CN112935830A

CN112935830A - Steel sheet drilling grinding device for automobile machining

Info

Publication number: CN112935830A
Application number: CN202110139328.1A
Authority: CN
Inventors: 刘晓娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-06-11

Abstract

The invention discloses a steel plate drilling and polishing device for automobile machining, which comprises a support frame, wherein a first limiting plate is arranged on the inner side of the support frame, a conveying belt is arranged on the inner side of the first limiting plate, a support is fixed at one end of the support frame, a plurality of first transmission rods are mounted on the support, a first fluted disc is arranged at each of two ends of each of the plurality of first transmission rods, and a conveying belt is arranged on each of the first fluted discs. When the drilling machine drills, the reciprocating screw rod slowly rotates to drive the moving plate to continuously reciprocate, the drilling machine performs hole opening operation on the steel plate through the drill bit, the steel plate after hole opening is driven by the polishing disc which continuously advances to move forwards, polishing operation is performed on the steel plate after hole rotation through the polishing disc, when the moving plate is reset through the reciprocating screw rod, the spring III is separated from the pressing force to enable the spring II to rebound, the gear II is meshed with the gear I which slowly rotates to enable the gear III to rotate, the gear roller drives the gear plate I to rotate, and continuous work of the reciprocating screw rod keeps continuous drilling effect.

Description

Steel sheet drilling grinding device for automobile machining

Technical Field

The invention relates to the technical field of automobile machining, in particular to a steel plate drilling and polishing device for automobile machining.

Background

The automobile is a non-rail-bearing vehicle driven by power and provided with four or more wheels, and is mainly used for carrying people or goods and towing the people or goods. With the rapid development of traffic pipelines, automobiles become an important business in the daily travel process of people.

However, at present, after the drilling processing of the steel plate in the automobile production, burrs after the front and back surfaces of the steel plate are drilled are required to be integrally polished, and a flow is added to the processing process during the polishing processing of the steel plate after the drilling, so that the efficiency of the automobile steel plate in the drilling production is reduced, and time and labor are wasted. Therefore, the invention provides a steel plate drilling and grinding device for automobile processing, which aims to solve the problems in the background technology.

Disclosure of Invention

The invention aims to provide a steel plate drilling and polishing device for automobile machining, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a steel plate drilling and polishing device for automobile machining comprises a support frame, wherein a first limiting plate is arranged on the inner side of the support frame, a conveying belt is arranged on the inner side of the first limiting plate, a support is fixed at one end of the support frame, a plurality of first transmission rods are mounted on the support, a first fluted disc is arranged at each of two ends of each of the plurality of first transmission rods, and a conveying belt is arranged on the first fluted disc;

a second transmission rod and a sliding rod are mounted on the side wall of the support, a reciprocating screw rod is mounted at one end of the second transmission rod, a second belt wheel is mounted at one end of the reciprocating screw rod, a first belt is arranged on the second belt wheel, a first belt wheel is arranged at one end of the first belt, a motor is connected to one side of the first belt wheel, a support column is arranged below the motor, an installation shaft is sleeved on the outer side wall of the transmission rod, and the second transmission;

the reciprocating screw rod and the sliding rod are sleeved with a movable plate, a plurality of drilling machines are mounted on the movable plate, one end of each drilling machine is provided with a connector, the outer side wall of each connector is provided with a polishing disc, and one end of each connector is provided with a drill bit;

the supporting frame top installs a plurality of branches on the surface, the branch top is equipped with places the case, places the roof portion and has seted up the spout, is equipped with the slider in the spout, be equipped with spring four on the slider lateral wall, four one ends of spring are installed on the slider, and the four other ends of spring are installed on placing the case, the one end of placing the case has seted up the draw-in groove, and the both sides of draw-in groove all are equipped with limiting plate two, limiting plate two is installed on placing the case, and the one end bottom of placing the case installs the stripper plate.

As a further scheme of the invention, a limiting block is fixed between the reciprocating screw rod and the second transmission rod, the first transmission rod is provided with a first gear, a fourth gear and a fifth gear, one side of the first gear is engaged with the second gear, one end of the second gear is fixed with a connecting rod, and the other end of the second gear is provided with an installation block.

