High-precision handheld laser diameter measuring instrument

Abstract

The utility model discloses a high-precision handheld laser diameter measuring instrument, which relates to the technical field of wire diameter measurement and comprises a laser diameter measuring instrument body, keys and a display screen are arranged on the laser diameter measuring instrument body, and a diameter measuring area, a mounting plate and a photoelectric receiving component mounted on the mounting plate are arranged at the upper end of the laser diameter measuring instrument body. Two tightening pulleys are arranged on one side of the upper end of the laser diameter measuring instrument body, a first sliding groove is formed in the upper side face of the laser diameter measuring instrument body, and first sliding blocks in sliding connection with the first sliding groove are fixedly arranged at the lower ends of the tightening pulleys. Two fixed pulleys and a clamping pulley opposite to the fixed pulleys are arranged at the upper end of the laser diameter measuring instrument body, a second sliding groove is formed in the upper side face of the laser diameter measuring instrument body, a second sliding block in sliding connection with the second sliding groove is fixedly arranged at the lower end of the clamping pulley, and a clamping spring is arranged between the second sliding block and the second sliding groove; therefore, the wire body in the diameter measuring area is in a straightened state, the bent wire body is prevented from influencing the accuracy of wire diameter measuring data, and the reliability of the measuring data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire diameter measurement, in particular to a high-precision handheld laser diameter measuring instrument. Background Art

[0002] A laser diameter gauge is a precision instrument that uses laser technology for non-contact measurement. It's primarily used for online, real-time measurement of an object's diameter, width, or other dimensions. Often used on production lines, it can perform high-precision measurements on fast-moving objects without disrupting the production line. Its operating principle is typically based on laser triangulation or beam scanning. When a laser beam strikes the object, the reflected light is captured by a detector, which uses an optical system and signal processing to calculate the object's dimensions.

[0003] Since the laser scanning diameter gauge is large or too heavy, it is not convenient for workers to measure the diameter of the designated area of the wire at any time. Therefore, a handheld laser diameter gauge is introduced on the market. The handheld laser diameter gauge combines laser technology and precision measurement technology, and can easily measure the diameter of the wire.

[0004] However, during the use of existing handheld laser calipers, the wire may have been rolled up for easy placement. Therefore, when the wire is pulled out for diameter measurement, the wire is usually in a bent state. The bending of the wire may affect the accuracy of the measurement results, resulting in reduced reliability of the diameter measurement data.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the problem that the bending of the wire body affects the accuracy of the measurement data during the diameter measurement process.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-precision handheld laser diameter measuring instrument, comprising a laser diameter measuring instrument body, the laser diameter measuring instrument body being provided with a button and a display screen, a diameter measuring area being provided at the upper end of the laser diameter measuring instrument body, a mounting plate being provided on one side of the upper end of the laser diameter measuring instrument body, and a photoelectric receiving component corresponding to the diameter measuring area being mounted on the mounting plate;

[0008] Two tension pulleys are provided on the upper end of the laser diameter measuring instrument body, located on the left and right sides of the photoelectric receiving component. A first slider is fixed to the lower end of the tension pulley. A first sliding groove corresponding to the two first sliders is formed on the upper side surface of the laser diameter measuring instrument body, and the first slider is slidably connected to the first sliding groove;

[0009] The upper end of the laser diameter gauge body is provided with two fixed pulleys respectively located on the opposite side of the two tensioning pulleys and a clamping pulley arranged opposite to the fixed pulleys. A second slider is fixed to the lower end of the clamping pulley. A second sliding groove corresponding to the two second sliders is formed on the upper side of the laser diameter gauge body, and the second slider is slidably connected to the second sliding groove. A clamping spring is provided between the second sliding groove and the side of the second slider away from the fixed pulley.

[0010] Wherein, the horizontal positions of the two tensioning pulleys and the clamping pulley are both between the diameter measuring area and the mounting plate.

