Gantry press-in support mechanism

Abstract

The utility model belongs to the field of pressure riveting combination, concretely relates to a gantry pressure riveting support mechanism, especially a small -size gantry pressure riveting support mechanism, including small gantry support, sliding platform, clamping jaw subassembly, dot mechanism, support platform and detection subassembly, the right side fixed mounting of sliding platform drag chain support, the small gantry support includes U -shaped stand, lid support ring, pressure riveting pin one and pressure riveting pin two, the bottom both sides of lid support ring all are provided with U -shaped stand, and lid support ring and U -shaped stand form the detachable gantry structure of pressure riveting pin one and pressure riveting pin two, and the head of pressure riveting pin one and pressure riveting pin two are all 1:1 profiled lid pressure riveting hole's inner hole structure. The utility model uses, through profiled pin positioning and elastic support structure, solves the uneven stress problem caused by manual positioning, avoids workpiece warping, riveting deviation and pressure riveting round size deviation, and the pressure riveting qualified rate is improved significantly.

Description

Technical Field

[0001] This utility model belongs to the field of riveting assembly, specifically, it relates to a gantry riveting support mechanism, and more particularly to a small gantry riveting support mechanism. Background Technology

[0002] In the press riveting manufacturing industry, press riveting is a common connection method, widely used in electronic chassis, communication equipment housings, automotive parts, and other fields. Traditional press riveting processes typically involve manually fixing the workpiece or using simple clamps for positioning, lacking an effective support structure. This leads to uneven stress during the press riveting process, easily causing problems such as workpiece warping, riveting position misalignment, and inconsistent riveting circle sizes. Furthermore, existing press riveting equipment is mostly a large gantry structure, bulky and unsuitable for the flexible processing needs of small and medium-sized workpieces. Therefore, there is an urgent need to provide a press riveting support mechanism with a reasonable structure, convenient adjustment, and suitable for small workpieces to solve the above problems. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the purpose of this invention is to provide a gantry riveting support mechanism.

[0004] According to the present invention, a gantry riveting support mechanism includes a small gantry bracket, a sliding platform, a gripper assembly, a dotting mechanism, a support platform, and a detection assembly, wherein a drag chain bracket is fixedly installed on the right side of the sliding platform;

[0005] The small gantry support includes a U-shaped column, a cover support ring, a first press-fit pin, and a second press-fit pin. The bottom left and right sides of the cover support ring are provided with U-shaped columns. The cover support ring and the U-shaped columns form a detachable gantry structure. The heads of the first press-fit pin and the second press-fit pin are both 1:1 conformal inner hole structures of the cover press-fit hole.

[0006] In a preferred embodiment: the U-shaped column is vertically fixed to the sliding platform by threaded bolts through the opening mounting holes. The cover support ring has cover support ring mounting holes corresponding to the two U-shaped columns. Press-fit pin one is set to correspond to the cover support ring mounting hole on the left side of the cover support ring, and press-fit pin two is set to correspond to the cover support ring mounting hole on the right side of the cover support ring. The cover support ring has a plurality of press-fit pin mounting holes, and corresponding positioning pins are set in the press-fit pin mounting holes.

[0007] In a preferred embodiment: a lead screw connecting nut is fixedly installed at the bottom of the sliding platform. The lead screw connecting nut is used to connect the lead screw module. Guide rail mounting grooves are opened on both the left and right sides of the bottom surface of the sliding platform. Guide rails are installed in the guide rail mounting grooves. The sliding platform can move horizontally along the direction of the lead screw.

[0008] In a preferred embodiment: the gripper assembly includes grippers, gripper cylinders, and a pair of optical fibers. The gripper cylinder has several gripper cylinder mounting holes. The gripper cylinder is fixed to the sliding platform by screws that engage with the gripper cylinder mounting holes. Two slidable grippers are provided on the top of the gripper cylinder. The grippers are connected to the cylinder output end. The gripper cylinder controls the opening and closing between the two grippers. The pair of optical fibers is arranged above the grippers. The gripper cylinder magnetic clamping position is installed at the extended end of the cylinder barrel, and the gripper cylinder magnetic opening position is installed at the retracted end of the cylinder barrel.

