A device for drilling fixed holes of leaf springs for load-bearing and buffering underbody

Abstract

The present invention relates to the technical field of hole punching equipment, and in particular to a hole punching equipment for fixing holes of leaf springs for load-bearing and buffering underbody vehicles, comprising a conveyor belt for conveying leaf springs and a right-angle clamp and an extrusion plate for clamping the leaf springs, wherein the right-angle clamp and the extrusion plate are located on the outer side of the conveyor belt, and the extrusion plate is slidably mounted on the inner wall of the right-angle clamp, the right-angle clamp and the extrusion plate form a U-shaped structure, and the opening of the U-shaped structure faces the conveyor belt, and a plurality of process holes are opened on the right-angle clamp and the extrusion plate; the leaf spring is transversely conveyed by the conveyor belt, and two conveying rollers convey the leaf spring into the right-angle clamp and the extrusion plate, the right-angle clamp and the extrusion plate clamp and fix the leaf spring, and keep the opening position of the leaf spring in a planar state, and then the leaf spring is subjected to hole punching processing by a hole punching drill, thereby realizing continuous and automated hole punching processing of the leaf spring, effectively simplifying the hole punching method, improving the automation degree of leaf spring processing, saving manpower and time, and improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hole punching equipment, and in particular to a hole punching equipment for a leaf spring fixing hole used for load bearing and buffering of a vehicle bottom. Background Art

[0002] As we all know, leaf spring is a kind of elastic plate structure, which is generally used in the automotive field. Automobile leaf spring is an important elastic element in the automobile suspension system. It is widely used due to its good reliability, simple structure, short manufacturing process, low cost and greatly simplified structure. The weight of automobile leaf spring generally accounts for 8~9% of the weight of the car.

[0003] During the processing of leaf springs, it is generally necessary to open holes on them for fixed connections to facilitate the insertion of bolts or connecting rods. The traditional way of opening holes in leaf springs is for workers to place the leaf springs on a drilling platform for direct drilling. This opening method requires human-machine cooperation. The main tasks that workers need to cooperate in include loading and unloading, leaf spring positioning and fixing, and drilling platform control. The operation method is relatively cumbersome, the work efficiency is low, it is impossible to achieve automated production and processing methods, and it consumes a lot of manpower. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a device for drilling fixing holes of leaf springs for load-bearing and buffering purposes under the vehicle.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] The device for drilling holes for leaf spring fixing holes for vehicle bottom load buffering comprises a conveyor belt for conveying leaf springs and a right-angle clamping plate and an extrusion plate for clamping leaf springs, wherein the right-angle clamping plate and the extrusion plate are located on the outside of the conveyor belt, and the extrusion plate is slidably mounted on the inner wall of the right-angle clamping plate, and the right-angle clamping plate and the extrusion plate form a U-shaped structure, and the opening of the U-shaped structure faces the conveyor belt, and a plurality of process holes are opened on the right-angle clamping plate and the extrusion plate;

[0007] Two conveyor rollers are arranged between the conveyor belt and the U-shaped structure, and the conveyor rollers are located above the conveyor belt in the vertical direction, and the leaf springs on the conveyor belt are transmitted to the U-shaped structure through the two conveyor rollers;

[0008] It also includes multiple transmission shafts, the number of which is consistent with the number of process holes on the extrusion plate, the axis of the transmission shaft coincides with the axis of the process hole, the transmission shaft is located on the outside of the extrusion plate, and a hole-opening drill bit is provided at the end of the transmission shaft facing the extrusion plate.

[0009] Furthermore, it also includes a flat plate, on which a first oil cylinder is arranged, and two oblique arms are obliquely and rotatably mounted on the side wall of the movable rod of the first oil cylinder, and the two oblique arms have opposite inclination directions;

[0010] Two right-angle slides are provided on the flat plate, and the directions of the two right-angle slides are opposite. A slide plate is slidably arranged in the right-angle slides. Two right-angle guide plates are installed on the outer wall of the extrusion plate. The outer right-angle edges of the right-angle guide plates pass through the slide plate and slide relatively. A vertical plate is installed at the end of the movable rod on the first oil cylinder, and the outer end of the transmission shaft is rotatably installed on the vertical plate.

