Round tube inspection machine for automobile steering system and inspection method

Abstract

The invention discloses a circular tube inspection machine for an automobile steering system and an inspection method.The circular tube inspection machine comprises a base and an inspection frame connected to the top of the base, the inspection frame is connected with a plurality of lifting tables and a plurality of fixing tables, the lifting tables are movably connected to the fixing tables, and the lifting tables are connected with second air cylinders used for driving the lifting tables to ascend and descend; the fixing table is connected with a positioning mechanism used for positioning the round pipe, the positioning mechanism comprises a plurality of positioning plates, a plurality of pushing plates and a first air cylinder, the first air cylinder is used for driving the plurality of pushing plates to horizontally reciprocate, the pushing plates are used for driving the positioning plates to obliquely move, and the end of the detection frame is connected with a discharging mechanism. And the detection frame is connected with an inspection mechanism. According to the device, a plurality of circular pipes can be sequentially lifted and moved, so that the detection efficiency is improved, during detection, the circular pipes can be positioned and fixed, the stability of the circular pipes is improved, inspection operation is facilitated, finally, the circular pipes can be screened, operation is simple and convenient, and traditional manual operation is replaced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile steering system component processing, in particular to a round tube inspection machine and an inspection method for an automobile steering system. Background Art

[0002] A series of devices used to change or maintain the direction of a car's driving or reverse direction is called a car steering system. It can control the direction of the car according to the driver's wishes and is crucial to the driving safety of the car. Therefore, the parts of the car steering system are called safety parts. The round tube is one of the components of the safety part. It is made of steel and is hollowed out in the middle.

[0003] During round tube processing, inspection is required to determine whether it meets the production standards. However, existing inspections are usually performed manually, that is, a handheld go / no-go gauge is used to inspect the round tube. This operation is time-consuming and laborious, and long hours of work make the body physically tired, which affects the inspection quality and efficiency, resulting in a large number of defective products, affecting the subsequent assembly of the automobile steering system. Summary of the invention

[0004] The purpose of the present invention is to provide a round tube inspection machine and inspection method for automobile steering systems, which have the advantages of improving the stability of the round tube, accelerating the detection efficiency, and simple and convenient operation, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a round tube inspection machine for an automobile steering system, comprising a base and a detection frame connected to the top of the base, the detection frame being connected to multiple lifting platforms and multiple fixed platforms, the lifting platforms being movably connected to the fixed platforms, and the lifting platforms being connected to a second cylinder for driving the lifting platforms to rise and fall, the fixed platforms being connected to a positioning mechanism for positioning the round tubes, the positioning mechanism comprising multiple positioning plates, multiple push plates, and a first cylinder, the first cylinder being used to drive multiple push plates to move horizontally back and forth, the push plates being used to drive the positioning plates to move tiltably, the ends of the detection frame being connected to a discharge mechanism, and the detection frame being connected to an inspection mechanism.

[0006] Preferably, the power output end of the cylinder 2 is connected to a lifting plate, the top of the lifting plate is connected to a plurality of connecting plates, and the ends of the connecting plates are fixedly connected to the lifting platform.

[0007] Preferably, the positioning mechanism also includes multiple slide grooves, multiple sliding blocks, multiple guide plates, cross plates, and multiple inner cavities. The slide grooves are arranged on the sides of the pushing plate, and the slide grooves are used to guide the sliding blocks. One end of the positioning plate is hinged to the sliding block. The guide plate is used to guide the pushing plate, and the bottom of the guide plate is connected to the cross plate. The power output end of the cylinder is connected to the cross plate. The inner cavity is arranged in a fixed platform, and the pushing plate is located in the inner cavity.

[0008] Preferably, the positioning plate is arranged at an angle, and the positioning plate is slidably connected to the fixing platform.

[0009] Preferably, a rectangular hole is provided at the bottom of the fixing platform, the rectangular hole is connected to the inner cavity, and the guide plate is slidably connected to the rectangular hole.

[0010] Preferably, the discharging mechanism includes a discharging channel, a movable door, a support plate, and cylinder three, the support plate is connected to the end of the detection frame, the discharging channel is connected to the support plate, the movable door is connected to the discharging channel through a hinge, and the cylinder three is used to drive the movable door to open or close.

