A linear guide straightness detection device

Abstract

The application belongs to the technical field of linear guide rail detection, and specifically discloses a linear guide rail straightness detection device, which comprises a workbench, a mounting groove is formed in the top of the workbench, a mounting frame is fixedly connected to one side of the workbench, a detector body is arranged at the top of the mounting frame, a mounting plate is arranged above the mounting groove, and a mirror is embeddedly arranged on one side of the mounting plate close to the detector body; through the arrangement of the detector body, the mirror, the mounting plate, the connecting plate and the adjusting structure, the height of the detector body and the mirror can be self-adaptively adjusted during the installation of the guide rail, and subsequent adjustment by workers is not needed, so that the operation is simple, the interference factors of manual calibration are reduced, the detection efficiency is improved, and the height position of the detector body can be stabilized during the movement of the mirror, so that the detection effect is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of linear guide rail detection, and specifically discloses a linear guide rail straightness detection device. Background Art

[0002] Linear guides can be divided into three types: roller linear guides, cylindrical linear guides and ball linear guides. They are used to support and guide moving parts to perform reciprocating linear motion in a given direction. Rolling linear guides need to achieve good straightness during production. The straightness of linear guides is one of their quality inspection items, but the existing inspection method mainly adopts the method of installing a reflector on the slider on the surface of the linear guide, adjusting the height of the detector so that the laser can be accurately emitted and reflected on the reflector, and manually adjusting the position of the slider for inspection. This method has a large human interference factor. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a linear guide rail straightness detection device to solve the problem of large human interference factors in existing detection methods.

[0004] To achieve the above objectives, the present invention provides a linear guide straightness detection device, comprising a workbench, a mounting slot is provided on the top of the workbench, a mounting bracket is fixedly connected to one side of the workbench, a detector body is provided on the top of the mounting bracket, a mounting plate is provided above the mounting slot, a reflector is embedded and installed on the side of the mounting plate close to the detector body, a connecting plate is fixedly connected to the bottom of the mounting plate, a driving structure located inside the mounting slot is provided at the bottom of the connecting plate, and an adjustment structure is provided at the bottom of the mounting bracket;

[0005] In which, the driving structure includes two fixed plates arranged on the inner wall of the mounting groove, and the two fixed plates are provided with a shell slidingly connected to the inner wall of the workbench on the opposite sides of the two fixed plates, and the other end of the shell is rotatably connected to a roller slidingly connected to the inner wall of the workbench, and a motor is provided on the other side of one of the rollers, and the inner wall of the shell is slidably connected to an adjusting rod, and the other end of the adjusting rod passes through the shell and is fixedly connected to the surface of the adjacent fixed plate, and a first spring is fixedly connected between the surface of the adjusting rod and the inner wall of the shell.

[0006] In the above technical solution, preferably, an L-rod is provided on the surface of the two fixing plates, one end of the L-rod is located between the two fixing plates, and opposite sides of the two L-rods are rotatably connected with evenly distributed rotating columns.

[0007] In the above technical solution, preferably, the surfaces of the two fixing plates are fixedly connected with mounting seats, a bidirectional screw rod is rotatably connected between the two mounting seats, and the two L rods are threadedly connected to the surfaces of the bidirectional screw rod.

[0008] In the above technical solution, preferably, the adjustment structure includes a trigger block fixedly connected to the bottom of the connecting plate, the cross-sectional shape of the trigger block is a right-angled trapezoid, the inner wall of the trigger block is slidably connected with two symmetrically distributed mounting blocks, one end of the mounting block passes through the trigger block and is fixedly connected to the surface of the adjacent fixed plate, the inner wall of the trigger block is fixedly connected to the limiting rod, the mounting block is slidably connected to the surface of the limiting rod, and a second spring is fixedly connected between the mounting block and the inner wall of the trigger block.

[0009] In the above technical solution, preferably, the adjustment structure also includes a connecting block fixedly connected to one side of the mounting frame, an adjustment chamber is opened inside the connecting block, a trigger piston is slidably connected to the inner wall of the adjustment chamber, the upper end of the trigger piston passes through the connecting block and contacts the bottom of the connecting plate, a third spring is fixedly connected between the surface of the trigger piston and the inner wall of the adjustment chamber, and the interior of the adjustment chamber is filled with hydraulic oil.

