Automatic riveting press for positioning pins

Abstract

The utility model discloses an automatic riveting press for positioning pins. The automatic riveting press comprises a material distributing assembly, a material pressing assembly, an X-axis module, a Y-axis module and a Z-axis module, wherein every two of the X-axis module, the Y-axis module and the Z-axis module are perpendicular to each other. The material distributing assembly and the material pressing assembly are arranged on the side, close to the X-axis module, of the Z-axis module, the material distributing assembly and the material pressing assembly are both connected with the Z-axis module in a sliding mode, and encoders are arranged on the X-axis module, the Y-axis module and the Z-axis module and connected with an external computer. The utility model solves the problems that the riveting position is easy to deviate, the efficiency is low, the position and the depth of the pin need to be manually and frequently adjusted, and the reject ratio is high because the sizes of the pins are not uniform in the conventional riveting machine.

Description

Technical Field

[0001] This utility model belongs to the field of riveting technology, specifically relating to an automatic riveting machine for positioning pins. Background Technology

[0002] As the manufacturing industry continuously demands higher product precision and production efficiency, traditional riveting processes are no longer sufficient to meet the demands of demanding production scenarios. Due to the inherent characteristics of die-casting materials (such as shrinkage ratio) and unavoidable errors during production (such as mold deformation and uneven cooling), the actual dimensions of each batch or individual product will have certain tolerances. Traditional riveting machines require pre-adjustment of the position, but due to dimensional deviations in each product, riveting position misalignment is prone to occur, leading to misaligned or skewed pin installation. Correcting the position requires frequent equipment adjustments, which is both time-consuming and affects production efficiency. When using semi-automatic riveting machines manually, inconsistent pin dimensions (such as different diameters and lengths) make it difficult to maintain consistent riveting depth, resulting in unstable connection quality. Frequent manual adjustments to the pin position and depth are required, consuming a significant amount of time and resulting in a high defect rate. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an automatic riveting machine for positioning pins, which solves the problems of existing riveting machines, such as the easy displacement of the riveting position due to inconsistent pin sizes, low efficiency, the need for frequent manual adjustment of the pin position and depth, and high defect rate.

[0004] The technical solution of this utility model is: This utility model provides an automatic riveting machine for positioning pins, including: a material distribution component, a material pressing component, and two mutually perpendicular X-axis modules, Y-axis modules and Z-axis modules;

[0005] The material distribution component and the material pressing component are located on the side of the Z-axis module near the X-axis module. Both the material distribution component and the material pressing component are slidably connected to the Z-axis module. The X-axis module, Y-axis module and Z-axis module are all equipped with encoders that are connected to an external computer.

[0006] Furthermore, the material distribution assembly includes a positioning block, a pushing block, and a pushing cylinder movably connected to the pushing block. The positioning block has a groove on one side near the pushing block, and the pushing block is slidably connected to the positioning block through the groove. The positioning block has a feed inlet and a pressing hole. The pushing block has a set of through holes at one end near the feed inlet. The pushing cylinder is detachably connected to the positioning block, and the pushing cylinder is perpendicular to the side wall of the positioning block near the pushing block.

[0007] Furthermore, the pressing assembly includes a pressing cylinder and a pressing block movably connected to the pressing cylinder. The bottom of the pressing block is provided with a set of pressing rods, which pass through the pressing holes on the positioning block.

[0008] Furthermore, the positioning block has a set of positioning holes on the side near the pressure block, and the pressure block has a set of positioning rods on the side near the positioning holes. The positioning rods pass through the positioning holes, and a buffer is sleeved on the positioning rods.

[0009] Furthermore, the top of the pusher block is provided with a stepped boss, and each horizontal surface of the stepped boss is provided with a through hole, and the cross-section of the groove is the same as the cross-section of the pusher block.

[0010] Furthermore, the material distribution assembly also includes a vibratory feeder, the discharge port of which is connected to the inlet of the positioning block via a pipe.

[0011] Furthermore, the Y-axis module includes: a base and a first slide rail and a second slide rail slidably connected to the base. One end of the first slide rail is provided with a Y-axis motor, and the second slide rail is provided with a plurality of slide blocks. The base is slidably connected to the second slide rail through the slide blocks.

