Turnover multi-angle core-pulling riveting clamp

Abstract

The utility model belongs to the technical field of riveting clamps, and particularly relates to a turnover multi-angle core-pulling riveting clamp which comprises a frame body, two rotating shafts are rotatably connected to the top of the frame body, a same turnover rack is fixedly connected between the two rotating shafts, one end of the rotating shaft on the right side is fixedly connected with a hand wheel, and the other end of the rotating shaft on the right side is fixedly connected with a core pulling device. A first positioning mechanism and two second positioning mechanisms are arranged on the overturning rack, and an overturning locking mechanism is arranged between the rack body and the rotating shaft on the right side. The riveting device is reasonable in structural design, the first workpiece and the second workpiece to be riveted together can be stably positioned and fixed, the situation that the riveting quality is affected due to displacement and shaking is avoided, the overturning rack can be overturned to the other riveting face through cooperation of the overturning rack and the overturning locking mechanism after one face is riveted, and the riveting quality is guaranteed. And the overturning rack is locked through clamping connection of the locking rod and the outer gear, so that the riveting process of the multi-angle riveting surface is conveniently completed at a time, and the reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of riveting fixture technology, and in particular to a multi-angle reversible core-pulling riveting fixture. Background Technology

[0002] The front compartment crossbeam of a passenger car refers to the crossbeam structure located in the engine compartment at the front of the vehicle. Its main function is to support and connect various components of the car, such as the bumper and radiator. In the event of a collision, the front compartment crossbeam effectively disperses the impact force, protecting the safety of the occupants and other vital components. Blind riveting fixtures are required when riveting the front compartment crossbeam of a passenger car.

[0003] However, the core-pulling riveting fixtures in related technologies still have shortcomings in use. The core-pulling riveting fixtures are relatively fixed. After one side of the workpiece is riveted, the workpiece needs to be disassembled and unloaded, then rotated to change the side, and then clamped and fixed by the core-pulling riveting fixture before the other side of the workpiece can be riveted. This makes the riveting process cumbersome and inconvenient, and greatly reduces the efficiency of riveting. Therefore, we propose a flip-up multi-angle core-pulling riveting fixture to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned shortcomings and propose a flip-up multi-angle core-pulling riveting fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-angle flip-up core-pulling riveting fixture includes a frame. Two rotating shafts are rotatably connected to the top of the frame. A flipping platform is fixedly connected between the two rotating shafts. A handwheel is fixedly connected to one end of the rotating shaft on the right side. A positioning mechanism one and two positioning mechanisms two are provided on the flipping platform. A flipping locking mechanism is provided between the frame and the rotating shaft on the right side. The positioning mechanism one includes two positioning frames and an intermediate frame fixedly connected to the top of the flipping platform, and a cylinder one fixedly connected to the rear of the flipping platform. A rotating block is rotatably connected to the top of the intermediate frame. The rotating block is rotatably connected to the output shaft of the cylinder one. A pressure plate is fixedly connected to the top of the rotating block.

[0007] In a preferred embodiment of this invention, the intermediate frame is located between the two positioning frames, and the intermediate frame is fixedly installed at the middle position on the top of the flipping table.

[0008] As a preferred embodiment of this utility model, the second positioning mechanism includes a mounting frame fixedly connected to the top of the flipping platform, a second cylinder fixedly connected to the mounting frame, a connecting frame fixedly connected to the output shaft of the second cylinder, a connecting arm rotatably connected to the inner walls of the front and rear sides of the connecting frame, a lower pressing block fixedly connected to the connecting arm, and the connecting arm rotatably connected to the inner walls of the front and rear sides of the mounting frame.

[0009] As a preferred embodiment of the present invention, the second positioning mechanism further includes two support seats for supporting the workpiece, and the mounting bracket is located between the two support seats.

[0010] As a preferred embodiment of this utility model, the top of the frame is fixedly connected to two bearing seats, and a bearing is fixedly sleeved inside the bearing seat. The two rotating shafts are respectively fixedly sleeved inside the inner ring of the corresponding bearing.