[0009] In a preferred embodiment: the dotting mechanism includes a dotting cylinder, a dotting in-situ magnetic switch, a dotting extension magnetic switch, a dotting cylinder mounting plate, a dotting protective cover, and a dotting needle. The cylinder body of the dotting cylinder is fixedly connected to the mounting plate, and the mounting plate is fixedly mounted on the left side of the sliding platform. The tail end of the dotting needle moves through the dotting cylinder mounting plate and is fixed to the piston rod end of the dotting cylinder via a quick-change connector. The protective cover is a C-shaped sheet metal part, and the protective cover is fixed to the right side of the mounting plate by a buckle or bolt, completely covering the movement path of the dotting needle. The dotting in-situ magnetic switch is installed near the tail of the cylinder barrel, and the dotting extension magnetic switch is installed at the front end of the cylinder barrel.

[0010] In a preferred embodiment: the support platform includes a tooling top plate, a tooling floating rod, a spring, a linear bearing, a floating gasket, a pressure relief block one, and a pressure relief block two. The top end of the tooling floating rod is rigidly connected to the bottom surface of the tooling top plate through a threaded hole, welding, or a pin. The linear bearing is embedded in the mounting holes at the four corners of the tooling top plate. The tooling floating rod passes through the inner hole of the linear bearing, and the linear bearing and the upper end of the tooling floating rod form a sliding fit. The lower end of the tooling floating rod is fixed to the sliding platform. The spring is coaxially sleeved on the outside of the tooling floating rod. The spring is located between the tooling top plate and the sliding platform. The upper end of the spring abuts against the bottom surface of the tooling top plate, and the lower end of the spring is fixed to the sliding platform.

[0011] In a preferred embodiment: a floating washer mounting threaded hole is provided on the floating rod of the tooling, and the floating washer is installed in the floating washer mounting threaded hole. The floating washer is close to the top plate of the tooling. Pressure relief block one and pressure relief block two are fixedly installed at the bottom of the sliding platform. Pressure relief block one and pressure relief block two are used to bear the reverse support force during riveting.

[0012] In a preferred embodiment: the detection component includes an in-situ sensor one, an in-situ sensor two, and an in-situ sensor protective plate. The in-situ sensor one and the in-situ sensor two are both disposed on the surface of the sliding platform, and the in-situ sensor protective plate is disposed above or to the side of the in-situ sensor one and the in-situ sensor two.

[0013] In a preferred embodiment: the cover support ring is equipped with U-shaped posts of different specifications for selection and replacement to accommodate workpieces of different shapes.

[0014] In a preferred embodiment: The pin heights of the first riveting pin and the second riveting pin are consistent with the riveting height.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the present utility model is used, through the profiling pin positioning and elastic support structure, the problem of uneven force caused by manual positioning is solved, avoiding warping of the workpiece, riveting deviation, and deviation of the riveting circle size, and the riveting qualification rate is significantly improved.

[0017] 2. When the present utility model is used, a modular small gantry structure is adopted, which is compact in volume and supports the replacement of multi-specification columns, is suitable for flexible processing of medium and small workpieces, breaks through the limitations of traditional large equipment, and improves production efficiency and the utilization rate of production line space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present invention will become more obvious:

[0019] Figure 1 It is a schematic diagram of the general assembly structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the front view structure of the present utility model in the X-direction cross-section;

[0021] Figure 3 It is a schematic diagram of the front view structure of the present utility model in the Y-direction cross-section;

[0022] Figure 4 It is a schematic diagram of the structure of the first riveting pin and the second riveting pin of the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the jaw assembly of the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the dotting mechanism of the present utility model;

[0025] Figure 7 It is a schematic diagram of the structure supporting the small gantry riveting mechanism of the present utility model;

[0026] Figure 8 It is a schematic diagram of the structure of the small gantry bracket of the present utility model;

[0027] Shown in the figure:

[0028]

[0029] DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0031] like Figures 1-8 As shown, this utility model discloses a gantry riveting support mechanism, including a small gantry bracket 4, a sliding platform 22, a gripper assembly, a dotting mechanism, a support platform, and a detection assembly. A drag chain bracket 3 is fixedly installed on the right side of the sliding platform 22. The drag chain bracket 3 ensures that the electrical wires, sensor wires, and through-beam optical fiber wires designed for the mechanism will not be damaged as the mechanism moves.

