Riveting limiting tool for automobile rivet nut

Abstract

The invention discloses a riveting limiting tool for an automobile rivet nut, and belongs to the field of automobile manufacturing. Comprising an L-shaped workbench, the rear surface of the inner side of the L-shaped workbench is fixedly connected with a top plate, the upper surface of the top plate is fixedly connected with two hydraulic telescopic rods, the bottom ends of the output ends of the two hydraulic telescopic rods are located below the top plate and are jointly and fixedly connected with a support, and the lower surface of the support is fixedly connected with an adjusting box; a placing plate is arranged at the position, located below the adjusting box, of the inner side of the L-shaped workbench, a plurality of penetrating type transverse grooves are formed in the front surface of the adjusting box, and limiting grooves are formed in the positions, located above the transverse grooves, of the front surface of the adjusting box; a knob is held by hand to drive a screw rod to rotate, a clamping plate is controlled to descend and clamp a frame, the frame is ensured to be stably placed, a hydraulic telescopic rod is started, an adjusting box is controlled to descend, and multi-hole-site pressing riveting work is completed through a plurality of punches on the adjusting box.

Description

Technical Field

[0001] The invention relates to the field of automobile manufacturing, and in particular to a riveting limiting tool for automobile rivet nuts. Background Art

[0002] The self-clinching nut is a fastener used in sheet metal, thin plates, chassis, cabinets, high-quality magnesium materials, high-quality titanium forgings, and magnesium alloy forgings. The self-clinching nut is pressed into the preset hole of the thin plate and other workpieces by a press, and the periphery of the hole is plastically deformed, so that the self-clinching nut is tightly fixed on the thin plate, thereby forming an internal thread knot on the thin plate that can effectively fix the screw. Self-clinching nuts are required in the process of automobile frame processing, and a self-clinching machine is required at this time;

[0003] Patent Publication No. (CN219053520U) discloses a high-precision aluminum anti-deformation riveting device, including a base, a fixed plate fixedly installed on the top of the base, a connecting plate fixedly installed on the front side of the fixed plate, an electric push rod fixedly installed on the bottom of the connecting plate, a first motor fixedly installed on the bottom of the electric push rod, a pressure block fixedly connected to the output end of the first motor, a second motor fixedly installed on the top of the fixed plate, a threaded rod with one end extending into the interior of the fixed plate fixedly connected to the output end of the second motor. This high-precision aluminum anti-deformation riveting device has the advantages of good fixing effect, etc., and solves the problem that the existing riveting device cannot have a good clamping effect on automotive parts and cannot adapt to automotive parts of different sizes, resulting in the phenomenon that the aluminum material of the pressed automotive parts is easily deformed during processing, thereby reducing the processing efficiency and also reducing the practicality of the riveting device.

[0004] The above technology cannot perform pressure riveting on multiple preset hole positions at the same time, and it is not convenient to adjust according to the different preset hole positions, so it needs to be improved. For this reason, we propose a riveting limit tooling for automotive rivet nuts. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a device that can perform riveting on multiple preset hole positions at the same time; another purpose of the present invention is to provide a device that can adjust the riveting position according to different preset hole positions.

[0006] Technical solution: A riveting limit tool for automobile rivet nuts, comprising an L-shaped workbench, the inner rear surface of the L-shaped workbench is fixedly connected to a top plate, the upper surface of the top plate is fixedly connected to two hydraulic telescopic rods, the bottom ends of the output ends of the two hydraulic telescopic rods are located below the top plate and are fixedly connected to a bracket, the lower surface of the bracket is fixedly connected to an adjustment box, and a placement plate is provided on the inner side of the L-shaped workbench below the adjustment box;

