CN115371581A - Digital real-time welding angular deformation measuring instrument suitable for cross or T-shaped piece and measuring method thereof - Google Patents
Digital real-time welding angular deformation measuring instrument suitable for cross or T-shaped piece and measuring method thereof Download PDFInfo
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- CN115371581A CN115371581A CN202211012625.0A CN202211012625A CN115371581A CN 115371581 A CN115371581 A CN 115371581A CN 202211012625 A CN202211012625 A CN 202211012625A CN 115371581 A CN115371581 A CN 115371581A
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
Abstract
A digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped piece and a measuring method thereof relate to the technical field of welding angular deformation measurement. The invention aims to solve the problems of overlarge artificial error, time consumption and real-time deformation measurement of industrial welding angular deformation measurement and the problem that the conventional welding angular deformation measuring instrument can only measure a single plane welding piece. The method comprises the following steps: the analog quantity is led into the analog quantity conversion 485 module to be endowed with an analog quantity device address, the single chip microcomputer and the RS485 module as well as the RS485 module and the analog quantity conversion 485 module are connected to form a channel, the analog quantity is successfully led into the single chip microcomputer by adopting a modbus protocol, and finally, the calculation result of the single chip microcomputer is displayed on a 1602 LCD. The invention can obtain a digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped piece and a measuring method thereof.
Description
Technical Field
The invention relates to the technical field of welding angular deformation measurement, in particular to a digital real-time welding angular deformation measuring instrument and a measuring method thereof, which are suitable for a cross or T-shaped piece.
Background
The welding is a local heating rapid forming mode, a welding seam area is instantly melted to form a molten pool with a certain shape, and angular deformation can be generated when compression plastic deformation areas are asymmetrically distributed on a neutral surface in the cooling process. Angular deformation is a welding defect, which adversely affects both static and dynamic mechanical properties of the welded structure, and thus long efforts have been made in the industry to control welding angular deformation. The simple angular deformation test of the butt joint test plate can be obtained by adopting a steel plate ruler, a knife edge angle ruler, CAD scanning analysis and the like, and needs to be calculated by a geometric formula, so that the test precision is difficult to guarantee, and the method is difficult to be used for the real-time angular deformation test along with the welding process.
At present, in the industry, a variety of methods for measuring welding angle deformation exist, such as finite element analysis, manual edge tracing cosine theorem calculation and edge tracing measurement by using drawing software after electronic scanning, although the test methods are operable, the test methods are time-consuming and have low precision, small-scale experimental data acquisition is marginal, and large-scale experimental analysis is still elbow-catching. At present, no tool for directly measuring the welding angular deformation exists in the market, so that the technical invention fills the gap in the market.
Disclosure of Invention
The invention aims to solve the problems of overlarge artificial error, time consumption and deformation real-time measurement of industrial welding angular deformation measurement and the problem that the conventional welding angular deformation measuring instrument can only measure a single plane welding piece, and provides a digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped piece and a measuring method thereof.
A digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped part comprises a No. 1 optical axis 2, a section bar 4, a No. 2 optical axis 8, 6 laser displacement sensors 9, a screw rod a11, a cross welding plate 17 and a screw rod b18;
the section 4 is a U-shaped structural member, a cross welding plate 17 is arranged on a frame at the bottom of the section 4, and the cross welding plate 17 is fixed through a clamp; one side of the top frame of the section bar 4 is an A side 19, and the other side of the top frame of the section bar 4 is a B side 20; the edge A19 is provided with two optical axis supports 1,1, two ends of the optical axis 2 are arranged in through holes of the optical axis support 1, the optical axis 2 No. 1 is provided with an optical axis nut base 3, a screw rod support a6 is arranged on the optical axis nut base 3, an optical axis support 7 is arranged on the screw rod support a6, a through hole is formed in the screw rod support a6, and a through hole is formed in the optical axis support 7;
the side B20 is provided with two screw rod supports B13, the screw rod supports B13 are provided with internal threads, one end of the screw rod B18 is in threaded connection with one screw rod support B13, the other end of the screw rod B18 is in threaded connection with the other screw rod support B13, and the end part of the other end of the screw rod B18 is connected with the rotating mechanism a 14; a threaded seat 21 is arranged on the screw rod b18, an internal thread is arranged on the threaded seat 21, and an external thread of the screw rod b18 is in threaded connection with the internal thread of the threaded seat 21; a screw rod support a6 is arranged on the threaded seat 21, an optical axis support 7 is arranged on the screw rod support a6, an internal thread is arranged on the screw rod support a6, and a through hole is formed in the optical axis support 7;
one end of the screw rod a11 penetrates through a through hole on the screw rod support a6 on the side A19, the other end of the screw rod a11 is in threaded connection with an internal thread on the screw rod support a6 on the side B20, and the end part of the other end of the screw rod a11 is connected with the rotating mechanism B12; one end of the No. 2 optical axis 8 penetrates through a through hole of the optical axis support 7 on the side A19, the other end of the No. 2 optical axis 8 penetrates through a through hole of the optical axis support 7 on the side B20, the No. 2 optical axis 8 is arranged in parallel with the screw rod a11, and the screw rod a11 is arranged perpendicular to the screw rod B18;
the upper part of the connecting plate b10 is provided with a through hole, the lower part of the connecting plate b10 is provided with a threaded hole, the through hole at the upper part of the connecting plate b10 is sleeved on the No. 2 optical axis 8, and the threaded hole at the lower part of the connecting plate b10 is in threaded connection with the screw rod a 11; two end faces of the connecting plate b10 are respectively provided with 3 laser displacement sensors 9, and the laser displacement sensors 9 on the two end faces of the connecting plate b10 are symmetrically arranged;
the output of 6 laser displacement sensor 9 all is connected with the input electricity that the analog quantity changes the 485 module, and the output that the analog quantity changes the 485 module is connected with the input electricity of RS485 module, and the output of RS485 module is connected with the input electricity of singlechip, the output of singlechip be connected with the input electricity of display screen.
A digital real-time welding angular deformation measuring instrument measuring method suitable for a cross or T-shaped part is carried out according to the following steps:
1. placing the digital real-time welding angular deformation measuring instrument on a horizontal ground, placing the universal level gauge on the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16, and adjusting the digital real-time welding angular deformation measuring instrument to be horizontal; one right-angle side of the cross welding plate 17 is placed in the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16, and the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16 are clamped to fix the cross welding plate 17;
2. respectively rotating the number 2 rotating hand and the number 1 rotating hand to enable the 6 laser displacement sensors 9 to be positioned right above the cross-shaped welding plate 17; the power supply is plugged, the analog quantity measured by the 6 laser displacement sensors 9 is guided into the analog quantity conversion 485 module to be endowed with an analog quantity device address, a TTL conversion USB serial port mode of the STC89C52 single chip microcomputer is converted into a 485 serial port mode, the single chip microcomputer and the RS485 module are connected to form a passage, the RS485 module and the analog quantity conversion 485 module are connected to form a passage, the analog quantity is successfully guided into the STC89C52 single chip microcomputer by adopting a modbus protocol, and finally, the calculation result of the STC89C52 single chip microcomputer is displayed on a 1602LCD display screen.
The invention has the beneficial effects that:
(1) The invention can directly hit the laser beam to the plane of the welding workpiece to obtain the angular deformation, and can carry out real-time measurement by means of high-precision measurement, thereby solving the problems of overlarge artificial error, time consumption and real-time measurement of deformation in industrial welding angular deformation measurement.
(2) The research can be used for testing the welding angular deformation of the welding structure at any time along with welding or after welding, is a non-contact measuring system, can be carried in a welding robot system, does not interfere with the welding process, directly gives the angular deformation test result, and is portable, high in precision and wide in applicability.
(3) The invention relates to a digital test system for assisting in optimizing a welding process in a welding production line or a welding component of a large T-shaped plate and a cross-shaped plate during welding/post-welding angular deformation test.
(4) Through the observation of the actual phenomenon of the component, some plates are tilted after being welded, the line segments formed by sequential points of the tilting degree are not linear straight lines but curves, the patent mainly solves the angle values of specified four points by fitting the curves, and the error of the angle to be solved is reduced by averaging the angle values of the five points.
