Metal profile surface detection equipment

Abstract

The invention provides metal profile surface detection equipment, and relates to the technical field of detection equipment, the metal profile surface detection equipment comprises a base, side frames are fixedly mounted at the two ends of the base, lifting blocks are slidably mounted on the side frames, and a guide rod is fixedly connected between the two lifting blocks; and a driving threaded rod parallel to the guide rod is rotationally mounted between the two lifting blocks. According to the metal profile surface detection equipment provided by the invention, through the arrangement of the base, the side frame, the lifting block, the guide rod, the driving threaded rod, the working block, the test needle, the displacement measuring mechanism, the leveling mechanism, the adjusting supporting plate and the clamp, a metal profile can be clamped and fixed, and then the detected surface of the metal profile is adjusted to be perpendicular to the test needle; then the working block is driven to reciprocate along the guide rod, the roughness of the surface of the metal profile is measured according to the motion trails of the test ends of the test needles, and meanwhile, at least two test needles cross the same position to mutually verify the test result, so that the test result is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a metal profile surface detection device. Background Art

[0002] Metal profiles are an important metal material. They are objects with certain geometric shapes, sizes, specific strength and toughness made by specific processing technology. In actual situations, it is necessary to test the surface roughness of metal profiles to ensure the performance of metal profile parts, product quality and reliability, reduce the difficulty of subsequent processing, plating quality, improve corrosion resistance, ensure sealing, etc. At present, the most commonly used stylus roughness meter clamps the metal profile to be tested with a clamp when testing the surface roughness of metal profiles. Then, the stylus of the roughness meter is perpendicular to the surface of the metal profile, and the metal stylus is passed through the surface of the metal profile to measure the surface roughness according to the changes in the passed curve. However, in actual situations, the vertical state of the metal profile to be tested and the stylus of the roughness meter is usually determined by visual inspection by the staff. The non-vertical state of the detection needle end and the surface of the metal profile may affect the accuracy and reliability of the measurement results. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a metal profile surface detection device.

[0004] The present invention provides a metal profile surface detection device, comprising a base, side frames are fixedly installed at both ends of the base, a lifting block is slidably installed on the side frame, a guide rod is fixedly connected between the two lifting blocks, a driving threaded rod arranged parallel to the guide rod is also rotatably installed between the two lifting blocks, a working block is slidably sleeved on the guide rod, the working block is threadedly sleeved on the driving threaded rod, a plurality of linearly arranged test needles are installed on the bottom surface of the working block, the plurality of test needles are arranged parallel to each other, a telescopic hole capable of accommodating the test needle is opened on the bottom surface of the working block, a displacement measuring mechanism is installed in the working block, and the displacement measuring mechanism is used to measure the displacement of the test needle in the telescopic hole; The bottom surface of the working block is also equipped with a leveling mechanism, which is used to adjust the test needle to be perpendicular to the surface of the metal profile; An adjusting support plate is rotatably mounted on the top surface of the base, and a clamp for clamping metal profiles is mounted on the adjusting support plate.

[0005] Preferably, the displacement measuring mechanism comprises a fixed panel, a movable panel, a transmission rod and an amplifying assembly; a measuring slot is provided in the working block, the fixed panel is fixedly mounted at the bottom of the measuring slot, the movable panel is slidably mounted in the measuring slot, and the fixed panel and the movable panel are arranged in parallel, and one end of the transmission rod is fixedly connected to the movable panel; The amplifying component is used to amplify the displacement of the test needle in the telescopic hole and convert it into the movement of the transmission rod.

[0006] Preferably, the amplification assembly includes a transmission lever and a No. 1 return spring; a movement cavity is provided in the working block, the transmission lever is rotatably installed in the movement cavity, and the transmission lever abuts against the end of the test needle and the end of the transmission rod respectively; The No. 1 return spring is installed in the motion cavity, and the two ends of the No. 1 return spring are respectively fixedly connected to the inner wall of the motion cavity and the transmission lever.

