A magnetic rail straightness measuring device and a measuring method thereof

Abstract

The present invention relates to the field of straightness measurement, and specifically to a magnetic rail straightness measuring device and a measuring method thereof, including a fixed clamping end and a movable clamping end, the fixed clamping end and the movable clamping end cooperate with each other; a telescopic protective member, arranged between the fixed clamping end and the movable clamping end; and two supporting crossbeams, respectively located inside the fixed clamping end and the movable clamping end. The present invention has a wide range of applications and is convenient for light blocking through the first adjusting side plate and the telescopic protective member, and can prevent dust from falling on the detection position to affect the detection result, and is convenient for storage. The supporting crossbeam and the clamping assembly facilitate stable clamping, and the magnetic slide rail and the sliding detection assembly facilitate adjustment of the detection angle and position, so as to solve the problems in the prior art of inconvenience in adjusting the detection direction, incomplete detection, inability to accurately control the position, and inconvenience in protection.

Description

Technical Field

[0001] The invention relates to the field of flatness measurement, and in particular to a magnetic rail flatness measuring device and a measuring method thereof. Background Art

[0002] In the rail transit industry, seamless rails are increasingly used in high-speed and heavy-load railway lines. Seamless rails refer to rails welded together through a welding process. Compared with traditional seamed rails, they effectively improve the safety, stability and comfort of train operation. In order to evaluate the welding quality of seamless rails, the rail welding process requires that after the welding and subsequent grinding processes are completed, the relevant railway departments should use special instruments to check whether the straightness of the rail welding parts meets the acceptance standards. By collecting and analyzing the rail straightness data, it is possible to evaluate the rail welding quality, conduct daily operation and maintenance inspections, and guide the subsequent grinding of rails to ensure the safe operation of trains.

[0003] After searching, Chinese patent CN215296169U discloses a self-driven rail straightness measuring instrument, which uses a stepper motor to drive a gear rack transmission to achieve movement, but the meshing clearance of the gear rack makes it impossible to accurately control the position in frequent reciprocating motion; and the Chinese invention patent application with publication number CN117213405A belongs to the field of rail transportation technology, providing a magnetic rail straightness measuring instrument, the detection module includes a micron-level distance sensor, and the micron-level distance sensor detects the straightness of the surface of the rail under the drive of the driving component; the grating ruler positioning member, the grating ruler positioning member is arranged between the detection module and the inner wall of the main cavity of the instrument, and the grating ruler positioning member is used to improve the positioning accuracy of the driving component when it moves. The present invention saves manpower, optimizes detection efficiency, and improves detection accuracy. At the same time, it can also adapt to certain extreme climate environments such as rain, snow, and low temperature, but it can only detect one side of the rail at a time, which is not convenient for adjusting the detection direction and the detection is not comprehensive.

[0004] Therefore, it is necessary to invent a magnetic rail straightness measuring device and a measuring method thereof to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a magnetic rail straightness measuring device and a measuring method thereof. Through the first adjusting side plate and the telescopic protective member, the device has a wide range of applications and is convenient for light blocking. At the same time, dust can be prevented from falling on the detection position to affect the detection result, and the device is convenient for storage. Through the supporting crossbeam and the clamping assembly, the device is convenient for stable clamping. Through the magnetic slide rail and the sliding detection assembly, the detection angle and position are convenient for adjusting, so as to solve the problems in the prior art of being inconvenient to adjust the detection direction, incomplete detection, inability to accurately control the position, and inconvenient protection.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a magnetic rail straightness measuring device, comprising

[0007] A fixed clamping end and a movable clamping end, wherein the fixed clamping end and the movable clamping end cooperate with each other;

[0008] A telescopic protective member is arranged between the fixed clamping end and the movable clamping end;

[0009] Two supporting cross beams are provided, and are respectively located inside the fixed clamping end and the movable clamping end;

[0010] There are two clamping assemblies, which are used in conjunction with the supporting crossbeams to clamp the rails;

[0011] A magnetic slide rail is arranged on one side of the fixed clamping end and slides on the movable clamping end;

[0012] The slip detection component is arranged on the outer side of the magnetic attraction slide rail and is slidably connected to the magnetic attraction slide rail for detecting the rail.

