A linear guide rail flatness detection device

Abstract

The application belongs to the field of linear guide rail detection, and particularly relates to a linear guide rail flatness detection device, which comprises a detection table, the top end of the detection table is provided with a detection guide rail, the top end of the detection table is provided with a detection mechanism, the detection mechanism is used for detecting the flatness of the detection guide rail, the detection mechanism comprises a moving assembly, a height adjusting assembly, an adapting assembly, a fixing assembly and a precision adjusting assembly, the moving assembly comprises a sliding rail and a sliding block, the sliding rail is fixedly connected to the top end of the detection table, the sliding block is slidably connected to the outer side of the sliding rail, the top end of the moving assembly is provided with a laser emission module, the height adjusting assembly is arranged between the laser emission module and the moving assembly, the rear side of the moving assembly is provided with the adapting assembly, the top end of the adapting assembly is fixedly connected with a laser receiving module, and the front end of the laser receiving module is provided with the precision adjusting assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of linear guide rail detection, and particularly relates to a linear guide rail flatness detection device. BACKGROUND

[0002] Linear guide rail is also called linear rail, slide rail, linear guide rail and linear slide rail, which is used in high-precision or high-speed linear reciprocating motion occasions and can bear a certain torque. The linear guide rail can realize high-precision linear motion under high load. In order to avoid the situation that the slider on the outer side of the linear guide rail is stuck during movement, the linear guide rail has a high requirement on the flatness of the top surface. Special equipment is usually used to detect the flatness of the linear guide rail before leaving the factory.

[0003] The existing linear guide rail flatness detection device can refer to the Chinese patent with the publication number CN100573031C, which discloses a guide rail straightness detection device in detail. The device comprises a work platform, a bottom positioning element, a side positioning element and a lifting movable top are arranged on the work platform. The bottom positioning element and the side positioning element each include at least two along the length direction of the work platform. A linear rail is installed on one side of the work platform along the length direction of the work platform. A moving table seat is slidably arranged on the linear rail. A measuring device is installed on the moving table seat. The present application sets a linear rail parallel to the working surface of the guide rail to be detected on the work platform. The moving measuring device slides along the linear rail to walk on the surface of the guide rail working surface to detect the straightness of the guide rail working surface. The detection precision is high and the operation is convenient.

[0004] Although the above-mentioned device can effectively detect a single linear guide rail, it cannot conveniently and quickly detect various different types of linear guide rails during use. The detection efficiency is low, and the detection precision cannot be adjusted according to different types of linear guide rails. Therefore, a linear guide rail flatness detection device is proposed to solve the above-mentioned problems. SUMMARY

[0005] In order to solve the problems that the existing device can effectively detect a single linear guide rail, but it cannot conveniently and quickly detect various different types of linear guide rails during use, and the detection efficiency is low, and the detection precision cannot be adjusted according to different types of linear guide rails, the present application proposes a linear guide rail flatness detection device.

[0006] The technical scheme adopted by the present application to solve the technical problems is as follows: the linear guide rail flatness detection device comprises a detection table, a detection guide rail is arranged at the top end of the detection table, a detection mechanism is arranged at the top end of the detection table, and the detection mechanism is used for detecting the flatness of the detection guide rail.

[0007] The detection mechanism comprises a moving assembly, a height adjusting assembly, an adapting assembly, a fixing assembly and a precision adjusting assembly, the moving assembly comprises a sliding rail and a sliding block, the sliding rail is fixedly connected to the top end of the detection table, the sliding block is slidingly connected to the outer side of the sliding rail, the top end of the moving assembly is provided with a laser emitting module, the height adjusting assembly is arranged between the laser emitting module and the moving assembly, the rear side of the moving assembly is provided with the adapting assembly, the top end of the adapting assembly is fixedly connected with a laser receiving module, and the front end of the laser receiving module is provided with the precision adjusting assembly.

