A device and method for testing the bending degree of aluminum profile frames

Abstract

The invention discloses a device and method for testing the curvature of an aluminum profile frame, and relates to the technical field of aluminum profile frame detection. The adjusting mechanism comprises a supporting shaft fixedly connected to the bottom of a rotating table, the supporting shaft is rotatably connected to an operating table, a ratchet device is fixedly connected to the bottom end of the supporting shaft, a connecting rod is rotatably connected to the outside of the supporting shaft, a positioning mechanism is arranged between the connecting rod and the operating table, a rotating groove is arranged on one side of the outer surface of the connecting rod, and a pushing mechanism used in conjunction with the ratchet device is arranged on the connecting rod. The application places the aluminum profile frame on the supporting mechanism, and the adjusting mechanism can drive the aluminum profile frame to rotate in a specific direction, and the detection personnel can move the detection equipment along the surface of the aluminum profile frame in the direction opposite to the rotation direction, so that the detection personnel can perform a comprehensive detection of the aluminum profile frame without walking back and forth, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum profile frame detection, and in particular to an aluminum profile frame curvature testing device and a testing method. Background Art

[0002] Aluminum profiles are easily deformed due to collision during processing, so testing the curvature of the aluminum profile frame is a necessary process. Under the existing technology, when testing the curvature of the aluminum profile frame, the inspectors use curvature testing equipment to test it.

[0003] After searching, the Chinese patent publication number is CN213022604U, and the publication date is 2021-04-20. It discloses a device for testing the curvature of an aluminum profile frame, including a first base, a lateral moving device is provided on one side of the first base, a first slide groove is opened on the first base, a lead screw is provided in the first slide groove, a first slide seat is provided on the lead screw, a second base is provided above the first slide seat, a vertical moving device is provided above the second base, the vertical moving device includes a second slide seat, a first clamping device is provided above the second slide seat, and a second clamping device is provided on the right side above the first base. The utility model clamps the frame by a first clamping device that can adjust the position in cooperation with a second clamping device, and cooperates with a pressure sensor to put the frame in the most natural state, reducing the influence of external factors such as gravity on the test results; the device has a simple structure, is easy to implement, has high flexibility and high precision. However, in the existing method, when testing the curvature of the aluminum profile frame, the aluminum profile frame needs to be placed on an operating platform and fixed. After that, the inspector uses the detection equipment to detect along the surface of the aluminum profile frame. Since the aluminum profile frame is in a fixed state, the inspector needs to walk back and forth to perform a comprehensive inspection of the aluminum profile frame, which is not convenient enough. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for testing the curvature of an aluminum profile frame, so as to solve the problems mentioned in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A device for testing the curvature of an aluminum profile frame comprises a support table, the top of which is fixedly connected to an operating table via a cylinder, a rotating table is arranged on the operating table, a clamping mechanism for fixing the aluminum profile frame and a supporting mechanism for placing the aluminum profile frame are arranged on the outer surface of the rotating table, and an adjusting mechanism for rotating the aluminum profile frame so as to facilitate the movement of a detection device over the aluminum profile frame for detection is arranged at the bottom of the rotating table.

[0007] The adjustment mechanism includes a support shaft fixedly connected to the bottom of the rotating table, the support shaft is rotatably connected to the operating table, the bottom end of the support shaft is fixedly connected to a ratchet device, the outside of the support shaft is rotatably connected to a connecting rod, a positioning mechanism is arranged between the connecting rod and the operating table, a rotating groove is opened on one side of the outer surface of the connecting rod, and a pushing mechanism used in conjunction with the ratchet device is arranged on the connecting rod.

[0008] The pushing mechanism comprises a rotating shaft rotatably connected in the rotating groove and an elastic sheet fixedly connected to the outer surface of the connecting rod, a push plate used in conjunction with the ratchet teeth on the ratchet device is fixedly connected to the rotating shaft, and the elastic sheet is attached to the push plate.