[0011] Preferably, the end of the cylinder three is hinged to the side of the support plate, and the power output end shaft of the cylinder three is connected to the movable door.

[0012] Preferably, the inspection mechanism includes two driving cylinders, a go / no-go gauge, a detection cylinder, and a detection head. The two driving cylinders are relatively distributed, and the driving cylinders are fixed to the detection frame. The power output end of the driving cylinder is connected to the go / no-go gauge, and the detection cylinder is connected to one side of the detection frame, and the power output end of the detection cylinder is connected to the detection head.

[0013] Preferably, the go / no-go gauge comprises an outer head and an inner head, the inner head is connected to the end of the outer head, and the diameter of the inner head is smaller than the diameter of the outer head.

[0014] An inspection method for a round tube inspection machine for an automobile steering system comprises the following steps: Step 1: Cylinder 2 can drive the lifting plate to rise and fall, and simultaneously drive multiple lifting platforms to rise and fall. Combined with the use of a fixed platform, multiple round tubes can be lifted and moved in sequence, which can speed up the detection efficiency; Step 2: During the inspection, the top of the lifting platform is aligned with the top of the corresponding fixed platform, and then the cylinder drives the cross plate to move, which drives multiple guide plates to move synchronously. The guide plate drives the push plate to move, so that the sliding block moves up on the slide slot, and the positioning plate can be driven forward. The positioning plate is pressed against the corresponding round tube, which can realize the positioning and fixing of the round tube, improve the stability of the round tube, and facilitate the inspection operation; Step three: The driving cylinder drives the go / no-go gauge to move back and forth, and the detection cylinder drives the detection head to move back and forth, which is convenient for detecting the inner diameter size and length of the round tube. Then the qualified round tube is discharged from the discharge channel. Cylinder three can drive the movable door to open and discharge the unqualified round tube, thereby realizing the screening of the round tube, which is highly practical.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is provided with a positioning mechanism and an inspection mechanism, and cylinder 2 can drive four lifting plates to rise and fall synchronously. In conjunction with the use of a fixed platform, multiple round tubes can be lifted and moved in sequence, thereby accelerating the detection efficiency. During detection, cylinder 1 drives the cross plate to move, and simultaneously drives multiple guide plates to move. The guide plate drives the push plate to move, so that the sliding block moves up on the slide groove, and the positioning plate can be driven forward. The positioning plate is pressed against the corresponding round tube, which can realize the positioning and fixation of the round tube, improve the stability of the round tube, and facilitate inspection operations. Finally, the screening of the round tube can be realized. The operation is simple and convenient, with high flexibility, and it can replace traditional manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the connection structure between the driving cylinder and the go / no-go gauge of the present invention; Figure 3 It is a schematic diagram of the bottom structure of the detection frame of the present invention; Figure 4 It is a schematic diagram of the connection structure between the discharge channel and the detection frame of the present invention; Figure 5 It is a schematic diagram of the internal structure of the fixing platform of the present invention; Figure 6 for Figure 5 A partial diagram of .

[0017] In the figure: 1. base; 2. discharge channel; 3. movable door; 4. support plate; 5. lifting platform; 6. fixed platform; 7. positioning plate; 8. detection frame; 9. detection cylinder; 10. outer head; 11. driving cylinder; 12. mounting hole; 13. inner head; 14. vertical plate; 15. cylinder one; 16. guide plate; 17. rectangular hole; 18. horizontal plate; 19. connecting plate; 20. lifting plate; 21. cylinder two; 22. cylinder three; 23. push plate; 24. inner cavity; 25. slide groove; 26. sliding block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 6The present invention provides a round tube inspection machine for automobile steering system, including a base 1 and a detection frame 8 connected to the top of the base 1, the detection frame 8 is connected to multiple lifting platforms 5 and multiple fixed platforms 6, the lifting platforms 5 are movably connected to the fixed platforms 6, and the lifting stability of the lifting platforms 5 can be improved. The lifting platform 5 is connected to a cylinder 21 for driving the lifting platform 5 to rise and fall, and the fixed platform 6 is connected to a positioning mechanism for positioning the round tube, the positioning mechanism includes multiple positioning plates 7, multiple push plates 23, and a cylinder 15, the cylinder 15 is used to drive the multiple push plates 23 to move horizontally back and forth, and the push plate 23 is used to drive the positioning plate 7 to move tilted, the end of the detection frame 8 is connected to a discharge mechanism, and the detection frame 8 is connected to an inspection mechanism.

