Straightening detection device for linear guide rail

Abstract

The utility model provides a linear guide rail straightening detection device, and relates to the technical field of guide rails. Comprising a bottom plate and a clamping plate arranged on one side of the bottom plate, and further comprises a centering clamping mechanism arranged on one side of a positioning plate and one side of the clamping plate. The centering clamping mechanism comprises a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are symmetrically arranged on the surface of one side of a first nut and the surface of one side of a second nut, the first nut and the second nut are symmetrically arranged on the two sides of a bidirectional ball screw, and the bidirectional ball screw is rotationally arranged on the surface of one side of a positioning plate. One end of the bidirectional ball screw is connected with a driving motor positioned on one side of the positioning plate; wherein the clamping plate is connected with the bottom plate through a stepping structure, the linear guide rails of different specifications can be centered and fixed, the detection of the straightness on the same plane is ensured, the corresponding straightness of different positions is detected, and the detection efficiency of the straightness is improved.

Description

Technical Field

[0001] The utility model relates to the field of guide rails, in particular to a linear guide rail straightening detection device. Background Art

[0002] Linear guides are used in high-precision or high-speed linear reciprocating motion situations, and can bear a certain torque. They can achieve high-precision linear motion under high load conditions. Linear guides are installed in precision machinery such as medical equipment, automation equipment and machine tools. Linear guides are precision parts and have very high requirements for installation flatness. Linear guides need to be straightened after production to ensure their quality.

[0003] A Chinese patent with announcement number CN212944737U discloses a linear guide straightening tool, including a base, on which a first slide rail, a second slide rail and a third slide rail are arranged in parallel, fixing devices are arranged at both ends of the first slide rail, and the middle and second slide rails are slidably connected with straightening devices, the fixing devices include a vertical plate, a fixed plate, a pressure plate, a top plate, a spring and an elbow clamp; the straightening device includes a detection mechanism and a fine-tuning mechanism, the detection mechanism includes a bottom block, a vertical block, a top block and a sliding block, an infrared ranging sensor is embedded in the edge of the top block and downwardly, and a display screen is electrically connected to the upper part, the fine-tuning mechanism includes a coarse-adjusting ratchet, a fine-tuning split cylinder, a straightening threaded rod, and a fixing sleeve, and an adjusting nut is fixed in the fine-tuning split cylinder. The above technical solution is compatible with multi-size parts to be straightened, monitors the straightness in real time, and locally fine-tunes to achieve overall straightening, but the above technical solution cannot fix the linear guides of different specifications in a flat alignment. During the detection process, it cannot be guaranteed that the detection positions are on the same plane, which affects the detection accuracy, and the flatness of different positions cannot be detected.

[0004] Therefore, it is necessary to provide a linear guide rail straightening detection device to solve the above technical problems. Utility Model Content

[0005] The utility model provides a linear guide rail straightening detection device, which solves the problem that the above technical solution cannot fix linear guide rails of different specifications in a flat and aligned manner, and during the detection process, it cannot be ensured that the detection positions are on the same plane, which affects the detection accuracy, and at the same time, the flatness of different positions cannot be detected.

[0006] In order to solve the above technical problems, the utility model provides a linear guide rail straightening detection device, including a base plate, a positioning plate arranged on a surface of one side of the base plate, a mounting frame arranged on the base plate, and a clamping plate arranged on one side of the base plate, and also includes:

[0007] A centering clamping mechanism provided on one side of the positioning plate and the clamping plate;

[0008] The centering clamping mechanism comprises a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are symmetrically arranged on the surface of one side of the first nut and the second nut, the first nut and the second nut are symmetrically arranged on both sides of the bidirectional ball screw, the bidirectional ball screw is rotatably arranged on the surface of one side of the positioning plate, and one end of the bidirectional ball screw is connected to the driving motor located on one side of the positioning plate;

[0009] The clamping plate is connected to the bottom plate through a stepping structure, and a detection structure is arranged between the positioning plate and the mounting frame.

[0010] Preferably, an electromagnetic seat is embedded in the surface of one side of the positioning plate and the clamping plate. The electromagnetic seat is electrically connected to an external power supply and can adsorb and fix the linear guide rail.