(5) The invention has high measurement precision, can realize real-time measurement, has simple and easy operation process, short measurement time and large-scale measurement.
The invention can obtain a digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped piece and a measuring method thereof.
Drawings
Fig. 1 is a schematic structural diagram of a digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped part, wherein 1 is an optical axis support, 2 is an optical axis 1, 3 is an optical axis nut seat, 4 is a profile, 5 is a connecting plate a,6 is a screw rod support a,7 is an optical axis support, 8 is an optical axis 2, 9 is a laser displacement sensor, 10 is a connecting plate B,11 is a screw rod a,12 is a rotating mechanism B,13 is a screw rod support B,14 is a rotating mechanism a,15 is a pressure clamp No. 1, 16 is a pressure clamp No. 2, 17 is a cross welding plate, 18 is a screw rod B,19 is an a side, 20 is a B side, and 21 is a screw seat.
FIG. 2 is a simplified simulation of the model.
Fig. 3 is an RS485 module.
Fig. 4 is an STC89C52 single chip microcomputer.
Fig. 5 is a fan.
Fig. 6 shows an analog to 485 conversion module.
FIG. 7 shows a BL-400MZ series miniature laser displacement sensor.
FIG. 8 is a 1602LCD display.
Detailed Description
The first specific implementation way is as follows: the digital real-time welding angular deformation measuring instrument suitable for the cross or T-shaped piece comprises a No. 1 optical axis 2, a section bar 4, a No. 2 optical axis 8, 6 laser displacement sensors 9, a screw rod a11, a cross welding plate 17 and a screw rod b18;
the section 4 is a U-shaped structural member, a cross welding plate 17 is arranged on a frame at the bottom of the section 4, and the cross welding plate 17 is fixed through a clamp; one side of the top frame of the section bar 4 is an A side 19, and the other side of the top frame of the section bar 4 is a B side 20; the edge A19 is provided with two optical axis supports 1,1, two ends of the optical axis 2 are arranged in through holes of the optical axis support 1, the optical axis 2 No. 1 is provided with an optical axis nut base 3, a screw rod support a6 is arranged on the optical axis nut base 3, an optical axis support 7 is arranged on the screw rod support a6, a through hole is formed in the screw rod support a6, and a through hole is formed in the optical axis support 7;
the side B20 is provided with two screw rod supports B13, the screw rod supports B13 are provided with internal threads, one end of the screw rod B18 is in threaded connection with one screw rod support B13, the other end of the screw rod B18 is in threaded connection with the other screw rod support B13, and the end part of the other end of the screw rod B18 is connected with the rotating mechanism a 14; a threaded seat 21 is arranged on the screw rod b18, an internal thread is arranged on the threaded seat 21, and an external thread of the screw rod b18 is in threaded connection with the internal thread of the threaded seat 21; a screw rod support a6 is arranged on the threaded seat 21, an optical axis support 7 is arranged on the screw rod support a6, an internal thread is arranged on the screw rod support a6, and a through hole is formed in the optical axis support 7;
one end of the screw rod a11 penetrates through a through hole on the screw rod support a6 on the side A19, the other end of the screw rod a11 is in threaded connection with an internal thread on the screw rod support a6 on the side B20, and the end part of the other end of the screw rod a11 is connected with the rotating mechanism B12; one end of the No. 2 optical axis 8 penetrates through a through hole of the optical axis support 7 on the side A19, the other end of the No. 2 optical axis 8 penetrates through a through hole of the optical axis support 7 on the side B20, the No. 2 optical axis 8 is arranged in parallel with the screw rod a11, and the screw rod a11 is arranged perpendicular to the screw rod B18;
the upper part of the connecting plate b10 is provided with a through hole, the lower part of the connecting plate b10 is provided with a threaded hole, the through hole at the upper part of the connecting plate b10 is sleeved on the No. 2 optical axis 8, and the threaded hole at the lower part of the connecting plate b10 is in threaded connection with the screw rod a 11; two end faces of the connecting plate b10 are respectively provided with 3 laser displacement sensors 9, and the laser displacement sensors 9 on the two end faces of the connecting plate b10 are symmetrically arranged;
the output of 6 laser displacement sensor 9 all is connected with the input electricity that the analog quantity changes the 485 module, and the output that the analog quantity changes the 485 module is connected with the input electricity of RS485 module, and the output of RS485 module is connected with the input electricity of singlechip, the output of singlechip be connected with the input electricity of display screen.