[0010] In the above technical solution, preferably, the bottom of the mounting frame is fixedly connected to two symmetrically distributed mounting shells, the inner wall of the mounting shell is slidably connected to an adjusting piston, the upper end of the adjusting piston passes through the mounting frame and is fixedly connected to an adjusting plate, the detector body is arranged on the top of the adjusting plate, a fifth spring is fixedly connected between the surface of the adjusting piston and the inner wall of the mounting shell, and the bottoms of the two mounting shells are connected by a conduit.

[0011] In the above technical solution, preferably, a connecting cavity is opened inside the connecting block, the other end of the conduit is connected to the interior of the connecting cavity, and a flow guide tube is connected to the interior of the connecting block, one end of the flow guide tube is connected to the connecting cavity, and the other end of the flow guide tube is connected to the regulating cavity, and the opening cross-section of the regulating cavity is twice the cross-section of the inner side of the mounting shell.

[0012] In the above technical solution, preferably, the inner wall of the connecting cavity is slidably connected to a blocking block, the surface of the blocking block is fixedly connected to a trigger rod, a fourth spring is fixedly connected between the surface of the trigger rod and the inner wall of the connecting block, and the other end of the trigger rod passes through the connecting block and contacts the surface of the fixed plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting the detector body, reflector, mounting plate, connecting plate and adjustment structure, the height of the detector body and reflector can be adaptively adjusted during the installation of the guide rail. No subsequent adjustment by staff is required. The operation is simple, the interference factors of manual calibration are reduced, and the detection efficiency is improved. In addition, during the movement of the reflector, the height position of the detector body can be stabilized, which effectively improves the detection effect.

[0015] 2. By setting up a driving structure and rotating the bidirectional screw, the two L rods can be driven closer to each other under the action of the bidirectional screw, thereby driving the rotating column to close to the surface of the installed linear guide rail, so that no resistance is caused during its movement. At the same time, the L rod can be driven to move in the direction of the offset of the fixed plate according to the offset of the linear guide rail, thereby driving the adjusting rod to insert into the interior of the shell and stretching the first spring. In this process, the adjusting structure can be cooperated to realize the left and right offset of the reflector position, further improving the detection range. Compared with the traditional method that can only detect one side, this method can realize detection on both sides of the linear guide rail.

[0016] 3. By setting up a driving structure, the roller can be driven to rotate by starting the motor, thereby achieving the effect of automatically driving the reflector to move, reducing the interference error caused by manual movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a partial cross-sectional schematic diagram of the present invention;

[0019] Figure 3 Schematic diagram of the distribution of the connecting plate and the L-rod of the present invention;

[0020] Figure 4 Schematic diagram of the distribution of the mounting block, the second spring and the limiting rod of the present invention;

[0021] Figure 5 Schematic diagram of the distribution of the housing, adjustment rod, roller and motor of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the regulating structure of the present invention.

[0023] In the figure: 1. workbench; 101. mounting slot; 102. mounting bracket; 2. detector body; 201. reflector; 202. mounting plate; 203. connecting plate; 3. driving structure; 301. housing; 302. L rod; 303. rotating column; 304. bidirectional screw rod; 305. motor; 306. adjusting rod; 307. roller; 308. first spring; 309. fixing plate; 4. adjusting structure; 401. trigger block; 402. mounting block; 403. second spring; 404. limiting rod; 405. adjusting plate; 406. connecting block; 407. adjusting chamber; 408. trigger piston; 409. third spring; 410. trigger rod; 411. fourth spring; 412. connecting chamber; 413. conduit; 414. blocking block; 415. fifth spring; 416. adjusting piston; 417. mounting shell. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] like Figures 1-6 The linear guide straightness detection device shown in the figure includes a workbench 1, a mounting groove 101 is formed on the top of the workbench 1, a mounting bracket 102 is fixedly connected to one side of the workbench 1, a detector body 2 is provided on the top of the mounting bracket 102, a mounting plate 202 is provided above the mounting groove 101, a reflector 201 is embedded and installed on the side of the mounting plate 202 close to the detector body 2, a connecting plate 203 is fixedly connected to the bottom of the mounting plate 202, a driving structure 3 located inside the mounting groove 101 is provided at the bottom of the connecting plate 203, and an adjustment structure 4 is provided at the bottom of the mounting bracket 102;