[0011] Preferably, an open groove is provided on one side surface of the positioning plate and the clamping plate to facilitate the storage of the first clamping jaw and the second clamping jaw, and a mounting groove is provided on one side surface of the opening groove, and a bidirectional ball screw is rotatably provided in the mounting groove.

[0012] Preferably, the stepping structure includes a transverse lead screw, which is rotatably arranged in a groove body, and the groove body is arranged on one side of the upper surface of the base plate. A transverse nut is arranged on the transverse lead screw, and the transverse nut is connected to the clamping plate, so that the clamping plate can move in steps to meet the fixation of linear guide rails of different lengths.

[0013] Preferably, a guide slider is provided on one side surface of the transverse nut, one end of the guide slider is slidably provided in a guide slot, and the guide slot is provided on one side surface of the slot body, thereby improving the stability of the movement of the transverse nut.

[0014] Preferably, the detection structure includes a cross frame, which is arranged between the positioning plate and the mounting frame, a limiting slide groove is arranged on one side surface of the cross frame, an adjustment port is arranged on one side surface of the cross frame, the adjustment port is connected with the limiting slide groove, and infrared ranging sensors are movably arranged on both sides of the limiting slide groove to adjust the position of the infrared ranging sensor.

[0015] Preferably, a limit slider is provided on one side surface of the infrared ranging sensor, one end of the limit slider is slidably set in the limit slide groove, a guide screw is provided on one side surface of the limit slider, the guide screw is slidably set in the adjustment port, and a threaded locking cap is provided on one side of the guide screw, which can adjust and fix the position of the infrared ranging sensor and detect the straightness of different positions of the linear guide rail.

[0016] Preferably, an electric push rod is provided on one side surface of the positioning plate and the mounting frame, and one end of the piston rod of the electric push rod is connected to the cross frame, so that the use height of the cross frame can be adjusted to meet the use of linear guide rails of different heights.

[0017] Compared with the related art, the linear guide rail straightening detection device provided by the utility model has the following beneficial effects:

[0018] The utility model provides a linear guide rail straightening detection device, which can center and fix linear guide rails of different specifications through synchronous adjustment of the distance between a first clamping jaw and a second clamping jaw, thereby ensuring the detection of straightness on the same plane and detecting the corresponding straightness at different positions at the same time, thereby improving the detection efficiency of straightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the linear guide rail straightening detection device provided by the utility model;

[0020] Figure 2 A half-section structural schematic diagram of the centering clamping mechanism provided by the utility model;

[0021] Figure 3 A half-section structural schematic diagram of the stepping structure provided by the utility model;

[0022] Figure 4 This is a schematic diagram of a half-section structure of the detection structure provided by the utility model.

[0023] Numbers in the figure:

[0024] 1. Centering clamping mechanism, 2. Positioning plate, 3. Electric push rod, 4. Detection structure, 5. Clamping plate, 6. Bottom plate, 7. Mounting frame, 11. First clamping jaw, 12. Driving motor, 13. First nut, 14. Mounting groove, 15. Bidirectional ball screw, 16. Second nut, 17. Second clamping jaw, 18. Opening groove, 19. Electromagnetic seat, 41. Horizontal frame, 42. Adjustment port, 43. Guide screw, 44. Limit slider, 45. Limit slide groove, 46. Infrared ranging sensor, 47. Threaded locking cap, 51. Knob, 52. Horizontal nut, 53. Guide slider, 54. Guide slide groove, 55. Horizontal screw, 56. Slot body. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0026] First embodiment

[0027] Please refer to Figure 1 and Figure 2 The linear guide rail straightening detection device comprises a base plate 6, a positioning plate 2 arranged on a side surface of the base plate 6, a mounting frame 7 arranged on the base plate 6, and a clamping plate 5 arranged on one side of the base plate 6, and further comprises:

[0028] A centering clamping mechanism 1 is arranged on one side of the positioning plate 2 and the clamping plate 5; the centering clamping mechanism 1 includes a first clamping jaw 11 and a second clamping jaw 17, the first clamping jaw 11 and the second clamping jaw 17 are symmetrically arranged on the surface of one side of the first nut 13 and the second nut 16, the first nut 13 and the second nut 16 are symmetrically arranged on both sides of a bidirectional ball screw 15, the bidirectional ball screw 15 is rotatably arranged on the surface of one side of the positioning plate 2, and one end of the bidirectional ball screw 15 is connected to a driving motor 12 located on one side of the positioning plate 2;

[0029] The clamping plate 5 is connected to the base plate 6 via a stepping structure.

