A riveting tool for automobile part machining

Abstract

The utility model discloses a riveting frock for automobile parts machining relates to automobile parts machining technical field, and the utility model discloses a riveting frame is equipped with auxiliary mechanism in the middle part of riveting frame, is used for collecting the waste rivet produced when riveting and positioning the plate of parts, and the auxiliary mechanism includes: positioning assembly includes the receiving station fixedly installed in the lower part of riveting frame, and the application drives driving gear, driven gear transmission through servo motor, and drives the deflection of rotating stand, and through the mutual cooperation of driving groove and limiting block, realizes four sliding rods synchronous and relative movement, and further makes the stable movement of positioning plate along the slide groove, and the centering and fixed of its automobile plate parts, ensures that the plate does not occur wobble in the riveting process, greatly improves the position accuracy and perpendicularity of automobile parts riveting, effectively avoids the riveting bad problem caused by the positioning deviation, guarantees the stability of product processing quality.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a riveting fixture for automotive parts processing. Background Technology

[0002] Riveting is a process that achieves permanent connection of materials through mechanical deformation. It uses rivets or self-piercing methods to fix two or more workpieces (such as metal plates and plastic parts) together. Its core principle is to use external force to deform the rivet or workpiece locally to form a mechanical interlocking structure, thereby resisting tensile and shear forces. In the automotive manufacturing field, riveting is a key component connection process and is widely used in the assembly of structural components such as body frames and chassis components.

[0003] Reference patent document: Patent Publication No. CN 218963856 U, Patent Publication Date 2023-05-05, in particular, a riveting fixture for automotive parts, including a frame, a worktable rotatably mounted on the frame, a control panel mounted on the front side of the worktable, a geared motor mounted on one side of the frame and connected to the worktable, a mounting plate mounted on the frame, a sensing point mechanism provided on the mounting plate and adapted to the worktable, a U-shaped plate slidably mounted on the mounting plate, a mounting seat fixedly mounted on the top of the U-shaped plate and connected to the sensing point mechanism, an adjustment mechanism provided between the U-shaped plate and the mounting plate, the adjustment mechanism including an adjustment groove, a moving hole and an adjustment pin, which is reasonably designed and facilitates the installation of the sensing point mechanism. Through the cooperation of the geared motor and the sensing point mechanism, the worktable can be precisely rotated, thereby facilitating the riveting of parts on both sides.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] Currently, in practical applications, existing automotive sheet metal riveting fixtures often employ fixed clamps or simple manual adjustments for positioning, making it difficult to quickly adapt to parts of different specifications. Furthermore, positioning accuracy is easily affected by human factors, leading to sheet metal misalignment during riveting, resulting in quality issues such as riveting position deviation and insufficient riveting strength. In processes like blind rivet riveting and hammer rivet riveting, the core rod breaks off after being pulled apart, becoming scrap. Similarly, after hammer rivet riveting, the exposed core column separates from the rivet body, also forming scrap. This scrap falls directly onto the processing table after riveting, affecting subsequent workpiece loading and positioning accuracy, potentially entering the processing area, scratching parts surfaces, causing equipment malfunctions, and increasing the frequency and intensity of manual cleaning.

[0006] Therefore, this utility model provides a riveting fixture for processing automotive parts. Utility Model Content

[0007] To address the problems of poor positioning adaptability and lack of centralized waste collection and treatment in current automotive parts riveting fixtures, such as broken core rods of pull / knock rivets falling off and contaminating the processing table, resulting in low riveting accuracy, waste interfering with continuous operation, and increased manual cleaning costs, the purpose of this utility model is to provide a riveting fixture for automotive parts processing.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a riveting fixture for processing automotive parts, comprising a riveting frame, wherein an auxiliary mechanism is provided in the middle of the riveting frame for collecting waste rivets generated during riveting and for positioning the sheet metal parts. The auxiliary mechanism includes:

[0009] The positioning assembly includes a receiving platform fixedly installed at the bottom of the riveting machine frame. A rotating frame is rotatably installed on the lower surface of the receiving platform. Four evenly distributed drive slots are opened at the end of the rotating frame. A sliding rod is provided on the upper part of the rotating frame. A limit block is fixedly installed on one side of the bottom end of each of the four sliding rods. The four limit blocks are slidably locked in the middle of the drive slot. A positioning plate is fixedly installed on one end of each of the four sliding rods. A driven gear is fixedly installed in the middle of the bottom end of the rotating frame. A drive assembly is provided on one side of the driven gear.