[0027] Among them, the driving structure 3 includes two fixed plates 309 arranged on the inner wall of the mounting groove 101, and the opposite sides of the two fixed plates 309 are provided with a shell 301 that is slidably connected to the inner wall of the workbench 1, and the other end of the shell 301 is rotatably connected to a roller 307 that is slidably connected to the inner wall of the workbench 1, and a motor 305 is provided on the other side of one of the rollers 307. The inner wall of the shell 301 is slidably connected to an adjusting rod 306, and the other end of the adjusting rod 306 passes through the shell 301 and is fixedly connected to the surface of the adjacent fixed plate 309, and a first spring 308 is fixedly connected between the surface of the adjusting rod 306 and the inner wall of the shell 301.

[0028] By starting the motor 305, the roller 307 connected to it can be driven to rotate, thereby sliding along the inner wall of the workbench 1. Specifically, the bottom of the motor 305 is provided with a mounting platform that is slidably connected to the inner wall of the workbench 1, so it will not affect the use of the motor 305. The detector body 2 can emit laser to the reflector 201. After reflection by the reflector 201, the detector body 2 can receive the reflected laser and judge the straightness of the linear guide rail based on the offset of the laser reflection.

[0029] like Figures 1-6 As shown, an L-rod 302 is provided on the surface of the two fixing plates 309 , one end of the L-rod 302 is located between the two fixing plates 309 , and the opposite sides of the two L-rods 302 are rotatably connected to evenly distributed rotating columns 303 .

[0030] The surfaces of the two fixing plates 309 are fixedly connected with mounting seats, a bidirectional screw rod 304 is rotatably connected between the two mounting seats, and the two L rods 302 are threadedly connected to the surfaces of the bidirectional screw rod 304 .

[0031] By rotating the bidirectional screw rod 304, the two L rods 302 can be driven closer to each other under the action of the bidirectional screw rod 304, thereby driving the rotating column 303 to be close to the surface of the installed linear guide rail, so that no resistance is caused during its movement. At the same time, the L rod 302 and the fixed plate 309 can be driven to move along the bending direction according to the bending changes of the side of the linear guide rail. In this process, the adjustment structure 4 can be cooperated to realize the left and right offset of the position of the reflector 201, further improving the detection range. Compared with the traditional method of only being able to detect one side, this method can realize detection on both sides of the linear guide rail.

[0032] like Figures 1-6 As shown, the adjustment structure 4 includes a trigger block 401 fixedly connected to the bottom of the connecting plate 203. The cross-sectional shape of the trigger block 401 is a right-angled trapezoid. The inner wall of the trigger block 401 is slidably connected with two symmetrically distributed mounting blocks 402. One end of the mounting block 402 passes through the trigger block 401 and is fixedly connected to the surface of the adjacent fixed plate 309. The inner wall of the trigger block 401 is fixedly connected to the limit rod 404. The mounting block 402 is slidably connected to the surface of the limit rod 404, and a second spring 403 is fixedly connected between the mounting block 402 and the inner wall of the trigger block 401.

[0033] During the installation of the guide rail, the guide rail is pushed into the interior of the installation slot and fixed using the preset installation holes on the surface of the guide rail with bolts or the like. When inserted into the interior of the installation slot, the guide rail can push the inclined surface of the trigger block 401 so that it moves upward along the inner side of the two fixed plates 309 through the installation block 402 and the limit rod 404, so that the bottom surface of the trigger block 401 is close to the top surface of the guide rail, so as to facilitate the detection of the straightness of the top surface of the guide rail.

[0034] The adjustment structure 4 also includes a connecting block 406 fixedly connected to one side of the mounting frame 102, an adjustment chamber 407 is opened inside the connecting block 406, and a trigger piston 408 is slidably connected to the inner wall of the adjustment chamber 407. The upper end of the trigger piston 408 passes through the connecting block 406 and contacts the bottom of the connecting plate 203. A third spring 409 is fixedly connected between the surface of the trigger piston 408 and the inner wall of the adjustment chamber 407, and the interior of the adjustment chamber 407 is filled with hydraulic oil.

[0035] The bottom of the mounting frame 102 is fixedly connected to two symmetrically distributed mounting shells 417, the inner wall of the mounting shell 417 is slidably connected to an adjusting piston 416, the upper end of the adjusting piston 416 passes through the mounting frame 102 and is fixedly connected to an adjusting plate 405, the detector body 2 is arranged on the top of the adjusting plate 405, and a fifth spring 415 is fixedly connected between the surface of the adjusting piston 416 and the inner wall of the mounting shell 417, and the bottoms of the two mounting shells 417 are connected by a conduit 413.