[0032] The small gantry support 4 includes U-shaped columns, a cover support ring 7, a first rivet pin 12, and a second rivet pin 18. U-shaped columns are provided on both the left and right sides of the bottom of the cover support ring 7. The cover support ring 7 and the U-shaped columns form a detachable gantry structure. The cover support ring 7 is equipped with U-shaped columns of different specifications for selection and replacement to accommodate different round workpieces. The U-shaped columns are vertically fixed to the sliding platform 22 by using threaded bolts that engage with the mounting holes, thus securing them to different types of worktables or machine tools, increasing adaptability. The cover support ring 7 has cover support ring mounting holes 5 corresponding to the two U-shaped columns. The first rivet 12 is set to correspond to the cover support ring mounting hole 5 on the left side of the cover support ring 7, and the second rivet 18 is set to correspond to the cover support ring mounting hole 5 on the right side of the cover support ring 7. The cover support ring 7 has several rivet mounting holes 11, and corresponding positioning pins are set in the rivet mounting holes 11. By passing the positioning pins through the rivet mounting holes 11, the cover support ring 7 is positioned and fixed on the U-shaped column. The heads of the first rivet 12 and the second rivet 18 are both 1:1 conformal to the inner hole structure of the cover rivet hole. The pin height is consistent with the rivet height. The precise positioning of the cover and the product is achieved through the pin hole positioning.

[0033] The bottom of the sliding platform 22 is fixedly installed with a lead screw connecting nut 27, which is used to connect the lead screw module. Guide rail mounting slots are opened on both the left and right sides of the bottom surface of the sliding platform 22, and guide rails are installed in the guide rail mounting slots. The sliding platform 22 can move horizontally along the direction of the lead screw.

[0034] The gripper assembly includes grippers 8, gripper cylinders 9, and through-beam fiber optic cables 28. The gripper cylinder 9 has several gripper cylinder mounting holes 10. Screws are used to engage with the mounting holes 10 to fix the gripper cylinder 9 to the sliding platform 22. Two slidable grippers 8 are located on the top of the gripper cylinder 9. The grippers 8 are connected to the cylinder output end, and the opening and closing of the two grippers 8 is controlled by the extension and retraction of the gripper cylinder 9. Through-beam fiber optic cables 28 are arranged above the grippers 8. 28 is used to detect whether the cover is placed in place and whether the position is correct. It is linked with the equipment's electrical control system to prevent errors. The gripper cylinder magnetic opening clamping position 31 is installed at the extended end of the cylinder barrel. When the gripper 8 completes the clamping action, the gripper cylinder magnetic opening clamping position 31 is triggered to confirm that the cover has been positioned. The gripper cylinder magnetic opening home position 32 is installed at the retracted end of the cylinder barrel. When the gripper 8 is in the released state, the gripper cylinder magnetic opening home position 32 is triggered by the magnetic ring on the cylinder piston and outputs a signal.

[0035] The dotting mechanism includes a dotting cylinder 13, a dotting in-situ magnetic switch 14, a dotting extension magnetic switch 15, a dotting cylinder mounting plate 16, a dotting protective cover 17, and a dotting needle 24. The cylinder body of the dotting cylinder 13 is fixedly connected to the mounting plate 16. The mounting plate 16 is fixedly mounted on the left side of the sliding platform 22. The tail end of the dotting needle 24 moves through the dotting cylinder mounting plate 16 and is fixed to the piston rod end of the dotting cylinder 15 through a quick-connect coupling. The protective cover 17 is a C-shaped sheet metal part. The protective cover 17 is fixed to the right side of the mounting plate 16 by a buckle or bolt, completely covering the movement path of the dotting needle 24. The dotting in-situ magnetic switch 14 is installed near the tail of the cylinder barrel. It is triggered when the piston rod is fully retracted, indicating that the dotting mechanism is in the initial state. The dotting extension magnetic switch 15 is installed at the front end of the cylinder barrel. It is triggered when the piston rod is fully extended, confirming that the dotting action is completed.