[0009] As a further solution of the present invention: the clamping mechanism includes a first screw rod rotatably connected to the rotating table, a clamping member 1 is threadedly connected to the first screw rod, a limiting mechanism is arranged between the clamping member 1 and the rotating table, a first handle is fixedly connected to one end of the first screw rod, a connecting block is fixedly connected to the clamping member 1, a second screw rod is rotatably connected to the connecting block, a clamping member 2 is threadedly connected to the second screw rod, a first baffle plate and a second baffle plate are respectively fixedly connected to the clamping member 2, and a second handle is fixedly connected to one end of the second screw rod.

[0010] As a further solution of the present invention: the first clamping member is composed of two clamping plates arranged symmetrically along the left and right of the center of the rotating table, and the second clamping member is composed of two L-shaped rods arranged symmetrically along the front and back of the center of the connecting block. The first screw rod and the second screw rod are both bidirectional screw rods, and the L-shaped rod is slidably connected to the clamping plates.

[0011] As a further solution of the present invention: the limiting mechanism includes a connecting arm fixedly connected to the outer surface of the rotating table, two connecting arms are symmetrically arranged along the center of the rotating table, the bottom of the connecting arm is flush with the bottom of the rotating table, and a T-slot is provided on the top of the connecting arm. A T-block is slidably connected in the T-slot, the T-block is fixedly connected to the clamping plate, and one side of the T-slot cavity is open.

[0012] As a further solution of the present invention: the supporting mechanism includes a supporting arm fixedly connected to the outer surface of the rotating table, and two supporting arms are symmetrically arranged front and back along the center of the rotating table. The top of the supporting arm is flush with the top of the rotating table. A through groove is penetrated on one side of the supporting arm, and one end of the L-shaped rod passes through the through groove, and the through groove and the L-shaped rod are slidably connected.

[0013] As a further solution of the present invention: the positioning mechanism includes a support block fixedly connected above the outer surface of the connecting rod and a groove opened at the bottom of the operating table, the support block is connected to the positioning block through a reset mechanism, one side of the top of the positioning block is set to be an inclined surface, and one side of the top of the groove cavity is set to be an inclined surface.

[0014] As a further solution of the present invention: the reset mechanism includes a movable groove opened at the bottom of the support block, the movable groove is slidably connected to the positioning block, a spring is fixedly connected in the movable groove, and the spring is fixedly connected to the positioning block.

[0015] As a further solution of the present invention: rollers are arranged at the bottom of the rotating table, and a plurality of the rollers are arranged in a ring-shaped distribution along the bottom of the rotating table, and the rollers are attached to the operating table.

[0016] The present invention also discloses a testing method for an aluminum profile frame curvature testing device, which specifically comprises the following steps:

[0017] S1. First, place the aluminum profile frame to be inspected on the support arm. Then, by rotating the first handle, the first screw drives the two clamps to move relative to each other under the action of the limit mechanism. Then, the second handle is rotated to drive the two L-shaped rods to move relative to each other, thereby driving the first baffle plate and the second baffle plate on the L-shaped rod to move. The aluminum profile frame to be inspected is lightly clamped by the clamp plate, the first baffle plate and the second baffle plate.

[0018] S2. Then, the height of the operating table is adjusted by using the air cylinder to a suitable height. After that, the detection equipment is placed on the frame of the aluminum profile to be detected for detection. After a part of the frame of the aluminum profile to be detected is detected, the connecting rod is pushed, and the push plate is stuck in the teeth of the ratchet device, so that the connecting rod is pushed to drive the ratchet device to rotate, and then the support arm is driven to rotate through the support shaft and the rotating table, thereby driving the frame of the aluminum profile to be detected to rotate, so as to achieve the side change of the frame of the aluminum profile to be detected;

[0019] S3. Finally, the connecting rod is reset. During the resetting process, the positioning block, the reset mechanism and the groove are used to cooperate to position the connecting rod. Under the action of the elastic sheet, the push plate is always stuck in the tooth gap of the ratchet device. After that, the aluminum profile frame to be inspected after the side change is inspected. Similarly, the side change steps in S2 are repeated until the aluminum profile frame to be inspected is fully inspected.

[0020] The present invention provides a device and method for testing the curvature of an aluminum profile frame. Compared with the prior art, the device and method have the following beneficial effects:

[0021] (1) The present application places the aluminum profile frame on a supporting mechanism, and the aluminum profile frame can be driven to rotate in a specific direction through an adjusting mechanism. The inspector can move the inspection device along the surface of the aluminum profile frame in the direction opposite to the rotation direction, so that the inspector can conduct a comprehensive inspection of the aluminum profile frame without having to move back and forth, which is convenient to operate.