[0011] Furthermore, a first motor is installed on the vertical plate, a first gear is installed on the output end of the first motor, a second gear is installed on the outer wall of each transmission shaft, and the first gear is transmission-connected with a plurality of second gears.

[0012] Furthermore, a first guide cylinder is fixedly mounted on the outer wall of the transmission shaft, a second guide cylinder is slidably mounted on the outer wall of the first guide cylinder, the drilling bit is slidably located in the second guide cylinder, and the end of the second guide cylinder is fixed on the side wall of the extrusion plate.

[0013] Furthermore, it also includes an outer plate, the bottom of the outer plate is fixed on the flat plate, two conveying rollers are located on the inner side of the outer plate, a movable plate is arranged inside the outer plate, through grooves are opened on both sides of the movable plate, a slider is slidably arranged in the through groove, a connecting shaft is rotatably arranged at the bottom of the slider, the bottom of the connecting shaft is connected to the top of the conveying roller, a first push-pull plate is rotatably installed on the top of the slider, the first push-pull plate is inclined and the two first push-pull plates are inclined in opposite directions, the top of the first push-pull plate is rotatably installed on the outer plate, and a second push-pull plate is rotatably installed on the middle part of the first push-pull plate;

[0014] The outer plate is provided with a second oil cylinder, the bottom of the movable rod on the second oil cylinder is fixed on the moving plate, and the outer end of the second push-pull plate is rotatably mounted on the outer wall of the movable rod on the second oil cylinder.

[0015] Furthermore, it also includes a worm, both ends of the worm are provided with mounting plates, the mounting plates are fixed on the movable plate, two worm wheels are meshed on the worm, the worm wheels are installed on the connecting shaft, a second motor is installed at the bottom of the movable plate, and the output end of the second motor is transmission-connected to the worm.

[0016] Furthermore, it also includes an arched base plate, which is located on the outside of the conveyor belt, the arched base plate is connected to the flat plate, two conveying rollers are rotatably installed in the arched base plate, the conveyor belt transmission sleeve is arranged on the two conveying rollers, a third motor is installed on the outer wall of the arched base plate, the output end of the third motor is transmission-connected to a conveying roller, and a plurality of push plate groups are installed on the outer wall of the conveyor belt, and the push plate groups are composed of two arc-shaped plates.

[0017] Furthermore, a limit plate is installed on the second push-pull plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the leaf spring is transported laterally by a conveyor belt, and two conveyor rollers transfer the leaf spring to the right-angle clamp and the extrusion plate, the right-angle clamp and the extrusion plate clamp and fix the leaf spring, and keep the hole position of the leaf spring in a planar state, and then the leaf spring is drilled by a hole drill, thereby realizing continuous automated hole drilling processing of the leaf spring, effectively simplifying the hole drilling method, improving the degree of automation of leaf spring processing, saving manpower and time, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a front structural schematic diagram of the present invention;

[0021] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of the middle plate;

[0022] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the middle right-angle clamp and the extruded plate;

[0023] Figure 4 yes Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 5 yes Figure 1 Schematic diagram of the enlarged structure of the moving plate;

[0025] Markings in the attached drawings: 1. conveyor belt; 2. right-angle clamp; 3. process hole; 4. extrusion plate; 5. conveyor roller; 6. transmission shaft; 7. hole-opening drill; 8. flat plate; 9. first oil cylinder; 10. inclined arm; 11. right-angle slide; 12. slide plate; 13. right-angle guide plate; 14. vertical plate; 15. first motor; 16. first gear; 17. second gear; 18. first guide cylinder; 19. second guide cylinder; 20. outer plate; 21. moving plate; 22. slider; 23. connecting shaft; 24. first push-pull plate; 25. second push-pull plate; 26. second oil cylinder; 27. worm; 28. mounting plate; 29. ​​worm gear; 30. second motor; 31. arched base plate; 32. conveyor roller; 33. third motor; 34. arc plate; 35. limit plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0029] like Figure 1 and Figure 2 As shown, a device for drilling a fixed hole of a leaf spring for load-bearing and buffering underbody of the present invention comprises a conveyor belt 1 for conveying leaf springs and a right-angle clamping plate 2 and an extrusion plate 4 for clamping leaf springs, and the right-angle clamping plate 2 and the extrusion plate 4 are located on the outside of the conveyor belt 1, and the extrusion plate 4 is slidably mounted on the inner wall of the right-angle clamping plate 2, and the right-angle clamping plate 2 and the extrusion plate 4 form a U-shaped structure, and the opening of the U-shaped structure faces the conveyor belt 1, and a plurality of process holes 3 are opened on the right-angle clamping plate 2 and the extrusion plate 4;