[0011] In a preferred embodiment of this invention, the flipping locking mechanism includes an external gear fixedly sleeved on the outside of the right-side rotating shaft, a rotating rod rotatably connected to one side of the frame, push-pull rods rotatably connected to both sides of the rotating rod, a common lifting rod rotatably connected between the two push-pull rods, a limit plate fixedly connected to the top of the lifting rod, a return spring fixedly connected to the bottom of the limit plate, a sliding sleeve fixedly connected to the lower end of the return spring, two sliding sleeves fixedly connected to both sides of the frame, and a locking rod fixedly connected to the top of the right-side limit plate, the locking rod being movably engaged in the tooth gap of the external gear.

[0012] As a preferred embodiment of this utility model, an upper sliding sleeve is fixedly connected to one side of the frame, the locking rod is slidably sleeved in the upper sliding sleeve, the two lifting rods are respectively slidably sleeved in the corresponding lower sliding sleeves, and the two return springs are respectively sleeved on the outside of the corresponding lifting rods.

[0013] In a preferred embodiment of this invention, the tops of the two rotating rods are each fixedly connected to a fixing plate by bolts, and the two rotating rods are fixedly connected to two crossbars by the two fixing plates, with foot pedals fixedly connected to the tops of the two crossbars.

[0014] In this utility model, the reversible multi-angle core-pulling riveting fixture places workpiece 1 in two positioning frames and an intermediate frame for positioning. The support seats on the left and right sides can limit the front and rear movement of workpiece 1. Activating cylinder 1 causes its output shaft to extend, which in turn drives the rotating block and the pressure plate to deflect downwards, thus locking workpiece 1. Two workpieces 2 are placed on the top sides of workpiece 1 and supported by the support seats. Then, activating cylinder 2 causes the connecting frame to move upwards. The connecting frame causes the left end of the connecting arm to move upwards and the right end of the connecting arm to move downwards. The right end of the connecting arm causes the lower pressure block to move downwards, pressing down and fixing workpieces 2 and 1. This effectively positions and fixes workpieces 1 and 2, ensuring the quality of the riveting.

[0015] In this utility model, the reversible multi-angle core-pulling riveting fixture, when riveting one side is completed and another side needs to be riveted, the operator steps down on the foot pedal. The foot pedal causes the two crossbars and the fixed plate to move down, the two fixed plates cause the two rotating rods to deflect downward, the two rotating rods cause the four push-pull rods to move down, the four push-pull rods cause the two lifting rods and the limiting plate to move down and squeeze the return spring. The limiting plate on the right side causes the locking rod to move down without engaging the external gear. At this time, the handwheel can be used to rotate the shaft and the flipping table, so that workpiece one and workpiece two can be rotated to another riveting surface. Then the foot pedal is released. At this time, under the elastic force of the return spring, the locking rod moves up and engages in the tooth gap of the external gear, thereby locking the external gear, shaft and flipping table. Then the other side can be riveted.

[0016] This utility model has a reasonable structural design, which can stably position and fix the workpieces 1 and 2 to be riveted together, avoiding displacement and shaking that would affect the quality of riveting. Through the cooperation of the flipping table and the flipping locking mechanism, after one side is riveted, the flipping table can be flipped to another riveting surface, and the flipping table is locked by the locking rod and the external gear. This allows for convenient completion of the riveting process of multiple angle riveting surfaces in one go, with high reliability. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the reversible multi-angle core-pulling riveting fixture proposed in this utility model;

[0018] Figure 2 This is a front view of the reversible multi-angle core-pulling riveting fixture proposed in this utility model;

[0019] Figure 3 This is a top view of the flip-up multi-angle core-pulling riveting fixture proposed in this utility model;

[0020] Figure 4 for Figure 1A schematic diagram of the structure of part A.