[0022] (2) The present application sets up a clamping mechanism to clamp and fix the aluminum profile frame during detection, thereby preventing the aluminum profile frame from shifting during rotation and affecting the detection effect.

[0023] (3) The present application sets a positioning mechanism and positions the connecting rod so that the rotating table can rotate in one direction, making it easier for inspectors to inspect the aluminum profile frame.

[0024] (4) The present application sets a limit mechanism to limit the position of the splint, which is beneficial for the stable movement of the splint. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first perspective stereogram of the present invention;

[0026] Figure 2 It is a second viewing angle stereogram of the present invention;

[0027] Figure 3 A three-dimensional diagram of the clamping mechanism and the adjusting mechanism of the present invention;

[0028] Figure 4 is a three-dimensional cross-sectional view of the operating table of the present invention;

[0029] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A;

[0030] Figure 6 This is a disassembled view of the connecting arm and the rotating platform of the present invention;

[0031] Figure 7 is a three-dimensional cross-sectional view of a connecting rod of the present invention;

[0032] Figure 8 It is a three-dimensional cross-sectional view of the positioning block of the present invention.

[0033] In the figure: 1. support table; 2. cylinder; 3. operating table; 4. rotating table; 5. clamping mechanism; 51. first screw rod; 52. limiting mechanism; 521. connecting arm; 522. T-slot; 523. T-block; 53. first handle; 54. connecting block; 55. second screw rod; 56. first baffle plate; 57. second baffle plate; 58. second handle; 6. supporting mechanism; 61. supporting arm; 62. through slot; 7. adjusting mechanism; 71. supporting shaft; 72. ratchet device; 73. connecting rod; 74. positioning mechanism; 741. supporting block; 742. groove; 743. resetting mechanism; 7431. movable slot; 7432. spring; 744. positioning block; 75. rotating slot; 76. pushing mechanism; 761. rotating shaft; 762. elastic sheet; 763. push plate; 8. clamping plate; 9. L-shaped rod; 10. roller. DETAILED DESCRIPTION

[0034] 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. Embodiment 1:

[0035] See also Figure 1-8As shown, the present invention is a device for testing the curvature of an aluminum profile frame, comprising a support table 1, the top of the support table 1 is fixedly connected to an operating table 3 through a cylinder 2, the cylinder 2 is electrically connected to an external power supply and is controlled by an external control program, a rotating table 4 is arranged on the operating table 3, the outer surface of the rotating table 4 is provided with a clamping mechanism 5 for fixing the aluminum profile frame, and a supporting mechanism 6 for placing the aluminum profile frame, the bottom of the rotating table 4 is provided with an adjusting mechanism 7 for rotating the aluminum profile frame so that the detection device can move above the aluminum profile frame for detection; the detection device is an existing device, such as a sensor, the adjusting mechanism 7 comprises a supporting shaft 71 fixedly connected to the bottom of the rotating table 4, the supporting shaft 71 is rotatably connected to the operating table 3, the bottom end of the supporting shaft 71 is fixedly connected to a ratchet device 72, and the outer side of the supporting shaft 71 is rotatably connected to a connecting rod 7 3. A positioning mechanism 74 is provided between the connecting rod 73 and the operating table 3. A rotation groove 75 is provided on one side of the outer surface of the connecting rod 73. A pushing mechanism 76 used in conjunction with the ratchet device 72 is provided on the connecting rod 73; the pushing mechanism 76 includes a rotating shaft 761 rotatably connected to the rotation groove 75 and an elastic sheet 762 fixedly connected to the outer surface of the connecting rod 73. A push plate 763 used in conjunction with the ratchet teeth on the ratchet device 72 is fixedly connected to the rotating shaft 761. The elastic sheet 762 is attached to the push plate 763. By placing the aluminum profile frame on the supporting mechanism 6, the aluminum profile frame can be driven to rotate in a specific direction through the adjusting mechanism 7. The inspector can move the inspection equipment along the surface of the aluminum profile frame in the direction opposite to the rotation direction, so that the inspector can conduct a comprehensive inspection of the aluminum profile frame without walking back and forth, which is convenient to operate.

