High-efficiency precise snap type automatic spin riveting connection equipment

Abstract

The utility model relates to riveting equipment technical field discloses high -efficient accurate buckle formula automatic riveting connection equipment, including bearing table, is provided with lifting unit on the bearing table, and lifting unit includes lifting rod, is provided with riveting unit on lifting unit, is provided with fixed ring on the lifting rod, is provided with a plurality of convex stripes outside fixed ring, is provided with gas ring outside fixed ring, and one side of gas ring away from lifting rod is provided with protective cover, and spring is provided with outside fixed ring, and spring connects gas ring, lifting rod respectively, through setting up the protective cover, when the lifting rod is descending, the protective cover slides along the fixed ring, and spring deformation, when riveting head contacts rivet, and the fragment that rivet deformation tear produces is intercepted in the protective cover, simultaneously using steel wire net to increase the structural strength of protective cover, and then the security when riveting operation has been improved.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and in particular to a high-efficiency and precise snap-fit ​​automatic riveting connection device. Background Technology

[0002] Spin riveting equipment is a precision riveting device developed based on the principle of cold plastic deformation, originating in the aerospace manufacturing field in the mid-20th century. Early traditional stamping riveting suffered from problems such as high pressure and easy damage to the workpiece. Spin riveting technology emerged due to its unique advantages of "localized pressing + compound motion." Its core is to achieve step-by-step plastic flow of the rivet material through a compound motion of axial pressure and eccentric oscillation of the riveting head, resulting in a low-stress, high-quality connection. After decades of development, the equipment has evolved from manually operated mechanical models to servo-controlled intelligent models, and is widely used in automobile manufacturing, electronics, medical devices, and other fields. Compared to traditional processes, riveting equipment can reduce riveting force by 50%-70%, and is especially suitable for sensitive materials such as high-strength alloys and thin-walled parts. It can effectively reduce defects such as cracks and deformation, and has become an indispensable key equipment in modern precision manufacturing.

[0003] During the riveting process, when the riveting head comes into contact with the rivet, the rivet is subjected to the action of the riveting head, and high-frequency extrusion and friction occur between it and the workpiece. The riveting head applies a combined force of axial pressure and radial eccentric oscillation to the rivet. Due to the limited plastic deformation of high-hardness materials (such as high-strength steel), under the repeated action of force, high-hardness materials are prone to local tearing. The fragments generated by the tearing at the edge of the rivet will gain kinetic energy due to the instantaneous force, which will cause the fragments to fly out. The flying fragments pose a risk of hitting surrounding personnel and equipment, resulting in poor safety performance when the equipment is used. Utility Model Content

[0004] In view of the problems of the above-mentioned efficient and precise automatic snap-fit ​​connection equipment, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A high-efficiency and precise snap-fit ​​automatic riveting connection device includes a support platform, an operating table on the support platform, a lifting unit on the support platform, a lifting rod on the lifting unit, and a motor (Motor 1) on the lower surface of the support platform. The output shaft of Motor 1 passes through the support platform, and a lead screw is coaxially connected to the output shaft of Motor 1. A protective frame is provided on the upper surface of the support platform. The end of the lead screw away from Motor 1 is rotatably connected to the protective frame, and a lead screw nut is provided on the lead screw. The lifting rod is linearly slidably mounted on the protective frame, and the lifting rod is fixedly connected to the lead screw nut. A riveting unit is provided on the lifting unit, including a second motor (Motor 2) on the upper surface of the lifting rod. The output shaft of Motor 2 passes through the lifting rod, and a rivet head seat is coaxially connected to the output shaft of Motor 2. A riveting head is provided on the rivet head seat. A fixing ring is provided on the lifting rod, and multiple protrusions are provided on the outer side of the fixing ring. An air ring is fitted on the outer side of the fixed ring, and multiple grooves are opened on the inner side of the air ring. The protrusions are engaged and slidably disposed in the grooves. A protective cover is provided on the side of the air ring away from the lifting rod. A spring is fitted on the outer side of the fixed ring, and the spring is connected to the air ring and the lifting rod respectively.

[0006] As a preferred embodiment of the efficient and precise snap-fit ​​automatic riveting connection device of this utility model, the protective cover includes an endoscope, the outside of which is covered with a wire mesh. The endoscope is preferably made of acrylic material. The connection status of the rivets inside the protective cover can be clearly observed through the endoscope. The wire mesh can effectively increase the overall structural strength of the protective cover, thereby intercepting flying debris.

[0007] As a preferred embodiment of the efficient and precise snap-fit ​​automatic riveting connection device of this utility model, an air pump is sleeved on the outside of the fixing ring. The air pump is connected to the air ring and the lifting rod respectively. The air pump is in the shape of an annular cylinder. The spring and the fixing ring are both located inside the air pump. A one-way valve is provided on the air pump, and external gas can enter the air pump through the one-way valve.

[0008] As a preferred embodiment of the efficient and precise snap-fit ​​automatic riveting connection device of this utility model, the air ring is provided with an air chamber, and a one-way valve is provided on the air ring. The air chamber is connected to the inside of the air pump. The one-way valve is provided at the connection between the air chamber and the air pump. The gas inside the air pump can enter the air chamber through the one-way valve.

