A flexible riveting automation base

Abstract

The present invention discloses a flexible riveting automation base, which relates to the field of riveting technology, including a slide base, a slideway connected to the slide base, limit blocks symmetrically arranged on the slide base on both sides of the slide, the limit blocks connected to the slide, a limit support plate connected above the slide, a cylinder fixed lower bracket symmetrically arranged on the limit support plate, a lifting cylinder arranged on the cylinder fixed lower bracket, the upper end of the lifting cylinder arranged on the cylinder fixed upper bracket, a support plate arranged on the cylinder fixed upper bracket, a sheet metal fixed base arranged on the support plate, and a sheet metal positioning assembly arranged on the sheet metal fixed base. The present invention converts the rigid impact force of the stamping process into a flexible impact force through a lifting cylinder and a spring, thereby buffering the impact force of the upper pressing plate, ensuring the flatness of the sheet metal, realizing automatic positioning of the sheet metal, and improving product quality and production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pressure riveting, and in particular to a flexible pressure riveting automation base. Background Art

[0002] During the backlight processing, sheet metal parts need to be riveted. Existing riveting equipment has great defects in the riveting process. Sheet metal parts are prone to rivet deviation during the riveting process. Excessive impact force causes sheet metal parts to deform. Inaccurate riveting positions cause rivets to be unable to be fixed well, affecting product quality. Summary of the invention

[0003] The purpose of the present invention is to solve the above technical problems and provide a flexible riveting automation base.

[0004] In order to achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by the present invention is: a flexible riveting automation base, including a slide base, a plurality of pulleys are arranged in the center of the slide base, the pulleys are embedded in the slide grooves on the lower surface of the slide, the slide grooves on the left and right surfaces of the slide are connected to the limiting blocks through a plurality of pulleys, the slide grooves on the upper surface of the slide are fixed to the limiting support plate through a plurality of pulleys, the limiting support plate is symmetrically provided with a cylinder fixed lower bracket, the cylinder fixed lower bracket is provided with a lifting cylinder, the lifting cylinder passes through the upper end of the cylinder fixed lower bracket and is arranged on the cylinder fixed upper bracket, the cylinder fixed upper bracket is provided with a support plate, the support plate is provided with a sheet metal fixed base, and the sheet metal fixed base is provided with a sheet metal positioning component to realize precise positioning and flexible riveting of sheet metal parts.

[0005] Preferably: the sheet metal positioning assembly includes a sheet metal limit block matching the shape of the sheet metal part, a plurality of the sheet metal limit blocks are symmetrically arranged, and a plurality of square holes matching the sheet metal limit blocks are arranged on the sheet metal fixing base, which can be applicable to the positioning of various models of sheet metal.

[0006] Preferably, the sheet metal limiting block is configured as an L-shaped slot, and a nylon sleeve is provided on the contact surface between the inner side of the L-shaped slot and the sheet metal part to prevent scratches during the clamping process of the sheet metal.

[0007] Preferably: the sheet metal positioning assembly includes a number of evenly distributed suction seats, a through hole is provided in the suction seat, one end of the through hole is connected to the air supply pipe of the air compressor, and the other end is provided with a suction soft head. After the suction soft head contacts the sheet metal and receives a signal, the vacuum pump sucks air to fix the sheet metal, and the suction soft head is designed to prevent scratches on the sheet metal.

[0008] Preferably: the sheet metal positioning assembly includes a rivet positioning seat, in which a positioning pin is arranged to match the sheet metal compression air, a through hole is arranged at the lower end of the positioning pin, and the other end of the through hole is connected to the air supply pipe of the air compressor, and the positioning pin is set to position the rivet to prevent the rivet from being displaced.

[0009] Preferably: a connecting plate is symmetrically provided at the lower end of the cylinder fixing upper bracket through bolts, and the connecting plate contacts the limit block when the lifting cylinder descends, thereby limiting the stroke of the cylinder to prevent damage to the lifting cylinder caused by excessive pressure, and at the same time ensuring that the depth of the rivet and the pressed sheet metal meet the use requirements. A pressing hole matching the pressed rivet is provided in the rivet positioning seat to ensure the verticality of the rivet when it is placed, thereby preventing the rivet from being pressed crooked.

[0010] Preferably: the outer ring of the lifting cylinder is provided with a spring, and the spring is arranged between the cylinder fixed lower bracket and the cylinder fixed upper bracket, and is used to protect the lifting cylinder, buffer the instantaneous pressure of the lifting cylinder during riveting, and protect the lifting cylinder.

[0011] Compared with the traditional structure, the invention has the following beneficial effects:

[0012] 1. The structural design of the present invention is reasonable. The rigid impact force of the stamping process is converted into a flexible impact force through the lifting cylinder and the spring, thereby buffering the impact force of the upper pressing plate to ensure the deformation amount of the sheet metal riveting process and the flatness of the sheet metal.