[0008] Preferably, the height adjusting assembly comprises an extension block, the extension block is fixedly connected to the bottom end of the laser emitting module, and the extension block is inserted into the inside of a receiving cavity, the receiving cavity is opened at the top end of the sliding block, a first screw sleeve is fixedly connected to the inner wall of the extension block, the first screw sleeve is in threaded connection with a first screw rod, the bottom end of the first screw rod is in rotational connection with the inner wall of the receiving cavity, a worm wheel is fixedly connected to the position close to the bottom end of the outer side of the first screw rod, the worm wheel is in engagement with a worm gear, and the front end of the worm gear penetrates through the sliding block and extends to the outside of the sliding block to be fixedly connected with a knob, and the worm gear is in rotational connection with the inner wall of the receiving cavity.

[0009] Preferably, the adapting assembly comprises a movable slot, the movable slot is opened at the rear side of the sliding block, a first guide rod is fixedly connected to the inside of the movable slot, a follower plate is slidingly connected to the outer side of the first guide rod, the rear side and the front end of the follower plate are fixedly connected with an adapting seat, the adapting seat is provided with two groups, the two groups of the adapting seat are fixedly connected to the front and rear ends of a bearing seat respectively, the top end of the bearing seat is fixedly connected with the laser receiving module, the bottom end of the adapting seat is opened with a moving slot, a second guide rod is fixedly connected to the inner wall of the moving slot, a moving block is slidingly connected to the outer side of the second guide rod, and a tension spring is wound on the outer side of the second guide rod, the bottom end of the moving block is fixedly connected with an adapting block, an inclined surface is opened at the bottom end of the adapting block, a lubricating gasket is fixedly connected to the inclined surface opened at the bottom end of the adapting block, and the lubricating gasket is made of nylon.

[0010] Preferably, one end of the tension spring close to the moving block is fixedly connected with the moving block, and the other end of the tension spring away from the moving block is fixedly connected to the inner wall of the moving slot.

[0011] Preferably, the side close to the detection guide rail of the adapting block is opened with a first rotating slot, a roller is rotatably connected to the inside of the first rotating slot, and the roller is attached to the outer side of the detection guide rail.

[0012] Preferably, the bottom end of the bearing seat is rotatably connected with two groups of rotating wheels, and the rotating wheels are attached to the top end of the detection guide rail.

[0013] Preferably, the fixing assembly comprises a fixed baffle and a movable baffle, the fixed baffle is fixedly connected to the top end of the detection table, the movable baffle is also arranged on the top end of the detection table, the bottom end of the movable baffle is fixedly connected with a second screw sleeve, the second screw sleeve is threadedly connected to the outer side of a second screw rod, the second screw rod is rotatably connected to the inner wall of a moving cavity, the moving cavity is arranged at the center position of the top end of the detection table close to the rear side, and the rear end of the second screw rod penetrates through the detection table and extends to the outer side of the detection table and is fixedly connected with a rotating knob.

[0014] Preferably, the movable baffle and the fixed baffle are both fixedly connected with anti-skid pads close to the side of the detection guide rail, and the anti-skid pads are made of rubber.

[0015] Preferably, the precision adjusting assembly comprises a receiving lens, the receiving lens is fixedly connected to the front end of the laser receiving module, a second rotating groove is arranged on the outer side of the front end of the receiving lens, the second rotating groove is rotatably connected with a rotating ring, the rotating ring is fixedly connected to the inner wall of a rotating plate, six first sliding grooves are arranged on the inner wall of the rotating plate, one end of a sliding block is slidably connected in the six first sliding grooves, the sliding block is fixedly connected with a shielding baffle, the other end of the sliding block is slidably connected in a second sliding groove, the second sliding groove is designed in a regular hexagon shape and is arranged on a bearing plate, and the bearing plate is fixedly connected to the front end of the receiving lens.

[0016] Preferably, anti-skid patterns are arranged on the outer sides of the rotating knob and the rotating knob, and stoppers are fixedly connected to the front and rear sides of the inner wall of the receiving cavity close to the bottom end position.