As a further scheme of the invention, a spring III is installed on the installation block, a spring II is installed at one end of the connecting rod, an installation groove is installed on the outer side of the spring II, the connecting rod is movably installed on the installation groove through the spring II, and the installation groove is fixed on the inner side wall of the support.

As a further scheme of the invention, a third gear is meshed with the other side of the second gear, a toothed roller is mounted at one end of the third gear, fixing plates are mounted at two ends of the toothed roller, two ends of the toothed roller are mounted on the bracket through the fixing plates, and the toothed roller is meshed with the first toothed disc.

According to a further scheme of the invention, one side of the gear four is engaged with a gear six, one side of the gear six is provided with a belt wheel three, the belt wheel three is wound with a belt wheel two, one end of the belt wheel two is provided with a belt wheel five, the belt wheel five is wound with a belt four, one end of the belt four is connected with a grinding roller two, one side of the grinding roller two is provided with a grinding roller one, one end of the grinding roller one is connected to the belt wheel five, and the grinding roller one and the grinding roller two are both arranged on a limiting plate one.

According to a further scheme of the invention, a fifth gear is meshed with a seventh gear, a fourth belt wheel is arranged on one side of the seventh gear, a third belt is wound outside the fourth belt wheel, two fluted discs are arranged at two ends of the inner part of the conveying belt, and a third transmission rod is connected to the middle of each fluted disc.

As a further scheme of the invention, the lower part of the third belt is connected to the third transmission rod, a waste material groove is arranged on one side of the support column, and a plurality of placing racks are arranged below the support column and the support frame.

As a further scheme of the invention, a plurality of movable shafts are mounted on the outer side surface of the transmission belt, two sides of each movable shaft are respectively provided with a reset plate, two ends of each reset plate are respectively provided with a first spring, one end of each spring is fixedly provided with a magnet plate, one side of each magnet plate is provided with a clamping plate, and four corners of the other side of each magnet plate are respectively provided with a cushion rod.

Compared with the prior art, the invention has the beneficial effects that:

according to the automobile machining steel plate drilling and polishing device, an automobile machining steel plate needing drilling and polishing is integrally placed in a placing box, a sliding block in the placing box is stretched through a plurality of springs to integrally move the automobile machining steel plate forward, a motor is started through an external controller after the automobile machining steel plate is assembled, the motor rotates slowly when being started, the rotating motor drives a belt wheel II to rotate through a belt on the belt wheel I, so that a reciprocating screw rod is driven to continuously rotate, and the rotating reciprocating screw rod drives a transmission rod II to continuously and slowly rotate.

According to the invention, when the steel plate is moved, the transmission rod II rotates to drive the first gear to rotate, the rotating first gear is meshed with the second gear to rotate, the rotating second gear is meshed with the third gear to drive the third gear to rotate, the gear roller is meshed with the first gear to rotate when the third gear rotates, the first gear is rotated to drive the transmission belt to move, the moving transmission belt drives the magnet plate to move through the plurality of movable shafts, the magnet plate is kept stable and balanced through the plurality of springs and the reset plate when moving, and when the magnet plate moves to the bottom of the placing box, the magnet plate pulls out the steel plate from the interior of the placing box through the clamping plate and adsorbs the steel plate on the magnet plate to move in a limiting manner.

When the invention drills, the reciprocating screw rod slowly rotates to drive the moving plate to do continuous reciprocating motion, when the moving plate moves to one end of the spring III through the reciprocating screw rod, the spring II compresses when the moving plate is abutted against the spring III, so that the gear II on the connecting rod is disengaged from the gear III and the gear I, so that the tooth roller stops rotating, when the tooth roller stops rotating, the transmission belt stops moving, so that the position of a steel plate needing drilling corresponding to a drill bit stops, the moving plate continuously moves through the reciprocating screw rod, and simultaneously, the external controller starts a plurality of drilling machines, the drilling machines open holes on the steel plate through the drill bit, the steel plate after being opened holes is driven by the continuously advancing polishing disc to move forwards, so that the steel plate after being rotated holes is polished through the polishing disc, when the moving plate is reset through the reciprocating screw rod, the spring III is disengaged from the abutment to enable the, therefore, the gear II is meshed with the gear I which rotates slowly, the gear III rotates, the fluted disc I is driven to rotate through the fluted roller, and the continuous work of the reciprocating screw rod keeps the continuous drilling effect.