[0012] Furthermore, the Z-axis module is slidably connected to the X-axis module, and the X-axis module includes a third slide rail and an X-axis motor, with the X-axis motor located at one end of the third slide rail.

[0013] Furthermore, the Z-axis module includes a Z-axis motor, which is movably connected to the end of the pressing cylinder away from the pressing block.

[0014] Furthermore, the automatic riveting machine for positioning pins also includes a camera assembly, which includes a camera and a lead screw movably connected to the camera. The camera is parallel to the pressing cylinder, and the lens of the camera is positioned facing one side of the pressing block.

[0015] The beneficial effects of this utility model are as follows: The X, Y, and Z axis modules of the automatic riveting machine for positioning pins provided by this utility model are arranged perpendicularly to each other, enabling the equipment to move flexibly in three-dimensional space. It can adapt to the riveting requirements of different products and pin positions, without the need to readjust the equipment position for each product. It is suitable for die-cast products of various sizes and shapes. The X, Y, and Z axis modules are all equipped with encoders and connected to an external computer to form a closed-loop control system, ensuring accurate positioning and achieving high-precision riveting. The encoders provide real-time feedback on the position information of the three-axis movement. Combined with the computing power of the computer, the pin positioning deviation can be dynamically corrected. The material distribution component and the pressure component are both connected to the Z axis module, which can complete the pin distribution and riveting operations on the same working path, reducing auxiliary action time and improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This application provides a schematic diagram of an automatic riveting machine for positioning pins.

[0018] Figure 2 This application provides a schematic diagram of a partial structure of an automatic riveting machine for positioning pins.

[0019] Figure 3 for Figure 1 Schematic diagram of the material distribution assembly, the material pressing assembly, and the camera assembly;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the material distribution assembly and the material pressing assembly;

[0021] Figure 5 for Figure 3 Schematic diagram of the structure of the pusher block;

[0022] Figure 6 for Figure 1 A schematic diagram of the structure of the Y-axis module.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Material distribution assembly, 2-Material pressing assembly, 3-Y-axis module, 4-X-axis module, 5-Z-axis module, 6-Camera assembly;

[0025] 11-Pushing block, 12-Pushing cylinder, 13-Positioning block, 14-Vibrating plate, 15-Pipe, 21-Pressure block, 22-Pressure cylinder, 23-Pressure rod, 24-Positioning rod, 31-Base, 32-First slide rail, 33-Second slide rail, 34-Y-axis motor, 35-Slide seat, 41-X-axis motor, 42-Third slide rail, 51-Z-axis motor;

[0026] 111-Through hole, 131-Groove, 132-Pressure hole. Detailed Implementation

[0027] 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.

[0028] In this invention, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0029] The implementation of this utility model will be described in detail below with reference to the specific accompanying drawings:

[0030] Figure 1 This application provides a schematic diagram of an automatic riveting machine for positioning pins; as shown in the embodiments of this application. Figure 1 As shown, the automatic positioning pin riveting machine includes a material distribution assembly 1, a material pressing assembly 2, an X-axis module 4, a Y-axis module 3, a Z-axis module 5, and a camera assembly 6. The material distribution assembly 1, the material pressing assembly 2, and the camera assembly 6 are all detachably connected to the Z-axis module 6. The Z-axis module 6 is slidably connected to the X-axis module 4. The X-axis module 4, the Y-axis module 3, and the Z-axis module 6 are perpendicular to each other. The material distribution assembly 1 is perpendicularly connected to the material pressing assembly 2, and the camera assembly 6 is parallel to the material pressing assembly 2. The camera takes pictures of the positioning pin holes using a CCD camera, corrects the riveting position, and improves accuracy.

