阅读说明：本技术 一种固定式多工位大喉深自冲铆接机c型框架装置 (Fixed multi-station C-shaped frame device of large throat depth self-piercing riveting machine ) 是由 张永超 黄志超 陈嘉伟 张玉宽 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种固定式多工位大喉深自冲铆接机C型框架装置,其特征在于,C型框架上下臂伸长,上臂上表面向下穿沉孔与通孔,形成沿上臂长度方向轨道,与导轨移动滑块配合安装；上臂一侧加工刻度标尺,便于确定滑块移动位置；导轨移动滑块整体为L形,内侧有圆柱结构,并由上表面向下加工通孔,与便携式自冲铆接机配合安装,外侧加工螺纹孔,与丝杠配合安装；C型框架上臂末端安装带螺纹孔固定块,与双向丝杠末端配合安装；另一端安装带螺纹孔固定块,并内置深沟球轴承；C型框架下臂加工若干个通孔,与凹模安装台配合,放置模具。本发明具有结构简单、模具可变、定位准确、可多工位连续铆接等优点,适用于大尺寸薄壁板材的连续自冲铆接。(The invention discloses a C-shaped frame device of a fixed multi-station large throat depth self-piercing riveting machine, which is characterized in that an upper arm and a lower arm of the C-shaped frame extend, a counter bore and a through hole penetrate through the upper surface of the upper arm downwards to form a track along the length direction of the upper arm, and the track is matched with a guide rail moving slide block for installation; a scale is processed on one side of the upper arm, so that the moving position of the sliding block can be conveniently determined; the guide rail moving slide block is L-shaped as a whole, the inner side of the guide rail moving slide block is provided with a cylindrical structure, a through hole is formed in the upper surface of the guide rail moving slide block downwards and is installed in a matched mode with the portable self-piercing riveting machine, and a threaded hole is formed in the outer side of the guide rail moving slide block and is installed in a matched mode with the lead screw; the tail end of the upper arm of the C-shaped frame is provided with a fixing block with a threaded hole, and the fixing block is matched with the tail end of the bidirectional screw rod; the other end is provided with a threaded hole fixing block and a deep groove ball bearing is arranged in the threaded hole fixing block; and a plurality of through holes are processed on the lower arm of the C-shaped frame, and the C-shaped frame is matched with the female die mounting table to place a die. The invention has the advantages of simple structure, variable die, accurate positioning, multi-station continuous riveting and the like, and is suitable for continuous self-piercing riveting of large-size thin-wall plates.)

1. The utility model provides a big throat of fixed multistation is dark from punching riveter C type frame device which characterized in that includes: the device comprises a tail end fixing block (1), a guide rail moving slide block (2), a starting end fixing block (3), a hexagon screw (4), a motor (5), a C-shaped frame (6), a bidirectional screw rod (7), a deep groove ball bearing (8), a female die mounting table (9) and a female die (10). C type frame (6) upper and lower arm extends, and upper arm upper surface wears counter bore and through-hole downwards, is the non-round hole, forms along upper arm length direction track, moves the slider cooperation installation with the guide rail, and upper arm one side processing scale is convenient for confirm slider shift position to process 12 screw holes, pass through hexagon head screw (4) with terminal fixed block (1), initiating terminal fixed block (3), motor (5) and be connected. The main body of the guide rail moving slide block (2) is L-shaped, a cylinder is processed on the inner side of the guide rail moving slide block, a round hole (through hole) is processed downwards from the upper surface of the guide rail moving slide block and is matched with the portable self-punching riveting machine for installation, and a threaded hole is processed on the outer side of the guide rail moving slide block and is matched with the bidirectional lead screw (7) for installation. The tail end fixing block (1) and the starting end fixing block (3) are both in a convex structure, a threaded hole is machined in the tail end fixing block (1), and a deep groove ball bearing (8) is arranged in the starting end fixing block (3) and matched with the bidirectional lead screw (7). The motor (5) is arranged on one side of the C-shaped frame (6) and provides power. A plurality of through holes are processed on the lower arm of the C-shaped frame (6) and are matched with the female die mounting table (9) to place the female die (10). Firstly, a guide rail moving slide block (2) is placed in a guide rail on the upper arm of a C-shaped frame (6), then a bidirectional screw rod (7) is matched and installed with a deep groove ball bearing (8) arranged in a starting end fixing block (3), then the bidirectional screw rod is sequentially screwed into threaded holes of a motor (5), the guide rail moving slide block (2) and a tail end fixing block (1), and all the parts are installed and fixed on the C-shaped frame (6) through hexagonal head screws (4). Before large-size plates are connected, a portable self-punching riveting machine is firstly arranged in holes of a guide rail moving slide block (2) for locking, female dies (10) with different parameters are arranged in holes of a series of die mounting tables (9) of a lower arm of a C-shaped frame (6), and then the plates are moved to corresponding positions. The motor (5) is started, and the bidirectional screw rod (7) is driven to rotate through the transmission mechanism, so that the guide rail moving slide block (2) can move bidirectionally along the length direction of the upper arm of the C-shaped frame (6). According to the scale on one side of the upper arm, the guide rail moving slide block (2) can be accurately moved to corresponding points of the five female die installation tables (9), so that the punch and the female die (10) of the portable self-piercing riveting machine are completely centered, and the stable and continuous riveting of the plate is completed.

