Riveting machine for medium-pressure pipe

By designing fixed components and deflection plates, the problem of large workpieces wobbling during riveting was solved, achieving higher riveting quality and efficiency.

CN223888884UActive Publication Date: 2026-02-10NANJING CHUNSHAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520071784.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-02-10
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

During the riveting process of large workpieces, it is difficult for workers to keep the workpiece stable, which can lead to slight deviations in the riveting and affect the quality of the riveting.

Method used

The system employs a fixed assembly, including a micro motor, a rotating shaft, a driving wheel, a driven wheel, a slider, and a deflection plate. The micro motor drives the deflection plate to slide vertically, thus fixing the intermediate pressure tube and preventing wobbling. Elastic protrusions and shims are used to absorb vibration and enhance the fixing effect.

Benefits of technology

It effectively avoids shaking of large workpieces during the riveting process, improving riveting quality and processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipe processing, in particular to a riveting machine for a medium-pressure pipe, which comprises a riveting machine body, a placing table, a micro motor, a fixing component and a deflection plate. A placing table is fixedly mounted on the riveting machine body; a placing table is arranged on the riveting machine body, a driving cavity is formed in the placing table, a micro-motion motor is installed in the driving cavity, the fixing assembly is installed in the driving cavity, a deflection plate is arranged above the fixing assembly, and when the riveting machine body fixes a large workpiece, the micro-motion motor drives the deflection plate to vertically slide through the fixing assembly. And therefore, the large workpiece is prevented from sliding in the riveting process, and the riveting quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to a riveting machine for medium-pressure pipes. Background Technology

[0002] A riveting machine is a new type of riveting equipment developed based on the principle of cold rolling. It refers to mechanical equipment that can rivet items together. This equipment has a compact structure, stable performance, and is convenient and safe to operate. Riveting machines mainly rely on rotation and pressure to complete assembly and are mainly used in occasions where rivets are required. Common types include pneumatic, hydraulic, and electric, as well as single-head and double-head models.

[0003] When the riveting machine is working, the workpiece is placed on the placement table of the riveting machine, and then the rivet is placed in the riveting hole of the workpiece. Then the riveting machine squeezes the rivet by moving vertically downward through the rivet head, thereby completing the riveting of the workpiece.

[0004] However, during the riveting process of large workpieces, workers need to hold the workpiece by hand. During the riveting process, workers cannot keep the large workpiece stable, which causes the workpiece to shake and result in slight deviations in the riveting, thus affecting the riveting quality of the workpiece.

[0005] To address this, existing technology has proposed a riveting machine that changes the production method to automatic riveting nut pulling and insertion using a cylinder pulling and insertion method, which significantly improves production efficiency, saves manpower, and reduces labor intensity, making it suitable for widespread application. However, it still does not solve the problem of large workpieces shaking during processing.

[0006] In view of this, we propose a riveting machine for medium-pressure pipes. Utility Model Content

[0007] The purpose of this invention is to provide a riveting machine for medium-pressure pipes to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A riveting machine for medium-pressure pipes includes a machine body, a placement table, a micro motor, a fixing component, and a deflection plate. The placement table is fixedly mounted on the machine body, and a drive cavity is formed within the placement table. A micro motor is installed within the drive cavity, and the fixing component is installed within the drive cavity. A deflection plate is positioned above the fixing component. When the machine body fixes a large workpiece, the micro motor drives the deflection plate to slide vertically downwards through the fixing component. This vertical downward sliding of the deflection plate fixes the medium-pressure pipe, preventing it from shaking during the riveting process and thus affecting the riveting effect.

[0010] Preferably, the fixing assembly includes a rotating shaft, a driving wheel, a driven wheel, a drive shaft, a slider, and a fixed rack; the rotating shaft is fixedly connected to a micro motor, and driving wheels are symmetrically arranged on the rotating shaft; there are two driving wheels, symmetrically arranged in the drive cavity, and both driving wheels mesh with the driven wheel. The micro motor rotates, thereby driving the rotating shaft to rotate synchronously. When the rotating shaft rotates, it drives the two driving wheels to rotate synchronously. The rotating driving wheels mesh with the driven wheels, thereby driving the driven wheels to rotate. Since the driving wheels and driven wheels are arranged perpendicularly, the direction of rotation is reversed; a drive shaft is fixedly installed on the driven wheel; the drive shaft is rotatably installed in the drive cavity, and the drive shaft is threaded; a slider is slidably installed on the drive shaft. The slider has a helical groove that mates with the drive shaft, and a groove on the slider. A deflection plate is rotatably mounted in the groove. The rear end of the deflection plate has gear teeth. The fixed rack is fixedly installed in the drive cavity. The fixed rack meshes with the deflection plate. The driven wheel rotates, driving the drive shaft to rotate synchronously. When the drive shaft rotates, it squeezes the helical groove on the slider through its threads, thereby pushing the slider to slide vertically downward. The slider drives the deflection plate to move vertically downward. During the process of moving vertically downward, the deflection plate contacts the fixed rack in the drive cavity and deflects 90°, changing the deflection plate from a vertical state to a horizontal state. Then the deflection plate continues to follow the slider to move vertically downward until it contacts the intermediate pressure pipe and fixes the intermediate pressure pipe.