[0036] A connecting cavity 412 is provided inside the connecting block 406, and the other end of the conduit 413 is connected to the interior of the connecting cavity 412. A flow guide tube is connected to the interior of the connecting block 406, one end of the flow guide tube is connected to the connecting cavity 412, and the other end of the flow guide tube is connected to the regulating cavity 407. The cross-section of the regulating cavity 407 is twice the cross-section of the inner side of the mounting shell 417.

[0037] The inner wall of the connecting cavity 412 is slidably connected to a blocking block 414, the surface of the blocking block 414 is fixedly connected to a trigger rod 410, a fourth spring 411 is fixedly connected between the surface of the trigger rod 410 and the inner wall of the connecting block 406, and the other end of the trigger rod 410 passes through the connecting block 406 and contacts the surface of the fixed plate 309.

[0038] During the installation process, the guide rail pushes the trigger block 401 upward to release the squeeze on the trigger piston 408. Under the action of the third spring 409, the trigger piston 408 is driven to move upward and squeeze the hydraulic oil stored in the adjustment chamber 407, so that the hydraulic oil is injected into the interior of the connecting chamber 412 through the guide tube, and is injected into the interior of the mounting shell 417 from the bottom of the two mounting shells 417 under the action of the conduit 413, thereby achieving the effect of pushing the adjustment piston 416 upward. In this process, the fifth spring 415 is compressed. Since the opening cross-section of the adjustment chamber 407 is twice the inner cross-section of the mounting shell 417, the hydraulic oil squeezed by the upward movement of the trigger piston 408 is introduced into the two mounting shells 417 to push the adjustment piston 416 to the same height, thereby achieving the effect of driving the reflector 201 and the detector body 2 to move upward synchronously. No subsequent calibration is required, and the operation is simple.

[0039] When the driving structure 3 drives the reflector 201 to move, the fixed plate 309 is separated from the trigger rod 410, so that under the action of the fourth spring 411, the trigger rod 410 is reset and the blocking block 414 blocks the connection between the guide tube and the conduit 413. At this time, the hydraulic oil cannot continue to flow, thereby ensuring the high stability of the detector body 2 and improving the subsequent detection effect.

