CN218937282U - Device for detecting bending angle of aluminum profile - Google Patents

Abstract

The utility model discloses a device for detecting bending angles of aluminum profiles, which relates to the technical field of aluminum profile bending angle detection and comprises a bottom plate, a height adjusting unit, an angle detecting unit, an aluminum profile fixing unit and a moving assembly; the height adjusting unit comprises a fixed plate, first slide columns, screw rods, bearings and a sliding plate, one end of the upper surface of the bottom plate is fixedly connected with the lower ends of the first slide columns which are correspondingly matched, the upper ends of the first slide columns are respectively fixedly connected with the two ends of the lower surface of the fixed plate, and the side surfaces of the middle parts of the first slide columns are respectively and vertically connected with the sliding plate in a sliding mode. The bending angle of large-size aluminum profile can be accurately measured, the measuring error is small, the detection is simple and convenient, more time can be saved, the aluminum profile can be effectively pressed and fixed, and the inaccuracy of the detection result caused by the displacement of the aluminum profile during the measurement is avoided.

Description

Device for detecting bending angle of aluminum profile

Technical Field

The utility model relates to the technical field of aluminum profile bending angle detection, in particular to a device for detecting an aluminum profile bending angle.

Background

Aluminum profiles are manufactured from aluminum and other manufactured products, typically by first processing into castings, forgings, foils, plates, strips, tubes, rods, profiles, etc., and then cold bending, sawing, drilling, assembling, coloring, etc. The main metal element is aluminum, and the alloy elements are added, so that the performance of the aluminum material is improved, the aluminum profile is widely applied due to the excellent physical and chemical properties, along with the popularization and use of the aluminum profile, the aluminum profile is widely applied to various industries, and in the production process, an aluminum ingot is required to be extruded into the aluminum profile, so that the formed aluminum profile generally exists in a straight line form;

in the deep processing process of the aluminum profile, the linear aluminum profile is often required to be bent, whether the bending angle meets the bending precision requirement or not is difficult to ensure, and therefore the bending degree of the aluminum profile is required to be detected after the bending process;

the existing aluminum profile bending angle detection device cannot accurately measure the bending angle of a large-size aluminum profile due to the limitation of the size of a measuring tool and the lack of a corresponding fixing device, has large measuring error, is complicated in detection, wastes more time, and therefore, the device for detecting the bending angle of the aluminum profile is provided.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the existing defects, and provide the device for detecting the bending angle of the aluminum profile, which can accurately measure the bending angle of the large-size aluminum profile, has small measurement error, is simpler and more convenient to detect, can save more time, can effectively compress and fix the aluminum profile, can avoid inaccurate detection results caused by displacement of the aluminum profile during measurement, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the device for detecting the bending angle of the aluminum profile comprises a bottom plate, a height adjusting unit, an angle detecting unit, an aluminum profile fixing unit and a moving assembly;

height adjusting unit: the sliding plate comprises a fixed plate, sliding columns I, a screw rod, a bearing and a sliding plate, wherein one end of the upper surface of a bottom plate is fixedly connected with the lower ends of the two sliding columns I which are correspondingly matched, the upper ends of the two sliding columns I are respectively fixedly connected with the two ends of the lower surface of the fixed plate, the side surfaces of the middle parts of the two sliding columns I are respectively vertically and slidably connected with the sliding plate, the middle part of the fixed plate is provided with a threaded hole and is in threaded connection with the screw rod, and the side surfaces of the lower ends of the screw rod are rotationally connected with the sliding plate through the bearing;

an angle detection unit: the sliding plate is arranged on one side of the sliding plate and is positioned above the bottom plate;

aluminum profile fixing unit: is arranged on one side of the bottom plate opposite to the sliding plate;

and (3) a moving assembly: is arranged below the bottom plate.

The bottom plate plays the fixed effect of support, when needs are heightened, rotate the screw rod for the screw rod upward movement, the screw rod drives the bearing upward movement, and the bearing drives the sliding plate and upwards vertically slides along the traveller, thereby makes the height by heightening, and the fixed plate is used for supporting the screw rod, and angle detection unit makes can detect aluminium alloy angle of bending, and aluminium alloy fixed unit makes can carry out effectual fixedly to aluminium alloy, avoids aluminium alloy to take place the displacement when measuring, and the moving component makes can laborsaving remove it.