[0036] The support mechanism 6 includes a support arm 61 fixedly connected to the outer surface of the rotating table 4, and two support arms 61 are symmetrically arranged along the center of the rotating table 4. The top of the support arm 61 is flush with the top of the rotating table 4, and a through groove 62 is opened on one side of the support arm 61. One end of the L-shaped rod 9 passes through the through groove 62, and the through groove 62 is slidably connected to the L-shaped rod 9.

[0037] The positioning mechanism 74 includes a support block 741 fixedly connected to the outer surface of the connecting rod 73 and a groove 742 opened at the bottom of the operating table 3. The support block 741 is connected to a positioning block 744 through a reset mechanism 743. One side of the top of the positioning block 744 is set to be an inclined surface, and one side of the top of the groove 742 is set to be an inclined surface. By setting the positioning mechanism 74 and positioning the connecting rod 73, the rotating table 4 can be rotated in one direction, which is convenient for inspectors to inspect the aluminum profile frame.

[0038] The reset mechanism 743 includes a movable groove 7431 opened at the bottom of the support block 741, the movable groove 7431 is slidably connected to the positioning block 744, a spring 7432 is fixedly connected in the movable groove 7431, and the spring 7432 is fixedly connected to the positioning block 744. Through the coordinated use of the movable groove 7431, the spring 7432, the positioning block 744, the support block 741 and the groove 742, when the connecting rod 73 moves in one direction, the positioning block 744 and the groove 742 are used in coordination, so that the positioning block 744 descends, and the positioning block 744 can be moved out of the groove 742, so that the connecting rod 73 can move freely; when the connecting rod 73 moves in another direction, the positioning block 744 will be stuck in the groove 742, causing the connecting rod 73 to be unable to move.

[0039] The bottom of the rotating table 4 is provided with a roller 10 . A plurality of the rollers 10 are arranged in a ring-shaped distribution along the bottom of the rotating table 4 . The rollers 10 are attached to the operating table 3 .

[0040] The present invention also discloses a testing method for an aluminum profile frame curvature testing device, which specifically comprises the following steps:

[0041] S1. First, place the aluminum profile frame to be inspected on the support arm 61. Then, by rotating the first handle 53, under the action of the limit mechanism 52, the first screw rod 51 drives the two clamping plates 8 to move relative to each other. Then, the second handle 58 is rotated to drive the two L-shaped rods 9 to move relative to each other, thereby driving the first baffle plate 56 and the second baffle plate 57 on the L-shaped rod 9 to move. The aluminum profile frame to be inspected is slightly clamped by the clamping plates 8, the first baffle plate 56 and the second baffle plate 57.

[0042] S2. Then, the height of the operating table 3 is adjusted to a suitable height by using the air cylinder 2. After that, the detection equipment is placed on the frame of the aluminum profile to be detected for detection. After one part of the frame of the aluminum profile to be detected is detected, the connecting rod 73 is pushed, and the push plate 763 is stuck in the teeth gap of the ratchet device 72, so that the connecting rod 73 is pushed to drive the ratchet device 72 to rotate, and then the support arm 61 is driven to rotate through the support shaft 71 and the rotating table 4, thereby driving the frame of the aluminum profile to be detected to rotate, so as to achieve the side change of the frame of the aluminum profile to be detected;

[0043] S3. Finally, the connecting rod 73 is reset. During the resetting process, the positioning block 744, the reset mechanism 743 and the groove 742 cooperate to position the connecting rod 73. Under the action of the elastic sheet 762, the push plate 763 is always stuck in the tooth gap of the ratchet device 72. After that, the aluminum profile frame to be inspected after the side change is inspected. Similarly, the side change steps in the above S2 are repeated until the aluminum profile frame to be inspected is fully inspected. Embodiment 2:

[0044] Based on Example 1, see Figure 1-4 shown.

