A double-point rivet-free riveting device

Abstract

This invention relates to the field of riveting connection technology, and more particularly to a double-point rivetless riveting device, comprising a base plate, a die, a jig cylinder, a top block, a blocking block, a guide rail, a slanted slider, and a push rod. The top of the base plate is fixedly connected to the bottom of the die. The jig cylinder is fixedly installed on the left side of the top of the base plate, and its free end is drivenly connected to the top block. The blocking block is fixedly installed on the base plate. The guide rail is fixedly installed on the top of the base plate. The right side of the top block is movably connected to the slanted slider, which is slidably mounted on the guide rail. This invention achieves the purpose of automatic demolding of riveted parts, replacing the cumbersome manual demolding method of the past. It not only improves the demolding efficiency after riveting, but also enables the demolding action to be performed automatically, thereby improving demolding and riveting efficiency. It can significantly improve the automation performance of the riveting machine and reduce the amount of manual intervention and labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of riveting connection, and in particular to a double-point rivet-free riveting device. Background Art

[0002] The riveting machine is a new type of riveting equipment developed based on the principle of cold rolling, which refers to mechanical equipment that can rivet objects together with rivets. It solves the problem that some sheet metal parts cannot be directly placed on ordinary slope cast steel machinery for riveting after bending.

[0003] However, in the process of using the riveting machine, two sheet metal parts can be riveted firmly without rivets by the method of cooperating between male and female dies and extrusion. However, after the riveting, the riveted sheet metal parts need to be manually removed and demolded. However, the manual demolding method is more difficult, not only the operation is cumbersome, but also the demolding efficiency is extremely low, so it cannot meet the use requirements of the riveting machine. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a double-point rivet-free riveting device, which achieves the purpose of automatically demolding riveted parts, replacing the cumbersome manual demolding method of the past. It not only improves the demolding efficiency after riveting, but also the demolding action can be performed automatically, thereby improving the demolding and riveting efficiency, and can greatly improve the automation performance of the riveting machine, and reduce the amount of manual participation and labor intensity.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a double-point rivet-free riveting device, comprising a base plate, a die, a jig cylinder, a top block, a blocking block, a guide rail part, an inclined sliding block and a push rod, the top of the base plate is fixedly connected to the bottom of the die, the jig cylinder is fixedly installed on the left side of the top of the base plate, the free end of the jig cylinder is transmission connected to the top block, the blocking block is fixedly installed on the base plate, the guide rail part is fixedly installed on the top of the base plate, the right side of the top block is movably connected to the inclined sliding block, the inclined sliding block is slidably installed on the guide rail part, the push rod is movably installed on the die, and the right side of the top block is transmission connected to the push rod.

[0006] As a further improvement of the present invention, a die table is fixedly installed on the top of the bottom plate, the die table is located on the right side of the concave die, and movable cushion blocks are arranged on the die table, and the number of the movable cushion blocks is four.

[0007] As a further improvement of the present invention, guide pillars are fixedly installed on the top of the base plate. The number of the guide pillars is four, and the bottoms of the four guide pillars are respectively located around the top of the base plate. Limiting pillars are fixedly installed on the guide pillars.

[0008] As a further improvement of the present invention, a linear bearing is slidably mounted on the outer surface of the guide column, the number of the linear bearings is four, and an upper pressure plate is fixedly mounted on the linear bearings.

[0009] As a further improvement of the present invention, a punch is fixedly mounted on the bottom of the upper pressing plate, and the punch is located just above the top of the die.

[0010] As a further improvement of the present invention, a spring shaft is fixedly installed at the bottom of the upper pressure plate, the bottom end of the spring shaft overlaps the top of the mold platform, and a rectangular spring is sleeved on the outer surface of the spring shaft.

[0011] The present invention provides a double-point rivet-free riveting device, which has the following beneficial effects:

[0012] 1. After the riveting is completed, the operation of the jig cylinder can drive the ejector block to move to the right side, and the ejector block, the inclined slider and the ejector rod are used in conjunction with the movable connection between the ejector block, the inclined slider and the ejector rod. The ejector block is designed to move forward at a demolding angle of 6°. When the part is demolded, the jig cylinder pushes the ejector block to move forward 5mm. The ejector block pushes the inclined slider upward through the inclined surface on the guide rail, and the ejector rod on the die also pushes the part upward to complete the demolding action. Therefore, the purpose of automatically demolding the riveted parts is achieved, replacing the cumbersome manual demolding method in the past. Not only is the demolding efficiency after riveting improved, but the demolding action can be performed automatically, thereby improving the demolding and riveting efficiency, and can greatly improve the automation performance of the riveting press, and reduce the amount of manual participation and labor intensity.