[0013] As a preferred solution of the present invention, the fixed clamping end includes a fixed U-shaped frame, support side panels are provided on both sides of the bottom of the fixed U-shaped frame, a movable groove is opened inside the support side panel, the outer side of the fixed U-shaped frame is detachably connected to a first protective plate by screws, a first sliding groove is provided on the outer side of the first protective plate, the first sliding groove is slidably connected to a first adjustment side panel inside, and a first soft brush is fixedly connected to the bottom of the first adjustment side panel.

[0014] As a preferred solution of the present invention, the movable clamping end includes a movable U-shaped frame with the same shape as the fixed U-shaped frame, the outer side of the movable U-shaped frame is detachably connected to a second protective plate by screws, the outer side of the second protective plate is provided with a second sliding groove, the interior of the second sliding groove is slidably connected to a second adjustment side plate, the bottom of the second adjustment side plate is fixedly connected to a second soft brush, the interior of the second protective plate is provided with a through groove, and the interior of the second adjustment side plate is provided with a matching groove.

[0015] As a preferred solution of the present invention, the inner side of the fixed U-shaped frame is fixedly connected to an outer plug plate, the inner side of the movable U-shaped frame is fixedly connected to an inner plug plate, the size of the inner plug plate is smaller than that of the outer plug plate, and is slidably connected to the outer plug plate, the end of the inner plug plate is fixedly connected to an accordion cover plate, the other end of the accordion cover plate is fixedly connected to the inner side of the fixed U-shaped frame, and the accordion cover plate is located inside the outer plug plate.

[0016] As a preferred solution of the present invention, the supporting beam includes a beam frame, anti-collision blocks are inserted at both ends of the beam frame, a movable slide rail is provided on the outer side of the beam frame, a fixed seat is fixedly connected to the middle position of the beam frame, a limiting slider is fixedly connected to the top of the fixed seat, a reflective block is fixedly installed on the inner side of the fixed seat, and limiting slide rods are fixedly connected to the inner ends of the fixed seat, a bidirectional electric telescopic rod is installed inside the fixed seat, and the two output ends of the electric telescopic rod are respectively fixedly connected to the clamping assembly.

[0017] As a preferred solution of the present invention, each group of the clamping assembly includes two clamping limit blocks, the two clamping limit blocks are respectively located at two ends of the beam frame, a movable slide groove is opened on the inner side of the clamping limit block, a cleaning block is fixedly connected to the side of the movable slide groove, a connecting rod is fixedly connected to the inner side of the clamping limit block, a limiting slide groove is opened on the inner side of the connecting rod, the limiting slide groove cooperates with the limiting sliding block, the outer side of the clamping limit block is detachably connected to the clamping block by installing screws, a weight reduction groove is opened inside the clamping block, and the clamping limit block is slidably connected to the movable groove.

[0018] As a preferred solution of the present invention, the magnetic slide rail includes a detection slide rail, a detection slide groove is opened on the outer side of the detection slide rail, the detection slide rail is hollow, and the inside of the detection slide rail is slidably connected to the stator base, and a plurality of magnetic blocks are clamped on the top of the stator base. Anti-drop blocks are inserted at both ends of the detection slide rail, one of the anti-drop blocks is fixedly connected to the beam frame close to the fixed U-shaped frame, and the detection slide rail is slidably connected to the beam frame close to the movable U-shaped frame.

[0019] As a preferred solution of the present invention, the slip detection assembly includes a movable slider, a sliding square groove matching the detection slide rail is provided inside the movable slider, micron-level distance measuring sensors are arranged on both sides of the movable slider, a through hole is provided inside the movable slider, the through hole is slidably connected to the limit slide bar, a U-shaped detection frame is fixedly connected to the bottom of the movable slider, tooth blocks are fixedly connected to both sides of the U-shaped detection frame, an inner measuring ring groove is provided on the inner side of the U-shaped detection frame, an empty groove is provided on the inner side of the movable slider, a walking block is movably connected to the inside of the U-shaped detection frame, a folding frame is fixedly connected to the top of the walking block, the folding frame is slidably connected to the empty groove, a motor is installed inside the walking block, a gear is fixedly connected to the output end of the motor, the gear is meshed with the gear block, sliding grooves are provided on both sides of the U-shaped detection frame, a laser rangefinder is fixedly installed on the bottom of the walking block, and the laser rangefinder passes through the inner measuring ring groove and is slidably connected to the inner measuring ring groove.