[0011] As a further solution of the present invention: a first push rod is provided on the side of the laser diameter gauge body close to the mounting plate, two first round rods are connected to one side of the first push rod, and two first through holes connected to the first sliding groove are provided on the side of the laser diameter gauge body facing the first push rod, and the two first round rods pass through the first through holes and are connected to the first slider.

[0012] As a further solution of the present invention: a return spring is provided between a side surface of the first sliding block away from the first round rod and the first sliding groove.

[0013] As a further solution of the present invention: a second push rod is provided on the side of the laser diameter gauge body away from the mounting plate, two second round rods are connected to one side of the second push rod, and two second through holes connected to the second sliding groove are provided on the side of the laser diameter gauge body facing the second push rod, and the two second round rods pass through the second through holes and are connected to the second slider.

[0014] As a further solution of the present invention: a stop bar is provided in the first sliding groove and is arranged opposite to the stop bar, and when the first sliding block abuts against the stop bar, the positions of the two tensioning pulleys are consistent with the level of the diameter measuring area.

[0015] As a further solution of the present invention: the first sliding block is formed with a first mounting hole on the side facing the first round rod, one end of the first round rod is screwed to the first mounting hole, and the other end is axially connected to the first push rod.

[0016] As a further solution of the present invention: the second sliding block forms second mounting holes on two sides of the second round rod, two ends of the second round rod are screwed to the second mounting holes, and the other two ends are axially connected to the second push rod.

[0017] Compared with the prior art, the beneficial effects of the present technical solution are as follows: when using the laser caliper body to measure the wire diameter, the two clamping pulleys are first slid in the direction away from the fixed pulley, the measuring wire is placed between the fixed pulley and the clamping pulley, and then the clamping pulley is released. The clamping pulley and the fixed pulley form a clamping force on the wire through the push of the clamping spring. At this time, the two tensioning pulleys are pushed toward the diameter measuring area. In the process of the tensioning pulley moving toward the diameter measuring area, the wire will be pulled. Since the wire is clamped by the clamping pulley and the fixed pulley, when the tensioning pulley pushes the wire, the two ends of the wire are subjected to the clamping force, resulting in an increase in the pulling force required, thereby tightening the wire section between the two tensioning pulleys, and then making the wire in the diameter measuring area in a straight state, avoiding the bent wire from affecting the accuracy of the wire diameter measurement data, and improving the reliability of the measurement data;

[0018] When the first push rod is pushed, the two first round rods simultaneously push the two first sliders and the tensioning pulley toward the diameter measuring area, thereby facilitating the pushing of the two tensioning pulleys so that the wire body is pushed into the diameter measuring area. After the measurement is completed, the first push rod is released. At this time, the reset spring can be used to push the first slider and the tensioning pulley back to their original position, which is convenient for the next measurement. At the same time, the second push rod and the second round rod can also be used to conveniently move the clamping pulley position.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is another structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the tension pulley structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the clamping pulley structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the utility model when the tensioning pulley does not push the measured wire to be straightened;

[0026] Figure 6 This is a schematic diagram of the structure of the utility model after the tensioning pulley pushes the measured wire to be straightened;

[0027] The corresponding reference numerals in the accompanying drawings are described as follows:

[0028] 1. Laser diameter gauge body; 11. Button; 12. Display screen; 13. Diameter measuring area; 14. Mounting plate; 141. Photoelectric receiving component; 15. First slide groove; 16. Second slide groove; 17. First through hole; 18. Second through hole; 2. Tensioning pulley; 21. First slider; 22. Return spring; 3. Fixed pulley; 4. Clamping pulley; 41. Second slider; 42. Clamping spring; 5. First push rod; 51. First round rod; 6. Second push rod; 61. Second round rod; 7. Stop strip. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 A high-precision handheld laser diameter gauge includes a laser diameter gauge body 1, a button 11 and a display screen 12 provided on the laser diameter gauge body 1, a diameter measuring area 13 provided on the upper end of the laser diameter gauge body 1, a mounting plate 14 provided on one side of the upper end of the laser diameter gauge body 1, a photoelectric receiving component 141 corresponding to the diameter measuring area 13 installed on the mounting plate 14, and a power supply, a main control board, a laser emitter, a scanning mirror, a reflector and a condenser are also provided in the laser diameter gauge body 1. When measuring the diameter of a linear body, the main control board is powered by the power supply, the button 11 controls the laser emitter to emit continuous light through the main board, the light ray passes through the scanning mirror using electrostatic vertical comb teeth to drive the light beam to pass through the reflector and the lens of the diameter measuring area 13 in sequence to form a parallel light beam, and then the condenser focuses the laser light on the linear body through the diameter measuring area 13, and finally the focused light beam is projected onto the receiving component of the photoelectric receiving component 141. The photoelectric receiving component 141 outputs a measurement signal and displays it through the display screen 12, thereby obtaining measurement data;

[0031] The bottom of the laser diameter measuring instrument body 1 is also provided with a charging socket and a switch button (not shown in the figure). The charging socket can be used to charge the laser diameter measuring instrument body 1, so that the laser diameter measuring instrument body 1 can be carried around for use. The switch button controls the power on and off of the laser diameter measuring instrument body 1.

[0032] Preferably, two tension pulleys 2 are provided on the upper end of the laser diameter gauge body 1, on the left and right sides of the photoelectric receiving component 141. A first slider 21 is fixed to the lower end of the tension pulley 2. A first slide groove 15 corresponding to the two first sliders 21 is formed on the upper side surface of the laser diameter gauge body 1, and the first slider 21 is slidably connected to the first slide groove 15. The two tension pulleys 2 are slidably connected to the first slide groove 15 through the first slider 21, so that the upper end of the laser diameter gauge body 1 can be slidably changed.

[0033] The upper end of the laser diameter gauge body 1 is provided with two fixed pulleys 3 located on the opposite side of the two tensioning pulleys 2 and a clamping pulley 4 arranged opposite to the fixed pulleys 3. A second slider 41 is fixed to the lower end of the clamping pulley 4. A second slide groove 16 corresponding to the two second slide blocks 41 is formed on the upper side of the laser diameter gauge body 1, and the second slider 41 is slidably connected to the second slide groove 16. A clamping spring 42 is provided between the side of the second slider 41 away from the fixed pulley 3 and the second slide groove 16. The two fixed pulleys 3 are fixedly mounted on the upper side of the laser diameter gauge body 1 by bolts, and the two clamping pulleys 4 arranged opposite to the two fixed pulleys 3 are slidably connected to the second slide groove 16 by the second slider 41, so that they can slide on the side of the laser diameter gauge body 1 to change the distance with the fixed pulley 3. The clamping spring 42 pushes the second slider 41 so that the initial position of the clamping pulley 4 is in a state of being in contact with the fixed pulley 3.

[0034] Among them, the horizontal positions of the two tensioning pulleys 2 and the clamping pulley 4 are both between the diameter measuring area 13 and the mounting plate 14. When using the laser diameter gauge body 1 to measure the wire diameter, the wire body is laid between the two tensioning pulleys 2 and the fixed pulley 3 and the clamping pulley 4. At this time, the middle section of the wire body and the section where the wire diameter is to be measured are between the diameter measuring area 13 and the mounting plate 14. Figure 5 As shown;

[0035] Furthermore, the overall structure of the tensioning pulley 2, the fixed pulley 3 and the clamping pulley 4 consists of two upper and lower top plates and a rolling wheel in the middle, and the rolling wheel is connected by a rotating shaft at the axis center of the two top plates, so that the rolling wheel can rotate between the two top plates.