[0013] 2. Use the sheet metal limit blocks and positioning pins together with the vacuum suction of the air compressor, or use the sheet metal limit blocks in combination with vacuum suction, or use the positioning pins in combination with the sheet metal limit blocks to achieve accurate positioning of the sheet metal parts and avoid crooked rivets.

[0014] 3. The sheet metal positioning assembly includes a number of evenly distributed suction seats, each of which is provided with a through hole. One end of the through hole is connected to the air pipe of the air compressor, and the other end is provided with a suction soft head. After the suction soft head contacts the sheet metal and receives a signal, the vacuum pump suctions to fix the sheet metal, thereby realizing automatic positioning of the sheet metal, reducing labor costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the present invention;

[0016] Figure 2 A top view of the present invention;

[0017] Figure 3 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0018] Figure 4 This is a structural diagram of Embodiment 2 of the present invention;

[0019] Figure 5 This is a structural diagram of Embodiment 3 of the present invention;

[0020] In the figure: 1. slide base, 2. lifting cylinder, 3. cylinder fixed lower bracket, 4. cylinder fixed upper bracket, 5. sheet metal limit block, 6. sheet metal fixed base, 7. support plate, 8. connecting plate, 9. limit support plate, 10. limit block, 11. pulley, 12. slide, 12-1, slide groove, 13. sheet metal part, 15. spring, 16. suction soft head, 17. suction seat, 18. rivet positioning seat. DETAILED DESCRIPTION

[0021] The present invention will be further described below.

[0022] Refer to the attached Figure 1-2 A flexible riveting automation base comprises a slide base 1, a plurality of pulleys 11 are arranged at the center of the slide base 1, the pulleys 11 are embedded in the slide grooves 12-1 on the lower surface of the slideway 12, the slide grooves 12-1 on the left and right surfaces of the slideway 12 are connected to the limited block 10 through a plurality of pulleys 11, the slide grooves 12-1 on the upper surface of the slideway 12 are fixed to the limited support plate 9 through a plurality of pulleys 11, the limited support plate 9 is symmetrically provided with a cylinder fixed lower bracket 3, the cylinder fixed lower bracket 3 is provided with a lifting cylinder 2, the lifting cylinder 2 passes through the upper end of the cylinder fixed lower bracket 3 and is arranged on the cylinder fixed upper bracket 4, the cylinder fixed upper bracket 4 is provided with a support plate 7, the support plate 7 is provided with a sheet metal fixed base 6, and the sheet metal fixed base 6 is provided with a sheet metal positioning component to realize the precise positioning and flexible riveting of the sheet metal part 13.

[0023] In the preferred embodiment, after receiving the signal, the pulley 11 moves in the slide groove 12 - 1 to automatically slide to the riveting position for riveting.

[0024] In this preferred embodiment, a connecting plate 8 is symmetrically provided at the lower end of the cylinder fixing upper bracket 4 through bolts. The connecting plate 8 contacts the limit block 10 when the lifting cylinder 2 descends, thereby limiting the stroke of the cylinder to prevent damage to the lifting cylinder due to excessive pressure, while ensuring that the depth of the rivet and the depth of the pressed sheet metal meet the use requirements.

[0025] In this preferred embodiment, the outer ring of the lifting cylinder 2 is provided with a spring 15, and the spring 15 is arranged between the cylinder fixed lower bracket 3 and the cylinder fixed upper bracket 4, which is used to protect the lifting cylinder and buffer the instantaneous pressure of the lifting cylinder during riveting.

[0026] Embodiment 1: Figure 3As shown, the sheet metal positioning assembly uses 6 sheet metal limit blocks 5 that match the shape of the sheet metal part. The sheet metal part 13 is placed in the 6 sheet metal limit blocks 5 to position the sheet metal. The sheet metal fixing base 6 is provided with a plurality of square holes that match the sheet metal limit blocks 5. The sheet metal of different types can be fixed by adjusting the connection position of the sheet metal limit blocks 5 to achieve sheet metal positioning. The sheet metal limit block 5 is set as an L-shaped card slot, and a nylon card sleeve is set on the inner side of the L-shaped card slot and the contact surface with the sheet metal part 13 to prevent scratches during the clamping of the sheet metal.

[0027] Embodiment 2: Figure 4 As shown, the sheet metal positioning assembly includes a number of evenly distributed suction seats 17, wherein the suction seats 17 are provided with through holes, one end of which is connected to the air delivery pipe of the air compressor, and the other end is provided with a suction soft head 16. The sheet metal 13 is placed on the suction soft head 16, and after the suction soft head 16 contacts the sheet metal and receives a signal, the suction switch is pressed, and the air compressor enters the suction state, and the suction soft head 16 fixes the sheet metal 13, and the suction soft head 16 is designed to prevent the sheet metal from being scratched.