Further, the height adjusting unit further comprises a rotary table, and the upper end of the screw rod is fixedly connected with the center of the lower surface of the rotary table. The rotating turntable drives the screw to rotate, and the rotating radius of the screw is increased by the turntable, so that the screw is easier to rotate.

Further, the height adjusting unit further comprises anti-skid grooves, and a plurality of anti-skid grooves are uniformly formed in the side face of the periphery of the rotating disc at equal angles. The anti-slip groove can prevent the hand from slipping when rotating the turntable.

Further, the angle detection unit comprises a supporting plate, a movable measuring plate, a supporting lug, a first rotating shaft and a semicircular protractor, wherein the middle part of one side surface of one end of the sliding plate is fixedly connected with one side surface of the supporting plate, the two ends of the upper surface of the supporting plate are respectively fixedly connected with the lower ends of the two corresponding supporting lugs, the middle parts of the side surfaces of the two supporting lugs are movably connected with the side surface of the lower end of the movable measuring plate through the first rotating shaft, and the semicircular protractor is fixedly connected with one of the supporting lugs. The sliding plate drives the backup pad upward movement, and the backup pad drives the supporting lug upward movement, and the supporting lug drives the sliding plate upward movement, and the sliding plate drives movable measurement board upward movement to make movable measurement board remove suitable height, rotate movable measurement board, make movable measurement board rotate the position of laminating with aluminium alloy inclined plane, observe the numerical value of semi-circular protractor, thereby carry out the measurement of angle.

Further, the angle detection unit further comprises a pointer, and the middle part of one side surface of the movable measuring plate is fixedly connected with the pointer which is correspondingly matched with the semicircular protractor. The pointer may make reading easier.

Further, the angle detection unit further comprises a holding ball and a support column, wherein the middle part of the upper surface of the movable measurement plate is fixedly connected with the lower end of the support column, and the upper end of the support column is fixedly connected with the middle part of the lower end of the holding ball. The holding ball is held to rotate to drive the support column to rotate, the support column drives the movable measuring plate to rotate around the first rotating shaft, and the holding ball and the support column enable the movable measuring plate to rotate more conveniently.

Further, aluminium alloy fixed unit contains vertical support plate, horizontal backup pad, connecting plate, post two, spring and fastening plate, the both ends of the other end upper surface of bottom plate respectively with the lower extreme fixed connection of two corresponding complex vertical support plates, the upper end of two vertical support plates respectively with the both ends side fixed connection of horizontal backup pad, the upper surface both ends of horizontal backup pad respectively with the vertical sliding connection of the middle part side of two corresponding complex post two, the upper end of two post two respectively with the lower surface both ends fixed connection of connecting plate, the lower extreme of two post two respectively with the upper surface both ends fixed connection of fastening plate, the part that two post two are in between horizontal backup pad and the fastening plate has movably sleeved the spring respectively. The connecting plate is pulled upwards to drive the sliding column to slide upwards, the sliding column II drives the fastening plate to move upwards, so that the fastening plate compresses the spring, the aluminum profile is placed below the fastening plate, the connecting plate is loosened, the fastening plate moves downwards under the action of the spring, the aluminum profile is pressed and fixed, the vertical supporting plate is used for supporting the transverse supporting plate, and the transverse supporting plate is used for supporting the sliding column II.

Further, the aluminum profile fixing unit further comprises a cushion block, and the lower surface of the fastening plate is fixedly connected with the upper surface of the cushion block. The cushion block can prevent the fastening plate from damaging the aluminum profile by compression.

Furthermore, the aluminum profile fixing unit further comprises anti-slip strips, and the anti-slip strips are uniformly arranged on the lower surface of the cushion block at equal intervals. The friction force between the cushion block and the aluminum profile can be increased by the anti-slip strip, and the aluminum profile is prevented from being displaced.

Further, the moving assembly comprises a second rotating shaft, a roller support frame and rollers, four corners of the lower surface of the bottom plate are fixedly connected with the upper ends of the four roller support frames which are correspondingly matched, and the side surfaces of the lower ends of the roller support frames are movably connected with the center positions of the side surfaces of the rollers through the second rotating shaft. When the roller is required to move, the bottom plate is pushed to drive the roller support frame to move, the roller support frame drives the second rotating shaft to move, and the roller rotates around the second rotating shaft due to friction force between the roller and the ground, so that the roller moves.