[0045] The clamping mechanism 5 includes a first screw rod 51 rotatably connected to the rotating table 4, a clamping member 1 is threadedly connected to the first screw rod 51, a limiting mechanism 52 is arranged between the clamping member 1 and the rotating table 4, a first handle 53 is fixedly connected to one end of the first screw rod 51, a connecting block 54 is fixedly connected to the clamping member 1, the connecting block 54 is fixedly connected to the clamping plate 8 on the left side, a second screw rod 55 is rotatably connected to the connecting block 54, a clamping member 2 is threadedly connected to the second screw rod 55, a first baffle plate 56 and a second baffle plate 57 are respectively fixedly connected to the clamping member 2, and a second handle 58 is fixedly connected to one end of the second screw rod 55. By setting the clamping mechanism 5, during detection, the clamping mechanism 5 is used to clamp and fix the aluminum profile frame to prevent the aluminum profile frame from shifting during rotation and affecting the detection effect.

[0046] The clamping member 1 is composed of two clamping plates 8 symmetrically arranged along the center of the rotating table 4, and the clamping member 2 is composed of two L-shaped rods 9 symmetrically arranged along the center of the connecting block 54. The first screw rod 51 and the second screw rod 55 are both bidirectional screw rods, and the L-shaped rod 9 is slidably connected to the clamping plates 8.

[0047] The limiting mechanism 52 includes a connecting arm 521 fixedly connected to the outer surface of the rotating table 4, and two connecting arms 521 are symmetrically arranged along the center of the rotating table 4. The bottom of the connecting arm 521 is flush with the bottom of the rotating table 4, and the top of the connecting arm 521 is provided with a T-slot 522. A T-block 523 is slidably connected in the T-slot 522. The T-block 523 is fixedly connected to the splint 8, and one side of the T-slot 522 is open. By setting the limiting mechanism 52, the splint 8 can be limited, which is conducive to the stable movement of the splint 8.

[0048] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0049] 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 device for testing the curvature of an aluminum profile frame, comprising a support platform (1), characterized in that: The top of the support platform (1) is fixedly connected to an operating platform (3) via a cylinder (2); a rotating platform (4) is arranged on the operating platform (3); a clamping mechanism (5) for fixing the aluminum profile frame and a supporting mechanism (6) for placing the aluminum profile frame are arranged on the outer surface of the rotating platform (4); an adjusting mechanism (7) for rotating the aluminum profile frame so that the detection device can move above the aluminum profile frame for detection is arranged at the bottom of the rotating platform (4); The adjusting mechanism (7) comprises a supporting shaft (71) fixedly connected to the bottom of the rotating platform (4), the supporting shaft (71) being rotatably connected to the operating platform (3), a ratchet device (72) being fixedly connected to the bottom end of the supporting shaft (71), a connecting rod (73) being rotatably connected to the outside of the supporting shaft (71), a positioning mechanism (74) being arranged between the connecting rod (73) and the operating platform (3), a rotating groove (75) being arranged on one side of the outer surface of the connecting rod (73), and a pushing mechanism (76) being arranged on the connecting rod (73) for use in conjunction with the ratchet device (72); The pushing mechanism (76) comprises a rotating shaft (761) rotatably connected to the rotating groove (75) and an elastic sheet (762) fixedly connected to the outer surface of the connecting rod (73); a push plate (763) for use in conjunction with ratchet teeth on the ratchet device (72) is fixedly connected to the rotating shaft (761); and the elastic sheet (762) is attached to the push plate (763); The positioning mechanism (74) comprises a support block (741) fixedly connected to the outer surface of the connecting rod (73) and a groove (742) provided at the bottom of the operating table (3); the support block (741) is connected to a positioning block (744) via a reset mechanism (743); one side of the top of the positioning block (744) is provided with an inclined surface, and one side of the top of the groove cavity of the groove (742) is provided with an inclined surface; The reset mechanism (743) comprises a movable groove (7431) provided at the bottom of the support block (741); the movable groove (7431) is slidably connected to the positioning block (744); a spring (7432) is fixedly connected in the movable groove (7431); and the spring (7432) is fixedly connected to the positioning block (744).