When the magnetic plate separating device moves, a steel plate which is drilled and polished on one surface is driven to one side of the separating plate through the moving transmission belt so as to separate the steel plate on the magnetic plate, the separated steel plate falls on the transmission belt, the transmission rod II rotates and simultaneously drives the gear seventh to rotate through the five-gear meshing, the gear seventh rotates and drives the belt III to move through the belt wheel IV, the moving belt tee drives the fluted disc II to rotate through the transmission rod III, and when the fluted disc II rotates, the transmission belt is driven to move.

When the hole is rotated, one surface of the steel plate after being polished by the separation plate faces the lower part of the conveying belt, when the transmission rod II rotates, the gear IV rotates to be meshed with the gear VI to rotate, the rotating gear VI drives the belt wheel III to rotate, when the belt wheel III rotates, the belt II rotates, when the belt II rotates, the polishing roller I rotates, and when the polishing roller I rotates, the polishing roller II rotates to drive the polishing roller II to rotate, so that the rough edge polishing treatment is carried out on the steel plate moving on the conveying belt.

Drawings

Fig. 1 is a schematic structural diagram of a steel plate drilling and polishing device for automobile machining.

Fig. 2 is a schematic structural diagram of a first fluted disc in the steel plate drilling and grinding device for automobile machining.

Fig. 3 is a schematic structural diagram of a reciprocating screw rod in the steel plate drilling and polishing device for automobile processing.

Fig. 4 is a schematic structural diagram of a second fluted disc in the steel plate drilling and grinding device for automobile machining.

Fig. 5 is a schematic structural diagram of a sliding chute in the steel plate drilling and polishing device for automobile processing.

Fig. 6 is an enlarged schematic structural diagram of a position a in the steel plate drilling and polishing device for automobile machining.

Fig. 7 is an enlarged schematic structural diagram of a part B of a steel plate drilling and grinding device for automobile machining.

In the figure: 1. a support frame; 2. a first limiting plate; 3. placing a rack; 4. a support; 5. a first transmission rod; 6. a first fluted disc; 7. a transmission belt; 8. a movable shaft; 9. a magnet plate; 10. a reset plate; 11. a first spring; 12. a pad bar; 13. clamping a plate; 14. a motor; 15. a first belt wheel; 16. a first belt; 17. a second belt wheel; 18. a reciprocating screw rod; 19. a limiting block; 20. a second transmission rod; 21. a first gear; 22. a second gear; 23. a connecting rod; 24. a second spring; 25. mounting grooves; 26. mounting blocks; 27. a third spring; 28. a third gear; 29. installing a shaft; 30. a toothed roller; 31. a fixing plate; 32. a fourth gear; 33. a fifth gear; 34. a sixth gear; 35. a third belt wheel; 36. a second belt; 37. a seventh gear; 38. a belt wheel IV; 39. a third belt; 40. a third transmission rod; 41. a conveyor belt; 42. a second fluted disc; 43. a fifth belt wheel; 44. a fourth belt; 45. grinding a first grinding roller; 46. grinding a second grinding roller; 47. a strut; 48. placing a box; 49. a chute; 50. a slider; 51. a fourth spring; 52. a second limiting plate; 53. a card slot; 54. a waste chute; 55. a support pillar; 56. moving the plate; 57. a drilling machine; 58. a connector; 59. grinding disc; 60. a drill bit; 61. a slide bar; 62. and (4) disengaging the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, in the embodiment of the invention, a steel plate drilling and polishing device for automobile processing includes a support frame 1, a first limiting plate 2 is arranged on the inner side of the support frame 1, a conveying belt 41 is arranged on the inner side of the first limiting plate 2, a support 4 is fixed at one end of the support frame 1, a plurality of first transmission rods 5 are mounted on the support 4, a first fluted disc 6 is arranged at two ends of each of the plurality of first transmission rods 5, and a conveying belt 7 is arranged on each of the first fluted discs 6;

a second transmission rod 20 and a sliding rod 61 are installed on the side wall of the support 4, a reciprocating screw rod 18 is installed at one end of the second transmission rod 20, a second belt wheel 17 is installed at one end of the reciprocating screw rod 18, a first belt 16 is arranged on the second belt wheel 17, a first belt wheel 15 is arranged at one end of the first belt 16, a motor 14 is connected to one side of the first belt wheel 15, a support pillar 55 is arranged below the motor 14, an installation shaft 29 is sleeved on the outer side wall of the second transmission rod 20, and the second transmission rod 20;