[0028] Embodiment 3: Figure 5 As shown, the sheet metal positioning assembly includes a rivet positioning seat 18, and a pressure hole matching the pressed rivet is provided in the rivet positioning seat 18 to ensure the verticality of the rivet when it is placed, thereby preventing the rivet from being crooked; a positioning pin matching the pressure hole of the sheet metal 13 is provided in the rivet positioning seat 18, and a through hole is provided at the lower end of the positioning pin, and the other end of the through hole is connected to the air supply pipe of the air compressor. When the air compressor receives the signal, it inputs gas into the through hole to push the positioning pin out, and accurately positions the sheet metal. After positioning, the signal is transmitted, and the air compressor stops supplying gas. The positioning pin drops under the action of gravity, and the rivet is placed in the pressure hole of the sheet metal 13, thereby realizing the automatic riveting action integrating sheet metal positioning and rivet positioning. The position of the positioning pin can be adjusted according to the empty space to adapt to the positioning and riveting of sheet metals of different models, and realize sharing.

[0029] Embodiment 4: When the size of the sheet metal is too large, the sheet metal can be fixed by combining the sheet metal limit block 5 of embodiment 1 and the suction seat 17 of embodiment 2; or the sheet metal can be fixed and the rivets can be positioned by combining embodiments 1, 2 and 3.

[0030] In specific implementation, after the sheet metal 13 is placed stably, the rivet is placed in the pressing hole, and the upper pressing plate presses the rivet downward. While pressing, under the action of inertia, the sheet metal fixing base 6 drives the support plate 7, and the support plate 7 converts the rigid force of the upper pressing plate into a flexible force through the buffering force of the lifting cylinder 2, thereby avoiding the sheet metal deformation caused by the punching of the sheet metal and the rivet. The connecting plate 8 contacts the limit block 10 to limit the stroke of the lifting cylinder 2, preventing the lifting cylinder 2 from being damaged by excessive pressure, and at the same time ensuring that the depth of the rivet and the pressed sheet metal meets the use requirements.

[0031] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A flexible riveting automation base, characterized by: The invention comprises a slide base (1), wherein a plurality of pulleys (11) are arranged at the center of the slide base (1), wherein the pulleys (11) are embedded in a slide groove (12-1) on the lower surface of a slideway (12), wherein the slide grooves (12-1) on the left and right surfaces of the slideway (12) are connected to a limit block (10) via the plurality of pulleys (11), wherein the slide groove (12-1) on the upper surface of the slideway (12) is fixed to a limit support plate (9) via the plurality of pulleys (11), wherein a cylinder fixing lower bracket (3) is symmetrically arranged on the left and right sides of the limit support plate (9), and a cylinder fixing lower bracket (3) is arranged on the cylinder fixing lower bracket (3). A lifting cylinder (2) is provided, the lifting cylinder (2) passes through the upper end of the cylinder fixed lower bracket (3) and is arranged on the cylinder fixed upper bracket (4), the outer ring of the lifting cylinder (2) is provided with a spring (15), the spring (15) is arranged between the cylinder fixed lower bracket (3) and the cylinder fixed upper bracket (4), the cylinder fixed upper bracket (4) is provided with a support plate (7), the support plate (7) is provided with a sheet metal fixed base (6), and the sheet metal fixed base (6) is provided with a sheet metal positioning component, so as to realize accurate positioning and flexible riveting of the sheet metal part (13); The sheet metal positioning assembly comprises a sheet metal limiting block (5) matching the shape of the sheet metal part (13), a plurality of the sheet metal limiting blocks (5) are symmetrically arranged, and a plurality of holes matching the sheet metal limiting blocks (5) are arranged on the sheet metal fixing base (6); It also includes a plurality of evenly distributed suction seats (17), wherein a through hole is provided in the suction seat (17), one end of the through hole is connected to the air supply pipe of the air compressor, and the other end is provided with a suction soft head (16), and the suction soft head (16) receives a signal after contacting the sheet metal part (13), and suctions the sheet metal part (13) to fix it; It also comprises a rivet positioning seat (18), wherein a positioning pin is arranged inside the rivet positioning seat (18) and matches the sheet metal part (13) under pressure, and a through hole is arranged at the lower end of the positioning pin, and the other end of the through hole is connected to the air supply pipe of the air compressor.

2. The flexible pressure riveting automation base according to claim 1 is characterized in that: The sheet metal limiting block (5) is configured as an L-shaped slot, and a nylon sleeve is provided on the contact surface between the inner side of the L-shaped slot and the sheet metal component (13).

3. The flexible pressure riveting automation base according to claim 1 is characterized in that: A connecting plate (8) is symmetrically arranged at the lower end of the cylinder fixed upper bracket (4), and the connecting plate (8) contacts the limit block (10) when the lifting cylinder (2) descends.

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