The second embodiment is as follows: the first difference between the present embodiment and the present embodiment is: the cross welding plate 17 is fixed by a No. 1 pressure clamp 15 and a No. 2 pressure clamp 16.
Other steps are the same as those in the first embodiment.
The third concrete implementation mode: the first or second difference between the present embodiment and the second embodiment is: the rotating mechanism a14 is a number 2 rotating hand, and the rotating mechanism b12 is a number 1 rotating hand.
The other steps are the same as those in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment and one of the first to third embodiments is as follows: the spindle bearing a6 on the a-side 19 is connected to the optical axis bearing 7 via a connecting plate a 5.
The other steps are the same as those in the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the spindle support a6 on the B side 20 is connected to the optical axis support 7 via a connecting plate a 5.
The other steps are the same as those in the first to fourth embodiments.
The sixth specific implementation mode is as follows: the difference between this embodiment and one of the first to fifth embodiments is: the laser displacement sensor 9 is a BL-400MZ series micro laser displacement sensor.
The other steps are the same as those in the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the model of the single chip microcomputer is an STC89C52 single chip microcomputer.
The other steps are the same as those in the first to sixth embodiments.
The specific implementation mode is eight: the difference between this embodiment and the first to seventh embodiments is: the model of the display screen is 1602LCD display screen.
The other steps are the same as those in the first to seventh embodiments.
The specific implementation method nine: the embodiment of the invention relates to a measuring method of a digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped piece, which comprises the following steps:
1. placing the digital real-time welding angular deformation measuring instrument on a horizontal ground, placing the universal level gauge on the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16, and adjusting the digital real-time welding angular deformation measuring instrument to be horizontal; one right-angle side of the cross welding plate 17 is placed in the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16, and the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16 are clamped to fix the cross welding plate 17;
2. respectively rotating the number 2 rotating hand and the number 1 rotating hand to enable the 6 laser displacement sensors 9 to be positioned right above the cross-shaped welding plate 17; a power supply is plugged, the analog quantity measured by 6 laser displacement sensors 9 is led into an analog quantity conversion 485 module to be endowed with an analog quantity device address, a TTL conversion USB serial port mode of an STC89C52 singlechip is converted into a 485 serial port mode, the singlechip is connected with an RS485 module to form a passage, the RS485 module is connected with an analog quantity conversion 485 module to form a passage,
and successfully importing the analog quantity into the STC89C52 single-chip microcomputer by adopting a modbus protocol, and finally displaying the calculation result of the STC89C52 single-chip microcomputer on a 1602LCD display screen.
The specific implementation mode is ten: the ninth embodiment differs from the ninth embodiment in that: the laser displacement sensor 9 is a BL-400MZ series miniature laser displacement sensor.
The other steps are the same as those in the ninth embodiment.