[0036] The support platform includes a tooling top plate 6, a tooling floating rod 30, a spring 19, a linear bearing 25, a floating gasket 2, a pressure relief block 1 26, and a pressure relief block 29. The top of the tooling floating rod 30 is rigidly connected to the bottom surface of the tooling top plate 6 through threaded holes, welding, or pins to ensure the transmission of vertical force. The linear bearing 25 is embedded in the mounting holes at the four corners of the tooling top plate 6. The tooling floating rod 30 passes through the inner hole of the linear bearing 25, and the linear bearing 25 and the upper end of the tooling floating rod 30 form a sliding fit. The lower end of the tooling floating rod 30 is fixed to the sliding platform 22, realizing precise guidance of the tooling top plate 6 in the vertical direction. Spring 19 is coaxially sleeved on the outside of the tooling floating rod 30, located between the tooling top plate 6 and the sliding platform 22. The upper end of spring 19 abuts against the bottom surface of the tooling top plate 6, and the lower end of spring 19 is fixed to the sliding platform 22. A floating washer mounting threaded hole 1 is opened on the tooling floating rod 30, and the floating washer 2 is installed in the floating washer mounting threaded hole 1. The floating washer 2 is close to the upper part of the tooling top plate 6. Pressure relief block 1 26 and pressure relief block 29 are fixedly installed at the bottom of the sliding platform 22. Pressure relief block 1 26 and pressure relief block 29 are used to bear the reverse support force during riveting to prevent the product from being damaged by excessive instantaneous riveting pressure.

[0037] The detection assembly includes an in-situ sensor 1 20, an in-situ sensor 21, and an in-situ sensor protective plate 23. The in-situ sensor 1 20 and the in-situ sensor 21 are both disposed on the surface of the sliding platform 22 and are used to identify the product model and trigger the device to start. The in-situ sensor protective plate 23 is disposed above or to the side of the in-situ sensor 1 20 and the in-situ sensor 21, covering and protecting the in-situ sensor 1 20 and the in-situ sensor 21.

[0038] Working principle

[0039] When using this utility model, the sheet metal cover is first placed on the riveting pin 12 and riveting pin 28 of the small gantry bracket 4. The pins are matched with the inner hole of the cover in a 1:1 conformal fit to ensure accurate positioning. The gripper cylinder 9 drives the gripper 8 to close and hold the bottom of the cover tightly. At the same time, the through-beam fiber optic 28 detects whether the cover is in place. If the position is abnormal, the equipment alarms and is prohibited from starting. The product to be riveted is placed on top of the cover. The in-situ sensor 1 20 and in-situ sensor 2 21 detect the product model and match the corresponding riveting program. The sliding platform 22 moves to the riveting station through the screw module and locks it.

[0040] During riveting, the tooling top plate 6 drives the tooling floating rod 30 to compress the spring 19. The linear bearing 25 ensures vertical movement accuracy and prevents workpiece deformation. If the pressure is overloaded, the pressure relief block 1 26 and pressure relief block 29 absorb the impact force and protect the mechanism. The riveting pin is fully fitted with the cover. The cover support ring 7 and the tooling top plate 6 lift the product to complete the riveting. The sliding platform moves to the inspection station. The vision system, such as a camera, detects the diameter of the riveting circle to determine whether it is qualified. If it is not qualified, the platform moves to the marking station. The marking cylinder 13 drives the marking needle 24 to mark the product surface for easy sorting. The whole process achieves precise riveting and efficient production through mechanical positioning, elastic buffering, pneumatic control and sensor collaboration.

[0041] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A gantry riveting support mechanism, characterized in that, It includes a small gantry bracket (4), a sliding platform (22), a gripper assembly, a dotting mechanism, a support platform, and a detection assembly. The drag chain bracket (3) is fixedly installed on the right side of the sliding platform (22). The small gantry support (4) includes a U-shaped column, a cover support ring (7), a first rivet pin (12) and a second rivet pin (18). The bottom left and right sides of the cover support ring (7) are provided with U-shaped columns. The cover support ring (7) and the U-shaped column form a detachable gantry structure. The heads of the first rivet pin (12) and the second rivet pin (18) are both 1:1 conformal cover rivet hole inner hole structures.

2. The gantry riveting support mechanism according to claim 1, characterized in that, The U-shaped columns are vertically fixed to the sliding platform (22) by threaded bolts through the openings in the mounting holes. The cover support ring (7) has cover support ring mounting holes (5) corresponding to the two U-shaped columns. The first rivet (12) is set to correspond to the cover support ring mounting hole (5) on the left side of the cover support ring (7), and the second rivet (18) is set to correspond to the cover support ring mounting hole (5) on the right side of the cover support ring (7). The cover support ring (7) has several rivet mounting holes (11), and corresponding positioning pins are set in the rivet mounting holes (11).

