduced.

Description

Technical Field

[0001] The utility model relates to an automatic clamping riveting machine. Background Art

[0002] The riveting machine is an indispensable automatic device in industrial production, mainly used for the riveting operation of various parts. With the rapid development of the manufacturing industry, the requirements for riveting accuracy and efficiency are constantly increasing, and the precise positioning and reliable clamping of workpieces have become the key factors to ensure the riveting quality. The riveting machines on the market usually consist of a clamping mechanism, a riveting head, a control system, a frame, etc. Among them, the clamping mechanism directly affects the riveting accuracy and efficiency.

[0003] The existing riveting machines mainly use pneumatic clamping to fix workpieces. This clamping method usually requires multiple cylinders to be set up to control the clamping actions in different directions respectively. Each cylinder drives the clamping jaws through mechanical connectors to apply clamping forces to the workpiece from different angles to ensure the stability of the workpiece during the riveting process. This clamping method driven by multiple cylinders has been widely used in industrial production.

[0004] However, the existing riveting machines have the technical problem of cumbersome operation in the workpiece clamping link. Since multiple cylinders are used to drive the clamping respectively, the system not only needs to be equipped with multiple sets of gas circuit systems, but also requires multiple control circuits to coordinate the action sequence and timing of each cylinder. This complex driving method not only increases the manufacturing and maintenance costs of the equipment, but also reduces the reliability of the system. When a certain cylinder or gas circuit fails, the entire clamping system may not work properly.

[0005] The clamping method driven by multiple cylinders also has the problem of difficult debugging. The stroke and clamping force of each cylinder need to be adjusted separately to ensure uniform force on the workpiece. When replacing workpieces of different sizes or shapes, it is often necessary to readjust the parameters of multiple cylinders, which is time-consuming and requires professional operation. At the same time, it is difficult to ensure the synchronization of multiple cylinders, which is likely to cause uneven clamping of workpieces and affect the riveting quality. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an automatic clamping riveting machine. This automatic clamping riveting machine has the characteristics of reducing costs and reducing debugging costs.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions:

[0008] An automatic clamping riveting machine, comprising: a frame, a workbench is arranged in the middle of the frame, an installation groove is arranged on the workbench, and an automatic riveting device is arranged above the installation groove; a sliding column is slidably connected to one side of the workbench, the sliding column passes through one side of the workbench and is fixedly connected with a connecting plate, a pressing rod is fixedly arranged on the connecting plate, a spring is connected to the bottom of the connecting plate, the bottom of the spring is fixedly connected with a bracket, and the bracket is fixedly connected with the frame; a positioning plate is sleeved outside the pressing rod, a connecting rod is hinged to the top of the pressing rod passing through the positioning plate, two connecting rods I are respectively connected to the two ends of the connecting rod, two connecting rods II are hinged to the two ends of the connecting rod I, a clamping jaw is hinged to the connecting rod II, and a hinge is arranged between the bottom of the clamping jaw and the positioning plate.

[0009] The utility model is further arranged as: the hinged position between the clamping jaw and the connecting rod II is at the middle part of the clamping jaw.

[0010] The utility model is further arranged as: a pressing block is correspondingly arranged above the top of the sliding column.

[0011] The utility model is further arranged as: the automatic riveting device comprises a riveting part, and a fixing plate is arranged between the pressing block and the riveting part.

[0012] The utility model is further arranged as: the installation groove is used for placing a steel plate workpiece.

[0013] The utility model is further arranged as: when the pressing rod moves downwards, the clamping jaws are driven to move towards each other and clamp the workpiece through the connecting rod I and the connecting rod II.

[0014] The utility model is further arranged as: when the pressing rod moves upwards, the clamping jaws open to release the workpiece.

[0015] The utility model is further arranged as: when the pressing rod moves upwards, the clamping jaws open to release the workpiece; when the riveting part moves downwards, it drives the pressing block to move downwards until it abuts against the upper part of the sliding column, and drives the sliding column to move downwards, so that the spring is compressed.

[0016] In summary, the utility model has the following beneficial effects:

[0017] This automatic clamping riveting machine replaces the traditional multi-cylinder drive method with a single drive mechanism, removing the complex air circuit system and multiple control circuits, and significantly reducing the manufacturing cost and maintenance cost of the equipment. The clamping is achieved by a mechanical linkage method, eliminating the cylinder synchronization problem. The synchronization of the jaw movement and the reliability of the clamping force are ensured through the connecting rod mechanism and the spring mechanism. This design realizes the linkage of the riveting and clamping actions, without the need to separately control the clamping device. When the riveting part moves downward, the clamping is automatically triggered, and when it moves upward, it is automatically released, simplifying the operation process. There is no need to re-adjust the parameters of multiple cylinders for different workpieces, greatly reducing the skill requirements for operators. At the same time, the synchronous movement of the jaws ensures uniform force on the workpiece, and the mechanical linkage method provides a stable clamping force, enabling precise positioning of the workpiece and ensuring the riveting quality. These features make the equipment have the advantages of simple structure, low failure rate, convenient operation, high degree of automation, etc., and have strong practical value and promotion value in actual production, and well achieve the goal of reducing costs and debugging costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the embodiment;

[0019] Figure 2 is a left view of the embodiment;

[0020] Figure 3 is a schematic side view structure diagram of the embodiment.