[0017] The present application has the advantages that:

[0018] 1. The height adjusting assembly and the adapting assembly are matched to realize the function of being capable of quickly matching with different specifications of linear guide rails for detection, the laser receiving module can be conveniently fixed outside the linear guide rails of different specifications through the adapting assembly, after the laser receiving module is fixed on the linear guide rail, the height of the laser emitting module is adjusted through the height adjusting assembly, so that the laser receiving module can receive the laser emitted by the laser emitting module, thereby effectively detecting various linear guide rails of different specifications, and the problem that the existing device cannot conveniently and quickly detect various linear guide rails of different specifications in use is solved, and the adaptability to guide rails of different specifications is improved.

[0019] 2. The fixing assembly is matched to realize the function of fixing various linear guide rails of different specifications, thereby conveniently detecting the linear guide rails, and effectively avoiding the sliding and deflection of the linear guide rail during detection.

[0020] 3. The application realizes the function of adjusting the detection precision according to the different requirements of the flatness of the guide rails of different specifications, and is more convenient for detecting the linear guide rails of different specifications. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0023] Figure 2 It is a schematic diagram of the first partial cross-sectional three-dimensional structure of the present application;

[0024] Figure 3 It is a schematic diagram of the second partial cross-sectional three-dimensional structure of the present application; Figure 2

[0025] Figure 4 It is a schematic diagram of the third partial cross-sectional three-dimensional structure of the present application;

[0026] Figure 5 It is a schematic diagram of the fourth partial cross-sectional three-dimensional structure of the present application;

[0027] Figure 6 It is a schematic diagram of the fourth partial cross-sectional three-dimensional structure of the present application;

[0028] Figure 7 It is a schematic diagram of the partial exploded structure of the present application;

[0029] Figure 8 It is a schematic diagram of the second sliding chute and the bearing plate three-dimensional structure of the present application.

[0030] ​In the figure: 1, detection table; 2, detection guide rail; 21, sliding rail; 22, sliding block; 23, laser emission module; 24, extension block; 25, storage cavity; 26, first threaded sleeve; 27, first screw; 28, worm gear; 29, worm; 30, knob; 31, stop block; 32, movable slot; 33, first guide rod; 34, follow-up plate; 35, adapter seat; 36, bearing seat; 37, laser receiving module; 38, second guide rod; 39, moving block; 40, tension spring; 41, adapter block; 42, lubricating gasket; 43, first rotating slot; 44, roller; 45, rotating wheel; 46, fixed baffle; 47, movable baffle; 48, anti-skid gasket; 49, second threaded sleeve; 50, second screw; 51, moving cavity; 52, rotating knob; 53, rotating plate; 54, first sliding slot; 55, sliding block; 56, shielding baffle; 57, second sliding slot; 58, bearing plate; 59, rotating ring; 60, second rotating slot; 61, receiving lens; 62, moving slot. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] Embodiment one

[0033] Please refer to Figures 1-8 A straight line guide rail flatness detection device, comprising a detection table 1, the top of the detection table 1 is provided with a detection guide rail 2; the top of the detection table 1 is provided with a detection mechanism, the detection mechanism is used for detecting the flatness of the detection guide rail 2;

[0034] The detection mechanism comprises a moving assembly, a height adjusting assembly, an adapter assembly, a fixing assembly and a precision adjusting assembly, the moving assembly comprises a sliding rail 21 and a sliding block 22, the sliding rail 21 is fixedly connected to the top of the detection table 1, the sliding block 22 is slidably connected to the outer side of the sliding rail 21, the top of the moving assembly is provided with a laser emission module 23, the height adjusting assembly is arranged between the laser emission module 23 and the moving assembly, the rear side of the moving assembly is provided with the adapter assembly, the top of the adapter assembly is fixedly connected with a laser receiving module 37, the front end of the laser receiving module 37 is provided with the precision adjusting assembly; the laser emission module 23 and the laser receiving module 37 are both powered by a battery, the laser receiving module 37 is electrically connected with an indicator lamp, the indicator lamp remains off when receiving laser, and the indicator lamp lights up when no laser is received;