[0011] Preferably, the drive cavity is provided with a limiting groove, and the drive shaft is provided with a limiting block. The cooperation between the limiting groove and the limiting block is used to fix and limit the rotating shaft to ensure the stable rotation of the rotating shaft. At the same time, the driven wheel is fixed by the rotating shaft to ensure the stability of the meshing.

[0012] Preferably, the deflection plate is provided with an elastic protrusion, and the groove is provided with a sliding groove that cooperates with it. The cooperation between the elastic protrusion and the sliding groove allows the deflection plate to gradually increase the force exerted by the slider on the deflection plate when it rotates forward.

[0013] Preferably, the deflection plate is provided with an elastic pad, which can absorb the vibration generated during riveting, thereby ensuring the stability of the riveting machine during the riveting process and improving the riveting quality.

[0014] Preferably, the elastic pad is provided with friction texture, which is used to enhance the contact force between the deflection plate and the medium pressure pipe, thereby ensuring the fixing effect of the deflection plate on the medium pressure pipe and improving the riveting quality of the riveting machine body.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this utility model achieves the fixation of large workpieces through fixing components, thereby avoiding the slippage of large workpieces during riveting, which affects the riveting effect and improves the riveting quality and processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified view of point A;

[0018] Figure 3 This is a schematic diagram of the fixing component of this utility model;

[0019] Figure 4 This is a half-sectional schematic diagram of the slider of this utility model;

[0020] Figure 5 This is a cross-sectional view of the deflection plate of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified view of point B.

[0022] In the picture:

[0023] 1. Riveting machine body;

[0024] 2. Placement platform; 21. Drive cavity; 211. Limiting groove;

[0025] 3. Micro motor;

[0026] 4. Fixed component; 41. Rotating shaft; 42. Driving wheel; 43. Driven wheel; 44. Drive shaft; 441. Limit block; 45. Slider; 451. Groove; 4511. Slide groove; 46. Fixed rack;

[0027] 5. Deflection plate; 51. Elastic bump. Detailed Implementation

[0028] 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.

[0029] like Figures 1 to 6As shown, a medium-pressure pipe riveting machine includes a riveting machine body 1, a placement table 2, a micro motor 3, a fixing component 4, and a deflection plate 5. The placement table 2 is fixedly installed on the riveting machine body 1. When the riveting machine body 1 is working, the medium-pressure pipe is placed on the placement table 2, the riveting hole of the medium-pressure pipe is aligned with the mounting hole on the placement table 2, and then a rivet is inserted. The riveting machine body 1 presses down to squeeze the rivet, completing the welding of the medium-pressure pipe. A drive cavity 21 is opened in the placement table 21, and the micro motor 3 is installed in the drive cavity 21. The fixing component 4 is installed in the drive cavity 21, and the deflection plate 5 is provided above the fixing component 4. When the riveting machine body 1 fixes a large workpiece, the micro motor 3 drives the deflection plate 5 to slide vertically through the fixing component 4. The deflection plate 5 slides vertically downward to fix the medium-pressure pipe, preventing the medium-pressure pipe from shaking during the riveting process, which would affect the riveting effect.

[0030] The rotating shaft 41 is fixedly connected to the micro motor 3. Two drive wheels 42 are symmetrically arranged on the rotating shaft 41 within the drive cavity 21. Both drive wheels 42 mesh with driven wheels 43. The rotation of the micro motor 3 drives the rotating shaft 41 to rotate synchronously. When the rotating shaft 41 rotates, it drives the two drive wheels 42 to rotate synchronously. The rotation of the drive wheels 42 meshes with the driven wheels 43, thus driving the driven wheels 43 to rotate. Since the drive wheels 42 and driven wheels 43 are arranged perpendicularly... This enables the reversal of rotation; a drive shaft 44 is fixedly mounted on the driven wheel 43; the drive shaft 44 is rotatably mounted to the drive cavity 21, the drive cavity 21 is provided with a limiting groove 211, and the drive shaft 44 is provided with a limiting block 441. The cooperation between the limiting groove 211 and the limiting block 441 is used to fix and limit the rotation of the shaft 41, ensuring the stable rotation of the shaft 41. At the same time, the driven wheel 43 is fixed by the shaft 41 to ensure the stability of the meshing; the drive shaft 44 is provided with threads; the drive shaft A slider 45 is slidably mounted on the drive shaft 44; the slider 45 has a helical groove that mates with the drive shaft 44, and a groove 451 is also provided on the slider 45. A deflector plate 5 is rotatably mounted in the groove 451; the rear end of the deflector plate 5 has gear teeth; a fixed rack 46 is fixedly mounted in the drive cavity 21, and the fixed rack 46 meshes with the deflector plate 5. The driven wheel 43 rotates, driving the drive shaft 44 to rotate synchronously. When the drive shaft 44 rotates, it squeezes the helical groove on the slider 45 through its threads, thereby pushing the drive shaft 44. The slider 45 slides vertically downwards, causing the deflection plate 5 to move vertically downwards. During the vertical downward movement, the deflection plate 5 contacts the fixed rack 46 in the drive cavity 21 and deflects 90°, changing from a vertical to a horizontal state. Then, the deflection plate 5 continues to follow the slider 45 vertically downwards until it contacts the intermediate pressure tube and fixes it. The deflection plate 5 is in a vertical state to avoid affecting the placement of the intermediate pressure tube. Then, under the action of the fixed rack 46, it becomes a vertical state to fix the intermediate pressure tube.