Compared with the prior art, the utility model has the beneficial effects that: this detect device of aluminium alloy angle of bending has following benefit:

1. this detect high adjusting unit that device of angle of bending of aluminium alloy set up makes the drive angle detecting element that can be convenient go up and down, and the carousel that wherein has increased the turning radius of screw rod for it is lighter when rotating, and the antiskid groove can prevent to rotate the carousel time smooth, thereby can be more swiftly and accurately realize the detection to aluminium alloy angle, and then improve the quality of aluminium alloy.

2. The angle detection unit that this device that detects aluminium alloy angle of bending set up makes the angle of bending that can accurate measurement jumbo size aluminium alloy, and measuring error is little, and the pointer that wherein can make during the reading easier, grips ball and support column and makes the rotation activity measuring plate that can be more convenient.

3. This detect aluminium alloy fixed unit that device of aluminium alloy angle of bending set up makes can carry out effectual fixed to the aluminium alloy, avoids aluminium alloy to take place the displacement when measuring, and wherein the cushion can prevent that the fastening plate from damaging aluminium alloy pressure, and the removal subassembly makes can laborsaving remove it.

4. This detect device of aluminium alloy angle of bending detects comparatively portably, can save more time, can also carry out effectual compressing tightly fixedly to the aluminium alloy, avoids the aluminium alloy to take place the displacement when measuring and causes the testing result inaccurate.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a right side structure schematic diagram of the present utility model.

FIG. 3 is a schematic view of the lower end structure of the present utility model.

In the figure: 1 a bottom plate, 2 a height adjusting unit, 21 a turntable, 22 an anti-slip groove, 23 a fixed plate, 24 a first slide column, 25 a screw, 26 a bearing, 27 a slide plate, 3 an angle detecting unit, 31 a holding ball, 32 a supporting column, 33 a supporting plate, 34 a movable measuring plate, 35 a pointer, 36 a supporting lug, 37 a first rotating shaft, 38 a semicircular protractor, 4 an aluminum profile fixed unit, 41 a vertical supporting plate, 42 a transverse supporting plate, 43 a connecting plate, 44 a second slide column, 45 a spring, 46 a fastening plate, 47 a cushion block, 48 an anti-slip strip, 5 a moving assembly, 51 a second rotating shaft, 52 a roller supporting frame and 53 a roller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present embodiment provides a technical solution: the device for detecting the bending angle of the aluminum profile comprises a bottom plate 1, a height adjusting unit 2, an angle detecting unit 3, an aluminum profile fixing unit 4 and a moving assembly 5;

the base plate 1: for example a rectangular plate;

height adjusting unit 2: the sliding plate comprises a fixed plate 23, sliding columns one 24, a screw rod 25, a bearing 26 and a sliding plate 27, wherein one end of the upper surface of one end of a bottom plate 1 is fixedly connected with the side surfaces of the lower ends of the two sliding columns one 24 which are correspondingly matched, the upper end parts of the two sliding columns one 24 are respectively fixedly connected with the middle parts of the two ends of the lower surface of the fixed plate 23, the side surfaces of the middle parts of the two sliding columns one 24 are respectively vertically and slidably connected with the middle parts of the two ends of the upper surface of the sliding plate 27, the middle part of the upper surface of the fixed plate 23 is provided with a threaded hole and is in threaded connection with the side surfaces of the middle part of the screw rod 25, and the side surfaces of the lower ends of the screw rod 25 are rotationally connected with the middle part of the upper surface of the sliding plate 27 through the bearing 26;

the height adjusting unit 2 further comprises a turntable 21, and the upper end of a screw 25 is fixedly connected with the center of the lower surface of the turntable 21. Rotating the turntable 21 drives the screw 25 to rotate, and the turntable 21 increases the rotation radius of the screw 25, so that the screw can be rotated more easily.

The height adjusting unit 2 further comprises an anti-skid groove 22, and a plurality of (e.g. five) anti-skid grooves 22 are uniformly formed in the circumferential side surface of the turntable 21 at equal angles. The anti-slip groove 22 prevents the hand from slipping when the turntable 21 is rotated.