[0035] Further, the adapter assembly comprises a movable slot 32, which is formed in the rear side of the sliding block 22, and a first guide rod 33 is fixedly connected inside the movable slot 32, a follower plate 34 is slidably connected to the outer side of the first guide rod 33, the rear side of the follower plate 34 is fixedly connected with a front end adapter seat 35, the adapter seat 35 is provided with two groups, and the two groups of adapter seats 35 are fixedly connected at the front and rear ends of a bearing seat 36, the top end of the bearing seat 36 is fixedly connected with a laser receiving module 37, the bottom end of the adapter seat 35 is formed with a moving slot 62, a second guide rod 38 is fixedly connected to the inner wall of the moving slot 62, a moving block 39 is slidably connected to the outer side of the second guide rod 38, and a tension spring 40 is wound on the outer side of the second guide rod 38, the bottom end of the moving block 39 is fixedly connected with an adapter block 41, the bottom end of the adapter block 41 is formed with an inclined surface, and a lubricating gasket 42 is fixedly connected to the inclined surface formed at the bottom end of the adapter block 41, the lubricating gasket 42 is made of nylon, one end of the tension spring 40 close to the moving block 39 is fixedly connected with the moving block 39, and the other end of the tension spring 40 away from the moving block 39 is fixedly connected to the inner wall of the moving slot 62, the side of the adapter block 41 close to the detection guide rail 2 is formed with a first rotating slot 43, a roller 44 is rotatably connected inside the first rotating slot 43, the roller 44 is in contact with the outer side of the detection guide rail 2, and the bottom end of the bearing seat 36 is rotatably connected with two groups of rotating wheels 45, the rotating wheels 45 are in contact with the top end of the detection guide rail 2;

[0036] When the flatness of the linear guide rail is detected, the laser receiving module 37 is first fixed on the detection guide rail 2 to be detected, and when the laser receiving module 37 is fixed, the bottom end of the bearing seat 36 is aligned with the detection guide rail 2, and then the bearing seat 36 and the laser receiving module 37 are pressed towards the detection guide rail 2, under the action of the pressure, the two sides of the detection guide rail 2 will extrude the lubricating gasket 42 made of nylon adhered to the adapter block 41, the friction between the adapter block 41 and the outer side of the detection guide rail 2 is reduced through the lubricating gasket 42, and under the action of the inclined surface formed at the bottom end of the adapter block 41, the adapter block 41 moves away from the detection guide rail 2 under the action of the extrusion force, and no longer blocks the detection guide rail 2, the adapter block 41 drives the fixedly connected moving block 39 to move synchronously in the moving slot 62, and pulls the tension spring 40 to produce elastic deformation, when the top end of the detection guide rail 2 contacts the rotating wheel 45 rotatably connected with the bottom end of the bearing seat 36, the two sides of the detection guide rail 2 no longer push the adapter block 41 to continue to move, at this time the adapter block 41 and the moving block 39 move to the original position under the action of the restoring force of the tension spring 40, so that the roller 44 is in contact with the outer side of the detection guide rail 2, the bearing seat 36 and the laser receiving module 37 are fixed on the outer side of the detection guide rail 2, and the sliding friction between the bearing seat 36 and the adapter block 41 and the detection guide rail 2 is converted into rolling friction through the combination of the roller 44 and the rotating wheel 45, thereby reducing the wear of the detection guide rail 2 during detection.

[0037] Further, the height adjusting assembly comprises an extension block 24 fixedly connected to the bottom end of the laser emitting module 23, and the extension block 24 is inserted into a receiving cavity 25 opened at the top end of the sliding block 22, a first screw sleeve 26 is fixedly connected to the inner wall of the extension block 24, the first screw sleeve 26 is threadedly connected with a first screw rod 27, the bottom end of the first screw rod 27 is rotatably connected with the inner wall of the receiving cavity 25, a worm wheel 28 is fixedly connected to the position close to the bottom end on the outer side of the first screw rod 27, the worm wheel 28 is engaged with a worm rod 29, the front end of the worm rod 29 penetrates through the sliding block 22 and extends to the outer side of the sliding block 22 and is fixedly connected with a knob 30, and the worm rod 29 is rotatably connected with the inner wall of the receiving cavity 25;