the reciprocating screw rod 18 and the sliding rod 61 are sleeved with a moving plate 56, a plurality of drilling machines 57 are mounted on the moving plate 56, one end of each drilling machine 57 is provided with a connecting head 58, the outer side wall of each connecting head 58 is provided with a polishing disc 59, and one end of each connecting head 58 is provided with a drill bit 60;

the top surface of the support frame 1 is provided with a plurality of support rods 47, the top of each support rod 47 is provided with a placing box 48, the top of each placing box 48 is provided with a sliding groove 49, a sliding block 50 is arranged in each sliding groove 49, the side wall of each sliding block 50 is provided with a spring four 51, one end of each spring four 51 is arranged on each sliding block 50, the other end of each spring four 51 is arranged on each placing box 48, one end of each placing box 48 is provided with a clamping groove 53, two sides of each clamping groove 53 are provided with two limiting plates 52, each limiting plate 52 is arranged on each placing box 48, and the bottom surface of one end;

a limiting block 19 is fixed between the reciprocating screw rod 18 and the second transmission rod 20, a first gear 21, a fourth gear 32 and a fifth gear 33 are mounted on the second transmission rod 20, a second gear 22 is meshed with one side of the first gear 21, a connecting rod 23 is fixed at one end of the second gear 22, and a mounting block 26 is mounted at the other end of the second gear 22;

a third spring 27 is mounted on the mounting block 26, a second spring 24 is mounted at one end of the connecting rod 23, a mounting groove 25 is mounted on the outer side of the second spring 24, the connecting rod 23 is movably mounted on the mounting groove 25 through the second spring 24, the mounting groove 25 is fixed on the inner side wall of the support 4, a third gear 28 is meshed at the other side of the second gear 22, a toothed roller 30 is mounted at one end of the third gear 28, fixing plates 31 are mounted at two ends of the toothed roller 30, two ends of the toothed roller 30 are mounted on the support 4 through the fixing plates 31, and the toothed roller 30 is meshed on the first fluted disc 6;

a sixth gear 34 is meshed with one side of a fourth gear 32, a third belt wheel 35 is mounted on one side of the sixth gear 34, a second belt 36 is wound on the third belt wheel 35, a fifth belt wheel 43 is arranged at one end of the second belt 36, a fourth belt 44 is wound on the fifth belt wheel 43, a second grinding roller 46 is connected to one end of the fourth belt 44, a first grinding roller 45 is arranged on one side of the second grinding roller 46, one end of the first grinding roller 45 is connected to the fifth belt wheel 43, and the first grinding roller 45 and the second grinding roller 46 are both mounted on a first limiting plate 2;

a seventh gear 37 is meshed with one side of the fifth gear 33, a fourth belt wheel 38 is arranged on one side of the seventh gear 37, a third belt 39 is wound on the outer side of the fourth belt wheel 38, a second fluted disc 42 is arranged at each of two ends of the inner part of the conveying belt 41, a third transmission rod 40 is connected to the middle part of the second fluted disc 42, the lower part of the third belt 39 is connected to the third transmission rod 40, a waste material groove 54 is arranged on one side of the support column 55, and a plurality of placing racks 3 are arranged below the support column 55 and the;

7 outside surfaces of drive belt are installed a plurality of

loose axles

8, and 8 both sides of loose axle all are equipped with the board 10 that resets, and spring 11 is all installed at board 10 both ends that resets, and 11 one ends of spring are fixed with magnet board 9, and magnet board 9 one side is equipped with cardboard 13, the filler rod 12 is all installed to 9 opposite side four corners departments of magnet board.