[0007] The front surface of the adjusting box is provided with a plurality of through-type transverse grooves, and the front surface of the adjusting box and the upper parts of the plurality of transverse grooves are provided with limit grooves, and the lower surface of the adjusting box is provided with a through-type movable groove, and the interior of the adjusting box is slidably connected with a plurality of sliding blocks, the bottom of the sliding block is located at the inner side of the movable groove and is fixedly connected with a punch, the center of the upper surface of the punch is located above the sliding block and is rotatably connected with a bevel gear 1 via a rotating shaft, the front surface of the sliding block is located at the inner side of the transverse groove and is rotatably connected with a fastening bolt via a rotating shaft, the outer wall of the fastening bolt is located at the front of the adjusting box and is threadedly connected with a fastening sheet, the interior of the limit groove is slidably connected with a limit block, and the front end of the limit block penetrates to the front of the fastening sheet and is slidably connected with the fastening sheet;

[0008] A motor is fixedly connected to the left side of the regulating box, and the right end of the output shaft of the motor is located inside the regulating box and is fixedly connected to a cross bar, and the outer wall of the cross bar is fixedly connected to a plurality of blocks, and the outer wall of the cross bar is located on the right side of the plurality of blocks and is slidably connected to bevel gear 2, and two springs 1 are fixedly connected between adjacent bevel gear 2 and the block, and bevel gear 2 is meshingly connected to bevel gear 1.

[0009] Furthermore, a through vertical groove is provided on the rear surface of the L-shaped workbench, a vertical rod is fixedly connected to the interior of the vertical groove, a lifting block is slidably connected to the outer wall of the vertical rod, and a front surface of the lifting block is fixedly connected to the rear surface of the placement plate.

[0010] Furthermore, a plurality of springs are fixedly connected between the placement plate and the L-shaped workbench.

[0011] Furthermore, an L-shaped plate is integrally formed on the front surface of the placement plate, a screw is threadedly connected to the upper surface of the L-shaped plate, the bottom end of the screw extends to the inner side of the L-shaped plate and is rotatably connected to a clamping plate via a rotating shaft.

[0012] Furthermore, the upper surface of the clamping plate is symmetrically fixedly connected with a guide rod, and the top end of the guide rod passes through the top of the L-shaped plate and is slidably connected to the L-shaped plate.

[0013] Furthermore, an inflation box 1 is fixedly connected to the rear surface of the L-shaped workbench, a piston plate 1 is slidably connected to the interior of the inflation box 1, a plurality of push rods are fixedly connected to the front surface of the piston plate 1, a plurality of shaft columns are rotatably connected to the inner front surface of the inflation box 1 via a rotating shaft, the front end of the shaft column is located on the inner side of the L-shaped workbench and is fixedly connected to a shaft rod, a cam is fixedly connected to the outer side wall of the shaft rod, and the outer side wall of the cam is in contact with the lower surface of the placement plate.

[0014] Furthermore, an outer side wall of the shaft column is provided with an inclined shifting groove, and the lower surface of the push rod is located inside the inclined shifting groove and is fixedly connected with a shifting column.

[0015] Furthermore, the inner rear surface of the L-shaped workbench is located below the top plate and is fixedly connected to an inflation box 2, the interior of the inflation box 2 is slidably connected to a piston plate 2, the upper surface of the piston plate 2 is fixedly connected to a contraction box, the interior of the contraction box is slidably connected to a telescopic plate, a connecting plate is fixedly connected to the top of the telescopic plate and the outer side walls of the output ends of the two hydraulic telescopic rods, a plurality of ventilation pipes are fixedly connected between the inflation box 2 and the inflation box 1, and a plurality of springs 3 are fixedly connected between the inflation box 2 and the piston plate 2.

[0016] Furthermore, a knob is fixedly connected to the top end of the screw rod.

[0017] Beneficial effects:

[0018] By turning the knob, the screw is driven to rotate, the clamping plate is controlled to descend and clamp the frame to ensure the frame is stably placed, the hydraulic telescopic rod is started, the adjustment box is controlled to descend, and the multiple punches on the adjustment box are used to complete the multi-hole riveting work;

[0019] When the fastening piece is close to the adjustment box, the sliding block can be restricted from sliding, so that the punch can stay stably at the current position for riveting. When the fastening piece is away from the adjustment box, the sliding block can drive the punch to slide along the inner side of the movable groove, thereby achieving the effect of adjusting the riveting position. There are multiple punches, and multiple preset holes on the frame can be riveted at the same time, which is more efficient.