[0030] An electromagnetic seat 19 is embedded in the surface of one side of the positioning plate 2 and the clamping plate 5. The electromagnetic seat 19 is electrically connected to an external power source and can adsorb and fix the linear guide rail.

[0031] An opening groove 18 is provided on one side surface of the positioning plate 2 and the clamping plate 5 to accommodate the first clamping jaw 11 and the second clamping jaw 17 . A mounting groove 14 is provided on one side surface of the opening groove 18 . A bidirectional ball screw 15 is rotatably provided in the mounting groove 14 .

[0032] The stepping structure includes a transverse lead screw 55, which is rotatably arranged in a groove body 56, and the transverse lead screw 55 is connected to a knob 51 located on the surface of one side of the base plate 6, so as to control the rotation direction of the transverse lead screw 55 and control the movement of the clamping plate 5. The groove body 56 is arranged on one side of the upper surface of the base plate 6, and a transverse nut 52 is arranged on the transverse lead screw 55, and the transverse nut 52 is connected to the clamping plate 5, so as to enable the clamping plate 5 to move in steps, thereby meeting the fixation of linear guide rails of different lengths.

[0033] A guide slider 53 is disposed on one side surface of the transverse nut 52 . One end of the guide slider 53 is slidably disposed in a guide slot 54 . The guide slot 54 is disposed on one side surface of the slot body 56 , thereby improving the stability of the movement of the transverse nut 52 .

[0034] The working principle of the linear guide rail straightening detection device provided by the utility model is as follows:

[0035] First, one end of the linear guide is attached to the surface of one side of the positioning plate 2, and then the knob 51 is used to drive the transverse screw 55 to rotate, and the transverse nut 52 drives the clamping plate 5 to move. When the clamping plate 5 moves to the other end of the linear guide, the drive motor 12 in the centering clamping mechanism 1 is operated synchronously, and the drive motor 12 drives the bidirectional ball screw 15 to rotate, and the first nut 13 and the second nut 16 move in opposite directions. The first nut 13 drives the first clamping jaw 11 to move, and the second nut 16 drives the second clamping jaw 17 to move. When the first clamping jaw 11 and the second clamping jaw 17 are respectively attached to the side surfaces of the linear guide, the first clamping jaw 11 and the second clamping jaw 17 fix the linear guide at the center position of the base plate 6, and then the straightness of two points on the same plane of the linear guide is detected by the detection structure 4.

[0036] Second embodiment

[0037] Please refer to Figure 3 and Figure 4 Based on the linear guide rail alignment detection device provided in the first embodiment of the present application, the second embodiment of the present application proposes another linear guide rail alignment detection device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0038] Specifically, the difference of the linear guide straightening detection device provided in the second embodiment of the present application is that, in the linear guide straightening detection device, a detection structure 4 is arranged between the positioning plate 2 and the mounting frame 7, the detection structure 4 includes a cross frame 41, the cross frame 41 is arranged between the positioning plate 2 and the mounting frame 7, a limiting slide groove 45 is arranged on the surface of one side of the cross frame 41, an adjustment port 42 is arranged on the surface of one side of the cross frame 41, the adjustment port 42 is connected to the limiting slide groove 45, infrared ranging sensors 46 are movably arranged on both sides of the limiting slide groove 45, the infrared ranging sensor 46 is connected to the external display device through a data line, and the position of the infrared ranging sensor 46 can be adjusted.

[0039] A limit slider 44 is set on the surface of one side of the infrared ranging sensor 46, one end of the limit slider 44 is slidably set in the limit slide groove 45, a guide screw 43 is set on the surface of one side of the limit slider 44, the guide screw 43 is slidably set in the adjustment port 42, and a threaded locking cap 47 is set on one side of the guide screw 43, which can adjust and fix the position of the infrared ranging sensor 46 and detect the straightness of different positions of the linear guide rail.