[0007] Preferably, the outer periphery of the transmission rod is circumferentially connected to a No. 1 boss, a No. 1 limiting slide groove slidably matched with the No. 1 boss is provided in the working block, a No. 2 return spring is provided in the No. 1 limiting slide groove, and two ends of the No. 2 return spring respectively abut against the end inner wall of the No. 1 limiting slide groove and the No. 1 boss; The outer periphery of the test needle is circumferentially connected with a No. 2 boss, and a No. 2 limiting groove slidably matched with the No. 2 boss is provided in the working block, and a No. 3 return spring is arranged in the No. 2 limiting groove, and the two ends of the No. 3 return spring respectively abut against the end inner wall of the No. 2 limiting groove and the No. 2 boss.

[0008] Preferably, the leveling mechanism comprises two electric telescopic rods, and the electric telescopic rods are arranged parallel to the test needle.

[0009] Preferably, a rotating bracket is fixedly installed on the top surface of the base, and the adjusting support plate is rotatably installed on the rotating bracket. A stable support structure is also installed on the base, and there are two stable support structures. The two stable support structures are respectively located on both sides of the rotating bracket, and the output end of the stable support structure rests on the bottom surface of the adjusting support plate.

[0010] Preferably, the stable support structure comprises a fixed cylinder, a support rod, a lifting spring and a locking assembly; the fixed cylinder is fixedly mounted on the top surface of the base, a receiving hole capable of receiving the support rod is provided on the top surface of the fixed cylinder, the support rod is slidably mounted in the receiving hole, two ends of the lifting spring are respectively against the bottom inner wall of the receiving hole and the bottom end of the support rod, and the top end of the lifting spring is always against the bottom surface of the adjustment support plate; The locking assembly is used to fix the position of the support rod in the receiving hole.

[0011] Preferably, the locking assembly comprises an electromagnet and a magnetic block; a locking hole is provided on the inner wall of the receiving hole, the electromagnet is fixedly installed in the locking hole, and the magnetic block is slidably installed in the locking hole.

[0012] The metal profile surface detection device proposed by the present invention has the following beneficial effects: through the arranged base, side frame, lifting block, guide rod, driving threaded rod, working block, test needle, displacement measuring mechanism, leveling mechanism, adjustment support plate and clamp, the metal profile can be clamped and fixed, and then the verticality between the tested surface of the metal profile and the test needle is adjusted, and then the working block is driven to reciprocate along the guide rod, and the roughness of the metal profile surface is measured according to the motion trajectory of the test end of the test needle. At the same time, at least two test needles pass through the same position to verify the test results with each other, and can verify each other, so that the detection results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a metal profile surface detection device proposed by the present invention; Figure 2 A side sectional view of a metal profile surface detection device proposed by the present invention; Figure 3 This is an end cross-sectional view of a working block in a metal profile surface detection device proposed by the present invention; Figure 4 A side sectional view of a working block in a metal profile surface detection device proposed by the present invention; Figure 5 This is a schematic diagram of the structure of components such as a working block and a test needle in a metal profile surface detection device proposed by the present invention; Figure 6 A metal profile surface detection device proposed by the present invention Figure 3 Enlarged view of point A in the middle; Figure 7 A metal profile surface detection device proposed by the present invention Figure 2 Enlarged view of point B in the middle; Figure 8 A schematic diagram of the position of a metal profile surface detection device proposed by the present invention when clamping a metal profile whose two side surfaces are not parallel; Fig. 9 The present invention is a schematic diagram of the position of a metal profile surface detection device when clamping a multi-plane metal profile.