[0030] Two conveying rollers 5 are arranged between the conveyor belt 1 and the U-shaped structure, and the conveying rollers 5 are located above the conveyor belt 1 in the vertical direction, and the leaf springs on the conveyor belt 1 are transmitted to the U-shaped structure through the two conveying rollers 5;

[0031] It also includes multiple transmission shafts 6, the number of the multiple transmission shafts 6 is consistent with the number of the multiple process holes 3 on the extrusion plate 4, the axis of the transmission shaft 6 coincides with the axis of the process hole 3, the transmission shaft 6 is located on the outside of the extrusion plate 4, and a hole-opening drill bit 7 is provided at the end of the transmission shaft 6 facing the extrusion plate 4.

[0032] In this embodiment, when the leaf spring is being punched, the leaf spring can be continuously conveyed by the conveyor belt 1. When the leaf spring is conveyed to the U-shaped structure formed by the right-angle clamp 2 and the extrusion plate 4, the conveyor belt 1 stops conveying, and the two conveyor rollers 5 move downward at an angle, and the two conveyor rollers 5 gradually approach each other. The two conveyor rollers 5 squeeze and clamp the left and right outer walls of the leaf spring, and the conveyor rollers 5 are rotated. The conveyor rollers 5 can convey the end of the leaf spring on the conveyor belt 1 to the U-shaped structure, and the inner wall of the right-angle clamp 2 limits and positions the end of the leaf spring toward the side wall of the leaf spring, and pushes the extrusion plate 4 to move. The extrusion plate 4 can squeeze the leaf spring on the inner wall of the right-angle clamp 2, and the extrusion plate 4 can squeeze the leaf spring in an arc state. After extrusion deformation to a planar state, the transmission shaft 6 and the hole-making drill bit 7 are rotated, and the transmission shaft 6 and the hole-making drill bit 7 are pushed through the process holes 3 on the right-angle clamp plate 2 and the extrusion plate 4. The hole-making drill bit 7 rotates the leaf spring between the right-angle clamp plate 2 and the extrusion plate 4 while moving. When the leaf spring is drilled, the extrusion plate 4 is pushed away from the leaf spring, and the leaf spring is pushed back to the conveyor belt 1 through the conveyor roller 5. The conveyor roller 5 returns to its initial position upward, and the next leaf spring continues to be transferred through the conveyor belt 1 and repeats the drilling work, thereby realizing continuous automated hole-making processing of the leaf spring, effectively simplifying the hole-making method, improving the degree of automation of leaf spring processing, saving manpower and time, and improving work efficiency.

[0033] In this embodiment, compared with the traditional hole-opening method, the present invention can realize an automated processing method that relies solely on machinery, save manpower consumption during human-machine cooperation, and avoid safety hazards during human-machine cooperation.

[0034] like Figures 2 to 4 As shown, as a preferred embodiment of the above embodiment, it also includes a flat plate 8, on which a first oil cylinder 9 is arranged, and two inclined arms 10 are installed on the side wall of the movable rod on the first oil cylinder 9 for tilting and rotating, and the tilting directions of the two inclined arms 10 are opposite;

[0035] Two right-angled grooves 11 are provided on the flat plate 8, and the directions of the two right-angled grooves 11 are opposite. A slide plate 12 is slidably arranged in the right-angled groove 11. Two right-angled guide plates 13 are installed on the outer wall of the extrusion plate 4. The outer right-angled edges of the right-angled guide plates 13 pass through the slide plate 12 and slide relatively. A vertical plate 14 is installed at the end of the movable rod on the first oil cylinder 9, and the outer end of the transmission shaft 6 is rotatably installed on the vertical plate 14.