2. The fixed multi-station large throat depth self-piercing riveter C-shaped frame device according to claim 1, characterized in that: counter bores and through holes are downwards penetrated through the upper surface of the upper arm of the C-shaped frame (6) to form a track along the length direction of the upper arm, a scale is machined on one side of the upper arm, 12 threaded holes are machined, and a plurality of through holes are machined in the lower arm.

3. The fixed multi-station large throat depth self-piercing riveter C-shaped frame device according to claim 1, characterized in that: the main body of the guide rail moving slide block (2) is L-shaped, a cylinder is processed on the inner side, a round hole (through hole) is processed downwards from the upper surface, and a threaded hole is processed on the outer side.

4. The fixed multi-station large throat depth self-piercing riveter C-shaped frame device according to claim 1, characterized in that: the tail end fixing block (1) and the starting end fixing block (3) are both in a convex shape, a threaded hole is machined in the tail end fixing block (1), and a deep groove ball bearing (8) is arranged in the starting end fixing block (3).

5. The fixed multi-station large throat depth self-piercing riveter C-shaped frame device according to claim 1, characterized in that: the motor (5) is arranged on one side of the C-shaped frame (6) and provides power.

6. The fixed multi-station large throat depth self-piercing riveter C-shaped frame device according to claim 1, characterized in that: the number of the female die mounting tables (9) is 5, the cylindrical part at the lower end is arranged in a circular hole of the lower arm of the C-shaped frame (6), and the female die (10) is arranged in a counter bore at the upper end of the female die mounting table (9).

7. The fixed multi-station large throat depth self-piercing riveter C-shaped frame device according to claim 1, characterized in that: the standard part of the hexagon head screw (4) used by the device, the tail end fixing block (1), the guide rail moving slide block (2), the starting end fixing block (3), the C-shaped frame (6) and the female die mounting table (9) are made of low-carbon steel materials.

Technical Field

The invention belongs to the technical field of mechanical manufacturing equipment, and relates to a C-shaped frame device of a fixed multi-station large throat depth self-piercing riveting machine.

Background

Vehicle manufacturing and transportation are important components of national economy, but energy consumption, environmental pollution and safety are increasingly serious, and the key technology for solving the problems is the light weight of the vehicle, so that the active application of various novel light weight materials and connection technologies in vehicle design and manufacturing is particularly important. With the rapid development of material processing and forming technologies, more and more lightweight metal materials such as ultrahigh-strength steel, aluminum alloy, titanium alloy, magnesium alloy and the like are increasingly widely applied to vehicle body manufacturing. However, when these lightweight metal materials are joined, there are many problems that are difficult to overcome by using the conventional spot welding process: for example, an oxide layer can block the intermetallic combination in the aluminum alloy welding process, and slag inclusion is easily caused; the heat conductivity coefficient and the specific heat capacity of the aluminum alloy are large, and melting is easy to occur in the welding process; local overheating easily occurs in the welding process, so that the fatigue resistance of the structure is reduced, and the like. Traditional mechanical connection needs to have certain assembly space if bolted connection, and traditional riveting needs to treat the material of connecting and punch a hole in advance, and the process is complicated and difficult to realize the automation.