[0014] In the figure: 1. Base; 2. Side frame; 3. Lifting block; 4. Guide rod; 5. Driving threaded rod; 6. Working block; 7. Test pin; 8. Adjustment support plate; 9. Fixed panel; 10. Movable panel; 11. Transmission rod; 12. Transmission lever; 13. No. 1 reset spring; 14. Movement cavity; 15. No. 2 reset spring; 16. No. 3 reset spring; 17. Electric telescopic rod; 18. Rotating bracket; 19. Fixed cylinder; 20. Support rod; 21. Lifting spring; 22. Electromagnet; 23. Magnetic block. DETAILED DESCRIPTION

[0015] Reference Figure 1-Figure 9 The present invention provides a metal profile surface detection device, including a base 1, side frames 2 are fixedly installed at both ends of the base 1, the side frames 2 are U-shaped frames, and the U-shaped openings of the side frames 2 are arranged upward, a lifting block 3 is slidably installed on the side frame 2, the lifting block 3 is slidably installed in the U-shaped opening of the side frame 2, the lifting block 3 is slidably installed in the U-shaped opening of the side frame 2 through an electric slide rail, a guide rod 4 is fixedly connected between the two lifting blocks 3, and a driving threaded rod 5 arranged parallel to the guide rod 4 is also rotatably installed between the two lifting blocks 3 The driving threaded rod 5 is driven by a motor, which is fixedly mounted on the lifting block 3. A working block 6 is slidably mounted on the guide rod 4. The working block 6 is threadedly mounted on the driving threaded rod 5. When the driving threaded rod 5 rotates, the working block 6 can be driven to slide back and forth on the guide rod 4, thereby ensuring that the working block 6 maintains a horizontal state of movement. A plurality of linearly arranged test needles 7 are installed on the bottom surface of the working block 6. The plurality of test needles 7 are arranged parallel to each other. The test needles 7 and the bottom surface of the working block 6 are arranged vertically. The bottom surface of the working block 6 is provided with a space for accommodating the test needles. The telescopic hole of the test needle 7, a displacement measuring mechanism is installed in the working block 6, and the displacement measuring mechanism is used to measure the displacement of the test needle 7 in the telescopic hole. In actual operation, the electric slide rail drives the end of the test needle 7 to rest against the surface of the metal profile to be tested, and the motor works to drive the threaded rod 5 to rotate, and the end of the test needle 7 slides along the surface of the metal profile. When the test needle 7 slides along the surface of the metal profile, due to the uneven surface of the metal profile, the test needle 7 will have a telescopic movement in the telescopic hole. When the test needle 7 moves up and down in the telescopic hole, the displacement measuring mechanism measures the movement of the test needle 7 in the telescopic hole. During the measurement process, assuming that the spacing between two adjacent test needles 7 is Q, then during the test process, it is necessary to ensure that the displacement of the working block 6 and the test needle 7 is greater than Q, so that at least three test needles 7 can pass through the same position, thereby realizing mutual verification, reducing the occurrence of failures in a certain displacement measuring mechanism or test needle 7, and thus judging the roughness of the metal profile surface according to the movement of the test needle 7.

[0016] During actual measurement, it is necessary to ensure that the test needle 7 and the surface of the metal profile remain perpendicular. In most traditional operation methods, the staff clamps the metal profile to be tested with a clamp and determines the perpendicularity of the test needle 7 and the surface of the metal profile by visual inspection. However, the error of visual inspection is large, which may cause the error of the test result to be too large. Therefore, it is necessary to adjust the tested surface of the metal profile to be perpendicular to the test needle 7, as follows: A leveling mechanism is also installed on the bottom surface of the working block 6. The leveling mechanism is used to adjust the test needle 7 to be perpendicular to the surface of the metal profile. Before the test, the leveling mechanism adjusts the test needle 7 and the surface of the metal profile to maintain a vertical state.

[0017] During the test, an adjusting plate 8 is rotatably installed on the top surface of the base 1, and a clamp for clamping the metal profile is installed on the adjusting plate 8. The metal profile to be tested is placed on the adjusting plate 8, and then the clamp is used to clamp and fix the metal profile to be tested. The leveling mechanism is used to ensure that the test needle 7 and the surface of the metal profile remain vertical, thereby ensuring the accuracy of the measurement result.