The working principle of the invention is as follows:

the device needs to be connected with an external controller for overall control;

according to the invention, the steel plates for automobile processing, which need to be drilled and polished, are integrally placed in the placing box 48, the slide block 50 in the placing box 48 is stretched through the springs 51 to integrally move the steel plates for automobile processing forward, after the steel plates for automobile processing are assembled, the motor 14 is started through the external controller, the motor 14 rotates slowly when being started, the rotating motor 14 drives the belt wheel II 17 to rotate through the belt I16 on the belt wheel I15, so that the reciprocating screw rod 18 is driven to rotate continuously, and the rotating reciprocating screw rod 18 drives the transmission rod II 20 to rotate continuously and slowly;

when the steel plate is moved, the transmission rod II 20 rotates to drive the gear I21 to rotate, the rotating gear I21 is meshed with the gear II 22 to rotate, the rotating gear II 22 is meshed with the gear III 28 to rotate, the gear roller 30 is meshed with the gear plate I6 to rotate when the gear III 28 rotates, the gear plate I6 rotates to drive the transmission belt 7 to move, the moving transmission belt 7 drives the magnet plate 9 to move through the movable shafts 8, the magnet plate 9 keeps stable and balanced through the springs I11 and the reset plate 10 when moving, and when the magnet plate 9 moves to the bottom of the placing box 48, the magnet plate 9 pulls out the steel plate from the inside of the placing box 48 through the clamping plate 13 and adsorbs the steel plate to the magnet plate 9 to move in a limiting mode;

when drilling, when the reciprocating screw 18 rotates slowly, the moving plate 56 is driven to do continuous reciprocating motion, when the moving plate 56 moves to one end of the spring three 27 through the reciprocating screw 18, the spring two 24 compresses when abutting against the spring three 27, so that the gear two 22 on the connecting rod 23 is disengaged from the gear three 28 and the gear one 21, so that the tooth roller 30 stops rotating, when the tooth roller 30 stops rotating, the driving belt 7 stops moving, so that the position of the steel plate needing drilling corresponding to the drill bit 60 stops, while the moving plate 56 continues to move through the reciprocating screw 18, and simultaneously the external controller starts a plurality of drilling machines 57, the drilling machines 57 perform hole opening operation on the steel plate through the drill bit 60, the steel plate after hole opening is driven to move forwards by the continuously advancing polishing disc 59, so that the steel plate after hole rotation is polished through the polishing plate 59, when the reciprocating screw 56 returns through the reciprocating screw 18, the spring three 27 disengages from abutting against, so that the spring two 24 rebounds, the second gear 22 is meshed with the first gear 21 which rotates slowly, so that the third gear 28 rotates, the fluted disc 6 is driven to rotate by the fluted roller 30, and the reciprocating screw rod 18 continuously works to keep a continuous drilling effect;

when the steel plate is moved, the steel plate which is drilled and polished on one surface is driven to one side of the separation plate 62 through the movable transmission belt 7 so as to separate the steel plate on the magnet plate 9, the separated steel plate falls on the transmission belt 41, the transmission rod II 20 rotates and simultaneously drives the gear seven 37 to rotate through the engagement of the gear five 33, the gear seven 37 rotates and drives the belt III 39 to move through the belt pulley four 38, the movable belt III 39 drives the gear disc II 42 to rotate through the transmission rod III 40, and when the gear disc II 42 rotates, the transmission belt 41 is driven to move;

when the hole is rotated, the polished surface of the steel plate separated by the separation plate 62 faces the lower part of the conveying belt 41, when the transmission rod 20 rotates, the gear four 32 rotates to be meshed with the gear six 34 to rotate, the gear six 34 rotates to drive the belt wheel three 35 to rotate, when the belt wheel three 35 rotates, the belt two 36 rotates, when the belt two 36 rotates, the polishing roller one 45 rotates, and when the polishing roller one 45 rotates, the polishing roller two 46 rotates to perform rough edge polishing treatment on the steel plate moving on the conveying belt 41.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The steel plate drilling and polishing device for automobile machining comprises a support frame (1) and is characterized in that a first limiting plate (2) is arranged on the inner side of the support frame (1), a conveying belt (41) is arranged on the inner side of the first limiting plate (2), a support (4) is fixed at one end of the support frame (1), a plurality of first transmission rods (5) are mounted on the support (4), two ends of each of the plurality of first transmission rods (5) are respectively provided with a first fluted disc (6), and a driving belt (7) is arranged on each first fluted disc (6);