[0031] Figure 2 This is a schematic diagram of a partial structure of an automatic riveting machine for positioning pins provided in an embodiment of this application. Figure 3 for Figure 1 Schematic diagram of the structure of the material distribution assembly, the pressing assembly, and the camera assembly. Figure 4 for Figure 3 Schematic diagram of the structure of the material distribution assembly and the pressing assembly, combined with Figures 2 to 4 The material distribution assembly 1 includes a pusher block 11, a pusher cylinder 12, a positioning block 13, a vibrating plate 14, and a pipe 15. The positioning block 13 has a groove 131 on the side near the pusher block 11, and the pusher block 11 is slidably connected to the positioning block 13 through the groove 131. Figure 5 for Figure 3 A schematic diagram of the pusher block structure shows that the upper surface of the pusher block 11 has stepped bosses.

[0032] The lower surface is flat, and each horizontal surface of the step has a set of through holes 111 for placing the pins to be riveted, which can accommodate pins of different specifications and lengths. The positioning block 13 has a feed port, and the vibratory feeder 14 has a discharge port. The discharge port and the feed port are connected by a pipe 15 to transport the required pins. Then, the pins enter the through holes of the pusher block 11 from the feed port. The pusher cylinder 12 is connected to the end of the pusher block 11 away from the positioning block 13. Both the pusher cylinder 12 and the pusher block 11 are set perpendicular to the positioning block 13. The pusher cylinder 12 pushes the pusher block 11 to slide in the groove 131, pushing the rivet to the pressing position. In this embodiment, the vibratory feeder 14 includes three sets of vibratory feeders, which correspond to three different specifications of rivets. Then, the pins enter the three through holes on the stepped boss of the pusher block 11 through three pipes, completing the material distribution and transportation of the pins. The feeding assembly, through the linkage of the pusher block and the pusher cylinder, can quickly and accurately deliver the positioning pins to the working position of the pressing assembly, reducing manual intervention and significantly improving production efficiency. The design of the feed port, groove, and through hole ensures the continuity of pin feeding, avoids feeding interruptions, and improves the operating efficiency of the equipment.

[0033] like Figure 3 As shown, the pressing assembly 2 includes a pressing block 21, a pressing cylinder 22, a pressing rod 23, and a positioning rod 24. The pressing block 21 is positioned above the positioning block 13. The bottom of the pressing block 21, near the positioning block 13, also has a pressing rod 23 and a positioning rod 24. The positioning rod 24 is connected to the positioning block 13 and is fitted with a buffer spring. The positioning block 13 also has a pressing hole 132, which corresponds to the through hole 111 of the push block 11, allowing for the riveting of rivets of various diameters. The pressing hole 132 penetrates the positioning block 13. During the pressing process, the through hole 111 of the push block 13 aligns with the pressing hole of the positioning block 13. The pressing cylinder 22 pushes the pressing rod 23 downwards through the pressing hole 132, pressing the rivet onto the surface to be riveted. The pressing hole on the positioning block ensures that the rivet is accurately positioned before riveting, preventing misalignment or inconsistent depth due to deviation. The tight fit between the pressure bar and the pressure hole ensures that the pin remains in the correct position during the riveting process, improving riveting accuracy and meeting high-precision assembly requirements.

[0034] like Figure 4 As shown, camera assembly 6 includes camera 61 and lead screw 62. Camera 61 is slidably connected to lead screw 62. The lens of camera 61 is positioned near the positioning block 13, and a ring of lights is provided on the lens for illumination. A CCD camera is used to photograph the positioning pin hole and correct the riveting position, thereby improving the riveting accuracy.

[0035] Figure 6 for Figure 1 A schematic diagram of the structure of the Y-axis module is shown below. Figure 6As shown, the Y-axis module 3 includes a base 31, a first slide rail 32, a second slide rail 33, a slide block 35, and a Y-axis motor 34. The first slide rail 32 and the second slide rail 33 are arranged parallel to each other. The base 31 is slidably connected to the first slide rail 32 and the second slide rail 33. The Y-axis motor 34 is provided at one end of the first slide rail 32. The base 31 is used to fix the workpiece to be riveted. The second slide rail 33 is slidably connected to several sets of slide blocks 35. The slide blocks 35 are provided on the lower surface of the base 31. The base 31 and the slide blocks 35 are detachably connected. The base 31 is slidably connected to the second slide rail 32 through the slide blocks 35 to distribute the pressure during the riveting process and avoid excessive pressure concentration.