[0010] A collection component, located above the positioning component, is used to collect riveting waste generated after riveting.

[0011] Preferably, the collecting assembly includes a cylinder fixedly installed on the upper part of the riveting machine frame, a riveting end slidably provided on one side of the riveting machine frame, the top center of the riveting end fixedly installed on the driving end of the cylinder, a swing frame rotatably installed on one side of the riveting machine frame, a collecting hopper provided at the lower part of the riveting end, one end of the swing frame rotatably installed at the middle of one end of the collecting hopper, a driving rod rotatably installed at the lower part of one side of the riveting end, and the other end of the driving rod rotatably installed at the middle of the swing frame.

[0012] Preferably, the driving assembly includes a base plate fixedly installed on the lower part of the receiving platform, a servo motor fixedly installed on one side of the top of the base plate, a drive gear fixedly installed on the drive end of the servo motor, and the drive gear and the driven gear meshing with each other.

[0013] Preferably, four evenly distributed locking blocks are fixedly installed on the lower surface of the receiving platform, and four sliding rods are slidably locked in the middle of the locking blocks.

[0014] Preferably, the upper part of the receiving platform is provided with four evenly distributed sliding grooves, and the lower parts of the four positioning plates are slidably locked in the middle of the sliding grooves.

[0015] Preferably, a limiting plate is fixedly installed on one side of the collecting hopper to work together to ensure the effective collection of waste materials during the riveting process. Beneficial effects

[0016] This utility model provides a riveting fixture for processing automotive parts. Compared with the prior art, it has the following advantages:

[0017] 1. This application uses a servo motor to drive the active gear and driven gear transmission, which drives the rotating frame to deflect. Through the cooperation of the drive groove and the limit block, the four sliding rods move synchronously and relative to each other, thereby making the positioning plate move stably along the slide groove, aligning and fixing the automotive sheet metal parts, ensuring that the sheet metal will not wobble during the riveting process, greatly improving the positional accuracy and perpendicularity of the riveting of automotive parts, effectively avoiding riveting defects caused by positioning deviations, and ensuring the stability of product processing quality.

[0018] 2. In this application, the riveting end is driven by a cylinder to descend, and the drive rod and swing frame are driven simultaneously to make the collection bucket avoid interference, ensuring that the riveting operation is not disturbed. After the riveting is completed, during the process of the riveting end rising, the collection bucket quickly returns to the waste receiving position, which can receive the waste separated from the riveting end, and avoid the waste falling off and accumulating on the receiving platform, affecting the subsequent workpiece loading and processing, realizing automatic collection and centralized treatment of waste, and reducing the frequency of manual cleaning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the receiving platform of this utility model.

[0021] Figure 3 This is a schematic diagram of the positioning component structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the collection component of this utility model.

[0023] In the diagram: 1. Riveting frame; 2. Auxiliary mechanism; 21. Positioning component; 211. Receiving platform; 212. Base plate; 213. Rotating frame; 2131. Driven gear; 214. Sliding rod; 2141. Locking block; 215. Limiting block; 2151. Drive groove; 216. Positioning plate; 2161. Slide groove; 217. Servo motor; 2171. Drive gear; 22. Collection component; 221. Cylinder; 222. Riveting end; 223. Swing frame; 224. Drive rod; 225. Collection hopper; 226. Limiting plate. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a riveting fixture for processing automotive parts, including a riveting frame 1, with an auxiliary mechanism 2 in the middle of the riveting frame 1 for collecting waste rivets generated during riveting and positioning the part sheet metal. The auxiliary mechanism 2 includes:

[0026] The positioning assembly 21 includes a receiving platform 211 fixedly installed at the lower part of the riveting machine frame 1. A rotating frame 213 is rotatably installed on the lower surface of the receiving platform 211. The end of the rotating frame 213 is provided with four evenly distributed drive grooves 2151. A sliding rod 214 is provided on the upper part of the rotating frame 213. A limit block 215 is fixedly installed on one side of the bottom end of each of the four sliding rods 214. The four limit blocks 215 are slidably locked in the middle of the drive grooves 2151. The limit blocks 215 are slidably locked in the drive grooves 2151 but are not for sliding along the drive grooves 2151. They only serve to be movable and can transmit force at the same time. A positioning plate 216 is fixedly installed on one end of each of the four sliding rods 214. The surface of the positioning plate 216 is provided with an anti-slip rubber layer to enhance the clamping force on the plate. A driven gear 2131 is fixedly installed in the middle of the bottom end of the rotating frame 213. A drive assembly is provided on one side of the driven gear 2131.