[0040] Working principle: The guide rail is installed inside the mounting groove 101. During this process, by rotating the bidirectional screw rod 304, the two L rods 302 can be driven to approach each other under the action of the bidirectional screw rod 304, thereby driving the rotating column 303 to be close to the surface of the installed linear guide rail, so that there will be no resistance during its movement. At the same time, according to the offset of the linear guide rail, the L rod 302 can be driven to move in the direction of the offset of the fixed plate 309, thereby driving the adjustment rod 306 to insert into the interior of the housing 301 and stretching the first spring 308. In this process, the adjustment structure 4 can be cooperated to realize the left and right offset of the position of the reflector 201, further improving the detection range. Compared with the traditional method that can only detect one side The method can realize the detection of both sides of the linear guide rail. During the installation process, the guide rail pushes the trigger block 401 to move upward, thereby releasing the squeezing of the trigger piston 408. Under the action of the third spring 409, the trigger piston 408 is driven to move upward, and the hydraulic oil stored in the adjustment chamber 407 is squeezed, so that the hydraulic oil is injected into the interior of the connecting chamber 412 through the guide tube, and is injected into the interior of the mounting shell 417 from the bottom of the two mounting shells 417 under the action of the conduit 413, thereby achieving the effect of pushing the adjusting piston 416 to move upward. In this process, the fifth spring 415 is compressed, thereby achieving the effect of synchronously driving the reflector 201 and the detector body 2 to move upward synchronously, without the need for subsequent calibration.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear guide rail straightness detection device, comprising a workbench (1), characterized in that: The workbench (1) has a mounting groove (101) on its top, a mounting frame (102) fixedly connected to one side of the workbench (1), a detector body (2) arranged on the top of the mounting frame (102), a mounting plate (202) arranged above the mounting groove (101), a reflector (201) embedded and mounted on a side of the mounting plate (202) close to the detector body (2), a connecting plate (203) fixedly connected to the bottom of the mounting plate (202), a driving structure (3) located inside the mounting groove (101) arranged at the bottom of the connecting plate (203), and an adjusting structure (4) arranged at the bottom of the mounting frame (102); The driving structure (3) comprises two fixing plates (309) arranged on the inner wall of the mounting groove (101), and the opposite sides of the two fixing plates (309) are provided with a shell (301) slidably connected to the inner wall of the workbench (1), and the other end of the shell (301) is rotatably connected to a roller (307) slidably connected to the inner wall of the workbench (1), and a motor (305) is provided on the other side of one of the rollers (307), and the inner wall of the shell (301) is slidably connected to an adjusting rod (306), and the other end of the adjusting rod (306) passes through the shell (301) and is fixedly connected to the surface of the adjacent fixing plate (309), and a first spring (308) is fixedly connected between the surface of the adjusting rod (306) and the inner wall of the shell (301); The regulating structure (4) includes a trigger block (401) fixedly connected to the bottom of the connecting plate (203), the cross-section of the trigger block (401) is a right-angled trapezoid, the inner wall of the trigger block (401) is slidably connected to two symmetrically distributed mounting blocks (402), one end of the mounting block (402) passes through the trigger block (401) and is fixedly connected to the surface of the adjacent fixed plate (309), the inner wall of the trigger block (401) is fixedly connected to a limiting rod (404), the mounting block (402) is slidably connected to the surface of the limiting rod (404), and a second spring (403) is fixedly connected between the mounting block (402) and the inner wall of the trigger block (401); The regulating structure (4) further comprises a connecting block (406) fixedly connected to one side of the mounting frame (102), an regulating chamber (407) being provided inside the connecting block (406), a trigger piston (408) being slidably connected to the inner wall of the regulating chamber (407), an upper end of the trigger piston (408) passing through the connecting block (406) and contacting the bottom of the connecting plate (203), a third spring (409) being fixedly connected between the surface of the trigger piston (408) and the inner wall of the regulating chamber (407), and the interior of the regulating chamber (407) being filled with hydraulic oil; The bottom of the mounting frame (102) is fixedly connected to two symmetrically distributed mounting shells (417), the inner wall of the mounting shell (417) is slidably connected to an adjusting piston (416), the upper end of the adjusting piston (416) passes through the mounting frame (102) and is fixedly connected to an adjusting plate (405), the detector body (2) is arranged on the top of the adjusting plate (405), a fifth spring (415) is fixedly connected between the surface of the adjusting piston (416) and the inner wall of the mounting shell (417), and the bottoms of the two mounting shells (417) are connected to a conduit (413); A connecting cavity (412) is provided inside the connecting block (406), the other end of the conduit (413) is connected to the inside of the connecting cavity (412), a flow guide tube is connected to the inside of the connecting block (406), one end of the flow guide tube is connected to the connecting cavity (412), and the other end of the flow guide tube is connected to the regulating cavity (407), and the cross-section of the regulating cavity (407) is twice the cross-section of the inner side of the mounting shell (417); The inner wall of the connecting cavity (412) is slidably connected to a blocking block (414), a trigger rod (410) is fixedly connected to the surface of the blocking block (414), a fourth spring (411) is fixedly connected between the surface of the trigger rod (410) and the inner wall of the connecting block (406), and the other end of the trigger rod (410) passes through the connecting block (406) and contacts the surface of the fixing plate (309); During the installation of the guide rail, the guide rail is pushed into the interior of the installation slot. When inserted into the interior of the installation slot, the guide rail pushes the inclined surface of the trigger block (401) so that it moves upward along the inner sides of the two fixing plates (309) through the installation block (402) and the limiting rod (404), so that the bottom surface of the trigger block (401) is in close contact with the top surface of the guide rail.

2. A linear guide rail straightness detection device according to claim 1, characterized in that: An L-rod (302) is provided on the surface of the two fixing plates (309), one end of the L-rod (302) is located between the two fixing plates (309), and the opposite sides of the two L-rods (302) are rotatably connected to evenly distributed rotating columns (303).

3. A linear guide rail straightness detection device according to claim 2, characterized in that: The surfaces of the two fixing plates (309) are fixedly connected to mounting seats, a bidirectional screw rod (304) is rotatably connected between the two mounting seats, and the two L rods (302) are threadedly connected to the surfaces of the bidirectional screw rod (304).

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