[0020] Start the motor to drive the crossbar to rotate. Through the meshing of bevel gear 2 and bevel gear 1, multiple punches can be driven to rotate, so that when the punch descends to punch and rivet the nut, it rotates and squeezes at the same time, which can make the riveting work more convenient. Bevel gear 2 can move to the left with the sliding block and always fit closely with bevel gear 1, ensuring that the motor starts and can drive the punch to rotate;

[0021] As the punch descends, the telescopic plate will first shrink to the shrink box. At this time, make sure that the punch is close to the nut to be riveted to the frame. The punch continues to descend, and the shrink box will push the piston plate 2 to slide along the inside of the inflation box 2, filling the internal gas of the inflation box 2 into the inside of the inflation box 1, pushing the push rod on the piston plate 1 to move forward, and then cooperate with the toggle column and the toggle slot to drive the cam to move, so that the tip of the cam squeezes the placement plate to rise, so that the frame can be driven to rise, and cooperate with the punch to descend, to achieve the effect of double-sided extrusion of the frame and nut riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the regulating box of the present invention;

[0024] Figure 3 It is a side view structural schematic diagram of the placement seat of the present invention;

[0025] Figure 4 It is a schematic diagram of the L-shaped workbench structure of the present invention;

[0026] Figure 5 It is a side view structural schematic diagram of an L-shaped workbench of the present invention;

[0027] Figure 6 is a schematic structural side view of a cross section of the inflatable box of the present invention;

[0028] Figure 7 It is a schematic diagram of the cross-sectional connection structure of the inflation box 2 and the shrinkage box of the present invention.

[0029] In the figure: 1. L-shaped workbench; 2. top plate; 3. hydraulic telescopic rod; 4. bracket; 5. adjustment box; 6. horizontal groove; 7. limit groove; 8. movable groove; 9. sliding block; 10. punch; 11. bevel gear 1; 12. fastening bolt; 13. fastening plate; 14. limit block; 15. motor; 16. horizontal rod; 17. stopper; 18. bevel gear 2; 19. spring 1; 20. vertical groove; 21. vertical rod; 22. lifting block; 23. Placement plate; 24. Spring 2; 25. L-shaped plate; 26. Screw; 27. Clamping plate; 28. Guide rod; 29. ​​Inflatable box 1; 30. Piston plate 1; 31. Push rod; 32. Shaft column; 33. Shaft rod; 34. Cam; 35. Toggle slot; 36. Toggle column; 37. Inflatable box 2; 38. Piston plate 2; 39. Contraction box; 40. Telescopic plate; 41. Connecting plate; 42. Ventilation pipe; 43. Spring 3; 44. Knob. DETAILED DESCRIPTION

[0030] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a riveting limit tooling for automobile rivet nuts is provided, comprising an L-shaped workbench 1, a top plate 2 is fixedly connected to the inner rear surface of the L-shaped workbench 1, two hydraulic telescopic rods 3 are fixedly connected to the upper surface of the top plate 2, the output ends of the two hydraulic telescopic rods 3 are located below the top plate 2 and are fixedly connected to a bracket 4, an adjustment box 5 is fixedly connected to the lower surface of the bracket 4, a placing plate 23 is arranged below the adjustment box 5 on the inner side of the L-shaped workbench 1, a through vertical groove 20 is opened on the rear surface of the L-shaped workbench 1, a vertical rod 21 is fixedly connected to the inside of the vertical groove 20, and a lifting rod 21 is slidably connected to the outer wall of the vertical rod 21. The lowering block 22, the front surface of the lifting block 22 is fixedly connected to the rear surface of the placement plate 23, a plurality of springs 24 are fixedly connected between the placement plate 23 and the L-shaped workbench 1, the front surface of the placement plate 23 is integrally formed with an L-shaped plate 25, the upper surface of the L-shaped plate 25 is threadedly connected with a screw 26, the bottom end of the screw 26 extends to the inner side of the L-shaped plate 25, and is rotatably connected to a clamping plate 27 through a rotating shaft, the upper surface of the clamping plate 27 is symmetrically fixedly connected with a guide rod 28, the top end of the guide rod 28 penetrates to the top of the L-shaped plate 25, and is slidably connected to the L-shaped plate 25, and the top end of the screw 26 is fixedly connected with a knob 44;

