Curved surface part stamping and riveting equipment

Abstract

The utility model discloses punching and riveting equipment for curved surface parts, which belongs to the technical field of riveting and comprises a supporting carrier. The supporting carrier used for positioning and supporting the U-shaped curved surface workpiece is connected with the U-shaped curved surface workpiece in an inserted mode. A riveting assembly used for rivet negative pressure suction and stamping riveting is arranged above the U-shaped curved surface workpiece. The riveting assembly comprises a negative pressure drawing assembly, a position adjusting assembly, a connecting frame, a robot tail end and a stamping assembly, the robot tail end is fixedly installed at the top of the connecting frame, the stamping assembly is fixedly installed at one end of the connecting frame and located on the outer side of the U-shaped curved surface workpiece during stamping, and the other end of the connecting frame is fixedly connected with the position adjusting assembly. The bottom of the position adjusting assembly is fixedly connected with a negative pressure drawing assembly matched with the stamping assembly. By means of the mode, the rivet can be automatically removed conveniently, meanwhile, the rivet can be conveniently stretched into an arc-shaped U-shaped curved surface workpiece for riveting, and stamping and riveting of curved surface parts are achieved.

Description

Technical Field

[0001] This utility model relates to the field of riveting technology, specifically to a stamping and riveting equipment for curved parts. Background Technology

[0002] Most automotive parts are formed by stamping equipment. The A, B, and C pillars of automotive parts are generally curved. Sometimes, to increase strength, it is necessary to rivet some reinforcing parts inside key components.

[0003] For example, Chinese patent CN110653322A discloses a riveting device for lightweight aluminum alloy automotive parts, including a base, a vertical plate fixed to the upper surface of the base, a horizontal fixing plate connected to the end of the vertical plate, a hydraulic cylinder fixed to the horizontal fixing plate, a through hole through which the piston rod of the hydraulic cylinder passes, a lifting plate connected to the lower end of the hydraulic cylinder piston rod passing through the horizontal fixing plate, connecting columns connected to the left and right ends of the lower surface of the lifting plate, a riveting mechanism connected to the lower end of the connecting columns, and a cylinder fixed at the center of the lower surface of the lifting plate, with a lifting block connected to the lower end of the piston rod of the cylinder. In the riveting process, this invention achieves clamping, pulling, expansion, and cutting of the rivet solely through the working action of the hydraulic cylinder and the pneumatic cylinder, eliminating the need to apply a large breaking force to break the rivet after it has been pulled, expanded, and shaped. This prevents deformation of lightweight aluminum alloy automotive parts due to excessive breaking force, resulting in a superior overall riveting effect.

[0004] However, the above structure cannot be adapted to stamping and riveting of parts with different curved surfaces.

[0005] Based on this, the present invention designs a stamping and riveting equipment for curved parts to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a stamping and riveting equipment for curved parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A stamping and riveting device for curved parts, including a support carrier;

[0009] The support carrier used for positioning and supporting U-shaped curved workpieces is inserted into the U-shaped curved workpiece;

[0010] The U-shaped curved workpiece is equipped with a riveting assembly for anchor negative pressure suction and stamping riveting.

[0011] The riveting assembly includes a negative pressure pull-out assembly, a position adjustment assembly, a connecting frame, a robot end effector, and a stamping assembly. The robot end effector is fixedly installed on the top of the connecting frame. A stamping assembly is fixedly installed on one end of the connecting frame. During stamping, the stamping assembly is located outside the U-shaped curved workpiece. A position adjustment assembly is fixedly connected to the other end of the connecting frame. A negative pressure pull-out assembly that cooperates with the stamping assembly is fixedly connected to the bottom of the position adjustment assembly.

[0012] Furthermore, the support carrier includes a support plate, a horizontal plate, a contour groove, and a positioning column. The support plate is fixedly connected to both ends of the horizontal plate, and the top of the support plate has a contour groove that is the same as the shape of the U-shaped curved workpiece. The positioning column is fixedly connected to the bottom of the contour groove.

[0013] Furthermore, the top of the positioning post has an arc-shaped chamfered structure.

[0014] Furthermore, the position adjustment component includes a guide rail, a drive component, a mounting plate, and a slider. The drive component is fixedly installed at the other end of the connecting frame, and the drive end of the drive component is fixedly connected to the mounting plate. The top of the mounting plate is fixedly connected to the slider, which is in a limiting sliding connection with the guide rail. The guide rail is fixedly installed at the top inside the connecting frame.

[0015] Furthermore, the tilt angle of the guide rail is the same as the tilt angle of the rivet hole.