[0021] In the diagram: 1. Frame; 2. Bearing seat; 3. Rotating shaft; 4. Tilting platform; 5. Intermediate frame; 6. Handwheel; 7. Tilting locking mechanism; 8. Positioning mechanism two; 9. Positioning frame; 10. Cylinder one; 11. Rotating block; 12. Pressure plate; 701. External gear; 702. Upper sliding sleeve; 703. Locking rod; 704. Foot pedal; 705. Crossbar; 706. Fixing plate; 707. Rotating rod; 708. Push-pull rod; 709. Lifting rod; 710. Lower sliding sleeve; 711. Return spring; 712. Limiting plate; 81. Support seat; 82. Mounting frame; 83. Cylinder two; 84. Connecting frame; 85. Connecting arm; 86. Lower pressure block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A multi-angle flip-up core-pulling riveting fixture includes a frame 1. Two rotating shafts 3 are rotatably connected to the top of the frame 1. A flipping platform 4 is fixedly connected between the two rotating shafts 3. A handwheel 6 is fixedly connected to one end of the right-side rotating shaft 3. A positioning mechanism 1 and two positioning mechanisms 2 8 are provided on the flipping platform 4. A flipping locking mechanism 7 is provided between the frame 1 and the right-side rotating shaft 3. The positioning mechanism 1 includes two positioning frames 9 and an intermediate frame 5 fixedly connected to the top of the flipping platform 4, and a cylinder 10 fixedly connected to the rear of the flipping platform 4. A rotating block 11 is rotatably connected to the top of the intermediate frame 5. 1. Rotary connection to the output shaft of cylinder 10. A pressure plate 12 is fixedly connected to the top of rotating block 11. Intermediate frame 5 is located between two positioning frames 9. Intermediate frame 5 is fixedly set at the middle position of the top of the tilting table 4. Positioning mechanism 2 8 includes a mounting frame 82 fixedly connected to the top of the tilting table 4. Cylinder 2 83 is fixedly connected to the mounting frame 82. A connecting frame 84 is fixedly connected to the output shaft of cylinder 2 83. A connecting arm 85 is rotatably connected to the inner walls of the front and rear sides of the connecting frame 84. A lower pressure block 86 is fixedly connected to the connecting arm 85. The connecting arm 85 is rotatably connected to the inner walls of the front and rear sides of the mounting frame 82.

[0024] The above scheme is adopted as follows: Workpiece 1 is positioned within two positioning frames 9 and an intermediate frame 5, and the support seats 81 on the left and right sides can limit the front and rear movement of workpiece 1. Cylinder 10 is activated, causing its output shaft to extend. Cylinder 10 drives the rotating block 11 and the pressure plate 12 to deflect downwards, thereby locking workpiece 1. Two workpieces 2 are placed on the top sides of workpiece 1 and supported by the support seats 81. Then, cylinder 2 83 is activated, which drives the connecting frame 84 to move upwards. The connecting frame 84 drives the left end of the connecting arm 85 upwards and the right end of the connecting arm 85 downwards. The right end of the connecting arm 85 drives the lower pressure block 86 to move downwards, pressing down and fixing workpieces 2 and 1. This effectively positions and fixes workpieces 1 and 2, ensuring the quality of the riveting.

[0025] Furthermore, the positioning mechanism 28 also includes two support seats 81 for supporting the workpiece, and the mounting bracket 82 is located between the two support seats 81, which facilitates the support and guidance of the workpiece.

[0026] Furthermore, two bearing seats 2 are fixedly connected to the top of the frame 1. Bearings are fixedly sleeved inside the bearing seats 2, and two rotating shafts 3 are respectively fixedly sleeved in the inner ring of the corresponding bearings, so as to facilitate the support of the rotating shafts 3 and make their rotation more stable.