The self-piercing riveting is a novel cold deformation forming process, and an interlocking riveting point is formed by plastic flow deformation of a semi-hollow rivet and a plate to be connected without drilling in advance, so that the connection of metal materials is realized. Compared with the traditional riveting and welding process, the self-piercing riveting has many advantages: the application range is wide, and the material can be connected with various materials such as ultrahigh-strength steel, aluminum alloy, titanium alloy, composite materials and the like; the automation degree is high, and the connection quality is high and stable; the riveting process is short, and the production efficiency is high; the energy consumption is low, the pollution is low, and the environment is friendly; the molding process can be monitored; can be used in combination with an adhesive, etc.

The self-piercing riveting is widely applied to vehicle body connection, and has very wide market prospect. The key for popularizing the application of the self-piercing riveting process in the mechanical industry is the independent development of the self-piercing riveting machine and accessory parts. For a small portable self-punching riveting machine, the defect is that the throat depth of a C-shaped frame is small, the requirement of multi-riveting point riveting of a large-size thin plate cannot be met, and the continuity is poor. The C-shaped frame of the self-piercing riveting machine with the deep throat has large mass, generally only one riveting point is provided, the position of the riveting point is fixed, and the self-piercing riveting machine is not flexible enough when a large-size thin plate is connected and has low efficiency. Therefore, aiming at the defects of the C-shaped frame of the existing self-piercing riveting machine, the novel C-shaped frame device of the self-piercing riveting machine, which has the advantages of simple and reliable structure, flexible die transformation, wide applicability, small occupied space, convenience in use and maintenance and independent property right, is developed, the problem of low efficiency caused by frequent die and plate position transformation of large-size thin-wall plates during self-piercing riveting connection is solved, and the C-shaped frame device has important significance for promoting the popularization and application of the self-piercing riveting machine in the mechanical equipment industries such as automobile manufacturing and the like, and has huge economic value.

Disclosure of Invention

The invention aims to develop a C-shaped frame device of a fixed multi-station large throat depth self-piercing riveting machine, solves the problem of low connection efficiency caused by frequent replacement of dies and moving of plates when large-size thin-wall plates are self-piercing riveted, and has the advantages of simple and compact structure, flexible die change, wide size range of connecting plates, quick and accurate positioning, convenience in use and maintenance and the like.

The invention is realized by the following technical scheme.

The invention comprises the following steps: the device comprises a tail end fixing block (1), a guide rail moving slide block (2), a starting end fixing block (3), a hexagon screw (4), a motor (5), a C-shaped frame (6), a bidirectional screw rod (7), a deep groove ball bearing (8), a female die mounting table (9) and a female die (10).