[0016] Furthermore, the negative pressure suction assembly includes an air guide tube, a slot, a riveting support base, and a mounting block. The riveting support base is fixedly installed on the lower end of the mounting plate. The end of the riveting support base near the stamping assembly has a slot for inserting the thick end of the anchor nail. The air guide tube is fixedly connected to the riveting support base and communicates with the slot. The mounting block is fixedly connected to the air guide tube and is fixedly connected to the side wall of the connecting frame.

[0017] Furthermore, the air duct is fixedly connected to an external air pressure control device.

[0018] Furthermore, the stamping assembly includes a riveting hydraulic cylinder and a riveting head. The riveting hydraulic cylinder is fixedly installed at the bottom of the other end of the connecting frame, and the driving end of the riveting hydraulic cylinder is fixedly connected to the riveting head.

[0019] Beneficial effects

[0020] This invention positions and installs a U-shaped curved workpiece on a support carrier, then installs the U-shaped connector in the corresponding position. The position adjustment component of the riveting assembly drives the negative pressure suction component to move away from the stamping assembly. Then, the robot end effector moves, driving the connecting frame to move. The connecting frame then drives the negative pressure suction component to move above the external anchor supply equipment, whereby the negative pressure suction component is inserted into the outer side of the thicker end of the anchor. The negative pressure suction component creates negative pressure to suck the anchor from the external anchor supply equipment. The robot end effector then drives the negative pressure suction component to suck the anchor. Move to the position where riveting is required, with the anchor pin aligned with the riveting hole between the U-shaped curved workpiece and the U-shaped connector. The position adjustment component drives the negative pressure suction component to move, which in turn drives the anchor pin through the riveting hole. The stamping component and the negative pressure suction component then perform stamping and riveting. Afterward, the negative pressure suction component is restored to normal pressure, and the position adjustment component drives the negative pressure suction component to move away from the outside of the stamping component. Simultaneously, the stamping component retracts, facilitating automatic anchor pin removal and allowing it to extend into the curved U-shaped workpiece for riveting, thus achieving stamping and riveting of curved parts. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This utility model provides a three-dimensional structure for a stamping and riveting equipment for curved parts. Figure 1 ;

[0023] Figure 2 This is a front view of the structure of a stamping and riveting equipment for curved parts according to this utility model;

[0024] Figure 3 This is a left view of the structure of a stamping and riveting equipment for curved parts according to this utility model;

[0025] Figure 4 This utility model provides a three-dimensional structure for a stamping and riveting equipment for curved parts. Figure 2 ;

[0026] Figure 5 For along Figure 3 A sectional view along the AA direction;

[0027] Figure 6 This is a schematic diagram of the riveting assembly structure.

[0028] The labels in the diagram represent:

[0029] 1. Support carrier 11. Support plate 12. Horizontal plate 13. Contouring groove 14. Positioning post 2. U-shaped curved surface workpiece 3. U-shaped connector 4. Reinforcing plate 5. Riveting assembly 51. Riveting hydraulic cylinder 52. Connecting frame 53. Robot end effector 54. Guide rail 55. Drive assembly 56. Air duct 57. Slot 58. Riveting head 59. Riveting support seat 510. Mounting plate 511. Slider 512. Mounting connecting block 6. Through hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] The U-shaped connector 3 has a reinforcing plate 4 welded in the middle. The U-shaped connector 3 has rivet holes stamped on both sides of the reinforcing plate 4. The U-shaped curved workpiece 2 also has corresponding rivet holes stamped at the rivet holes of the U-shaped connector 3.

[0033] Example 1

[0034] Please refer to the instruction manual appendix. Figure 1-6 A stamping and riveting equipment for curved parts, including a support carrier 1;

[0035] The support carrier 1 used for positioning and supporting the U-shaped curved workpiece 2 is inserted into the U-shaped curved workpiece 2;

[0036] The U-shaped curved workpiece 2 is provided with a riveting assembly 5 above it for anchor negative pressure suction and stamping riveting;

[0037] The riveting assembly 5 includes a negative pressure pulling assembly, a position adjustment assembly, a connecting frame 52, a robot end effector 53, and a stamping assembly. The robot end effector 53 is fixedly installed on the top of the connecting frame 52. A stamping assembly is fixedly installed on one end of the connecting frame 52. When stamping, the stamping assembly is located outside the U-shaped curved workpiece 2. A position adjustment assembly is fixedly connected to the other end of the connecting frame 52. A negative pressure pulling assembly that cooperates with the stamping assembly is fixedly connected to the bottom of the position adjustment assembly.