[0033] During operation, the processed automobile frame is placed on the upper surface of the placement plate 23, and the screw rod 26 is driven to rotate by holding the knob 44 to control the clamping plate 27 to descend and clamp the frame to ensure that the frame is stably placed. The hydraulic telescopic rod 3 is started to control the adjustment box 5 to descend, and the multi-hole riveting work is completed by the multiple punches 10 on the adjustment box 5.

[0034] like Figure 2 As shown, the front surface of the regulating box 5 is provided with a plurality of through-type transverse grooves 6, and the front surface of the regulating box 5 and above the plurality of transverse grooves 6 are provided with limit grooves 7, and the lower surface of the regulating box 5 is provided with a through-type movable groove 8, and the inside of the regulating box 5 is slidably connected with a plurality of sliding blocks 9, and the bottom of the sliding block 9 is located on the inner side of the movable groove 8 and is fixedly connected with a punch 10, and the center of the upper surface of the punch 10 is located above the sliding block 9 and is rotatably connected with a bevel gear 11 through a rotating shaft, and the front surface of the sliding block 9 is located on the inner side of the transverse groove 6 and is rotatably connected with a fastening bolt 12 through a rotating shaft, and the outer wall of the fastening bolt 12 is located in front of the regulating box 5 and is threadedly connected with a fastening sheet 13, and the internal sliding connection of the limit groove 7 is connected with a limit block 14, and the front end of the limit block 14 penetrates to the front of the fastening sheet 13 and is slidably connected with the fastening sheet 13;

[0035] The fastening bolt 12 is held and rotated. Under the limit of the limit block 14, the fastening sheet 13 can be controlled to slide along the fastening bolt 12. When the fastening sheet 13 is close to the adjustment box 5, the sliding block 9 can be restricted from sliding, so that the punch 10 stays stably at the current position for riveting. When the fastening sheet 13 is away from the adjustment box 5, the sliding block 9 can drive the punch 10 to slide along the inner side of the movable groove 8, thereby achieving the effect of adjusting the riveting position. There are multiple punches 10, and multiple preset holes on the frame can be riveted at the same time, which is more efficient.

[0036] The left side of the regulating box 5 is fixedly connected with a motor 15, the right end of the output shaft of the motor 15 is located inside the regulating box 5 and is fixedly connected with a cross bar 16, the outer wall of the cross bar 16 is fixedly connected with a plurality of blocks 17, the outer wall of the cross bar 16 is located on the right side of the plurality of blocks 17 and is slidably connected with a bevel gear 2 18, two springs 19 are fixedly connected between adjacent bevel gears 2 18 and blocks 17, and the bevel gear 2 18 is meshedly connected with the bevel gear 1 11;

[0037] When riveting, start the motor 15 to drive the cross bar 16 to rotate, and through the engagement of the bevel gear 2 18 with the bevel gear 1 11, multiple punches 10 can be driven to rotate, so that when the punch 10 descends to punch and rivet the nut, it rotates and squeezes at the same time, which can make the riveting work more convenient. In addition, the bevel gear 2 18 can move to the left with the sliding block 9 and always fit closely with the bevel gear 1 11, ensuring that the motor 15 is started and can drive the punch 10 to rotate.