[0036] In this embodiment, when the leaf spring moves between the right-angle clamping plate 2 and the extrusion plate 4, the first oil cylinder 9 extends, and the movable rod on the first oil cylinder 9 slides outward. The first oil cylinder 9 pushes the two slide plates 12 to slide in the two right-angled slide grooves 11 respectively through the two inclined arms 10. The slide plate 12 moves linearly in one right-angle side of the right-angled slide groove 11 and moves toward the right-angle clamping plate 2. At this time, the slide plate 12 pushes the extrusion plate 4 to move through the right-angle guide plate 13, and the extrusion plate 4 squeezes and fixes the leaf spring on the right-angle clamping plate 2. , and the first oil cylinder 9 pushes the transmission shaft 6 and the hole-opening drill bit 7 to move synchronously through the vertical plate 14. When the slide plate 12 slides to the other right-angle side of the right-angle slide groove 11, the moving direction of the slide plate 12 is parallel to the side wall of the extrusion plate 4. At this time, the extrusion plate 4 completes the extrusion work and the position of the extrusion plate 4 remains fixed. The vertical plate 14 continues to move, and the rotating hole-opening drill bit 7 passes through the process hole 3 on the extrusion plate 4 and the process hole 3 on the right-angle clamping plate 2 and drills the leaf spring, thereby completing the automatic drilling work of the leaf spring.

[0037] In this embodiment, by providing the inclined arm 10, the right-angle slide groove 11, the slide plate 12 and the right-angle guide plate 13, the step-by-step movement state of the extrusion plate 4 and the hole-opening drill bit 7 can be easily realized, thereby improving the accuracy of the movement synchronization and timing control of the extrusion plate 4 and the hole-opening drill bit 7. When the slide plate 12 slides in the other right-angle side of the right-angle slide groove 11, the slide plate 12 and the right-angle guide plate 13 produce relative sliding.

[0038] like Figure 4 As shown, as a preferred embodiment of the above embodiment, a first motor 15 is installed on the vertical plate 14, a first gear 16 is installed on the output end of the first motor 15, a second gear 17 is installed on the outer wall of each transmission shaft 6, and the first gear 16 is transmission-connected with multiple second gears 17.

[0039] In this embodiment, the first motor 15 drives the second gear 17 to rotate via the first gear 16 , thereby driving each transmission shaft 6 to rotate synchronously, thereby improving the synchronization of the operation of the multiple drilling bits 7 .

[0040] like Figure 2 As shown, as a preferred embodiment of the above embodiment, a first guide cylinder 18 is fixedly mounted on the outer wall of the transmission shaft 6, a second guide cylinder 19 is slidably mounted on the outer wall of the first guide cylinder 18, the hole-opening drill bit 7 is slidably located in the second guide cylinder 19, and the end of the second guide cylinder 19 is fixed on the side wall of the extrusion plate 4.

[0041] In this embodiment, when the transmission shaft 6 rotates, the transmission shaft 6 drives the first guide cylinder 18 to rotate in the second guide cylinder 19. By setting the first guide cylinder 18 and the second guide cylinder 19, the transmission shaft 6 and the hole-opening drill bit 7 can be conveniently guided and supported respectively, thereby improving their stability and firmness during movement and rotation.

[0042] like Figure 5 As shown, as a preferred embodiment of the above embodiment, it also includes an outer plate 20, the bottom of the outer plate 20 is fixed on the flat plate 8, the two conveying rollers 5 are located on the inner side of the outer plate 20, a movable plate 21 is arranged inside the outer plate 20, through grooves are opened on the left and right sides of the movable plate 21, a slider 22 is slidably arranged in the through groove, a connecting shaft 23 is rotatably arranged at the bottom of the slider 22, the bottom of the connecting shaft 23 is connected to the top of the conveying roller 5, a first push-pull plate 24 is rotatably installed on the top of the slider 22, the first push-pull plate 24 is inclined and the two first push-pull plates 24 are inclined in opposite directions, the top of the first push-pull plate 24 is rotatably installed on the outer plate 20, and a second push-pull plate 25 is rotatably installed in the middle of the first push-pull plate 24;

[0043] A second oil cylinder 26 is provided on the outer plate 20 . The bottom of the movable rod on the second oil cylinder 26 is fixed on the moving plate 21 . The outer end of the second push-pull plate 25 is rotatably mounted on the outer wall of the movable rod on the second oil cylinder 26 .