[0009] As a preferred embodiment of the efficient and precise snap-fit ​​automatic riveting connection device of this utility model, wherein: air supply pipes are symmetrically arranged on the air ring, a cleaning pipe is arranged at the end of the air supply pipe away from the air ring, the cleaning pipe is hinged to the air supply pipe, and a torsion spring is arranged at the connection between the cleaning pipe and the air supply pipe.

[0010] As a preferred embodiment of the high-efficiency and precise snap-fit ​​automatic riveting connection device of this utility model, the protective cover is provided with symmetrical clearance grooves, the air supply pipe is provided with an air supply groove, and the cleaning pipe is provided with a cleaning groove.

[0011] The beneficial effects of this utility model are: 1. By setting up a protective cover, when the lifting rod descends, the protective cover slides along the fixed ring and the spring deforms. When the riveting head contacts the rivet, the fragments generated by the deformation and tearing of the rivet will be intercepted inside the protective cover. At the same time, the steel wire mesh is used to increase the structural strength of the protective cover, thereby improving the safety of riveting operations. 2. By setting up an air ring, air supply pipe, and cleaning pipe, the gas in the air pump is temporarily stored in the air chamber during the riveting head's operation. When the riveting head finishes its operation, the gas in the air chamber will be discharged through the air supply groove and cleaning groove and directed towards the riveting head, thereby pneumatically cleaning the debris remaining at the working end of the riveting head. At the same time, it can increase the gas flow rate around the riveting head, thereby reducing the temperature of the riveting head, reducing the risk of damage to the riveting head, and further improving the safety of riveting operations. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them: Figure 1 This is a schematic diagram of the overall structure of the high-efficiency and precise snap-fit ​​automatic riveting connection equipment of this utility model.

[0013] Figure 2 This is a schematic diagram of a partial explosion of the high-efficiency and precise snap-fit ​​automatic riveting connection device of this utility model.

[0014] Figure 3 This is a schematic diagram of the clearance groove and cleaning pipe of the high-efficiency and precise snap-fit ​​automatic riveting connection equipment of this utility model.

[0015] Figure 4 This is a half-sectional structural diagram of the cleaning pipe and air supply pipe of the high-efficiency and precise snap-fit ​​automatic riveting connection equipment of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Support platform; 11. Lifting rod; 12. Fixing ring; 13. Raised strip; 14. Air ring; 15. Protective cover; 16. Air pump; 17. Air supply pipe; 171. Air supply trough; 18. Cleaning pipe; 181. Cleaning trough. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0018] Reference Figure 1-2 This is the first embodiment of the present invention, which provides an efficient and precise hook-and-loop automatic riveting connection device. This efficient and precise hook-and-loop automatic riveting connection device includes a support platform 1, an operating table on the support platform 1, a lifting unit on the support platform 1, a lifting rod 11 on the lifting unit, and a motor 1 on the lower surface of the support platform 1. The output shaft of the motor 1 passes through the support platform 1, and a lead screw is coaxially connected to the output shaft of the motor 1. A protective frame is provided on the upper surface of the support platform 1. The end of the lead screw away from the motor 1 is rotatably connected to the protective frame. A lead screw nut is provided on the lead screw. The lifting rod 11 is linearly slidably disposed on the protective frame and is fixedly connected to the lead screw nut. A riveting unit is provided on the lifting unit. The riveting unit includes a motor 2 on the upper surface of the lifting rod 11. The output shaft of the motor 2 passes through the lifting rod 11, and a rivet head seat is coaxially connected to the output shaft of the motor 2. A riveting head is provided on the rivet head seat. A fixing ring 12 is provided on the lifting rod 11, and multiple protrusions 13 are provided on the outer side of the fixing ring 12. An air ring 14 is fitted on the outside of the fixed ring 12. Multiple grooves are opened on the inner side of the air ring 14. The protrusion 13 is engaged and slidably disposed in the groove. A protective cover 15 is provided on the side of the air ring 14 away from the lifting rod 11. A spring is fitted on the outside of the fixed ring 12. The spring is connected to the air ring 14 and the lifting rod 11 respectively.

[0019] The protective cover 15 includes an endoscope, the outside of which is covered with a wire mesh. The endoscope is preferably made of acrylic material. The connection status of the rivets inside the protective cover 15 can be clearly seen through the endoscope. The wire mesh can effectively increase the overall structural strength of the protective cover 15, thereby intercepting flying debris.