The following examples were used to demonstrate the beneficial effects of the present invention:
example 1: a digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped piece comprises a No. 1 optical axis 2, a section bar 4, a No. 2 optical axis 8, 6 laser displacement sensors 9, a screw rod a11, a cross welding plate 17 and a screw rod b18;
the section 4 is a U-shaped structural member, a cross-shaped welding plate 17 is arranged on a frame at the bottom of the section 4, and the cross-shaped welding plate 17 is fixed through a clamp; one side of the top frame of the section bar 4 is an A side 19, and the other side of the top frame of the section bar 4 is a B side 20; the edge A19 is provided with two optical axis supports 1,1, two ends of the optical axis 2 are arranged in through holes of the optical axis supports 1, the optical axis 2 No. 1 is provided with an optical axis nut base 3, a screw rod support a6 is arranged on the optical axis nut base 3, an optical axis support 7 is arranged on the screw rod support a6, a through hole is formed in the screw rod support a6, and a through hole is formed in the optical axis support 7;
the side B20 is provided with two screw rod supports B13, the screw rod supports B13 are provided with internal threads, one end of the screw rod B18 is in threaded connection with one screw rod support B13, the other end of the screw rod B18 is in threaded connection with the other screw rod support B13, and the end part of the other end of the screw rod B18 is connected with the rotating mechanism a 14; a threaded seat 21 is arranged on the screw rod b18, an internal thread is arranged on the threaded seat 21, and an external thread of the screw rod b18 is in threaded connection with the internal thread of the threaded seat 21; a screw rod support a6 is arranged on the threaded seat 21, an optical axis support 7 is arranged on the screw rod support a6, an internal thread is arranged on the screw rod support a6, and a through hole is formed in the optical axis support 7;
one end of the screw rod a11 penetrates through a through hole on the screw rod support a6 on the side A19, the other end of the screw rod a11 is in threaded connection with an internal thread on the screw rod support a6 on the side B20, and the end part of the other end of the screw rod a11 is connected with the rotating mechanism B12; one end of the No. 2 optical axis 8 penetrates through a through hole of the optical axis support 7 on the side A19, the other end of the No. 2 optical axis 8 penetrates through a through hole of the optical axis support 7 on the side B20, the No. 2 optical axis 8 is arranged in parallel with the screw rod a11, and the screw rod a11 is arranged perpendicular to the screw rod B18;
the upper part of the connecting plate b10 is provided with a through hole, the lower part of the connecting plate b10 is provided with a threaded hole, the through hole at the upper part of the connecting plate b10 is sleeved on the No. 2 optical axis 8, and the threaded hole at the lower part of the connecting plate b10 is in threaded connection with the screw rod a 11; two end faces of the connecting plate b10 are respectively provided with 3 laser displacement sensors 9, and the laser displacement sensors 9 on the two end faces of the connecting plate b10 are symmetrically arranged;
the output of 6 laser displacement sensor 9 all is connected with the input electricity that the analog quantity changes the 485 module, and the output that the analog quantity changes the 485 module is connected with the input electricity of RS485 module, and the output of RS485 module is connected with the input electricity of singlechip, the output of singlechip be connected with the input electricity of display screen.
The cross welding plate 17 is fixed by a No. 1 pressure clamp 15 and a No. 2 pressure clamp 16; the rotating mechanism a14 is a number 2 rotating hand, and the rotating mechanism b12 is a number 1 rotating hand.
The screw rod support a6 on the side a 19 is connected with the optical axis support 7 through a connecting plate a5, and the screw rod support a6 on the side B20 is connected with the optical axis support 7 through a connecting plate a 5.
The laser displacement sensor 9 is a BL-400MZ series micro laser displacement sensor, the singlechip is an STC89C52 singlechip, and the display screen is a 1602LCD display screen.
Example 2: a digital real-time welding angular deformation measuring instrument measuring method suitable for a cross or T-shaped part is carried out according to the following steps:
1. placing the digital real-time welding angular deformation measuring instrument on a horizontal ground, placing the universal level gauge on the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16, and adjusting the digital real-time welding angular deformation measuring instrument to be horizontal; one right-angle side of the cross welding plate 17 is placed in the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16, and the No. 1 pressure clamp 15 and the No. 2 pressure clamp 16 are clamped to fix the cross welding plate 17;
2. respectively rotating the number 2 rotating hand and the number 1 rotating hand to enable the 6 BL-400MZ series micro laser displacement sensors to be positioned right above the cross welding plate 17; the method comprises the steps that a power supply is plugged, analog quantity measured by 6 BL-400MZ series micro laser displacement sensors is led into an analog quantity conversion 485 module to be endowed with an analog quantity device address, a TTL conversion USB serial port mode of an STC89C52 single chip microcomputer is converted into a 485 serial port mode, the single chip microcomputer is connected with an RS485 module to form a passage, the RS485 module is connected with the analog quantity conversion 485 module to form a passage, the analog quantity is led into the STC89C52 single chip microcomputer successfully by adopting a modbus protocol, and finally a calculation result of the STC89C52 single chip microcomputer is displayed on a 1602LCD display screen.