[0027] The collecting component 22 is located on top of the positioning component 21 and is used to collect the riveting waste generated after riveting.

[0028] The collecting component 22 includes a cylinder 221 fixedly mounted on the upper part of the riveting machine frame 1. This cylinder 221 is an Airtac SCT series cylinder. During operation, the cylinder 221 is connected to the PLC control system and receives control commands to drive the riveting end 222 to move. When riveting is required, the PLC sends a signal to the cylinder 221, causing the piston rod of the cylinder 221 to extend and rapidly lower the riveting end 222 above the workpiece, completing the riveting action. The riveting action is completed with stable pressure. The riveting end 222 is slidably mounted on one side of the riveting machine frame 1. The top center of the riveting end 222 is fixedly mounted on the drive end of the cylinder 221. A swing frame 223 is rotatably mounted on one side of the riveting machine frame 1. The lower part is provided with a collection hopper 225. One end of the swing frame 223 is rotatably installed in the middle of one end of the collection hopper 225. A drive rod 224 is rotatably installed on the lower side of one side of the riveting end 222. The other end of the drive rod 224 is rotatably installed in the middle of the swing frame 223. The up and down movement of the riveting end 222 drives one end of the drive rod 224 to move up and down, so that the angle of the collection hopper 225 can be adjusted in cooperation with the swing frame 223. Thus, without affecting the riveting of the automotive sheet metal parts by the riveting end 222, the riveting waste generated after riveting can be collected, and the waste material is prevented from falling directly onto the receiving platform 211 after falling off from the end of the riveting end 222, which would affect the riveting connection operation.

[0029] The drive assembly includes a base plate 212 fixedly mounted on the lower part of the receiving platform 211. A servo motor 217 is fixedly mounted on one side of the top of the base plate 212. A drive gear 2171 is fixedly mounted on the drive end of the servo motor 217. The drive gear 2171 and the driven gear 2131 are meshed and connected to each other. The servo motor 217 is a Delta ECMA series servo motor, model ECMA-C20807RS. After the board is manually placed on the receiving platform 211, the sensor signal is triggered, and the PLC controls the servo motor 217 to start, driving the drive gear 2171 to rotate, causing the driven gear 2131 to rotate, thereby driving the rotating frame 213 to rotate.

[0030] Four evenly distributed locking blocks 2141 are fixedly installed on the lower surface of the receiving platform 211. Four sliding rods 214 are slidably locked in the middle of the locking blocks 2141. The locking blocks 2141 can provide support for the sliding rods 214 and guide them to ensure the straightness of the movement of the sliding rods 214.

[0031] The upper part of the receiving platform 211 is provided with four evenly distributed sliding grooves 2161. The lower parts of the four positioning plates 216 are all slidably locked in the middle of the sliding grooves 2161. The sliding grooves 2161 provide guidance for the movement of the positioning plates 216, ensuring that the positioning plates 216 can accurately position and clamp the plate.

[0032] A limiting plate 226 is fixedly installed on one side of the collection hopper 225 to work together to ensure the effective collection of waste materials during the riveting process. By setting the limiting plate 226, it can prevent the waste materials from falling into the collection hopper 225 from flying out from the upper end of the collection hopper 225 due to their bounce.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] During operation, the automotive sheet metal parts to be riveted are placed on the upper surface of the receiving platform 211. Driven by the servo motor 217, the drive gear 2171 rotates, which in turn drives the meshing driven gear 2131 to rotate. This causes the drive rotating frame 213 to deflect. With the cooperation of the drive groove 2151 and the limiting block 215, the four sliding rods 214 are driven synchronously and relative to each other. The limiting block 215 only moves within the drive groove 2151 and does not slide along the drive groove 2151. It only serves to limit and transmit power. This allows the four positioning plates 216 to synchronously move relative to each other along the sliding groove 2161 and thus contact the four base surfaces of the sheet metal for centering. At the same time, the relative movement of the four positioning plates 216 can position and clamp the sheet metal, ensuring that it does not shake during riveting.