[0040] After the linear guide is fixed, the infrared ranging sensor 46 is pushed to move. The model of the infrared ranging sensor 46 is VL53L0X. The infrared ranging sensor 46 drives the limit slider 44 to move in the limit slide groove 45. The movement of the limit slider 44 drives the guide screw 43 to move in the adjustment port 42. When the infrared ranging sensor 46 moves to the detection position, tighten the threaded locking cap 47. The threaded locking cap 47 fixes the guide screw 43 on the cross bar. Then, the two infrared ranging sensors 46 detect the distance between the infrared ranging sensor 46 and the linear guide at two points on the same plane of the linear guide, and the straightness of the linear guide is judged by the distance value between the two points.

[0041] An electric push rod 3 is provided on one side surface of the positioning plate 2 and the mounting frame 7. One end of the piston rod of the electric push rod 3 is connected to the cross frame 41. The height of the cross frame 41 can be adjusted to meet the use of linear guide rails of different heights.

[0042] By extending and retracting the electric push rod 3 , the height of the horizontal frame 41 can be adjusted, and then the height of the infrared distance sensor 46 can be adjusted to meet the use of linear guide rails of different heights.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A linear guide rail straightening detection device, comprising a base plate (6), a positioning plate (2) arranged on a surface of one side of the base plate (6), a mounting frame (7) arranged on the base plate (6), and a clamping plate (5) arranged on one side of the base plate (6), characterized in that: Also includes: A centering clamping mechanism (1) arranged on one side of the positioning plate (2) and the clamping plate (5); The centering clamping mechanism (1) comprises a first clamping jaw (11) and a second clamping jaw (17), the first clamping jaw (11) and the second clamping jaw (17) are symmetrically arranged on one side surface of a first nut (13) and a second nut (16), the first nut (13) and the second nut (16) are symmetrically arranged on both sides of a bidirectional ball screw (15), the bidirectional ball screw (15) is rotatably arranged on one side surface of a positioning plate (2), and one end of the bidirectional ball screw (15) is connected to a driving motor (12) located on one side of the positioning plate (2); The clamping plate (5) is connected to the base plate (6) via a stepping structure, and a detection structure (4) is arranged between the positioning plate (2) and the mounting frame (7).

2. The linear guide rail straightening detection device according to claim 1, characterized in that: An electromagnetic seat (19) is embedded in the surface of one side of the positioning plate (2) and the clamping plate (5), and the electromagnetic seat (19) is electrically connected to an external power source.

3. The linear guide rail straightening detection device according to claim 2, characterized in that: An open groove (18) is provided on one side surface of the positioning plate (2) and the clamping plate (5), a mounting groove (14) is provided on one side surface inside the opening groove (18), and a bidirectional ball screw (15) is rotatably provided in the mounting groove (14).

4. The linear guide rail straightening detection device according to claim 1, characterized in that: The stepping structure comprises a transverse lead screw (55), wherein the transverse lead screw (55) is rotatably arranged in a groove body (56), wherein the groove body (56) is arranged on one side of the upper surface of the base plate (6), and a transverse nut (52) is arranged on the transverse lead screw (55), and the transverse nut (52) is connected to the clamping plate (5).

5. The linear guide rail straightening detection device according to claim 4, characterized in that: A guide slider (53) is provided on one side surface of the transverse nut (52), one end of the guide slider (53) is slidably disposed in a guide slot (54), and the guide slot (54) is disposed on one side surface of the slot body (56).

6. The linear guide rail straightening detection device according to claim 1, characterized in that: The detection structure (4) comprises a cross frame (41), the cross frame (41) is arranged between the positioning plate (2) and the mounting frame (7), a limiting slide groove (45) is arranged on one side surface of the cross frame (41), an adjustment port (42) is arranged on one side surface of the cross frame (41), the adjustment port (42) is connected to the limiting slide groove (45), and infrared distance measuring sensors (46) are movably arranged on both sides of the limiting slide groove (45).

7. The linear guide rail straightening detection device according to claim 6, characterized in that: A limit slider (44) is arranged on one side surface of the infrared distance measuring sensor (46), one end of the limit slider (44) is slidably arranged in a limit slide groove (45), a guide screw (43) is arranged on one side surface of the limit slider (44), the guide screw (43) is slidably arranged in an adjustment port (42), and a threaded locking cap (47) is arranged on one side of the guide screw (43).

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