[0013] 2. The present invention uses a hydraulic press to apply force to the upper pressure plate, so that the punch moves downward and rivets the parts inside the die. At the same time, the use of four guide columns and linear bearings can ensure that the punch and die are always on the same axis during the movement. The stroke of riveting is set by the limit column installed on the guide column, and the stroke positioning is achieved by adjusting the hexagon socket screw on the limit column. A heat-treated gasket is embedded in the middle of the upper pressure plate that repeatedly contacts and limits the screw. The gasket has the characteristics of high hardness and not easy to wear, which ensures the depth of the reciprocating riveting point. The use of the spring shaft and the rectangular spring can provide a buffering effect on the riveting process, thereby preventing the parts from being deformed during the riveting process, providing effective protection for the riveted parts, and improving the quality of the riveted connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0015] Figure 2 It is a front schematic diagram of the structure of the present invention;

[0016] Figure 3 A side view of the structure of the present invention;

[0017] Figure 4 It is a top view of the structure of the present invention.

[0018] In the figure: 1. bottom plate; 2. die; 3. jig cylinder; 4. ejector block; 5. stopper block; 6. guide rail; 7. inclined slide block; 8. ejector rod; 9. die table; 10. movable pad; 11. guide column; 12. linear bearing; 13. upper pressure plate; 14. punch; 15. limit column; 16. spring shaft; 17. rectangular spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The present invention provides a technical solution: a double-point rivet-free riveting device, comprising a base plate 1, a die 2, a jig cylinder 3, a top block 4, a blocking block 5, a guide rail member 6, an inclined sliding block 7 and a push rod 8. The top of the base plate 1 is fixedly connected to the bottom of the die 2, the jig cylinder 3 is fixedly installed on the left side of the top of the base plate 1, the free end of the jig cylinder 3 is transmission-connected to the top block 4, the blocking block 5 is fixedly installed on the base plate 1, the guide rail member 6 is fixedly installed on the top of the base plate 1, the right side of the top block 4 is movably connected to the inclined sliding block 7, the inclined sliding block 7 is slidably installed on the guide rail member 6, the push rod 8 is movably installed on the die 2, and the right side of the top block 4 is transmission-connected to the push rod 8. After the riveting is completed, the top block 4 can be driven to move to the right side by the operation of the jig cylinder 3, and is used in conjunction with the active connection between the top block 4, the inclined sliding block 7 and the push rod 8. The demoulding angle of the top block 4 is designed to be 6°, the function of the blocking block 5 is to provide a rear limit for the ejector block 4. When the part is demolded, the fixture cylinder 3 pushes the ejector block 4 forward 5mm, and the ejector block 4 lifts the inclined slide block 7 upward through the inclined surface on the guide rail 6. At the same time, the ejector rod 8 on the die 2 also lifts the part upward to complete the demolding action. The demolding angle of the cavity of the male and female molds is 5° on one side. After the part is riveted, the cross-section is cut and it can be observed that the sheet metal riveted parts form barbs with each other and fit tightly. The depth of the rivet point is 4.5mm and the diameter is 4.3mm. Therefore, the purpose of automatically demolding the riveted parts is achieved, replacing the cumbersome manual demolding method in the past. It not only improves the demolding efficiency after riveting, but also the demolding action can be performed automatically, thereby improving the demolding and riveting efficiency, and can greatly improve the automation performance of the riveting press, reduce the amount of manual participation and labor intensity.

[0021] A die table 9 is fixedly installed on the top of the bottom plate 1, and the die table 9 is located on the right side of the die 2. A movable cushion block 10 is arranged on the die table 9, and the number of the movable cushion blocks 10 is four. A guide column 11 is fixedly installed on the top of the bottom plate 1, and the number of the guide columns 11 is four. The bottoms of the four guide columns 11 are respectively located around the top of the bottom plate 1. A limiting column 15 is fixedly installed on the guide column 11. A linear bearing 12 is slidably installed on the outer surface of the guide column 11. The number of the linear bearings 12 is four. An upper pressing plate 13 is fixedly installed on the linear bearing 12. A punch 14 is fixedly installed on the bottom of the upper pressing plate 13. The punch 14 is located directly above the top of the die 2. A spring shaft 16 is fixedly installed on the bottom of the upper pressing plate 13. The bottom end of the spring shaft 16 overlaps the top of the die table 9. A rectangular spring is sleeved on the outer surface of the spring shaft 16. By adopting liquid The press applies force to the upper pressing plate 13, which can make the punch 14 move downward and rivet the parts inside the die 2. At the same time, the four guide pillars 11 and the linear bearings 12 are used in coordination to ensure that the punch and die are always on the same axis during the movement. The stroke of the riveting is set by the limit pillar 15 installed on the guide pillar 11, and the stroke positioning is achieved by adjusting the hexagon socket screw on the limit pillar 15. A heat-treated gasket is embedded in the middle of the upper pressing plate 13 that is repeatedly contacted and limited by the screw. The gasket is characterized by high hardness and not easy to wear, which ensures the depth of the reciprocating riveting points. The use of the spring shaft 16 and the rectangular spring 17 can provide a buffering effect on the riveting process, thereby preventing the parts from being deformed during the riveting process, providing effective protection for the riveted parts, and improving the quality of the riveted connection.