[0020] During use, the workpiece to be riveted and the rivets are first placed on the operating table. Then, motor two is started. At this time, the output shaft of motor two will drive the rivet head seat to rotate. The rotation of the rivet head seat will drive the riveting head to rotate synchronously. Then, motor one is started. At this time, the output shaft of motor one will drive the lead screw to rotate. When the lead screw rotates, since the lead screw nut is fixedly connected to the lifting rod 11, the lifting rod 11 is limited by the protective frame. As a result, when the lead screw rotates, the lead screw nut drives the lifting rod 11 to move towards the bearing platform 1. As the lifting rod 11 gradually moves, the protective cover 15 first contacts the support platform 1. The continued descent of the lifting rod 11 will cause the spring to deform. Then, through the protective cover 15, one can see the riveting head contacting the rivet. The riveting head then squeezes the rivet, causing the workpiece to be riveted. Under the squeezing force of the riveting head, the rivet deforms. When the rivet edge is partially torn and fragments are generated, the fragments are energized by the riveting head and fly. At this time, the protective cover 15 can intercept the flying fragments. Example 2

[0021] Reference Figure 1-4 This is the second embodiment of the present invention, which differs from the first embodiment in that: An air pump 16 is fitted on the outside of the fixed ring 12. The air pump 16 is connected to the air ring 14 and the lifting rod 11. The air pump 16 is in the shape of an annular cylinder. The spring and the fixed ring 12 are both located inside the air pump 16. A one-way valve is provided on the air pump 16, and external gas can enter the air pump 16 through the one-way valve.

[0022] An air chamber is provided inside the air ring 14, and a one-way valve 2 is provided on the air ring 14. The air chamber is connected to the inside of the air pump 16. The one-way valve 2 is located at the connection between the air chamber and the air pump 16. The gas inside the air pump 16 can enter the air chamber through the one-way valve 2.

[0023] A gas supply pipe 17 is symmetrically arranged on the gas ring 14. A cleaning pipe 18 is provided at the end of the gas supply pipe 17 away from the gas ring 14. The cleaning pipe 18 is hinged to the gas supply pipe 17. A torsion spring is provided at the connection between the cleaning pipe 18 and the gas supply pipe 17.

[0024] The protective cover 15 is symmetrically provided with clearance grooves, the air supply pipe 17 is provided with an air supply groove 171, and the cleaning pipe 18 is provided with a cleaning groove 181.

[0025] During use, when the lifting rod 11 descends toward the support platform 1, the spring deforms and the gap between the air ring 14 and the lifting rod 11 gradually decreases, and the air pump 16 is gradually squeezed. At this time, the gas in the air pump 16 will enter the air chamber through the one-way valve 2. At this time, the cleaning pipe 18 is limited by the fixing ring 12, and then the positions of the air delivery groove 171 and the cleaning groove 181 are misaligned. The cleaning pipe 18 is at the opening of the clearance groove, and the gas pressure inside the air chamber increases. After riveting is completed, the lifting rod 11 gradually moves away from the support platform 1, and then the cleaning pipe 18 separates from the fixing ring 12. At this time, the cleaning pipe 18 begins to rotate under the action of the torsion spring. Under the action of the clearance groove, the end of the cleaning pipe 18 away from the air supply pipe 17 will face the direction of the riveting head. At the same time, the air supply groove 171 and the cleaning groove 181 overlap with each other. The high-pressure gas in the air chamber can enter the cleaning groove 181 through the air supply groove 171, and then be sprayed onto the riveting head through the cleaning groove 181.

[0026] The remaining structure is the same as that in Example 1.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency and precise snap-fit ​​automatic riveting connection device, comprising a support platform (1), wherein a lifting unit is provided on the support platform (1), the lifting unit includes a lifting rod (11), and a riveting unit is provided on the lifting unit, characterized in that, A fixing ring (12) is provided on the lifting rod (11), and multiple protrusions (13) are provided on the outside of the fixing ring (12). An air ring (14) is fitted on the outside of the fixed ring (12). A protective cover (15) is provided on the side of the air ring (14) away from the lifting rod (11). A spring is fitted on the outside of the fixed ring (12). The spring is connected to the air ring (14) and the lifting rod (11) respectively.

2. The high-efficiency and precise snap-fit ​​automatic riveting connection equipment according to claim 1, characterized in that: The protective cover (15) includes an endoscope, the outside of which is covered with wire mesh, and the endoscope is made of acrylic material.

3. The high-efficiency and precise snap-fit ​​automatic riveting connection equipment according to claim 1, characterized in that: An air pump (16) is fitted on the outside of the fixed ring (12), and the air pump (16) is connected to the air ring (14) and the lifting rod (11).

4. The high-efficiency and precise snap-fit ​​automatic riveting connection equipment according to claim 1, characterized in that: An air chamber is provided inside the air ring (14), and a one-way valve is provided on the air ring (14).

5. The high-efficiency and precise snap-fit ​​automatic riveting connection equipment according to claim 1, characterized in that: The gas ring (14) is symmetrically provided with gas delivery pipes (17), and a cleaning pipe (18) is provided at the end of the gas delivery pipe (17) away from the gas ring (14). The cleaning pipe (18) is hinged to the gas delivery pipe (17).

6. The high-efficiency and precise snap-fit ​​automatic riveting connection equipment according to claim 5, characterized in that: The protective cover (15) is symmetrically provided with clearance grooves, the gas supply pipe (17) is provided with a gas supply groove (171), and the cleaning pipe (18) is provided with a cleaning groove (181).

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