[0020] There are four lifting platforms 5 and four fixed platforms 6, each of which corresponds to one fixed platform 6. The four fixed platforms 6 are raised from right to left in sequence and are distributed in a stepped manner. At the same time, the top surfaces of the lifting platforms 5 and the fixed platforms 6 are inclined to facilitate the lifting of the round tube by the lifting platform 5 so that the round tube can roll to the next lifting platform 5. When the positioning plate 7 is pressed against the round tube, the next fixed platform 6 can be used to lock and fix the round tube, thereby improving the stability of the round tube.

[0021] When inspecting the round tube, the cylinder 15 drives the cross plate 18 to move, which can synchronously drive the four guide plates 16 to move. The guide plate 16 drives the push plate 23 to move, so that the sliding block 26 slides on the slide groove 25, and the sliding direction is upward, thereby driving the positioning plate 7 to move forward, so that the end of the positioning plate 7 is pressed against the round tube, and the four round tubes can be synchronously locked and fixed, which is convenient for the inspection organization to inspect them, and has strong practicality.

[0022] When the round tube needs to be moved, the cylinder 15 drives the cross plate 18 to move back, which can synchronously drive the four guide plates 16 to move back. The guide plate 16 drives the push plate 23 to move back, so that the sliding block 26 slides on the slide groove 25, and the sliding direction is downward, thereby driving the positioning plate 7 to move back, so that the positioning plate 7 is located in the inner cavity 24, and the four round tubes are synchronously loosened at the same time. At this time, the end of the positioning plate 7 is aligned with the top of the corresponding fixed platform 6 to facilitate the rolling of the round tube.

[0023] The power output end of the cylinder 2 21 is connected to a lifting plate 20 , and the top of the lifting plate 20 is connected to a plurality of connecting plates 19 , and the ends of the connecting plates 19 are fixedly connected to the lifting platform 5 .

[0024] The positioning mechanism also includes multiple slide grooves 25, multiple sliding blocks 26, multiple guide plates 16, a transverse plate 18, and multiple inner cavities 24. The slide grooves 25 are arranged on the side of the pushing plate 23, and the slide grooves 25 are used to guide the sliding blocks 26 to improve the stability of the lifting and lowering of the sliding blocks 26. One end of the positioning plate 7 is hinged to the sliding block 26. The guide plate 16 is used to guide the pushing plate 23, and the bottom of the guide plate 16 is connected to the transverse plate 18. The power output end of the cylinder 15 is connected to the transverse plate 18. The inner cavity 24 is arranged in the fixed platform 6, and the pushing plate 23 is located in the inner cavity 24.

[0025] The positioning plate 7 is tilted and connected to the fixing platform 6 in a sliding manner, thereby improving the stability of the reciprocating movement of the positioning plate 7 .

[0026] A rectangular hole 17 is provided at the bottom of the fixing platform 6, and the rectangular hole 17 is connected to the inner cavity 24. The guide plate 16 is slidably connected to the rectangular hole 17. The cross plate 18 can synchronously drive the four guide plates 16 to move. Combined with the use of the rectangular hole 17, the push plate 23 can move stably and play a good guiding role.

[0027] The discharge mechanism includes a discharge channel 2, a movable door 3, a support plate 4, and a cylinder 3 22. The support plate 4 is connected to the end of the detection frame 8, the discharge channel 2 is connected to the support plate 4, the movable door 3 is connected to the discharge channel 2 through a hinge, and the cylinder 3 22 is used to drive the movable door 3 to open or close. When the round tube tested is qualified, the movable door 3 is in a closed state, and the round tube slides down along the length direction of the discharge channel 2. When the round tube tested is unqualified, the cylinder 3 22 can drive the movable door 3 to open, which is convenient for discharging the round tube, realizing the screening of the round tube, and facilitating people's subsequent operations.