C type frame (6) upper and lower arm extends, and upper arm upper surface wears counter bore and through-hole downwards, is the non-round hole, forms along upper arm length direction track, moves the slider cooperation installation with the guide rail, and upper arm one side processing scale is convenient for confirm slider shift position to process 12 screw holes, pass through hexagon head screw (4) with terminal fixed block (1), initiating terminal fixed block (3), motor (5) and be connected. The main body of the guide rail moving slide block (2) is L-shaped, a cylinder is processed on the inner side of the guide rail moving slide block, a round hole (through hole) is processed downwards from the upper surface of the guide rail moving slide block and is matched with the portable self-punching riveting machine for installation, and a threaded hole is processed on the outer side of the guide rail moving slide block and is matched with the bidirectional lead screw (7) for installation. The tail end fixing block (1) and the starting end fixing block (3) are both in a convex structure, a threaded hole is machined in the tail end fixing block (1), and a deep groove ball bearing (8) is arranged in the starting end fixing block (3) and matched with the bidirectional lead screw (7). The motor (5) is arranged on one side of the C-shaped frame (6) and provides power. A plurality of through holes are processed on the lower arm of the C-shaped frame (6) and are matched with the female die mounting table (9) to place the female die (10). Firstly, a guide rail moving slide block (2) is placed in a guide rail on the upper arm of a C-shaped frame (6), then a bidirectional lead screw (7) and a deep groove ball bearing (8) which is arranged in a starting end fixing block (3) in an interference fit mode are installed, then the bidirectional lead screw is sequentially screwed into threaded holes of a motor (5), the guide rail moving slide block (2) and a tail end fixing block (1), and all the parts are installed and fixed on the C-shaped frame (6) through hexagonal head screws (4). Before large-size plates are connected, a portable self-punching riveting machine is firstly arranged in holes of a guide rail moving slide block (2) for locking, female dies (10) with different parameters are arranged in holes of a series of die mounting tables (9) of a lower arm of a C-shaped frame (6), and then the plates are moved to corresponding positions. The motor (5) is started, and the bidirectional screw rod (7) is driven to rotate through the transmission mechanism, so that the guide rail moving slide block (2) can move bidirectionally along the length direction of the upper arm of the C-shaped frame (6). According to the scale on one side of the upper arm, the guide rail moving slide block (2) can be accurately moved to corresponding points of the five female die installation tables (9), so that the punch and the female die (10) of the portable riveting machine are completely centered, and the stable and continuous riveting of the plate is completed.

The fixed multi-station large throat depth self-piercing riveting machine C-shaped frame device is characterized in that: counter bores and through holes are downwards penetrated through the upper surface of the upper arm of the C-shaped frame (6) to form a track along the length direction of the upper arm, a scale is machined on one side of the upper arm, 12 threaded holes are machined, and a plurality of through holes are machined in the lower arm;

the fixed multi-station large throat depth self-piercing riveting machine C-shaped frame device is characterized in that: the main body of the guide rail moving slide block (2) is L-shaped, a cylinder is processed on the inner side, a round hole (through hole) is processed from the upper surface to the lower side, and a threaded hole is processed on the outer side;

the fixed multi-station large throat depth self-piercing riveting machine C-shaped frame device is characterized in that: the tail end fixing block (1) and the starting end fixing block (3) are both convex in structure, a threaded hole is machined in the tail end fixing block (1), and a deep groove ball bearing (8) is arranged in the starting end fixing block (3);

the fixed multi-station large throat depth self-piercing riveting machine C-shaped frame device is characterized in that: the motor (5) is arranged on one side of the C-shaped frame (6) and provides power;

the fixed multi-station large throat depth self-piercing riveting machine C-shaped frame device is characterized in that: the number of the female die mounting tables (9) is 5, the cylindrical part at the lower end is arranged in a circular hole of a lower arm of the C-shaped frame (6), and the female die (10) is arranged in a counter bore at the upper end of the female die mounting table (9);

the fixed multi-station large throat depth self-piercing riveting machine C-shaped frame device is characterized in that: the standard part of the hexagon head screw (4) used by the device, the tail end fixing block (1), the guide rail moving slide block (2), the starting end fixing block (3), the C-shaped frame (6) and the female die mounting table (9) are made of low-carbon steel materials.

Compared with the background technology, the invention has the following beneficial effects:

1. the invention can realize self-piercing riveting connection of different forming parameters by replacing and installing the female dies with different size parameters on different female die installation tables.

2. The invention has wide application range, and the position of the self-piercing riveting machine can be accurately moved and changed by moving the guide rail moving slide block in the groove of the C-shaped frame corresponding to the scale ruler on the upper arm of the C-shaped frame, thereby meeting the requirements of connection of plates with different sizes.

3. The invention has the advantages of simple and compact structure, wide application range, quick and accurate positioning, convenient use and maintenance, low manufacturing cost and the like.