[0020] A magnetic rail straightness measurement method includes the magnetic rail straightness measurement device as described above, and the specific steps are as follows:

[0021] Step 1: Preparation: clean the detection part and clamping assembly of the rail, and place the whole device on the top of the rail, where the two clamping limit blocks inside each set of clamping assemblies are located on both sides of the rail;

[0022] Step 2: Adjust the work, manually pull the movable clamping end according to the length of the test, so that the test position is located between the fixed clamping end and the movable clamping end and is covered by the telescopic protective piece;

[0023] Step 3: Clamp and fix. Start the electric telescopic rod so that it pulls the clamping limit blocks on both sides to retract inward. The clamping limit blocks drive the movable slide groove to slide on the outside of the beam frame, so that the two clamping blocks are close to each other to fix the rail.

[0024] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0025] The user can manually pull the first adjustment side plate according to the height of the rail so that the first soft brush contacts the rail, wherein a magnetic attraction member is provided between the first adjustment side plate and the first slide slot, so as to magnetically fix the position of the first adjustment side plate, wherein the first soft brush can prevent dust from entering and can prevent direct contact from causing friction damage to the rail when placed;

[0026] Manually pull the movable clamping end according to the length of the detection position, so that the movable clamping end slides on the outside of the detection slide rail, thereby adjusting the distance between the fixed U-shaped frame and the supporting side plate, so that the detection position is covered by the telescopic protective piece, which has a wide range of applications and is convenient for light blocking. At the same time, it can prevent dust from falling on the detection position and affecting the detection results. When idle, the user can snap-connect the fixed U-shaped frame and the supporting side plate, so that the telescopic protective piece is hidden inside the fixed U-shaped frame and the supporting side plate, thereby storing the device and protecting the internal detection parts;

[0027] The electric telescopic rod drives the two clamping limit blocks to approach each other to clamp and fix the rails. The connecting rod arranged on the inner side of the clamping limit block is slidably connected with the limit slider, so as to limit the clamping block. The clamping block is detachably connected with the clamping limit block by mounting screws, so that the clamping block can be adaptively replaced according to the shape of the rail. The weight-reducing groove on the side of the clamping block can reduce the weight of the clamping block. The clamping block is slidably connected with the movable U-shaped frame or the fixed U-shaped frame, so as to block the gaps on both sides of the detection part. The use of the telescopic protective piece can prevent dust from entering and prevent external factors from affecting the internal detection.

[0028] The detection slide rail is slidably connected to the beam frame close to the movable U-shaped frame. The movable slider drives the movable slider to move along the detection slide rail under the cross-action of the attraction and repulsion of the uniform magnetic field generated by the N-pole permanent magnet and the S-pole permanent magnet, thereby reducing the resistance of sliding detection and facilitating the precise control of the detection position. By starting the motor, the walking block and the folding frame slide inside the U-shaped detection frame. Since the U-shaped detection frame is set to a U shape and cooperates with the rail, the top or side of the rail can be detected according to the position of the laser rangefinder, thereby expanding the detection range and facilitating improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic diagram of the overall installation structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall shrinkage structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the connection structure between the fixed clamping end and the movable clamping end of the present invention;

[0033] Figure 4 It is a schematic diagram of the fixed clamping end structure of the present invention;

[0034] Figure 5 It is a schematic diagram of the connection structure between the fixed clamping end and the supporting beam of the present invention;

[0035] Figure 6 It is a schematic diagram of the connection structure between the support beam and the clamping assembly of the present invention;

[0036] Figure 7 It is a schematic diagram of the exploded structure of the movable clamping end of the present invention;

[0037] Figure 8 It is a schematic diagram of the supporting beam structure of the present invention;

[0038] Fig. 9 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0039] Fig.10 It is a schematic diagram of the structure of the magnetic slide rail of the present invention;

[0040] Fig.11 It is a schematic diagram of the connection structure between the stator base and the magnetic attraction block of the present invention;

[0041] Fig.12 It is a schematic diagram of the structure of the slip detection assembly of the present invention;

[0042] Fig.13 It is a schematic diagram of the cross-sectional structure of the slip detection assembly of the present invention;

[0043] Fig.14 For the present invention Fig.13 Enlarged structural diagram at A in the middle.