[0038] In work, after the bearing seat 36 and the laser receiving module 37 are fixed to the outer side of the detection guide rail 2, in order to match the height of the laser emitting module 23 with the laser receiving module 37, the height of the laser emitting module 23 needs to be adjusted, when the height of the laser emitting module 23 is adjusted, only the knob 30 is rotated to drive the synchronous rotation of the worm rod 29 fixedly connected with the knob 30, the rotation of the worm rod 29 drives the synchronous rotation of the engaged worm wheel 28, the rotation of the worm wheel 28 drives the rotation of the fixedly connected first screw rod 27, the first screw sleeve 26 threadedly connected on the outer side of the first screw rod 27 moves up and down and drives the synchronous movement of the fixedly connected extension block 24, which has the effect of adjusting the height of the laser emitting module 23, when the laser emitting module 23 is adjusted to the specified height, the rotation of the knob 30 is stopped; the fixedly connected stop block 31 in the receiving cavity 25 has the effect of limiting the downward movement distance of the extension block 24, avoiding the friction between the inner wall of the extension block 24 and the top end of the first screw rod 27, and the friction between the bottom end of the extension block 24 and the worm wheel 28, and the self-locking characteristics of the worm wheel 28 and the worm rod 29 have the effect of avoiding the automatic falling of the extension block 24.

[0039] When working, when the flatness of the detection guide rail 2 is to be detected, the sliding block 22 is pushed to drive the laser emitting module 23 and the laser receiving module 37 to move synchronously, when the surface of the detection guide rail 2 has protrusions or pits, the carrier 36 and the laser receiving module 37 will float up and down with the protrusions and pits, if the pits and protrusions are within the allowed range, the laser receiving module 37 can always receive the laser emitted by the laser emitting module 23, if the protrusions or pits are too large, the laser receiving module 37 cannot receive the laser emitted by the laser emitting module 23 due to the excessive floating distance, resulting in signal disconnection, according to the number of times of signal disconnection of the laser receiving module 37 in a single detection, the flatness of the detection guide rail 2 can be conveniently and quickly evaluated, when the laser receiving module 37 floats up and down, the adapter seat 35 drives the follow-up plate 34 to slide synchronously in the inside of the movable groove 32, through the cooperation of the movable groove 32 and the first guide rod 33, the laser receiving module 37 and the laser emitting module 23 can keep the freedom in the longitudinal direction during the synchronous transverse movement.

[0040] Further, the fixed assembly includes a fixed baffle 46 and a movable baffle 47, the fixed baffle 46 is fixedly connected to the top end of the detection table 1, the movable baffle 47 is also arranged on the top end of the detection table 1, the bottom end of the movable baffle 47 is fixedly connected with a second screw sleeve 49, the second screw sleeve 49 is threadedly connected to the outer side of a second screw rod 50, the second screw rod 50 is rotatably connected to the inner wall of a moving cavity 51, the moving cavity 51 is opened at the center position of the top end of the detection table 1 close to the rear side, the rear end of the second screw rod 50 penetrates through the detection table 1 and extends to the outer side of the detection table 1 and is fixedly connected with a rotating knob 52, the movable baffle 47 and the fixed baffle 46 are both fixedly connected with anti-skid pads 48 close to the side of the detection guide rail 2, the anti-skid pads 48 are made of rubber material;

[0041] When working, when the detection guide rail 2 is to be fixed, first, one side of the detection guide rail 2 is attached to the fixed baffle 46, then the rotating knob 52 is rotated to drive the fixedly connected second screw rod 50 to rotate synchronously, so that the second screw rod 50 drives the threadedly connected second screw sleeve 49 to move, and then the movable baffle 47 fixedly connected with the second screw sleeve 49 approaches the other side of the detection guide rail 2, the detection guide rail 2 is clamped and fixed by the cooperation of the movable baffle 47 and the fixed baffle 46, the rubber material anti-skid pads 48 adhered on the movable baffle 47 and the fixed baffle 46 play a role in protecting the outer side of the detection guide rail 2 while increasing the friction, avoiding the sliding of the detection guide rail 2 during detection.