[0036] Specifically, when using the laser caliper body 1 to measure the wire diameter, the two clamping pulleys 4 are first slid in the direction away from the fixed pulley 3, so that the measured wire can enter the gap between the fixed pulley 3 and the clamping pulley 4, and then the clamping pulley 4 is loosened, and the clamping pulley 4 and the fixed pulley 3 form a clamping force on the wire through the elastic push of the clamping spring 42. At this time, the two tensioning pulleys 2 are pushed toward the diameter measuring area 13. In the process of the tensioning pulley 2 moving toward the diameter measuring area, the wire will be pulled. Since the wire is clamped by the clamping pulley 4 and the fixed pulley 3, when the tensioning pulley 2 pushes the wire, the two ends of the wire are subjected to the clamping force, resulting in an increase in the pulling force required, thereby tightening the wire section between the two tensioning pulleys 2, and then making the wire in the diameter measuring area 13 in a straight state, avoiding the bent wire from affecting the accuracy of the wire diameter measurement data, and improving the reliability of the measurement data.

[0037] More preferably, a first push rod 5 is provided on the side of the laser diameter gauge body 1 close to the mounting plate 14, and two first round rods 51 are connected to one side of the first push rod 5. The laser diameter gauge body 1 has two first through holes 17 connected to the first slide groove 15 on the side facing the first push rod 5. The two first round rods 51 pass through the first through holes 17 and are connected to the first slider 21. A reset spring 22 is provided between the side of the first slider 21 away from the first round rod 51 and the first slide groove 15. The pushing force of the reset spring 22 on the first slider 21 can make the initial position of the first slider 21 and the tensioning pulley 2 close to the mounting plate 14, that is, at a position staggered from the diameter measuring area 13.

[0038] Specifically, the two first round rods 51 are screwed to the first slider 21 by passing through the first through hole 17, so that when the first push rod 5 is pushed, the two first round rods 51 simultaneously push the two first sliders 21 and the tensioning pulley 2 to move toward the diameter measuring area 13, thereby facilitating pushing the two tensioning pulleys 2 so that the wire body is pushed into the diameter measuring area 13. After the measurement is completed, the first push rod 5 is released. At this time, the reset spring 22 can be used to push the first slider 21 and the tensioning pulley 2 back to their original position, which is convenient for the next measurement.

[0039] Furthermore, a stop bar 7 is provided in the first sliding groove 15 and is opposite to the stop bar 7 . When the first sliding block 21 abuts against the stop bar 7 , the positions of the two tensioning pulleys 2 are aligned with the level of the diameter measuring area 13 .

[0040] Specifically, by using the stop bar 7 provided in the first slide groove 15 , the staff can better control the position to which the two tensioning pulleys 2 push the wire body.

[0041] Furthermore, the first slider 21 is formed with a first mounting hole on one side facing the first round rod 51. One end of the first round rod 51 is screwed to the first mounting hole, and the other end is axially connected to the first push rod 5. This arrangement facilitates installation and removal of the first round rod 51.

[0042] At the same time, the first round rod 51 and the first through hole 17 can also serve to limit the first slider 21 , thereby preventing the first slider 21 from escaping from the first sliding groove 15 .

[0043] Preferably, a second push rod 6 is provided on the side of the laser caliper body 1 away from the mounting plate 14, and two second round rods 61 are connected to one side of the second push rod 6. The laser caliper body 1 has two second through holes 18 connected to the second slide groove 16 on the side facing the second push rod 6, and the two second round rods 61 pass through the second through holes 18 and are connected to the second slider 41.

[0044] Specifically, the two second round rods 61 are screwed to the second slider 41 by passing through the second through hole 18, so that when the second push rod 6 is pushed, the two second round rods 61 simultaneously push the two second sliders 41 and the clamping pulley 4 to move away from the fixed pulley 3, thereby more conveniently moving the position of the clamping pulley 4. After the wire body is placed between the fixed pulley 3 and the clamping pulley 4, the second push rod 6 is released, and the clamping spring 42 is used to push the second slider 41 and the clamping pulley 4 toward the fixed pulley 3, thereby generating a clamping force on the wire body.