[0028] The end of the cylinder three 22 is hinged to the side of the support plate 4, and the power output end shaft of the cylinder three 22 is connected to the movable door 3.

[0029] The inspection mechanism includes two driving cylinders 11, a go / no-go gauge, a detection cylinder 9, and a detection head. The two driving cylinders 11 are relatively distributed, and the driving cylinders 11 are fixed to the detection frame 8. The power output end of the driving cylinder 11 is connected to the go / no-go gauge. The detection cylinder 9 is connected to one side of the detection frame 8, and the power output end of the detection cylinder 9 is connected to the detection head.

[0030] When checking the round tube, the driving cylinder 11 drives the go / no-go gauge to move back and forth, the inner head 13 can be inserted into the round tube, while the outer head 10 cannot enter the round tube, indicating that the inner diameter size of the round tube is qualified.

[0031] The detection cylinder 9 can drive the detection head to move. When the detection head contacts the round tube, the stroke length of the detection head is compared with the preset value. When it exceeds or is less than the preset value, it indicates that the length of the round tube is unqualified.

[0032] The go / no-go gauge comprises an outer head 10 and an inner head 13 . The inner head 13 is connected to the end of the outer head 10 , and the diameter of the inner head 13 is smaller than the diameter of the outer head 10 .

[0033] The bottom of the support plate 4 is connected to a vertical plate 14, and the cylinder 15 is fastened to the vertical plate 14 by bolts to improve the stability of the cylinder 15.

[0034] A mounting hole 12 is provided on the side of the detection frame 8, and the mounting hole 12 is connected to the blowing mechanism. The blowing mechanism is a prior art, including an air pump, a hose, and a nozzle. One end of the hose is connected to the exhaust end of the air pump, and the other end is connected to the nozzle, and the nozzle is docked with the mounting hole 12. When the round tube is located on the first lifting platform 5 on the right, the air pump is started to work and high-pressure gas is ejected from the nozzle, which can clean the impurities inside the round tube and facilitate subsequent detection operations.

[0035] An inspection method for a round tube inspection machine for an automobile steering system comprises the following steps: Step 1: The air cylinder 21 can drive the lifting plate 20 to move up and down, and simultaneously drive the multiple lifting platforms 5 to move up and down, and then cooperate with the use of the fixed platform 6 to lift and move multiple round tubes in sequence, which can speed up the detection efficiency; Step 2: During the inspection, the top of the lifting platform 5 is aligned with the top of the corresponding fixed platform 6, and then the cylinder 15 drives the horizontal plate 18 to move, and simultaneously drives the multiple guide plates 16 to move, and the guide plate 16 drives the push plate 23 to move, so that the sliding block 26 moves up on the slide groove 25, and the positioning plate 7 can be driven to move forward. The positioning plate 7 is pressed against the corresponding round tube, which can realize the positioning and fixing of the round tube, improve the stability of the round tube, and facilitate the inspection operation; Step three: the driving cylinder 11 drives the go / no-go gauge to move back and forth, and the detection cylinder 9 drives the detection head to move back and forth, so as to facilitate the detection of the inner diameter size and the length of the round tube. Then the qualified round tube is discharged from the discharge channel 2, and the cylinder three 22 can drive the movable door 3 to open and discharge the unqualified round tube, so as to realize the screening of the round tube, which is highly practical.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A round tube inspection machine for an automobile steering system, comprising a base (1) and a detection frame (8) connected to the top of the base (1), characterized in that: The detection frame (8) is connected to a plurality of lifting platforms (5) and a plurality of fixed platforms (6); the lifting platforms (5) are movably connected to the fixed platforms (6), and the lifting platforms (5) are connected to a second cylinder (21) for driving the lifting platforms (5) to move up and down; the fixed platforms (6) are connected to a positioning mechanism for positioning the round tube; the positioning mechanism comprises a plurality of positioning plates (7), a plurality of push plates (23), and a first cylinder (15); the first cylinder (15) is used to drive the plurality of push plates (23) to move horizontally back and forth, and the push plates (23) are used to drive the positioning plates (7) to move tilted; a discharge mechanism is connected to the end of the detection frame (8), and the detection frame (8) is connected to an inspection mechanism.