[0038] The external anchor supply equipment uses a relatively mature automated anchor structure.

[0039] The U-shaped curved workpiece 2 is positioned and installed on the support carrier 1. Then, the U-shaped connector 3 is installed in the corresponding position. The position adjustment component of the riveting assembly 5 drives the negative pressure suction assembly to move away from the stamping assembly. Then, the robot end effector 53 moves, which drives the connecting frame 52 to move. The connecting frame 52 drives the negative pressure suction assembly to move above the external anchor supply equipment. Then, the negative pressure suction assembly is inserted into the outer side of the thicker end of the anchor. The negative pressure suction assembly creates negative pressure to suck the anchor from the external anchor supply equipment. The robot end effector 53 drives the negative pressure suction of the anchor. The moving component moves to the position where riveting is required, with the anchor pin facing the riveting hole between the U-shaped curved workpiece 2 and the U-shaped connector 3. The position adjustment component drives the negative pressure pulling component to move, and the negative pressure pulling component drives the anchor pin through the riveting hole. The stamping component and the negative pressure pulling component stamp and rivet together. Then, the negative pressure pulling component returns to the normal pressure state. Then, the position adjustment component drives the negative pressure pulling component to move away from the outside of the stamping component. At the same time, the stamping component is retracted, which facilitates automatic removal of the anchor pin and also facilitates extending into the arc-shaped U-shaped curved workpiece 2 for riveting, realizing the stamping and riveting of curved parts.

[0040] Support carrier 1 includes support plate 11, horizontal plate 12, contour groove 13 and positioning column 14. Support plate 11 is fixedly connected to both ends of horizontal plate 12. Contour groove 13 with the same shape as U-shaped curved surface workpiece 2 is opened on the top of support plate 11. Positioning column 14 is fixedly connected to the bottom of contour groove 13.

[0041] The top of the positioning post 14 has an arc-shaped chamfered structure;

[0042] The U-shaped curved workpiece 2 is inserted into the contour groove 13 of the support carrier 1, and the through hole 6 of the U-shaped curved workpiece 2 is inserted into the outside of the positioning post 14. The two sets of contour grooves 13 and the two sets of through holes 6 cooperate to realize the positioning and support of the U-shaped curved workpiece 2.

[0043] The position adjustment assembly includes a guide rail 54, a drive assembly 55, a mounting plate 510, and a slider 511. The drive assembly 55 is fixedly installed at the other end of the connecting frame 52. The drive end of the drive assembly 55 is fixedly connected to the mounting plate 510. The top of the mounting plate 510 is fixedly connected to the slider 511. The slider 511 is limited and slidably connected to the guide rail 54. The guide rail 54 is fixedly installed at the top inside the connecting frame 52.

[0044] The tilt angle of guide rail 54 is the same as the tilt angle of the rivet hole;

[0045] The negative pressure suction assembly includes an air guide tube 56, a slot 57, a riveting support base 59, and a mounting connection block 512. The riveting support base 59 is fixedly installed on the lower end of the mounting plate 510. The end of the riveting support base 59 near the stamping assembly has a slot 57 for inserting the thick end of the anchor nail. The air guide tube 56 is fixedly connected to the riveting support base 59. The air guide tube 56 communicates with the slot 57. The mounting connection block 512 is fixedly connected to the air guide tube 56, and the mounting connection block 512 is fixedly connected to the side wall of the connecting frame 52.

[0046] The air duct 56 is fixedly connected to an external air pressure control device;

[0047] The stamping assembly includes a riveting hydraulic cylinder 51 and a riveting head 58. The riveting hydraulic cylinder 51 is fixedly installed at the bottom of the other end of the connecting frame 52, and the driving end of the riveting hydraulic cylinder 51 is fixedly connected to the riveting head 58.