[0036] like Figure 2 As shown, the X-axis module 4 includes an X-axis motor 41 and a third slide rail 42, and the Z-axis module includes a Z-axis motor 51. The X-axis motor 41 is fixed to one end of the third slide rail 42, and the Z-axis motor 51 is movably connected to the pressure cylinder 22, controlling the position of the pressure assembly 2 and the push assembly 1 on the Z-axis. A suitable riveting distance is selected according to the surface of the workpiece to be riveted, adapting to various different workpieces for riveting. Each of the X-axis motor 41, Y-axis motor 34, and Z-axis motor 51 is equipped with an encoder to provide real-time feedback on the position of the pressure assembly. Each encoder is connected to an external PC, where programming is performed to define the motion range and zero point of the three-axis module, ensuring a safe motion path. Coordinate calibration is performed on the CCD camera and the pressure rod to establish a mapping relationship between camera pixels and actual physical dimensions, controlling the XYZ three-axis module to move the pressure assembly to the corrected pin hole position for riveting.

[0037] Obviously, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0038] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An automatic riveting machine for positioning pins, characterized in that, include: Material distribution assembly, material pressing assembly, two mutually perpendicular X-axis modules, Y-axis module and Z-axis module; The material distribution component and the material pressing component are located on the side of the Z-axis module near the X-axis module. Both the material distribution component and the material pressing component are slidably connected to the Z-axis module. The X-axis module, Y-axis module and Z-axis module are all equipped with encoders that are connected to an external computer.

2. The automatic riveting machine for positioning pins as described in claim 1, characterized in that, The material distribution assembly includes a positioning block, a pushing block, and a pushing cylinder movably connected to the pushing block. The positioning block has a groove on the side near the pushing block, and the pushing block is slidably connected to the positioning block through the groove. The positioning block has a feed inlet and a pressing hole. The pushing block has a set of through holes at the end near the feed inlet. The pushing cylinder is detachably connected to the positioning block, and the pushing cylinder is perpendicular to the side wall of the positioning block near the pushing block.

3. The automatic riveting machine for positioning pins as described in claim 2, characterized in that, The pressing assembly includes a pressing cylinder and a pressing block movably connected to the pressing cylinder. The bottom of the pressing block is provided with a set of pressing rods, which pass through the pressing holes on the positioning block.

4. The automatic riveting machine for positioning pins as described in claim 3, characterized in that, The positioning block has a set of positioning holes on the side near the pressure block, and the pressure block has a set of positioning rods on the side near the positioning holes. The positioning rods pass through the positioning holes, and a buffer is sleeved on the positioning rods.

5. The automatic riveting machine for positioning pins as described in claim 4, characterized in that, The pusher block has a stepped protrusion on its top, and each horizontal surface of the stepped protrusion has a through hole. The groove has the same cross-section as the pusher block.

6. The automatic riveting machine for positioning pins as described in claim 4, characterized in that, The material distribution assembly also includes a vibratory feeder, the discharge port of which is connected to the inlet of the positioning block via a pipe.

7. The automatic riveting machine for positioning pins as described in claim 3, characterized in that, The Y-axis module includes: a base and a first slide rail and a second slide rail slidably connected to the base. A Y-axis motor is provided at one end of the first slide rail, and a plurality of slide blocks are provided on the second slide rail. The base is slidably connected to the second slide rail through the slide blocks.

8. The automatic riveting machine for positioning pins as described in claim 7, characterized in that, The Z-axis module is slidably connected to the X-axis module. The X-axis module includes a third slide rail and an X-axis motor, with the X-axis motor located at one end of the third slide rail.

9. The automatic riveting machine for positioning pins as described in claim 8, characterized in that, The Z-axis module includes a Z-axis motor, which is movably connected to the end of the pressing cylinder away from the pressing block.

10. An automatic riveting machine for positioning pins as described in claim 4, characterized in that, The automatic riveting machine for positioning pins also includes a camera assembly, which includes a camera and a lead screw movably connected to the camera. The camera is parallel to the pressing cylinder, and the lens of the camera is positioned facing one side of the pressing block.

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