[0044] In this embodiment, the second oil cylinder 26 performs telescopic movement, and the second oil cylinder 26 pushes the movable rod on it to move, thereby driving the movable plate 21 to move up and down, and the movable plate 21 drives the connecting shaft 23 and the conveying roller 5 to move up and down through the slider 22. At the same time, when the movable plate 21 moves, the second push-pull plate 25 pulls the first push-pull plate 24 to tilt and rotate, and the movable plate 21 synchronously pulls the first push-pull plate 24 to tilt and rotate through the slider 22, so that the first push-pull plate 24 gradually rotates from the inclined state to the vertical direction, and the first push-pull plate 24 pushes the slider 22 to slide in the through groove, and the two sliders 22 synchronously approach each other, so that the two conveying rollers 5 approach each other. At this time, the two conveying rollers 5 move downward synchronously and approach each other synchronously, so that the conveying rollers 5 tilt and move, and the two conveying rollers 5 move downward to the left and right outer walls of the leaf spring and squeeze and fix the leaf spring, and rotate the connecting shaft 23. The connecting shaft 23 drives the conveying roller 5 to rotate and realizes the transmission of the leaf spring.

[0045] like Figure 5 As shown, as a preferred embodiment of the above embodiment, it also includes a worm 27, both ends of the worm 27 are provided with mounting plates 28, the mounting plates 28 are fixed on the movable plate 21, two worm wheels 29 are meshingly provided on the worm 27, the worm wheel 29 is installed on the connecting shaft 23, and a second motor 30 is installed at the bottom of the movable plate 21, and the output end of the second motor 30 is transmission-connected to the worm 27.

[0046] In this embodiment, the second motor 30 drives the two worm wheels 29 to rotate through the worm 27, thereby driving the two connecting shafts 23 and the two conveying rollers 5 to rotate synchronously. When the position of the conveying roller 5 moves, the worm 27 and the worm wheel 29 always maintain a meshing state, thereby realizing the transmission work of the second motor 30 on the conveying roller 5 at any position.

[0047] like Figure 1 As shown, as a preferred embodiment of the above embodiment, it also includes an arched base plate 31, which is located on the outside of the conveyor belt 1, and the arched base plate 31 is connected to the flat plate 8. Two conveying rollers 32 are rotatably installed in the arched base plate 31, and the conveyor belt 1 is driven by the two conveying rollers 32. A third motor 33 is installed on the outer wall of the arched base plate 31, and the output end of the third motor 33 is transmission-connected to a conveying roller 32. A plurality of push plate groups are installed on the outer wall of the conveyor belt 1, and the push plate group consists of two arc plates 34.

[0048] In this embodiment, the leaf spring is placed between the two arc plates 34 in the pushing plate group. The third motor 33 drives the conveyor belt 1 to rotate through the two conveying rollers 32, thereby realizing the conveying of the leaf spring. The arc plate 34 can facilitate the positioning and pushing of the leaf spring, and facilitate the limitation of the placement orientation of the leaf spring, thereby facilitating the two conveying rollers 5 to smoothly convey the leaf spring.

[0049] like Figure 5 As shown, as a preferred embodiment of the above embodiment, a limiting plate 35 is installed on the second push-pull plate 25.