[0021] Reference numerals: 1, frame; 2, workbench; 3, installation groove; 4, automatic riveting device; 5, sliding column; 6, connecting plate; 7, pressure rod; 8, spring; 9, bracket; 10, positioning plate; 11, connecting rod; 12, link one; 13, link two; 14, jaw; 15, pressing block; 16, riveting part; 17, fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0024] In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] As Figure 1 shown, an automatic clamping riveting machine includes a frame 1. A workbench 2 is provided in the middle of the frame 1. An installation groove 3 for placing steel plate workpieces is provided on the workbench 2. An automatic riveting device 4 is provided above the installation groove 3. The automatic riveting device 4 rivets two steel plate workpieces by automatically feeding rivets or a non-rivet pressing method, which is the prior art and will not be elaborated here.

[0027] The core technical solution of this application is as follows:

[0028] As Figure 1 、 Figure 2 、 Figure 3 shown, in order to achieve the purpose of automatically clamping the steel plate workpiece during riveting. A sliding column 5 is slidably connected to one side of the workbench 2 in this application. The sliding column 5 passes through one side of the workbench 2 and is fixedly connected to a connecting plate 6. A pressing rod 7 is fixedly provided on the connecting plate 6. Among them, a spring 8 is connected to the bottom of the connecting plate 6. The bottom of the spring 8 is fixedly connected to a bracket 9. The bracket 9 is fixedly connected to the frame 1.

[0029] A positioning plate 10 is sleeved outside the compression bar 7. The top of the compression bar 7 passes through the positioning plate 10 and is hinged with a connecting rod 11. Both ends of the connecting rod 11 are respectively connected with a first connecting rod 12. Both ends of the first connecting rod 12 are hinged with a second connecting rod 13. The second connecting rod 13 is hinged with a clamping jaw 14. The hinged position between the clamping jaw 14 and the second connecting rod 13 is at the middle of the clamping jaw 14. The bottom of the clamping jaw 14 is hingedly arranged with the positioning plate 10. With the above settings, when the compression bar 7 moves downward, the clamping jaw 14 can be driven to move towards each other and clamp the workpiece through the first connecting rod 12 and the second connecting rod 13. When the compression bar 7 moves upward, the clamping jaw 14 can be opened and no longer clamp the workpiece.

[0030] Correspondingly, a pressing block 15 is correspondingly arranged above the top of the sliding column 5. Correspondingly, the automatic riveting device 4 includes a riveting member 16. Among them, the pressing block 15 and the riveting member 16 are fixedly connected through a fixing plate 17. When the riveting member 16 moves downward, it can drive the pressing block 15 to move downward until it abuts against the upper part of the sliding column 5 and drive the sliding column 5 to move downward. When the sliding column 5 moves downward, the spring 8 is compressed, and the compression bar 7 is driven to move downward, so that the clamping jaw 14 moves towards each other and clamps the workpiece. When the riveting member 16 moves upward, the sliding column 5 is separated from the pressing block 15. Under the action of the spring 8, the sliding column 5 resets, the clamping jaw 14 opens, and the staff can take out the riveted workpiece.

[0031] Through the above settings, the function of clamping and fixing the workpiece during the riveting process can be realized. Stable clamping can be achieved without multiple cylinders, reducing costs. Among them, as Figure 1 The state shown is the state when the riveting member 16 presses down.

[0032] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An automatic rivet clamping machine, characterized in that, Comprising: A frame, in the middle of which a workbench is provided, on which an installation groove is arranged, and an automatic riveting and pressing device is arranged above the installation groove; on one side of the workbench, a sliding column is slidably connected, the sliding column passes through one side of the workbench and is fixedly connected with a connecting plate, a pressing rod is fixedly arranged on the connecting plate, a spring is connected to the bottom of the connecting plate, the bottom of the spring is fixedly connected with a bracket, and the bracket is fixedly connected with the frame; a positioning plate is sleeved outside the pressing rod, the top of the pressing rod passes through the positioning plate and is hinged with a connecting rod, both ends of the connecting rod are respectively connected with a first connecting rod, both ends of the first connecting rod are hinged with a second connecting rod, the second connecting rod is hinged with a clamping jaw, and a hinge is arranged between the bottom of the clamping jaw and the positioning plate.

2. The automatic rivet clamping machine according to claim 1, wherein The hinged position between the clamping jaw and the second connecting rod is at the middle of the clamping jaw.

3. The automatic rivet clamping machine according to claim 1, characterized in that, A pressing block is correspondingly arranged above the top of the sliding column.

4. The automatic rivet clamping machine according to claim 3, characterized in that, The automatic riveting and pressing device includes a riveting and pressing part, and a fixing plate is arranged between the pressing block and the riveting and pressing part.

5. The automatic rivet clamping machine according to claim 1, characterized in that, The installation groove is used for placing steel plate workpieces.

6. The automatic rivet clamping machine according to claim 1, characterized in that, When the pressing rod moves downward, the clamping jaws are driven to move towards each other and clamp the workpiece through the first connecting rod and the second connecting rod.

7. An automatic clamping riveting machine according to claim 1, characterized in that, When the pressing rod moves upward, the clamping jaws open to release the workpiece; when the riveting and pressing part moves downward, it drives the pressing block to move downward until it abuts against the upper part of the sliding column, and drives the sliding column to move downward, compressing the spring.

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