[0048] The U-shaped curved workpiece 2 is positioned and installed on the support carrier 1. Then, the U-shaped connector 3 is installed in the corresponding position. The drive component 55 of the position adjustment component of the riveting assembly 5 drives the mounting plate 510 to move. With the cooperation of the guide rail 54 and the slider 511, the mounting plate 510 moves away from the stamping assembly. Then, the robot end effector 53 moves, which drives the connecting frame 52 to move. The connecting frame 52 drives the mounting plate 510 of the negative pressure suction component to move. The mounting plate 510 drives the riveting support seat 59 to move. The riveting support seat 59 moves above the external anchor supply equipment, and then drives the slot 57 of the negative pressure suction component to be inserted into the outside of the thicker end of the anchor. The external air pressure control equipment draws air from the air guide pipe 56 and the slot 57, forming a negative pressure suction in the air guide pipe 56 and the slot 57 of the negative pressure suction component. Anchor pins are removed from the external anchor pin supply equipment. The robot end effector 53 drives the negative pressure suction component of the anchor pin to move the riveting support 59 to the required riveting position, with the anchor pin directly facing the riveting hole between the U-shaped curved workpiece 2 and the U-shaped connector 3. The drive component 55 of the position adjustment component drives the mounting plate 510 to move. The mounting plate 510 drives the anchor pin adsorbed in the air duct 56 through the riveting hole. The riveting hydraulic cylinder 51 of the stamping component drives the riveting head 58 to move. The riveting head 58 and the riveting support 59 of the negative pressure suction component cooperate to perform stamping and riveting. Then, the slot 57 of the negative pressure suction component is restored to the normal pressure state. Then, the position adjustment component drives the negative pressure suction component to move away from the outside of the stamping component. At the same time, the stamping component is retracted, realizing the stamping and riveting of the curved part.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A curved surface part stamping riveting equipment comprising a support carrier (1), characterized in that: the support carrier (1) for positioning and supporting the U-shaped curved surface workpiece (2) is inserted with the U-shaped curved surface workpiece (2); a riveting assembly (5) for anchor nail negative pressure suction and stamping riveting is arranged above the U-shaped curved surface workpiece (2); the riveting assembly (5) comprises a negative pressure suction assembly, a position adjusting assembly, a connecting frame (52), a robot end (53) and a stamping assembly, the robot end (53) is fixedly installed at the top of the connecting frame (52), one end of the connecting frame (52) is fixedly installed with the stamping assembly, the stamping assembly is located outside the U-shaped curved surface workpiece (2) when stamping, the other end of the connecting frame (52) is fixedly connected with the position adjusting assembly, and the bottom of the position adjusting assembly is fixedly connected with the negative pressure suction assembly matched with the stamping assembly. The support carrier (1) comprises a support plate (11), a cross plate (12), a profiling groove (13) and a positioning column (14), the cross plate (12) is fixedly connected with the support plate (11) at both ends, the profiling groove (13) with the same shape as the U-shaped curved surface workpiece (2) is arranged at the top of the support plate (11), and the bottom of the profiling groove (13) is fixedly connected with the positioning column (14). The top of the positioning column (14) is an arc chamfer structure. The position adjusting assembly comprises a guide rail (54), a driving assembly (55), a mounting plate (510) and a sliding block (511), the driving assembly (55) is fixedly installed at the other end of the connecting frame (52), the driving end of the driving assembly (55) is fixedly connected with the mounting plate (510), the top of the mounting plate (510) is fixedly connected with the sliding block (511), the sliding block (511) is limitingly and slidably connected with the guide rail (54), and the guide rail (54) is fixedly installed at the top of the connecting frame (52).

2. The cam surface part press-riveting apparatus according to claim 1, characterized by The inclination angle of the guide rail (54) is the same as the inclination angle of the riveting hole.

3. The cam surface part press-riveting apparatus according to claim 2, characterized by The negative pressure suction assembly comprises an air guide pipe (56), a slot (57), a riveting support seat (59) and a mounting connecting block (512), the riveting support seat (59) is fixedly installed at the lower end of the mounting plate (510), the end close to the stamping assembly of the riveting support seat (59) is provided with the slot (57) for inserting the anchor nail thick end, the riveting support seat (59) is fixedly connected with the air guide pipe (56), the air guide pipe (56) is communicated with the slot (57), the air guide pipe (56) is fixedly connected with the mounting connecting block (512), and the mounting connecting block (512) is fixedly connected with the side wall of the connecting frame (52).

4. The cam surface part press-riveting apparatus according to claim 3, characterized by The air guide pipe (56) is fixedly connected with the external air pressure control equipment.

5. The press-riveting apparatus for a curved part according to any one of claims 1 to 4, characterized in that, The stamping assembly comprises a riveting hydraulic cylinder (51) and a riveting head (58), the riveting hydraulic cylinder (51) is fixedly installed at the bottom of the other end of the connecting frame (52), and the driving end of the riveting hydraulic cylinder (51) is fixedly connected with the riveting head (58).

6. The cam surface part press-riveting apparatus according to claim 1, characterized by ​ 7. The cam surface part press-riveting apparatus according to claim 6, characterized by ​ 8. The cam surface part press-riveting apparatus according to claim 7, characterized by ​

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