[0042] Further, the precision adjusting assembly comprises a receiving lens 61 fixedly connected to the front end of the laser receiving module 37, and a second rotating groove 60 is formed on the outer side of the front end of the receiving lens 61, the second rotating groove 60 is rotatably connected with a rotating ring 59, the rotating ring 59 is fixedly connected to the inner wall of a rotating plate 53, and six first sliding grooves 54 are formed on the inner wall of the rotating plate 53, one end of a sliding block 55 is slidably connected in the six first sliding grooves 54, the sliding block 55 is fixedly connected with a shielding baffle 56, the other end of the sliding block 55 is slidably connected in a second sliding groove 57, the second sliding groove 57 is designed in a regular hexagon, and the second sliding groove 57 is formed on a bearing plate 58 fixedly connected to the front end of the receiving lens 61, when detecting the detection guide rail 2 of different specifications, the detection precision needs to be adjusted according to different requirements, and when adjusting the detection precision, the rotating plate 53 is only rotated, the shielding baffle 56 is deflected with the sliding block 55 as the center through the first sliding groove 54 formed on the rotating plate 53, the deflection amplitude of the six shielding baffles 56 is controlled through the rotation angle of the rotating plate 53, and then the opening range of the bearing plate 58 is controlled, so that the laser is shielded and cannot be detected by the laser receiving module 37 when the laser exceeds the range, the detection precision of the laser receiving module 37 is adjusted through the control of the opening size of the bearing plate 58, and then different specifications of the detection guide rail 2 are adapted, and when the rotating plate 53 is rotated, the rotating ring 59 fixedly connected with the rotating plate 53 is synchronously rotated in the second rotating groove 60.

[0043] The outer sides of the knob 30 and the rotating knob 52 are provided with anti-skid lines, and the front and rear sides of the inner wall of the receiving cavity 25 close to the bottom end position are fixedly connected with stoppers 31, so as to increase the friction effect through the anti-skid lines formed on the outer sides of the knob 30 and the rotating knob 52, and facilitate the rotation of the knob 30 and the rotating knob 52.

[0044] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A linear guide rail flatness testing device, comprising a testing platform (1), wherein a testing guide rail (2) is provided at the top of the testing platform (1); characterized in that: The top of the testing platform (1) is provided with a testing mechanism, which is used to test the flatness of the testing guide rail (2); The detection mechanism includes a moving component, a height adjustment component, an adapter component, a fixing component, and a precision adjustment component. The moving component includes a sliding rail (21) and a sliding block (22). The sliding rail (21) is fixedly connected to the top of the detection table (1), and the sliding block (22) is slidably connected to the outside of the sliding rail (21). A laser emitting module (23) is provided at the top of the moving component. A height adjustment component is provided between the laser emitting module (23) and the moving component. An adapter component is provided at the rear of the moving component. A laser receiving module (37) is fixedly connected to the top of the adapter component. A precision adjustment component is provided at the front end of the laser receiving module (37) to adjust the detection precision according to the different flatness requirements of different specifications of guide rails. The adapter component includes a movable slot (32), which is located on the rear side of the sliding block (22). A first guide rod (33) is fixedly connected inside the movable slot (32). A follower plate (34) is slidably connected to the outer side of the first guide rod (33). The rear side of the follower plate (34) is fixedly connected to the front adapter seat (35). Two sets of adapter seats (35) are provided, and the two sets of adapter seats (35) are respectively fixedly connected to the front and rear ends of the support seat (36). The top end of the support seat (36) is fixedly connected to the laser receiving module (37). Next, each of the adapter seats (35) has a movable groove (62) at its bottom end. A second guide rod (38) is fixedly connected to the inner wall of the movable groove (62). A movable block (39) is slidably connected to the outer side of the second guide rod (38), and a tension spring (40) is wound around the outer side of the second guide rod (38). The bottom end of the movable block (39) is fixedly connected to the adapter block (41). The bottom end of the adapter block (41) has an inclined surface, and a lubricating pad (42) is fixedly connected to the inclined surface at the bottom end of the adapter block (41). The lubricating pad (42) is made of nylon. The structure of the fixing components is used to fix linear guides of various specifications. The precision adjustment component includes a receiving lens (61), which is fixedly connected to the front end of the laser receiving module (37). A second rotating groove (60) is provided on the outer side of the front end of the receiving lens (61). The second rotating groove (60) is rotatably connected to a rotating ring (59). The rotating ring (59) is fixedly connected to the inner wall of a rotating plate (53). The inner wall of the rotating plate (53) is also provided with six sets of first sliding grooves (54). One end of a slider (55) is slidably connected inside each of the six sets of first sliding grooves (54). The slider (55) is fixedly connected to a shielding baffle (56). The other end of the slider (55) is slidably connected inside a second sliding groove (57). The second sliding groove (57) is a regular hexagonal design and is opened on a support plate (58). The support plate (58) is fixedly connected to the front end of the receiving lens (61).