[0044] Description of reference numerals:

[0045] 001, fixed clamping end; 002, movable clamping end; 003, telescopic protective part; 004, supporting beam; 005, clamping assembly; 006, magnetic slide rail; 007, slip detection assembly;

[0046] 101, fixed U-shaped frame; 102, supporting side plate; 103, movable groove; 104, first protective plate; 105, first slide groove; 106, first adjustment side plate; 107, first soft brush;

[0047] 201, movable U-shaped frame; 202, second protective plate; 203, second slide groove; 204, second adjustment side plate; 205, second soft brush; 206, through groove; 207, matching groove;

[0048] 301, outer plug board; 302, inner plug board; 303, accordion cover board;

[0049] 401, beam frame; 402, movable slide rail; 403, anti-collision block; 404, fixed seat; 405, limit slider; 406, reflective block; 407, limit slider; 408, telescopic rod;

[0050] 501, clamping limit block; 502, movable slide; 503, cleaning block; 504, connecting rod; 505, limit slide; 506, clamping block; 507, mounting screw; 508, weight reduction groove;

[0051] 601, detection slide rail; 602, detection slide slot; 603, stator base; 604, magnetic block; 605, anti-drop block;

[0052] 701, moving block; 702, sliding square groove; 703, micrometer-level distance sensor; 704, through hole; 705, U-shaped detection frame; 706, tooth block; 707, inner ring groove; 708, empty groove; 709, walking block; 710, folding frame; 711, gear; 712, laser distance meter; 713, sliding groove;

[0053] 008. Rails. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0055] The present invention provides Figure 1-14 A magnetic rail straightness measuring device shown in the figure includes a fixed clamping end 001 and a movable clamping end 002, which cooperate with each other; a telescopic protective member 003, which is arranged between the fixed clamping end 001 and the movable clamping end 002; two supporting beams 004, which are respectively located inside the fixed clamping end 001 and the movable clamping end 002; two clamping assemblies 005, which are respectively used in conjunction with the supporting beams 004 to clamp the rail 008; a magnetic slide rail 006, which is arranged on one side of the fixed clamping end 001 and slides on the movable clamping end 002; a slip detection assembly 007, which is arranged on the outside of the magnetic slide rail 006 and is slidably connected to the magnetic slide rail 006, and is used to detect the rail 008.

[0056] As a further optimization of the present invention, the fixed clamping end 001 includes a fixed U-shaped frame 101, and support side plates 102 are arranged on both sides of the bottom of the fixed U-shaped frame 101. A movable groove 103 is opened inside the support side plate 102. The outer side of the fixed U-shaped frame 101 is detachably connected to a first protective plate 104 by screws, and a first slide groove 105 is arranged on the outer side of the first protective plate 104. The first slide groove 105 is slidably connected to a first adjustment side plate 106 inside, and a first soft brush 107 is fixedly connected to the bottom of the first adjustment side plate 106;

[0057] After the device is fixed on the outside of the rail 008, the user can manually pull the first adjustment side plate 106 according to the height of the rail, so that the first soft brush 107 contacts the rail, wherein a magnetic attraction part is provided between the first adjustment side plate 106 and the first slide groove 105, so as to fix the position of the first adjustment side plate 106 by magnetic attraction, wherein the first soft brush 107 can prevent dust from entering and can prevent direct contact from causing friction damage to the rail when placed.