Angle detection unit 3: is arranged in the middle of one end side surface of the sliding plate 27 and is positioned above the bottom plate 1;

the angle detecting unit 3 comprises a supporting plate 33 (for example, a rectangular plate), a movable measuring plate 34, supporting lugs 36, a first rotating shaft 37 and a semicircular protractor 38, wherein the middle part of one end side surface of the sliding plate 27 is fixedly connected with one end side surface of the supporting plate 33 (the sliding plate 27 and the supporting plate 33 can be integrally formed), two ends of the upper surface of the supporting plate 33 are respectively and fixedly connected with the lower ends of the two supporting lugs 36 which are correspondingly matched, the middle parts of the side surfaces of the two supporting lugs 36 are movably connected with the side surfaces of the lower ends of the movable measuring plate 34 through the first rotating shaft 37, one supporting lug 36 is fixedly connected with the semicircular protractor 38, for example, the middle part of the upper surface of the supporting lug 36 is fixedly connected with the middle part of the lower end of the semicircular protractor 38 is positioned on the side surface of the supporting lug 36; of course, no matter what fixed position, the center of the semicircular protractor 38 is located at the first 37 positions of the rotating shaft, and for this purpose, the semicircular protractor 38 may be specifically designed according to the situation, and not be a common structure with the center located within the outline of the semicircular protractor 38. The sliding plate 27 drives the supporting plate 33 to move upwards, the supporting plate 33 drives the supporting lug 36 to move upwards, the supporting lug 36 drives the sliding plate 27 to move upwards, the sliding plate 27 drives the movable measuring plate 34 to move upwards, accordingly, the movable measuring plate 34 is enabled to move to a proper height, the movable measuring plate 34 is rotated, the movable measuring plate 34 is enabled to rotate to a position attached to an inclined surface at one tilting end of the aluminum profile, the numerical value of the semicircular protractor 38 is observed, and therefore angle measurement is conducted.

The angle detection unit 3 further comprises a pointer 35, and the middle part of one side surface of one end of the movable measuring plate 34 is fixedly connected with the pointer 35 correspondingly matched with the semicircular protractor 38. The pointer 35 may make reading easier.

The angle detecting unit 3 further comprises a holding ball 31 and a supporting column 32, wherein the middle part of the upper surface of the movable measuring plate 34 is fixedly connected with the lower end of the supporting column 32, and the upper end of the supporting column 32 is fixedly connected with the middle part of the lower end of the holding ball 31. The holding ball 31 is held to rotate to drive the support column 32 to rotate, the support column 32 drives the movable measuring plate 34 to rotate around the first rotating shaft 37, and the holding ball 31 and the support column 32 enable the movable measuring plate 34 to rotate more conveniently.

Aluminum profile fixing unit 4: two ends mounted on the upper surface of the other end (the end opposite to the slide plate 27) of the base plate 1;

the aluminum profile fixing unit 4 comprises a vertical supporting plate 41, a transverse supporting plate 42, a connecting plate 43, two sliding columns 44, a spring 45 and a fastening plate 46 (for example, a rectangular plate), wherein two ends of the upper surface of the other end of the bottom plate 1 are respectively and fixedly connected with the lower ends of the two corresponding matched vertical supporting plates 41, the upper ends of the two vertical supporting plates 41 are respectively and fixedly connected with the side surfaces of the two ends of the transverse supporting plate 42, the two ends of the upper surface of the transverse supporting plate 42 are respectively and vertically and slidably connected with the side surfaces of the middle part of the two corresponding matched sliding columns 44, the upper ends of the two sliding columns 44 are respectively and fixedly connected with the two ends of the lower surface of the connecting plate 43, the lower ends of the two sliding columns 44 are respectively and fixedly connected with the two ends of the upper surface of the fastening plate 46, and the parts of the two sliding columns 44 between the transverse supporting plate 42 and the fastening plate 46 are respectively and movably sleeved with the spring 45. The connecting plate 43 is pulled upwards to drive the sliding column II 44 to slide upwards, the sliding column II 44 drives the fastening plate 46 to move upwards, so that the fastening plate 46 compresses the spring 45, one end of the aluminum profile is placed below the fastening plate 46, the connecting plate 43 is loosened, the fastening plate 46 moves downwards under the action of the spring 45, one end of the aluminum profile is pressed and fixed, the other end of the aluminum profile is tilted, the vertical supporting plate 41 is used for supporting the transverse supporting plate 42, and the transverse supporting plate 42 is used for supporting the sliding column II 44.