[0027] Furthermore, refer to Figures 1-3 The flipping locking mechanism 7 includes an external gear 701 fixedly sleeved on the outside of the rotating shaft 3 on the right side, a rotating rod 707 rotatably connected to one side of the frame 1, push-pull rods 708 rotatably connected to both sides of the rotating rod 707, a lifting rod 709 rotatably connected between the two push-pull rods 708, a limit plate 712 fixedly connected to the top of the lifting rod 709, a return spring 711 fixedly connected to the bottom of the limit plate 712, a sliding sleeve 710 fixedly connected to the lower end of the return spring 711, two sliding sleeves 710 fixedly connected to both sides of the frame 1 respectively, a locking rod 703 fixedly connected to the top of the limit plate 712 on the right side, the locking rod 703 movably engaged in the tooth gap of the external gear 701, a fixing plate 706 fixedly connected to the top of each of the two rotating rods 707 by bolts, two crossbars 705 fixedly connected to the two rotating rods 707 by the two fixing plates 706, and a foot pedal 704 fixedly connected to the top of the two crossbars 705.

[0028] Using the above scheme: When riveting one side is completed and another side needs to be riveted, the operator steps down on the foot pedal 704. The foot pedal 704 causes the two crossbars 705 and the fixing plate 706 to move downwards. The two fixing plates 706 cause the two rotating rods 707 to deflect downwards. The two rotating rods 707 cause the four push-pull rods 708 to move downwards. The four push-pull rods 708 cause the two lifting rods 709 and the limiting plate 712 to move downwards and compress the return spring 711. The right-side limiting plate 71... 2. The locking rod 703 moves downward without engaging the external gear 701. At this time, the handwheel 6 can be used to rotate the shaft 3 and the tilting table 4, causing workpiece 1 and workpiece 2 to rotate to another riveting surface. Then, the foot pedal 704 is released. Under the elastic force of the return spring 711, the locking rod 703 moves upward and engages in the tooth gap of the external gear 701, thereby locking the external gear 701, shaft 3 and tilting table 4. Then, the riveting position on the other side can be riveted.

[0029] Furthermore, an upper sliding sleeve 702 is fixedly connected to one side of the frame 1, a locking rod 703 is slidably sleeved in the upper sliding sleeve 702, two lifting rods 709 are respectively slidably sleeved in the corresponding lower sliding sleeves 710, and two return springs 711 are respectively sleeved on the outside of the corresponding lifting rods 709, so as to facilitate the guidance of the lifting rods 709 and the locking rods 703, making their movement more stable.

[0030] In this invention, during use, workpiece 1 is positioned within two positioning frames 9 and an intermediate frame 5. The support seats 81 on both sides limit the forward and backward movement of workpiece 1. Activating cylinder 10 extends its output shaft, causing the rotating block 11 and the pressure plate 12 to deflect downwards, thus locking workpiece 1. Two workpieces 2 are placed on either side of the top of workpiece 1 and supported by the support seats 81. Activating cylinder 2 83 moves the connecting frame 84 upwards, causing the left end of the connecting arm 85 to move upwards and the right end downwards. The right end of the connecting arm 85 moves the lower pressure block 86 downwards, pressing down and fixing workpieces 2 and 1. This effectively positions and fixes workpieces 1 and 2, ensuring the quality of the riveting. When one side is riveted and the other side needs to be riveted... When the operator steps down on the foot pedal 704, the foot pedal 704 causes the two crossbars 705 and the fixing plate 706 to move downwards. The two fixing plates 706 cause the two rotating rods 707 to deflect downwards. The two rotating rods 707 cause the four push-pull rods 708 to move downwards. The four push-pull rods 708 cause the two lifting rods 709 and the limiting plate 712 to move downwards and compress the return spring 711. The limiting plate 712 on the right side causes the locking rod 703 to move downwards without engaging the external gear 701. At this time, the handwheel 6 can be used to rotate the rotating shaft 3 and the flipping table 4, so that workpiece one and workpiece two can be rotated to another riveting surface. Then, the foot pedal 704 is released. At this time, under the elastic force of the return spring 711, the locking rod 703 moves upwards and engages in the tooth gap of the external gear 701, thereby locking the external gear 701, the rotating shaft 3 and the flipping table 4. Then, the riveting position on the other side can be riveted.