[0018] like Figure 2 , Figure 3 and Figure 6 As shown in , the displacement measuring mechanism includes a fixed panel 9, a movable panel 10, a transmission rod 11 and an amplifying component; a measuring slot is provided in the working block 6, the fixed panel 9 is fixedly installed at the bottom of the measuring slot, the movable panel 10 is slidably installed in the measuring slot, and the fixed panel 9 and the movable panel 10 are arranged in parallel, the current is applied between the fixed panel 9 and the movable panel 10, and stored between the fixed panel 9 and the movable panel 10, when the distance between the fixed panel 9 and the movable panel 10 is larger, the charge storage capacity is larger, when the movable panel 10 is subjected to an external force, the charge between the fixed panel 9 and the movable panel 10 is reduced, and this change can be measured in Ford units, and its working principle is similar to that of a capacitive weight sensor, one end of the transmission rod 11 is fixedly connected to the movable panel 10, and the amplifying component is used to amplify the displacement of the test needle 7 in the telescopic hole and convert it into the movement of the transmission rod 11, in actual situations, the transmission rod 11 and the amplifying component need to be used in conjunction, the movement of the test needle 7 in the telescopic hole is amplified and transmitted to the movement of the movable panel 10, so that the measurement result is more accurate and the error is reduced.

[0019] like Figure 3 As shown in , the amplification component includes a transmission lever 12 and a No. 1 return spring 13; a motion cavity 14 is opened in the working block 6, and the transmission lever 12 is rotatably installed in the motion cavity 14. The transmission lever 12 abuts against the end of the test needle 7 and the end of the transmission rod 11 respectively. In actual situations, the ends of the test needle 7 and the transmission rod 11 always abut against the transmission lever 12; the No. 1 return spring 13 is installed in the motion cavity 14, and the two ends of the No. 1 return spring 13 are fixedly connected to the inner wall of the motion cavity 14 and the transmission lever 12 respectively. During the specific operation process, the test needle 7 moves up and down in the telescopic hole, and the end of the test needle 7 abuts against one side end of the transmission lever 12, so that the transmission lever 12 rotates in the motion cavity 14, and then the transmission lever 12 abuts against the end of the transmission rod 11, so that the movement displacement of the transmission rod 11 and the displacement of the test needle 7 are multiplied, and then the transmission rod 11 drives the movable panel 10 to move synchronously, thereby calculating the displacement of the test needle 7, thereby judging the roughness of the metal profile surface, and making the measurement result more accurate.

[0020] like Figure 3 and Figure 6As shown in the figure, the outer periphery of the transmission rod 11 is circumferentially connected to a boss No. 1, a limiting groove slidably matched with the boss No. 1 is provided in the working block 6, a No. 2 return spring 15 is provided in the No. 1 limiting groove, and the two ends of the No. 2 return spring 15 respectively abut against the end inner wall of the No. 1 limiting groove and the boss No. 1; in actual situations, in order to ensure that the transmission rod 11 can always abut against the transmission lever 12 and ensure the accuracy of the transmission, the gap between the two is reduced, which may cause a large error in the measurement result.

[0021] like Figure 3 As shown in the figure, the outer periphery of the test needle 7 is circumferentially connected with the No. 2 boss, and the working block 6 is provided with a No. 2 limiting slide groove which slides with the No. 2 boss, and a No. 3 return spring 16 is arranged in the No. 2 limiting slide groove, and the two ends of the No. 3 return spring 16 are respectively against the end inner wall of the No. 2 limiting slide groove and the No. 2 boss, and the rebound effect of the No. 3 return spring 16 makes the test end of the test needle 7 always against the surface of the metal profile, which can ensure that the test end of the test needle 7 can slide along the surface of the metal profile, thereby ensuring the accuracy of the measurement result.