The aluminum profile fixing unit 4 further comprises a cushion block 47 (for example, a rectangular block), and the lower surface of the fastening plate 46 is fixedly connected with the upper surface of the cushion block 47. The cushion block 47 can prevent the fastening plate 46 from crushing the aluminum profile.

The aluminum profile fixing unit 4 further comprises an anti-slip strip 48, and the anti-slip strips 48 are uniformly arranged on the lower surface of the cushion block 47 at equal intervals. The anti-slip strips 48 can increase the friction between the cushion blocks 47 and the aluminum profile and avoid the displacement of the aluminum profile.

Moving assembly 5: mounted below the base plate 1, for example, at four corners of the lower surface.

The moving assembly 5 comprises a second rotating shaft 51, a roller support frame 52 and rollers 53, wherein four corners of the lower surface of the bottom plate 1 are respectively and fixedly connected with the upper ends of the four roller support frames 52 which are correspondingly matched, and the side surfaces of the lower ends of the roller support frames 52 are movably connected with the side surface center positions of the rollers 53 through the second rotating shaft 51. When the floor plate 1 is required to move, the roller support frame 52 is driven to move by pushing the floor plate 1, the second rotating shaft 51 is driven by the roller support frame 52 to move, and the roller 53 rotates around the second rotating shaft 51 due to friction between the roller 53 and the ground, so that the floor plate moves.

The bottom plate 1 plays the fixed effect of support, when needs are heightened with the height, rotate screw rod 25 for screw rod 25 upwards moves, and screw rod 25 drives bearing 26 upwards and removes, and bearing 26 drives slide plate 27 and upwards vertically slides along a traveller 24, thereby makes the height by heightening, and fixed plate 23 is used for supporting screw rod 25, and angle detection unit 3 makes can detect aluminium alloy angle of bending, and aluminium alloy fixed unit 4 makes can carry out effectual fixedly to the aluminium alloy, avoids aluminium alloy to take place the displacement when the measurement, and moving assembly 5 makes can laborsaving remove it.

The working principle of the device for detecting the bending angle of the aluminum profile provided by the utility model is as follows:

the connecting plate 43 is pulled upwards to drive the sliding column II 44 to slide upwards, the sliding column II 44 drives the fastening plate 46 to move upwards, thereby the fastening plate 46 compresses the spring 45, one end of the aluminum profile is placed below the fastening plate 46, the connecting plate 43 is loosened, the fastening plate 46 moves downwards under the action of the spring 45, thereby the aluminum profile is pressed and fixed, the other end of the aluminum profile is tilted, when the height of the angle detection unit 3 needs to be adjusted upwards, the screw 25 is rotated, the screw 25 moves upwards, the screw 25 drives the bearing 26 to move upwards, the bearing 26 drives the sliding plate 27 to slide upwards along the sliding column I24, the sliding plate 27 drives the supporting plate 33 to move upwards, the supporting lug 36 drives the sliding plate 27 to move upwards, the sliding plate 27 drives the movable measuring plate 34 to move upwards, thereby the movable measuring plate 34 moves to a proper height, the holding ball 31 is held to rotate, the supporting column 32 drives the movable measuring plate 34 to rotate around the rotating shaft I37, the movable measuring plate 34 rotates to be attached to the inclined plane of the tilted end of the aluminum profile, the aluminum profile is observed, the dimensional measurement of the aluminum profile is accurately measured, and the aluminum profile is not bent, and the quality of the angle is accurately measured in the manufacturing process is guaranteed. When the device needs to be moved, the bottom plate 1 is pushed to drive the roller support frame 52 to move, the roller support frame 52 drives the second rotating shaft 51 to move, and the roller 53 rotates around the second rotating shaft 51 due to friction between the roller 53 and the ground, so that the device moves.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. Detect aluminium alloy angle of bending's device, its characterized in that: comprises a bottom plate (1), a height adjusting unit (2), an angle detecting unit (3), an aluminum profile fixing unit (4) and a moving assembly (5);

height adjusting unit (2): the sliding plate comprises a fixed plate (23), sliding columns I (24), a screw rod (25), a bearing (26) and a sliding plate (27), wherein one end of the upper surface of a bottom plate (1) is fixedly connected with the lower ends of the two sliding columns I (24) which are correspondingly matched, the upper ends of the two sliding columns I (24) are respectively fixedly connected with the two ends of the lower surface of the fixed plate (23), the middle side surfaces of the two sliding columns I (24) are respectively and vertically connected with the sliding plate (27) in a sliding manner, the middle part of the fixed plate (23) is provided with a threaded hole and is in threaded connection with the screw rod (25), and the lower end of the screw rod (25) is rotationally connected with the sliding plate (27) through the bearing (26);

angle detection means (3): is arranged on one side of the sliding plate (27) and is positioned above the bottom plate (1);

aluminum profile fixing unit (4): is arranged on the side of the bottom plate (1) opposite to the sliding plate (27);

moving assembly (5): is arranged below the bottom plate (1).