a second transmission rod (20) and a sliding rod (61) are mounted on the side wall of the support (4), a reciprocating screw rod (18) is mounted at one end of the second transmission rod (20), a second belt wheel (17) is mounted at one end of the reciprocating screw rod (18), a first belt (16) is arranged on the second belt wheel (17), a first belt wheel (15) is arranged at one end of the first belt (16), a motor (14) is connected to one side of the first belt wheel (15), a support column (55) is arranged below the motor (14), a mounting shaft (29) is sleeved on the outer side wall of the second transmission rod (20), and the second transmission rod (20) is mounted on the;

the reciprocating screw rod (18) and the sliding rod (61) are sleeved with a movable plate (56), the movable plate (56) is provided with a plurality of drilling machines (57), one end of each drilling machine (57) is provided with a connecting head (58), the outer side wall of each connecting head (58) is provided with a polishing disc (59), and one end of each connecting head (58) is provided with a drill bit (60);

support frame (1) top installs a plurality of branches (47) on the surface, branch (47) top is equipped with places case (48), places case (48) top and has seted up spout (49), is equipped with slider (50) in spout (49), be equipped with four (51) of spring on slider (50) the lateral wall, install on slider (50) four (51) one end of spring, and four (51) other ends of spring are installed on placing case (48), draw-in groove (53) have been seted up to the one end of placing case (48), and the both sides of draw-in groove (53) all are equipped with two (52) of limiting plate, two (52) of limiting plate are installed on placing case (48), place the one end bottom of case (48) and install on the surface and break away from board (62).

2. The steel plate drilling and grinding device for automobile machining is characterized in that a limiting block (19) is fixed between the reciprocating screw rod (18) and the second transmission rod (20), a first gear (21), a fourth gear (32) and a fifth gear (33) are mounted on the second transmission rod (20), the second gear (22) is meshed with one side of the first gear (21), a connecting rod (23) is fixed at one end of the second gear (22), and a mounting block (26) is mounted at the other end of the second gear (22).

3. The steel plate drilling and grinding device for the automobile machining is characterized in that a third spring (27) is mounted on the mounting block (26), a second spring (24) is mounted at one end of the connecting rod (23), a mounting groove (25) is mounted on the outer side of the second spring (24), the connecting rod (23) is movably mounted on the mounting groove (25) through the second spring (24), and the mounting groove (25) is fixed on the inner side wall of the support (4).

4. The steel plate drilling and grinding device for the automobile machining is characterized in that a gear III (28) is meshed with the other side of the gear II (22), a gear roller (30) is mounted at one end of the gear III (28), fixing plates (31) are mounted at two ends of the gear roller (30), two ends of the gear roller (30) are mounted on a support (4) through the fixing plates (31), and the gear roller (30) is meshed with a gear disc I (6).

5. The steel plate drilling and polishing device for the automobile machining is characterized in that a gear six (34) is meshed on one side of a gear four (32), a belt wheel three (35) is installed on one side of the gear six (34), a belt second (36) is wound on the belt wheel three (35), a belt wheel five (43) is arranged at one end of the belt second (36), a belt four (44) is wound on the belt wheel five (43), a polishing roller two (46) is connected to one end of the belt four (44), a polishing roller one (45) is arranged on one side of the polishing roller two (46), one end of the polishing roller one (45) is connected to the belt wheel five (43), and the polishing roller one (45) and the polishing roller two (46) are installed on the limiting plate one (2).

6. The steel plate drilling and grinding device for the automobile machining is characterized in that a gear seven (37) is meshed on one side of the gear five (33), a belt wheel four (38) is arranged on one side of the gear seven (37), a belt third (39) is wound on the outer side of the belt wheel four (38), two fluted discs (42) are arranged at two inner ends of the conveying belt (41), and a transmission rod third (40) is connected to the middles of the fluted discs (42).

7. The steel plate drilling and grinding device for automobile machining is characterized in that a third belt (39) is connected to a third transmission rod (40) below, a waste trough (54) is arranged on one side of a support column (55), and a plurality of placing racks (3) are arranged below the support column (55) and the support frame (1).

8. The steel plate drilling and grinding device for the automobile machining is characterized in that a plurality of movable shafts (8) are mounted on the outer side surface of the transmission belt (7), reset plates (10) are arranged on two sides of each movable shaft (8), springs (11) are mounted at two ends of each reset plate (10), a magnet plate (9) is fixed at one end of each spring (11), a clamping plate (13) is arranged on one side of each magnet plate (9), and cushion rods (12) are mounted at four corners of the other side of each magnet plate (9).