[0022] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 As shown in, the leveling mechanism includes two electric telescopic rods 17, which are arranged parallel to the test needle 7. A rotating bracket 18 is fixedly installed on the top surface of the base 1, and the adjusting support plate 8 is rotatably installed on the rotating bracket 18. A stable support structure is also installed on the base 1. There are two stable support structures, which are respectively located on both sides of the rotating bracket 18. The output end of the stable support structure is against the bottom surface of the adjusting support plate 8. In the actual operation process, the metal profile is placed on the adjusting support plate 8 and clamped and fixed with a clamp. When the measured surface of the metal profile is a plane, the output shafts of the two electric telescopic rods 17 extend to the same length, so that the output shafts of the two electric telescopic rods 17 are simultaneously against the measured surface of the measured metal profile, so that the measured surface of the metal profile is parallel to the bottom surface of the working block 6, and then the adjusting support plate 8 is fixed to ensure that the position of the metal profile is fixed, so that the test needle 7 and the surface of the measured metal profile can be kept vertical, and the accuracy of the measurement result can be ensured; when the surface of the measured metal profile is as Fig. 9 As shown in the figure, according to the size data of the metal profile, the length difference of the output shaft extension of the two electric telescopic rods 17 is adjusted so that the output ends of the two electric telescopic rods 17 are respectively against the surface of the metal profile, and the adjustment support plate 8 is rotated on the rotating bracket 18 so that the measured surface of the metal profile and the bottom surface of the working block 6 remain parallel.

[0023] like Figure 2 and Figure 7 As shown in, the stable support structure includes a fixed cylinder 19, a support rod 20, a lifting spring 21 and a locking assembly; the fixed cylinder 19 is fixedly installed on the top surface of the base 1, and a storage hole that can accommodate the support rod 20 is opened on the top surface of the fixed cylinder 19. The support rod 20 is slidably installed in the storage hole, and the two ends of the lifting spring 21 are respectively against the bottom inner wall of the storage hole and the bottom end of the support rod 20, and the top end of the lifting spring 21 always rests on the bottom surface of the adjustment support plate 8; the locking assembly is used to fix the position of the support rod 20 in the storage hole. When the metal profile is adjusted and the adjustment support plate 8 is rotated, the rebound effect of the two lifting springs 21 drives the top ends of the two support rods 20 to rest against the bottom surface of the adjustment support plate 8 respectively. When the inclination angle of the adjustment support plate 8 is adjusted, the locking assembly fixes the position of the support rod 20 in the storage hole, thereby ensuring the stability of the adjustment support plate 8, thereby ensuring the stability of the metal profile.

[0024] like Figure 7 As shown in the figure, the locking assembly includes an electromagnet 22 and a magnetic block 23; a locking hole is opened on the inner wall of the storage hole, the electromagnet 22 is fixedly installed in the locking hole, and the magnetic block 23 is slidably installed in the locking hole. When the electromagnet 22 is powered on or off, a repulsive effect is generated with the magnetic block 23, so that the magnetic block 23 is pressed against the side of the support rod 20, and the position of the support rod 20 is fixed by friction, thereby completely adjusting the stability of the support plate 8.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal profile surface detection device, characterized in that: The invention comprises a base (1), side frames (2) are fixedly mounted on both ends of the base (1), a lifting block (3) is slidably mounted on the side frames (2), a guide rod (4) is fixedly connected between the two lifting blocks (3), a driving threaded rod (5) arranged parallel to the guide rod (4) is rotatably mounted between the two lifting blocks (3), a working block (6) is slidably mounted on the guide rod (4), the working block (6) is threadedly mounted on the driving threaded rod (5), a plurality of linearly arranged test pins (7) are mounted on the bottom surface of the working block (6), the plurality of test pins (7) are arranged parallel to each other, a telescopic hole capable of accommodating the test pins (7) is provided on the bottom surface of the working block (6), a displacement measuring mechanism is mounted inside the working block (6), the displacement measuring mechanism is used to measure the displacement of the test pins (7) in the telescopic hole; A leveling mechanism is also installed on the bottom surface of the working block (6), and the leveling mechanism is used to adjust the test needle (7) to be perpendicular to the surface of the metal profile; An adjustment support plate (8) is rotatably mounted on the top surface of the base (1), and a clamp for clamping a metal profile is mounted on the adjustment support plate (8).