2. The linear guide rail flatness detection device according to claim 1, characterized in that: The height adjustment assembly includes an extension block (24), which is fixedly connected to the bottom end of the laser emitting module (23) and inserted into the inside of the storage cavity (25). The storage cavity (25) is opened at the top of the sliding block (22). A first threaded sleeve (26) is fixedly connected to the inner wall of the extension block (24). The first threaded sleeve (26) is threadedly connected to a first screw (27). The bottom end of the first screw (27) is rotatably connected to the inner wall of the storage cavity (25). A worm gear (28) is fixedly connected to the outer side of the first screw (27) near the bottom end. The worm gear (28) meshes with a worm (29). The front end of the worm (29) passes through the sliding block (22) and extends to the outer side of the sliding block (22) and is fixedly connected to the knob (30). The worm (29) is rotatably connected to the inner wall of the storage cavity (25).

3. The linear guide rail flatness detection device according to claim 2, characterized in that: The end of the tension spring (40) near the moving block (39) is fixedly connected to the moving block (39), and the end of the tension spring (40) away from the moving block (39) is fixedly connected to the inner wall of the moving groove (62).

4. The linear guide rail flatness detection device according to claim 3, characterized in that: Each of the adapter blocks (41) has a first rotating groove (43) on the side near the detection guide rail (2). A roller (44) is rotatably connected inside the first rotating groove (43), and the roller (44) is in contact with the outer side of the detection guide rail (2).

5. The linear guide rail flatness detection device according to claim 4, characterized in that: The bottom end of the support base (36) is rotatably connected to two sets of rotating wheels (45), and the rotating wheels (45) are in contact with the top end of the detection guide rail (2).

6. The linear guide rail flatness detection device according to claim 5, characterized in that: The fixing assembly includes a fixed baffle (46) and a movable baffle (47). The fixed baffle (46) is fixedly connected to the top of the testing table (1). The movable baffle (47) is also set on the top of the testing table (1). The bottom end of the movable baffle (47) is fixedly connected to a second threaded sleeve (49). The second threaded sleeve (49) is threadedly connected to the outside of a second screw (50). The second screw (50) is rotatably connected to the inner wall of a movable cavity (51). The movable cavity (51) is opened at the center position near the rear side of the top of the testing table (1). The rear end of the second screw (50) passes through the testing table (1) and extends to the outside of the testing table (1) and is fixedly connected to a rotating knob (52).

7. The linear guide flatness detection device according to claim 6, characterized in that: Both the movable baffle (47) and the fixed baffle (46) are fixedly connected to anti-slip pads (48) on the side near the detection guide rail (2), and the anti-slip pads (48) are made of rubber.

8. The linear guide flatness detection device according to claim 7, characterized in that: The outer sides of both the knob (30) and the rotating knob (52) are provided with anti-slip textures, and the front and rear sides of the inner wall of the storage cavity (25) near the bottom are fixedly connected with blocks (31).

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