[0058] The movable clamping end 002 includes a movable U-shaped frame 201 having the same shape as the fixed U-shaped frame 101, and a second protective plate 202 is detachably connected to the outer side of the movable U-shaped frame 201 through screws, a second slide groove 203 is provided on the outer side of the second protective plate 202, a second adjustment side plate 204 is slidably connected to the inside of the second slide groove 203, a second soft brush 205 is fixedly connected to the bottom of the second adjustment side plate 204, a through groove 206 is provided inside the second protective plate 202, and a matching groove 207 is provided inside the second adjustment side plate 204;

[0059] The second adjustment side plate 204 operates in the same manner as the first adjustment side plate 106, wherein the through slot 206 is slidably connected to the detection slide rail 601, and the detection slide rail 601 can pass through the through slot 206 and the matching slot 207, wherein the length of the matching slot 207 is greater than the length of the through slot 206, so that the second adjustment side plate 204 does not interfere with the detection slide rail 601 when it is slidably connected to the second protective plate 202.

[0060] In the above structure, the inner side of the fixed U-shaped frame 101 is fixedly connected with the outer plug board 301, and the inner side of the movable U-shaped frame 201 is fixedly connected with the inner plug board 302. The size of the inner plug board 302 is smaller than that of the outer plug board 301, and is slidably connected with the outer plug board 301. The end of the inner plug board 302 is fixedly connected with the accordion cover plate 303, and the other end of the accordion cover plate 303 is fixedly connected with the inner side of the fixed U-shaped frame 101, and the accordion cover plate 303 is located inside the outer plug board 301.

[0061] The movable clamping end 002 can be manually pulled according to the length of the detection position, so that the movable clamping end 002 slides on the outside of the detection slide rail 601, thereby adjusting the distance between the fixed U-shaped frame 101 and the supporting side plate 102, so that the detection position is located between the fixed clamping end 001 and the movable clamping end 002, and is covered by the telescopic protective member 003. It has a wide range of applications and is convenient for blocking light. At the same time, it can prevent dust from falling on the detection position and affecting the detection results, and can safely protect the detection device. When idle, the user can snap the fixed U-shaped frame 101 and the supporting side plate 102 together, so that the telescopic protective member 003 is hidden inside the fixed U-shaped frame 101 and the supporting side plate 102, thereby storing the device and protecting the internal detection parts.

[0062] Among them, the supporting beam 004 includes a beam frame 401, both ends of the beam frame 401 are plugged with anti-collision blocks 403, the outer side of the beam frame 401 is provided with a movable slide rail 402, the middle position of the beam frame 401 is fixedly connected with a fixed seat 404, the top of the fixed seat 404 is fixedly connected with a limiting slider 405, the inner side of the fixed seat 404 is fixedly installed with a reflective block 406, the inner ends of the fixed seat 404 close to the fixed U-shaped frame 101 are fixedly connected with a limiting slide bar 407, the fixed seat 404 close to the movable U-shaped frame 201 is slidably connected with the limiting slide bar 407, a two-way electric telescopic rod is installed inside the fixed seat 404, and the two output ends of the electric telescopic rod are provided with a telescopic rod 408, and the telescopic rod 408 is respectively fixedly connected to the clamping assembly 005; wherein the anti-collision blocks 403 at the ends of the two beam frames 401 are respectively fixedly connected to the fixed U-shaped frame 101 and the movable U-shaped frame 201 by screws. Further, each group of clamping components 005 includes two clamping limit blocks 501, which are respectively located at the two ends of the beam frame 401, and a movable slide groove 502 is provided on the inner side of the clamping limit block 501, and a cleaning block 503 is fixedly connected to the side of the movable slide groove 502, and a connecting rod 504 is fixedly connected to the inner side of the clamping limit block 501, and a limiting slide groove 505 is provided on the inner side of the connecting rod 504, and the limiting slide groove 505 cooperates with the limiting slider 405, and a clamping block 506 is detachably connected to the outer side of the clamping limit block 501 by installing screws 507, and a weight reduction groove 508 is provided inside the clamping block 506, and the clamping limit block 501 is slidably connected to the movable groove 103;

[0063] The two clamping limit blocks 501 are driven by the electric telescopic rod to approach each other to clamp the rail, and the clamping limit block 501 drives the movable slide groove 502 to slide on the inner side of the movable slide rail 402, so as to limit the clamping limit block 501, wherein the connecting rod 504 arranged on the inner side of the clamping limit block 501 is slidably connected with the limit slider 405, so as to further limit the clamping block 506, wherein the clamping block 506 is detachably connected to the clamping limit block 501 by installing screws 507, so that the clamping block 506 can be adaptively replaced according to the shape of the rail, and the weight reduction groove 508 on the side of the clamping block 506 can reduce the weight of the clamping block 506, wherein the clamping block 506 is slidably connected with the movable U-shaped frame 201 or the fixed U-shaped frame 101, so as to block the gaps on both sides of the detection part, and the use of the telescopic protective member 003 can prevent dust from entering and prevent external factors from affecting internal detection.