[0038] like Figure 6 and Figure 7 As shown, the rear surface of the L-shaped workbench 1 is fixedly connected to an inflatable box 29, the interior of the inflatable box 29 is slidably connected to a piston plate 30, the front surface of the piston plate 30 is fixedly connected to a plurality of push rods 31, the inner front surface of the inflatable box 29 is rotatably connected to a plurality of shaft columns 32 through a rotating shaft, the front end of the shaft column 32 is located on the inner side of the L-shaped workbench 1 and is fixedly connected to a shaft rod 33, the outer side wall of the shaft rod 33 is fixedly connected to a cam 34, the outer side wall of the cam 34 is in contact with the lower surface of the placement plate 23, the outer side wall of the shaft column 32 is provided with a toggle groove 35, the lower surface of the push rod 31 is located inside the toggle groove 35 A toggle column 36 is fixedly connected to the side, an inflatable box 2 37 is fixedly connected to the inner rear surface of the L-shaped workbench 1 below the top plate 2, a piston plate 2 38 is slidably connected to the inside of the inflatable box 2 37, a contraction box 39 is fixedly connected to the upper surface of the piston plate 2 38, a telescopic plate 40 is slidably connected to the inside of the contraction box 39, a connecting plate 41 is fixedly connected between the top of the telescopic plate 40 and the outer side walls of the output ends of the two hydraulic telescopic rods 3, a plurality of ventilation pipes 42 are fixedly connected between the inflatable box 2 37 and the inflatable box 1 29, and a plurality of springs 3 43 are fixedly connected between the inflatable box 2 37 and the piston plate 2 38;

[0039] When the hydraulic telescopic rod 3 is extended, as the punch 10 descends, the telescopic plate 40 will first shrink to the shrinkage box 39 under the connection and drive of the connecting plate 41. At this time, it is ensured that the punch 10 is close to the nut to be riveted to the frame. As the punch 10 continues to descend, the shrinkage box 39 will push the piston plate 2 38 to slide along the inside of the inflation box 2 37. At this time, the internal gas of the inflation box 2 37 will be filled into the inside of the inflation box 1 29, pushing the push rod 31 on the piston plate 1 30 to move forward, and then through the coordination of the toggle column 36 and the toggle groove 35, the toggle shaft column 32 and the shaft rod 33 are rotated together, and then the cam 34 is driven to move, so that the tip of the cam 34 squeezes the placement plate 23 to rise, so that the frame can be driven to rise, and cooperate with the punch 10 to descend, so as to achieve the effect of double-sided extrusion of the frame and nut riveting.

[0040] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A riveting limiter for automobile rivet nuts, comprising an L-shaped workbench (1), characterized in that: The inner rear surface of the L-shaped workbench (1) is fixedly connected to a top plate (2), the upper surface of the top plate (2) is fixedly connected to two hydraulic telescopic rods (3), the bottom ends of the output ends of the two hydraulic telescopic rods (3) are located below the top plate (2) and are fixedly connected to a bracket (4), the lower surface of the bracket (4) is fixedly connected to an adjustment box (5), and a placement plate (23) is provided on the inner side of the L-shaped workbench (1) below the adjustment box (5); The front surface of the regulating box (5) is provided with a plurality of through-type transverse grooves (6); the front surface of the regulating box (5) and above the plurality of transverse grooves (6) are provided with limiting grooves (7); the lower surface of the regulating box (5) is provided with a through-type movable groove (8); the inside of the regulating box (5) is slidably connected with a plurality of sliding blocks (9); the bottom of the sliding block (9) is located inside the movable groove (8) and is fixedly connected with a punch (10); the center of the upper surface of the punch (10) is located on the sliding block The upper part of the sliding block (9) is rotatably connected to a bevel gear (11) via a rotating shaft; the front surface of the sliding block (9) is located on the inner side of the transverse groove (6) and is rotatably connected to a fastening bolt (12) via a rotating shaft; the outer side wall of the fastening bolt (12) is located in front of the regulating box (5) and is threadedly connected to a fastening plate (13); the inner part of the limiting groove (7) is slidably connected to a limiting block (14); the front end of the limiting block (14) passes through the front of the fastening plate (13) and is slidably connected to the fastening plate (13); The left side of the regulating box (5) is fixedly connected to a motor (15); the right end of the output shaft of the motor (15) is located inside the regulating box (5) and is fixedly connected to a cross bar (16); the outer wall of the cross bar (16) is fixedly connected to a plurality of blocks (17); the outer wall of the cross bar (16) is located to the right of the plurality of blocks (17) and is slidably connected to bevel gear 2 (18); two springs 1 (19) are fixedly connected between adjacent bevel gear 2 (18) and the block (17); and the bevel gear 2 (18) is meshingly connected to the bevel gear 1 (11).