2. The device for detecting bending angles of aluminum profiles according to claim 1, wherein: the height adjusting unit (2) further comprises a rotary table (21), and the upper end of the screw rod (25) is fixedly connected with the center of the lower surface of the rotary table (21).

3. The device for detecting bending angles of aluminum profiles according to claim 2, wherein: the height adjusting unit (2) further comprises anti-skid grooves (22), and a plurality of anti-skid grooves (22) are formed in the peripheral side face of the rotary table (21).

4. A device for detecting bending angles of aluminum profiles according to claim 3, characterized in that: the angle detection unit (3) comprises a supporting plate (33), a movable measuring plate (34), supporting lugs (36), a first rotating shaft (37) and a semicircular protractor (38), wherein the sliding plate (27) is fixedly connected with one end side face of the supporting plate (33), two ends of the upper surface of the supporting plate (33) are respectively fixedly connected with the lower ends of the two corresponding supporting lugs (36), the side faces of the two supporting lugs (36) are movably connected with the lower end side face of the movable measuring plate (34) through the first rotating shaft (37), and the semicircular protractor (38) is fixedly connected to one supporting lug (36).

5. The device for detecting bending angles of aluminum profiles according to claim 4, wherein: the angle detection unit (3) further comprises a pointer (35), and the side face of the movable measuring plate (34) is fixedly connected with the pointer (35) which is correspondingly matched with the semicircular protractor (38).

6. The device for detecting bending angles of aluminum profiles according to claim 5, wherein: the angle detection unit (3) further comprises a holding ball (31) and a support column (32), the middle part of the upper surface of the movable measurement plate (34) is fixedly connected with the lower end of the support column (32), and the upper end of the support column (32) is fixedly connected with the holding ball (31).

7. The device for detecting bending angles of aluminum profiles according to claim 1, wherein: the aluminum profile fixing unit (4) comprises a vertical supporting plate (41), a transverse supporting plate (42), a connecting plate (43), sliding columns II (44), springs (45) and fastening plates (46), wherein the upper surface of the bottom plate (1) is fixedly connected with the lower ends of the two corresponding vertical supporting plates (41) on two sides respectively, the upper ends of the two vertical supporting plates (41) are fixedly connected with the two ends of the transverse supporting plate (42) respectively, the two ends of the upper surface of the transverse supporting plate (42) are vertically and slidably connected with the side surfaces of two corresponding sliding columns II (44) respectively, the upper ends of the two sliding columns II (44) are fixedly connected with the two ends of the lower surface of the connecting plate (43) respectively, the lower ends of the two sliding columns II (44) are fixedly connected with the two ends of the upper surface of the fastening plates (46) respectively, and the parts, between the transverse supporting plate (42) and the fastening plates (46), of the two sliding columns II (44) are movably sleeved with the springs (45) respectively.

8. The device for detecting bending angles of aluminum profiles according to claim 7, wherein: the aluminum profile fixing unit (4) further comprises a cushion block (47), and the lower surface of the fastening plate (46) is fixedly connected with the upper surface of the cushion block (47).

9. The device for detecting bending angles of aluminum profiles according to claim 8, wherein: the aluminum profile fixing unit (4) further comprises anti-slip strips (48), and the anti-slip strips (48) are uniformly arranged on the lower surface of the cushion block (47) at equal intervals.

10. The device for detecting bending angles of aluminum profiles according to claim 1, wherein: the movable assembly (5) comprises a rotating shaft II (51), a roller support frame (52) and rollers (53), four corners of the lower surface of the bottom plate (1) are fixedly connected with the upper ends of the four corresponding matched roller support frames (52) respectively, and the side surfaces of the lower ends of the roller support frames (52) are movably connected with the side surface center positions of the rollers (53) through the rotating shaft II (51).

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