Claims

1. A multi-angle flip-up core-pulling riveting fixture, characterized in that, The frame includes a frame (1), the top of which is rotatably connected to two rotating shafts (3), and the same flipping platform (4) is fixedly connected between the two rotating shafts (3). A handwheel (6) is fixedly connected to one end of the rotating shaft (3) on the right side. A positioning mechanism one and two positioning mechanisms two (8) are provided on the flipping platform (4). A flipping locking mechanism (7) is provided between the frame (1) and the rotating shaft (3) on the right side. The positioning mechanism one includes two positioning frames (9) and an intermediate frame (5) fixedly connected to the top of the flipping platform (4), and a cylinder one (10) fixedly connected to the rear of the flipping platform (4). A rotating block (11) is rotatably connected to the top of the intermediate frame (5). The rotating block (11) is rotatably connected to the output shaft of the cylinder one (10). A pressure plate (12) is fixedly connected to the top of the rotating block (11).

2. The reversible multi-angle core-pulling riveting fixture according to claim 1, characterized in that, The intermediate frame (5) is located between the two positioning frames (9), and the intermediate frame (5) is fixedly set at the middle position on the top of the flipping table (4).

3. The reversible multi-angle core-pulling riveting fixture according to claim 1, characterized in that, The second positioning mechanism (8) includes a mounting bracket (82) fixedly connected to the top of the flipping platform (4). A second cylinder (83) is fixedly connected to the mounting bracket (82). A connecting bracket (84) is fixedly connected to the output shaft of the second cylinder (83). A connecting arm (85) is rotatably connected to the inner walls of the front and rear sides of the connecting bracket (84). A lower pressure block (86) is fixedly connected to the connecting arm (85). The connecting arm (85) is rotatably connected to the inner walls of the front and rear sides of the mounting bracket (82).

4. The reversible multi-angle core-pulling riveting fixture according to claim 3, characterized in that, The second positioning mechanism (8) further includes two support seats (81) for supporting the workpiece, and the mounting bracket (82) is located between the two support seats (81).

5. The reversible multi-angle core-pulling riveting fixture according to claim 1, characterized in that, The top of the frame (1) is fixedly connected to two bearing seats (2), and bearings are fixedly sleeved inside the bearing seats (2). Two rotating shafts (3) are respectively fixedly sleeved inside the inner ring of the corresponding bearings.

6. The reversible multi-angle core popping clamp of claim 1, wherein, The flipping locking mechanism (7) includes an external gear (701) fixedly sleeved on the outside of the rotating shaft (3) on the right side, a rotating rod (707) rotatably connected to one side of the frame (1), a push-pull rod (708) rotatably connected to both sides of the rotating rod (707), and a lifting rod (709) rotatably connected between the two push-pull rods (708). A limit plate (712) is fixedly connected to the top of the lifting rod (709), a return spring (711) is fixedly connected to the bottom of the limit plate (712), a sliding sleeve (710) is fixedly connected to the lower end of the return spring (711), and two sliding sleeves (710) are fixedly connected to both sides of the frame (1). A locking rod (703) is fixedly connected to the top of the limit plate (712) on the right side, and the locking rod (703) is movably engaged in the tooth gap of the external gear (701).

7. The reversible multi-angle core-pulling riveting fixture according to claim 6, characterized in that, The frame (1) is fixedly connected to an upper sliding sleeve (702) on one side. The locking rod (703) is slidably sleeved in the upper sliding sleeve (702). The two lifting rods (709) are slidably sleeved in the corresponding lower sliding sleeves (710). The two return springs (711) are respectively sleeved on the outside of the corresponding lifting rods (709).

8. The reversible multi-angle core popping clamp of claim 6, wherein, The top of each of the two rotating rods (707) is fixedly connected to a fixing plate (706) by bolts. The two rotating rods (707) are fixedly connected to two crossbars (705) by the two fixing plates (706). The top of the two crossbars (705) is fixedly connected to a foot pedal (704).

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