[0064] Among them, the magnetic slide rail 006 includes a detection slide rail 601, a detection slide groove 602 is opened on the outer side of the detection slide rail 601, the detection slide rail 601 is hollow, and the internal sliding connection of the detection slide rail 601 is connected to a stator base 603, and a plurality of magnetic blocks 604 are clamped on the top of the stator base 603, and the plurality of magnetic blocks 604 are staggered as N-pole permanent magnets and S-pole permanent magnets. Anti-drop blocks 605 are inserted at both ends of the detection slide rail 601, and one of the anti-drop blocks 605 is fixedly connected to the beam frame 401 close to the fixed U-shaped frame 101, and the detection slide rail 601 is slidably connected to the beam frame 401 close to the movable U-shaped frame 201. The movable slider 701 is driven by the cross action of the attraction and repulsion of the uniform magnetic field generated by the N-pole permanent magnet and the S-pole permanent magnet to move along the detection slide rail 601, thereby reducing the resistance of sliding detection and facilitating the precise control of the detection position.

[0065] As a further optimization of the present invention, the slip detection component 007 includes a movable slider 701, the movable slider 701 is provided with a sliding square groove 702 matched with the detection slide rail 601, both sides of the movable slider 701 are provided with micrometer-level distance measuring sensors 703, the micrometer-level distance measuring sensors 703 determine the detection position by detecting the distance between it and the reflective block 406, the movable slider 701 is provided with a through hole 704, the through hole 704 is slidably connected to the limit slide bar 407, the bottom of the movable slider 701 is fixedly connected to a U-shaped detection frame 705, both sides of the U-shaped detection frame 705 are fixedly connected to tooth blocks 706, and the U-shaped detection frame 7 An inner measuring annular groove 707 is provided on the inner side of the movable slider 701, an empty groove 708 is provided on the inner side of the U-shaped detection frame 705, a walking block 709 is movably connected inside, a folding frame 710 is fixedly connected to the top of the walking block 709, and the folding frame 710 is slidably connected to the empty groove 708, a motor is installed inside the walking block 709, a gear 711 is fixedly connected to the output end of the motor, and the gear 711 is meshedly connected to the gear block 706, sliding grooves 713 are provided on both sides of the U-shaped detection frame 705, and a laser rangefinder 712 is fixedly installed on the bottom of the walking block 709, and the laser rangefinder 712 passes through the inner measuring annular groove 707 and is slidably connected to the inner measuring annular groove 707;

[0066] By starting the motor, the motor drives the gear 711 to rotate and the gear 711 is meshed with the tooth block 706, so that the walking block 709 and the folding frame 710 slide inside the U-shaped detection frame 705, wherein the laser rangefinder 712 slides inside the inner measuring ring groove 707. Since the U-shaped detection frame 705 is set to be U-shaped and cooperates with the rail, the top or side of the rail can be detected according to the position of the laser rangefinder 712, thereby expanding the detection range and helping to improve the accuracy of the detection.

[0067] A magnetic rail straightness measurement method includes the magnetic rail straightness measurement device as described above, and the specific steps are as follows:

[0068] Step 1: Preparation: clean the detection part of the rail 008 and the clamping assembly 005, and place the entire device on the top of the rail 008, wherein the two clamping limit blocks 501 inside each set of clamping assemblies 005 are respectively located on both sides of the rail 008;

[0069] Step 2: Adjustment work, manually pull the movable clamping end 002 according to the length of the test, so that the test position is located between the fixed clamping end 001 and the movable clamping end 002, and is covered by the telescopic protective member 003;

[0070] Step 3: Clamping and fixing. By starting the electric telescopic rod, the electric telescopic rod pulls the clamping limit blocks 501 on both sides to retract inward, and the clamping limit blocks 501 drive the movable slide groove 502 to slide on the outside of the beam frame 401, so that the two clamping blocks 506 are close to each other to fix the rail 008.