2. The round tube inspection machine for automobile steering system according to claim 1, characterized in that: The power output end of the second cylinder (21) is connected to a lifting plate (20), the top of the lifting plate (20) is connected to a plurality of connecting plates (19), and the ends of the connecting plates (19) are fixedly connected to the lifting platform (5).

3. The round tube inspection machine for automobile steering system according to claim 1, characterized in that: The positioning mechanism further comprises a plurality of slide grooves (25), a plurality of sliding blocks (26), a plurality of guide plates (16), a transverse plate (18), and a plurality of inner cavities (24); the slide grooves (25) are arranged on the side of the push plate (23), and the slide grooves (25) are used to guide the sliding blocks (26); one end of the positioning plate (7) is hinged to the sliding block (26); the guide plate (16) is used to guide the push plate (23), and the bottom of the guide plate (16) is connected to the transverse plate (18); the power output end of the cylinder 1 (15) is connected to the transverse plate (18); the inner cavity (24) is arranged in the fixed platform (6), and the push plate (23) is located in the inner cavity (24).

4. The round tube inspection machine for automobile steering system according to claim 3, characterized in that: The positioning plate (7) is arranged to be inclined, and the positioning plate (7) is slidably connected to the fixing platform (6).

5. The round tube inspection machine for automobile steering system according to claim 3, characterized in that: A rectangular hole (17) is provided at the bottom of the fixing platform (6), the rectangular hole (17) is connected to the inner cavity (24), and the guide plate (16) is slidably connected to the rectangular hole (17).

6. The round tube inspection machine for automobile steering system according to claim 1, characterized in that: The discharge mechanism comprises a discharge channel (2), a movable door (3), a support plate (4), and a third cylinder (22); the support plate (4) is connected to the end of the detection frame (8); the discharge channel (2) is connected to the support plate (4); the movable door (3) is connected to the discharge channel (2) via a hinge; and the third cylinder (22) is used to drive the movable door (3) to open or close.

7. The round tube inspection machine for automobile steering system according to claim 6, characterized in that: The end of the cylinder three (22) is hinged to the side of the support plate (4), and the power output end shaft of the cylinder three (22) is connected to the movable door (3).

8. The round tube inspection machine for automobile steering system according to claim 1, characterized in that: The inspection mechanism comprises two driving cylinders (11), a go / no-go gauge, a detection cylinder (9), and a detection head. The two driving cylinders (11) are relatively distributed, and the driving cylinders (11) are fixed to the detection frame (8). The power output end of the driving cylinder (11) is connected to the go / no-go gauge. The detection cylinder (9) is connected to one side of the detection frame (8), and the power output end of the detection cylinder (9) is connected to the detection head.

9. The round tube inspection machine for automobile steering system according to claim 8, characterized in that: The go / no-go gauge comprises an outer head (10) and an inner head (13); the inner head (13) is connected to the end of the outer head (10), and the diameter of the inner head (13) is smaller than the diameter of the outer head (10).

10. The inspection method of a round tube inspection machine for automobile steering system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The air cylinder 2 (21) can drive the lifting plate (20) to move up and down, and simultaneously drive the multiple lifting platforms (5) to move up and down, and then cooperate with the use of the fixed platform (6) to make multiple round tubes lift and move in sequence, which can speed up the detection efficiency; Step 2: During the inspection, the top of the lifting platform (5) is aligned with the top of the corresponding fixed platform (6), and then the cylinder 1 (15) drives the horizontal plate (18) to move, and simultaneously drives the multiple guide plates (16) to move. The guide plates (16) drive the push plates (23) to move, so that the sliding block (26) moves upward on the slide groove (25), and the positioning plate (7) can be driven to move forward. The positioning plate (7) is pressed against the corresponding round tube, which can realize the positioning and fixing of the round tube, improve the stability of the round tube, and facilitate the inspection operation; Step 3: The driving cylinder (11) drives the go / no-go gauge to move back and forth, and the detection cylinder (9) drives the detection head to move back and forth, so as to facilitate the detection of the inner diameter size and the length of the round tube. Then, the qualified round tube is discharged from the discharge channel (2). The cylinder 3 (22) can drive the movable door (3) to open and discharge the unqualified round tube, so as to realize the screening of the round tube, which is highly practical.

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