2. The device for testing the curvature of an aluminum profile frame according to claim 1, characterized in that: The clamping mechanism (5) comprises a first screw rod (51) rotatably connected to the rotating table (4); a clamping member 1 is threadedly connected to the first screw rod (51); a limiting mechanism (52) is arranged between the clamping member 1 and the rotating table (4); a first handle (53) is fixedly connected to one end of the first screw rod (51); a connecting block (54) is fixedly connected to the clamping member 1; a second screw rod (55) is rotatably connected to the connecting block (54); a clamping member 2 is threadedly connected to the second screw rod (55); a first baffle plate (56) and a second baffle plate (57) are respectively fixedly connected to the clamping member 2; and a second handle (58) is fixedly connected to one end of the second screw rod (55).

3. The device for testing the curvature of an aluminum profile frame according to claim 2, characterized in that: The first clamping member is composed of two clamping plates (8) arranged symmetrically along the center of the rotating table (4), and the second clamping member is composed of two L-shaped rods (9) arranged symmetrically along the center of the connecting block (54). The first screw rod (51) and the second screw rod (55) are both bidirectional screw rods, and the L-shaped rod (9) is slidably connected to the clamping plates (8).

4. The device for testing the curvature of an aluminum profile frame according to claim 3, characterized in that: The limiting mechanism (52) comprises a connecting arm (521) fixedly connected to the outer surface of the rotating table (4), two connecting arms (521) are symmetrically arranged along the center of the rotating table (4), the bottom of the connecting arm (521) is flush with the bottom of the rotating table (4), the top of the connecting arm (521) is provided with a T-shaped slot (522), a T-shaped block (523) is slidably connected in the T-shaped slot (522), the T-shaped block (523) is fixedly connected to the clamping plate (8), and one side of the slot cavity of the T-shaped slot (522) is arranged to be open.

5. The device for testing the curvature of an aluminum profile frame according to claim 4, characterized in that: The support mechanism (6) comprises a support arm (61) fixedly connected to the outer surface of the rotating platform (4), two support arms (61) are symmetrically arranged along the center of the rotating platform (4), the top of the support arm (61) is flush with the top of the rotating platform (4), a through slot (62) is formed through one side of the support arm (61), one end of the L-shaped rod (9) passes through the through slot (62), and the through slot (62) is slidably connected to the L-shaped rod (9).

6. The device for testing the curvature of an aluminum profile frame according to claim 5, characterized in that: A roller (10) is arranged at the bottom of the rotating table (4), and a plurality of the rollers (10) are arranged in a ring-shaped distribution along the bottom of the rotating table (4), and the rollers (10) are attached to the operating table (3).

7. A method for testing an aluminum profile frame curvature test device, using the aluminum profile frame curvature test device as claimed in claim 6, characterized in that: The specific steps include: S1. First, place the aluminum profile frame to be inspected on the support arm (61). Then, by rotating the first handle (53), under the action of the limit mechanism (52), the first screw rod (51) drives the two clamping plates (8) to move relative to each other. Then, the second handle (58) is rotated to drive the two L-shaped rods (9) to move relative to each other, thereby driving the first baffle plate (56) and the second baffle plate (57) on the L-shaped rod (9) to move. The aluminum profile frame to be inspected is lightly clamped by the clamping plates (8), the first baffle plate (56) and the second baffle plate (57). S2. Then, the height of the operating table (3) is adjusted to a suitable height by using the air cylinder (2). After that, the detection device is placed on the frame of the aluminum profile to be detected for detection. After a portion of the frame of the aluminum profile to be detected is detected, the connecting rod (73) is pushed, and the push plate (763) is stuck in the teeth gap of the ratchet device (72). Thus, the connecting rod (73) is pushed to drive the ratchet device (72) to rotate, and then the support arm (61) is driven to rotate through the support shaft (71) and the rotating table (4), thereby driving the frame of the aluminum profile to be detected to rotate, thereby changing the side of the frame of the aluminum profile to be detected; S3. Finally, the connecting rod (73) is reset. During the reset process, the positioning block (744), the reset mechanism (743) and the groove (742) cooperate to position the connecting rod (73). Under the action of the elastic sheet (762), the push plate (763) is always stuck in the tooth gap of the ratchet device (72). After that, the aluminum profile frame to be inspected after the side change is inspected. Similarly, the side change step in S2 is repeated until the aluminum profile frame to be inspected is fully inspected.

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