3. Calculating process and data processing:
the measured state, i.e. the laser displacement sensor position connecting line, is kept parallel to the horizontal plane, as shown in fig. 2:
coordinates of the six sensors of the displacement sensor 1 are displayed by the laser displacement sensor 2, vertical distances from left to right are sequentially recorded as d1, d2, d3, d4, d5 and d6, the average values of d1, d2 and d3 are recorded as d7, and the average values of d4, d5 and d6 are recorded as d8.
From this graph, it can be derived using the lagrange difference:
to f 1 (x) And f 2 (x) Make a derivative as f 1 Vertical and horizontal (x) And f 2 Vertical and horizontal (x) .1. The Taking d1, d2, d3, d7 into f 1 Vertical and horizontal (x) Calculating the angle values of the corresponding points, and recording the angle values as theta 1, theta 2, theta 3 and theta 7; taking d4, d5, d6, d8 into f 2 Vertical and horizontal (x) The angle values of the corresponding points are obtained and are denoted as θ 4, θ 5, θ 6, and θ 8. In practice θ 7, θ 8 are the target angles, and the two are added, i.e. the angle θ 9= θ 7+ θ 8 at the weld. The STC89C52 single chip microcomputer is programmed according to the principle and is finally displayed on a 1602LCD in the form of analog quantity.
Claims (10)
1. A digital real-time welding angular deformation measuring instrument suitable for a cross or T-shaped part is characterized by comprising a No. 1 optical axis (2), a section bar (4), a No. 2 optical axis (8), 6 laser displacement sensors (9), a screw rod a (11), a cross welding plate (17) and a screw rod b (18);
the section bar (4) is a U-shaped structural member, a cross welding plate (17) is arranged on the bottom frame of the section bar (4), and the cross welding plate (17) is fixed through a clamp; one side of the top frame of the section bar (4) is an A side (19), and the other side of the top frame of the section bar (4) is a B side (20); the optical axis A side (19) is provided with two optical axis supports (1), two ends of an optical axis 1 (2) are arranged in through holes of the optical axis supports (1), the optical axis 1 (2) is provided with an optical axis nut seat (3), a screw rod support a (6) is arranged on the optical axis nut seat (3), an optical axis support (7) is arranged on the screw rod support a (6), the screw rod support a (6) is provided with a through hole, and the optical axis support (7) is provided with a through hole;
two screw rod supports B (13) are arranged on the side B (20), internal threads are arranged on the screw rod supports B (13), one end of a screw rod B (18) is in threaded connection with one screw rod support B (13), the other end of the screw rod B (18) is in threaded connection with the other screw rod support B (13), and the end part of the other end of the screw rod B (18) is connected with the rotating mechanism a (14); a threaded seat (21) is arranged on the screw rod b (18), an internal thread is arranged on the threaded seat (21), and an external thread of the screw rod b (18) is in threaded connection with the internal thread of the threaded seat (21); a screw rod support a (6) is arranged on the threaded seat (21), a light axis support (7) is arranged on the screw rod support a (6), internal threads are arranged on the screw rod support a (6), and a through hole is formed in the light axis support (7);
one end of the screw rod a (11) penetrates through a through hole in the screw rod support a (6) on the side A (19), the other end of the screw rod a (11) is in threaded connection with an internal thread on the screw rod support a (6) on the side B (20), and the end part of the other end of the screw rod a (11) is connected with the rotating mechanism B (12); one end of the No. 2 optical axis (8) penetrates through a through hole of the optical axis support (7) on the side A (19), the other end of the No. 2 optical axis (8) penetrates through a through hole of the optical axis support (7) on the side B (20), the No. 2 optical axis (8) is arranged in parallel with the screw rod a (11), and the screw rod a (11) is arranged perpendicular to the screw rod B (18);
the upper part of the connecting plate b (10) is provided with a through hole, the lower part of the connecting plate b (10) is provided with a threaded hole, the through hole at the upper part of the connecting plate b (10) is sleeved on the No. 2 optical axis (8), and the threaded hole at the lower part of the connecting plate b (10) is in threaded connection with the screw rod a (11); 3 laser displacement sensors (9) are respectively arranged on two end faces of the connecting plate b (10), and the laser displacement sensors (9) on the two end faces of the connecting plate b (10) are symmetrically arranged;
the output of 6 laser displacement sensor (9) all is connected with the input electricity that the analog quantity changes the 485 module, and the output that the analog quantity changes the 485 module is connected with the input electricity of RS485 module, and the output of RS485 module is connected with the input electricity of singlechip, the output of singlechip be connected with the input electricity of display screen.