Drawings

FIG. 1 is a schematic three-dimensional assembly of the present invention.

Fig. 2 is a three-view of a C-shaped frame structure.

Fig. 3 is a three-view of a track-moving slider structure.

Fig. 4 is a three-dimensional view of the starting end anchor block structure.

Fig. 5 is a three-view of the end fixing block structure.

Fig. 6 is a schematic view of the use state of the present invention.

Detailed Description

FIG. 1 is a schematic three-dimensional assembly of the present invention, the structure comprising: the device comprises a tail end fixing block (1), a guide rail moving slide block (2), a starting end fixing block (3), a hexagon screw (4), a motor (5), a C-shaped frame (6), a bidirectional screw rod (7), a deep groove ball bearing (8), a female die mounting table (9) and a female die (10).

Fig. 2 is a three-dimensional view of a C-shaped frame (6) structure, wherein upper and lower arms extend, counter bores and through holes are formed in the upper surface of the upper arm and are non-circular holes, the counter bores and the through holes are formed in the upper surface of the upper arm and are installed in a matched mode with a guide rail moving slide block, a scale is machined on one side of the upper arm, the moving position of the slide block is convenient to determine, 12 threaded holes are machined, and the threaded holes are connected with a terminal fixing block (1), a starting end fixing block (3) and a motor (5) through hexagonal head screws (4).

Fig. 3 is a three-dimensional view of the structure of the guide rail moving slide block (2), the main body is L-shaped, the inner side of the guide rail moving slide block is processed with a cylinder, a round hole (through hole) is processed downwards from the upper surface of the guide rail moving slide block and is matched with a portable self-punching riveting machine for installation, and a threaded hole is processed at the outer side of the guide rail moving slide block and is matched with a bidirectional lead screw (7) for installation.

Fig. 4 is a three-view diagram of the structure of the starting end fixing block (3), which is in a convex shape, a deep groove ball bearing (8) is arranged in the starting end fixing block, the starting end fixing block is in interference fit with a bidirectional screw rod (7), and threaded holes are machined in two sides of the starting end fixing block and connected with a C-shaped frame.

Fig. 5 is a three-dimensional view of the structure of the tail end fixing block (1), which is in a convex shape, is provided with threaded holes, and is respectively matched with a bidirectional screw rod (7) and connected with a C-shaped frame.

Fig. 6 is a schematic view of the using state of the invention, and the portable self-piercing riveting machine is arranged on the guide rail moving slide block (2) and locked. Moving the plate to be connected to the riveting point position, accurately moving the guide rail moving slide block (2) to the riveting point position of dies with different parameters according to a scale on one side of the upper arm of the C-shaped frame (6), centering a punch of the riveting machine and a female die (10) of a female die mounting table (9), and then carrying out self-piercing riveting.

The working principle of the invention is as follows:

firstly, a guide rail moving slide block (2) is placed in a guide rail on the upper arm of a C-shaped frame (6), then a bidirectional lead screw (7) and a deep groove ball bearing (8) which is arranged in a starting end fixing block (3) in an interference fit mode are installed, then the bidirectional lead screw is sequentially screwed into threaded holes of a motor (5), the guide rail moving slide block (2) and a tail end fixing block (1), and all the parts are installed and fixed on the C-shaped frame (6) through hexagonal head screws (4). Before connecting large-size plates, a portable riveting machine is firstly arranged in holes of a guide rail moving slide block (2) for locking, female dies (10) with different parameters are arranged in holes of a series of die mounting tables (9) of a lower arm of a C-shaped frame (6), and then the plates are moved to corresponding positions. The motor (5) is started, and the bidirectional screw rod (7) is driven to rotate through the transmission mechanism, so that the guide rail moving slide block (2) can move bidirectionally along the length direction of the upper arm of the C-shaped frame (6). According to the scale on one side of the upper arm, the guide rail moving slide block (2) can be accurately moved to corresponding points of the five female die installation tables (9), so that the punch and the female die (10) of the portable self-piercing riveting machine are completely centered, and the stable and continuous riveting of the plate is completed.