[0031] The deflection plate 5 is provided with an elastic protrusion 51, and the groove 451 is provided with a sliding groove 4511 that cooperates with it. The cooperation between the elastic protrusion 51 and the sliding groove 4511 allows the deflection plate 5 to gradually increase the force exerted by the slider 45 on the deflection plate 5 when it rotates forward. The deflection plate 5 is provided with an elastic washer, which can absorb the vibration generated during riveting, thereby ensuring the stability of the riveting machine during the riveting process and improving the riveting quality. The elastic washer is provided with friction texture, which is used to enhance the contact force between the deflection plate 5 and the medium pressure pipe, thereby ensuring the fixing effect of the deflection plate 5 on the medium pressure pipe and improving the riveting quality of the riveting machine body 1.

[0032] In this embodiment, when using the medium-pressure pipe riveting machine, the operator places the medium-pressure pipe on the placement platform 2, aligning the riveting holes on the medium-pressure pipe with the mounting holes on the placement platform 2. Then, the micro motor 3 is started, which drives the rotating shaft 41 to rotate. When the rotating shaft 41 rotates, it drives the driving wheel 42 to rotate synchronously. The rotating driving wheel 42 meshes with the driven wheel 43, driving the driven wheel 43 to rotate. The driven wheel 43 drives the drive shaft 44 to rotate synchronously. When the drive shaft 44 rotates, it presses the threaded groove on the slider 45 through the thread, thereby driving the slider 45 to slide vertically downward. The slider 45 drives the deflection plate 5 to slide downward synchronously. The deflection plate 5 meshes with the fixed rack 46, and the fixed rack 46 drives the deflection plate 5 to deflect 90°. The slider 45 continues to drive the deflection plate 5 to move vertically downward. The deflection plate 5 contacts the medium-pressure pipe and fixes the medium-pressure pipe. The micro motor 3 then stops rotating.

[0033] When the riveting is finished, the micro motor 3 reverses and drives the rotating shaft 41 to reverse, the rotating shaft 41 drives the driving wheel 42 to reverse, the driving wheel 42 drives the driven wheel 43 to reverse, the driven wheel 43 drives the drive shaft 44 to reverse, the drive shaft 44 pushes the slider 45 to move vertically upward, the slider 45 drives the deflection plate 5 to move vertically upward to loosen the fixation of the central pressure tube, when the deflection plate 5 moves to mesh with the fixed rack 46, the fixed rack 46 drives the deflection plate 5 to reverse and reset.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A riveting machine for medium-pressure pipes, characterized in that: It includes a riveting machine body (1), a placement table (2), a micro motor (3), a fixing assembly (4), and a deflection plate (5); A placement platform (2) is fixedly installed on the riveting machine body (1); The placement platform (2) has a drive cavity (21) inside, and a micro motor (3) is installed inside the drive cavity (21). The fixing component (4) is installed inside the drive cavity (21), and a deflection plate (5) is provided above the fixing component (4). When the riveting machine body (1) fixes a large workpiece, the micro motor (3) drives the deflection plate (5) to slide vertically through the fixing component (4).

2. The riveting machine according to claim 1, characterized in that: The fixing component (4) includes a rotating shaft (41), a driving wheel (42), a driven wheel (43), a drive shaft (44), a slider (45), and a fixed rack (46); The rotating shaft (41) is fixedly connected to the micro motor (3), and the rotating shaft (41) is symmetrically arranged with drive wheels (42); There are two driving wheels (42), and both driving wheels (42) mesh with driven wheels (43). A drive shaft (44) is fixedly installed on the driven wheel (43). The drive shaft (44) is rotatably mounted to the drive cavity (21), and the drive shaft (44) is provided with threads; a slider (45) is slidably mounted on the drive shaft (44); The slider (45) has a spiral groove that cooperates with the drive shaft (44), and the slider (45) has a groove (451) in which a deflection plate (5) is rotatably installed; The deflection plate (5) has gear teeth at its rear end; The fixed rack (46) is fixedly installed in the drive cavity (21), and the fixed rack (46) meshes with the deflection plate (5).

3. The riveting machine according to claim 2, characterized in that: The drive cavity (21) is provided with a limiting groove (211), and the drive shaft (44) is provided with a limiting block (441).

4. The riveting machine according to claim 2, characterized in that: The deflection plate (5) is provided with an elastic protrusion (51), and the groove (451) is provided with a sliding groove (4511) that cooperates with it.

5. The riveting machine according to claim 4, characterized in that: The deflection plate (5) is provided with an elastic pad.

6. The riveting machine according to claim 5, characterized in that: The elastic pad has friction texture.