[0050] In this embodiment, when the movable plate 21 moves upward to the initial position, the top of the limiting plate 35 contacts the outer wall of the first push-pull plate 24, and the limiting plate 35 can limit the angle between the second push-pull plate 25 and the first push-pull plate 24, thereby limiting the moving position of the movable plate 21.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for drilling fixed holes of leaf springs for load-bearing and buffering underbody, characterized in that: It comprises a conveyor belt (1) for conveying leaf springs and a right-angle clamp (2) and an extrusion plate (4) for clamping the leaf springs, wherein the right-angle clamp (2) and the extrusion plate (4) are located on the outside of the conveyor belt (1), and the extrusion plate (4) is slidably mounted on the inner wall of the right-angle clamp (2), the right-angle clamp (2) and the extrusion plate (4) form a U-shaped structure, and the opening of the U-shaped structure faces the conveyor belt (1), and a plurality of process holes (3) are opened on the right-angle clamp (2) and the extrusion plate (4); Two conveying rollers (5) are arranged between the conveyor belt (1) and the U-shaped structure, and the conveying rollers (5) are located above the conveyor belt (1) in the vertical direction, and the leaf springs on the conveyor belt (1) are transmitted to the U-shaped structure via the two conveying rollers (5); It also includes a plurality of transmission shafts (6), the number of the plurality of transmission shafts (6) being consistent with the number of the plurality of process holes (3) on the extrusion plate (4), the axis of the transmission shaft (6) being coincident with the axis of the process hole (3), the transmission shaft (6) being located outside the extrusion plate (4), and a hole-opening drill bit (7) being provided at the end of the transmission shaft (6) facing the extrusion plate (4); It also includes a flat plate (8), on which a first oil cylinder (9) is arranged, and on the side wall of the movable rod of the first oil cylinder (9), two inclined arms (10) are installed in an inclined and rotatable manner, and the inclination directions of the two inclined arms (10) are opposite; Two right-angled slide grooves (11) are provided on the flat plate (8), the two right-angled slide grooves (11) are in opposite directions, a slide plate (12) is slidably arranged in the right-angled slide groove (11), two right-angled guide plates (13) are installed on the outer side wall of the extrusion plate (4), the outer right-angled edges of the right-angled guide plates (13) pass through the slide plate (12) and slide relatively, a vertical plate (14) is installed at the end of the movable rod on the first oil cylinder (9), and the outer end of the transmission shaft (6) is rotatably installed on the vertical plate (14); A first motor (15) is mounted on the vertical plate (14); a first gear (16) is mounted on the output end of the first motor (15); a second gear (17) is mounted on the outer wall of each transmission shaft (6); and the first gear (16) is transmission-connected to the plurality of second gears (17); A first guide cylinder (18) is sleeved and fixed on the outer wall of the transmission shaft (6), a second guide cylinder (19) is slidably sleeved on the outer wall of the first guide cylinder (18), the hole drill bit (7) is slidably located in the second guide cylinder (19), and the end of the second guide cylinder (19) is fixed on the side wall of the extrusion plate (4); It also includes an outer plate (20), the bottom of the outer plate (20) is fixed on the flat plate (8), two conveying rollers (5) are located on the inner side of the outer plate (20), a movable plate (21) is arranged inside the outer plate (20), through grooves are opened on both sides of the movable plate (21), a slider (22) is slidably arranged in the through groove, a connecting shaft (23) is rotatably arranged at the bottom of the slider (22), the bottom of the connecting shaft (23) is connected to the top of the conveying roller (5), a first push-pull plate (24) is rotatably installed on the top of the slider (22), the first push-pull plate (24) is inclined and the two first push-pull plates (24) are inclined in opposite directions, the top of the first push-pull plate (24) is rotatably installed on the outer plate (20), and a second push-pull plate (25) is rotatably installed in the middle of the first push-pull plate (24); A second oil cylinder (26) is provided on the outer plate (20), the bottom of the movable rod on the second oil cylinder (26) is fixed on the movable plate (21), and the outer end of the second push-pull plate (25) is rotatably mounted on the outer wall of the movable rod on the second oil cylinder (26); The invention also comprises a worm (27), both ends of the worm (27) are provided with mounting plates (28), the mounting plates (28) are fixed on the moving plate (21), two worm wheels (29) are meshingly provided on the worm (27), the worm wheels (29) are mounted on the connecting shaft (23), a second motor (30) is mounted on the bottom of the moving plate (21), and the output end of the second motor (30) is drivingly connected to the worm (27).

2. The device for drilling fixing holes of leaf springs for underbody load-bearing and buffering according to claim 1, characterized in that: The invention also comprises an arched base plate (31), the arched base plate (31) being located outside the conveyor belt (1), the arched base plate (31) being connected to the flat plate (8), two conveyor rollers (32) being rotatably mounted inside the arched base plate (31), the conveyor belt (1) being transmission sleeved on the two conveyor rollers (32), a third motor (33) being mounted on the outer wall of the arched base plate (31), the output end of the third motor (33) being transmission-connected to a conveyor roller (32), and a plurality of push plate groups being mounted on the outer wall of the conveyor belt (1), the push plate groups being composed of two arc-shaped plates (34).

3. The device for drilling fixing holes of leaf springs for underbody load-bearing and buffering according to claim 2, characterized in that: A limit plate (35) is mounted on the second push-pull plate (25).

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