[0071] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A magnetic rail straightness measuring device, characterized in that: include A fixed clamping end (001) and a movable clamping end (002), wherein the fixed clamping end (001) and the movable clamping end (002) cooperate with each other; A telescopic protective member (003) is arranged between the fixed clamping end (001) and the movable clamping end (002); Two supporting cross beams (004) are provided, and are respectively located inside the fixed clamping end (001) and the movable clamping end (002); Two clamping assemblies (005) are provided, and are used in conjunction with the supporting crossbeam (004) to clamp the rail (008); A magnetic slide rail (006) is arranged on one side of the fixed clamping end (001) and slides on the movable clamping end (002); A slip detection component (007) is arranged on the outside of the magnetic slide rail (006) and is slidably connected to the magnetic slide rail (006) for detecting the rail (008); The fixed clamping end (001) comprises a fixed U-shaped frame (101), support side plates (102) are arranged on both sides of the bottom of the fixed U-shaped frame (101), a movable groove (103) is provided inside the support side plate (102), the outer side of the fixed U-shaped frame (101) is detachably connected to a first protective plate (104) by screws, the outer side of the first protective plate (104) is provided with a first sliding groove (105), the interior of the first sliding groove (105) is slidably connected to a first adjustment side plate (106), and the bottom of the first adjustment side plate (106) is fixedly connected to a first soft brush (107); The movable clamping end (002) comprises a movable U-shaped frame (201) of the same shape as the fixed U-shaped frame (101); the outer side of the movable U-shaped frame (201) is detachably connected to a second protective plate (202) via screws; the outer side of the second protective plate (202) is provided with a second sliding groove (203); the interior of the second sliding groove (203) is slidably connected to a second adjustment side plate (204); the bottom of the second adjustment side plate (204) is fixedly connected to a second soft brush (205); the interior of the second protective plate (202) is provided with a through groove (206); the interior of the second adjustment side plate (204) is provided with a matching groove (207); The inner side of the fixed U-shaped frame (101) is fixedly connected to an outer plug plate (301), the inner side of the movable U-shaped frame (201) is fixedly connected to an inner plug plate (302), the size of the inner plug plate (302) is smaller than the size of the outer plug plate (301), and is slidably connected to the outer plug plate (301), the end of the inner plug plate (302) is fixedly connected to an accordion cover plate (303), the other end of the accordion cover plate (303) is fixedly connected to the inner side of the fixed U-shaped frame (101), and the accordion cover plate (303) is located inside the outer plug plate (301); The magnetic attraction slide rail (006) comprises a detection slide rail (601), the outer side of the detection slide rail (601) is provided with a detection slide groove (602), the detection slide rail (601) is hollow, and the inside of the detection slide rail (601) is slidably connected to a stator base (603), the top of the stator base (603) is clamped with a plurality of magnetic attraction blocks (604), and both ends of the detection slide rail (601) are plugged with anti-drop blocks (605), one of the anti-drop blocks (605) is fixedly connected to a beam frame (401) close to the fixed U-shaped frame (101), and the detection slide rail (601) is slidably connected to the beam frame (401) close to the movable U-shaped frame (201); The slip detection assembly (007) comprises a movable slider (701), the movable slider (701) is provided with a sliding square groove (702) matched with the detection slide rail (601) inside, micrometer-level distance measuring sensors (703) are arranged on both sides of the movable slider (701), a through hole (704) is arranged inside the movable slider (701), and the through hole (704) is slidably connected to the limit slide bar (407), the bottom of the movable slider (701) is fixedly connected with a U-shaped detection frame (705), the two sides of the U-shaped detection frame (705) are fixedly connected with tooth blocks (706), the inner side of the U-shaped detection frame (705) is provided with an inner measuring ring groove (707), the inner side of the movable slider (701) is provided with a through hole (704) and the through hole (704) is slidably connected to the limit slide bar (407), the bottom of the movable slider (701) is fixedly connected with a U-shaped detection frame (705), the two sides of the U-shaped detection frame (705) are fixedly connected with tooth blocks (706), the inner side of the U-shaped detection frame (705) is provided with an inner measuring ring groove (707), and the inner side of the movable slider (701) is provided with a through hole (704). A hollow groove (708) is provided on the side of the U-shaped detection frame (705); a walking block (709) is movably connected inside the U-shaped detection frame (705); a folding frame (710) is fixedly connected to the top of the walking block (709); the folding frame (710) is slidably connected to the hollow groove (708); a motor is installed inside the walking block (709); a gear (711) is fixedly connected to the output end of the motor; the gear (711) is meshedly connected to the gear block (706); sliding grooves (713) are provided on both sides of the U-shaped detection frame (705); a laser rangefinder (712) is fixedly installed at the bottom of the walking block (709); the laser rangefinder (712) passes through the inner measuring ring groove (707) and is slidably connected to the inner measuring ring groove (707).