[0045] More preferably, the second slider 41 is formed with second mounting holes on both sides of the second round rod 61, and the two ends of the second round rod 61 are screwed to the second mounting holes, and the other two ends are axially connected to the second push rod 6. This arrangement can facilitate the installation and removal of the second round rod 61;

[0046] At the same time, the second round rod 61 and the second through hole 18 can also serve to limit the second slider 41 , thereby preventing the second slider 41 from escaping from the second sliding groove 16 .

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A high-precision handheld laser diameter measuring instrument, characterized in that: The laser diameter measuring instrument comprises a body (1), the body (1) being provided with a button (11) and a display screen (12), the upper end of the body (1) being provided with a diameter measuring area (13), a mounting plate (14) being provided on one side of the upper end of the body (1), and a photoelectric receiving component (141) corresponding to the diameter measuring area (13) being mounted on the mounting plate (14); The upper end of the laser diameter measuring instrument body (1) is provided with two tensioning pulleys (2) on the left and right sides of the photoelectric receiving component (141), and the lower end of the tensioning pulley (2) is fixedly provided with a first slider (21). The upper side surface of the laser diameter measuring instrument body (1) is formed with a first slide groove (15) corresponding to the two first sliders (21), and the first slider (21) is slidably connected to the first slide groove (15); The upper end of the laser diameter measuring instrument body (1) is provided with two fixed pulleys (3) respectively located on the opposite side of the two tensioning pulleys (2) and a clamping pulley (4) arranged opposite to the fixed pulleys (3); the lower end of the clamping pulley (4) is fixed with a second slider (41); the upper side surface of the laser diameter measuring instrument body (1) is formed with a second slide groove (16) corresponding to the two second sliders (41), and the second slider (41) is slidably connected to the second slide groove (16); a clamping spring (42) is provided between the side of the second slider (41) away from the fixed pulley (3) and the second slide groove (16); The horizontal positions of the two tensioning pulleys (2) and the clamping pulley (4) are both between the diameter measuring area (13) and the mounting plate (14).

2. The high-precision handheld laser diameter measuring instrument according to claim 1, characterized in that: The laser caliper body (1) is provided with a first push rod (5) on one side close to the mounting plate (14), and two first round rods (51) are connected to one side of the first push rod (5). The laser caliper body (1) is provided with two first through holes (17) connected to the first slide groove (15) on the side facing the first push rod (5), and the two first round rods (51) pass through the first through holes (17) and are connected to the first slider (21).

3. The high-precision handheld laser diameter measuring instrument according to claim 2, characterized in that: A return spring (22) is provided between a side surface of the first sliding block (21) away from the first round rod (51) and the first sliding groove (15).

4. The high-precision handheld laser diameter measuring instrument according to claim 1, characterized in that: A second push rod (6) is provided on the side of the laser caliper body (1) away from the mounting plate (14), and two second round rods (61) are connected to one side of the second push rod (6). Two second through holes (18) connected to the second slide groove (16) are provided on the side of the laser caliper body (1) facing the second push rod (6), and the two second round rods (61) pass through the second through holes (18) and are connected to the second slider (41).

5. The high-precision handheld laser diameter measuring instrument according to claim 3, characterized in that: A stop bar (7) is provided in the first sliding groove (15) and is arranged opposite to each other. When the first sliding block (21) abuts against the stop bar (7), the positions of the two tensioning pulleys (2) are aligned with the level of the diameter measuring area (13).

6. The high-precision handheld laser diameter measuring instrument according to claim 3, characterized in that: A first mounting hole is formed on one side of the first sliding block (21) facing the first round rod (51); one end of the first round rod (51) is screwed to the first mounting hole, and the other end is axially connected to the first push rod (5).

7. The high-precision handheld laser diameter measuring instrument according to claim 4, characterized in that: The second sliding block (41) is formed with second mounting holes on both sides of the second round rod (61); two ends of the second round rod (61) are screwed to the second mounting holes, and the other two ends are axially connected to the second push rod (6).

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