2. A digital real-time welding angular deformation measuring instrument for "cross" or "T" shaped pieces, according to claim 1, characterized in that the cross welding plate (17) is fixed by a number 1 pressure clamp (15) and a number 2 pressure clamp (16).
3. The digital real-time welding angular deformation measuring instrument for the cross or T-shaped piece as claimed in claim 1, characterized in that the rotating mechanism a (14) is number 2 turner and the rotating mechanism b (12) is number 1 turner.
4. The digital real-time welding angular deformation measuring instrument for the cross-shaped or T-shaped piece according to claim 1, characterized in that the screw rod support a (6) on the A side (19) is connected with the optical axis support (7) through the connecting plate a (5).
5. The digital real-time welding angular deformation measuring instrument for the cross-shaped or T-shaped piece according to claim 1, characterized in that the screw rod support a (6) on the B side (20) is connected with the optical axis support (7) through the connecting plate a (5).
6. Digital real-time welding angular deformation measuring instrument for "cross" or "T" pieces, according to claim 1, characterized in that said laser displacement sensor (9) is a miniature laser displacement sensor of the BL-400MZ series.
7. The digital real-time welding angular deformation measuring instrument for the cross or T-shaped piece as claimed in claim 1, wherein the type of the single chip microcomputer is STC89C52 single chip microcomputer.
8. The digital real-time welding angular deformation measuring instrument for the cross-shaped or T-shaped parts as claimed in claim 1, wherein the display screen is 1602LCD display screen.
9. A method for measuring a digital real-time welding angular deformation measuring instrument suitable for cross or T-shaped parts according to any one of claims 1 to 8, characterized in that the measuring method is carried out according to the following steps:
1. placing the digital real-time welding angular deformation measuring instrument on a horizontal ground, placing the universal level gauge on the No. 1 pressure clamp (15) and the No. 2 pressure clamp (16), and adjusting the digital real-time welding angular deformation measuring instrument to be horizontal; one right-angle side of the cross welding plate (17) is placed in the No. 1 pressure clamp (15) and the No. 2 pressure clamp (16), and the No. 1 pressure clamp (15) and the No. 2 pressure clamp (16) are clamped to fix the cross welding plate (17);
2. the No. 2 rotating hand and the No. 1 rotating hand are respectively rotated to enable the 6 laser displacement sensors (9) to be positioned right above the cross-shaped welding plate (17); the power supply is plugged, the analog quantity measured by the 6 laser displacement sensors (9) is guided into the analog quantity to 485 module to give an analog quantity device address, the TTL to USB serial port mode of the STC89C52 single chip microcomputer is converted into the 485 serial port mode, the single chip microcomputer and the RS485 module are connected to form a channel, the RS485 module and the analog quantity to 485 module are connected to form a channel, the analog quantity is successfully guided into the STC89C52 single chip microcomputer by adopting a modbus protocol, and finally, the calculation result of the STC89C52 single chip microcomputer is displayed on a 1602LCD display screen.
10. The method for measuring the digital real-time welding angular deformation measuring instrument for the "cross" or "T" shaped pieces according to claim 9, characterized in that the laser displacement sensor (9) is a miniature laser displacement sensor of BL-400MZ series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211012625.0A CN115371581A (en) | 2022-08-23 | 2022-08-23 | Digital real-time welding angular deformation measuring instrument suitable for cross or T-shaped piece and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211012625.0A CN115371581A (en) | 2022-08-23 | 2022-08-23 | Digital real-time welding angular deformation measuring instrument suitable for cross or T-shaped piece and measuring method thereof |
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| CN114384536A (en) * | 2022-01-24 | 2022-04-22 | 国家高速列车青岛技术创新中心 | Digital real-time welding angular deformation measuring instrument based on laser displacement sensor and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114384536A (en) * | 2022-01-24 | 2022-04-22 | 国家高速列车青岛技术创新中心 | Digital real-time welding angular deformation measuring instrument based on laser displacement sensor and operation method thereof |
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