[0035] By activating cylinder 221, the riveting end 222 is driven close to the plate for riveting. During descent, the synchronous swing frame 223 limits the collection hopper 225, and its drive rod 224 descends synchronously with the riveting end 222, causing the side of the collection hopper 225 near the riveting end 222 to tilt downwards, moving it away from directly below the riveting end 222, thus enabling the riveting end 222 to be riveted smoothly. After riveting is completed, cylinder 221 reverses its drive to move the riveting end 222 upwards. This will cause one end of the drive rod 224 to move upward. In cooperation with the swing frame 223, the end that was previously deflected downward can be deflected upward, so that one end of the collection bucket 225 can be located below the riveting end 222. This allows the waste material separated from the riveting end 222 after riveting to be collected and allowed to slide down from one side of the collection bucket 225, preventing it from falling directly onto the receiving platform 211 and affecting its continuous operation. At the same time, a collection box can be placed at the other end of the collection bucket 225 to collect the waste material that slides down from the collection bucket 225.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A riveting fixture for processing automotive parts, comprising a riveting frame (1), characterized in that: An auxiliary mechanism (2) is provided in the middle of the riveting frame (1) for collecting waste rivets generated during riveting and for positioning the sheet metal parts. The auxiliary mechanism (2) includes: The positioning assembly (21) includes a receiving platform (211) fixedly installed on the lower part of the riveting machine frame (1). A rotating frame (213) is rotatably installed on the lower surface of the receiving platform (211). Four evenly distributed drive slots (2151) are opened at the end of the rotating frame (213). A sliding rod (214) is provided on the upper part of the rotating frame (213). A limit block (215) is fixedly installed on one side of the bottom end of each of the four sliding rods (214). The four limit blocks (215) are slidably locked in the middle of the drive slots (2151). A positioning plate (216) is fixedly installed on one end of each of the four sliding rods (214). A driven gear (2131) is fixedly installed in the middle of the bottom end of the rotating frame (213). A drive assembly is provided on one side of the driven gear (2131). The collection component (22) is located on the upper part of the positioning component (21) and is used to collect the riveting waste generated after riveting.

2. The riveting fixture for processing automotive parts according to claim 1, characterized in that: The collecting assembly (22) includes a cylinder (221) fixedly installed on the upper part of the riveting frame (1). A riveting end (222) is slidably provided on one side of the riveting frame (1). The top center of the riveting end (222) is fixedly installed on the driving end of the cylinder (221). A swing frame (223) is rotatably installed on one side of the riveting frame (1). A collecting hopper (225) is provided at the lower part of the riveting end (222). One end of the swing frame (223) is rotatably installed at the middle of one end of the collecting hopper (225). A driving rod (224) is rotatably installed at the lower part of one side of the riveting end (222). The other end of the driving rod (224) is rotatably installed at the middle of the swing frame (223).

3. The riveting fixture for processing automotive parts according to claim 1, characterized in that: The drive assembly includes a base plate (212) fixedly installed on the lower part of the receiving platform (211). A servo motor (217) is fixedly installed on one side of the top of the base plate (212). A drive gear (2171) is fixedly installed on the drive end of the servo motor (217). The drive gear (2171) and the driven gear (2131) mesh with each other.

4. The riveting fixture for processing automotive parts according to claim 1, characterized in that: The lower surface of the receiving platform (211) is fixedly equipped with four evenly distributed locking blocks (2141), and four sliding rods (214) are slidably locked in the middle of the locking blocks (2141).

5. The riveting fixture for processing automotive parts according to claim 1, characterized in that: The upper part of the receiving platform (211) is provided with four evenly distributed sliding grooves (2161), and the lower parts of the four positioning plates (216) are slidably locked in the middle of the sliding grooves (2161).

6. The riveting fixture for processing automotive parts according to claim 2, characterized in that: A limiting plate (226) is fixedly installed on one side of the collection hopper (225) to work together to ensure the effective collection of waste materials during the riveting process.

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