2. The automobile rivet nut riveting limiting tool according to claim 1, characterized in that: The rear surface of the L-shaped workbench (1) is provided with a through-type vertical groove (20), the interior of the vertical groove (20) is fixedly connected with a vertical rod (21), the outer side wall of the vertical rod (21) is slidably connected with a lifting block (22), and the front surface of the lifting block (22) is fixedly connected to the rear surface of the placement plate (23).

3. The automobile rivet nut riveting limiting tool according to claim 1, characterized in that: A plurality of springs (24) are fixedly connected between the placement plate (23) and the L-shaped workbench (1).

4. The automobile rivet nut riveting limiting tool according to claim 1, characterized in that: An L-shaped plate (25) is integrally formed on the front surface of the placement plate (23), and a screw rod (26) is threadedly connected to the upper surface of the L-shaped plate (25). The bottom end of the screw rod (26) extends to the inner side of the L-shaped plate (25) and is rotatably connected to a clamping plate (27) via a rotating shaft.

5. The automobile rivet nut riveting limiting tool according to claim 4, characterized in that: A guide rod (28) is symmetrically fixedly connected to the upper surface of the clamping plate (27), and the top end of the guide rod (28) penetrates to the top of the L-shaped plate (25) and is slidably connected to the L-shaped plate (25).

6. The automobile rivet nut riveting limiting tool according to claim 1, characterized in that: The rear surface of the L-shaped workbench (1) is fixedly connected to an air charging box (29), the interior of the air charging box (29) is slidably connected to a piston plate (30), the front surface of the piston plate (30) is fixedly connected to a plurality of push rods (31), the internal front surface of the air charging box (29) is rotatably connected to a plurality of shaft columns (32) via a rotating shaft, the front end of the shaft column (32) is located on the inner side of the L-shaped workbench (1) and is fixedly connected to a shaft rod (33), the outer side wall of the shaft rod (33) is fixedly connected to a cam (34), and the outer side wall of the cam (34) is in contact with the lower surface of the placement plate (23).

7. The automobile rivet nut riveting limiting tool according to claim 6, characterized in that: The outer wall of the shaft column (32) is provided with a toggle groove (35), and the lower surface of the push rod (31) is located inside the toggle groove (35) and is fixedly connected to a toggle column (36).

8. The automobile rivet nut riveting limiting tool according to claim 6, characterized in that: The inner rear surface of the L-shaped workbench (1) is located below the top plate (2) and is fixedly connected to an air box 2 (37); the interior of the air box 2 (37) is slidably connected to a piston plate 2 (38); the upper surface of the piston plate 2 (38) is fixedly connected to a contraction box (39); the interior of the contraction box (39) is slidably connected to a telescopic plate (40); a connecting plate (41) is fixedly connected between the top of the telescopic plate (40) and the outer side walls of the output ends of the two hydraulic telescopic rods (3); a plurality of ventilation pipes (42) are fixedly connected between the air box 2 (37) and the air box 1 (29); and a plurality of springs 3 (43) are fixedly connected between the air box 2 (37) and the piston plate 2 (38).

9. The automobile rivet nut riveting limiting tool according to claim 4, characterized in that: The top end of the screw rod (26) is fixedly connected with a knob (44).

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