2. The magnetic rail straightness measuring device according to claim 1, characterized in that: The supporting crossbeam (004) comprises a beam frame (401), anti-collision blocks (403) are inserted at both ends of the beam frame (401), a movable slide rail (402) is provided on the outer side of the beam frame (401), a fixed seat (404) is fixedly connected to the middle position of the beam frame (401), a limiting slider (405) is fixedly connected to the top of the fixed seat (404), a reflective block (406) is fixedly installed on the inner side of the fixed seat (404), and limiting sliders (407) are fixedly connected to the inner ends of the fixed seat (404), and a bidirectional electric telescopic rod is installed inside the fixed seat (404), and two output ends of the electric telescopic rod are respectively fixedly connected to the clamping assembly (005).

3. The magnetic rail straightness measuring device according to claim 1, characterized in that: Each group of the clamping assembly (005) includes two clamping limit blocks (501), and the two clamping limit blocks (501) are respectively located at the two ends of the beam frame (401). A movable slide groove (502) is provided on the inner side of the clamping limit block (501), and a cleaning block (503) is fixedly connected to the side of the movable slide groove (502). A connecting rod (504) is fixedly connected to the inner side of the clamping limit block (501), and a limiting slide groove (505) is provided on the inner side of the connecting rod (504). The limiting slide groove (505) cooperates with the limiting slider (405). The outer side of the clamping limit block (501) is detachably connected to a clamping block (506) by installing screws (507), and a weight reduction groove (508) is provided inside the clamping block (506). The clamping limit block (501) is slidably connected to the movable groove (103).

4. A magnetic rail straightness measurement method, according to a magnetic rail straightness measurement device according to any one of claims 1 to 3, characterized in that: The specific steps are as follows: Step 1: Preparation: clean the detection part and the clamping assembly (005) of the rail (008), and place the entire device on the top of the rail (008), wherein the two clamping limit blocks (501) inside each set of clamping assemblies (005) are respectively located on both sides of the rail (008); Step 2: Adjustment work, manually pull the movable clamping end (002) according to the length of the test, so that the test position is located between the fixed clamping end (001) and the movable clamping end (002), and is covered by the telescopic protective piece (003); Step 3: Clamping and fixing, by starting the electric telescopic rod, so that the electric telescopic rod pulls the clamping limit blocks (501) on both sides to retract inward, and the clamping limit blocks (501) drive the movable slide groove (502) to slide on the outside of the beam frame (401), so that the two clamping blocks (506) are close to each other, thereby fixing and clamping the rail (008); Step 4: Direction adjustment, start the motor to drive the gear (711) to rotate, the gear (711) meshes with the tooth block (706), so that the folding frame (710) slides inside the empty slot (708), thereby driving the laser rangefinder (712) to move, so that the laser rangefinder (712) moves to the direction of the position to be detected; Step 5: Straightness detection, start the laser rangefinder (712) so that the laser rangefinder (712) detects the distance between the rail (008) and the laser rangefinder (712), and at the same time, drive the sliding detection component (007) to move outside the magnetic slide rail (006) through the magnetic slide rail (006), so as to detect different positions of the rail (008).

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