2. The metal profile surface detection device according to claim 1, characterized in that: The displacement measuring mechanism comprises a fixed panel (9), a movable panel (10), a transmission rod (11) and an amplifying assembly; a measuring slot is provided in the working block (6); the fixed panel (9) is fixedly mounted at the bottom of the measuring slot; the movable panel (10) is slidably mounted in the measuring slot; the fixed panel (9) and the movable panel (10) are arranged in parallel; and one end of the transmission rod (11) is fixedly connected to the movable panel (10); The amplifying component is used to amplify the displacement of the test needle (7) in the telescopic hole and convert it into the movement of the transmission rod (11).

3. The metal profile surface detection device according to claim 2, characterized in that: The amplification component comprises a transmission lever (12) and a No. 1 return spring (13); a movement cavity (14) is provided in the working block (6), the transmission lever (12) is rotatably mounted in the movement cavity (14), and the transmission lever (12) abuts against the end of the test needle (7) and the end of the transmission rod (11) respectively; The first return spring (13) is installed in the motion chamber (14), and two ends of the first return spring (13) are respectively fixedly connected to the inner wall of the motion chamber (14) and the transmission lever (12).

4. The metal profile surface detection device according to claim 3, characterized in that: The outer periphery of the transmission rod (11) is circumferentially connected to a No. 1 boss, the working block (6) is provided with a No. 1 limit slide groove slidably matched with the No. 1 boss, a No. 2 return spring (15) is arranged in the No. 1 limit slide groove, and two ends of the No. 2 return spring (15) are respectively against the end inner wall of the No. 1 limit slide groove and the No. 1 boss; The outer periphery of the test needle (7) is circumferentially connected to a No. 2 boss, and the working block (6) is provided with a No. 2 limit slide groove slidably matched with the No. 2 boss, and a No. 3 return spring (16) is arranged in the No. 2 limit slide groove, and the two ends of the No. 3 return spring (16) are respectively against the end inner wall of the No. 2 limit slide groove and the No. 2 boss.

5. The metal profile surface detection device according to claim 1, characterized in that: The leveling mechanism comprises two electric telescopic rods (17), and the electric telescopic rods (17) are arranged in parallel with the test needle (7).

6. The metal profile surface detection device according to claim 1, characterized in that: A rotating bracket (18) is fixedly mounted on the top surface of the base (1), and the adjusting support plate (8) is rotatably mounted on the rotating bracket (18). A stable support structure is also mounted on the base (1), and there are two stable support structures, which are respectively located on both sides of the rotating bracket (18), and the output ends of the stable support structures are against the bottom surface of the adjusting support plate (8).

7. The metal profile surface detection device according to claim 6, characterized in that: The stable support structure comprises a fixed cylinder (19), a support rod (20), a lifting spring (21) and a locking assembly; the fixed cylinder (19) is fixedly mounted on the top surface of the base (1); a receiving hole capable of receiving the support rod (20) is provided on the top surface of the fixed cylinder (19); the support rod (20) is slidably mounted in the receiving hole; two ends of the lifting spring (21) respectively abut against the bottom inner wall of the receiving hole and the bottom end of the support rod (20); and the top end of the lifting spring (21) always abuts against the bottom surface of the adjustment support plate (8); The locking assembly is used to fix the position of the support rod (20) in the receiving hole.

8. The metal profile surface detection device according to claim 7, characterized in that: The locking assembly comprises an electromagnet (22) and a magnetic block (23); a locking hole is provided on the inner wall of the receiving hole, the electromagnet (22) is fixedly mounted in the locking hole, and the magnetic block (23) is slidably mounted in the locking hole.

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