[0022] During use, the device is used to rivet two sheet metal parts together without rivets by means of the cooperating extrusion of the male and female dies. By using a hydraulic press to apply force to the upper pressure plate 13, the male die 14 can be moved downward to rivet the parts inside the female die 2. At the same time, the four guide columns 11 and the linear bearings 12 are used in conjunction to ensure that the male and female dies are always on the same axis during the movement. The stroke of the riveting is set by the limit column 15 installed on the guide column 11, and the stroke positioning is achieved by adjusting the hexagon socket screw on the limit column 15. A heat-treated gasket is embedded in the middle of the upper pressure plate 13 that is repeatedly in contact with the screw to limit the position. The gasket is characterized by high hardness and not easy to wear, which ensures the depth of the reciprocating riveting points.

[0023] After the riveting is completed, the operation of the jig cylinder 3 can drive the top block 4 to move to the right side, and the top block 4, the inclined slider 7 and the top rod 8 are used in conjunction with the movable connection between the top block 4, the inclined slider 7 and the top rod 8. The demoulding angle of the top block 4 is designed to be 6°, and the function of the blocking block 5 is to make a rear limit for the top block 4. When the part is demoulded, the jig cylinder 3 pushes the top block 4 forward by 5mm, and the top block 4 pushes the inclined slider 7 upward through the inclined surface on the guide rail 6. At the same time, the top rod 8 on the die 2 also pushes the part upward to complete the demoulding action. The demoulding angle of the cavity of the male and female molds is 5° on one side. After the part is riveted, the cross-section can be cut to observe that the sheet metal riveted joints form barbs with each other and fit closely. The depth of the riveting point is 4.5mm and the diameter is 4.3mm. Therefore, the purpose of automatically demoulding the riveted parts is achieved, replacing the cumbersome manual demoulding method in the past. It not only improves the demoulding efficiency after riveting, but also the demoulding action can be performed automatically, thereby improving the demoulding and riveting efficiency, which can greatly improve the automation performance of the riveting press and reduce the amount of manual participation and labor intensity.

[0024] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-point rivetless riveting device, comprising a base plate (1), a die (2), a jig cylinder (3), a top block (4), a stop block (5), a guide rail (6), an inclined slide block (7) and a top rod (8), characterized in that: The top of the base plate (1) is fixedly connected to the bottom of the die (2); the jig cylinder (3) is fixedly mounted on the left side of the top of the base plate (1); the free end of the jig cylinder (3) is transmission-connected to the top block (4); the blocking block (5) is fixedly mounted on the base plate (1); the guide rail member (6) is fixedly mounted on the top of the base plate (1); the right side of the top block (4) is movably connected to the inclined slide block (7); the inclined slide block (7) is slidably mounted on the guide rail member (6); the top rod (8) is movably mounted on the die (2); and the right side of the top block (4) is transmission-connected to the top rod (8); A die table (9) is fixedly mounted on the top of the bottom plate (1), the die table (9) is located on the right side of the concave die (2), and movable cushion blocks (10) are arranged on the die table (9), and the number of the movable cushion blocks (10) is four; A guide column (11) is fixedly mounted on the top of the base plate (1), the number of the guide columns (11) being four, the bottoms of the four guide columns (11) being respectively located around the top of the base plate (1), and a limit column (15) is fixedly mounted on the guide column (11); a linear bearing (12) is slidably mounted on the outer surface of the guide column (11), the number of the linear bearings (12) being four, and an upper pressure plate (13) is fixedly mounted on the linear bearing (12).

2. A double-point rivetless riveting device according to claim 1, characterized in that: A punch (14) is fixedly mounted on the bottom of the upper pressing plate (13), and the punch (14) is located directly above the top of the die (2).

3. A double-point rivetless riveting device according to claim 1, characterized in that: A spring shaft (16) is fixedly mounted on the bottom of the upper pressing plate (13), the bottom end of the spring shaft (16) overlaps the top of the die table (9), and a rectangular spring (17) is sleeved on the outer surface of the spring shaft (16).

Images