3. The gantry riveting support mechanism according to claim 1, characterized in that, The bottom of the sliding platform (22) is fixedly installed with a lead screw connecting nut (27), which is used to connect the lead screw module. Guide rail mounting slots are opened on both the left and right sides of the bottom surface of the sliding platform (22), and guide rails are installed in the guide rail mounting slots. The sliding platform (22) can move horizontally along the direction of the lead screw.

4. The gantry riveting support mechanism according to claim 1, characterized in that, The gripper assembly includes grippers (8), gripper cylinders (9), and through-beam fiber optic assembly (28). The gripper cylinder (9) has several gripper cylinder mounting holes (10). The gripper cylinder (9) is fixed to the sliding platform (22) by screws and gripper cylinder mounting holes (10). Two slidable grippers (8) are provided on the top of the gripper cylinder (9). The grippers (8) are connected to the cylinder output end. The gripper cylinder (9) controls the opening and closing between the two grippers (8). Through-beam fiber optic assembly (28) is arranged above the grippers (8). The gripper cylinder magnetic opening clamping position (31) is installed at the extended end of the cylinder barrel, and the gripper cylinder magnetic opening original position (32) is installed at the retracted end of the cylinder barrel.

5. The gantry riveting support mechanism according to claim 1, characterized in that, The dotting mechanism includes a dotting cylinder (13), a dotting in-situ magnetic switch (14), a dotting extension magnetic switch (15), a dotting cylinder mounting plate (16), a dotting protective cover (17), and a dotting needle (24). The cylinder body of the dotting cylinder (13) is fixedly connected to the mounting plate (16). The mounting plate (16) is fixedly mounted on the left side of the sliding platform (22). The tail end of the dotting needle (24) moves through the dotting cylinder mounting plate (16) and is fixed to the piston rod end of the dotting cylinder (15) through a quick-change connector. The protective cover (17) is a C-shaped sheet metal part. The protective cover (17) is fixed to the right side of the mounting plate (16) by a buckle or bolt, completely covering the movement path of the dotting needle (24). The dotting in-situ magnetic switch (14) is installed near the tail of the cylinder barrel, and the dotting extension magnetic switch (15) is installed at the front end of the cylinder barrel.

6. The gantry riveting support mechanism according to claim 1, characterized in that, The support platform includes a tooling top plate (6), a tooling floating rod (30), a spring (19), a linear bearing (25), a floating gasket (2), a pressure relief block one (26), and a pressure relief block two (29). The top end of the tooling floating rod (30) is rigidly connected to the bottom surface of the tooling top plate (6) through a threaded hole, welding, or a pin. The linear bearing (25) is embedded in the mounting holes at the four corners of the tooling top plate (6). The tooling floating rod (30) passes through the inner hole of the linear bearing (25). The linear bearing (25) and the upper end of the tooling floating rod (30) form a sliding fit. The lower end of the tooling floating rod (30) is fixed to the sliding platform (22). The spring (19) is coaxially sleeved on the outside of the tooling floating rod (30). The spring (19) is located between the tooling top plate (6) and the sliding platform (22). The upper end of the spring (19) abuts against the bottom surface of the tooling top plate (6), and the lower end of the spring (19) is fixed to the sliding platform (22).

7. The gantry riveting support mechanism according to claim 6, characterized in that, The tooling floating rod (30) has a floating gasket mounting threaded hole (1), and the floating gasket (2) is installed in the floating gasket mounting threaded hole (1). The floating gasket (2) is close to the top plate (6) of the tooling. Pressure relief block one (26) and pressure relief block two (29) are fixedly installed at the bottom of the sliding platform (22). Pressure relief block one (26) and pressure relief block two (29) are used to bear the reverse support force during riveting.

8. The gantry riveting support mechanism according to claim 1, characterized in that, The detection assembly includes an in-situ sensor one (20), an in-situ sensor two (21), and an in-situ sensor protective plate (23). The in-situ sensor one (20) and the in-situ sensor two (21) are both disposed on the surface of the sliding platform (22), and the in-situ sensor protective plate (23) is disposed above or to the side of the in-situ sensor one (20) and the in-situ sensor two (21).

9. The gantry riveting support mechanism according to any one of claims 1-8, characterized in that, The cover support ring (7) is equipped with U-shaped columns of different specifications for selection and replacement to accommodate different round workpieces.

10. The gantry riveting support mechanism according to any one of claims 1-8, characterized in that, The pin heights of the first (12) and the second (18) press-fit pins are consistent with the press-fit height.

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